117 results on '"sadra"'
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2. Muslim philosophers on the privation theory of evil.
- Author
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Saeedimehr, Mohammad
- Subjects
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MUSLIMS , *GOOD & evil , *SLEEP deprivation - Abstract
Muslim philosophers commonly endorse a version of the so-called 'privation theory of evil' (PTE), according to which all essential evils consist in the non-existence of an entity or privation of a deserved perfection. In this article, I first provide a short sketch of PTE based on clarification of its main conceptual components. Then I examine the main reasons for the truth of PTE offered by Muslim philosophers and show that none of them is sufficiently plausible. Finally, I investigate the most significant objections against PTE and criticize the proposed responses. [ABSTRACT FROM AUTHOR]
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- 2023
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3. Demystifying the Theory of the Unity of Knower and Known: A Comparative Study of the Views of Ṣadrā and Shoemaker Regarding Self-Knowledge.
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Sarkarpour, Zahra and Khazaei, Zahra
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SHOEMAKERS ,THEORY of self-knowledge ,BLINDNESS ,AWARENESS ,MOTIVATION (Psychology) - Abstract
Copyright of Dialogue: Canadian Philosophical Review is the property of Cambridge University Press and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2023
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- View/download PDF
4. Realism of Sadra and Wittgenstein
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Mehdi Mohammadi and Asghar Vaezi
- Subjects
sadra ,tabatabai ,wittgenstein ,realism ,idealism ,Philosophy (General) ,B1-5802 - Abstract
Tabatabai and Motahari consider Sadra's philosophy to be a realistic philosophy and claim a kind of realism in the book "Principles of Philosophy and the Method of Realism". Ilham Dilman also believes that Wittgenstein's rejection of realism does not make him an idealist. Rather, Wittgenstein is also considered a realist in a sense. This article examines and compares the realism proposed in "Principles..." on the one hand and the realism that Dillman attributes to Wittgenstein on the other hand.
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- 2022
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5. Seeking Galtung’s cultural peace in Sadrian intellectual system
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Yahya Sabbaghchi and Tayebeh Mirmohammad Hosseini
- Subjects
peace ,sadra ,galtung ,pluralism ,human dignity ,divine mercy ,cultural violence ,Philosophy. Psychology. Religion ,Jurisprudence. Philosophy and theory of law ,K201-487 - Abstract
The famous Norwegian pacifist Johann Galtung considers violence to have three sides: direct, structural and cultural. Cultural violence refers to a type of violence that is allowed in the context of a culture and its perpetration is not considered negative and inappropriate, and also is the cause or justification of other types of violence. In Galtung's view, culture includes ideology, religion, language, art, etc. In this article, in accordance with Sadra's intellectual system, we will deal only with the theological aspects of culture and ignore other aspects. Religious violence is a form of cultural violence in which a "religion" legitimizes violence. The view of the perpetrators of such violence is knowing oneself as the absolute right and considering others as the absolute void, which leads to the sanctification of violence and intolerance of others. The present article aims to show that there are effective principles for reducing this type of violence in Sadra's intellectual system. In addition to rejecting epistemic pluralism, Sadra believes that most human beings will benefit from salvation in the hereafter - which is considered a kind of salvation pluralism. Such a view, by broadening the tolerance of others paves the way for the reduction of religious violence, and in Galtung's words, cultural violence. Also, the inherent dignity that Sadra bestows on human beings is a strong obstacle to religious violence. In addition, man's vast divine mercy and being the caliph of God cause human mercy to outweigh their anger towards the creatures, and as a result, violence gives way to peace and friendship. The impossibility of compulsion in religion is also one of Sadra's intellectual principles in this regard. These principles can be deduced from the principles of the authenticity of existence, gradation in existence, the concoimtance of existence and goodness and the substantial motion.
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- 2022
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6. The study of Sadra's social justice theory from the point of view of political philosophy
- Author
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sayyed Ali Akbar Hashemi Karuii and ahmad vaezi
- Subjects
social justice ,sadra ,political philosophy ,human nature ,natural civilization ,Philosophy. Psychology. Religion ,Jurisprudence. Philosophy and theory of law ,K201-487 - Abstract
The main purpose of this essay was to answer the fundamental questions of justice research in the field of political philosophy. To achieve this goal, by first examining Sadra's work, his views on social justice were extracted, and then his explicit answers to these questions were attempted. Accordingly, the findings of the study indicate that: 1. From his point of view, there are three bases for the theory of justice (the nature of human nature, how human beings interact with each other in the presupposed social state, and the relationship of human nature with how society is formed). 2. Justice is not the ultimate goal and true virtue. 3. The law is the source of access to the content of justice. 4. Social justice is contractual. 5. And finally, the possibility of establishing justice in society is only possible through effort, and one of the consequences of establishing justice in society is the sovereignty of rationality, and society without justice is not a suitable place for a blissful life. Importantly, many of the fundamental questions of political philosophy about justice remain unanswered in Sadra's works.
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- 2022
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7. توضیح نسبت مرگ ارادی، معرفت و اخلاق در اندیشۀ صدرا.
- Author
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مجید تندر and سمیه ذاکری
- Abstract
Copyright of Naqd Va Nazar is the property of Islamic Sciences & Culture Academy and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2022
- Full Text
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8. Mystical Awakening (Yaqzah) and Being-Mindfulness: Towards a Comparative Understanding of the Mystical Relevance of the Ontological Philosophies of Heidegger and Sadra
- Author
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Beytollah Naderlew, Bidhendi Mohammad, and Mohammad Javad Safian
- Subjects
mystical awakening ,being-mindfulness ,comparative ontology ,sadra ,heidegger ,Philosophy (General) ,B1-5802 - Abstract
Sadra and Heidegger share a common fundamental concern, i.e. the retrieve of the question of Being. Their whole philosophical career in one sense has been devoted to the accomplishment of this single task. They belong to different philosophical traditions and have lived in different worlds and have had different spiritual and intellectual ideals. However, their ontological concern have numerous points of similarity and can be comparatively assayed. The mystical dimension of the philosophical discourses of these two philosophers of the Truth of Being is one of the significant comparative issues that can be studied in view of a certain set of mystical concepts. One of the key mystical concepts is Yaqzah or mystical awakening that refers to the existential awareness that occurs in the mystic following a Divine enlightenment. The current essay seeks to comparatively study the mystical relevance of the notion of Being-Mindfulness of Sadra and Heidegger in view of the mystical concept of Yaqzah. It has been shown that despite undeniable differences we can discern significant similarities in both notions and take a constructive step for more integrative understanding of human condition as a whole.
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- 2020
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9. The Possibility of the Nobler (imkān al-ashraf) in Ṣadrā's Philosophy and Its Historical Origins.
- Author
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Erdt, Agnieszka
- Abstract
The principle known as the possibility of the nobler (qāʿidat imkān al-ashraf) is arguably one of the most often employed principles in later Islamic philosophy. In its standard formulation it states that if something baser exists, a nobler thing must have existed prior to it. A similar argument from the degrees of perfections has had a long career in the history of Western philosophy as well, with its beginnings reaching Stoicism. In Christian theology and philosophy it serves most importantly as a proof for the existence of God in the so-called henological argument of Aquinas. In Islamic philosophy it directly derives from the ex uno non fit nisi unum principle. Since the formulation of its standard version by al-Suhrawardī, the validity of the principle has been conditioned on that it is only applicable to the intelligible beings, hence its main objective is to offer a proof for the existence of the intellects. The article analyzes the application of the principle in Ṣadrā's philosophy and enquires about its historical roots. [ABSTRACT FROM AUTHOR]
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- 2022
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10. The Role of Knowledge and Action in Man’s Gradual Perfection According to Sadra
- Author
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Mohammad Zabihi, Ali Alahbadashti, and Ali Nejat Raizan
- Subjects
soul ,knowledge ,action ,substantive motion ,gradual perfection ,sadra ,Philosophy of religion. Psychology of religion. Religion in relation to other subjects ,BL51-65 - Abstract
Mohammad Zabihi* ׀ Ali Alahbadashti** ׀ Ali Raizan*** Received: 24/08/2018 | Accepted: 02/01/2019 Abstract The Human soul has two faculties of theoretical intellect and practical intellect. The soul’s divine matter has the potential to elevate and seek absolute perfection and if man abandons it purposelessly, it will go towards darkness. The gradually perfecting and evolutionary qualities of the soul are among the indisputable principles of Sadrian philosophy and substantive motion is one of its main arguments. Based on this, man is constantly in a state of motion and becoming. The main discourse of this article is that man’s gradually perfecting motion in Sadrian philosophy towards ultimate happiness and the peak of existence is not possible except through knowledge and action. Knowledge and action correlate to one another and each is the cause for the development and actualization of a more perfect degree of the other. Although, in terms of assigning value knowledge is higher than action because in the initial stage knowledge is the cause for action in a way that without it action has no meaning; and in higher stages as well, knowledge is the purpose of action and action is the prelude and constituent of knowledge which results in the removal of inner and outer obstacles and veils, i.e. it creates the groundwork so that man’s divine existence becomes manifest and results in a knowledge known as “Divine Knowledge”.
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- 2019
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11. A Review of Immutable Essences and Imprinted Forms and a Critique of Sadra's Objections in regards to Imprinted Forms
- Author
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A'zam* Airajinia and Zahra Hasani Karqand
- Subjects
divine knowledge ,immutable entities ,imprinted forms ,avicenna ,sadra ,Philosophy of religion. Psychology of religion. Religion in relation to other subjects ,BL51-65 - Abstract
The two theories of immutable essences and imprinted forms which have been presented in order to explain pre-creational knowledge and which have a special role in the area of compulsion and choice, and predestination and fate, have been analyzed and studied by many intellectuals; some have accepted these theories and others have criticized them; Sadra has defended the theory of immutable essences and criticized the theory of imprinted forms. This paper seeks to critique Sadra's objections to imprinted forms by explaining the essence and manner of occurrence of immutable essences and explaining Divine knowledge through them, and also by studying the circumstance of Divine knowledge through Avicenna's imprinted forms by finding the common aspects between the two theories; it also seeks to show that Sadra's objections are valid if imprinted forms are quiddities and cause forms to occur in God's essence; whereas the study clearly shows that imprinted forms, like immutable essences, are prerequisites of His essence and are existential entities that God's essence is attributed with and the same way that God's detailed knowledge can be explained through immutable essences it can also be analyzed through imprinted forms so much so that the God's detailed knowledge is more deservedly applied to that than to immutable entities.
- Published
- 2018
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12. A Review of the Opposition of Unity and Diversity in Sadra's Theory of Gradation
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Raziye Janali Zadeh and Seyed Muhammad Ali Dibaji
- Subjects
unity ,diversity ,gradation ,opposition ,sadra ,Philosophy of religion. Psychology of religion. Religion in relation to other subjects ,BL51-65 - Abstract
The discussion regarding "Unity and Diversity" is one of the most important philosophical issues. An explanation regarding the manner of relation between one and many is one of the issues which is a point of difference in the opinions of the philosophers; from among the philosophers, Sadra, while rejecting all four types of opposition (contradiction, privation and possession, contrast, mutual correlation) and based on his own foundations in transcendental philosophy, addresses the theory of gradational opposition; but since he still speaks of the opposition of unity and diversity in some of his works, an important question arises here which is that if unity and diversity are two opposing concepts, how is this issue true in view of his theory regarding gradational unity? And is this opposition, essential or secondary? In answer to this question, as will be addressed in this article, Sadra in some of his works, in contrast to the views of other philosophers and while considering the opposition between the two to be essential, believes it to be a fifth type of opposition in which the difference between unity and diversity is not in the exclusion of the essential characteristics of one another but rather is in the extent of difference of completeness and deficiency.
- Published
- 2018
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13. Restaurování sádrového modelu Touha k pomníku Františka Palackého v Praze od Stanislava Suchardy
- Author
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Rejman, Petr, Vyhnánková, Šárka, Rejman, Petr, and Vyhnánková, Šárka
- Abstract
Bakalářská práce se zabývá komplexním restaurátorským zásahem na sádrovém modelu sochy Touhy z depozitáře Vily Stanislava Suchardy v Praze. Touha byla následně realizována ve dvojnásobném měřítku v bronzu coby jedna z postav skupiny Historie na zadní straně pomníku Františka Palackého. Kromě několika přípravných návrhů celého pomníku se dochovala tato plastika jako jediná samostatná figura z Palackého pomníku, patrně proto, že modelem stála Suchardova dcera Marta. Jedná se o samostatné řešení restaurátorského úkolu v plném rozsahu od zpracování koncepce restaurování přes důkladný restaurátorský, umělecko - historický a chemicko - technologický průzkum až po vlastní restaurování a zpracování restaurátorské dokumentace. Průzkumová zpráva kriticky vyhodnocuje a srovnává testované materiály a postupy pro restaurování s přihlédnutím k rešerši. Na konci dokumentace je přiložena fotografická a grafická dokumentace mapující podrobně stav před restaurováním, celý postup prací a stav po restaurování a výsledky laboratorních průzkumů., This thesis presents a complex restoration treatment on a plaster cast depicting a Desire. It belongs to the collection of the Stanislav Sucharda Foundation and Museum. The plaster cast was later fabricated in bronze in a twice bigger size to be installed as one of the figures from the group History on the reverse of František Palacký monument in Prague. Apart from a few preliminary plaster casts of the whole of Palacký monument, this cast depicting a Desire is the only freestanding figure extant to this day, presumably from the reason, that as a model was standing Sucharda's daughter Marta. The thesis consists of detailed restoration research, the conception of the treatment and a description of the plaster cast. It contains further the restoration treatment itself with photographic and graphic documentation. The research report critically evaluates tested materials and technological methods, which were applied to the restoration of this plaster sculpture taking into account previous in-depth research. At the end are attached the results of a technological survey, complete photographic documentation of a condition before restoration, restoration works, and a state after treatment., Fakulta restaurování, Studentka formou ppt prezentace představila restaurování zadané skulptury. Reagovala na vznesené dotazy a drobné připomínky v posudcích. Vzhledem ke kvalitě provedených prací, restaurátorské dokumentace, resp. bakalářské práce, komise doporučila hodnocení "A"., Dokončená práce s úspěšnou obhajobou
- Published
- 2023
14. Analyzing the Dimensionality of Place Attachment and Its Relationship with Residential Satisfaction in New Cities: The Case of Sadra, Iran.
- Author
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Gheibi, Dariush, Hesari, Elham, Peysokhan, Mina, Havashemi, Abbas, Ghafourian, Mitra, and Bayat, Fatemeh
- Subjects
- *
PLACE attachment (Psychology) , *STRUCTURAL equation modeling , *CONFIRMATORY factor analysis , *SATISFACTION , *GOODNESS-of-fit tests - Abstract
During the recent decades, new cities have been set up around Iranian main cities, after exclusive pre-planning and investigations. However, no significant research studies have concentrated on the level of place attachment (PA) and residential satisfaction (RS) of those residing in these areas, with regard to the existing apparent differences compared to older cities. The present study took advantage from the data gathered in Sadra new city initially to examine PA as a second order factor and then, to assess its relationship with RS. To do so, a survey was conducted on 201 respondents from Sadra new city and confirmatory factor analysis and structural equation modelling (SEM) were used to explore research model. The results of these analyses confirmed that PA as a second order factor consists of four identified dimensions, namely: place identity, place dependence, place social bonding, and place affect. Moreover, SEM analysis indicated appropriate level of goodness of fit demonstrated by the model proposed in this study, showing positive and significant effect of PA variable on RS. [ABSTRACT FROM AUTHOR]
- Published
- 2019
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15. LOGIKA WUJUD SADRA MERETAS NALAR RADIKALISME BERAGAMA
- Author
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Ulya Ulya
- Subjects
struktur logika ,konsepsi wujud ,Ṣadra ,radikalisme ,Philosophy. Psychology. Religion ,Islam ,BP1-253 - Abstract
Abstract: Ṣadra was a philosopher whose thought remains unique. Its uniqueness lies in his ability to articulate the various traditions of thoughts that grew and developed rapidly in Persia, the land of his birth. The traditions were peripatetic, illuminative, gnostic, and theological tradition of Islam. It has necessitated Persia as a heterogeneous region. This heterogeneity, to some extent, can susceptibly bring conflict i.e., physical violence from hurting to even casting innocent human life. Indeed, the thought of Ṣadra was born within the era of a deep reflection process responding to the socio-cultural sphere. Also, it answered the issues that emerged at that time i.e., how the heterogeneous condition did not lead to intolerance, violence, and even acts of terror, instead created a safe, peace, and harmonious atmosphere. By his thought, Ṣadra did something very valuable to solve the problems in the country. Sadra’s thought is built up by and inherent with his basic idea, fundamental and logical structure of transcendence which are relevant to be socialized in a plural and heterogeneous society in which conflict and violence are vulnerable. Socialization of logica structure is relevant for attitudes and behaviors of people since they do not appear suddenly, yet are formed due to reason or logic or way of thinking. Thus, the study of the classical intellectual treasures potentially provides a meaningful contribution to be a basic solution for similar problems existing in nowadays. Abstrak: Sadra adalah seorang filosof yang produk pemikirannya tergolong unik. Keunikannya terletak pada kepiawaiannya mendialogkan antar berbagai tradisi pemikiran yang tumbuh dan berkembang pesat di Persia, tanah kelahirannya. Tradisi pemikiran dimaksud adalah tradisi paripatetik, tradisi illuminatif, tradisi gnosis, dan tradisi teologi Islam. Hal ini telah meniscayakan Persia menjadi sebuah wilayah yang heterogen. Heterogenitas rentan memunculkan konflik sampai aksi kekerasan fisik yang seringkali melukai, bahkan melayangkan jiwa manusia tak berdosa. Sesungguhnya pemikiran Sadra lahir sebagai anak zaman dari sebuah proses refleksi mendalam, merespon kondisi sosial-kultural, menjawab persoalan yang berkembang saat itu: bagaimana agar sebuah kondisi yang heterogen tidak melahirkan intoleransi, kekerasan, bahkan aksi-aksi teror, tetapi justru tercipta suasana aman, damai, dan harmonis. Dari pemikiran wujudnya, Sadra melakukan sesuatu yang sangat berharga di negerinya dalam rangka memecahkan persoalan tersebut. Dalam pemikiran wujudnya ini terbangun dan inheren di dalamnya ide dasar, struktur fundamental, struktur logika transendensi yang relevan untuk disosialisasikan dalam masyarakat berbasis plural dan heterogen yang rentan konflik dan kekerasan tersebut. Sosialisasi struktur logika tersebut relevan karena sikap dan perilaku seseorang tidaklah muncul secara tiba-tiba tetapi terbentuk berkat nalar atau logika atau cara berpikir yang dimilikinya. Dari sini maka kajian terhadap khasanah intelektual masa lalu berpeluang bermakna dan bisa memberikan kontribusinya bagi dasar solusi permasalahan senada yang ada pada saat sekarang ini.
- Published
- 2016
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16. The Review Criticism Of Sadra`s Viewpoint in The refutation of contradiction of Sohrawardi`s speech in Mentally - Posited Matter
- Author
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Ali NazariAliabadi, Fathali akbari, and Sayyed Hashem Golestani
- Subjects
Principality ,Mentally posited ,Existence ,quiddity ,Sadra ,Sohrawardi ,Philosophy. Psychology. Religion - Abstract
Sohrawardi has a significant contribution in the theory of reality, as some of the basic principles of this theory have been droved from his viewpoint or have been the reflection of his thoughts. Different contrasting interpretations of Sohrawardi’s reality and reliability and not paying attention to his explicate have aroused extensive debates such as ,if Sohravardi cognizes existence as something credential and reliable , how would he consider human sensuality and its transcendent possessing a simple and nonidentity existence so that Mulla Sadra inevitably had to interprets his expressions to refute the contradictions. The main purpose of this paper is to review and analyze Mulla Sadra’s attributed contradictions to Sohrawardi in the matter of reliability of existence. This article is going to show: 1-The key to solve some of the ambiguities regarding the antecedents’ words is related to the terminology of expressions. 2-The authenticity and reliability matters are the progression of the matter of abundance of existence over substantiality. 3-Due to Sohrawardi`s explicit words, there is no contradiction in his speech, so it needs no interpretation.
- Published
- 2016
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17. The Relationship between Intellect and Particular Intellects in Plotinus' view and Its Comparison with MullÄ-SadrÄ's View on Unity and Multiplicity of Intellect
- Author
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Mohammad Reza Movahedi Najaf Abadi and Mohammad Hakkak
- Subjects
Mullā-Sadrā ,Plotinus ,Mullā ,One-Many ,Sadrā ,Intellect , particular intellects ,One ,Many ,Philosophy. Psychology. Religion - Abstract
Plotinus considers Demiurge as intellect and the Platonic ideas as its thoughts. At the same time, he does not regard the existence of these thoughts as dependent on the intellect's reflection, but each of them as an independent particular intellect, whose self-thinking requires all ideas to be thought, as if it is identical with the whole hypostasis of intellect. This theory, which is called "Internality Thesis", is one of the outstanding features of Plotinus' philosophy and one of the most problematic issues in Neo-platonic philosophies. This theory has been reflected in Theologia to some extent and is one of Mullā-Sadrā's resources to believe in the unity and multiplicity of intellect as the first emanated being. This paper, after discussing the Plotinus theory and its context, is going to studyMullā-Sadrā's view on the unity and multiplicity of intellect,and his being affected by Theologiaas well as by the verses and traditions.
- Published
- 2015
18. THE CONTRIBUTION OF CONDENSATION-CORROSION IN THE MORPHOLOGICAL EVOLUTION OF CAVES IN SEMI-ARID REGIONS: PRELIMINARY INVESTIGATIONS IN THE KYRENIA RANGE, CYPRUS.
- Author
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CAILHOL, Didier, Hai CHENG, EDWARDS, R. Lawrence, AUDRA, Philippe, NEHME, Carole, NADER, Fadi Henri, GARAŠIĆ, Mladen, HERESANU, Vasile, GUCEL, Salih, CHARALAMBIDOU, Iris, and SATTERFIELD, Lauren
- Subjects
- *
CONDENSATION , *MORPHOLOGY , *CAVES , *ARID regions , *MOUNTAINS - Abstract
The condensation-corrosion process occurs when airflow cools at the contact with colder cave walls. Condensed water becomes aggressive for soluble rocks and corrodes the walls. This process is particularly active close to cave entrances in high thermal gradient zones where external air enters caves. Condensation appears to be important where bat colonies are also present. Bat metabolism and guano decomposition release heat, vapour, and acids. Hence, bat colonies contribute to the increase of condensation- corrosion, especially by providing permanent moisture and chemical aggressiveness. Corrosive air convections produce rounded morphologies, such as ceiling channels, cupolas, and corroded older flowstones. This process has been overlooked in previous research, since related morphologies were often confused with those produced by early phreatic flow. Kyrenia Range in Cyprus has a semi-arid climate. All the studied caves developed along open-fractures. They are located both in recrystallized carbonates (limestone and dolostone, such as Smoky and Pigeons Caves), or in gypsum (First Day and Angry Bat Caves). We also studied a maze cave that acted as a spring in gypsum that initially developed under phreatic conditions, followed by an epiphreatic phase that allowed the development of notches (Fig Tree Cave, also named İncirli Show Cave). Due to the semi-arid climate, external air is very dry in summer, thus condensation seems to occur mainly in winter, when cave atmosphere instability allows large air exchanges between caves and surface atmosphere. In summer, evaporation prevails, allowing the development of popcorn lines in carbonate caves and massive gypsum crusts, stalagmites, and sidewalk rims in gypsum caves. However, the presence of a bat colony in a semi-confined chamber in Smoky Cave is probably the origin of the permanent moisture, also during the dry season, leading to a strong development of condensation-corrosion features such as ceiling cupolas, and possibly to the permanent activity of flowstones. In addition, we detected high concentrations of sulphur dioxide (SO2) and radon (Rn) in Fig Tree Cave, possibly related to the activity of the neighbouring overthrust. Based on the five studied caves in the Kyrenia Range and surroundings, the open-fracture caves in carbonates and gypsum have not undergone the typical initial phreatic stage, but have formed in a short time during Pleistocene as a result of the fast uplift of the range and were later reshaped by condensation-corrosion morphologies. Some gypsum caves may have formed entirely by this latter process, after initial minor fracture development. Cyprus is an outstanding area for studying the condensation-corrosion in caves, since a phreatic origin can be ruled out for most of the rounded morphologies. [ABSTRACT FROM AUTHOR]
- Published
- 2019
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19. KONSOLIDACE SÁDRY - TESTOVÁNÍ PROSTŘEDKŮ S ORGANICKÝMI ROZPOUŠTĚDLY.
- Author
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Zítková, Petra and Tišlová, Renata
- Abstract
Copyright of Fórum pro Konzervátory-Restaurátory is the property of Technical Museum in Brno and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2019
20. An Epistemological Review of the World of Ideas and Its Role in the Discovery of the Revelation and Dreams in Sadra’s Thought
- Author
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Alireza Heydarzadeh and Mahdi Rezazadeh Joudi
- Subjects
H1-99 ,Philosophy ,media_common.quotation_subject ,Subject (philosophy) ,Social Sciences ,faculty of imagination ,sadra ,Revelation ,Epistemology ,Power (social and political) ,Social sciences (General) ,world of ideas ,Intellect ,Dream ,Relation (history of concept) ,Soul ,revelation ,The Imaginary ,dream ,media_common - Abstract
In Sadra's thought, the philosophical elaboration of revelation and dreams is subject to the acceptance of the world of ideas. The question which has been responded in this paper is that how the issue of relation with the world of ideas and its role in discovering and reflecting the revelation and dreams is elaborated in Sadra’s thought? The research methodology was a descriptive-analytic one and the findings showed that in Sadra’s epistemological system, the world of ideas, is in agreement with the imaginary perception, so the connection to the world of ideas becomes possible through the imagination and abstraction power of this intellect. The results of the research indicate that from Sadra's point of view, the world of ideas and its visible forms have epistemological functions and the knowledge obtained from it is also superior and reassuring. In this paper, first in a general approach, the world of ideas and the role of the faculty of imagination in Sadra’s thought are put forth. Then, based on that and exclusively, Sadra’s thought on discovering the revelation and dream is elaborated and analyzed through the world of ideas and their reflections in soul.
- Published
- 2021
21. Ontology and Cosmology of the ʿaql in Ṣadrā's Commentary on Uṣūl al-Kāfī.
- Author
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Asghari, Seyed Amirhossein
- Subjects
- *
SUNNI Islam , *ONTOLOGY , *HADITH , *ISLAMIC philosophy ,UNIVERSE - Abstract
Mullā Ṣadrā's (c 1571-1640) commentary on Uṣūl al-Kāfī is one of the more famous commentaries on this significant Shi'i hadith collection. For his philosophical and Sufi background, Ṣadrā's approach to the hadith is slightly different and in some ways contrary to the earlier commentators such as'Allāma Majlisī in Shi'aand Ibn Taymīyya in Sunni Islam. This paper aims to shed light on the way Ṣadrā interprets al-Kāfī and particularly to determine his understanding of the ʿaql (intellect) at the cosmic (as first created-being) and human levels as presented in the Kitāb al-ʿAql wa al-Jahl (The Book of Intellect and Ignorance). Ṣadrā, already well-versed in the philosophical discourses on ontology and cosmology, finds al-Kāfī as a fertile ground to develop and extend his vision of cosmos and existence. This paper, furthermore, investigates and reviews some later and contemporary scholars' critiques of Ṣadrā's view on hadith and intellect. [ABSTRACT FROM AUTHOR]
- Published
- 2017
- Full Text
- View/download PDF
22. Rationality from Mulla Sadra's Viewpoint.
- Author
-
Mahmudkelayeh, Zahra, Akbarian, Reza, and Saeedimehr, Mohammad
- Subjects
- *
INTELLECT , *REASON , *ISLAMIC philosophy ,FAITH & reason in Islam - Abstract
Providing an exact explication of rationality in a way that would lead to the explication of the scope of rational discourse is among the most fundamental problems of philosophers. In the current essay the author struggles to reach a comprehensive definition of rationality via an exact description and analysis of ideas of Mulla Sadra (1571-1641) as the most significant philosophical figure in the Islamic world according to which one can present all human achievements in the domain of knowledge and science as manifestations of this rationality. Rationality in Sadra's intellectual system represents a comprehensive term with an analogically graded meaning that in different levels of certainty guarantees the validity of applied, theoretical and intuitive sciences. This comprehensive perspective of the domain of rational discourse can put an end to many disputes on the exact sense of rationality and in doing so, it can bring about a basis for more interaction and sympathy among scholars in various branches of science and open the path for deeper dialogue. [ABSTRACT FROM AUTHOR]
- Published
- 2017
23. A Criticism on Everlasting Torment in Hell and Mulla-Sadraâs Opinion and Itâs Comparison with Verses and Hadiths
- Author
-
Mohammadhosein Dehghani Mahmoodabadi and Mohammadreza balanian
- Subjects
Mulla ,Mulla-Sadra ,Sadra ,Quranic Verses ,Everlasting ,Torment in Hell ,Philosophy. Psychology. Religion ,Doctrinal Theology ,BT10-1480 - Abstract
The issue of “everlasting torment in Hell for some wrongdoers” is rooted in Quran and Hadith. Such a torment for sins which a human did during their short life is unreasonable and is against the Quranic verses which emphasis on vast remission of sins by Allah. It is also against the verses which assign the likelihood of everlasting torment to Allah’s providence and will. Mulla-Sadra tries to solve this controversy in his book called “Asfar va Al-Shavahed Al-Robubiya”. However dispite his novelistic interpretation, he is not able to solve it. He states in recent book “Arshiya” he states his last book that his final opinion matches with those verses which correspond with everlasting torment. However, his theory is not helpful to resolve the issue. Taking in an overall cosideratin of the corresponded verses and hadiths the current study attempts to solve the aforementioned controversy.
- Published
- 2010
24. KARST LANDFORMS WITHIN NOCTIS LABYRINTHUS, MARS.
- Author
-
BAIONI, Davide, TRAMONTANA, Mario, and ZUPAN HAJNA, Nadja
- Subjects
- *
KARST , *LANDFORMS , *MARTIAN geology , *GYPSUM , *MARTIAN volcanism , *WATER on Mars ,VALLES Marineris (Mars) - Abstract
Noctis Labyrinthus is an intricate system of Late Hesperian and Early Amazonian linear troughs and rounded pits connecting the Tharsis volcanic rise and western Valles Marineris next to Martian equator. This study was focused on three light-toned deposits (LTDs) located within a trough located in the western part of Noctis Labyrinthus, centered at -6.8°N, 261.1°E, approximately 60 x 50 km in dimension and with a depth of 5 km below the adjacent plateau. These LTDs located on the floor in the central region of this trough display spectral signature of gypsum and are characterised by the widespread presence of shallow depression morphologies. we performed a morphologic and morphometric analysis of the surfaces of these LTDs through an integrated study of images available through the Reconnaissance Mars Orbiter High-Resolution Imaging Science Experiment with the aim to describe, for the first time, these landforms, and to discuss their possible origins and lithological and paleo-climatic significance. Analysis, on the basis of the characteristics of the investigated landforms and the similarities of features on Earth and Mars, and after discarding other possible origins, revealed that the examined Martian landforms have karst origin. The landform features appear to reflect water-related processes, probably due to ice melting formed during periods of ice-snow-rich deposition from the atmosphere as the result of changes in the obliquity of Mars, which could have driven the processes of dissolution or collapse on the evaporite rock. Thus, the observed karst landforms suggest a climate change and the presence of liquid water due to ice melting during the Late Amazonian age. [ABSTRACT FROM AUTHOR]
- Published
- 2017
25. Restaurování části renesančního štukového epitafu rodiny Hodějovských z Hodějova v kostele Narození sv. Jana Křtitele v Českém Rudolci Možnosti čištění korozních produktů slitin železa z povrchu sádrových odlitků
- Author
-
Tišlová, Renata, Červinka, Josef, Šibravová, Kateřina, Tišlová, Renata, Červinka, Josef, and Šibravová, Kateřina
- Abstract
Diplomová práce je rozdělena na dvě hlavní části, praktickou a teoretickou. Praktická část prezentuje komplexní restaurátorský zásah na renesančním štukovém epitafu Jana Hodějovského z Hodějova a jeho rodiny umístěnému na severní zdi v kostele sv. Jana Křtitele v Českém Rudolci. Toto dílo bylo vytvořeno neznámým autorem roku 1582. Práce dokumentuje celý restaurátorský průzkum, na jehož základě byla zvolena koncepce restaurátorského zásahu. Dokument mapuje veškeré postupy a provedené zásahy během restaurátorského zásahu. Teoretická část se v úvodu zabývá seznámením se s materiály a problematikou koroze kovů. V úvodu je zaměřena na možnosti čištění korozních produktů ze sádrového povrchu. Pozornost byla zaměřena na shromáždění všech možných způsobů čištění za pomoci chemických látek, zatímco druhá, experimentální část, představuje zkoušky čištění ze zkušebních vzorků. Výsledky byly ověřeny na skutečném sádrovém díle se znečištěním korozními produkty., The diploma thesis is divided into two main parts, practical and theoretical. The practical part presents a comprehensive restoration intervention on the Renaissance stucco epitaph of Jan Hodějovský of Hodějov and his family located on the north wall in the Church of St. John the Baptist, Český Rudolec. This work was created by an unknown artist in 1582. The paper documents the entire restoration survey, which laid the basis for the restoration treatment concept. Besides, this part maps all the procedures and interventions performed during the restoration intervention. The theoretical part deals with the introduction to materials and corrosion of metals. The introduction focuses on the options of cleaning corrosion products from gypsum surfaces. The aim was to collect all possible cleaning methods with the help of chemicals. The second experimental part presents cleaning tests performed on plaster specimens; the data gained in the testing were verified on a real plaster artwork affected by corrosion of iron reinforcement, Fakulta restaurování, Studentka formou prezentace představila téma a náplň diplomové práce. Pohotově reagovala na dotazy komise, přičemž důsledně dodržovala smysl zadávaných otázek a odpovědi byly konkrétní a vyčerpávající. V případě praktické části dostatečně ozřejmila svůj podíl na restaurování artefaktu i ozřejmila použité metody, v rámci obhajoby teoretické části bylo ozřejmění zadání logické a otázky byly zodpovězeny přiměřeně., Dokončená práce s úspěšnou obhajobou
- Published
- 2021
26. EVALUATION OF THE RISK ASSOCIATED WITH KARSTIC PROCESSES IN MIOGENE GYPSUM IN SOUTH-EASTERN MADRID (SPAIN).
- Author
-
ESCOLANO SÁNCHEZ, Félix, MAZARIEGOS DE LA SERNA, Alberto, and MARÍA DEL CAMPO YAGÜE, José
- Subjects
- *
MIOCENE Epoch , *MIOCENE paleoecology , *URBANIZATION , *GEOMORPHOLOGICAL mapping , *AERIAL photographs , *RISK assessment - Abstract
Relief formations characteristic of karstification processes affecting the Miocene gypsum formations existing in south-eastern Madrid have been discovered in that area of the city. These relief formations can pose significant risks tofuture urban development plans. The purpose of this article is to present an integrated model created from a geomorphological analysis of south-eastern Madrid through aerial photographs, geophysical inspections (microgravimetry) and geotechnical studies (in situ drilling and testing), in order to identify and measure the morphologies associated with karstic processes whose locations, dimensions and geotechnical characteristics are prone to causing damages that could pose a potential risk. The risk analysis is based on a study of the risk factors, focusing on vulnerability and the measurement of structural mitigation measures capable of preventing the damages that could be caused by the interaction between structural foundations and the morphological consequences of karstic processes on the soil. [ABSTRACT FROM AUTHOR]
- Published
- 2015
27. Concept of Ultimate Reality in Philosophy of Mullā Sadrā and Upaniṣads: A Comparative Study
- Author
-
Kohandel, Hossein
- Published
- 2019
- Full Text
- View/download PDF
28. Poskusi zmanjševanja emisije amonijaka iz živinskih gnojil s pomočjo sadre
- Author
-
Pucer, Ana and Mihelič, Rok
- Subjects
dušik ,fertilizers ,gnojila ,nitrogen losses ,sadra ,amonijak ,gypsum ,nitrogen ,ammonium ,žveplova kislina ,izguba dušika ,organska gnojila ,gnojevka ,apnenec ,udc:631.86:549.766.21:631.416/.417(043.2) ,organic fertilizers ,slurry ,limestone - Published
- 2020
29. Vpliv pranja tal z EDTA ter anorganskih in organskih dodatkov na izbrane fizikalne lastnosti tal
- Author
-
Witwicky, Vesna and Grčman, Helena
- Subjects
bulk density ,soil porosity ,udc:631.41/.43:502.174(043.2) ,vodnozadrževalne lastnosti tal ,gostota tal ,ligand ,šota ,soil physics ,test plant ,hidravlična prevodnost nasičenih tal ,pedologija ,fizika tal ,poroznost tal ,testna rastlina ,tla ,pranje tal ,saturated hydraulic conductivity ,EDTA ,onesnažena tal ,ligandi ,bela detelja ,soil remediation ,sadra ,soil water retenstion characteristics ,agrogel ,gypsum ,hlevski gnoj ,remediacija tal ,organic additives ,Trifolium repens L ,manure ,peat ,white clover ,hydrogel ,norganic additives - Published
- 2020
30. A Review of the Opposition of Unity and Diversity in Sadra's Theory of Gradation
- Subjects
lcsh:Philosophy of religion. Psychology of religion. Religion in relation to other subjects ,Sadra ,Unity ,opposition ,lcsh:BL51-65 ,gradation ,diversity - Abstract
The discussion regarding "Unity and Diversity" is one of the most important philosophical issues. An explanation regarding the manner of relation between one and many is one of the issues which is a point of difference in the opinions of the philosophers; from among the philosophers, Sadra, while rejecting all four types of opposition (contradiction, privation and possession, contrast, mutual correlation) and based on his own foundations in transcendental philosophy, addresses the theory of gradational opposition; but since he still speaks of the opposition of unity and diversity in some of his works, an important question arises here which is that if unity and diversity are two opposing concepts, how is this issue true in view of his theory regarding gradational unity? And is this opposition, essential or secondary? In answer to this question, as will be addressed in this article, Sadra in some of his works, in contrast to the views of other philosophers and while considering the opposition between the two to be essential, believes it to be a fifth type of opposition in which the difference between unity and diversity is not in the exclusion of the essential characteristics of one another but rather is in the extent of difference of completeness and deficiency.
- Published
- 2018
31. Výběr vhodné metody pro čištění děl ze sádry
- Author
-
Mrověc, Pavel, Ďoubal, Jakub, Mrověc, Pavel, and Ďoubal, Jakub
- Abstract
Památkový postup shrnuje dosavadní znalosti v tomto oboru a předkládá současné možnosti čištění, jejich výhody a nevýhody. V praxi je většinou čištění výsledkem kombinace různých metod, a proto se tento památkový postup nesoustředí na jednu konkrétní metodu čištění, ale spíše na způsob výběru a ověřování vhodné metody pro konkrétní památkový objekt. Cílem je popsat optimální postup při charakterizaci znečištění a substrátu, stanovit kritéria pro volbu vhodné metody, respektive koncepce restaurování, a postupy pro následné ověřování uvažovaných metod čištění., The conservation procedure summarizes recent art knowledge and presents the current possibilities of cleaning, their advantages and disadvantages. In practice, most of the cleaning is the result of a combination of different methods, and therefore this conservation procedure does not focus on one particular cleaning method, but rather on how to select and verify the appropriate method for a particular monument. The aim is to describe the optimal procedure for the characterization of the contamination and the substrate, to determine the criteria for the choice of a suitable method or concept of restoration, and the procedures for subsequent verification of the considered cleaning methods.
- Published
- 2020
32. Lepení sádrových odlitků
- Author
-
Zítková, Petra, Ďoubal, Jakub, Tišlová, Renata, Kokstejnová, Aneta, Zítková, Petra, Ďoubal, Jakub, Tišlová, Renata, and Kokstejnová, Aneta
- Abstract
Cílem památkového postupu bylo vytvořit studii, která se nejprve zaměřila na hodnocení materiálů (tradičně užívaných i moderních) podle kritérií odpovídajících požadavkům pro současné restaurátorské postupy. Ze získaných informací a poznatků studie postup následně doporučuje použití vhodného adhezního materiálu a dále představuje několik možností řešení postupů při lepení v závislosti na poškození děl, které zastupují nejčastěji řešené situace v rámci restaurování sádrových odlitků. Metody a postupy demonstruje na vybraných památkových objektech ze sádry pocházejících ze sbírky sádrových odlitků Stanislava Suchardy, u nichž byly využity a ověřeny v rámci jejich restaurování., The aim of the conservation procedure was to create a study which first focused on the evaluation of materials (traditionally used and modern) according to criteria corresponding to the requirements for contemporary conservation procedures. Based on the information and findings of the study, the procedure subsequently recommends the use of a suitable adhesive material and further presents several possibilities of solving the gluing procedures depending on the damage of the works representing the most frequently solved situations in the restoration of plaster casts. The methods and procedures are demonstrated on selected objects made of plaster from the collection of plaster casts by Stanislav Sucharda, where they were used and verified during their restoration.
- Published
- 2020
33. Konsolidace sádry – testování prostředků s organickými rozpouštědly
- Author
-
Zítková, Petra, Tišlová, Renata, Zítková, Petra, and Tišlová, Renata
- Abstract
Příspěvek se koncentruje na problematiku konsolidace sádrových odlitků. Na základě publikovaných informací se snaží zachytit stávající stav a nedávnou tradici v této oblasti restaurování. Podrobným průzkumem domácí i zahraniční literatury shromažďuje poznatky o historických i novodobých materiálech a postupech používaných pro zpevnění. Nově jsou prezentovány zkušenosti autorů i studie, v jejímž rámci došlo k odzkoušení vybraných konsolidačních prostředků, jejichž výběr vzešel částečně ze současné praxe a z relevantní literatury, která se obecně zaobírá konsolidací anorganických porézních materiálů. Z důvodu možného negativního účinku vody byl výběr konsolidantů omezen na prostředky s organickými rozpouštědly. Diskutován je konsolidační účinek bílého šelaku, akrylátové pryskyřice Paraloid B72, do testování byly dále zahrnuty estery kyseliny křemičité, vykazující obecně dobré zpevňující účinky na jiné porézní materiály. V neposlední řadě byly do testování zařazeny nové formy tradičních materiálů v podobě vápenné a sádrové nanosuspenze. Výzkum poukazuje na pozitivní i negativní vlastnosti jednotlivých konsolidantů a nastiňuje možné využití výsledků v praxi., The paper focus on the problem of consolidation of plaster casts. On the basis of published information it tries to transcribe the current state and recent tradition in this area of restoration. A detailed survey of domestic and foreign literature gathers knowledge of historical and modern materials and procedures used for strengthening. The authors' experience as well as the study in which selected consolidation means have been tested, the selection of which has been partly based on current practice and relevant literature, which generally deals with the consolidation of inorganic porous materials, are newly presented. Because of the possible negative effect of water, the choice of consolidants was limited to compositions with organic solvents. The consolidation effect of white shellac, Paraloid B72 acrylate resin, is discussed, and silicic acid esters showing generally good strengthening effects on other porous materials have been included. Last but not least, new forms of traditional materials in the form of lime and gypsum nanosuspension were included in the testing. The research points to positive and negative properties of individual consolidants and outlines the possible use of results in practice.
- Published
- 2020
34. Čištění povrchově neupravené sádry laserem
- Author
-
Ďoubal, Jakub, Lesniaková, Petra, Mrověc, Pavel, Ďoubal, Jakub, Lesniaková, Petra, and Mrověc, Pavel
- Abstract
Příspěvek se zaměřuje na problematiku čištění povrchově neupravených sádrových odlitků laserem. V teoretické rovině zde jsou kompilovány výhody i možné nedostatky odstraňování nečistot pomocí laserů. Článek představuje publikované předpoklady i zkušenosti z praxe související s negativní změnou povrchu materiálů čištěných laserem a zejména výsledky experimentálních zkoušek čištění provedených na uměle znečištěné sádře. V rámci experimentu byly připravené sádrové pláty pokryty vrstvami černých pigmentů, železité, sazové a uhlové černi, které svými vlastnostmi vhodně imitovaly prachové depozity. K čištění byly použity dva Ng:yAG lasery, eOS 1000 SRF a Qs laser Thunder Art, při různých podmínkách nastavení, zahrnujících rozdílné vlnové délky a různé energetické hustoty. Vyhodnocení bylo provedeno vizuálně a mikroskopicky – stereoskopickou, optickou a skenovací elektronovou mikroskopií s prvkovou mikroanalýzou. Na základě provedených testů a průzkumů byly zjištěny podmínky vhodného použití a nastavení laserů k čištění reálných sádrových objektů. Zároveň výzkum poukázal na nežádoucí změny, které mohou po laserové ablaci povrchu sádry nastat., The article summarizes the current knowledge and possibilities of laser cleaning of plaster casts. Advantages and possible drawbacks of removing impurities by lasers are listed on the theoretical level here. The paper presents the published assumptions and experience from the practice related to the negative change of the laser-treated material surfaces, and in particular the results of the experimental cleaning tests carried out on artificially contaminated plaster. It is particularly focused on the laser cleaning of non-treated gypsum plaster covered with deposits. This experimental study deals with the effects of laser cleaning on the gypsum plaster plates covered with artificial dirt which was simulated by carbon and iron black pigments. Within the experiment, two Nd:yAG lasers, an eOS 1000 SFR and a Qs laser Thunder Art were used in various operating conditions. The changes after laser irradiation were evaluated by visual observation and by stereoscopic, optical and electron microscopy with energy-dispersive microanalyses (SeM-eDX). Based on the cleaning tests it was possible to set suitable conditions for laser cleaning on real plaster items. Presented research also points out undesirable effects that may occur after laser ablation of gypsum plaster surfaces.
- Published
- 2019
35. Gypsum consolidation - testing of agents with organic solvents
- Author
-
Zítková, Petra and Tišlová, Renata
- Subjects
konsolidace ,sádra ,organická rozpouštědla ,sádrové odlitky ,plaster casts ,consolidation ,gypsum ,organic solvets - Abstract
Příspěvek se koncentruje na problematiku konsolidace sádrových odlitků. Na základě publikovaných informací se snaží zachytit stávající stav a nedávnou tradici v této oblasti restaurování. Podrobným průzkumem domácí i zahraniční literatury shromažďuje poznatky o historických i novodobých materiálech a postupech používaných pro zpevnění. Nově jsou prezentovány zkušenosti autorů i studie, v jejímž rámci došlo k odzkoušení vybraných konsolidačních prostředků, jejichž výběr vzešel částečně ze současné praxe a z relevantní literatury, která se obecně zaobírá konsolidací anorganických porézních materiálů. Z důvodu možného negativního účinku vody byl výběr konsolidantů omezen na prostředky s organickými rozpouštědly. Diskutován je konsolidační účinek bílého šelaku, akrylátové pryskyřice Paraloid B72, do testování byly dále zahrnuty estery kyseliny křemičité, vykazující obecně dobré zpevňující účinky na jiné porézní materiály. V neposlední řadě byly do testování zařazeny nové formy tradičních materiálů v podobě vápenné a sádrové nanosuspenze. Výzkum poukazuje na pozitivní i negativní vlastnosti jednotlivých konsolidantů a nastiňuje možné využití výsledků v praxi. The paper focus on the problem of consolidation of plaster casts. On the basis of published information it tries to transcribe the current state and recent tradition in this area of restoration. A detailed survey of domestic and foreign literature gathers knowledge of historical and modern materials and procedures used for strengthening. The authors' experience as well as the study in which selected consolidation means have been tested, the selection of which has been partly based on current practice and relevant literature, which generally deals with the consolidation of inorganic porous materials, are newly presented. Because of the possible negative effect of water, the choice of consolidants was limited to compositions with organic solvents. The consolidation effect of white shellac, Paraloid B72 acrylate resin, is discussed, and silicic acid esters showing generally good strengthening effects on other porous materials have been included. Last but not least, new forms of traditional materials in the form of lime and gypsum nanosuspension were included in the testing. The research points to positive and negative properties of individual consolidants and outlines the possible use of results in practice.
- Published
- 2019
36. Vliv přídavku sadry na některé vybrané vlastnosti vápenno-metakaolinových malt
- Author
-
Jana Majerová and Rostislav Drochytka
- Subjects
metakaolin ,Gypsum ,Materials science ,ettringit ,Metallurgy ,Historická omítka ,0211 other engineering and technologies ,020101 civil engineering ,vápno ,02 engineering and technology ,engineering.material ,sadra ,gypsum ,0201 civil engineering ,021105 building & construction ,engineering ,Historic mortar ,lime ,Mortar ,Metakaolin ,Lime ,ettringite - Abstract
The renovation and replacement of historical plasters is still a very current topic. Today’s trend is for the production of dry mortar mixtures that can be used for the renovation of historic buildings. The article therefore focuses on the preparation of gypsum-modified lime-metakaolin mortar. An experiment consisted of two stages. In the first stage of the experiment, the basic technological properties of fresh and hardened mortars were examined (bulk density of fresh and hardener mortar, compressive and flexural strength). The second stage aimed at monitoring the hydration process in different environments. Environments should simulate real factors affecting the plaster (humidity, low and higher temperatures). To determinate of the phase composition, the X-ray diffraction analysis was used. The results showed that gypsum in the lime-metakaolin plaster caused an increase in compressive and flexural strength. The presence of gypsum also conduced to the formation of ettringite and this has caused volumetric changes. Renovace a obnova historických omítek je stále velmi aktuální téma. Dnešní trendem je výroba suchých maltových směsí, které lze použít k renovaci historických budov. Článek se proto zabývá přípravou vápenno-metakaolinové malty modifikované sádrou. Experiment se skládal ze dvou fází. V první fázi experimentu byly zkoumány základní technologické vlastnosti čerstvých a zatvrdlých malt (objemová hmotnost čerstvé a zatvrdlé malty, pevnost v tlaku a ohybu). Druhá fáze je zaměřena na zkoumání hydratačního procesu v různých prostředích. Prostředí by měly simulovat skutečné faktory ovlivňující omítku (vlhkost, nízké a vyšší teploty). Na stanovení fázového složení, byla použita rentgenová difrakční analýza. Výsledky ukázaly, že přídavek sádry v omítce způsobila nárůst pevnosti v tlaku a v ohybu. Přítomnost sádry také vedla k tvorbě ettringitu, který může vést k objemovým změnám.
- Published
- 2018
37. The influence of the addition of gypsum on some selected properties of lime-metakaolin mortars
- Author
-
Majerová, Jana, Drochytka, Rostislav, Majerová, Jana, and Drochytka, Rostislav
- Abstract
The renovation and replacement of historical plasters is still a very current topic. Today’s trend is for the production of dry mortar mixtures that can be used for the renovation of historic buildings. The article therefore focuses on the preparation of gypsum-modified lime-metakaolin mortar. An experiment consisted of two stages. In the first stage of the experiment, the basic technological properties of fresh and hardened mortars were examined (bulk density of fresh and hardener mortar, compressive and flexural strength). The second stage aimed at monitoring the hydration process in different environments. Environments should simulate real factors affecting the plaster (humidity, low and higher temperatures). To determinate of the phase composition, the X-ray diffraction analysis was used. The results showed that gypsum in the lime-metakaolin plaster caused an increase in compressive and flexural strength. The presence of gypsum also conduced to the formation of ettringite and this has caused volumetric changes., Renovace a obnova historických omítek je stále velmi aktuální téma. Dnešní trendem je výroba suchých maltových směsí, které lze použít k renovaci historických budov. Článek se proto zabývá přípravou vápenno-metakaolinové malty modifikované sádrou. Experiment se skládal ze dvou fází. V první fázi experimentu byly zkoumány základní technologické vlastnosti čerstvých a zatvrdlých malt (objemová hmotnost čerstvé a zatvrdlé malty, pevnost v tlaku a ohybu). Druhá fáze je zaměřena na zkoumání hydratačního procesu v různých prostředích. Prostředí by měly simulovat skutečné faktory ovlivňující omítku (vlhkost, nízké a vyšší teploty). Na stanovení fázového složení, byla použita rentgenová difrakční analýza. Výsledky ukázaly, že přídavek sádry v omítce způsobila nárůst pevnosti v tlaku a v ohybu. Přítomnost sádry také vedla k tvorbě ettringitu, který může vést k objemovým změnám.
- Published
- 2018
38. The influence of the addition of gypsum on some selected properties of lime-metakaolin mortars
- Abstract
The renovation and replacement of historical plasters is still a very current topic. Today’s trend is for the production of dry mortar mixtures that can be used for the renovation of historic buildings. The article therefore focuses on the preparation of gypsum-modified lime-metakaolin mortar. An experiment consisted of two stages. In the first stage of the experiment, the basic technological properties of fresh and hardened mortars were examined (bulk density of fresh and hardener mortar, compressive and flexural strength). The second stage aimed at monitoring the hydration process in different environments. Environments should simulate real factors affecting the plaster (humidity, low and higher temperatures). To determinate of the phase composition, the X-ray diffraction analysis was used. The results showed that gypsum in the lime-metakaolin plaster caused an increase in compressive and flexural strength. The presence of gypsum also conduced to the formation of ettringite and this has caused volumetric changes., Renovace a obnova historických omítek je stále velmi aktuální téma. Dnešní trendem je výroba suchých maltových směsí, které lze použít k renovaci historických budov. Článek se proto zabývá přípravou vápenno-metakaolinové malty modifikované sádrou. Experiment se skládal ze dvou fází. V první fázi experimentu byly zkoumány základní technologické vlastnosti čerstvých a zatvrdlých malt (objemová hmotnost čerstvé a zatvrdlé malty, pevnost v tlaku a ohybu). Druhá fáze je zaměřena na zkoumání hydratačního procesu v různých prostředích. Prostředí by měly simulovat skutečné faktory ovlivňující omítku (vlhkost, nízké a vyšší teploty). Na stanovení fázového složení, byla použita rentgenová difrakční analýza. Výsledky ukázaly, že přídavek sádry v omítce způsobila nárůst pevnosti v tlaku a v ohybu. Přítomnost sádry také vedla k tvorbě ettringitu, který může vést k objemovým změnám.
- Published
- 2018
39. The influence of the addition of gypsum on some selected properties of lime-metakaolin mortars
- Abstract
The renovation and replacement of historical plasters is still a very current topic. Today’s trend is for the production of dry mortar mixtures that can be used for the renovation of historic buildings. The article therefore focuses on the preparation of gypsum-modified lime-metakaolin mortar. An experiment consisted of two stages. In the first stage of the experiment, the basic technological properties of fresh and hardened mortars were examined (bulk density of fresh and hardener mortar, compressive and flexural strength). The second stage aimed at monitoring the hydration process in different environments. Environments should simulate real factors affecting the plaster (humidity, low and higher temperatures). To determinate of the phase composition, the X-ray diffraction analysis was used. The results showed that gypsum in the lime-metakaolin plaster caused an increase in compressive and flexural strength. The presence of gypsum also conduced to the formation of ettringite and this has caused volumetric changes., Renovace a obnova historických omítek je stále velmi aktuální téma. Dnešní trendem je výroba suchých maltových směsí, které lze použít k renovaci historických budov. Článek se proto zabývá přípravou vápenno-metakaolinové malty modifikované sádrou. Experiment se skládal ze dvou fází. V první fázi experimentu byly zkoumány základní technologické vlastnosti čerstvých a zatvrdlých malt (objemová hmotnost čerstvé a zatvrdlé malty, pevnost v tlaku a ohybu). Druhá fáze je zaměřena na zkoumání hydratačního procesu v různých prostředích. Prostředí by měly simulovat skutečné faktory ovlivňující omítku (vlhkost, nízké a vyšší teploty). Na stanovení fázového složení, byla použita rentgenová difrakční analýza. Výsledky ukázaly, že přídavek sádry v omítce způsobila nárůst pevnosti v tlaku a v ohybu. Přítomnost sádry také vedla k tvorbě ettringitu, který může vést k objemovým změnám.
- Published
- 2018
40. Restaurování reliéfu 'Libuše věštící slávu Prahy' od Stanislava Suchardy Restaurování reliéfu sv. Barbory na morovém sloupu v Kutné Hoře
- Author
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Ďoubal, Jakub, Kulhánek, Martin, Teturová, Klára, Ďoubal, Jakub, Kulhánek, Martin, and Teturová, Klára
- Abstract
Tato bakalářská práce je rozdělena do dvou částí, jedná se o část praktickou a teoretickou. Praktická část je rozdělena na dvě části. První část práce zahrnuje komplexní restaurátorský zásah na reliéfu sv. Barbory z kutnohorského vápence na Morovém Sloupu v Kutné hoře. Druhá části práce se také zabývá komplexním restaurátorským zásahem na sádrovém reliéfu "Libuše věštící slávu Prahy". V obou případech se jedná o samostatné řešení restaurátorského úkolu v plném rozsahu od zpracování důkladných restaurátorských průzkumů, přes stanovení koncepce restaurování až po vlastní restaurování a zpracování závěrečných dokumentací. Teoretická práce je rozšířený průzkum zaměřený na tmelící směsi pro doplňování sádrových odlitků., This bachelor thesis is divided into two parts, a practical and theoretical. The practical part is divided into two parts, too. The first part includes a complex restoration work on the relief of St. Barbora made trom Kutná Hora´s limestone which is placed on Morové Sloup in Kutná Hora. The second part also deals with a complex restoration of the gypsum relief "Libuše, predicting the glory of Prague". In both cases, I solved the restoration tasks by from the elaboration of restoration surveys, the definition of the restoration concept to restoration itself and the complementation of the final documentation. The theoretical is gives an expanded survey focused on cementing mixtures for filling gypsum castings., Fakulta restaurování, Studentka představila svoji práci, při prezentaci se pokusila reagovat na některé připomínky, obsažené v posudcích, nicméně hlavní připomínky oponenta a vedoucího práce zůstaly bez přesvědčivého obhájení. S přihlédnutím k relativně kvalitně provedenému restaurárostkému zásahu, který byl součástí bakalářské práce, navrhujeme proto hodnocení E.
- Published
- 2018
41. THERMOGRAVIMETRIC ANALYSIS OF GYPSUM FROM POWER PLANT ŠOŠTANJ
- Author
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Rebić, Vesna and Goršek, Andreja
- Subjects
thermogravimetric analysis ,vsebnost kalcijevega karbonata ,čistota sadre ,calcium carbonate content ,degree of gypsum ,udc:543.573:549.766.21043.2) ,sadra ,desulphurization ,razžvepljevanje ,gypsum ,termogravimetrična analiza - Abstract
Diplomsko delo je osredotočeno na vzpostavitev metode za termogravimetrično analizo sadre in ovrednotenje rezultatov meritev. Termogravimetrična analiza je avtomatska metoda, s katero določamo stopnjo čistote sadre, tj. delež kalcijevega sulfata dihidrata in vsebnost kalcijevega karbonata. Z uporabo te metode lahko, v primerjavi s klasično gravimetrično metodo, zmanjšamo vpliv pogojev prostora in okolja ter človeškega faktorja, hkrati do rezultatov pridemo v bistveno krajšem času. Poleg pristopa k vzpostavitvi instrumentalne metode za uporabo v laboratoriju, diplomsko delo prikazuje tudi izvedbo verifikacije te metode in ovrednotenje merilne negotovosti rezultata. Na podlagi meritev realnih vzorcev in reagentov znane čistote smo določili merilno območje metode in medsebojno primerljivost rezultatov. Ugotovili smo, da so rezultati meritev s termogravimetrično metodo primerljivi z rezultati gravimetrične metode. Prav tako se je izkazalo, da se z uporabo instrumentalne metode skrajša čas trajanja analize, saj določanje stopnje čistote sadre in vsebnosti kalcijevega karbonata poteka zaporedno znotraj enega instrumentalnega postopka, medtem ko je z gravimetrično metodo te analize potrebno izvesti v več posameznih korakih. The thesis is focused on the establishment of a method for the thermogravimetric analysis of gypsum and evaluation of the measurement results. Thermogravimetric analysis is an automatic method for determination of a degree of purity, ie. the proportion of calcium sulphate dihydrate and also calcium carbonate content. By using this method we can reduce the impact of accommodation and environmental conditions as well as the human factors, while we get the results in much shorter time, comparing to a conventional gravimetric method. In addition of approach to establish the instrumental method for use in a laboratory, the study also shows the verification of the method and evaluation of measurement uncertainty. Based on the analyses of the real samples and reagents of known purity, the range of testing and comparison with the results achieved with the other methods were determined. We have found out that the results of measurements with thermogravimetric method are comparable with the results determined by gravimetric method. It also turned out that the use of the instrumental method indicates shorter duration of determining the degree of purity of the gypsum and the calcium carbonate content, because the instrumental analyses of the samples occur simultaneously in a single instrument procedure, while the gravimetric method must be carried out in several individual steps.
- Published
- 2016
42. Restaurování sádrového modelu pomníku Jana Husa na Staroměstské náměstí od Stanislava Suchardy; Možnosti využití laseru v kontextu tradičních a současných metod čištění povrchově neupravených sádrových odlitků
- Author
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Ďoubal, Jakub, Mrověc, Pavel, Ďoubal, Jakub, and Mrověc, Pavel
- Abstract
Praktická část diplomové práce se zabývala komplexním restaurování sádrové plastiky modelu pomníku Jana Husa na Staroměstské náměstí od sochaře Stanislava Suchardy. Zpráva obsahuje textovou část, fotografickou část dokumentující restaurování obrazově, grafickou část i přílohy z laboratorní analýzy. Teoretická část se zabývá průzkumem a vyhodnocením možnosti čištění povrchově neupravené sádry laserem. Rešerše daného tématu shrnuje současné poznatky a možnosti čištění sádry, experimentální část dokumentovala na vytvořených vzorcích účinky čištění laserem a případová studie se zaměřuje na aplikaci poznatků na konkrétní sádrová díla., The practical part of the diploma thesis deals with the complex restoration of plaster model of Jan Hus monument for the Old Town Square by the sculptor Stanislav Sucharda. The restoration report contains a text part, a photographic part documenting the restoration with pictures, graphical part and the annexes from the laboratory analysis. The theoretical part deals with the research and evaluation of the possibility of cleaning untreated plaster surfaces with laser. The research of the topic summarizes the current knowledge and possibilities of plaster cleaning, the experimental part documented the effects of laser cleaning on the created artificial samples and the case study focuses on the application of knowledge on particular plaster casts., Fakulta restaurování, Obhajoba byla dobře strukturovaná a na dopňující dotazy reagoval student s velkým přehledem.
- Published
- 2017
43. Restaurování objektů od Stanislava Suchardy sádrové plastiky Karla IV. a plastiky z pálené hlíny. Testování adheziv pro lepení sádrových artefaktů.
- Author
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Ďoubal, Jakub, Kokstejnová, Aneta, Ďoubal, Jakub, and Kokstejnová, Aneta
- Abstract
Diplomová práce je rozdělena do dvou bloků. Praktická část diplomové práce se zabývá restaurováním sádrové plastiky Karla IV. a plastiky z pálené hlíny z depozitáře Vily Stanislava Suchardy v Praze. Jedná se o samostatné řešení restaurátorského úkolu v plném rozsahu, od zpracování návrhu na restaurování přes důkladný restaurátorský průzkum až po vlastní restaurování a zpracování restaurátorské dokumentace. Teoretická část je zaměřena na rozšířené experimentální testování vybraných adheziv pro lepení historických sádrových artefaktů. Na základě této práce proběhly zkoušky vybraných technologických postupů, které byly aplikovány v rámci restaurování sádrové plastiky Karla IV. Teoretická část diplomové práce vychází a rozšiřuje poznatky získané z teoretické části předchozí bakalářské práce a je doplněna o anorganickou škálu adheziv., The thesis is devided into two blocks. The practical part is aimed up to restoration of plaster sculpture of Charles IV and burnt clay sculptures by Stanislav Sucharda's villa. In detail there is a restorational problem in its complete form creating a design of restoration, complex restorational survey and restoration work and creating an restoration documentation. Theoretical part is showing a complex experimental testing of particular adhesives for bonding gypsum artifacts. The testing of particular technological methods which was applied to restoration of plaster sculpture of Charles IV was based on this work. The theoretical part of thesis completes collected knowledge from theoretical part of my Bachelor thesis. The work is completed with an anorganical collection of adhezives., Fakulta restaurování, Obhajoba byla dobře strukturovaná a na dopňující dotazy reagovala studentka s přehledem.
- Published
- 2017
44. Mehanička svojstva ortopedskih gipseva
- Author
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Crnčević, Luka and Haramina, Tatjana
- Subjects
sadra ,gypsum ,modul elastičnosti ,exothermic reaction ,Gips ,egzotermna reakcija ,savojna čvrstoća ,flexural strength ,TEHNIČKE ZNANOSTI. Strojarstvo ,plaster cast ,TECHNICAL SCIENCES. Mechanical Engineering ,orthopedic ,flexural modulus - Abstract
Gipsani zavoji često se koriste za imobilizaciju dijelova tijela. Prilikom njihovog namakanja u vodi dolazi do egzotermne reakcije pri kojoj se oslobađa toplina koja može dovesti do nastanka opekotina na koži. Nakon omatanja zavoja i namakanja vodom nastaje slojeviti kompozit kojemu je matrica medicinski gips, a ojačalo pamučna mrežasta gaza. U ovom radu su ispitana mehanička svojstva gipsanih zavoja od tri različita proizvođača: Safix plus (Hartman, Njemačka), Cellona (Lohman Rauscher, Austria) i Gipsan (Ivo Lola Ribar d.o.o., Hrvatska). Zavoji su načinjeni od 10 i 15 slojeva pri različitim temperaturama sadrenja. Ispitivanjem na savijanje određen je savojni modul elastičnosti i savojna čvrstoća. Također je ispitana promjena temperature sadrenja tijekom očvršćivanja gipsanog zavoja. Nakon provedenih ispitivanja i obrade rezultata doneseni su zaključci o utjecaju temperature sadrenja i debljine slojeva na mehanička svojstva gipsanih zavoja od triju različitih proizvođača. Orthopedic plaster casts are often used to immobilize some parts of the human body. While they are soaked in water, an exothermic reaction occurs and heat is released that can cause skin burns. After wrapping and soaking the plaster, a new layerd composite is made whose matrix is medical plaster and its reinforcement is mesh gauze made of cotton. In this thesis, mechanical properties of orthopedic plaster casts are tested from three different manufacturers: Safix plus (Hartman, Germany), Cellona (Lohman Rauscher, Austria) and Gipsan (Ivo Lola Ribar d.o.o., Croatia). Plasters are made of 10 and 15 layers at different temperatures of casting. By performing a bending test, the flexural modulus and the flexural strength are determined. Also, the temperature change of casting is tested during the curing of orthopedic plaster casts. After performing the tests and processing the results, conclusions about the effect of temperature of casting and thickness of layers on mechanical properties of orthopedic plaster casts from three different manufacturers have been made.
- Published
- 2016
45. Restaurování sádrové plastiky Havíře ze sbírek Českého muzea stříbra v Kutné Hoře; Možnosti konsolidace sádry a fixace barevných vrstev na sádrovém podkladu
- Author
-
Ďoubal, Jakub, Wichterlová, Zuzana, Zítková, Petra, Ďoubal, Jakub, Wichterlová, Zuzana, and Zítková, Petra
- Abstract
Diplomová práce obsahuje praktickou a teoretickou část. Praktická část prezentuje komplexní restaurátorský zásah na sádrové plastice Havíře ze sbírek Českého muzea stříbra v Kutné Hoře. Tato část je vypracována jako restaurátorská zpráva obsahující popis památky, její stav, podrobný průzkum, koncepci restaurování a samotný zásah doprovázený fotografickou a grafickou dokumentací. Teoretická část je rozdělena na dva celky. V teoretické rovině je formou studie literatury a pramenů předložena problematika degradace sádry a především možnosti konsolidace sádry a fixace barevné vrstvy na jejím povrchu. Druhá část je založena na experimentálním testování vybraných prostředků pro konsolidaci sádry a fixaci barevné vrstvy. Na základě této studie byly vybrány prostředky pro aplikaci na restaurovaném objektu., This thesis consists of two parts, theoretical and a practical one. The practical part presents complex restoration treatment on a plaster cast depicting a miner. The cast was provided by the Czech Museum of Silver in Kutná Hora. The practical part is written as a restoration report containing description of the cast, its condition, detailed restoration research, conception, and the treatment itself with photographical and graphical documentation. The theoretical part is divided into two parts. The first part deals with the issue of the plaster degradation with knowledge based on specialized literature. The first part is especially focused specially on plaster consolidation and a possible fixation of a paint layer on its surface. The second part is based on an experimental testing of selected materials used for plaster consolidation and paint layer fixation. The choice of materials used on the restoration is based on the outcome of the experimental study., Fakulta restaurování
- Published
- 2016
46. The use of white gypsum with apple trees cultivars 'Gala' and 'Braeburn'
- Author
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Brglez Sever, Marinka and TOJNKO, Stanislav
- Subjects
kalcij ,calcium ,quality ,tla ,sulfur ,apno ,kakovost ,lime ,sadra ,gypsum ,žveplo ,soil - Abstract
Na posestvu Fakultete za kmetijstvo in biosistemske vede, UKC Pohorski dvor, smo v letu 2007 raziskovali vpliv uporabe različnih kalcijevih gnojil (sadre in apna) ter različnih odmerkov sadre na lastnosti tal, vsebnost kalcija v listih, mineralno sestavo plodov, pomološke parametre jablan ter zrelostne in kakovostne parametre pridelka. Poskus je vključeval sorti 'Gala' in 'Braeburn'. Pri sorti 'Gala' je bilo v poskus vključenih 6 obravnavanj (5 t/ha sadre, 10 t/ha sadre, 15 t/ha sadre, 20 t/ha sadre, 25 t/ha sadre, 20 t/ha hidratiziranega apna, ter negnojeno kontrola), pri sorti 'Braeburn' pa 5 obravnavanj (15 t/ha sadre, 20 t/ha sadre, 25 t/ha sadre, 20 t/ha hidratiziranega apna in negnojeno kontrola). Uporaba hidratiziranega apna je pri sorti 'Gala' in 'Braeburn' rezultirala z največjo spremembo pH tal (povečanje pH), medtem ko uporaba sadre na pH tal ni imela odločilnega vpliva. Pri sorti 'Gala' je bila koncentracija kalcija v plodovih najbolj povišana pri uporabi 10 in 20 t/ha sadre ter nekoliko manj pri uporabi 20 t/ha apna, prav tako je bil tudi pri sorti 'Braeburn' vpliv kalcifikacije na povečanje koncentracije kalcija v plodovih najbolj izrazit pri uporabi 20 t/ha sadre. Vsebnost kalcija v listih se je pri sorti 'Braeburn' povečevala s povečevanjem odmerka sadre, prav tako vsebnost žvepla v tleh. Pri sorti 'Gala' se je koncentracija kalcija v listih povečala le pri uporabi 15 t/ha sadre, vsebnost žvepla v tleh pa se je povečevala z večanjem odmerka sadre. Najboljša obarvanost plodov (delež krovne barve) pri sorti 'Gala' je bila ugotovljena pri najvišjem odmerku sadre in apna, pri sorti 'Braeburn' pa vpliv vira in odmerka kalcijevih gnojil na obarvanost plodov ni bil potrjen. In the year 2007, at the property of the Faculty of Agriculture and Life Sciences, called Pohorski dvor, we studied the impact of using different calcium fertilizers (lime and gypsum) and the impact of different doses of lime on soil, content of calcium in the leaves, on the mineral composition of fruits, pomological parameters of the apple trees as well as ripeness and quality parameters of the produce. The experiment included the cultivars 'Gala' and 'Braeburn'. The cultivar 'Gala' was included in 6 treatments (5 t/ha gypsum, 10 t/ha gypsum, 15 t/ha gypsum, 20 t/ha gypsum, 25 t/ha gypsum, 20 t/ha hydrated lime and unfertilised control samples) and the cultivar 'Braeburn' in 5 treatments (15 t/ha gypsum, 20 t/ha gypsum, 25 t/ha gypsum, 20 t/ha hydrated lime and unfertilised control samples). The use of hydrated lime resulted in the highest pH change (increased pH) with both cultivars, while the use of gypsum did not have a decisive impact on the pH in the soil. With the cultivar 'Gala', the calcium content in fruits increased the most, when 10 and 20 t/ha of gypsum was used. The use of 20 t/ ha of lime also substantially increased the concentration of calcium in the fruit, although not as much as with the use of gypsum. With the cultivar 'Braeburnu', the impact of calcification on increasing concentrations of calcium in the fruits was most prominent when using 20 t/ha of gypsum.With the cultivar Braeburnu, both calcium and sulfur content increased with higher doses of gypsum. With the cultivar Gala, the calcium content increased only when 15 t/ha of gypsum were used, whereas the sulfur content increased with higher doses of gypsum. The best coloring of the cultivar 'Gala' was observed in connection with the highest dose of gypsum and lime. With the the cultivar 'Braeburnu', no differences in the coloring of fruits were demonstrated as a result of fertilization with calcium fertilizers.
- Published
- 2014
47. Vpliv sadre na rast ovsa (Avena sativa L.) in izboljšanje dostopnosti dušika iz gnojevk
- Author
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Kozmus, Sabina and Mihelič, Rok
- Subjects
dušik ,gnojenje ,plant nutrition ,sadra ,gypsum ,nitrogen ,apnenje ,lončni poskusi ,dostopnost dušika ,fertilization ,gnojevka ,manure ,Avena sativa L ,udc:633.13:631.821:631.862:631.416.1:631.421(043.2) ,oves ,slurry ,pot experiments ,nitrogen accessibility ,oats - Published
- 2014
48. Vpliv apna na volumsko stabilnost zemljin v spodnjem ustroju cest
- Author
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Starbek, Franci and Majes, Bojan
- Subjects
glina ,UNI ,apnena stabilizacija ,suction ,udc:624.131:625.731:691.55(043.2) ,adsorpcija ,nabrekljive zemljine ,sukcija ,apno ,clay ,sadra ,diplomska dela ,gypsum ,lime stabilization ,adsorption ,lime ,gradbeništvo ,swelling soils - Published
- 2014
49. Stabilita matric používaných pro stabilizaci a solidifikaci odpadů při hydrotermálních podmínkách
- Author
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Pospíšilová, Marie and Pospíšilová, Marie
- Abstract
Tato bakalářská práce se zabývá stabilizací/solidifikací simulovaného odpadu s vysokým obsahem mědi ve formě chloridu měďnatého. Pro stabilizaci/solidifikaci v experimentální části byly použity tři matrice: sádra, cement a šamotová malta. Zkoumán byl vliv hydroter-málního ošetření. Účinnost jednotlivých matric byla porovnávána pomocí vyluhovacích testů a pevnosti v tlaku.Koncentrace mědi byla ve výluhu stanovena atomovou absorpční spektrometrií., This thesis deals with the stabilization / solidification of simulated waste with a high copper content in the form copper chloride. For the stabilization / solidification in the experimental section were used three matrices: gypsum, cement and fireclay mortar. The influence of hydrothermal treatment of solidificate was been studied. The effectiveness of each matrix was compared using the leaching tests and compressive strength. Concentration of copper in the extract was determined by atomic absorption spectrometry, Ústav inženýrství ochrany životního prostředí
- Published
- 2015
50. The application of gypsum in an orchard
- Author
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Ločnikar, Mojca and Unuk, Tatjana
- Subjects
udc:634.11:631.821(043.2) ,kalcij ,orchard ,calcium ,sadovnjak ,quality ,kakovost ,sadra ,gypsum - Abstract
Poskus vrednotenja vpliva kalcijevih gnojil na lastnosti tal ter mineralno sestavo plodov je potekal v letih od 2004 do 2006 na posestvu UKC Pohorski dvor. Vključeni sta bili sorti jabolk 'Gala' in 'Braeburn'. Kalcifikacija tal je bila izpeljana jeseni leta 2004 in 2005 z različnimi odmerki kalcijevih gnojil. Poskus s sorto 'Gala' je vključeval gnojenje s 5 t sadre/ha, 10 t sadre/ha, 15 t sadre/ha, 20 t sadre/ha in 20 t hidriatiziranega apna/ha ter nepognojeno kontrolo. Poskus s sorto 'Braeburn' je vključeval gnojenje s 15 t sadre/ha, 20 t sadre/ha, 25 t sadre/ha in 20 t hidratiziranega apna/ha ter nepognojeno kontrolo. V poskusu smo želeli ugotoviti vpliv sadre na reakcijo tal, dostopnost hranil, predvsem kalcija v tleh in vpliv različnih načinov kalcifikacije na mineralno sestavo plodov. pH tal se je povečal po enkratni kalcifikaciji tal z apnom pri sorti 'Braeburn' za 15 % in pri sorti 'Gala' za 71 %. Po dvakratni kalcifikaciji z apnom se je pH tal v nasadu dreves sorte 'Gala' povečal za 80 %. Uporaba apna (20 t/ha) je povečala koncentracijo Ca v plodovih sorte 'Braeburn' za 16 %, medtem ko uporaba drugih kalcijevih gnojil tega učinka ni imela. Pri sorti 'Gala' je bil vpliv kalcifikacije na povečanje koncentracije Ca v plodovih manj izrazit. At the Agricultural Centre Pohorski dvor we carried out a field trial aimed at evaluation of the effect of calcium fertilizers on soil properties and mineral composition of fruits in the years from 2004 to 2006 on cv. Gala and cv. Braeburn. The soil calcification with different quantities of calcium fertilizers was performed in the autumns of 2004 and 2005. With cv. Gala our trial included fertilization with 5 t of gypsum/ha, 10 t of gypsum /ha, 15 t of gypsum /ha, 20 t of gypsum/ha, 20 t of hydrated lime, and Control. The trial with cv. Braeburn included fertilization with 15 t of gypsum/ha, 20 t of gypsum /ha, 25 t of gypsum /ha, 20 t of hydrated lime, and Control. The aim of our trial was to establish the impact of gypsum application on the soil reaction, availability of nutrients, especially calcium, and the effects of various ways of calcification on the mineral composition of fruits of both cultivars. In cv 'Braeburn' pH in the soil was increased by 15 % and by 71 % in cv 'Gala in case of one application of hydrated lime. In case of two applications of hydrated lime, pH in cv. 'Gala' was increased by 80 %. The application of hydrated lime (20 t/ha) increased the Ca concentration in the apples of cv. 'Braeburn' by 16 %, while this effect was not achieved by the application of other calcium fertilizers. In cv. 'Gala' the effect of calcification on the increase of Ca concentration in apples was less significant.
- Published
- 2012
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