11,116 results on '"Material"'
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2. Investigating the impact of biophilic design on employee performance and well-being by designing a research instrument
- Author
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Alipour, Leyla and Khoramian, Maryam
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- 2024
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3. Digital Interactive Supplementary Material in Biotechnology for Grade 8 Learners.
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Cristo, Bettina Joy U.
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MASTER teachers ,RESEARCH personnel ,SCIENCE teachers ,STANDARD deviations ,BIOTECHNOLOGY - Abstract
This study aimed to develop a digital interactive supplementary material in Biotechnology for Grade 8 learners. It aimed to help the learners in coping with the lessons and improve their performance in selected lessons in Biotechnology. Twenty-seven (27) learners from Grade 8 Special Science Class of Angono National High School in the School Year 2023-2024 were purposively selected as respondents of the study. The Digital Interactive Supplementary Material in Biotechnology was developed based on the competencies in Biotechnology during the third quarter. It sought to determine the level of performance and the significant difference in the level of performance of the learners before and after exposure to the developed supplementary material. The mean and standard deviation were utilized to determine the level of performance of the students as revealed in their pretest and posttest results. Additionally, dependent t-test was used to determine the significant difference in the level of performance of the students. The research method used was quasi-experimental design to determine the level of performance of learners in the pretest and posttest results and the difference between the pretest and posttest scores before and after the exposure to the developed material. The validity of the digital interactive material was validated by master teachers and experts Science instructors and professors. The data gathered before and after exposure to the developed material revealed from "Average" to "High" verbal interpretations in which the developed digital interactive supplementary material was utilized with respect to the different competencies which showed an improved performance of the learners after the exposure to the developed material. The result of the t-test revealed that there was a significant difference between the performance of the Grade 8 learners before and after exposure to the developed digital interactive supplementary material in Biotechnology. The researcher concluded that the level of performance of the Grade 8 learners had a significant difference before and after utilizing the developed digital interactive supplementary material in Biotechnology. Hence, the supplementary material improved the level of performance of the learners in all the competencies in which the developed material was used. [ABSTRACT FROM AUTHOR]
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- 2024
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4. Progress in Dentin-Derived Bone Graft Materials: A New Xenogeneic Dentin-Derived Material with Retained Organic Component Allows for Broader and Easier Application.
- Author
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Sapoznikov, Lari and Humphrey, Martin
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GROWTH differentiation factors , *BONE grafting , *SURGICAL excision , *DENTAL implants , *DENTAL materials - Abstract
The optimal repair of rigid mineralized tissues, such as bone, in cases of fracture, surgical resection, or prosthetic placement, is a complex process often necessitating the use of bone graft materials. Autogenous bone from the patient is generally the gold standard in terms of outcomes but also has disadvantages, which have resulted in extensive research in the field of tissue engineering to develop better and more convenient alternatives. In the dental field, several initiatives have demonstrated that the dentin material derived from extracted teeth produces excellent results in terms of repairing bone defects and supporting dental implants. Dentin is acellular and thus, in contrast to autogenous bone, cannot provide osteoblasts or other cellular elements to the grafted region, but it does contain growth and differentiation factors, and has other properties that make it an impressive material for bone repair. In this review, the beneficial properties of dentin and the ways it interacts with the host bone are described in the context of bone graft materials. Autogenous tooth material has limitations, particularly in terms of the need for tooth extraction and the limited amount available, which currently restrict its use to particular dental procedures. The development of a xenograft dentin-derived material, which retains the properties of autogenous dentin, is described. Such a material could potentially enable the use of dentin-derived material more widely, particularly in orthopedic indications where its properties may be advantageous. [ABSTRACT FROM AUTHOR]
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- 2024
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5. The Impact of Chlorinated Water and Sun Exposure on the Durability and Performance of Swimwear Materials.
- Author
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Potočić Matković, Vesna Marija, Salopek Čubrić, Ivana, and Krstović, Katarina
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SUNSHINE , *DETERIORATION of materials , *MATERIALS testing , *SUMMER , *MATERIALS management , *POLYMER blends , *POLYAMIDES - Abstract
Understanding the factors that affect how materials age is essential for creating a durable product with long-lasting properties. It is also important to prioritize defining aging parameters that reflect the real-world conditions the materials will encounter. For this study, a range of swimwear materials were selected consisting of a blend of polymer (polyamide/polyester) and elastane in varying ratios. In order to simulate aging conditions, materials were immersed in chlorinated outdoor pool water during the summer season, either in shade or the sun, for 200 and 300 h. The materials were tested for mass per unit area, thickness, tensile properties, and moisture management. A slight mass per unit area increase was observed, rising from 1.0% after 200 h of chlorine and sunlight exposure to 3.7% after 300 h. Thickness increased by 1.7% after 200 h and 3.2% after 300 h of chlorine exposure, with no significant effect of sunlight. Breaking force dropped by 12.4% after 200 h in chlorine and 8.2% in chlorine and sunlight, becoming more pronounced after 300 h (65.7% in chlorine and 65.1% in chlorine and sunlight). The overall moisture management capability declined from 0.4888 to 0.3457 after 200 h in chlorine and 0.3393 with sunlight, dropping further after 300 h to 0.3838 and 0.3253, respectively. [ABSTRACT FROM AUTHOR]
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- 2024
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6. Biomechanical design of a new proximal humerus fracture plate using alternative materials.
- Author
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Islam, Sabrina, Dembowski, Mitchell, Schemitsch, Emil H., Bougherara, Habiba, Bagheri, Z. Shaghayegh, and Zdero, Radovan
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SHAPE memory alloys , *POROUS metals , *TENSILE strength , *HUMERAL fractures , *METAL foams - Abstract
Comminuted proximal humerus fractures are often repaired by metal plates, but potentially still experience bone refracture, bone "stress shielding," screw perforation, delayed healing, and so forth. This "proof of principle" investigation is the initial step towards the design of a new plate using alternative materials to address some of these problems. Finite element modeling was used to create design graphs for bone stress, plate stress, screw stress, and interfragmentary motion via three different fixations (no, 1, or 2 "kickstand" [KS] screws across the fracture) using a wide range of plate elastic moduli (EP = 5–200 GPa). Well‐known design optimization criteria were used that could minimize bone, plate, and screw failure (i.e., peak stress < ultimate tensile strength), reduce bone "stress shielding" (i.e., bone stress under the new plate ≥ bone stress for an intact humerus, titanium plate, and/or steel plate "control"), and encourage callus growth leading to early healing (i.e., 0.2 mm ≤ axial interfragmentary motion ≤ 1 mm; shear/axial interfragmentary motion ratio <1.6). The findings suggest that a potentially optimal configuration involves the new plate being manufactured from a material with an EP of 5–41.5 GPa with 1 KS screw; but, using no KS screws would cause immediate bone fracture and 2 KS screws would almost certainly lead to delayed healing. A prototype plate might be fabricated using alternative materials suggested for orthopedics and other industries, like fiber‐metal laminates, fiber‐reinforced polymers, metal foams, pure polymers, shape memory alloys, or 3D‐printed porous metals. [ABSTRACT FROM AUTHOR]
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- 2024
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7. Radiation shielding transmission data for modern digital radiography.
- Author
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Li, Xinhua, Marschall, Theodore A., Yang, Kai, and Liu, Bob
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DATA transmission systems , *RADIATION shielding , *IONIZATION chambers , *COPPER , *RADIATION protection - Abstract
Background Purpose Methods Results Conclusion Radiography is one of the most widely used x‐ray imaging modalities. In National Council on Radiation Protection and Measurements (NCRP) Report No. 147, transmission data for radiographic systems were evaluated on those installed before 2000. For x‐ray systems (except intraoral dental) manufactured on or after June 10, 2006, the U.S. required minimum half‐value layer (HVL) was increased; for example, 2.9 (2.3) mm Al at 80 kV, where the value in parenthesis denotes the earlier requirement before the above date.To calculate the transmission of the broad x‐ray beam of modern digital radiography (DR) through shielding materials.X‐ray beam HVLs on two DR systems (Agfa DR 600, GE Revolution XR/d) were measured in 10 kV increments between 60 and 120 kV, with a calibrated ionization chamber (Radcal model 10 × 5‐60) and varying thickness of aluminum 1100 plates. Monte Carlo (Geant4) simulation was performed to calculate the transmission of broad x‐ray beams through lead, concrete, gypsum, and steel, with x‐ray HVLs matching those of the DR 600 at two beam filtrations (default, 1 mm Al plus 0.1 mm Cu added filtration). The transmission data were fitted to the Archer equation.HVLs on two DR systems with default beam filtration were consistent (median difference, 2.1%; maximum difference, 5.5%). An additional beam filtration option (1 mm Al plus 0.1 mm Cu) on the DR 600 substantially increased HVLs by 45.2%–61.2%. Transmission fitting parameters were provided for seven tube voltages (60–120 kV) at two beam filtrations.This work presents transmission data for modern DR systems, indicating increased x‐ray beam filtration compared to the primary x‐ray beam in NCRP Report No. 147. The updated transmission data can enhance structural shielding evaluations at individual tube voltages or with a workload distribution. [ABSTRACT FROM AUTHOR]
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- 2024
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8. Constructing and governing freedom – physical environments as a discursive practice in Swedish early childhood education.
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Andersson, Elsa
- Subjects
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EARLY childhood education , *PRESCHOOL teachers , *DISCURSIVE practices , *PRESCHOOLS , *LIBERTY - Abstract
This article problematizes the ideals and norms surrounding the organization of environments for children. It investigates the understanding of the arrangement and organization of Early Childhood Education (ECE) environments, aiming to offer an alternative perspective on taken-for-granted assumptions about ideal environments for children. Using Foucault's conceptualization of discourse and power, the article examines how discursive practices shape and reshape norms and ideals of what constitutes a 'good' physical environment in ECE. Based on 145 texts published between 1969 and 2021 in an influential Swedish preschool teacher journal, the study analyzes systematic discourses on preschool environments. Key findings concern the environment's role in the governing of children. The discursive construction of ideal environments emphasizes a 'toy-free' setting with minimal framing and instruction, pointing to a discursive shift in the desired type of freedom for children: from the freedom to become a part of culture, to the freedom to change culture. [ABSTRACT FROM AUTHOR]
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- 2024
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9. Development approach of a workflow for 3D printing of living mycelium materials and their growth manipulation.
- Author
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Elsner, Sophia, Jesch, Rebekka, Weisheit, Linda, Boxberger, Lukas, Ihlenfeldt, Steffen, and Drossel, Welf-Guntram
- Abstract
As a viscous mycelium-substrate-composite, mycelia can be processed into more complex geometries in generative extrusion-based processes, even without molding tools. Biological transformation can also affect the properties of a printed object such that the mycelium still lives and grows after the 3D-build-process and changes the object over time. Depending on the substrate composition, type of fungus and growth conditions, different properties of the object can be manipulated. Different test geometries with corresponding preliminary characterization tests are shown. The present results demonstrate that test geometries could be successfully 3D printed with living mycelium material and manipulated during cultivation. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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10. Comparative field assessment of grounding enhancement material for electrical earthing system.
- Author
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Lim Zhe Kang, Siow Chun Lim, Muhammad, Usman, Aman, Fazlul, and Nor, Normiza Mohamad
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EARTH resistance (Geophysics) ,COPPER sulfate ,SALT ,COPPER chlorides ,PLANT-soil relationships - Abstract
Grounding enhancement material (GEM) is used to lower the earthing resistance value of a given earthing system. In this paper, a commercially available GEM is experimented at the field alongside with Sodium Chloride, Copper II Sulphate and planting soil. The well established Wenner's 4 pole method and fall of potential method was employed to measure the soil resistivity and earthing resistance respectively. It was found that the salts i.e., Sodium Chloride and Copper II Sulphate are superior in reducing the earthing resistance as reduction of more than 85% were observed. However, the commercial GEM has exhibited the most stable earthing resistance value over a period of 101 days, exhibiting the lowest standard deviation. This seems to suggest that the commercial GEM has superior moisture retention capability. This study also proven that Sodium Chloride can be dissolved by heavy downpour and replenishing it periodically is needed in a tropical country like Malaysia with regular thunderstorms and heavy downpours. [ABSTRACT FROM AUTHOR]
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- 2024
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11. Geleneksel Konut Mimarisinde Malzeme-Biçim İlişkisi ve Cephelere Etkisi.
- Author
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Çakıroğlu, Birgül and Akat, Reyhan
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CONSTRUCTION materials ,ART techniques ,HOUSING ,DWELLINGS - Abstract
Copyright of Online Journal of Art & Design is the property of Online Journal of Art & Design 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
- 2024
12. Space Efficiency of Tall Buildings in Singapore.
- Author
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Aslantamer, Özlem Nur and Ilgın, Hüseyin Emre
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INDUSTRIALIZED building ,TALL buildings ,FUNCTION spaces ,ARCHITECTS ,ENGINEERING ,SKYSCRAPERS - Abstract
Space efficiency in Singaporean tall buildings results from a complex interplay of historical, architectural, engineering, technological, socioeconomic, and environmental factors. The city-state's innovative and adaptive approach has enabled it to overcome the challenges associated with skyscraper construction, leading to the development of some of the most advanced and sustainable high-rise structures in the world. However, there is currently a lack of detailed analysis on space utilization in Singaporean high-rise buildings. This study addresses this gap by examining 63 cases. The main findings of this research: 1. Residential functions, central core layouts, and prismatic shapes are the most frequent. 2. Concrete material with a shear-walled frame system is the preferred structural choice. 3. Average spatial efficiency is 80%, and the core-to-GFA (Gross Floor Area) ratio averages 17%. These metrics vary from a minimum of 68% and 5% to a maximum of 91% and 32%, respectively. These insights offer valuable guidance for Singaporean construction professionals, particularly architects, helping them make informed design decisions for high-rise projects. [ABSTRACT FROM AUTHOR]
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- 2024
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13. An experimental investigation on the effects of the vortex tube material, swirl generator material and the tube length to diameter ratio on vortex tube performance.
- Author
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Rattanongphisat, Waraporn and Jansawang, Sineeporn
- Subjects
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VORTEX tubes , *TUBES , *VORTEX generators , *COMPRESSED air , *STAINLESS steel , *MATERIALS testing , *THERMAL diffusivity - Abstract
• Effect of L/D ratios and swirl generator materials was analyzed and discussed. • Thermal separation was enhanced by low thermal diffusivity vortex generator. • Optimum L/D ratio and operating conditions were indicated by isentropic efficiency. • Non-metal swirl generator integrated with a metal vortex tube was recommended. The current research investigates the effects of the swirl generator material, the tube length to diameter (L/D) ratio, and the vortex tube housing material on its performance. Two vortex tube were designed and constructed using either stainless or brass. In addition to testing different materials for the housing, 5 different materials were examined as potential options for the swirl generator, including stainless steel, brass, polyamide, acrylic and wood. All were having nozzle number of 6. The study encompassed three main areas: examining the impact of various L/D ratios on an entirely stainless vortex tube (ESVT) and an entirely brass vortex tube (EBVT), exploring various swirl generator materials at an optimal L/D ratio for the stainless vortex tube and the brass vortex tube, and investigating the influence of an optimal swirl generator material with varying L/D ratios for the stainless and brass vortex tubes. Operating conditions were controlled for all tests, the natural refrigerant, compressed air was used, the inlet pressure was set to 3.0 bar and the cold mass fraction was varied from 0.40 to 0.90. The results revealed that the performance of the ESVT was greater than the EBVT. The best combination was the polyamide swirl generator and brass vortex tube with an L/D ratio of 19.0. This resulted in the maximum isentropic efficiency of 0.27 at a cold mass fraction of about 0.47. [ABSTRACT FROM AUTHOR]
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- 2024
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14. 电缆附件用硅橡胶的研究进展.
- Author
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高 鹏, 赵 儆, 王钟颖, 徐 浩, 张 雄, and 李 岩
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CABLES ,CLASSIFICATION - Abstract
Copyright of Silicone Material is the property of Silicone Material Editorial Office 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
- 2024
- Full Text
- View/download PDF
15. İç Mimarlık Eğitiminde Deneyim Odaklı Malzeme Öğrenimi Üzerine.
- Author
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ÜMÜTLÜ, Şükran Büşra and ONARAN, Bilge SAYIL
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INTERIOR architecture ,CHOICE (Psychology) ,INTERIOR decoration ,TEACHING methods ,TEACHING aids - Abstract
Copyright of PLANARCH - Design & Planning Research is the property of Ataturk University Coordinatorship of Scientific Journals 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
- 2024
- Full Text
- View/download PDF
16. MATERYAL VE TEKNİK UNSURLAR BÜTÜNÜ OLARAK "KUŞLAR YASINA GİDER" ROMANININ ÇÖZÜMLEMESİ.
- Author
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DURUKOĞLU, Salim and ÖZBAY, Zeynep
- Subjects
LITTERATEURS ,NARRATION ,NOVELISTS ,MONOLOGUE ,READERSHIP - Abstract
Copyright of International Journal of Language Academy is the property of Rota Kariyer 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
- 2024
- Full Text
- View/download PDF
17. Shape and texture biases in dogs’ generalization of trained objects
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Claudia Fugazza, Elodie Jacques, Silvia Nostri, Una Kranzelic, Andrea Sommese, and Ádám Miklósi
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Generalization ,Dog ,Shape ,Material ,Texture ,Medicine ,Science - Abstract
Abstract Shape bias, the tendency to link the meaning of words to the shape of objects, is a widely investigated phenomenon, but the extent to which it is linked to vocabulary acquisition and/or to tool using is controversial. Understanding how non-human animals generalize the properties of objects can provide insights into the evolutionary processes and cognitive mechanisms that influence this bias. We investigated object generalization in dogs, focusing on their tendency to attend to shape or texture in a two-way choice task. We analyzed data of thirty-five dogs that were successfully trained to discriminate a target object among distractors and retrieve it to their owner. In subsequent testing, dogs chose between objects similar to the target in either shape or texture. Results showed that dogs first approached objects of similar shape, but then predominantly chose objects of similar texture. This suggests a reliance on visual cues for initial assessment and tactile cues for final discrimination. Our findings highlight the influence of perceptual modalities on object generalization in dogs, showing that, before object manipulation, they seem to show a shape bias but, once they make physical contact with the objects, they rather rely on texture to generalize. This study contributes to our understanding of generalization in a non-verbal and non-tool using species and opens avenues for comparative investigations into the relationship between vocabulary acquisition, tool using and biases in object generalization.
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- 2024
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18. Limits of Design and Technique: Lina Bo Bardi Staircases
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Muammer Yaman and Esma Eroğlu
- Subjects
lina bo bardi ,staircase ,material ,architectural design ,Engineering design ,TA174 ,Architectural engineering. Structural engineering of buildings ,TH845-895 - Abstract
Staircases, a part of architectural circulation and structure, can become a unique design value with the application technique that directs design and functionality. However, here, attention is drawn to the directive nature of the technique rather than its perception as a deterministic attitude in design. Bo Bardi’s architectonic approach has placed her in a distinguished position among modern architects. The effect of the architect’s staircase design and application technique on building tectonics is worth examining. Thus, this study aims to examine the staircases of Lina Bo Bardi, where design and technique are dissolved in integrity. Bo Bardi’s staircases were examined in terms of meaning, form, function, and technique, with classification for material use. In this context, unique situations were observed in the design and technical applications of reinforced concrete, wood, and metal materials used in stairs. The fact that the place, technique, and the architect’s thought guided the design turned the staircase into a symbolic value and has made the staircase the founding element of the space. This approach, which does not consider design and technique independently, creates a strong reference for today that structural elements such as stairs can be produced as symbols in space.
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- 2024
- Full Text
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19. İç Mimarlık Eğitiminde Deneyim Odaklı Malzeme Öğrenimi Üzerine
- Author
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Bilge Sayıl Onaran and Şükran Büşra Ümütlü
- Subjects
design education ,interior architecture ,material ,sustainability ,workshop ,atölye ,i̇ç mimarlık ,malzeme ,sürdürülebilirlik ,tasarım eğitimi ,Architecture ,NA1-9428 - Abstract
İç mimarın malzeme bilgisi, tasarlanan mekânın işlevselliğini, estetiğini, sürdürülebilirliğini ve genel başarısını doğrudan etkilemektedir. İç mekân tasarımında atmosfer ve konfor sağlayan doğru malzemeyi seçmek, doğru uygulama bilgisini ve malzemenin her açıdan tanınmasını gerektirir. İç mimaride malzeme bilgisinin edinilmesi deneyime dayalı bir metodolojiye yönelmektedir. Böylece deneyime ve duyuya dayalı, gerekli donanım ve mekânları içeren çok yönlü öğrenme yöntemleri geliştirilir. Bu çalışma, iç mimaride malzeme öğrenimine uygulanan deneyim odaklı yöntemlere odaklanmaktadır. Amaç, iç mimaride malzeme derslerinin uygulama açısından etkinliğinin artırılması gerekliliğini vurgulayarak, mevcut yöntemleri iki örnekle inceleyerek öneriler geliştirmektir. Araştırmada incelenen iki bölümdeki materyal dersler, ders içerikleri ve bunların diğer ders ve stüdyolarla ilişkileri incelenmiştir. Materyal derslerinin öğretim yöntemlerinden yola çıkarak Türkiye'de uygulanabilecek yöntemler konusunda öneriler geliştirilmiştir. Çalışmanın literatürdeki diğer çalışmalardan farkı, materyal derslerin neden uygulamalara, mekânlara ve yöntemlere ihtiyaç duyduğunu açıklığa kavuşturmaktır. Deneysel yöntemlerle materyal öğrenimi çok yönlü bir deneyim ve materyalin yapısını keşfetme fırsatı vermektedir.
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- 2024
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20. Instruction Materials for English Intervention in the Grades I Learners in Pasacao District, Division of Camarines Sur: Basis for Material Development.
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Olavere, Chandy P. and Espiritu, Decimo L.
- Abstract
The main purpose of this study is to develop instructional materials and field test these materials to measure the effect of literacy intervention on the performance of Grade 1 learners of Pasacao District, Division of Camarines Sur during the school 2018-2019. Experimental Design specifically the Pre-test and Post-test Nonrandom Design research was used by the researcher to address the different problems pose in this study. Statistical analysis of the data which requires the use of the mean and t-test yielded the following results and findings. Demographic of respondents in terms of gender, the literacy level of early grade learners in pre-test and post-test ranges from average to very high. There is a highly significant difference exist between the pre-test and post-test scores of learners. According to the findings of the study the female was 12 out of 23 learners or 52.17 percent and the male was 11 out of 23 or 47.78 percent. On the other hand the obtained mean in pretest is 14.1304 while 24.8261 in posttest. The mean of scores showed that the increase of literacy level is from average to very high. The Computed t of 35.918 and its probability value of .000 at .05 level of significance is interpreted that there is a highly significant difference exist between the pre-test and posttest scores of learners. Null hypothesis claiming that there is no significant difference on the literacy levels in pre-test and post-test is therefore rejected. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
21. Digital geographies 1: Reality bytes.
- Author
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Maalsen, Sophia
- Subjects
- *
DIGITAL technology , *GEOGRAPHERS , *AFFECT (Psychology) , *INTERNET , *GEOGRAPHY - Abstract
This report is intended to provide a foundation to debates which illustrate how geographers have approached the challenge of understanding something variously invisible and immaterial as the digital and its impacts on the production of space. Thus, this first report will focus on how geographers conceptualise digitally produced and mediated spaces. It will trace the way we have understood digital spaces from grappling with the dichotomies of online and offline, real and the virtual, to grounding them materially, rendering them visible, and to more recent shifts about their affective orientations. [ABSTRACT FROM AUTHOR]
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- 2024
- Full Text
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22. Preference technique: deceptive visual representations in the digital realm
- Author
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Niccolas Troy Putra Heriyanto, Arina Hayati, and Didit Novianto
- Subjects
architecture ,material ,representation ,technique ,visual perception ,Engineering (General). Civil engineering (General) ,TA1-2040 ,Architecture ,NA1-9428 - Abstract
In the digital era, architectural designs can be quickly visualized. However, the material abstraction from digital visualization tools may reduce immersion and make it hard to recognize design intention. This paper discusses how architectural students acknowledge the design representation despite various ways of visualization. Material is key to visualizing architecture by adding realism, depth, and texture. People create mental concepts of material beyond words. Thus, design representations can have positive or negative impacts depending on how effectively the idea is delivered to the audience. This study uses a quantitative method to investigate the extent to which the preference technique of students represents the design’s idea. The study's main objective is to identify the criteria for representation that effectively convey the designer's intentions while minimizing visual deception. The analyzed data is classified into three archetypes consisting of (1) the student’s previous knowledge about representation, (2) the intention of design representation, and (3) mass and material in representation. The result shows no strict correlation between previous knowledge and the preferred idea representation technique. Yet, the result indicates a correlation between previous knowledge and techniques used to represent material. The photorealism technique is preferable in representing the clarity of material in representation. Photorealism has advantages in showing the quality of shade in the material. On the other hand, respondents tend to choose to use sketches to show information about scale and mass. The research comprehensively explains this phenomenon in the context of positive theory, particularly in design communication and representation.
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- 2024
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23. Water Temperature Effect on Flexural Strength of Posterior Ankle Splint: An Experimental Study
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Pirot C, Sirimahatthanakul N, Naowanirut A, and Sirithiantong T
- Subjects
splint ,temperature ,material ,flexural strength ,foot and ankle injuries ,Orthopedic surgery ,RD701-811 - Abstract
Introduction: Plaster of Paris splints are commonly utilised for foot and ankle injuries. However, during follow-ups, some of these splints were found to be broken. Various methods, including splint form or augmentation changes, have been explored to enhance flexural strength. However, the impact of water temperature on the splint's flexural strength still needs to be studied. This research aimed to investigate the effect of water temperature on the flexural strength of the Plaster of Paris splint. Materials and methods: Three groups were set up based on different water temperatures: cold, hot, and room temperature. Posterior ankle splints were created and immersed in water at these varying temperatures, with five pieces tested per group. The splints were then allowed to harden fully over three days. Each splint underwent a tensile strength test using an axial pressure machine, which recorded their flexural strength data. Results: There were no statistically significant differences in the general characteristics of the splints. The flexural strengths of the three splint groups (pre-cooled, pre-heated, and room temperature) were 182.6N, 162.45N, and 228.91N, respectively. Statistical analysis revealed that room-temperature splints demonstrated a statistically significant increase in flexural strength compared to pre-heated splints (p
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- 2024
- Full Text
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24. Research on the enhancement material and culture method of soil aggregates composed of feldspathic sandstone and sand
- Author
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Juan Li, Jinbin Li, Dongwen Hua, Shaowei Li, Zhe Pang, and Hongli Jiang
- Subjects
Agglomerate ,Material ,Mean mass diameter ,Geometric mean diameter ,Fractal dimension ,Medicine ,Science - Abstract
Abstract The Mu Us Sandy Land is a region characterized by wind-blown sand and soil erosion in northern China. To enhance the soil quality of this area, various organic materials were incorporated into the mixed soil at a volume ratio of 1:2 for feldspathic sandstone to sand. Culture was conducted in the field and under constant temperature conditions in laboratory culture chambers. Four treatments were established in the experiment, each calculated based on weight ratio and controlled (with no organic material added, CK); single application of straw (5% straw, P1); single application of biochar (5% biochar, P2); combined application of biochar and straw (5% biochar + 5% straw, P3). After 90 days of culture, soil samples were collected for analysis of various indicators such as soil aggregate particle size distribution, water stability of soil aggregates, mean weight diameter, mean geometric diameter, and fractal dimension using dry sieving and wet sieving methods. The objective is to establish a scientific basis and provide technical support for addressing the challenges associated with compound soil and implementing rational fertilization measures. The research results indicate that: (1) The quantity of aggregates > 0.25 mm under different treatments follows the order CK 0.25 (x) of compound soil, with a correlation coefficient of up to 0.9851. In conclusion, the incorporation of organic materials can effectively enhance the proportion of macroaggregates in compound soil consisting of Feldspathic sandstone and sand, thereby improving soil stability and erosion resistance. The optimal outcome is achieved through the combined application of biochar and straw. Indoor culture proves to be more effective than field culture, while wet sieving accurately reflects the structural characteristics of compound soil under both dry and wet sieving treatments.
- Published
- 2024
- Full Text
- View/download PDF
25. Material–Art–Dust. Reflections on Dust Research between Art and Theory
- Author
-
Rauh Andreas
- Subjects
material ,materiality ,dust ,reflexions ,art ,aesthetics ,theory ,perception ,Philosophy (General) ,B1-5802 - Abstract
Dust is a distinctive material that, in addition to its physical properties, reveals anthropological and cultural dimensions, particularly within aesthetic contexts. In a collaborative project focused on “dust,” a theoretical-systematic approach is combined with an artistic-practical-participatory one. Philosophical reflections and artistic concepts related to the material “dust,” specific artworks involving dust, and the relationship between artwork and theory are interwoven. Thus, the text discusses various types of dust, the role of the artist, different modes of perception, cultural context, forms of dust and materiality, media-specific characteristics, and questions of mediation. Throughout this process, common practices of artistic and theoretical engagement are transformed and developed.
- Published
- 2024
- Full Text
- View/download PDF
26. Skeletal muscle injury treatment using the Silk Elastin® injection in a rat model
- Author
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Kyohei Nakata, Masakazu Ishikawa, Naosuke Kamei, Shigeru Miyaki, Nobuo Adachi, Keiichiro Inoue, and Shingo Kawabata
- Subjects
Skeletal muscle ,Injury ,Material ,Fibrosis ,Medicine (General) ,R5-920 ,Cytology ,QH573-671 - Abstract
Background: Skeletal muscle injury (SMI) is often treated conservatively, although it can lead to scar tissue formation, which impedes muscle function and increases muscle re-injury risk. However, effective interventions for SMIs are yet to be established. Hypothesis: The administration of Silk Elastin® (SE), a novel artificial protein, to the SMI site can suppress scar formation and promote tissue repair. Study design: A controlled laboratory study. Methods: In vitro: Fibroblast migration ability was assessed using a scratch assay. SE solution was added to the culture medium, and the fibroblast migration ability was compared across different concentrations. In vivo: An SMI model was established with Sprague–Dawley rats, which were assigned to three groups based on the material injected to the SMI site: SE gel (SE group; n = 8), atelocollagen gel (Atelo group; n = 8), and phosphate buffer saline (PBS group; n = 8). Histological evaluations were performed at weeks 1 and 4 following the SMI induction. In the 1-week model, we detected the expression of transforming growth factor (TGF)-β1 in the stroma using immunohistological evaluation and real-time polymerase chain reaction analysis. In the 4-week model, we measured tibialis anterior muscle strength upon peroneal nerve stimulation as a functional assessment. Results: In vitro: The fibroblast migration ability was suppressed by SE added at a concentration of 10⁴ μg/mL in the culture medium. In vivo: In the 1-week model, the SE group exhibited significantly lower TGFβ −1 expression than the PBS group. In the 4-week model, the SE group had a significantly larger regenerated muscle fiber diameter and smaller scar formation area ratio than the other two groups. Moreover, the SE group was superior to the other two groups in terms of regenerative muscle strength. Conclusion: Injection of SE gel to the SMI site may inhibit tissue scarring by reducing excessive fibroblast migration, thereby enhancing tissue repair. Clinical relevance: The findings of this study may contribute to the development of an early intervention method for SMIs.
- Published
- 2024
- Full Text
- View/download PDF
27. Elaboration of an innovative plant biomaterial for its valorization in the treatment of wastewater
- Author
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El Mokhtar Saoudi Hassani, Imane Mehdaoui, Dounia Azzouni, Rachid Mahmoud, Abdeslam Taleb, Gezahign Fentahun Wondmie, Ahmad Mohammad Salamatullah, Mohammed Bourhia, Samir Ibenmoussa, Mustapha Taleb, and Zakia Rais
- Subjects
Material ,Aleppo pine ,Physicochemical characterization ,Spectroscopic characterization ,Technology ,Chemical technology ,TP1-1185 ,Biotechnology ,TP248.13-248.65 - Abstract
Abstract The global scientific community is deeply concerned about the deterioration of water quality resulting from the release of industrial effluents. This issue is of utmost importance as it serves to safeguard the environment and combat water pollution. The objective of this work is to elaborate a biomaterial of vegetable origin, based on the twigs of Aleppo pine, and to use it as an abundant and less expensive material for the treatment of wastewater. For this reason, the twigs were treated physically to get the powder called biomaterial FPA (Aleppo pine fiber), which was characterized by physicochemical, and spectroscopic analyses namely scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD). The crystallinity index of FPA was evaluated by the peak height method. The findings indicate that the FPA powder has an acidic nature, exhibiting a porous structure that promotes the adsorption and binding of molecules. Additionally, it has a zero charge point of 5.8 and a specific surface area of 384 m2.g−1. It is primarily composed of hydroxyl, carboxyl, and amine functional groups, along with mineral compounds and organic compounds, including cellulose and other mineral elements such as Ca, Mg, Fe, Na, P, Al, K, Ni, and Mo. Combining these characteristics, FPA biomaterial has considerable potential for use as an effective adsorbent biomaterial for various wastewater pollutants. Its abundance and relatively low cost make it an attractive solution to the growing challenges of water pollution worldwide. Graphical Abstract
- Published
- 2024
- Full Text
- View/download PDF
28. Effects of thermomechanical parameters on surface texture in filament materials extrusion: outlook and trends [version 1; peer review: awaiting peer review]
- Author
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John D. Kechagias
- Subjects
Review ,Articles ,material ,extrusion ,parameters ,surface ,texture ,roughness - Abstract
The material extrusion process has been widely used to manufacture custom products. However, the surface texture varies due to the additive mechanism of the process, which depends on the layer height and surface orientation, resulting in varying average surface roughness values for inclined, flat and vertical surfaces. Different strand welding conditions result in non-uniform internal stresses, surface distortions, layer traces, weak bonding, non-uniform pores and material overflow. This paper comprehensively examines material extrusion process achievements in surface texture quality and studies and summarises the most influential processing parameters. Parameter effects are critically discussed for each topic; flat, inclined, and vertical surfaces. The results of this research help reduce post-processing.
- Published
- 2024
- Full Text
- View/download PDF
29. 氢环境脆化损伤机理、影响因素及相关问题探讨.
- Author
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张国信
- Abstract
Copyright of Petroleum Refinery Engineering is the property of Petroleum Refinery Engineering Editorial Office 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
- 2024
- Full Text
- View/download PDF
30. Parenting Class Model as an Innovation in Newborn Care Education Class.
- Author
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Erny Astiti, Ni Komang, Dwi Purnamayanti, Ni Made, Dwi Mahayati, Ni Made, Suarniti, Ni Wayan, and Wirata, I Nyoman
- Subjects
- *
WORKING mothers , *CHILDBIRTH education , *HAZARD signs , *HEALTH facilities , *PREGNANT women - Abstract
Introduction: Parents are fully responsible for the progress of their child, so they should be prepared as early as possible through prenatal education. In reality, antenatal classes focus mainly on pregnancy and childbirth. Materials and methods: This research and development (RND) study is focuses on producing educational classes for preparing for newborn care utilizing the ADDIE method. The study employed purposive sampling, and the sample size consisted of five couples and facilitators. Results: The researchers developed a programme to educate parents of newborn babies, which was tried out on five couples. The session has undergone several revisions, including the adding of material on myths and facts, identifying danger signs and what parents need to do, tips on successful breastfeeding for working mothers, and identifying problems and their solutions. Further improvements included creating educational materials for couples, adjusting seating arrangements to take into account the number of participants and space constraints, and incorporating seat cushions for mothers. Conclusion: The parenting class model as an innovation in newborn care education, tested in limited trials, can generally be applied according to the learning design. However, the model needs to be tested with a larger sample to serve as a reference for implementation in health facilities. In addition, it is necessary to add educational materials on myths about newborn care, practical issues in breastfeeding, and physiological complaints of newborns, as well as the addition of supportive equipment, namely comfortable chairs for pregnant women. [ABSTRACT FROM AUTHOR]
- Published
- 2024
31. 不同微孔滤膜应用于铜绿假单胞菌检测的 质量评价分析.
- Author
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章志超, 朱应飞, 邱国鹏, and 占忠旭
- Abstract
Copyright of Journal of Food Safety & Quality is the property of Journal of Food Safety & Quality Editorial Department 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
- 2024
- Full Text
- View/download PDF
32. Probabilistic Assessment of the Durability of Metallurgical Equipment Based on Microstructural Modeling of the Stressed State of the Material.
- Author
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Slobodyanskiy, M. G. and Korchunov, A. G.
- Abstract
A methodology has been developed for the probabilistic assessment of durability indicators of metallurgical equipment according to strength criteria based on microstructural modeling of the stressed state of the material, the distinctive feature of which is the ability to consider its anisotropy and structural defects in the form of nonmetallic inclusions or the consequences of poor-quality heat treatment. This methodology can be used to make a reasonable choice of material for parts when designing equipment or developing the structure of repair cycles at the renovation stage for objects put in operation for the first time. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
33. Development Status of Wear-Resistant Protection Technology for Picking Spindle of Cotton Picker.
- Author
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Shi Xuebin, Hu Xue, Xia Bo, Liu Xinzhou, and Fan Qingqing
- Abstract
In recent years, with the development of cotton picking machinery, the mechanized picking degree of cotton has been improved. As the core component of the cotton-picking machine, the picking spindle is intertwined with the cotton in the working process. Fatigue, wear and fracture often occur during cotton picking process. At present, the domestic picking spindle is mainly imported from abroad, which is expensive. Therefore, it is necessary to carry out in-depth research on the wear-resistant protection of the ingot picking. This paper mainly introduces the common methods and research status of the wear protection of cotton-picking machine, and briefly analyzes the main problems and development trends of the wear protection technology of cotton picker picking spindle. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
34. 真实感材质外观的表示和高效渲染技术研究现状及展望.
- Author
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陶成之, 孙奇, 过洁, 袁军平, 周辰熙, 何雪滟, 范之闽, 史鹏程, and 郭延文
- Abstract
Copyright of Journal of Computer-Aided Design & Computer Graphics / Jisuanji Fuzhu Sheji Yu Tuxingxue Xuebao is the property of Gai Kan Bian Wei Hui 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
- 2024
- Full Text
- View/download PDF
35. Implementation contexts and strategies for alternative peripherally inserted central catheter material and design selection: A qualitative exploration using CFIR/ERIC approach.
- Author
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August, Deanne, Walker, Rachel M., Gibson, Victoria, Marsh, Nicole, Kleidon, Tricia M., Delaforce, Alana, Mihalopoulous, Claire, Ullman, Amanda, and Keogh, Samantha
- Subjects
- *
PERIPHERALLY inserted central catheters - Abstract
Aim Design Methods Results Conclusion Reporting Method Patient or Public Contribution To explore the implementation contexts and strategies that influence the uptake and selection of alternative peripherally inserted central catheter (PICC) materials and design.Qualitative evaluation of end user perspectives within a randomized control trial of different PICC materials and design.Semi‐structured interviews with key stakeholders were undertaken via an adapted, rapid‐analytic approach using the Consolidated Framework for Implementation Research. Outcomes were mapped against the Expert Recommendations for Implementing Change (ERIC) tool for strategies to guide innovation in PICC practice.Participants (n = 23) represented a combination of users and inserters/purchasers, from adult and paediatric settings. Dominant themes included intervention characteristics (intervention source), inner setting (structural characteristics) and individuals involved (self‐efficacy). Strategies emerging to support a change from ERIC mapping (n = 16) included promotion of intervention adaptability, inclusion of staff and consumer perspectives and sufficient funding. Implementation contexts such as inner setting and individuals involved equally impacted PICC success and implementation effectiveness and enabled a greater understanding of barriers and facilitators to intervention implementation in this trial.Trial evidence is important, but healthcare decision‐making requires consideration of local contexts especially resourcing. Implementation contexts for Australian healthcare settings include a practical, strategic toolkit for the implementation of alternative PICC materials and designs.This study adhered to COREQ guidelines.No patient or public contribution. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
36. Local Diagnostics Of Electrophysical Properties In Semiconductor Nanostructures.
- Author
-
Khoshimzhanovich, Kuchkarov Bekhzod, Okhundaevich, Mamatkarimov Odiljon, and Abdugadirovich, Kholmirzaev Akrom
- Abstract
Annotation. In today's century, the development of information technology has given impetus to the development of the economy. Impact of the development of semiconductor materials and nanoelectronics technologies on innovative processes in the electronic economy. This research examines the concentration and energy levels of charge carriers in modern conditions for the study of electrophysical tools of semiconductor materials and the application of new diagnostic methods. Semiconductor technologies form the basis of modern electronics and information technologies. These technologies are especially important in creating high-speed telecommunication systems. Semiconductor electronic devices are basically the elementary base of micro- and nanoelectronics. Therefore, research and synthesis of new materials, study of their electrophysical properties, production technology were developed in this field. [ABSTRACT FROM AUTHOR]
- Published
- 2024
37. Research on the enhancement material and culture method of soil aggregates composed of feldspathic sandstone and sand.
- Author
-
Li, Juan, Li, Jinbin, Hua, Dongwen, Li, Shaowei, Pang, Zhe, and Jiang, Hongli
- Subjects
- *
SOIL structure , *MATERIAL culture , *SANDSTONE , *CORN straw , *FRACTAL dimensions , *SAND , *PARTICLE size determination - Abstract
The Mu Us Sandy Land is a region characterized by wind-blown sand and soil erosion in northern China. To enhance the soil quality of this area, various organic materials were incorporated into the mixed soil at a volume ratio of 1:2 for feldspathic sandstone to sand. Culture was conducted in the field and under constant temperature conditions in laboratory culture chambers. Four treatments were established in the experiment, each calculated based on weight ratio and controlled (with no organic material added, CK); single application of straw (5% straw, P1); single application of biochar (5% biochar, P2); combined application of biochar and straw (5% biochar + 5% straw, P3). After 90 days of culture, soil samples were collected for analysis of various indicators such as soil aggregate particle size distribution, water stability of soil aggregates, mean weight diameter, mean geometric diameter, and fractal dimension using dry sieving and wet sieving methods. The objective is to establish a scientific basis and provide technical support for addressing the challenges associated with compound soil and implementing rational fertilization measures. The research results indicate that: (1) The quantity of aggregates > 0.25 mm under different treatments follows the order CK < P1 < P2 < P3, and the differences between treatments are significant (P < 0.05); (2) Soil water stability, mean weight diameter (MWD), mean geometric diameter (GMD), and fractal dimension of soil aggregates in compound soil with different organic material additions are superior to the control, and the effect of biochar on improving soil aggregates is better than that of corn straw. The combined application of both significantly improves the effect compared to single applications. In both culture modes, under wet sieving, the P3 treatment shows the highest MWD and GMD of soil aggregates, with an increase ranging from 3.45% to 85% and 4.55% to 38.46%, respectively, compared to other treatments. (3) The trend of fractal dimension among treatments is consistent: P3 < P2 < P1 < CK, and the differences between treatments are significant (P < 0.05). Moreover, there is a good negative correlation linear equation relationship between the fractal dimension (y) and WR > 0.25 (x) of compound soil, with a correlation coefficient of up to 0.9851. In conclusion, the incorporation of organic materials can effectively enhance the proportion of macroaggregates in compound soil consisting of Feldspathic sandstone and sand, thereby improving soil stability and erosion resistance. The optimal outcome is achieved through the combined application of biochar and straw. Indoor culture proves to be more effective than field culture, while wet sieving accurately reflects the structural characteristics of compound soil under both dry and wet sieving treatments. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
38. Machining of micro-hole on nitinol alloy by UV-MFEDM process.
- Author
-
Wang, Wencheng, Li, Li, Liu, Xianfu, and Bai, Xue
- Subjects
MAGNETIC flux density ,NICKEL-titanium alloys ,ELECTROCHEMICAL cutting ,MACHINING ,ALLOYS - Abstract
Nitinol alloy is widely utilized across various industries due to its special properties. In this paper, the compound effects of two kinds of energy fields on material removal rate (MRR), hole wall quality, machining accuracy, and recast layer in ultrasonic combined magnetic field assisted EDM (UV-MFEDM were studied and analyzed. In addition, the influence of magnetic field intensity on the efficiency and accuracy of micro-hole machining is analyzed systematically. The results show that the surface quality of the micropore is significantly improved, the MRR is increased by 31.6%, the taper of the micropore is reduced by nearly 30%, the overcut diameter is reduced by nearly 23%, the recast layer is more uniform and the thickness of the recast layer is reduced by nearly half. Appropriate magnetic field intensity proves beneficial for improving micro-hole machining efficiency while reducing both taper angle and diameter overcut of micro-holes. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
39. What to Expect (and What Not) from Dual-Energy CT Imaging Now and in the Future?
- Author
-
García-Figueiras, Roberto, Oleaga, Laura, Broncano, Jordi, Tardáguila, Gonzalo, Fernández-Pérez, Gabriel, Vañó, Eliseo, Santos-Armentia, Eloísa, Méndez, Ramiro, Luna, Antonio, and Baleato-González, Sandra
- Subjects
COMPUTER-assisted image analysis (Medicine) ,COMPUTED tomography ,ENERGY levels (Quantum mechanics) ,DUAL energy CT (Tomography) ,RADIOMICS - Abstract
Dual-energy CT (DECT) imaging has broadened the potential of CT imaging by offering multiple postprocessing datasets with a single acquisition at more than one energy level. DECT shows profound capabilities to improve diagnosis based on its superior material differentiation and its quantitative value. However, the potential of dual-energy imaging remains relatively untapped, possibly due to its intricate workflow and the intrinsic technical limitations of DECT. Knowing the clinical advantages of dual-energy imaging and recognizing its limitations and pitfalls is necessary for an appropriate clinical use. The aims of this paper are to review the physical and technical bases of DECT acquisition and analysis, to discuss the advantages and limitations of DECT in different clinical scenarios, to review the technical constraints in material labeling and quantification, and to evaluate the cutting-edge applications of DECT imaging, including artificial intelligence, qualitative and quantitative imaging biomarkers, and DECT-derived radiomics and radiogenomics. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
40. 串联战斗部级间隔爆结构的研究现状和发展趋势.
- Author
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龚宏杰, 余 瑞, 郭翔, 唐昌州, 王志昊, 王 琦, 姚莉, and 李忠友
- Abstract
Copyright of Journal of Ordnance Equipment Engineering is the property of Chongqing University of Technology 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
- 2024
- Full Text
- View/download PDF
41. Influence of Yarn and Fabric Properties on Mechanical Behavior of Polymer Materials and Its Retention over Time.
- Author
-
Salopek Čubrić, Ivana and Čubrić, Goran
- Subjects
- *
MECHANICAL behavior of materials , *YARN , *RF values (Chromatography) , *ABRASION resistance , *SURFACE roughness measurement , *SURFACE texture - Abstract
The mechanical properties of textile materials play a crucial role in determining their comfort, functionality, performance, safety, and aesthetics. Understanding and optimizing these properties is essential to meet consumer demands. Key aspects of mechanical properties, such as surface roughness, abrasion resistance, and compression, have a significant impact on the touch and durability of the material, as demonstrated by various research studies. This study focuses on analyzing the mechanical properties of materials produced of different polymer yarns and their changes under combined aging factors. The findings emphasize the significance of textile abrasion resistance and surface roughness measurement, particularly for aged materials. Although the use of recycled polyester yarn is sustainable and offers advantages such as higher tensile strength, the results have shown that the use of conventional polyester yarn is more advantageous overall as it has higher abrasion resistance, a smoother surface texture, and better elasticity retention after aging. The insights presented are vital for designing high-performance sportswear, which is crucial in today's competitive environment. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
42. Elaboration of an innovative plant biomaterial for its valorization in the treatment of wastewater.
- Author
-
Hassani, El Mokhtar Saoudi, Mehdaoui, Imane, Azzouni, Dounia, Mahmoud, Rachid, Taleb, Abdeslam, Wondmie, Gezahign Fentahun, Salamatullah, Ahmad Mohammad, Bourhia, Mohammed, Ibenmoussa, Samir, Taleb, Mustapha, and Rais, Zakia
- Subjects
WASTEWATER treatment ,POINTS of zero charge ,ALEPPO pine ,INDUSTRIAL wastes ,FOURIER transform infrared spectroscopy - Abstract
The global scientific community is deeply concerned about the deterioration of water quality resulting from the release of industrial effluents. This issue is of utmost importance as it serves to safeguard the environment and combat water pollution. The objective of this work is to elaborate a biomaterial of vegetable origin, based on the twigs of Aleppo pine, and to use it as an abundant and less expensive material for the treatment of wastewater. For this reason, the twigs were treated physically to get the powder called biomaterial FPA (Aleppo pine fiber), which was characterized by physicochemical, and spectroscopic analyses namely scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD). The crystallinity index of FPA was evaluated by the peak height method. The findings indicate that the FPA powder has an acidic nature, exhibiting a porous structure that promotes the adsorption and binding of molecules. Additionally, it has a zero charge point of 5.8 and a specific surface area of 384 m
2 .g−1 . It is primarily composed of hydroxyl, carboxyl, and amine functional groups, along with mineral compounds and organic compounds, including cellulose and other mineral elements such as Ca, Mg, Fe, Na, P, Al, K, Ni, and Mo. Combining these characteristics, FPA biomaterial has considerable potential for use as an effective adsorbent biomaterial for various wastewater pollutants. Its abundance and relatively low cost make it an attractive solution to the growing challenges of water pollution worldwide. [ABSTRACT FROM AUTHOR]- Published
- 2024
- Full Text
- View/download PDF
43. THE DESIGN INNOVATION WITH A BIOPHILIC APPROACH TO SUPPORT THE TEMPORARY CONVERSION OF STUDENT DORMITORY AS A COVID-19 ISOLATION SHELTER.
- Author
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Swasty, Wirania, Yuniati, Arnanti Primiana, Farida, Ariesa, Prabawa, Bijaksana, and Dewi, Andrieta Shintia
- Subjects
- *
ARCHITECTURAL design , *INTERIOR architecture , *COVID-19 , *INTERIOR decoration , *HOSPITAL beds - Abstract
The increasing number of Corona Virus Disease (COVID-19) cases in Bandung, Indonesia, in July 2021 resulted in a higher hospital bed occupancy rate. The conversion of two student dormitory buildings into isolation shelters is expected to accommodate COVID-19 patients who do not have rooms in the hospital. This requires specific planning and innovation, particularly for materials. This study has two objectives: first, to evaluate how long coronaviruses can remain active on different material surfaces. The data collection strategy was carried out through Systematic Review. The second research objective was to design a COVID-19 isolation room that uses materials that facilitate the healing process. Field surveys and traditional literature reviews were conducted for this purpose. This study found that the virus did not survive long on the surfaces of cotton and cardboard. Thus, the room design uses these materials and is considered a biophilic design. This study is expected to provide insights for academics and researchers in interior design and architecture regarding the knowledge of furniture materials that prevent viruses from surviving longer. In addition, it is expected to inspire interior designers to design rooms that can help the healing process using a biophilic approach. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
44. PUSAT UMKM SITU GINTUNG DENGAN PENERAPAN PENDEKATAN ARSITEKTUR TROPIS.
- Author
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Slameto, Purwanto Joko, Apriyanti, Rehulina, Nugroho, Agus, Haryadi, Bima, Saputra, Azas Pradana, and Putri, Nurul Maezita
- Abstract
Micro, Small and Medium Enterprises (MSMEs) have now developed well, where the natural resources in Indonesia and the development of the tourism sector have caused MSMEs to increase. In the development of MSMEs in Situ Gintung as an area that has tourism potential in the form of a situ, a building plan for the MSME center will be made that applies a tropical architecture approach to its design. Tropical architecture is architecture that adapts to climatic conditions. This research uses a qualitative method, collecting data and observing the needs of MSME players along with observing the site conditions in Situ Gintung. This research has produced a design for an MSME center that is adapted to site and climate conditions and tailored to the activities needed by MSME actors. The use of appropriate materials applied to the design such as secondary skin, the positioning of buildings that are adjusted to the climatic conditions on the site. From the results of the planning that has been done, it produces a design that can be used as the Situ Gintung MSME Center. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
45. La cultura monástica ante la naturaleza humana: análisis de La Regla de San Benito.
- Author
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Ginestra, Emmanuel
- Subjects
CHRISTIANITY ,SPHERES ,FRUIT ,MATERIAL culture - Abstract
Copyright of Revista Cultura Económica is the property of Pontificia Universidad Catolica Argentina 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
- 2024
- Full Text
- View/download PDF
46. Diyarbakır Meryem Ana Kilisesi'nin Yapım Teknikleri.
- Author
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SAYLIK, Sultan and DALKILIÇ, Neslihan
- Abstract
Copyright of Dicle University Journal of Engineering / Dicle Üniversitesi Mühendislik Dergisi is the property of Dicle Universitesi 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
- 2024
- Full Text
- View/download PDF
47. 清乾隆年间南京随园的玻璃 与空间的新尝试.
- Author
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白颖, 陈涛, and 姜春霖
- Subjects
QING dynasty, China, 1644-1912 ,MIRRORS ,CONSTRUCTION materials ,GARDEN design ,GARDENS - Abstract
Copyright of Architectural Journal / Jian Zhu Xue Bao is the property of Architectural Journal Editorial Office 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
- 2024
- Full Text
- View/download PDF
48. Literature Review: Hubungan Tingkat Pengetahuan, Motivasi dan Sikap terhadap Tindakan Tidak Aman (Unsafe Action) pada Tenaga Kerja.
- Author
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Putri, Marisa Adilla and Fatah, Mohammad Zainal
- Subjects
INTELLECT ,RISK-taking behavior ,ATTITUDE (Psychology) ,MOTIVATION (Psychology) ,WORK-related injuries ,SYSTEMATIC reviews ,MEDLINE ,PUBLIC health ,ONLINE information services ,INDUSTRIAL hygiene - Published
- 2024
- Full Text
- View/download PDF
49. 车身真空高压压铸技术研究.
- Author
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许天宇, 于江, 魏健, 盖宏键, 李天奇, and 蒋连轴
- Abstract
Copyright of Automobile Technology & Material is the property of Automobile Technology & Material Editorial Office 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
- 2024
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50. Effects of thermomechanical parameters on surface texture in filament materials extrusion: outlook and trends [version 1; peer review: 2 approved]
- Author
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John D. Kechagias
- Subjects
material ,extrusion ,parameters ,surface ,texture ,roughness ,eng ,Medicine ,Science - Abstract
The material extrusion process has been widely used to manufacture custom products. However, the surface texture varies due to the additive mechanism of the process, which depends on the layer height and surface orientation, resulting in varying average surface roughness values for inclined, flat and vertical surfaces. Different strand welding conditions result in non-uniform internal stresses, surface distortions, layer traces, weak bonding, non-uniform pores and material overflow. This paper comprehensively examines material extrusion process achievements in surface texture quality and studies and summarises the most influential processing parameters. Parameter effects are critically discussed for each topic; flat, inclined, and vertical surfaces. The results of this research help reduce post-processing.
- Published
- 2024
- Full Text
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