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The magnetic porous magnesium oxide (m-MgO) was prepared with nano-ferric oxide (Fe3O4) as the core and MgCl2 as the magnesium source, and was used for adsorption of U(VI) in aqueous solution. The physicochemical properties of MgO and n-MgO were characterized by FT-R, XRD,VSM and Zeta potential. The effects of solution pH, temperature, and oscillation time on the adsorption of U(VI) by MgO and m-MgO were investigated. The results show that the optimal condemns for uranium adsorption by MgO and n-MgO are pH=3.5, adsorbent dosage of 10 mg, and oscillation time of 720 min. The adsorption process conforms to the pseudo-second-order kinetic model and the Sips isotherm adsorption model, with a theoretical adsorption capacity of 454.16 mg/g, and the increase of temperature is conducive to the spontaneous adsorption. Therefore, n-MgO is expected to be used to separate and recover uranium from radioactive wastewater. [ABSTRACT FROM AUTHOR]

Copyright of Inorganic Chemicals Industry is the property of Editorial Office of Inorganic Chemicals Industry 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.)

"Voidness" is a status on which no legal effect is exercised according to the law. Although this status is contrary to the rule in Islamic law, it has significant examples in Islamic law. An examination in jurisprudential and legal books shows that scholars of jurisprudence and law have tried to reduce the scope of this legal status and reduce its examples by creating institutions such as withdrawal of the contract, the principle of correctness and the theory of spiritual commonality. In this regard, according to the examples of correction of void contracts in Islamic law, we can reach a comprehensive and complete theory called "correction of void contracts", which on the one hand compared to similar comprehensive institutions and on the other hand It has far fewer problems than such institutions. Correction of a void contract means that a void contract is corrected by removing the invalid causes or changing and transforming the annulled elements of the contract.In this research, we intend to examine the aspects of this theory and to assess its validity in the balance of jurisprudence and law. The result shows that there is no serious problem in correcting a void contract from a jurisprudential and legal point of view, and this legal act can be considered as one of the legal theories along with other institutions limiting the scope of voidness.

Pitanje radnopravnog položaja direktora dugo privlači pažnju kako pravne teorije, tako i pravne prakse. Međutim, mnogi aspekti statusa direktora i dalje ostaju nerešeni. To je naročito karakteristično za njegov radnopravni položaj. Iz tog razloga, u radu su analizirana problemska pitanja pre svega u vezi sa angažovanjem direktora, a potom u vezi sa prestankom svojstva direktora i posledicama koje takav prestanak ima na socijalno-ekonomski položaj lica koje je vršilo funkciju direktora. Na kraju, sagledane su savremene tendencije u pogledu pojedinih klauzula koje su gotovo neizostavan deo sadržine ugovora kojim se uređuju međusobna prava, obaveze i odgovornosti između direktora i privrednog društva.

The question of the labor law position of directors has long attracted the attention of both legal theory and legal practice. However, many aspects of the status of directors still remain unresolved. This is particularly characteristic of his employment status. For this reason, the paper analyzed problematic issues, first of all, in connection with appointment a director, and then in connection with the removing director from the office and the consequences that such removal has on the social and economic position of the person who performed the function of the director. In the end, the modern tendencies with regard to individual clauses, which are an almost indispensable part of the content of the contract regulating the mutual rights, obligations and responsibilities between the director and the company, were reviewed. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Engineering (17264073) is the property of Republic of Iraq Ministry of Higher Education & Scientific Research (MOHESR) 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.)

Mangosteen peel from agricultural waste was treated with concentrated sulphuric acid, resulting in a carbonized mangosteen peel powder (CMPP). It was applied as a biosorbent to adsorb hair dye from an aqueous solution. The biosorbent was characterized by Scanning electron microscopy (SEM), Brunauer-Emmet-Teller (BET) analysis, and Fourier-transform-infrared (FT-IR) spectroscopy. Batch adsorption experiments were performed to evaluate the effects of adsorbent dosage, contact time, and initial pH on the adsorption capacity and the percentage of hair dye removal. Optimal conditions for hair dye decolorization were 90 min of contact time, 0.25 g biosorbent in 50 ml of aqueous solution, and initial pH of 7.69. With these conditions, the adsorption capacity (qe) was 25.25 mg/g, and the percentage removal of hair dye was 72.14%. The experimental data were demonstrated to well follow the presumption of the Freundlich isotherm and pseudo-second order kinetic models. The findings show that carbonized mangosteen peel can be utilized as a low-cost biosorbent for hair dye removal in aqueous solution. [ABSTRACT FROM AUTHOR]

Nesih konusu sahabe döneminden itibaren önemsenmiş ve dini doğru anlamanın bir ölçütü olarak değerlendirilmiştir. Bu sebeple ulema konuyu değişik boyutlarıyla inceleme ihtiyacını hissetmiştir. Söz konusu meseleyi farklı açılardan ele alan âlimlerimizden biri de, birçok alanda eser telif eden ve usulcü kişiliğiyle öne çıkan Tâcüddîn es-Sübkî’dir. Kendisi, Şâfiî mezhebine mensup olmakla beraber zaman zaman gelenekten farklı görüşler ileri sürmüş hatta bazı konularda dört mezhebin genel görüşüne muhalefet edebilmiştir. Onun çoğu âlimden farklı düşündüğü alanlardan biri de nesih meselesidir. Özellikle haber-i vahid ve kıyasın, Kitap ve mütevatir sünneti nesih edebileceği görüşü dikkat çekicidir. Çalışmamızda Tâcüddîn es-Sübkî’nin nesih konusuna yaklaşımını ve konuyla ilgili genel görüşe muhalif görüşlerini tespit ve tahlil etmeye çalışacağız

Copyright of Ma'alim Quran Sunnah is the property of Universiti Sains Islam Malaysia (USIM) 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.)

The relevance of the research is caused by the need to expand the scope of technology with underground leaching of metals in blocks, as a condition of satisfying natural growing needs of industry for raw materials. The main aim of the research is to substantiate technical ability and economic feasibility of metal extraction from stockpiles, mainly polymetallic ores, non-conforming to traditional technologies for metal production, but suitable for application of innovative technologies of field development. Research methods: semi-industrial tests in underground mining and laboratory researches in percolators with data processing based on multiple regression and correlation analysis and implementation of algorithms for interpretation of the experimental results, analysis of best achievements according to practice, the patent data and publications. Results. The authors have determined new patterns of technological processes of metal extraction from ores by underground leaching. It is proved that the comprehensive improvement of technological processes of development system with underground leaching allows the new technology to compete with the conventional one, especially in the cases where traditional technologies are limited by the capabilities of today's technologies for processing metal ores. Conclusions. The technology with metal underground leaching from rock ore is not a sufficiently used reserve for increasing metal production, first of all scarce and rare, including off-grade ores. The results of pilot tests of technological processes of underground leaching and theoretical calculations reveal sufficient correlation of practice and theory that indicates the possibility of controlling the course of obtaining metals with the adjustment of technology in the course of its development. Underground leaching of poor and off-balance ores will be developed as stocks in convenient regions of the Earth in the near future satisfying both economic and environmental components of mining humanization.

【Objective】The optimal deproteinized method from crude polysaccharides of Gnaphalium affine was research and development basis. 【Method】Comprehensive evaluation was established by deproteinized rate and crude polysaccharides rate as indexes. Through contrastive studied deproteinized efficiency on acid precipitation method, alkaline precipitation method, lead acetate method, trichloroacetic acid method, Sevag method and protease method. 【Result】The results showed that lead acetate method, trichloacetic acid method, papain-trichloroacetic acid method were better than others in deproteinization process. Protein removal rate were 97.55 %,81.97 %,100.00 %, respectively. Crude polysaccharides retained rate were 12.17 %,5.89 %,52.71 %,respectively.【Conclusion】According to comprehensive index, the descending orders of deproteinized efficiency were lead acetate method, trichloroacetic acid method and papain trichloroacetic acid method. [ABSTRACT FROM AUTHOR]

BACKGROUND: This work focuses on removing metal ions (Fe3+, Cu2+, and Zn2+) from aqueous solutions and real wastewater by underwater plasma. RESULTS: Results show that the joint presence of Fe3+, Cu2+, and Zn2+ are needed for effective precipitation of these ions from aqueous solutions. The short‐time underwater plasma treatment leads to more effective removal of metal ions from real wastewater compared to treatment facilities of a factory. CONCLUSIONS: Removing metal ions from aqueous solutions of their mixture by underwater plasma occurs via formation of non‐dissolved substances on the base of metal oxide/hydroxide. Efficient removal of metal ions from real wastewater allows the creation of a prototype setup as one of the blocks of treatment facilities at a chemical factory. © 2019 Society of Chemical Industry [ABSTRACT FROM AUTHOR]

Abrogation was considered important from the sahabi period and was evaluated as a criterion to understand the religion correctly. So, Ulema (scholar) needed to examine this topic from different aspects. One of the ulema who takes the topic from different aspects is Tâcüddîn es_Sübkî who compiled many works in many fields and became prominent with his methodologist personality. He was belong to the shafii sectarian, and also from time to time he asserted different views from tradition, and even in some topics he opposed to the four well-known secterians' general views. One of the fields that he thought different from most scholars is abrogation matter. Especially, the view about haber-i vahid and comparision can abrogate the scripture and mutawatir sunnah is remarkable. In our study, we try to determine and analyse Tâcüddîn es_Sübkî's approach to the topic and his opposed views to the general view. [ABSTRACT FROM AUTHOR]

Presently the X-ray separation is used not only for research program, but it is also elaborated and applied for different sectors of economy. The seeds as biological objects that possess the complicated microstructure are very difficult to be exanimated by x-ray technology. The application of x-rays and further elaboration of optical separators, principle of action, basic specifications, way of their use and their efficiency was shown in the article. The x-ray separator may distinguish all hidden seed defects as it was described by a programmer, where owing to the use of the optical separating block in visual range it is possible to add some more details as a shape, brightness and a color of object surface being exanimated. The elaboration of such separation equipment is scientifically hard work requiring time and expenses. Last year researchers of ‘LETI’ developed the working model of industrial x-ray separator for examination of grains and nuts in different crops. This model was made on the basis of photoseparator F-5 manufactured at OAO ‘Voronezhselmash’. The instrument state and its mechanism operation are highlighted on monitor. In the regime of processing (separation and examination) of each controlled batch, the passport is produced with following information on identification code, time of material receiving, time of test passed, number of grains or seeds tested. The code of receiver of material is given to each of established characteristics when working the regime of separation, determination of number of objects with characteristics tested and number of unidentified objects. The application of x-ray separators constructed on the basis of photoseparator F-5 enables to carry out the complex estimation on seed quality and separation in only instrument with the development of electronic protocol with many characteristics.

Copyright of Hydrometallurgy of China is the property of Hydrometallurgy of China 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.)

Green algae Cladophora aegagropila, present in cooling water of thermal power plants, causes many problems and complications, especially during summer. However, algae and its metabolites are rarely eliminated by common removal methods. In this work, the elimination efficiency of electrochemically prepared potassium ferrate(VI) on algae from cooling water was investigated. The influence of experimental parameters, such as Fe(VI) dosage, application time, pH of the system, temperature and hydrodynamics of the solution on removal efficiency, was optimized. This study demonstrates that algae C. aegagropila can be effectively removed from cooling water by ferrate. Application of ferrate(VI) at the optimized dosage and under the suitable conditions (temperature, pH) leads to 100% removal of green algae Cladophora from the system. Environmentally friendly reduction products (Fe(III)) and coagulation properties favour the application of ferrate for the treatment of water contaminated with studied microorganisms compared to other methods such as chlorination and use of permanganate, where harmful products are produced. [ABSTRACT FROM AUTHOR]

The environmental applications of graphene oxide and β-cyclodextrin (β-CD) have attracted great attention since their first discovery. Novel nanocomposites were successfully prepared by using an esterification reaction between β-cyclodextrin/γ-(2,3-epoxypropoxy) propyl trimethoxysilane grafted graphene oxide (β-CD/GPTMS/GO). The β-CD/GPTMS/GO nanocomposites were used to remove the Cu2+ from aqueous solutions. The characteristics of β-CD/GPTMS/GO were detected by scanning electron microscopy (SEM), Fourier transform infrared, XRD, TG and EDX. The dispersibility of graphene oxide was excellent due to the addition of β-CD. The adsorption isotherms data obtained at the optimum pH 7 were fitted by Langmuir isotherm model. The excellent adsorption properties of β-CD/GPTMS/GO for Cu2+ ions could attribute to the apolar cavity structure of β-CD, the high surface area and abundant functional groups on the surface of GO. The adsorption patterns of β-CD/GPTMS/GO were electrostatic attraction, formation of host-guest inclusion complexes and the ion exchange adsorption. The efficient adsorption of β-CD/GPTMS/GO for Cu2+ ions suggested that these novel nanocomposites may be ideal candidates for removing other cation pollutants from waste water. [ABSTRACT FROM AUTHOR]

Syntheses of biopolymer (Alginic acid) was made by reaction of sodium alginate with hydrochloric acid (concs) in aqueous ethanol with ratio (30:70) as adsorption material to remove vanadium from crude oil directly during the purification. Effect of come factors on adsorption steps by this acid were studied such of time, pH value and concentration. The capability of this biopolymer for adsorption (in aqueous solution) was known form previous study , and this property become useful to help this work for removing of vanadium from crude oil as take place in refinery. The results also showed that the concentration of Vanadium was decreases with the greater weight of the polymer additive, where focus was before Added 75.0 ppm, while the 67.5 ppm , when adding 0.025g, of polymer. And became (18.75ppm) after the addition of 0.05g of the polymer, Thus results show that whenever the greater weight of the polymer, decreased the concentration of Vanadium.

In this article results of research on removal of the lead from industrial Cu-Pb-Fe alloy by means of argon barbotage are presented. The examinations was performed on an industrial alloy from the “Glogow II” Copperworks. As a basic research equipment a pipe resistance furnace enabling heating of a sample up to 1773 K temperature was used. All researches were conducted at 1473 K, 1523 K, 1573 K temperature and with gas flow 5,55×10-6, 6,94×10-6, 8,33×10-6, 9,72×10-6 m3/s.

Oxidative desulfurization process consist of two stage: 1.Reaction Stage : catalyst, fuel oil and chemicals (peroxide,..) mixing and production of sulfones, 2. Extraction stage :sulfones compounds and treated fuel oil separation section by using extractor solvent. Pressure in reaction was atmospheric and constant and a stirrer was utilized to help further mixing with speed of 750 RPM. The experimental tests showed following results: sulfur removal procedure has been carried out efficiently with ODS method, sulfur amount from high level of 2.75%w was decreased to amount of 1.14% w and chemical mixing of H2O2/acetic acid has better effect in comparision with chemical mixing of H2O2/ formic acid for desulfurization of heavy fuel. Oxidation reaction was optimised by changing the molar ratio of oxidant and catalyst to sulfur amount in the range of 5-10. In this research the effect of parameters like acid and oxidant amounts and increasing the temperature were investigated in desulfurization reaction. Based on experimental tests, which was carried out on fuel oil of Tehran refinery, it has indicated that the oxidation amount of sulfur compounds has been increased with the rise in the temperature till 60°C. [ABSTRACT FROM AUTHOR]

We developed a web-based learning system for healthcare workers to learn the skills for removing personal protective equipment for highly infectious diseases. The system was implemented on a trial basis and healthcare workers evaluated its usability and their motivation to learn. Usability was similar to that of typical systems. Motivation scores were high, indicating confidence and satisfaction with the system. [ABSTRACT FROM AUTHOR]

Analytical techniques as strong, precise, and expensive are necessary for monitoring food and water safety for contaminants, microorganisms, and allergies that might be harmful if used. Sudan dyes are commonly utilized as an ingredient in food dye substances and a variety of industrial items. These colors are classified as three carcinogens and are linked to liver and bladder cancers. They are not authorized for human consumption by the International Agency for Research on Cancer (IARC) and are not permitted to be used by the Food Standards Agency or the European Union. This article describes electrochemical dye analysis beside the numerous electrochemical sensors utilized to identify these dyes as a food colorant and water. As a result, the qualities, chemistry, and toxicity of dyes as food colorants and industrial goods in Sudan have been investigated in this study. Sudan dyes have been thoroughly studied, and many electrochemical sensors have been developed to define and monitor these dyes in food colorants. As a result, current electrochemical sensors have been found to be neither mass-production nor cost-effective. Mostly, the synthesis of high-performance materials needs high knowledge, and the production of electrode surfaces is remained difficult due to labor-intensive and time-consuming activities. [ABSTRACT FROM AUTHOR]

Removing the spandrel wall will decrease the seismic capacity of masonry wall, and increase the failure risk of the structure under earthquake. In order to investigate the influence of removing the spandrel wall on the seismic performance of masonry wall, the low cyclic reversed loading tests of five full scale masonry walls were performed. The main failure process and failure mode of the walls were introduced and the seismic performance including bearing capacity, deformation and lateral stiffness were analyzed. Test results show that; the height to width ratio of the wall with spandrel wall removed becomes larger; the rotational deformation in the total deformation proportion increases, and the failure pattern may be changed from horizontal shear failure to other different forms. The bearing capacity and lateral stiffness of the walls with both side of spandrel walls removed are lower than those of prototype wall to a certain extent. The seismic behavior of the specimens with dismantled one side is basically the same as that of prototype wall. The results provide test data and reference for the further study about the overall seismic performance of the masonry structure removing spandrel wall. [ABSTRACT FROM AUTHOR]

Background: Patients with urinary tract infection (UTI) face increased risks of disease deterioration, prolonged hospitalization stays, higher healthcare costs, and mortality. Thus, it is important to select the proper time to remove unnecessary catheterization in order to reduce UTI incidence. Purpose: This study compares the time-of-day effects of urinary catheter removal on patient void times, void volumes, re-catheterization rates, urinary tract infection rates, symptom distress levels, and self-perception then analyzes their influential factors. Methods: Using a quasi-experiment study design, patients were distributed into two urinary catheter removal time groups. The day group included 43 and the night group included 41 participants. Data related to urinary catheter removal and patient perceptions were collected and analyzed using descriptive and inferential statistics. Results: The night group had longer void times (251.3 vs. 177.9 mins, p < .05) and a higher rate of recatheterization (24.4% vs. 7.0%, p < .05) than the day group. There were no differences in voided volume and UTI rate between the two groups. The odds ratio of re-catheterization rate was 1.06 for per urinary day. After removing urethral catheterization in the two groups, the disturbance syndrome for all patients went into gradual remission, their negative perceptions were significantly reduced, and positive emotions such as comfort, relaxation and pleasure were significantly improved (p < .05). Conclusion: Catheter removal timing did not result in significant differences in inter-group void volumes or UTI rates. However, the night group had a higher re-catheterization rate. Increased number of urethral catheterization days also correlated with increased re-catheterization rate. The removal of the urinary catheter reduced syndrome disturbance and improved self-perception. Therefore, we suggest that the urinary catheter removal order be implemented as soon as possible without considering the potential different effects of day / nighttime removal in order to maximize patient comfort and sleeping quality. [ABSTRACT FROM AUTHOR]

We have removed the ZrO layer formed on a Zry sample after heat treatment using a simple process known as abrasive blasting or air impelled glass abrasion. Scanning electron microscopy, energy dispersive spectrometry and optical microscopy were the analysis techniques employed to observe the surface after abrasive blasting and the incorporation of glass spheres on the layer that might produce alterations on the chemical properties of the Zry. [ABSTRACT FROM AUTHOR]

Abstract: Adsorption with activated carbons (ACs) has been recently reported as an affordable environmental application to remove and recover ionic liquids (ILs) from water streams. In this work, an extensive analysis of the separation of imidazolium-based ILs from aqueous solution, based on adsorption equilibrium experiments at 308K, has been performed. The study includes five commercial and four modified ACs, with a wide variety of structural and chemical properties, a carbon black and also two inorganic adsorbents. The materials tested were characterized by several techniques in order to establish the role of the porous structure and chemical surface on their adsorption capacities. We found that the microporous ACs with low concentration of polar groups in their surface are the best candidates for adsorption of hydrophobic ILs, reaching uptakes of up to 1g of IL per gram of adsorbent. The influence of both cation and anion on the adsorption process was analyzed from the adsorption isotherms of 27 different ILs. The dependence of the adsorption uptake with the chemical structure of the ILs was explained by mean of the quantum-chemical COSMO-RS model, which provides information of the intermolecular interactions between the IL adsorbate and the AC adsorbent. As a result, some insight into the adsorbent modifications needed for improving of the adsorption of specific ILs were achieved and successfully applied to the adsorption of hydrophilic ILs by oxidized ACs. In addition, a procedure for regenerating the exhausted adsorbent and recovering the IL by acetone extraction was validated upon successive adsorption–desorption cycles with two commercial ACs. Finally, the acetone was separated by atmospheric distillation, being the IL recovered without structural modification. [Copyright &y& Elsevier]

Abstract: Aiming at failure of closure segment in a prestressed concrete cable-stayed bridge, a strengthening technology, namely replacing the closure segment, was firstly put forward. But removing the old closure segment was a process of release of internal force and had great risk. So the structural safety possibly induced by removing must be analyzed and confirmed. Based on FEM and summary of engineering experience, the construction stages for removing the old closure segment were simulated, and then some analysis relevant to safety, including thermal effect, dynamic characteristics and global stability of the whole bridge structure, were systematically presented. According to these analysis results, corresponding prevention and control measures were provided to ensure construction safety. Studies showed that, variation range of its structural state between before and after removing is not obvious, and its dynamic characteristics changed little after removing. In addition, structural instability could not be induced by removing, but for the sake of improving construction safety reliability, necessary safety prevention and control measures were indispensable. Analysis on safety of removing the old closure segment constituted the important part of the strengthening technology of replacing the closure segment, and became the theoretical basis of removing partial structural members for existing bridges. [Copyright &y& Elsevier]

Copyright of Annals of 'Constantin Brancusi' University of Targu-Jiu. Engineering Series / Analele Universităţii Constantin Brâncuşi din Târgu-Jiu. Seria Inginerie is the property of Universitatea Constantin Brancusi din Targu-Jiu 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.)

Two strains of Pseudomonas aeruginosa were isolated from crude oil of Isfahan oil refinery and used in a lab scale fermenter for removal of floating crude oil pollution from water. Maximum stable removal efficiency of 92% was reached despite the stepwise increase in the culture medium crude oil concentration from 0.1 g/l to 0.3 g/l and maximum biodegradation rate of 98.6 mg/l h was obtained. During 91 d mixed liquid suspended solid (MLSS) changed between 4000 and 8000 mg/l and sludge volume index (SVI) changed between 20 and 90 mg/l. The performance was investigated during a 91 d continuous operation of a fermenter which was intermittently fed with oil-polluted water. It seems biodegradation of this mixed culture is high removal efficiency (92%) in low time (7.5 d). [ABSTRACT FROM AUTHOR]

A new method for removing high molecular organic deposits left by crude oil and natural gas with the help of a new patented preparation. [ABSTRACT FROM AUTHOR]

Abstract: This paper presents a new method of wet releasing SU-8 structures using very thin Omnicoat™ as sacrificial layer and NMD-3 developer as releasing solution. Four-inch sized SU-8 structures with different pattern and thickness of 65μm have been successfully released from silicon substrate by this method. Experiments show that Omnicoat™ layer is very helpful to strip SU-8 molds in which metal structures are electroplated. SU-8 can be removed directly using remover if there is an Omnicoat™ layer between the substrate and SU-8 and the electroplated structures is with large dimension. In the case of electroplated structures with small feature size, SU-8 can be removed by combining wet stripping and plasma etching. Nickel micro coils with linewidth of 10μm and aspect ratio of 4.1 have been fabricated. The analysis about the influence of Omnicoat™ layer’s thickness on integrity of SU-8 micro coils is also given in our work. [Copyright &y& Elsevier]

In this article results of research on removal of the lead from industrial Cu-Pb-Fe alloy by means of argon barbotage are presented. The examinations was performed on an industrial alloy from the "Glogow II" Copperworks. As a basic research equipment a pipe resistance furnace enabling heating of a sample up to 1773 K temperature was used. All researches were conducted at 1473 K, 1523 K, 1573 K temperature and with gas flow 5,55×10-6, 6,94×10-6, 8,33×10-6, 9,72×10-6 m3/s. [ABSTRACT FROM AUTHOR]