World Academy of Science, Engineering and Technology, International Journal of Chemical, Molecular, Nuclear, Materials and Metallurgical Engineering最新文献

{"title":"Carbon Nanotubes Based Porous Framework for Filtration Applications Using Industrial Grinding Waste","authors":"V. J. Pillewan, D. N. Raut, K. Patil, Dattaji K. Shinde","doi":"10.5281/zenodo.1130113","DOIUrl":"https://doi.org/10.5281/zenodo.1130113","url":null,"abstract":"Abstract—Forging, milling, turning, grinding and shaping etc. are the various industrial manufacturing processes which generate the metal waste. Grinding is extensively used in the finishing operation. The waste generated contains significant impurities apart from the metal particles. Due to these significant impurities, it becomes difficult to process and gets usually dumped in the landfills which create environmental problems. Therefore, it becomes essential to reuse metal waste to create value added products. Powder injection molding process is used for producing the porous metal matrix framework. This paper discusses the presented design of the porous framework to be used for the liquid filter application. Different parameters are optimized to obtain the better strength framework with variable porosity. Carbon nanotubes are used as reinforcing materials to enhance the strength of the metal matrix framework.","PeriodicalId":23701,"journal":{"name":"World Academy of Science, Engineering and Technology, International Journal of Chemical, Molecular, Nuclear, Materials and Metallurgical Engineering","volume":"167 1","pages":"202-208"},"PeriodicalIF":0.0,"publicationDate":"2017-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76902350","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Moderation in Temperature Dependence on Counter Frictional Coefficient and Prevention of Wear of C/C Composites by Synthesizing SiC around Surface and Internal Vacancies","authors":"Noboru Wakamoto, K. Obunai, K. Okubo, T. Fujii","doi":"10.1299/JSMEKANSAI.2017.92.M824","DOIUrl":"https://doi.org/10.1299/JSMEKANSAI.2017.92.M824","url":null,"abstract":"The aim of this study is to moderate the dependence of counter frictional coefficient on temperature between counter surfaces and to reduce the wear of C/C composites at low temperature. To modify the C/C composites, Silica (SiO2) powders were added into phenolic resin for carbon precursor. The preform plate of the precursor of C/C composites was prepared by conventional filament winding method. The C/C composites plates were obtained by carbonizing preform plate at 2200 °C under an argon atmosphere. At that time, the silicon carbides (SiC) were synthesized around the surfaces and the internal vacancies of the C/C composites. The frictional coefficient on the counter surfaces and specific wear volumes of the C/C composites were measured by our developed frictional test machine like pin-on disk type. The XRD indicated that SiC was synthesized in the body of C/C composite fabricated by current method. The results of friction test showed that coefficient of friction of unmodified C/C composites have temperature dependence when the test condition was changed. In contrast, frictional coefficient of the C/C composite modified with SiO2 powders was almost constant at about 0.27 when the temperature condition was changed from Room Temperature (RT) to 300 °C. The specific wear rate decreased from 25×10-6 mm2/N to 0.1×10-6 mm2/N. The observations of the surfaces after friction tests showed that the frictional surface of the modified C/C composites was covered with a film produced by the friction. This study found that synthesizing SiC around surface and internal vacancies of C/C composites was effective to moderate the dependence on the frictional coefficient and reduce to the abrasion of C/C composites. Keywords—C/C composites, frictional coefficient, SiC, wear.","PeriodicalId":23701,"journal":{"name":"World Academy of Science, Engineering and Technology, International Journal of Chemical, Molecular, Nuclear, Materials and Metallurgical Engineering","volume":"18 1","pages":"269-272"},"PeriodicalIF":0.0,"publicationDate":"2017-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84587151","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Condition Monitoring for Twin-Fluid Nozzles with Internal Mixing","authors":"C. Lanzerstorfer","doi":"10.5281/ZENODO.1129705","DOIUrl":"https://doi.org/10.5281/ZENODO.1129705","url":null,"abstract":"Liquid sprays of water are frequently used in air pollution control for gas cooling purposes and for gas cleaning. Twin-fluid nozzles with internal mixing are often used for these purposes because of the small size of the drops produced. In these nozzles the liquid is dispersed by compressed air or another pressurized gas. In high efficiency scrubbers for particle separation, several nozzles are operated in parallel because of the size of the cross section. In such scrubbers, the scrubbing water has to be re-circulated. Precipitation of some solid material can occur in the liquid circuit, caused by chemical reactions. When such precipitations are detached from the place of formation, they can partly or totally block the liquid flow to a nozzle. Due to the resulting unbalanced supply of the nozzles with water and gas, the efficiency of separation decreases. Thus, the nozzles have to be cleaned if a certain fraction of blockages is reached. The aim of this study was to provide a tool for continuously monitoring the status of the nozzles of a scrubber based on the available operation data (water flow, air flow, water pressure and air pressure). The difference between the air pressure and the water pressure is not well suited for this purpose, because the difference is quite small and therefore very exact calibration of the pressure measurement would be required. Therefore, an equation for the reference air flow of a nozzle at the actual water flow and operation pressure was derived. This flow can be compared with the actual air flow for assessment of the status of the nozzles.","PeriodicalId":23701,"journal":{"name":"World Academy of Science, Engineering and Technology, International Journal of Chemical, Molecular, Nuclear, Materials and Metallurgical Engineering","volume":"41 1","pages":"273-276"},"PeriodicalIF":0.0,"publicationDate":"2017-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80191400","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mosquito Repellent Finishing of Cotton Using Pepper Tree (Schinus molle) Seed Oil Extract","authors":"G. B. Tseghai, Tekalgn Gebremedhin Belay, Abrehaley Hagos Gebremariam","doi":"10.4172/2165-8064.1000394","DOIUrl":"https://doi.org/10.4172/2165-8064.1000394","url":null,"abstract":"Mosquito repellent materials are a standout amongst the most developing approaches to propel the textile field by giving the required attributes of protection against mosquitoes, particularly in tropical territories. These kinds of materials make sure the protection of individuals from the mosquitoes and the mosquito-borne diseases like intestinal sickness, filariasis and dengue fever. In this investigation Schinus molle (Pepper Tree) seed oil was utilized as mosquito repellent completion. The investigation concentrated on the entrance of mosquito repellent completion in textile applications just as nature-based options in contrast to commercial synthetic mosquito anti-agents in the market. Appropriate techniques and materials to accomplish mosquito repellency are talked about and brought up. Cotton sample was treated within the sight of acrylic copolymer cover for better obsession. Schinus molle Seed Oil demonstrated very inspiring repellency to mosquitoes without causing much impact on the mass properties of the texture like quality, solidifies and bowing length. Be that as it may, the absorption was altogether diminished. Mosquito Repellent Finishing of Cotton Using Pepper Tree (Schinus molle) Seed Oil Extract Granch Berhe Tsghai1,2*, Tekalgn Gebremedhin Belay3 and Abrehaley Hagos Gebremariam4 1Textile Engineering, Kombolcha Institute of Technology, Wollo University, Ethiopia 2Department of Materials, Textiles and Chemical Engineering, Ghent University, Belgium 3Textile Engineering, ADWA TVET College, Adwa, Ethiopia 4Textile Engineering, Almeda Textiles, Adwa, Ethiopia *Corresponding author: Granch Berhe Tseghai, Department of Materials, Textiles and Chemical Engineering, College of Engineering and Architecture, Ghent University, Belgium, Tel: +32465469895; E-mail: GranchBerhe.Tseghai@UGent.be Received February 28, 2019; Accepted March 30, 2019; Published April 08, 2019 Citation: Tsghai GB, Belay TG, Gebremariam AH (2019) Mosquito Repellent Finishing of Cotton Using Pepper Tree (Schinus molle) Seed Oil Extract. J Textile Sci Eng 9: 394. Copyright: © 2019 Tsghai GB, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.","PeriodicalId":23701,"journal":{"name":"World Academy of Science, Engineering and Technology, International Journal of Chemical, Molecular, Nuclear, Materials and Metallurgical Engineering","volume":"60 1","pages":"1"},"PeriodicalIF":0.0,"publicationDate":"2017-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76820232","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Implementing 3D Printed Structures as the Newest Textile Form","authors":"B. H. Gürcüm, Pinar Arslan, M. Yalçin","doi":"10.4172/2329-9568.S4-019","DOIUrl":"https://doi.org/10.4172/2329-9568.S4-019","url":null,"abstract":"Pioneering studies on the applications of 3D printing technology and additive manufacturing have been focusing on textile and clothing sector from the last two decades. Moreover, the creative momentum of fabric-like 3D printed structures has come to the point of transforming as for the newest form of textile applications after the advent of chain-mail like structures and flexible micro or meso structures created by SLS rapid manufacturing. Thus, the primary aim of this paper is to discuss the important properties of traditional fabrics that are to be expected of 3D printed structures namely physical properties like flexibility, bending and and drapability. The secondary aim of this study is to compare the mentioned physical properties of 6 3D printed samples regarding same geometry with different sizes, structures and rapid manufacturing methods.","PeriodicalId":23701,"journal":{"name":"World Academy of Science, Engineering and Technology, International Journal of Chemical, Molecular, Nuclear, Materials and Metallurgical Engineering","volume":"2 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2016-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72730869","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Equilibrium, Kinetic and Thermodynamic Studies of the Biosorption of Textile Dye (Yellow Bemacid) onto Brahea edulis","authors":"G. Henini, Y. Laidani, F. Souahi, A. Labbaci, S. Hanini","doi":"10.5281/ZENODO.1125901","DOIUrl":"https://doi.org/10.5281/ZENODO.1125901","url":null,"abstract":"Environmental contamination is a major problem being faced by the society today. Industrial, agricultural, and domestic wastes, due to the rapid development in the technology, are discharged in the several receivers. Generally, this discharge is directed to the nearest water sources such as rivers, lakes, and seas. While the rates of development and waste production are not likely to diminish, efforts to control and dispose of wastes are appropriately rising. Wastewaters from textile industries represent a serious problem all over the world. They contain different types of synthetic dyes which are known to be a major source of environmental pollution in terms of both the volume of dye discharged and the effluent composition. From an environmental point of view, the removal of synthetic dyes is of great concern. Among several chemical and physical methods, adsorption is a promising technique due to the ease of use and low cost compared to other applications in the process of discoloration, especially if the adsorbent is inexpensive and readily available. The focus of the present study was to assess the potentiality of Brahea edulis (BE) for the removal of synthetic dye Yellow bemacid (YB) from aqueous solutions. The results obtained here may transfer to other dyes with a similar chemical structure. Biosorption studies were carried out under various parameters such as mass adsorbent particle, pH, contact time, initial dye concentration, and temperature. The biosorption kinetic data of the material (BE) was tested by the pseudo first-order and the pseudo-second-order kinetic models. Thermodynamic parameters including the Gibbs free energy ΔG, enthalpy ΔH, and entropy ΔS have revealed that the adsorption of YB on the BE is feasible, spontaneous, and endothermic. The equilibrium data were analyzed by using Langmuir, Freundlich, Elovich, and Temkin isotherm models. The experimental results show that the percentage of biosorption increases with an increase in the biosorbent mass (0.25 g: 12 mg/g; 1.5 g: 47.44 mg/g). The maximum biosorption occurred at around pH value of 2 for the YB. The equilibrium uptake was increased with an increase in the initial dye concentration in solution (C o = 120 mg/l; q = 35.97 mg/g). Biosorption kinetic data were properly fitted with the pseudo-second-order kinetic model. The best fit was obtained by the Langmuir model with high correlation coefficient (R 2 > 0.998) and a maximum monolayer adsorption capacity of 35.97 mg/g for YB.","PeriodicalId":23701,"journal":{"name":"World Academy of Science, Engineering and Technology, International Journal of Chemical, Molecular, Nuclear, Materials and Metallurgical Engineering","volume":"57 1","pages":"931-937"},"PeriodicalIF":0.0,"publicationDate":"2016-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72960041","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Learning Materials of Atmospheric Pressure Plasma Process: Application in Wrinkle-Resistant Finishing of Cotton Fabric","authors":"C. Kan","doi":"10.5281/ZENODO.1124388","DOIUrl":"https://doi.org/10.5281/ZENODO.1124388","url":null,"abstract":"Cotton fibre is a commonly-used natural fibre because of its good fibre strength, high moisture absorption behaviour and minimal static problems. However, one of the main drawbacks of cotton fibre is wrinkling after washing, which is recently overcome by wrinkle-resistant treatment. 1,2,3,4-butanetetracarboxylic acid (BTCA) could improve the wrinkle-resistant properties of cotton fibre. Although the BTCA process is an effective method for wrinkle resistant application of cotton fabrics, reduced fabric strength was observed after treatment. Therefore, this paper would explore the use of atmospheric pressure plasma treatment under different discharge powers as a pretreatment process to enhance the application of BTCA process on cotton fabric without generating adverse effect. The aim of this study is to provide learning information to the users to know how the atmospheric pressure plasma treatment can be incorporated in textile finishing process with positive impact.","PeriodicalId":23701,"journal":{"name":"World Academy of Science, Engineering and Technology, International Journal of Chemical, Molecular, Nuclear, Materials and Metallurgical Engineering","volume":"51 1","pages":"606-609"},"PeriodicalIF":0.0,"publicationDate":"2016-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78646975","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Reaction to the Fire of a Composite Material the Base of Scrapes of Tires End Latex for Thermal Isolation","authors":"E. T. L. C. Ford, V. Vale, J. U. Mendes, R. Nascimento","doi":"10.5281/zenodo.1111803","DOIUrl":"https://doi.org/10.5281/zenodo.1111803","url":null,"abstract":"The great majority of the applications of thermal isolation in the strip of drops and averages temperatures (up to 200oC), it is made of materials aggressive nature, such an as glass wool, rock wool, polystyrene, EPS among others. Such materials, in spite of the effectiveness in the retention of the flow of heat, possess considerable cost and when discarded they are long years to be to decompose. In that context, trying to adapt the world politics the about of the preservation of the environment, a study began with intention of developing a material composite, with properties of thermal, originating from insulating industrial residues. In this research, the behavior of the composite was analyzed, as submitted the fire. For this, the reaction rehearsals were accomplished to the fire for the composites 2:1; 1:1; 1:2 and for the Latex, based in the \"con\" experiment in agreement with the norm ASTM - E 1334 - 90. As consequence, in function of the answers of the system was possible to be observed to the acting of each mixture proportion.","PeriodicalId":23701,"journal":{"name":"World Academy of Science, Engineering and Technology, International Journal of Chemical, Molecular, Nuclear, Materials and Metallurgical Engineering","volume":"27 1","pages":"780-786"},"PeriodicalIF":0.0,"publicationDate":"2016-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74063746","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Maximizing Performance of the Membranes Based on Quaternized Polysulfone/Polyvinil Alcohol for Biomedical Applications: Rheological Investigations","authors":"A. Filimon, R. Albu, E. Avram","doi":"10.5281/zenodo.1110916","DOIUrl":"https://doi.org/10.5281/zenodo.1110916","url":null,"abstract":"The rheological response of blends obtained from \u0000quaternized polysulfone and polyvinyl alcohol in N-methyl-2- \u0000pyrrolidone as against structural peculiarity of polymers from the \u0000blend, composition of polymer mixtures, as well as the types of \u0000interactions were investigated. Results show that the variation of \u0000polyvinyl alcohol composition in the studied system determines \u0000changes of the rheological properties, suggesting that the PVA acts as \u0000a plasticizer. Consequently, rheological behavior of complex system, \u0000described by the nonlinear flow curve, indicates the impact of \u0000polyvinil alcohol content to polysulfone solution, in order to facilitate \u0000the subsequently preparation of bioactive membranes.","PeriodicalId":23701,"journal":{"name":"World Academy of Science, Engineering and Technology, International Journal of Chemical, Molecular, Nuclear, Materials and Metallurgical Engineering","volume":"50 1","pages":"776-779"},"PeriodicalIF":0.0,"publicationDate":"2015-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81675005","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Rotary Entrainment in Two Phase Stratified Gas-Liquid Layers: An Experimental Study","authors":"Yagya Sharma, B. Rana, A. Das","doi":"10.16943/ptinsa/2016/v82/48401","DOIUrl":"https://doi.org/10.16943/ptinsa/2016/v82/48401","url":null,"abstract":"— Rotary entrainment is a phenomenon in which the interface of two immiscible fluids are subjected to external flux by means of rotation. Present work reports the experimental study on rotary motion of a horizontal cylinder between the interface of air and water to observe the penetration of gas inside the liquid. Experiments have been performed to establish entrainment of air mass in water alongside the cylindrical surface. The movement of tracer and seeded particles has been tracked to calculate the speed and path of the entrained air inside water. Simplified particle image velocimetry technique has been used to trace the movement of particles/tracers at the moment they are injected inside the entrainment zone and suspended beads have been used to replicate the particle movement with respect to time in order to determine the flow dynamics of the fluid along the cylinder. Present paper establishes a thorough experimental analysis of the rotary entrainment phenomenon between air and water keeping in interest the extent to which we can intermix the two and also to study its entrainment trajectories.","PeriodicalId":23701,"journal":{"name":"World Academy of Science, Engineering and Technology, International Journal of Chemical, Molecular, Nuclear, Materials and Metallurgical Engineering","volume":"67 1","pages":"1367-1372"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88317868","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}