{"title":"Predictive Analysis of the Electromagnetic Shields Effectiveness","authors":"R. Aileni, Ema Stroe, C. Morari","doi":"10.24264/icams-2022.i.1","DOIUrl":"https://doi.org/10.24264/icams-2022.i.1","url":null,"abstract":"This paper presents a predictive analysis of the electromagnetic attenuation effectiveness for conductive textile materials obtained by coating with polypyrrole, conductive paste-based aluminum, nickel, copper, silver, and graphene oxide. The predictive analysis was provided by the multiple regression modeling of the effectiveness of electromagnetic attenuation at 5 MHz, respective 700 MHz frequency depending on independent variables such as mass (M [g/m2]) and thickness (δ [mm]) of the fabric coated with the conductive paste by screen printing. Usually, flexible electromagnetic shields, based on textile materials, are necessary for shielding electric fields, representing a potential reference for cables and filters and ensuring the return path of parasitic currents. Protection against the harmful action of electromagnetic fields can be achieved using textile screens based on conductive coatings that ensure the reflection of the waves when they meet the surface, respectively, the absorption of the waves. In general, the wave representing the incident electromagnetic field propagates in the direction of the screen, undergoing a reflection at contact with the screen, then repeated internal reflections inside it, part of the wave being transmitted into the protected space.","PeriodicalId":196278,"journal":{"name":"Proceedings of the 9th International Conference on Advanced Materials and Systems","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123724659","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}
Mirela Pantazi-Băjenaru, M. Georgescu, L. Alexandrescu, D. Gurau
{"title":"Making Footwear Based on Circular Economy - REWEART","authors":"Mirela Pantazi-Băjenaru, M. Georgescu, L. Alexandrescu, D. Gurau","doi":"10.24264/icams-2022.iv.10","DOIUrl":"https://doi.org/10.24264/icams-2022.iv.10","url":null,"abstract":"The REWEART project will help meet the objectives of the EU’s Environmental Policy. What is more, it will contribute to the implementation of EU commitments under UNFCCC Kyoto Protocol, EU GHG emission reduction commitments in 2020 under the Climate and Energy Package, Green Deal and Fashion Pact. Following the objectives of resource and energy reduction as well as waste cuts all along the product life cycle, the main ambition of REWEART project is to refer to natural ecosystems, which produces no waste, and uses only renewable resources (solar energy and water). REWEART project aims at generalising the use of proactive waste management at design stage and at anticipating and improving reactive management. The project offers us an exceptional opportunity to conceive a new business model and related services and tools, enabling, at design stage, the selection of the most suitable materials and processes to create a new footwear product 100% recycled, organic, as working hypothesis. A cost effectiveness evaluation has been made possible to make affordable new products available to the market, while a concurrent environmental impact analysis ensures that the new solutions are positive for the environment. The project results have been assessed against a set of performance yardsticks addressing environmental, social and economic impact. This paper presents the activities carried out within the LIFE REWEART project during its entire period of development.","PeriodicalId":196278,"journal":{"name":"Proceedings of the 9th International Conference on Advanced Materials and Systems","volume":"117 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128482934","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}
I. Radulescu, E. Visileanu, R. Scarlat, M. Grosu, A. Dias, B. Malengier, Z. Stjepanovic, M. Blaga, R. Polanský
{"title":"Impact of Intensive Study Programs on Higher Education Students in the Field of Design and Modelling of Textile Materials","authors":"I. Radulescu, E. Visileanu, R. Scarlat, M. Grosu, A. Dias, B. Malengier, Z. Stjepanovic, M. Blaga, R. Polanský","doi":"10.24264/icams-2022.vi.3","DOIUrl":"https://doi.org/10.24264/icams-2022.vi.3","url":null,"abstract":"The knowledge of software for design and modelling of textiles offers a competitive advantage within the world of work for young textile creatives. The Erasmus+ project OptimTex – “Software tools for textile creatives” has created a large set of educational materials and the corresponding e-learning resources in this competitive domain. Six educational modules, one Moodle e-learning platform with courses in six national languages, one e-learning instrument for quick access to the content and one glossary of terms were implemented during the two-year’s project 2020-2022 (www.optimtex.eu). Two Intensive Study Programs (ISPs) of five days were already organized by the project’s partners: one virtual ISP with the host Technical University of Iasi and one mobility ISP with the host University of Maribor. A total number of 27 students and 15 lecturers participated in the first ISP and a total number of 17 students and 12 lecturers participated in the second ISP. The six modules for Design and Modelling of woven structures, knitted structures, virtual prototyping of clothing, embroidered e-textiles, design of experiments, and TechTransfer had a high impact on the students. The impact was measured by feedback questionnaires and the interest in e-learning resources by the number of accesses (www.advan2tex.eu/portal/). This paper presents the impact of the educational materials on Higher Education students in relation to the envisaged objectives of the project.","PeriodicalId":196278,"journal":{"name":"Proceedings of the 9th International Conference on Advanced Materials and Systems","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129336923","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}
O. Niculescu, E. Badea, Ilaria Quaratesi, R. Constantinescu, D. Gurau
{"title":"Materials for Surface Design and Finishing for Contemporary Footwear – Part 1","authors":"O. Niculescu, E. Badea, Ilaria Quaratesi, R. Constantinescu, D. Gurau","doi":"10.24264/icams-2022.v.5","DOIUrl":"https://doi.org/10.24264/icams-2022.v.5","url":null,"abstract":"The leather industry creates a product that is both natural and long lasting. Leather is unique in its ability to combine beauty, comfort and practicality. Finishing, the last operation in natural leather processing, determines the appearance and value of the finished product, and has the purpose of embellishment, providing lustre and pleasant feel, covering flaws and forming a surface layer that protects leather during wear while improving resistance to external factors. The quality of the pigment pastes used in the composition of the leather surface finishing films influences some of the physical-mechanical, technological and aesthetic properties of the finished products. The materials for finishing – pigment pastes with aesthetic effect – were obtained based on dioxide-titanium, metal pigment-aluminum, polymeric binder, lauryl alcohol ethoxylated with 7 moles of ethylene oxide, waxes and plasticizers and were characterized by physical-chemical, microscopical, spectral and rheological analyses. Pigment pastes with metallic effect were used in combination with film forming acrylic and polyurethane polymers, with high resistance to light and aging for finishing natural leathers, with applications in creative industries (modern footwear).","PeriodicalId":196278,"journal":{"name":"Proceedings of the 9th International Conference on Advanced Materials and Systems","volume":"91 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129600536","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":"Review of Green Methods of Synthesis of Silver Nanoparticles","authors":"O. Shydlovska, Yevhen Kharchenko","doi":"10.24264/icams-2022.i.8","DOIUrl":"https://doi.org/10.24264/icams-2022.i.8","url":null,"abstract":"Green synthesis of metal nanoparticles is a very promising area of research. Silver nanoparticles are the most interesting type of nanoparticle in nanotechnology because they have varied properties, such as antibacterial, antioxidant, and antibiofilm forming properties. This review aims to establish which of the most common approaches for the biological synthesis of nanoparticles is the best. In this work, the methods of synthesis of silver nanoparticles using plant extracts, bacteria, and yeast are considered. Each of these methods has its advantages and disadvantages. The most common method of synthesis of silver nanoparticles is the method using plant extracts, however, stabilizing substances from plant extracts have their own direct biological activity, which can be both enhanced and suppressed by silver nanoparticles. Green synthesis of nanoparticles thanks to microorganisms makes it possible to use a wide range of bacterial strains, but it is important to remember of the pathogenicity of the strains and their danger to humans. From this perspective, the use of yeast for the synthesis of silver nanoparticles is the most promising method, as it allows obtaining a large amount of nanomaterial. The synthesis, thanks to yeast method, allows us to control the size and shape of the nanoparticles. Nanoparticles obtained from yeast lysates have effective antibacterial and antifilm-forming activity.","PeriodicalId":196278,"journal":{"name":"Proceedings of the 9th International Conference on Advanced Materials and Systems","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126830102","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}
M. Georgescu, M. Sönmez, L. Alexandrescu, Mihaela Nițuică (Vilsan), M. Stelescu, D. Gurau, Denis-Andrei Drușan, Ana-Maria Ciobanu, C. Chelaru
{"title":"Low Carbon Footprint Composite Based on Chloroprene Rubber and Elastomer Waste","authors":"M. Georgescu, M. Sönmez, L. Alexandrescu, Mihaela Nițuică (Vilsan), M. Stelescu, D. Gurau, Denis-Andrei Drușan, Ana-Maria Ciobanu, C. Chelaru","doi":"10.24264/icams-2022.iv.6","DOIUrl":"https://doi.org/10.24264/icams-2022.iv.6","url":null,"abstract":"The aim of the paper consists in the treatment of post-consumer and technological waste of elastomers and plastomers, according to the 4R principle (reduction, reuse, recycling and recovery) by transforming them into raw materials with added value and integrating them into different industries. This will lead to the developing of new processing concepts regarding obtaining new biodegradable composite materials, with various waste contents (10-50 wt%). The composite is based on chloroprene rubber, and added post-consumer recycled rubber particles, with size of 45 mesh, eco-reinforcing material, and active fillers, plasticizers, vulcanizing agents, antioxidants. In order to enhance the compatibility and their level of interaction, the elastomer waste was finely ground (cryogenic mill) and functionalized with potassium oleate. Rubber waste acts as a filling material which leads to lower carbon footprint of the composite and lower mass. Tensile, tear strength, elasticity, hardness, abrasion resistance, melt flow index and morphological study (FT-IR) of those composites were examined in order to determine their viability in various application areas. The transformation of waste (cryogenically ground, and functionalized) into new products with added value will lead to remarkable improvements in the life cycle of raw materials and the sustainable use of this waste, contributing to increasing sustainability, improving eco-efficiency and economic efficiency and reducing the carbon footprint on the environment.","PeriodicalId":196278,"journal":{"name":"Proceedings of the 9th International Conference on Advanced Materials and Systems","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131154254","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}
Fulya Adigüzel, Cemile Tosun, Gökhan Zengin, Arife Candaş Adigüzel Zengin
{"title":"Grain Characteristics Comparison of Different Types of Shoe Upper Leathers","authors":"Fulya Adigüzel, Cemile Tosun, Gökhan Zengin, Arife Candaş Adigüzel Zengin","doi":"10.24264/icams-2022.iii.1","DOIUrl":"https://doi.org/10.24264/icams-2022.iii.1","url":null,"abstract":"In this study, it was aimed to comparatively investigate the grain properties of shoe upper leathers produced for different purposes. Thus, six different types of shoe upper leather (cracked, antique, patent, nappa, nubuck, printed) were provided from three different footwear companies. The tensile strength and elongation at break (TS EN ISO 3376), single and double edge tear strength (TS EN ISO 3377-1, TS EN ISO 3377-2), cracking and bursting resistance (TS 4137 EN ISO 3378, TS EN ISO 3379), flex resistance (TS EN ISO 5402-1) as well as dry and wet rubbing fastness tests (TS EN ISO 11640) were applied to leathers that have similar thicknesses. The results of the study gave information about the physical strength and product performances of different upper leather types. The data were evaluated comparatively and the effects of shoe upper leather types on quality and performance were evaluated.","PeriodicalId":196278,"journal":{"name":"Proceedings of the 9th International Conference on Advanced Materials and Systems","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133958374","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}
Ilyos Ismatullaev, J. Ulugmuratov, Avaz Kenjaev, K. Begaliev, F. Akyüz
{"title":"Investigation of the Process of Soaking when Processing Ostrich Skins","authors":"Ilyos Ismatullaev, J. Ulugmuratov, Avaz Kenjaev, K. Begaliev, F. Akyüz","doi":"10.24264/icams-2022.iii.12","DOIUrl":"https://doi.org/10.24264/icams-2022.iii.12","url":null,"abstract":"In this work, the results of a study of the process of soaking in the processing of exotic leather raw materials of ostrich skins were carried out. In order to reduce the negative impact of wastewater from the tanning industry on the environment and to accelerate the soaking process, an enzyme preparation of microbial origin Letan SE2 and a surfactant CH-22C, which meets the requirements of the European regulations REACH and ECHA, were used. When these chemicals are used in the soaking process, mucopolysaccharides and non-collagen proteins are intensively removed from the interfiber space, the moisture content in the skin tissue of the ostrich skin increases, and uniform soaking in thickness and area is ensured. Intensive and correct soaking process improves the quality of subsequent processing of the ostrich skin. The paper shows the possibility of carrying out the soaking process using environmentally friendly chemicals, the use of which allows reducing the level of technogenic impact of chemicals on the environment, which is very important for the preservation of natural objects.","PeriodicalId":196278,"journal":{"name":"Proceedings of the 9th International Conference on Advanced Materials and Systems","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134413504","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":"Footwear Industry Leather Cutting Issues and Recommendation of Wastage Minimization Research Innovative Techniques","authors":"D. Dhanapal, Sitawala Mundia","doi":"10.24264/icams-2022.iii.8","DOIUrl":"https://doi.org/10.24264/icams-2022.iii.8","url":null,"abstract":"Leather from different parts of the animal, its characteristics, and this has to be taken into account when using leather in several products. The main parts of the hide and skin such as the shoulder, butt, belly, and axillae are different properties in terms of strength, flexibility, and durability (Mesa et al., 2019). They consumed for many types of footwear such as shoes, boots, sandals, slippers, etc. Footwear is divided into many categories such as athletic shoes also known as sneakers, galoshes, high heels, and many others. The leather clicking operation is very important for making shoe uppers mostly cow leather. Buff, goat skins are used for upper making. This operation is required a high level of skill efficiency (Elamvazhuthi et al., 2009). Right now, African country's footwear industry is very faster developing based on leather sources This research already focused on the leather cutting section layout design, operation methods, time study, standard operating procedure, assorting, grading, nesting, machine maintenance, allocation sheet Stroke report, die cabinet, daily report techniques all are implemented and recommended to the African middle scale footwear sectors.","PeriodicalId":196278,"journal":{"name":"Proceedings of the 9th International Conference on Advanced Materials and Systems","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116968526","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":"L. lactis Bacteriophages and Methods of Their Elimination from Dairy Products","authors":"O. Shydlovska, Yuliia Khmelnytska","doi":"10.24264/icams-2022.ii.23","DOIUrl":"https://doi.org/10.24264/icams-2022.ii.23","url":null,"abstract":"Dairy products are important in human diet and nutrition. That is why dairy production is critical not only economically, but also socially and medically. In recent decades, dairy production has had problems with disturbances in fermentation processes caused by bacteriophage contamination. It is important to note that every year there are new reports about newly discovered bacteriophages that disrupt fermentation processes in the production of kefir, yogurt, and various types of cheese. Lactococcus lactis strains are of particular importance in dairy technology, as they are used for the production of various yogurts and cheeses. The study of the spectrum of bacteriophages infecting this strain can help to monitor the evolutionary changes of viruses and the horizontal transfer of genes. In this paper, an analysis of phages infecting L. lactis was carried out. Most bacteriophages belong to the Siphoviridae and Podoviridae families. Moreover, the authors analyzed approaches that can be used to reduce bacteriophage contamination in the production of dairy products. It has been shown that the use of disinfectants, such as ethanol on sodium hypochlorite, can reduce the titer of bacteriophages and protect products from the development of viral infection. It is also possible to use membrane filtration with UV irradiation. Moreover, all these approaches can be combined to achieve the most effective result.","PeriodicalId":196278,"journal":{"name":"Proceedings of the 9th International Conference on Advanced Materials and Systems","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115112467","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}