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16th textile Bioengineering and Informatics Symposium, TBIS 2023

作者： Youn, Seonyoung Darden, Ryan Mathur, Kavita Fiber and Polymer Science Ph.D. Program North Carolina State University RaleighNC27606 United States Department of Textile Engineering Chemistry and Sciences M.S. Textile Engineering Program North Carolina State University RaleighNC27606 United States Department of Textile and Apparel Technology and Management North Carolina State University RaleighNC27606 United States

ISBN: (纸本)9781713879473

This paper presents a comprehensive review on the current state of digital simulation technology and its strategic application usages with a key focus on advanced compression garments. Although three-dimensional (3D) digital garment simulators have significantly impacted the apparel and textile industry, their use has been limited to visual prototyping, quality checking, or marketing. The physical properties of garment simulators have been overlooked in advanced functional manufacturing. This literature review investigates the possibility of strategically utilizing virtual physical properties to enhance garment functions, specifically in wearables and medical-grade compression fields. The first phase of this paper gives an overview of the current state of 3D garment simulation tools and their measurement features. This is followed by a gap analysis between simulated and physical property evaluations, focusing on minimizing the gaps. The literature is thoroughly examined to identify appropriate studies that uses digital tools for compressional garments and add value to wearables and healthcare applications. This paper provides valuable insights for apparel and textile engineers, enabling them to better understand the limitations and capabilities of garment simulators in improving advanced features for specific end users. © TBIS 2023. All rights reserved.

关键词： Physical properties

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Advanced energy storage nanofibers by Centrifugal spinning

Advanced energy storage nanofibers by Centrifugal spinning

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Fiber Society 2014 Fall Meeting and Technical Conference: Fibers for the Future

作者： Lu, Yao Zhang, Xiangwu Fiber and Polymer Science Program Department of Textile Engineering Chemistry and Science North Carolina State University RaleighNC27695-8301 United States

Centrifugal spinning is a simple and versatile technique for producing nanofibers from various materials. One major application of centrifugal spinning is to produce advanced functional nanofibers for energy storage. Among the various existing energy storage technologies, rechargeable lithium-ion batteries have been considered as effective solution to the increasing need for highenergy density electrochemical power sources. Novel centrifugally-spun nanofibers with functional properties can dramatically alter surface reaction rates and charge transport throughout the batteries, causing significant improvement in energy storage efficiency. Here, we present our work on the development of advanced functional nanofibers and the integration of these materials into rechargeable lithium-ion batteries to achieve high system performance.

关键词： Nanofibers

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Advanced energy-storage nanofibers for high-energy lithium-ion batteries

Advanced energy-storage nanofibers for high-energy lithium-i...

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Fiber Society 2010 Fall Meeting and Technical Conference

作者： Zhang, Xiangwu Fiber and Polymer Science Program Department of Textile Engineering Chemistry and Science North Carolina State University RaleighNC27695-8301 United States

Research and development in textiles have gone beyond the conventional applications as clothing and furnishing materials;for example, the convergence of textiles, nanotechnologies, and energy science opens up the opportunity to take on one of the major challenges in the 21st century-energy. This presentation addresses the development of high-energy lithium-ion batteries using electrospun nanofibers.

关键词： textiles

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Electrochemical performance of electrospun α-Fe2O3/C nanofibers as anodes for lithium-ion batteries

Electrochemical performance of electrospun α-Fe2O3/C nanofi...

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Fiber Society 2015 Fall Meeting and Technical Conference - Fibers: Where Tradition Meets Innovation

作者： Zhu, Jiadeng Lu, Yao Chen, Chen Jasper, Samuel Zhang, Xiangwu Fiber and Polymer Science Program Department of Textile Engineering Chemistry and Science North Carolina State University RaleighNC27695-8301 United States

Hematite iron oxide (α-Fe2O3) has received much attention for use as anode material in lithium-ion batteries not only due to its high theoretical capacity but also to its nontoxicity and low cost. However, its practical applications are limited by its low electrical conductivity as well as the large volume change during Li ion insertion/extraction process. Carbon coated α-Fe2O3 nanofibers were prepared via electrospinning followed by a thermal treatment process in this work, which were used as anode material for lithium-ion batteries. A high reversible capacity of 842 mAh g-1 at a current density of 50 mA g-1 at the 50th cycle was achieved for α-Fe2O3/C nanofibers containing 12.5 wt% carbon. Such excellent electrochemical performance could be attributed to their unique fabric structure and the conductive carbon coating which could shorten Li ion transport distance, improving Li ion reversibility and kinetic properties.

关键词： Nanofibers

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Co3O4/carbon composite nanofibers for use as anode material in advanced lithium-ion batteries

Co3O4/carbon composite nanofibers for use as anode material ...

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作者： Li, Shuli Fu, Kun Xue, Leigang Toprakci, Ozan Li, Ying Zhang, Shu Xu, Guanjie Lu, Yao Zhang, Xiangwu Fiber and Polymer Science Program Department of Textile Engineering Chemistry and Science North Carolina State University Raleigh NC 27695-8301 United States

ISBN: (纸本)9780841228139

Co3O4/carbon composite nanofibers were prepared by a combination of electrospinning and carbonization methods using 10 - 30 nm and 30 - 50 nm Co3O4 nanoparticles, respectively, and their potential use as the anode material in rechargeable lithium-ion batteries was investigated. The composite Co3O4/carbon nanofiber electrode containing 30 - 50 nm Co3O4 nanoparticles showed large reversible capacities and good cycleability with charge capacities of 677 and 545 mAh g-1 at the second and twentieth cycles, respectively. In contrast, the composite Co3O4/carbon nanofiber electrode containing 10 - 30 nm Co3O4 nanoparticles showed fast capacity fading during cycling due to severe nanoparticle aggregation. Results suggested that the good electrochemical performance of Co3O4/carbon nanofiber electrode containing 30 - 50 nm Co3O4 nanoparticles was ascribed to the combination of the properties of both Co 3O4 nanoparticles (large Li storage capability) and carbon nanofiber matrix (long cycle life), and therefore this electrode material could be potentially used in high-energy rechargeable lithium-ion batteries. © 2013 American Chemical Society.

关键词： Lithium-ion batteries

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Electrospun nanofibers for energy storage

Electrospun nanofibers for energy storage

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American Association of textile Chemists and Colorists International Conference 2010

作者： Alcoutlabi, Mataz Ji, Liwen Guo, Bingkun Li, Shuli Li, Ying Zhang, Shu Toprakci, Ozan Zhang, Xiangwu Fiber and Polymer Science Program Department of Textile Engineering Chemistry and Science North Carolina State University Raleigh NC 27695-8301 United States

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Computer-based modeling for engineers using excel and VBA

Computer-based modeling for engineers using excel and VBA

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114th Annual ASEE Conference and Exposition, 2007

作者： Joines, Jeff Roberts, Stephen Raubenheimer, Diane North Carolina State University United States Textile Engineering Chemistry And Science Department NC State University United States Textile Engineering Program United States Initiative College of Engineering United States Edward P. Fitts Department of Industrial and Systems Engineering North Carolina State University United States Institute Ofindstrial Engeeniers College of Engineering

Many engineering curriculum around the country are re-evaluating their introductory computer programming requirement. At our university, several departments have been changing from the traditional Java or C++ course to something more applicable to their discipline. This paper will address the development of a joint course across Industrial and textile engineering. Students from both departments were not using their programming knowledge in remaining courses or when they graduated. Furthermore, the introductory Java (C++) class was being taught as a service course to masses of students at one time in our university's theater. The students were not enthusiastic about the course and certainly not developing the computer modeling skills that we felt were necessary (i.e., given a problem can they develop a method for solving the problem). Therefore, we decided drop the introductory course and develop a new course in Excel and Visual Basic for Applications to better address the needs of our industry and faculty colleagues. This course was not intended to duplicate the traditional computer science method of presenting programming. Our goal was to educate students to model problems relevant to our disciplines, solve these problems using modeling tools, and then analyze these solutions through decision support (i.e., become "power users" and not programmers). This paper will address the critical development of a series of "InClassLabs" and their impact on student learning and our two curricula. Many of our homework and cases studies come from industrial sponsor data and represent real cases. The paper will discuss the fundamental issues that lead the two authors to develop this computer-intensive course. Of special interest is the classroom environment bolstered by the use of in-class teaching assistants and the use of Tablet PCs. Student evaluations are used to provide insight into the teaching strategies employed. © American Society for engineering Education, 2007.

关键词： engineering education

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A Low-cost, Easy-to-Fabricate, and Environmentally Friendly Composite Solid Electrolyte for Use in Lithium Metal Cells Paired with Lithium Iron Phosphate and Silicon

A Low-cost, Easy-to-Fabricate, and Environmentally Friendly ...

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Fiber Society 2022 Fall Meeting and Technical Conference: 80 Years of Excellence in Advancing Scientific Knowledge Pertaining to Fibers and Fiber Materials

作者： Orenstein, Raphael Dirican, Mahmut Cheng, Hui Chang, Liang Yan, Chaoyi Wang, Eric Zhiqi Zhang, Xiangwu Fiber and Polymer Science Program Department of Textile Engineering Chemistry and Science Wilson College of Textiles North Carolina State University RaleighNC United States

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Preparation of a graphene-loaded carbon nanofiber composite with enhanced graphitization and conductivity for biosensing applications

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RSC Advances 2015年第39期5卷 30602-30609页

作者： Li, Dawei Li, Guohui Lv, Pengfei Ullah, Naseeb Wang, Cheng Wang, Qingqing Zhang, Xiangwu Wei, Qufu Key Laboratory of Eco-Textiles Ministry of Education Jiangnan University Wuxi Jiangsu214122 China Fiber and Polymer Science Program Department of Textile EngineeringChemistry and Science North Carolina State University RaleighNC27695-8301 United States

A combined method of electrostatic adsorption and green reduction was successfully employed to synthesize graphene-loaded carbon nanofibers (G/CNFs). The graphene nanoflakes enhanced the degree of graphitization of CNFs. A mixture containing laccase (Lac), G/CNFs and Nafion was used to fabricate a novel biosensor. The G/CNFs facilitated the direct electron transfer between Lac and the modified electrode. A pair of apparently enhanced redox peaks was observed on the modified electrode. The biosensor was investigated using square wave voltammetry, and the biosensor displayed highly efficient electrocatalysis towards catechol with a detection limit of 20 nM (S/N = 3), a sensitivity of 13.5 μA μM-1, and a linear range from 1 × 10-7 to 2.86 × 10-6 M. Moreover, this new biosensor also showed good stability and selectivity, and was employed in measuring catechol concentration in a real water environment successfully. © 2015 The Royal Society of Chemistry.

关键词： Carbon nanofibers

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Photo-aging of modified PET-based model compounds

Photo-aging of modified PET-based model compounds

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Fiber Society 2015 Fall Meeting and Technical Conference - Fibers: Where Tradition Meets Innovation

作者： Cheema, Hammad Yildrim, Erol Arangdad, Kiarash Burk, Christopher Cleven, Curt Detwiler, Andrew Shamey, Renzo Pasquinelli, Melissa Freeman, Harold El-Shafei, Ahmed Textile Engineering Chemistry and Science Program College of Textiles North Carolina State University RaleighNC United States Eastman Chemical Company KingsportTN United States

Photosensitized reactivity and oxidations are important components of polymer weathering which are greatly influenced by the nature of excited polymer chromophores and the environment. Studying model compounds (MCs) representing the bulk of macromolecular systems is an efficient approach to understanding the inherent photophysical and chemical reactivity both practically and theoretically. In this work, MCs representing the class of cyclohexane dimethanol (CHDM) and isophthalic acid modified polyethylene terephthalate polymers have been studied to better understand the bulk weathering properties of these materials. Singlet oxygen sensitization measurements clearly show more than two fold higher 1275nm emission intensity signal for terephthalic acid based MCs compared to iso-phthalic acid based MCs with similar optical density, thus making the terephthalic acid derivatives more prone to photo-hydroperoxidation caused by singlet oxygen. Time resolved studies have provided further proof for the higher reactivity of terephthalic acid based MCs compared to iso-phthalic acid based MCs, mainly due to the dominant triplet state photophysics. Molecular modelling was also employed to predict the possible reactive sites on the MCs.

关键词： Polyethylene terephthalates

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