The Experts below are selected from a list of 282 Experts worldwide ranked by ideXlab platform
Yan Er Jhuang - One of the best experts on this subject based on the ideXlab platform.
-
the effect of tensile hysteresis and contact resistance on the performance of strain resistant elastic conductive Webbing
Sensors, 2011Co-Authors: Tien-wei Shyr, Jing Wen Shie, Yan Er JhuangAbstract:To use e-textiles as a strain-resistance sensor they need to be both elastic and conductive. Three kinds of elastic-conductive Webbings, including flat, tubular, and belt Webbings, made of Lycra fiber and carbon coated polyamide fiber, were used in this study. The strain-resistance properties of the Webbings were evaluated in stretch-recovery tests and measured within 30% strain. It was found that tensile hysteresis and contact resistance significantly influence the tensile elasticity and the resistance sensitivity of the Webbings. The results showed that the Webbing structure definitely contributes to the tensile hysteresis and contact resistance. The smaller the friction is among the yarns in the belt Webbing, the smaller the tensile hysteresis loss. However the close proximity of the conductive yarns in flat and tubular Webbings results in a lower contact resistance.
-
The effect of tensile hysteresis and contact resistance on the performance of strain-resistant elastic-conductive Webbing
Sensors, 2011Co-Authors: Tien-wei Shyr, Jing Wen Shie, Yan Er JhuangAbstract:To use e-textiles as a strain-resistance sensor they need to be both elastic and conductive. Three kinds of elastic-conductive Webbings, including flat, tubular, and belt Webbings, made of Lycra fiber and carbon coated polyamide fiber, were used in this study. The strain-resistance properties of the Webbings were evaluated in stretch-recovery tests and measured within 30% strain. It was found that tensile hysteresis and contact resistance significantly influence the tensile elasticity and the resistance sensitivity of the Webbings. The results showed that the Webbing structure definitely contributes to the tensile hysteresis and contact resistance. The smaller the friction is among the yarns in the belt Webbing, the smaller the tensile hysteresis loss. However the close proximity of the conductive yarns in flat and tubular Webbings results in a lower contact resistance. © 2011 by the authors; licensee MDPI, Basel, Switzerland.
Tien-wei Shyr - One of the best experts on this subject based on the ideXlab platform.
-
the effect of tensile hysteresis and contact resistance on the performance of strain resistant elastic conductive Webbing
Sensors, 2011Co-Authors: Tien-wei Shyr, Jing Wen Shie, Yan Er JhuangAbstract:To use e-textiles as a strain-resistance sensor they need to be both elastic and conductive. Three kinds of elastic-conductive Webbings, including flat, tubular, and belt Webbings, made of Lycra fiber and carbon coated polyamide fiber, were used in this study. The strain-resistance properties of the Webbings were evaluated in stretch-recovery tests and measured within 30% strain. It was found that tensile hysteresis and contact resistance significantly influence the tensile elasticity and the resistance sensitivity of the Webbings. The results showed that the Webbing structure definitely contributes to the tensile hysteresis and contact resistance. The smaller the friction is among the yarns in the belt Webbing, the smaller the tensile hysteresis loss. However the close proximity of the conductive yarns in flat and tubular Webbings results in a lower contact resistance.
-
The effect of tensile hysteresis and contact resistance on the performance of strain-resistant elastic-conductive Webbing
Sensors, 2011Co-Authors: Tien-wei Shyr, Jing Wen Shie, Yan Er JhuangAbstract:To use e-textiles as a strain-resistance sensor they need to be both elastic and conductive. Three kinds of elastic-conductive Webbings, including flat, tubular, and belt Webbings, made of Lycra fiber and carbon coated polyamide fiber, were used in this study. The strain-resistance properties of the Webbings were evaluated in stretch-recovery tests and measured within 30% strain. It was found that tensile hysteresis and contact resistance significantly influence the tensile elasticity and the resistance sensitivity of the Webbings. The results showed that the Webbing structure definitely contributes to the tensile hysteresis and contact resistance. The smaller the friction is among the yarns in the belt Webbing, the smaller the tensile hysteresis loss. However the close proximity of the conductive yarns in flat and tubular Webbings results in a lower contact resistance. © 2011 by the authors; licensee MDPI, Basel, Switzerland.
Jing Wen Shie - One of the best experts on this subject based on the ideXlab platform.
-
the effect of tensile hysteresis and contact resistance on the performance of strain resistant elastic conductive Webbing
Sensors, 2011Co-Authors: Tien-wei Shyr, Jing Wen Shie, Yan Er JhuangAbstract:To use e-textiles as a strain-resistance sensor they need to be both elastic and conductive. Three kinds of elastic-conductive Webbings, including flat, tubular, and belt Webbings, made of Lycra fiber and carbon coated polyamide fiber, were used in this study. The strain-resistance properties of the Webbings were evaluated in stretch-recovery tests and measured within 30% strain. It was found that tensile hysteresis and contact resistance significantly influence the tensile elasticity and the resistance sensitivity of the Webbings. The results showed that the Webbing structure definitely contributes to the tensile hysteresis and contact resistance. The smaller the friction is among the yarns in the belt Webbing, the smaller the tensile hysteresis loss. However the close proximity of the conductive yarns in flat and tubular Webbings results in a lower contact resistance.
-
The effect of tensile hysteresis and contact resistance on the performance of strain-resistant elastic-conductive Webbing
Sensors, 2011Co-Authors: Tien-wei Shyr, Jing Wen Shie, Yan Er JhuangAbstract:To use e-textiles as a strain-resistance sensor they need to be both elastic and conductive. Three kinds of elastic-conductive Webbings, including flat, tubular, and belt Webbings, made of Lycra fiber and carbon coated polyamide fiber, were used in this study. The strain-resistance properties of the Webbings were evaluated in stretch-recovery tests and measured within 30% strain. It was found that tensile hysteresis and contact resistance significantly influence the tensile elasticity and the resistance sensitivity of the Webbings. The results showed that the Webbing structure definitely contributes to the tensile hysteresis and contact resistance. The smaller the friction is among the yarns in the belt Webbing, the smaller the tensile hysteresis loss. However the close proximity of the conductive yarns in flat and tubular Webbings results in a lower contact resistance. © 2011 by the authors; licensee MDPI, Basel, Switzerland.
Marian H. Williams - One of the best experts on this subject based on the ideXlab platform.
-
Physical Webbing: Collaborative kinesthetic three-dimensional Mind Maps®:
Active Learning in Higher Education, 2012Co-Authors: Marian H. WilliamsAbstract:Mind Mapping has predominantly been used by individuals or collaboratively in groups as a paper-based or computer-generated learning strategy. In an effort to make Mind Mapping kinesthetic, collaborative, and three-dimensional, an innovative pedagogical strategy, termed Physical Webbing, was devised. In the Physical Web activity, groups collaboratively build concrete (physical) representations of content using kinesthetic or participatory manipulatives. The theoretical underpinnings of the Physical Web include the scientific findings on the physicality of learning and Papert’s constructionist theory. A case study example of the implementation of the Physical Webbing process delineates a specific application and provides procedures for replication and expansion of the strategy. Qualitative analysis of the attitudinal surveys following the activity provided data regarding students’ preference for the Physical Webbing activity over the traditional lecture, acceptance of participatory manipulatives, perceived...
-
Physical Webbing: Collaborative kinesthetic three-dimensional Mind Maps®
Active Learning in Higher Education, 2012Co-Authors: Marian H. WilliamsAbstract:Mind Mapping has predominantly been used by individuals or collaboratively in groups as a paper-based or computer-generated learning strategy. In an effort to make Mind Mapping kinesthetic, collaborative, and three-dimensional, an innovative pedagogical strategy, termed Physical Webbing, was devised. In the Physical Web activity, groups collaboratively build concrete (physical) representations of content using kinesthetic or participatory manipulatives. The theoretical underpinnings of the Physical Web include the scientific findings on the physicality of learning and Papert's constructionist theory. A case study example of the implementation of the Physical Webbing process delineates a specific application and provides procedures for replication and expansion of the strategy. Qualitative analysis of the attitudinal surveys following the activity provided data regarding students' preference for the Physical Webbing activity over the traditional lecture, acceptance of participatory manipulatives, perceived learning and attitudes towards collaborative kinesthetic three-dimensional Mind Mapping.
Marcel Dicke - One of the best experts on this subject based on the ideXlab platform.
-
leaf pubescence and two spotted spider mite Webbing influence phytoseiid behavior and population density
Oecologia, 2001Co-Authors: A Roda, J P Nyrop, Gregory M Englishloeb, Marcel DickeAbstract:Phytoseiid mites, both in agricultural and natural systems, can play an important role in the regulation of herbivorous mites. Host plant traits, such as leaf pubescence, may influence the dynamics between predator and prey. In this study, we examined the influence of leaf surface characteristics (leaf pubescence and two-spotted spider mite Webbing) on the behavior of two species of predatory mites, the generalist Typhlodromus pyri and the spider mite specialist Phytoseiulus persimilis. In laboratory trials, T. pyri females consistently spent more time and deposited more eggs on leaf discs from trichome-rich apple varieties compared to relatively trichome-poor varieties. A similar result was found when the choice involved trichome-rich and trichome-poor apple varieties planted into the same pot where leaves were allowed to touch so that the mites could freely move from leaf to leaf. To further explore the effect of structure created by pubescence and to remove possible confounding effects of chemical cues, we added cotton fibers to trichome-free bean leaves. T. pyri females consistently spent more time and deposited more eggs on the side of a glabrous bean leaf with artificial cotton fibers versus the side without added fibers. When given a choice between two densities of cotton fibers, T. pyri females consistently selected the highest density of available fibers in which to to reside and oviposit. T. pyri also preferred cotton fiber configurations in which it could move underneath and access the plant surface. The artificial pubescent leaf was also used to test the effect of leaf hairs and two-spotted spider mite Webbing on the behavior of P. persimilis. P. persimilis females preferred residing and ovipositing on surfaces with cotton fibers or two-spotted spider mite Webbing than on bean leaf areas without these structures. When presented a choice between cotton fibers or Webbing, the behavior of P. persimilis females depended on the cotton fiber density. In a mixed-variety apple orchard, we investigated the relationship between leaf pubescence and phytoseiid density under field conditions. We found a highly significant, positive relationship between density of trichomes on leaves and abundance of T. pyri, whereas spider mite prey numbers were uniformly low and unrelated to trichome density. These field results suggest that the behavioral responses found in our laboratory experiments have population consequences.
