نتایج جستجو برای: woven fibers

تعداد نتایج: 75010  

2012
Fatma Vatansever Michael R. Hamblin

Far infrared (FIR) radiation ( λ = 3 – 100 μ m) is a subdivision of the electromagnetic spectrum that has been investigated for biological effects. The goal of this review is to cover the use of a further sub-division (3 – 12 μ m) of this waveband, that has been observed in both in vitro and in vivo studies, to stimulate cells and tissue, and is considered a promising treatment modality for cer...

2007
Rie NAKAMURA Hiroki NOMURA Koichi GODA Junji OHGI

INTRODUCTION Today, development of materials technology using biomass is expected for creation of a sustainable society. Especially, the composite consisting of plant-based natural fibers and biodegradable resin, so-called the fully-green composites, is much expected for practical use. So far, we made textile green composites using biodegradable resin and plain woven ramie fabric and explored t...

Journal: :Materials Letters 2021

SiC-fibers are subjected to a predictable premature failure, consequence of slow crack growth mechanism. This has chiefly been studied through static fatigue testing multifilament tows. The discrepancy existing between experimental results, broadly dispersed, and the bundle theory (solely considering filament strength distribution) interpreted by discrete stochastic phenomena. In this work, unc...

2008
V K Kothari

The filtration behaviour of woven and nonwoven fabrics at different air flow rate, dust feed rate, dust loading, time intervals and dust particles has been studied. It is observed that the pressure drop increases with the increase in airflow rate for both the woven and nonwoven filters. In general, the pressure drop in case of woven filter is found to be higher than that in case of nonwoven fil...

Journal: :Journal of prosthodontics : official journal of the American College of Prosthodontists 2008
Ioannis Kostoulas Victoria T Kavoura Mary J Frangou Gregory L Polyzois

PURPOSE Fractures in acrylic resin dentures occur quite often in the practice of prosthodontics. A durable repairing system for denture base fracture is desired to avoid recurrent fracture. The purpose of this study was to evaluate the fracture force, deflection, and toughness of a heat-polymerized denture base resin repaired with autopolymerized resin alone (C), visible light-polymerizing resi...

Journal: :Journal of physics 2022

Abstract Since the end of 2019, Corona Virus Disease 2019 (COVID-19) pandemic has led to a surge in use all kinds medical supplies, especially surgical masks. Based on microstructure and anti-virus mechanism melt-blown materials used for masks, this paper introduces research status nonwoven filter protective At same time, surface interface structure four disposable masks from different manufact...

2017
Scott B. Williams Larry L. Murdock Dieudonne Baributsa

Interest in using hermetic technologies as a pest management solution for stored grain has risen in recent years. One hermetic approach, Purdue Improved Crop Storage (PICS) bags, has proven successful in controlling the postharvest pests of cowpea. This success encouraged farmers to use of PICS bags for storing other crops including maize. To assess whether maize can be safely stored in PICS ba...

Journal: :IEEE Journal on Selected Areas in Communications 2001
Jürgen Freudenberger Martin Bossert Victor V. Zyablov Sergo Shavgulidze

In this paper we consider convolutional and block encoding schemes which are variations of woven codes with outer warp. We propose methods to evaluate the distance characteristics of the considered codes on the basis of the active distances of the component codes. With this analytical bounding technique, we derived lower bounds on the minimum (or free) distance of woven convolutional codes, wov...

2010
Zhi-gang HU Yan ZHANG

A continuum damage mechanics (CDM) meso-model was derived for both intraply and interply progressive failure behaviors of a 2D woven-fabric composite laminate under a transversely low velocity impact. An in-plane anisotropic damage constitutive model of a 2D woven composite ply was derived based on CDM within a thermodynamic framework, an elastic constitutive model with damage for the fibre dir...

2004
M. Emin Kutay Ahmet H. Aydilek

Nonwoven geotextiles are commonly used in filtration applications. For some applications, however, a nonwoven geotextile filter may not have the required mechanical properties to withstand deformations, and an additional woven geotextile is usually employed in design. While reinforcement is an important function expected from these two-layer geotextile systems, filtration is another function th...

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