نتایج جستجو برای: impregnated fibers

تعداد نتایج: 75575  

2001
Alfredo Anglani Francesco Nucci Alessandro Spagnolo

Filament winding is a process in which tensioned resin-impregnated continuous fibers are placed on a specified path on a mandrel. Automated systems have been adopted to deliver the fiber with a fixed level of accuracy. Process simulation is a very important question in automated applications. Moreover, the necessity to process complex shape objects leads to consider different alternatives to de...

A. Asillian, A. Ghoddusi A. Sadeghnia F. Shariati M. Iman Jome

Background: One approach for prevention of cutaneous leishmaniasis is creation of a barrier between the insect vector (phlebotomus) and the host.  Many, but not all, researchers claim that permethrin-impregnated uniforms are effective for prevention of cutaneous leishmaniasis.  We determined the efficacy of permethrin-impregnated uniforms for prevention of cutaneous leishmaniasis among Iranian ...

Digital image processing is an emerging tool to predict fruit quality; therefore present study was carried out to develop an image processing technique for investigating the storage life of cantaloupe. Potassium permanganate (KMnO4) impregnated materials were used to prolong the postharvest life of cantaloupe fruit and the effects of these treatments were evaluated by 3 image textural features ...

Journal: :BMC Urology 2007
Ahmed Shafik Ismail Shafik Olfat El Sibai Ali A Shafik

BACKGROUND Etiology of venogenic erectile dysfunction is not exactly known. Various pathologic processes were accused but none proved entirely satisfactory. These include presence of large venous channels draining corpora cavernosa, Peyronie's disease, diabetes and structural alterations in fibroblastic components of trabeculae and cavernous smooth muscles. We investigated hypothesis that tunic...

2004
Lisbeth M. Ottosen Iben V. Kristensen Anne Juul Pedersen Henrik K. Hansen

In the next ten years the amounts of waste wood impregnated with Cu, Cr and As (CCA) is expected to increase dramatically world wide. CCA has been widely used for wood preservation since the early 1950s and because the fixation of CCA in the wood is good, the concentration of CCA is still high, when the wood is at the end of service. In some countries e.g. Denmark and Norway, the use of As for ...

Journal: :Emerging Infectious Diseases 2001
L. A. Mermel

Most intravascular catheter-related infections are associated with central venous catheters. Technologic advances shown to reduce the risk for these infections include a catheter hub containing an iodinated alcohol solution, short-term chlorhexidine-silver sulfadiazine- impregnated catheters, minocycline-rifampin-impregnated catheters, and chlorhexidine- impregnated sponge dressings. Nontechnol...

Journal: :The Journal of antimicrobial chemotherapy 2006
Kwok M Ho Edward Litton

OBJECTIVES Vascular and epidural catheter-related infections cause significant morbidities and mortality in hospitalized patients. This meta-analysis assessed the effect of chlorhexidine-impregnated dressing on the risk of vascular and epidural catheter bacterial colonization and infection. METHODS Literature search was based on MEDLINE (1966 to 1 November 2005), EMBASE and Cochrane Controlle...

Journal: :Surgical infections 2007
Douglas J E Schuerer Jeanne E Zack James Thomas Ingrid B Borecki Carrie S Sona Marilyn E Schallom Melissa Venker Jennifer L Nemeth Myrna R Ward Linda Verjan David K Warren Victoria J Fraser John E Mazuski Walter A Boyle Timothy G Buchman Craig M Coopersmith

BACKGROUND Current guidelines recommend using antiseptic- or antibiotic-impregnated central venous catheters (CVCs) if, following a comprehensive strategy to prevent catheter-related blood stream infection (CR-BSI), infection rates remain above institutional goals based on benchmark values. The purpose of this study was to determine if chlorhexidine/silver sulfadiazine-impregnated CVCs could de...

Journal: :Chemical communications 2015
Do Van Lam Tao Gong Sejeong Won Jae-Hyun Kim Hak-Joo Lee Changgu Lee Seung-Mo Lee

A small amount of Zn impregnated by ALD triggered enhancement of the mechanical as well as electrical properties of the graphene oxide (GO) membrane. In addition, the Zn-impregnated membranes selectively separated diverse organic vapors while maintaining high water permeability.

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه گیلان - دانشکده فنی 1393

asymmetric membranes are widely used in many industrial membrane separation processes. the major advantage of membrane filtration over the conventional process is its ability to remove a wider spectrum of particles without using any chemicals. hollow fiber configuration offer many advantages over flat-sheet or tubular membranes. the spinning process of hollow fiber may look simple, yet it is te...

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