نتایج جستجو برای: flux and rejection

تعداد نتایج: 16845373  

Journal: :iranian red crescent medical journal 0
alireza ghorbanibirgani nursing care research center in chronic disease, ahvaz jundishapur university of medical sciences, ahvaz, ir iran masoud fallahi-khoshknab phd, associate professor of nursing department, university of social welfare and rehabilitation sciences (uswr), tehran, ir iran; associate professor of nursing department, university of social welfare and rehabilitation sciences (uswr), tehran, ir iran. tel/fax: +98-2122180036 kourosh zarea nursing care research center in chronic disease, ahvaz jundishapur university of medical sciences, ahvaz, ir iran heidarali abedi department of nursing, nursing and midwifery school, khorasgan branch, islamic azad university, khorasgan, ir iran

conclusions patients’ experiences of stigma and rejection phenomena indicated that all aspects of their lives are affected. moreover, these findings highlight the significance of stigma and rejection concepts in providing better care to these patients. results after analysis of interviews, four themes were extracted: lack of social support, unrealistic and inappropriate labeling, rejection and ...

Journal: :Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 2022

A comparative study was undertaken to investigate the potential of silica-pectin ultrafiltration membrane on varied operation pressure (0.1-0.3 MPa). Cross-flow works were explored with tubular alumina substrates in single and multichannel configuration. The sol prepared from TEOS as silica precursor by sol-gel method, afterward pectin templated into induce carbon it. Thereafter, both coated vi...

Journal: :international journal of geo science and environmental planning 0
seyed amirodin sadrnejhad prof, civil engineering dept., k.n.toosi university of technology, teheran, iran mir sina mousavi aghdam msc,khak energy pars., geotechnical consultant co, teheran, iran mahsa memarianfard phd civil engineering dept., k.n.toosi university of technology, teheran, iran zahra sharif tehrani msc student.faculty of art and architecture. kashan university, kashan, iran

an investigation on the thermal performance of the soil as geothermal heat energy storage medium has been conducted. the thermal characteristics of the soil storage and the heat transfer from a heat exchanger in the soil, surrounding and bottom surface will be discussed. this investigation forms a contribution to a project to realize such storage to be charged from a solar heating system. this ...

Introduction and purpose: Aging population is increasing and it is of great importance to predict factors that promote physical and mental health status of elderly. This study aimed to predict the perceived rejection based on early maladaptive Schema among active and inactive elderly. Methods & Materials: We used cluster sampling method to collect 150 elderly (included 75 active and 75 inact...

Journal: :international journal of nanoscience and nanotechnology 2013
m. m. zerafat m. shariaty-niassar s. j. hashemi s. sabbaghi a. ghaee

nanofiltration-based separation processes have found diverse applications in industrial and environmentalproblems recently, due to several advantages such as lower energy requirement and elevated flux ratescompared with their reverse osmosis (ro) counterparts. several attempts have been made for modellingnf-based separation processes ranging from rigorous space-charge approaches to simpler irre...

Journal: :molecular and biochemical diagnosis (journal) 0
razieh abdolvahabi department of pathobiology, school of public health, tehran university of medical sciences, tehran, iran abdolfatah sarrafnejad department of pathobiology, school of public health, tehran university of medical sciences, tehran, iran mohsen nafar chronic kidney disease research center, department of nephrology, shahid labbafinejad medical center, shahid beheshti university of medical sciences, tehran, iran aliakbar amirzargar department of immunology, school of medicine, tehran university of medical sciences, tehran, iran and molecular immunology research center, tehran university of medical sciences, tehran, iran

background: the innate immunity plays an important role in the host response to transplantation by toll-like receptors and results in development of acute allograft rejection. the aim of this study was to evaluate the association of tlr2 and cd14 (co-receptor) gene polymorphisms with acute rejection in kidney transplant recipients.   methods : the study was conducted in a population of 239 subj...

Enrico Drioli, H.Y. Wong K.K. Lau O.B. Seng,

Direct contact membrane distillation (DCMD) which emerges as an alternative separation technology can effectively perform a colloidal separation process under thermal driven force. DCMD is capable of extracting pure water from aqueous solutions containing non-volatile nanoparticles through the hydrophobic microporous membrane when a vapour pressure difference was established across the membrane...

Journal: :Water research 2014
Ming Xie Long D Nghiem William E Price Menachem Elimelech

This study elucidates the relationship between membrane properties and the rejection of trace organic contaminants (TrOCs) in forward osmosis (FO). An asymmetric cellulose triacetate (CTA) and a thin-film composite (TFC) polyamide FO membrane were used for this investigation. The effective average pore radius (rp), selective barrier thickness over porosity parameter (l/ε), surface charge, suppo...

2017
M. R. Muthumareeswaran Mansour Alhoshan Gopal Prasad Agarwal

The objective of the present work was to investigate the efficacy of indigenously developed polyacrylonitrile (PAN) based ultrafiltration (UF) membrane for chromium ions removal from potable water. The hydrolyzed PAN membranes effectively rejected chromium anions in the feed ranging from 250 ppb to 400 ppm and a rejection of ≥90% was achieved for pH ≥ 7 at low chromate concentration (≤25 ppm) i...

Journal: :Hitite journal of science and engineering 2022

This study aimed to investigate the effect of Gadolinium oxide (Gd2O3) concentration (0.5%, 1%, and 2%) on performance polysulfone (PSF) membrane. The membranes were fabricated by a common phase inversion method. was determined based pure water flux, bovine serum albumin (BSA) permeation test. These characterized FTIR contact angle measurements. highest BSA rejection 53%. optimum membrane (2 % ...

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