نتایج جستجو برای: پلیمر sbr

تعداد نتایج: 6149  

Introduction: Quantitative evaluation is recommended to improve diagnostic ability and serial assessment of dopamine transporter (DAT) density scans. We decided to compare the ordered subsets expectation-maximization (OSEM) with filtered back-projection (FBP), and to investigate the impact of different iteration and cut-off frequencies on SBR values. Methods</stro...

Journal: :IJEBR 2011
Paul Madden

In the 1990s, the catalyst for public sector reform stemmed from government administrative efficiency and businesslike structures. This locked in the first wave of e-government to projects that looked at citizens as customers with a focus on service delivery – on the terms and at a time that suited the customer. Overt projects to strengthen the democratic process via interactive and accountable...

Journal: :Infection and immunity 1998
E Harokopakis G Hajishengallis S M Michalek

Liposomes appear to be a promising oral antigen delivery system for the development of vaccines against infectious diseases, although their uptake efficiency by Peyer's patches in the gut and the subsequent induction of mucosal immunoglobulin A (IgA) responses remain a major concern. Aiming at targeted delivery of liposomal immunogens, we have previously reported the conjugation via a thioether...

1997
Alberto Caprara

We analyze the strong relationship among three combinatorial problems, namely the problem of sorting a permutation by the minimum number of reversals (MIN-SBR), the problem of nding the maximum number of edge-disjoint alternating cycles in a breakpoint graph associated with a given permutation (MAX-ACD), and the problem of partitioning the edge set of a Eulerian graph into the maximum number of...

Journal: :Biotechnology and bioengineering 2009
Vladimir Baytshtok Huijie Lu Hongkeun Park Sungpyo Kim Ran Yu Kartik Chandran

The goal of this study was to identify bacterial populations that assimilated methanol in a denitrifying sequencing batch reactor (SBR), using stable isotope probing (SIP) of (13)C labeled DNA and quantitatively track changes in these populations upon changing the electron donor from methanol to ethanol in the SBR feed. Based on SIP derived (13)C 16S rRNA gene clone libraries, dominant SBR meth...

2011
R. Wang R. Lackner P.-M. Wang

In this paper, micro-mechanical properties of styrene–butadiene rubber (SBR) latexmodified cement pastes identified by means of the nanoindentation (NI) technique are related to macro-mechanical properties of SBR latex-modified mortars obtained from standard test methods, considering an SBR latex/cement ratio varying from 0% to 20%. For this purpose, the average value of the hardness and the so...

2016
Wenjing Chen Xiaohu Dai Dawen Cao Sha Wang Xiaona Hu Wenru Liu Dianhai Yang

The partial nitrification (PN) performance and the microbial community variations were evaluated in a sequencing batch reactor (SBR) for 172 days, with the stepwise elevation of ammonium concentration. Free ammonia (FA) and low dissolved oxygen inhibition of nitrite-oxidized bacteria (NOB) were used to achieve nitritation in the SBR. During the 172 days operation, the nitrogen loading rate of t...

Journal: :American journal of physiology. Gastrointestinal and liver physiology 2000
L E Stern R A Falcone C J Kemp M C Braun C R Erwin B W Warner

Salivary epidermal growth factor (sEGF) levels are increased in male mice after small bowel resection (SBR) and may be important during intestinal adaptation. Since males have greater sEGF than females, the influence of sex on postresection adaptation was tested. Females had lower sEGF; however, sEGF substantially increased in both sexes after a massive (50%) SBR. Adaptive increases in DNA and ...

2017
Xiaoling Zhang Fan Zhang Yanhong Zhao Zhengqun Li

The start-up and performance of the completely autotrophic nitrogen removal via nitrite (CANON) process were examined in a sequencing batch reactor (SBR) with intermittent aeration. Initially, partial nitrification was established, and then the DO concentration was lowered further, surplus water in the SBR with high nitrite was replaced with tap water, and continuous aeration mode was turned in...

2015
Chitpisud Supha Yuphada Boonto Manee Jindakaraked Jirapat Ananpattarachai Puangrat Kajitvichyanukul

Titanium dioxide (TiO2) nanopowders at different concentrations (0-50 mg L-1) were injected into an aerobic-sequencing batch reactor (SBR) to investigate the effects of long-term exposure to nanoparticles on bacterial and protozoan communities. The detection of nanoparticles in the bioflocs was analyzed by scanning electron microscopy, transmission electron microscopy, and energy-dispersive x-r...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید