نتایج جستجو برای: pss

تعداد نتایج: 4353  

2017
Ziquan Liu Wei Yao Jinyu Wen Akhtar Kalam

Abstract: Power system stabilizers (PSSs) are widely used for suppressing low frequency oscillations in practical power systems. However, according to the requirement of the “guide for setting test of power system stabilizer” of China, PSS gain is limited to no more than 1/3 of its critical gain. As a result, PSSs may not provide enough damping to the inter-area mode oscillations. Through analy...

2015
Peter Pelzer Robert Goodspeed

Recent research has emphasized the importance of workshops as a venue where planning support systems (PSS) are used in planning processes. Empirical studies of these workshops have previously largely overlooked facilitation, in particular the role of a moderator (steering the discussion) and/or a chauffeur (steering the PSS). Drawing on existing facilitation research, we identify four main cate...

Journal: :The European respiratory journal 1998
U G Lalloo S Lim R DuBois P J Barnes K F Chung

Cough is a common presenting symptom of interstitial lung disease (ILD). The aim of this study was to examine the cough reflex in patients with progressive systemic sclerosis (PSS), with and without associated ILD. The cough reflex to inhalation of chloride deficient solutions and capsaicin was determined in patients with PSS with associated ILD (n=12), compared to patients with PSS without ILD...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه بوعلی سینا - دانشکده مهندسی 1388

بکارگیری پایدارساز سیستم قدرت (pss) در سیستم های قدرت موجب بهبود پایداری دینامیکی در سیستم های قدرت می شود. ضروری است pss به خوبی و با پارامترهای مناسب طراحی گردد. در این پایان نامه یکبار از pss با پارامتر ثابت در سیستم قدرت استفاده می گردد و یکبار نیز از pss با پارامتر متغیر در سیستم قدرت استفاده می شود. در بکارگیری از pss با پارامتر ثابت؛ از یک تابع هدف جدید برای بهینه سازی و تعیین پایداری سی...

Journal: :Molecules 2017
Qiong Wang Feng Wang Zhenghong Xu Zhongyang Ding

Mushrooms are widely distributed around the world and are heavily consumed because of their nutritional value and medicinal properties. Polysaccharides (PSs) are an important component of mushrooms, a major factor in their bioactive properties, and have been intensively studied during the past two decades. Monosaccharide composition/combinations are important determinants of PS bioactivities. T...

Journal: :Medicine and science in sports and exercise 2016
Jay R Hoffman Hadas Cohen Ishay Ostfeld Zeev Kaplan Joseph Zohar Hagit Cohen

INTRODUCTION This study examined the effect of endurance exercise on dendritic arborization in the dentate gyrus subregion in rodents exposed to a predator scent stress (PSS). METHODS Sprague-Dawley rats were randomly assigned to one of four treatment groups. In two of the groups, rats were unexposed to PSS but either remained sedentary (SED + UNEXP) or were exercised (EX + UNEXP). In the oth...

2017
NeiLi Xu Shuai Zhao HongXia Xue WenYi Fu Li Liu TianQi Zhang Rui Huang Ning Zhang

OBJECTIVE This study aimed to assess the association between perceived social support (PSS) and fatigue and the roles of hope, optimism, general self-efficacy and resilience as mediators or moderators on PSS-fatigue association among Rheumatoid Arthritis (RA) patients in China. METHODS A multi-center, cross-sectional study was conducted withinpatients diagnosed with RA in northeast China, in ...

Journal: :Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery 2017
Michael D Puricelli Maxwell D Newby Andrew J Fishman Arnaldo L Rivera

Objective To define the presence and relationship of the petrosquamous stalactite (PsS)-a condensation of the trabecular Korner's septum into a bony plate of the petrosquamous suture-to surrounding structures and understand its surgical implications. Study Design Series of cadaver dissections. Setting University of Missouri Alumni Temporal Bone and Microvascular Laboratory. Subjects and Methods...

Journal: :Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 2017
Yan Wang Bin-Bin Huang Wan-Lin Dai Bin Xu Tian-Liang Wu Jia-Ping Ye Jian-Shan Ye

A sensitive capsaicin sensor was constructed based on a poly(sodium 4-styrenesulfonate) functionalized graphite modified screen printed electrode (PSS-Grp/SPE) in this study. The PSS-Grp and poly(diallyldimethylammonium chloride) functionalized graphite (PDDA-Grp) were easily synthesized by interacting Grp with PSS and PDDA through sonication, and resulted in negative and with positive charges ...

Journal: :The Journal of urology 2005
Esther T Kok Arthur M Bohnen Frans P M J Groeneveld Jan J V Busschbach Marco H Blanker J L H Ruud Bosch

PURPOSE We determined if and to what extent longitudinal changes in lower urinary tract symptoms are related to disease specific and generic quality of life in men. MATERIAL AND METHODS A longitudinal, population based study with a followup of 4.2 years was done in 1,688 who were 50 to 79 years old. Data were collected through self-administered questionnaires, including the Sickness Impact Pr...

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