نتایج جستجو برای: drainage depth control

تعداد نتایج: 1511160  

2016
Weitian Cao Yi Wang Ningming Zhou Bing Xu

The factors influencing the efficacy of ultrasound-guided thoracentesis catheter drainage were investigated in the present study. A retrospective analysis of clinical data from 435 patients who presented with a pleural effusion was performed. Patients were divided into a control group and an intervention group. Thirty-seven patients in the control group were given standard care using pleural pu...

2003
D. M. Amatya

Models like DRAINMOD and its forestry version, DRAINLOB, have been specifically developed as a field scale model for evaluating hydrologic effects of crops (trees), soil, and water management practices for lands with pattern drainage (i.e. with parallel ditches) on relatively flat, high water table soils. These models conduct a water balance between the ditches to predict water table depths, dr...

Journal: :Vision Research 2004
Richard N Aslin Peter W Battaglia Robert A Jacobs

Contrast adaptation that was limited to a small region of the peripheral retina was induced as observers viewed a multiple depth-plane textured surface. The small region undergoing contrast adaptation was present only in one depth-plane to determine whether contrast gain-control is depth-dependent. After adaptation, observers performed a contrast-matching task in both the adapted and a non-adap...

Journal: :تحقیقات مهندسی کشاورزی 0
حامد ابراهیمیان دانشجوی دکتری عبدالمجید لیاقت دانشیار دانشکده آب و خاک دانشگاه تهران مسعود پارسی نژاد استادیار دانشکده مهندسی آب و خاک دانشگاه تهران مجتبی اکرم مشاور عالی در مسائل آبیاری و زهکشی کمیته ملی آبیاری و زهکشی ایران

evaluating drainage systems, exploring their strengths and weaknesses, provides a comprehensive perspective to designers and organizers for optimum design and implementation of guidelines for the future. this study was conducted at an experimental site consisting of three plots on a subsurface drainage network under operation in behshahr, a coastal region in northern iran. to evaluate system pe...

2009
Eunyoung Ko Wonshik Han Jihyoung Cho Jong Won Lee So Young Kang So-Youn Jung Eun-Kyu Kim Ki-Tae Hwang Dong-Young Noh

This randomized prospective study investigated the effect of fibrin glue use on drainage duration and overall drain output after lumpectomy and axillary dissection in breast cancer patients. A total of 100 patients undergoing breast lumpectomy and axillary dissection were randomized to a fibrin glue group (N=50; glue sprayed onto the axillary dissection site) or a control group (N=50). Outcome ...

Journal: :Automatica 2014
Graham C. Goodwin Mauricio Esteban Cea Garrido Arie Feuer David Q. Mayne

This paper addresses the following problem in networked control: ‘‘If a control law is implemented over a channel that supports a certain fixed bit rate what is the best choice for the control update rate and, consequently, the number of bits carried in each sample?’’ A restricted architecture in which linear filters are used for the encoder/decoder is considered and a quantizer with linear fee...

Journal: :The Japanese Journal of Gastroenterological Surgery 1976

پایان نامه :دانشگاه تربیت معلم - تبریز - دانشکده علوم پایه 1391

عنوان پایان نامه:بررسی عمق توانهای ایده آل یالی یک درخت فرض کنیدg یک گراف با n رأس و i(g) ایده آل یالی آن از حلقه چند جمله ایها،r=k[x1,x2,…,xn]،روی میدانk با nمتغیر باشد. فرض کنید i ایده آل یالی یک درخت یا جنگل باشد. در این پایان نامه کرانهای پایینی برای دنباله {depth rit}t?1 بدست می آوریم و نشان می دهیم این کرانهای پایین، نقطه ایستایی دنباله 1? {depth rit}tاست هرگاه g یک درخت باشد.

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