نتایج جستجو برای: physical 80 percent

تعداد نتایج: 942064  

Journal: :Journal of Research of the National Bureau of Standards, Section C: Engineering and Instrumentation 1962

Journal: :مدیریت آب و آبیاری 0
محمود مشعل استادیار گروه مهندسی آبیاری و زهکشی، پردیس ابوریحان، دانشگاه تهران، پاکدشت - ایران جواد کامرانی کارشناس ارشد گروه مهندسی آبیاری و زهکشی، پردیس ابوریحان، دانشگاه تهران، پاکدشت - ایران فرهاد میرزایی اصلی استادیار گروه مهندسی آبیاری و آبادانی، پردیس کشاورزی و منابع طبیعی، دانشگاه تهران، کرج - ایران

concerns about nitrate pollution in groundwater and downstream systems cause development of surface water management system to reduce losses of agricultural drainage water nitrate in subsurface drainage using subsurface irrigation from existing drainage lines, drainage water during the growing season and out of season is controlled. the overall objective of this study was to evaluate the effect...

Journal: :Didactics of Mathematics 2015

Journal: :Journal of Economic Perspectives 2013

Journal: :Plastic and reconstructive surgery 2000
M B Constantian

A retrospective study was conducted of 150 consecutive secondary rhinoplasty patients operated on by the author before February of 1999, to test the hypothesis that four anatomic variants (low radix/low dorsum, narrow middle vault, inadequate tip projection, and alar cartilage malposition) strongly predispose to unfavorable rhinoplasty results. The incidences of each variant were compared with ...

Journal: :Chest 1994
K Shivkumar K Ravi J W Henry M Eichenhorn P D Stein

The purpose of this investigation was to determine the severity of pure restrictive ventilatory impairment that results in right ventricular (RV) dilatation, increased RV wall thickness, and pulmonary hypertension. Two dimensional (2-D) echocardiography, Doppler measurements of pulmonary flow, and spirometry were performed on 26 unselected patients (17 female, 9 male) with a pure restrictive ve...

Journal: :The Serials Librarian 2004

2014
Lisa A. Keister

Recent protest movements brought attention to the one percent, a segment of the population that is critical to understanding inequality and social mobility but that attracts relatively little research attention. In this article, I survey current research on the one percent in the United States. I distinguish income from wealth and show that both are very concentrated but that the concentration ...

Journal: :Journal of prosthodontic research 2010
Yohsuke Taira Junichi Fukui Tetsuro Odatsu Kohji Kamada Takashi Sawase

PURPOSE The purpose of the present study was to evaluate the flexural strength of the joint between glass-infiltrated alumina frames and the experimental adjusting agent (MA modifier) that contains alumina and magnesia. METHODS A commercially available adjusting agent (Optimizer), a slurry of alumina powder (Alumina modifier), and a bulk specimen (joint-free alumina) were used as controls. Be...

2002
Trevor Hancock

Table 2: Increases in average annual number of cases of cancer and changes due to increase in Executive Summary 1. Cancer prevention must be future oriented because: • for 80 percent of those who will be suffering from cancer in 10 years time, cancer has already been initiated and has already been diagnosed in 10 percent of them; • put another way, the process of developing cancer is already un...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید