نتایج جستجو برای: earth dams

تعداد نتایج: 101458  

2011
Brian S. Helms David C. Werneke Michael M. Gangloff Emily E. Hartfield Jack W. Feminella

We quantified fish assemblages in 20 streams containing mill dams in various physical conditions (dams intact, partially breached, or relict with normal flows) in Alabama, USA, during the period from 2006 to 2008. We used a backpack electroshocker to sample three 150-m reaches per stream: 500 to 1000 m downstream of the dam, 0 to 100 m downstream of the dam, and 100 m upstream of the impoundmen...

Journal: :Journal of nutritional science and vitaminology 2007
Yoko Nakashima

To investigate the influence of fat-feeding dams on the food choice of their pups after weaning, each of three groups of dams was fed a low-fat diet (LHD), a high-fat diet (HFD) or a two-choice diet of LFD and HFD during pregnancy and lactation. Immediately after weaning, all pups were placed on a two-choice diet program for 5 wk. The fat energy ratio (F ratio) for dams fed the two-choice diet ...

Journal: :Brazilian journal of biology = Revista brasleira de biologia 2009
E E Souza Filho

The building of large dams in the Upper Paraná River basin altered the discharge regime at the Porto São José River section. The discharge regime has been altered since 1972, but the changes intensified after the Porto Primavera damming, in late 1998. Considering that discharge control affects the relationship between channel and floodplain, this work aimed to evaluate the intensity of the disc...

2011
Sandra M. Barbalho Débora C. Damasceno Ana Paula Machado Spada Miréia Palhares Karla Aparecida Martuchi Marie Oshiiwa Viviane Sazaki Vanessa Sellis da Silva

Knowing that maternal diabetes is related to hyperglycemia and fetal hyperinsulinemia, which affect the lipid metabolism, the aim of this study was to evaluate the effects of Malpighia emarginata (acerola) juice on the glycemic and lipid profile of offspring of diabetic and nondiabetic Wistar rats. The adult offspring of non-diabetic dams and of dams with severe streptozotocin-induced diabetes ...

Journal: :Journal of oral science 2010
Christopher I Udoye Hamid Jafarzadeh

In this cross-sectional questionnaire-based study, we surveyed the attitudes toward, knowledge of, and use of rubber dams (RDs) among dentists in southern Nigeria. The questionnaire, which was distributed and collected by one of the authors, requested information on the dentists' background characteristics, attitudes, and knowledge. Data were analyzed with SPSS, and the chi-square was used to a...

Journal: :مرتع و آبخیزداری 0
بیتا شیروی دانشجوی کارشناسی ارشد آبخیزداری، دانشکدة منابع طبیعی و محیط زیست دانشگاه فردوسی مشهد علی گلکاریان استادیار دانشکدة منابع طبیعی و محیط زیست دانشگاه فردوسی مشهد علی ابوطالبی پیرنعیمی کارشناس ارشد زمین‏شناسی، دانشکدة منابع طبیعی و محیط زیست دانشگاه فردوسی مشهد

check dams, are small dams in the watershed. these dams are constructed in susceptible areas to erosion due to reduce of flow velocity and erosion, control of sediment and flood in upstream of reservoir dams. these structures are made using wood, stone and cement, and gabion. these structures change the hydrological response of the watershed by reducing flow velocity, the channel slope and stor...

Journal: :Tikrit Journal of Engineering Science 2022

In the design of earth dams, it must be considered that water leakage through dam generates upward and pore pressure, in addition to forces cause internal erosion, which has a direct influence on structural stability this system. Also, rising dropping level effect dam's face slope. One way solve these issues is installation core or horizontal drainage The present study relied GEO-Studio compute...

Journal: :Revue de géographie alpine 2008

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