نتایج جستجو برای: sand percent

تعداد نتایج: 125238  

2009
Benjamin Radford

That tired Ten-Percent claim pops up all the time. Last year, national magazine ads for U.S. Satellite Broadcasting showed a drawing of a brain. Under it was the caption, "You only use 11 percent of its potential." Well, they're a little closer than the ten-percent figure, but still off by about 89 percent. In July 1998, ABC television ran promotional spots for "The Secret Lives of Men," one of...

Journal: :Inf. Process. Manage. 2007
Robert M. Losee

An information retrieval performance measure that is interpreted as the percent of perfect performance (PPP) can be used to study the effects of the inclusion of specific document features or feature classes or techniques in an information retrieval system. Using this, one can measure the relative quality of a new ranking algorithm, the result of incorporating specific types of metadata or folk...

Journal: :International Journal of Sustainable Construction Engineering and Technology 2022

The goal of this study is to determine the efficacy plants in treatment municipal wastewater (MWW) utilizing aquatic plant common reed, also known as Phragmites australis. Two glass basins with dimensions (60 cm x 26 cm) and a height have been developed for purpose (30 cm). In investigation, two were employed: one served reference, while other was used conduct tests using synthetic actual city ...

Journal: :International Journal of Thermophysics 2023

The surrounding (backfill) materials around the underground power cable systems are essential for dissipating heat away from it, during exertion phases. dissipation restrains thermal instability and risk of progressive drying backfill materials, thus reducing stress on cable. Thermal indicates reduction in properties (conductivity or diffusivity) due to migration moisture because accumulation. ...

Journal: :Japanese Journal of Transfusion and Cell Therapy 2009

Journal: :مرتع و آبخیزداری 0
مهدی وفاخواه دانشیار گروه آبخیزداری، دانشکدة منابع طبیعی، دانشگاه تربیت مدرس همزه سعیدیان دکتری آبخیزداری، دانشکدة منابع طبیعی، دانشگاه تربیت مدرس

erosion and sediment movement phenomena are one of the most complex issues in management of rivers drainage areas that in water projects are very important. that its measurement wants high time and cost. issue of surface runoff in river basin is a complex issue that human knowledge and understanding about its physical laws a viewpoint of some mathematical formulas is limited. in this study to i...

Wild pistachio forests in terms of the harvesting of various types of products and in terms of energy production and fuel wood are severely exposed to destruction. One of the effective methods for preserving and developing these forests is helping them with artificial regeneration. The purpose of this study was the most appropriate Irrigation, sowing depth and seed cover for seed of Wild pistac...

Journal: :Journal of dairy science 2008
M Norring E Manninen A M de Passillé J Rushen L Munksgaard H Saloniemi

This experiment compared the effects of sand and straw bedding in free stalls on resting time, cleanliness, hock injuries, and hoof health of dairy cows and tested whether cow preferences for a bedding material depended on the familiarity with the material. A total of 52 dairy cows were kept either on straw bedded concrete stalls or sand stalls for at least 21 wk. The lying behavior was observe...

2009

A recently calibrated urban runoff model, the Source Loading and Management Model (SLAMM), is used to compare the cost-effectiveness of using source area and regional stormwater treatment practices. The demonstration is done for the totally urbanized Lake Wingra watershed in Madison, Wisconsin. The goal is to retrofit practices that are able to reduce the annual total suspended solids load by 4...

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