نتایج جستجو برای: silt percent
تعداد نتایج: 100411 فیلتر نتایج به سال:
in civil engineering concrete is a material combined of hydraulic cement, sand, gravel and water. gravel and sand compose 60 to 70 percent of concrete. these aggregates support compression force of concrete. cement paste acts as glue to stick grain together. in bushehr factories producing aggregates do not operate according to astm standards, so that fineness modulus (fm) of the produced sands ...
Upon channel bars or point bars within the lows of the Yellow River, a new sedimentary structure, named 'silt mushroom', has been observed. The process of their formation is interpreted to be via the ice process. The name, the silt mushroom comes from their figurative form. This is because they look somewhat similar to mushroom's in size and shape; being in the range of 1 to 10 cm in diameter, ...
Despite their limited put/get interface, simple hosted storage services are becoming very popular. Many companies and individuals are using them to store and backup data. Recent work has demonstrated that it is even possible to build file systems on top of such abstractions. However, the available API lacks some features that could prove beneficiary in building distributed storage systems on to...
The aim of this study was to introduce the Karganrood River as one of the safe routes for releasing sturgeon fry. Karganrood River is located in the west of Gilan province in Talesh city. In the river, 3 sampling stations were considered. The range of changes in dissolved oxygen was 8.21 to 8.87 mg/l. The pH value ranged from 9 to 9.43. The amount of ammonia in station 3 was highest and in stat...
Soil analyses and measurements with the Portable In Situ Wind Erosion Laboratory (PI-SWERL) were conducted on 16 soil types in an area heavily affected by off-road vehicle (ORV) driving. Measurements were performed in ORV trails as well as on undisturbed terrain to investigate how ORV driving affects the vulnerability of a soil to emit PM10 (particles<10microm), during the driving as well as du...
Three studies conducted in Alabama evaluated impacts associated with a clear cut harvest in three physiographic regions. Machine impacts were assessed via tabulation of soil disturbance classes, measurement of bulk density and soil strength, or a combination of the two. Soil disturbance classes were similar among all locations with untrafficked areas comprising approximately 20 percent of the h...
The saturation percentage (SP) of soils is an important index in hydrological studies. In this paper, artificial neural networks (ANNs), multiple regression (MR), and adaptive neural-based fuzzy inference system (ANFIS) were used for estimation of saturation percentage of soils collected from Boukan region in the northwestern part of Iran. Percent clay, silt, sand and organic carbon (OC) were u...
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