نتایج جستجو برای: and low slope generally
تعداد نتایج: 16962394 فیلتر نتایج به سال:
Range suitability and its grazing capability are the most important criteria in rangeland analysis and monitoring. Determination and monitoring of factors affecting on range suitability and diagnosis of them are important .All range ecosystem components affect range suitability. Which among them physical and vegetational factors, forage production, water resources and sensitivity to erosion wer...
The erosion is one of the waster factors of land sources. Understanding of erosion danger provides possibility of identifying critical regions and priority of administrative and protective plans. The aim of this research is providing of soil Endanger map by GIS, RS and multi criteria division systems in Doab basin of Lorestan province. For purpose, data of 8 important factors in soil erosion in...
In recent decades, low-yielding rainfed farms have become known as the main sources of sediment production and soil erosion in the country. Therefore, more research is needed on the factors affecting erosion and sediment production in these areas. This research was carried out with the aim of studying the effects of slope and rainfall intensity on erosion between rainbow trout in test farms in ...
Antenatal screening for postnatal depression: a systematic review. QUESTION: What is the sensitivity and specificity of antenatal screening tools developed to predict depression following childbirth? Design Systematic review. Published studies were eligible if they assessed any antenatal instrument, or combination of instruments, to classify women as " at risk " or " not at risk " of postnatal ...
this study aims to investigate and optimize the effects of the main parameters including the particle size, gravity and magnetic separation combination, high gradient magnetic separation, magnetic field intensity, shaking table slope, washing water flow, and electrostatic separation upon the rare earth element (ree) recoveries from iron mine waste. the electron microprobe showed that high amoun...
Abstract Based on data from the Center for Volcanology and Geological Hazard Mitigation in April 2021, South Padang District has potential high land movement vulnerability. This is due to intensity of rainfall, geological conditions area generally a hilly area. The location Padang, especially Gado-Gado Hill area, residential tourist attraction. Therefore, it necessary know vulnerability minimiz...
in this project, some new polyaspartimides, (pas)s, have been synthesized form michael addition reaction between new synthetic bismaleimide (bmi) and some aromatic diamines. a characteristic property of this polyaspartimides is a pendent carboxylic group, which introduced to these polymers from new bismaleimide. bismaleimides (bmi) is one of the interesting compounds, which can be self-polymeri...
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