نتایج جستجو برای: electrical conductivity ec
تعداد نتایج: 264877 فیلتر نتایج به سال:
This study was designed to investigate the effects of different tillage systems on some parameters such as soil salinity (pH, EC, SAR), soil density and nutrients in a nested experimental design with three treatments (no tillage, reduced tillage and conventional tillage) and three replications. Chenaran city fields were selected as the case study areas. Result of the statistical analysis indica...
Accurate knowledge of spatial distribution of soil physical and chemical properties is needed for suitable management and proper use of rangelands in Masileh plain, Qom, Iran. In present study, for the spatial modeling of chemical and physical parameters such as sodium (Na), calcium (Ca), soluble potassium (K), magnesium (Mg), Electrical Conductivity (EC), Saturation Percentage (SP%), silt, cla...
Introduction: Water quality has directly related to personal and public health. Therefore monitoring of water supplies and theirs sanitary conditions is very important. The aim of this study was to investigate the chemical quality of drinking water in Khoy city (West Azarbaijan province, Iran) during 2008 and 2009. Materials & Methods: This resach was a descriptive study. All data of water qua...
Soil characteristics are the most powerful factors in desertification phenomenon. The purpose of this study was investigating soil characteristics as indices for evaluating desertification intensity. The most important indicators of the soil that affect desertification were selected in the present study. Soil samples were taken from Segzi desert vicinity located in the east of Isfahan city with...
Background and Objectives: ?????? Methods: ?????? Findings: ?????? Conclusion: ????? Coral ecosystems, like other natural habitats, are under effect by global warming. Every year we see the bleaching of corals in different parts of the world. Since the physical parameters of seawater are affected by meteorological phenomena, so in this study using ten-year data of oceanographic buoys, the ...
Transparent and conductive thin films of multi-walled carbon nanotube/ Ag nanowires were fabricated using spin coating technique. In order to improve the electrical conductivity and the optical properties, the layers were annealed from room temperature to 350 °C for 30 minutes. The measurements revealed that annealing caused electrical conductivity of fabricated thin layes to be improved. The o...
The accurate monitoring of soil salinization plays a key role in the ecological security and sustainable agricultural development semiarid regions. objective this study was to achieve best estimation electrical conductivity variables from salt-affected soils south Mediterranean region using Sentinel-2 multispectral imagery. In order realize goal, test carried out (EC) data collected central Tun...
The variations of the electrical conductivity with temperature and electric field of the ternary alloy of gallium, aluminium and arsenic (Al0.75Ga0.25As) with atomic compositions of 99/1 and 98/2 have been investigated. The electrical conductivity of the alloy increases with temperature according to the relation, ? = ?0 exp (??/kT). The activation energy calculated from this empirical relation ...
This paper describes the physico-chemical profile of perennial lake Govindgarh, Madhya Pradesh, where limnological studies were conducted during March 2020 to February 2022. Variables analysed from surface water tank temperature, transparency, pH, electrical conductivity, dissolved oxygen, alkalinity, hardness, chlorides, nitrates and phosphate. The seasonal variations these factors studied int...
This study aims to evaluate the efficiency of the concentration-number (C-N) fractal model for discrimination of soil horizon regarding the depth distribution profile. In this regard, soil parameters such as pH, organic carbon content, calcareous mineral content, electrical conductivity and available phosphorus of Ziarat forestland in Golestan Province, north of Iran, has been investigated. The...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید