نتایج جستجو برای: mixing ratios of water classes including cloud water
تعداد نتایج: 21256595 فیلتر نتایج به سال:
Background and purpose: Using Water Quality Indices are necessary for monitoring the quality of water in various applications, including agriculture. This study aimed to assess the quality of Takab Sarugh river right branch by WILCOX index. Materials and methods: In this cross sectional study some quality parameters including water temperature, sodium, calcium, magnesium, total hardness, pH, e...
in this study, porous scaffolds from poly(d,l-lactic acid) have been prepared via liquid- liquid phase separation method in ternary system of polymer-1,4-dioxane-water. polymer dissolved in dioxane in 1.5, 2.5 and 5 % wt/v and the solvent/non-solvent ratios were 13/87, 15/85 and 17/83. cloud point curves prepared by visual turbidometry. in order to obtain porous scaffolds with inter-connected p...
We report a solvent-free synthesis of all silica Beta zeolite using a cheap organic template of tetraethylammonium bromide (TEABr). The method includes mixing, grinding and heating solid raw material in the absence of water solvent but the presence of zeolite seeds. The absence of water solvent significantly improves the efficiency of synthesis, while the addition of seeds remarkably enhances t...
This work empirically examines the dependence of entrainment-mixing mechanisms on the averaging scale in cumulus clouds using in situ aircraft observations during the Routine Atmospheric Radiation Measurement Aerial Facility Clouds with Low Optical Water Depths Optical Radiative Observations (RACORO) field campaign. A new measure of homogeneous mixing degree is defined that can encompass all ty...
The Lin-hail microphysics scheme is based on Lin et al. (1983) as modified by the Goddard Cumulus Ensemble Modeling Group (Tao and Simpson, 1993; Braun and Tao, 2000). It includes six classes of water species representing water vapor, cloud water, cloud ice, rain, snow and hail. The size distributions of the precipitating species (rain, snow and hail) are assumed to follow an exponential distri...
Organic compounds and liquid water are major aerosol constituents in the southeast United States (SE US). Water associated with inorganic constituents (inorganic water) can contribute to the partitioning medium for organic aerosol when relative humidities or organic matter to organic carbon (OM /OC) ratios are high such that separation relative humidities (SRH) are below the ambient relative hu...
Deterioration of concrete, which is mainly due to ignorance of environmental and service conditions, causes considerable costs for the construction industry. With this in mind, in this paper, results of investigation into the major causes of concrete deterioration in the Urumie Lake are presented. For the purposes of this investigation, samples were obtained by mixing two types of cement (OPC t...
Temperature and pressure were shown to vary significantly with solvent mixing, showing maxima at different solvent ratios. Acetonitrile/water mixing resulted in temperature reduction of solutions whereas methanol/water mixing caused temperature increases. On the other hand, maximum recorded chromatographic pressure of acetonitrile:water mixtures occurred at a solvent ratio of 1:6 compared with ...
an investigation into oral interaction in language classes: a conversation analytic point of view the aim of this thesis is to analyze the interaction between language teachers and students in english language institutes. this work is done in the context of yasuj city. learning another language, which is in most cases english, involves many variables. one of these variables is the linguistic...
the neogene intrusion masses in the noudeh-enghelab area located to the north of sabzevar ophiolite have cut the late cretaceous ophiolitic rocks, sedimentary- volcanic and eocene volcanic rocks and have been covered by pliocene and quaternary deposits. the margin is of lava with basalt, phyric andesite-basalt and andesite and the central parts (dome shaped) composed of phyric andesite-trachyan...
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