نتایج جستجو برای: 400c and 300c
تعداد نتایج: 16827185 فیلتر نتایج به سال:
In this paper we present a new slot antenna with an embedded temperature sensor for remote sensing in harsh environment applications. When the antenna is illuminated with a plane wave it returns a signal. The returned signal’s frequency is modulated by the loaded capacitance formed by an array of MEMS bimorph (metal-dielectric) cantilevers. The MEMS cantilevers deflect downwards when the temper...
دراین کار، رفتار کروماتوگرافی گاز - جامد تعدادی از آلکانها، الکنها و هالوکربنها برروی آلومین اصلاح شده مطالعه شد. محلولهای اشباع از کلریدهای k+ , ca(ii), cr(iii),fe(iii) zn(ii) , cu(ii) , ni(ii) , co(ii) , mn(ii) , cu(ch3coo2) , cu(no3)2 , cuso4 , na+ و محلولهای آبی با مقادیر ph های مختلف بعنوان اصلاح کننده بکار گرفته شدند. مولکولهای جذب شونده در قسمت برهم کنشهای نمک اصلاح کننده جاذب مولکولهای ...
I. Food intake and rates of protein, lipid and energy deposition during growth were measured for lean and congenitally obese (fatty) Zucker rats offered from 34 d of age to slaughter at 66 d of age, one of six semi-synthetic diets containing casein (C) in the following amounts (g Clkg): 40C, moC, 150C, 3wC, 500C and 700C. 2. In Expt I, groups of four male rats were offered each diet to appetite...
Hyperbolic metamaterials show exceptional optical properties, such as near-perfect broadband absorption, due to their geometrically-engineered anisotropy. Many of proposed applications, thermophotovoltaics or radiative cooling, require high-temperature stability. In this work we examine Ag/a-Si multilayers a model system for the thermal stability hyperbolic metamaterials. Using combination nano...
A thorough experimental investigation was carried out to study the effect of some meteorological parameters on performance photovoltaics installed under guinea savannah atmosphere in Ogoja, Cross River State, Nigeria by in-situ measurement approach using a precision digital solar power meter, an accurate hygrometer, infrared gun thermometer and high photovoltaic smart panel maximum point tracke...
In the present study, efficiency of Annona senegalensis fiber to remove crude oil from aqueous solution was evaluated. The (CAS), retted (RAS) and bleach (PFAS) were subjected sorption studies optimize their capacity. results revealed that sorbent water is related weight, contact time, initial concentration temperature sorption. It found out increase in weight led capacity 3.99-5.25g/g, 5.51-7....
kochia (kochia scoparia l. schard) is an annual, halophyte and drought resistant plant that can be irrigated with saline water and a valuable source for forage under drought and saline ecosystem. in order to evaluate the germination characteristic of kochia under different temperatures and salinity stress levels, an experiment was conducted at physiology lab of ferdowsi university of mashhad, i...
Background and Aim: Cadmium (Cd) is one of the most toxic heavy metals in water that mostly enters the water cycle through industrial waste water. Silver nanoparticles have the capacity to remove heavy metals from the water resources through the mechanism of adsorption. The present study aimed at producing silver bio-nanoparticles and optimizing . Cd removal from aquatic solutions. Mat...
Background and Objective: Arsenic (As) is a highly toxic metalloid found in ground and surface waters. Arsenic contamination in drinking water leads to harmful effects on human health. In this study, the efficacy of Reverse Osmosis (RO) membrane technology was evaluated for arsenic removal from drinking water. Materials and Methods: This experimental study was carried out on RO membrane spiral-...
Nanometal oxides were extracted from cement factories wastes and employed to proliferate skin cancer cells using MTT (Methyl Thiazolyl Tetraolium) assay. assay results for cell line A375,for CaO NPs the best concentration was 200 μg/mL,The viability reduced 57.28% while IC50 (69.66) g/mL A375 normal WRL68 significantly higher (231.2 g/mL). The cytotoxicity of CaO: MgO: Fe2O3 NPs, at concentrati...
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