نتایج جستجو برای: isoconversional model
تعداد نتایج: 2104386 فیلتر نتایج به سال:
Out of autoclave (OoA) processing techniques, such as liquid composite moulding techniques (LCM) and, particularly, the vacuum-assisted resin infusion (VARI) technique, are being used, with increasing success, in replacement prepreg/autoclave technologies to produce structural aircraft/aerospace polymer parts, due its better cost effectiveness and competitiveness. This work aims embed Fibre Bra...
abstract: mineral scaling in oil and gas production equipment is one of the most important problem that occurs while water injection and it has been recognized to be a major operational problem. the incompatibility between injected and formation waters may result in inorganic scale precipitation in the equipment and reservoir and then reduction of oil production rate and water injection rate. ...
چکیده ندارد.
the purpose of this study was to examine the status of supervision on departments’ heads at ferdowsi university of mashhad (fum) and realize some applied themes to provide a fit model for supervising departments’ heads in fum. the method was case study under a research category aimed for applied one. using purposive sampling, interviews were conducted with top fum managers, head departments, an...
Ionic liquid-based N-octadecyl-N'-octadecyl imidazolium iodide functionalized layered double hydroxide (LDH-IM) was synthesized for manufacturing high-performance epoxy nanocomposites. Nonisothermal differential scanning calorimetry (DSC) performed to study cure kinetics of reinforced قث with LDH and LDH-IM. Incorporation Mg-Al-CO3 into hindered the curing reaction, as detected by dimensionless...
the aim of this thesis is an approach for assessing insurer’s solvency for iranian insurance companies. we use of economic data with both time series and cross-sectional variation, thus by using the panel data model will survey the insurer solvency.
توسعه و افزایش تولید صنایع و در پی آن رشد اقتصادی و اجتماعی یک جامعه در قرن جدید، با خودکار کردن روندهای تولید گره خورده است. یکی از اجزای خودکار ساختن صنایع، استفاده از روباتها در چرخه تولید به منظورهای مختلف می¬باشد؛ رنگ پاشی، جابجایی، نصب قطعات و جوشکاری بخش کوچکی از فضایی است که به روباتهای کارا نیازمند است. پس از استفاده فراوان از روباتهای سرال در صنایع و انجام پژوهشهای پایه¬ای بر روی طراح...
The combustion front is a crucial parameter in determining the efficiency of situ techniques during enhanced oil recovery. Nowadays, catalytic systems are widely believed to be an efficient tool stabilize front. This study aimed investigate synthesis and activity manganese (II) oxide nanoparticles high-temperature oxidation heavy oils. high low-temperature regions were investigated this study. ...
In connection to present energy demand and waste management crisis in Pakistan, refuse-derived fuel (RDF) is gaining importance as a potential co-fuel for existing coal fired power plants. This research focuses on the co-combustion of low-quality local with RDF mean reduce environmental issues terms strategy. The combustion characteristics kinetics coal, RDF, their blends were experimentally in...
In the present work, kinetic and thermodynamic analysis of ficus wood was carried out using thermogravimetric (TGA). Thermal degradation has been evaluated under dynamic conditions from 373 K to 1173 at heating rates 5, 10, 20, 50 K.min?1. The performed isoconversional methods (Friedman (FR), Flynn-Wall-Ozawa (FWO) Vyazovkin (VYA)) integral master-plots method estimate triplets. data were used ...
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