نتایج جستجو برای: conversion industries

تعداد نتایج: 158940  

Thermal energy is one of the most important issues in most industries, because conversion of energy from fossil fuels to thermal energy occurs in almost all conventional industries. Therefore, considering the lack of fossil resources and the increasing pollution of human environments, attention to the proper use of thermal energy should be considered by researchers. In recent years, attention h...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان - دانشکده علوم پایه 1391

اولین مرحله کار تعیین دمای مناسب برای انجام واکنش است، دمای مطلوب دمایی ست که بیشترین مقدار اتیلن و پروپیلن را همزمان با کمترین مقدار متان بدهد. داده ها به شرح زیر است: جدول3-3. اثر دمای واکنش بر عملکرد کاتالیست ساخته شده به روش سل- ژل reaction temperature (? c) conversion (%) selectivity (%) ch4 c2h4 c2h6 c3h6 c3h8 c4+ 100 20 60 - - - 40 - 120 30 51.2 4.9 14.2 5.8 23.9 - 140 42...

Journal: :Journal of physics 2022

Abstract Polymer Electrolyte is novel material as renewal energy sources are widely used in the industries. main parts of storing/conversion devices. In this review article polymer electrolyte discussed. report various advantage, application, availability, categories polymer, approaches, and sample preparation techniques also described. batteries, fuel cells, supercapacitors, Dye-sensitizes sol...

Journal: :iranian journal of public health 0
d. parvizpour p. meshgi

the paper is based on a study conducted in three different industries on 84.4 on their employees to determine the effect of over all noise intensity, length of employment and rest periods among them. it was found that the mentioned factors have direct effect on the induced hearing loss among the exposed workers. high noise level and long period of employment adversely affect the hearing ability...

Journal: :Catalysts 2023

In the present work, we studied catalytic performance (activity and selectivity) of Pt supported on carbon systems modified with tin in glycerol oxidation H2O2 as oxidising agent at atmospheric pressure, 60 °C, base-free conditions. The conversion obtained monometallic catalyst was 37% remained unchanged addition Sn a ratio Sn/Pt = 0.4. two bimetallic PtSn catalysts were able to oxidise commerc...

Journal: :nanomedicine journal 0
omolfajr nakhaei department of physics, ferdowsi university of mashhad, mashhad, iran faculty of science, nanotechnology research center, ferdowsi university, mashhad, iranسازمان اصلی تایید شده: دانشگاه فردوسی (ferdowsi university) nasser shahtahmassebi department of physics, ferdowsi university of mashhad, mashhad, iran faculty of science, nanotechnology research center, ferdowsi university, mashhad, iranسازمان اصلی تایید شده: دانشگاه فردوسی (ferdowsi university)

objective(s): this paper describes synthesispolyvinyl alcohol/caf2:er nanofibers because of  its  photoluminescence properties.materials and methods:  first, caf2:er nanocomposite synthesized with co-precipitation method. in order to prepare polyvinyl alcohol (pva)/caf2:er nanofibers, caf2:er nanocomposites were added to the polyvinyl alcohol (pva) polymer. pva/caf2:er composite nanofibers were...

Journal: :تحقیقات نظام سلامت 0

background: in process industries, production, storage, transportation, usage and disposal of chemicals are inherently dangerous and the risk of catastrophic accident occurrence is potentially high. to improve safety level in these industries, establishment of process safety management (psm) system is considered as the most effective measures. this study was conducted to determine the degree of...

Journal: Journal of Herbal Drugs 2013
Hossein Ansari Nik Mahmod Ghazaghi, Omid Fani Makki,

Background & Aim: Medicinal plants is very potential to be used as a supplementary feed as well as feed additive in broilers.This experiment was conducted to investigate the effects of milk thistle (MT) and thyme seeds (TS) on the performance in broilers. Experimental: In this study, 160 one-day-old (Ross 308) male broiler chicks were divided randomly into four major groups with 4 replicates b...

2017

Research Employers and Industries Pace University Library [1] Recommended databases are: "Business and Company Resource Center", "Business Source Premier", “Lexis-Nexis Academic” and “Mergent Online”. If you are a current student, you may enter your library bar code to use many of the databases. For alumni: access to the library databases will require obtaining an alumni ID card which must be p...

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