نتایج جستجو برای: pm lubricants
تعداد نتایج: 37636 فیلتر نتایج به سال:
هدف از انجام این پژوهش، آسیب شناسی نظام مدیریت منابع انسانی در یک شرکت فعال در حوزه ی ict در استان اصفهان است. برای آسیب شناسی، از یک الگوی سه مرحله ای بهره گرفته شده است. مرحله ی نخست، شامل سنجش نوع تفکر مدیران نسبت به منابع انسانی است که ابزارگردآوری داده ها در این مرحله مصاحبه نیمه ساختارمند است. مرحله ی دوم، شامل بررسی راهبرد و سامانه های مدیریت منابع انسانی است که اطلاعات این مرحله از طریق...
Introduction: Nowadays, the cement industry is regarded as one of the most important air pollution industries globally. This study aimed to simulate the emission of NOx, CO, SO2, and PM pollutants caused by the Sabzevar Cement Factory chimney by SCREEN3 software. Materials and Methods: In this study, the SCREEN3 software was employed for the distribution of NOx, CO, SO2, and PM pollutants. Th...
A variety of hydrofluorocarbon (HFC) compounds, both as pure substances and mixtures, are being developed as alternative refrigerants to replace the exsting chlorofluorocarbons and hydrofluorocarbons which have been linked to stratospheric ozone depletion. The use ofHFC's in refrigeration systems will require new lubricants, and polyolesters are being widely promoted as the lubricant of choice ...
IDENTIFICATION OF A MARKET Developing a new market for an established international crop like canola (Brassica napus L., Brassica rapa L., Brassicaceae) requires significant care and study. Canola has been identified by several authors as a highly desirable food oil. Canola oils are relatively rich in monounsaturated fatty acids and with small percentages of both saturated and polyunsaturated f...
This paper reviews the effects of lubricant additives and base stock used in metal belt continuously variable transmissions (CVT) fluids on the CVT transmission torque capacity. Additive formulation composed of phosphorus anti-wear agent, calcium detergent, and dispersant improved the friction coefficient between the metals. The analysis on the post-test surface suggests that the friction behav...
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