نتایج جستجو برای: 1398
تعداد نتایج: 933 فیلتر نتایج به سال:
یک روش سریع و آسان میکرواستخراج قطره آلی منجمد شناور(solidified floating organic drop microextraction) همراه با کروماتوگرافی گازی و آشکارساز الکترون ربایشی (gc-ecd) برای جداسازی، تغلیظ و اندازه گیری مقادیر ناچیز ترکیبات آلی 2و5-دی کلرونیتروبنزن، 2و3-دی کلرونیتروبنزن و 2و6-دی کلرو-4-نیتروآنیلین در نمونه های آب به کار گرفته شد. در این مطالعه پارامترهای موثر بر سیستم استخراجی بهینه شدند. فاکتور تغ...
Doping heteroatoms such as nitrogen (N) and boron (B) into the framework of carbon materials is one most efficient methods to improve electrical performance carbon-based electrodes. In this study, N-doped has been facilely synthesized using a ZIF-8/polydopamine precursor. The polyhedral structure ZIF-8 effective surface-coating capability dopamine enabled formation with hollow structure. polyhe...
Background: The economic burden of TB in India is enormous as TB perpetuates and exacerbates poverty. Revised National Tuberculosis Control Programme (RNTCP) based on DOTS strategy is currently being implemented in India. The purpose of this study is to estimate the costs incurred by tuberculosis patients treated under RNTCP in a district in Tamilnadu where services are decentralized for diagno...
Geometric modelers typically define surfaces as images of closed polygonal regions under polynomial or rational maps, called patches. The images, also called patches, do not overlap but join along curves in lR . Differential topologists define surfaces as domains of invertible maps, also called patches, from lR to open sets in lR . The patches cover the surface by overlapping in open subsets. T...
Department of Computer Science, Purdue University, West Lafayette, IN 47907-1398 Department of Computer Science and Engineering, University of Minnesota, Minneapolis, MN 55455 {lnguyend,aref}@cs.purdue.edu, [email protected] Abstract In spatio-temporal applications, moving objects detect their locations via location-aware devices and update their locations continuously to the server. With the u...
هدف اصلی این پژوهش ارائه چارچوبی برای ارزیابی عملکرد شرکت بهرهبرداری قطار شهری مشهد بر مبنای کارت امتیازی متوازن و تکنیک تصمیمگیری چندمعیاره (بهترین ـ بدترین فازی) است. حاضر از نظر هدف، کاربردی روش، کمّی اسنادی جمعآوری دادههای کیفی اساس 15 خبره در طی مقطع زمانی بین سالهای 1396 تا 1398 صورت پذیرفت. 9 معیار منظر مالی، 16 مشتریان، 8 فرایند داخلی 14 رشد توسعه یادگیری طریق اسناد پژوهشهای پ...
In the data parallel programming style the user usually speciies the data parallelism explicitly so that the compiler can generate eecient code without enhanced analysis techniques. In some situations it is not possible to specify the parallelism explicitly or this might be not very convenient. This is especially true for loop nests with data dependences between the data of distributed dimensio...
The global carbon emissions from the tertiary sector have increased during last years, becoming a target for capture technologies. This study analyzes potential application of system (CCS) to usage biogas livestock waste treatment plant (LWTP) and solid biomass. proposed BECCS fulfils requirement energy demands LWTP generates electricity. CCS is sized consume produced selected operation paramet...
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