نتایج جستجو برای: feedwater analysis

تعداد نتایج: 2824283  

Journal: :Renewable Energy 2021

Hydrothermal carbonisation (HTC) is recognised as an environmentally advantageous method to pre-treat biomass feedstocks. This study examined the hydrothermal of two lignocellulosic biomasses at different pH levels. Lower promoted hydrolysis, dehydration and decarboxylation reactions, which led more condensed aromatic structures hydrochars. These observations were confirmed by means elemental a...

Journal: :E3S web of conferences 2022

In order to improve the thermal economic performance of coal-fired units in power industry, supercritical above 600MW generally adopt method installing external steam cooler system utilization reheat. view difficulties and problems calculating three extraction flow high pressure heater by traditional method, this paper, a new calculation medium at inlet is proposed based on fluid dynamics. This...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه زنجان - دانشکده علوم انسانی 1389

abstract this study evaluated and compared medical terminology and english for the students of medicine (ii) as two representatives of the textbooks available on the iranian market for teaching english to the students of medicine. this research was performed on the basis of a teacher’s and a number of students’ attitudes and the students’ needs analysis for two reasons: first, to investigate...

Journal: :Bioresources and Bioprocessing 2021

Abstract Hydrochar a carbon-rich material resulting from hydrothermal carbonization of biomass, has received substantial attention because its potential application in various areas such as carbon sequestration, bioenergy production and environmental amelioration. A series hydrochars were prepared by metal chloride-assisted rice husk characterized elemental analysis, zeta potential, X-ray diffr...

Journal: :Journal of the Atomic Energy Society of Japan / Atomic Energy Society of Japan 1995

Journal: :Journal of Mechanics 2023

Abstract This present paper summarizes applying weld overlay repair on the feedwater nozzle in a boiling water reactor, and evaluates influence structure fracture mechanics of component. The requirements for utilizing full structural overlay, including design, effects welding residual stresses (WRSs), impacts shrinkage, prediction potential flaw growth, ASME Code Section III design evaluations,...

Journal: :Frontiers in chemical engineering 2021

The use of algal biotechnologies in the production biofuels, food, and valuable products has gained momentum recent years, owing to its distinctive rapid growth compatibility be coupled wastewater treatment membrane photobioreactors. However, fouling is considered a main drawback that offsets benefits applications by heavily impacting operation cost. Several control strategies have been propose...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تهران 1355

مقایسه دو زبان فارسی و فرانسه در سطح آوایی موضوع پژوهش حاضر است . این مقایسه نشان داده است که زبان فرانسه دارای 18 همخوان و 10 واکه دهانی و 3 واکه غنه است . واکه های دهانی با مشخصات پیشین ˆ پسین و بازی ˆ بستگی و واکه های غنه با مشخصات غنه، لبی و پیشین ˆ پسین طبقه بندی شده اند. در زبان فارسی و فرانسه دیفتانگ وجود ندارد، د حالیکه در فرانسه قدیم نه تنها واکه های دوتایی بلکه واکه های سه تایی نیز وج...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه ارومیه 1377

the methods which are used to analyze microstrip antennas, are divited into three categories: empirical methods, semi-empirical methods and full-wave analysis. empirical and semi-empirical methods are generally based on some fundamental simplifying assumptions about quality of surface current distribution and substrate thickness. thses simplificatioms cause low accuracy in field evaluation. ful...

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