نتایج جستجو برای: room tempereture

تعداد نتایج: 98397  

Journal: :iranian journal of radiation research 0
l.a. sathish post graduate department of physics, government science college, bangalore – 560 001, india k. nagaraja department of physics, bangalore university, bangalore – 560 056, india

background: radon and its daughter product are a major source of natural radiation exposure, the measurement of radon concentration in dwellings is assuming ever increasing importance. it is known from recent surveys in many countries that radon and its progeny contributes significantly to total inhalation dose and is well established that radon when inhaled in large quantity causes lung disord...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده علوم 1390

abstract in first part of this project, the use of a new and biguanid-like catalyst supported on silica as a recyclable catalyst provides a new route for the synthesis of a variety of arylalkylidene rhodanine derivatives through knoevenagle reaction in at present of solvent at room temperature. rhodanine derivatives and especially arylalkylidene rhodanines have proven to be attractive compound...

Journal: :Journal of Chemical Education 2002

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده مهندسی مکانیک 1394

با توجه به الزام جدی صنایع داروسازی فعال در کشور به ارتقاء شرایط تولید خصوصا" در سیستم hvacبه عنوان اصلی ترین رکن این صنعت، موضوع این تحقیق مشتمل بر انجام شبیه سازی عددی جریان هوا با پارامترهای تحت کنترل در شرایط و فضای تولید در صنعت داروسازی ( اتاق تمیز/clean room) به لحاظ قابلیت کاربرد وپیاده سازی دراین صنعت حایزاهمیت می باشد . هدف از اجرای این تحقیق طراحی دریچه های ورودی و خروجی جریان هوای ا...

Journal: :the iranian journal of pharmaceutical research 0
rohollah ferdousi department of food technology research, national nutrition and food technology research institute, shahid beheshti university of medical sciences, tehran, iran. milad rouhi department of food science and technology, faculty of agriculture, university of tehran, karaj, iran. reza mohammadi students research committee, department of food science and technology, national nutrition and food technology research institute, faculty of nutrition sciences, food science and technology, shahid beheshti university of medical sciences, tehran, iran. amir mohamad mortazavian students’ research committee, department of food science and technology, national nutrition and food technology research institute, faculty of nutrition sciences, food science and technology, shahid beheshti university of medical sciences, tehran, iran. kianosh khosravi-darani department of food technology research, national nutrition and food technology research institute, shahid beheshti university of medical sciences, tehran, iran. aziz homayouni rad department of food science and technology, faculty of nutrition, tabriz university of medical sciences tabriz, iran.

in this research, the survival of probiotic microorganisms in yogurts stored at room temperature (cold chain interruption conditions) was studied. milk inoculated with yogurt bacteria (mixed culture of streptococcus thermophilus and lactobacillus delbrueckii ssp. bulgaricus) and a single probiotic culture (l. acidophilus la-5 or bifidobacterium lactis bb-12 or l. rhamnosus hn001 or l. paracasei...

Journal: :international journal of architecture and urban development 2015
nur hafizah ramle ab. aziz shuaib ramle abdullah olalere folasayo enoch mohd sukhairi mat rasat

malay home surroundings is varies in plants pattern as well as a variety of size. the plants speciescultivated own their particular reasons. malay house environment is so harmony with humans, mother nature alsoculture relationship has visualise a unique environmental design. in this accomplishing research, it will provide anunderstanding of plants adoption of malay house environment. environmen...

Journal: :journal of sciences, islamic republic of iran 2015
e. rezaee nezhad s. karimian s. sajjadifar

the magnetically recoverable fe3o4 nanoparticle and the supported brønsted acidic ionic liquid 1-methyl-3-(3-trimethoxysilylpropyl) imidazolium hydrogen sulfate (fe3o4-il-hso4) were synthesized and used as efficient magnetic catalysts for the regioselective thiocyanation of aromatic and heteroaromatic compounds at room temperature in water: ethanol. this procedure provided the target thiocyanat...

Journal: :international journal of nanoscience and nanotechnology 2011
v. taghvaei a. habibi-yangjeh m. behboudnia

simple, low temperature and environmentally benign green route is proposed for preparation of nanocrystalline zno in presence of a low-cost and halide-free room-temperature ionic liquid (rtil) by refluxing at 95 °c for 60 minutes. the x-ray diffraction (xrd) studies display that the products are well-crystallized in the form of wurtzite hexagonal. morphology of the as-prepared zno was character...

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