نتایج جستجو برای: مدل air q

تعداد نتایج: 445349  

In this study, the effect of some processing parameters on bulk density, particle density, particle size and some of powder reconstruction properties such as dispersibility, Wettability and water solubility index of spray dried barberry (Berberis vulgaris) juice powders were investigated. A Pilot Spray Dryer (Two- Flow nozzle, counter- current, one cyclone) was employed for the spray d...

Atefeh ghollasi Farideh Tabatabaei Yazdi, Mehdi Varidi Mohebbat Mohebbi

In this study, the effect of some processing parameters on bulk density, particle density, particle size and some of powder reconstruction properties such as dispersibility, wetability and water solubility index of spray dried barberry (Berberis vulgaris)  juice powders were investigated. A Pilot Spray Dryer (Two- Flow nozzle, counter- current, one cyclone) was employed for the spray drying pro...

Natural convection heat transfer was investigated experimentally in a concentric-cylinders annulus. To enhance the rate of heat transfer, pin fins were installed on the surface of the inner cylinder. Two fin arrangements were employed, namely, staggered and in-line arrangements. The length of the fins varied from 2 to 8 cm and the Rayleigh number Ra changed in the range from 5 x 105  to 5 x 106...

Journal: :iranian journal of public health 0
masoud mehrpour 1. dept. of neurology, iran university of medical sciences , tehran, iran. narges sadat shams-hosseini 2. dept. of occupational and environmental medicine, center research of occupational disease; firoozgar clinical research developmental center, tehran university of medical sciences , tehran, iran. saeed rezaali 3. sina ms research center, sina hospital, islamic azad university, tehran medical branch , tehran, iran. mohammad ali sahraiian 4. dept. of neurology, sina hospital, tehran university of medical sciences , tehran, iran. sara taki 5. firoozgar clinical research developmental center, iran university of medical sciences , tehran, iran.

multiple sclerosis (ms) is one of the autoimmune diseases with an unknown cause. the aim of this study was to explore the link between air quality and ms relapses in patients who suffer from ms.this time-series study was conducted on patients registered at the iranian multiple sclerosis society in 2011-2012. they were randomly selected from patients lived in tehran in the last five years, and h...

ژورنال: :مهندسی صنایع و مدیریت 0
سیدحمیدرضا پسندیده دانشکده مهندسی صنایع و مکانیک- دانشگاه آزاد اسلامی واحد قزوین

مدل مقدار اقتصادی تولید (e p q) یکی از مدل های کلاسیک کنترل موجودی است که کاربرد گسترده یی دارد. این مدل دارای فرضیات مختلفی است که استفاده از آن را در شرایط واقعی محدود می کند. هدف این پژوهش توسعه ی مدل مقدار اقتصادی تولید است و فرض تحویل سفارش با نرخ ثابت و پیوسته را در نظر نمی گیرد، و چنین فرض می کند که سفارش را می توان به صورت بسته های چندتایی تحویل گرفت. در شرایط جدید، هزینه های e p q محاس...

1998
Yong-Jun Kim Mark G. Allen

As operation frequencies and performance requirements of wireless devices increase, the resultant demands on the performance of passive components also increase. Miniaturization of inductive components for high frequency has been a key research area to address this issue; however, in general, miniaturized integrated inductors can suffer from low Q factors and/or self-resonant frequencies when c...

Journal: :Journal of applied physiology 2009
Lindell K Weaver Steve Howe Gregory L Snow Kayla Deru

Divers and hyperbaric chamber attendants breathe hyperbaric air routinely. Hyperbaric oxygen (HBO(2)) is used therapeutically frequently. Although much is understood about the hemodynamic physiology and gas exchange effects during hyperbaric air and HBO(2) exposure, arterial and pulmonary arterial (PA) catheter data, including blood gas values during hyperbaric air and HBO(2) exposure of normal...

ژورنال: :علوم آب و خاک 0
فهیمه محمدزاده f. mohamadzade dept. of water eng., college of agric., isf. univ. of technol., isfahan, iran.گروه مهندسی آب، دانشکده کشاورزی، دانشگاه صنعتی اصفهان مهدی قیصری m. gheysari dept. of water eng., college of agric., isf. univ. of technol., isfahan, iran.گروه مهندسی آب، دانشکده کشاورزی، دانشگاه صنعتی اصفهان اسماعیل لندی e. landi dept. of water eng., college of agric., isf. univ. of technol., isfahan, iran.گروه مهندسی آب، دانشکده کشاورزی، دانشگاه صنعتی اصفهان

هدف از این تحقیق بررسی عرض خیس شده در خاک سنگریزه ای تحت تأثیر دبی قطره چکان و مدت زمان آبیاری و ارزیابی مدل های توسعه داده شده تخمین عرض خیس شده در پژوهش های پیشین می باشد. تیمارهای آزمایشی شامل سه زمان آبیاری 4 و 8 و 12 ساعت (به ترتیب t، t و t) و سه دبی قطره چکان 2، 4 و 8 لیتر بر ساعت (به ترتیب q، q و q) با سه تکرار بود. پس از گذشت 24 ساعت از آبیاری عرض خیس شده ایجاد شده توسط هر قطره چ...

Journal: :The Review of scientific instruments 2011
M Hübner S Welzel D Marinov O Guaitella S Glitsch A Rousseau J Röpcke

A compact and transportable three channel quantum cascade laser system (TRIPLE Q) based on mid-infrared absorption spectroscopy has been developed for time-resolved plasma diagnostics. The TRIPLE Q spectrometer encompasses three independently controlled quantum cascade lasers (QCLs), which can be used for chemical sensing, particularly for gas phase analysis of plasmas. All three QCLs are opera...

Journal: :CoRR 2007
M. C. Hsieh D. K. Jair Y. K. Fang C. S. Lin

In this paper, deep sub-micron CMOS process compatible high Q on chip spiral inductors with air gap structure were designed and fabricated. In the design the electromagnetic solver, SONNET, and the finite element program, ANSYS, were used for electrical-characteristics and maximum mechanical strength, respectively. The copper wires were capped with electroless Ni plating to prevent the copper f...

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