نتایج جستجو برای: dc plating

تعداد نتایج: 64992  

Journal: :the archives of bone and joint surgery 0
anil gupta head of department orthopedics & spinal injury govt medical college. jammu rashid anjum government medical college jammu. jammu & kashmir navdeep singh govt medical college jammu shafiq hackla government medical college jammu

background:  fractures of the distal third of the tibia are mostly associated with a fibular fracture that often requires fixation. the preferred treatment of distal tibial fracture is the minimally invasive percutaneous plate osteosynthesis  (mippo) procedure. however, there are no clear cut guidelines on fixation of the fibular fracture and currently most orthopedic surgeons use a plate osteo...

The plating industry is one of the main toxic chemicals consumers, which uses various chemicals, including solvents, acids, bases, cleansers, sophisticated organic ingredients, and metal salts of cadmium, nickel and chromium. Due to the growing production of industrial waste in spite of actions related to these wastes’ management, no comprehensive pattern was introduced at different levels. Thi...

1996
A. Lee Battershell

This is an analysis of different approaches in the use of technology by Boeing and DoD to determine how they may have affected development time for the C-17 and the Boeing 777. Boeing’s focus on cost, schedule, performance, and market competition is contrasted to DoD’s focus on performance. The paper concludes that the mere existence of a technology should not obscure (a) the impact its maturit...

Farideh Tabatabaei yazdi Hassan Nakhchian, Mohebbat Mohebbi Seyed Ali Mortazavi

Objective:Mold contamination of cakes and the possibility of mold growth can pose a serious health problem. Bakery products include various ingredients, which regularly contain molds. These microorganisms on cakes can come from the air, contaminated packaging materials and other sources.Methods: In this study, a total of 500 fungal isolates representing 36 species, were identified from cake sam...

Hajir Gharati, Mehdi Ramezan Shirazi, Seyed Abas Behgoo,

  Abstract   Background: The tibial diaphyseal fractures are the most common type of long   bone fractures encountered by most orthopedic surgeons. In accordance with descriptive indices of tibia fractures on the basis of their location in the bone, distal tibia   fractures have the second incidence of all tibia fractures after the middle tibia fractures.   The purpose of the study was to asses...

Journal: :acta medica iranica 0
mohammad naderi infectious diseases and tropical medicine research center, zahedan university of medical sciences, zahedan, iran. mohammad hashemi cellular and molecular research center, zahedan university of medical sciences, zahedan, iran. and department of clinical biochemistry, school of medicine, zahedan university of medical sciences, zahedan, iran. navid soroush infectious diseases and tropical medicine research center, zahedan university of medical sciences, zahedan, iran. shadi amininia department of clinical biochemistry, school of medicine, zahedan university of medical sciences, zahedan, iran. mohsen taheri genetics of non-communicable diseases research center, zahedan university of medical sciences, zahedan, iran.

there are conflicting results concerning dc-sign and dc-signr vntr polymorphisms. the present study aimed to evaluate the possible association between dc-sign as well as dc-signr vntr polymorphisms and pulmonary tuberculosis (ptb) in a sample of iranian population. this case-control study was done on 171 ptb and 161 healthy subjects. the variants were detected by polymerase chain reaction (pcr)...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز 1389

در سال های اخیر به موازات افزایش تحقیقات در مورد پیل سوختی در زمینه های مختلف، مطالعه روی مبدل های الکترونیک قدرت نیز افزایش یافته است. مبدل های به کار رفته باید بر اساس نیازها و مشخصه های پیل سوختی طراحی و مورد استفاده قرار گیرند. از جمله نیازهای پیل سوختی، کشیده شدن جریان dc از آن است به طوری که درصد ریپل سوار بر این جریان پایین و نیز دارای فرکانس بالایی باشد. در این صورت بازده و طول عمر مفید...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه گیلان - دانشکده فنی 1391

چکیده ندارد.

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی خواجه نصیرالدین طوسی - دانشکده برق و کامپیوتر 1391

در بسیاری موارد نیاز به تغییر ولتاژ dc داریم. برای نیل به این هدف مبدل های dc-dc ایجاد شدند. مبدل flyback یکی از انواع این مبدل های dc-dc است که قابلیت افزایش و کاهش ولتاژ را دارد. یکی از مزایای این مبدل ایزوله بودن سمت اولیه و ثانویه به دلیل استفاده از ترانسفورماتور است. هدف این پروژه طراحی یک مبدل dc-dc است که ولتاژ خروجی آن بین 0 تا 800 ولت با 1% خطا باشد. حداکثر جریان خروجی 80 میلی آمپر است...

2003
Beverly Newton Edward Kaiser

New copper plating bath chemisties are being developed to meet the emerging need of plating copper into submicron features on semiconductor wafers. These chemistries are designed to provide a fast, efficient, fill for even the most challenging wafer terrain. It has been found that maintaining the concentration of the additives in these plating baths at certain levels is critical to the performa...

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