نتایج جستجو برای: آنتن های bts

تعداد نتایج: 479395  

Journal: :CoRR 2012
Sadeque Reza Khan Siddique Reza Khan Arifa Ferdousi

Although Cellular communication is getting more and more popular in our country present days, but its network improvement is hampered by the crysis of electricity. The recent decision of present Government is that they will not provide any electricity from the grid to any new BTS rooms of any Celluler operator companies like Grammen Phone, Robi, Airtel etc. These companies have to develop their...

Journal: :Transfusion and apheresis science : official journal of the World Apheresis Association : official journal of the European Society for Haemapheresis 2014
Sofia Lejon Crottet Christine Henny Stefan Meyer Franziska Still Martin Stolz Jochen Gottschalk Kathrin Neuenschwander Behrouz Mansouri Taleghani Peter Gowland Beat M Frey Stefano Fontana Hein Hustinx Christoph Niederhauser Christoph Gassner

Starting in 2013, blood donors must be tested at least using: (1) one monoclonal anti-D and one anti-CDE (alternatively full RhCcEe phenotyping), and (2) all RhD negative donors must be tested for RHD exons 5 and 10 plus one further exonic, or intronic RHD specificity, according to the guidelines of the Blood Transfusion Service of the Swiss Red Cross (BTS SRC). In 2012 an adequate stock of RHD...

Journal: :Polish journal of veterinary sciences 2015
A Dziekońska Ł Zasiadczyk M Lecewicz R Strzeżek M Koziorowska-Gilun L Fraser M Mogielnicka-Brzozowska W Kordan

The aim of this study was to investigate the effects of storage of semen in different commercial extenders on the pre-freezing and post-thawing quality of boar spermatozoa. Semen was diluted in BTS, Androhep (AH) and Gedil (GD), stored for 24 h at 17°C, and then frozen in accordance with the cryopreservation protocol. Analyses of the quality of spermatozoa included: motility, normal apical ridg...

Journal: :Wireless Networks 2005
Hongyi Wu Swades De Chunming Qiao Evsen Yanmaz Ozan K. Tonguz

In this paper, we study the hand-off performance of a wireless system with heterogeneous technologies called iCAR (Integrated Cellular and Ad hoc Relaying). In iCAR, hand-offs can occur not only from a Base Transceiver Station (BTS) to another BTS, but also from a BTS to a so-called Ad hoc Relaying Station (ARS) in the form of relaying, as well as from an ARS back to a BTS. The latter two types...

Journal: :Postgraduate medical journal 2002
D Mendis T El-Shanawany A Mathur A E Redington

In 1993, the British Thoracic Society (BTS) issued guidelines for the management of spontaneous pneumothorax. The aim of this study was to determine the level of adherence to and awareness of these guidelines at a London teaching hospital. A retrospective case note audit of 59 episodes of acute spontaneous pneumothorax was performed. In patients undergoing intervention, the initial procedure wa...

Journal: :Intelligent Automation and Soft Computing 2023

Mobility support to change the connection from one access point (AP) next (i.e., handover) becomes of important issues in IEEE 802.11 wireless local area networks (WLANs). During handover, channel scanning procedure, which aims collect neighbor AP (NAP) information on all available channels, accounts for most delay time. To reduce a beacon frame transmission scheme (N-BTS) was proposed seamless...

سیستمهای موج میلیمتری دارای باند فرکانسی گستردهای میباشند. آنتنهای بازتابنده، به دلیل پوشش فرکانسی وسیع و بهره و بازدهی بالا، گزینه مناسبی برای استفاده در این سیستمها هستند. در این مقاله، مشخصات آنتنهای بازتابنده سهموی و اصول طراحی آنها ارائه شده است. برای این منظور، ابتدا هندسه بازتابنده سهموی بررسی و سپس مراحل طراحی آنتن کاسگرین و تغذیه آن مورد بحث و بررسی قرار میگیرد. در ادامه، بر اساس طراحی...

ژورنال: :مهندسی برق دانشگاه تبریز 0
داود بصائری دانشگاه صنعتی مالک اشتر - مجتمع دانشگاهی مهندسی برق و الکترونیک سیدمحمدجواد رضوی دانشگاه صنعتی مالک اشتر - مجتمع دانشگاهی مهندسی برق و الکترونیک سیدحسین محسنی ارمکی دانشگاه صنعتی مالک اشتر - مجتمع دانشگاهی مهندسی برق و الکترونیک

در این مقاله اثر صفحه زمین محدود آنتن بر الگوی تشعشعی آن تحلیل و بررسی شده است. الگوی تشعشعی چند نمونه آنتن تک قطبی سیمی ساده و یک آنتن تک قطبی خط پیچ دار تیغه ای شکل -که با المان های فشرده بارگذاری شده و پهنای باند 30-500 mhz را پوشش می دهد- با صفحه زمین های محدود با روش های تحلیلی تفرق هندسی (gtd) و جریان معادل لبه (eec) محاسبه شده اند. نتایج تحلیلی و شبیه سازی ها نشان می دهد که روش gtd در حا...

2014
Bart M. van den Berg B. M. van den Berg

It was the aim of the present study to test whey as protective protein for the sperm cell in the long-term boar semen preservation medium TRIXcell. Analyses of sperm cell motility using computer-assisted semen analysis (CASA) indicated that the whey protein Porex has a similar protective effect as bovine serum albumin (BSA) in maintaining viability of stored boar sperm. Boar sperm diluted in TR...

2017
Morten Sejer Hansen Jørn Wetterslev Christian Bressen Pipper Mohammad Sohail Asghar Jørgen Berg Dahl

INTRODUCTION The area of secondary hyperalgesia following brief thermal sensitization (BTS) of the skin and heat pain detection thresholds (HPDT) may both have predictive abilities in regards to pain sensitivity and clinical pain states. The association between HPDT and secondary hyperalgesia, however, remains unsettled, and the dissimilarities in physiologic properties suggest that they may re...

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