نتایج جستجو برای: شکل دهنده پرتو gsc

تعداد نتایج: 106376  

2010
Seokjin Lee

Our research is to develop the low-complexity broadband microphone beamformer which has robustness to moving interference signal. In this paper, an improved broadband GSC-RLS beamformer structure with fast self-tuning algorithm is proposed. Also, the improved fast self-tuning algorithm for the proposed GSC-RLS structure is developed, based on the Song‟s method. The computational complexity of t...

Journal: :Symposium - International Astronomical Union 1998

2003
Suk Won Kim Dong Sam Ha Jeffrey H. Reed

In this paper, we investigate a new generalized selection combining (GSC) technique and an adaptive rake combining scheme to save the power consumption of mobile rake receivers for wideband CDMA systems. The new GSC technique called minimum selection GSC (MS-GSC) selects a minimum number of rake fingers, while maintaining the combined SNR larger than a given threshold. The proposed adaptive rak...

Journal: :The British journal of ophthalmology 2003
J H Y Tan J R Thompson I Gottlob

BACKGROUND Amblyopia treatment is not standardised and differences between centres and countries have not been systematically investigated. This survey compares the different patterns of orthoptic treatment of amblyopia in the United Kingdom (UK) and three German speaking countries (GSC). METHODS Questionnaires were sent to orthoptists in the UK and the GSC asking for their preferred choices ...

2017
Ye Cheng Weidong He Yongming He

Saponins are natural compounds and possess the most promising anti-cancer function. Here, a saponin gleditsia saponin C (GSC), extracted from gleditsiae fructus abnormalis, could induce apoptosis of lung tumor cell line A549 via caspase dependent cascade and this effect could be prevented by the caspase inhibitors. In addition, GSC induced cell death companied with an increase ratio of Bax:Bcl-...

2013
Willy Joly Aymeric Chartier Patricia Rojas-Rios Isabelle Busseau Martine Simonelig

Translational regulation plays an essential role in Drosophila ovarian germline stem cell (GSC) biology. GSC self-renewal requires two translational repressors, Nanos (Nos) and Pumilio (Pum), which repress the expression of differentiation factors in the stem cells. The molecular mechanisms underlying this translational repression remain unknown. Here, we show that the CCR4 deadenylase is requi...

2017
Sharon Wui Sing Tan Qian Ying Lee Belinda Shu Ee Wong Yu Cai Gyeong Hun Baeg

Oxidative stress influences stem cell behavior by promoting the differentiation, proliferation, or apoptosis of stem cells. Thus, characterizing the effects of reactive oxygen species (ROS) on stem cell behavior provides insights into the significance of redox homeostasis in stem cell-associated diseases and efficient stem cell expansion for cellular therapies. We utilized the Drosophila testis...

پایان نامه :دانشگاه بین المللی امام خمینی (ره) - قزوین - دانشکده برق 1393

شبکههای شکلدهی پرتوی لنز مایکروویو از مکانیسم تأخیر مسیر برای ایجاد جبهه فاز مناسب در ورودی آرایه¬ها استفاده می کند. از آنجایی که مکانیسم طراحی طول مسیر در لنز های مایکروویو مستقل از فرکانس می باشد، بنابراین شبکه شکل دهی پرتو لنز مایکروویو به عنوان دستگاه تأخیر زمانی صحیح عمل می کند. این ویژگی کاربرد لنزهای مایکروویو را در ساختارهای شکل¬دهنده پرتوی پهن باند بسیار متداول نموده است. از دیگر ویژگی...

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