نتایج جستجو برای: capacity

تعداد نتایج: 277762  

Journal: :EURASIP J. Adv. Sig. Proc. 2002
Constantinos B. Papadias Gerard J. Foschini

We take a capacity view of a number of different space-time coding (STC) schemes. While the Shannon capacity of multipleinput multiple-output (MIMO) channels has been known for a number of years now, the attainment of these capacities remains a challenging issue in many cases. The introduction of space-time coding schemes in the last 2–3 years has, however, begun paving the way towards the atta...

2017
Thurston Herricks David J Dilworth Fred D Mast Song Li Jennifer J Smith Alexander V Ratushny John D Aitchison

Cell growth is a complex phenotype widely used in systems biology to gauge the impact of genetic and environmental perturbations. Due to the magnitude of genome-wide studies, resolution is often sacrificed in favor of throughput, creating a demand for scalable, time-resolved, quantitative methods of growth assessment. We present ODELAY (One-cell Doubling Evaluation by Living Arrays of Yeast), a...

2016
Salla Atkins Dinansha Varshney Elnta Meragia Merrick Zwarenstein Vishal Diwan

BACKGROUND Capacity development in health research is high on the agenda of many low- and middle-income countries. OBJECTIVE The ARCADE projects, funded by the EU, have been working in Africa and Asia since 2011 in order to build postgraduate students' health research capacity. In this short communication, we describe one initiative in these projects, that of research clinics - online journal...

Journal: :The New Zealand medical journal 2015
Faafetai Sopoaga Peter Crampton Alec Ekeroma David Perez Kiki Maoate Bradley Watson Jesse Kokaua Katharina Blattner

The role of New Zealand health professional training institutions in capacity building in the Pacific region. otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher.

Journal: :IEEE Trans. Information Theory 1981
Thomas M. Cover Robert J. McEliece Edward C. Posner

The capacity region for the discrete memoryless multipleaccess channel without time synchronization at the transmitters and receivers is shown to be the same as the known capacity region for the ordinary multiple-access channel. The proof utilizes time sharing of two optimal codes for the ordinary multiple-access channel and uses maximum likeliiood decoding over shifts of the hypothesized trans...

2011
Shinya KUMAGAI Ryusuke MATSUKAWA Tatsunori OBARA Fumiyuki ADACHI

あらまし アンテナを空間的に分散させて配置する分散アンテナネットワーク(DAN)は,伝搬損失の影響による 伝送品質の劣化を救済可能な無線ネットワークであり,複数の分散アンテナを用いてダイバーシチを行うことでシ ャドウイング損失および周波数選択性フェージングの影響を低減できるので,さらに伝送品質を改善できる.また, 時空間符号化送受信ダイバーシチ(STBC-JTRD)は符号化率を低下させずに任意の本数の送信アンテナを使用でき, 周波数領域送信等化と併用することで空間ダイバーシチ利得と周波数ダイバーシチ利得の両方を得ることができる. 本論文では,周波数領域(FD-)STBC-JTRD を用いる下りリンクシングルキャリア(SC-)DAN のマルチセル環境下にお けるチャネル容量について検討している.チャネル容量を最大化する送信重みを理論的に導出し,最適送信重みを 用いたときのチャネル容量を...

Journal: :Wireless Communications and Mobile Computing 2015
Chuang Zhang Pingyi Fan Yunquan Dong Ke Xiong

9 To provide stable and high data rate wireless access for passengers in the train, it is necessary to 10 properly deploy base stations along the railway. We consider this issue from the perspective of service, 11 which is defined as the integral of the time-varying instantaneous channel capacity. With large-scale 12 fading assumption, it will be shown that the total service of each base statio...

Journal: :Science 2011
D Layne Coppock Solomon Desta Seyoum Tezera Getachew Gebru

Poverty, drought, and hunger devastate people on Africa's rangelands. We used an action-oriented approach from 2000 to 2004 to build capacity among thousands of pastoralists to diversify livelihoods, improve living standards, and enhance livestock marketing. The process included collective action, microfinance, and participatory education. Poor women previously burdened by domestic chores becam...

Journal: :Operations Research 2008
Xinxin Hu Izak Duenyas Roman Kapuscinski

In this paper, we address the optimal joint control of inventory and transshipment for a firm that produces in two locations and faces capacity uncertainty. Capacity uncertainty (e.g., due to downtime, quality problems, yield, etc.) is a common feature of many production systems but its effects have not been explored in the context of a firm that has multiple production facilities. We first cha...

Journal: :Preventive medicine 2011
Annie Simmons Rebecca C Reynolds Boyd Swinburn

OBJECTIVE Community capacity building has emerged as an important element in effective health promotion practice. The literature highlights many interpretations of community capacity building. Like other broad concepts such as community and social capital, the term 'community capacity building' is not easily captured. The context in which capacity is built is important and possibly contributes ...

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