نتایج جستجو برای: مدل csi

تعداد نتایج: 124870  

2002
Dmitry Cheresiz Ben H. H. Juurlink Stamatis Vassiliadis Harry A. G. Wijshoff

Current media ISA extensions such as Sun’s VIS consist of SIMD-like instructions that operate on short vector registers. In order to exploit more parallelism in a superscalar processor provided with such instructions, the issue width has to be increased. In the Complex Streamed Instruction (CSI) set exploiting more parallelism does not involve issuing more instructions. In this paper we study h...

2002
A. S. Tremsin O.H.W. Siegmund

It was shown previously that CsI sensitivity can be substantially reduced by intense UV irradiation. In the present study we measure the influence of negative and positive electric fields on the degradation of CsI photocathode sensitivity when it is subject to a large dose UV irradiation. The UV sensitivity of positively biased CsI photocathodes did not decay as fast as in case of negatively bi...

2015
M. S. Salwani B. B. Sahari Aidy Ali

In this study, head injury criteria (HIC) and chest severity index (CSI) assessments are made based on finite element simulation. Simulations are carried out through nonlinear finite element analysis software LS-Dyna. The effect on the occupant’s injury of introducing aluminum alloy, AA5182, to automotive side members is highlighted in comparison to the existing model made of steel. The HIC and...

2005
Christopher Steger Ahmad Khoshnevis Ashutosh Sabharwal Behnaam Aazhang

Coherent communication over fading wireless channels requires channel state information (CSI). Therefore, CSI has value. Communication systems that require CSI must devote some system resources to obtaining it. CSI has associated cost. When the cost can be used to train either the transmitter or the receiver, then the optimal solution is to allocate the training where it will have the highest v...

2007
Clifton C. Addison Brenda W. Campbell-Jenkins Daniel F. Sarpong Jeffery Kibler Madhu Singh Patricia Dubbert Gregory Wilson Thomas Payne Herman Taylor

This study sought to establish the psychometric properties of a Coping Strategies Inventory Short Form (CSISF) by examining coping skills in the Jackson Heart Study cohort. We used exploratory and confirmatory factor analysis, Pearson's correlation, and Cronbach Alpha to examine reliability and validity in the CSI-SF that solicited responses from 5302 African American men and women between the ...

Journal: :Neuro-oncology 2017
Benjamin H Kann Nataniel H Lester-Coll Henry S Park Debra N Yeboa Jacqueline R Kelly Joachim M Baehring Kevin P Becker James B Yu Ranjit S Bindra Kenneth B Roberts

Background Although chemotherapy is used routinely in pediatric medulloblastoma (MB) patients, its benefit for adult MB is unclear. We evaluated the survival impact of adjuvant chemotherapy in adult MB. Methods Using the National Cancer Data Base, we identified patients aged 18 years and older who were diagnosed with MB in 2004-2012 and underwent surgical resection and adjuvant craniospinal i...

2004
Siddharth Ray Muriel Médard Lizhong Zheng Jinane Abounadi

We consider wideband wireless communication over a multiple-input, multiple-output (MIMO) Rayleigh fading channel where the transmitter has no channel state information (CSI). We study the channel with perfect receiver CSI (coherent channel) versus the channel with no CSI at the receiver (non-coherent channel). A channel with partial CSI at the receiver has a capacity between the coherent and n...

Journal: :Journal of clinical anesthesia 2005
Abid U Ghafoor Timothy W Martin Senthil Gopalakrishnan Sanjaya Viswamitra

PURPOSE Anesthesiologists are often involved in the early management and resuscitation of patients who have sustained cervical spine injuries (CSIs). The most crucial step in managing a patient with suspected CSI is the prevention of further insult to the cervical spine (C-spine). In this review, important factors related to initial management, diagnosis, airway and anesthetic management of pat...

Journal: :Journal of Systems Architecture 2002
Dmitry Cheresiz Ben H. H. Juurlink Stamatis Vassiliadis Harry A. G. Wijshoff

The Complex Streamed Instruction (CSI) set is an ISA extension targeted at multimedia applications. CSI instructions process two-dimensional data streams stored in memory, performing sectioning, data alignment and conversion between different packed data types all in hardware. It has been shown previously that CSI provides significant speedups compared to current media ISA extensions such as MM...

2014
Jingon Joung Sumei Sun

In the paper, we propose a channel-state-information (CSI) feedback method, especially, for large-scale MIMO (LMIMO) systems. From the enormous CSI, to extract essential information without redundant information, which arises from the highly correlated antennas, and to make the CSI to be sparse with its essential information, we propose to use a primary component analysis using a Karhunen-Loève...

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