نتایج جستجو برای: مدل csi

تعداد نتایج: 124870  

Journal: :Magnetic resonance in medicine 2008
Dirk Mayer Dong-Hyun Kim Daniel M Spielman Roland Bammer

Spiral chemical shift imaging (CSI) is a fast CSI technique that simultaneously encodes 1D spectral and 2D spatial information. Therefore, it potentially allows one to perform a 2D-CSI experiment in a single shot. However, for most applications, limitations on maximum gradient strength and slew rate make multiple excitations necessary in order to achieve a desired spectral bandwidth. In this wo...

2006
Baptiste Vrigneau Philippe Rostaing Gilles Burel

In order to compare the performances of three transmission schemes of keyinterest able to reach the maximum diversity order, guarantee of robust transmission, we used a dual-polarization channel model to take into account polarization diversity and transmit/receive correlation. These schemes under study were i)two systems using full channel state information (CSI) at the transmitter side (Tx-CS...

Journal: :The Biochemical journal 1995
C G Mitchell S C Anderson E M el-Mansi

Two types of citrate synthase (CS) have been purified from Pseudomonas aeruginosa, a 'large' form (CSI) and a 'small' form (CSII). The M(r)s of the CSI and CSII isoenzymes were determined to be 240,000 +/- 16,000 (mean +/- S.E.M.) and 80,300 +/- 3800 respectively. Chemical cross-linking of the native enzymes with either dimethyl suberimidate or glutaraldehyde followed by electrophoretic analysi...

2018
Ta-Wei Lai Hsiao-Li Ma Meng-Shiunn Lee Po-Ming Chen Ming-Chou Ku

OBJECTIVES Extracorporeal shockwave therapy (ESWT) and corticosteroid injection (CSI) are treatment options for plantar fasciitis. Their clinical outcome comparison remains a debate. Also, the thickness changes of the plantar fascia on objective evaluation under the medium energy ESWT and CSI therapy are elusive. METHODS A total of 97 patients with chronic plantar fasciitis were enrolled in t...

2003
Kewu Peng John C. Kieffer Qingwen Liu Shengli Zhou

In this paper, we consider the problem of embedded image transmission with feedback of channel state information (CSI) and retransmission request. Adaptive modulation is employed to improve the spectral efficiency. Constrained retransmission is employed to provide reliable packet transmission with limited delay. Performance analysis and numerical results over Nakagami blockfading channels are p...

Journal: :trauma monthly 0
mehrdad mahdian trauma research center, kashan university of medical sciences, kashan, ir iran mohammad reza fazel trauma research center, kashan university of medical sciences, kashan, ir iran esmaeil fakharian trauma research center, kashan university of medical sciences, kashan, ir iran hossein akbari trauma research center, kashan university of medical sciences, kashan, ir iran

background cerebral state index (csi) is derived from electroencephalogram (eeg) and is used for monitoring the level of consciousness during anesthesia. this study was designed to investigate the accuracy of glasgow coma scale (gcs) and csi as a predictor of in-hospital mortality in patients with trauma brain injury (tbi). objective to compare the predictive value of gcs and csi for predicting...

Journal: :IEEE Access 2023

Recent studies corroborate Wi-Fi Channel State Information (CSI) usability to monitor patients remotely and obtain health information non-invasively with low-cost. In addition monitoring vital signs, this technology can also be applied presence detection, subject recognition, position movement identification, among other uses. Despite its wide range of potential applications, there is a lack CS...

2011
Ferkan Yilmaz Mohamed-Slim Alouini

Channel side information (CSI) information varies very fast in the millimeter wave radio frequencies so its coherent time is much smaller than that of the CSI in low-frequencies (about 6 GHz or below) under the same mobility conditions. Further, when the feedback channels, regardless of being wireless or wireline, have a backhaul / transmission delay which is practically so much higher than the...

Journal: :AJNR. American journal of neuroradiology 1999
Y Y Hsu C Chang C N Chang N S Chu K E Lim J C Hsu

BACKGROUND AND PURPOSE Proton MR spectroscopy has recently been applied to the evaluation of seizures, but few comparisons have been made between different clinical spectroscopic techniques. Our goal was to determine whether there is a significant difference between hippocampal NAA/(Cho+Cr) ratios obtained by single-voxel spectroscopy (SVS) and by chemical-shift imaging (CSI). METHODS Twelve ...

2013
Tinakon Wongpakaran Nahathai Wongpakaran

PURPOSE The aim of this study was to establish the level of correlation between the suicide item contained within the Core Symptom Index (CSI), and the presence of suicidal thoughts as assessed by the Mini-International Neuropsychiatric Interview (MINI) and the Cornell Scale of Depression in Dementia (CSDD). PATIENTS AND METHODS Seventy elderly residents in a long term care facility were incl...

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