نتایج جستجو برای: duplex

تعداد نتایج: 17959  

2017
Ekant Sharma Rohit Budhiraja K Vasudevan Lajos Hanzo

Full-Duplex Massive MIMO Multi-Pair Two-Way AF Relaying: Energy Efficiency Optimization Ekant Sharma, Rohit Budhiraja, K Vasudevan and Lajos Hanzo, Fellow IEEE Abstract We consider two-way amplify and forward relaying, where multiple full-duplex user pairs exchange information via a shared full-duplex massive multiple-input multiple-output (MIMO) relay. Most of the previous massive MIMO relayin...

Journal: :Advances in Urology 2008
John C. Thomas

Vesicoureteral reflux (VUR) is the most common anomaly associated with duplex systems. In addition to an uncomplicated duplex system, reflux can also be secondary in the presence of an ectopic ureterocele with duplex systems. Controversy exists in regard to the initial and most definitive management of these anomalies when they coexist. This paper will highlight what is currently known about du...

Journal: :Gesnerus 1985

Journal: :JAMA: The Journal of the American Medical Association 1907

Journal: :Nucleic Acids Research 2006
Mahima Kaushik Shrikant Kukreti

Structural polymorphism of DNA is a widely accepted property. A simple addition to this perception has been our recent finding, where a single nucleotide polymorphism (SNP) site present in a quasipalindromic sequence of beta-globin LCR exhibited a hairpin-duplex equilibrium. Our current studies explore that secondary structures adopted by individual complementary strands compete with formation ...

Journal: :American journal of surgery 1996
A Yu D Gregory L Morrison S Morgan

BACKGROUND This study is a cost-benefit analysis of a less invasive method of intra-operative duplex imaging compared with the use of intra-operative angiogram (including C-arm fluoroscopy) in arterial reconstruction. METHODS From September 1994 to May 1995, 93 intra-operative duplex imaging studies were performed. Duplex scanning results were recorded for carotid endarterectomy (35), iliac b...

Journal: :The Journal of Nervous and Mental Disease 1893

H. Eskandari Iman Danaee, M. Ebrahimi S. Nikmanesh

In this study, the effect of molybdate on the electrochemical behavior and semi-conductive properties of duplex stainless steel 2205 passive film at NaCl solutions was investigated. Cyclic potentiodynamic polarization, impedance spectroscopy, mott-schottky plots and scanning electron microscopy (SEM) were used to study the passive behavior. Polarization curves showed that the corrosion current ...

Journal: :The Ulster Medical Journal 1999
P. T. Kennedy W. Loan M. Buckley P. Rice P. Hanley

Duplex ultrasound is used in many radiology departments as the first line of investigation for symptomatic deep venous thrombosis. Before changing the practice of our department from venography to duplex ultrasonography, we wanted to assess our ability to identify deep venous thrombosis on ultrasound. Thirty-eight patients were investigated for suspected deep venous thrombosis by venography and...

2008
Arkadiusz Migdalski Arkadiusz Jawień

The duplex scan is the main tool used to diagnose carotid artery stenosis, and there is agreement that it might be the single preoperative diagnostic test. All limitations of carotid duplex scanning should be taken into consideration during qualification to surgical or endovascular treatment. Awareness of these limitations is especially important when neurological symptoms are typical and duple...

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