نتایج جستجو برای: duplex ultra

تعداد نتایج: 75972  

Journal: :iranian journal of radiology 0
mona kharraji shahid sadiughii university of medical sciences, yazd, iran reza nafisi moghadam shahid sadiughii university of medical sciences, yazd, iran kazem razavi shahid sadiughii university of medical sciences, yazd, iran mohammad sobhanardekani shahid sadiughii university of medical sciences, yazd, iran mohammadhosein ahraryazdi shahid sadiughii university of medical sciences, yazd, iran

conclusions la increases the risk of cva and dementia. the la pathology is unknown. the epidemiological studies revealed the age, diabetes, smoking and atherosclerosis are related with la. our findings showed that cimt as an atherosclerosis marker was higher in la patients than control group. results totally 200 patients were studied, 102 in normal group and 98 in ila group. the mean age of pat...

Journal: :international journal of iron & steel society of iran 2005
hong-sheng fang qi li zhi-gang yang bing-zhe bai dong-yu liu

the unique properties of air-cooled bainitic steels have been described. a series of mn containing air-cooled bainitic steels invented by authors is presented in this paper: including low carbon granular bainitic steels, low carbon grain-boundary allotriomorphic ferrite/granular bainite duplex steels, medium and medium high carbon bainite/martensite duplex steel, and low carbon carbide free bai...

Bing-Zhe Bai Dong-Yu Liu Fu-Bao Yang Hong-Sheng Fang, Qi Li Zhi-Gang Yang

The unique properties of air-cooled bainitic steels have been described. A series of Mn containing air-cooled bainitic steels invented by authors is presented in this paper: including low carbon granular bainitic steels, low carbon grain-boundary allotriomorphic ferrite/granular bainite duplex steels, medium and medium high carbon bainite/martensite duplex steel, and low carbon carbide free bai...

Journal: :CoRR 2017
Yifan Gu He Chen Yonghui Li Branka Vucetic

This letter analyzes and compares the performance of full-duplex relaying (FDR) and half-duplex relaying (HDR) for ultra-reliable short-packet communications. Specifically, we derive both approximate and asymptotic closed-form expressions of the block error rate (BLER) for FDR and HDR using short packets with finite blocklength codes. We define and attain a closed-form expression of a critical ...

Journal: :Optics express 2016
Jose A Altabas David Izquierdo Jose A Lazaro Adolfo Lerin Felix Sotelo Ignacio Garces

1 Gbps full-duplex optical links for 6.25 GHz ultra dense WDM frequency slots are demonstrated and optimized for cost-effective metro-access networks. The OLT-ONU downlinks are based on 1 Gbps Nyquist-DPSK using MZM and single-detector heterodyne reception obtaining a sensitivity of -52 dBm. The ONU-OLT uplinks are based on 1 Gbps NRZ-DPSK by directly phase modulated DFB and also single-detecto...

2016
Meng Liu Qiang Zhang Zhongping Li Jimmy Gu John D. Brennan Yingfu Li

Many rationally engineered DNA nanostructures use mechanically interlocked topologies to connect individual DNA components, and their physical connectivity is achieved through the formation of a strong linking duplex. The existence of such a structural element also poses a significant topological constraint on functions of component rings. Herein, we hypothesize and confirm that DNA catenanes w...

Journal: :IEICE Transactions 2011
Wensheng Zhang Yukitoshi Sanada

This paper discusses a dual-stage detection scheme composed of coarse detection stage and refined detection stage for the continuous detection operation of Ultra-Wideband (UWB) detect and avoid (DAA). The threshold factor for the probability of indefinite detection is first proposed and defined to combine the two stages. The proposed scheme focuses on the integration of two different detection ...

Journal: :Iet Microwaves Antennas & Propagation 2021

In this study, we present an ultra-wideband full-duplex system constituted of a wideband 4-element Vivaldi array and microstrip-to-slotline baluns. The proposed is characterised by its simplicity, high directivity, self-interference cancellation levels over wide frequency bandwidth. fabricated using basic printed-circuit board (PCB) technology can provide at least 50 dB the bandwidth operation,...

Journal: :CoRR 2017
Alireza Sadeghi Michele Luvisotto Farshad Lahouti Michele Zorzi

Statistical QoS provisioning as an important performance metric in analyzing next generation mobile cellular network, aka 5G, is investigated. In this context, by quantifying the performance in terms of the effective capacity, we introduce a lower bound for the system performance that facilitates an efficient analysis. Based on the proposed lower bound, which is mainly built on a per resource b...

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