Results 51 to 60 of about 101,692 (281)

A low profile radiating element with nearly hemispheric coverage for satellite communications on-the-move hybrid array antenna [PDF]

, 2010
A novel design solution of a dual-linearly polarised Ku-band low-profile radiating element for low elevation angle coverage (down to 10° above horizon) is presented. Such an element is suitable for full-duplex Satellite Communications On-The-Move (SCOTM)
Foti, Steve, Jiang, Yuanyuan, Sambell, Alistair, Smith, Dave   +3 more
core   +1 more source

Three-Mode Opportunistic Full-Duplex Switching

IEEE Access
This paper proposes a novel opportunistic full-duplex (FD) scheme switching among three duplex modes (DMs) of half duplex (HD), three node FD (TNFD) and bidirectional FD (BiFD) for the cellular systems.
Hyungseop Son, Kwonhue Choi
doaj   +1 more source

Throughput analysis of full-duplex communication cognitive radio network [PDF]

, 2017
In this paper we deal with the throughput of full-duplex cognitive communication radio which exploits unused band of primary user (PU) network. Classical cognitive radio uses half-duplex communication spectrum sensing to perform spectrum sensing and data
A Taherpour, C Ni, DR Fuhrmann, FF Digham, H Sun, M Derakhshani, Mir Muhammad Lodro, Mukhtiar A. Unar, Naeem A. Mahoto, S Atapattu, S Chatterjee, S Chaudhari, Steeve Greedy, W Cheng, W Zhang, Y Chen, Y Zeng, Y-C Liang   +17 more
core   +2 more sources

Genetic attenuation of ALDH1A1 increases metastatic potential and aggressiveness in colorectal cancer

Molecular Oncology, EarlyView.
Aldehyde dehydrogenase 1A1 (ALDH1A1) is a cancer stem cell marker in several malignancies. We established a novel epithelial cell line from rectal adenocarcinoma with unique overexpression of this enzyme. Genetic attenuation of ALDH1A1 led to increased invasive capacity and metastatic potential, the inhibition of proliferation activity, and ultimately ...
Martina Poturnajova, Zuzana Kozovska, Ondrej Pos, Kristina Pavlov, Sachin Gulati, Peter Makovicky, Kristina Jakic, Monika Burikova, Eva Sedlackova, Barbora Svitkova, Silvia Tyciakova, Vojtech Bystry, Nicolas Blavet, Boris Tichy, Matej Hrnciar, Jaroslav Budis, Miroslav Tomas, Peter Dubovan, Georgina Kolnikova, Veronika Repaska, Nikoleta Mojzesova, Eva Zomborska, Daniel Pindak, Michal Mego, Tomas Szemes, Miroslava Matuskova   +25 more
wiley   +1 more source

On Constant Gaps for the Two-way Gaussian Interference Channel [PDF]

, 2012
We introduce the two-way Gaussian interference channel in which there are four nodes with four independent messages: two-messages to be transmitted over a Gaussian interference channel in the $\rightarrow$ direction, simultaneously with two-messages to ...
Cheng, Zhiyu, Devroye, Natasha
core   +1 more source

Neurovascular Contacts in the Pathophysiology of Neuralgic Amyotrophy: An Observational Study

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Neuralgic amyotrophy (NA) is a prevalent, monophasic, multifocal immune‐mediated neuropathy. A distinctive characteristic of the disease is the occurrence of nerve or fascicle constrictions and torsions (NA‐associated focal nerve lesions, NAFL). The pathophysiology underlying this phenomenon remains to be fully elucidated.
Johannes Fabian Holle, Andreas Leha, Volker Limmroth, Wolfram Windisch, Maximilian Zimmermann   +4 more
wiley   +1 more source

In-Band Full-Duplex Relay-Assisted Millimeter-Wave System Design

IEEE Access, 2019
Millimeter-wave (mmWave) communication is a promising technology for future wireless systems due to the availability of huge unlicensed bandwidth. However, the need for large number of radio frequency (RF) chains associated with the antenna array and the
Deepa Jagyasi, P. Ubaidulla
doaj   +1 more source

Distributed Full-duplex via Wireless Side Channels: Bounds and Protocols [PDF]

, 2014
In this paper, we study a three-node full-duplex network, where a base station is engaged in simultaneous up- and downlink communication in the same frequency band with two half-duplex mobile nodes.
Bai, Jingwen, Sabharwal, Ashutosh
core  

Limits on the Capacity of In-Band Full Duplex Communication in Uplink Cellular Networks

, 2015
Simultaneous co-channel transmission and reception, denoted as in-band full duplex (FD) communication, has been promoted as an attractive solution to improve the spectral efficiency of cellular networks.
Alouini, Mohamed-Slim, Elsawy, Hesham, Randrianantenaina, Itsikiantsoa   +2 more
core   +1 more source

Influence of an Oxygen‐Free Atmosphere on Diamond‐Single‐Grain Scratching of Ti–6Al–4V

Advanced Engineering Materials, EarlyView.
Single‐grain scratching of Ti–6Al–4V is investigated under controlled, oxygen‐free, and ambient atmospheres using a novel experimental setup with in situ high‐speed imaging. The approach enables direct observation of chip formation and adhesion under suppressed oxidation.
Berend Denkena, Benjamin Bergmann, Michael Zenger   +2 more
wiley   +1 more source