Results 121 to 130 of about 3,274,533 (303)

Coherent versus non-coherent decode-and-forward relaying aided cooperative space-time shift keying

, 2011
Motivated by the recent concept of Space-Time Shift Keying (STSK), we propose a novel cooperative STSK family, which is capable of achieving a flexible rate-diversity tradeoff, in the context of cooperative space-time transmissions. More specifically, we
Sugiura, Shinya, Grant, Peter M., Chen, Sheng, Haas, Harald, Hanzo, Lajos   +4 more
core   +2 more sources

Performance of Coherent Optical MPSK in Underwater Turbulent Channels With Phase Errors

IEEE Photonics Journal
Compared to intensity modulation with direct detection, coherent detection offers superior receiver sensitivity, higher spectral efficiency, and better background noise suppression.
Jiashun Hu, Yuexiang Wu, Sunan Wang, Weiqiang Wu, Zaichen Zhang   +4 more
doaj   +1 more source

Artificial Intelligence in Systemic Sclerosis: Clinical Applications, Challenges, and Future Directions

Arthritis Care &Research, EarlyView.
Systemic sclerosis (SSc) is a rare autoimmune disease defined by immune dysregulation, vasculopathy, and progressive fibrosis of the skin and internal organs. Despite advances in care, major complications such as interstitial lung disease (ILD) and myocardial involvement remain the leading causes of morbidity and mortality.
Cristiana Sieiro Santos, José Miguel Sequí‐Sabater, Diego Benavent   +2 more
wiley   +1 more source

Testing for Mean-Coherent Regular Risk Spanning [PDF]

Coherent risk measures have received considerable attention in the recent literature.Coherent regular risk measures form an important subclass: they are empirically identifiable, and, when combined with mean return, they are consistent with second order ...
Melenberg, B., Polbennikov, S.Y.
core  

Ground-based and air-borne lidar for wake vortex detection and characterisation [PDF]

, 2008
In the last two years several ground based and airborne wake vortex campaigns have been performed with the DLR coherent Doppler Lidar. The objectives of those cam-paigns were measurements for comparison with the wake vortex prediction and monitoring ...
Rahm, S., Smalikho, I., Wiegele, A.
core  

A Return to Normality: A Descriptive Qualitative Interview Study Exploring the Patient Experience of Gout Flare Resolution

Arthritis Care &Research, EarlyView.
Objective Although the definition of a gout flare is well established, the state of gout flare resolution has not yet been defined. This study aimed to explore patients’ experiences and perceptions of gout flare resolution. Methods Semistructured interviews were conducted with 24 people with gout, guided by open‐ended questions exploring their ...
Sarah Stewart, Anne Horne, Angelo Gaffo, Lisa K. Stamp, N. Lawrence Edwards, Nicola Dalbeth   +5 more
wiley   +1 more source

Impact of Laser Linewidth on the Performance of Modulating Retro-Reflector Wireless Coherent Optical Communication Systems in Oceanic Turbulence

IEEE Photonics Journal
The combination of modulating retro-reflector (MRR) architecture and coherent detection constitutes a highsensitivity, lowpower asymmetric link solution for underwater wireless optical communication (UWOC).
Ying Du, Jingyuan Wang, Zhiyong Xu, Jianhua Li, Yang Su, Jiyong Zhao, Yimin Wang   +6 more
doaj   +1 more source

Coherent excitation of ultracold atoms between ground and Rydberg states [PDF]

, 2011
This thesis describes the development of an experiment to study coherent population transfer between ground states, and between ground and Rydberg states, in ultracold atoms.
Abel, Richard Philip, ABEL, RICHARD,PHILIP   +1 more
core  

Mapping the Social Network Structure and Composition of Black Individuals With Rheumatic and Musculoskeletal Conditions

Arthritis Care &Research, EarlyView.
Objective Our objective was to describe the social networks of Black individuals with rheumatic and musculoskeletal conditions and understand the clustering of health‐related behaviors to inform future community‐based, peer‐led interventions. Methods We used an adapted Personal Network Survey for Clinical Research (PERSNET) to map the personal social ...
Taussia Boadi, Amar Dhand, Leah Santacroce, Neil Pillai, Komel Safdar, Mia T. Chandler, Ariel Childs, Monica Crespo‐Bosque, Gina Curry, Mary Dollear, Alice Eggleston, Daniel Erickson, Dieufort Fleurissaint, Denice Garrett, Gail Granville, Tyler Green, Magdalena Hamielec, Elena Losina, Karen Mancera‐Cuevas, Mary Ann Nelson, Chisa Nosamiefan, Bisola Ojikutu, Tonya S. Roberson, Mary Beth Son, Marie Jacques Toussaint, Michael York, Rosalind Ramsey‐Goldman, Candace H. Feldman   +27 more
wiley   +1 more source

Semidefinite programming relaxation based virtually antipodal detection for Gray coded 16-QAM MIMO signalling

, 2011
An efficient semidefinite programming relaxation (SDPR) based virtually antipodal (VA) detection approach is proposed for Gray coded 16-QAM signalling over multiple-input–multiple-output (MIMO) channels.
Yang, Shaoshi, Shaoshi Yang, L. Hanzo, Hanzo, Lajos   +3 more
core   +1 more source