Results 71 to 80 of about 82,734 (197)

Overview of meteorological inputs to NASP [PDF]

, 1985
An overview of meteorological systems for forecasting flight conditions is presented. The types of equipment used to gather the information used to prepare pilot briefings and in flight advisories is described.
Dziuk, J. C.
core   +1 more source

Estimating Rain‐Specific Attenuation at Extremely High Frequencies From Disdrometer Measurements at Various Climate Zones in the US

International Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT The raindrop size distribution (DSD) plays an essential role in understanding rain attenuation effects at extremely high frequencies (EHFs). Over 1 year of DSD measurements was taken at different Köppen–Geiger climate classifications within the United States. Optical disdrometers from Thies Clima were used to measure both the size and velocity
Eugene S. Hong, George Brost, Nicholas Tarasenko, Steven A. Lane   +3 more
wiley   +1 more source

Broadband wireless communication with space-time-varying polarization-converting metasurface

Nanophotonics, 2023
Reconfigurable metasurfaces have emerged as a promising alternative to the conventional transmitter of wireless communication systems, due to their abilities of encoding digital information onto electromagnetic properties without complex radio-frequency ...
Hu Qi, Chen Ke, Zheng Yilin, Xu Zhiyuan, Zhao Jianmin, Wang Jian, Feng Yijun   +6 more
doaj   +1 more source

Adaptive Interference Removal for Un-coordinated Radar/Communication Co-existence

, 2017
Most existing approaches to co-existing communication/radar systems assume that the radar and communication systems are coordinated, i.e., they share information, such as relative position, transmitted waveforms and channel state.
Lops, Marco, Wang, Xiaodong, Zheng, Le
core   +1 more source

Beyond Manoeuvre Theory for European Defence

Global Policy, EarlyView.
ABSTRACT This article contributes to the debate about European defence in the light of the Russo‐Ukraine war and growing doubts about US commitment to Europe. It argues that Europeans need to fundamentally relearn the ability to imagine military strategy from a European viewpoint.
Lukas Mengelkamp, Sam Vincent
wiley   +1 more source

Business Groups after Incidents of Wrongdoing: Exploring the Effectiveness of Differentiated Versus Aligned Impression Management Tactics

Journal of Management Studies, EarlyView.
Abstract We use attribution theory to understand how people evaluate a company when another company in the same business network does something wrong. In studying business groups, we find that when one company affiliated with a group commits wrongdoing, the strategies used by other affiliated companies to manage how they are evaluated are only ...
Josh Wei‐Jun Hsueh, Melanie Richards
wiley   +1 more source

Dual‐user joint sensing and communications with time‐divisioned bi‐static radar

IET Communications
Joint sensing and communications systems have gained significant research interest by merging sensing capabilities with communication functionalities. However, few works have examined the case of multiple users.
Enhao Wang, Yunfei Chen, Aissa Ikhlef, Hongjian Sun   +3 more
doaj   +1 more source

War as a Phenomenon of Inquiry in Management Studies

Journal of Management Studies, EarlyView.
Abstract We argue that war as a phenomenon deserves more focused attention in management. First, we highlight why war is an important and relevant area of inquiry for management scholars. We then integrate scattered conversations on war in management studies into a framework structured around three building blocks – (a) the nature of war from an ...
Fabrice Lumineau, Arne Keller
wiley   +1 more source

A Code-Orthogonal PMCW Transmission Scheme for Improving Communications Performance in JCAS Systems

IEEE Access
Joint communications and sensing (JCAS) is regarded as a major technology building block in 6G networks. The combination of communications and radar sensing systems benefits from saved hardware costs, reduced energy consumption, and less spectrum ...
Yanpeng Su, Victor Shatov, Norman Franchi, Maximilian Lubke   +3 more
doaj   +1 more source

Politicized Framing of the Future: Encouraging Innovation in Mature Ecosystems in the Face of Asymmetric De Alio Entrants

Journal of Management Studies, EarlyView.
Abstract Hubs and participants of mature ecosystems increasingly compete with de alio entrants that are hubs of more innovative ecosystems. Prior research shows how these asymmetric de alio entrants frame to win over participants from mature ecosystems and suggests that hubs of these ecosystems should respond by encouraging innovation among ...
Georg Reischauer, Alexander Engelmann, Werner H. Hoffmann   +2 more
wiley   +1 more source