Results 81 to 90 of about 2,464 (177)

Low Probability of Intercept-Based Optimal OFDM Waveform Design Strategy for an Integrated Radar and Communications System

IEEE Access, 2018
The integration of radar and communications systems can provide great advantages, such as enhanced efficiency, structure simplification, less occupied hardware resources, and interference mitigation, compared with traditional individual radar and ...
Chenguang Shi, Fei Wang, Sana Salous, Jianjiang Zhou   +3 more
doaj   +1 more source

Assessment of digital platforms for the quantification of co‐benefits in nature‐based solutions

Sustainable Development, Volume 33, Issue 2, Page 2137-2153, April 2025.
Abstract The significance of Nature‐Based Solutions (NBSs) in addressing environmental and socioeconomic challenges is widely acknowledged, yet research on NBSs continues due to a limited understanding of their full benefits. This study addresses the existing gap by focusing on NBS co‐benefit valuation through digital platforms. These platforms support
Mahdieh Raji, Beulah Evelyn Lazarus, Naga Venkata Sudha Rani Nalakurthi, Ananya Tiwari, Salem Gharbia   +4 more
wiley   +1 more source

Pre‐Fire Vegetation Conditions and Topography Shape Burn Mosaics of Siberian Tundra Fire Scars

Journal of Geophysical Research: Biogeosciences, Volume 130, Issue 3, March 2025.
Abstract The fire season of 2020 in Siberia set a precedent for extreme wildfires in the Arctic tundra. Recent estimates indicated that the 2020 fires contributed 66% of the region's burned area over the last two decades. These fires burned in the carbon‐rich permafrost landscape, releasing vast amounts of carbon, and changing land surface processes by
N. Rietze, R. J. Heim, E. Troeva, G. Schaepman‐Strub, J. J. Assmann   +4 more
wiley   +1 more source

Spread spectrum modulation and signal masking using synchronized chaotic systems [PDF]

, 1992
Includes bibliographical references (leaves 36-37).Research supported in part by the Air Force Office of Scientific Research. AFOSR-91-0034-A Research supported in part by Lockheed Sanders, Inc., under the U.S. Navy Office of Naval Research.

core  

RLC³-LPI: A Reinforcement Learning-Based Multi-UAV Cooperative Communication Coverage Algorithm With Low Interception Probability

IEEE Open Journal of Vehicular Technology
In low-altitude applications, Unmanned Aerial Vehicles (UAVs) have gained widespread adoption, expanding their roles across diverse domains such as search and rescue, communication coverage, and security surveillance.
Shihong Zhao, Furong Yang, Qihui Wu, Fangwei Ye, Lijuan Zhang   +4 more
doaj   +1 more source

Sample Selection Models in R: Package sampleSelection [PDF]

This paper describes the implementation of Heckman-type sample selection models in R. We discuss the sample selection problem as well as the Heckman solution to it, and argue that although modern econometrics has non- and semiparametric estimation ...
Arne Henningsen, Ott Toomet
core   +1 more source

NON-CREDIBLE INFORMATION FLOWS BETWEEN FOOD MANUFACTURERS AND RETAILERS [PDF]

Asymmetric information between food manufacturers and retailers constrains the efforts of analysts studying the retail food chain. The problem may be especially pronounced during new product introductions.
DeVuyst, Cheryl Sinn
core   +1 more source

Tilannekuvan muodostaminen seuraavan sukupolven hävittäjässä [PDF]

, 2011
Tutkielmassa on tarkasteltu tilannekuvan muodostamista 5. sukupolven hävittäjässä. Tarkastelu on tehty kirjallisuusselvityksenä, jota on tuettu analysoimalla ja laskemalla suorituskykyarvoja muutamissa esimerkkitilanteissa.
Passoja, Kalle
core  

Efficient Mortgage Default Option Exercise: Evidence from Loss Severity [PDF]

This paper extends options-based mortgage default theory to include transaction costs. When transaction costs are considered, the rational borrower will default only when the value of the collateral falls below the mortage value by an amount equal to the
Eric Rosenblatt, Gordon W. Crawford
core  

Determination of Ceres mass based on the most gravitationally efficient close encounters

, 2011
Here is presented recalculated value of the mass of Ceres, based on explicit tracking of its gravitational influence on orbits evolution of 21 selected asteroids during their mutual close encounters (CE).
Andjelka B. Kovačević, Baer, Bowell, Britt, Christou, Cox, Goffin, Goffin, Hilton, Hilton, Hilton, Hilton, Hoffmann, Ivezić, Kochetova, Kolmogorov, Konopliv, Kovačević, Kovačević, Kuzmanoski, Kuzmanoski, Michalak, Opik, Piotrwski, Pitjeva, Pitjeva, Press, Sitarski, Sitarski, Smirnov, Tedesco, Viateau, Viateau, Viateau, Williams   +34 more
core   +1 more source