Results 91 to 100 of about 2,448 (172)

Modeling the Impact of Landscape Dynamics on Soil Erosion in Eastern DR Congo: Implications for Sustainable Land Management

Applied and Environmental Soil Science, Volume 2025, Issue 1, 2025.
Human activity and related land‐use/land cover (LULC) changes are the primary causes of accelerated soil erosion during the 21st century. However, there is limited information about the spatiotemporal dynamic of soil erosion under different conditions of LULC changes in mountainous regions of eastern DR Congo.
Jean Nacishali Nteranya, Andrew Kiplagat, Elias K. Ucakuwun, Chantal Kabonyi Nzabandora, Karan Singh   +4 more
wiley   +1 more source

Deciphering the genetic basis of novel traits that discriminate useful and non‐useful biomass to enhance harvest index in wheat

The Plant Genome, Volume 17, Issue 4, December 2024.
Abstract Wheat (Triticum aestivum L.) production must be doubled in the next 25 years to meet the global food demand. Harvest index (HI) is an important indicator of efficient partitioning of photosynthetic assimilates to grains. Reducing competition from alternative sinks, such as stems, and deviating assimilates toward grain increase grain number (GN)
Dipendra Shahi, Jia Guo, Md Ali Babar, Sumit Pradhan, Muhsin Avci, Naeem Khan, Jordan McBreen, Smita Rayamajhi, Zhao Liu, Guihua Bai, Paul St. Amand, Amy Bernardo, Matthew Reynolds, Gemma Molero, Sivakumar Sukumaran, John Foulkes, Jahangir Khan   +16 more
wiley   +1 more source

A Real Orthogonal Space-Time Coded UWB Scheme for Wireless Secure Communications

EURASIP Journal on Wireless Communications and Networking, 2009
Recent research reveals that information security and information-hiding capabilities can be enhanced by proper exploitation of space-time techniques. Meanwhile, intrinsic properties of ultra-wideband (UWB) signals make it an outstanding candidate for ...
Zhang Yanbing, Dai Huaiyu
doaj   +2 more sources

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  

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

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  

Entanglement Assisted LPI and Covert Communications With SLM-Based Beam Steering Over Turbulent Optical Channels

IEEE Access
In secure communications, the primary focus is on safeguarding the content of the message. In contrast, low probability of intercept (LPI) communications prioritize the privacy of the communication process itself.
Ivan B. Djordjevic, Ignacio A. Rojas
doaj   +1 more source

Spin correlations in $\vec{p}\vec{p}\to pn\pi^{+}$ pion production near threshold

, 2001
A first measurement of longitudinal as well as transverse spin correlation coefficients for the reaction $\vec{p}\vec{p}\to pn\pi^+$ was made using a polarized proton target and a polarized proton beam.
A. Del Guerra, A. H. Rosenfeld, A. Wellinghausen, B. Blankleider, B. Lorentz, B. Morton, B. Schwartz, B. v. Przewoski, B. v. Przewoski, B. von Przewoski, C. A. da Rocha, C. Hanhart, C. Hanhart, C. Hanhart, C. Hanhart, C. Hanhart, D. Koltun, F. Rathmann, H. O. Meyer, H. O. Meyer, H. O. Meyer, H. O. Meyer, H. O. Meyer, J. G. Hardie, J. S. Price, J. T. Balewski, M. A. Ross, M. E. Schillaci, M. Gell-Mann, P. Thörngren-Engblom, P. V. Pancella, R. E. Pollock, R. G. Pleydon, R. W. Flammang, R. W. Flammang, Swapan K. Saha, Swapan K. Saha, T. Rinckel, T. Rinckel, T. Wise, T. Wise, T.-S. H. Lee, W. W. Daehnick, W. W. Daehnick, W. W. Daehnick, W. W. Daehnick   +45 more
core   +1 more source

Information-theoretic Physical Layer Security for Satellite Channels

, 2017
Shannon introduced the classic model of a cryptosystem in 1949, where Eve has access to an identical copy of the cyphertext that Alice sends to Bob. Shannon defined perfect secrecy to be the case when the mutual information between the plaintext and the ...
Hayashi, Masahito, Vazquez-Castro, Angeles   +1 more
core   +1 more source

Joint Design of LPI Transmit Waveform and Receive Beamforming Based on Neural Networks for FDA-MIMO

Leida xuebao
Traditional Low Probability of Intercept (LPI) array radars that use phased array or Multiple-Input Multiple-Output (MIMO) systems face limitations in terms of controlling radiation energy only at specific angles and cannot achieve energy control over ...
Deshun LIU, Deping XIA, Lu CHEN, Yanfeng MA   +3 more
doaj   +1 more source