Results 121 to 130 of about 2,436,826 (370)

Geometric models, antenna gains, and protection ratios as developed for BC SAT-R2 conference software [PDF]

Mathematical models used in the software package developed for use at the 1983 Regional Administrative Radio Conference on broadcasting satellites. The models described are those used in the Spectrum Orbit Utilization Program (SOUP) analysis.
Miller, E. F.
core   +1 more source

Connecting the soil health–water quality nexus under surface‐irrigated conservation tillage

Journal of Environmental Quality, EarlyView.
Abstract Intense tillage degrades soil health, worsens soil structure, and accelerates nutrient and sediment transport to vulnerable water bodies. Unfortunately, few studies have measured both soil health and water quality under conservation tillage, particularly in semi‐arid furrow‐irrigated fields, limiting our understanding of tillage impacts in ...
Tad Trimarco, R. Daren Harmel, Erik Wardle, Cassidy Buchanan, Ansley Brown, Emmanuel Deleon, Troy Bauder, James A. Ippolito   +7 more
wiley   +1 more source

A Combinatorial Bound on the List Size [PDF]

, 2004
In this paper we study the scenario in which a server sends dynamic data over a single broadcast channel to a number of passive clients. We consider the data to consist of discrete packets, where each update is sent in a separate packet.
Bruck, Jehoshua, Cassuto, Yuval
core  

Measurement of nitrous oxide soil fluxes using sorbent‐stabilized sampling of flux chambers

Journal of Environmental Quality, EarlyView.
Abstract A new chamber‐based method to measure nitrous oxide soil gas fluxes using an N2O sorbent is presented. The Greenhouse Gas Reduction through Agricultural Carbon Enhancement network (GRACEnet) protocols require grab samples (typically 25 mL ea.) obtained at multiple intervals throughout chamber deployment (i.e., 0, 15, and 30 min) and linear and
Julio A. Zimbron, Stephen J. Del Grosso, Jorge A. Delgado   +2 more
wiley   +1 more source

Polar coding for the wiretap broadcast channel

, 2023
In the next era of communications, where heterogeneous, asynchronous and ultra-low latency networks are drawn on the horizon, classical cryptography might be inadequate due to the excessive cost of maintaining a public-key infrastructure and the high computational capacity required in the devices.
openaire   +4 more sources

Trellis coding for degraded broadcast channels

Information and Control, 1978
Superposition trellis coding is considered for a two-receiver degraded broadcast channel. A coding theorem is proved that shows the existence of reliable superposition codes at all rates within the capacity region using Viterbi decoding at both receivers.
William J. Leighton, Harry H. Tan
openaire   +3 more sources

The key role of local and global farmer networks in the development of conservation agriculture in California

Journal of Environmental Quality, EarlyView.
Abstract This article chronicles the history of California's Conservation Agriculture Systems Innovation (CASI) Center and how it has increased agricultural sustainability in the San Joaquin Valley, a major production area for the United States, by using agroecological practices to reduce soil erosion and conserve soil moisture, champion systems ...
J. P. Mitchell, L. E. Jackson, D. C. Reicosky, A. Kassam, A. Shrestha, R. Harben, E. M. Miyao, K. M. Scow, G. Sposito, D. Beck, T. Friedrich, A. S. Mitchell, R. Schmidt, S. Park, B. Park, P. Foster, P. Muller, A. Brait, T. Willey, M. Bottens, C. Crum, D. Giacomazzi, T. Barcellos, M. V. Crowell, R. Roy, H. Ferris, J. L. Chiartas, E. Brennan, A. Gaudin, John Diener, Justin Diener, L. Asgill, E. A. Kueneman, J. Fisher, M. Bartz, R. A. Peiretti, R. Derpsch, J. Landers, B. J. Aegerter, M. Leinfelder‐Miles, S. E. Light, J. McPhee, R. B. Ferraz Branco   +42 more
wiley   +1 more source

Study on the matching scheme between early warning information dissemination demands and communication network dissemination channels

Dianxin kexue, 2022
Early warning information dissemination capacity is insufficient in timeliness, accuracy and wide coverage compared with the national emergency management system requirements.The dissemination demands were analyzed from early warning information ...
Jingli WANG, Yu ZHAO
doaj   +2 more sources

FOREIGN DISCOURSE AS A TOOL OF STATE STRATEGIC COMMUNICATION: CONCEPTUAL FOUNDATION

Інтегровані комунікації
An in-depth analysis of international broadcasting as one of the primary instruments of state strategic communications in the context of global digitalization and information warfare is conducted in the article.
Maryna Skazhennyk
doaj   +1 more source

Development, Efficiency, and Impact Factors of Phosphorus Nanofertilizers in Agriculture: A Review

Journal of Plant Nutrition and Soil Science, EarlyView.
Overview of the potential benefits of phosphorus nanofertilizers in agriculture. ABSTRACT Modern intensive agriculture to feed the growing population of the world has been practiced in view of the limitations of arable land and water resources. However, overapplication of chemical fertilizers may pose severe environmental impacts, including soil ...
Houssameddine Mansouri, Hamid Ait Said, Hassan Noukrati, Abdallah Oukarroum, Hicham Ben Youcef, Treavor Boyer, François Perreault   +6 more
wiley   +1 more source