Results 21 to 30 of about 10,120,233 (322)
Indicators and components affecting the military field of maritime security the Islamic Republic of Iran in the Caspian Sea [PDF]
علوم و فنون نظامیObjective: To explain the indicators and components affecting the military dimension of the maritime security of the IRIran in the Caspian Sea and its sub-goals, to explain the challenges of the maritime security of the IRIran in the Caspian Sea and to ...
Gholamreza Tahani +2 more
doaj +1 more source
Intelligent Reflecting Surface: A Programmable Wireless Environment for Physical Layer Security [PDF]
IEEE Access, 2019 In this paper, we introduce an intelligent reflecting surface (IRS) to provide a programmable wireless environment for physical layer security. By adjusting the reflecting coefficients, the IRS can change the attenuation and scattering of the incident ...
Jie Chen +3 more
semanticscholar +1 more source
A better use of fertilizers is needed for global food security and environmental sustainability
Agriculture & Food Security, 2023 The massive use of fertilizers during the last decades allowed a great increase in the global capacity of food production. However, in the last years, several studies highlight the inefficiency and country asymmetries in the use of these fertilizers that
J. Peñuelas +2 more
semanticscholar +1 more source
Selected Trends and Phenomena in the Security Environment [PDF]
Košická bezpečnostná revue, 2020 The aim of this scientific study is to define the security environment, to predict its impact on the functioning of the security system of the Czech Republic, the Visegrad Group countries and the Army of the Czech Republic.
Petr ROŽŇÁK
doaj
Security and Privacy for 6G: A Survey on Prospective Technologies and Challenges [PDF]
IEEE Communications Surveys and Tutorials, 2021 Sixth-generation (6G) mobile networks will have to cope with diverse threats on a space-air-ground integrated network environment, novel technologies, and an accessible user information explosion.
V. Nguyen +4 more
semanticscholar +1 more source
The future of energy security of states
Security and Defence Quarterly, 2020 The work focuses on the controversy about technological progress and unlimited access to all kinds of energy acquisition, storage and distribution. It suggests a formula for energy acquisition and usage which embraces issues of peace and war, social ...
Jarosław Jerzy Gryz
doaj +1 more source
THE AUKUS ALLIANCE. STRATEGIC OBJECTIVES AND THEIR CONSEQUENCES [PDF]
Annals: Series on Military Sciences, 2023 Major state actors are in a constant race for supremacy in different environments, which offers new perspectives on international relations and also changes the old world order by reversing roles in the global ranking of political and military ...
Lieutenant Ionuț-Iulian CĂLUGĂRU
doaj
Dependable reconfigurable multi-sensor poles for security [PDF]
, 2009 Wireless sensor network poles for security monitoring under harsh environments require a very high dependability as they are safety-critical [1]. An example of a multi-sensor pole is shown.
Kerkhoff, Hans G.
core +3 more sources
Challenges of the Republic of serbia's military neutrality in a changed security environment [PDF]
Politika nacionalne bezbednostiThe deepening geopolitical conflict between the West and the Russian Federation, intensified by the war in Ukraine, has caused significant changes in the security environment of the Republic of Serbia and has largely complicated the realization of its ...
Beriša Hatidža, Barišić Igor
doaj +1 more source
Journal of Forensic Sciences, 2018 Testing for phosphatidylethanol (PEth) is a relatively new tool for detecting and grossly quantifying a person's use of alcohol in a variety of security, medical, and legal environments. The basic chemistry of PEth is explained with a particular focus on
W. Ulwelling, Kim Smith
semanticscholar +1 more source