Results 31 to 40 of about 1,293,379 (340)
THE SYRIAN QUESTION IN THE CONTEXT OF GEOPOLITICAL CONTRADICTIONS OF RUSSIA AND USA
The Syrian crisis is most difficult today an interlacing of geopolitical contradictions where the multi-vector interests of global players - the USA and Russia and regional find the collision: Saudi Arabia, Turkey, Iran.
Arushan Arushanovich Vartumyan +1 more
doaj
Two-stage Channel Frequency Response Estimation in OFDM Systems [PDF]
This paper proposes two-stage channel frequency response estimation algorithm in communication systems with OFDM technology. Algorithm is based on Kalman filter. Pilots from current and previous OFDM symbols are used for channel estimation.
Myronchuk, Oleksandr +2 more
core +2 more sources
Impact assessment of rural PPP MaaS pilots
The purpose of this paper is to present the impact assessment results of Mobility as a Service pilots based on public-private collaboration. In the pilots, companies and local and regional stakeholders joined their expertise to experiment with different ...
Jenni Eckhardt +2 more
semanticscholar +1 more source
Morphological Characteristics and Lung Function of the Pilots of Montenegro Army
The results of numerous medical studies and kinesiology research show the existence of differences in the lung function with reference to age, body height and the ratio of certain parameters of body composition.
Boris Banjevic, Boris Zarkovic
doaj +1 more source
Tracing Pilots’ Situation Assessment by Neuroadaptive Cognitive Modeling
This study presents the integration of a passive brain-computer interface (pBCI) and cognitive modeling as a method to trace pilots’ perception and processing of auditory alerts and messages during operations. Missing alerts on the flight deck can result
Oliver W. Klaproth +5 more
semanticscholar +1 more source
COVID-19 Pandemic and Pilot Mental Health Care
When the COVID-19 crisis hit air transport, the whole aviation industry was affected. The change in the behavior of passengers following the COVID-19 crisis, travel restrictions and the ensuing economic crisis have resulted in a dramatic drop in ...
Young Hwan Kwon
doaj +1 more source
Spectral and Energy Efficiency of Superimposed Pilots in Uplink Massive MIMO [PDF]
Next-generation wireless networks aim at providing substantial improvements in spectral efficiency (SE) and energy efficiency (EE). Massive MIMO has been proved to be a viable technology to achieve these goals by spatially multiplexing several users ...
Daniel Verenzuela +2 more
semanticscholar +1 more source
Theory of aces: high score by skill or luck? [PDF]
We studied the distribution of World War I fighter pilots by the number of victories they were credited with, along with casualty reports. Using the maximum entropy method we obtained the underlying distribution of pilots by their skill. We find that the
Roychowdhury, V. P., Simkin, M. V.
core +1 more source
Superimposed Pilots Are Superior for Mitigating Pilot Contamination in Massive MIMO [PDF]
In this paper, superimposed pilots are introduced as an alternative to time-multiplexed pilot and data symbols for mitigating pilot contamination in massive multiple-input multiple-output (MIMO) systems.
Karthik Upadhya +2 more
semanticscholar +1 more source
Red Army offensive in the North Caucasus in January -October 1943 was a milestone of the turning point in the course of the Great Patriotic War. It resulted in the defeat of the German army and its allies, the liberation of a large territory with a ...
I. Kiselev
doaj

