Results 111 to 120 of about 301,963 (259)

Azimuth DOA Estimation Using Concentric Coprime Uniform Circular Array With Sparse Bayesian Learning

open access: yesIEEE Access
Estimation of direction-of-arrival (DOA) is a fundamental problem in array signal processing. The uniform circular array (UCA) is a highly useful array geometry for DOA estimation, especially in electronic warfare (EW), as it possesses useful properties ...
Sanjay Pandav, P. Ubaidulla
doaj   +1 more source

Large scale optimization applications on the aircraft and aircrew recovery problems and their integration

open access: yes, 2021
The air transport industry has always been an interesting research area and the researchers in the operations research field have been developing solution algorithms and optimization tools for airlines since 1950s. The airlines are now capable of managing their key planning process and schedules using these optimization tools.Today, the airlines spend ...
openaire   +1 more source

Building safe software [PDF]

open access: yes, 1986
Murphy is a set of techniques and tools under investigation for their potential in enhancing the safety of software.
Leveson, Nancy G.
core   +1 more source

War and Peace: Ogawa Takemitsu's Theological Engagement with State and Religion

open access: yesJournal of Religious History, EarlyView.
The Manchurian Incident of 1931 marked a pivotal moment in the rise of Japanese fascism. During the period from this incident until the Pacific War's defeat, dissent from the state's control was not tolerated, leading to coercive measures in religious communities. The Christian community, rather than devising theological reasoning to resist the state's
Eun‐Young Park, Do‐Hyung Kim
wiley   +1 more source

Research on Shockwave/Boundary Layer Interactions Induced by Double Compression Corners Under Hypersonic Quiet and Noise Inflow Conditions

open access: yesAerospace
The problem of shock wave/boundary layer interaction induced by compression corners widely exists in the external and internal flows of various supersonic/hypersonic aircraft.
Dongsheng Zhang   +3 more
doaj   +1 more source

Winston Churchill and South Africa: An Enduring, yet Debatable Connection, 1899–1955

open access: yesHistory, EarlyView.
Abstract The article traces Churchill's engagement with South Africa, from his time as a newspaper correspondent during the Anglo‐Boer War to his services in both Liberal and Conservative cabinets as well as, ultimately, his premiership. The discussion highlights three phases in this relationship.
LUVUYO WOTSHELA
wiley   +1 more source

Thermophysical characteristics with natural convective flow of Carreau fluid influencing by Soret and Dufour effects: By using numerical technique

open access: yesInternational Journal of Thermofluids
The authors are attracted to conduct this study because it has a major dependence on scientific, medical, and engineering works, including heat exchangers, geothermal systems, reactive flow in chemical reactors, blood flow in arteries, groundwater flow ...
T. Salahuddin   +2 more
doaj   +1 more source

NASA aviation safety reporting system [PDF]

open access: yes
The study deals with 165 inadvertent operations on or into inappropriate portions of the aircraft areas at controlled airports. Pilot-initiated and controller-initiated incursions are described and discussed.

core   +1 more source

Drones: Emergence of a transformative technology for island rodent eradications

open access: yesConservation Science and Practice, EarlyView.
Drones have emerged as a potentially powerful tool to address an ongoing need for alternative rodent eradication solutions on remote islands. This potential has now been demonstrated in a diverse set of operations across the Pacific. In the coming decades, this novel toolset also offers the possibility to step beyond existing paradigms and imagine a ...
Donal Smith   +3 more
wiley   +1 more source

Managing Innovative Development in International Tourism through Favorable Conditions for Foreign Investment

open access: yesChallenges and Issues of Modern Science
Purpose. This study aims to analyze the role of information and communication technologies and innovative investment in managing the development of international tourism.
Volodymyr Dzhyndzhoian   +2 more
doaj   +1 more source

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