Results 21 to 30 of about 4,944,995 (298)
BMC Infectious Diseases, 2022 Background Although the prevalence of hepatitis B in Guangzhou, China, is high, the epidemiological trends are not well-documented. We aimed to analyse newly reported hepatitis B cases in Guangzhou between 2009 and 2020 to explore the epidemiological ...
Wei Liu +7 more
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Operator associated with the and Ψ operators [PDF]
Journal of Taibah University for Science, 2018 This paper will discuss a new operator on ideal topological spaces and characterizations of some generalized open sets. Further, it will discuss some decompositions of generalized continuities and a brief discussion on resolvability.
Md. Monirul Islam, Shyamapada Modak
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Integrating Fatigue Management with Safety Management Systems for Commercial Flightcrew Operations
International Journal of Aviation, Aeronautics, and Aerospace, 2017 Fatigue remains a significant hazard in commercial aviation and has been a major concern among all stakeholders for decades. This review of the literature explores the current prescriptive structure of the regulatory environment (Part 117) and its effect
Arnold W Starr
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Estimating Airport Operations at General Aviation Airports Using the FAA NPIAS Airport Categories
International Journal of Aviation, Aeronautics, and Aerospace, 2017 The number of annual aircraft operations (take-offs and landings) is a significant concern to both airport owners and operators and to governmental agencies because operations data are one of the most important criteria used for determining future ...
Mary E Johnson, Yue Gu
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Design of core thermocouple adaptive plug-and-pull device [PDF]
E3S Web of Conferences, 2022 In the process of change and maintenance material of nuclear power plants, due to the uncontrollable driving force of the existing core thermocouple insertion and removal tools, it is easy to cause the thermocouple to be installed in place, the ...
Zhou Jianhua +4 more
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Situational Leadership Styles in United States Air Force Air Traffic Control Towers
International Journal of Aviation, Aeronautics, and Aerospace, 2014 Leadership in air traffic control facilities is critical to the safe, orderly, and efficient flow of air traffic. The purpose of this qualitative study was to determine the preferred leadership style for United States Air Force air traffic control tower ...
William D. Melton +2 more
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Fomin-Greene monoids and Pieri operations [PDF]
, 2013 We explore monoids generated by operators on certain infinite partial orders. Our starting point is the work of Fomin and Greene on monoids satisfying the relations $(\u{r}+\u{r+1})\u{r+1}\u{r}=\u{r+1}\u{r}(\u{r}+\u{r+1})$ and $\u{r}\u{t}=\u{s}\u{r}$ if $
Benedetti, Carolina, Bergeron, Nantel
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Spitzer Warm Mission Transition and Operations [PDF]
, 2010 Following the successful dynamic planning and implementation of IRAC Warm Instrument Characterization activities, transition to Spitzer Warm Mission operations has gone smoothly.
Garcia, Lisa J. +8 more
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The Journal of Thoracic and Cardiovascular Surgery, 2003 AbstractJ Thorac Cardiovasc Surg 2003;125 ...
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Measuring the effect of node aggregation on community detection
EPJ Data Science, 2020 Many times the nodes of a complex network, whether deliberately or not, are aggregated for technical, ethical, legal limitations or privacy reasons. A common example is the geographic position: one may uncover communities in a network of places, or of ...
Yérali Gandica +4 more
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