Results 1 to 10 of about 16,569,210 (303)
A rapid screw-off device for drilling tools suitable for rescue drilling of complex coal seams
Meikuang Anquan, 2021 Aiming at the problem of low drilling technology in rescuing trapped persons in coal mine accidents, the factors affecting fast drilling are analyzed.
WANG Hejian, LI Dongsheng, LI Wangnian, WENG Yinsheng
doaj +1 more source
Analysis of axial offset units with WWER-1000 in the mode of maneuvering
Trudy Odesskogo Politehničeskogo Universiteta, 2014 The article examines the impact of xenon transient processes in power programs for regulating WWER-1000 reactor on its stability and reliability. Xenon transient processes in the power maneuvering mode of NPP affect the reactivity change in the active ...
Т.В. Фощ
doaj +5 more sources
Calculation of Angular Coordinates for the Control System of a Two-Link Industrial Robot Manipulator
Advanced Engineering Research, 2023 Introduction. One of the tasks of two-link manipulators of industrial robots that move the end-effector along complex trajectories (e.g., robot welder) is associated with the need for careful programming of their movement.
S. P. Glushko
doaj +1 more source
Advanced Engineering Research, 2023 Introduction. Mobile robots capable of omnidirectional movement are widely used in various fields of human activity. To provide high accuracy of positioning of omnidirectional platforms with mecanum wheels, it is required to develop their detailed ...
G. V. Pankrateva +2 more
doaj +1 more source
On Some Problems of Trajectory Beam Program Control. Part I
Известия Иркутского государственного университета: Серия "Математика", 2023 This paper deals with problems of program control of a trajectory beam. We investigate formulations that arise when considering problems of charged particle beams control, as well as, for example, in image processing.
D.A. Ovsyannikov, E. D. Kotina
doaj +1 more source
Mathematics, 2021 Controlled dynamic systems with an entropy operator (DSEO) are considered. Mathematical models of such systems were used to study the dynamic properties in demo-economic systems, the spatiotemporal evolution of traffic flows, recurrent procedures for ...
Yuri S. Popkov
doaj +1 more source
BMC Infectious Diseases, 2020 Background Monitoring hepatitis B surveillance data is important for evaluating progress towards global hepatitis B elimination goals. Accurate classification of acute and chronic hepatitis infections is essential for assessing program effectiveness ...
Hui Zheng +8 more
doaj +1 more source
American Journal of Public Health and the Nations Health, 1954 pox, cholera, and plague are now being replaced by accidental injury and poisoning, and by the traumatic and radiation hazards of nuclear energy. The same machine age responsible through its advances in sanitation, immunization, chemotherapy and antibiotics for controlling the damage done by the toxic products generated by germs that caused epidemics ...
E, PRESS, R B, MELLINS
openaire +3 more sources
Human Vaccines & Immunotherapeutics, 2021 Objective: Current evidence on the immunogenicity of influenza vaccination in patients with chronic obstructive pulmonary disease (COPD) is limited. To address this need for additional knowledge, we conducted a study on the immunogenicity of trivalent ...
Yan Li +13 more
doaj +1 more source
BMC Health Services Research, 2019 Introduction Female Sex workers (FSW) and their clients accounted for 18% of the new HIV infections in 2015/2016. Special community-based HIV testing service delivery models (static facilities, outreaches, and peer to peer mechanism) were designed in ...
Gerald Pande +7 more
doaj +1 more source