Results 31 to 40 of about 7,121,089 (359)

Strength Analysis and Structure Optimization of the Crankshaft of an Opposed-Power Reciprocating Pump

open access: yesMachines, 2023
The opposed-power reciprocating pump has the characteristics of high pressure, large flow, and high efficiency and energy saving. However, due to the special structure of the opposed-power reciprocating pump, existing theoretical methods cannot analyze ...
Chuan Liu   +5 more
doaj   +1 more source

Effects of model-based design and loading on responses of base-isolated structures [PDF]

open access: yesИнженерно-строительный журнал, 2019
Numerical studies for a structural dynamic system are performed in Matlab and Simulink environments. Six different earthquakes filtered and corrected using Seismosignal software, are used as seismic loads during implementation.
A. Dushimimana   +3 more
doaj   +1 more source

Reducing Oscillations in Suspension of Mine Monorail Track

open access: yesApplied Sciences, 2023
Purpose: The goal of this work is to reduce the effect of dynamic loads on the mine timbering through the use of the elastic devices contained in the monorail suspension and to justify their parameters.
Viktor O. Gutarevich   +6 more
doaj   +1 more source

Using Light-Gas Guns in Testing the Strength of Solid Gun Propellant Grains [PDF]

open access: yesProblemy Mechatroniki
NATO Standardisation Agreements (STANAGs) 4241 and 4496 outline destructive testing procedures to determine how gun propellants in artillery munitions behave when struck by a 12.7 × 99 mm anti-tank projectile travelling at approximately 850 m/s, or by a ...
Paweł SZLĘZAK (paulus.szlezak@gmail.com)   +1 more
doaj   +1 more source

Investigation of Dynamic Loads in Wind Turbine Drive Trains Due to Grid and Power Converter Faults

open access: yesEnergies, 2021
Electrical faults can lead to transient and dynamic excitations of the electromagnetic generator torque in wind turbines. The fast changes in the generator torque lead to load oscillations and rapid changes in the speed of rotation.
Julian Röder   +4 more
doaj   +1 more source

A Method for the Combination of Stochastic Time Varying Load Effects [PDF]

open access: yes, 1983
The problem of evaluating the probability that a structure becomes unsafe under a combination of loads, over a given time period, is addressed. The loads and load effects are modeled as either pulse (static problem) processes with random occurrence ...
Pearce, H.T., Wen, Y.K.
core  

A Comparative Study of Cerebral Oxygenation During Exercise in Hemodialysis and Peritoneal Dialysis Patients

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Cognitive impairment and exercise intolerance are common in dialysis patients. Cerebral perfusion and oxygenation play a major role in both cognitive function and exercise execution; HD session per se aggravates cerebral ischemia in this population. This study aimed to compare cerebral oxygenation and perfusion at rest and in mild
Marieta P. Theodorakopoulou   +10 more
wiley   +1 more source

Mechanism continuously measures static and dynamic cable loads [PDF]

open access: yes, 1966
Pulley mechanism measures the tensile loads on a cable under static and dynamic conditions, without disturbing the continuity of operation of the system.

core   +1 more source

Analysis of rockburst in tunnels subjected to static and dynamic loads

open access: yes, 2017
The presence of geological structures such as faults, joints, and dykes has been observed near excavation boundaries in many rockburst case histories. In this paper, the role of discontinuities around tunnels in rockburst occurrence was studied. For this
Amin Manouchehrian, M. Cai
semanticscholar   +1 more source

Organoids in pediatric cancer research

open access: yesFEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

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