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Research of the influence of filter element resistance on the powered air-purifying respirator service life
Published 2024-11-01“…The following parameters of the simulation model of a powered air-purifying respirator were substantiated: controlling action – fan rotating speed, restrictions on air flow and air pressure in the respirator mask (depending on the mode of working arrangements of the user), concentration of dust in the air of the working area, capacity of the power source, power consumption of the electric motor of the fan and control system components, parameters of filter elements (fibre packing density, filter layer thickness, fibre diameter, etc.), input concentration of dust aerosol, which made it possible to establish the relationship between the value of the filter element resistance and the time to complete discharge of the power source. …”
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Contamination transport into saturated land upon advection-diffusionsorption including decay
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124
Walking gait biomechanics in individuals with quadriceps tendon autograft anterior cruciate ligament reconstruction
Published 2025-05-01“…Three-dimensional hip and knee kinematics and kinetics and vertical ground reaction force were assessed while participants walked at self-selected speeds. …”
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125
Laminar Combustion Characteristics of Ethanol-Hydrogen Premixed Fuel
Published 2025-03-01“…With the increase of the equivalent ratio, the molar fraction of H and O free radicals gradually decreased, and the molar fraction of OH free radicals first increased and then decreased. …”
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126
Comparative Analysis of Machine Learning Based Approaches for Face Detection and Recognition
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127
Pre-Sowing Treatment of Leguminous Crop Seeds with a Magnetic Field
Published 2019-02-01“…Pre-sowing treatment of seeds in a magnetic field can increase crop yields, reduce the incidence of plants and improve product quality.Research purpose To analyze the mechanism of the magnetic field influence on seeds, determine the most effective mode of pre-sowing treatment of leguminous crop seeds in a magnetic field and design parameters of the equipment.Materials and methods The authors have determined that under the influence of a magnetic field, the rate of chemical and biochemical reactions in plant cells increases, the transport of ions and molecules through the cell membrane increases, and the membrane permeability increases, so the sowing qualities of seeds improve and their yield increases. …”
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128
Wind-Induced Vibration Response and Weak Locations of 110 kV Diverging Branch Rods Under Strong Wind
Published 2025-03-01“…The 90° wind reaction angle represents the most adverse condition. …”
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129
The Influence of Running Technique Modifications on Vertical Tibial Load Estimates: A Combined Experimental and Machine Learning Approach in the Context of Medial Tibial Stress Syn...
Published 2025-04-01“…This study investigated whether changes to speed, cadence, stride length, and foot-strike pattern influence vGRF and TA. …”
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130
An Adiabatic-Expansion-Induced Perturbation Study on Gas–Aerosol Partitioning in Ambient Air—Formation of NH<sub>4</sub>NO<sub>3</sub> and Microdroplet Nitrogen Fixation (2)
Published 2025-05-01“…Moreover, our analysis suggests that the line speed of microdroplets may be one of the key factors in determining the occurrence, stoichiometric ratio and efficiency of the redox reaction. …”
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131
Current Analytical Methods and Challenges for the Clinical Diagnosis of Invasive Pulmonary Aspergillosis Infection
Published 2024-11-01“…Further study into methods that offer increased speed and both analytical and clinical sensitivity to decrease diagnosis time for IPA is warranted.…”
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Acetalization of glycerol with benzaldehyde to synthesize 1,3-PDO via terminal hydroxyl group protection: An experimental and kinetic study
Published 2025-06-01“…Amberlyst 15 exhibited excellent activity and stability over five reuse cycles, ensuring a clean reaction without catalyst deactivation. However, higher catalyst loading, elevated temperatures, and increased mole ratios led to undesired side products, such as methyl-2-hydroxy-3-phenylpropanoate. …”
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Healthcare worker perceptions of the FAST TB infection control strategy
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135
Elementary students' mathematics learning activities and outcomes through the application of the problem solving method
Published 2023-12-01“…The results showed an increase of 24 %. Student participation from 64 % in action I to 80 % in action II increased student learning outcomes by 41.2 %, from 44.1% in action I to 85.3% in action II. …”
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Threshold Effects, Sacrifice Ratio and Government Debt The Smooth Transition Regression Approach
Published 2024-09-01“…In fact, trade openness may shift some of the inflationary pressure to the balance of payments, resulting in lower average increases in the general price level. The positive effect of increasing speed of reducing inflation, in the second regime has led to an increase in the sacrifice ratio. …”
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Control of an Electrical Vector Drive of a Mechanical Variable Masses’ System
Published 2019-06-01“…It was shown that using the existing PI-regulators of speed and current and their settings, the speed dynamic error was found to be as high as 21% at a regulating action, whereas during the disturbing action it was 8%. …”
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SUPRESSION OF MICROSOMAL OXIDATION WEAKENS HISTOCHROME’S DIURETIC EFFECT AT RATS
Published 2013-06-01“…Most likely, echinochrome metabolite raises speed glomerular filtrations, providing diuretic reaction of a preparation.…”
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Comparative analysis of competitive activity parameters of amateur boxers high qualification
Published 2014-12-01“…As a result of innovations in the rules of the competition, boxing match was different higher intensity combat, attacking actions began to perform at a higher speed mode. Conclusions : As a result of the transition to the new formula of fighting to increase the density of the match. …”
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Back Propagation Neural Network-Based Predictive Model for Magnetorheological–Chemical Polishing of Silicon Carbide
Published 2025-02-01“…The results show that with increasing abrasive particle size, hydrogen peroxide concentration, workpiece rotational speed, and polishing disc rotational speed, the MRR first increases and then decreases. …”
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