Results 31 to 40 of about 24,284 (286)

The resistive ground fault of PWM voltage inverter in the EV charging station

open access: yesScientific Reports, 2021
During the direct touch of the inverter output voltage or with the ungrounded shield of the cable connecting the inverter to the motor or other type of load, the nonsinusoidal ground currents with a basic harmonic frequency between 1.5 and 16 kHz, flow ...
Marta Zurek-Mortka, Jerzy R. Szymanski
doaj   +1 more source

Threshold Potential Simulation on Grounding System using CYMGround Substation Program

open access: yesJurnal Elkomika
Excessive fault current on a poor grounding system can cause several symptoms such as the appearance of touch and step voltage and affect the grounding resistance value.
AYU FITRIANI   +5 more
doaj   +1 more source

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

open access: yesFEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source

Refinement of amino‐acid conformation vs. difference density maps in time‐resolved serial femtosecond crystallography data analysis

open access: yesFEBS Open Bio, EarlyView.
The dFoCC pipeline starts with observed DED and resting‐state coordinates, which are then used to generate a library of triggered states. Correlation analysis of the calculated DED features of each candidate vs observed DED permits quantitative evaluation of candidate structural quality.
Meng Iao Fong   +3 more
wiley   +1 more source

Procedure for the Determination of the Appropriate Protective Foil Size to Reduce Step Voltage Using a FEM Model and Evolutionary Methods

open access: yesApplied Sciences
When a fault occurs in a power transmission system, voltages that are dangerous to people may occur. The aim of this work is to present the following method of protection: the use of protective foil installed at the appropriate depth around the ...
Marko Jesenik   +3 more
doaj   +1 more source

Pharmacological inhibition of the PERK pathway modulates hepatocellular carcinoma growth and immune signaling

open access: yesFEBS Open Bio, EarlyView.
Pharmacological inhibition of PERK in a DEN‐induced mouse model of liver cancer does not reduce tumor burden but alters cellular stress signaling. Despite blocking PERK activity, downstream stress responses, including CHOP expression, remain active, suggesting compensatory mechanisms within the unfolded protein response that may influence tumor ...
Ada Lerma‐Clavero   +5 more
wiley   +1 more source

Static electric field detection and behavioural avoidance in cockroaches

open access: yes, 2008
Electric fields are pervasively present in the environment and occur both as a result of man-made activities and through natural occurrence. We have analysed the behaviour of cockroaches to static electric fields and determined the physiological ...
Newland, Phillip L.   +5 more
core   +1 more source

Artificial Intelligence and Mental Well‐Being in Adult Education: Implications for Practice and Professional Responsibility

open access: yesNew Directions for Adult and Continuing Education, EarlyView.
ABSTRACT Mental well‐being is central to adult learner success, yet many adult education institutions lack capacity to provide timely and accessible support. This article examines how artificial intelligence (AI) can strengthen mental health–adjacent supports in adult and continuing higher education, with attention to professional practice and ...
Adam L. McClain, Thomas Wade
wiley   +1 more source

ANALYSIS OF WIND TURBINE GROUNDING SYSTEMS IN TERMS OF TOUCH AND STEP VOLTAGES

open access: yesElectrica, 2019
Power generation from renewable resources is increasingly growing. The numbers of wind turbines and wind farms are increasing as well. Wind turbines and wind farms require grounding systems in order to protect the living creatures and turbine components ...
Çağrı KÖKSAL, Ömer GÜL
doaj   +2 more sources

Comparison of two simple high-frequency earthing electrodes [PDF]

open access: yes, 2004
Lightning strikes on high-voltage transmission lines may create hazardous touch potentials on adjacent substation equipment and damage to control equipment.
Pilling, N., Stoll, R.L., Chen, G.
core   +1 more source

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