Results 91 to 100 of about 267 (225)

Problem of Damage to Curved Switch Rails in Ordinary Turnouts

open access: yesProblemy Kolejnictwa - Railway Reports, 2018
Czarnecki, Marcin, Bińkowski, Robert
openaire   +1 more source

Implementation of Youth Empowerment Services (YES) juvenile justice diversion program: A first‐person account

open access: yesAmerican Journal of Community Psychology, EarlyView.
Abstract In Santa Barbara County, the Youth Empowerment Services (YES) Program brought together several government and community‐based organizations, as well as a university‐based evaluation team, to provide pre‐adjudication diversion to youth ages 12 to 17.
Angela Pollard   +7 more
wiley   +1 more source

Universal vote-by-mail has no impact on partisan turnout or vote share. [PDF]

open access: yesProc Natl Acad Sci U S A, 2020
Thompson DM, Wu JA, Yoder J, Hall AB.
europepmc   +1 more source

Intelligent Identification Method for ZDJ-9 AC Turnout Switch Machine Faults

open access: yesChengshi guidao jiaotong yanjiu
Objective By analyzing abnormal three-phase action currents of AC switch machines, it is possible to identify faults in the turnout equipment. However, due to the constant operation of switch machines for large number of turnouts on urban rail transit lines, operation and maintenance personnel cannot monitor the action current curves of all switch ...
openaire   +1 more source

Two‐Dimensional Polymers as Modular Metal‐Free Solid‐State Catalysts for Efficient Sono‐Piezo‐Photocatalytic Hydrogen Peroxide Production

open access: yesAngewandte Chemie International Edition, EarlyView.
This study demonstrates the high piezo‐photocatalytic activity of solid molecular catalysts (SMCs) in the production of hydrogen peroxide from water and oxygen. Through the rational design of molecular motifs (diphenylpyridine or terpyridine) and backbone functionalities (methyl group, aliphatic amine antenna, or aromatic pyrrole unit), as well as ...
Sarah Brettschneider   +7 more
wiley   +1 more source

Patient flow time data of COVID-19 vaccination clinics in 23 sites, United States, April and May 2021. [PDF]

open access: yesVaccine, 2023
Cho BH   +7 more
europepmc   +1 more source

Numerical Simulation of Switch and Crossing Towards an Optimized Turnout Design

open access: yes, 2018
Switch and crossing (S&C) or turnout is a mechanical component within railway infrastructure that provides flexibility for train to switch from one track to another. However, such flexibility requires certain degree of geometry changes and discontinuities and these changes often result in high impact forces.
openaire   +1 more source

A Review of Turnout Switch Machine Fault Diagnosis Technology Based on Deep Learning

open access: yesChengshi guidao jiaotong yanjiu
[Objective]The turnout switch machine fault diagnosis techniques based on deep learning is summarized, the application status of various deep learning methods in turnout switch machine fault diagnosis is analyzed, their advantages and limitations are explored, and future research directions are proposed. [Method]The importance and challenges of turnout
LEI Yunpeng   +3 more
openaire   +1 more source

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