Results 81 to 90 of about 349,185 (242)

Interactional privilege of violence: Status and interaction in the street field

open access: yesCriminology, EarlyView.
Abstract Criminologists have long described and theorized the relationship between status, respect, and violence within urban communities. Although this finding is generally accepted within criminology, ethnographic empirical illustrations of this phenomenon are sparse.
Hakan Kalkan, Heith Copes
wiley   +1 more source

Simulation analysis and verification of brake shoe wear for urban rail vehicles

open access: yes机车电传动
Frequent braking applications for speed regulation of urban rail vehicles cause repeated friction at elevated temperatures between the wheels and brake shoes, which accelerates brake shoe wear. This paper presents a study of wear patterns for brake shoes
XUE Wensheng   +3 more
doaj  

Wear analysis of elevator brake shoe

open access: yesJournal of Physics: Conference Series, 2022
Abstract The brake is the key equipment to ensure the safe operation of the elevator. Failure of the elevator brake will lead to a slide accident. This paper takes the elevator brake shoe, which has been used for more than 15 years, as the research object, and systematically analyzes its wear characteristics.
openaire   +1 more source

Quantum‐Enhanced Weighted Gene Co‐Expression Network Analysis Reveals Regulatory Networks Underlying Sexual Size Dimorphism in Macrobrachium nipponense

open access: yesIntegrative Zoology, EarlyView.
A quantum‐enhanced weighted gene co‐expression network analysis framework integrating quantum amplitude amplification is developed to overcome sample size constraints in zoological genomics. This noise‐tolerant analytical strategy enables robust network reconstruction for non‐model species with limited biological replicates.
Seok‐Jin Kang, Hongchul Shin
wiley   +1 more source

Evaluation of Service Brake Braking of Selected Group of Vehicles Depending on Wear of Brake System‘s Parts

open access: yesActa Technologica Agriculturae
The paper deals with the evaluation of service brake braking of a selected group of vehicles depending on the wear of brake system‘s parts. During the research, the technical condition of brake systems, the degree of wear of brake discs, brake pads, and ...
Kožuch Peter   +3 more
doaj   +1 more source

The Service Life Prediction for Brake Pads of Freight Wagons

open access: yesCommunications
The analysis of the statistical values of wear of brake pads in operation, based on which a wear model was developed, is presented in this paper. This model can be used for predicting the remaining service life of brake pads according to the wagon ...
Sergii Panchenko   +3 more
doaj   +1 more source

Risk Scenarios for European Rearmament

open access: yesGlobal Policy, EarlyView.
ABSTRACT Since Russia's invasion of Ukraine in 2022, the European Union has launched a flurry of initiatives to ramp up European defence spending. Efforts to bolster European defence have further intensified in response to the United States' increasingly hostile stance towards its erstwhile European allies.
Mette Eilstrup‐Sangiovanni
wiley   +1 more source

Study on microstructure and property of typical copper-based brake pads

open access: yesFenmo yejin jishu
To address the issues of low friction coefficient, poor stability, and high wear of the traditional copper-based brake pads under high-temperature braking conditions, the copper-based brake pads were prepared by high temperature solid-phase hot-pressing ...
DIWU Xiaofei   +2 more
doaj   +1 more source

Injustice, relational violence, and the foster system

open access: yesAmerican Journal of Political Science, EarlyView.
Abstract Political theorists have not paid sustained attention to the foster system or treated it as a political institution. Despite this, scholars and social movement advocates have identified the system as a site of social and political injustice. This paper develops an account of racial, class, and relational injustice in the contemporary US foster
Emma Ebowe
wiley   +1 more source

Test study on fatigue life of cast iron and carbon-ceramic brake discs based on thermal-mechanical-wear coupled simulation

open access: yesJixie chuandong
ObjectiveSince existing research on brake discs has primarily focused on single materials and has rarely considered both wear feedback and fatigue life validation simultaneously, the coupled thermal-mechanical-wear behavior and differences in fatigue ...
Sun Chao   +3 more
doaj  

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