Results 71 to 80 of about 3,673 (300)

Joy and Unrest: Transborder College Students' Sense of Belonging at the US–México Borderlands

New Directions for Higher Education, EarlyView.
ABSTRACT In this study, we present the Transborder College Student Sense of Belonging Model, developed to understand how to create an inclusive and validating campus climate for Transborder students in postsecondary and higher education institutions along the US–México borderlands.
Vannessa Falcón Orta, Carlos A. Fitch, Efren M. Lopez, Gilberto Reyes Morgan   +3 more
wiley   +1 more source

New Method of Tooth Pitch Deviation Measurement based on Laser Tracker for Mega Spur Gear

Jixie chuandong, 2019
To measure pitch deviation of mega spur gears, a new method for measuring the pitch of mega spur gears based on laser tracker is proposed. The measuring ability of laser tracker in large space is used to measure gear groove, and two adjacent pitch error ...
Zhang Bai, Lin Jiachun
doaj  

Joint Amplitude and Frequency Demodulation Analysis Based on Variational Mode Decomposition for Multifault Diagnosis of a Multistage Reducer

Shock and Vibration, 2018
Multistage reducer vibration signals have complicated spectral structures owing to the amplitude and frequency modulations of gear damage-induced vibrations and the multiplicative amplitude modulation effect caused by time-varying vibration transfer ...
Feng Li, Xinyu Pang, Zhaojian Yang
doaj   +1 more source

Talent Management in SMEs: Unraveling the Role of Contextual Factors

Human Resource Development Quarterly, EarlyView.
ABSTRACT Employing a multiple case study analysis, this paper explores the contextual factors—internal, external, and relational—that affect small and medium‐sized enterprises (SMEs) in designing their approaches to talent management (TM). Results underscore the significance of two prominent internal variables—namely, organizational size and ownership ...
Franca Cantoni, Caterina Muzzi, Martina Gianecchini   +2 more
wiley   +1 more source

Wear mechanisms in polyoxymethylene spur gears

Wear, 2019
Abstract The interaction of a polymer-steel spur gear pair is naturally prone to cause wear of the softer polymer material. Experimental equipment was therefore designed and constructed to run a polymer-steel spur gear pair with sufficiently accurate instrumentation such that the load and speed could be measured under a range of operating conditions.
Evans, Stuart, Keogh, Patrick
openaire   +2 more sources

Technological Evolution in Fintech: A Decadal Scientometric and Systematic Review of Developments and Criticisms

International Journal of Finance &Economics, EarlyView.
ABSTRACT This study aims to classify pivotal fintech innovations and explore the prospects and pitfalls associated with emerging fintech services extensively discussed in the literature. We conducted a multistage systematic review of research published on fintech over the past decade from a technological perspective. Using the Preferred Reporting Items
Muhammad Imran Qureshi, Nohman Khan
wiley   +1 more source

Molecular Spur Gears Comprising Triptycene Rotators and Bibenzimidazole-Based Stators

, 2012
Dynamic gearing of molecular spur gears, the most common type of mechanical gear, is elucidated. Molecular design and conformational analysis show that derivatives of 4,4-bis(triptycen-9-ylethynyl)bibenzimidazole represent suitable constructs to ...
Siegel, J S, Baldridge, K K, Frantz, D K, Linden, Anthony; https://orcid.org/   +3 more
core   +2 more sources

Research on Calculation Method of Gear Tooth Thermal Deformation Based on the Equivalent Gear Method

Jixie chuandong
Based on the calculation method of thermal deformation of spur gears, a calculation and analysis model of thermal deformation with equivalent spur gears as the object is formed.
Gao Xuepeng, Jiang Qinchen, Xiao Yang, Zhang Quanqing, Qiao Zheye   +4 more
doaj  

Influence on micro-geometry and surface characteristics of laser powder bed fusion built 17-4 PH miniature spur gears in laser shock peening

Advances in Industrial and Manufacturing Engineering
Micro-geometrical errors, surface roughness, and surface integrity (microstructure, residual stresses, microhardness) play an important role in defining the quality of the gears as they directly affect their noise, vibration characteristics and service ...
Sunil Pathak, Ondřej Stránský, Jan Šmaus, Jaromír Kopeček, Jinoop Arackal Narayanan, Jan Kaufman, Libor Beránek, Marek Böhm, Jan Brajer, Tomáš Mocek   +9 more
doaj   +1 more source

Simulation of Rotational Vibration of Spur Gears

Bulletin of JSME, 1983
This paper introduces a developed simulator on a rotational vibration and a strain at a root of a tooth, on a power transmission spur gear. The simulator solves a differential equation with one degree of freedom in consideration of the behaviour of the stiffness around tooth tip meshing.
UMEZAWA, Kiyohiko, SATO, Taichi, ISHIKAWA, Jiro   +2 more
openaire   +3 more sources