Results 101 to 110 of about 12,877 (244)

Transmission Efficiency Measurements and Correlations with Physical Characteristics of the Lubricant [PDF]

Data from helicopter transmission efficiency tests were compared to physical properties of the eleven lubricants used in those tests. The tests were conducted with the OH-58 helicopter main rotor transmission.
Coy, J. J., Hamrock, B. J., Mitchell, A. M.   +2 more
core   +1 more source

The Relationship Among Climate Policy Uncertainty and Energy Markets: Fossil Versus Renewable and Low‐Carbon Assets

International Journal of Finance &Economics, EarlyView.
ABSTRACT This paper investigates the intricate relationship between climate policy uncertainty (CPU) and energy market dynamics, focusing on fossil‐based and renewable/low‐carbon energy assets. Utilising a comprehensive dataset spanning from April 1987 to December 2023, comprising monthly observations of CPU, stock market returns, spot oil prices and ...
Dimitrios Asteriou, Anastasia Dimiski
wiley   +1 more source

Complement C3 mediates adolescent social isolation‐induced hippocampal synaptic deficits and sex‐specific emotional dysfunction

Interdisciplinary Medicine, EarlyView.
Adolescent social isolation disrupts hippocampal function and exacerbates emotional symptoms, with sex‐specific patterns, as shown by human studies. In mice, social isolation decreased hippocampal synaptic density and calcium signaling, upregulated complement proteins, and activated complement‐mediated microglial synaptic phagocytosis.
Yuwan Qi, Siying Weng, Qiao Yin, Mengqi Li, Liang Shen, Enyou Qiao, Lu Gao, Yihan Wang, Yuxuan Li, Weifeng Luo, Qilin Zhang, Jing Wang, Jianfeng Feng, Qifei Cong   +13 more
wiley   +1 more source

Analysis of splash lubrication cooling characteristics in urban rail transit train gearbox

Jixie chuandong
ObjectiveThe gear drive device of urban rail trains adopts splash lubrication method. To study the influence of lubrication and cooling characteristics on the transmission efficiency and service life of gearboxes under splash lubrication mode, reveal its
YANG Linjie, ZHANG Bohan, CHEN Huixiao, SI Haonan, SHI Lubing   +4 more
doaj  

Design comparison of cesium and potassium vapor turbine-generator units for space power [PDF]

Design comparison of cesium and potassium vapor turbogenerator units for space power ...
Burton, D. W., Fraas, A. P., Laverne, M. E., Wilson, L. V.   +3 more
core   +1 more source

Design and verification of novel powertrain management for multi-geared battery electric vehicles [PDF]

, 2016
University of Technology Sydney. Faculty of Engineering and Information Technology.Despite the long-term benefit of battery electric vehicles (BEVs) to customers and the environment, the initial cost and limited driving range present the significant ...
Ruan, Jiageng
core  

When Does Top Management Team Diversity Matter in Large Organizations?

Journal of Organizational Behavior, EarlyView.
ABSTRACT Top management teams (TMTs) drive strategic leadership, but there is little clarity on when the composition of these upper echelons most impacts organization performance. Drawing from the categorization‐elaboration model, we study an 18‐year sample of approximately 4500 organizations and over 32 000 executives and find a positive relationship ...
Frances Fabian, James M. Plečnik, Shan Wang   +2 more
wiley   +1 more source

CSR disclosure and investment efficiency in MENA countries: The moderating role of CSR committee

Strategic Change, EarlyView.
ABSTRACT Corporate social responsibility disclosure (CSRD) is often recognized as a transparency mechanism that allows companies to communicate their commitment to CSR. However, CSRD may also exacerbate agency conflicts. This study addresses these two contrasting perspectives by investigating the impact of CSRD on investment efficiency and exploring ...
Mohamed Malek Belhoula, Imen Khanchel, Naima Lassoued, Rouba Jebri   +3 more
wiley   +1 more source

Valorization of Sour Buttermilk (A Potential Waste Stream): Conversion to Powder Employing Reverse Osmosis and Spray Drying. [PDF]

Membranes (Basel), 2023
Manik S, Meena GS, Singh AK, Khetra Y, Singh R, Arora S, Vishweswaraiah RH.   +6 more
europepmc   +1 more source

Static and Dynamic Analysis of Porous Gas Bearings Lubricated With Air, Refrigerant R‐134a, Helium and Hydrogen

Lubrication Science, EarlyView.
ABSTRACT Porous gas bearings (PGBs) enable high‐speed, oil‐free operation in modern rotating machinery. This study develops a coupled thermo‐hydrodynamic (THD) model for a cylindrical porous gas bearing lubricated with four working fluids—air, R‐134a, helium and hydrogen.
S. Bechiri, B. Bouchehit, B. Bou‐Saïd
wiley   +1 more source