Results 71 to 80 of about 481,356 (205)

Replication Data for Kalmoe and Piston POQ 2013

open access: yes
This dataverse contains data and Stata dofiles for the three survey datasets used in: Kalmoe, Nathan P., and Spencer Piston. 2013. "Is Implicit Racial Prejudice Against Blacks Politically Consequential? Evidence from the AMP." Public Opinion Quarterly
Piston, Spencer
core   +2 more sources

A Numerical Study on Influence of Temperature on Lubricant Film Characteristics of the Piston/Cylinder Interface in Axial Piston Pumps

open access: yesEnergies, 2018
The loss of kinetic energy of moving parts due to viscous friction of lubricant causes the reduction of piston pump efficiency. The viscosity of lubricant film is mainly affected by the thermal effect. In order to improve energy efficiency of piston pump,
Yueheng Song, Jiming Ma, Shengkui Zeng
doaj   +1 more source

Recent Advances in Biogas Production and Upgrading Technologies for Sustainable Energy Systems

open access: yesGCB Bioenergy, Volume 18, Issue 11, November 2026.
Biogas technology is evolving from waste treatment into an intelligent renewable energy platform. Recent advances in anaerobic digestion, pretreatment, reactor design, biomethane upgrading, and AI‐driven process control improve methane recovery, stability, and gas purity.
Temechew Dessie   +2 more
wiley   +1 more source

Measuring Dry Deposition of Sea Spray Aerosol and Height of Aerosol Plume Using a Controlled Wave Pool

open access: yesJournal of Geophysical Research: Atmospheres, Volume 131, Issue 19, 16 October 2026.
Abstract Deposition of sea spray aerosols facilitates atmospheric corrosion of materials, requiring maintenance and replacement over time. However, the dimensions of sea spray aerosol plumes produced from breaking waves have not been well‐characterized, limiting useful prediction of particle transport downwind and atmospheric corrosion. Therefore, this
Alexander J. Johnson   +6 more
wiley   +1 more source

To question of designing of axial-piston pumps with valve-slit distribution

open access: yes, 2015
Рассмотрены вопросы проектирования аксиально-поршневых насосов (АПН). Предложена программа для расчета аксиально-поршневых насосов с клапанно-щелевым распределением в среде программного обеспечения MathCad, которая позволяет на этапе проектирования ...
Фатеева, Надежда Николаевна
core  

Lubrication, Friction and Wear Characteristics of Textured Surface Slipper Pairs in Axial Piston Pumps

open access: yesLubricants
The study investigates the impact of textured surface parameters and pump operating parameters on the friction performance of slipper pairs in axial piston pumps.
Bin Bian   +5 more
doaj   +1 more source

Multiscale Modelling of the Electrocatalysis of Microenzymes: Insights Into the Performance of Microperoxidase at an Aqueous/Graphene Interface and Their Exploitation to Improve Performance

open access: yesAdvanced Science, Volume 13, Issue 55, 5 October 2026.
A novel multiscale MD/DFT framework to elucidate microenzyme adsorption and electron transfer is reported. This method reveals distinct configurations for microperoxidase‐11 on graphene and those best suited for electron transfer. Rate constants align with the limited experimental data, establishing this framework as a tool for optimizing microenzyme ...
Milan Mijajlovic   +6 more
wiley   +1 more source

Research on the Influence of Piston Pair Wear on Pump Output Characteristics of Axial Piston Pump Under Multiple Working Conditions

open access: yesMachines
To clarify the nonlinear degradation of volumetric performance caused by piston–cylinder wear in axial piston pumps under multiple operating conditions, this study develops an integrated framework linking local wear-induced leakage to whole-pump output ...
Sibo Liu   +5 more
doaj   +1 more source

RELIABILITY RESEARCH ON HYDRAULIC AXIAL PISTON PUMP

open access: yesProceedings of the JFPS International Symposium on Fluid Power, 1989
This paper describes the reliability of 25 SCY hydraulic axial piston pumps. On the basis of investigations, experiments and theoretical analyses, the pump failure mode and failure mechanism were found. The statistical study of test data was done, the failure distribution function and the distribution parameters were determined, and the pump life was ...
Chen, Zhao-neng, Wang, Jun-gong
openaire   +2 more sources

FastCat: Autonomous Discovery of Multielement Layered Double Hydroxide Alloy Catalysts for Alkaline Oxygen Evolution Reaction

open access: yesAdvanced Intelligent Discovery, Volume 2, Issue 5, October 2026.
A machine learning‐guided self‐driving laboratory screened over 500 nickel‐based layered double‐hydroxide catalysts for alkaline oxygen evolution. Out of the eight metals, the robot uncovered a quaternary Ni–Fe–Cr–Co catalysts requiring only 231 mV overpotential to reach 20 mA cm−2.
Nis Fisker‐Bødker   +3 more
wiley   +1 more source

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