Results 31 to 40 of about 10,932 (206)

Welfare and Felt Duration

open access: yesNoûs, EarlyView.
ABSTRACT How should we understand the duration of a pleasant or unpleasant sensation, insofar as its duration modulates how good or bad the experience is overall? Given that we seem able to distinguish between subjective and objective duration and that how well or badly someone's life goes is naturally thought of as something to be assessed from her ...
Andreas L. Mogensen
wiley   +1 more source

Transient Hydrodynamic Characteristics of a High-Speed Axial Flow Water-Jet Pump during Variable Speed Process

open access: yesJournal of Marine Science and Engineering, 2023
To investigate the transient characteristics of high-speed axial flow water-jet pumps during start-up and emergency acceleration as well as to analyze how different accelerations affect the performance of internal flow, the k–ω turbulence model of the ...
Rongsheng Zhu   +6 more
doaj   +1 more source

Impacts of A‐Site Composition on the Cation Dissolution‐Mediated Surface Restructuring of Layered Nickelate Oxide Electrocatalysts During Alkaline Oxygen Evolution Reaction

open access: yesChemElectroChem, Volume 13, Issue 6, 17 March 2026.
This work shows that A‐site composition dictates the restructuring of Ruddlesden–Popper nickelate oxides (A2‐xA’xNiO4; A = La, Eu, Gd; A’ = Sr; x = 0–1.5) under alkaline oxygen evolution reaction conditions and suggests that electrocatalytic stability is governed by an interplay between dissolution‐mediated site exposure and Ni oxidation state ...
Hyungdon Joo   +3 more
wiley   +1 more source

Stall and leading-edge vortex in a centrifugal compressor with vaned diffuser

open access: yesNihon Kikai Gakkai ronbunshu, 2015
The experimental and CFD analysis were conducted to investigate the relationship between stall and leading-edge vortex (LEV) in a centrifugal compressor with vaned diffuser.
Nobumichi FUJISAWA   +2 more
doaj   +1 more source

AABA Task Force on the Ethical Study of Human Remains Recommendations: Proposal for the Management and Oversight of Community Partnership and Ethical Stewardship of Human Remains

open access: yesAmerican Journal of Biological Anthropology, Volume 189, Issue 3, March 2026.
ABSTRACT Ethically responsible and culturally acceptable management, study, and stewardship of legacy skeletal and other human remains currently held and managed in scientific institutions is a longstanding concern that, over the length of these collections' existence, has been exiguously addressed.
Benjamin M. Auerbach   +11 more
wiley   +1 more source

Numerical investigation of centrifugal compressor stability enhancement using vaned diffuser endwall contouring technology

open access: yesEnergy Science & Engineering, 2022
To improve the stable operating range of centrifugal compressor stage, endwall contouring technology is introduced on the hub‐side wall of the vaned diffuser for NASA CC3 centrifugal compressor as a promising technique to redistribute the flow field near
Qin Cui   +4 more
doaj   +1 more source

Numerical Investigation of Transonic Axial Compressor Rotor With Leading‐Edge Tubercles

open access: yesEngineering Reports, Volume 8, Issue 3, March 2026.
Amplitude, wavelength, and span‐wise location of the leading‐edge tubercles on a transonic NASA Rotor 37 compressor are numerically optimized. An increase in efficiency by 0.52% compared to the corresponding baseline rotor is observed. The location of the shockwave moves downstream of the rotor with 1.91% higher pressure.
Muhammad Hamza   +6 more
wiley   +1 more source

Comparative Numerical Studies for the Flow Energy Dissipation Features in a Vertical Two‐Stage Centrifugal Pump in Pump and Turbine Conditions

open access: yesEnergy Science &Engineering, Volume 14, Issue 2, Page 764-779, February 2026.
Based on entropy theory, this study presents a comparative numerical analysis of the flow energy dissipation (FED) in a VTSP under two distinct operating conditions: pump condition and turbine condition, both characterized by relatively high hydraulic efficiencies of 88.9% and 87.4%, respectively. In pump condition, the highest FED production occurs in
S. Liu   +5 more
wiley   +1 more source

Experimental and Numerical Investigation of a Novel Vortex Reducer in a Co-Rotating Cavity of Aeroengines

open access: yesAerospace
Improving airflow pressure is of great significance for the cooling and sealing of aeroengines. In a co-rotating cavity with radial inflow, vortex reducers are used to decrease the pressure drop. However, the performance of traditional vortex reducers is
Wenjie Shen   +4 more
doaj   +1 more source

Shrouded Wind and Water Turbine Analytical Model Extensions for Tip Gaps, Center Bodies, and Flow Blockage

open access: yesWind Energy, Volume 29, Issue 2, February 2026.
ABSTRACT This paper provides improvements to a previously presented simple, accurate, lower order analytical model for predicting the performance of horizontal‐axis shrouded turbines for a wide range of shroud airfoil shapes varying in length, camber, and thickness. The new, extended model incorporates explicit quantitative predictions of those effects
M. J. Werle
wiley   +1 more source

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