Results 121 to 130 of about 66,745 (254)

Gas turbine engine fuel control [PDF]

, 1973
A variable orifice system is described that is responsive to compressor inlet pressure and temperature, compressor discharge pressure and rotational speed of a gas-turbine engine.
Gold, H. S.
core   +1 more source

A Semi‐Analytical Energy Model for Particle‐Based Fluid Simulation Involving Complex Moving Boundaries

Computer Graphics Forum, EarlyView.
Abstract While semi‐analytical boundary handling techniques have proven effective for modeling particle‐based fluid‐solid interactions, they can become unstable when applied to mesh boundaries undergoing dynamic motion or featuring complex, sharp geometries.
Junyuan Liu, Shusen Liu, Yuzhong Guo, Ruikai Liang, Ying Li, Xiaowei He   +5 more
wiley   +1 more source

Green Developmentalism? The Political Economy of Hydropower in India in the 21st Century

Development and Change, EarlyView.
ABSTRACT This article critically examines the political economy of hydropower in India since its global reconfiguration as ‘green energy’ in the early 2000s. While an opportune convergence of interests among key global, national and subnational stakeholders contributed to the greening of hydropower in India, this reframing did not produce the expected ...
Vasudha Chhotray, Harsh Vasani
wiley   +1 more source

Interplanetary propulsion using inertial fusion [PDF]

, 1987
Inertial fusion can be used to power spacecraft within the solar system and beyond. Such spacecraft have the potential for short-duration manned-mission performance exceeding other technologies.
Diaz, F. C., Hoffman, N., Hogan, W. J., Klein, G., Murray, K., Orth, C. D.   +5 more
core   +1 more source

Flow‐controlled expiration improves gas exchange in anaesthetised horses undergoing orthopaedic surgery

Equine Veterinary Journal, EarlyView.
Abstract Background Flow‐controlled expiration (FLEX) has been shown to significantly enhance oxygenation in horses under laboratory conditions. Objective This study aims to corroborate these findings by evaluating the effects of FLEX on gas exchange in a randomised clinical trial involving a large population of clinical horses undergoing orthopaedic ...
Klaus Hopster, Joao Henrique Neves Soares, David Levine, Kyla Ortved, Bernd Driessen, Joaquin Araos   +5 more
wiley   +1 more source

Optimal design of blade in pump as turbine based on multidisciplinary feasible method. [PDF]

Sci Prog, 2020
Sen-Chun M, Hong-Biao Z, Ting-Ting W, Xiao-Hui W, Feng-Xia S.   +4 more
europepmc   +1 more source

Dynamic Capabilities as Drivers of Circular Business Models: Exploring Direct and Indirect Relationships

Journal of Product Innovation Management, EarlyView.
ABSTRACT Academic Summary Despite the urgent need for a circular economy, firms' transition from linear to circular business models (CBMs) remains slow. While previous research suggests that dynamic capabilities are the key drivers of this transition, it assumes a direct link, overlooking that these capabilities can facilitate change but do not ...
Jörn Block, Thomas Clauss, Matheus Franco, Timo Lemcke, Hubert Speth   +4 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

Energy Science & Engineering
The vertical two‐stage centrifugal pump (VTSP) is well‐suited for small pumped storage power stations with high head and low discharge, such as those found in underground mines.
S. Liu, T. P. Chen, Y. Li, M. Q. Liang, Y. J. Zhang, X. Z. Wei   +5 more
doaj   +1 more source

3D Compressible Flow Analysis of an Ultra-High-Head Pumped Storage Unit with Water Conveyance System at Maximum Pumping Head

Energies
Severe pressure pulsations caused by complex flow fields in pumped-storage power stations significantly threaten operational safety and stability. With advances in computational technology, fully three-dimensional simulations coupling pipelines and pump ...
Zhixing Li, Xinbo Li, Xingxing Huang, Tao Li, Meng Liu, Zhengwei Wang   +5 more
doaj   +1 more source

Composite load spectra for select space propulsion structural components [PDF]

The objective of this program is to develop generic load models with multiple levels of progressive sophistication to simulate the composite load spectra that are induced in space propulsion system components, representative of Space Shuttle Main Engines
Ho, H., Kurth, R. E., Newell, J. F.
core   +1 more source