Effect of casing treatment of overall performance of axial-flow transonic fan stage with pressure ratio of 1.75 and tip solidity of 1.5 [PDF]
The effect of a number of casing treatments on the overall performance of a 1.75-pressure-ratio, 423-m/sec-tip-speed fan stage was evaluated. The skewed slot configuration with short-open slots over the midportion of the rotor had a stall margin of 23.5 ...
Moore, R. D., Osborn, W. M.
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When Rare Is Not Small: Amyotrophic Lateral Sclerosis Initiatives and Therapy
Exploration, EarlyView.In the precision‐medicine era, rare diseases must not be sidelined in translational infrastructure. The Mr. Cai Lei—led “Ice‐Breaking Team” turns an amyotrophic lateral sclerosis patient community into a sustainable ecosystem, realigning philanthropy, data, and research and development to reshape rare‐disease pipelines and guide precision therapies ...
Yang Liu +6 more
wiley +1 more source
Axial compressor blades tip leakage flow control using natural aspiration. [PDF]
Sci Rep, 2023 Nejad PG, Zenouz RT.
europepmc +1 more source
A preliminary evaluation of an F100 engine parameter estimation process using flight data [PDF]
The parameter estimation algorithm developed for the F100 engine is described. The algorithm is a two-step process. The first step consists of a Kalman filter estimation of five deterioration parameters, which model the off-nominal behavior of the engine
Gilyard, Glenn B. +2 more
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Feminist Anthropology, EarlyView.Abstract This article examines how mobility restrictions imposed by governments during the COVID‐19 pandemic intensified reproductive and mobility injustices. It traces shifting configurations of privilege and inequality within marginalized groups whose reproductive desires remain legally and socially unrecognized.
Sara L. Friedman
wiley +1 more source
Multi-fidelity modelling of a high bypass ratio turbofan engine with variable area nozzle
Propulsion and Power ResearchLow pressure ratio fans of modern civil turbofans suffer from reduced stall margin in the take-off operating line and at part-speed, requiring variable geometry devices.
Andrea Magrini, Ernesto Benini
doaj +1 more source
Effects of tip clearance on overall performance of transonic fan stage with and without casing treatment [PDF]
The overall performance of a transonic fan stage is presented for various tip clearances, with and without casing treatment. The stage was tested with a solid casing, and with open skewed slots and closed skewed slots in the casing over the rotor blade ...
Moore, R. D., Osborn, W. M.
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Forecasting Count Data With Varying Dispersion: A Latent‐Variable Approach
Journal of Forecasting, EarlyView.ABSTRACT Count data, such as product sales and disease case counts, are common in business forecasting and many areas of science. Although the Poisson distribution is the best known model for such data, its use is severely limited by its assumption that the dispersion is a fixed function of the mean, which rarely holds in real‐world scenarios.
Easton Huch +3 more
wiley +1 more source
Energy Efficient Engine: Flight propulsion system final design and analysis [PDF]
The Energy Efficient Engine (E3) is a NASA program to create fuel saving technology for future transport engines. The Flight Propulsion System (FPS) is the engine designed to achieve E3 goals.
Davis, Donald Y., Stearns, E. Marshall
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Dairy farming in Uganda. Production Efficiency and Soil Nutrients under Different Farming Systems [PDF]
, 2007 Prior to the 1980s, milk production in Uganda occurred largely in two contrasting production systems. In the wetter parts of the country, especially in the southwest, there were a few large, mostly government-owned commercial dairy farms on which exotic ...
Baltenweck, I. +5 more
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