Results 91 to 100 of about 520,173 (313)

A detailed description of the uncertainty analysis for High Area Ratio Rocket Nozzle tests at the NASA Lewis Research Center [PDF]

open access: yes
A preliminary uncertainty analysis has been performed for the High Area Ratio Rocket Nozzle test program which took place at the altitude test capsule of the Rocket Engine Test Facility at the NASA Lewis Research Center.
Chuang, Isaac   +2 more
core   +1 more source

Building a Framework for Sexual and Reproductive Health Care in the Rheumatology Context: Content and Approaches

open access: yesArthritis Care &Research, EarlyView.
People with systemic autoimmune and rheumatic diseases (SARDs) are at higher risk than the general population of experiencing adverse pregnancy and perinatal outcomes such as preeclampsia, intrauterine growth restriction, and maternal and/or fetal death.
Mehret Birru Talabi, Sonya Borrero
wiley   +1 more source

Analytical investigation of supersonic turbomachinery blading. 2 - Analysis of impulse turbine-blade sections [PDF]

open access: yes
Surface Mach numbers, inlet flow angle, and specific heat ratio effects on geometric features of supersonic impulse turbine blade sections in Mach range 1.5 to 5.
Goldman, L. J.
core   +1 more source

Perceived Impacts and Predictors of Cannabis Products used by Rheumatology Patients in Alberta: A Multivariable Analysis of Cross‐sectional Survey Data

open access: yesArthritis Care &Research, Accepted Article.
Objective This study aimed to characterize cannabis product choices (cannabinoid content and formulation) among rheumatology patients, and their associations with patient factors, patient reported perceived side effects and positive impacts. Methods An online survey (delivered from March to November 2022) was distributed by Alberta Health Services to ...
Susan Zhang   +10 more
wiley   +1 more source

A Review on Liquid Pulsed Laser Propulsion

open access: yesAerospace
Laser propulsion is a new conceptual technology that drives spacecraft and possesses advantages such as high specific impulse, large payload ratio, and low launch cost.
Sai Li   +8 more
doaj   +1 more source

Krypton Ion Thruster Performance [PDF]

open access: yes
Preliminary data were obtained from a 30 cm ion thruster operating on krypton propellant over the input power range of 0.4 to 5.5 kW. The data presented are compared and contrasted to the data obtained with xenon propellant over the same input power ...
Patterson, Michael J.   +1 more
core   +1 more source

Associations of lifestyle‐related factors and psoriatic arthritis disease activity: the Dutch south west psoriatic arthritis study

open access: yesArthritis Care &Research, Accepted Article.
Objective This study aims to investigate lifestyle‐related factors in patients with psoriatic arthritis (PsA) and their association with disease activity measurements. Methods This multicenter cohort included 938 patients newly diagnosed with PsA, between 2013 and 2023. A composite lifestyle risk score (range 0 to 5) was calculated using five lifestyle‐
Batoul Hojeij   +11 more
wiley   +1 more source

Structural Vector Autoregressions with Nonnormal Residuals [PDF]

open access: yes
In structural vector autoregressive (SVAR) models identifying restrictions for shocks and impulse responses are usually derived from economic theory or institutional constraints.
Helmut Luetkepohl, Markku Lanne
core   +3 more sources

Energy Conversion Prediction Model of Expansion Tube under Near-Field Blast Loading

open access: yesGaoya wuli xuebao
The explosion near-field is the core zone of munition-induced damage, involving the coupled load effect of intense shock waves and detonation products. Currently, the mechanical response and energy conversion mechanisms of expansion tube structures (ETS)
Zizhen QI   +5 more
doaj   +1 more source

Propellant sidefeed-short pulse discharge thruster studies [PDF]

open access: yes
The technique of feeding a solid propellant into the discharge from the sides of the discharge was evaluated. The thrust/power ratio could be significantly effected by the included angle of V-shaped propellants and by the electrode length.
Guman, W. J., Palumbo, D. J.
core   +1 more source

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