Results 81 to 90 of about 30,925 (214)

Limited musculoskeletal benefits of artificial gravity combined with cycling during bed rest: Results from the BRACE study

open access: yesExperimental Physiology, EarlyView.
Abstract Prolonged exposure to microgravity, simulated via 6° head‐down tilt bed rest (HDT), induces musculoskeletal deconditioning and negatively impacts body composition. This study evaluated whether a combination of aerobic exercise with artificial gravity (AG) offers superior protection in comparison to exercise alone.
Mirko Mandić   +7 more
wiley   +1 more source

A system-level mathematical model for evaluation of power train performance of load-leveled electric-vehicles [PDF]

open access: yes
The power train performance of load leveled electric vehicles can be compared with that of nonload leveled systems by use of a simple mathematical model. This method of measurement involves a number of parameters including the degree of load leveling and
Leising, C. J., Purohit, G. P.
core   +1 more source

Faraday rotation measurement method and apparatus [PDF]

open access: yes, 1981
A method and device for measuring Faraday rotation of a received RF signal is described. A simultaneous orthogonal polarization receiver compensates for a 3 db loss due to splitting of a received signal into left circular and right circular polarization ...
Brockman, M. H.
core   +1 more source

Hydrostatic compression on polypropylene foam [PDF]

open access: yes, 2014
Models currently used to simulate the impact behaviour of polymeric foam at high strain rates use data from mechanical tests. Uniaxial compression is the most common mechanical test used, but the results from this test alone are insufficient to ...
VIOT, Philippe
core   +2 more sources

Frequency Analysis of a Superconducting Magnetic Bearing System in Ring Spinning Using an Eddy Current Damper

open access: yesPAMM, Volume 26, Issue 1, March 2026.
ABSTRACT The conventional ring‐spinning process has been used for over a century, being one of the most used processes in the textile industry. However, this process has some disadvantages at high spindle speeds, such as friction in the traveler/ring components that generates heat, resulting in yarn breakages or lower‐quality production.
Yves Jesus Perez‐Delgado   +7 more
wiley   +1 more source

An Overview of the R&D of Flywheel Energy Storage Technologies in China

open access: yesEnergies
The literature written in Chinese mainly and in English with a small amount is reviewed to obtain the overall status of flywheel energy storage technologies in China.
Xingjian Dai   +4 more
doaj   +1 more source

Performance Evaluation of Rice Bran Oil—Waste Cooking Oil Binary Blend‐Based Biodiesel With Normal Diesel in CI Engine

open access: yesEngineering Reports, Volume 8, Issue 2, February 2026.
This study evaluates the performance and emissions of CI engines using biodiesel blends derived from rice bran and waste cooking oil, revealing that a 30% biodiesel blend significantly reduces emissions, while a 70% blend affects specific engine parameters. ABSTRACT This research investigates the performance, combustion, and emission characteristics of
S. Prathap Singh   +6 more
wiley   +1 more source

VARIABLE FLYWHEEL

open access: yesAvtomobilʹnyj Transport (Harʹkov), 2009
A new design of a variable flywheel for the internal combustion engine is suggested.
A. Ilchenko, V. Lomakin
openaire   +1 more source

Noise, Vibration, and Harshness (NVH) Challenges in Hydrogen Internal Combustion Engine Vehicles

open access: yesEnergy Science &Engineering, Volume 14, Issue 2, Page 1067-1080, February 2026.
ABSTRACT This paper presents a state‐of‐the‐art literature review on noise, vibration, and harshness (NVH) in hydrogen‐fuelled internal combustion engines. Studies published between 2011 and 2025 were screened, covering fundamental flame physics, test‐bench work, and recent prototype vehicles.
Krisztián Horváth
wiley   +1 more source

Bidirectional control system for energy flow in solar powered flywheel [PDF]

open access: yes, 1987
An energy storage system for a spacecraft is provided which employs a solar powered flywheel arrangement including a motor/generator which, in different operating modes, drives the flywheel and is driven thereby.
Nola, Frank J.
core   +1 more source

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