Results 31 to 40 of about 13,293,543 (349)
Case Studies in Construction Materials, 2023 Shear tests on sandstone containing non-connected joints under the unloading normal stress but fixed shear stress conditions were conducted with various initial normal stress and unloading rate.
Qian Yin +5 more
doaj +1 more source
Clinical consequences of changing the sliding window IMRT dose rate [PDF]
Journal of Applied Clinical Medical Physics, 2012 Changing pulse repetition frequency or dose rate used for IMRT treatments can alter the number of monitor units (MUs) and the time required to deliver a plan. This work was done to develop a practical picture of the magnitude of these changes. We used Varian's Eclipse Treatment Planning System to calculate the number of MUs and beam‐on times for a ...
Ghasroddashti, E. +3 more
openaire +2 more sources
Interface roughness effect on friction map under fretting contact conditions [PDF]
, 2010 In many industrial applications where fretting damage is observed in the contact (e.g. rotor/blade, electrical contacts, assembly joint, axe/wheel, clutch) the external loadings or geometry design cannot be changed. Therefore, the surface preparation and
Mathia, T.G. +5 more
core +1 more source
A dissolution-diffusion sliding model for soft rock grains with hydro-mechanical effect
Journal of Rock Mechanics and Geotechnical Engineering, 2018 The deformation and failure of soft rock affected by hydro-mechanical (HM) effect are one of the most concerns in geotechnical engineering, which are basically attributed to the grain sliding of soft rock.
Z. Liu +4 more
doaj +1 more source
Frontiers in Earth Science, 2022 Creep behavior of landslide sliding zones is closely related to the long-term stability and safety of landslides. In this paper, shear creep tests are carried out on undisturbed samples of the gravel sliding zone in the Zhoujia landslide.
Shizhuang Chen +10 more
doaj +1 more source
Frictional sliding tests on combined coal-rock samples
Journal of Rock Mechanics and Geotechnical Engineering, 2014 A test system was developed to understand the sliding mechanism of coal-rock structure. The test system was composed by a double-shear testing model and an acousto-optic monitoring system in association with a digital camera and an acoustic emission (AE)
Tao Wang +3 more
doaj +1 more source
Multirate Output Feedback based Frequency Shaped Sliding Mode Control [PDF]
, 2006 This paper proposes a design of frequency shaped sliding mode controller using fast output sampling technique. A compensator is introduced in the sliding surface to attenuate the frequency component of the sliding mode dynamics so that the unmodelled ...
BANDYOPADHYAY, B +5 more
core +1 more source
Sensorless Control Method for SPMSMs Based on Improved Sliding Mode Reaching Rate [PDF]
, 2023 Due to the advantages of simple structure, small size, and high power density, permanent magnet synchronous motors (PMSM) have attracted the research interest of many scholars both domestically and abroad. However, traditional PMSM equipped with sensors,
Wei Chen +4 more
core +1 more source
ANTISEIZURE CHARACTERISTICS OF LEADED ALUMINUM ALLOYS UNDER DRY SLIDING CONDITIONS
Journal of Engineering, 2010 Aluminum-Silicon alloys, with soft lubricant metal, are considered to be one of the important tribological alloys which resist seizure. The effect of different lead percentages (1-20%Pb) that added to the modified eutectic Al-12%Si alloy on the wear ...
Akeel D. Subhi
doaj +1 more source
Strain rate and temperature dependence of Omori law scaling constants of AE data: Implications for earthquake foreshock-aftershock sequences [PDF]
, 2004 Little is known about the temperature and strain rate dependence of acoustic emission AE activity (AE). Hence, we carried out a preliminary series of flow-through triaxial compression tests on porous sandstones at different temperatures and strain rates.
Ira O. Ojala +3 more
core +1 more source