Results 51 to 60 of about 3,408,458 (372)

Microstructure evolution of hydrated cement pastes [PDF]

Physical Review E, 2005
We propose an original method based on both proton nuclear magnetic relaxation dispersion and high-resolution NMR spectra to investigate the microstructure of synthesized Ca3SiO5-hydrated cement paste. This method allows a clear assessment of the local proton chemical sites as well as the determination of dynamical information of moving proton species ...
Plassais, A., Pomies, M.P., Lequeux, N., Korb, J.P., Petit, D., Barberon, F., Bresson, B.   +6 more
openaire   +3 more sources

High cycle fatigue of ARMCO iron severely deformed by ECAP [PDF]

, 2017
The high-cycle fatigue behavior of ARMCO iron severely deformed by Equal Channel Angular Pressing (ECAP) at room temperature through route Bc until 8 passes, with an average grain size of ~365 nm, was studied and compared with the same material in the ...
Cabrera Marrero, José M., Higuera Cobos, Oscar Fabián, Muñoz Bolaños, Jairo Alberto   +2 more
core   +2 more sources

Microstructural evolution of helium-implanted α-SiC [PDF]

Physical Review B, 2000
Helium has a decisive effect on the microstructure of silicon carbide materials after implantation and subsequent annealing. A dense population of bubbles and dislocation loops is already observed at relatively low displacement doses after annealing of helium-implanted \ensuremath{\alpha}-SiC, while no visible damage appears after irradiation without ...
Chen, J., Jung, P., Trinkhaus, H.
openaire   +2 more sources

In-situ Polarized Neutron Reflectometry: Epitaxial Thin Film Growth of Fe on Cu(001) by DC Magnetron Sputtering

, 2017
The step-wise growth of epitaxial Fe on Cu(001)/Si(001), investigated by in-situ polarized neutron reflectometry is presented. A sputter deposition system was integrated into the neutron reflectometer AMOR at the Swiss neutron spallation source SINQ ...
Böni, Peter, Haese, Martin, Herrnberger, Alexander, Korelis, Panagiotis, Kreuzpaintner, Wolfgang, Mairoser, Thomas, Mannhart, Jochen, Mayr, Sina, Moulin, Jean-Francois, Pomm, Matthias, Schmehl, Andreas, Stahn, Jochen, Wiedemann, Birgit, Ye, Jingfan   +13 more
core   +1 more source

Microscopic seepage simulation of gas and water in shale pores and slits based on VOF

Open Physics
The microscopic pore-fracture structure and wettability have a significant influence on the two-phase seepage of shale gas and water. Due to the limitation of experimental conditions, the seepage patterns of gas and water in shale pores and slits under ...
Wang Benqiang, Han Denglin, Lin Wei, Nie Xin, Wang Chenchen, Zhang Jizhen   +5 more
doaj   +1 more source

Factors Controlling Differences in Morphology and Fractal Characteristics of Organic Pores of Longmaxi Shale in Southern Sichuan Basin, China

Fractal and Fractional
Shale gas is a prospective cleaner energy resource and the exploration and development of shale gas has made breakthroughs in many countries. Structure deformation is one of the main controlling factors of shale gas accumulation and enrichment in complex
Yuanlin Wang, Denglin Han, Wei Lin, Yunqian Jia, Jizhen Zhang, Chenchen Wang, Binyu Ma   +6 more
doaj   +1 more source

Data supporting the hierarchically activated deformation mechanisms to form ultra-fine grain microstructure in carbon containing FeMnCoCr twinning induced plasticity high entropy alloy

Data in Brief, 2022
This article presents data regarding the research paper entitled “Hierarchically activated deformation mechanisms to form ultra-fine grain microstructure in carbon containing FeMnCoCr twinning induced plasticity high entropy alloy [1]”.
Mohsen Saboktakin Rizi, Hossein Minouei, Byung Ju Lee, Hesam Pouraliakbar, Mohammad Reza Toroghinejad, Sun Ig Hong   +5 more
doaj   +1 more source

Detection of polarized quasi-periodic microstructure emission in millisecond pulsars [PDF]

, 2016
Microstructure emission, involving short time scale, often quasi-periodic, intensity fluctuations in subpulse emission, is well known in normal period pulsars. In this letter, we present the first detections of quasi-periodic microstructure emission from
De, Kishalay, Gupta, Yashwant, Sharma, Prateek   +2 more
core   +3 more sources

Accelerated Progression of Gait Impairment in Parkinson's Disease and REM Sleep Without Atonia

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective People with Parkinson's disease (PD) and rapid eye movement (REM) sleep without atonia (RSWA) often have more severe gait disturbances compared to PD without RSWA. The association between the presence and expression of RSWA and the rate of progression of gait impairment in PD is unknown.
Sommer L. Amundsen‐Huffmaster, Jae Woo Chung, Maria E. Linn‐Evans, Matthew N. Petrucci, Chiahao Lu, Destiny J. Weaver, Joshua De Kam, Scott E. Cooper, Paul J. Tuite, Aleksandar Videnovic, Michael J. Howell, Colum D. MacKinnon   +11 more
wiley   +1 more source

Co effect on rapid solidification microstructure transition of highly undercooled copper alloys

Journal of Materials Research and Technology, 2023
The present work systematically studied nonequilibrium solidification microstructure and its morphology evolution with undercooling of Cu60Ni40 binary alloy and Cu60Ni35Co5 ternary alloy, and the characteristic undercooling degree of alloy evolution was ...
Xiaolong Xu, Qi Wu, Yongchao Hao, Li Wu, Yuhong Zhao, Hua Hou   +5 more
doaj   +1 more source