Results 21 to 30 of about 165 (130)

Nanocrystalline hydroxyapatite/si coating by mechanical alloying technique. [PDF]

Bioinorg Chem Appl, 2012
A novel approach for depositing hydroxyapatite (HA) films on titanium substrates by using mechanical alloying (MA) technique has been developed. However, it was shown that one‐hour heat treatment at 800°C of such mechanically coated HA layer leads to partial transformation of desired HA phase to beta‐tri‐calcium phosphate (β‐TCP) phase. It appears that
Hannora AE, Mukasyan AS, Mansurov ZA.
europepmc   +2 more sources

Laboratory Predictors of Hemorrhagic Complications in Patients With Total Hip Arthroplasty and Treatment With Direct Oral Anticoagulants

, 2023
Introduction. Direct oral anticoagulants (DOAC) rivaroxaban and apixaban have significantly reduced the risk of developing venous thromboembolic complications (VTEC).
A. N. Tkachenko, I. L. Urazovskaya, V. M. Khaidarov, L. B. Gaikovaya, D. Sh. Mansurov, B. G. Aliyev, K. N. Zamyatina, A. G. Balgley   +7 more
core   +2 more sources

Energy Evolution and Acoustic Emission Characteristics of Sandstone Specimens under Unloading Confining Pressure

Shock and Vibration, Volume 2019, Issue 1, 2019., 2019
The acoustic emission characteristics of rock specimens under different initial unloading confining pressures were tested to obtain the damage and rupture characteristics of the sandstone unloading confining pressure path. The CT scan and three‐dimensional reconstruction of the fractured rock specimens were carried out to study the differences of ...
Tao Qin, Yanwei Duan, Hongru Sun, Honglei Liu, Lei Wang, Luca Pugi   +5 more
wiley   +1 more source

Soot volume fraction profiling of asymmetric diffusion flames through tomographic imaging [PDF]

, 2014
This paper presents the 3-D (three-dimensional) reconstruction of soot volume fraction of diffusion flames based on tomographic imaging and image processing techniques.
Hossain, Md Moinul, Hossain, Md. Moinul, Yan, Yong, Md. Moinul Hossain, Yong Yan, Gang Lu, Lu, Gang   +6 more
core   +1 more source

Experimental Study on Stress Evolution and Microseismic Signals under Vibration Conditions of Coal during Excavation and Subsequent Waiting Time

Shock and Vibration, Volume 2019, Issue 1, 2019., 2019
An experiment designed to simulate coal during excavation was conducted. Microseismic signals of coal under vibration conditions during excavation and subsequent waiting time of the coal roadway at different excavation speeds were collected and analyzed.
Qifei Wang, Chengwu Li, Pingyang Lyu, Yuechao Zhao, Dihao Ai, Beijing Xie, Chao Tao   +6 more
wiley   +1 more source

Solar Wind and Seasonal Influence on Ionospheric Currents From Swarm and CHAMP Measurements

Journal of Geophysical Research: Space Physics, Volume 123, Issue 5, Page 4402-4429, May 2018., 2018
Abstract We present a new climatological model of the ionospheric current system, determined from magnetic measurements taken by the Challenging Minisatellite Payload (CHAMP) and Swarm satellites. The model describes the horizontal currents in the ionosphere, below the satellites, and the field‐aligned (Birkeland) currents that connect the ionosphere ...
K. M. Laundal, C. C. Finlay, N. Olsen, J. P. Reistad   +3 more
wiley   +1 more source

How the IMF By induces a By component in the closed magnetosphere and how it leads to asymmetric currents and convection patterns in the two hemispheres

Journal of Geophysical Research: Space Physics, Volume 120, Issue 11, Page 9368-9384, November 2015., 2015
Abstract We used the Lyon‐Fedder‐Mobarry global magnetohydrodynamics model to study the effects of the interplanetary magnetic field (IMF) By component on the coupling between the solar wind and magnetosphere‐ionosphere system. When the IMF reconnects with the terrestrial magnetic field with IMF By≠0, flux transport is asymmetrically distributed ...
P. Tenfjord, N. Østgaard, K. Snekvik, K. M. Laundal, J. P. Reistad, S. Haaland, S. E. Milan   +6 more
wiley   +1 more source

Role of poleward moving auroral forms in the dawn-dusk auroral precipitation asymmetries induced by IMF B-y

, 2007
In a case study we document the detailed spatial/temporal structure of the aurora in the 0900–1500 magnetic local time (MLT) sector during an interval of steady southeast IMF orientation.
Farrugia, Charlie J., Sandholt, P. E.
core   +1 more source

Mg3N2 nanocrystallites formation during the GaN:Mg layers growth by the NH3-MBE technique

, 2021
The work is devoted to the study of p-GaN: Mg epitaxial layers grown by the ammonia MBE technique. We find that the conductivity of GaN layers doped with Mg does not change with a postgrowth heat treatment.
Malin, T., V, Ber, B. Ya, Ratnikov, V. V., Zhuravlev, K. S., Galitsyn, Yu G., Milakhin, D. S., Shcheglov, M. P., Davydov, V. Yu, Kazantsev, D. Yu, Mansurov, V. G., Protasov, D. Yu, Smirnov, A. N.   +11 more
core   +1 more source

Study on Rockburst Nucleation Process of Deep‐Buried Tunnels Based on Microseismic Monitoring

Shock and Vibration, Volume 2015, Issue 1, 2015., 2015
The objective of this study was to investigate the rockburst nucleation process and provide a theoretical basis for its prediction. A microseismic monitoring system was established in deep tunnels at Jinping II Hydropower Station. Using a digital multichannel microseismic monitoring system and monitoring technique, twenty‐four‐hour continuous real‐time
Qun Yu, Chun-An Tang, Liancong Li, GuanWen Cheng, Lie-Xian Tang, Vadim V. Silberschmidt   +5 more
wiley   +1 more source