Results 1 to 10 of about 77,572 (263)

Three-dimensional computed tomography morphometric analysis of lumbar endplates in Chinese young adults [PDF]

open access: yesFrontiers in Surgery
PurposeTo analyze the morphological characteristics of the lumbar 4 (L4)- Sacral 1 (S1) endplates in the Chinese young adults lumbar spine based on three-dimensional (3D) computed tomography (CT) scans, providing a reference for the design and ...
Yukai Cui   +10 more
doaj   +2 more sources

3D stability analysis method of concave slope based on the Bishop method

open access: yesInternational Journal of Mining Science and Technology, 2017
In order to study the stability control mechanism of a concave slope with circular landslide, and remove the influence of differences in shape on slope stability, the limit analysis method of a simplified Bishop method was employed.
Liu Han
exaly   +3 more sources

Advanced mirror shapes for mode enhancement in plano-concave cavities [PDF]

open access: yesScientific Reports
Optical cavities are frequently used in quantum technologies to enhance light matter interactions, with applications including single photon generation and entanglement of distant emitters.
William J. Hughes, Peter Horak
doaj   +2 more sources

Experimental and Numerical Investigation of the Heat Transfer of Honeycomb-Structured Tubes

open access: yesThermo, 2023
Tube bundle recuperators are generally designed to operate with smooth tubes. Structured tubes can be used to increase the efficiency of recuperators. Compared to smooth tubes, the surface for heat transfer is increased and thus heat transfer is enhanced.
Eileen Trampe   +2 more
doaj   +1 more source

A Novel Smart Optimized Capacitance-Based Sensor for Annular Two-Phase Flow Metering With High Sensitivity

open access: yesIEEE Access, 2023
Accurately determining phase fractions in two-phase flows is among the most significant issues in Industries related to the production and processing of petroleum and petrochemicals.
Rahmad B. Y. Syah   +5 more
doaj   +1 more source

Assessment of Turbulence Models over a Curved Hill Flow with Passive Scalar Transport

open access: yesEnergies, 2022
An incoming canonical spatially developing turbulent boundary layer (SDTBL) over a 2-D curved hill is numerically investigated via the Reynolds-averaged Navier–Stokes (RANS) equations plus two eddy-viscosity models: the K−ω SST (henceforth SST) and the ...
David Paeres   +2 more
doaj   +1 more source

Construction of Concave PdAg Nanoshells with Limited Thickness for Efficient Electroxidation of Ethanol

open access: yesFrontiers in Materials, 2021
Noble metal nanocrystals enclosed with curved surfaces are of great benefit for applications in electrocatalysis since the atomic steps and kinks on these facets have higher chemical activity.
Quanlin Wu   +6 more
doaj   +1 more source

Calculation of cams with concave profile in the MATHCAD system [PDF]

open access: yesОмский научный вестник, 2022
The article shows the features of the cam with concave profile, the method of kinematic calculation of the pusher when it moves along a concave and rounded surface.
V. V. Ryndin   +3 more
doaj   +1 more source

Seat-to-Head Transmissibility Responses of Seated Human Body Coupled with Visco-Elastic Seats

open access: yesVibration, 2022
This study investigated the seat-to-head vibration transmissibility (STHT) responses of 58 subjects (31 males and 27 females) seated on three different elastic seats with (WB) and without back support (NB) and under three levels of vertical vibration (0 ...
K. N. Dewangan, Yumeng Yao, S. Rakheja
doaj   +1 more source

Gender and Anthropometric Effects on Seat-to-Head Transmissibility Responses to Vertical Whole-Body Vibration of Humans Seated on an Elastic Seat

open access: yesVibration, 2023
This study investigated the effects of gender and ten different anthropometric parameters on the vertical vibration transmission from seat to the head of the body seated on an elastic seat.
Yumeng Yao   +2 more
doaj   +1 more source

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