Results 11 to 20 of about 124,456 (313)
Advanced Engineering Materials, EarlyView., 2023 This study aims to explore the feasibility of using a structure inspired by the features of horsetail and human spine as the potential helmet liner, targeting at mitigation of acceleration‐induced injuries. A parametric study is conducted to investigate the effect of individual geometrical variables in the design, indicating its capability to reduce ...
Bing Leng +3 more
wiley +1 more source
Fluorescence Radiation and Thermal Effect at the Edge of the Disk-Shaped Laser Crystal
International Journal of Optics, 2022 The fluorescence radiation property at the edge of the thin disk crystal is very important to the design of thin disk lasers. In order to study this effect, in this paper, we established a theoretical model to describe the edge fluorescence radiation ...
Yongqian Chen +5 more
doaj +1 more source
Vertical Density Distribution of the Galaxy from Star Count Analysis [PDF]
Journal of Astronomy and Space Sciences, 2002 The five space density distribution D(z) with distance perpendicular to the Galactic plane were combined. The scale heights and the local densities at z = 0 of the thin disk, thick disk, and the halo components were estimated from the nonlinear least ...
Young-Jong Sohn
doaj +1 more source
The Newtonian potential of thin disks [PDF]
Astronomy & Astrophysics, 2011 Accepted for publication in A& ...
Franck Hersant +3 more
openaire +5 more sources
Yb:CaGdAlO_4 thin-disk laser [PDF]
Optics Letters, 2011 We present the first demonstration of a Yb:CALGO thin-disk laser. In a slightly multimode configuration, we obtained up to 30 W of average power at a slope efficiency of 40% and an optical-to-optical efficiency of 32%. With a single-mode cavity, an average power of 25 W was achieved.
Ricaud, Sandrine +12 more
openaire +5 more sources
The Astrophysical Journal, 2022 Accurate disk mass measurements are necessary to constrain disk evolution and the timescale of planet formation, but such measurements are difficult to make and are very dependent on assumptions. Here, we look at the assumption that the disk is optically
Z. Xin +4 more
doaj +1 more source
Rotating relativistic thin disks [PDF]
Physical Review D, 2000 18 eps figures, to be published ...
Guillermo A. González +1 more
openaire +2 more sources
Calculation of electrical impedance of oscillating piezoceramic disk in the area of high frequencies
Технічна інженерія, 2020 The relevance of the use of various functional elements of piezoelectronics in power and information systems is due primarily to their high reliability. As a result of research of mathematical model of the real device it is possible to define a specific ...
K.V. Bazilo +3 more
doaj +1 more source
Physical Review D, 2023 Thin disk accretion is often modeled in highly dynamical settings using the two-dimensional equations of viscous hydrodynamics, with viscosity representing unresolved turbulence. These equations are supposed to arise after vertical integration of the full three-dimensional equations of hydrodynamics, under the assumption of a geometrically thin disk ...
openaire +3 more sources
The AMBRE project: The thick thin disk and thin thick disk of the Milky Way [PDF]
Astronomy & Astrophysics, 2017 We analyze 494 main sequence turnoff and subgiant stars from the AMBRE:HARPS survey. These stars have accurate astrometric information from Gaia DR1, providing reliable age estimates with relative uncertainties of ±1 or 2 Gyr and allowing precise orbital determinations. The sample is split based on chemistry into a low-[Mg/Fe] sequence, which are often
Hayden, M. R. +4 more
openaire +4 more sources