Results 21 to 30 of about 2,640,441 (306)

New photometric data for the old galactic cluster NGC 188. The presence of a gap, chemical composition, and distance modulus

, 1969
O. J. Eggen, Allan Sandage
openalex   +2 more sources

Hyades Distance Modulus and Stellar Interiors.

, 1967
P. Demarque
openalex   +3 more sources

The JHKs Magnitudes of the Red Giant Branch Tip and the Distance Moduli of Nearby Dwarf Galaxy NGC 205 [PDF]

Journal of Astronomy and Space Sciences, 2009
We have used the near-infrared JHKS photometric data of resolved stars in a nearby dwarf elliptical galaxy NGC 205 to determine the magnitudes of the red giant branch tip (TRGB).
M. Y. Jung, S.-H. Chun, C.-R. Chang, M. Han, D. Lim, W. Han, Y.-J. Sohn   +6 more
doaj   +1 more source

Near-IR TRGB Distance to Dwarf Elliptical Galaxy NGC 147 [PDF]

Journal of Astronomy and Space Sciences, 2007
We report the distance modulus of nearby dwarf elliptical galaxy NGC 147 estimated from the Tip of Red-giant Branch (TRGB) method applying to the color-magnitude diagrams and luminosity functions in the near-infrared JHK bands.
A. Kang, J.-W. Kim, I.-G. Shin, S.-H. Chun, H.-I. Kim, Y.-J. Sohn   +5 more
doaj   +1 more source

Creep Characterization of Inconel 718 Lattice Metamaterials Manufactured by Laser Powder Bed Fusion

Advanced Engineering Materials, EarlyView., 2023
Herein, the creep characteristics of additively manufactured Inconel 718 metamaterials are investigated. The creep behavior of metamaterials and the effects of microstructural defects are assessed, and the microstructure defects are accurately captured using Kachanov's creep damage model.
Akash Singh Bhuwal, Yong Pang, Ian Maskery, Ian Ashcroft, Wei Sun, Tao Liu   +5 more
wiley   +1 more source

Near-IR TRGB Distance to Nearby Dwarf Irregular Galaxy NGC 6822 [PDF]

Journal of Astronomy and Space Sciences, 2008
We report the distance modulus of nearby dwarf irregular galaxy NGC 6822 estimated from the so-called Tip of Red-giant Branch (TRGB) method. To detect the apparent magnitudes of the TRGB we use the color-magnitude diagrams (CMDs) and luminosity functions
Y.-J. Sohn, A. Kang, W, Han, J.-H. Park, H.-I. Kim, J.-W. Kim, I.-G. Shin, S.-H. Chun   +7 more
doaj   +1 more source

Conceptual Design and Parametric Optimization of a New Multileveled Horsetail Structure for Bicycle Helmets

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, Dong Ruan, Shanqing Xu, Kwong Ming Tse   +3 more
wiley   +1 more source

Deformation Characteristics of Bolted Rock Joints under Compression-Shear Load

Applied Sciences, 2022
Joints exist widely in tunnel engineering. Studying the deformation characteristics of the bolted joint is beneficial for preventing rock mass disasters. To reveal the deformation characteristics of bolted rock joints, the elastic solutions of the radial
Bo Liu, Hang Lin, Yifan Chen
doaj   +1 more source

A new load bearing capacity assessment method of the road pavement based on surface strain and the spectrum of the acceleration

SN Applied Sciences, 2023
Based on the coupling res model of vehicular and road, the influences of surface layer modulus, surface layer thickness and equivalent modulus of elasticity on the spectrum of the acceleration, surface deflection under wheels, and surface strain at the ...
Xiaolan Liu, Xianmin Zhang
doaj   +1 more source

Pull Out Resistance of Glued in Rod Parallel to Grain in Laminated Bamboo

Siklus: Jurnal Teknik Sipil, 2022
Research on hollow cross section beams and columns made of laminated bamboo has been carried out. So that the two elements can be assembled into a building structure, it is necessary to do connection.
Karyadi Karyadi, Wahyu Risky Nurpitasari, Nindyawati Nindyawati   +2 more
doaj   +1 more source