Results 81 to 90 of about 499,224 (333)

Responsive change in local resistances and adjacent influencing characteristics to the combined deformation of elbow and tee pipes

Guan'gai paishui xuebao
【Objective】 The objective of this paper is to explore the response of local resistance and adjacent influence characteristics to combined deformation of elbow and tee pipes in irrigation water transmission network. 【Method】 The combined deformation parts
SHI Xi, TIAN Yunxia, GONG Li, TAO Hu, TAN Chunbin   +4 more
doaj   +1 more source

The Horizontal Branch of NGC 1851: Constraints from its RR Lyrae Variables

, 2012
We use the pulsational properties of the RR Lyrae variables in the globular cluster NGC 1851 to obtain detailed constraints of the various sub-stellar populations present along its horizontal branch.
Amigo, Pia, Cassisi, Santi, Catelan, Marcio, de Propris, Roberto, Kunder, Andrea, Salaris, Maurizio, Stetson, Peter B., Walker, Alistair   +7 more
core   +1 more source

A Spectroscopic Survey of Field Red Horizontal-branch Stars [PDF]

The Astronomical Journal, 2018
Abstract A metallicity, chemical composition, and kinematic survey has been conducted for a sample of 340 candidate field red horizontal-branch (RHB) stars. Spectra with high resolution and high signal-to-noise ratio were gathered with the McDonald Observatory 2.7 m Tull and the Hobby–Eberly Telescope echelle spectrographs, and were used
Melike Afşar, Zeynep Bozkurt, Gamze Böcek Topcu, Dana I. Casetti-Dinescu, Christopher Sneden, Gizem Şehitog̅lu   +5 more
openaire   +4 more sources

Laser‐Microscribed Glass Enables Surface‐Microfluidics‐Facilitated, Affordable, Rapid Cancer Diagnosis

Advanced Functional Materials, EarlyView.
A transparent, laser‐microscribed glass platform enables cancer diagnosis within 1 h—much faster than histology, which takes days, and free from the chemical or contrast risks of MRI or CT scans. The antibody‐functionalized rough glass surface captures viable cancer cells directly from suspension, allowing instant optical readout and offering a rapid ...
Anish Pal, Snehasis Mishra, Arani Mukhopadhyay, Ilias Papailias, Atique U. Ahmed, Constantine M. Megaridis   +5 more
wiley   +1 more source

Horizontal Branch Morphology and Mass Loss in Globular Clusters

, 2008
The connection between mass loss on the red giant branch (RGB) and horizontal branch (HB) morphology in globular clusters (GCs) has long been acknowledged but the mechanisms governing mass loss remains poorly understood from a theoretical perspective ...
Aaron Dotter, Catelan, Catelan, D'Antona, Dotter, Ferraro, Lee, Lee, Milone, Origlia, Origlia, Piotto, Pritzl, Rey, VandenBerg, Zinn   +15 more
core   +1 more source

Line Broadening in Field Metal-poor Red Giant and Red Horizontal Branch Stars [PDF]

, 2007
We report 349 radial velocities for 45 metal-poor field red giant and red horizontal branch stars. We have have identified one new spectroscopic binary, HD 4306, and one possible such system, HD 184711.
Alonso A., Arribas S. & Martinez Roger C., Bruce W. Carney, David W. Latham, Gratton R. G., Gray D. F. & Pallavicini R., John B. Laird, Kinman T., Kurucz R. L., Latham D. W., Latham D. W., Lupton R. H., Mayor M. & Mermilliod J.-C., Nordström B., Recio-Blanco A., Robert P. Stefanik, Stefanik R. P.   +16 more
core   +3 more sources

Micro and Nanostructural Diversity of Lizard Osteoderm Capping Tissue in Relation to Mechanical Performance

Advanced Functional Materials, EarlyView.
This study shows that lizard osteoderm capping tissue is a hyper‐mineralized hydroxyapatite layer consistently covering the superficial osteoderm surface in those species studied here, yet it varies greatly in morphology, nanostructure, and mechanical performance across species.
Adrian Rodriguez‐Palomo, Marius Didziokas, Malene Siri Berg Jacobsen, Thorbjørn Erik Køppen Christensen, Innokenty Kantor, Mads Ry Vogel Jørgensen, Klaus Pagh Almtoft, Jesper Skovhus Thomsen, Anthony Herrel, Catherine J.A. Williams, Henrik Birkedal   +10 more
wiley   +1 more source

The peculiar horizontal branch morphology of the Galactic globular clusters NGC 6388 and NGC 6441: new insights from UV observations [PDF]

, 2007
Context. In this paper we present multiband optical and UV Hubble Space Telescope photometry of the two Galactic globular clusters NGC 6388 and NGC 6441. Aims.
Busso, G., Cassisi, S., Castellani, M., Catelan, M., Djorgovski, S. G., Piotto, G., Recio Blanco, A., Renzini, A., Romaniello, M.   +8 more
core  

The Impact of Rotation on the Evolution of Low-Mass Stars

, 2007
High precision photometry and spectroscopy of low-mass stars reveal a variety of properties standard stellar evolution cannot predict. Rotation, an essential ingredient of stellar evolution, is a step towards resolving the discrepancy between model ...
Christopher A. Tout, Daniel Brown, Guenter Houdek, Maurizio Salaris, Rebecca G. Martin, Richard J. Stancliffe   +5 more
core   +1 more source

Horizontal Branch Stellar Evolution

, 1995
I review aspects of the evolution of horizontal branch (HB) stars. I start by discussing current topics in the study of HB stellar evolution, including a brief review of the main determinants of the structure of low-mass core helium burning stars and of HB morphology.
openaire   +2 more sources