Results 41 to 50 of about 2,193,375 (255)

Pullout Capacity Of Cylindrical Block Embedded In Sand

open access: yesStudia Geotechnica et Mechanica, 2018
Calculation of pullout capacity of anchoring concrete cylindrical block by finite element method is carried out. 3D model of the block assumes its free rotation.
Sternik Krzysztof   +1 more
doaj   +1 more source

Structural Reliability Evaluation for Brazed Joints of Fine Tube Heat Exchanger on an Aero Engine [PDF]

open access: yes한국정밀공학회지, 2018
The worsening environmental pollution has increased the interest in developing eco-friendly technologies. The purpose of this study is to develop an aero-heat exchanger to reduce the emission of environmental pollutants.
Na Hyun Kim   +4 more
doaj   +1 more source

Evaluation of circulating tumor DNA by electropherogram analysis and methylome profiling in high-risk neuroblastomas

open access: yesFrontiers in Oncology, 2023
BackgroundLiquid biopsy has emerged as a promising, non-invasive diagnostic approach in oncology because the analysis of circulating tumor DNA (ctDNA) reflects the precise status of the disease at diagnosis, progression, and response to treatment.
Eva María Trinidad   +14 more
doaj   +1 more source

The Chemical Abundances Of Stars In The Halo (CASH) Project. II. A Sample Of 14 Extremely Metal-Poor Stars [PDF]

open access: yes, 2011
We present a comprehensive abundance analysis of 20 elements for 16 new low-metallicity stars from the Chemical Abundances of Stars in the Halo (CASH) project. The abundances have been derived from both Hobby-Eberly Telescope High Resolution Spectrograph
Beers, Timothy C.   +7 more
core   +2 more sources

Mechanical Properties of Pineapple Leaf Fiber Reinforced Epoxy Infused with Silicon Carbide Micro Particles

open access: yesJournal of Natural Fibers, 2019
Natural fiber composite materials are finding applications in the manufacturing of the nonstructural parts in different areas of aerospace, automobiles…etc.
Rakesh Potluri
doaj   +1 more source

Oxygen Abundances in Nearby FGK Stars and the Galactic Chemical Evolution of the Local Disk and Halo [PDF]

open access: yes, 2013
Atmospheric parameters and oxygen abundances of 825 nearby FGK stars are derived using high-quality spectra and a non-LTE analysis of the 777 nm O I triplet lines. We assign a kinematic probability for the stars to be thin-disk (P1), thick-disk (P2), and
Lambert, D. L.   +2 more
core   +2 more sources

The Absolute Abundance of Iron in the Solar Corona [PDF]

open access: yes, 2000
We present a measurement of the abundance of Fe relative to H in the solar corona using a technique which differs from previous spectroscopic and solar wind measurements.
Arnaud M.   +7 more
core   +3 more sources

O/Fe in metal-poor main sequence and subgiant stars

open access: yes, 2002
A study of the O/Fe ratio in metal-poor main sequence and subgiant stars is presented using the [OI] 6300A line, the OI 7774A triplet, and a selection of weak FeII lines observed on high-resolution spectra acquired with the VLT UVES spectrograph. The [OI]
Asplund, M.   +3 more
core   +1 more source

A physically motivated and empirically calibrated method to measure effective temperature, metallicity, and Ti abundance of M dwarfs [PDF]

open access: yes, 2017
The ability to perform detailed chemical analysis of Sun-like F-, G-, and K-type stars is a powerful tool with many applications including studying the chemical evolution of the Galaxy and constraining planet formation theories.
Allard, France   +5 more
core   +5 more sources

Modeling and Analysis of Dissimilar Laser Welding Using FEM: A Case Study on Inconel 718 and SS321 [PDF]

open access: yesE3S Web of Conferences
This work provides an extensive finite element analysis (FEA) of laser welding of dissimilar metals AISI 321 stainless steel and Inconel 718 to analyze the thermal characteristics and temperature field under transient conditions.
Prasad M. V.   +2 more
doaj   +1 more source

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