Results 31 to 40 of about 1,341,464 (302)

An optimum design on rollers containing the groove with changeable inner diameter based on response surface methodology

open access: yesAdvances in Mechanical Engineering, 2016
In order to realize the precision plastic forming of the revolving body component with changeable wall thickness, a kind of roller containing grooves with changeable inner diameter is put forward, as the forming mould of the technology of rolling ...
Xi Zhao, Zhimin Zhang, Yong Xue
doaj   +1 more source

Electrospray Ionization Mass Spectrometric Analysis of Highly Reactive Glycosyl Halides

open access: yesMolecules, 2012
Highly reactive glycosyl chlorides and bromides have been analysed by a routine mass spectrometric method using electrospray ionization and lithium salt adduct-forming agents in anhydrous acetonitrile solution, providing salient lithiated molecular ions [
Lajos Kovács   +6 more
doaj   +1 more source

Stellar Populations in the Phoenix Dwarf (dIrr/dSph) Galaxy as Observed by HST/WFPC2 [PDF]

open access: yes, 2000
We present HST/WFPC2 photometry of the central regions of the Phoenix dwarf. Accurate photometry allows us to: 1) confirm the existence of the horizontal branch previously detected by ground-based observations, and use it to determine a distance to ...
Carl Grillmair   +7 more
core   +2 more sources

Study on Spinning Forming Method of Cylindrical Parts with Quadrilateral Fillet Section

open access: yesJixie chuandong, 2021
Based on the motion principle of guide bar mechanism,a spinning forming method of cylindrical parts with quadrilateral fillet section is proposed. Based on this principle and using the transformation method of high pair and low generation,the accurate ...
Yuliang Liu   +3 more
doaj  

Morphology and Size Differences between Local & High Redshift Luminous Infrared Galaxies

open access: yes, 2010
We show that the star-forming regions in high-redshift luminous and ultraluminous infrared galaxies (LIRGs and ULIRGs) and submillimeter galaxies (SMGs) have similar physical scales to those in local normal star-forming galaxies.
Alonso-Herrero   +45 more
core   +1 more source

The Herschel view of the dominant mode of galaxy growth from z=4 to the present day [PDF]

open access: yes, 2015
We present an analysis of the deepest Herschel images in four major extragalactic fields GOODS-North, GOODS-South, UDS and COSMOS obtained within the GOODS-Herschel and CANDELS-Herschel key programs.
Aussel, Hervé   +22 more
core   +7 more sources

Rapid precision casting for complex thin-walled aluminum alloy parts [PDF]

open access: yesChina Foundry, 2004
Based on Vacuum Differential Pressure Casting (VDPC) precision forming technology and the Selective Laser Sintering (SLS) Rapid Prototyping (RP) technology, a rapid manufacturing method called Rapid Precision Casting (RPC) process from computer three ...
Xuanpu DONG, Naiyu HUANG, Zitian FAN
doaj  

Integrated Simulation Process Chain: From 3D Roll Forming Design to Crash Analysis [PDF]

open access: yesMATEC Web of Conferences
This paper presents an innovative numerical simulation process chain for sheet metal profiles, addressing the full workflow from tooling design and 3D roll forming process simulation to crash simulation.
Sedlmaier Albert   +4 more
doaj   +1 more source

The Hierarchical Origins of Observed Galaxy Morphology [PDF]

open access: yes, 2013
Galaxies grow primarily via accretion-driven star formation in discs and merger-driven growth of bulges. These processes are implicit in semi-analytical models of galaxy formation, with bulge growth in particular relating directly to the hierarchical ...
De Lucia, Gabriella   +4 more
core   +1 more source

Survival Outcomes and Complications Among Canadian Children With Retinoblastoma: A Population‐Based Report From CYP‐C

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Purpose Retinoblastoma (RB) is the most common pediatric ocular cancer, yet population‐based data on survival and risk factors remain limited. This study aimed to describe survival in a large national RB cohort and identify predictors of death and complications.
Samuel Sassine   +14 more
wiley   +1 more source

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