Results 31 to 40 of about 511,855 (348)

Detection of Powerful Mid-IR H_2 Emission in the Bridge between the Taffy Galaxies [PDF]

, 2012
We report the detection of strong, resolved emission from warm H_2 in the Taffy galaxies and bridge. Relative to the continuum and faint polyclic aromatic hydrocarbon (PAH) emission, the H_2 emission is the strongest in the connecting bridge, approaching
Allen, Appleton, B. W. Peterson, Beirão, C. Struck, Cluver, Dale, Dalgarno, Donahue, Egami, F. Boulanger, Fazio, G. Helou, Gao, Guillard, Habing, Helou, Higdon, Houck, Jarrett, Le Petit, Leroy, M. E. Cluver, Mac Low, Ogle, Ogle, Oka, P. Guillard, P. N. Appleton, P. Ogle, Rieke, Roussel, Sanders, Sivandandam, Smith, Smith, Struck, Sánchez, T. H. Jarrett, Tielens, Werner, Wilgenbus, Yusef-Zadeh, Zhu   +43 more
core   +2 more sources

Warm Electrohydraulic Forming: A Novel High Speed Forming Process

Procedia Engineering, 2017
Abstract Electrohydraulic forming (EHF) is one of the high speed forming processes for sheet metals which has considerable effect on formability improvement. In this process, the electrical energy stored in a bank of capacitors, discharges between a pair of electrodes submerged in a fluid and forms the sheet metal.
Majid Zia, Ali Fazli, Mahdi Soltanpour
openaire   +1 more source

Urban form, urban warming and time

, 2022
Eine Schlüsselrolle für das thermische Verhalten und die Ausbildung von städtischen Wärmeinseln der Städte besitzt die Stadtstruktur, die raum-zeitliche, zwei- und dreidimensionale Anordnung der materiellen Bestandteile von Städten (\(\textit {urban form}\)).
openaire   +2 more sources

Effect of Process Variables on Interface Friction Characteristics in Strip Drawing of AA 5182 Alloy and Its Formability in Warm Deep Drawing

Journal of Manufacturing and Materials Processing, 2023
Warm forming is widely used to enhance the formability of aluminum alloy sheets. In warm deep drawing, the process variables significantly affect frictional characteristics at the tool–blank interface.
Archit Shrivastava, Ravi Kumar Digavalli
doaj   +1 more source

Research on Al-alloy sheet forming formability during warm/hot sheet hydroforming based on elliptical warm bulging test

AIP Advances, 2018
An elliptical warm/hot sheet bulging test under different temperatures and pressure rates was carried out to predict Al-alloy sheet forming limit during warm/hot sheet hydroforming.
Gaoshen Cai, Chuanyu Wu, Zepu Gao, Lihui Lang, Sergei Alexandrov   +4 more
doaj   +1 more source

Thermo-micro-mechanical simulation of bulk metal forming processes

, 2019
The newly proposed microstructural constitutive model for polycrystal viscoplasticity in cold and warm regimes (Motaman and Prahl, 2019), is implemented as a microstructural solver via user-defined material subroutine in a finite element (FE) software ...
Haase, Christian, Motaman, S. Amir H., Prahl, Ulrich, Schacht, Konstantin   +3 more
core   +1 more source

Stars were born in significantly denser regions in the early Universe [PDF]

, 2014
The density of the warm ionized gas in high-redshift galaxies is known to be higher than what is typical in local galaxies on similar scales. At the same time, the mean global properties of the high- and low-redshift galaxies are quite different.
Brinchmann, Jarle, Rahmati, Alireza, Shirazi, Maryam   +2 more
core   +1 more source

A Microstructure-Integrated Ductile Fracture Criterion and FE-Based Framework for Predicting Warm Formability of AA7075 Sheets

Metals
Variations in the warm formability of AA7075 sheets are primarily attributed to differences in precipitate morphology resulting from distinct thermal histories.
Wan-Ling Chen, Rong-Shean Lee
doaj   +1 more source

Investigation of Micro-Bending of Sheet Metal Laminates by Laser-Driven Soft Punch in Warm Conditions

Micromachines, 2017
Microscale laser dynamic flexible forming (µLDFF) is a novel ultrahigh strain rate manufacturing technology with high efficiency and low cost. However, the µLDFF is just confined to single-layer foil at present. In this work, sheet metal laminates (Cu/Ni)
Huixia Liu, Guoce Zhang, Zongbao Shen, Wenhao Zhang, Xiao Wang   +4 more
doaj   +1 more source

Warm forming of 7075 aluminum alloys

Procedia Engineering, 2017
Abstract The paper presents forming results of the drawpiece made of T6 temper 7075 aluminum alloy. The development of new, state-of-the-art forming methods by scientific and research centers is mainly driven by increasing demand for lightweight construction materials characterized by superior mechanical properties. As an example, new forming methods
Sławomir Polak, Paweł Kaczyński, Zbigniew Gronostajski, Karol Jaskiewicz, Jakub Krawczyk, Mateusz Skwarski, Maciej Zwierzchowski, Władysław Chorzępa   +7 more
openaire   +1 more source