Results 51 to 60 of about 21,684 (253)

Tailored Sheared Blanks Produced by Incremental ECAP [PDF]

Key Engineering Materials, 2015
Incremental equal channel angular pressing (I-ECAP) is a process used for production of continuous ultrafine grained bars, plates and sheets. Normally the thickness of the processed billet is kept unchanged in consecutive passes to enable repetitive insertion into the same die. This is achieved by controlling the bottom dead centre of the reciprocating
Rosochowski, Andrzej, Olejnik, Lech, Rosochowska, Malgorzata   +2 more
openaire   +2 more sources

Spectral analysis of the He-enriched sdO-star HD 127493

Open Astronomy, 2018
The bright sdO star HD127493 is known to be of mixed H/He composition and excellent archival spectra covering both optical and ultraviolet ranges are available.
Dorsch Matti, Latour Marilyn, Heber Ulrich   +2 more
doaj   +1 more source

Inverse Engineering of Mg Alloys Using Guided Oversampling and Semi‐Supervised Learning

Advanced Intelligent Discovery, EarlyView.
End‐to‐end design of engineering materials such as Mg alloys must include the properties, structure, and post‐synthesis processing methods. However, this is challenging when destructive mechanical testing is needed to annotate unseen data, and the processing methods for hypothetical alloys are unknown.
Amanda S. Barnard
wiley   +1 more source

EVALUASI PERLAKUAN EQUAL-CHANNEL ANGULAR PRESSING (ECAP) DENGAN RUTE Bc PADA BATANG TITANIUM (Ti-ROD) DENGAN ANALISIS DIFRAKSI SINAR-X

Rekayasa Mesin, 2022
In this study, commercial titanium rod was treated by equal-channel angular pressing (ECAP) with Bc route and two passes. This treatment was then evaluated by means of x-ray diffraction (XRD) analytical method.
Ibrahim Purawiardi, I Nyoman Gede Putrayasa Astawa   +1 more
doaj   +1 more source

Determination of the parameters of semiconducting CdF2:In with Schottky barriers from radio-frequency measurements [PDF]

, 2001
Physical properties of semiconducting CdF_2 crystals doped with In are determined from measurements of the radio-frequency response of a sample with Schottky barriers at frequencies 10 - 10^6 Hz.
A. A. Volkov, A. I. Ritus, A. I. Ryskin, A. Loidl, A. S. Shcheulin, A. Seeger, A. Suchocki, A. V. Pronin, A.I. Ryskin, A.I. Ryskin, A.R. Long, A.S. Shcheulin, A.S. Shcheulin, C.H. Park, D.J. Chadi, I. Kunze, J. Sichelschmidt, J.D. Axe, J.M. Langer, J.M. Langer, P. Lunkenheimer, P. Lunkenheimer, R. Böhmer, R.P. Khosla, R.P. Khosla, S.A. Kazanskii, S.A. Kazanskii, S.R. Elliott, Tineke Thio   +28 more
core   +1 more source

Advancing Severe Plastic Deformation for Tubular Samples: Systematic Review and Machine Learning Optimization

MetalMat, EarlyView.
This review highlights recent advancements in Severe Plastic Deformation (SPD) techniques tailored for tubular samples. The mechanisms of processing are critically discussed with emphasis on microstructural control and the governing process parameters that enable refinement to ultrafine‐ and nano‐grained structures. Comparative insights into equivalent
Eman M. Zayed, Abdulrahman I. Alateyah, Waleed H. El‐Garaihy, Mahmoud Shaban, Majed Alinizzi, Nahed A. El‐Mahallawy   +5 more
wiley   +1 more source

Spectroscopy of hot subdwarf binaries

Open Astronomy, 2018
We present a status report of our spectroscopic analysis of subdwarf binaries consisting of a subdwarf and a F/G/K-type main-sequence companion. These systems selected from SDSS photometry show significant excess in the (infra-)red which can not be ...
Kreuzer Simon, Irrgang Andreas, Heber Ulrich   +2 more
doaj   +1 more source

SIMULTANEOUS FITS IN ISIS ON THE EXAMPLE OF GRO J1008–57

Acta Polytechnica, 2015
Parallel computing and steadily increasing computation speed have led to a new tool for analyzing multiple datasets and datatypes: fitting several datasets simultaneously.
M. Kühnel, S. Müller, I. Kreykenbohm Kreykenbohm, F.-W. Schwarm, C. Grossberger, B. T. Dauser, M. A. Nowak, K. Pottschmidt, C. Ferrigno, R. E. Rothschild, D. Klochkov, R. Staubert, J. Wilms   +12 more
doaj   +1 more source

The effect of compliance assistance on pollution discharges and violations of environmental regulations

Journal of Policy Analysis and Management, EarlyView.
Abstract Researchers and policymakers assert competing behavioral models of polluters. One model portrays polluters as best approximated by the perfectly informed, rational actor from economics textbooks. Another model portrays polluters, particularly small and medium facilities, as imperfectly informed, cognitively bounded, pro‐social actors.
Paul J. Ferraro, Jay P. Shimshack
wiley   +1 more source

DEVELOPMENT OF MICROSTRUCTURE, MECHANICAL AND WEAR CHARACTERISTICS OF THE BRASS ALLOY PROCESSED BY ECAP

Mağallaẗ Al-kūfaẗ Al-handasiyyaẗ
In the present study, the microstructure, mechanical and wear characteristics of commercial Cu-30Zn brass alloy were developed by an equal channel-angular process (ECAP) using a particular die in constant dimensions.
Mohsin T. Mohammed, Hussein N. Radhia, Alaa M.H. Aljassani   +2 more
doaj   +1 more source