Results 31 to 40 of about 878,932 (247)

A Variable PV Broad Absorption Line and Quasar Outflow Energetics [PDF]

, 2014
Broad absorption lines (BALs) in quasar spectra identify high velocity outflows that might exist in all quasars and could play a major role in feedback to galaxy evolution.
Barlow, Tom A., Capellupo, Daniel M., Hamann, Fred   +2 more
core   +2 more sources

Gastrointestinal Mucormycosis in a two-year-old child: A clinical and radiological enigma

Medical Mycology Case Reports, 2019
Mucormycosis is a rare, fatal angioinvasive infection occurring in immunocompromised individuals. Gastrointestinal mucormycosis is rare variety with high mortality rate.
Mahajan Nidhi, Khanam Sadia, Arti Khatri, Ghosh Arnab, Niyaz Ahmed Khan   +4 more
doaj   +1 more source

Eddington Accretion and QSO Emission Lines at z ~ 2 [PDF]

, 2003
Broad Absorption Line (BAL) QSOs have been suggested to be youthful super-accretors based on their powerful radiatively driven absorbing outflows and often reddened continua. To test this hypothesis, we observed near IR spectra of the H$\beta$ region for
Beverley J. Wills, Done C., Grupe D., Krolik J. H., Michael Juntao Yuan, Pounds K. A.   +5 more
core   +2 more sources

Duplex Stainless Steel Laser‐Surface Textured: Stability in Brine Solution

Advanced Engineering Materials, EarlyView.
Controlled laser‐surface treatment (LST) of duplex DSS2205 steel is performed to increase its stability in brine solution under cyclic electrochemical assays. The superior protection with respect to flat and smooth panels is attributed to the presence of FeCr2O4 as the main protective oxide layer in the LST surface, after corrosion tests. The stability
Mohammad Rezayat, Hamidreza Enshaei, Elaine Armelin, José I. Iribarren, Antonio Mateo, Miguel Morales   +5 more
wiley   +1 more source

Are bilateral idiopathic clubfeet more severe than unilateral feet? A severity and treatment analysis

Journal of Orthopaedic Surgery, 2018
Introduction: Evidences suggest that different subgroups of idiopathic clubfoot exist with differences in severity and treatment outcomes. This study compares the severity and treatment outcomes of unilateral and bilateral clubfoot. Material and methods:
Anil Agarwal, Nargesh Agrawal, Sitanshu Barik, Neeraj Gupta   +3 more
doaj   +1 more source

Laser Metal Deposition of Aluminum Alloys 7075 and 5083 with the Addition of Volatile Alloying Elements through Powder Blending

Advanced Engineering Materials, EarlyView.
This study investigates laser metal deposition of aluminum alloys EN AW‐7075 and EN AW‐5083, using powder blending to compensate zinc and magnesium evaporation. In situ alloying and ex situ alloying with ZnAl12 and AZ91 preserve near‐standard compositions and improve mechanical properties.
Finn Bendixen, Anastasiya Toenjes, Annika Bohlen, Thomas Seefeld   +3 more
wiley   +1 more source

PBF‐LB/M of Ti‐6Al‐4V: High‐Pressure Solution Treatment and Aging for Applications in a Sustainable Aerospace

Advanced Engineering Materials, EarlyView.
Additive manufacturing (AM) allows great geometric freedom for lightweight components. As parts are progressively optimized exploiting potentials in AM leading in smaller material cross sections, high pressure solution treating and aging (STA) treatments show an enormous potential for strongly improving material properties.
Mika León Altmann, Andre Danzig, Freerk Syassen, Rainer Fechte‐Heinen, Anastasiya Toenjes   +4 more
wiley   +1 more source

Dyslipidemia and atherogenic indexes in children with transfusion-dependent thalassemia

Hematology, Transfusion and Cell Therapy
Objective: This study endeavored to assess the lipid profile and atherogenic lipid indexes in children with transfusion-dependent thalassemia (TDT) and to compare them with matched healthy children.
Sanghamitra Ray, Diganta Saikia, Yachika Vashisht, Shikha Sharma, Rajesh Kumar Meena, Manish Kumar   +5 more
doaj   +1 more source

The Viewing Angles of Broad Absorption Line Versus Unabsorbed Quasars

, 2012
It was recently shown that there is a significant difference in the radio spectral index distributions of broad absorption line (BAL) quasars and unabsorbed quasars, with an overabundance of BAL quasars with steeper radio spectra.
Becker, C. De Breuck, DiPompeo, DiPompeo, Doi, Elvis, Ghosh, Gregg, Gregg, Kunert-Bajraszewska, M. A. DiPompeo, M. S. Brotherton, Ogle, Polatidis, Wills, Zhou   +15 more
core   +1 more source

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth, Tomáš Babinský, Jan Lars Riedel, Wen Hao Kan, Aijun Huang, Martin Heilmaier, Ivo Šulák   +6 more
wiley   +1 more source