Results 151 to 160 of about 14,837 (310)

AT2018fyk: Candidate Tidal Disruption Event by a (Super)Massive Black Hole Binary

The Astrophysical Journal
The tidal disruption event (TDE) AT2018fyk has unusual X-ray, UV, and optical light curves that decay over the first ∼600 days, rebrighten, and decay again around 1200 days.
S. Wen, P. G. Jonker, A. J. Levan, D. Li, N. C. Stone, A. I. Zabludoff, Z. Cao, T. Wevers, D. R. Pasham, C. Lewin, E. Kara   +10 more
doaj   +1 more source

HWTS 50 Tool Steel Tailored for Laser Powder Bed Fusion: Sliding Wear of Bare Surfaces and Nitriding Response in Comparison with 18Ni300 and AISI H13

steel research international, EarlyView.
This work investigates the wear resistance and nitriding behavior of PBF‐LB/M‐processed Osprey HWTS 50, a lean hot work tool steel. Three heat treatment conditions are compared to conventional wrought H13, H11, and PBF‐LB/M 18Ni300. The study highlights HWTS 50's enhanced nitrogen diffusion, deeper nitriding hardness depth, and comparable or improved ...
Jonathan Hann, Giorgia Lupi, Sylvain Dossin, Riccardo Casati, Mandanà Moshiri, Arne Röttger, Faraz Deirmina   +6 more
wiley   +1 more source

Near-infrared image of the debris disk around HD 15115 [PDF]

, 2015
S. Sai, Yoichi Itoh, Misato Fukagawa, Hiroshi Shibai, T. Sumi   +4 more
openalex   +1 more source

HERSCHEL-RESOLVED OUTER BELTS OF TWO-BELT DEBRIS DISKS AROUND A-TYPE STARS: HD 70313, HD 71722, HD 159492, AND F-TYPE: HD 104860 [PDF]

, 2013
Farisa Y. Morales, G. Bryden, M. W. Werner, Karl Stapelfeldt   +3 more
openalex   +1 more source

Synthesis of Sustainable Chromium‐Based Nanoparticles With Fluorescence Tunable Ability for Biosensing of Tumor‐Derived Exosomes and Molecular Information Protection

SusMat, EarlyView.
The study uses rapidly prepared Cr NPs with controllable fluorescence, enabling co‐regulation of quenching and enhancement for dyes and DNA of differing structures. By assembling a CD63‐specific aptamer with Cr NPs, it creates a quantitative readout for CD63‐positive TDEs.
Meng Yao Wu, Yu Qing Tian, Jiao Yang Lu, Tian Tian Fu, Hou Cheng Liang, Wei Tao Huang   +5 more
wiley   +1 more source

Variations on Debris Disks. IV. An Improved Analytical Model for Collisional Cascades [PDF]

, 2017
Scott J. Kenyon, Benjamin C. Bromley
openalex   +1 more source

Bridging the Late Antique Gap in Northwest Arabia: New Archaeological Evidence on the Occupation of Wādī al‐Qurā (al‐ʿUlā [AlUla], Saudi Arabia) Between the Third and Seventh Centuries CE

Arabian Archaeology and Epigraphy, EarlyView.
ABSTRACT In 2019, the Dadan Archaeological Project (CNRS/RCU/AFALULA) identified a Late Antique village 1 km south of ancient Dadan in the al‐ʿUlā valley (northwest Saudi Arabia). Three excavation seasons at this site (2021–2023) have uncovered a massive building constructed in the late third or early fourth cent.
Jérôme Rohmer, Abdulrahman Alsuhaibani, Charlène Bouchaud, Elora Chambraud, Vladimir Dabrowski, Hatem Djerbi, Fabien Lesguer, Hervé Monchot, Paul Picavet, Louise Purdue, Bertrand Riba, Shadi Shabo   +11 more
wiley   +1 more source

Asteroid collisions as origin of debris disks: Asteroid shape reconstruction from BNAO Rozhen photometry [PDF]

, 2019
G. Apostolovska, Elena Vchkova Bebekovska, A. Kostov, Z. Donchev   +3 more
openalex   +1 more source

Cyotoxicity of Etidronate as an Endodontic Chelator Against Periodontal Ligament Fibroblast

Australian Endodontic Journal, EarlyView.
ABSTRACT Etidronic acid (HEBP) causes fewer alterations in dentine and can be used mixed with sodium hypochlorite during root canal preparation. This study investigated the cytotoxicity effects of the HEDP and EDTA on human periodontal ligament fibroblast cells. Primary culture was established from human periodontal ligament tissue of one donor and was
Bruno Vila Nova de Almeida, Patrícia de Almeida Rodrigues, Geovanni Pereira Mitre, Maria Sueli da Silva Kataoka, João de Jesus Viana Pinheiro, Talita Tartari, Oscar Faciola Pessoa   +6 more
wiley   +1 more source

HERSCHEL OBSERVATIONS AND UPDATED SPECTRAL ENERGY DISTRIBUTIONS OF FIVE SUNLIKE STARS WITH DEBRIS DISKS [PDF]

, 2016
Sarah E. Dodson-Robinson, Kate Y. L. Su, Geoff Bryden, Paul Harvey, Joel D. Green   +4 more
openalex   +1 more source