Results 91 to 100 of about 70,191 (293)

Advanced Surface Engineering and Passivation Strategies of Quantum Dots for Breaking Efficiency Barrier of Clean Energy Technologies: A Comprehensive Review

Advanced Functional Materials, EarlyView.
This review describes the different surface engineering strategies for quantum dots that addresses the challenges associated with surface defects, highlighting their role in enhancing the performance of solar energy conversion technologies. Abstract Colloidal quantum dots (QDs) have garnered significant attention for their unique potential in clean ...
Kokilavani S., Gurpreet Singh Selopal
wiley   +1 more source

Long-term Evolution of Sco X-1: Implications for the Current Spin Frequency and Ellipticity of the Neutron Star

The Astrophysical Journal
Sco X-1 is the brightest observed extrasolar X-ray source, which is a neutron star (NS) low-mass X-ray binary (LMXB) and is thought to have a strong potential for continuous gravitational waves (CW) detection due to its high accretion rate and relative ...
Abhijnan Kar, Pulkit Ojha, Sudip Bhattacharyya   +2 more
doaj   +1 more source

Intermediate Mass Black Holes in Accreting Binaries: Formation, Evolution and Observational Appearance

, 2004
We study the origin of the ultraluminous X-ray source M82-X1 in the nearby starburst galaxy M82. This X-ray source is of particular interest as it is currently the best candidate intermediate mass black hole; it is associated with a 54mHz quasi periodic ...
Ayal, Baumgardt, Begelman, Brocksopp, Chen, Coppi, de Jager, Dubus, Ebisuzaki, Esin, Evans, Fender, Fender, Fillipenko, Foschini, Gallo, Garcia, Garcia, Gierlinski, Greene, Gürkan, Harlaftis, Hjellming, Homan, Hopman, Irwin, Jasinta Dewi, Kalogera, King, King, King, Kong, Kormendy, Kubota, Körding, Landau, Liu, Maccarone, Maccarone, Madau, Masetti, McClintock, McClintock, McConnell, Meyer-Hofmeister, Meyer-Hofmeister, Miller, Miller, Miller, Miller, Mitsuda, Miyamoto, Miyamoto, Nowak, Nowak, Nowak, Nowak, Orosz, Orosz, Pakull, Peters, Podsiadlowsky, Pols, Pols, Portegies Zwart, Portegies Zwart, Portegies Zwart, Quinlan, Rasio, Rees, Shakura, Shapiro, Shih, Simon F. Portegies Zwart, Smith, Smith, Sobczak, Soberman, Spergel, Strohmayer, Sunyaev, Thorne, Tom Maccarone, Ulmer, van der Klis, Watson, White, Zdziarski, Zdziarski, Zezas, Zezas   +90 more
core   +1 more source

An Ultra‐Robust Memristor Based on Vertically Aligned Nanocomposite with Highly Defective Vertical Channels for Neuromorphic Computing

Advanced Functional Materials, EarlyView.
An ultra‐robust memristor based on SrTiO3‐CeO2 (S‐C) vertically aligned nanocomposite (VAN) achieving exceptional endurance of 1012 switching cycles via interface engineering. Artificial neural networks (ANNs) integrated with S‐C VAN memristors exhibit high training accuracy across multiple datasets.
Zedong Hu, Hongyi Dou, Jeremy B. Gan, Cun Li, Xuanyu Sheng, Juanjuan Lu, Abhijeet Choudhury, Jialong Huang, Yizhi Zhang, Zhongxia Shang, Ye Cao, Xinghang Zhang, Haiyan Wang   +12 more
wiley   +1 more source

Estimating the Spin of MAXI J1348–630 from Intermediate and Soft States Using Insight-HXMT Data

The Astrophysical Journal
We present a broadband spectral analysis of the soft-intermediate and soft states using Insight-HXMT observations of the black hole binary MAXI J1348–630 during its outburst in 2019.
J. Guan, R. C. Ma, L. Tao, A. C. Fabian, J. A. Tomsick, S. N. Zhang, L. Zhang, J. L. Qu, S. Zhang   +8 more
doaj   +1 more source

Direct Evidence of Topological Dirac Fermions in a Low Carrier Density Correlated 5d Oxide

Advanced Functional Materials, EarlyView.
The 5d oxide BiRe2O6 is discovered as a low‐carrier‐density topological semimetal hosting symmetry‐protected Dirac fermions stabilized by nonsymmorphic symmetries. Angle‐resolved photoemission spectroscopy, quantum oscillations, and magnetotransport measurements reveal gapless Dirac cones, quasi‐2D Fermi surfaces, high carrier mobility, and a field ...
Premakumar Yanda, Jorge Cardenas‐Gamboa, Ding Pei, François Bertran, Leila Noohinejad, Snehashish Chatterjee, Changjiang Yi, Iñigo Robredo, Horst Borrmann, Maia G. Vergniory, Chandra Shekhar, Claudia Felser   +11 more
wiley   +1 more source

Quasiperiodic Oscillation Signatures of Disk Restoration after Type-I X-Ray Bursts from 4U 1636−536

The Astrophysical Journal
Type-I thermonuclear bursts (TNBs) from neutron star low-mass X-ray binaries (NS LMXBs) originate on the neutron star’s surface from the unstable burning of the accreted material.
Suchismito Chattopadhyay, Jaiverdhan Chauhan, Ranjeev Misra, Anne Lohfink, Rhaana Starling, Priya Bharali, Soma Mandal   +6 more
doaj   +1 more source

The Distance, Mass, and Radius of the Neutron Star in 4U 1608-52

, 2010
Low mass X-ray binaries that show thermonuclear bursts are ideal sources for constraining the equation of state of neutron star matter. The lack of independent distance measurements for most of these sources, however, prevents a systematic exploration of
Alves, Antonio Cabrera-Lavers, Arnaud, Cohen, Durant, Durant, Feryal Özel, Galloway, Grocholski, Heinke, Ibata, Ibata, Juett, Juett, Lattimer, Madej, Paczynski, Patricia Wroblewski, Penninx, Pietrzyński, Predehl, Skrutskie, Thorsett, Tolga Güver, Ueda, van Paradijs, Wachter, Webb, Wilms, Wroblewski, Özel   +30 more
core   +1 more source

Supraparticles Composed of Graphitic Carbon Nitride Nanoparticles and Silica‐Supported Horseradish Peroxidase as Customizable Hybrid Catalysts for Photo‐Biocatalytic Cascade Reactions in Continuous Flow

Advanced Functional Materials, EarlyView.
Herein presented supraparticles combine the nanoparticulate photocatalyst graphitic carbon nitride with the enzyme horseradish peroxidase, which is immobilized on silica nanoparticles. In an optimized compatibility range, both catalysts operate effectively within the hybrid supraparticles and catalyze a cascade reaction consisting of the photocatalytic
Bettina Herbig, Egzon Cermjani, Doris Hanselmann, Johannes Prieschl, Angelika Schmitt, Michael S. Moritz, Christian Papp, Greta Nölke, Stefano Di Fiore, Christoph Deckers, Thomas H. Rehm, Susanne Wintzheimer   +11 more
wiley   +1 more source

Discovery of a Long Thermonuclear X-Ray Burst from the Ultracompact Binary 4U 1850–087

The Astrophysical Journal
We report the detection of a long X-ray burst from the ultracompact binary 4U 1850–087. The type I X-ray burst was observed on MJD 60171.65 by the Monitor of All-sky X-ray Image and Neutron Star Interior Composition Explorer (NICER). We analyze the NICER
Yongqi Lu, Zhaosheng Li, Wenhui Yu, Yuanyue Pan, Maurizio Falanga   +4 more
doaj   +1 more source