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81
Identifying Hierarchically Triple Star Systems with Gaia DR3 and LAMOST
Published 2025-01-01Subjects: Get full text
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82
Ultraviolet Photometry and Habitable Zones of over 2700 Planet-hosting Stars
Published 2025-01-01“…The Sun’s low FUV emission and moderate NUV emission highlight its uniqueness among (solar-like) stars.…”
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83
The S4G-WISE View of Global Star Formation in the Nearby Universe
Published 2025-01-01Subjects: “…Star formation…”
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84
Magnetized Protoplanetary Disks around Young Stars in the Presence of Realistic Cooling
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85
Alignment Parameters: Quantifying Dense Core Alignment in Star-forming Regions
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86
Joint beamforming optimization algorithm for secure cognitive radio based on STARS
Published 2024-03-01“…Secure cognitive radio (SCR) system based on reconfigurable intelligent surface (RIS) assumes that secondary user (SU) and primary user (PU) locate on the same side of the base station (BS), which can only cover part of the communication area and limits the deployment flexibility and effectiveness of the RIS.In order to solve the above problem, a new SCR system based on simultaneously transmitting and reflecting surface (STARS) was proposed.In the system, STARS could achieve full coverage of communication area, improve the received signal strength of the SU with the transmission beamforming vector and reduce the interference of the SU to the PU with the reflection beamforming vector, which provided new optimization degree of freedom (DoF) for the design of the SCR system.Considering secrecy rate constraint of the SU, interference power constraint (IPC) of the PU and transmission/reflection parameters constraint of the STARS, BS active beamforming vector and STARS transmission/reflection beamforming vectors were jointly optimized to minimize the BS’s transmit power from the perspective of reducing the total power consumption of the system.The minimization problem is a variable coupling non-convex problem, which is difficult to tackle directly.An alternating optimization (AO) algorithm based on difference-of-convex relaxation (DCR) method and sequential rank-one constraint relaxation (SROCR) method was proposed to jointly design the BS active beamforming vector and STARS transmission/reflection beamforming vectors.Simulation results show that the proposed algorithm has good convergence performance and effectively reduces the interference of SU on PU.Compared with the traditional RIS, random phase, maximum-ratio transmission (MRT) and equal energy splitting (Equal ES) schemes, the BS transmitting power is reduced by 8.3%, 15.4%, 5.9% and 5.3%, respectively.…”
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87
GR-Athena++: General-relativistic Magnetohydrodynamics Simulations of Neutron Star Spacetimes
Published 2025-01-01Subjects: “…Compact binary stars…”
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88
CC-MRSJ:Cache Conscious Star Join Algorithm on Hadoop Platform
Published 2013-10-01Subjects: “…star join…”
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89
Orbits of Six Triple Systems
Published 2025-01-01Subjects: “…Visual binary stars…”
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90
The Secondary Component of the Extremely Low Mass Ratio Massive Binary HD 165246 Revealed by GHOST
Published 2025-01-01Subjects: “…Massive stars…”
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91
Influence of Effective Nucleon Mass on Equation of State for Supernova Simulations and Neutron Stars
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92
The significance of the digitalization and online communication tools used by five-star restaurants in Bulgaria
Published 2024-11-01“…The study focuses on five-star restaurant websites and outlines specific insights and challenges related to digital experiences. …”
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93
MAGICS. II. Seed Black Holes Stripped of Their Surrounding Stars Do Not Sink
Published 2025-01-01“…Besides the unstripped stars from the original host galaxy, we find that newly formed stars bound to the MBH significantly contribute to its sinking. …”
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94
Constraining the equation of state in neutron-star cores via the long-ringdown signal
Published 2025-02-01“…Abstract Multimessenger signals from binary neutron star (BNS) mergers are promising tools to infer the properties of nuclear matter at densities inaccessible to laboratory experiments. …”
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95
A Study of Hexagon Star Network with Vertex-Edge-Based Topological Descriptors
Published 2021-01-01“…Amongst the most famous network topology designs are star network, mesh network, hexagonal network, honeycomb network, etc. …”
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96
The Prevalence of Star-forming Clumps as a Function of Environmental Overdensity in Local Galaxies
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97
Observations of the Ultraviolet-bright Star III-60 in the Globular Cluster NGC 6723
Published 2025-01-01“…The star's effective temperature and luminosity place it on the evolutionary tracks of stars evolving from the blue horizontal branch, but its high mass (∼1.2 M _⊙ ) indicates that it is the product of a stellar merger. …”
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98
Graphene Oxide-Gold Star Construct on Triangular Electrodes for Alzheimer’s Disease Identification
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99
Production of Light Nuclei in Au+Au Collisions with the STAR BES-II Program
Published 2025-01-01“…The significantly larger datasets from STAR BES-II compared to BES-I, combined with enhanced detector capabilities, allow for more precise measurements. …”
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100
‘Strawberry Star’ – A Spotted, Fancy-Leaved Caladium for Use in Containers and Landscapes
Published 2012-08-01“…'Strawberry Star' is a fancy-leaved variety with a primarily white leaf face and attractive red spots. …”
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