Showing 1 - 20 results of 68 for search 'Order of the Three Stars', query time: 0.11s Refine Results
  1. 1

    Revisiting the 3α reaction rates in helium burning stars by T. Depastas, S.T. Sun, H.B. He, H. Zheng, A. Bonasera

    Published 2025-01-01
    “…Helium burning is one of the most fundamental steps of stellar nucleosynthesis, as it describes the formation of life-determining element of carbon, while it plays a key role in the evolution of Red Giant, accreting White Dwarfs and Neutron Stars. In this work we develop a generalized statistical theory for the 3α reaction, which is based on the use of the Imaginary Time Method, along with the semi-classical Hybrid α-Clustering (HαC) and Neck Model (NM) frameworks. …”
    Get full text
    Article
  2. 2
  3. 3

    Design of Optical Lens Assembly Method Based on Star Point Bonding and Surface Shape Accuracy by Qiuhan Ma, Xiaozeng Xie, Chunlei Yang, Tianshuo Zhang, Chuncheng Lang, Bo Tang

    Published 2025-01-01
    “…The study adopts the three-point support principle to bond optical lenses, thereby optimizing the assembly process of optical lens components. …”
    Get full text
    Article
  4. 4

    Tidally Distorted Stars Are Triaxial Pulsators by Jim Fuller, Saul Rappaport, Rahul Jayaraman, Don Kurtz, Gerald Handler

    Published 2025-01-01
    “…For tidally coupled dipole pressure modes, the tidal coupling dominates over the Coriolis force and the resulting pulsations are “triaxial,” with each of the three modes in a multiplet “tidally tilted,” to be aligned with one of the three principal axes of the star. …”
    Get full text
    Article
  5. 5
  6. 6

    Different‎ Magnetic Field ‎Distributions‎ in Deformed Neutron Stars‎ by Mina Zamani, Mohsen Bigdeli

    Published 2019-04-01
    “…‎In this work, we review the formalism which would allow us to model magnetically deformed neutron stars. We study the effect of different magnetic field configurations on the equation of state (EoS) and ‎the ‎structure of such stars. ‎…”
    Get full text
    Article
  7. 7
  8. 8

    Joint beamforming optimization algorithm for secure cognitive radio based on STARS by Chenchi WEN, Jiakuo ZUO, Nan BAO, Pengfei ZHAO

    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.…”
    Get full text
    Article
  9. 9
  10. 10
  11. 11

    A Dynamical Stability Study of Triple-Star Systems Using Physical and Geometrical Parameters by Reza Pazhouhesh, Hasan Hamedi Nasab, Kazem Yoosefi Roobiat

    Published 2021-03-01
    “…The dynamical stability of 141 triple-star systems is investigated. These systems are selected from the updated catalog of multiple stars systems (i.e., the MSC catalog). …”
    Get full text
    Article
  12. 12

    Are Wolf-Rayet Stars Able to Pollute the Interstellar Medium of Galaxies? Results from Integral Field Spectroscopy by Enrique Pérez-Montero, Carolina Kehrig, Jarle Brinchmann, José M. Vílchez, Daniel Kunth, Florence Durret

    Published 2013-01-01
    “…In contrast, we found an overabundance of N/O in spatial scales of the order of hundreds of pc associated with or close to the positions of the WR stars in 4 out of the 6 galaxies. …”
    Get full text
    Article
  13. 13
  14. 14
  15. 15

    Global and Local Infall in the ASHES Sample (GLASHES). I. Pilot Study in G337.541 by Kaho Morii, Patricio Sanhueza, Timea Csengeri, Fumitaka Nakamura, Sylvain Bontemps, Guido Garay, Qizhou Zhang

    Published 2025-01-01
    “…We estimate infall velocities from intermediate and low-mass cores to be 0.28–1.45 km s ^−1 , and infall rates to be on the order of 10 ^−4 –10 ^−3 M _⊙ yr ^−1 , both are higher than those measured in low-mass star-forming regions by more than a factor of 5 and an order of magnitude, respectively. …”
    Get full text
    Article
  16. 16

    Extraction and Characterisation of African Star Apple (Chrysophyllum albidum) Seed Oil and the Adsorptive Properties of the Fruit Shell in Ghana by Michael A. Anang, Michael Oteng-Peprah, Kwasi Opoku-Boadu

    Published 2019-01-01
    “…The kinetics of the adsorption favoured a pseudo-first-order reaction pathway for CaCl2 with R2 of 0.941 while ZnCl2 and MgCl2 favoured a pseudo-second-order reaction pathway with R2 of 0.914 and 0.973, respectively.…”
    Get full text
    Article
  17. 17
  18. 18

    Analysis of the impact of the quality of service to the elderly on their loyalty through a Memorable experience and satisfaction among the elderly in 5-star hotels in Mashhad. by tina ezazi, vajihe hoshyar

    Published 2024-06-01
    “…The statistical population of the research is all seniors over 70 years of age who refer to 5-star hotels in Mashhad and have used that hotel at least 3 times, in uncertain volume. …”
    Get full text
    Article
  19. 19
  20. 20

    A Simplified Model for Investigating the Magnetic Field Morphology of a Massive Clump in an Infrared Dark Cloud by Abdolreza Sharifi, Mohsen Nejad-Asghar

    Published 2022-10-01
    “…To address this investigation, we examine three specific clumps - MM1, MM2, and MM3 - within G34. …”
    Get full text
    Article