云南高校图书馆联盟文献共享服务平台- QUASAR

QUASAR: 作品数：75被引量：56H指数：4; 导出分析报告; 相关领域：天文地球更多>>; 相关作者：喻钧江林华王宏志刘苓苓李兵兵更多>>; 相关机构：北京大学西安工业学院国家天文台独特照明系统有限公司更多>>; 相关期刊：《肿瘤预防与治疗》《质量与认证》《医疗卫生装备》《Science China Mathematics》更多>>; 相关基金：国家自然科学基金国家重点基础研究发展计划广西壮族自治区自然科学基金上海市自然科学基金更多>>

一类非凸Bregman梯度法的线性收敛研究: 《西华师范大学学报（自然科学版）》2025年第1期30-35,共6页李蝶郭科; 国家自然科学基金项目(11801455,11971238);四川省自然科学基金杰出青年科学基金项目(2023NSFSC1922)。; 梯度下降算法是一类求解无约束优化问题的重要方法,其研究中光滑性的假设具有重要作用。Bregman梯度下降算法是对梯度下降算法的一种推广,本质上可以看作将经典的光滑性削弱成相对光滑性时自然产生的。文章研究了Bregman梯度下降算法求...; 关键词：相对光滑强quasar-凸相对强quasar-凸 Bregman梯度下降算法线性收敛率

The transition from galaxy-wide gas inflow to outflow in quasar host galaxies: 《Science China(Physics,Mechanics & Astronomy)》2024年第12期183-196,共14页Zhicheng He Zhifu Chen Guilin Liu Tinggui Wang Luis CHo Junxian Wang Weihao Bian Zheng Cai Guobin Mou Qiusheng Gu Zhiwen Wang; supported by the National Natural Science Foundation of China (Grant Nos.12222304,12192220,and 12192221);supported by the Guangxi Natural Science Foundation (Grant No.2024GXNSFDA010069);the National Natural Science Foundation of China (Grant No.12073007);the Scientific Research Project of Guangxi University for Nationalities (Grant No.2018KJQD01);the research grants from the China Manned Space Project (Grant Nos.CMSCSST-2021-A06,and CMSCSST-2021-A07);the National Natural Science Foundation of China (Grant No.11421303);the Fundamental Research Funds for the Central Universities (Grant No.WK3440000005);the K.C.Wong Education Foundation;supported by the National Science Foundation of China (Grant Nos.11721303,11991052,12011540375,and 12233001);the National Key R&D Program of China (Grant No.2022YFF0503401);the China Manned Space Project (Grant Nos.CMS-CSST-2021-A04,and CMS-CSST-2021-A06);supported by the National Science Foundation of China (Grant No.12033006);provided by the Alfred P.Sloan Foundation;the U.S.Department of Energy Office of Science,and the Participating Institutions;support and resources from the Center for High Performance Computing at the University of Utah。; Galactic-scale outflows driven by active galactic nuclei(AGNs) represent a commonly invoked feedback mechanism within galaxy evolution models.However,the interactions among interstellar gas on galactic scales,the prop...; 关键词：active galactic nuclei QUASAR galaxy winds galaxy evolution FEEDBACK

Quasar AolP网络在播控系统中的应用: 《辽宁广播电视技术》2024年第1期33-34,共2页王东; 本文介绍我台广播直播间使用Telos Quasar直播系统。DSP核心及AoIP传输都基于服务器级的硬件平台,采用分离式设计和成熟的主备允余IP网络架构,确保高性能和高质量音频播出。; 关键词：Quasar调音台 AolP网络 xNode机箱

Formation Process and Essential Characteristics of Quasars: 《Journal of Physical Science and Application》2024年第1期1-15,共15页Cuixiang Zhong; Since the discovery of quasars in the 1960s,people have been curious and confused about quasars’characteristics such as high brightness,long distance,large redshift,high energy and wide spectral lines.Until the mid-1...; 关键词：Black hole QUASAR active galactic nucleus formation process essential characteristics

QUASAR MRID 3D失真模体在高场强磁共振模拟定位机失真度检测中的应用价值: 《医疗卫生装备》2023年第7期58-62,共5页巩汉顺李金峰曲宝林臧晓梁宇鹏王树鑫戴相昆徐寿平; 目的:对QUASAR MRID 3D失真模体在高场强磁共振模拟定位机失真度检测中的应用价值进行深入探讨。方法:在GE公司MR 750W高场强磁共振模拟定位机上分别采用快速梯度回波(gradient recalled echo,GRE)序列及其反向梯度序列获取大直径QUASAR...; 关键词：磁共振成像磁共振模拟定位机失真模体图像失真主磁场失真

新型广播播控五层安全架构体系: 《辽宁广播电视技术》2023年第2期24-25,共2页王东; 本文介绍的是一套符合我台广播播控系统运行的五层安全架构体系。体系涉及信号的生产、调度、发布等所有的播出环节,具有设计思路新颖,可操作性强等优点。; 关键词：QUASAR调音台 AoIP网络 PathFinder服务器 LiveWire+协议 NEXUS机箱

A Catalog of Quasar Candidates Identified by Astrometric and Mid-infrared Methods in Gaia EDR3: 《Research in Astronomy and Astrophysics》2023年第2期82-98,共17页Qiqi Wu Shilong Liao Zhaoxiang Qi Hao Luo Zhenghong Tang Zihuang Cao; supported by the Youth Innovation Promotion Association CAS with Certificate Number 2022259;the grants from the Natural Science Foundation of Shanghai through grant 21ZR1474100;the National Natural Science Foundation of China(NSFC)through grants 12173069,and 11703065;the science research grants from the China Manned Space Project with NO.CMS-CSST-2021-A12 and NO.CMS-CSST-2021-B10。; Quasars are very important in materializing the reference frame.The excess emission of active galactic nuclei(AGNs) in the mid-infrared band can be used to identify quasar candidates.As extremely distant and point-lik...; 关键词：(galaxies:)quasars general-parallaxes-catalogs-astrometry

The Quasar Candidate Catalogs of DESI Legacy Imaging Survey Data Release 9: 《Research in Astronomy and Astrophysics》2022年第9期267-277,共11页Zizhao He Nan Li; science research grants from the China Manned Space Project with No.CMS-CSST-2021-A01。; Quasars can be used to measure baryon acoustic oscillations at high redshift, which are considered as direct tracers of the most distant large-scale structures in the universe. It is fundamental to select quasars from...; 关键词：galaxies:quasars:general catalogs methods:statistical

The likely counterpart to γ-ray excess from the northwest region of Arp 220: 《Research in Astronomy and Astrophysics》2021年第7期171-176,共6页Yun-Chuan Xiang Jun-Hao Deng Ze-Jun Jiang; the support for this work from the National Key R&D Program of China under Grant No.2018YFA0404204;the National Natural Science Foundation of China(NSFC U1931113 and U1738211);the Foundations of Yunnan Province(2018IC059 and 2018FY001(-003));the scientific research fund of Yunnan Education Department(2020Y0039)。; The unknown γ-ray excess in the northwest region of Arp 220 was revisited by analyzing~11.8 years of the Fermi Large Area Telescope(Fermi-LAT) data in this study.We found that its photon flux was approximately three ...; 关键词：flat spectrum radio quasar:individual(CRATES J153246+234400) QUASARS γ-ray emission

Anomalies in the Counts of Low Redshift Quasars: 《Journal of High Energy Physics, Gravitation and Cosmology》2021年第2期531-550,共20页D. P. Youll; The commonly held view by astronomers and cosmologists is that redshift indicates distance for both galaxies and quasars. However, data from over 750,000 quasars, and specifically about 9500 with high accuracy measure...; 关键词：QUASAR REDSHIFT SDSS

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