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浏览/检索结果: 共47条，第1-10条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序作者升序作者降序 3 Development of code IMPC-MC1.0 by implementing the function for 4 proton transport simulation in OpenMC 期刊论文  OAI收割 ANNALS OF NUCLEAR ENERGY, 2022, 卷号: 166, 页码: 11 作者:  Zhao, Zelong;  Yang, Yongwei;  Gao, Qingyu;  Fang, Peng;  Wu, Xiang   |  收藏  |  浏览/下载：81/0  |  提交时间：2021/12/08 Accelerator-driven sub-critical system  OpenMC  Proton-neutron coupled transport  Spallation reaction model  Monte Carlo method   基于iGMAS的亚纳秒级实时时间服务系统设计与实现 期刊论文  OAI收割 时间频率学报, 2022, 卷号: 45, 期号: 4, 页码: 262 作者:  武美芳;  董孝松   |  收藏  |  浏览/下载：18/0  |  提交时间：2023/12/13 international GNSS Monitoring and Assessment System(iGMAS)  sub-nanosecond  time service  real-time  UTC(NTSC)  国际GNSS监测评估系统  亚纳秒  时间服务  实时  UTC(NTSC)   Thermal stability and performance of optimized ZrCx diffusion barriers in ceramic coating systems for ATF applications 期刊论文  OAI收割 JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2021, 页码: 8 作者:  Chen, Lina;  Lei, Yiming;  Li, Wenli;  Zhang, Jie;  Wang, Jingyang   |  收藏  |  浏览/下载：40/0  |  提交时间：2021/10/15 accident-tolerant fuels  diffusion barriers  sub-stoichiometric zirconium carbide coatings  the integrated ceramic coating system  thermal stability   Neutronics study of a subcritical system driven by external neutron source for Mo-99 production 期刊论文  OAI收割 FUSION ENGINEERING AND DESIGN, 2021, 卷号: 165 作者:  Ren, Lei;  Li, Zi-Wei;  Han, Yun-Cheng;  Wang, Xiao-Yu;  Zhang, Jia-Chen   |  收藏  |  浏览/下载：32/0  |  提交时间：2021/05/06 Medical radioisotope Mo-99  Neutronics  Sub-critical system  LEU solution  UO2SO4   Development and validation of Burn-up Calculation Code IMPC-Burnup2.0 for accelerator-driven sub-critical system 期刊论文  OAI收割 COMPUTER PHYSICS COMMUNICATIONS, 2021, 卷号: 261, 页码: 9 作者:  Zhao, Zelong;  Yang, Yongwei;  Gao, Qingyu   |  收藏  |  浏览/下载：39/0  |  提交时间：2021/12/10 Accelerator-driven sub-critical system  IMPC-Depletion  OpenMC  IMPC-Burnup2.0   Sub-nanosecond one-way real-time time service system based on UTC 期刊论文  OAI收割 GPS SOLUTIONS, 2021, 卷号: 25, 期号: 2, 页码: 9 作者:  Wu, Meifang;  Sun, Baoqi;  Wang, Yuanxin;  Zhang, Zhe;  Su, Hang   |  收藏  |  浏览/下载：40/0  |  提交时间：2021/11/29 Sub-nanosecond  Real-time  UTC  Time service system   Robust Latent Factor Analysis for Precise Representation of High-Dimensional and Sparse Data 期刊论文  OAI收割 IEEE/CAA Journal of Automatica Sinica, 2021, 卷号: 8, 期号: 4, 页码: 796-805 作者:  Di Wu;  Xin Luo   |  收藏  |  浏览/下载：22/0  |  提交时间：2021/04/09 High-dimensional and sparse matrix  L1-norm  L2-norm  latent factor model  recommender system  smooth L1-norm   Sub-aperture optical system testing by using of a modified simulateous fit method 会议论文  OAI收割 Shanghai, China, 2020-06-29 作者:  Kewei, E.;  Zhao, Jianke;  Wang, Tao;  Wang, Zhengfeng;  Liu, Kai   |  收藏  |  浏览/下载：40/0  |  提交时间：2021/03/04 wavefront testing  sub-aperture stitching  large aperture optical system  simultaneous fit   Constraining the X-Ray-Infrared Spectral Index of Second-timescale Flares from SGR 1935+2154 with Palomar Gattini-IR 期刊论文  OAI收割 The Astrophysical Journal, 2020, 卷号: 901, 页码: L7 作者:  HXMT   |  收藏  |  浏览/下载：28/0  |  提交时间：2022/02/08 Radio transient sources  Magnetars  Soft gamma-ray repeaters  2008  992  1471  Astrophysics - High Energy Astrophysical Phenomena  Astrophysics - Instrumentation and Methods for Astrophysics  Abstract: The Galactic magnetar SGR 1935+2154 has been reported to produce the first example of a bright millisecond-duration radio burst (FRB 200428) similar to the cosmological population of fast radio bursts (FRBs). The detection of a coincident bright X-ray burst represents the first observed multiwavelength counterpart of an FRB. However, the search for similar emission at optical wavelengths has been hampered by the high inferred extinction on the line of sight. Here, we present results from the first search for second-timescale emission from the source at near-infrared (NIR) wavelengths using the Palomar Gattini-IR observing system in the J band, enabled by a novel detector readout mode that allows short exposure times of ?0.84 s with 99.9% observing efficiency. With a total observing time of ?12 hr (?47,728 images) during its 2020 outburst, we place median 3Ҡlimits on the second-timescale NIR fluence of ?18 Jy ms (13.1 AB mag). The corresponding extinction-corrected limit is ?125 Jy ms for an estimated extinction of AJ = 2.0 mag. Our observations were sensitive enough to easily detect an NIR counterpart of FRB 200428 if the NIR emission falls on the same power law as observed across its radio to X-ray spectrum. We report nondetection limits from epochs of four simultaneous X-ray bursts detected by the Insight-HXMT and NuSTAR telescopes during our observations. These limits provide the most stringent constraints to date on fluence of flares at 1014 Hz, and constrain the fluence ratio of the NIR emission to coincident X-ray bursts to RNIR ? 0.025 (fluence index ?0.35).   AN APPROXIMATE ALGORITHM TO SOLVE LINEAR SYSTEMS BY MATRIX WITH OFF-DIAGONAL EXPONENTIAL DECAY ENTRIES 期刊论文  OAI收割 INTERNATIONAL JOURNAL OF NUMERICAL ANALYSIS AND MODELING, 2018, 卷号: 15, 期号: 3, 页码: 340-352 作者:  Chang, Qiangshun;  Lin, Yanping;  Xu, Shuzhan   |  收藏  |  浏览/下载：26/0  |  提交时间：2018/07/30 Linear equation  numerical solution  sub-linear system  decomposition