排序方式： 共有21条查询结果，搜索用时 15 毫秒
1.
屈长青 《湖南科技学院学报》2007,28(4):34-36
分布式入侵检测系统（DIDS）是一种分布于网络环境的入侵检测系统,随着网络环境的日益复杂化,DIDS的设计任务也日趋繁重,对系统的仿真是其规划和设计的首要任务。高层体系结构（HLA）是当今世界上非常流行的分布式仿真技术之一,它建立了一个通用的仿真技术框架。基于HLA的仿真应用系统的设计,已经成为当前的研究热点。分析了HLA和DIDS的基本框架,以HLA为基础,借用相关辅助设计软件,对分布式入侵检测系统进行了仿真设计。通过仿真,较好地解决了分布式入侵检测系统的规划和设计方案的复杂性问题,为进一步的实际开发和应用提供了可靠的依据。 相似文献
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为了提高仿真系统的可重用性,提出采用HLA作为仿真体系框架,利用HLA把航天测控训练仿真系统设计为一个联邦,分析其系统组成并按功能划分为若干联邦成员,以便进行分布式仿真。阐述了基于HLA的航天测控训练仿真系统联邦的设计方法和思路,深入探讨了联邦成员的划分及对象模型的设计,并给出了仿真流程与三维显示的实现过程。 相似文献
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基于创新管理相关理论,提出了知识型员工创新绩效概念模型。该模型涵盖了个人与组织两个层面。在个人层面,模型描述了创新意愿同创新绩效的正向关系,揭示了吸收能力的调节作用和知识扩散路径的中介作用;在组织层面,模型阐释了创新氛围的调节作用。随后,通过对调查数据的多元线性回归和多层线性分析,验证了依据概念模型提出的假设。研究还发现,在吸收能力的不同阶段,知识扩散路径对创新绩效的促进作用存有差异。因此,对知识扩散路径的选择要同员工的知识吸收能力相匹配。 相似文献
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介绍了一个以船艇武器系统为背景的综合仿真平台，仿真平台的设计利用了HLA架构下的仿真模型理论，包括系统结构，系统开发流程，系统功能设计，系统联邦成员划分等，解决了不同仿真应用之间的集成问题，较好地满足了仿真系统的互操作、可重用等要求。 相似文献
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Witas HW Jedrychowska-Dańska K Zawicki P 《Journal of Zhejiang University. Science. B》2007,8(7):512-514
The precise etiology and reasons for the increase in incidence of autoimmune disorders still remain unclear, and although both genetic and environmental factors have been proven to shape individual predisposition, it is not known which of the factors, if not both, is responsible for the boom observed during the last decades. In order to establish whether a higher frequency of autoimmune-predisposing alleles may explain this increase we took advantage of ancient DNA methodology to establish the genetic predisposition, conferred by cytotoxic T lymphocyte associated antigen-4 （CTLA4） ＋49A/G and human leukocyte antigens （HLA） DQBI^57, in population inhabiting Poland in the Middle Ages. After successful typing of 42 individuals from a 12th-14th＇s century archeological burial site, we found that frequencies of the predisposing alleles in the medieval population were higher than they are at present, suggesting thus that the recently observed incidence increase results most probably from factors of other than genetic nature. 相似文献
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Shi L Huang XQ Shi L Tao YF Yao YF Yu L Lin KQ Yi W Sun H Tokunaga K Chu JY 《Journal of Zhejiang University. Science. B》2011,12(6):428-435
A study of the human leukocyte antigen (HLA) genetic characteristics in the Zhuang, the largest ethnic population in China, would provide insight into Zhuang history and give a useful tool for disease associations, transplantation, and anthropology. In the present study, we report the comprehensive HLA-A, HLA-B, HLA-C, and HLA-DRB1 alleles and haplotypes in the Zhuang population of southern China for the first time. A total of 13 HLA-A, 24 HLA-B, 22 HLA-C, and 18 HLA-DRB1 were identified in 104 Zhuang individuals. The frequencies of HLA-A*11:01, A*02:07, A*24:02, A*02:03, and A*33:03 on A loci, B*15:02, B*58:01, B*46:01, and B*13:01 on B loci, C*03:04, C*08:01, C*01:02, C*03:02, and C*07:02 on C loci, and DRB1*15:01, DRB1*16:02, DRB1*14:01, DRB1*15:02, and DRB1*03:01 on the DRB1 loci were >10%. The A*33:03-C*03:02-B*58:01-DRB1*03:01 and A*02:07-C*01:02-B*46:01-DRB1*14:01 haplotypes were predominant in the Zhuang. The phylogenetic tree, as well as the analysis of haplotypes, suggested that the Zhuang are genetically similar to southern Chinese populations, especially the Zhuang-Dong language-speaking populations, such as the Bouyei, Dai, and Maonan. Even though the Zhuang and southern Chinese populations shared common alleles and haplotypes, the Zhuang has maintained its unique genetic characteristics. 相似文献
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血型是以血液抗原形式表现出来的一种遗传性状,在人类学、遗传学、法医学、临床医学等学科都有广泛的实用价值。中学生物学教材中和遗传、稳态与环境相关的内容以及生物学竞赛经常涉及到与血型有关的知识,本文主要讲述血型的分类特征、遗传特性和实际应用价值。 相似文献
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以现代计算机技术为支撑的仿真技术已在各个领域得到广泛地应用,该技术有效地弥补了产品实践性检验难度大的短板,大大降低了项目研发成本,并能够对产品进行可行性验证,极大程度提高了企业的决策与应变能力。然而仿真基础平台的建设是能否实现大规模集成仿真的关键因素,如何构建基础平台与联邦成员已成为实现大规模集成仿真急需解决的技术核心。 相似文献
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Naoki Mantani Hiroshi Oka Takashi Watanabe Kyohei Miyakawa Yoko Kimura 《Indian journal of clinical biochemistry : IJCB》2021,36(3):375
HLA association with drug-induced liver injury has recently been pointed out about multiple medicines. The aim of this study was to evaluate relationship between HLA gene and liver injury related to Baikal skullcap-containing Kampo medicines (BSCK). We previously examined HLA genes in 3 cases of BSCK-induced liver injury. Recently we could encounter 2 cases diagnosed as “definitely-related case” of BSCK-induced liver injury. HLA genes of the 2 cases were analyzed by Sequencing Based Typing method with Next Generation Sequencer at HLA Laboratory in Kyoto. HLA-DPA1*02:02:02 and DPB1*05:01:01 were observed in the 2 cases: concordance was not observed in HLA-A, B, C, DRB1, DRB4, DQA1, or DQB1. The previous 3 cases of BSCK-induced liver injury had the same allele type to the 2 cases only in HLA-DPA1. Putting all these together, HLA-DPA1*02:02:02 was observed in common among 5 cases of BSCK-induced liver injury. HLA-DPA1*02:02:02 is possibly associated with BSCK-induced liver injury. 相似文献