In last years,with the Object-Oriented Programming popular and the field of database application extend-ed, many DBMS manufacturers integrate the object model into traditional Relational Database Management Systems(RD...In last years,with the Object-Oriented Programming popular and the field of database application extend-ed, many DBMS manufacturers integrate the object model into traditional Relational Database Management Systems(RDBMSs)one after another,in order to meet the needs for complex engineering applications. This paper firstly givesa total remark on the reason for the prevalence of the Object-Relational Database Systems (ORDBMs)and on the ben-efit of ORDBMSs comparing with RDBMSs and Object Oriented Database Management Systems (OODBMSs) ,then in-troduces an approach for ORDBMS architecture which integrates the Java class library into ORDBMS metadata repos-itory.展开更多
In order to organize and transform data relations dynamically according to the daily requirements ,a new data model,Relation Oriented model(RO model)is proposed. RO model is described at the physical,data,relational a...In order to organize and transform data relations dynamically according to the daily requirements ,a new data model,Relation Oriented model(RO model)is proposed. RO model is described at the physical,data,relational and external schema. In physical schema,a middleware mechanism is used to realize the distributed processing. In data schema ,data group(DG)is defined as the independent atomic unit of data organizing. In relational schema ,the data relations can be organized and transformed dynamically,even on runtime environment. In external schema ,RO model supports the workflow. The building of RO model will reduce the overhead in repeating developments of database applications to a large extent.展开更多
提出了一种适用于生物信息领域的RM-CwX(RDB model compafible with XML)数据库构建模式，它采用关系数据库管理系统来存储和管理收集到的生物信息，采用XML形式的半结构化数据进行信息的发布。通过硒蛋白相关生物信息二级数据库的构建...提出了一种适用于生物信息领域的RM-CwX(RDB model compafible with XML)数据库构建模式，它采用关系数据库管理系统来存储和管理收集到的生物信息，采用XML形式的半结构化数据进行信息的发布。通过硒蛋白相关生物信息二级数据库的构建实例说明，该模式可有效地构建生物信息二级数据库系统，在对相关生物信息进行及时收集和有效管理的基础上，不仅可以提供相关生物信息的网页浏览及交叉索引，提供复杂的信息检索，同时还能够较大限度地处理生物信息数据源中常见的不一致和变化等。展开更多
目的探讨乌克兰战时军队人员心理急救(psychological first aid,PFA)模式和流程,为我军PFA的开展及培训提供借鉴。方法重点介绍乌克兰战时PFA三级结构模式,梳理其具体任务、实施者、PFA的不同时间、地点以及内容。结果乌克兰军队PFA模...目的探讨乌克兰战时军队人员心理急救(psychological first aid,PFA)模式和流程,为我军PFA的开展及培训提供借鉴。方法重点介绍乌克兰战时PFA三级结构模式,梳理其具体任务、实施者、PFA的不同时间、地点以及内容。结果乌克兰军队PFA模式和流程已经过顿巴斯战争(2016~2019年)和当前俄乌冲突的实践检验,对我军未来战场PFA工作具有启示作用。结论通过研究乌克兰战时PFA模式,本文从培养一线救援力量、确立基本原则和策略、构建阶梯后送体系三个方面提出了对我军PFA的启示;并指出培养一线救援力量是提高战场心理急救时效的前提,确立基本原则和策略是开展战场心理急救工作的关键,构建阶梯后送体系是实施战场心理急救任务的保证。展开更多
文摘In last years,with the Object-Oriented Programming popular and the field of database application extend-ed, many DBMS manufacturers integrate the object model into traditional Relational Database Management Systems(RDBMSs)one after another,in order to meet the needs for complex engineering applications. This paper firstly givesa total remark on the reason for the prevalence of the Object-Relational Database Systems (ORDBMs)and on the ben-efit of ORDBMSs comparing with RDBMSs and Object Oriented Database Management Systems (OODBMSs) ,then in-troduces an approach for ORDBMS architecture which integrates the Java class library into ORDBMS metadata repos-itory.
文摘In order to organize and transform data relations dynamically according to the daily requirements ,a new data model,Relation Oriented model(RO model)is proposed. RO model is described at the physical,data,relational and external schema. In physical schema,a middleware mechanism is used to realize the distributed processing. In data schema ,data group(DG)is defined as the independent atomic unit of data organizing. In relational schema ,the data relations can be organized and transformed dynamically,even on runtime environment. In external schema ,RO model supports the workflow. The building of RO model will reduce the overhead in repeating developments of database applications to a large extent.
文摘提出了一种适用于生物信息领域的RM-CwX(RDB model compafible with XML)数据库构建模式，它采用关系数据库管理系统来存储和管理收集到的生物信息，采用XML形式的半结构化数据进行信息的发布。通过硒蛋白相关生物信息二级数据库的构建实例说明，该模式可有效地构建生物信息二级数据库系统，在对相关生物信息进行及时收集和有效管理的基础上，不仅可以提供相关生物信息的网页浏览及交叉索引，提供复杂的信息检索，同时还能够较大限度地处理生物信息数据源中常见的不一致和变化等。
文摘目的探讨乌克兰战时军队人员心理急救(psychological first aid,PFA)模式和流程,为我军PFA的开展及培训提供借鉴。方法重点介绍乌克兰战时PFA三级结构模式,梳理其具体任务、实施者、PFA的不同时间、地点以及内容。结果乌克兰军队PFA模式和流程已经过顿巴斯战争(2016~2019年)和当前俄乌冲突的实践检验,对我军未来战场PFA工作具有启示作用。结论通过研究乌克兰战时PFA模式,本文从培养一线救援力量、确立基本原则和策略、构建阶梯后送体系三个方面提出了对我军PFA的启示;并指出培养一线救援力量是提高战场心理急救时效的前提,确立基本原则和策略是开展战场心理急救工作的关键,构建阶梯后送体系是实施战场心理急救任务的保证。
