Discovery of materials using“bottom-up”or“top-down”approach is of great interest in materials science.Layered materials consisting of two-dimensional(2D)building blocks provide a good platform to explore new mater...Discovery of materials using“bottom-up”or“top-down”approach is of great interest in materials science.Layered materials consisting of two-dimensional(2D)building blocks provide a good platform to explore new materials in this respect.In van der Waals(vdW)layered materials,these building blocks are charge neutral and can be isolated from their bulk phase(top-down),but usually grow on substrate.In ionic layered materials,they are charged and usually cannot exist independently but can serve as motifs to construct new materials(bottom-up).In this paper,we introduce our recently constructed databases for 2D material-substrate interface(2DMSI),and 2D charged building blocks.For 2DMSI database,we systematically build a workflow to predict appropriate substrates and their geometries at substrates,and construct the 2DMSI database.For the 2D charged building block database,1208 entries from bulk material database are identified.Information of crystal structure,valence state,source,dimension and so on is provided for each entry with a json format.We also show its application in designing and searching for new functional layered materials.The 2DMSI database,building block database,and designed layered materials are available in Science Data Bank at https://doi.org/10.57760/sciencedb.j00113.00188.展开更多
文章研究内容是探索建立切削数据学习系统数据库及其操作系统的理论方法和体系结构。利用Visual Basic 6.0提供的数据库访问功能ADO(Active X Data Objects)接口,快速连接并实现数据库间的数据检索。通过多媒体切削信息的整合与运用,实...文章研究内容是探索建立切削数据学习系统数据库及其操作系统的理论方法和体系结构。利用Visual Basic 6.0提供的数据库访问功能ADO(Active X Data Objects)接口,快速连接并实现数据库间的数据检索。通过多媒体切削信息的整合与运用,实现形式多样化的文档、图片和视频资料数据的安全链接和共享。展开更多
根据某公司员工自助服务的需求,针对在ERP系统中没有登录账号,仍然需要实现对员工自己相关人事信息提供自助服务的特殊要求,提出了安全可行的企业门户、EP和ERP三系统的集成方案,满足了单点登录的要求。对系统的架构进行了详细设计,论...根据某公司员工自助服务的需求,针对在ERP系统中没有登录账号,仍然需要实现对员工自己相关人事信息提供自助服务的特殊要求,提出了安全可行的企业门户、EP和ERP三系统的集成方案,满足了单点登录的要求。对系统的架构进行了详细设计,论述了权限的控制方案,并对关键部分的程序进行了设计和代码实现。所设计的员工自助服务系统基于B/S运行模式,采用Web Dynpro for Abap技术开发,程序界面的易操作性接近Windows程序,交互性能在Web程序中具有绝对的优势。此外,系统在确保安全可靠、权限控制到位的前提下,实现了不具备ERP账号的员工对自己在ERP系统中的人事信息维护,而且为了促使业务流程的及时流转所采用的保障措施也具备一定的先进性。展开更多
基金Project supported by the National Natural Science Foundation of China(Grant Nos.61888102,52272172,and 52102193)the Major Program of the National Natural Science Foundation of China(Grant No.92163206)+2 种基金the National Key Research and Development Program of China(Grant Nos.2021YFA1201501 and 2022YFA1204100)the Strategic Priority Research Program of the Chinese Academy of Sciences(Grant No.XDB30000000)the Fundamental Research Funds for the Central Universities.
文摘Discovery of materials using“bottom-up”or“top-down”approach is of great interest in materials science.Layered materials consisting of two-dimensional(2D)building blocks provide a good platform to explore new materials in this respect.In van der Waals(vdW)layered materials,these building blocks are charge neutral and can be isolated from their bulk phase(top-down),but usually grow on substrate.In ionic layered materials,they are charged and usually cannot exist independently but can serve as motifs to construct new materials(bottom-up).In this paper,we introduce our recently constructed databases for 2D material-substrate interface(2DMSI),and 2D charged building blocks.For 2DMSI database,we systematically build a workflow to predict appropriate substrates and their geometries at substrates,and construct the 2DMSI database.For the 2D charged building block database,1208 entries from bulk material database are identified.Information of crystal structure,valence state,source,dimension and so on is provided for each entry with a json format.We also show its application in designing and searching for new functional layered materials.The 2DMSI database,building block database,and designed layered materials are available in Science Data Bank at https://doi.org/10.57760/sciencedb.j00113.00188.
文摘文章研究内容是探索建立切削数据学习系统数据库及其操作系统的理论方法和体系结构。利用Visual Basic 6.0提供的数据库访问功能ADO(Active X Data Objects)接口,快速连接并实现数据库间的数据检索。通过多媒体切削信息的整合与运用,实现形式多样化的文档、图片和视频资料数据的安全链接和共享。
文摘根据某公司员工自助服务的需求,针对在ERP系统中没有登录账号,仍然需要实现对员工自己相关人事信息提供自助服务的特殊要求,提出了安全可行的企业门户、EP和ERP三系统的集成方案,满足了单点登录的要求。对系统的架构进行了详细设计,论述了权限的控制方案,并对关键部分的程序进行了设计和代码实现。所设计的员工自助服务系统基于B/S运行模式,采用Web Dynpro for Abap技术开发,程序界面的易操作性接近Windows程序,交互性能在Web程序中具有绝对的优势。此外,系统在确保安全可靠、权限控制到位的前提下,实现了不具备ERP账号的员工对自己在ERP系统中的人事信息维护,而且为了促使业务流程的及时流转所采用的保障措施也具备一定的先进性。
