随着计算机技术、网络技术以及通讯技术的迅速发展,实现地理空间信息共享势在必行。该文实现了一个地理空间信息共享系统(GeospAtial Information System),详细论述了该系统的设计思路与实现机制。利用统一的地理空间信息资源元数据标...随着计算机技术、网络技术以及通讯技术的迅速发展,实现地理空间信息共享势在必行。该文实现了一个地理空间信息共享系统(GeospAtial Information System),详细论述了该系统的设计思路与实现机制。利用统一的地理空间信息资源元数据标准框架,解决了来自多个异构数据源具有多种数据格式的地理空间信息资源产品难以被有效管理和使用的问题;采用推拉技术相结合的方式,实现了分发服务的主动性;提出了一种基于策略的缓存管理技术,大大提高了系统效率;采用的基于集群的查询服务和文件传输服务具有高性价比和良好的可扩充性。展开更多
Using Harrison's model and anisotropic parabolic approximation,the band structure of In1- x- y Gay Alx As compressively strained quantum wells is calculated.To design lasers with1.55μm wavelength,it is necessary...Using Harrison's model and anisotropic parabolic approximation,the band structure of In1- x- y Gay Alx As compressively strained quantum wells is calculated.To design lasers with1.55μm wavelength,it is necessary to an- alyze the well width,differential gain,transparency carrier density and the characteristic gain for an arbitrary com- position.Some useful empirical formulas are also presented.展开更多
Since ChatGPT emerged on November 30, 2022, Artificial Intelligence (AI) has been increasingly discussed as a radical force that will change our world. People have become used to AI in which such ubiquitous technologi...Since ChatGPT emerged on November 30, 2022, Artificial Intelligence (AI) has been increasingly discussed as a radical force that will change our world. People have become used to AI in which such ubiquitous technologies as Siri, Google, and Netflix deploy AI algorithms to answer questions, impart information, and provide recommendations. However, many individuals including originators and backers of AI have recently expressed grave concerns. In this paper, the authors will assess what is occurring with AI in Visual Arts Education, outline positives and negatives, and provide recommendations addressed specifically for teachers working in the field regarding emerging AI usage from kindergarten to grade twelve levels as well as in higher education.展开更多
文摘随着计算机技术、网络技术以及通讯技术的迅速发展,实现地理空间信息共享势在必行。该文实现了一个地理空间信息共享系统(GeospAtial Information System),详细论述了该系统的设计思路与实现机制。利用统一的地理空间信息资源元数据标准框架,解决了来自多个异构数据源具有多种数据格式的地理空间信息资源产品难以被有效管理和使用的问题;采用推拉技术相结合的方式,实现了分发服务的主动性;提出了一种基于策略的缓存管理技术,大大提高了系统效率;采用的基于集群的查询服务和文件传输服务具有高性价比和良好的可扩充性。
文摘Using Harrison's model and anisotropic parabolic approximation,the band structure of In1- x- y Gay Alx As compressively strained quantum wells is calculated.To design lasers with1.55μm wavelength,it is necessary to an- alyze the well width,differential gain,transparency carrier density and the characteristic gain for an arbitrary com- position.Some useful empirical formulas are also presented.
文摘Since ChatGPT emerged on November 30, 2022, Artificial Intelligence (AI) has been increasingly discussed as a radical force that will change our world. People have become used to AI in which such ubiquitous technologies as Siri, Google, and Netflix deploy AI algorithms to answer questions, impart information, and provide recommendations. However, many individuals including originators and backers of AI have recently expressed grave concerns. In this paper, the authors will assess what is occurring with AI in Visual Arts Education, outline positives and negatives, and provide recommendations addressed specifically for teachers working in the field regarding emerging AI usage from kindergarten to grade twelve levels as well as in higher education.
