In the current article we propose a new efficient, reliable and breakdown-free algorithm for solving general opposite-bordered tridiagonal linear systems. An explicit formula for computing the determinant of an opposi...In the current article we propose a new efficient, reliable and breakdown-free algorithm for solving general opposite-bordered tridiagonal linear systems. An explicit formula for computing the determinant of an opposite-bordered tridiagonal matrix is investigated. Some illustrative examples are given.展开更多
This paper presents new numeric and symbolic algorithms for solving doubly bordered tridiagonal linear system. The proposed algorithms are derived using partition together with UL factorization. Inversion algorithm fo...This paper presents new numeric and symbolic algorithms for solving doubly bordered tridiagonal linear system. The proposed algorithms are derived using partition together with UL factorization. Inversion algorithm for doubly bordered tridiagonal matrix is also considered based on the Sherman-Morrison-Woodbury formula. The algorithms are implemented using the computer algebra system, MAPLE. Some illustrative examples are given.展开更多
In China with the implement of the strategy of overall opening up to the outside world,northeast China has basically formed an open pattern with simultineous development of border opening and coast opening. As a natio...In China with the implement of the strategy of overall opening up to the outside world,northeast China has basically formed an open pattern with simultineous development of border opening and coast opening. As a national window to open up to the outside world, an open port system in northeast region has formed. These ports can be classified from different angles, such as management level, transport mode, location. From management level, they can be classified into the state firstclass ports and the second-class ports. According to transpost mode, they can be divided into railway port, highway port, water transport port, air transport port and special mode port, and based on location, they can be divided into border port, coast port and inland port. The oaper introduces in detail the foreign trade connection of 4 most representative state first-class border ports: Hunchun, Suifenhe, Heihe and Manzhouli. The open ports Of northeast coast regin mean mainly coast water transport ports in Liaodong Peninsula. The foreign trade connection of coast open ports: Dandong, Jinzhou,Yingkou and Dalian is expounded. And the paper also analyses the transport connection of ports of northeast region with their hinterlands.展开更多
智慧边境建设是保障中国边境安全、维系国家地缘安全和实现可持续发展的核心议题。以web of science为数据源,利用Cite Space解析智慧边境研究特征及国外研究进展,并展望未来研究方向。结果表明:智慧边境研究尚处于起步阶段,发文数量呈...智慧边境建设是保障中国边境安全、维系国家地缘安全和实现可持续发展的核心议题。以web of science为数据源,利用Cite Space解析智慧边境研究特征及国外研究进展,并展望未来研究方向。结果表明:智慧边境研究尚处于起步阶段,发文数量呈波动上升趋势,但研究关注度较低。智慧边境研究群体分布分散,仅存在少量合作关系,尚未形成紧密的合作性作者网络,美国、英国、中国、加拿大、德国是研究智慧边境较多的国家。边境安全是智慧边境研究最关注的话题,移民管理和智能监控是智慧边境建设的重点。智慧边境研究主要围绕智慧边境内涵、智慧边境需求、智慧边境系统、预警机制构建、再边境化与智慧化和边境战略与跨境合作6个议题展开。未来,智慧边境研究应深化智慧边境理论与方法创新,开展中国智慧边境管控体系构建,加强通道精准管控与预警研究,探究多主体联动与人性化治理模式。展开更多
文摘In the current article we propose a new efficient, reliable and breakdown-free algorithm for solving general opposite-bordered tridiagonal linear systems. An explicit formula for computing the determinant of an opposite-bordered tridiagonal matrix is investigated. Some illustrative examples are given.
文摘This paper presents new numeric and symbolic algorithms for solving doubly bordered tridiagonal linear system. The proposed algorithms are derived using partition together with UL factorization. Inversion algorithm for doubly bordered tridiagonal matrix is also considered based on the Sherman-Morrison-Woodbury formula. The algorithms are implemented using the computer algebra system, MAPLE. Some illustrative examples are given.
文摘In China with the implement of the strategy of overall opening up to the outside world,northeast China has basically formed an open pattern with simultineous development of border opening and coast opening. As a national window to open up to the outside world, an open port system in northeast region has formed. These ports can be classified from different angles, such as management level, transport mode, location. From management level, they can be classified into the state firstclass ports and the second-class ports. According to transpost mode, they can be divided into railway port, highway port, water transport port, air transport port and special mode port, and based on location, they can be divided into border port, coast port and inland port. The oaper introduces in detail the foreign trade connection of 4 most representative state first-class border ports: Hunchun, Suifenhe, Heihe and Manzhouli. The open ports Of northeast coast regin mean mainly coast water transport ports in Liaodong Peninsula. The foreign trade connection of coast open ports: Dandong, Jinzhou,Yingkou and Dalian is expounded. And the paper also analyses the transport connection of ports of northeast region with their hinterlands.
文摘智慧边境建设是保障中国边境安全、维系国家地缘安全和实现可持续发展的核心议题。以web of science为数据源,利用Cite Space解析智慧边境研究特征及国外研究进展,并展望未来研究方向。结果表明:智慧边境研究尚处于起步阶段,发文数量呈波动上升趋势,但研究关注度较低。智慧边境研究群体分布分散,仅存在少量合作关系,尚未形成紧密的合作性作者网络,美国、英国、中国、加拿大、德国是研究智慧边境较多的国家。边境安全是智慧边境研究最关注的话题,移民管理和智能监控是智慧边境建设的重点。智慧边境研究主要围绕智慧边境内涵、智慧边境需求、智慧边境系统、预警机制构建、再边境化与智慧化和边境战略与跨境合作6个议题展开。未来,智慧边境研究应深化智慧边境理论与方法创新,开展中国智慧边境管控体系构建,加强通道精准管控与预警研究,探究多主体联动与人性化治理模式。
