Percutaneous closure of a prosthetic paravalvular leak （PVL） is a challenging procedure. Operators must use devices constructed for other applications. We present the use of a device which is specifically designed f...Percutaneous closure of a prosthetic paravalvular leak （PVL） is a challenging procedure. Operators must use devices constructed for other applications. We present the use of a device which is specifically designed for PVL closure. To the best of our knowledge, there is no publication in MEDLINE reporting the use of the device.展开更多
By virtue of the technique of integration within an ordered product of operators we present a new formulation of the Weyl quantization scheme in the coherent state representation, which not only brings convenience for...By virtue of the technique of integration within an ordered product of operators we present a new formulation of the Weyl quantization scheme in the coherent state representation, which not only brings convenience for calculating the Weyl correspondence of normally ordered operators, but also directly leads us to find both the coherent state representation and the Weyl ordering representation of the Wigner operator.展开更多
Local government press is one of important channels of conveying information in the local space. Its functions are being constantly redefined as a result of the changing paradigm of communicating on the local level. L...Local government press is one of important channels of conveying information in the local space. Its functions are being constantly redefined as a result of the changing paradigm of communicating on the local level. Local government press gains particular importance during any election campaign becoming the carrier of information for local authorities seeking reelection. The following text presents the results of research carried out in selected cities with poviat rights in the last quarter of 2014, during the local government election campaign in Poland.展开更多
The construction of Grain Production Functional Zone and Modern Agicultural Zone （Two Zones for short） plays a key role in the development of modern agriculture and solving the quantity and quality problems of agric...The construction of Grain Production Functional Zone and Modern Agicultural Zone （Two Zones for short） plays a key role in the development of modern agriculture and solving the quantity and quality problems of agricultural products. The Two Zones serves as the important form and carrier of agricultural standardization and the agricultural standardization provides means and ways for it. The paper puts forward the suggestions and solutions for agricultural standardization in Two Zones in the aspects of boosting standards innovation projects, management and so forth.展开更多
文摘Percutaneous closure of a prosthetic paravalvular leak （PVL） is a challenging procedure. Operators must use devices constructed for other applications. We present the use of a device which is specifically designed for PVL closure. To the best of our knowledge, there is no publication in MEDLINE reporting the use of the device.
基金Supported by the National Natural Science Foundation of China under Grant No.10775097
文摘By virtue of the technique of integration within an ordered product of operators we present a new formulation of the Weyl quantization scheme in the coherent state representation, which not only brings convenience for calculating the Weyl correspondence of normally ordered operators, but also directly leads us to find both the coherent state representation and the Weyl ordering representation of the Wigner operator.
文摘Local government press is one of important channels of conveying information in the local space. Its functions are being constantly redefined as a result of the changing paradigm of communicating on the local level. Local government press gains particular importance during any election campaign becoming the carrier of information for local authorities seeking reelection. The following text presents the results of research carried out in selected cities with poviat rights in the last quarter of 2014, during the local government election campaign in Poland.
文摘The construction of Grain Production Functional Zone and Modern Agicultural Zone （Two Zones for short） plays a key role in the development of modern agriculture and solving the quantity and quality problems of agricultural products. The Two Zones serves as the important form and carrier of agricultural standardization and the agricultural standardization provides means and ways for it. The paper puts forward the suggestions and solutions for agricultural standardization in Two Zones in the aspects of boosting standards innovation projects, management and so forth.
