AN art exhibition of works by more than 10 Chinese artists, including oils, engravings, traditional Chinese paintings, sculpture, art installations and performanceart was recently held in Beijing. The most eminent of ...AN art exhibition of works by more than 10 Chinese artists, including oils, engravings, traditional Chinese paintings, sculpture, art installations and performanceart was recently held in Beijing. The most eminent of these art-ists have a solid background in fine arts, to which the distinctive character of their work, seen in prestigious museums and private collections, bears witness. They are Zhou Jirong, Tan Ping, Wang Yuping, Shen Ling, Su Xinping, Lu Peng and Yang Mian.展开更多
Fllowing the derivation of equations for ray propagation in anisotropic medium, the equations for determinining the ray path featuring progressively increasing and decreasing distribution of index of refraction are pr...Fllowing the derivation of equations for ray propagation in anisotropic medium, the equations for determinining the ray path featuring progressively increasing and decreasing distribution of index of refraction are presented’ With computer the actual ray path can be trced and positions of both observation and image points can be quantitatively indicated for direct perceiving tbe mirage formation. At the end a discussion of the mirage observation zone is attached.展开更多
The studied subject is about subsidence coefficient of mirages and dynamic storage volume of Karstic springs in Khorram Abad in West of Iran. Subsidence coefficient indicates ability of groundwater discharge and hydro...The studied subject is about subsidence coefficient of mirages and dynamic storage volume of Karstic springs in Khorram Abad in West of Iran. Subsidence coefficient indicates ability of groundwater discharge and hydrologic properties of the environment;meaning effective porosity and transfer coefficient of springs. In general, in developed Karstic zones, each direct line of subsidence curve indicates a discharge regime. Obtained results from the study show that subsidence branch of Golestan, Motahari, Niloofar (changaei), Navekech, Dore Robat mirages have subsidence coefficient with mild slope and low value, which demonstrate passage of water through a seams system at the karst springs. Q and whirlpool stone mirages have two subsidence coefficients, which indicate passage of water through two seam systems in Karstic environment of springs. According to obtained results, process of changes in subsidence branch in these mirages has had at the first a mild slope and low discharge coefficient and in continue, its discharge would be declined with sharper slope and high discharge coefficient. In order to estimate dynamic storage volume of springs, MAILET general equation is applied, which is suitable for subsidence branch of hydrographs of centralized springs discharge. Following, dynamic storage volume of studied springs is analyzed and obtained results are presented in this study respectively.展开更多
In the far field of the intensity distribution of the beam delivered by a two-stage transient–collisional excitation X-ray laser(XRL), a non-expected interference pattern that is stable from shot to shot has been dis...In the far field of the intensity distribution of the beam delivered by a two-stage transient–collisional excitation X-ray laser(XRL), a non-expected interference pattern that is stable from shot to shot has been discovered. It is demonstrated that the interference is caused by the emergence of an imaginary source in the amplifying plasma, which is phase matched to the radiation of the generator. The observed phenomenon is called an X-ray coherent mirage. To explain the obtained results, a new theoretical approach is developed. The basic essential conditions for formation of the X-ray mirage are formulated, and possible applications are discussed. This paper details the experiments, including the formulation of the necessary and sufficient conditions for formation of the X-ray mirage, and possible applications are discussed.展开更多
文摘AN art exhibition of works by more than 10 Chinese artists, including oils, engravings, traditional Chinese paintings, sculpture, art installations and performanceart was recently held in Beijing. The most eminent of these art-ists have a solid background in fine arts, to which the distinctive character of their work, seen in prestigious museums and private collections, bears witness. They are Zhou Jirong, Tan Ping, Wang Yuping, Shen Ling, Su Xinping, Lu Peng and Yang Mian.
文摘Fllowing the derivation of equations for ray propagation in anisotropic medium, the equations for determinining the ray path featuring progressively increasing and decreasing distribution of index of refraction are presented’ With computer the actual ray path can be trced and positions of both observation and image points can be quantitatively indicated for direct perceiving tbe mirage formation. At the end a discussion of the mirage observation zone is attached.
文摘The studied subject is about subsidence coefficient of mirages and dynamic storage volume of Karstic springs in Khorram Abad in West of Iran. Subsidence coefficient indicates ability of groundwater discharge and hydrologic properties of the environment;meaning effective porosity and transfer coefficient of springs. In general, in developed Karstic zones, each direct line of subsidence curve indicates a discharge regime. Obtained results from the study show that subsidence branch of Golestan, Motahari, Niloofar (changaei), Navekech, Dore Robat mirages have subsidence coefficient with mild slope and low value, which demonstrate passage of water through a seams system at the karst springs. Q and whirlpool stone mirages have two subsidence coefficients, which indicate passage of water through two seam systems in Karstic environment of springs. According to obtained results, process of changes in subsidence branch in these mirages has had at the first a mild slope and low discharge coefficient and in continue, its discharge would be declined with sharper slope and high discharge coefficient. In order to estimate dynamic storage volume of springs, MAILET general equation is applied, which is suitable for subsidence branch of hydrographs of centralized springs discharge. Following, dynamic storage volume of studied springs is analyzed and obtained results are presented in this study respectively.
基金partly supported by RFBR-JSPS collaboration program (RFBR Grant 14-02-92107)
文摘In the far field of the intensity distribution of the beam delivered by a two-stage transient–collisional excitation X-ray laser(XRL), a non-expected interference pattern that is stable from shot to shot has been discovered. It is demonstrated that the interference is caused by the emergence of an imaginary source in the amplifying plasma, which is phase matched to the radiation of the generator. The observed phenomenon is called an X-ray coherent mirage. To explain the obtained results, a new theoretical approach is developed. The basic essential conditions for formation of the X-ray mirage are formulated, and possible applications are discussed. This paper details the experiments, including the formulation of the necessary and sufficient conditions for formation of the X-ray mirage, and possible applications are discussed.
