[Objective] In order to find the pathogenic microorganisms suitable for biological control of filth flies, the pathogenic microorganism was isolated from the dead fly, Boettcherisca peregrine. [Method] The conidia and...[Objective] In order to find the pathogenic microorganisms suitable for biological control of filth flies, the pathogenic microorganism was isolated from the dead fly, Boettcherisca peregrine. [Method] The conidia and mycelia were observed by optical microscope. The pathogenic microorganism was identified on the basis of its culture characters and the optical morphologies of the conidia and mycelia, and its biological characteristics and pathogenicity were preliminarily studied. [Result] The pathogenic microorganism isolated from the dead fly was a new strain of Verticillium lecanii. The new strain of V. lecanii was numbered as KMZW-1. The colonies of V. lecanii KMZW-1 grew fastest on potato dextrose agar medium （PDA） at 29 ℃ and pH 6.0. The LC50 of its spore suspension to the adults of B. peregrine, Lucilia sericata, Musca domestic, Piophila casei and Drosophila melanogaster were 9.50×10^5, 4.58×10^7, 4.06×10^7, 4.10×10^3 and 1.05×10^7 conidia/ml, respectively. The LT50 were 6.86, 8.17, 8.16, 8.12 and 3.22 d, respectively. [Conclusion] V. lecanii KMZW-1 is an active pathogenic microorganism to control the adults of five fly species.展开更多
During a dive peregrine falcons can reach velocities of more than 320 km/h and makes themselves the fastest animals in the world. The aerodynamic mechanisms involved are not fully understood yet and the search for a c...During a dive peregrine falcons can reach velocities of more than 320 km/h and makes themselves the fastest animals in the world. The aerodynamic mechanisms involved are not fully understood yet and the search for a conclusive answer to this fact motivates the three-dimensional (3-D) flow study. Especially the cupped wing configuration which is a unique feature of the wing shape in falcon peregrine dive is our focus herein. In particular, the flow in the gap between the main body and the cupped wing is studied to understand how this flow interacts with the body and to what extend it affects the integral forces of lift and drag. Characteristic shapes of the wings while diving are studied with regard to their aerodynamics using computational fluid dynamics (CFD). The results of the numerical simulations via ICEM CFD and OpenFOAM show predominant flow structures around the body surface and in the wake of the falcon model such as a pair of body vortices and tip vortices. The drag for the cupped wing profile is reduced in relation to the configuration of opened wings (without cupped-like profile) while lift is increased. The purpose of this study is primarily the basic research of the aerodynamic mechanisms during the falcon’s diving flight. The results could be important for maintaining good maneuverability at high speeds in the aviation sector.展开更多
The microsatellite analysis of DNA plays an important role in studying the population genetics such as population structure, genetic variability and diversity, phylogenetic relationships of wild population of endanger...The microsatellite analysis of DNA plays an important role in studying the population genetics such as population structure, genetic variability and diversity, phylogenetic relationships of wild population of endangered species. The main aim of this study was the estimation of ten microsatellite markers variability in the F. cherrug and F. peregrinus populations. We investigated genetic diversity and structure of populations by using non-invasive genetic identification of individuals to characterize populations of raptors living in the captivity and wild in the Czech Republic during the breeding seasons 2009 and 2010. Within Falco cherrug, significant moderate genetic differentiation （FsT） was observed between Falco cherrug wild and captive. This means that there could be a little differentiation between the wild and the captive populations caused by Falco cherrug subspecies origin or hybridization in the captivity. The absence of significant genetic differentiation between Falco peregrinus wild and captive may be caused by the influence of reintroduction the captive populations in the past. Whereas one breeding population ofFalco peregrinus （Kokorinsko2 2010） was clustered by UPGMA dendrogram into the individual group, we assumed this population like independent, maybe not influenced by other groups. Moreover, a larger sample size would be necessary to confirm the hypothesis.展开更多
We study the Peregrine rogue waves within the framework of Derivative Nonlinear Schrödinger equation, which is used to describe the propagation of Alfven waves in plasma physics and sub-picosecond or femtosecond ...We study the Peregrine rogue waves within the framework of Derivative Nonlinear Schrödinger equation, which is used to describe the propagation of Alfven waves in plasma physics and sub-picosecond or femtosecond pulses in nonlinear optics. The interaction and degeneration of two soliton-like solutions and its relations for the breather solution have been analyzed. The Peregrine rogue waves have been considered from the two kinds of formation processes: it can be generated through the limitation of the infinitely large period of the breather solutions, and it can be interpreted as the soliton-like solutions with different polarities. As a special example, a special Peregrine rogue wave is generated by a breather solution and phase solution, which is given by the trivial seed (zero solution).展开更多
We construct here explicitly new deformations of the Peregrine breather of order 5 with 8 real parameters.This gives new families of quasi-rational solutions of the NLS equation and thus one can describe in a more pre...We construct here explicitly new deformations of the Peregrine breather of order 5 with 8 real parameters.This gives new families of quasi-rational solutions of the NLS equation and thus one can describe in a more precise way the phenomena of appearance of multi rogue waves. With this method, we construct new patterns of different types of rogue waves. We get at the same time, the triangular configurations as well as rings isolated. Moreover, one sees appearing for certain values of the parameters, new configurations of concentric rings.展开更多
The Peregrine breather of order eleven（P_（11） breather） solution to the focusing one-dimensional nonlinear Schrdinger equation（NLS） is explicitly constructed here. Deformations of the Peregrine breather of order...The Peregrine breather of order eleven（P_（11） breather） solution to the focusing one-dimensional nonlinear Schrdinger equation（NLS） is explicitly constructed here. Deformations of the Peregrine breather of order 11 with 20 real parameters solutions to the NLS equation are also given： when all parameters are equal to 0 we recover the famous P_（11） breather. We obtain new families of quasi-rational solutions to the NLS equation in terms of explicit quotients of polynomials of degree 132 in x and t by a product of an exponential depending on t. We study these solutions by giving patterns of their modulus in the（x; t） plane, in function of the different parameters.展开更多
Missionaries were a major force of western peregrination to China in modern times.Confucianism,Taoism,Buddhism and various folk deities,as the main competitors of Christianity,were the two perspectives from which west...Missionaries were a major force of western peregrination to China in modern times.Confucianism,Taoism,Buddhism and various folk deities,as the main competitors of Christianity,were the two perspectives from which western peregrinators(especially missionaries)observed the religious image of China,and the two dimensions from which peregrinators described the religious image of China.Missionaries in China paid more attention to“idolatry”in Chinese Confucianism,Buddhism and Taoism,while peregrinators noticed more popular phenomena of folk deities and various superstitions.The heretical religion of“idolatry”and feudal superstition were the two main cognitive sources for peregrinators to construct the religious image of modern China,and jointly shaped the religious image of modern China.展开更多
Since the middle and late 18th century,the purpose of western peregrinators to China had been in a gradual process from geological survey,to commercial route exploration,commercial development,and then the struggle to...Since the middle and late 18th century,the purpose of western peregrinators to China had been in a gradual process from geological survey,to commercial route exploration,commercial development,and then the struggle to divide power and sphere of influence.The purpose,mode,theme and narrative strategy of missionaries,scientific explorers,business travelers and pilgrims traveling in China were the main elements that affected the representation,construction and production of the image of modern China,as well as the main factors that formed the differentiation of the image of China.展开更多
Since modern times,the West had gradually measured the standard and image of civilization of a country or a nation from the trinity of material,spirit and morality.Peregrinators to China mostly used such words as“hyp...Since modern times,the West had gradually measured the standard and image of civilization of a country or a nation from the trinity of material,spirit and morality.Peregrinators to China mostly used such words as“hypocritical”,“dirty”,“indifferent”,“selfish”,“cruel”and“insensitive”to represent the moral and spiritual image of Chinese people.Peregrinators to China in the 19th century constructed a depraved and corrupt moral image of China in a three-dimensional perspective from individual moral depravity to overall despicability of the nation.展开更多
基金Supported by Yunnan Provincial Department of Education,Fund Projects of Young Teachers(06y15SB)Yunnan Science and Technology Project(2006NG16)~~
文摘[Objective] In order to find the pathogenic microorganisms suitable for biological control of filth flies, the pathogenic microorganism was isolated from the dead fly, Boettcherisca peregrine. [Method] The conidia and mycelia were observed by optical microscope. The pathogenic microorganism was identified on the basis of its culture characters and the optical morphologies of the conidia and mycelia, and its biological characteristics and pathogenicity were preliminarily studied. [Result] The pathogenic microorganism isolated from the dead fly was a new strain of Verticillium lecanii. The new strain of V. lecanii was numbered as KMZW-1. The colonies of V. lecanii KMZW-1 grew fastest on potato dextrose agar medium （PDA） at 29 ℃ and pH 6.0. The LC50 of its spore suspension to the adults of B. peregrine, Lucilia sericata, Musca domestic, Piophila casei and Drosophila melanogaster were 9.50×10^5, 4.58×10^7, 4.06×10^7, 4.10×10^3 and 1.05×10^7 conidia/ml, respectively. The LT50 were 6.86, 8.17, 8.16, 8.12 and 3.22 d, respectively. [Conclusion] V. lecanii KMZW-1 is an active pathogenic microorganism to control the adults of five fly species.
文摘During a dive peregrine falcons can reach velocities of more than 320 km/h and makes themselves the fastest animals in the world. The aerodynamic mechanisms involved are not fully understood yet and the search for a conclusive answer to this fact motivates the three-dimensional (3-D) flow study. Especially the cupped wing configuration which is a unique feature of the wing shape in falcon peregrine dive is our focus herein. In particular, the flow in the gap between the main body and the cupped wing is studied to understand how this flow interacts with the body and to what extend it affects the integral forces of lift and drag. Characteristic shapes of the wings while diving are studied with regard to their aerodynamics using computational fluid dynamics (CFD). The results of the numerical simulations via ICEM CFD and OpenFOAM show predominant flow structures around the body surface and in the wake of the falcon model such as a pair of body vortices and tip vortices. The drag for the cupped wing profile is reduced in relation to the configuration of opened wings (without cupped-like profile) while lift is increased. The purpose of this study is primarily the basic research of the aerodynamic mechanisms during the falcon’s diving flight. The results could be important for maintaining good maneuverability at high speeds in the aviation sector.
文摘The microsatellite analysis of DNA plays an important role in studying the population genetics such as population structure, genetic variability and diversity, phylogenetic relationships of wild population of endangered species. The main aim of this study was the estimation of ten microsatellite markers variability in the F. cherrug and F. peregrinus populations. We investigated genetic diversity and structure of populations by using non-invasive genetic identification of individuals to characterize populations of raptors living in the captivity and wild in the Czech Republic during the breeding seasons 2009 and 2010. Within Falco cherrug, significant moderate genetic differentiation （FsT） was observed between Falco cherrug wild and captive. This means that there could be a little differentiation between the wild and the captive populations caused by Falco cherrug subspecies origin or hybridization in the captivity. The absence of significant genetic differentiation between Falco peregrinus wild and captive may be caused by the influence of reintroduction the captive populations in the past. Whereas one breeding population ofFalco peregrinus （Kokorinsko2 2010） was clustered by UPGMA dendrogram into the individual group, we assumed this population like independent, maybe not influenced by other groups. Moreover, a larger sample size would be necessary to confirm the hypothesis.
文摘We study the Peregrine rogue waves within the framework of Derivative Nonlinear Schrödinger equation, which is used to describe the propagation of Alfven waves in plasma physics and sub-picosecond or femtosecond pulses in nonlinear optics. The interaction and degeneration of two soliton-like solutions and its relations for the breather solution have been analyzed. The Peregrine rogue waves have been considered from the two kinds of formation processes: it can be generated through the limitation of the infinitely large period of the breather solutions, and it can be interpreted as the soliton-like solutions with different polarities. As a special example, a special Peregrine rogue wave is generated by a breather solution and phase solution, which is given by the trivial seed (zero solution).
文摘We construct here explicitly new deformations of the Peregrine breather of order 5 with 8 real parameters.This gives new families of quasi-rational solutions of the NLS equation and thus one can describe in a more precise way the phenomena of appearance of multi rogue waves. With this method, we construct new patterns of different types of rogue waves. We get at the same time, the triangular configurations as well as rings isolated. Moreover, one sees appearing for certain values of the parameters, new configurations of concentric rings.
文摘The Peregrine breather of order eleven（P_（11） breather） solution to the focusing one-dimensional nonlinear Schrdinger equation（NLS） is explicitly constructed here. Deformations of the Peregrine breather of order 11 with 20 real parameters solutions to the NLS equation are also given： when all parameters are equal to 0 we recover the famous P_（11） breather. We obtain new families of quasi-rational solutions to the NLS equation in terms of explicit quotients of polynomials of degree 132 in x and t by a product of an exponential depending on t. We study these solutions by giving patterns of their modulus in the（x; t） plane, in function of the different parameters.
基金Sponsored by“Twelfth Five-year Plan”Program of Guangdong Provincial Philosophy and Social Sciences(GD15XLS07)Science and Technology Innovation Research Team Program of Zhaoqing University(2021)Tourism Management Key Discipline Construction Program of Zhaoqing University(2022).
文摘Missionaries were a major force of western peregrination to China in modern times.Confucianism,Taoism,Buddhism and various folk deities,as the main competitors of Christianity,were the two perspectives from which western peregrinators(especially missionaries)observed the religious image of China,and the two dimensions from which peregrinators described the religious image of China.Missionaries in China paid more attention to“idolatry”in Chinese Confucianism,Buddhism and Taoism,while peregrinators noticed more popular phenomena of folk deities and various superstitions.The heretical religion of“idolatry”and feudal superstition were the two main cognitive sources for peregrinators to construct the religious image of modern China,and jointly shaped the religious image of modern China.
基金Sponsored by“Twelfth Five-year Plan”Program of Guangdong Provincial Philosophy and Social Sciences(GD15XLS07)Science and Technology Innovation Research Team Program of Zhaoqing University(2021)Tourism Management Key Discipline Construction Program of Zhaoqing University(2022)。
文摘Since the middle and late 18th century,the purpose of western peregrinators to China had been in a gradual process from geological survey,to commercial route exploration,commercial development,and then the struggle to divide power and sphere of influence.The purpose,mode,theme and narrative strategy of missionaries,scientific explorers,business travelers and pilgrims traveling in China were the main elements that affected the representation,construction and production of the image of modern China,as well as the main factors that formed the differentiation of the image of China.
基金Sponsored by“Twelfth Five-year Plan”Program of Guangdong Provincial Philosophy and Social Sciences(GD15XLS07)Science and Technology Innovation Research Team Program of Zhaoqing University(2021)Tourism Management Key Discipline Construction Program of Zhaoqing University(2022)。
文摘Since modern times,the West had gradually measured the standard and image of civilization of a country or a nation from the trinity of material,spirit and morality.Peregrinators to China mostly used such words as“hypocritical”,“dirty”,“indifferent”,“selfish”,“cruel”and“insensitive”to represent the moral and spiritual image of Chinese people.Peregrinators to China in the 19th century constructed a depraved and corrupt moral image of China in a three-dimensional perspective from individual moral depravity to overall despicability of the nation.
