In the past, blast-resistant designs for structures were often constructed with massive type structural systems, which relied more on brute strength than on finesse to achieve the required blast resistance. However, s...In the past, blast-resistant designs for structures were often constructed with massive type structural systems, which relied more on brute strength than on finesse to achieve the required blast resistance. However, structures composed of COLD-FORMED steel components, such as sheet metal and metal studs, have shown great promise in providing blast resistance with the added benefits of low cost and ease of construction. Some examples of using such structures to provide containment for package handling facilities (PHF) are described in the paper for situations where blast containment is needed, such as a potential package bomb being discovered during the package vetting process. Results from tests and analytic data are used to illustrate aspects of design peculiar to such types of applications. Designs for specific capacities of PHF are described.展开更多
In this paper, we discuss the optimal insurance in the presence of background risk while the insured is ambiguity averse and there exists belief heterogeneity between the insured and the insurer. We give the optimal i...In this paper, we discuss the optimal insurance in the presence of background risk while the insured is ambiguity averse and there exists belief heterogeneity between the insured and the insurer. We give the optimal insurance contract when maxing the insured’s expected utility of his/her remaining wealth under the smooth ambiguity model and the heterogeneous belief form satisfying the MHR condition. We calculate the insurance premium by using generalized Wang’s premium and also introduce a series of stochastic orders proposed by [1] to describe the relationships among the insurable risk, background risk and ambiguity parameter. We obtain the deductible insurance is the optimal insurance while they meet specific dependence structures.展开更多
Transmission Electron Microscope (TEM) Technology was used to investigate the effect of 25,100 and 200 mg/kg copper on ultra-structure of root tip and leaf blade of wheat. Result showed that serious damage was found w...Transmission Electron Microscope (TEM) Technology was used to investigate the effect of 25,100 and 200 mg/kg copper on ultra-structure of root tip and leaf blade of wheat. Result showed that serious damage was found with Copper of 25,100 and 200 mg/kg. Plasmolysis,concentrated cytoplasm,chloroplast inflation,lamellar structure disturbance,capsule disappearance and disintegration,mitochondria structures ambiguity and vacuolization were all symptoms under Cu stress. There were positive correlation between concentration of coper stress and the degree of injury,and the degree of injury of copper were different in different organelles. Mitochondria were the most sensitive organelles,and there was patient difference in the same organelles of different parts.展开更多
To reveal invariant properties of human languages is one of the central goals of modern generative grammar.Hierarchical feature of sentence construction, one of the key notions in this regard, reflects one of the most...To reveal invariant properties of human languages is one of the central goals of modern generative grammar.Hierarchical feature of sentence construction, one of the key notions in this regard, reflects one of the most widely accepted invariant properties of human languages. However,researchers also challenge this point and argue that languages differ fundamentally from one another so that it is very hard to find any single structural property which they share. This paper revisits the evidence for the hierarchical structure of sentences from the principle of structure dependence in first and second language acquisition and argues that the recognition of hierarchical structure of sentences is essential to any linguistic exploration.展开更多
As a new product of the development of modern science and technology,the research and development of logistics robot has become the focus of social attention.Robot sorting and handling is the designated project of Jia...As a new product of the development of modern science and technology,the research and development of logistics robot has become the focus of social attention.Robot sorting and handling is the designated project of Jiangsu University Robot Competition.According to the requirements of the competition,this paper designs a kind of logistics robot trolley which can identify and grab materials according to a given path and transport them to a predetermined location.The mechanical structure design,driving motor selection and mechanical checking calculation of the car are mainly completed.According to the later experiments,the results show that the desired results can be achieved.展开更多
文摘In the past, blast-resistant designs for structures were often constructed with massive type structural systems, which relied more on brute strength than on finesse to achieve the required blast resistance. However, structures composed of COLD-FORMED steel components, such as sheet metal and metal studs, have shown great promise in providing blast resistance with the added benefits of low cost and ease of construction. Some examples of using such structures to provide containment for package handling facilities (PHF) are described in the paper for situations where blast containment is needed, such as a potential package bomb being discovered during the package vetting process. Results from tests and analytic data are used to illustrate aspects of design peculiar to such types of applications. Designs for specific capacities of PHF are described.
文摘In this paper, we discuss the optimal insurance in the presence of background risk while the insured is ambiguity averse and there exists belief heterogeneity between the insured and the insurer. We give the optimal insurance contract when maxing the insured’s expected utility of his/her remaining wealth under the smooth ambiguity model and the heterogeneous belief form satisfying the MHR condition. We calculate the insurance premium by using generalized Wang’s premium and also introduce a series of stochastic orders proposed by [1] to describe the relationships among the insurable risk, background risk and ambiguity parameter. We obtain the deductible insurance is the optimal insurance while they meet specific dependence structures.
基金Supported by Scientific and Technological Fund from China University of Mining and Technology (D200402)~~
文摘Transmission Electron Microscope (TEM) Technology was used to investigate the effect of 25,100 and 200 mg/kg copper on ultra-structure of root tip and leaf blade of wheat. Result showed that serious damage was found with Copper of 25,100 and 200 mg/kg. Plasmolysis,concentrated cytoplasm,chloroplast inflation,lamellar structure disturbance,capsule disappearance and disintegration,mitochondria structures ambiguity and vacuolization were all symptoms under Cu stress. There were positive correlation between concentration of coper stress and the degree of injury,and the degree of injury of copper were different in different organelles. Mitochondria were the most sensitive organelles,and there was patient difference in the same organelles of different parts.
文摘To reveal invariant properties of human languages is one of the central goals of modern generative grammar.Hierarchical feature of sentence construction, one of the key notions in this regard, reflects one of the most widely accepted invariant properties of human languages. However,researchers also challenge this point and argue that languages differ fundamentally from one another so that it is very hard to find any single structural property which they share. This paper revisits the evidence for the hierarchical structure of sentences from the principle of structure dependence in first and second language acquisition and argues that the recognition of hierarchical structure of sentences is essential to any linguistic exploration.
基金This paper is sponsored by the“Qinglan Project”of Jiangsu University,the General Natural Science Research Project of Jiangsu University(19KJD510005)Guangxi Key Laboratory of Automatic Testing Technology and Instruments will be open to fund in 2021(YQ21207)the Industry-University Cooperative Education Project of the Ministry of Education(201902168015)。
文摘As a new product of the development of modern science and technology,the research and development of logistics robot has become the focus of social attention.Robot sorting and handling is the designated project of Jiangsu University Robot Competition.According to the requirements of the competition,this paper designs a kind of logistics robot trolley which can identify and grab materials according to a given path and transport them to a predetermined location.The mechanical structure design,driving motor selection and mechanical checking calculation of the car are mainly completed.According to the later experiments,the results show that the desired results can be achieved.
