In the present paper we investigate linear elastic systems with damping in Hilbert spaces, where A and B ars unbounded positive definite linear operators. We have obtained the most fundamental results for the holomorp...In the present paper we investigate linear elastic systems with damping in Hilbert spaces, where A and B ars unbounded positive definite linear operators. We have obtained the most fundamental results for the holomorphic property and exponential stability of the semigroups associated with these systems via inclusion relation of the domains of A and B.展开更多
In May 1993, the State Council promulgated ProvisionalRegulations Regarding the Issuing of Stocks and theAdministration of Stock Dealings. However, the Stock Act isstill in the process of drafting. This paper intends ...In May 1993, the State Council promulgated ProvisionalRegulations Regarding the Issuing of Stocks and theAdministration of Stock Dealings. However, the Stock Act isstill in the process of drafting. This paper intends to discuss thefollowing three problems concerning the securities legislation.展开更多
In this paper, we discuss some characteristic properties of partial abstract data type (PADT) and show the diffrence between PADT and abstract data type (ADT) in specification of programming language. Finally, we clar...In this paper, we discuss some characteristic properties of partial abstract data type (PADT) and show the diffrence between PADT and abstract data type (ADT) in specification of programming language. Finally, we clarify that PADT is necessary in programming language description.展开更多
The present paper investigates several problems for unsymmetrically lateral instability of rectangular plates by the energy method. In the text we discuss the minimum critical load of rectangular plates which possess ...The present paper investigates several problems for unsymmetrically lateral instability of rectangular plates by the energy method. In the text we discuss the minimum critical load of rectangular plates which possess the unsymmetrical supporters and to which the lateral buckling occurs unsymmetrically under a concentrated force, uniformly distributed load and the concentrated couples respectively.展开更多
Ⅰ. RELEVANT CONCEPTS TO BE CLARIFIED When we talk about S&T policies, there are two concepts involved in the policy-making: one is S&T expenditure and the other is R&D input. The implications of the two a...Ⅰ. RELEVANT CONCEPTS TO BE CLARIFIED When we talk about S&T policies, there are two concepts involved in the policy-making: one is S&T expenditure and the other is R&D input. The implications of the two are quite different. The former refers to all funds spent on S&T activities and the latter means the total expense used for a given project of systematic innovation. According展开更多
As a trans-disciplinary research subject jointly explored by different academic divisions of the CAS in an R&D program at the turn of two centuries, the origin of the Chinese nation contains some controversial and...As a trans-disciplinary research subject jointly explored by different academic divisions of the CAS in an R&D program at the turn of two centuries, the origin of the Chinese nation contains some controversial and antagonistic problems of theoretical importance in biology. This article gives its author’s viewpoints on the controversy’s significance and related theoretical problems.展开更多
In this paper,some problems of regression analysis in the meteorological application are discussed and main reasons for statistical inference failures are analysed.We may find the failure problems with diagnos- tic me...In this paper,some problems of regression analysis in the meteorological application are discussed and main reasons for statistical inference failures are analysed.We may find the failure problems with diagnos- tic method and solve them by different treatment.It has been proved that the treatment make the accuracy and stability of forecasting improved greatly.展开更多
I. Present SituationNingbo is the second largest city ofZhejiang Province and one of the 14 coastalcities which has been disignated for furtheropening up to the outside world. NingboCity is situated in the northeasten...I. Present SituationNingbo is the second largest city ofZhejiang Province and one of the 14 coastalcities which has been disignated for furtheropening up to the outside world. NingboCity is situated in the northeasten part ofZhejiang Province, with 5 counties and onecity under its jurisdiction (Qingxian,Fenghua, Ninghai, Xiangshan and展开更多
文摘In the present paper we investigate linear elastic systems with damping in Hilbert spaces, where A and B ars unbounded positive definite linear operators. We have obtained the most fundamental results for the holomorphic property and exponential stability of the semigroups associated with these systems via inclusion relation of the domains of A and B.
文摘In May 1993, the State Council promulgated ProvisionalRegulations Regarding the Issuing of Stocks and theAdministration of Stock Dealings. However, the Stock Act isstill in the process of drafting. This paper intends to discuss thefollowing three problems concerning the securities legislation.
基金The Project Supported by National Natural Science Foundation of China
文摘In this paper, we discuss some characteristic properties of partial abstract data type (PADT) and show the diffrence between PADT and abstract data type (ADT) in specification of programming language. Finally, we clarify that PADT is necessary in programming language description.
文摘The present paper investigates several problems for unsymmetrically lateral instability of rectangular plates by the energy method. In the text we discuss the minimum critical load of rectangular plates which possess the unsymmetrical supporters and to which the lateral buckling occurs unsymmetrically under a concentrated force, uniformly distributed load and the concentrated couples respectively.
文摘Ⅰ. RELEVANT CONCEPTS TO BE CLARIFIED When we talk about S&T policies, there are two concepts involved in the policy-making: one is S&T expenditure and the other is R&D input. The implications of the two are quite different. The former refers to all funds spent on S&T activities and the latter means the total expense used for a given project of systematic innovation. According
文摘As a trans-disciplinary research subject jointly explored by different academic divisions of the CAS in an R&D program at the turn of two centuries, the origin of the Chinese nation contains some controversial and antagonistic problems of theoretical importance in biology. This article gives its author’s viewpoints on the controversy’s significance and related theoretical problems.
文摘In this paper,some problems of regression analysis in the meteorological application are discussed and main reasons for statistical inference failures are analysed.We may find the failure problems with diagnos- tic method and solve them by different treatment.It has been proved that the treatment make the accuracy and stability of forecasting improved greatly.
文摘I. Present SituationNingbo is the second largest city ofZhejiang Province and one of the 14 coastalcities which has been disignated for furtheropening up to the outside world. NingboCity is situated in the northeasten part ofZhejiang Province, with 5 counties and onecity under its jurisdiction (Qingxian,Fenghua, Ninghai, Xiangshan and
