科技创新是一项艰巨且需付出大量劳动的工作。在TRIZ理论产生以前,许多科技创新由于缺乏正确的创新理念以及科学的理论方法的指导,致使创新带有很大的偶然性与随机性。1946年由前苏联专家阿奇舒勒(Altshuller)创立的创新问题解决理论(Th...科技创新是一项艰巨且需付出大量劳动的工作。在TRIZ理论产生以前,许多科技创新由于缺乏正确的创新理念以及科学的理论方法的指导,致使创新带有很大的偶然性与随机性。1946年由前苏联专家阿奇舒勒(Altshuller)创立的创新问题解决理论(Theocracy of Inventive problem solving—TRIZ)是一种全新的创新性问题解决方法指导性理论。展开更多
There are many cracked concrete structures worldwide. Although there have been numerous efforts to eliminate cracks, some cracks are very harmful and should be repaired as soon as possible. On the other hand, some cra...There are many cracked concrete structures worldwide. Although there have been numerous efforts to eliminate cracks, some cracks are very harmful and should be repaired as soon as possible. On the other hand, some cracks are almost harmless. So, a good guideline regarding how to deal with cracks in concrete structures is needed. In this guideline, the practical investigation, repair and strengthening method of cracked concrete structures is discussed. And the detecting subjects are cracks generated immediately after casting and during the service time. This guideline targets on the owners （including managers） of concrete structure and the engineers working for the maintenance of concrete structure. JCI （Japan Concrete Institute） published first version of ＂Practical Guideline for Investigation and Repair of Cracked Concrete Structures＂ in 1980, and then the fourth version titled ＂Practical Guideline for Investigation, Repair and Strengthening of Cracked Concrete Structures--2009＂ was published. This guideline is very practical when cracks are observed in existing concrete structures, in any other countries as well as in Japan. These three authors led the establishment of this guideline.展开更多
As we are in the knowledge economy, the main purpose of this research is to define the value of relational capital by measuring it with an innovative model. To this end, this paper will explain the meaning of intellec...As we are in the knowledge economy, the main purpose of this research is to define the value of relational capital by measuring it with an innovative model. To this end, this paper will explain the meaning of intellectual capital （human capital, structural capital, and relational capital） in the field of knowledge economy and what relational capital is and how we can measure its value. The research is qualitative in nature and was developed through the study of the international literature. The research presents some theoretical evidences that permit defining a method for the evaluation of relational capital. In this direction, the above method will need to have some integration in the future research. Moreover, this approach should consider some empirical evidences to establish the practical value of the method. In fact, the method presented encourages debate and a critical attitude towards the evaluations of relational capital and intellectual capital.展开更多
The influence of crystallographic orientation on the void growth in FCC crystals was numerically simulated with 3D crystal plasticity finite element by using a 3D unit cell including a spherical void, and the rate-dep...The influence of crystallographic orientation on the void growth in FCC crystals was numerically simulated with 3D crystal plasticity finite element by using a 3D unit cell including a spherical void, and the rate-dependent crystal plasticity theory was implemented as a user material subroutine. The results of the simulations show that crystallographic orientation has significant influence on the growth behavior of the void. Different active slip systems of the regions around the void cause the discontinuity in lattice rotation around the void, and the corner-like region is formed. In the case of the void located at grain boundary, large heterogeneous deformation occurs between the two grains, and the equivalent plastic deformation along grain boundary near the void in the case of θ=45^o （θ is the angle between grain boundary direction and X-axis） is larger than the others. Large difference of orientation factor of the two grains leads to large equivalent plastic deformation along grain boundary, and the unit cell is more likely to fail by intergranular fracture.展开更多
Utilitarianism is the branch of philosophy that studies the usefulness of an idea. Among the possible gains and losses, the balance must be positive to reach the intended utility. Criminal law is the most repressive b...Utilitarianism is the branch of philosophy that studies the usefulness of an idea. Among the possible gains and losses, the balance must be positive to reach the intended utility. Criminal law is the most repressive branch of legal system and therefore should be applied sparingly by the state. Its usefulness should be the protection of legal interests and minimal restriction of personal liberty. The lawmaker should seek the best way to achieve this utility with the choice of the most relevant legal interests and less repressive means before appealing to the criminal law. The legal interests protected by criminal law must be the most important ones for a social life in harmony and prohibited behaviors must be injurious or dangerous to those legal interests. The Rule of Law does not authorize criminal prohibitions without a minimum limit that allows citizens to behave according to their wishes, provided that does not harm the interests of other people. This is the calculation that legislator, judge, and interpreter should seek： more protection and less restriction to citizens.展开更多
Based on patent cooperation data,this study used a range of city network analysis approaches in order to explore the structure of the Chinese city network which is driven by technological knowledge flows.The results r...Based on patent cooperation data,this study used a range of city network analysis approaches in order to explore the structure of the Chinese city network which is driven by technological knowledge flows.The results revealed the spatial structure,composition structure,hierarchical structure,group structure,and control structure of Chinese city network,as well as its dynamic factors.The major findings are:1) the spatial pattern presents a diamond structure,in which Wuhan is the central city;2) although the invention patent knowledge network is the main part of the broader inter-city innovative cooperation network,it is weaker than the utility model patent;3) as the senior level cities,Beijing,Shanghai and the cities in the Zhujiang(Pearl) River Delta Region show a strong capability of both spreading and controlling technological knowledge;4) whilst a national technology alliance has preliminarily formed,regional alliances have not been adequately established;5) even though the cooperation level amongst weak connection cities is not high,such cities still play an important role in the network as a result of their location within ′structural holes′ in the network;and 6) the major driving forces facilitating inter-city technological cooperation are geographical proximity,hierarchical proximity and technological proximity.展开更多
The interspecific interactions between the rotifer Brachionus plicatilis and two harmful algal blooms(HAB) species were investigated experimentally by single culture method. B. plicatilis population and the growth of ...The interspecific interactions between the rotifer Brachionus plicatilis and two harmful algal blooms(HAB) species were investigated experimentally by single culture method. B. plicatilis population and the growth of the two algae were compared at different algal cell densities. The results demonstrated that the B. plicatilis obtained sufficient nutrition from Prorocentrum donghaiense to support net population increase. With exposure to 2.5×104 cells mL-1 of P. donghaiense,the number of B. plicatilis increased faster than it did when exposed to other four algal densities(5,10,15 and 20 ×104 cells mL-1),and the increase rate of B. plicatilis population(r) at this algal density was 0.104 ± 0.015 r d-1. Cell densities of P. donghaiense decreased due to the grazing of B. plicatilis. In contrast,Heterosigma akashiwo had an adverse effect on B. plicatilis population and its growth was largely unaffected by rotifer grazing. In this case,B. plicatilis population decreased and H. akashiwo grew at a rate similar to that of the control.展开更多
The method proposed in this paper is based on the fact that the damage in different types of structural members has distinctive influence on the structural stiffness. The intrinsic mechanical property of the structure...The method proposed in this paper is based on the fact that the damage in different types of structural members has distinctive influence on the structural stiffness. The intrinsic mechanical property of the structure is tapped and fully utilized for damage detection. The simplified model of the flexibility of frames treats the individual storeys as springs in series and the frame as an equivalent column. It fully considers the main deformation of all beams and columns in the frame. The deformation property of the simplified model accorded well with that of the actual frame model. The obtained increment of lateral displacement change (IOLDC) at the storey level was found to be very sensitive to the local damage in the frame. A damage detection method is pro- posed using the IOLDCs as the damage identification parameters. Numerical examples demonstrate the potential applicability of this method.展开更多
The paper proposes a novel algorithm to get the encryption matrix. Firstly, a chaotic sequence generated by Chebyshev chaotic neural networks is converted into a series of low-order integer matrices from which availab...The paper proposes a novel algorithm to get the encryption matrix. Firstly, a chaotic sequence generated by Chebyshev chaotic neural networks is converted into a series of low-order integer matrices from which available encryption matrices are selected. Then, a higher order encryption matrix relating real world application is constructed by means of tensor production method based on selected encryption matrices. The results show that the proposed algorithm can produce a "one-time pad cipher" encryption matrix with high security; and the encryption results have good chaos and auto-correlation with the natural frequency of the plaintext being hidden and homogenized.展开更多
objective： to study the problem oriented （PBL） teaching method application in surgery theory teaching effect. Methods： according to the student id number of single and double the surgical theory study stage of the...objective： to study the problem oriented （PBL） teaching method application in surgery theory teaching effect. Methods： according to the student id number of single and double the surgical theory study stage of the 160 cases of medical students divided into two groups, the number into the control group （80 cases）, double number into the experimental group （80 cases）, traditional teaching method and PBL teaching method, respectively with the method of questionnaire survey to evaluate the two teaching methods. Results： after the introduction of PBL method in the experimental teaching, the students＇ classroom situation, knowledge situation, learning efficiency index score significantly higher than the control group, and the ability training all indicators were significantly higher than that of control group （P 〈 0.05）. Conclusion： the introduction of PBL in surgery theory teaching method, the feasibility of high, can provide a good decision for surgical theory teaching.展开更多
文摘科技创新是一项艰巨且需付出大量劳动的工作。在TRIZ理论产生以前,许多科技创新由于缺乏正确的创新理念以及科学的理论方法的指导,致使创新带有很大的偶然性与随机性。1946年由前苏联专家阿奇舒勒(Altshuller)创立的创新问题解决理论(Theocracy of Inventive problem solving—TRIZ)是一种全新的创新性问题解决方法指导性理论。
文摘There are many cracked concrete structures worldwide. Although there have been numerous efforts to eliminate cracks, some cracks are very harmful and should be repaired as soon as possible. On the other hand, some cracks are almost harmless. So, a good guideline regarding how to deal with cracks in concrete structures is needed. In this guideline, the practical investigation, repair and strengthening method of cracked concrete structures is discussed. And the detecting subjects are cracks generated immediately after casting and during the service time. This guideline targets on the owners （including managers） of concrete structure and the engineers working for the maintenance of concrete structure. JCI （Japan Concrete Institute） published first version of ＂Practical Guideline for Investigation and Repair of Cracked Concrete Structures＂ in 1980, and then the fourth version titled ＂Practical Guideline for Investigation, Repair and Strengthening of Cracked Concrete Structures--2009＂ was published. This guideline is very practical when cracks are observed in existing concrete structures, in any other countries as well as in Japan. These three authors led the establishment of this guideline.
文摘As we are in the knowledge economy, the main purpose of this research is to define the value of relational capital by measuring it with an innovative model. To this end, this paper will explain the meaning of intellectual capital （human capital, structural capital, and relational capital） in the field of knowledge economy and what relational capital is and how we can measure its value. The research is qualitative in nature and was developed through the study of the international literature. The research presents some theoretical evidences that permit defining a method for the evaluation of relational capital. In this direction, the above method will need to have some integration in the future research. Moreover, this approach should consider some empirical evidences to establish the practical value of the method. In fact, the method presented encourages debate and a critical attitude towards the evaluations of relational capital and intellectual capital.
基金Project(2005CB623706) supported by the Major State Basic Research Development Program of China
文摘The influence of crystallographic orientation on the void growth in FCC crystals was numerically simulated with 3D crystal plasticity finite element by using a 3D unit cell including a spherical void, and the rate-dependent crystal plasticity theory was implemented as a user material subroutine. The results of the simulations show that crystallographic orientation has significant influence on the growth behavior of the void. Different active slip systems of the regions around the void cause the discontinuity in lattice rotation around the void, and the corner-like region is formed. In the case of the void located at grain boundary, large heterogeneous deformation occurs between the two grains, and the equivalent plastic deformation along grain boundary near the void in the case of θ=45^o （θ is the angle between grain boundary direction and X-axis） is larger than the others. Large difference of orientation factor of the two grains leads to large equivalent plastic deformation along grain boundary, and the unit cell is more likely to fail by intergranular fracture.
文摘Utilitarianism is the branch of philosophy that studies the usefulness of an idea. Among the possible gains and losses, the balance must be positive to reach the intended utility. Criminal law is the most repressive branch of legal system and therefore should be applied sparingly by the state. Its usefulness should be the protection of legal interests and minimal restriction of personal liberty. The lawmaker should seek the best way to achieve this utility with the choice of the most relevant legal interests and less repressive means before appealing to the criminal law. The legal interests protected by criminal law must be the most important ones for a social life in harmony and prohibited behaviors must be injurious or dangerous to those legal interests. The Rule of Law does not authorize criminal prohibitions without a minimum limit that allows citizens to behave according to their wishes, provided that does not harm the interests of other people. This is the calculation that legislator, judge, and interpreter should seek： more protection and less restriction to citizens.
基金Under the auspices of Major Project of National Social Science Foundation of China(No.13&ZD027)National Natural Science Foundation of China(No.41201128,71433008)
文摘Based on patent cooperation data,this study used a range of city network analysis approaches in order to explore the structure of the Chinese city network which is driven by technological knowledge flows.The results revealed the spatial structure,composition structure,hierarchical structure,group structure,and control structure of Chinese city network,as well as its dynamic factors.The major findings are:1) the spatial pattern presents a diamond structure,in which Wuhan is the central city;2) although the invention patent knowledge network is the main part of the broader inter-city innovative cooperation network,it is weaker than the utility model patent;3) as the senior level cities,Beijing,Shanghai and the cities in the Zhujiang(Pearl) River Delta Region show a strong capability of both spreading and controlling technological knowledge;4) whilst a national technology alliance has preliminarily formed,regional alliances have not been adequately established;5) even though the cooperation level amongst weak connection cities is not high,such cities still play an important role in the network as a result of their location within ′structural holes′ in the network;and 6) the major driving forces facilitating inter-city technological cooperation are geographical proximity,hierarchical proximity and technological proximity.
基金supported by the National Natural Sci-ence Foundation of China under No. 30270258the pro-gram for New Century Excellent Talent in University under No. NCET-05-0597the Natural Science Foundation of Ningbo University under No. RCL2008002 and XK0715048.
文摘The interspecific interactions between the rotifer Brachionus plicatilis and two harmful algal blooms(HAB) species were investigated experimentally by single culture method. B. plicatilis population and the growth of the two algae were compared at different algal cell densities. The results demonstrated that the B. plicatilis obtained sufficient nutrition from Prorocentrum donghaiense to support net population increase. With exposure to 2.5×104 cells mL-1 of P. donghaiense,the number of B. plicatilis increased faster than it did when exposed to other four algal densities(5,10,15 and 20 ×104 cells mL-1),and the increase rate of B. plicatilis population(r) at this algal density was 0.104 ± 0.015 r d-1. Cell densities of P. donghaiense decreased due to the grazing of B. plicatilis. In contrast,Heterosigma akashiwo had an adverse effect on B. plicatilis population and its growth was largely unaffected by rotifer grazing. In this case,B. plicatilis population decreased and H. akashiwo grew at a rate similar to that of the control.
文摘The method proposed in this paper is based on the fact that the damage in different types of structural members has distinctive influence on the structural stiffness. The intrinsic mechanical property of the structure is tapped and fully utilized for damage detection. The simplified model of the flexibility of frames treats the individual storeys as springs in series and the frame as an equivalent column. It fully considers the main deformation of all beams and columns in the frame. The deformation property of the simplified model accorded well with that of the actual frame model. The obtained increment of lateral displacement change (IOLDC) at the storey level was found to be very sensitive to the local damage in the frame. A damage detection method is pro- posed using the IOLDCs as the damage identification parameters. Numerical examples demonstrate the potential applicability of this method.
基金Supported by the National Natural Science Foundation of China (No. 61173036)
文摘The paper proposes a novel algorithm to get the encryption matrix. Firstly, a chaotic sequence generated by Chebyshev chaotic neural networks is converted into a series of low-order integer matrices from which available encryption matrices are selected. Then, a higher order encryption matrix relating real world application is constructed by means of tensor production method based on selected encryption matrices. The results show that the proposed algorithm can produce a "one-time pad cipher" encryption matrix with high security; and the encryption results have good chaos and auto-correlation with the natural frequency of the plaintext being hidden and homogenized.
文摘objective： to study the problem oriented （PBL） teaching method application in surgery theory teaching effect. Methods： according to the student id number of single and double the surgical theory study stage of the 160 cases of medical students divided into two groups, the number into the control group （80 cases）, double number into the experimental group （80 cases）, traditional teaching method and PBL teaching method, respectively with the method of questionnaire survey to evaluate the two teaching methods. Results： after the introduction of PBL method in the experimental teaching, the students＇ classroom situation, knowledge situation, learning efficiency index score significantly higher than the control group, and the ability training all indicators were significantly higher than that of control group （P 〈 0.05）. Conclusion： the introduction of PBL in surgery theory teaching method, the feasibility of high, can provide a good decision for surgical theory teaching.
