In this paper, some properties of the monotone set function defined by theChoquet integral are discussed. It is shown that several important structural characteristics of theoriginal set function, such as weak null-ad...In this paper, some properties of the monotone set function defined by theChoquet integral are discussed. It is shown that several important structural characteristics of theoriginal set function, such as weak null-additivity, strong order continuity, property (s) andpseudomelric generating property, etc., are preserved by the new set function. It is also shown thatC-integrability assumption is inevitable for the preservations of strong order continuous andpseudometric generating property.展开更多
This paper deals with a problem of application generation together with their Graphic User Interface （GUI）. Particularly, the source code generator based on dynamic frames was improved for more effective specificati...This paper deals with a problem of application generation together with their Graphic User Interface （GUI）. Particularly, the source code generator based on dynamic frames was improved for more effective specification of GUI. It＇s too demanding for the developers to have specification of the application that contain all physical coordinates and other details of buttons and other GUI elements. The developed solution for this problem is based on post-processing of generated source code using iterators for specifying coordinates and other values of graphic elements. The paper includes two examples of generating web applications and their GUI.展开更多
Objective： The aim of the study was to explore the application of 64-slice spiral computed tomography perfusion imaging （CTPI） in evaluating angiogenesis in human osteosarcoma. Methods： Twenty-six patients （18 ma...Objective： The aim of the study was to explore the application of 64-slice spiral computed tomography perfusion imaging （CTPI） in evaluating angiogenesis in human osteosarcoma. Methods： Twenty-six patients （18 males and 8 females ranging from 9 to 56 years old, with an average of 19 years） with osteosarcoma underwent 64-slice spiral CTPI. We analyzed the correlations of CTPI parameters including blood flow （BF）, blood volume （BV）, time to peak （TTP）, and permeability surface （PS） with the expression of markers of angiogenesis. Statistical analysis was performed with paired-samples t test, and Pearson correlation analysis was employed to investigate the correlations of CTPI parameters with microvessel density （MVD）. Results： Mean BF, BV, TTP, and PS values of osteosarcoma group were （46.6 ± 25.1） mL/100 g/min, （61.8 ± 29.5） mL/100 g, （122.9 ± 26.2） seconds, and （44.5 ± 14.6） mL/100 g/min, respectively. Those in the normal muscle group were （5.2 ± 6.6） mL/100 g/min, （9.6 ± 7.3） mL/100 g, （115.5 ± 33.1） seconds and （17.0 ± 29.3） mL/100 g/min, respectively. Osteosarcoma group showed higher BF, BV and PS compared with the normal muscle group （P = 0.000, P = 0.000, and P = 0.000, respectively）. However, no significant difference was found in TTP between osteosarcoma tissue and normal adjacent muscle tissue （P = 0.273）. BF, BV, and PS were positively correlated with MVD （r = 0.83, P = 0.000; r = 0.87, P = 0.000; and r = 0.63, P = 0.001, respectively）. No correlation was found between TTP and MVD （r = –0.02, P = 0.93）. Conclusion： CTPI is useful for assessing tumor vascularity of osteosarcoma and CTPI parameters are positively correlated with MVD.展开更多
By allowing routers to combine the received packets before forwarding them,network coding-based applications are susceptible to possible malicious pollution attacks.Existing solutions for counteracting this issue eith...By allowing routers to combine the received packets before forwarding them,network coding-based applications are susceptible to possible malicious pollution attacks.Existing solutions for counteracting this issue either incur inter-generation pollution attacks(among multiple generations)or suffer high computation/bandwidth overhead.Using a dynamic public key technique,we propose a novel homomorphic signature scheme for network coding for each generation authentication without updating the initial secret key used.As per this idea,the secret key is scrambled for each generation by using the generation identifier,and each packet can be fast signed using the scrambled secret key for the generation to which the packet belongs.The scheme not only can resist intra-generation pollution attacks effectively but also can efficiently prevent inter-generation pollution attacks.Further,the communication overhead of the scheme is small and independent of the size of the transmitting files.展开更多
A greenhouse pot experiment was conducted to study the effect of drought induced at different phenological stages on growth, biomass production and yield performance of grain amaranth Amaranthus cruentus G6. After eme...A greenhouse pot experiment was conducted to study the effect of drought induced at different phenological stages on growth, biomass production and yield performance of grain amaranth Amaranthus cruentus G6. After emergence seedlings were exposed to different soil water regimes： constant adequate moisture （W1） and drought （W2） throughout the growing period, drought initiated at crop inflorescence formation （W3）, drought condition during pre-inflorescence formation （W4） and treatment W5 where drought condition occurred in the period from the beginning of inflorescence formation to the beginning of flowering. Crop samples were taken at the maturity. The growth and yield performance of amaranth were assessed by measuring root length, stem height and inflorescence length, and by evaluating fresh and dry weight of plant parts, grain yield and harvest index. Drought stress initiated at different phenological stages affected the evaluated morphological parameters, assimilate allocation and grain yield. Drought throughout the growing period resulted in grain and biomass yield reduction for 51% and 50%, respectively. Water deficit during inflorescence formation appears to be critical growing stage influencing grain yield, while soil drying in the vegetative growth stages improve the assimilate allocation to the above-ground biomass and particularly to the grain.展开更多
Nowadays IPP＇s power plant construction is encouraged by the current deregulatory climate. The financing technique employed to implement these projects is often the project financing formula. Under such condition an ...Nowadays IPP＇s power plant construction is encouraged by the current deregulatory climate. The financing technique employed to implement these projects is often the project financing formula. Under such condition an investor consortium, usually foreigner plan, build, operate the power plant and sell the generated electricity to the host utility. The sale price is determined from the expected IPP＇s production cost, enhanced from the expected welfare obtainable by selling electricity. This paper proposes a methodology for linking the uncertainty of the future production cost with the price of the electricity generated by an IPP. This is a stochastic approach to the sale price definition problem, while usually conducted through a deterministic procedure.展开更多
A projected skill is adopted by use of the differential evolution (DE) algorithm to calculate a conditional nonlinear optimal perturbation (CNOP). The CNOP is the maximal value of a constrained optimization problem wi...A projected skill is adopted by use of the differential evolution (DE) algorithm to calculate a conditional nonlinear optimal perturbation (CNOP). The CNOP is the maximal value of a constrained optimization problem with a constraint condition, such as a ball constraint. The success of the DE algorithm lies in its ability to handle a non-differentiable and nonlinear cost function. In this study, the DE algorithm and the traditional optimization algorithms used to obtain the CNOPs are compared by analyzing a theoretical grassland ecosystem model and a dynamic global vegetation model. This study shows that the CNOPs generated by the DE algorithm are similar to those by the sequential quadratic programming (SQP) algorithm and the spectral projected gradients (SPG2) algorithm. If the cost function is non-differentiable, the CNOPs could also be caught with the DE algorithm. The numerical results suggest the DE algorithm can be employed to calculate the CNOP, especially when the cost function is non-differentiable.展开更多
文摘In this paper, some properties of the monotone set function defined by theChoquet integral are discussed. It is shown that several important structural characteristics of theoriginal set function, such as weak null-additivity, strong order continuity, property (s) andpseudomelric generating property, etc., are preserved by the new set function. It is also shown thatC-integrability assumption is inevitable for the preservations of strong order continuous andpseudometric generating property.
文摘This paper deals with a problem of application generation together with their Graphic User Interface （GUI）. Particularly, the source code generator based on dynamic frames was improved for more effective specification of GUI. It＇s too demanding for the developers to have specification of the application that contain all physical coordinates and other details of buttons and other GUI elements. The developed solution for this problem is based on post-processing of generated source code using iterators for specifying coordinates and other values of graphic elements. The paper includes two examples of generating web applications and their GUI.
基金Supported by a grant from the Medical Research Program Foundation for Talents of "Tenth five" of PLA (No. 04J002)
文摘Objective： The aim of the study was to explore the application of 64-slice spiral computed tomography perfusion imaging （CTPI） in evaluating angiogenesis in human osteosarcoma. Methods： Twenty-six patients （18 males and 8 females ranging from 9 to 56 years old, with an average of 19 years） with osteosarcoma underwent 64-slice spiral CTPI. We analyzed the correlations of CTPI parameters including blood flow （BF）, blood volume （BV）, time to peak （TTP）, and permeability surface （PS） with the expression of markers of angiogenesis. Statistical analysis was performed with paired-samples t test, and Pearson correlation analysis was employed to investigate the correlations of CTPI parameters with microvessel density （MVD）. Results： Mean BF, BV, TTP, and PS values of osteosarcoma group were （46.6 ± 25.1） mL/100 g/min, （61.8 ± 29.5） mL/100 g, （122.9 ± 26.2） seconds, and （44.5 ± 14.6） mL/100 g/min, respectively. Those in the normal muscle group were （5.2 ± 6.6） mL/100 g/min, （9.6 ± 7.3） mL/100 g, （115.5 ± 33.1） seconds and （17.0 ± 29.3） mL/100 g/min, respectively. Osteosarcoma group showed higher BF, BV and PS compared with the normal muscle group （P = 0.000, P = 0.000, and P = 0.000, respectively）. However, no significant difference was found in TTP between osteosarcoma tissue and normal adjacent muscle tissue （P = 0.273）. BF, BV, and PS were positively correlated with MVD （r = 0.83, P = 0.000; r = 0.87, P = 0.000; and r = 0.63, P = 0.001, respectively）. No correlation was found between TTP and MVD （r = –0.02, P = 0.93）. Conclusion： CTPI is useful for assessing tumor vascularity of osteosarcoma and CTPI parameters are positively correlated with MVD.
基金supported by the National Natural Science Foundation of China under Grant No. 61271174
文摘By allowing routers to combine the received packets before forwarding them,network coding-based applications are susceptible to possible malicious pollution attacks.Existing solutions for counteracting this issue either incur inter-generation pollution attacks(among multiple generations)or suffer high computation/bandwidth overhead.Using a dynamic public key technique,we propose a novel homomorphic signature scheme for network coding for each generation authentication without updating the initial secret key used.As per this idea,the secret key is scrambled for each generation by using the generation identifier,and each packet can be fast signed using the scrambled secret key for the generation to which the packet belongs.The scheme not only can resist intra-generation pollution attacks effectively but also can efficiently prevent inter-generation pollution attacks.Further,the communication overhead of the scheme is small and independent of the size of the transmitting files.
文摘A greenhouse pot experiment was conducted to study the effect of drought induced at different phenological stages on growth, biomass production and yield performance of grain amaranth Amaranthus cruentus G6. After emergence seedlings were exposed to different soil water regimes： constant adequate moisture （W1） and drought （W2） throughout the growing period, drought initiated at crop inflorescence formation （W3）, drought condition during pre-inflorescence formation （W4） and treatment W5 where drought condition occurred in the period from the beginning of inflorescence formation to the beginning of flowering. Crop samples were taken at the maturity. The growth and yield performance of amaranth were assessed by measuring root length, stem height and inflorescence length, and by evaluating fresh and dry weight of plant parts, grain yield and harvest index. Drought stress initiated at different phenological stages affected the evaluated morphological parameters, assimilate allocation and grain yield. Drought throughout the growing period resulted in grain and biomass yield reduction for 51% and 50%, respectively. Water deficit during inflorescence formation appears to be critical growing stage influencing grain yield, while soil drying in the vegetative growth stages improve the assimilate allocation to the above-ground biomass and particularly to the grain.
文摘Nowadays IPP＇s power plant construction is encouraged by the current deregulatory climate. The financing technique employed to implement these projects is often the project financing formula. Under such condition an investor consortium, usually foreigner plan, build, operate the power plant and sell the generated electricity to the host utility. The sale price is determined from the expected IPP＇s production cost, enhanced from the expected welfare obtainable by selling electricity. This paper proposes a methodology for linking the uncertainty of the future production cost with the price of the electricity generated by an IPP. This is a stochastic approach to the sale price definition problem, while usually conducted through a deterministic procedure.
基金provided by grants from the National Basic Research Program of China (Grant No. 2006CB400503)LASG Free Exploration Fund+1 种基金LASG State Key Laboratory Special Fundthe KZCX3-SW-230 of the Chinese Academy of Sciences
文摘A projected skill is adopted by use of the differential evolution (DE) algorithm to calculate a conditional nonlinear optimal perturbation (CNOP). The CNOP is the maximal value of a constrained optimization problem with a constraint condition, such as a ball constraint. The success of the DE algorithm lies in its ability to handle a non-differentiable and nonlinear cost function. In this study, the DE algorithm and the traditional optimization algorithms used to obtain the CNOPs are compared by analyzing a theoretical grassland ecosystem model and a dynamic global vegetation model. This study shows that the CNOPs generated by the DE algorithm are similar to those by the sequential quadratic programming (SQP) algorithm and the spectral projected gradients (SPG2) algorithm. If the cost function is non-differentiable, the CNOPs could also be caught with the DE algorithm. The numerical results suggest the DE algorithm can be employed to calculate the CNOP, especially when the cost function is non-differentiable.
