We exploit higher-order conditional symmetry to reduce initial-value problems for evolution equations toCauchy problems for systems of ordinary differential equations (ODEs).We classify a class of fourth-order evoluti...We exploit higher-order conditional symmetry to reduce initial-value problems for evolution equations toCauchy problems for systems of ordinary differential equations (ODEs).We classify a class of fourth-order evolutionequations which admit certain higher-order generalized conditional symmetries (GCSs) and give some examples to showthe main reduction procedure.These reductions cannot be derived within the framework of the standard Lie approach,which hints that the technique presented here is something essential for the dimensional reduction of evolu tion equations.展开更多
1 Introduction Major and profound changes have taken place in China over the past 30 years. An epidemic of cardiovascular diseases （CVD） in China is emerging as a result of lifestyle changes, urbanization, and the ...1 Introduction Major and profound changes have taken place in China over the past 30 years. An epidemic of cardiovascular diseases （CVD） in China is emerging as a result of lifestyle changes, urbanization, and the accelerated process of aging. The incidence of CVD is continuously increasing and will remain an upward trend in the next decade. Since 2005,展开更多
A new general algebraic method is presented to uniformly construct a series of exact solutions for nonlinear evolution equations （NLEEs）. For illustration, we apply the new method to shallow long wave approximate eq...A new general algebraic method is presented to uniformly construct a series of exact solutions for nonlinear evolution equations （NLEEs）. For illustration, we apply the new method to shallow long wave approximate equations and successfully obtain abundant new exact solutions, which include rational solitary wave solutions and rational triangular periodic wave solutions. The method is straightforward and concise, and it can also be applied to other nonlinear evolution equations in mathematical physics.展开更多
This paper is based on the relations between projection Riccati equations and Weierstrass elliptic equation, combined with the Groebner bases in the symbolic computation.Then the novel method for constructing the Weie...This paper is based on the relations between projection Riccati equations and Weierstrass elliptic equation, combined with the Groebner bases in the symbolic computation.Then the novel method for constructing the Weierstrass elliptic solutions to the nonlinear evolution equations is given by using the above relations.展开更多
The elementary and systematic binary Bell polynomials method is applied to the generalized NizhnikNovikov-Veselov (GNNV) equation.The bilinear representation,bilinear B&cklund transformation,Lax pair and infinitec...The elementary and systematic binary Bell polynomials method is applied to the generalized NizhnikNovikov-Veselov (GNNV) equation.The bilinear representation,bilinear B&cklund transformation,Lax pair and infiniteconservation laws of the GNNV equation are obtained directly,without too much trick like Hirota’s bilinear method.展开更多
With the urbanization increasingly advancing at a high speed, a large number of farmlands have been turned into building lands, which leads the urban-rural conflicts more and more evident than before. Introducing the ...With the urbanization increasingly advancing at a high speed, a large number of farmlands have been turned into building lands, which leads the urban-rural conflicts more and more evident than before. Introducing the concept of productive landscape into residential districts, could relieve the contradiction between agricultural land and urban construction land, improve the modern lifestyle, provide a new perspective of landscape design philosophy. In this paper, based on the analysis of the present situation of residential green space, the significance and approaches of productive landscape in residential areas have been put forward, and suggestions of daily management and countermeasures about agricultural pollution problem have also been given.展开更多
In the ever fusion experiments in SWIP, pellet forming process was carried out through adjusting relative devices by staff member in site, which will make every pellet-forming process slight distinction and will resul...In the ever fusion experiments in SWIP, pellet forming process was carried out through adjusting relative devices by staff member in site, which will make every pellet-forming process slight distinction and will result in pellet difference in shape, size and intensity. In the intervals of HL-2A discharges, staff member have to go site to accomplish the pellet-forming process, this wastes human power and increase the potential danger. So it is necessary to develop a remote control system to perform the pellet-forming process. The control system needs have the features of real-time, reliability and be easy to operate and maintain.展开更多
Objective:The purpose of this study was to determine the effectiveness of Mobile-Stroke Risk Scale and Life Style Guidance(M-SRSguide)in promoting a healthy lifestyle and reducing stroke risk factors in atrisk persons...Objective:The purpose of this study was to determine the effectiveness of Mobile-Stroke Risk Scale and Life Style Guidance(M-SRSguide)in promoting a healthy lifestyle and reducing stroke risk factors in atrisk persons.Methods:This research was an clinical trial with a pre-test and post-test control group design.The accessible population is persons at risk of stroke in the community(West and East Kalimantan Province,Indonesia).Thirty-two participants in the intervention group and 32 participants in the control group participated in this study.The sampling method was systematic random sampling.We allocate the sample into the intervention and control groups using a randomized block design.The intervention group used the M-SRSguide.The control group used manual book for a self-assessment of stroke risk.The measurement of a healthy lifestyle and the stroke risk factors was performed before and six months after the intervention.Results:There are no significant differences in healthy lifestyle and stroke risk factors between the two groups after the intervention(P>0.05).Analysis of healthy lifestyle behavior assessment items in the intervention group showed an increase in healthy diets,activity patterns,and stress control after the use of the M-SRSguide(P<0.01).Conclusion:The use of M-SRSguide is effective in promoting a healthy lifestyle.展开更多
In the present letter, we get the appropriate bilinear forms of （2 ＋ 1）-dimensional KdV equation, extended （2 ＋ 1）-dimensional shallow water wave equation and （2 ＋ 1）-dimensional Sawada -Kotera equation in a ...In the present letter, we get the appropriate bilinear forms of （2 ＋ 1）-dimensional KdV equation, extended （2 ＋ 1）-dimensional shallow water wave equation and （2 ＋ 1）-dimensional Sawada -Kotera equation in a quick and natural manner, namely by appling the binary Bell polynomials. Then the Hirota direct method and Riemann theta function are combined to construct the periodic wave solutions of the three types nonlinear evolution equations. And the corresponding figures of the periodic wave solutions are given. Furthermore, the asymptotic properties of the periodic wave solutions indicate that the soliton solutions can be derived from the periodic wave solutions.展开更多
A new on-line batch process monitoring and diagnosing approach based on Fisher discriminant analysis （FDA） was proposed. This method does not need to predict the future observations of variables, so it is more sensi...A new on-line batch process monitoring and diagnosing approach based on Fisher discriminant analysis （FDA） was proposed. This method does not need to predict the future observations of variables, so it is more sensitive to fault detection and stronger implement for monitoring. In order to improve the monitoring performance, the variables trajectories of batch process are separated into several blocks. The key to the proposed approach for on-line monitoring is to calculate the distance of block data that project to low-dimension Fisher space between new batch and reference batch. Comparing the distance with the predefine threshold, it can be considered whether the batch process is normal or abnormal. Fault diagnosis is performed based on the weights in fault direction calculated by FDA. The proposed method was applied to the simulation model of fed-batch penicillin fermentation and the resuits were compared with those obtained using MPCA. The simulation results clearly show that the on-line monitoring method based on FDA is more efficient than the MPCA.展开更多
We investigated the developmental expression pattern of AmphiCaM in cephalochordate amphioxus （Branchiostoma belcheri tsingtauense）. We cultured and sampled the animals at different developmental stages （eggs and l...We investigated the developmental expression pattern of AmphiCaM in cephalochordate amphioxus （Branchiostoma belcheri tsingtauense）. We cultured and sampled the animals at different developmental stages （eggs and larvae）, and used in-situ hybridization and northern blotting to document the spatial and temporal changes in AmphiCaM expression. The alimentary tract dominates the development from the late neurula stage to the adult stage. AmphiCaM expression increased significantly in the alimentary tract during the late neurula stage and remained elevated in the adults. Our results indicate that AmphiCaM is involved in the differentiation of the alimentary tract in amphioxus; and furthermore, provide an insight into the change in function of CaM genes during evolution.展开更多
The process of urbanization and industrialization in China, has been instrumental in depriving villagers of land and their way of life. This has led to a series of conflicts between government and villagers over the l...The process of urbanization and industrialization in China, has been instrumental in depriving villagers of land and their way of life. This has led to a series of conflicts between government and villagers over the land. This issue has become the core of the conflict. The present from-top-to-bottom rural planning does not meet villagers＇ needs. Within the rural area, there are close social and organizational relationships, the villagers strongly demand autonomy. This has led to conflict between the state and villagers rights of autonomy. The conflict is ongoing, it has never stopped. For the purpose of this paper, the rural area of Zhejiang Province was investigated. The method of the empirical study was employed in order to comprehensively analyze the developmental stage of urban-rural relations, planning systems, the conflict process, and difficulties in the process of urbanization. The study discovered that the conflict was led by different value orientations between the two stakeholders--the government and the villagers. This resulted in a series of conflicts over land and natural resources and added to the breakdown of relationships on both sides, this was an external manifestation of value orientation on both sides. In conclusion, the paper recommends conflict resolution proposals and measures to be employed at every stage of urbanization.展开更多
Building engineering management is a huge and complex work, which the key to ensure the quality ofconstruction projects. With the rapid development of the domestic construction industry, the traditional engineering ma...Building engineering management is a huge and complex work, which the key to ensure the quality ofconstruction projects. With the rapid development of the domestic construction industry, the traditional engineering management model can not meet the needs of a large number of construction project information exchanges. Only realizing informationization of construction engineering management, can reduce the cost of construction projects, improve the efficiency of project management and construction progress. This paper analyzes the current situation of construction management informatization, and puts forward some suggestions to strengthen the construction management information construction.展开更多
基金National Natural Science Foundation of China under Grant Nos.10447007 and 10671156the Natural Science Foundation of Shaanxi Province of China under Grant No.2005A13
文摘We exploit higher-order conditional symmetry to reduce initial-value problems for evolution equations toCauchy problems for systems of ordinary differential equations (ODEs).We classify a class of fourth-order evolutionequations which admit certain higher-order generalized conditional symmetries (GCSs) and give some examples to showthe main reduction procedure.These reductions cannot be derived within the framework of the standard Lie approach,which hints that the technique presented here is something essential for the dimensional reduction of evolu tion equations.
文摘1 Introduction Major and profound changes have taken place in China over the past 30 years. An epidemic of cardiovascular diseases （CVD） in China is emerging as a result of lifestyle changes, urbanization, and the accelerated process of aging. The incidence of CVD is continuously increasing and will remain an upward trend in the next decade. Since 2005,
文摘A new general algebraic method is presented to uniformly construct a series of exact solutions for nonlinear evolution equations （NLEEs）. For illustration, we apply the new method to shallow long wave approximate equations and successfully obtain abundant new exact solutions, which include rational solitary wave solutions and rational triangular periodic wave solutions. The method is straightforward and concise, and it can also be applied to other nonlinear evolution equations in mathematical physics.
基金supported by the Open Project of Key Laboratory of Mathematics Mechanization,CAS under Grant No.KLMM0602
文摘This paper is based on the relations between projection Riccati equations and Weierstrass elliptic equation, combined with the Groebner bases in the symbolic computation.Then the novel method for constructing the Weierstrass elliptic solutions to the nonlinear evolution equations is given by using the above relations.
基金Supported by the National Natural Science Foundation of China under Grant Nos.10735030,11075055,61021004,90718041,Shanghai Leading Academic Discipline Project (No. B412)Program for Changjiang Scholars and Innovative Research Team in University (IRT0734)
文摘The elementary and systematic binary Bell polynomials method is applied to the generalized NizhnikNovikov-Veselov (GNNV) equation.The bilinear representation,bilinear B&cklund transformation,Lax pair and infiniteconservation laws of the GNNV equation are obtained directly,without too much trick like Hirota’s bilinear method.
文摘With the urbanization increasingly advancing at a high speed, a large number of farmlands have been turned into building lands, which leads the urban-rural conflicts more and more evident than before. Introducing the concept of productive landscape into residential districts, could relieve the contradiction between agricultural land and urban construction land, improve the modern lifestyle, provide a new perspective of landscape design philosophy. In this paper, based on the analysis of the present situation of residential green space, the significance and approaches of productive landscape in residential areas have been put forward, and suggestions of daily management and countermeasures about agricultural pollution problem have also been given.
文摘In the ever fusion experiments in SWIP, pellet forming process was carried out through adjusting relative devices by staff member in site, which will make every pellet-forming process slight distinction and will result in pellet difference in shape, size and intensity. In the intervals of HL-2A discharges, staff member have to go site to accomplish the pellet-forming process, this wastes human power and increase the potential danger. So it is necessary to develop a remote control system to perform the pellet-forming process. The control system needs have the features of real-time, reliability and be easy to operate and maintain.
基金We thank the Politeknik Kesehatan Kementerian Kesehatan Indonesia,LB.01.01/I.1/2657/2019 for funding this study,the respondents for participating in this study,and Marshall Godwin for granting permission to use the Simple Lifestyle Indicator Questionnaire(SLIQ).
文摘Objective:The purpose of this study was to determine the effectiveness of Mobile-Stroke Risk Scale and Life Style Guidance(M-SRSguide)in promoting a healthy lifestyle and reducing stroke risk factors in atrisk persons.Methods:This research was an clinical trial with a pre-test and post-test control group design.The accessible population is persons at risk of stroke in the community(West and East Kalimantan Province,Indonesia).Thirty-two participants in the intervention group and 32 participants in the control group participated in this study.The sampling method was systematic random sampling.We allocate the sample into the intervention and control groups using a randomized block design.The intervention group used the M-SRSguide.The control group used manual book for a self-assessment of stroke risk.The measurement of a healthy lifestyle and the stroke risk factors was performed before and six months after the intervention.Results:There are no significant differences in healthy lifestyle and stroke risk factors between the two groups after the intervention(P>0.05).Analysis of healthy lifestyle behavior assessment items in the intervention group showed an increase in healthy diets,activity patterns,and stress control after the use of the M-SRSguide(P<0.01).Conclusion:The use of M-SRSguide is effective in promoting a healthy lifestyle.
基金Supported by the National Natural Science Foundation of China under Grant Nos.11075055,61021004,10735030Shanghai Leading Academic Discipline Project under Grant No.B412Program for Changjiang Scholars and Innovative Research Team in University(IRT0734)
文摘In the present letter, we get the appropriate bilinear forms of （2 ＋ 1）-dimensional KdV equation, extended （2 ＋ 1）-dimensional shallow water wave equation and （2 ＋ 1）-dimensional Sawada -Kotera equation in a quick and natural manner, namely by appling the binary Bell polynomials. Then the Hirota direct method and Riemann theta function are combined to construct the periodic wave solutions of the three types nonlinear evolution equations. And the corresponding figures of the periodic wave solutions are given. Furthermore, the asymptotic properties of the periodic wave solutions indicate that the soliton solutions can be derived from the periodic wave solutions.
文摘A new on-line batch process monitoring and diagnosing approach based on Fisher discriminant analysis （FDA） was proposed. This method does not need to predict the future observations of variables, so it is more sensitive to fault detection and stronger implement for monitoring. In order to improve the monitoring performance, the variables trajectories of batch process are separated into several blocks. The key to the proposed approach for on-line monitoring is to calculate the distance of block data that project to low-dimension Fisher space between new batch and reference batch. Comparing the distance with the predefine threshold, it can be considered whether the batch process is normal or abnormal. Fault diagnosis is performed based on the weights in fault direction calculated by FDA. The proposed method was applied to the simulation model of fed-batch penicillin fermentation and the resuits were compared with those obtained using MPCA. The simulation results clearly show that the on-line monitoring method based on FDA is more efficient than the MPCA.
基金Supported in part by Shandong Entry-Exit Inspection and Quarantine Bureau （SK200807） We thank Dr. LI Xiangning, who works in the CSR （Center for Scientific Review） of NIH （National Institutes of Health）, USA, for his critical reading of the manuscript.
文摘We investigated the developmental expression pattern of AmphiCaM in cephalochordate amphioxus （Branchiostoma belcheri tsingtauense）. We cultured and sampled the animals at different developmental stages （eggs and larvae）, and used in-situ hybridization and northern blotting to document the spatial and temporal changes in AmphiCaM expression. The alimentary tract dominates the development from the late neurula stage to the adult stage. AmphiCaM expression increased significantly in the alimentary tract during the late neurula stage and remained elevated in the adults. Our results indicate that AmphiCaM is involved in the differentiation of the alimentary tract in amphioxus; and furthermore, provide an insight into the change in function of CaM genes during evolution.
文摘The process of urbanization and industrialization in China, has been instrumental in depriving villagers of land and their way of life. This has led to a series of conflicts between government and villagers over the land. This issue has become the core of the conflict. The present from-top-to-bottom rural planning does not meet villagers＇ needs. Within the rural area, there are close social and organizational relationships, the villagers strongly demand autonomy. This has led to conflict between the state and villagers rights of autonomy. The conflict is ongoing, it has never stopped. For the purpose of this paper, the rural area of Zhejiang Province was investigated. The method of the empirical study was employed in order to comprehensively analyze the developmental stage of urban-rural relations, planning systems, the conflict process, and difficulties in the process of urbanization. The study discovered that the conflict was led by different value orientations between the two stakeholders--the government and the villagers. This resulted in a series of conflicts over land and natural resources and added to the breakdown of relationships on both sides, this was an external manifestation of value orientation on both sides. In conclusion, the paper recommends conflict resolution proposals and measures to be employed at every stage of urbanization.
文摘Building engineering management is a huge and complex work, which the key to ensure the quality ofconstruction projects. With the rapid development of the domestic construction industry, the traditional engineering management model can not meet the needs of a large number of construction project information exchanges. Only realizing informationization of construction engineering management, can reduce the cost of construction projects, improve the efficiency of project management and construction progress. This paper analyzes the current situation of construction management informatization, and puts forward some suggestions to strengthen the construction management information construction.
