The investigation was performed on 4 Mullets (27～49 cm long and weighing 225～1 500 g each) of both sexes from the waters off Tianjin. Small pieces of the gills were sliced and immersionfixed in a buffer mixture of 1...The investigation was performed on 4 Mullets (27～49 cm long and weighing 225～1 500 g each) of both sexes from the waters off Tianjin. Small pieces of the gills were sliced and immersionfixed in a buffer mixture of 1.5% glutaraldehyde, 1.5% paraformaldehyde and 0.1 mol/dm~3 phosphate for at least 24 h. After fixation in phosphate buffered 1% OOat 4 ℃ for 1 h, the tissues were展开更多
Objective: To study the treatment of B-Thalas-semia (ThE) with Chinese herbal medicine for Bushen Yisui (BSYS), its theoretical base and molecular mechanism. Methods: Seventy-eight patients with ThE were treated with ...Objective: To study the treatment of B-Thalas-semia (ThE) with Chinese herbal medicine for Bushen Yisui (BSYS), its theoretical base and molecular mechanism. Methods: Seventy-eight patients with ThE were treated with BSYS recipe (consisted of 11 Chinese herbal drugs as Dogwood fruit, Fleeceflower root, prepared Rehmannia root and turtle shell, etc.) orally taken, 3 times per day, 10 g/time, 3 months as one therapeutic course. Hemoglobin (Hb), red blood cell (RBC), reticulocyte (Ret) and hemoglobin F (HbF) were checked every month. At the same time, PAGE, PVR, PCR-SSCP, RT-PCR, DNA series analysis, mRNA gene expression analysis techniques were used to conduct the systematic gene analysis in patients to study the molecular mechanism of TCM treatment from aspects of gene mutation, gene expression and control-regulation. Results: All the blood criteria in patients after BSYS treatment were improved significantly with clinical symptoms展开更多
[Objective] The research aimed to reduce emission load of the farmland runoff by using ecological ditches and pond. [Method] N and P intercepting project construction of the ecological ditches and pond in Zhaiji Villa...[Objective] The research aimed to reduce emission load of the farmland runoff by using ecological ditches and pond. [Method] N and P intercepting project construction of the ecological ditches and pond in Zhaiji Village, Xiangcheng District, Suzhou City as research object, by repairing 1 834 m3 of original drainage ditches, newly excavating 6 800 m2 of ecological main ditches and 6 000 m2 of artificial purification ecological pond, etc., runoff emission load in real control area of the project was counted. [Result] Annual net loads of the runoff emission for TN and TP were respectively 2 552.22 and 95.00 kg in 33.3 hm2 of farmland. Annual runoff intercepting loads of TN and TP were respectively 1 225.07 and 50.35 kg in ditches. Annual runoff intercepting loads of TN and TP were respectively 1 327.15 and 44.65 kg in ecological pond. In effluent, TN concentration was 6.32 mg/L and was smaller than 15 mg/L. TP concentration was 0.25 mg/L and was smaller than 0.5 mg/L. They both reached level-one A discharge standard. [Conclusion] The research provided theoretical basis for effective control of the agricultural non-point source pollution in Taihu Lake basin.展开更多
This paper analyzed necessity and laws of natural and cultural resource consumption and creation activities as a branch of economics or research direction, proposed such basic frameworks of landscape economics such as...This paper analyzed necessity and laws of natural and cultural resource consumption and creation activities as a branch of economics or research direction, proposed such basic frameworks of landscape economics such as connotations, basic problems and research methods on the basis of sorting out literature. Landscape economics is a social science focusing on the public preferences for natural and humanistic landscapes, and the preference evolution laws, economic laws of landscape resource consumption and creation activities. The basic problems include evaluation of landscape resource value, optimal utilization of landscape resources, landscape resource development and protection policies, formation and creation of diversified landscape structure. The research methods include investigation of consumers' willingness, experiment and behavioral economics, logical reasoning, and case study.展开更多
The luminophors MeO-SiO_2:Eu^(3+),Bi^(3+)and MeO-SiO_2Bi^(3+)(Me=Mg.Sr)were synthesized at relatively lower temperature by the sol-gel method using the silica sol as a source of silica.The optimum composition and synt...The luminophors MeO-SiO_2:Eu^(3+),Bi^(3+)and MeO-SiO_2Bi^(3+)(Me=Mg.Sr)were synthesized at relatively lower temperature by the sol-gel method using the silica sol as a source of silica.The optimum composition and synthesis conditions were obtained by studying the excitation and emission spectra and the effects of energy transfer from the Bi^(3+)ions to the Eu^(3+)ions.展开更多
In this paper, on the basis of the heat conduction equation without consideration of the advection and turbulence effects, one-dimensional model for describing surface sea temperature ( T1), bottom sea temperature ( T...In this paper, on the basis of the heat conduction equation without consideration of the advection and turbulence effects, one-dimensional model for describing surface sea temperature ( T1), bottom sea temperature ( Tt ) and the thickness of the upper homogeneous layer ( h ) is developed in terms of the dimensionless temperature θT and depth η and self-simulation function θT - f(η) of vertical temperature profile by means of historical temperature data.The results of trial prediction with our one-dimensional model on T, Th, h , the thickness and gradient of thermocline are satisfactory to some extent.展开更多
Based on the collaborative innovation of governments, enterprises, colleges, scientific institutions and users, the possible shortcomings of talent training of marine cultural industry in Shanghai City were analyzed ...Based on the collaborative innovation of governments, enterprises, colleges, scientific institutions and users, the possible shortcomings of talent training of marine cultural industry in Shanghai City were analyzed by using the case study method, and some specific measures for talent trainingofmarineculturalindustryinShanghaiCitywereproposed.展开更多
-The reclamation rate formula for concentrating tritium by the addition of 'regular and quantitative aqueous sample' is advanced.Effects of different adding modes on reclamation rate and the reclamation rate r...-The reclamation rate formula for concentrating tritium by the addition of 'regular and quantitative aqueous sample' is advanced.Effects of different adding modes on reclamation rate and the reclamation rate reappearance are studied; and the analytic program of tritium in seawater is also proposed. By using Fe-Ni electrodes and the electrolysis temperature of 2± 0. 5℃, β value reaches 20. Reclamation rates reach 83% and 76% when 250 cm3 and 500 cm3 seawater is concentrated to 8 cm3.The relatively appropriate toluene/Trition ratio for counting aqueous sample under the normal temperature is proposed.The computer program of different addition electrolytic concentrations for measuring tritium is coded, and the tritium data base is established.展开更多
With the vigorous development of innovation and entrepreneurship in China,a large number of managers of innovation and entrepreneurship enterprises are studying for MBA degree.The enrollment scale of the MBA program i...With the vigorous development of innovation and entrepreneurship in China,a large number of managers of innovation and entrepreneurship enterprises are studying for MBA degree.The enrollment scale of the MBA program is expanding.In order to improve the quality of MBA dissertation and promote the sustainable and healthy development of MBA education,based on the author's years of MBA teaching experience and dissertation writing guidance experience,this paper introduces three research methods of dissertation writing skills:case study method,enterprise diagnosis method and survey research method,and analyzes five steps of MBA dissertation writing,which can be used as a reference for MBA(EMBA)students to improve their dissertation writing level.展开更多
This research explored the effects of the coronavirus disease(COVID-19)outbreak on stock price movements of China’s tourism industry by using an event study method.The results showed that the crisis negatively impact...This research explored the effects of the coronavirus disease(COVID-19)outbreak on stock price movements of China’s tourism industry by using an event study method.The results showed that the crisis negatively impacted tourism sector stocks.Further quantile regression analyses supported the non-linear relationship between the government’s responses and stock returns.The results present that the resurgence of the virus in Beijing did bring about a short-term negative impact on the tourism industry.The empirical results can be used for future researchers to conduct a comparative study of cultural differences concerning government responses to the COVID-19.展开更多
The problem of a creeping flow of Newtonian fluid extruded from a plane slit or a circular pipe.in the absence of gravity,is simulated successfully by using the continuous-pressure-element method,the discontinuous-pre...The problem of a creeping flow of Newtonian fluid extruded from a plane slit or a circular pipe.in the absence of gravity,is simulated successfully by using the continuous-pressure-element method,the discontinuous-pressure-element method,the consistant penalty method,the reduced integration penalty method and the modified reduced integration penalty method proposed by Oden.Through comparisons between these methods,it is convinced that the discontinuous-pressure interpolation schemes result in more accurate mass conservation and,consequently,more rapid convergence of the free-surface iteration than the continuous one does.The reduced integration penalty method can further reduce the cost of computation while retaining sufficient accuracy of the solution.展开更多
With the propagation of applications on the internet, the internet has become a great information source which supplies users with valuable information. But it is hard for users to quickly acquire the right informatio...With the propagation of applications on the internet, the internet has become a great information source which supplies users with valuable information. But it is hard for users to quickly acquire the right information on the web. This paper an intelligent agent for internet applications to retrieve and extract web information under user's guidance. The intelligent agent is made up of a retrieval script to identify web sources, an extraction script based on the document object model to express extraction process, a data translator to export the extracted information into knowledge bases with frame structures, and a data reasoning to reply users' questions. A GUI tool named Script Writer helps to generate the extraction script visually, and knowledge rule databases help to extract wanted information and to generate the answer to questions.展开更多
In this article,the phenomenon of“information space”and its methods of study,its types,elementary structure and qualitative characteristics are discussed,the author’s definition of the concept of“information”is g...In this article,the phenomenon of“information space”and its methods of study,its types,elementary structure and qualitative characteristics are discussed,the author’s definition of the concept of“information”is given,the structure of the information process,and the phases,which are the basis for the evolution of the information space and the universe of human activity,are considered.展开更多
文摘The investigation was performed on 4 Mullets (27～49 cm long and weighing 225～1 500 g each) of both sexes from the waters off Tianjin. Small pieces of the gills were sliced and immersionfixed in a buffer mixture of 1.5% glutaraldehyde, 1.5% paraformaldehyde and 0.1 mol/dm~3 phosphate for at least 24 h. After fixation in phosphate buffered 1% OOat 4 ℃ for 1 h, the tissues were
文摘Objective: To study the treatment of B-Thalas-semia (ThE) with Chinese herbal medicine for Bushen Yisui (BSYS), its theoretical base and molecular mechanism. Methods: Seventy-eight patients with ThE were treated with BSYS recipe (consisted of 11 Chinese herbal drugs as Dogwood fruit, Fleeceflower root, prepared Rehmannia root and turtle shell, etc.) orally taken, 3 times per day, 10 g/time, 3 months as one therapeutic course. Hemoglobin (Hb), red blood cell (RBC), reticulocyte (Ret) and hemoglobin F (HbF) were checked every month. At the same time, PAGE, PVR, PCR-SSCP, RT-PCR, DNA series analysis, mRNA gene expression analysis techniques were used to conduct the systematic gene analysis in patients to study the molecular mechanism of TCM treatment from aspects of gene mutation, gene expression and control-regulation. Results: All the blood criteria in patients after BSYS treatment were improved significantly with clinical symptoms
基金Supported by Provincial Special Fund,Comprehensive Treatment of the Water Environment(Phase V)in Taihu Lake,China[xiangfagaitou(2011)27]
文摘[Objective] The research aimed to reduce emission load of the farmland runoff by using ecological ditches and pond. [Method] N and P intercepting project construction of the ecological ditches and pond in Zhaiji Village, Xiangcheng District, Suzhou City as research object, by repairing 1 834 m3 of original drainage ditches, newly excavating 6 800 m2 of ecological main ditches and 6 000 m2 of artificial purification ecological pond, etc., runoff emission load in real control area of the project was counted. [Result] Annual net loads of the runoff emission for TN and TP were respectively 2 552.22 and 95.00 kg in 33.3 hm2 of farmland. Annual runoff intercepting loads of TN and TP were respectively 1 225.07 and 50.35 kg in ditches. Annual runoff intercepting loads of TN and TP were respectively 1 327.15 and 44.65 kg in ecological pond. In effluent, TN concentration was 6.32 mg/L and was smaller than 15 mg/L. TP concentration was 0.25 mg/L and was smaller than 0.5 mg/L. They both reached level-one A discharge standard. [Conclusion] The research provided theoretical basis for effective control of the agricultural non-point source pollution in Taihu Lake basin.
文摘This paper analyzed necessity and laws of natural and cultural resource consumption and creation activities as a branch of economics or research direction, proposed such basic frameworks of landscape economics such as connotations, basic problems and research methods on the basis of sorting out literature. Landscape economics is a social science focusing on the public preferences for natural and humanistic landscapes, and the preference evolution laws, economic laws of landscape resource consumption and creation activities. The basic problems include evaluation of landscape resource value, optimal utilization of landscape resources, landscape resource development and protection policies, formation and creation of diversified landscape structure. The research methods include investigation of consumers' willingness, experiment and behavioral economics, logical reasoning, and case study.
文摘The luminophors MeO-SiO_2:Eu^(3+),Bi^(3+)and MeO-SiO_2Bi^(3+)(Me=Mg.Sr)were synthesized at relatively lower temperature by the sol-gel method using the silica sol as a source of silica.The optimum composition and synthesis conditions were obtained by studying the excitation and emission spectra and the effects of energy transfer from the Bi^(3+)ions to the Eu^(3+)ions.
文摘In this paper, on the basis of the heat conduction equation without consideration of the advection and turbulence effects, one-dimensional model for describing surface sea temperature ( T1), bottom sea temperature ( Tt ) and the thickness of the upper homogeneous layer ( h ) is developed in terms of the dimensionless temperature θT and depth η and self-simulation function θT - f(η) of vertical temperature profile by means of historical temperature data.The results of trial prediction with our one-dimensional model on T, Th, h , the thickness and gradient of thermocline are satisfactory to some extent.
基金Supported by Educational Science Research Project of Shanghai City(C16064)
文摘Based on the collaborative innovation of governments, enterprises, colleges, scientific institutions and users, the possible shortcomings of talent training of marine cultural industry in Shanghai City were analyzed by using the case study method, and some specific measures for talent trainingofmarineculturalindustryinShanghaiCitywereproposed.
文摘-The reclamation rate formula for concentrating tritium by the addition of 'regular and quantitative aqueous sample' is advanced.Effects of different adding modes on reclamation rate and the reclamation rate reappearance are studied; and the analytic program of tritium in seawater is also proposed. By using Fe-Ni electrodes and the electrolysis temperature of 2± 0. 5℃, β value reaches 20. Reclamation rates reach 83% and 76% when 250 cm3 and 500 cm3 seawater is concentrated to 8 cm3.The relatively appropriate toluene/Trition ratio for counting aqueous sample under the normal temperature is proposed.The computer program of different addition electrolytic concentrations for measuring tritium is coded, and the tritium data base is established.
基金the National Social Science Found for the project"Research on the Effectiveness and Synergy of Innovation and Entrepreneurship in Promoting Employment"(Project No.19BJY057).
文摘With the vigorous development of innovation and entrepreneurship in China,a large number of managers of innovation and entrepreneurship enterprises are studying for MBA degree.The enrollment scale of the MBA program is expanding.In order to improve the quality of MBA dissertation and promote the sustainable and healthy development of MBA education,based on the author's years of MBA teaching experience and dissertation writing guidance experience,this paper introduces three research methods of dissertation writing skills:case study method,enterprise diagnosis method and survey research method,and analyzes five steps of MBA dissertation writing,which can be used as a reference for MBA(EMBA)students to improve their dissertation writing level.
基金This research was supported by the Jiangxi Humanities and Social Sciences Project of University(NO.JJ20125).
文摘This research explored the effects of the coronavirus disease(COVID-19)outbreak on stock price movements of China’s tourism industry by using an event study method.The results showed that the crisis negatively impacted tourism sector stocks.Further quantile regression analyses supported the non-linear relationship between the government’s responses and stock returns.The results present that the resurgence of the virus in Beijing did bring about a short-term negative impact on the tourism industry.The empirical results can be used for future researchers to conduct a comparative study of cultural differences concerning government responses to the COVID-19.
文摘The problem of a creeping flow of Newtonian fluid extruded from a plane slit or a circular pipe.in the absence of gravity,is simulated successfully by using the continuous-pressure-element method,the discontinuous-pressure-element method,the consistant penalty method,the reduced integration penalty method and the modified reduced integration penalty method proposed by Oden.Through comparisons between these methods,it is convinced that the discontinuous-pressure interpolation schemes result in more accurate mass conservation and,consequently,more rapid convergence of the free-surface iteration than the continuous one does.The reduced integration penalty method can further reduce the cost of computation while retaining sufficient accuracy of the solution.
文摘With the propagation of applications on the internet, the internet has become a great information source which supplies users with valuable information. But it is hard for users to quickly acquire the right information on the web. This paper an intelligent agent for internet applications to retrieve and extract web information under user's guidance. The intelligent agent is made up of a retrieval script to identify web sources, an extraction script based on the document object model to express extraction process, a data translator to export the extracted information into knowledge bases with frame structures, and a data reasoning to reply users' questions. A GUI tool named Script Writer helps to generate the extraction script visually, and knowledge rule databases help to extract wanted information and to generate the answer to questions.
文摘In this article,the phenomenon of“information space”and its methods of study,its types,elementary structure and qualitative characteristics are discussed,the author’s definition of the concept of“information”is given,the structure of the information process,and the phases,which are the basis for the evolution of the information space and the universe of human activity,are considered.
