Most real application processes belong to a complex nonlinear system with incomplete information. It is difficult to estimate a model by assuming that the data set is governed by a global model. Moreover, in real proc...Most real application processes belong to a complex nonlinear system with incomplete information. It is difficult to estimate a model by assuming that the data set is governed by a global model. Moreover, in real processes, the available data set is usually obtained with missing values. To overcome the shortcomings of global modeling and missing data values, a new modeling method is proposed. Firstly, an incomplete data set with missing values is partitioned into several clusters by a K-means with soft constraints （KSC） algorithm, which incorporates soft constraints to enable clustering with missing values. Then a local model based on each group is developed by using SVR algorithm, which adopts a missing value insensitive （MVI） kernel to investigate the missing value estimation problem. For each local model, its valid area is gotten as well. Simulation results prove the effectiveness of the current local model and the estimation algorithm.展开更多
In this study,different influence mechanisms associated with temperatures and pH values were investigated through cemented paste backfill(CPB)systems.CPB samples were prepared with temperatures ranging from 10 to 50℃...In this study,different influence mechanisms associated with temperatures and pH values were investigated through cemented paste backfill(CPB)systems.CPB samples were prepared with temperatures ranging from 10 to 50℃ in 10℃ increments and pH values of 3,7,and 13.Then,the CPB mixture were subjected to rheological tests,thermogravimetric analysis(TG),derivative thermogravimetry analysis(DTG),Fourier-transform infrared spectroscopy(FT-IR),and scanning electron microscopy(SEM).Results demonstrated that the temperatures had significant effects on the rheological properties of CPB,whereas the effects of pH values were relatively unapparent.Higher temperatures(over 20℃)were prone to bring higher shear stress,yield stress,and apparent viscosity with the same pH value condition.However,an overly high temperature(50℃)cannot raise the apparent viscosity.Non-neutral conditions,for pH values of 3 and 13,could strengthen the shear stress and apparent viscosity at the same temperature.Two different yield stress curves could be discovered by uprising pH values,which also led to apparent viscosity of two various curves under the same temperatures(under 50℃).Microscopically,rheological properties of CPB were affected by temperatures and pH values which enhanced or reduced the cement hydration procedures,rates,products and space structures.展开更多
What is success? How is success measured? Willa Cather provides us two sets of values.To some people, success is measured in terms of money. To some success means choosing one’s own life and realizing one’s own valu...What is success? How is success measured? Willa Cather provides us two sets of values.To some people, success is measured in terms of money. To some success means choosing one’s own life and realizing one’s own values. In the novel The Sculptor’s Funeral Cather portrays an artist, who breaks the bondage of the old environment, and becomes a successful sculptor. However, he is regarded as a failure by his local people because the values by which they judge success are not the same.展开更多
This study analyses all A-share listed companies from 2015 to 2020 to empirically examine the impact of inquiry supervision on corporate value and the moderating influence of corporate social responsibility(CSR)on thi...This study analyses all A-share listed companies from 2015 to 2020 to empirically examine the impact of inquiry supervision on corporate value and the moderating influence of corporate social responsibility(CSR)on this relationship.Research has shown that inquiry supervision significantly reduces corporate value,and the corporate social responsibility previously performed by companies can weaken this negative impact.Furthermore,the heterogeneity test based on internal and external controls shows that the reputation protection effect of CSR is more significant for companies with a higher proportion of independent directors,companies with a higher proportion of institutional investors investing in stocks,regions with a higher degree of marketization,and regions with a higher level of rule of law.The research in this article validates the effectiveness of reputation protection and verifies that reputation protection,as an informal mechanism,is easier to fulfil a role in areas where formal mechanisms are perfect.In other words,formal and informal mechanisms appear to complement each other.These findings provide empirical insights into the governance of CSR.展开更多
It is values that determine one’s future direction of development.The young top innovative scientific talents are outstanding ones both in the scientific field and the youth,whose values not only determine their own ...It is values that determine one’s future direction of development.The young top innovative scientific talents are outstanding ones both in the scientific field and the youth,whose values not only determine their own future directions of development,but also the development and future of the whole country.In order to cultivate their values,it is quite necessary to strengthen the thought guidance,develop the core socialist values,and adhere to morality education,down-to-earth practice,and the pursuit of truth.Moreover,the individual development of the talents needs to be emphasized and their creativity needs to be stimulated.The synergistic functions of the organizations and departments should be given full play to in order to utilize the culture education strategy.展开更多
Before diagnosed by DGA (dissolved gas analysis) methods, gas caution values, which index the level of gas formation, must be used to evaluate the possibility of incipient faults to reduce the misdiagnosis in the norm...Before diagnosed by DGA (dissolved gas analysis) methods, gas caution values, which index the level of gas formation, must be used to evaluate the possibility of incipient faults to reduce the misdiagnosis in the normal state. However, the calculation of these values is now only based on cumulative percentile method without taking into account operating conditions. To overcome this disadvantage, a new approach to calculate the transformer caution values is presented. This approach is based on statistical distribution and correlation analysis, and it takes the individual variation and fluctuation caused by internal and external factors into consideration. Then 6550 transformer DGA data collected from North China Power Grid are analyzed in this paper. The results show that the volume fraction of TH (total hydrocarbon) approximately obeys normal distribution when the 3-sigma rule is used to calculate its caution value. The volume fraction of CO has a strong positive correlation with oil temperature. For H2, the negative correlation with oil temperature is significant when the volume fraction is not very low. The caution value curves for CO and H2 are obtained by regression analyses. Thus, the gas caution values/curves obtained using the new method are not always constant, but vary with oil temperature, which is an advantage of the proposed method compared with cumulative percentile method. The variation of gas caution values/curves also reflects the influence of the external factors, for instance, va- rying with monitoring time ensures that the gas caution values are always consistent with operating status.展开更多
Core value is an important guarantee for building a harmonious socialist society and the ideological and moral basis of the unity of the people of all ethnic groups in our country.In recent years,the cultivation and p...Core value is an important guarantee for building a harmonious socialist society and the ideological and moral basis of the unity of the people of all ethnic groups in our country.In recent years,the cultivation and practice of core values have become more and more popular;the main thoughts of core values derive fromtraditional culture.In retrospect of our traditional culture,Confucian culture is not allowed to be ignored.Therefore,in the process of fostering and practicing the core values,we need to analyze the combination between Confucian culture and core values,and ingeniously fuse the Confucian culture into the core values,so that the connotation of the core values would more abundant.展开更多
The spiritual needs are uniquely human,which are the conditions of human existence and development.In the process of socialist modernization construction in our country,the social economy develops rapidly and the mate...The spiritual needs are uniquely human,which are the conditions of human existence and development.In the process of socialist modernization construction in our country,the social economy develops rapidly and the material basis compacts continuously.Yet people' s development is far behind.The socialist core values can lead people' s spiritual needs to be healthy and virtuous.It can also build the civic spiritual support system for social development,as well as help people establish the values and faiths that adapt to the socialist construction in our country.展开更多
The rapid development of information technology and the fierce conflict of multiple values lead information communication to present different characteristics in the new media era,which has brought both challenges and...The rapid development of information technology and the fierce conflict of multiple values lead information communication to present different characteristics in the new media era,which has brought both challenges and opportunities to the cultivation and dissemination of core values.With the development of new media,the environment for cultivating core values is becoming increasingly complex,and the main content of core values is being dispelled,thus weakening its function of leading and affecting its guiding role.At the same time,the development of new media can not only broaden the cultivation mode of core values and highlight the powerful force of core values,but also stimulate the people to highly identify with core values.At present,the new media has become the main tool and mainstream position for the dissemination of core values,so it is necessary to continuously innovate the communication mechanism of the core values,and enhance their pertinence and effectiveness communication,so that they can play a leading role in the whole society better.展开更多
基金supported by Key Discipline Construction Program of Beijing Municipal Commission of Education (XK10008043)
文摘Most real application processes belong to a complex nonlinear system with incomplete information. It is difficult to estimate a model by assuming that the data set is governed by a global model. Moreover, in real processes, the available data set is usually obtained with missing values. To overcome the shortcomings of global modeling and missing data values, a new modeling method is proposed. Firstly, an incomplete data set with missing values is partitioned into several clusters by a K-means with soft constraints （KSC） algorithm, which incorporates soft constraints to enable clustering with missing values. Then a local model based on each group is developed by using SVR algorithm, which adopts a missing value insensitive （MVI） kernel to investigate the missing value estimation problem. For each local model, its valid area is gotten as well. Simulation results prove the effectiveness of the current local model and the estimation algorithm.
基金Project(2019zzts678)supported by the Fundamental Research Funds for the Central Universities,China。
文摘In this study,different influence mechanisms associated with temperatures and pH values were investigated through cemented paste backfill(CPB)systems.CPB samples were prepared with temperatures ranging from 10 to 50℃ in 10℃ increments and pH values of 3,7,and 13.Then,the CPB mixture were subjected to rheological tests,thermogravimetric analysis(TG),derivative thermogravimetry analysis(DTG),Fourier-transform infrared spectroscopy(FT-IR),and scanning electron microscopy(SEM).Results demonstrated that the temperatures had significant effects on the rheological properties of CPB,whereas the effects of pH values were relatively unapparent.Higher temperatures(over 20℃)were prone to bring higher shear stress,yield stress,and apparent viscosity with the same pH value condition.However,an overly high temperature(50℃)cannot raise the apparent viscosity.Non-neutral conditions,for pH values of 3 and 13,could strengthen the shear stress and apparent viscosity at the same temperature.Two different yield stress curves could be discovered by uprising pH values,which also led to apparent viscosity of two various curves under the same temperatures(under 50℃).Microscopically,rheological properties of CPB were affected by temperatures and pH values which enhanced or reduced the cement hydration procedures,rates,products and space structures.
基金the periodic research result of the project"Research on the Construction of Marxist Popular Carrier"(Project No.:15SQWT16)commissioned by the Central Bureau of Compiler
文摘Xi Jinping's Thought on Youth Values and Its Guidance to Contemporary
文摘What is success? How is success measured? Willa Cather provides us two sets of values.To some people, success is measured in terms of money. To some success means choosing one’s own life and realizing one’s own values. In the novel The Sculptor’s Funeral Cather portrays an artist, who breaks the bondage of the old environment, and becomes a successful sculptor. However, he is regarded as a failure by his local people because the values by which they judge success are not the same.
基金supported by the National Natural Science Foundation of China(72293573)the New Era Education Quality Project of Anhui Province(2022zyxwjxalk003)the Fundamental Research Funds for the Central Universities(YD2160004004,WK2040000090).
文摘This study analyses all A-share listed companies from 2015 to 2020 to empirically examine the impact of inquiry supervision on corporate value and the moderating influence of corporate social responsibility(CSR)on this relationship.Research has shown that inquiry supervision significantly reduces corporate value,and the corporate social responsibility previously performed by companies can weaken this negative impact.Furthermore,the heterogeneity test based on internal and external controls shows that the reputation protection effect of CSR is more significant for companies with a higher proportion of independent directors,companies with a higher proportion of institutional investors investing in stocks,regions with a higher degree of marketization,and regions with a higher level of rule of law.The research in this article validates the effectiveness of reputation protection and verifies that reputation protection,as an informal mechanism,is easier to fulfil a role in areas where formal mechanisms are perfect.In other words,formal and informal mechanisms appear to complement each other.These findings provide empirical insights into the governance of CSR.
基金Heilongjiang Higher Education Scientific Research Key Project(14Z009)
文摘It is values that determine one’s future direction of development.The young top innovative scientific talents are outstanding ones both in the scientific field and the youth,whose values not only determine their own future directions of development,but also the development and future of the whole country.In order to cultivate their values,it is quite necessary to strengthen the thought guidance,develop the core socialist values,and adhere to morality education,down-to-earth practice,and the pursuit of truth.Moreover,the individual development of the talents needs to be emphasized and their creativity needs to be stimulated.The synergistic functions of the organizations and departments should be given full play to in order to utilize the culture education strategy.
基金Project supported by National Basic Research Program of China (973 Program) (2009CB724508)
文摘Before diagnosed by DGA (dissolved gas analysis) methods, gas caution values, which index the level of gas formation, must be used to evaluate the possibility of incipient faults to reduce the misdiagnosis in the normal state. However, the calculation of these values is now only based on cumulative percentile method without taking into account operating conditions. To overcome this disadvantage, a new approach to calculate the transformer caution values is presented. This approach is based on statistical distribution and correlation analysis, and it takes the individual variation and fluctuation caused by internal and external factors into consideration. Then 6550 transformer DGA data collected from North China Power Grid are analyzed in this paper. The results show that the volume fraction of TH (total hydrocarbon) approximately obeys normal distribution when the 3-sigma rule is used to calculate its caution value. The volume fraction of CO has a strong positive correlation with oil temperature. For H2, the negative correlation with oil temperature is significant when the volume fraction is not very low. The caution value curves for CO and H2 are obtained by regression analyses. Thus, the gas caution values/curves obtained using the new method are not always constant, but vary with oil temperature, which is an advantage of the proposed method compared with cumulative percentile method. The variation of gas caution values/curves also reflects the influence of the external factors, for instance, va- rying with monitoring time ensures that the gas caution values are always consistent with operating status.
文摘Core value is an important guarantee for building a harmonious socialist society and the ideological and moral basis of the unity of the people of all ethnic groups in our country.In recent years,the cultivation and practice of core values have become more and more popular;the main thoughts of core values derive fromtraditional culture.In retrospect of our traditional culture,Confucian culture is not allowed to be ignored.Therefore,in the process of fostering and practicing the core values,we need to analyze the combination between Confucian culture and core values,and ingeniously fuse the Confucian culture into the core values,so that the connotation of the core values would more abundant.
文摘The spiritual needs are uniquely human,which are the conditions of human existence and development.In the process of socialist modernization construction in our country,the social economy develops rapidly and the material basis compacts continuously.Yet people' s development is far behind.The socialist core values can lead people' s spiritual needs to be healthy and virtuous.It can also build the civic spiritual support system for social development,as well as help people establish the values and faiths that adapt to the socialist construction in our country.
基金sponsored by the 2016 Key grant of Anhui Humanity and Social Science(No.SK2016A0508)
文摘The rapid development of information technology and the fierce conflict of multiple values lead information communication to present different characteristics in the new media era,which has brought both challenges and opportunities to the cultivation and dissemination of core values.With the development of new media,the environment for cultivating core values is becoming increasingly complex,and the main content of core values is being dispelled,thus weakening its function of leading and affecting its guiding role.At the same time,the development of new media can not only broaden the cultivation mode of core values and highlight the powerful force of core values,but also stimulate the people to highly identify with core values.At present,the new media has become the main tool and mainstream position for the dissemination of core values,so it is necessary to continuously innovate the communication mechanism of the core values,and enhance their pertinence and effectiveness communication,so that they can play a leading role in the whole society better.
基金the soft science research project of Henan Department of Science and Technology Research on the Translation of the Public Sentiment under the Background of Constructing the National Central City 182400410360The phased objectives of the Tender Subject of 2017 Henan Government Decision the Cultural Tourism Development under the Strategy of“One Belt One Road”2017B107
