Myocardium tissue of Kunming mouse embryonic bodies was cultured with the feeder layer of their embryonic fibroblasts in TCM199.The results indicate that some piece of myocardium tissue can be cultured in the feeder l...Myocardium tissue of Kunming mouse embryonic bodies was cultured with the feeder layer of their embryonic fibroblasts in TCM199.The results indicate that some piece of myocardium tissue can be cultured in the feeder layer;Their contracting frequency changed with the temperature and the morphology changed with the time;It was not all pieces of tissue with the same appearance that could contract,even though some of them grow well.展开更多
A Little Princess is one of the great works of children's literature.It has one successful play adaption on Broadway,five film adaptions and seven television adaptions worldwide.It has remained appealing since its...A Little Princess is one of the great works of children's literature.It has one successful play adaption on Broadway,five film adaptions and seven television adaptions worldwide.It has remained appealing since its publication in 1905.This paper analyzes the characteristics of Sara to explore the charm of A Little Princess.展开更多
A key to understand Immanuel Kant's philosophy is his views on humanity,and the cornerstone of Kant’s philosophy is the idea that“beauty is a symbol of morality”.From the perspective of his views on humanity,we...A key to understand Immanuel Kant's philosophy is his views on humanity,and the cornerstone of Kant’s philosophy is the idea that“beauty is a symbol of morality”.From the perspective of his views on humanity,we can have a deep understanding of Kant*s analysis of beauty and the sublime and his aesthetics.The focus of Kant's aesthetics is the realization of human freedom and the sublime,and this is of special humanistic feature.展开更多
Live video streaming is a new form of network communication for the real-time interaction between network hostsand audiences. Its application has brought much convenience to people＇s study, work, and life, and hassim...Live video streaming is a new form of network communication for the real-time interaction between network hostsand audiences. Its application has brought much convenience to people＇s study, work, and life, and hassimultaneously caused some phenomena against public order and good deeds. From the perspective ofepistemology, they are the consequences of human＇s cognitive fragmentation, superficiality, and human＇suncontrolled self-discipline ability. In order to fundamentally reduce or avoid the occurrence of these socialproblems caused by live video streaming, the key points might be not only supervising and guiding live videostreaming in time, but also improving the participants＇, especially juveniles＇ abilities of rational judgment andself-discipline through providing them with specific publicity and education. In this aspect, the thoughts of＂observing things by Heart＂ and ＂emotion dominated by rationality＂ in traditional Chinese culture can be fully usedto strengthen the assessment and governance of phenomena in live video streaming.展开更多
It is generally accepted that because of conflicts of interest, the public accounting firms provide auditing services combined with consulting services to their clients may be one of the main causes of financial repor...It is generally accepted that because of conflicts of interest, the public accounting firms provide auditing services combined with consulting services to their clients may be one of the main causes of financial reporting fraud. Separating the consulting services from the auditing services becomes a general trend at present. It is indispensable to determine the boundary of auditing and consulting, and simultaneously regulating the internal control within their respective fields. On the premise of transparency of financial information, the auditing service has been separated in some countries, in order to improve the credibility of accounting information. Relevant measures include measures conducted by the management officials to ensure the quality of financial report, enhancement of the responsibilities of the auditors, and the standard formulated by the government to evaluate the auditing process and auditing opinion. Statement on conceptual framework related to assurance engagement, proposed by the Japanese government （below called ＂statement proposed by the Japanese government for short）, which verifies the credibility of financial information, is an example of the above-mentioned trend. Compared with Japan, China has different regulations and laws in relation to the assurance engagement.展开更多
One of the most outstanding characteristics of library legislation in China is that theoretical research and legislative practice are mutually reinforcing, making important issues and basic rules and regulations close...One of the most outstanding characteristics of library legislation in China is that theoretical research and legislative practice are mutually reinforcing, making important issues and basic rules and regulations closely associated with legislation and the research focus. A national library law is currently being enacted while several local library legislations have already seen fruitful results. In the enactment of 'Regulations for the Protection of Information Network Dissemination Rights', the library professional participated for the first time in enacting a national copyright law, which led to unprecedented flourishing of library activities and copyright studies. The promulgation of another legal framework,'Government Information Disclosure Regulations' further advanced the research on related issues and pushed forward government information services in public libraries in the same way. A new landmark for library legislation in recent years is the promulgation of'Guidelines for Land Utilization for Public Library Construction' and 'Public Library Construction Standards', while the framing of 'Rules of Professional Ethics for Librarians in China(On trial)' and the 'Library Service Manifesto' give indication that a framework of self-disciplinary measures of library professionals is established.展开更多
Nowadays it's fashionable for many Chinese to have a blog to record their thoughts, favorite things, daily life and even their own private secrets, garnering instant feedback from friends and strangers. "Do y...Nowadays it's fashionable for many Chinese to have a blog to record their thoughts, favorite things, daily life and even their own private secrets, garnering instant feedback from friends and strangers. "Do you write a blog?" has become a common question when urban Chinese people meet.展开更多
Due to the advantages such as low line cost,low transmission loss,and high power supply reliability,DC distribution networks have become the main development trend for future distribution networks.In this paper,a typi...Due to the advantages such as low line cost,low transmission loss,and high power supply reliability,DC distribution networks have become the main development trend for future distribution networks.In this paper,a typical DC distribution network with multiple voltage levels is considered as a research object.It is proposed that the interface converters between DC buses with different voltage levels be implemented through the series-parallel combination of full-bridge LLC resonant converters.To realize the decentralized self-discipline control of DC voltage under various working conditions,different slack buses are prepared according to the voltage ranges of the DC buses,and the voltage regulation modes of the DC distribution network are divided into main voltage regulation mode,backup voltage regulation mode,and off-grid voltage droop regulation mode.By introducing a voltage coefficient related to DC voltage deviation as a basis for mode switching,the voltage fluctuations caused by slow switching between control modes in the method of traditional voltage margin control is reduced,facilitating fast and smooth switching between different voltage regulation modes.Finally,a simulation model for DC distribution networks is constructed utilizing MATLAB/Simulink.Simulation results verify the effectiveness and feasibility of the proposed voltage regulation modes and switching methods for DC distribution networks.Finally,an experimental platform is also constructed to verify the feasibility of the mode switching method proposed in this paper.展开更多
基金Project are supported by Heilongjiang Natural Science found
文摘Myocardium tissue of Kunming mouse embryonic bodies was cultured with the feeder layer of their embryonic fibroblasts in TCM199.The results indicate that some piece of myocardium tissue can be cultured in the feeder layer;Their contracting frequency changed with the temperature and the morphology changed with the time;It was not all pieces of tissue with the same appearance that could contract,even though some of them grow well.
文摘A Little Princess is one of the great works of children's literature.It has one successful play adaption on Broadway,five film adaptions and seven television adaptions worldwide.It has remained appealing since its publication in 1905.This paper analyzes the characteristics of Sara to explore the charm of A Little Princess.
基金Key project of Humanities and Social Sciences of Anhui provincial Education Department(SK2017A0380)General project of Humanities and Social Sciences of Anhui provincial Education Department(SKHS2016B08)School-level Research Platform(KYPT201816)
文摘A key to understand Immanuel Kant's philosophy is his views on humanity,and the cornerstone of Kant’s philosophy is the idea that“beauty is a symbol of morality”.From the perspective of his views on humanity,we can have a deep understanding of Kant*s analysis of beauty and the sublime and his aesthetics.The focus of Kant's aesthetics is the realization of human freedom and the sublime,and this is of special humanistic feature.
文摘Live video streaming is a new form of network communication for the real-time interaction between network hostsand audiences. Its application has brought much convenience to people＇s study, work, and life, and hassimultaneously caused some phenomena against public order and good deeds. From the perspective ofepistemology, they are the consequences of human＇s cognitive fragmentation, superficiality, and human＇suncontrolled self-discipline ability. In order to fundamentally reduce or avoid the occurrence of these socialproblems caused by live video streaming, the key points might be not only supervising and guiding live videostreaming in time, but also improving the participants＇, especially juveniles＇ abilities of rational judgment andself-discipline through providing them with specific publicity and education. In this aspect, the thoughts of＂observing things by Heart＂ and ＂emotion dominated by rationality＂ in traditional Chinese culture can be fully usedto strengthen the assessment and governance of phenomena in live video streaming.
文摘It is generally accepted that because of conflicts of interest, the public accounting firms provide auditing services combined with consulting services to their clients may be one of the main causes of financial reporting fraud. Separating the consulting services from the auditing services becomes a general trend at present. It is indispensable to determine the boundary of auditing and consulting, and simultaneously regulating the internal control within their respective fields. On the premise of transparency of financial information, the auditing service has been separated in some countries, in order to improve the credibility of accounting information. Relevant measures include measures conducted by the management officials to ensure the quality of financial report, enhancement of the responsibilities of the auditors, and the standard formulated by the government to evaluate the auditing process and auditing opinion. Statement on conceptual framework related to assurance engagement, proposed by the Japanese government （below called ＂statement proposed by the Japanese government for short）, which verifies the credibility of financial information, is an example of the above-mentioned trend. Compared with Japan, China has different regulations and laws in relation to the assurance engagement.
文摘One of the most outstanding characteristics of library legislation in China is that theoretical research and legislative practice are mutually reinforcing, making important issues and basic rules and regulations closely associated with legislation and the research focus. A national library law is currently being enacted while several local library legislations have already seen fruitful results. In the enactment of 'Regulations for the Protection of Information Network Dissemination Rights', the library professional participated for the first time in enacting a national copyright law, which led to unprecedented flourishing of library activities and copyright studies. The promulgation of another legal framework,'Government Information Disclosure Regulations' further advanced the research on related issues and pushed forward government information services in public libraries in the same way. A new landmark for library legislation in recent years is the promulgation of'Guidelines for Land Utilization for Public Library Construction' and 'Public Library Construction Standards', while the framing of 'Rules of Professional Ethics for Librarians in China(On trial)' and the 'Library Service Manifesto' give indication that a framework of self-disciplinary measures of library professionals is established.
文摘Nowadays it's fashionable for many Chinese to have a blog to record their thoughts, favorite things, daily life and even their own private secrets, garnering instant feedback from friends and strangers. "Do you write a blog?" has become a common question when urban Chinese people meet.
基金supported by Fundamental Research Funds for the Central Universities(No.2019JBM057)。
文摘Due to the advantages such as low line cost,low transmission loss,and high power supply reliability,DC distribution networks have become the main development trend for future distribution networks.In this paper,a typical DC distribution network with multiple voltage levels is considered as a research object.It is proposed that the interface converters between DC buses with different voltage levels be implemented through the series-parallel combination of full-bridge LLC resonant converters.To realize the decentralized self-discipline control of DC voltage under various working conditions,different slack buses are prepared according to the voltage ranges of the DC buses,and the voltage regulation modes of the DC distribution network are divided into main voltage regulation mode,backup voltage regulation mode,and off-grid voltage droop regulation mode.By introducing a voltage coefficient related to DC voltage deviation as a basis for mode switching,the voltage fluctuations caused by slow switching between control modes in the method of traditional voltage margin control is reduced,facilitating fast and smooth switching between different voltage regulation modes.Finally,a simulation model for DC distribution networks is constructed utilizing MATLAB/Simulink.Simulation results verify the effectiveness and feasibility of the proposed voltage regulation modes and switching methods for DC distribution networks.Finally,an experimental platform is also constructed to verify the feasibility of the mode switching method proposed in this paper.
