In this paper a new .mnultidimensional time series forecasting scheme based on the empirical orthogonal function (EOF) stepwise iteration process is introduced. The scheme is tested in a series of forecast experiments...In this paper a new .mnultidimensional time series forecasting scheme based on the empirical orthogonal function (EOF) stepwise iteration process is introduced. The scheme is tested in a series of forecast experiments of Nino3 SST anomalies and Tahiti-Darwin SO index. The results show that the scheme is feasible and ENSO predictable.展开更多
We study how can an angular momentum coherent state |τ> keeps its form-invariant during time evolution governed by the Hamiltonian H = f(t)J++ f^*(t)J-+ g(t)Jz. We discuss this topic in the context of boson realiz...We study how can an angular momentum coherent state |τ> keeps its form-invariant during time evolution governed by the Hamiltonian H = f(t)J++ f^*(t)J-+ g(t)Jz. We discuss this topic in the context of boson realization of |τ>. By employing the entangled state representation |ζ> and deriving a new binomial theorem involving two-subscript Hermite polynomials, we derive the wave function <ζ|τ>, which turns out to be a single-subscript Hermite polynomial. Based on this result the maintenance of angular momentum coherent state during time evolution is examined, and the value of τ(t) is totally determined by the parameters involved in the Hamiltonian.展开更多
Science and technology proceed by leaps and bounds; our network is growing at an alarming rate which is reflected in the rapid development and popularization. Facing highly developed information technology, and the ra...Science and technology proceed by leaps and bounds; our network is growing at an alarming rate which is reflected in the rapid development and popularization. Facing highly developed information technology, and the rapid development of the network, strengthen ideological and political education is very important, the network has put impressive and comprehensive impact on the university teachers and students＇ lives, learning, work, moral, ideological and political attitudes, moral outlook, political literacy, life values, and ideological and political education in universities is facing a new challenge ; Meanwhile, the network also provides many new challenges and opportunities, expanding the channel and space of ideological and political education, it also can improve the quality of the main ideological and political education of high demand. Therefore, the educators of ideological and political education in colleges should keep up the pace of the rapid development of large- era, became not only who has a good ideological and political quality and comprehensive cultural knowledge quality, but also has very high literal ability and a solid information of network technology skills, so they could give full play to the advantages of information networks, do research and create a new situation in a large network of ideological and political education, then make the traditional ideological and political education produce a qualitative leap.展开更多
Objective The NE China is located in the eastern segment of the Central Asian Orogenic Belt（CAOB）,which is a large accretionary orogen between the Siberian Craton and the North China Craton（NCC）.Many researches ha...Objective The NE China is located in the eastern segment of the Central Asian Orogenic Belt（CAOB）,which is a large accretionary orogen between the Siberian Craton and the North China Craton（NCC）.Many researches have discussed about the evolution of the Paleo-Asian Ocean（PAO）in the eastern CAOB.However,展开更多
The decay diagrams of radioactive nuclei are the obvious indication of the main properties shown by the nuclei at low states of excitement and of the basic aspects of nuclear physics.They are extensively applied in in...The decay diagrams of radioactive nuclei are the obvious indication of the main properties shown by the nuclei at low states of excitement and of the basic aspects of nuclear physics.They are extensively applied in industry’,agriculture,energy,national defense,medical science,the environment,and metrology,as well as in astronomy,archaeology,geology,biology,chemistry and other basic sciences.Therefore,they are always focuses of interest.展开更多
In this paper, the new mapping approach and the new extended auxiliary equation approach were used to investigate the exact traveling wave solutions of (2 + 1)-dimensional time-fractional Zoomeron equation with the co...In this paper, the new mapping approach and the new extended auxiliary equation approach were used to investigate the exact traveling wave solutions of (2 + 1)-dimensional time-fractional Zoomeron equation with the conformable fractional derivative. As a result, the singular soliton solutions, kink and anti-kink soliton solutions, periodic function soliton solutions, Jacobi elliptic function solutions and hyperbolic function solutions of (2 + 1)-dimensional time-fractional Zoomeron equation were obtained. Finally, the 3D and 2D graphs of some solutions were drawn by setting the suitable values of parameters with Maple, and analyze the dynamic behaviors of the solutions.展开更多
Lonicerae japonicaeFlos (LJF) is widely used in traditional Chinese medicines for the treatment of various diseases, which is now in great demand every year and has a broad development prospect. However, the flowering...Lonicerae japonicaeFlos (LJF) is widely used in traditional Chinese medicines for the treatment of various diseases, which is now in great demand every year and has a broad development prospect. However, the flowering phase of common LJF varieties is so short, which seriously restricts the development of LJF industry. As a new cultivated kind of Lonicerae japonicae Flos, “Hua Jin 6” has characteristics in long flowering phase and conveniently picking, which makes it have a broad development prospect. The aim of this study is to provide scientific guidance for its suitable harvest period by measuring yield and quality of “Hua Jin 6” from different harvest time. Studies show that flower size had a slowly rising trend from the first day to the seventh day, and then slowly declined or kept stable. There were no significant differences of total phenolic acid contents in different samples from different days, but contents of total flavonoids were on the rise and up to maximum in the ninth day. The contents of total iridoids had an increasing tendency from the first day to the fifth day and then kept relatively stable in other days. We demonstrated that the quality of “Hua Jin 6” is relatively stable and suitable for harvesting in all flower buds white stage in term of HPLC fingerprints. Our findings can make it possible to select the suitable time for different harvest purpose.展开更多
Due to the mobility of users in an organization,inclusion of dynamic attributes such as time and location becomes the major challenge in Ciphertext-Policy Attribute-Based Encryption(CP-ABE).By considering this challen...Due to the mobility of users in an organization,inclusion of dynamic attributes such as time and location becomes the major challenge in Ciphertext-Policy Attribute-Based Encryption(CP-ABE).By considering this challenge;we focus to present dynamic time and location information in CP-ABE with mul-ti-authorization.Atfirst,along with the set of attributes of the users,their corre-sponding location is also embedded.Geohash is used to encode the latitude and longitude of the user’s position.Then,decrypt time period and access time period of users are defined using the new time tree(NTT)structure.The NTT sets the encrypted duration of the encrypted data and the valid access time of the private key on the data user’s private key.Besides,single authorization of attribute authority(AA)is extended as multi authorization for enhancing the effectiveness of key generation.Simulation results depict that the proposed CP-ABE achieves better encryption time,decryption time,security level and memory usage.Namely,encryption time and decryption time of the proposed CP-ABE are reduced to 19%and 16%than that of existing CP-ABE scheme.展开更多
运行灵活是分布式绿电深度集成的主动配电网(active distribution network,ADN)的显著特征,该文提出一种考虑灵活性的主动配电网源-网-储多元协调规划方法。计及中长期规划和短期运行,构建ADN的多时间尺度灵活性评价指标体系,涵盖功率...运行灵活是分布式绿电深度集成的主动配电网(active distribution network,ADN)的显著特征,该文提出一种考虑灵活性的主动配电网源-网-储多元协调规划方法。计及中长期规划和短期运行,构建ADN的多时间尺度灵活性评价指标体系,涵盖功率调节和网架调节不同维度,包括时段、馈线、配电网不同层级。接着,提出考虑灵活性的源-网-储多元双层规划模型,上层以年综合成本与中长期灵活性为多目标决策多元件规划方案,下层寻优各元件日运行方式,旨在提升运行成本与短期灵活性隶属满意度。以逼近理想解排序法来处理规划层多目标,制定基于和声搜索和粒子群算法的变量编码及模型求解策略。最后,通过六馈线ADN算例论证规划方案及日运行方式的合理性,基于灵活性指标组成分析,并验证所提指标的有效性。展开更多
This paper compares the differences of information presentation in the straight news reports about international air disasters in ChD （China Daily） and NYT （The New York Times）. The type of straight news report is...This paper compares the differences of information presentation in the straight news reports about international air disasters in ChD （China Daily） and NYT （The New York Times）. The type of straight news report is regarded as the most objective news report in the journalistic field. The purpose of this research is to find out the different journalistic cultures or orientations between Chinese and American newspapers when they report the same world event. This paper finds that ChD prefers to provide more information for the consequences of the event and reactions to it usually by making general and static statements. NYT attaches more importance to background introduction and is more liable to use detailed and dynamic description展开更多
The new generation of the times is the latest requirement for young people in the new era,and it is the latest training goal for young people put forward by the Party and the country in the face of the second centenni...The new generation of the times is the latest requirement for young people in the new era,and it is the latest training goal for young people put forward by the Party and the country in the face of the second centennial goal.At the 19th National Congress,it was put forward by the country that the concept of“new generation of the times”for the first time,indicating the training direction and theoretical guidance for the new generation of the times.The new age requires young people to have firm ideals and beliefs,excellent skills,and a great spirit of responsibility.The proposition of cultivating a new generation of the times is a deep exploration and summary of Marx’s theory of“all-round human development,”Lenin’s youth view and the education view of excellent traditional Chinese culture,and the proposition needs to strengthen the leadership of the Party,give play to the leading role of socialist core values,and the youth themselves should actively act to realize the transformation of theoretical and practical results.展开更多
文摘In this paper a new .mnultidimensional time series forecasting scheme based on the empirical orthogonal function (EOF) stepwise iteration process is introduced. The scheme is tested in a series of forecast experiments of Nino3 SST anomalies and Tahiti-Darwin SO index. The results show that the scheme is feasible and ENSO predictable.
基金Project supported by the National Natural Science Foundation of China(Grant No.11347026)the Natural Science Foundation of Shandong Province,China(Grant Nos.ZR2016AM03 and ZR2017MA011)
文摘We study how can an angular momentum coherent state |τ> keeps its form-invariant during time evolution governed by the Hamiltonian H = f(t)J++ f^*(t)J-+ g(t)Jz. We discuss this topic in the context of boson realization of |τ>. By employing the entangled state representation |ζ> and deriving a new binomial theorem involving two-subscript Hermite polynomials, we derive the wave function <ζ|τ>, which turns out to be a single-subscript Hermite polynomial. Based on this result the maintenance of angular momentum coherent state during time evolution is examined, and the value of τ(t) is totally determined by the parameters involved in the Hamiltonian.
文摘Science and technology proceed by leaps and bounds; our network is growing at an alarming rate which is reflected in the rapid development and popularization. Facing highly developed information technology, and the rapid development of the network, strengthen ideological and political education is very important, the network has put impressive and comprehensive impact on the university teachers and students＇ lives, learning, work, moral, ideological and political attitudes, moral outlook, political literacy, life values, and ideological and political education in universities is facing a new challenge ; Meanwhile, the network also provides many new challenges and opportunities, expanding the channel and space of ideological and political education, it also can improve the quality of the main ideological and political education of high demand. Therefore, the educators of ideological and political education in colleges should keep up the pace of the rapid development of large- era, became not only who has a good ideological and political quality and comprehensive cultural knowledge quality, but also has very high literal ability and a solid information of network technology skills, so they could give full play to the advantages of information networks, do research and create a new situation in a large network of ideological and political education, then make the traditional ideological and political education produce a qualitative leap.
基金supported by the National Natural Science Foundation of China(grants No.41372108 and41602110)the Research Fund for the Doctoral Program of Higher Education of China(grant No.20133718130001)+1 种基金the Qingdao Postdoctoral Applied Research Project(grant No.2015193)the SDUST Research Fund(grant No.2015TDJH101)
文摘Objective The NE China is located in the eastern segment of the Central Asian Orogenic Belt（CAOB）,which is a large accretionary orogen between the Siberian Craton and the North China Craton（NCC）.Many researches have discussed about the evolution of the Paleo-Asian Ocean（PAO）in the eastern CAOB.However,
文摘The decay diagrams of radioactive nuclei are the obvious indication of the main properties shown by the nuclei at low states of excitement and of the basic aspects of nuclear physics.They are extensively applied in industry’,agriculture,energy,national defense,medical science,the environment,and metrology,as well as in astronomy,archaeology,geology,biology,chemistry and other basic sciences.Therefore,they are always focuses of interest.
文摘In this paper, the new mapping approach and the new extended auxiliary equation approach were used to investigate the exact traveling wave solutions of (2 + 1)-dimensional time-fractional Zoomeron equation with the conformable fractional derivative. As a result, the singular soliton solutions, kink and anti-kink soliton solutions, periodic function soliton solutions, Jacobi elliptic function solutions and hyperbolic function solutions of (2 + 1)-dimensional time-fractional Zoomeron equation were obtained. Finally, the 3D and 2D graphs of some solutions were drawn by setting the suitable values of parameters with Maple, and analyze the dynamic behaviors of the solutions.
文摘Lonicerae japonicaeFlos (LJF) is widely used in traditional Chinese medicines for the treatment of various diseases, which is now in great demand every year and has a broad development prospect. However, the flowering phase of common LJF varieties is so short, which seriously restricts the development of LJF industry. As a new cultivated kind of Lonicerae japonicae Flos, “Hua Jin 6” has characteristics in long flowering phase and conveniently picking, which makes it have a broad development prospect. The aim of this study is to provide scientific guidance for its suitable harvest period by measuring yield and quality of “Hua Jin 6” from different harvest time. Studies show that flower size had a slowly rising trend from the first day to the seventh day, and then slowly declined or kept stable. There were no significant differences of total phenolic acid contents in different samples from different days, but contents of total flavonoids were on the rise and up to maximum in the ninth day. The contents of total iridoids had an increasing tendency from the first day to the fifth day and then kept relatively stable in other days. We demonstrated that the quality of “Hua Jin 6” is relatively stable and suitable for harvesting in all flower buds white stage in term of HPLC fingerprints. Our findings can make it possible to select the suitable time for different harvest purpose.
文摘Due to the mobility of users in an organization,inclusion of dynamic attributes such as time and location becomes the major challenge in Ciphertext-Policy Attribute-Based Encryption(CP-ABE).By considering this challenge;we focus to present dynamic time and location information in CP-ABE with mul-ti-authorization.Atfirst,along with the set of attributes of the users,their corre-sponding location is also embedded.Geohash is used to encode the latitude and longitude of the user’s position.Then,decrypt time period and access time period of users are defined using the new time tree(NTT)structure.The NTT sets the encrypted duration of the encrypted data and the valid access time of the private key on the data user’s private key.Besides,single authorization of attribute authority(AA)is extended as multi authorization for enhancing the effectiveness of key generation.Simulation results depict that the proposed CP-ABE achieves better encryption time,decryption time,security level and memory usage.Namely,encryption time and decryption time of the proposed CP-ABE are reduced to 19%and 16%than that of existing CP-ABE scheme.
文摘运行灵活是分布式绿电深度集成的主动配电网(active distribution network,ADN)的显著特征,该文提出一种考虑灵活性的主动配电网源-网-储多元协调规划方法。计及中长期规划和短期运行,构建ADN的多时间尺度灵活性评价指标体系,涵盖功率调节和网架调节不同维度,包括时段、馈线、配电网不同层级。接着,提出考虑灵活性的源-网-储多元双层规划模型,上层以年综合成本与中长期灵活性为多目标决策多元件规划方案,下层寻优各元件日运行方式,旨在提升运行成本与短期灵活性隶属满意度。以逼近理想解排序法来处理规划层多目标,制定基于和声搜索和粒子群算法的变量编码及模型求解策略。最后,通过六馈线ADN算例论证规划方案及日运行方式的合理性,基于灵活性指标组成分析,并验证所提指标的有效性。
文摘This paper compares the differences of information presentation in the straight news reports about international air disasters in ChD （China Daily） and NYT （The New York Times）. The type of straight news report is regarded as the most objective news report in the journalistic field. The purpose of this research is to find out the different journalistic cultures or orientations between Chinese and American newspapers when they report the same world event. This paper finds that ChD prefers to provide more information for the consequences of the event and reactions to it usually by making general and static statements. NYT attaches more importance to background introduction and is more liable to use detailed and dynamic description
文摘The new generation of the times is the latest requirement for young people in the new era,and it is the latest training goal for young people put forward by the Party and the country in the face of the second centennial goal.At the 19th National Congress,it was put forward by the country that the concept of“new generation of the times”for the first time,indicating the training direction and theoretical guidance for the new generation of the times.The new age requires young people to have firm ideals and beliefs,excellent skills,and a great spirit of responsibility.The proposition of cultivating a new generation of the times is a deep exploration and summary of Marx’s theory of“all-round human development,”Lenin’s youth view and the education view of excellent traditional Chinese culture,and the proposition needs to strengthen the leadership of the Party,give play to the leading role of socialist core values,and the youth themselves should actively act to realize the transformation of theoretical and practical results.
