According to different mechanisms of dormancy,seeds of Gagea nigra L.Z.Shue were treated with different methods so as to investigate the effects of different treatments on seed germination of G.nigra.The results showe...According to different mechanisms of dormancy,seeds of Gagea nigra L.Z.Shue were treated with different methods so as to investigate the effects of different treatments on seed germination of G.nigra.The results showed that at 4 ℃,the seeds of G.nigra began to germinate on day 32 with germination period of 80 d and germination rate of 72%;room temperature（25 ℃） and acid and alkali treatments were all unsuitable for the germination of G.nigra seeds;no significant differences were found in germination rate of G.nigra seeds among warm water（50℃）,ultrasound and 200 mg/L GA_3treatments（P 0.05）;seed coat-removing treatment effectively promoted the germination of G.nigra seeds（P =0.002 0.01） with germination rate of 88%;seed coat piercing ＋ 200 mg/L GA_3 and 500 mg/L GA_3＋15% H_2O_2 treatments effectively promoted the germination of G.nigra seeds with germination rates of 84% and 82%,respectively（P0.05）;the germination vigor of G.nigra seeds in the seed coat piercing ＋ 200 mg/L GA_3 treatment was highest,and it was significantly higher than those in the other treatments.展开更多
In order to save energy and make more efficient use of wireless channel, this article puts forward an energy saving cooperative relaying scheme which actuates the cooperative transmis- sion only when the feedback from...In order to save energy and make more efficient use of wireless channel, this article puts forward an energy saving cooperative relaying scheme which actuates the cooperative transmis- sion only when the feedback from the destination indicates failure of the direct transmission. The proposed scheme selects the optimal relay and its corresponding transmission power in each time slot based on channel condition and residual ener- gy with the objective of minimizing energy con- sumption and extending network lifetime. In the study, the f＇mite-state Markov channel model is used to characterize the correlation structure of channel fading in wireless networks, and the pro- cedure of relay selection and transmission power decision is formulated as a M arkov decision process. Numerical and simulation results show that the proposed scheme consumes less energy and prolongs the network lifetime.展开更多
The terms ＂soul,＂ ＂spirit,＂ ＂breath,＂ and ＂life＂ occur several times each in the Book of Job. A proper understanding of these terms in Scripture, especially ＂soul＂ and ＂spirit＂ is integral to understanding...The terms ＂soul,＂ ＂spirit,＂ ＂breath,＂ and ＂life＂ occur several times each in the Book of Job. A proper understanding of these terms in Scripture, especially ＂soul＂ and ＂spirit＂ is integral to understanding the state of the dead, among others. These terms are used in diverse contexts with interchangeable nuances in the Book of Job. A living （＂life＂） person （＂soul＂） consists of the body/flesh plus the life principle （＂spirit＂） of which ＂breath＂ is a concrete expression. In poetic contexts, the terminologies denote the physical （＂soul＂/＂life＂）, appetitive （＂soul＂/＂life＂）, psychical （＂spirit＂/＂breath＂）, and emotional （＂soul＂/＂spirit＂） characteristics of the human being. While ＂soul＂ and ＂life＂ tend towards physieality and therefore can be used synonymously for the whole person, ＂spirit＂ and ＂breath＂ tend towards non-physicality and express such phenomena as intellection and wind. A study of these terminologies in other poetic texts in the Hebrew Bible may evince similar semantic configurations as found in the Book of Job.展开更多
Chinese organization name recognition is hard and important in natural language processing. To reduce tagged corpus and use untagged corpus,we presented combing Co-training with support vector machines (SVM) and condi...Chinese organization name recognition is hard and important in natural language processing. To reduce tagged corpus and use untagged corpus,we presented combing Co-training with support vector machines (SVM) and conditional random fields (CRF) to improve recognition results. Based on principles of uncorrelated and compatible,we constructed different classifiers from different views within SVM or CRF alone and combination of these two models. And we modified a heuristic untagged samples selection algorithm to reduce time complexity. Experimental results show that under the same tagged data,Co-training has 10% F-measure higher than using SVM or CRF alone; under the same F-measure,Co-training saves at most 70% of tagged data to achieve the same performance.展开更多
With the rapid development of China's foreign trade, the coastal and inland waterway transport has been increased rapidly. The potential market for marine engines is more and more obvious. The measurement of the e...With the rapid development of China's foreign trade, the coastal and inland waterway transport has been increased rapidly. The potential market for marine engines is more and more obvious. The measurement of the engine temperature and strain becomes very important. The fluorescence fiber sensors are broadly used to measure temperature, concentration, and pH value, etc. The fluorescence sensing systems are based on different principles, namely fluorescence intensity, fluorescence intensity ratio, and fluorescence lifetime. The fluorescence lifetime is an effective parameter for sensing purpose, because it is independent of the intensity of the pumping source and does not need expensive narrow-band filters. An experiment system has been established, in which some samples were produced to measure the fluorescence lifetime and temperature characteristics and the relationship of the strain and temperature versus the fluorescence lifetime was achieved at the same time. The experiment result was fitted and analyzed. The test results show that the fluorescence lifetime decreases with the increasing of temperature. The change of fluorescence lifetime with the strain is inconspicuous comparing to that with the temperature.展开更多
This paper outlines briefly the role of nuclear medicine in life sciences and health care. Molecular imaging by using isotopic tracers can noninvasively visualize the chemistry or hidden process in the cells and tissu...This paper outlines briefly the role of nuclear medicine in life sciences and health care. Molecular imaging by using isotopic tracers can noninvasively visualize the chemistry or hidden process in the cells and tissues inside the body, obtaining "functional" images to provide early information of any disease and revealing the secrets of life. The vitality of nuclear medicine is its ability to translate bench into new clinical application that can benefits the patients. Although nuclear medicine community in China has made significant achievement with a great effort since 1950s, there are many obstacles to future development. Recommended measures are proposed here in an attempt to solve our existing problems.展开更多
As the international community place high value on the ocean,protecting the marine environment and promoting the sustainable development of the ocean have become the consensus of all countries around the world.Integra...As the international community place high value on the ocean,protecting the marine environment and promoting the sustainable development of the ocean have become the consensus of all countries around the world.Integrated ocean management,as an important part of the ocean governance mechanism within the framework of the United Nations,have approached to the scene view of human gradually.Taking the United Nations Convention on the Law of the Sea as the framework,the current international integrated ocean management is summarized and the future development trend of ocean management is analyzed,providing reference for China to build a maritime power and a maritime community with shared future.展开更多
The authors have proposed a new of magnetic isotope theory of life on Earth. According to this theory the initial impetus for the beginning of the synthesis of organic compounds is the impact of electromagnetic radiat...The authors have proposed a new of magnetic isotope theory of life on Earth. According to this theory the initial impetus for the beginning of the synthesis of organic compounds is the impact of electromagnetic radiation from the sun and energy radioactive isotopes.展开更多
This work aimed to demonstrate possibilities for both active and passive control of the vortex-induced vibration and fatigue life of steel catenary risers via an analysis of the self-organization and evolution of the ...This work aimed to demonstrate possibilities for both active and passive control of the vortex-induced vibration and fatigue life of steel catenary risers via an analysis of the self-organization and evolution of the structural vibration based on synergetic theory. An analysis of the complex interrelated and synergistic relationship between the order parameter and the fast variable was performed, and the master equation of the nodal displacements was established as the order parameter for the evolution of the riser's structural vibration. Passive control methods include modifying the structure's elastic modulus, the internal fluid velocity, the top tension and the structural damping ratio, while an active control involves adjusting the external flow rate. Optimized parameters were obtained by analyzing the non-steady state solution of the master equation. The results show that the fatigue life greatly increases as the riser's elastic modulus decreases. In contrast, the fatigue life decreases with an increase of the internal fluid velocity. With an increase of the top tension, the vibration amplitudes and the number of modes may decrease, resulting in fewer bending stress cycles and a longer fatigue life. Furthermore, the structural damping ratio should be as large as possible. Finally, an active and passive control of the riser structure's response to vortex-induced vibration and its fatigue life can be achieved by carefully modifying the parameters mentioned above. The results may provide a theoretical framework for engineering practice concerning the design and control of steel catenary riser structures which are affected by vortex-induced vibration.展开更多
In the traditional understanding,the social basis of the emergence and existence of international law can be summed up as an international society in which interstate conflict and cooperation and interests and contrad...In the traditional understanding,the social basis of the emergence and existence of international law can be summed up as an international society in which interstate conflict and cooperation and interests and contradictions coexist.In recent years,the term“international community”has been widely used in national practice and academic discourse.Many scholars believe that the development of interstate relations indicates that the international community is being transformed into a global international community.The concept of“a community of shared future for mankind”reflects China’s new understanding of the social foundations of international law.It introduces Chinese traditional culture into global governance,develops Marxist theory on the community,is concerned both for mankind as a whole and for individuals,highlights the ultimate issues of the international community,and emphasizes the international community’s union of diversity and interdependence.The idea of“a community of shared future for mankind”is of great significance for the theory and practice of international law;it reflects the emergence of methodological holism,the response of international law to the questioning of its legitimacy,and the trend toward hierarchical systematization in international law.The concept of“a community of shared future for mankind”is of great value to China’s participation in the reform of the global governance system.It will help promote appreciation of the relations between China and the world,enhance China’s international discourse power and discourse force,and promote the rule of law in international relations that China advocates.展开更多
文摘According to different mechanisms of dormancy,seeds of Gagea nigra L.Z.Shue were treated with different methods so as to investigate the effects of different treatments on seed germination of G.nigra.The results showed that at 4 ℃,the seeds of G.nigra began to germinate on day 32 with germination period of 80 d and germination rate of 72%;room temperature（25 ℃） and acid and alkali treatments were all unsuitable for the germination of G.nigra seeds;no significant differences were found in germination rate of G.nigra seeds among warm water（50℃）,ultrasound and 200 mg/L GA_3treatments（P 0.05）;seed coat-removing treatment effectively promoted the germination of G.nigra seeds（P =0.002 0.01） with germination rate of 88%;seed coat piercing ＋ 200 mg/L GA_3 and 500 mg/L GA_3＋15% H_2O_2 treatments effectively promoted the germination of G.nigra seeds with germination rates of 84% and 82%,respectively（P0.05）;the germination vigor of G.nigra seeds in the seed coat piercing ＋ 200 mg/L GA_3 treatment was highest,and it was significantly higher than those in the other treatments.
基金The authors would like to thank the reviewers for their de-tailed reviews and constructive comments, which have helped improve the quality of this paper. This work was supported by the National Natural Science Foundation of China under Grant No. 61101107 the Scientific Research and Innovation Plan for the Youth of BUPT under Grant No. 2011RC0305 the National International Science and Technology Cooperation Project under Grant No. 2010DFA11320.
文摘In order to save energy and make more efficient use of wireless channel, this article puts forward an energy saving cooperative relaying scheme which actuates the cooperative transmis- sion only when the feedback from the destination indicates failure of the direct transmission. The proposed scheme selects the optimal relay and its corresponding transmission power in each time slot based on channel condition and residual ener- gy with the objective of minimizing energy con- sumption and extending network lifetime. In the study, the f＇mite-state Markov channel model is used to characterize the correlation structure of channel fading in wireless networks, and the pro- cedure of relay selection and transmission power decision is formulated as a M arkov decision process. Numerical and simulation results show that the proposed scheme consumes less energy and prolongs the network lifetime.
文摘The terms ＂soul,＂ ＂spirit,＂ ＂breath,＂ and ＂life＂ occur several times each in the Book of Job. A proper understanding of these terms in Scripture, especially ＂soul＂ and ＂spirit＂ is integral to understanding the state of the dead, among others. These terms are used in diverse contexts with interchangeable nuances in the Book of Job. A living （＂life＂） person （＂soul＂） consists of the body/flesh plus the life principle （＂spirit＂） of which ＂breath＂ is a concrete expression. In poetic contexts, the terminologies denote the physical （＂soul＂/＂life＂）, appetitive （＂soul＂/＂life＂）, psychical （＂spirit＂/＂breath＂）, and emotional （＂soul＂/＂spirit＂） characteristics of the human being. While ＂soul＂ and ＂life＂ tend towards physieality and therefore can be used synonymously for the whole person, ＂spirit＂ and ＂breath＂ tend towards non-physicality and express such phenomena as intellection and wind. A study of these terminologies in other poetic texts in the Hebrew Bible may evince similar semantic configurations as found in the Book of Job.
基金National Natural Science Foundations of China (No.60873179, No.60803078)
文摘Chinese organization name recognition is hard and important in natural language processing. To reduce tagged corpus and use untagged corpus,we presented combing Co-training with support vector machines (SVM) and conditional random fields (CRF) to improve recognition results. Based on principles of uncorrelated and compatible,we constructed different classifiers from different views within SVM or CRF alone and combination of these two models. And we modified a heuristic untagged samples selection algorithm to reduce time complexity. Experimental results show that under the same tagged data,Co-training has 10% F-measure higher than using SVM or CRF alone; under the same F-measure,Co-training saves at most 70% of tagged data to achieve the same performance.
基金Supported by the Heilongjiang Provincial Natural Science Research Foundation (A0308).
文摘With the rapid development of China's foreign trade, the coastal and inland waterway transport has been increased rapidly. The potential market for marine engines is more and more obvious. The measurement of the engine temperature and strain becomes very important. The fluorescence fiber sensors are broadly used to measure temperature, concentration, and pH value, etc. The fluorescence sensing systems are based on different principles, namely fluorescence intensity, fluorescence intensity ratio, and fluorescence lifetime. The fluorescence lifetime is an effective parameter for sensing purpose, because it is independent of the intensity of the pumping source and does not need expensive narrow-band filters. An experiment system has been established, in which some samples were produced to measure the fluorescence lifetime and temperature characteristics and the relationship of the strain and temperature versus the fluorescence lifetime was achieved at the same time. The experiment result was fitted and analyzed. The test results show that the fluorescence lifetime decreases with the increasing of temperature. The change of fluorescence lifetime with the strain is inconspicuous comparing to that with the temperature.
文摘This paper outlines briefly the role of nuclear medicine in life sciences and health care. Molecular imaging by using isotopic tracers can noninvasively visualize the chemistry or hidden process in the cells and tissues inside the body, obtaining "functional" images to provide early information of any disease and revealing the secrets of life. The vitality of nuclear medicine is its ability to translate bench into new clinical application that can benefits the patients. Although nuclear medicine community in China has made significant achievement with a great effort since 1950s, there are many obstacles to future development. Recommended measures are proposed here in an attempt to solve our existing problems.
文摘As the international community place high value on the ocean,protecting the marine environment and promoting the sustainable development of the ocean have become the consensus of all countries around the world.Integrated ocean management,as an important part of the ocean governance mechanism within the framework of the United Nations,have approached to the scene view of human gradually.Taking the United Nations Convention on the Law of the Sea as the framework,the current international integrated ocean management is summarized and the future development trend of ocean management is analyzed,providing reference for China to build a maritime power and a maritime community with shared future.
文摘The authors have proposed a new of magnetic isotope theory of life on Earth. According to this theory the initial impetus for the beginning of the synthesis of organic compounds is the impact of electromagnetic radiation from the sun and energy radioactive isotopes.
基金Financial support from the China Postdoctoral Science Foundation Fund (Grant No.2013M531563)the Qingdao Agricultural University High-Level Talents Research Fund (Grant No. 631424)is gratefully acknowledged
文摘This work aimed to demonstrate possibilities for both active and passive control of the vortex-induced vibration and fatigue life of steel catenary risers via an analysis of the self-organization and evolution of the structural vibration based on synergetic theory. An analysis of the complex interrelated and synergistic relationship between the order parameter and the fast variable was performed, and the master equation of the nodal displacements was established as the order parameter for the evolution of the riser's structural vibration. Passive control methods include modifying the structure's elastic modulus, the internal fluid velocity, the top tension and the structural damping ratio, while an active control involves adjusting the external flow rate. Optimized parameters were obtained by analyzing the non-steady state solution of the master equation. The results show that the fatigue life greatly increases as the riser's elastic modulus decreases. In contrast, the fatigue life decreases with an increase of the internal fluid velocity. With an increase of the top tension, the vibration amplitudes and the number of modes may decrease, resulting in fewer bending stress cycles and a longer fatigue life. Furthermore, the structural damping ratio should be as large as possible. Finally, an active and passive control of the riser structure's response to vortex-induced vibration and its fatigue life can be achieved by carefully modifying the parameters mentioned above. The results may provide a theoretical framework for engineering practice concerning the design and control of steel catenary riser structures which are affected by vortex-induced vibration.
基金a phased result of the important research project "‘Constructing A Community of Shared Future for Mankind’ and Innovating the Theory of International Law in China"(16JD820011)of the Humanities and Social Sciences Research Base of the Ministry of Education in 2016
文摘In the traditional understanding,the social basis of the emergence and existence of international law can be summed up as an international society in which interstate conflict and cooperation and interests and contradictions coexist.In recent years,the term“international community”has been widely used in national practice and academic discourse.Many scholars believe that the development of interstate relations indicates that the international community is being transformed into a global international community.The concept of“a community of shared future for mankind”reflects China’s new understanding of the social foundations of international law.It introduces Chinese traditional culture into global governance,develops Marxist theory on the community,is concerned both for mankind as a whole and for individuals,highlights the ultimate issues of the international community,and emphasizes the international community’s union of diversity and interdependence.The idea of“a community of shared future for mankind”is of great significance for the theory and practice of international law;it reflects the emergence of methodological holism,the response of international law to the questioning of its legitimacy,and the trend toward hierarchical systematization in international law.The concept of“a community of shared future for mankind”is of great value to China’s participation in the reform of the global governance system.It will help promote appreciation of the relations between China and the world,enhance China’s international discourse power and discourse force,and promote the rule of law in international relations that China advocates.
