In term of the features of 3G system, a novel AMR link adaptation strategy for 3G system is proposed. The impacts of AMR codec modes and power control on traffic quality of service are taken into account in the strate...In term of the features of 3G system, a novel AMR link adaptation strategy for 3G system is proposed. The impacts of AMR codec modes and power control on traffic quality of service are taken into account in the strategy at the same time. By synthetically comparing the signal-to-interference ratio value with the switching threshold and comparing the transmission power with its threshold, radio resource management can always keep each link on its proper codec mode with the corresponding optimal power level to achieve both robust speech quality and link capacity enhancement. Based on the WCDMA FDD uplink link-level simulation platform, AMR link adaptation platform is constructed. Simulation results show that the algorithm can track the fast change of channel conditions and select the most robust codec mode, thus the synthetic speech quality of AMR is better than that of signal mode during a wide range of channel conditions. The result will provide a reference strategy for AMR link adaptation of 3G system.展开更多
The critical issue of China’s modernization is whether it can free itself from the traditional modernization plan based on the relatively abundant natural capital, and innovatively create a developmental model of a l...The critical issue of China’s modernization is whether it can free itself from the traditional modernization plan based on the relatively abundant natural capital, and innovatively create a developmental model of a large country under the scarcity of natural capital. This is why China is so keen on circular economy and economical use of resources. Focused on this issue, this paper summarizes the theoretical elements of the development under the scarcity of natural capital, points out that Plan C is the strategic choice for China’s future development, emphasizes that China needs to enhance the new industrialization, new urbanization and new modernization based on the restriction of natural capital, and discusses the technological and mechanistic support required to realize the development under the scarcity of natural capital.展开更多
In this study,to prepare a series of activated carbon-supported metals for the catalytic reduction of NO_x to N_2 in excess O_2,activated carbons derived from lignocellulosic and herbaceous biomasses were selected as ...In this study,to prepare a series of activated carbon-supported metals for the catalytic reduction of NO_x to N_2 in excess O_2,activated carbons derived from lignocellulosic and herbaceous biomasses were selected as the reducing agents,and alkali and transition metals were used as the catalytic active phases.The effects of the type of biomass,carbonization temperature and catalyst composition on NO_x reduction efficiency were analyzed in a fixed-bed flow reactor.The results showed that two temperature regimes are present for the NO_x-carbon reaction:at temperatures below 250°C,the NO_x adsorption process on the carbon surface was predominant,whereas true NO_x reduction by carbon occurred at temperatures above 250°C,producing N_2,CO_2 and CO.The influence of the carbonization temperature on carbon reactivity depended on the effect of the carbonization temperature on the carbon surface area and the reduction of the metal species on carbon.All studied metals catalyzed both NO_xand O_2reduction by carbon,and potassium could strongly enhance the C-NO_x reaction without substantial carbon consumption by O_2.Moreover,the potassium supported by sawdust-derived activated carbon exhibited higher selectivity and capacity towards NO_x reduction than did its previously reported coal-derived counterparts.These properties were ascribed to the high dispersion of the active potassium species on the carbon surface,as observed through the comparison of X-ray photoelectron spectroscopy and powder X-ray diffraction results for the carbons made from biomass and coal-based precursors.展开更多
The resource constrained project scheduling problem (RCPSP) and a decision-making model based on multi-agent systems (MAS) and general equilibrium marketing are proposed. An algorithm leading to the resource allocatio...The resource constrained project scheduling problem (RCPSP) and a decision-making model based on multi-agent systems (MAS) and general equilibrium marketing are proposed. An algorithm leading to the resource allocation decision involved in RCPSP has also been developed. And this algorithm can be used in the multi-project scheduling field as well.Finally, an illustration is given.展开更多
Jatropha curcas （L） has gained popularity as a biodiesel plant to serve as an alternative fuel source and generate income to small landholders. From the Bioenergy policy of Ghana, the government is collaborating wit...Jatropha curcas （L） has gained popularity as a biodiesel plant to serve as an alternative fuel source and generate income to small landholders. From the Bioenergy policy of Ghana, the government is collaborating with the private sector to develop about one million hectares of Jatropha plantation throughout the country. The objective of this study was to assess the importance which farmers give to ,Jcurcas compared with other indigenous tree species and identify the indigenous uses and niches of J. curcas in Ghana. Three farming communities were selected from each of the ten regions. A total of six hundred farmers, consisting of twenty farmers from each community were selected at random and interviewed with a semi-structured questionnaire. Results revealed that J curcas was identified as one of the most important tree species in nine out of the ten regions. Majority （56%） of the respondents indicated that it is mainly used for medicinal purpose and mostly found around homesteads. However. the study observed that, research attention is needed on integration into agricultural lands, germplasm collection and genetic improvement. These findings will help boost production ofJ. curcas in Ghana for the nation to realize her dream of alternative fuel from the plant.展开更多
Online teaching is an effective means and the inevitable trend of the development of modern education, its shared educational resources, to expand the scale of education to improve educational efficiency; build a life...Online teaching is an effective means and the inevitable trend of the development of modern education, its shared educational resources, to expand the scale of education to improve educational efficiency; build a lifelong education system plays an important role. In this paper, by analyzing the common feature of database system and network courses, it proposes a network-based database technology curriculum design and fabrication methods and principles, to make the curriculum from web centric processing teaching content production to around a shared database of teaching resource center changes.展开更多
The arrival of the era of the Internet has brought about the rapid dissemination and spread of a big amount of the information and data. At present, we are surrounded by all kinds of the information, but the rich and ...The arrival of the era of the Internet has brought about the rapid dissemination and spread of a big amount of the information and data. At present, we are surrounded by all kinds of the information, but the rich and diversified information resources also brought about the chaos, so that the query of the messages is no way to start. In fact, the information resources can provide us with more convenience, but we have to spend a lot of energy to organize and filter the information, and the costs and the time of the investment are immeasurable. Usually, the information we want to query is often easy to understand, and the information design uses the more intuitive and vivid computing means to achieve the visualization of the big data, in order to reflect the beauty of the big data.展开更多
The key of the effective operation for the fourth party logistics is to integrate logistics resources with supply chain management concept and technology. According to the essence of the fourth party logistics resourc...The key of the effective operation for the fourth party logistics is to integrate logistics resources with supply chain management concept and technology. According to the essence of the fourth party logistics resources integration, understand the characteristics of complexi .ty, the virtual and dynamic and so on, the paper analyzed the three kinds of Agent attribute for fourth party logistics resources integration system using the Agent technology and the principle, and then puts forward the fourth party logistics resources integration model of based on multi Agent.展开更多
Performance appraisal is one of the commonly used modern human resource management tools. Many companies which developed to a certain stage began to introduce performance management. But a lot of friends in human reso...Performance appraisal is one of the commonly used modern human resource management tools. Many companies which developed to a certain stage began to introduce performance management. But a lot of friends in human resources circles always hold a controversy on the effectiveness of performance management. In fact, there are problems on the methods and assessment scales. I personally think that a lot of companies use performance appraisal problem mainly occurs due to the presence misunderstanding the purpose of business resulting from the introduction of performance appraisal. For example： taking the wrong assessment methods, there is no breakdown of the work in advance, nor performed posts and responsibilities ; performance appraisal way to take a negative incentive, the employees complained of performance ; lack of strategic height of human resource management, performance appraisal that can not be linked with the actual situation. The following analysis of several performance evaluation methods and its influence is from the perspective of human resources. Each has its advantages and disadvantages, and also has different emphases. I want to share it with everyone and hope everyone can learn something from it.展开更多
In Chinese traditional culture, ceramic culture is a very special cultural system, With the advent of the era of network and the particularity of ceramic culture, Make the network native digital resources development ...In Chinese traditional culture, ceramic culture is a very special cultural system, With the advent of the era of network and the particularity of ceramic culture, Make the network native digital resources development and utilization is especially important. The idea of Web3.0 make important ceramic culture network native digital resources ＂reasonable configuration＂, t o be more embody the value of academic research. In this paper, we＇ll discuss the conformity utilization of ceramic culture native digital resources based on the concept of WEB3.0.展开更多
文摘In term of the features of 3G system, a novel AMR link adaptation strategy for 3G system is proposed. The impacts of AMR codec modes and power control on traffic quality of service are taken into account in the strategy at the same time. By synthetically comparing the signal-to-interference ratio value with the switching threshold and comparing the transmission power with its threshold, radio resource management can always keep each link on its proper codec mode with the corresponding optimal power level to achieve both robust speech quality and link capacity enhancement. Based on the WCDMA FDD uplink link-level simulation platform, AMR link adaptation platform is constructed. Simulation results show that the algorithm can track the fast change of channel conditions and select the most robust codec mode, thus the synthetic speech quality of AMR is better than that of signal mode during a wide range of channel conditions. The result will provide a reference strategy for AMR link adaptation of 3G system.
文摘The critical issue of China’s modernization is whether it can free itself from the traditional modernization plan based on the relatively abundant natural capital, and innovatively create a developmental model of a large country under the scarcity of natural capital. This is why China is so keen on circular economy and economical use of resources. Focused on this issue, this paper summarizes the theoretical elements of the development under the scarcity of natural capital, points out that Plan C is the strategic choice for China’s future development, emphasizes that China needs to enhance the new industrialization, new urbanization and new modernization based on the restriction of natural capital, and discusses the technological and mechanistic support required to realize the development under the scarcity of natural capital.
基金Supported by the National Natural Science Foundation of China(21507119)the Key Technology Research and Development Program of Qinghai Province(2012-J-144)the National High Technology Research and Development Program of China(2012AA06A11303)
文摘In this study,to prepare a series of activated carbon-supported metals for the catalytic reduction of NO_x to N_2 in excess O_2,activated carbons derived from lignocellulosic and herbaceous biomasses were selected as the reducing agents,and alkali and transition metals were used as the catalytic active phases.The effects of the type of biomass,carbonization temperature and catalyst composition on NO_x reduction efficiency were analyzed in a fixed-bed flow reactor.The results showed that two temperature regimes are present for the NO_x-carbon reaction:at temperatures below 250°C,the NO_x adsorption process on the carbon surface was predominant,whereas true NO_x reduction by carbon occurred at temperatures above 250°C,producing N_2,CO_2 and CO.The influence of the carbonization temperature on carbon reactivity depended on the effect of the carbonization temperature on the carbon surface area and the reduction of the metal species on carbon.All studied metals catalyzed both NO_xand O_2reduction by carbon,and potassium could strongly enhance the C-NO_x reaction without substantial carbon consumption by O_2.Moreover,the potassium supported by sawdust-derived activated carbon exhibited higher selectivity and capacity towards NO_x reduction than did its previously reported coal-derived counterparts.These properties were ascribed to the high dispersion of the active potassium species on the carbon surface,as observed through the comparison of X-ray photoelectron spectroscopy and powder X-ray diffraction results for the carbons made from biomass and coal-based precursors.
文摘The resource constrained project scheduling problem (RCPSP) and a decision-making model based on multi-agent systems (MAS) and general equilibrium marketing are proposed. An algorithm leading to the resource allocation decision involved in RCPSP has also been developed. And this algorithm can be used in the multi-project scheduling field as well.Finally, an illustration is given.
文摘Jatropha curcas （L） has gained popularity as a biodiesel plant to serve as an alternative fuel source and generate income to small landholders. From the Bioenergy policy of Ghana, the government is collaborating with the private sector to develop about one million hectares of Jatropha plantation throughout the country. The objective of this study was to assess the importance which farmers give to ,Jcurcas compared with other indigenous tree species and identify the indigenous uses and niches of J. curcas in Ghana. Three farming communities were selected from each of the ten regions. A total of six hundred farmers, consisting of twenty farmers from each community were selected at random and interviewed with a semi-structured questionnaire. Results revealed that J curcas was identified as one of the most important tree species in nine out of the ten regions. Majority （56%） of the respondents indicated that it is mainly used for medicinal purpose and mostly found around homesteads. However. the study observed that, research attention is needed on integration into agricultural lands, germplasm collection and genetic improvement. These findings will help boost production ofJ. curcas in Ghana for the nation to realize her dream of alternative fuel from the plant.
文摘Online teaching is an effective means and the inevitable trend of the development of modern education, its shared educational resources, to expand the scale of education to improve educational efficiency; build a lifelong education system plays an important role. In this paper, by analyzing the common feature of database system and network courses, it proposes a network-based database technology curriculum design and fabrication methods and principles, to make the curriculum from web centric processing teaching content production to around a shared database of teaching resource center changes.
文摘The arrival of the era of the Internet has brought about the rapid dissemination and spread of a big amount of the information and data. At present, we are surrounded by all kinds of the information, but the rich and diversified information resources also brought about the chaos, so that the query of the messages is no way to start. In fact, the information resources can provide us with more convenience, but we have to spend a lot of energy to organize and filter the information, and the costs and the time of the investment are immeasurable. Usually, the information we want to query is often easy to understand, and the information design uses the more intuitive and vivid computing means to achieve the visualization of the big data, in order to reflect the beauty of the big data.
文摘The key of the effective operation for the fourth party logistics is to integrate logistics resources with supply chain management concept and technology. According to the essence of the fourth party logistics resources integration, understand the characteristics of complexi .ty, the virtual and dynamic and so on, the paper analyzed the three kinds of Agent attribute for fourth party logistics resources integration system using the Agent technology and the principle, and then puts forward the fourth party logistics resources integration model of based on multi Agent.
文摘Performance appraisal is one of the commonly used modern human resource management tools. Many companies which developed to a certain stage began to introduce performance management. But a lot of friends in human resources circles always hold a controversy on the effectiveness of performance management. In fact, there are problems on the methods and assessment scales. I personally think that a lot of companies use performance appraisal problem mainly occurs due to the presence misunderstanding the purpose of business resulting from the introduction of performance appraisal. For example： taking the wrong assessment methods, there is no breakdown of the work in advance, nor performed posts and responsibilities ; performance appraisal way to take a negative incentive, the employees complained of performance ; lack of strategic height of human resource management, performance appraisal that can not be linked with the actual situation. The following analysis of several performance evaluation methods and its influence is from the perspective of human resources. Each has its advantages and disadvantages, and also has different emphases. I want to share it with everyone and hope everyone can learn something from it.
文摘In Chinese traditional culture, ceramic culture is a very special cultural system, With the advent of the era of network and the particularity of ceramic culture, Make the network native digital resources development and utilization is especially important. The idea of Web3.0 make important ceramic culture network native digital resources ＂reasonable configuration＂, t o be more embody the value of academic research. In this paper, we＇ll discuss the conformity utilization of ceramic culture native digital resources based on the concept of WEB3.0.
