The basic functions and the relative concepts of ZigBee network are analyzed in this paper. The implementation method of ZigBee network layer is proposed, it includes how to build a new network, add a node to the netw...The basic functions and the relative concepts of ZigBee network are analyzed in this paper. The implementation method of ZigBee network layer is proposed, it includes how to build a new network, add a node to the network, send data and receive data. The distributing address assigning mechanism, the tree hierarchical route algorism and AODVjr algorism are implemented. Finally, the ZigBee network layer protocol is tested.展开更多
This study takes Lin'an City which early carries out the experiment of ecological operation of hickory as the study site.On the basis of the input-output data on hickory and farmers' land,we analyze the input-...This study takes Lin'an City which early carries out the experiment of ecological operation of hickory as the study site.On the basis of the input-output data on hickory and farmers' land,we analyze the input-output status of hickory land which practises ecological operation,the operators' willingness to accept ecological operation and the influencing factors.The results show that in the short term,ecological operation of hickory will have a certain negative impact on the economic benefits;within the experimental area,the degree of operators' willingness to accept ecological operation of hickory is high,and the operators have a clear understanding of long-term comprehensive benefits which may be brought by ecological operation;the ecological experiment and demonstration of hickory have achieved certain results;family income level,characteristics of householders,education and training,and so on,are the main factors that affect the operators' willingness to choose ecological operation.Finally,for how to further improve the promotion efficiency of ecological operation of hickory,we put forth some constructive recommendations.展开更多
My husband took two exams on the same day and camehome,exhausted(精疲力竭)from hours of answering multi-ple-choice questions.He lay on the sofa.My mother came totell him that dinner was ready and asked if he would pre...My husband took two exams on the same day and camehome,exhausted(精疲力竭)from hours of answering multi-ple-choice questions.He lay on the sofa.My mother came totell him that dinner was ready and asked if he would prefer wa-ter,lemonade(柠檬水)or milk with his meal.He paused展开更多
This novel is the story of Edmund Carr,a man who is dying and chooses to spend his final days on an ocean going cruise so he can be close to Laura,the woman he loves from afar.The book is filled with the story of his ...This novel is the story of Edmund Carr,a man who is dying and chooses to spend his final days on an ocean going cruise so he can be close to Laura,the woman he loves from afar.The book is filled with the story of his journey,both physical and metaphysical.This book is filled with warm-hearting and love.It makes us to love yourselves,your family,your friends and the other people.展开更多
This paper analyses of the outage probability and the achievable rate of massive multi-input-multi-output(MIMO) systems, in which the base station(BS) is equipped with digital-to-analog-converters(DACs) of mixed-level...This paper analyses of the outage probability and the achievable rate of massive multi-input-multi-output(MIMO) systems, in which the base station(BS) is equipped with digital-to-analog-converters(DACs) of mixed-level resolution. And the matched-filter(MF) precoding is used on the BS. Closedform expressions are derived by the distribution of user-interference power and other statistical properties in the signal-to-interference-plus-noise-ratio. Then, the combination of mixed-DACs resolution profile is chosen about outage probability and achievable rate with the BS energy consumption. And the resolution configurations between the outage probability and the achievable rate and the BS energy consumption are given. Meanwhile, Effects of related parameters and channel errors are analysed about outage probability and achievable rate. The numerical results show that the correctness of the formula derivations. As the number of users increases the system's achievable rate increases and the outage probability decreases. The selected resolution configuration system has better comprehensive performance.展开更多
When I decided to give the English writing course, mycolleagues offered me quite a few suggestions: some suggestedthat I should instruct students to Practise practical writings;some advised me to begin with compositio...When I decided to give the English writing course, mycolleagues offered me quite a few suggestions: some suggestedthat I should instruct students to Practise practical writings;some advised me to begin with composition appreciation; somestood for lectures on rhetoric; and some wanted me to pick anumber of topics every time and let the students choose theone in which they were most interested to write on. All ofthese suggestions should be considered as the main展开更多
Different fuzzy reasoning methods were made by choosing different fuzzy operater.This article generally introduced the basic structure of fuzzy controller,and gave several different fuzzy controllers,and compared and ...Different fuzzy reasoning methods were made by choosing different fuzzy operater.This article generally introduced the basic structure of fuzzy controller,and gave several different fuzzy controllers,and compared and analyzed different fuzzy counters in theory and computer simulating control and realized majorizational choosing of several fuzzy counters.展开更多
In English, as in most other languages, we can say the same thing in a number of ways.For example, to advice. Giving Advice is a Language function. There are various ways ill which we can give advice in English, e.g. ...In English, as in most other languages, we can say the same thing in a number of ways.For example, to advice. Giving Advice is a Language function. There are various ways ill which we can give advice in English, e.g. ’If I were you, I’d…,Personally,I think your best course would be to……’, etc. The way we choose to say something will depend on our attitude to展开更多
The basic functions and the relative concepts of ZigBee network are analyzed in this paper. The implementation method of ZigBee network layer is proposed, and then a algorism about how to built a Zigbee network is def...The basic functions and the relative concepts of ZigBee network are analyzed in this paper. The implementation method of ZigBee network layer is proposed, and then a algorism about how to built a Zigbee network is defined. Finally, a experiment is simulated by prove the liveness of the Zigbee network, the result shows the PC can get the monitored data from the Zigbee network.展开更多
With the rise of e-commerce in China,traditional brands feel increasing p r e s s u r e.H o w t o deal with e-commerce has become a pressing issue for them.To get their e-commerce endeavors off to a successful start,c...With the rise of e-commerce in China,traditional brands feel increasing p r e s s u r e.H o w t o deal with e-commerce has become a pressing issue for them.To get their e-commerce endeavors off to a successful start,companies must choose the right model and systems based on the products they make。展开更多
Academic writings, whether they are BA dissertations or semester papers, are important carriers of one＇s ideas and findings of their own study and research spheres. In academic papers, the most important part is the ...Academic writings, whether they are BA dissertations or semester papers, are important carriers of one＇s ideas and findings of their own study and research spheres. In academic papers, the most important part is the choice of topics which determines the macro direction of the paper. Important as it is, it is difficult for the English majors to choose the most appropriate topics with idea-invested thesis statements instead of some factual statements. Therefore, in order to make clear of the status quo and underlying obstacles of topic choosing, this paper is to study on 98 samples from China University of Political Science and Law＇s junior English majors. By observing and analyzing their writings, the paper intends to fred out some possible and accessible methods to improve English majors＇ academic writing and offer some insights for teachers to make some adjustments in accordance with the status quo.展开更多
The strategy of diversification has become an important approach to enterprise development. A success- ful diversification strategy depends mainly on the correct business choice.Before choosing a new business,we must ...The strategy of diversification has become an important approach to enterprise development. A success- ful diversification strategy depends mainly on the correct business choice.Before choosing a new business,we must identify the core competencies of the enterprise and research the attraction and critical success factors of the target business.Then we should make sure whether the core competencies match the critical success factors or not. The new business should be useful for cultivating sustainable competitive advantage.展开更多
文摘The basic functions and the relative concepts of ZigBee network are analyzed in this paper. The implementation method of ZigBee network layer is proposed, it includes how to build a new network, add a node to the network, send data and receive data. The distributing address assigning mechanism, the tree hierarchical route algorism and AODVjr algorism are implemented. Finally, the ZigBee network layer protocol is tested.
基金Supported by Zhejiang Provincial Natural Science Foundation(Y6090002)Talent Initiation Project of Zhejiang Agriculture and Forestry University (2011FR001)Scientific Research Innovation Fund Project of Zhejiang Agriculture and Forestry University(2112010015)
文摘This study takes Lin'an City which early carries out the experiment of ecological operation of hickory as the study site.On the basis of the input-output data on hickory and farmers' land,we analyze the input-output status of hickory land which practises ecological operation,the operators' willingness to accept ecological operation and the influencing factors.The results show that in the short term,ecological operation of hickory will have a certain negative impact on the economic benefits;within the experimental area,the degree of operators' willingness to accept ecological operation of hickory is high,and the operators have a clear understanding of long-term comprehensive benefits which may be brought by ecological operation;the ecological experiment and demonstration of hickory have achieved certain results;family income level,characteristics of householders,education and training,and so on,are the main factors that affect the operators' willingness to choose ecological operation.Finally,for how to further improve the promotion efficiency of ecological operation of hickory,we put forth some constructive recommendations.
文摘My husband took two exams on the same day and camehome,exhausted(精疲力竭)from hours of answering multi-ple-choice questions.He lay on the sofa.My mother came totell him that dinner was ready and asked if he would prefer wa-ter,lemonade(柠檬水)or milk with his meal.He paused
文摘This novel is the story of Edmund Carr,a man who is dying and chooses to spend his final days on an ocean going cruise so he can be close to Laura,the woman he loves from afar.The book is filled with the story of his journey,both physical and metaphysical.This book is filled with warm-hearting and love.It makes us to love yourselves,your family,your friends and the other people.
基金supported by the National Natural Science Foundation of China(No.61961018)the Jiangxi Province Foundation for Distinguished Young Scholar(No.20192BCB23013)the Jiangxi Province Natural Science Foundation of China(20192ACB21003)。
文摘This paper analyses of the outage probability and the achievable rate of massive multi-input-multi-output(MIMO) systems, in which the base station(BS) is equipped with digital-to-analog-converters(DACs) of mixed-level resolution. And the matched-filter(MF) precoding is used on the BS. Closedform expressions are derived by the distribution of user-interference power and other statistical properties in the signal-to-interference-plus-noise-ratio. Then, the combination of mixed-DACs resolution profile is chosen about outage probability and achievable rate with the BS energy consumption. And the resolution configurations between the outage probability and the achievable rate and the BS energy consumption are given. Meanwhile, Effects of related parameters and channel errors are analysed about outage probability and achievable rate. The numerical results show that the correctness of the formula derivations. As the number of users increases the system's achievable rate increases and the outage probability decreases. The selected resolution configuration system has better comprehensive performance.
文摘When I decided to give the English writing course, mycolleagues offered me quite a few suggestions: some suggestedthat I should instruct students to Practise practical writings;some advised me to begin with composition appreciation; somestood for lectures on rhetoric; and some wanted me to pick anumber of topics every time and let the students choose theone in which they were most interested to write on. All ofthese suggestions should be considered as the main
文摘Different fuzzy reasoning methods were made by choosing different fuzzy operater.This article generally introduced the basic structure of fuzzy controller,and gave several different fuzzy controllers,and compared and analyzed different fuzzy counters in theory and computer simulating control and realized majorizational choosing of several fuzzy counters.
文摘In English, as in most other languages, we can say the same thing in a number of ways.For example, to advice. Giving Advice is a Language function. There are various ways ill which we can give advice in English, e.g. ’If I were you, I’d…,Personally,I think your best course would be to……’, etc. The way we choose to say something will depend on our attitude to
文摘The basic functions and the relative concepts of ZigBee network are analyzed in this paper. The implementation method of ZigBee network layer is proposed, and then a algorism about how to built a Zigbee network is defined. Finally, a experiment is simulated by prove the liveness of the Zigbee network, the result shows the PC can get the monitored data from the Zigbee network.
文摘With the rise of e-commerce in China,traditional brands feel increasing p r e s s u r e.H o w t o deal with e-commerce has become a pressing issue for them.To get their e-commerce endeavors off to a successful start,companies must choose the right model and systems based on the products they make。
文摘Academic writings, whether they are BA dissertations or semester papers, are important carriers of one＇s ideas and findings of their own study and research spheres. In academic papers, the most important part is the choice of topics which determines the macro direction of the paper. Important as it is, it is difficult for the English majors to choose the most appropriate topics with idea-invested thesis statements instead of some factual statements. Therefore, in order to make clear of the status quo and underlying obstacles of topic choosing, this paper is to study on 98 samples from China University of Political Science and Law＇s junior English majors. By observing and analyzing their writings, the paper intends to fred out some possible and accessible methods to improve English majors＇ academic writing and offer some insights for teachers to make some adjustments in accordance with the status quo.
基金Supported by Natural Science Foundation ofChina,grantNO.79870031
文摘The strategy of diversification has become an important approach to enterprise development. A success- ful diversification strategy depends mainly on the correct business choice.Before choosing a new business,we must identify the core competencies of the enterprise and research the attraction and critical success factors of the target business.Then we should make sure whether the core competencies match the critical success factors or not. The new business should be useful for cultivating sustainable competitive advantage.
