本期话题如下: 1.Do you think it is necessary for adults tohave further education? Quite necessary. It gives them a sense of self-awareness. It makes them know their strengths and weak- nesses. It improves their skills...本期话题如下: 1.Do you think it is necessary for adults tohave further education? Quite necessary. It gives them a sense of self-awareness. It makes them know their strengths and weak- nesses. It improves their skills. It brings about better job opportunities. It helps them gain self-confidence.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
Massive machine-type communication(m MTC)is a typical application scenario of the fifth generation(5G)mobile communications.To keep the m MTC reliable and minimize the energy consumption of the m MTC devices,this pape...Massive machine-type communication(m MTC)is a typical application scenario of the fifth generation(5G)mobile communications.To keep the m MTC reliable and minimize the energy consumption of the m MTC devices,this paper proposes an enhanced power choice barring(EPCB)scheme based on the distributed layered grant-free non-orthogonal multiple access(NOMA)framework,where the cell is divided into different layers according to a predetermined power levels.The proposed EPCB scheme not only combines the grant-free strategy with the sleep mode to reduce the energy consumption,but also designs a power level choosing strategy to increase the access success probability.Simulation results show that when compared with existing schemes,the proposed EPCB scheme has better performance in the aspects of the access success probability and energy efficiency.展开更多
为了帮助同学们系统全面地了解复合宾语,现将复合宾语的类型归纳如下:一、宾语+名词I believe him an honest man。We chose him our monitor。这类句子中的谓语动词多是believe,call,choose,find,make,think等,二、宾语+形容词Keep you...为了帮助同学们系统全面地了解复合宾语,现将复合宾语的类型归纳如下:一、宾语+名词I believe him an honest man。We chose him our monitor。这类句子中的谓语动词多是believe,call,choose,find,make,think等,二、宾语+形容词Keep your hands clean。展开更多
一、教学背景
（一）教学内容分析
1.教材内容分析
本课时的授课内容是一篇题目为My attitude changed的课外阅读文章。从内容上来看,作者讲述了自己在面对困难时调整心态并成功克服困难的故事。作者由自己的经历想到海伦·凯勒...一、教学背景
（一）教学内容分析
1.教材内容分析
本课时的授课内容是一篇题目为My attitude changed的课外阅读文章。从内容上来看,作者讲述了自己在面对困难时调整心态并成功克服困难的故事。作者由自己的经历想到海伦·凯勒积极面对困难并取得成就的经历,最终阐明个人观点：Although we can not choose the difficulties,we can choose our attitude towards them。展开更多
There once lived a king who loved flowers so much that he dreamt of his kingdom becoming a large flower gardenall the time. He had tried different kinds of way to turn his dreaminto reality, but none of them worked su...There once lived a king who loved flowers so much that he dreamt of his kingdom becoming a large flower gardenall the time. He had tried different kinds of way to turn his dreaminto reality, but none of them worked successfully. So he was verysad about this. As time went by, the king became very old and weak. He knewclearly that it was high time for him to retire from his throne. Ashe had no children of his own, he decided to choose a suitable oneamong the young men in his country as his successor to throne.But how could he find such a person who was fit for so important展开更多
在英语中,“宁可……也不……”有多种表达法,现试说明并例示如下: 一、would rather+动词原形…than+动词原形或其它,该结构可变为“would…rather than…”形式而意义不变,为强调rather than后接部分,可将其置于句首。如: 1.They woul...在英语中,“宁可……也不……”有多种表达法,现试说明并例示如下: 一、would rather+动词原形…than+动词原形或其它,该结构可变为“would…rather than…”形式而意义不变,为强调rather than后接部分,可将其置于句首。如: 1.They would rather die as free man than live as slaves. 他们宁可作自由人而死,也不作奴隶而生。展开更多
1.__ you say,I won’t believe you.2.__ he is,he shall answer for the accident.3.__ you choose,you will be satisfied.4.__ busy be is,he is always ready to help others.5.__ you go,you are sure to meet friendly people.6....1.__ you say,I won’t believe you.2.__ he is,he shall answer for the accident.3.__ you choose,you will be satisfied.4.__ busy be is,he is always ready to help others.5.__ you go,you are sure to meet friendly people.6.__ he coughed,he felt pain.展开更多
You may have learned English for some years.It is nature that you want to be able to readsome English books or magazines.Just think ofhow happy you will be when you finished readinga book and a magazine in English.It ...You may have learned English for some years.It is nature that you want to be able to readsome English books or magazines.Just think ofhow happy you will be when you finished readinga book and a magazine in English.It is importantto choose a book that interest you.Then you mayask for what kind of book to choose.I think youshould choose something neither too difficult nortoo easily.While reading you should never let new wordstake too much your attention.Just do it as展开更多
文摘本期话题如下: 1.Do you think it is necessary for adults tohave further education? Quite necessary. It gives them a sense of self-awareness. It makes them know their strengths and weak- nesses. It improves their skills. It brings about better job opportunities. It helps them gain self-confidence.
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.
基金supported by the NSFC projects(6217011870,and 61971136)Zhishan Youth Scholar Program of SEU,the Fundamental Research Funds for the Central UniversitiesYoung Elite Scientist Sponsorship Program by CAST(YESS20160042)。
文摘Massive machine-type communication(m MTC)is a typical application scenario of the fifth generation(5G)mobile communications.To keep the m MTC reliable and minimize the energy consumption of the m MTC devices,this paper proposes an enhanced power choice barring(EPCB)scheme based on the distributed layered grant-free non-orthogonal multiple access(NOMA)framework,where the cell is divided into different layers according to a predetermined power levels.The proposed EPCB scheme not only combines the grant-free strategy with the sleep mode to reduce the energy consumption,but also designs a power level choosing strategy to increase the access success probability.Simulation results show that when compared with existing schemes,the proposed EPCB scheme has better performance in the aspects of the access success probability and energy efficiency.
文摘为了帮助同学们系统全面地了解复合宾语,现将复合宾语的类型归纳如下:一、宾语+名词I believe him an honest man。We chose him our monitor。这类句子中的谓语动词多是believe,call,choose,find,make,think等,二、宾语+形容词Keep your hands clean。
文摘一、教学背景
（一）教学内容分析
1.教材内容分析
本课时的授课内容是一篇题目为My attitude changed的课外阅读文章。从内容上来看,作者讲述了自己在面对困难时调整心态并成功克服困难的故事。作者由自己的经历想到海伦·凯勒积极面对困难并取得成就的经历,最终阐明个人观点：Although we can not choose the difficulties,we can choose our attitude towards them。
文摘There once lived a king who loved flowers so much that he dreamt of his kingdom becoming a large flower gardenall the time. He had tried different kinds of way to turn his dreaminto reality, but none of them worked successfully. So he was verysad about this. As time went by, the king became very old and weak. He knewclearly that it was high time for him to retire from his throne. Ashe had no children of his own, he decided to choose a suitable oneamong the young men in his country as his successor to throne.But how could he find such a person who was fit for so important
文摘在英语中,“宁可……也不……”有多种表达法,现试说明并例示如下: 一、would rather+动词原形…than+动词原形或其它,该结构可变为“would…rather than…”形式而意义不变,为强调rather than后接部分,可将其置于句首。如: 1.They would rather die as free man than live as slaves. 他们宁可作自由人而死,也不作奴隶而生。
文摘1.__ you say,I won’t believe you.2.__ he is,he shall answer for the accident.3.__ you choose,you will be satisfied.4.__ busy be is,he is always ready to help others.5.__ you go,you are sure to meet friendly people.6.__ he coughed,he felt pain.
文摘You may have learned English for some years.It is nature that you want to be able to readsome English books or magazines.Just think ofhow happy you will be when you finished readinga book and a magazine in English.It is importantto choose a book that interest you.Then you mayask for what kind of book to choose.I think youshould choose something neither too difficult nortoo easily.While reading you should never let new wordstake too much your attention.Just do it as
