For n≥3,we construct a class{Wn,π1,π2}of n^(2)×n^(2) hermitian matrices by the permutation pairs and show that,for a pair{π1,π2}of permutations on(1,2,…,n),Wn,π1,π2 is an entanglement witness of the n⊗n s...For n≥3,we construct a class{Wn,π1,π2}of n^(2)×n^(2) hermitian matrices by the permutation pairs and show that,for a pair{π1,π2}of permutations on(1,2,…,n),Wn,π1,π2 is an entanglement witness of the n⊗n system if{π1,π2}has the property(C).Recall that a pair{π1,π2}of permutations of(1,2,…,n)has the property(C)if,for each i,one can obtain a permutation of(1,…,i−1,i+1,…,n)from(π1(1),…,π1(i−1),π1(i+1),…,π1(n))and(π2(1),…,π2(i−1),π2(i+1),…,π2(n)).We further prove that Wn,π1,π2 is not comparable with Wn,π,which is the entanglement witness constructed from a single permutationπ;Wn,π1,π2 is decomposable ifπ1π2=id orπ21=π22=id.For the low dimensional cases n∈{3,4},we give a sufficient and necessary condition onπ1,π2 for Wn,π1,π2 to be an entanglement witness.We also show that,for n∈{3,4},Wn,π1,π2 is decomposable if and only ifπ1π2=id orπ21=π22=id;W3,π1,π2 is optimal if and only if(π1,π2)=(π,π2),whereπ=(2,3,1).As applications,some entanglement criteria for states and some decomposability criteria for positive maps are established.展开更多
China, in 2005, had gone through a year of trade disputes with some major trade partners such as the United States of America, the European,etc..But what was the impact of the disputes on China's trade relatio... China, in 2005, had gone through a year of trade disputes with some major trade partners such as the United States of America, the European,etc..But what was the impact of the disputes on China's trade relations with them? The documents of the China Ministry of Commerce show that all the relations had witnessed a optimistic development, with active fruits ahieved as well.……展开更多
On the occasion of the 20th anniversary of the founding of Gofront Dyeing&Finishing Machinery Manufacturer Ltd.,the Documentary"Originality Made"made by CCTV-9 Discovery channel,during which Gofront Dyei...On the occasion of the 20th anniversary of the founding of Gofront Dyeing&Finishing Machinery Manufacturer Ltd.,the Documentary"Originality Made"made by CCTV-9 Discovery channel,during which Gofront Dyeing&Finishing was selected as the first dyeing and finishing equipment manufacturing enterprise in China,presented its premiere in Guangzhou,on November 24th,2017.展开更多
A quantum entangled state is easily disturbed by noise and degenerates into a separable state.Compared to the entanglement with bipartite quantum systems,less progress has been made for the entanglement with multipart...A quantum entangled state is easily disturbed by noise and degenerates into a separable state.Compared to the entanglement with bipartite quantum systems,less progress has been made for the entanglement with multipartite quantum systems.For tripartite separability of a four-qubit system,we propose two entanglement witnesses,each of which corresponds to a necessary condition of tripartite separability.For the four-qubit GHZ state mixed with a W state and white noise,we prove that the necessary conditions of tripartite separability are also sufficient at W states side.展开更多
Higher dimensional entangled states demonstrate significant advantages in quantum information processing tasks. The Schmidt number is a quantity of the entanglement dimension of a bipartite state. Here we build famili...Higher dimensional entangled states demonstrate significant advantages in quantum information processing tasks. The Schmidt number is a quantity of the entanglement dimension of a bipartite state. Here we build families of k-positive maps from the symmetric information complete positive operator-valued measurements and mutually unbiased bases, and we also present the Schmidt number witnesses, correspondingly. At last, based on the witnesses obtained from mutually unbiased bases, we show the distance between a bipartite state and the set of states with a Schmidt number less than k.展开更多
According to Roland Berger Strat-egy Consultants 2014 outlook on China’s healthcare services industry released on January 10th,2014,Ro-land Berger believes that Chinese healthcare market and industry will see structu...According to Roland Berger Strat-egy Consultants 2014 outlook on China’s healthcare services industry released on January 10th,2014,Ro-land Berger believes that Chinese healthcare market and industry will see structural shifts and dynamic changes over the next decade,with 2014 marking an important start to this process.This year is likely to witness展开更多
The main significance of witnesses＇ appearing in court to testify in criminal trials is that this practice guarantees the defendant＇s right to confrontation. The issue can thus be framed in another way, as the issue...The main significance of witnesses＇ appearing in court to testify in criminal trials is that this practice guarantees the defendant＇s right to confrontation. The issue can thus be framed in another way, as the issue of the appearance in court of the necessary witnesses. Here, the defendant＇s right to confront is the key point. Since neither China＇s criminal procedural law nor corresponding judicial interpretations have granted the defendant the right to confront, the rate of appearance of the necessary witnesses amounts in practice to only about twenty- five percent. Criminal trials conducted in the absence of the right to confrontation usually conform to the doctrine of positive substantive truth and manifest a lack of care in conviction and sentencing as well as reliance on a single source of legitimacy in reaching judgments. To correct this state of affairs, it is necessary to institute the right to confront and corresponding safeguards.展开更多
The present study,based on Labov's narrative theory,focuses on how witnesses,involvement affects their narrative reconstruction of the criminal case.Witnesses5 involvement is first subcategorized,and there are two...The present study,based on Labov's narrative theory,focuses on how witnesses,involvement affects their narrative reconstruction of the criminal case.Witnesses5 involvement is first subcategorized,and there are two circumstances concerning their involvements,one being single suspect versus victim(s)crime and the other multiple suspects versus victim(s)crime.The present study takes four witness statements from a single suspect malicious injury case as data to further analyze the effects exerted by different witness involvements on witness statements and their corresponding representations.Results of the analysis indicate that how witnesses are involved in the criminal event exert different effects on witness statements in three aspects as follows:narrative structure,participant distribution,and language strategies.The results of this study further revealed that the more legal responsibility a witness is likely to take for the criminal event,the more transformations he would make in his narrative reconstruction of the crime.展开更多
Production Recovery China’s apparel industry saw a sharp increase in the output for the January-September period, according to data collected from statistics-worthy
In Lianyungang,a city on the eastern coast of China,is a hill known as Kongwang,which translates as'Confucius Contemplates,'a name it received after the great philosopher Confucius(Kong Zi in Chinese)
San Antonio,May 3,2024—The 16th Annual meeting of the World Chinese Urological Society(WCUS)was successfully held in San Antonio,drawing together experts and scholars from around the globe in the field of Chinese uro...San Antonio,May 3,2024—The 16th Annual meeting of the World Chinese Urological Society(WCUS)was successfully held in San Antonio,drawing together experts and scholars from around the globe in the field of Chinese urology.This conference served as a platform for academic exchange,as well as an occasion for medical professionals of Chinese descent to learn from,inspire,and motivate one another.Such events are crucial for advancing research and clinical practice in Chinese urology worldwide,and the success of this conference signals a bright and progressive future for the field.展开更多
NCPA Children’s Opera Commission Effendi&His Double.Date:May 23-June 1,2025,Venue:National Center for the Performing Arts.The opera tells a story about a figure named Effendi waging a battle of wits against his d...NCPA Children’s Opera Commission Effendi&His Double.Date:May 23-June 1,2025,Venue:National Center for the Performing Arts.The opera tells a story about a figure named Effendi waging a battle of wits against his double in Sun City.He maintains justice by punishing the fake Effendi,who cheats the citizens of Sun City.展开更多
THE people of Xinjiang have always needed to be resilient.Over four-hour flight time from Beijing,Xinjiang Uygur Autonomous Region is located on China’s western border.Historically,Xinjiang’s people have needed to h...THE people of Xinjiang have always needed to be resilient.Over four-hour flight time from Beijing,Xinjiang Uygur Autonomous Region is located on China’s western border.Historically,Xinjiang’s people have needed to hold steadfast against invaders while encouraging trade between China and central Asia,Europe and beyond.For 25 years until 2016,they also witnessed multiple atrocities perpetrated by separatists.展开更多
语言学习不应仅限于词法和句法的学习,而应更加关注词汇在语境中的整体性意义。本研究借助美国当代英语语料库(COCA),以动词witness为节点词来研究扩展意义单位,分析该词的类联接特点、搭配词的语义倾向以及结合语境所体现的语义韵信息...语言学习不应仅限于词法和句法的学习,而应更加关注词汇在语境中的整体性意义。本研究借助美国当代英语语料库(COCA),以动词witness为节点词来研究扩展意义单位,分析该词的类联接特点、搭配词的语义倾向以及结合语境所体现的语义韵信息。研究发现,动词witness主要与名词、副词搭配,其中名词搭配强调事件描述,副词搭配突出时间体验。此外,该词还能与介词、助动词、副词、代词、冠词和名词等词类进行多样化的类联接,构成丰富的句法结构。在语义倾向方面,witness体现出直接性、亲历性,并常与重大事件相关联。其语义韵以中性和消极倾向为主,积极倾向较少。研究为理解witness词汇提供了新的视角,并为语言学习和教学提供了实用框架。Language learning should extend beyond morphology and syntax to encompass the holistic meaning of vocabulary in context. This study employs the Corpus of Contemporary American English (COCA) to investigate the extended unit of meaning of the verb witness, analyzing its collocational patterns, the semantic tendencies of its co-occurring words, and semantic prosody information embodied in the context. The findings reveal that the verb witness primarily collocates with nouns and adverbs, with noun collocations emphasizing event description and adverb collocations highlighting temporal experience. Additionally, witness forms diverse syntactic structures through various collocations with prepositions, auxiliary verbs, pronouns, determiners, nouns, and other word classes. In terms of semantic tendencies, witness conveys directness, firsthand experience, and is often associated with significant events. Its semantic prosody is predominantly neutral or negative, with fewer instances of positive connotations. This study provides new insights for understanding the lexical behavior of witness and a practical framework for language learning and teaching.展开更多
基金partially supported by National Natural Science Foundation of China(11671294,12071336)。
文摘For n≥3,we construct a class{Wn,π1,π2}of n^(2)×n^(2) hermitian matrices by the permutation pairs and show that,for a pair{π1,π2}of permutations on(1,2,…,n),Wn,π1,π2 is an entanglement witness of the n⊗n system if{π1,π2}has the property(C).Recall that a pair{π1,π2}of permutations of(1,2,…,n)has the property(C)if,for each i,one can obtain a permutation of(1,…,i−1,i+1,…,n)from(π1(1),…,π1(i−1),π1(i+1),…,π1(n))and(π2(1),…,π2(i−1),π2(i+1),…,π2(n)).We further prove that Wn,π1,π2 is not comparable with Wn,π,which is the entanglement witness constructed from a single permutationπ;Wn,π1,π2 is decomposable ifπ1π2=id orπ21=π22=id.For the low dimensional cases n∈{3,4},we give a sufficient and necessary condition onπ1,π2 for Wn,π1,π2 to be an entanglement witness.We also show that,for n∈{3,4},Wn,π1,π2 is decomposable if and only ifπ1π2=id orπ21=π22=id;W3,π1,π2 is optimal if and only if(π1,π2)=(π,π2),whereπ=(2,3,1).As applications,some entanglement criteria for states and some decomposability criteria for positive maps are established.
文摘 China, in 2005, had gone through a year of trade disputes with some major trade partners such as the United States of America, the European,etc..But what was the impact of the disputes on China's trade relations with them? The documents of the China Ministry of Commerce show that all the relations had witnessed a optimistic development, with active fruits ahieved as well.……
文摘On the occasion of the 20th anniversary of the founding of Gofront Dyeing&Finishing Machinery Manufacturer Ltd.,the Documentary"Originality Made"made by CCTV-9 Discovery channel,during which Gofront Dyeing&Finishing was selected as the first dyeing and finishing equipment manufacturing enterprise in China,presented its premiere in Guangzhou,on November 24th,2017.
基金Supported by the National Natural Science Foundation of China(Grant No:61871347)。
文摘A quantum entangled state is easily disturbed by noise and degenerates into a separable state.Compared to the entanglement with bipartite quantum systems,less progress has been made for the entanglement with multipartite quantum systems.For tripartite separability of a four-qubit system,we propose two entanglement witnesses,each of which corresponds to a necessary condition of tripartite separability.For the four-qubit GHZ state mixed with a W state and white noise,we prove that the necessary conditions of tripartite separability are also sufficient at W states side.
基金supported by the National Natural Science Foundation of China (Grant No. 12301580)the Funds of the College of Information Science and Technology, Beijing University of Chemical Technology (Grant No. 0104/11170044115)。
文摘Higher dimensional entangled states demonstrate significant advantages in quantum information processing tasks. The Schmidt number is a quantity of the entanglement dimension of a bipartite state. Here we build families of k-positive maps from the symmetric information complete positive operator-valued measurements and mutually unbiased bases, and we also present the Schmidt number witnesses, correspondingly. At last, based on the witnesses obtained from mutually unbiased bases, we show the distance between a bipartite state and the set of states with a Schmidt number less than k.
文摘According to Roland Berger Strat-egy Consultants 2014 outlook on China’s healthcare services industry released on January 10th,2014,Ro-land Berger believes that Chinese healthcare market and industry will see structural shifts and dynamic changes over the next decade,with 2014 marking an important start to this process.This year is likely to witness
文摘The main significance of witnesses＇ appearing in court to testify in criminal trials is that this practice guarantees the defendant＇s right to confrontation. The issue can thus be framed in another way, as the issue of the appearance in court of the necessary witnesses. Here, the defendant＇s right to confront is the key point. Since neither China＇s criminal procedural law nor corresponding judicial interpretations have granted the defendant the right to confront, the rate of appearance of the necessary witnesses amounts in practice to only about twenty- five percent. Criminal trials conducted in the absence of the right to confrontation usually conform to the doctrine of positive substantive truth and manifest a lack of care in conviction and sentencing as well as reliance on a single source of legitimacy in reaching judgments. To correct this state of affairs, it is necessary to institute the right to confront and corresponding safeguards.
基金This paper is supported by"the Opening Project of Key Laboratory ofEvidence Science(China University of Political Science and Law),Project No.2016KFKT09."。
文摘The present study,based on Labov's narrative theory,focuses on how witnesses,involvement affects their narrative reconstruction of the criminal case.Witnesses5 involvement is first subcategorized,and there are two circumstances concerning their involvements,one being single suspect versus victim(s)crime and the other multiple suspects versus victim(s)crime.The present study takes four witness statements from a single suspect malicious injury case as data to further analyze the effects exerted by different witness involvements on witness statements and their corresponding representations.Results of the analysis indicate that how witnesses are involved in the criminal event exert different effects on witness statements in three aspects as follows:narrative structure,participant distribution,and language strategies.The results of this study further revealed that the more legal responsibility a witness is likely to take for the criminal event,the more transformations he would make in his narrative reconstruction of the crime.
文摘Viscose and terylene staple fi ber market is very hot as prices rise this year.The main reason for the positive market activity is that cotton prices
文摘Production Recovery China’s apparel industry saw a sharp increase in the output for the January-September period, according to data collected from statistics-worthy
文摘In Lianyungang,a city on the eastern coast of China,is a hill known as Kongwang,which translates as'Confucius Contemplates,'a name it received after the great philosopher Confucius(Kong Zi in Chinese)
文摘San Antonio,May 3,2024—The 16th Annual meeting of the World Chinese Urological Society(WCUS)was successfully held in San Antonio,drawing together experts and scholars from around the globe in the field of Chinese urology.This conference served as a platform for academic exchange,as well as an occasion for medical professionals of Chinese descent to learn from,inspire,and motivate one another.Such events are crucial for advancing research and clinical practice in Chinese urology worldwide,and the success of this conference signals a bright and progressive future for the field.
文摘NCPA Children’s Opera Commission Effendi&His Double.Date:May 23-June 1,2025,Venue:National Center for the Performing Arts.The opera tells a story about a figure named Effendi waging a battle of wits against his double in Sun City.He maintains justice by punishing the fake Effendi,who cheats the citizens of Sun City.
文摘THE people of Xinjiang have always needed to be resilient.Over four-hour flight time from Beijing,Xinjiang Uygur Autonomous Region is located on China’s western border.Historically,Xinjiang’s people have needed to hold steadfast against invaders while encouraging trade between China and central Asia,Europe and beyond.For 25 years until 2016,they also witnessed multiple atrocities perpetrated by separatists.
文摘语言学习不应仅限于词法和句法的学习,而应更加关注词汇在语境中的整体性意义。本研究借助美国当代英语语料库(COCA),以动词witness为节点词来研究扩展意义单位,分析该词的类联接特点、搭配词的语义倾向以及结合语境所体现的语义韵信息。研究发现,动词witness主要与名词、副词搭配,其中名词搭配强调事件描述,副词搭配突出时间体验。此外,该词还能与介词、助动词、副词、代词、冠词和名词等词类进行多样化的类联接,构成丰富的句法结构。在语义倾向方面,witness体现出直接性、亲历性,并常与重大事件相关联。其语义韵以中性和消极倾向为主,积极倾向较少。研究为理解witness词汇提供了新的视角,并为语言学习和教学提供了实用框架。Language learning should extend beyond morphology and syntax to encompass the holistic meaning of vocabulary in context. This study employs the Corpus of Contemporary American English (COCA) to investigate the extended unit of meaning of the verb witness, analyzing its collocational patterns, the semantic tendencies of its co-occurring words, and semantic prosody information embodied in the context. The findings reveal that the verb witness primarily collocates with nouns and adverbs, with noun collocations emphasizing event description and adverb collocations highlighting temporal experience. Additionally, witness forms diverse syntactic structures through various collocations with prepositions, auxiliary verbs, pronouns, determiners, nouns, and other word classes. In terms of semantic tendencies, witness conveys directness, firsthand experience, and is often associated with significant events. Its semantic prosody is predominantly neutral or negative, with fewer instances of positive connotations. This study provides new insights for understanding the lexical behavior of witness and a practical framework for language learning and teaching.
