An online ride-hailing driver(ORHD)refers to a driver who takes orders and provides rental car services to passengers via an online service platform.1 ORHD plays a significant role in the urban transport system worldw...An online ride-hailing driver(ORHD)refers to a driver who takes orders and provides rental car services to passengers via an online service platform.1 ORHD plays a significant role in the urban transport system worldwide,operating through many platforms.According to official data from the Chinese Ministry of Transport,a total of 1.6 million vehicle transport permits were issued by the end of March 2022.展开更多
In many songbird species,birdsong features phonological syntax,meaning that the units within their vocal se-quences are ordered in a non-random way that adheres to a rule.While such syntactical patterns have been rich...In many songbird species,birdsong features phonological syntax,meaning that the units within their vocal se-quences are ordered in a non-random way that adheres to a rule.While such syntactical patterns have been richly described in many species,comparatively little is known about how those patterns contribute to song achieving its important functions.For each of song’s main functions,territorial defense and mate attraction,evidence of a role for syntax is limited.One species for which syntax has been thoroughly described is the Hermit Thrush(Catharus guttatus),which presents song types from their repertoires in a semi-predictable order and,in doing so,rapidly cycle up and down the frequency spectrum.The objective of the present study was to explore the importance of song syntax in the Hermit Thrush through a within-subject examination of how measures of syntax,such as the predictability of song type order within song sequences,shift over the breeding season.We hypothesized that,if such syntactical characteristics are important to breeding behaviour,they would be most prominent at the start of the breeding season when activity associated with territory establishment and mate attraction is most intense.Analysis revealed that,as predicted,the rigidness of song type ordering within se-quences was highest at the start of the season and declined thereafter.That song type sequences were most predictable at the vitally important early part of the breeding season fit our hypothesis that this aspect of song syntax is important to song’s functions related to territory establishment and/or mate attraction.Future work will clarify whether that role relates to one of song’s two main functions or serves song transmission in some broader way.展开更多
Kuantan,the capital of Pahang State on the east coast of Malaysia,is a quiet town,where the Kuantan River winds and flows into the sea.The Malaysia-China Kuantan Industry Park,a major project of the Belt and Road Init...Kuantan,the capital of Pahang State on the east coast of Malaysia,is a quiet town,where the Kuantan River winds and flows into the sea.The Malaysia-China Kuantan Industry Park,a major project of the Belt and Road Initiative and a demonstration base for cross-border international capacity cooperation,is located here.Since the official opening of the park in 2013,it has created an innovative model of economic cooperation between the two countries.In 2023,on the 10th Anniversary of the Kuantan Industrial Park,a new development plan was launched again-the 3rd plot of the Malaysia-China Kuantan Industry Park,known as Malaysia-China Kuantan International Logistics Park,was officially started.展开更多
In April 2024,the Cambodian edition of The Customs of Cambodia,organized by the Center for Asia-Pacific of China International Communications Group(CICG)and published by Foreign Languages Press under CICG,was official...In April 2024,the Cambodian edition of The Customs of Cambodia,organized by the Center for Asia-Pacific of China International Communications Group(CICG)and published by Foreign Languages Press under CICG,was officially released in Phnom Penh,Cambodia.The launch ceremony was attended by Wang Yi,member of the Political Bureau of the Communist Party of China(CPC)Central Committee and director of the Office of the Foreign Affairs Commission of the CPC Central Committee,and Cambodian Deputy Prime Minister Sun Chanthol.A crucial text for the study of the history of ancient Cambodia,The Customs of Cambodia has been translated into more than 10 languages and published in over 20 editions since the early 19th Century.展开更多
Impoverished sub-Saharan Africa(SSA)is under increasing environmental pressure from global environmental changes.It is now generally accepted in academic circles that economic development in SSA countries can cause en...Impoverished sub-Saharan Africa(SSA)is under increasing environmental pressure from global environmental changes.It is now generally accepted in academic circles that economic development in SSA countries can cause environmental pressure in other countries.However,there is research gap on the impact of economic assistance on environmental pressure in SSA countries and whether economic assistance causes spatial spillovers of environ-mental pressure between SSA countries.To better understand the impact of economic assistance on environmental pressures in SSA,a dynamic spatial Dubin panel model was developed.It helped us explore the spatial spillover effects of economic assistance on environmental pressures in recipient countries based on the panel data from 34 SSA countries.The results show that economic assistance had a positive stimulating effect on environmen-tal pressures of recipient countries,which means that the degree of human disturbance to the environment has deepened.Due to the regional correlation effect,neighboring countries were saddled with environmental pres-sures from the target country.Moreover,environmental pressures have time inertia,which can easily produce a snowball effect.The decomposition of effects shows that the impact of economic assistance on environmental pressures is relatively minor.Environmental pressures have spillover effects,so to deal with diffuse risks,joint regional prevention and control policies should be developed.展开更多
Viscoelastic foundation plays a very important role in civil engineering. It can effectively disperse the structural load into the foundation soil and avoid the damage caused by the concentrated load. The model of Eul...Viscoelastic foundation plays a very important role in civil engineering. It can effectively disperse the structural load into the foundation soil and avoid the damage caused by the concentrated load. The model of Euler-Bernoulli beam on viscoelastic Pasternak foundation can be used to analyze the deformation and response of buildings under complex geological conditions. In this paper, we use Hermite finite element method to get the numerical approximation scheme for the vibration equation of viscoelastic Pasternak foundation beam. Convergence and error estimation are rigourously established. We prove that the fully discrete scheme has convergence order O(τ2+h4), where τis time step size and his space step size. Finally, we give four numerical examples to verify the validity of theoretical analysis.展开更多
The dawn of 2024 marked a significant milestone in the geopolitical landscape as Egypt,Ethiopia,Saudi Arabia,Iran and the United Arab Emirates(UAE)officially joined the BRICS grouping.This expansion,the second phase o...The dawn of 2024 marked a significant milestone in the geopolitical landscape as Egypt,Ethiopia,Saudi Arabia,Iran and the United Arab Emirates(UAE)officially joined the BRICS grouping.This expansion,the second phase of the growth for the grouping since South Africa’s inclusion in 2011,signals a pivotal moment for the developing world.展开更多
African youth applaud Chinese success in mitigating climate change impact.On a cool,sunny autumn day in Beijing,some 30 officials,experts and technicians from 17 Belt and Road countries,including Brazil,Thailand,Ugand...African youth applaud Chinese success in mitigating climate change impact.On a cool,sunny autumn day in Beijing,some 30 officials,experts and technicians from 17 Belt and Road countries,including Brazil,Thailand,Uganda,Egypt and Jordan,gathered at the city’s prestigious Tsinghua University to discuss climate change cooperation.Held on 2 September,just before the 2024 Summit of the Forum on China-Africa Cooperation(FOCAC).展开更多
In expansions of arbitrary functions in Bessel functions or Spherical Bessel functions, a dual partner set of polynomials play a role. For the Bessel functions, these are the Chebyshev polynomials of first kind and fo...In expansions of arbitrary functions in Bessel functions or Spherical Bessel functions, a dual partner set of polynomials play a role. For the Bessel functions, these are the Chebyshev polynomials of first kind and for the Spherical Bessel functions the Legendre polynomials. These two sets of functions appear in many formulas of the expansion and in the completeness and (bi)-orthogonality relations. The analogy to expansions of functions in Taylor series and in moment series and to expansions in Hermite functions is elaborated. Besides other special expansion, we find the expansion of Bessel functions in Spherical Bessel functions and their inversion and of Chebyshev polynomials of first kind in Legendre polynomials and their inversion. For the operators which generate the Spherical Bessel functions from a basic Spherical Bessel function, the normally ordered (or disentangled) form is found.展开更多
In late February,Wang Yi,director of the Office of the Foreign Affairs Commission of the Communist Party of China Central Committee,paid an official visit to four European countries.He first traveled to Germany,where ...In late February,Wang Yi,director of the Office of the Foreign Affairs Commission of the Communist Party of China Central Committee,paid an official visit to four European countries.He first traveled to Germany,where he spoke at the Munich Security Conference;he then went to France,Italy and Hungary.One of the purposes of Wang’s short tour was to contribute to the ongoing efforts to warm up ties between China and the EU.Chinese Vice Premier Sun Chunlan visited Greece in the same period,for that same reason.展开更多
Government Work Report is essential for domestic and international understanding of China’s national conditions.This paper selects the national defense section in Government Work Reports released by the State Council...Government Work Report is essential for domestic and international understanding of China’s national conditions.This paper selects the national defense section in Government Work Reports released by the State Council of the People’s Republic of China over the last fifteen years from 2009 to 2023 as an example of China’s official discourse.From the perspective of positive discourse analysis,the theory of three meta-functions of language proposed by M.A.K.Halliday in Systemic Functional Linguistics is used in this article in terms of transitivity,appraisal,mood,modality,and theme to explore the constructing of the People’s Liberation Army(PLA)image.This study finds that,by using the goals and circumstances with optimistic meaning in material processes,adopting more appreciation in attitude,applying more declaratives in mood,utilizing modal operators with high modulation,and implicit objective modal adjuncts,and employing government-focused themes,China’s official discourse objectively and authentically conveys a positive image of the brave and just PLA both at home and abroad which advocates itself to peace-keeping,and mission-fulfilling.展开更多
Based on the technique of integration within an ordered product of operators, we derive new bosonic operators, ordering identities by using entangled state representation and the properties of two-variable Hermite pol...Based on the technique of integration within an ordered product of operators, we derive new bosonic operators, ordering identities by using entangled state representation and the properties of two-variable Hermite polynomials , and vice versa. In doing so, some concise normally (antinormally) ordering operator identities, such as : are obtained.展开更多
We derive some new generating function formulae of the two-variable Hermite polynomials, such as ∞∑n=0tm/m!Hn,2m（x）,∞∑n=0sntm/n!m!H2n,2m（x,y）,and ∞∑n=0sntm/n!m!H2n＋l,2m＋k（x,y）.We employ the operator Herm...We derive some new generating function formulae of the two-variable Hermite polynomials, such as ∞∑n=0tm/m!Hn,2m（x）,∞∑n=0sntm/n!m!H2n,2m（x,y）,and ∞∑n=0sntm/n!m!H2n＋l,2m＋k（x,y）.We employ the operator Hermite polynomial method and the technique of integration within an ordered product of operators to solve these problems, which will be useful in constructing new optical field states.展开更多
基金This research received funds from National Social Science Fund of China(22&ZD142).
文摘An online ride-hailing driver(ORHD)refers to a driver who takes orders and provides rental car services to passengers via an online service platform.1 ORHD plays a significant role in the urban transport system worldwide,operating through many platforms.According to official data from the Chinese Ministry of Transport,a total of 1.6 million vehicle transport permits were issued by the end of March 2022.
基金partly funded by an NSERC Discovery Grant received by LS Phillmorea UNB University Research Fund grant received by SP Roach
文摘In many songbird species,birdsong features phonological syntax,meaning that the units within their vocal se-quences are ordered in a non-random way that adheres to a rule.While such syntactical patterns have been richly described in many species,comparatively little is known about how those patterns contribute to song achieving its important functions.For each of song’s main functions,territorial defense and mate attraction,evidence of a role for syntax is limited.One species for which syntax has been thoroughly described is the Hermit Thrush(Catharus guttatus),which presents song types from their repertoires in a semi-predictable order and,in doing so,rapidly cycle up and down the frequency spectrum.The objective of the present study was to explore the importance of song syntax in the Hermit Thrush through a within-subject examination of how measures of syntax,such as the predictability of song type order within song sequences,shift over the breeding season.We hypothesized that,if such syntactical characteristics are important to breeding behaviour,they would be most prominent at the start of the breeding season when activity associated with territory establishment and mate attraction is most intense.Analysis revealed that,as predicted,the rigidness of song type ordering within se-quences was highest at the start of the season and declined thereafter.That song type sequences were most predictable at the vitally important early part of the breeding season fit our hypothesis that this aspect of song syntax is important to song’s functions related to territory establishment and/or mate attraction.Future work will clarify whether that role relates to one of song’s two main functions or serves song transmission in some broader way.
文摘Kuantan,the capital of Pahang State on the east coast of Malaysia,is a quiet town,where the Kuantan River winds and flows into the sea.The Malaysia-China Kuantan Industry Park,a major project of the Belt and Road Initiative and a demonstration base for cross-border international capacity cooperation,is located here.Since the official opening of the park in 2013,it has created an innovative model of economic cooperation between the two countries.In 2023,on the 10th Anniversary of the Kuantan Industrial Park,a new development plan was launched again-the 3rd plot of the Malaysia-China Kuantan Industry Park,known as Malaysia-China Kuantan International Logistics Park,was officially started.
文摘In April 2024,the Cambodian edition of The Customs of Cambodia,organized by the Center for Asia-Pacific of China International Communications Group(CICG)and published by Foreign Languages Press under CICG,was officially released in Phnom Penh,Cambodia.The launch ceremony was attended by Wang Yi,member of the Political Bureau of the Communist Party of China(CPC)Central Committee and director of the Office of the Foreign Affairs Commission of the CPC Central Committee,and Cambodian Deputy Prime Minister Sun Chanthol.A crucial text for the study of the history of ancient Cambodia,The Customs of Cambodia has been translated into more than 10 languages and published in over 20 editions since the early 19th Century.
基金This work is supported by National Natural Science Foundation of China(Grants No.72104246,71874203).
文摘Impoverished sub-Saharan Africa(SSA)is under increasing environmental pressure from global environmental changes.It is now generally accepted in academic circles that economic development in SSA countries can cause environmental pressure in other countries.However,there is research gap on the impact of economic assistance on environmental pressure in SSA countries and whether economic assistance causes spatial spillovers of environ-mental pressure between SSA countries.To better understand the impact of economic assistance on environmental pressures in SSA,a dynamic spatial Dubin panel model was developed.It helped us explore the spatial spillover effects of economic assistance on environmental pressures in recipient countries based on the panel data from 34 SSA countries.The results show that economic assistance had a positive stimulating effect on environmen-tal pressures of recipient countries,which means that the degree of human disturbance to the environment has deepened.Due to the regional correlation effect,neighboring countries were saddled with environmental pres-sures from the target country.Moreover,environmental pressures have time inertia,which can easily produce a snowball effect.The decomposition of effects shows that the impact of economic assistance on environmental pressures is relatively minor.Environmental pressures have spillover effects,so to deal with diffuse risks,joint regional prevention and control policies should be developed.
文摘Viscoelastic foundation plays a very important role in civil engineering. It can effectively disperse the structural load into the foundation soil and avoid the damage caused by the concentrated load. The model of Euler-Bernoulli beam on viscoelastic Pasternak foundation can be used to analyze the deformation and response of buildings under complex geological conditions. In this paper, we use Hermite finite element method to get the numerical approximation scheme for the vibration equation of viscoelastic Pasternak foundation beam. Convergence and error estimation are rigourously established. We prove that the fully discrete scheme has convergence order O(τ2+h4), where τis time step size and his space step size. Finally, we give four numerical examples to verify the validity of theoretical analysis.
文摘The dawn of 2024 marked a significant milestone in the geopolitical landscape as Egypt,Ethiopia,Saudi Arabia,Iran and the United Arab Emirates(UAE)officially joined the BRICS grouping.This expansion,the second phase of the growth for the grouping since South Africa’s inclusion in 2011,signals a pivotal moment for the developing world.
文摘African youth applaud Chinese success in mitigating climate change impact.On a cool,sunny autumn day in Beijing,some 30 officials,experts and technicians from 17 Belt and Road countries,including Brazil,Thailand,Uganda,Egypt and Jordan,gathered at the city’s prestigious Tsinghua University to discuss climate change cooperation.Held on 2 September,just before the 2024 Summit of the Forum on China-Africa Cooperation(FOCAC).
文摘In expansions of arbitrary functions in Bessel functions or Spherical Bessel functions, a dual partner set of polynomials play a role. For the Bessel functions, these are the Chebyshev polynomials of first kind and for the Spherical Bessel functions the Legendre polynomials. These two sets of functions appear in many formulas of the expansion and in the completeness and (bi)-orthogonality relations. The analogy to expansions of functions in Taylor series and in moment series and to expansions in Hermite functions is elaborated. Besides other special expansion, we find the expansion of Bessel functions in Spherical Bessel functions and their inversion and of Chebyshev polynomials of first kind in Legendre polynomials and their inversion. For the operators which generate the Spherical Bessel functions from a basic Spherical Bessel function, the normally ordered (or disentangled) form is found.
文摘In late February,Wang Yi,director of the Office of the Foreign Affairs Commission of the Communist Party of China Central Committee,paid an official visit to four European countries.He first traveled to Germany,where he spoke at the Munich Security Conference;he then went to France,Italy and Hungary.One of the purposes of Wang’s short tour was to contribute to the ongoing efforts to warm up ties between China and the EU.Chinese Vice Premier Sun Chunlan visited Greece in the same period,for that same reason.
文摘Government Work Report is essential for domestic and international understanding of China’s national conditions.This paper selects the national defense section in Government Work Reports released by the State Council of the People’s Republic of China over the last fifteen years from 2009 to 2023 as an example of China’s official discourse.From the perspective of positive discourse analysis,the theory of three meta-functions of language proposed by M.A.K.Halliday in Systemic Functional Linguistics is used in this article in terms of transitivity,appraisal,mood,modality,and theme to explore the constructing of the People’s Liberation Army(PLA)image.This study finds that,by using the goals and circumstances with optimistic meaning in material processes,adopting more appreciation in attitude,applying more declaratives in mood,utilizing modal operators with high modulation,and implicit objective modal adjuncts,and employing government-focused themes,China’s official discourse objectively and authentically conveys a positive image of the brave and just PLA both at home and abroad which advocates itself to peace-keeping,and mission-fulfilling.
文摘Based on the technique of integration within an ordered product of operators, we derive new bosonic operators, ordering identities by using entangled state representation and the properties of two-variable Hermite polynomials , and vice versa. In doing so, some concise normally (antinormally) ordering operator identities, such as : are obtained.
基金Project supported by the National Natural Science Foundation of China(Grnat No.11175113)the Fundamental Research Funds for the Central Universities of China(Grant No.WK2060140013)
文摘We derive some new generating function formulae of the two-variable Hermite polynomials, such as ∞∑n=0tm/m!Hn,2m（x）,∞∑n=0sntm/n!m!H2n,2m（x,y）,and ∞∑n=0sntm/n!m!H2n＋l,2m＋k（x,y）.We employ the operator Hermite polynomial method and the technique of integration within an ordered product of operators to solve these problems, which will be useful in constructing new optical field states.
