There is a strong drive towards hyperresolution earth system models in order to resolve finer scales of motion in the atmosphere.The problem of obtaining more realistic representation of terrestrial fluxes of heat and...There is a strong drive towards hyperresolution earth system models in order to resolve finer scales of motion in the atmosphere.The problem of obtaining more realistic representation of terrestrial fluxes of heat and water,however,is not just a problem of moving to hyperresolution grid scales.It is much more a question of a lack of knowledge about the parameterisation of processes at whatever grid scale is being used for a wider modelling problem.Hyperresolution grid scales cannot alone solve the problem of this hyperresolution ignorance.This paper discusses these issues in more detail with specific reference to land surface parameterisations and flood inundation models.The importance of making local hyperresolution model predictions available for evaluation by local stakeholders is stressed.It is expected that this will be a major driving force for improving model performance in the future.展开更多
CONTROL systems are everywhere – chemical plants,energy systems, manufacturing, homes and buildings,automobiles and trains, medical devices, cellular telephones and internet, aircraft and spacecraft. Recent developme...CONTROL systems are everywhere – chemical plants,energy systems, manufacturing, homes and buildings,automobiles and trains, medical devices, cellular telephones and internet, aircraft and spacecraft. Recent developments in these fields bring up the systems with the unprecedented scope, scale and complexity such as cyber-physical and human systems, and the required control task becomes more challenging than ever [1]。展开更多
Golfer Once there was a golfer whose ballanded on an anthill(蚁丘)Rather than move the ball,he decided to hitit when it lay.He gavea mighty(有力的)swing.Clouds of dirt and sand and ants flew everywhere.Everything move...Golfer Once there was a golfer whose ballanded on an anthill(蚁丘)Rather than move the ball,he decided to hitit when it lay.He gavea mighty(有力的)swing.Clouds of dirt and sand and ants flew everywhere.Everything moved but the golf ball It sat right at thesame spot.展开更多
Dear Mr.Sam,I have found that competition(竞争)is everywhere in our lives,from exam grades and daily performances to different kinds of contests(比赛).I feel nervous about that.What does competition mean to a teenager...Dear Mr.Sam,I have found that competition(竞争)is everywhere in our lives,from exam grades and daily performances to different kinds of contests(比赛).I feel nervous about that.What does competition mean to a teenager?How should I look at winning and losing?展开更多
The outbreak of the An Shi Rebellion brought numerous hardships to Du Fu,who was displaced.Taking his family members,Du Fu escaped all the way northwards.He could see neither people nor food,just desolation everywhere...The outbreak of the An Shi Rebellion brought numerous hardships to Du Fu,who was displaced.Taking his family members,Du Fu escaped all the way northwards.He could see neither people nor food,just desolation everywhere.When his child was starved.展开更多
The aim of this paper is to state some conjectures and problems on Bochner-Riesz means in multiple Fourier series and integrals. The progress on these conjectures and problems are also mentioned.
The authors discuss the boundedness and approximation properties of translation and mean operator on H 1(S ) by the estimates of high degree difference on ultraspherical polynomials, atom de- composition and construct...The authors discuss the boundedness and approximation properties of translation and mean operator on H 1(S ) by the estimates of high degree difference on ultraspherical polynomials, atom de- composition and construct properties on sphere. Also the boundedness and approximation of linear means at all kinds of indexes on H p(0 < p < 1) and the almost everywhere convergence of Cesro means are established.展开更多
Let V be a star shaped region. In 2006, Colzani, Meaney and Prestini proved that if function f satisfies some condition, then the multiplier transform with the characteristic function of tV as the multiplier tends to ...Let V be a star shaped region. In 2006, Colzani, Meaney and Prestini proved that if function f satisfies some condition, then the multiplier transform with the characteristic function of tV as the multiplier tends to f almost everywhere, when t goes to∞. In this paper we use a Theorem established by K.K.Chen to show that if we change their multiplier, then the condition on f can be weakened.展开更多
In the context of a global subcontracting system that pushes workers toward a race to the bottom, the present article explores assertions for dignified labor in the Foxconn workers＇ actions and in the literary texts...In the context of a global subcontracting system that pushes workers toward a race to the bottom, the present article explores assertions for dignified labor in the Foxconn workers＇ actions and in the literary texts Na＇ar （2004） and Heroes Everywhere （2005）, as well as in the film The Piano in a Factory（2011）. By tracing the dialectical relationship between memories of dignified labor during the high socialist era, and critical expressions of present day degradation, the article finds a shift from the critique of global capital to proactive nostalgia for the previous era. Proactive nostalgia goes beyond the perception of China＇s high socialist era as traumatic. What is absent in the Foxconn labor experience, but still alive in workers＇ unconscious, is a world of dignified labor. By documenting how labor was once imbued with dignity in the recent past, these texts function as prosthetic memories for the next generation of workers, and a cultural resource for overcoming the current trauma of dehumanizing working conditions.展开更多
The strong summation of FourierLaplace series in logarithmic subclasses of L2(∑d)defined in terms of moduli of continuity is of interest.In this note,the almost everywhere convergence rates of the Cesaro means for Fo...The strong summation of FourierLaplace series in logarithmic subclasses of L2(∑d)defined in terms of moduli of continuity is of interest.In this note,the almost everywhere convergence rates of the Cesaro means for Fourier-Laplace series of the convex subclasses are obtained.The strong approximation order of the Cesaro means and the partial summation operators are also presented.展开更多
Consider the multiple regression model yi=β1xi1+…+βpxip+ei i=1, 2,…, （1） where xij are known constants, β1, …,βp are unknown parameters, and ei. are unobservable random variables. Throughout the sequel let Xn...Consider the multiple regression model yi=β1xi1+…+βpxip+ei i=1, 2,…, （1） where xij are known constants, β1, …,βp are unknown parameters, and ei. are unobservable random variables. Throughout the sequel let Xn denote the design matrix (xij)1≤i≤,1≤j≤p, and let Yn=（y1,…, yn）’, and β=（β1,…,βp）’. For n≥p,展开更多
They're here.They're there.They're everywhere.If you live in China,you've almost certainly had some interaction,however brief and impersonal,with one of the country's many gig economy workers.
Let M<sup>n</sup> be an n-dimensional compact submanifold in a unit sphere S<sup>n+p</sup>, S be the square of the length of the second fundamental form of M<sup>n</sup>. S. T. Yau ...Let M<sup>n</sup> be an n-dimensional compact submanifold in a unit sphere S<sup>n+p</sup>, S be the square of the length of the second fundamental form of M<sup>n</sup>. S. T. Yau proved that if the mean curvature vector is parallel and S≤n/(n<sup>1/2</sup>+3-1/（p-1）) everywhere on M<sup>n</sup> then M<sup>n</sup> lies in a totally geodesic S<sup>n+1</sup>. The constant has been improved to max,展开更多
基金supported by two UK Natural Environment Research Council Projects CREDIBLE(Grant NO.NE/J017299/1)and SINATRA(Grant No.NE/K00896X/1)
文摘There is a strong drive towards hyperresolution earth system models in order to resolve finer scales of motion in the atmosphere.The problem of obtaining more realistic representation of terrestrial fluxes of heat and water,however,is not just a problem of moving to hyperresolution grid scales.It is much more a question of a lack of knowledge about the parameterisation of processes at whatever grid scale is being used for a wider modelling problem.Hyperresolution grid scales cannot alone solve the problem of this hyperresolution ignorance.This paper discusses these issues in more detail with specific reference to land surface parameterisations and flood inundation models.The importance of making local hyperresolution model predictions available for evaluation by local stakeholders is stressed.It is expected that this will be a major driving force for improving model performance in the future.
文摘CONTROL systems are everywhere – chemical plants,energy systems, manufacturing, homes and buildings,automobiles and trains, medical devices, cellular telephones and internet, aircraft and spacecraft. Recent developments in these fields bring up the systems with the unprecedented scope, scale and complexity such as cyber-physical and human systems, and the required control task becomes more challenging than ever [1]。
文摘Golfer Once there was a golfer whose ballanded on an anthill(蚁丘)Rather than move the ball,he decided to hitit when it lay.He gavea mighty(有力的)swing.Clouds of dirt and sand and ants flew everywhere.Everything moved but the golf ball It sat right at thesame spot.
文摘Dear Mr.Sam,I have found that competition(竞争)is everywhere in our lives,from exam grades and daily performances to different kinds of contests(比赛).I feel nervous about that.What does competition mean to a teenager?How should I look at winning and losing?
文摘The outbreak of the An Shi Rebellion brought numerous hardships to Du Fu,who was displaced.Taking his family members,Du Fu escaped all the way northwards.He could see neither people nor food,just desolation everywhere.When his child was starved.
文摘The aim of this paper is to state some conjectures and problems on Bochner-Riesz means in multiple Fourier series and integrals. The progress on these conjectures and problems are also mentioned.
基金supported by the National Natural Science Foundation of China(Grant No.10071007)the Foundation of Science and Technology Innovation(211270042).
文摘The authors discuss the boundedness and approximation properties of translation and mean operator on H 1(S ) by the estimates of high degree difference on ultraspherical polynomials, atom de- composition and construct properties on sphere. Also the boundedness and approximation of linear means at all kinds of indexes on H p(0 < p < 1) and the almost everywhere convergence of Cesro means are established.
基金Supported by the National Natural Science Foundation of China(11071065,11171306)
文摘Let V be a star shaped region. In 2006, Colzani, Meaney and Prestini proved that if function f satisfies some condition, then the multiplier transform with the characteristic function of tV as the multiplier tends to f almost everywhere, when t goes to∞. In this paper we use a Theorem established by K.K.Chen to show that if we change their multiplier, then the condition on f can be weakened.
文摘In the context of a global subcontracting system that pushes workers toward a race to the bottom, the present article explores assertions for dignified labor in the Foxconn workers＇ actions and in the literary texts Na＇ar （2004） and Heroes Everywhere （2005）, as well as in the film The Piano in a Factory（2011）. By tracing the dialectical relationship between memories of dignified labor during the high socialist era, and critical expressions of present day degradation, the article finds a shift from the critique of global capital to proactive nostalgia for the previous era. Proactive nostalgia goes beyond the perception of China＇s high socialist era as traumatic. What is absent in the Foxconn labor experience, but still alive in workers＇ unconscious, is a world of dignified labor. By documenting how labor was once imbued with dignity in the recent past, these texts function as prosthetic memories for the next generation of workers, and a cultural resource for overcoming the current trauma of dehumanizing working conditions.
文摘The strong summation of FourierLaplace series in logarithmic subclasses of L2(∑d)defined in terms of moduli of continuity is of interest.In this note,the almost everywhere convergence rates of the Cesaro means for Fourier-Laplace series of the convex subclasses are obtained.The strong approximation order of the Cesaro means and the partial summation operators are also presented.
基金Research supported by the National Science Foundation and the National Institutes of Health under grants NSF-MCS-80-05811 and Rol-GM-27976-01
文摘Consider the multiple regression model yi=β1xi1+…+βpxip+ei i=1, 2,…, （1） where xij are known constants, β1, …,βp are unknown parameters, and ei. are unobservable random variables. Throughout the sequel let Xn denote the design matrix (xij)1≤i≤,1≤j≤p, and let Yn=（y1,…, yn）’, and β=（β1,…,βp）’. For n≥p,
文摘They're here.They're there.They're everywhere.If you live in China,you've almost certainly had some interaction,however brief and impersonal,with one of the country's many gig economy workers.
基金Project supported partially by the National Natural Science Foundation of China
文摘Let M<sup>n</sup> be an n-dimensional compact submanifold in a unit sphere S<sup>n+p</sup>, S be the square of the length of the second fundamental form of M<sup>n</sup>. S. T. Yau proved that if the mean curvature vector is parallel and S≤n/(n<sup>1/2</sup>+3-1/（p-1）) everywhere on M<sup>n</sup> then M<sup>n</sup> lies in a totally geodesic S<sup>n+1</sup>. The constant has been improved to max,
