Along with necessaries applied and the going deeply into the research,that the uni-tary matrix and Hermite matrix are popularized in many kinds,and in this paper uni-versal unitary matrix and universal（oblique）Hermi...Along with necessaries applied and the going deeply into the research,that the uni-tary matrix and Hermite matrix are popularized in many kinds,and in this paper uni-versal unitary matrix and universal（oblique）Hermite matrix are studied further,and thismust be useful for matrix theory and applications（like optimization theory,symplecticgeometry and physics etc）.In the paper,C<sup>m×n</sup>shows m×n compound matrix set,C<sub>n</sub><sup>m×n</sup>shows n step compound invertible matrix set,A<sup>*</sup> shows conjugate transpose matrix of A,展开更多
This paper describes an analysis of the sound pressure levels at the exterior façade and inside the Hospital de Clínicas of the Federal University of Paraná. Measurements were taken at a total of ...This paper describes an analysis of the sound pressure levels at the exterior façade and inside the Hospital de Clínicas of the Federal University of Paraná. Measurements were taken at a total of 45 points, 24 at the exterior facade and 21 points inside the hospital on all the floors of the main building and in the maternity building. These 45 measurements were used to calculate the acoustic map of the hospital, which is located on General Carneiro Street, in the city of Curitiba, state of Paraná, Brazil. A comparison of the measured outdoor sound pressure levels against those established by Curitiba Municipal Law No. 10625 revealed that they all exceeded the daytime limit of 55 dB(A) permitted for areas around hospitals. The indoor sound pressure measurements and the noise levels for acoustic comfort established by the Brazilian technical standard ABNT NBR 10152 were compared, indicating that all the measured points, including those in the neonatal intensive care unit, exceeded the established limit of 35 dB(A) to 45 dB(A).展开更多
We present a model of a universe that transitions from an early deceleration phase to the current acceleration phase under the framework of general relativity, in the presence of gravitational coupling G（t） and cosm...We present a model of a universe that transitions from an early deceleration phase to the current acceleration phase under the framework of general relativity, in the presence of gravitational coupling G（t） and cosmological terms A（t）. Einstein＇s field equations have been solved by considering the time dependent deceleration parameter （DP） which renders the scale factor e = （thekt）1/m where m, n and k are positive con- stants. The cosmological term （A （t）） is found to be positive and a decreasing function of time, which supports the result obtained from observations of type Ia supernovae. The geometrical and kinematical features of the model are examined in detail.展开更多
Yale University President Richard Levin and Vice President Linda Lorimer visited Tsinghua on September 5, 2009. Tsinghua University President Gu Binglin welcomed them and briefed them on the latest developments in edu...Yale University President Richard Levin and Vice President Linda Lorimer visited Tsinghua on September 5, 2009. Tsinghua University President Gu Binglin welcomed them and briefed them on the latest developments in education and research at Tsinghua University. They also discussed cooperation on the 10 000 Women Program and Yale＇s Summer Program.展开更多
A Memorandum of Understanding was signed between Tsinghua University and the University of Wisconsin at Madison on May 24, 2007, during the visit of Chancellor John D. Wiley, the University of Wisconsin at Madison.
Vice-Chancellor Shirley Pearce awarded Tsinghua University President Gu Binglin a Loughborough University Honorary Doctorate on August 30, 2009 at a graduation ceremony held in Beijing to mark Loughborough＇s centenni...Vice-Chancellor Shirley Pearce awarded Tsinghua University President Gu Binglin a Loughborough University Honorary Doctorate on August 30, 2009 at a graduation ceremony held in Beijing to mark Loughborough＇s centennial. In accepting the doctorate, President Gu congratulated Loughborough on its centennial and expressed the hope that the two universities could build more collaborative partnerships in the coming years.展开更多
Premier vows to grant greater independence to universities in a quest for greater innovation On April 15,Chinese Premier Li Keqiang visited China’s two most prestigious universities,Tsinghua University and Peking Uni...Premier vows to grant greater independence to universities in a quest for greater innovation On April 15,Chinese Premier Li Keqiang visited China’s two most prestigious universities,Tsinghua University and Peking University.展开更多
The President of the California Institute of Technology Professor Jean-Lou Chameau and the Chancellor of the University of California at Santa Barbara Professor Henry Yang both delivered speeches in the Tsinghua Globa...The President of the California Institute of Technology Professor Jean-Lou Chameau and the Chancellor of the University of California at Santa Barbara Professor Henry Yang both delivered speeches in the Tsinghua Global Vision Lecture Series during their Tsinghua University visit on August 25, 2009. Tsinghua University President Gu Binglin welcomed Professor Chameau and Professor Yang and outlined for them the latest developments at Tsinghua University. The three university presidents expressed the hope that more cooperation in the future could be built between their universities. They discussed collaboration in research and student exchange during their talks.展开更多
基金Supported by the Natural Science Foundation of Chongqing
文摘Along with necessaries applied and the going deeply into the research,that the uni-tary matrix and Hermite matrix are popularized in many kinds,and in this paper uni-versal unitary matrix and universal（oblique）Hermite matrix are studied further,and thismust be useful for matrix theory and applications（like optimization theory,symplecticgeometry and physics etc）.In the paper,C<sup>m×n</sup>shows m×n compound matrix set,C<sub>n</sub><sup>m×n</sup>shows n step compound invertible matrix set,A<sup>*</sup> shows conjugate transpose matrix of A,
文摘This paper describes an analysis of the sound pressure levels at the exterior façade and inside the Hospital de Clínicas of the Federal University of Paraná. Measurements were taken at a total of 45 points, 24 at the exterior facade and 21 points inside the hospital on all the floors of the main building and in the maternity building. These 45 measurements were used to calculate the acoustic map of the hospital, which is located on General Carneiro Street, in the city of Curitiba, state of Paraná, Brazil. A comparison of the measured outdoor sound pressure levels against those established by Curitiba Municipal Law No. 10625 revealed that they all exceeded the daytime limit of 55 dB(A) permitted for areas around hospitals. The indoor sound pressure measurements and the noise levels for acoustic comfort established by the Brazilian technical standard ABNT NBR 10152 were compared, indicating that all the measured points, including those in the neonatal intensive care unit, exceeded the established limit of 35 dB(A) to 45 dB(A).
文摘We present a model of a universe that transitions from an early deceleration phase to the current acceleration phase under the framework of general relativity, in the presence of gravitational coupling G（t） and cosmological terms A（t）. Einstein＇s field equations have been solved by considering the time dependent deceleration parameter （DP） which renders the scale factor e = （thekt）1/m where m, n and k are positive con- stants. The cosmological term （A （t）） is found to be positive and a decreasing function of time, which supports the result obtained from observations of type Ia supernovae. The geometrical and kinematical features of the model are examined in detail.
文摘Yale University President Richard Levin and Vice President Linda Lorimer visited Tsinghua on September 5, 2009. Tsinghua University President Gu Binglin welcomed them and briefed them on the latest developments in education and research at Tsinghua University. They also discussed cooperation on the 10 000 Women Program and Yale＇s Summer Program.
文摘A Memorandum of Understanding was signed between Tsinghua University and the University of Wisconsin at Madison on May 24, 2007, during the visit of Chancellor John D. Wiley, the University of Wisconsin at Madison.
文摘Vice-Chancellor Shirley Pearce awarded Tsinghua University President Gu Binglin a Loughborough University Honorary Doctorate on August 30, 2009 at a graduation ceremony held in Beijing to mark Loughborough＇s centennial. In accepting the doctorate, President Gu congratulated Loughborough on its centennial and expressed the hope that the two universities could build more collaborative partnerships in the coming years.
文摘Premier vows to grant greater independence to universities in a quest for greater innovation On April 15,Chinese Premier Li Keqiang visited China’s two most prestigious universities,Tsinghua University and Peking University.
文摘The President of the California Institute of Technology Professor Jean-Lou Chameau and the Chancellor of the University of California at Santa Barbara Professor Henry Yang both delivered speeches in the Tsinghua Global Vision Lecture Series during their Tsinghua University visit on August 25, 2009. Tsinghua University President Gu Binglin welcomed Professor Chameau and Professor Yang and outlined for them the latest developments at Tsinghua University. The three university presidents expressed the hope that more cooperation in the future could be built between their universities. They discussed collaboration in research and student exchange during their talks.
