Nearly all listed rare earth companies have released their semi-annual report by the end of August, 2016. The weak market imposes heavy strain on these rare earth enterprises. In the international market, Honda Motors...Nearly all listed rare earth companies have released their semi-annual report by the end of August, 2016. The weak market imposes heavy strain on these rare earth enterprises. In the international market, Honda Motors, working with Daido Steel, has made a major breakthrough in hybrid technology in developing the first magnet suitable for use in automotive drive applications that does not make use of heavy rare earth elements.展开更多
This study is essentially an experiment on the control experiment in the August 1975 catastrophe which was the heaviest rainfall in China's Mainland with a maximum 24-h rainfall of 1060.3 mm, and it significantly ...This study is essentially an experiment on the control experiment in the August 1975 catastrophe which was the heaviest rainfall in China's Mainland with a maximum 24-h rainfall of 1060.3 mm, and it significantly demonstrates that the limited area model can still skillfully give reasonable results even only the conventional data are available. For such a heavy rainfall event, a grid length of 90 km is too large while 45 km seems acceptable. Under these two grid sizes, the cumulus parameterization scheme is evidently superior to the explicit scheme since it restricts instabilities such as CISK to limited extent. The high resolution scheme for the boundary treatment does not improve forecasts significantly.The experiments also revealed some interesting phenomena such as the forecast rainfall being too small while affecting synoptic system so deep as compared with observations. Another example is the severe deformation of synoptic systems both in initial conditions and forecast fields in the presence of complicated topography. Besides, the fixed boundary condition utilized in the experiments along with current domain coverage set some limitations to the model performances.展开更多
A STUDY OF DYNAMIC BEHAVIOR AND PHASE SEPARATION OF POLYACRYLIC GELS Ju Zuo , Fa-jun Zhang, Ying-li An, Ai-zhen Niu, Zhi-guang Zhang, Fang-xing Li, Chang-ying Zhu and Bing-lin HeThe State Key Laboratory of Functional ...A STUDY OF DYNAMIC BEHAVIOR AND PHASE SEPARATION OF POLYACRYLIC GELS Ju Zuo , Fa-jun Zhang, Ying-li An, Ai-zhen Niu, Zhi-guang Zhang, Fang-xing Li, Chang-ying Zhu and Bing-lin HeThe State Key Laboratory of Functional Polymeric Materials for Adsorption and Separation, Department of Chemistry, Nankai University, Tianjin 300071Dynamic behavior and phase separation sensitive to temperature of a series of polyacrylic gels was studied by dynamic light scattering. The dynamic behavior of the gels is characterized in terms of the correlation lengthξand diffusion coefficient D. The rules of the influence of cross-linking degree, concentration of polymer and amount of initiator on ξand D were obtained. When cross-linking degree increases, ξdecreases and D展开更多
On August 5, US President Bill Clinton signed into law a bill to punish foreign companies that invest in oil and gas projects in Iran or Libya. The law, which sparked vehement protests from European countries, was des...On August 5, US President Bill Clinton signed into law a bill to punish foreign companies that invest in oil and gas projects in Iran or Libya. The law, which sparked vehement protests from European countries, was designed to discourage investment in Iran and Libya. On August 14, Iran’s Parliament Speaker Ali Akbar Nateq-nouri vowed to take stance against US domination展开更多
The international conference on Kampuchea declded on August 1 in Paris to send a UN fact-finding mission to the country to arrange a peace settlement. The Fatah Movement, the mainstream group in the Palestine Liberati...The international conference on Kampuchea declded on August 1 in Paris to send a UN fact-finding mission to the country to arrange a peace settlement. The Fatah Movement, the mainstream group in the Palestine Liberation Organization (PLO), opened its fifth general congress on August 3 in Tunis. PLO Chairman and President of the State of Palestine Yasser Arafat and Tunisian President Zine E1 Abidine Ben All addressed the opening ceremony.展开更多
On Aug. 8, UN Security Council unanimously adopted a resolution on the applications of the Democratic People’s Republic of Korea and South Korea for full membership of the United Nations. The two at present have obse...On Aug. 8, UN Security Council unanimously adopted a resolution on the applications of the Democratic People’s Republic of Korea and South Korea for full membership of the United Nations. The two at present have observer status in the UN and submitted their separate applications for membership on July 8 and August 5 this year. The DPRK and South Korea are expected to be separately admitted by the UN General Assembly when its annual session opens on September 17.展开更多
This study compares two rainstorms that swept through Henan Province of China in July 2021 and August 1975.The heavy rainfall and related synoptic systems and processes are diagnosed based on hourly ERA5 reanalysis da...This study compares two rainstorms that swept through Henan Province of China in July 2021 and August 1975.The heavy rainfall and related synoptic systems and processes are diagnosed based on hourly ERA5 reanalysis data and precipitation observations from the China Meteorological Administration.It is estimated that most of the daily rainfall in Henan was caused by synoptic-scale precipitation,with the sub-synoptic convective rainfall intermittently dominating some of the hourly total rainfall.The rainband moved at about 2 m s^(-1) during the July 2021 rainstorm,whereas it was almost stationary during the August 1975 rainstorm when the heavy rainfall was concentrated in southern Henan.A double-typhoon circulation pattern with a subtropical high over the Bohai and Yellow Seas was observed during both rainstorms.The heavy rainfall during the July 2021 event was controlled remotely by Typhoons Cempaka and In-Fa,which provided a path for the transport of moisture via the southerly jet associated with Typhoon Cempaka and the easterly(or southeasterly)jet associated with Typhoon In-Fa.The rainstorm in August1975 was caused more directly by Typhoon Nina,which made landfall in Fujian Province and moved toward Henan Province.The rainfall around the inverted trough of the motionless Typhoon Nina produced a cumulative effect.The two rainstorms also differed in their circulation patterns in the upper troposphere.The intrusion of high potential vorticity air over Central China occurred in the July 2021 extreme rainstorm,whereas the South Asian high was enhanced and biased further north during the August 1975 rainstorm.Further analysis showed that the northward and westward transport of moisture took place during the July 2021 rainstorm,whereas the westward transport of moisture from the east of Henan dominated near the inverted trough of Typhoon Nina during the August 1975 rainstorm.展开更多
The surface and atmospheric heating fields over the Qinghai-Xizang Plateau are computed by using the observational data of solar radiation during 1982—1983.The mian results are as follows:The central and northern par...The surface and atmospheric heating fields over the Qinghai-Xizang Plateau are computed by using the observational data of solar radiation during 1982—1983.The mian results are as follows:The central and northern parts of the Plateau act as heat sinks in winter from November to January.Both eastern and south- ern parts of the Plateau are of heat sources.In summer,the main part of the Plateau acts as a strong heat source,and the center of the heating field is in the southeastern Plateau.However the main part of the Plateau acts as a heat sink for the atmospheric heating fields from October to March.The maximum intensity of the atmospheric heat sink over the central Plateau appears in December and January.From April to September,the main part of the Plateau acts as a heat source for the atmospheric heating fields.展开更多
Italian liner Costa Allegra will start its maiden voyage on the northern route this August.China Merchants International Travel,the general agent for Costa Allegra in north China,has made a block booking of the most p...Italian liner Costa Allegra will start its maiden voyage on the northern route this August.China Merchants International Travel,the general agent for Costa Allegra in north China,has made a block booking of the most popu-展开更多
According to National Garment Standardization Technology Committee,three children’s wear standards are going into effect by August 1<sup>st</sup>.Those three standards are as following:Safety Requirementf...According to National Garment Standardization Technology Committee,three children’s wear standards are going into effect by August 1<sup>st</sup>.Those three standards are as following:Safety Requirementfor Rope&Drawstring on Children’s Wear,Safety Requirement forDrawstring on Children’s Upper Outer Garment。展开更多
文摘Nearly all listed rare earth companies have released their semi-annual report by the end of August, 2016. The weak market imposes heavy strain on these rare earth enterprises. In the international market, Honda Motors, working with Daido Steel, has made a major breakthrough in hybrid technology in developing the first magnet suitable for use in automotive drive applications that does not make use of heavy rare earth elements.
基金The project is supported by the National Natural Science Foundation of ChinaState Meteorological Administration Typhoon Research Fund.
文摘This study is essentially an experiment on the control experiment in the August 1975 catastrophe which was the heaviest rainfall in China's Mainland with a maximum 24-h rainfall of 1060.3 mm, and it significantly demonstrates that the limited area model can still skillfully give reasonable results even only the conventional data are available. For such a heavy rainfall event, a grid length of 90 km is too large while 45 km seems acceptable. Under these two grid sizes, the cumulus parameterization scheme is evidently superior to the explicit scheme since it restricts instabilities such as CISK to limited extent. The high resolution scheme for the boundary treatment does not improve forecasts significantly.The experiments also revealed some interesting phenomena such as the forecast rainfall being too small while affecting synoptic system so deep as compared with observations. Another example is the severe deformation of synoptic systems both in initial conditions and forecast fields in the presence of complicated topography. Besides, the fixed boundary condition utilized in the experiments along with current domain coverage set some limitations to the model performances.
文摘A STUDY OF DYNAMIC BEHAVIOR AND PHASE SEPARATION OF POLYACRYLIC GELS Ju Zuo , Fa-jun Zhang, Ying-li An, Ai-zhen Niu, Zhi-guang Zhang, Fang-xing Li, Chang-ying Zhu and Bing-lin HeThe State Key Laboratory of Functional Polymeric Materials for Adsorption and Separation, Department of Chemistry, Nankai University, Tianjin 300071Dynamic behavior and phase separation sensitive to temperature of a series of polyacrylic gels was studied by dynamic light scattering. The dynamic behavior of the gels is characterized in terms of the correlation lengthξand diffusion coefficient D. The rules of the influence of cross-linking degree, concentration of polymer and amount of initiator on ξand D were obtained. When cross-linking degree increases, ξdecreases and D
文摘On August 5, US President Bill Clinton signed into law a bill to punish foreign companies that invest in oil and gas projects in Iran or Libya. The law, which sparked vehement protests from European countries, was designed to discourage investment in Iran and Libya. On August 14, Iran’s Parliament Speaker Ali Akbar Nateq-nouri vowed to take stance against US domination
文摘The international conference on Kampuchea declded on August 1 in Paris to send a UN fact-finding mission to the country to arrange a peace settlement. The Fatah Movement, the mainstream group in the Palestine Liberation Organization (PLO), opened its fifth general congress on August 3 in Tunis. PLO Chairman and President of the State of Palestine Yasser Arafat and Tunisian President Zine E1 Abidine Ben All addressed the opening ceremony.
文摘On Aug. 8, UN Security Council unanimously adopted a resolution on the applications of the Democratic People’s Republic of Korea and South Korea for full membership of the United Nations. The two at present have observer status in the UN and submitted their separate applications for membership on July 8 and August 5 this year. The DPRK and South Korea are expected to be separately admitted by the UN General Assembly when its annual session opens on September 17.
基金Supported by the National Key Research and Development Program of China (2021YFC3000903)National Natural Science Foundation of China (42030605)。
文摘This study compares two rainstorms that swept through Henan Province of China in July 2021 and August 1975.The heavy rainfall and related synoptic systems and processes are diagnosed based on hourly ERA5 reanalysis data and precipitation observations from the China Meteorological Administration.It is estimated that most of the daily rainfall in Henan was caused by synoptic-scale precipitation,with the sub-synoptic convective rainfall intermittently dominating some of the hourly total rainfall.The rainband moved at about 2 m s^(-1) during the July 2021 rainstorm,whereas it was almost stationary during the August 1975 rainstorm when the heavy rainfall was concentrated in southern Henan.A double-typhoon circulation pattern with a subtropical high over the Bohai and Yellow Seas was observed during both rainstorms.The heavy rainfall during the July 2021 event was controlled remotely by Typhoons Cempaka and In-Fa,which provided a path for the transport of moisture via the southerly jet associated with Typhoon Cempaka and the easterly(or southeasterly)jet associated with Typhoon In-Fa.The rainstorm in August1975 was caused more directly by Typhoon Nina,which made landfall in Fujian Province and moved toward Henan Province.The rainfall around the inverted trough of the motionless Typhoon Nina produced a cumulative effect.The two rainstorms also differed in their circulation patterns in the upper troposphere.The intrusion of high potential vorticity air over Central China occurred in the July 2021 extreme rainstorm,whereas the South Asian high was enhanced and biased further north during the August 1975 rainstorm.Further analysis showed that the northward and westward transport of moisture took place during the July 2021 rainstorm,whereas the westward transport of moisture from the east of Henan dominated near the inverted trough of Typhoon Nina during the August 1975 rainstorm.
文摘The surface and atmospheric heating fields over the Qinghai-Xizang Plateau are computed by using the observational data of solar radiation during 1982—1983.The mian results are as follows:The central and northern parts of the Plateau act as heat sinks in winter from November to January.Both eastern and south- ern parts of the Plateau are of heat sources.In summer,the main part of the Plateau acts as a strong heat source,and the center of the heating field is in the southeastern Plateau.However the main part of the Plateau acts as a heat sink for the atmospheric heating fields from October to March.The maximum intensity of the atmospheric heat sink over the central Plateau appears in December and January.From April to September,the main part of the Plateau acts as a heat source for the atmospheric heating fields.
文摘Italian liner Costa Allegra will start its maiden voyage on the northern route this August.China Merchants International Travel,the general agent for Costa Allegra in north China,has made a block booking of the most popu-
文摘According to National Garment Standardization Technology Committee,three children’s wear standards are going into effect by August 1<sup>st</sup>.Those three standards are as following:Safety Requirementfor Rope&Drawstring on Children’s Wear,Safety Requirement forDrawstring on Children’s Upper Outer Garment。
