The influence of urban intensity on fog evolution in the Beijing-Tianjin-Hebei (BTH) region (China) is investigated numerically with the the Weather Research and Forecasting (WRF) model coupled with the urban canopy p...The influence of urban intensity on fog evolution in the Beijing-Tianjin-Hebei (BTH) region (China) is investigated numerically with the the Weather Research and Forecasting (WRF) model coupled with the urban canopy parameterization-building energy model (UCP- BEM) urban physics scheme. The experiments were designed with a focus on the influence of different urban intensities, which are represented by a different fractional coverage of natural land, buildings, and energy consumption inside buildings in an urban environment. The results of this study indicate that urban areas notably influence fog evolution when natural land is reduced to a small fraction (e.g., less than 10%). Developed land changes fog evolution through urban effects. Higher urban intensity (HUI) generally results in warmer temperatures and lower wind speeds throughout the day, while inhibiting morning specific humidity loss and afternoon specific humidity gain because of the HUI effect on surface heat flux, surface roughness, and surface moisture flux. HUI leads to later and weaker liquid water content formation, with a higher liquid water content base, primarily due to its effect on near surface temperatures. This finding implies that HUI may inhibit the conditions for fog formation. In addition, urban areas with equal natural and developed land coverage seem to greatly enhance the upward surface moisture flux, which is attributed to the combination of a relatively large potential evaporation on developed land and an ample moisture supply from natural land. As a result, the specific humidity increases in the afternoon.展开更多
The DID （Department of Irrigation and Drainage） in Malaysia has produced a manual on urban stromwater management specifically for the Malaysia region with usage of infiltration method towards controlling the quantit...The DID （Department of Irrigation and Drainage） in Malaysia has produced a manual on urban stromwater management specifically for the Malaysia region with usage of infiltration method towards controlling the quantity and quality of surface runoff. With this method, the volume of surface runoff can be reduced and flood problems in major cities can be eliminated. The study areas of Sungai Kedah ungauged catchment are located at the northern region of Malaysia. The Kota Setar sub-catchment is located at the downstream of Sungai Kedah with the newly completed development of control barrage at the upper Kota Setar. This paper will describe the analyses of the infiltration curves at Kota Setar. The resulting infiltration maps have developed based on the infiltration capacities.展开更多
The Manchurian plague from the winter of 1910 to the spring of 1911 was the worst epidemic in modern China, and the ensuing International Plague Conference marked the first international medical conference hosted by C...The Manchurian plague from the winter of 1910 to the spring of 1911 was the worst epidemic in modern China, and the ensuing International Plague Conference marked the first international medical conference hosted by China. There was a close connection between these two historical events, and Wu Lien-Teh 伍连德, later extolled as the "pioneer of modern medicine in China," played a significant role in each. Despite a multitude of treatises discussing the Manchurian plague and the International Plague Conference, as well as biographical articles on the undertakings of Wu, there remains a gap in the research of Wu’s relation with these two historical events, which is worth further exploration. In addition to the key role and significance of Wu in the entire epidemic fight, the first section of this article analyzes whether the common portrayal of Wu as an obscure, local doctor transformed overnight into a Manchurian plague fighter is accurate. Through an analysis of the conference minutes, the second section focuses on how Wu used "conference diplomacy" to mitigate the neighboring powers’ attempts to achieve their political goals by leveraging this international conference.展开更多
On June 2, Volkswagen Corp of Germany settled its Chinese central laboratory in Sinopec Beijing Research Institute of Chemical Industry （BRICI）. This is the top-level lab of Volkswagen in Asia- Pacific region and it...On June 2, Volkswagen Corp of Germany settled its Chinese central laboratory in Sinopec Beijing Research Institute of Chemical Industry （BRICI）. This is the top-level lab of Volkswagen in Asia- Pacific region and it marks another close cooperation between Volkswagen Corp of Germany and Sinopec Corp.展开更多
On June 26,co-sponsored by CCPIT/CCO- IC Mediation Center and CEDR（The Center for Effective Dispute Resolution）,the International Commercial Mediation Seminar was held in Beijing.Before the seminar,CCPIT Vice Chairm...On June 26,co-sponsored by CCPIT/CCO- IC Mediation Center and CEDR（The Center for Effective Dispute Resolution）,the International Commercial Mediation Seminar was held in Beijing.Before the seminar,CCPIT Vice Chairman and Director of CCOIC Mediation Center,展开更多
This study was carried out to investigate the Cochlodinium polykrikoides fluctuations in the north of Oman Sea during pre- and post-monsoon season in 2008. The study area was divided into 10 transects （TI-T10） from ...This study was carried out to investigate the Cochlodinium polykrikoides fluctuations in the north of Oman Sea during pre- and post-monsoon season in 2008. The study area was divided into 10 transects （TI-T10） from the Strait of Hormuz （T1） to Gwadar （TI0） which cover the whole of the Iranian waters in the Oman Sea. The results showed that at first, Cochlodinium polykrikoides appeared in the northeast part （T10） in the pre-monsoon season, then it spread to other parts of the study area. Cochlodinium polykrikoides was observed in greater abundance in the Strait of Hormuz in the post-monsoon season. The results demonstrated that T10 （transect 10） had the highest abundance in the pre-monsoon season. The Kruskal-Wallis test showed a significant difference among transects （P 〈 0.05）. The present study showed that the abundance of Cochlodinium polykrikoides increased from coastal to offshore waters in the pre-monsoon season; however, in the post-monsoon season, there was a higher abundance in coastal waters compared to the offshore zone. It could be seen that the abundance of Cochlodinium polykrikoides started in offshore waters, then increased in coastal waters. During the pre-monsoon season, water discoloration was not observed, however, the water changed to brown from T 1 to T4 （northwest） and blooms of Cochlodinium polykrikoides was recorded in the post-monsoon season.展开更多
The GF-3 satellite was successfully launched at 06：55 Beijing time on August10 using a LM-4C launch vehicle from the Taiyuan Satellite Launch Center.The launch was the 233rd flight of a LM family launch vehicle and t...The GF-3 satellite was successfully launched at 06：55 Beijing time on August10 using a LM-4C launch vehicle from the Taiyuan Satellite Launch Center.The launch was the 233rd flight of a LM family launch vehicle and the carrier rocket LM-4C was developed by the Shanghai Academy of Spaceflight Technology.展开更多
As the future network is developing towards broadband,convergence,virtualization and intelligence,dramatic changes will happen in the network applications and its industrial chain.The rapid development of mobile Inter...As the future network is developing towards broadband,convergence,virtualization and intelligence,dramatic changes will happen in the network applications and its industrial chain.The rapid development of mobile Internet and Io T will bring about huge market requirements,while key 5G mobile communication technologies and the cloud network are ready for new breakthroughs.The integration of the 5G and cloud network will bring revolutionary changes to the future network.展开更多
基金supported by the National Science and Technology Pillar Program of China (Grant No.2008BAC37B01)the National Natural Science Foundation of China (Grant Nos. 40930950 and 40921160379)
文摘The influence of urban intensity on fog evolution in the Beijing-Tianjin-Hebei (BTH) region (China) is investigated numerically with the the Weather Research and Forecasting (WRF) model coupled with the urban canopy parameterization-building energy model (UCP- BEM) urban physics scheme. The experiments were designed with a focus on the influence of different urban intensities, which are represented by a different fractional coverage of natural land, buildings, and energy consumption inside buildings in an urban environment. The results of this study indicate that urban areas notably influence fog evolution when natural land is reduced to a small fraction (e.g., less than 10%). Developed land changes fog evolution through urban effects. Higher urban intensity (HUI) generally results in warmer temperatures and lower wind speeds throughout the day, while inhibiting morning specific humidity loss and afternoon specific humidity gain because of the HUI effect on surface heat flux, surface roughness, and surface moisture flux. HUI leads to later and weaker liquid water content formation, with a higher liquid water content base, primarily due to its effect on near surface temperatures. This finding implies that HUI may inhibit the conditions for fog formation. In addition, urban areas with equal natural and developed land coverage seem to greatly enhance the upward surface moisture flux, which is attributed to the combination of a relatively large potential evaporation on developed land and an ample moisture supply from natural land. As a result, the specific humidity increases in the afternoon.
文摘The DID （Department of Irrigation and Drainage） in Malaysia has produced a manual on urban stromwater management specifically for the Malaysia region with usage of infiltration method towards controlling the quantity and quality of surface runoff. With this method, the volume of surface runoff can be reduced and flood problems in major cities can be eliminated. The study areas of Sungai Kedah ungauged catchment are located at the northern region of Malaysia. The Kota Setar sub-catchment is located at the downstream of Sungai Kedah with the newly completed development of control barrage at the upper Kota Setar. This paper will describe the analyses of the infiltration curves at Kota Setar. The resulting infiltration maps have developed based on the infiltration capacities.
文摘The Manchurian plague from the winter of 1910 to the spring of 1911 was the worst epidemic in modern China, and the ensuing International Plague Conference marked the first international medical conference hosted by China. There was a close connection between these two historical events, and Wu Lien-Teh 伍连德, later extolled as the "pioneer of modern medicine in China," played a significant role in each. Despite a multitude of treatises discussing the Manchurian plague and the International Plague Conference, as well as biographical articles on the undertakings of Wu, there remains a gap in the research of Wu’s relation with these two historical events, which is worth further exploration. In addition to the key role and significance of Wu in the entire epidemic fight, the first section of this article analyzes whether the common portrayal of Wu as an obscure, local doctor transformed overnight into a Manchurian plague fighter is accurate. Through an analysis of the conference minutes, the second section focuses on how Wu used "conference diplomacy" to mitigate the neighboring powers’ attempts to achieve their political goals by leveraging this international conference.
文摘On June 2, Volkswagen Corp of Germany settled its Chinese central laboratory in Sinopec Beijing Research Institute of Chemical Industry （BRICI）. This is the top-level lab of Volkswagen in Asia- Pacific region and it marks another close cooperation between Volkswagen Corp of Germany and Sinopec Corp.
文摘On June 26,co-sponsored by CCPIT/CCO- IC Mediation Center and CEDR（The Center for Effective Dispute Resolution）,the International Commercial Mediation Seminar was held in Beijing.Before the seminar,CCPIT Vice Chairman and Director of CCOIC Mediation Center,
文摘This study was carried out to investigate the Cochlodinium polykrikoides fluctuations in the north of Oman Sea during pre- and post-monsoon season in 2008. The study area was divided into 10 transects （TI-T10） from the Strait of Hormuz （T1） to Gwadar （TI0） which cover the whole of the Iranian waters in the Oman Sea. The results showed that at first, Cochlodinium polykrikoides appeared in the northeast part （T10） in the pre-monsoon season, then it spread to other parts of the study area. Cochlodinium polykrikoides was observed in greater abundance in the Strait of Hormuz in the post-monsoon season. The results demonstrated that T10 （transect 10） had the highest abundance in the pre-monsoon season. The Kruskal-Wallis test showed a significant difference among transects （P 〈 0.05）. The present study showed that the abundance of Cochlodinium polykrikoides increased from coastal to offshore waters in the pre-monsoon season; however, in the post-monsoon season, there was a higher abundance in coastal waters compared to the offshore zone. It could be seen that the abundance of Cochlodinium polykrikoides started in offshore waters, then increased in coastal waters. During the pre-monsoon season, water discoloration was not observed, however, the water changed to brown from T 1 to T4 （northwest） and blooms of Cochlodinium polykrikoides was recorded in the post-monsoon season.
文摘The GF-3 satellite was successfully launched at 06：55 Beijing time on August10 using a LM-4C launch vehicle from the Taiyuan Satellite Launch Center.The launch was the 233rd flight of a LM family launch vehicle and the carrier rocket LM-4C was developed by the Shanghai Academy of Spaceflight Technology.
文摘As the future network is developing towards broadband,convergence,virtualization and intelligence,dramatic changes will happen in the network applications and its industrial chain.The rapid development of mobile Internet and Io T will bring about huge market requirements,while key 5G mobile communication technologies and the cloud network are ready for new breakthroughs.The integration of the 5G and cloud network will bring revolutionary changes to the future network.
