Digital technology is an instrument and vehicle for digital empowerment and the development of the digital economy.Digital applications in the service sector have spawned new business modes over recent years such as i...Digital technology is an instrument and vehicle for digital empowerment and the development of the digital economy.Digital applications in the service sector have spawned new business modes over recent years such as industrial internet platforms,new retail and online education,which have contributed to China s service sector growth and transition.With the help of digital technology,the service sector has maintained rapid growth,improved in terms of structure,quality and efficiency,increased public welfare,and enhanced indigenous innovation.In light of inadequate and uneven progress of digitalization and insufficient factor support and government incentives,we suggest that the government further advance digitalization development across the board,bolster factor support,and enhance policymaking.展开更多
To predict the attitude of satellite during the whole deployment process and evaluate the locking impact, a numerical flexible model of a certain satellite associated with four flexible honeycomb solar panels was esta...To predict the attitude of satellite during the whole deployment process and evaluate the locking impact, a numerical flexible model of a certain satellite associated with four flexible honeycomb solar panels was established. The flexible solar panel was modeled by the finite element analysis (FEA), and the motion equations were derived by Lagrangian formulation. The locking process was based on the method of Hertzian contact, which enables one to predict the locking impact on the satellite and the subsequent oscillation of solar panels. The results reveal that locking operation has great impact on the attitude of the satellite, and the angular acceleration of satellite reaches 22.03°/s2 at the locking moment; the flexible solar panels model is feasible to predict the accurate response of the satellite during deployment and the oscillation of solar panels; the instantly impulsive force occurred during locking process is about 1.5 kN and the changing time is nearly 0.32 s. It provides an effective approach to present the flexible solar panels' deployment process and evaluate the locking impact.展开更多
As a form of consumption based on the digital content and traits of goods and services,digital consumption is characterized by a strong dependence on the digital technology infrastructure,precise identification of con...As a form of consumption based on the digital content and traits of goods and services,digital consumption is characterized by a strong dependence on the digital technology infrastructure,precise identification of consumer demand,adaptability to new business modes,swift consumer feedback and response,and great market potentials.Under the dual driving forces of technology empowerment and consumption upgrade,China s digital consumption has been growing rapidly,digitalization is empowering traditional sectors of consumption,and the consumption of digital content is expanding.Consumer potential for digital consumption is being unleashed in low-tier cities,and new-generation consumers are gaining influence.With an increasing number of digital consumers,new consumption modes and services have proliferated thanks to the improving digital infrastructure.Growing digital consumption has created an increasing demand-pulling effect that spurs product and service innovation,corporate internal process digitalization,and changes in corporate organization and decision-making.Driven by digital consumption,industrial chain upgrade and restructuring and business mode innovations will improve user experience and firm efficiency,contributing to the quality,efficiency,and dynamism of the manufacturing industry.Amid surging digital consumption,the digital transition of manufacturing is still faced with some problems and challenges.It is important to deepen the user-centric concepts and modes of value creation,create a differentiated service system,optimize digital resource allocation,enhance digital brand management,and scale up R&D and innovation of products and services.展开更多
A three-dimensional baroclinic shelf sea model’s numerical simulation of the South China Sea (SCS) middle and deep layer circulation structure showed that: 1. In the SCS middle and deep layer, a southward boundary cu...A three-dimensional baroclinic shelf sea model’s numerical simulation of the South China Sea (SCS) middle and deep layer circulation structure showed that: 1. In the SCS middle and deep layer, a southward boundary current exists along the east shore of the Indo-China Peninsula all year long. A cyclonic eddy (gyre) is formed by the current in the above sea areas except in the middle layer in spring, when an anticyclonic eddy exists on the eastern side of the current. In the deep layer, a large-scale anticyclonic eddy often exists in the sea areas between the Zhongsha Islands and west shore of southern Luzon Island. 2. In the middle layer in summer and autumn, and in the deep layer in autumn and winter, there is an anticyclonic eddy (gyre) in the northeastern SCS, while in the middle layer in winter and spring, and in the deep layer in spring and summer, there is a cyclonic one. 3. In the middle layer, there is a weak northeastward current in the Nansha Trough in spring and summer, while in autumn and winter it evolves into an anticyclonic eddy (gyre), which then spreads westward to the whole western Nansha Islands sea areas.展开更多
In China, many scenic and tourism areas are suffering from the urbanization that results from physical development of tourism projects, leading to the removal of the vegetative cover, the creation of areas impermeable...In China, many scenic and tourism areas are suffering from the urbanization that results from physical development of tourism projects, leading to the removal of the vegetative cover, the creation of areas impermeable to water, in-stream modifications, and other problems. In this paper, the risk of soil erosion and its ecological risks in the West Lake Scenic Spots （WLSS） area were quantitatively evaluated by integrating the revised universal soil loss equation （RUSLE） with a digital elevation model （DEM） and geographical information system （GIS） software. The standard RUSLE factors were modified to account for local climatic and topographic characteristics reflected in the DEM maps, and for the soil types and vegetation cover types. An interface was created between the Areinfo software and RUSLE so that the level of soil erosion and its ecological risk in the WLSS area could be mapped immediately once the model factors were defined for the area. The results from an analysis using the Areinfo-RUSLE interface showed that the risk value in 93 % of the expanding western part of the WLSS area was moderate or more severe and the soil erosion risk in this area was thus large compared with that in the rest of the area. This paper mainly aimed to increase the awareness of the soil erosion risk in urbanizing areas and suggest that the local governments should consider the probable ecological risk resulting from soil erosion when enlarging and developing tourism areas.展开更多
This research studies the reliability of an activated carbon permeable reactive barrier in removing cadmium from a contaminated shallow aquifer.Laboratory tests have been performed to characterize the equilibrium and ...This research studies the reliability of an activated carbon permeable reactive barrier in removing cadmium from a contaminated shallow aquifer.Laboratory tests have been performed to characterize the equilibrium and kinetic adsorption properties of the activated carbon in cadmium-containing aqueous solutions.A 2D numerical model has been used to describe pollutant transport within a groundwater and the pollutant adsorption on the permeable reactive barrier(PRB).In particular,it has been considered the case of a PAB used to protect a lake or downstream from Cd(II)contaminated groundwater.Numerical results show that the PAB can achieve a long-term efficiency by preventing lake or downstream pollution for several months.展开更多
Fansubbing, short for fan subtitling, is a new form of subtitling done by fans for fans voluntarily and collaboratively to distribute free fansubbed programs. Fansub is a virtual community where fansubbers communicate...Fansubbing, short for fan subtitling, is a new form of subtitling done by fans for fans voluntarily and collaboratively to distribute free fansubbed programs. Fansub is a virtual community where fansubbers communicate only through chatting rooms, forums, MSN or QQ. With the popularity of audiovisual programs on the Intemet, fansubs become well-known for their voluntary fansubbed programs and interesting fansubbing. However, little is known about the operating of this virtual community and the strategies of fansubbing humor. Thus, this dissertation explores the modus operandi of fansubs in China's Mainland, and discusses fansubbing strategies compared with that of mainstream subtitling, with particular emphasis on fansubbed humor in American TV series which are popular with Chinese audiences. Different from the mainstream subtitling which often domesticates the otherness in the foreign culture, fansubbing tends to rewrite and manipulate the translation in a more idiosyncratic and creative way. Fansubbers recreate the humor in an ＂abusive＂ way to explain the cultural difficulties. And their ＂abusive＂ manipulation of translation, especially in humor translation, which helps the audience to overcome the culture barriers, experience the cultural ＂otherness＂ while entertain the humor, has great potential to be adopted by other translators in dealing with translating cultural difficulties.展开更多
An earthquake measuring 5.1 on the Richter scale struck Wen'an county,Hebei Province on July 4,2006. No casualties have been reported,with only slight damage. The disaster level of this event is the slightest on t...An earthquake measuring 5.1 on the Richter scale struck Wen'an county,Hebei Province on July 4,2006. No casualties have been reported,with only slight damage. The disaster level of this event is the slightest on the M4.9～5.1 events record tally since the CCDSN (China Center of Digital Seismic Network) was built in 1999. The epicenter intensity of this earthquake was low,while in areas like Beijing,which is 100km far away,abnormal high intensity zones appeared. This article discusses the reasons behind this abnormal phenomenon,with the diagrams of intensity isolines drawn by the intense seismic stations and networks in the capital circle area as references,as well as the seismogenic mechanism in the source,the seismic histories,the geological structures and the ray pathways of seismic waves in areas within 150km around the epicenter. It was concluded that the special dynamic and geological situations were the main causes for the lower intensity degree and slight damage in the epicenter area,but higher intensity in the surrounding areas.展开更多
Five mobile digital seismic stations were set up by the Earthquake Administration of Yunnan Province near the epicenter of the main shock after the Ning＇er M6. 4 earthquake on June 3, 2007. In this paper, the aftersh...Five mobile digital seismic stations were set up by the Earthquake Administration of Yunnan Province near the epicenter of the main shock after the Ning＇er M6. 4 earthquake on June 3, 2007. In this paper, the aftershock sequence of the Ning＇er M6. 4 earthquake is relocated by using the double difference earthquake location method. The data is from the 5 mobile digital seismic stations and the permanent Simao seismic station. The results show that the length of the aftershock sequence is 40kin and the width is 30km, concentrated obviously at the lateral displacement area between the Pu＇er fault and the NNE-trending faults, with the majority occurring on the Pu＇er fault around the main shock. The depths of aftershocks are from 2kin to 12km, and the predominant distribution is in the depth of 8 ~ 10km. The mean depth is 7. 9kin. The seismic fault dips to the northwest revealed from the profile parallel to this aftershock sequence, which is identical to the dip of the secondary fault of the NE-trending Menglian-Mojiang fault in the earthquake area. There are more earthquakes concentrated in the northwest segment than in the southeast segment, which is perhaps related to the underground medium and faults. The depth profile of the earthquake sequence shows that the relocated earthquakes are mainly located near the Pu＇er fault and the seismic faults dip to the southwest, consistent with the dip of the west branch of the Pu＇er fault. In all, the fault strike revealed by earthquake relocations matches well with the strike in the focal mechanism solutions. The main shock is in the top of the aftershock sequence and the aftershocks are symmetrically distributed, showing that faulting was complete in both the NE and SW directions.展开更多
文摘Digital technology is an instrument and vehicle for digital empowerment and the development of the digital economy.Digital applications in the service sector have spawned new business modes over recent years such as industrial internet platforms,new retail and online education,which have contributed to China s service sector growth and transition.With the help of digital technology,the service sector has maintained rapid growth,improved in terms of structure,quality and efficiency,increased public welfare,and enhanced indigenous innovation.In light of inadequate and uneven progress of digitalization and insufficient factor support and government incentives,we suggest that the government further advance digitalization development across the board,bolster factor support,and enhance policymaking.
文摘To predict the attitude of satellite during the whole deployment process and evaluate the locking impact, a numerical flexible model of a certain satellite associated with four flexible honeycomb solar panels was established. The flexible solar panel was modeled by the finite element analysis (FEA), and the motion equations were derived by Lagrangian formulation. The locking process was based on the method of Hertzian contact, which enables one to predict the locking impact on the satellite and the subsequent oscillation of solar panels. The results reveal that locking operation has great impact on the attitude of the satellite, and the angular acceleration of satellite reaches 22.03°/s2 at the locking moment; the flexible solar panels model is feasible to predict the accurate response of the satellite during deployment and the oscillation of solar panels; the instantly impulsive force occurred during locking process is about 1.5 kN and the changing time is nearly 0.32 s. It provides an effective approach to present the flexible solar panels' deployment process and evaluate the locking impact.
文摘As a form of consumption based on the digital content and traits of goods and services,digital consumption is characterized by a strong dependence on the digital technology infrastructure,precise identification of consumer demand,adaptability to new business modes,swift consumer feedback and response,and great market potentials.Under the dual driving forces of technology empowerment and consumption upgrade,China s digital consumption has been growing rapidly,digitalization is empowering traditional sectors of consumption,and the consumption of digital content is expanding.Consumer potential for digital consumption is being unleashed in low-tier cities,and new-generation consumers are gaining influence.With an increasing number of digital consumers,new consumption modes and services have proliferated thanks to the improving digital infrastructure.Growing digital consumption has created an increasing demand-pulling effect that spurs product and service innovation,corporate internal process digitalization,and changes in corporate organization and decision-making.Driven by digital consumption,industrial chain upgrade and restructuring and business mode innovations will improve user experience and firm efficiency,contributing to the quality,efficiency,and dynamism of the manufacturing industry.Amid surging digital consumption,the digital transition of manufacturing is still faced with some problems and challenges.It is important to deepen the user-centric concepts and modes of value creation,create a differentiated service system,optimize digital resource allocation,enhance digital brand management,and scale up R&D and innovation of products and services.
文摘A three-dimensional baroclinic shelf sea model’s numerical simulation of the South China Sea (SCS) middle and deep layer circulation structure showed that: 1. In the SCS middle and deep layer, a southward boundary current exists along the east shore of the Indo-China Peninsula all year long. A cyclonic eddy (gyre) is formed by the current in the above sea areas except in the middle layer in spring, when an anticyclonic eddy exists on the eastern side of the current. In the deep layer, a large-scale anticyclonic eddy often exists in the sea areas between the Zhongsha Islands and west shore of southern Luzon Island. 2. In the middle layer in summer and autumn, and in the deep layer in autumn and winter, there is an anticyclonic eddy (gyre) in the northeastern SCS, while in the middle layer in winter and spring, and in the deep layer in spring and summer, there is a cyclonic one. 3. In the middle layer, there is a weak northeastward current in the Nansha Trough in spring and summer, while in autumn and winter it evolves into an anticyclonic eddy (gyre), which then spreads westward to the whole western Nansha Islands sea areas.
基金financial support from the National Natural Science Foundation of China(No.40201021)the Zhejiang Natural Science Foundation of China(M403040).
文摘In China, many scenic and tourism areas are suffering from the urbanization that results from physical development of tourism projects, leading to the removal of the vegetative cover, the creation of areas impermeable to water, in-stream modifications, and other problems. In this paper, the risk of soil erosion and its ecological risks in the West Lake Scenic Spots （WLSS） area were quantitatively evaluated by integrating the revised universal soil loss equation （RUSLE） with a digital elevation model （DEM） and geographical information system （GIS） software. The standard RUSLE factors were modified to account for local climatic and topographic characteristics reflected in the DEM maps, and for the soil types and vegetation cover types. An interface was created between the Areinfo software and RUSLE so that the level of soil erosion and its ecological risk in the WLSS area could be mapped immediately once the model factors were defined for the area. The results from an analysis using the Areinfo-RUSLE interface showed that the risk value in 93 % of the expanding western part of the WLSS area was moderate or more severe and the soil erosion risk in this area was thus large compared with that in the rest of the area. This paper mainly aimed to increase the awareness of the soil erosion risk in urbanizing areas and suggest that the local governments should consider the probable ecological risk resulting from soil erosion when enlarging and developing tourism areas.
基金Supported by Project of National Key Programof Technology R&D the11th Five-year Plan(Nos.2007BAB28B04-03,2006BAB04A09-02)China Geological Survey Program(No.2003104001)+2 种基金Jilin Province Key Project of Science and Technology(Nos.20020401,20080543)Jilin Province KeyProject of Water Resources(Nos.YN20060328,HDS20060629)NSFC Project(No.40672157)
文摘This research studies the reliability of an activated carbon permeable reactive barrier in removing cadmium from a contaminated shallow aquifer.Laboratory tests have been performed to characterize the equilibrium and kinetic adsorption properties of the activated carbon in cadmium-containing aqueous solutions.A 2D numerical model has been used to describe pollutant transport within a groundwater and the pollutant adsorption on the permeable reactive barrier(PRB).In particular,it has been considered the case of a PAB used to protect a lake or downstream from Cd(II)contaminated groundwater.Numerical results show that the PAB can achieve a long-term efficiency by preventing lake or downstream pollution for several months.
文摘Fansubbing, short for fan subtitling, is a new form of subtitling done by fans for fans voluntarily and collaboratively to distribute free fansubbed programs. Fansub is a virtual community where fansubbers communicate only through chatting rooms, forums, MSN or QQ. With the popularity of audiovisual programs on the Intemet, fansubs become well-known for their voluntary fansubbed programs and interesting fansubbing. However, little is known about the operating of this virtual community and the strategies of fansubbing humor. Thus, this dissertation explores the modus operandi of fansubs in China's Mainland, and discusses fansubbing strategies compared with that of mainstream subtitling, with particular emphasis on fansubbed humor in American TV series which are popular with Chinese audiences. Different from the mainstream subtitling which often domesticates the otherness in the foreign culture, fansubbing tends to rewrite and manipulate the translation in a more idiosyncratic and creative way. Fansubbers recreate the humor in an ＂abusive＂ way to explain the cultural difficulties. And their ＂abusive＂ manipulation of translation, especially in humor translation, which helps the audience to overcome the culture barriers, experience the cultural ＂otherness＂ while entertain the humor, has great potential to be adopted by other translators in dealing with translating cultural difficulties.
基金funded by the project "Demonstration of typical changes of vulne rability of disasters in urban-rural fringe:a case study of seismic disaster in the Beijing-Tianjin-Tangshan region" of National Natural Science Foundation (Grant No.40771011)
文摘An earthquake measuring 5.1 on the Richter scale struck Wen'an county,Hebei Province on July 4,2006. No casualties have been reported,with only slight damage. The disaster level of this event is the slightest on the M4.9～5.1 events record tally since the CCDSN (China Center of Digital Seismic Network) was built in 1999. The epicenter intensity of this earthquake was low,while in areas like Beijing,which is 100km far away,abnormal high intensity zones appeared. This article discusses the reasons behind this abnormal phenomenon,with the diagrams of intensity isolines drawn by the intense seismic stations and networks in the capital circle area as references,as well as the seismogenic mechanism in the source,the seismic histories,the geological structures and the ray pathways of seismic waves in areas within 150km around the epicenter. It was concluded that the special dynamic and geological situations were the main causes for the lower intensity degree and slight damage in the epicenter area,but higher intensity in the surrounding areas.
基金sponsored by the Joint Earthquake Science Foundation,China (200804)
文摘Five mobile digital seismic stations were set up by the Earthquake Administration of Yunnan Province near the epicenter of the main shock after the Ning＇er M6. 4 earthquake on June 3, 2007. In this paper, the aftershock sequence of the Ning＇er M6. 4 earthquake is relocated by using the double difference earthquake location method. The data is from the 5 mobile digital seismic stations and the permanent Simao seismic station. The results show that the length of the aftershock sequence is 40kin and the width is 30km, concentrated obviously at the lateral displacement area between the Pu＇er fault and the NNE-trending faults, with the majority occurring on the Pu＇er fault around the main shock. The depths of aftershocks are from 2kin to 12km, and the predominant distribution is in the depth of 8 ~ 10km. The mean depth is 7. 9kin. The seismic fault dips to the northwest revealed from the profile parallel to this aftershock sequence, which is identical to the dip of the secondary fault of the NE-trending Menglian-Mojiang fault in the earthquake area. There are more earthquakes concentrated in the northwest segment than in the southeast segment, which is perhaps related to the underground medium and faults. The depth profile of the earthquake sequence shows that the relocated earthquakes are mainly located near the Pu＇er fault and the seismic faults dip to the southwest, consistent with the dip of the west branch of the Pu＇er fault. In all, the fault strike revealed by earthquake relocations matches well with the strike in the focal mechanism solutions. The main shock is in the top of the aftershock sequence and the aftershocks are symmetrically distributed, showing that faulting was complete in both the NE and SW directions.
