The codling moth, Cydia pomonella L. （Lepidoptera： Tortricidae）, is a destructive insect pest in the fruit production. The emergences of this notorious pest frequently cause the huge economic loss of apple orchards...The codling moth, Cydia pomonella L. （Lepidoptera： Tortricidae）, is a destructive insect pest in the fruit production. The emergences of this notorious pest frequently cause the huge economic loss of apple orchards. It can also attacks pears, walnuts and other tree fruits. The codling moth is an important invasive species in China, which first appeared in Kuerle, Xijiang in 1953 and rapidly expanded in the whole area, in 1987 the codling moth spread to Dunhuang, Gansu. Recently, researchers from the Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Nanjing Agricultural University and so on initiated a genome-sequencing project of the codling moth. The genome size of the codling moth is 650 Mb, as estimated by flow cytometry and survey sequencing. Since the heterozygousity is a potential obstacle in sequencing the insect genome, the research consortium carefully measured the heterozygousity of the codling moth by SNP analysis and 17-mer estimation, showing that the heterozygousity of the codling moth is around 0.3-0.6%. The whole genome shotgun strategy is adopted and a sequencing plan has been made and officially started. The availability of the codling moth genome should be of great value to uncover the molecular invasion mechanism, high adaptive ability to the stress and to develop efficient control strategies of this pest worldwide and in China.展开更多
On November 23, the project to annually produce 3 million automotive transmission units, invested by Zhejiang Wanliyang Transmission Co., Ltd., started construction in Fuyuan county, Qujing city, Yunnan province. The ...On November 23, the project to annually produce 3 million automotive transmission units, invested by Zhejiang Wanliyang Transmission Co., Ltd., started construction in Fuyuan county, Qujing city, Yunnan province. The project, with an investment of CNY 2 billion and an area of 300 mu （1 mu is about 667 m^2）, will be constructed a production base of automotive transmission.展开更多
The ceremony for issuing the instrument of ratification on first fuel loading to Unit. 1 of Tianwan Nuclear Power Plant was hold on October 23 this year. The State Environmental Protection Administration issued this i...The ceremony for issuing the instrument of ratification on first fuel loading to Unit. 1 of Tianwan Nuclear Power Plant was hold on October 23 this year. The State Environmental Protection Administration issued this instrument at the ceremony. On the same day, ninety-five groups of PWR展开更多
Xiangfan Coal-fired Power Plant, a key energy construction project matched with Three Gorges Project, approved by the State Council. formally started to build in the suburb of Xiangfan City, Hubei Province on November...Xiangfan Coal-fired Power Plant, a key energy construction project matched with Three Gorges Project, approved by the State Council. formally started to build in the suburb of Xiangfan City, Hubei Province on November 29, 1996.展开更多
The ground-breaking ceremony for the construction of an aquatic life museum was held on April 18 at the CAS Institute of Hydrobiology (IHB) in the city of Wuhan, capital of central China's Hubei Province. High-ran...The ground-breaking ceremony for the construction of an aquatic life museum was held on April 18 at the CAS Institute of Hydrobiology (IHB) in the city of Wuhan, capital of central China's Hubei Province. High-ranking officials including CAS Vice-President Chen Yiyu and Vice-Governor of Hubei Province took part in the ceremony. With its abundant aquatic specimens,the forthcoming museum is believed to be the largest of its kind in Asia.展开更多
Bast fiber, which has not attracted that much attention before, is going to step up to be more recognized, so there comes the bast fiber fashion week, as an appetizer for the bast fiber promotion year.
With the support of the Ministry of Science and Technology (MOST), scientists from the Chinese Academy of Atomic Energy and the Chinese Academy of Sciences (CAS) formally kicked off a new project to look into clean nu...With the support of the Ministry of Science and Technology (MOST), scientists from the Chinese Academy of Atomic Energy and the Chinese Academy of Sciences (CAS) formally kicked off a new project to look into clean nuclear energy on September 27th in Beijing. The study, known as the accelerator-driven system of clean展开更多
The Chinese medical rehabilitation industry is facing a golden period of development.At the recently-held China International Medical Equipment Fair(CMEF)in Beijing,more than 1,000 exhibitors from S.Korea,the U.S.,the...The Chinese medical rehabilitation industry is facing a golden period of development.At the recently-held China International Medical Equipment Fair(CMEF)in Beijing,more than 1,000 exhibitors from S.Korea,the U.S.,the U.K.France and other countries displayed more than 10,000 smart medical rehabilitation products,bringing the audience an interactive,medical and technological experience.The warm on-site atmosphere and technologically-inspiring products show that China’s medical rehabilitation industry is starting to fully mature.展开更多
When the vehicle is on a split-μramp and is restricted by the differential's torque-equalizing characteristic,a sig-nificant functional conflict may occur between the driving force limitation requirement of the a...When the vehicle is on a split-μramp and is restricted by the differential's torque-equalizing characteristic,a sig-nificant functional conflict may occur between the driving force limitation requirement of the acceleration slip regulation(ASR)control strategy for low-adhesion side wheels and the driving force enhancement demand of the entire vehicle during hill starting.Aiming at this problem,this paper proposes an ASR control strategy for the start-up of the electric vehicle on the split-μramp based on the combined control architecture of the service brake system and the parking brake system.First,the relationship between the driving force,braking force,and road adhesion at the slip moment is analyzed,and the ground adhesion estimation algorithm based on the dynamic equation of the driving wheel slip moment is proposed.Second,a service braking torque control model is constructed,and an ASR controller method based on the super-twisting sliding mode control(STSMC)algorithm is proposed to study the hill start assist(HSA)control strategy of electric vehicles on split-μroads.Finally,the proposed control strategy is si-mulated in this paper.The simulation results show that the proposed strategy can accurately estimate the ground adhesion of the driving wheel on the low-adhesion side effectively preventing the vehicle from slipping back,and improving the dynamic performance of the vehicle under harsh conditions.展开更多
The accurate establishment of a ferrite transformation start temperature model is crucial to design a reasonable controlled rolling process and ensure uniform microstructure in aluminum bearing dual-phase steel.The me...The accurate establishment of a ferrite transformation start temperature model is crucial to design a reasonable controlled rolling process and ensure uniform microstructure in aluminum bearing dual-phase steel.The measurements of the expansion-temperature curves of aluminum bearing dual-phase steel under continuous cooling and isothermal conditions are presented,utilizing a dynamic transformation dilatometer experiment.Based on these expansion-temperature curves,the start temperature and incubation time of ferrite transformation were determined,elucidating the influence of process parameters on both the incubation time and the start temperature of ferrite transformation.By integrating metallurgical principles with measured incubation time of ferrite transformation,and considering the effects of temperature and strain,a fitting model for the variation in volume free energy during ferrite nucleation was derived.Building upon this foundation,a high-precision incubation time of ferrite transformation mathematical model for the experimental steel was established.To more accurately calculate the start temperature of ferrite transformation under continuous cooling conditions,the Scheil’s additivity rule was modified to account for the effects of deformation and cooling rate.The results indicate that the modification coefficient decreases with increasing the cooling rate and strain,thereby significantly improving the accuracy of calculating the starting temperature of ferrite transformation using the modified additivity rule.展开更多
In the first quarter of 2019, despite complex and daunting conditions both at home and abroad, China continued to uphold the core principle of progress amidst stability. We remained committed to the new development ph...In the first quarter of 2019, despite complex and daunting conditions both at home and abroad, China continued to uphold the core principle of progress amidst stability. We remained committed to the new development philosophy, resolutely promoted high-quality growth by focusing on furthering structural reform on the supply side, and continued to fight the three critical battles against potential risks, poverty, and pollution. Thanks to these efforts, ChinaJs economic performance has maintained overall stability and exceeded expectations.展开更多
聚焦PEP新教材Start to read板块教学,针对传统阅读启蒙课存在的思维培养不足、教学活动单一等问题,提出“问题·活动·评价”三位一体的教学新范式。通过构建层级化问题体系引导思维进阶,设计梯度式活动促进语篇理解,实施全程...聚焦PEP新教材Start to read板块教学,针对传统阅读启蒙课存在的思维培养不足、教学活动单一等问题,提出“问题·活动·评价”三位一体的教学新范式。通过构建层级化问题体系引导思维进阶,设计梯度式活动促进语篇理解,实施全程化评价保障学习效果。研究表明,该范式能有效提升学生阅读兴趣与综合语言能力,为小学英语阅读启蒙教学提供可复制、可推广的创新路径。展开更多
On 8 January,President Xi Jinping sent a congratulatory letter to the launch ceremony of the 2026 China-Africa Year of People-to-People Exchanges held at the African Union headquarters in Addis Ababa,Ethiopia.Selected...On 8 January,President Xi Jinping sent a congratulatory letter to the launch ceremony of the 2026 China-Africa Year of People-to-People Exchanges held at the African Union headquarters in Addis Ababa,Ethiopia.Selected excerpts follow:The Year of People-to-People Exchanges marks a significant step to further cement public support for China-Africa friendship at a new historical starting point.展开更多
文摘The codling moth, Cydia pomonella L. （Lepidoptera： Tortricidae）, is a destructive insect pest in the fruit production. The emergences of this notorious pest frequently cause the huge economic loss of apple orchards. It can also attacks pears, walnuts and other tree fruits. The codling moth is an important invasive species in China, which first appeared in Kuerle, Xijiang in 1953 and rapidly expanded in the whole area, in 1987 the codling moth spread to Dunhuang, Gansu. Recently, researchers from the Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Nanjing Agricultural University and so on initiated a genome-sequencing project of the codling moth. The genome size of the codling moth is 650 Mb, as estimated by flow cytometry and survey sequencing. Since the heterozygousity is a potential obstacle in sequencing the insect genome, the research consortium carefully measured the heterozygousity of the codling moth by SNP analysis and 17-mer estimation, showing that the heterozygousity of the codling moth is around 0.3-0.6%. The whole genome shotgun strategy is adopted and a sequencing plan has been made and officially started. The availability of the codling moth genome should be of great value to uncover the molecular invasion mechanism, high adaptive ability to the stress and to develop efficient control strategies of this pest worldwide and in China.
文摘On November 23, the project to annually produce 3 million automotive transmission units, invested by Zhejiang Wanliyang Transmission Co., Ltd., started construction in Fuyuan county, Qujing city, Yunnan province. The project, with an investment of CNY 2 billion and an area of 300 mu （1 mu is about 667 m^2）, will be constructed a production base of automotive transmission.
文摘The ceremony for issuing the instrument of ratification on first fuel loading to Unit. 1 of Tianwan Nuclear Power Plant was hold on October 23 this year. The State Environmental Protection Administration issued this instrument at the ceremony. On the same day, ninety-five groups of PWR
文摘Xiangfan Coal-fired Power Plant, a key energy construction project matched with Three Gorges Project, approved by the State Council. formally started to build in the suburb of Xiangfan City, Hubei Province on November 29, 1996.
文摘The ground-breaking ceremony for the construction of an aquatic life museum was held on April 18 at the CAS Institute of Hydrobiology (IHB) in the city of Wuhan, capital of central China's Hubei Province. High-ranking officials including CAS Vice-President Chen Yiyu and Vice-Governor of Hubei Province took part in the ceremony. With its abundant aquatic specimens,the forthcoming museum is believed to be the largest of its kind in Asia.
文摘Bast fiber, which has not attracted that much attention before, is going to step up to be more recognized, so there comes the bast fiber fashion week, as an appetizer for the bast fiber promotion year.
文摘With the support of the Ministry of Science and Technology (MOST), scientists from the Chinese Academy of Atomic Energy and the Chinese Academy of Sciences (CAS) formally kicked off a new project to look into clean nuclear energy on September 27th in Beijing. The study, known as the accelerator-driven system of clean
文摘The Chinese medical rehabilitation industry is facing a golden period of development.At the recently-held China International Medical Equipment Fair(CMEF)in Beijing,more than 1,000 exhibitors from S.Korea,the U.S.,the U.K.France and other countries displayed more than 10,000 smart medical rehabilitation products,bringing the audience an interactive,medical and technological experience.The warm on-site atmosphere and technologically-inspiring products show that China’s medical rehabilitation industry is starting to fully mature.
基金Supported by the National Natural Science Foundation of China(Grant No.52172369).
文摘When the vehicle is on a split-μramp and is restricted by the differential's torque-equalizing characteristic,a sig-nificant functional conflict may occur between the driving force limitation requirement of the acceleration slip regulation(ASR)control strategy for low-adhesion side wheels and the driving force enhancement demand of the entire vehicle during hill starting.Aiming at this problem,this paper proposes an ASR control strategy for the start-up of the electric vehicle on the split-μramp based on the combined control architecture of the service brake system and the parking brake system.First,the relationship between the driving force,braking force,and road adhesion at the slip moment is analyzed,and the ground adhesion estimation algorithm based on the dynamic equation of the driving wheel slip moment is proposed.Second,a service braking torque control model is constructed,and an ASR controller method based on the super-twisting sliding mode control(STSMC)algorithm is proposed to study the hill start assist(HSA)control strategy of electric vehicles on split-μroads.Finally,the proposed control strategy is si-mulated in this paper.The simulation results show that the proposed strategy can accurately estimate the ground adhesion of the driving wheel on the low-adhesion side effectively preventing the vehicle from slipping back,and improving the dynamic performance of the vehicle under harsh conditions.
基金supported by the National Science and Technology Major Project-Intelligent Manufacturing Systems And Robots(2025ZD1602200)the National Key Research and Development Program of China(Grant No.2022YFB3304800).
文摘The accurate establishment of a ferrite transformation start temperature model is crucial to design a reasonable controlled rolling process and ensure uniform microstructure in aluminum bearing dual-phase steel.The measurements of the expansion-temperature curves of aluminum bearing dual-phase steel under continuous cooling and isothermal conditions are presented,utilizing a dynamic transformation dilatometer experiment.Based on these expansion-temperature curves,the start temperature and incubation time of ferrite transformation were determined,elucidating the influence of process parameters on both the incubation time and the start temperature of ferrite transformation.By integrating metallurgical principles with measured incubation time of ferrite transformation,and considering the effects of temperature and strain,a fitting model for the variation in volume free energy during ferrite nucleation was derived.Building upon this foundation,a high-precision incubation time of ferrite transformation mathematical model for the experimental steel was established.To more accurately calculate the start temperature of ferrite transformation under continuous cooling conditions,the Scheil’s additivity rule was modified to account for the effects of deformation and cooling rate.The results indicate that the modification coefficient decreases with increasing the cooling rate and strain,thereby significantly improving the accuracy of calculating the starting temperature of ferrite transformation using the modified additivity rule.
文摘In the first quarter of 2019, despite complex and daunting conditions both at home and abroad, China continued to uphold the core principle of progress amidst stability. We remained committed to the new development philosophy, resolutely promoted high-quality growth by focusing on furthering structural reform on the supply side, and continued to fight the three critical battles against potential risks, poverty, and pollution. Thanks to these efforts, ChinaJs economic performance has maintained overall stability and exceeded expectations.
文摘聚焦PEP新教材Start to read板块教学,针对传统阅读启蒙课存在的思维培养不足、教学活动单一等问题,提出“问题·活动·评价”三位一体的教学新范式。通过构建层级化问题体系引导思维进阶,设计梯度式活动促进语篇理解,实施全程化评价保障学习效果。研究表明,该范式能有效提升学生阅读兴趣与综合语言能力,为小学英语阅读启蒙教学提供可复制、可推广的创新路径。
文摘On 8 January,President Xi Jinping sent a congratulatory letter to the launch ceremony of the 2026 China-Africa Year of People-to-People Exchanges held at the African Union headquarters in Addis Ababa,Ethiopia.Selected excerpts follow:The Year of People-to-People Exchanges marks a significant step to further cement public support for China-Africa friendship at a new historical starting point.
