AS the youngest African country until the inde- pendence of South Su- dan in 2011, Eritrea has a history of no longer than two decades. Today, the name of Eritrea is still unfamiliar to most Chinese. But during his th...AS the youngest African country until the inde- pendence of South Su- dan in 2011, Eritrea has a history of no longer than two decades. Today, the name of Eritrea is still unfamiliar to most Chinese. But during his three years of work as Chinese Ambassador to Eritrea, Li Liansheng saw close ties between the two countries, both in the past and in the future.展开更多
A research project on China's tropical higher fungi was recently completed, providing a clear picture of the microbiological resource and a solid foundation for the protection, exploration and rational utiliza... A research project on China's tropical higher fungi was recently completed, providing a clear picture of the microbiological resource and a solid foundation for the protection, exploration and rational utilization of China's natural legacies of biodiversity in general and tropical fungal resources in particular.……展开更多
Cinderella National Ballet of China.Date:Febuary 2-4,2024.Venue:National Center for the Performing Arts.Rooted in romance and decorum,Cinderella is a tale of courage,hope,and heart that is suitable for audiences of al...Cinderella National Ballet of China.Date:Febuary 2-4,2024.Venue:National Center for the Performing Arts.Rooted in romance and decorum,Cinderella is a tale of courage,hope,and heart that is suitable for audiences of all ages.Founded in December 1959,the National Ballet of China has top-notch artistic personnel trained at professional art institutes and keeps drawing on the strengths of different art genres with Russian skills as its core.In addition to ushering in a high number of world classics,it has independently produced numerous masterpieces with distinct national characteristics,featureing an amazing fusion of the classical with the modern and the national with the international.展开更多
1. Sketch素描.Sketching is a monochrome drawing that uses lines to depict the light and shade of objects with materials such as charcoal, pencils, or pens. Monochrome watercolor and monochrome oil paintings can also b...1. Sketch素描.Sketching is a monochrome drawing that uses lines to depict the light and shade of objects with materials such as charcoal, pencils, or pens. Monochrome watercolor and monochrome oil paintings can also be considered sketches;traditional Chinese fineline paintings and ink wash paintings can also be called sketches. Usually, sketching refers to pencil and charcoal drawings.展开更多
Against the backdrop of a huge painting of willow trees at the Nationali Art Museum of China in downtown Beijing, Wang Fujing, 40, wove willow twigs into a flower basket as if he were at home.
Afinancial crisis hits the world,adding more chill to the winter in 2008. Among the sufferers are the trembling steel industry and the auto industry which begins detecting the cold.In these days,these two industries a...Afinancial crisis hits the world,adding more chill to the winter in 2008. Among the sufferers are the trembling steel industry and the auto industry which begins detecting the cold.In these days,these two industries are worrying about their future in 2009 and wondering when the spring will come.The point is,will the steel industry embrace a better time in 2009?And to what extent it will affect the auto industry?展开更多
ALTHOUGH born in late 1950s, Xie Lijun’s experiences and paintings have no obvious reference to that time in history. She is more like a much older woman who grew up under the old system. She paints about everything,...ALTHOUGH born in late 1950s, Xie Lijun’s experiences and paintings have no obvious reference to that time in history. She is more like a much older woman who grew up under the old system. She paints about everything, from flowers, birds and landscapes to people, legends, and religion. Many of her works have won national awards. In addition to the freehand brushwork and flower-bird paintings that reflect her quiet elegance, her best work can be found in the "展开更多
The Communist Party of China(CPC)has charted the course for China’s development in the next 15 years to guide the country’s march toward modernization.Details of the blueprint were unveiled ina communiquéissued...The Communist Party of China(CPC)has charted the course for China’s development in the next 15 years to guide the country’s march toward modernization.Details of the blueprint were unveiled ina communiquéissued after the conclusion of the four-day Fifth Plenary Session of the 19 th CPC Central Committee on October 29.The roles of innovation,real economy,a strong domestic market。展开更多
At present,iron and steel enterprises mainly use“after spot test ward”to control final product quality.However,it is impossible to realize on-line quality predetermining for all products by this traditional approach...At present,iron and steel enterprises mainly use“after spot test ward”to control final product quality.However,it is impossible to realize on-line quality predetermining for all products by this traditional approach,hence claims and returns often occur,resulting in major eco-nomic losses of enterprises.In order to realize the on-line quality predetermining for steel products during manufacturing process,the predic-tion models of mechanical properties based on deep learning have been proposed in this work.First,the mechanical properties of deep drawing steels were predicted by using LSTM(long short team memory),GRU(gated recurrent unit)network,and GPR(Gaussian process regression)model,and prediction accuracy and learning efficiency for different models were also discussed.Then,on-line re-learning methods for transfer learning models and model parameters were proposed.The experimental results show that not only the prediction accuracy of optimized trans-fer learning models has been improved,but also predetermining time was shortened to meet real time requirements of on-line property prede-termining.The industrial production data of interstitial-free(IF)steel was used to demonstrate that R2 value of GRU model in training stage reaches more than 0.99,and R2 value in testing stage is more than 0.96.展开更多
By adopting a homemade extension apparatus and wide-angle X-ray diffraction(WAXD)technique,the structural evolutions of the extracted ultra-high molecular weight polyethylene(UHMWPE)fibers with different spinning draw...By adopting a homemade extension apparatus and wide-angle X-ray diffraction(WAXD)technique,the structural evolutions of the extracted ultra-high molecular weight polyethylene(UHMWPE)fibers with different spinning draw ratios were investigated during the poststretching process.Molecular chains oriented along the axis quickly at the early stage of drawing,which is quite different from the situation of drawing with solvents.The crystal regions,which have not melted at higher temperature,show stronger rigidity in the absence of solvents.Rigid characteristics show faster response to the external field.Also,the surface morphologies of fibers after poststretching are characterized by scanning electron microscopy(SEM).The lamellae stack disordered before stretching,but arranged in order along the draw direction when the draw ratios were larger than 1.展开更多
Industrial robot which can acquire high accuracy has been widely used in automatic assembly.Usually,the geometric parameter of industrial robot should be inspected during manufacturing and application.High precision m...Industrial robot which can acquire high accuracy has been widely used in automatic assembly.Usually,the geometric parameter of industrial robot should be inspected during manufacturing and application.High precision measurement equipment was utilized to acquire the position and orientation of robot’s end⁃effector,when calibrating the geometric parameter of robot.A kind of measurement system based on a draw⁃wire encoder was presented,since the current measurement equipment has some disadvantages,such as the cost and the requirements of working environment are high.According to this kind of measurement system,a sort of geometric calibration method of robot was presented including position and orientation parameters.The uncertain arc length of the cable length between robot end⁃effector and the measurement can be exactly acquired according to the position and orientation parameters.The pose⁃solving model of robot end⁃effector was associated with the kinematic model of robot,and robot’s geometric parameter can be computed by using the least⁃squares methods.Validate instance was conducted,the result showed that the optimal number of the calibration pose was 47 with little improvement in accuracy,even if increasing the number of calibration pose.Robot calibration experiment was performed and the results showed that the absolute accuracy of robot decreased from 4.32 mm to 0.87 mm after calibration,which improved the robot’s absolute accuracy effectively.展开更多
This October,International Monetary Fund(IMF)staff and the Sri Lankan authorities reached a stafflevel agreement on economic policies to conclude the first review of the 48-month Extended Fund Facility(EFF)-supported ...This October,International Monetary Fund(IMF)staff and the Sri Lankan authorities reached a stafflevel agreement on economic policies to conclude the first review of the 48-month Extended Fund Facility(EFF)-supported programme.Sri Lanka will have access to Special Drawing Right(SDR)254 million(about US$330 million)in financing once the review is approved by IMF Management and IMF Executive Board.展开更多
Objective:To analyze the effect of drawing therapy in cancer patients and to explore the effect of drawing therapy on negative emotions and quality of life of cancer patients,in order to provide reference for future r...Objective:To analyze the effect of drawing therapy in cancer patients and to explore the effect of drawing therapy on negative emotions and quality of life of cancer patients,in order to provide reference for future related research.Methods:A computer search of Embase,Web of Science,Cochrane Library,PubMed,China Knowledge Network,Wanfang database,Vipshop database and China Biomedical Literature Service was conducted to retrieve relevant studies on the application of painting therapy in cancer patients from the database to December 2022,using the scoping review method as a guide.Results:A total of 15 publications were included,including 10 randomized controlled trials,4 class experimental studies and 1 cohort study,with full text summarizing the type of painting therapy,painting duration,intervention period,interventionist and treatment adherence.The main indicators of outcome included physiological indicators such as nausea and vomiting,negative emotions such as anxiety and depression and quality of life such as fatigue status and sleep quality in cancer patients.Conclusions:Painting therapy can reduce the degree of nausea,reduce negative emotions such as anxiety and depression,reduce fatigue,improve sleep quality and improve quality of life in cancer patients,but the degree of vomiting in cancer patients still needs to be further explored.In the future,we need to extend the follow-up period of painting therapy and explore the long-term effect of painting therapy applied in cancer patients.展开更多
Hubei Tianmen Textile Machinery Co.,Ltd.is a well-known enterprise and key high-tech enterprise in China textile industry.The company's leading product,drawing frame,has completely independent intellectual propert...Hubei Tianmen Textile Machinery Co.,Ltd.is a well-known enterprise and key high-tech enterprise in China textile industry.The company's leading product,drawing frame,has completely independent intellectual property rights,among which TM 11 is well received by users and has a high market share in China.展开更多
In the city of Gdansk in Poland,in the very center of the Baltic capital,on 17th of June 2017,a new draw footbridge was ceremoniously opened to the public.The Olowianka footbridge represents the long-time much needed ...In the city of Gdansk in Poland,in the very center of the Baltic capital,on 17th of June 2017,a new draw footbridge was ceremoniously opened to the public.The Olowianka footbridge represents the long-time much needed link between the highly tourist-visited historical old town and Ołowianka Island,where further cultural,tourist and recreation facilities are located.The bridge spans a very busy navigable channel of the Motława River,leading inward towards other city channels,a harbor for many tourist ships and the Gdansk Marina.Being the main navigable entrance to the city center,the Motława is constantly under nautical traffic,so the Ołowianka footbridge operates 24/7,according to a 30-min schedule.The Ołowianka footbridge is an extraordinary acquisition for the city of Gdansk,which immediately became a new landmark and much more in the already very picturesque historic city center.Not just its design,but also its carefully chosen location and its realization at the right moment,has made this bridge indispensable to the inhabitants,visitors and the administration of the city of Gdansk,decisively contributing to further development in the Ołowianka Island area and its surroundings.展开更多
文摘AS the youngest African country until the inde- pendence of South Su- dan in 2011, Eritrea has a history of no longer than two decades. Today, the name of Eritrea is still unfamiliar to most Chinese. But during his three years of work as Chinese Ambassador to Eritrea, Li Liansheng saw close ties between the two countries, both in the past and in the future.
文摘 A research project on China's tropical higher fungi was recently completed, providing a clear picture of the microbiological resource and a solid foundation for the protection, exploration and rational utilization of China's natural legacies of biodiversity in general and tropical fungal resources in particular.……
文摘Cinderella National Ballet of China.Date:Febuary 2-4,2024.Venue:National Center for the Performing Arts.Rooted in romance and decorum,Cinderella is a tale of courage,hope,and heart that is suitable for audiences of all ages.Founded in December 1959,the National Ballet of China has top-notch artistic personnel trained at professional art institutes and keeps drawing on the strengths of different art genres with Russian skills as its core.In addition to ushering in a high number of world classics,it has independently produced numerous masterpieces with distinct national characteristics,featureing an amazing fusion of the classical with the modern and the national with the international.
文摘1. Sketch素描.Sketching is a monochrome drawing that uses lines to depict the light and shade of objects with materials such as charcoal, pencils, or pens. Monochrome watercolor and monochrome oil paintings can also be considered sketches;traditional Chinese fineline paintings and ink wash paintings can also be called sketches. Usually, sketching refers to pencil and charcoal drawings.
文摘Against the backdrop of a huge painting of willow trees at the Nationali Art Museum of China in downtown Beijing, Wang Fujing, 40, wove willow twigs into a flower basket as if he were at home.
文摘Afinancial crisis hits the world,adding more chill to the winter in 2008. Among the sufferers are the trembling steel industry and the auto industry which begins detecting the cold.In these days,these two industries are worrying about their future in 2009 and wondering when the spring will come.The point is,will the steel industry embrace a better time in 2009?And to what extent it will affect the auto industry?
文摘ALTHOUGH born in late 1950s, Xie Lijun’s experiences and paintings have no obvious reference to that time in history. She is more like a much older woman who grew up under the old system. She paints about everything, from flowers, birds and landscapes to people, legends, and religion. Many of her works have won national awards. In addition to the freehand brushwork and flower-bird paintings that reflect her quiet elegance, her best work can be found in the "
文摘The Communist Party of China(CPC)has charted the course for China’s development in the next 15 years to guide the country’s march toward modernization.Details of the blueprint were unveiled ina communiquéissued after the conclusion of the four-day Fifth Plenary Session of the 19 th CPC Central Committee on October 29.The roles of innovation,real economy,a strong domestic market。
基金financially supported by the National Natural Science Foundation of China (No. 52175284)the State Key Lab of Advanced Metals and Materials in University of Science and Technology Beijing (No. 2021ZD08)
文摘At present,iron and steel enterprises mainly use“after spot test ward”to control final product quality.However,it is impossible to realize on-line quality predetermining for all products by this traditional approach,hence claims and returns often occur,resulting in major eco-nomic losses of enterprises.In order to realize the on-line quality predetermining for steel products during manufacturing process,the predic-tion models of mechanical properties based on deep learning have been proposed in this work.First,the mechanical properties of deep drawing steels were predicted by using LSTM(long short team memory),GRU(gated recurrent unit)network,and GPR(Gaussian process regression)model,and prediction accuracy and learning efficiency for different models were also discussed.Then,on-line re-learning methods for transfer learning models and model parameters were proposed.The experimental results show that not only the prediction accuracy of optimized trans-fer learning models has been improved,but also predetermining time was shortened to meet real time requirements of on-line property prede-termining.The industrial production data of interstitial-free(IF)steel was used to demonstrate that R2 value of GRU model in training stage reaches more than 0.99,and R2 value in testing stage is more than 0.96.
基金Founded by the PhD Foundation of Anhui Jianzhu University (2018QD59)the Natural Science Foundation of Anhui Ed ucation Department (Nos.KJ2021A0624,KJ2019JD18,and KJ2019A0774)+1 种基金the National Natural Science Foundation of China (Nos.51903002,51703218,and 51633009)the Anhui Provincial Science and Technology Major Projects (Nos.17030901101 and 201903a05020027)。
文摘By adopting a homemade extension apparatus and wide-angle X-ray diffraction(WAXD)technique,the structural evolutions of the extracted ultra-high molecular weight polyethylene(UHMWPE)fibers with different spinning draw ratios were investigated during the poststretching process.Molecular chains oriented along the axis quickly at the early stage of drawing,which is quite different from the situation of drawing with solvents.The crystal regions,which have not melted at higher temperature,show stronger rigidity in the absence of solvents.Rigid characteristics show faster response to the external field.Also,the surface morphologies of fibers after poststretching are characterized by scanning electron microscopy(SEM).The lamellae stack disordered before stretching,but arranged in order along the draw direction when the draw ratios were larger than 1.
基金Sponsored by the National Natural Science Foundation of China(Grant No.52075258).
文摘Industrial robot which can acquire high accuracy has been widely used in automatic assembly.Usually,the geometric parameter of industrial robot should be inspected during manufacturing and application.High precision measurement equipment was utilized to acquire the position and orientation of robot’s end⁃effector,when calibrating the geometric parameter of robot.A kind of measurement system based on a draw⁃wire encoder was presented,since the current measurement equipment has some disadvantages,such as the cost and the requirements of working environment are high.According to this kind of measurement system,a sort of geometric calibration method of robot was presented including position and orientation parameters.The uncertain arc length of the cable length between robot end⁃effector and the measurement can be exactly acquired according to the position and orientation parameters.The pose⁃solving model of robot end⁃effector was associated with the kinematic model of robot,and robot’s geometric parameter can be computed by using the least⁃squares methods.Validate instance was conducted,the result showed that the optimal number of the calibration pose was 47 with little improvement in accuracy,even if increasing the number of calibration pose.Robot calibration experiment was performed and the results showed that the absolute accuracy of robot decreased from 4.32 mm to 0.87 mm after calibration,which improved the robot’s absolute accuracy effectively.
文摘This October,International Monetary Fund(IMF)staff and the Sri Lankan authorities reached a stafflevel agreement on economic policies to conclude the first review of the 48-month Extended Fund Facility(EFF)-supported programme.Sri Lanka will have access to Special Drawing Right(SDR)254 million(about US$330 million)in financing once the review is approved by IMF Management and IMF Executive Board.
文摘Objective:To analyze the effect of drawing therapy in cancer patients and to explore the effect of drawing therapy on negative emotions and quality of life of cancer patients,in order to provide reference for future related research.Methods:A computer search of Embase,Web of Science,Cochrane Library,PubMed,China Knowledge Network,Wanfang database,Vipshop database and China Biomedical Literature Service was conducted to retrieve relevant studies on the application of painting therapy in cancer patients from the database to December 2022,using the scoping review method as a guide.Results:A total of 15 publications were included,including 10 randomized controlled trials,4 class experimental studies and 1 cohort study,with full text summarizing the type of painting therapy,painting duration,intervention period,interventionist and treatment adherence.The main indicators of outcome included physiological indicators such as nausea and vomiting,negative emotions such as anxiety and depression and quality of life such as fatigue status and sleep quality in cancer patients.Conclusions:Painting therapy can reduce the degree of nausea,reduce negative emotions such as anxiety and depression,reduce fatigue,improve sleep quality and improve quality of life in cancer patients,but the degree of vomiting in cancer patients still needs to be further explored.In the future,we need to extend the follow-up period of painting therapy and explore the long-term effect of painting therapy applied in cancer patients.
文摘Hubei Tianmen Textile Machinery Co.,Ltd.is a well-known enterprise and key high-tech enterprise in China textile industry.The company's leading product,drawing frame,has completely independent intellectual property rights,among which TM 11 is well received by users and has a high market share in China.
文摘In the city of Gdansk in Poland,in the very center of the Baltic capital,on 17th of June 2017,a new draw footbridge was ceremoniously opened to the public.The Olowianka footbridge represents the long-time much needed link between the highly tourist-visited historical old town and Ołowianka Island,where further cultural,tourist and recreation facilities are located.The bridge spans a very busy navigable channel of the Motława River,leading inward towards other city channels,a harbor for many tourist ships and the Gdansk Marina.Being the main navigable entrance to the city center,the Motława is constantly under nautical traffic,so the Ołowianka footbridge operates 24/7,according to a 30-min schedule.The Ołowianka footbridge is an extraordinary acquisition for the city of Gdansk,which immediately became a new landmark and much more in the already very picturesque historic city center.Not just its design,but also its carefully chosen location and its realization at the right moment,has made this bridge indispensable to the inhabitants,visitors and the administration of the city of Gdansk,decisively contributing to further development in the Ołowianka Island area and its surroundings.