After careful consideration,with the consent of Editor-inChief Weiyan Zhang(张维岩)and Editor-in-Chief Ho-kwang Mao(毛河光),I have decided to step down as the Executive Editor-inChief of MRE to focus on my health and ...After careful consideration,with the consent of Editor-inChief Weiyan Zhang(张维岩)and Editor-in-Chief Ho-kwang Mao(毛河光),I have decided to step down as the Executive Editor-inChief of MRE to focus on my health and research.I will be succeeded by the next Executive Editor-in-Chief,Professor Jinren Sun(孙今人)of the Shanghai Institute of Laser Plasma,China Academy of Engineering Physics,and Professor Hongbo Cai(蔡洪波)of the Institute of Applied Physics and Computational Mathematics in Beijing.With the help of both of these excellent and experienced physicists,I believe that MRE and its community can be raised to a higher level.展开更多
主题语境:励志故事篇幅:322词建议用时:6分钟。1 A grandfather named Paul Hocheder has decided to keep his mind moving with a full college experience at 90 years old.2 Paul already earned one degree in 1960,when he gradua...主题语境:励志故事篇幅:322词建议用时:6分钟。1 A grandfather named Paul Hocheder has decided to keep his mind moving with a full college experience at 90 years old.2 Paul already earned one degree in 1960,when he graduated from the University of Maryland after serving seven years in the service.But he decided it would help keep him awake and alive if he went back for another round.展开更多
Eating healthy is my good habit.I used to having lots of bad eating habits.For example,I had no breakfast,but ate junk food or drank cola,so I often got sick.To keep fit,I decided to change my bad eating habits.Now,I ...Eating healthy is my good habit.I used to having lots of bad eating habits.For example,I had no breakfast,but ate junk food or drank cola,so I often got sick.To keep fit,I decided to change my bad eating habits.Now,I always have my three meals regularly.I try my best to eat more fresh fruit and green vegetables instead of junk food.I also drink more milk and water.Gradually,I find my body is geting more and more strong.展开更多
Since entering into the new era,China has made extraordinary achievements,most noteworthy being that the 5th Plenary Session of the 19th Communist Party of China(CPC)Central Committee decided to accelerate efforts to ...Since entering into the new era,China has made extraordinary achievements,most noteworthy being that the 5th Plenary Session of the 19th Communist Party of China(CPC)Central Committee decided to accelerate efforts to foster a new development paradigm that is focused on the domestic economy but features positive interplay between domestic and international economic flows.展开更多
The annual Central Economic Work Conference was held in Beijing from Dec.11 to 12 as Chinese leaders decided priorities for the economic work in 2024.Xi Jinping,general secretary of the Communist Party of China Centra...The annual Central Economic Work Conference was held in Beijing from Dec.11 to 12 as Chinese leaders decided priorities for the economic work in 2024.Xi Jinping,general secretary of the Communist Party of China Central Committee,Chinese president and chairman of the Central Military Commission,delivered an important speech at the conference.展开更多
Women are playing an increasingly bigger role in China’s economy ‘I will do my best to help my family to keep the old shop going,” said Fang Fang, a young e-commerce operator who was born in the 1990s,when sharing ...Women are playing an increasingly bigger role in China’s economy ‘I will do my best to help my family to keep the old shop going,” said Fang Fang, a young e-commerce operator who was born in the 1990s,when sharing her story about how she saved the family’s old shop through e-commerce, at a peer sharing event held by Douyin, China’s leading short video app and an emerging e-commerce platform.In 2020, the wholesale shop of tonic products that her parents had run for more than 30 years was at the brink of shutdown due to the COVD-19 pandemic.Fang decided to help and started to seek opportunities in e-commerce.展开更多
“Where's Papa going with the ax?”said Fern to her mother as they were set⁃ting the table for breakfast.“Out to the hog house,”replied Mrs Arable.“Some pigs were born last night.”“I dont see why he needs an ...“Where's Papa going with the ax?”said Fern to her mother as they were set⁃ting the table for breakfast.“Out to the hog house,”replied Mrs Arable.“Some pigs were born last night.”“I dont see why he needs an ax,”conti⁃nued Fern,who was only eight.“Well,”said her mother,“one of the pigs is a runt.It's very small and weak,and it will never amount to anything.So your fa⁃ther has decided to do away with it.”“Do away with it?”shrieked Fern.“You mean kill it?Just because it's smaller than the others?”展开更多
Karis Wales,Isha and Diya Goel were born prematurely(过早地).The twins and Karis,who has a twin brother,are now 13.They were born and cared for at the same Arizona hospital,just days apart.After reuniting in the sixth...Karis Wales,Isha and Diya Goel were born prematurely(过早地).The twins and Karis,who has a twin brother,are now 13.They were born and cared for at the same Arizona hospital,just days apart.After reuniting in the sixth grade,Karis,Isha,and Diya formed a close bond.A year later,they decided to create a club called Knots for NICU at school to help support families like theirs.展开更多
China has cancelled Rwanda’s $7.1-million loan used for building a road Residents in the Masaka and Kabuga suburbs of Rwanda’s capital Kigali were happy to learn that the Chinese government has decided to cancel the...China has cancelled Rwanda’s $7.1-million loan used for building a road Residents in the Masaka and Kabuga suburbs of Rwanda’s capital Kigali were happy to learn that the Chinese government has decided to cancel the debt used for the construction of a road in their locality.展开更多
My son Joey was born with*club feet1. Doctors assured us that with treatment he would be able to walk normally-but would never run very well. The first three years of his life were spent in surgery casts and braces. B...My son Joey was born with*club feet1. Doctors assured us that with treatment he would be able to walk normally-but would never run very well. The first three years of his life were spent in surgery casts and braces. By the time he was eight, you wouldn’t know he had a problem when you saw him walk.展开更多
Shoppers,crowding into the West End of Londonyesterday for the start of sales,answered demands fromthe police to use public transportation rather than theircars.They also decided not to invite danger,after thebursting...Shoppers,crowding into the West End of Londonyesterday for the start of sales,answered demands fromthe police to use public transportation rather than theircars.They also decided not to invite danger,after thebursting of a bomb in the West End on Christmasevening,by not waiting in line outside the shops.“Iwould have been very worried of what they had.”saidMr Harry Weblin,manager of Liberty’s.Last night the police,which operated a big actionincluding special searches outside the main shops,spoke highly of the common sense of the展开更多
Cropping structure has a close relationship with the optimal allocation of agricultural water resources. Based on the analysis of the relationship between agricultural water resources and sustainable development, this...Cropping structure has a close relationship with the optimal allocation of agricultural water resources. Based on the analysis of the relationship between agricultural water resources and sustainable development, this paper presents a multi objective fuzzy optimization model for cropping structure and water allocation, which overcomes the shortcoming of current models that only considered the economic objective,and ignored the social and environmental objectives. During the process, a new method named fuzzy deciding weight is developed to decide the objective weight. A case study shows that the model is reliable, the method is simple and objective, and the results are reasonable. This model is useful for agricultural management and sustainable development.展开更多
In this paper,an improved Susceptible-Infected-Susceptible(SIS) epidemic spreading model is proposed in order to provide a theoretical method to analyze and predict the spreading of diseases.This model is based on the...In this paper,an improved Susceptible-Infected-Susceptible(SIS) epidemic spreading model is proposed in order to provide a theoretical method to analyze and predict the spreading of diseases.This model is based on the following ideas:in social networks,the contact probability between nodes is decided by their social distances and their active degrees.The contact probability of two indirectly connected nodes is decided by the shortest path between them.Theoretical analysis and simulation experiment were conducted to evaluate the performance of this improved model.Because the proposed model is independent of the network structure,simulation experiments were done in several kinds of networks,namely the ER network,the random regular network,the WS small world network,and the BA scale-free network,in order to study the influences of certain factors have on the epidemic spreading,such as the social contact active degree,the network structure,the average degree,etc.This improved model provides an idea for studying the spreading rule of computer virus,attitudes,fashion styles and public opinions in social networks.展开更多
At the beginning of 2004, the Chinese government decided to introduce the System of Social Support for Some Rural Families Practicing Family Planning ("social support system"). The General Office of the Stat...At the beginning of 2004, the Chinese government decided to introduce the System of Social Support for Some Rural Families Practicing Family Planning ("social support system"). The General Office of the State Council introduced the proposed program of the National Population and Family Planning Commission (NPFPC) and Ministry of Finance (MOF) on implementing the pilot project of the social support system ("Pilot展开更多
Searching for maritime moving targets using satellites is an attracting but rather difficult problem due to the satellites' orbits and discontinuous visible time windows.From a long term cyclic view,a non-myopic m...Searching for maritime moving targets using satellites is an attracting but rather difficult problem due to the satellites' orbits and discontinuous visible time windows.From a long term cyclic view,a non-myopic method based on reinforcement learning(RL)for multi-pass multi-targets searching was proposed.It learnt system behaviors step by step from each observation which resulted in a dynamic progressive way.Then it decided and adjusted optimal actions in each observation opportunity.System states were indicated by expected information gain.Neural networks algorithm was used to approximate parameters of control policy.Simulation results show that our approach with sufficient training performs significantly better than other myopic approaches which make local optimal decisions for each individual observation opportunity.展开更多
【问】[389]在美国朋友来信中,常有visit with这个用语。例如: 1.We decided to come to North Carolina and visitwith our son for 6 weeks. 2.We are talking about the possibility of takinganother trip to Ningbo while we’re t...【问】[389]在美国朋友来信中,常有visit with这个用语。例如: 1.We decided to come to North Carolina and visitwith our son for 6 weeks. 2.We are talking about the possibility of takinganother trip to Ningbo while we’re there to visit with you.展开更多
基金supported by the National Natural Science Foundation of China(Grant No.12035002).
文摘After careful consideration,with the consent of Editor-inChief Weiyan Zhang(张维岩)and Editor-in-Chief Ho-kwang Mao(毛河光),I have decided to step down as the Executive Editor-inChief of MRE to focus on my health and research.I will be succeeded by the next Executive Editor-in-Chief,Professor Jinren Sun(孙今人)of the Shanghai Institute of Laser Plasma,China Academy of Engineering Physics,and Professor Hongbo Cai(蔡洪波)of the Institute of Applied Physics and Computational Mathematics in Beijing.With the help of both of these excellent and experienced physicists,I believe that MRE and its community can be raised to a higher level.
文摘主题语境:励志故事篇幅:322词建议用时:6分钟。1 A grandfather named Paul Hocheder has decided to keep his mind moving with a full college experience at 90 years old.2 Paul already earned one degree in 1960,when he graduated from the University of Maryland after serving seven years in the service.But he decided it would help keep him awake and alive if he went back for another round.
文摘Eating healthy is my good habit.I used to having lots of bad eating habits.For example,I had no breakfast,but ate junk food or drank cola,so I often got sick.To keep fit,I decided to change my bad eating habits.Now,I always have my three meals regularly.I try my best to eat more fresh fruit and green vegetables instead of junk food.I also drink more milk and water.Gradually,I find my body is geting more and more strong.
文摘Since entering into the new era,China has made extraordinary achievements,most noteworthy being that the 5th Plenary Session of the 19th Communist Party of China(CPC)Central Committee decided to accelerate efforts to foster a new development paradigm that is focused on the domestic economy but features positive interplay between domestic and international economic flows.
文摘The annual Central Economic Work Conference was held in Beijing from Dec.11 to 12 as Chinese leaders decided priorities for the economic work in 2024.Xi Jinping,general secretary of the Communist Party of China Central Committee,Chinese president and chairman of the Central Military Commission,delivered an important speech at the conference.
文摘Women are playing an increasingly bigger role in China’s economy ‘I will do my best to help my family to keep the old shop going,” said Fang Fang, a young e-commerce operator who was born in the 1990s,when sharing her story about how she saved the family’s old shop through e-commerce, at a peer sharing event held by Douyin, China’s leading short video app and an emerging e-commerce platform.In 2020, the wholesale shop of tonic products that her parents had run for more than 30 years was at the brink of shutdown due to the COVD-19 pandemic.Fang decided to help and started to seek opportunities in e-commerce.
文摘“Where's Papa going with the ax?”said Fern to her mother as they were set⁃ting the table for breakfast.“Out to the hog house,”replied Mrs Arable.“Some pigs were born last night.”“I dont see why he needs an ax,”conti⁃nued Fern,who was only eight.“Well,”said her mother,“one of the pigs is a runt.It's very small and weak,and it will never amount to anything.So your fa⁃ther has decided to do away with it.”“Do away with it?”shrieked Fern.“You mean kill it?Just because it's smaller than the others?”
文摘Karis Wales,Isha and Diya Goel were born prematurely(过早地).The twins and Karis,who has a twin brother,are now 13.They were born and cared for at the same Arizona hospital,just days apart.After reuniting in the sixth grade,Karis,Isha,and Diya formed a close bond.A year later,they decided to create a club called Knots for NICU at school to help support families like theirs.
文摘China has cancelled Rwanda’s $7.1-million loan used for building a road Residents in the Masaka and Kabuga suburbs of Rwanda’s capital Kigali were happy to learn that the Chinese government has decided to cancel the debt used for the construction of a road in their locality.
文摘My son Joey was born with*club feet1. Doctors assured us that with treatment he would be able to walk normally-but would never run very well. The first three years of his life were spent in surgery casts and braces. By the time he was eight, you wouldn’t know he had a problem when you saw him walk.
文摘Shoppers,crowding into the West End of Londonyesterday for the start of sales,answered demands fromthe police to use public transportation rather than theircars.They also decided not to invite danger,after thebursting of a bomb in the West End on Christmasevening,by not waiting in line outside the shops.“Iwould have been very worried of what they had.”saidMr Harry Weblin,manager of Liberty’s.Last night the police,which operated a big actionincluding special searches outside the main shops,spoke highly of the common sense of the
文摘Cropping structure has a close relationship with the optimal allocation of agricultural water resources. Based on the analysis of the relationship between agricultural water resources and sustainable development, this paper presents a multi objective fuzzy optimization model for cropping structure and water allocation, which overcomes the shortcoming of current models that only considered the economic objective,and ignored the social and environmental objectives. During the process, a new method named fuzzy deciding weight is developed to decide the objective weight. A case study shows that the model is reliable, the method is simple and objective, and the results are reasonable. This model is useful for agricultural management and sustainable development.
基金supported by National Natural Science Foundation of China 61301091Shaanxi Province Science and Technology Project 2015GY015
文摘In this paper,an improved Susceptible-Infected-Susceptible(SIS) epidemic spreading model is proposed in order to provide a theoretical method to analyze and predict the spreading of diseases.This model is based on the following ideas:in social networks,the contact probability between nodes is decided by their social distances and their active degrees.The contact probability of two indirectly connected nodes is decided by the shortest path between them.Theoretical analysis and simulation experiment were conducted to evaluate the performance of this improved model.Because the proposed model is independent of the network structure,simulation experiments were done in several kinds of networks,namely the ER network,the random regular network,the WS small world network,and the BA scale-free network,in order to study the influences of certain factors have on the epidemic spreading,such as the social contact active degree,the network structure,the average degree,etc.This improved model provides an idea for studying the spreading rule of computer virus,attitudes,fashion styles and public opinions in social networks.
文摘At the beginning of 2004, the Chinese government decided to introduce the System of Social Support for Some Rural Families Practicing Family Planning ("social support system"). The General Office of the State Council introduced the proposed program of the National Population and Family Planning Commission (NPFPC) and Ministry of Finance (MOF) on implementing the pilot project of the social support system ("Pilot
基金National Natural Science Foundation of China(No.61203180)
文摘Searching for maritime moving targets using satellites is an attracting but rather difficult problem due to the satellites' orbits and discontinuous visible time windows.From a long term cyclic view,a non-myopic method based on reinforcement learning(RL)for multi-pass multi-targets searching was proposed.It learnt system behaviors step by step from each observation which resulted in a dynamic progressive way.Then it decided and adjusted optimal actions in each observation opportunity.System states were indicated by expected information gain.Neural networks algorithm was used to approximate parameters of control policy.Simulation results show that our approach with sufficient training performs significantly better than other myopic approaches which make local optimal decisions for each individual observation opportunity.
文摘【问】[389]在美国朋友来信中,常有visit with这个用语。例如: 1.We decided to come to North Carolina and visitwith our son for 6 weeks. 2.We are talking about the possibility of takinganother trip to Ningbo while we’re there to visit with you.
