On July 1, 2019, the website of the National Health Commission of the People’s Republic of China issued the “Notice on printing and distributing the first batch of national key monitoring and rational drugs (chemica...On July 1, 2019, the website of the National Health Commission of the People’s Republic of China issued the “Notice on printing and distributing the first batch of national key monitoring and rational drugs (chemicals and biological products)”(National Health Office Medical Letter [2019] No. 558)[1], where the third article stipulates:“Other types of physicians, after not less than one year of systematically studying Chinese medicine professional knowledge and passing the examination, in accordance with the basic principles of syndrome differentiation, can issue prescriptions for Chinese patent medicine”.展开更多
The new catalogue of processing trade-banned commodities was announced recently.The announcement was executed since November 22 of 2006.The Catalogue will be adjusted according to related policies of the state.
For some time now, mobile phones have become indispensable and ubiquitous tools in our daily lives. Despite their convenience, they have also brought about new problems, espe cially among the youth. According to a stu...For some time now, mobile phones have become indispensable and ubiquitous tools in our daily lives. Despite their convenience, they have also brought about new problems, espe cially among the youth. According to a study published in October, nearly seven out of 10 Chinese schoolchildren own at least one smartphone.展开更多
In big cities like Beijing, Shanghai and Guangzhou, trying to flag down a taxi during the morning and afternoon rush hours is a frustrating experience - passengers have to wait a long time to get one. However, if they...In big cities like Beijing, Shanghai and Guangzhou, trying to flag down a taxi during the morning and afternoon rush hours is a frustrating experience - passengers have to wait a long time to get one. However, if they use a tailored car service app on their smartphone, a car will materialize by their side within minutes. Though a little more expensive than taxis, the service is much better and so are the cars. Tailored car service apps like Kuaidi Zhuanche and Yihao Zhuanche have developed quickly in recent years.展开更多
When you think of the tremendous technological progress we have made,it’s amazing how little we have developed in other respects.We may speak insultingly of the poor old Romans because they enjoyed the orgies(狂欢;放...When you think of the tremendous technological progress we have made,it’s amazing how little we have developed in other respects.We may speak insultingly of the poor old Romans because they enjoyed the orgies(狂欢;放纵)of slaughter(屠杀)that went on in their sport fields.We may look down upon them because they mistook these goings on for entertainment.We may forgive them condescendingly(屈尊地)because they lived2,000 years ago and obviously knew no better.But are展开更多
Recently in China,most parents,when asked about the attitudes towards homework,favor homework as a necessity for practice because the college entrance examination still exists.Admittedly,homework guarantees students’...Recently in China,most parents,when asked about the attitudes towards homework,favor homework as a necessity for practice because the college entrance examination still exists.Admittedly,homework guarantees students’command of knowl edge and better prepares one for the coming tests.However,for pupils,the assigned homework to be finished during the non school hours is detrimental to individual health,family relationships,realization of schools’educational goals and societal equality.In addition,homework for kids,against its original intention in practice,can’t help kids learn efficiently and thus should be banned.This essay focuses on specific reasons in various aspects why homework should be banned.展开更多
随着电力物联网技术的快速发展,建设能源互联网具有重大意义。电力物联终端设备的识别认证是保障能源互联网安全稳定运行的基础。为实现海量电力终端设备信息高效采集与安全认证,研究提出一种面向电力物联网的RFID(radio frequency iden...随着电力物联网技术的快速发展,建设能源互联网具有重大意义。电力物联终端设备的识别认证是保障能源互联网安全稳定运行的基础。为实现海量电力终端设备信息高效采集与安全认证,研究提出一种面向电力物联网的RFID(radio frequency identification)认证方案,该方案利用RFID技术,基于国密SM3和SM4设计算法,实现了阅读器与电力设备之间的相互认证,保障了电力通信数据的传输安全,降低设备标签的计算复杂度。安全性分析表明,该方案满足不可追踪性、抗重放攻击、抗去同步攻击、抗拒绝服务攻击等安全特性,BAN逻辑分析进一步表明该方案满足相互认证性。性能分析表明,该方案在标签计算量、存储量、通信量及数据库搜索效率方面具有较好的性能优势。展开更多
The fossil shells on the sedimentary rocks were collected from The Historical Park,Ban Sap Noi Geopark,Phetchabun Province,Thailand.However,the fossils remained in this area were investigated on the characteristic spe...The fossil shells on the sedimentary rocks were collected from The Historical Park,Ban Sap Noi Geopark,Phetchabun Province,Thailand.However,the fossils remained in this area were investigated on the characteristic species only in geological studies with taxonomy for fossil age predicting.To fill up the gap of these studies,the material characterization techniques were used to study the chemical composition and structure of fossil shells I,II and III.The results clearly showed that the morphologies of all fossil shells were Brachiopod fossils with different species.The functional group and elemental composition of all fossil shells showed that the high content of calcium carbonate was a major composition.In addition,the high content of quartz indicated the silica precipitation phenomenon in all fossil shells.The element composition of cross-sectional morphology and energy dispersive spectroscope (EDS mapping) were used to confirm the presence of Si element in each zone of fossil shells.The crystal structures of all fossil shells were investigated and indicated that the calcium carbonate compound was a calcite phase and silicon dioxide compound was a quartz phase.Moreover,the crystal structure of quartz phase was used to calculate the crystallinity index.The crystallinity index values in all fossil shells indicated a well-crystallized quartz.The age of fossil shells was estimated and found to be brachiopod fossil in carboniferous period with the age of about 359.2 to 299.0 million years.展开更多
During the Spring Festival,which fell on February 3 this year,a large number of fires and injuries to people were triggered by fireworks. A new round of debate over whether to again put firework bans in
Due to their resource constraints,Internet of Things(IoT)devices require authentication mechanisms that are both secure and efficient.Elliptic curve cryptography(ECC)meets these needs by providing strong security with...Due to their resource constraints,Internet of Things(IoT)devices require authentication mechanisms that are both secure and efficient.Elliptic curve cryptography(ECC)meets these needs by providing strong security with shorter key lengths,which significantly reduces the computational overhead required for authentication algorithms.This paper introduces a novel ECC-based IoT authentication system utilizing our previously proposed efficient mapping and reverse mapping operations on elliptic curves over prime fields.By reducing reliance on costly point multiplication,the proposed algorithm significantly improves execution time,storage requirements,and communication cost across varying security levels.The proposed authentication protocol demonstrates superior performance when benchmarked against relevant ECC-based schemes,achieving reductions of up to 35.83%in communication overhead,62.51%in device-side storage consumption,and 71.96%in computational cost.The security robustness of the scheme is substantiated through formal analysis using the Automated Validation of Internet Security Protocols and Applications(AVISPA)tool and Burrows-Abadir-Needham(BAN)logic,complemented by a comprehensive informal analysis that confirms its resilience against various attack models,including impersonation,replay,and man-in-the-middle attacks.Empirical evaluation under simulated conditions demonstrates notable gains in efficiency and security.While these results indicate the protocol’s strong potential for scalable IoT deployments,further validation on real-world embedded platforms is required to confirm its applicability and robustness at scale.展开更多
After the massive earthquake in Sichuan Province in May 2008, a primary school funded by a tobacco company was set up in the quake-stricken area. On the roof of the school building stands the signboard "Sichuan T...After the massive earthquake in Sichuan Province in May 2008, a primary school funded by a tobacco company was set up in the quake-stricken area. On the roof of the school building stands the signboard "Sichuan Tobacco Hope Primary School." A slogan engraved on another board reads, "Tobacco helps your success."展开更多
In May,Chengdu’s Yintai Center became home to the Kids with Line Friends theme park,the latest branding victory of a product that isn’t even available in China.China currently has more officially licensed cafes feat...In May,Chengdu’s Yintai Center became home to the Kids with Line Friends theme park,the latest branding victory of a product that isn’t even available in China.China currently has more officially licensed cafes featuringLine Friends,the merchandising arm of Japanese-Korean messaging platform Line,than Korea and Japan combined(where Line has close to 60 million users).展开更多
The death of singer Fu Song from oral cancer on September 10 has triggered nationwide calls to ban the sale of binglang (also known as arcca or betel nut),a carcinogenic berry the 36-ycar-old was addicted to chewing.M...The death of singer Fu Song from oral cancer on September 10 has triggered nationwide calls to ban the sale of binglang (also known as arcca or betel nut),a carcinogenic berry the 36-ycar-old was addicted to chewing.Months before his death,Fu posted a video warning the public to stay away from the fruit.展开更多
文摘On July 1, 2019, the website of the National Health Commission of the People’s Republic of China issued the “Notice on printing and distributing the first batch of national key monitoring and rational drugs (chemicals and biological products)”(National Health Office Medical Letter [2019] No. 558)[1], where the third article stipulates:“Other types of physicians, after not less than one year of systematically studying Chinese medicine professional knowledge and passing the examination, in accordance with the basic principles of syndrome differentiation, can issue prescriptions for Chinese patent medicine”.
文摘The new catalogue of processing trade-banned commodities was announced recently.The announcement was executed since November 22 of 2006.The Catalogue will be adjusted according to related policies of the state.
文摘For some time now, mobile phones have become indispensable and ubiquitous tools in our daily lives. Despite their convenience, they have also brought about new problems, espe cially among the youth. According to a study published in October, nearly seven out of 10 Chinese schoolchildren own at least one smartphone.
文摘In big cities like Beijing, Shanghai and Guangzhou, trying to flag down a taxi during the morning and afternoon rush hours is a frustrating experience - passengers have to wait a long time to get one. However, if they use a tailored car service app on their smartphone, a car will materialize by their side within minutes. Though a little more expensive than taxis, the service is much better and so are the cars. Tailored car service apps like Kuaidi Zhuanche and Yihao Zhuanche have developed quickly in recent years.
文摘When you think of the tremendous technological progress we have made,it’s amazing how little we have developed in other respects.We may speak insultingly of the poor old Romans because they enjoyed the orgies(狂欢;放纵)of slaughter(屠杀)that went on in their sport fields.We may look down upon them because they mistook these goings on for entertainment.We may forgive them condescendingly(屈尊地)because they lived2,000 years ago and obviously knew no better.But are
文摘Recently in China,most parents,when asked about the attitudes towards homework,favor homework as a necessity for practice because the college entrance examination still exists.Admittedly,homework guarantees students’command of knowl edge and better prepares one for the coming tests.However,for pupils,the assigned homework to be finished during the non school hours is detrimental to individual health,family relationships,realization of schools’educational goals and societal equality.In addition,homework for kids,against its original intention in practice,can’t help kids learn efficiently and thus should be banned.This essay focuses on specific reasons in various aspects why homework should be banned.
文摘随着电力物联网技术的快速发展,建设能源互联网具有重大意义。电力物联终端设备的识别认证是保障能源互联网安全稳定运行的基础。为实现海量电力终端设备信息高效采集与安全认证,研究提出一种面向电力物联网的RFID(radio frequency identification)认证方案,该方案利用RFID技术,基于国密SM3和SM4设计算法,实现了阅读器与电力设备之间的相互认证,保障了电力通信数据的传输安全,降低设备标签的计算复杂度。安全性分析表明,该方案满足不可追踪性、抗重放攻击、抗去同步攻击、抗拒绝服务攻击等安全特性,BAN逻辑分析进一步表明该方案满足相互认证性。性能分析表明,该方案在标签计算量、存储量、通信量及数据库搜索效率方面具有较好的性能优势。
基金supported by the Science Achievement Scholarship of Thailand (SAST)the support of Office of Atom for Peace,Thailand and Thailand Institute of Nuclear Technology (a public organization) for providing facilities for some experiment in this work。
文摘The fossil shells on the sedimentary rocks were collected from The Historical Park,Ban Sap Noi Geopark,Phetchabun Province,Thailand.However,the fossils remained in this area were investigated on the characteristic species only in geological studies with taxonomy for fossil age predicting.To fill up the gap of these studies,the material characterization techniques were used to study the chemical composition and structure of fossil shells I,II and III.The results clearly showed that the morphologies of all fossil shells were Brachiopod fossils with different species.The functional group and elemental composition of all fossil shells showed that the high content of calcium carbonate was a major composition.In addition,the high content of quartz indicated the silica precipitation phenomenon in all fossil shells.The element composition of cross-sectional morphology and energy dispersive spectroscope (EDS mapping) were used to confirm the presence of Si element in each zone of fossil shells.The crystal structures of all fossil shells were investigated and indicated that the calcium carbonate compound was a calcite phase and silicon dioxide compound was a quartz phase.Moreover,the crystal structure of quartz phase was used to calculate the crystallinity index.The crystallinity index values in all fossil shells indicated a well-crystallized quartz.The age of fossil shells was estimated and found to be brachiopod fossil in carboniferous period with the age of about 359.2 to 299.0 million years.
文摘During the Spring Festival,which fell on February 3 this year,a large number of fires and injuries to people were triggered by fireworks. A new round of debate over whether to again put firework bans in
文摘Due to their resource constraints,Internet of Things(IoT)devices require authentication mechanisms that are both secure and efficient.Elliptic curve cryptography(ECC)meets these needs by providing strong security with shorter key lengths,which significantly reduces the computational overhead required for authentication algorithms.This paper introduces a novel ECC-based IoT authentication system utilizing our previously proposed efficient mapping and reverse mapping operations on elliptic curves over prime fields.By reducing reliance on costly point multiplication,the proposed algorithm significantly improves execution time,storage requirements,and communication cost across varying security levels.The proposed authentication protocol demonstrates superior performance when benchmarked against relevant ECC-based schemes,achieving reductions of up to 35.83%in communication overhead,62.51%in device-side storage consumption,and 71.96%in computational cost.The security robustness of the scheme is substantiated through formal analysis using the Automated Validation of Internet Security Protocols and Applications(AVISPA)tool and Burrows-Abadir-Needham(BAN)logic,complemented by a comprehensive informal analysis that confirms its resilience against various attack models,including impersonation,replay,and man-in-the-middle attacks.Empirical evaluation under simulated conditions demonstrates notable gains in efficiency and security.While these results indicate the protocol’s strong potential for scalable IoT deployments,further validation on real-world embedded platforms is required to confirm its applicability and robustness at scale.
文摘After the massive earthquake in Sichuan Province in May 2008, a primary school funded by a tobacco company was set up in the quake-stricken area. On the roof of the school building stands the signboard "Sichuan Tobacco Hope Primary School." A slogan engraved on another board reads, "Tobacco helps your success."
文摘In May,Chengdu’s Yintai Center became home to the Kids with Line Friends theme park,the latest branding victory of a product that isn’t even available in China.China currently has more officially licensed cafes featuringLine Friends,the merchandising arm of Japanese-Korean messaging platform Line,than Korea and Japan combined(where Line has close to 60 million users).
文摘The death of singer Fu Song from oral cancer on September 10 has triggered nationwide calls to ban the sale of binglang (also known as arcca or betel nut),a carcinogenic berry the 36-ycar-old was addicted to chewing.Months before his death,Fu posted a video warning the public to stay away from the fruit.
