Warhead power assessment of the anti-ship missile plays a vital role in determining the optimal design of missile, thus having important strategic research significance. However, in the assessment process, expert’s j...Warhead power assessment of the anti-ship missile plays a vital role in determining the optimal design of missile, thus having important strategic research significance. However, in the assessment process, expert’s judgement will directly affect the assessment accuracy. In addition,there are many criteria involved in the missile design alternatives. Some criteria with poor performance may be compensated by other criteria with excellent performance, and then it is impossible to find the truly optimal alternative. Aimed at solving these problems, this paper proposes a synthetical assessment process based on fuzzy hesitant linguistic term set and the Gained and Lost Dominance Score(GLDS) method. In order to improve the assessment accuracy of experts and solve the problem that experts generate different opinions, combined with the advantages of fuzzy hesitant sets and linguistic term sets, the double hierarchy hesitant fuzzy linguistic term sets are used in this paper to improve the accuracy of expert’s judgement. In order to effectively combine expert’s experience with the data of criteria, the evidence theory and entropy weight method are used to transfer the expert’s judgement to the weight. In order to avoid selecting defective alternative of missile design, the GLDS is used to fuse expert information and criteria information. Sensitivity analysis shows that the assessment process has sensitivity to some extent. However, when the fluctuation of expert’s assessment makes the fluctuation of θ in the range of-5% to 5%, the impact on the results is not quite conspicuous. The analysis of calculation result and comparative analysis show that the assessment process proposed in this paper is accurate enough, has great advantage in selecting the current and potential optimal alternative of missile design, and avoids the alternatives with low criteria performance that cannot be compensated by other criteria being selected.展开更多
This paper presents the theoretical studies on the propagation of optical pulses in a deviated Gaussian gained Kerr medium.Our numerical results have shown,for the first time,that the compression of optical pulse widt...This paper presents the theoretical studies on the propagation of optical pulses in a deviated Gaussian gained Kerr medium.Our numerical results have shown,for the first time,that the compression of optical pulse widths varies considerably for differently deviated Gaussian gain.展开更多
Checked by Henan Province Development and Relbrm Commission and Henan Province MunicipalFinance （）ffice, the “R ＆ I） and Industrialization of High Performance Functional Refractories for Metallurgy New Technology...Checked by Henan Province Development and Relbrm Commission and Henan Province MunicipalFinance （）ffice, the “R ＆ I） and Industrialization of High Performance Functional Refractories for Metallurgy New Technology” project declared by 1,1RR gained a special fund support on self-renovation and products structure adjustment. The project will realize the technology integration and industriali-zation of key refractories including purging component, metering nozzle and toil and belt continuous casting nozzle, etc. through building high performance functional refractories production lines for metallurgy new technology.展开更多
Recently, State Intellectual Property Office of China authorized an invention patent to a project ＂ Self- flowing Castables for Filling Back Joints of Aluminum Electrolytic Cell Side Wall＂ of Sinosteel Refractory Co...Recently, State Intellectual Property Office of China authorized an invention patent to a project ＂ Self- flowing Castables for Filling Back Joints of Aluminum Electrolytic Cell Side Wall＂ of Sinosteel Refractory Co., Ltd. This patent involves one kind of self-flowing castables for filling the joints between shell and side wall brick of aluminum electrolytic cell. The castables can prolong the service life of aluminum electrolytic cell and side wall brick,展开更多
Currently, ＂ Porous SiC Multi-phase Ceramics with Hierarchical Heterogeneities for Filtrating High Temperature Soot＂ , a project of Sinosteel LIRR, gained International S＆T Cooperation Special Funds from Ministry o...Currently, ＂ Porous SiC Multi-phase Ceramics with Hierarchical Heterogeneities for Filtrating High Temperature Soot＂ , a project of Sinosteel LIRR, gained International S＆T Cooperation Special Funds from Ministry of Science and Technology of China.展开更多
Pien Tze Huang released a notice that the Fujian Pien Tze Huang Cosmetics Co.,Ltd(hereinafter referred to as“Pien Tze Huang cosmetics”)gained the recognition from high-andnew-tech businesses and enjoyed 15%income ta...Pien Tze Huang released a notice that the Fujian Pien Tze Huang Cosmetics Co.,Ltd(hereinafter referred to as“Pien Tze Huang cosmetics”)gained the recognition from high-andnew-tech businesses and enjoyed 15%income tax discount.According to the notice,this was the another recognition upon expiration of validity of the certificate.The company was recognized as high-and-newtech business in 2008 for the first time.展开更多
Wushu,or Chinese martial arts,is set to make its Olympic debut in the Youth Olympic Games 2026 in Dakar,the first Olympic competition to be staged in Africa.Wushu,which featured at the All-Africa Youth Games in 2018,h...Wushu,or Chinese martial arts,is set to make its Olympic debut in the Youth Olympic Games 2026 in Dakar,the first Olympic competition to be staged in Africa.Wushu,which featured at the All-Africa Youth Games in 2018,has gone through a tortuous process in being accepted as an Olympic sport event.The International Wushu Federation(IWUF)first submitted applications for inclusion to the International Olympic Committee in 2001,followed by two more failed bids in 2008 and 2011.Finally,it tasted success in Africa,which is also a testament to its popularity in the continent.展开更多
In this study,with the aim of achieving a high signal-to-noise ratio(SNR)in an electron-bombarded complementary metal-oxide-semiconductor(EBCMOS)imaging chip,we analyzed the sources of noise using principles from low-...In this study,with the aim of achieving a high signal-to-noise ratio(SNR)in an electron-bombarded complementary metal-oxide-semiconductor(EBCMOS)imaging chip,we analyzed the sources of noise using principles from low-light-level imaging and semiconductor theory,and established a physical computational model that relates the electron-multiplication layer to the noise characteristics of an EBCMOS chip in a uniformly doped structure with a P-type substrate.We conducted theoretical calculations to analyze the effects on noise characteristics of the passivation layer material and thickness,P-substrate doping concentration,P-substrate thickness,incident electron energy,and substrate temperature.By comparing the characteristics of pixel noise,dark current,multiplication electron numbers,and SNR under various structures,we simulated optimized structural parameters of the device.Our simulation results showed that the noise characteristics of the device could be optimized using an Al_(2)O_(3)passivation thickness of 15 nm and substrate temperature of 260 K,and by decreasing the doping concentration and thickness of the P-type substrate and increasing the incident electron energy.The optimized SNR were 252 e/e.And the substantial impact of dark current noise,primarily governed by interfacial defects,on the overall noise characteristics of the device.This research offers theoretical support to develop EBCMOS imaging chips with high gain and SNR.展开更多
In this study,the design,analysis,manufacturing,and testing of a 3D-printed conformal microstrip array antenna for high-temperature environments is presented.3D printing technology is used to fabricate a curved cerami...In this study,the design,analysis,manufacturing,and testing of a 3D-printed conformal microstrip array antenna for high-temperature environments is presented.3D printing technology is used to fabricate a curved ceramic substrate,and laser sintering and microdroplet spraying processes are used to add the conductive metal on the curved substrate.The problems of gain loss,bandwidth reduction,and frequency shift caused by high temperatures are addressed by using a proper antenna design,with parasitic patches,slots,and metal resonant cavities.The antenna prototype is characterized by the curved substrates and the conductive metals for the power dividers,the patch,and the ground plane;its performance is examined up to a temperature of 600℃in a muffle furnace and compared with the results from the numerical analysis.The results show that the antenna can effectively function at 600℃and even higher temperatures.展开更多
Xie Yuan,born in Beijing in 1959 and a graduate of Beijing Foreign Studies University,joined the CPAFFC in 1985 and has engaged in people-to-people diplomacy ever since,serving successively as deputy director and dire...Xie Yuan,born in Beijing in 1959 and a graduate of Beijing Foreign Studies University,joined the CPAFFC in 1985 and has engaged in people-to-people diplomacy ever since,serving successively as deputy director and director of the U.S.Division,and deputy director general and director general of the Department of American and Oceanian Affairs.He worked as the First Secretary of the Embassy of the People’s Republic of China in the United States in the late 1990s.展开更多
ONE of the fundamental distinctionsof a modern society from atraditional one is that in a modernsociety every citizen enjoys his/her rightslaid down by law.Traditionally,womenwere expelled from society’s mainstream.i...ONE of the fundamental distinctionsof a modern society from atraditional one is that in a modernsociety every citizen enjoys his/her rightslaid down by law.Traditionally,womenwere expelled from society’s mainstream.influenced as it was by the dominatingConfucian ideology,one philosophy展开更多
Multilayered control of myelination:Quick,saltatory conduction of action potentials along nerve fibers requires the electrical insulation of axons by myelinating glia.In the central nervous system,this role is taken u...Multilayered control of myelination:Quick,saltatory conduction of action potentials along nerve fibers requires the electrical insulation of axons by myelinating glia.In the central nervous system,this role is taken up by oligodendrocytes.Oligodendrocytes are marked by the expression of the lineage determinants Sox10 and Olig2 and arise from oligodendrocyte precursor cells(OPCs)during embryonal stages.While the majority of OPCs differentiate into mature oligodendrocytes when nearby axonal segments require myelination,a small subpopulation of OPCs persist as a progenitor pool.Therefore,the timing of myelination and maintenance of the OPC pool both need to be precisely regulated.Different transcription factors either positively or negatively affect oligodendrocyte differentiation and maintenance of the OPC pool as components of a complex gene regulatory network(reviewed in Sock and Wegner,2021).Network activity is additionally influenced by extracellular signaling molecules that bind to receptors on the oligodendroglial cell surface and activate intracellular signaling pathways.How the receptors are linked to the network is poorly understood so far,but pivotal to understanding the overall regulation of central nervous system(CNS)myelination in response to environmental cues.Relevant insights were recently gained for Gpr37(Schmidt et al.,2024),a G-protein coupled receptor(GPCR)with known relevance in differentiating oligodendrocytes(Yang et al,2016).展开更多
Since the introduction of the dual carbon goals,countries worldwide have been actively exploring next-generation green and clean energy technologies.E-fuels have gained widespread international attention as an effecti...Since the introduction of the dual carbon goals,countries worldwide have been actively exploring next-generation green and clean energy technologies.E-fuels have gained widespread international attention as an effective supplement to the current energy system and a novel approach to reducing carbon emissions.By tracking and understanding the current status and technological advancements of e-fuels,we can better support the strategic planning of China's new energy initiatives.展开更多
Travel broadens the mind.And now travelers can broaden their minds by exploring the amazing geographical,cultural and culinary diversity that China offers,facilitated by the new visa-free transit policy.With visitors ...Travel broadens the mind.And now travelers can broaden their minds by exploring the amazing geographical,cultural and culinary diversity that China offers,facilitated by the new visa-free transit policy.With visitors from 54 countries now able to stay in China for 10 days in transit without a visa and travel further in the country,“China travel”has gained new traction.展开更多
The Resolution of the Central Committee of the Communist Party of China on Further Deepening Reform Comprehensively to Advance Chinese Modernization,which was adopted at the third plenary session of the 20th Central C...The Resolution of the Central Committee of the Communist Party of China on Further Deepening Reform Comprehensively to Advance Chinese Modernization,which was adopted at the third plenary session of the 20th Central Committee of the Communist Party of China,mentioned the promotion of the debut economy.This is the first time the debut economy has been mentioned at the central level.According to the Central Economic Work Conference that was held earlier,it is imperative to promote consumption,and actively develop the debut economy,the ice and snow economy and the silver economy,clarifying the sectors where consumption is encouraged.The debut economy ranks first,owing to the high amount of attention gained from the central government.What is the debut economy and what are its major characteristics?展开更多
Hulun Lake National Nature Reserve The Hulun Lake National Nature Reserve,located in north China’s Inner Mongolia Autonomous Region,is a vital sanctuary dedicated to protecting rare birds and the interconnected ecosy...Hulun Lake National Nature Reserve The Hulun Lake National Nature Reserve,located in north China’s Inner Mongolia Autonomous Region,is a vital sanctuary dedicated to protecting rare birds and the interconnected ecosystems of lakes,rivers,wetlands,and grasslands.Established in 1986,it gained international recognition in 2002 as both a Wetland of International Importance and a UNESCO Biosphere Reserve.展开更多
Jerched on the 18th parallel north-often called the“golden latitude”for its optimal climate and environment conditions,shared by renowned attractions like Bali in Indonesia,the Maldives,and Hawaii of the United Sta...Jerched on the 18th parallel north-often called the“golden latitude”for its optimal climate and environment conditions,shared by renowned attractions like Bali in Indonesia,the Maldives,and Hawaii of the United States—the southernmost Chinese island province of Hainan has,over the past few decades,garnered national acclaim for its thriving tourism,senior healthcare and cultural sectors.Recently,Hainan has also gained attention as a burgeoning hub for international education within China.展开更多
文摘Warhead power assessment of the anti-ship missile plays a vital role in determining the optimal design of missile, thus having important strategic research significance. However, in the assessment process, expert’s judgement will directly affect the assessment accuracy. In addition,there are many criteria involved in the missile design alternatives. Some criteria with poor performance may be compensated by other criteria with excellent performance, and then it is impossible to find the truly optimal alternative. Aimed at solving these problems, this paper proposes a synthetical assessment process based on fuzzy hesitant linguistic term set and the Gained and Lost Dominance Score(GLDS) method. In order to improve the assessment accuracy of experts and solve the problem that experts generate different opinions, combined with the advantages of fuzzy hesitant sets and linguistic term sets, the double hierarchy hesitant fuzzy linguistic term sets are used in this paper to improve the accuracy of expert’s judgement. In order to effectively combine expert’s experience with the data of criteria, the evidence theory and entropy weight method are used to transfer the expert’s judgement to the weight. In order to avoid selecting defective alternative of missile design, the GLDS is used to fuse expert information and criteria information. Sensitivity analysis shows that the assessment process has sensitivity to some extent. However, when the fluctuation of expert’s assessment makes the fluctuation of θ in the range of-5% to 5%, the impact on the results is not quite conspicuous. The analysis of calculation result and comparative analysis show that the assessment process proposed in this paper is accurate enough, has great advantage in selecting the current and potential optimal alternative of missile design, and avoids the alternatives with low criteria performance that cannot be compensated by other criteria being selected.
文摘This paper presents the theoretical studies on the propagation of optical pulses in a deviated Gaussian gained Kerr medium.Our numerical results have shown,for the first time,that the compression of optical pulse widths varies considerably for differently deviated Gaussian gain.
文摘Checked by Henan Province Development and Relbrm Commission and Henan Province MunicipalFinance （）ffice, the “R ＆ I） and Industrialization of High Performance Functional Refractories for Metallurgy New Technology” project declared by 1,1RR gained a special fund support on self-renovation and products structure adjustment. The project will realize the technology integration and industriali-zation of key refractories including purging component, metering nozzle and toil and belt continuous casting nozzle, etc. through building high performance functional refractories production lines for metallurgy new technology.
文摘Recently, State Intellectual Property Office of China authorized an invention patent to a project ＂ Self- flowing Castables for Filling Back Joints of Aluminum Electrolytic Cell Side Wall＂ of Sinosteel Refractory Co., Ltd. This patent involves one kind of self-flowing castables for filling the joints between shell and side wall brick of aluminum electrolytic cell. The castables can prolong the service life of aluminum electrolytic cell and side wall brick,
文摘Currently, ＂ Porous SiC Multi-phase Ceramics with Hierarchical Heterogeneities for Filtrating High Temperature Soot＂ , a project of Sinosteel LIRR, gained International S＆T Cooperation Special Funds from Ministry of Science and Technology of China.
文摘Pien Tze Huang released a notice that the Fujian Pien Tze Huang Cosmetics Co.,Ltd(hereinafter referred to as“Pien Tze Huang cosmetics”)gained the recognition from high-andnew-tech businesses and enjoyed 15%income tax discount.According to the notice,this was the another recognition upon expiration of validity of the certificate.The company was recognized as high-and-newtech business in 2008 for the first time.
文摘Wushu,or Chinese martial arts,is set to make its Olympic debut in the Youth Olympic Games 2026 in Dakar,the first Olympic competition to be staged in Africa.Wushu,which featured at the All-Africa Youth Games in 2018,has gone through a tortuous process in being accepted as an Olympic sport event.The International Wushu Federation(IWUF)first submitted applications for inclusion to the International Olympic Committee in 2001,followed by two more failed bids in 2008 and 2011.Finally,it tasted success in Africa,which is also a testament to its popularity in the continent.
文摘In this study,with the aim of achieving a high signal-to-noise ratio(SNR)in an electron-bombarded complementary metal-oxide-semiconductor(EBCMOS)imaging chip,we analyzed the sources of noise using principles from low-light-level imaging and semiconductor theory,and established a physical computational model that relates the electron-multiplication layer to the noise characteristics of an EBCMOS chip in a uniformly doped structure with a P-type substrate.We conducted theoretical calculations to analyze the effects on noise characteristics of the passivation layer material and thickness,P-substrate doping concentration,P-substrate thickness,incident electron energy,and substrate temperature.By comparing the characteristics of pixel noise,dark current,multiplication electron numbers,and SNR under various structures,we simulated optimized structural parameters of the device.Our simulation results showed that the noise characteristics of the device could be optimized using an Al_(2)O_(3)passivation thickness of 15 nm and substrate temperature of 260 K,and by decreasing the doping concentration and thickness of the P-type substrate and increasing the incident electron energy.The optimized SNR were 252 e/e.And the substantial impact of dark current noise,primarily governed by interfacial defects,on the overall noise characteristics of the device.This research offers theoretical support to develop EBCMOS imaging chips with high gain and SNR.
基金National Natural Science Foundation of China(No.U2241205)the Natural Science Basic Research Program of Shaanxi(Nos.2022JC-33,2023-GHZD-35,and 2024JC-ZDXM-25)+1 种基金the Fundamental Research Funds for the Central Universitiesthe National 111 Project to provide fund for conducting experiments。
文摘In this study,the design,analysis,manufacturing,and testing of a 3D-printed conformal microstrip array antenna for high-temperature environments is presented.3D printing technology is used to fabricate a curved ceramic substrate,and laser sintering and microdroplet spraying processes are used to add the conductive metal on the curved substrate.The problems of gain loss,bandwidth reduction,and frequency shift caused by high temperatures are addressed by using a proper antenna design,with parasitic patches,slots,and metal resonant cavities.The antenna prototype is characterized by the curved substrates and the conductive metals for the power dividers,the patch,and the ground plane;its performance is examined up to a temperature of 600℃in a muffle furnace and compared with the results from the numerical analysis.The results show that the antenna can effectively function at 600℃and even higher temperatures.
文摘Xie Yuan,born in Beijing in 1959 and a graduate of Beijing Foreign Studies University,joined the CPAFFC in 1985 and has engaged in people-to-people diplomacy ever since,serving successively as deputy director and director of the U.S.Division,and deputy director general and director general of the Department of American and Oceanian Affairs.He worked as the First Secretary of the Embassy of the People’s Republic of China in the United States in the late 1990s.
文摘ONE of the fundamental distinctionsof a modern society from atraditional one is that in a modernsociety every citizen enjoys his/her rightslaid down by law.Traditionally,womenwere expelled from society’s mainstream.influenced as it was by the dominatingConfucian ideology,one philosophy
基金supported by grants from the Deutsche Forschungsgemeinschaft to MW。
文摘Multilayered control of myelination:Quick,saltatory conduction of action potentials along nerve fibers requires the electrical insulation of axons by myelinating glia.In the central nervous system,this role is taken up by oligodendrocytes.Oligodendrocytes are marked by the expression of the lineage determinants Sox10 and Olig2 and arise from oligodendrocyte precursor cells(OPCs)during embryonal stages.While the majority of OPCs differentiate into mature oligodendrocytes when nearby axonal segments require myelination,a small subpopulation of OPCs persist as a progenitor pool.Therefore,the timing of myelination and maintenance of the OPC pool both need to be precisely regulated.Different transcription factors either positively or negatively affect oligodendrocyte differentiation and maintenance of the OPC pool as components of a complex gene regulatory network(reviewed in Sock and Wegner,2021).Network activity is additionally influenced by extracellular signaling molecules that bind to receptors on the oligodendroglial cell surface and activate intracellular signaling pathways.How the receptors are linked to the network is poorly understood so far,but pivotal to understanding the overall regulation of central nervous system(CNS)myelination in response to environmental cues.Relevant insights were recently gained for Gpr37(Schmidt et al.,2024),a G-protein coupled receptor(GPCR)with known relevance in differentiating oligodendrocytes(Yang et al,2016).
基金The study on regeneration of invalid amine solvent(RISE2023KY13)。
文摘Since the introduction of the dual carbon goals,countries worldwide have been actively exploring next-generation green and clean energy technologies.E-fuels have gained widespread international attention as an effective supplement to the current energy system and a novel approach to reducing carbon emissions.By tracking and understanding the current status and technological advancements of e-fuels,we can better support the strategic planning of China's new energy initiatives.
文摘Travel broadens the mind.And now travelers can broaden their minds by exploring the amazing geographical,cultural and culinary diversity that China offers,facilitated by the new visa-free transit policy.With visitors from 54 countries now able to stay in China for 10 days in transit without a visa and travel further in the country,“China travel”has gained new traction.
文摘The Resolution of the Central Committee of the Communist Party of China on Further Deepening Reform Comprehensively to Advance Chinese Modernization,which was adopted at the third plenary session of the 20th Central Committee of the Communist Party of China,mentioned the promotion of the debut economy.This is the first time the debut economy has been mentioned at the central level.According to the Central Economic Work Conference that was held earlier,it is imperative to promote consumption,and actively develop the debut economy,the ice and snow economy and the silver economy,clarifying the sectors where consumption is encouraged.The debut economy ranks first,owing to the high amount of attention gained from the central government.What is the debut economy and what are its major characteristics?
文摘Hulun Lake National Nature Reserve The Hulun Lake National Nature Reserve,located in north China’s Inner Mongolia Autonomous Region,is a vital sanctuary dedicated to protecting rare birds and the interconnected ecosystems of lakes,rivers,wetlands,and grasslands.Established in 1986,it gained international recognition in 2002 as both a Wetland of International Importance and a UNESCO Biosphere Reserve.
文摘Jerched on the 18th parallel north-often called the“golden latitude”for its optimal climate and environment conditions,shared by renowned attractions like Bali in Indonesia,the Maldives,and Hawaii of the United States—the southernmost Chinese island province of Hainan has,over the past few decades,garnered national acclaim for its thriving tourism,senior healthcare and cultural sectors.Recently,Hainan has also gained attention as a burgeoning hub for international education within China.
