Effect of thermal annealing on the upgraded metallurgical grade（UMG）-Si was investigated under different conditions.The dislocation,grain boundaries and preferred growth orientation of Si ingot were characterized by...Effect of thermal annealing on the upgraded metallurgical grade（UMG）-Si was investigated under different conditions.The dislocation,grain boundaries and preferred growth orientation of Si ingot were characterized by optical microscopy,electron back scattering diffraction（EBSD） and X-ray diffractometry（XRD）,respectively.The arrange order of dislocation density of Si ingot is from the lowest in the middle to the lower in the bottom and low in the top before and after annealing.And it decreases gradually with increase of the annealing temperature.The number of small angle grain boundaries declines gradually until disappears whereas the proportion of coincidence site lattice（CSL） grain boundaries increases firstly and then decreases.The twin boundary Σ3 reaches the highest proportion of 28% after annealing at 1 200 ℃ for 3 h.Furthermore,the crystal grains in different positions gain the best preferred growth orientation,which can promote the following machining of Si ingot and the conversion efficiency of solar cells.展开更多
The transmitting of Chinese culture in the intercultural communication is of great importance for English learners in China.English majors at newly upgraded universities are weak in their abilities to express Chinese ...The transmitting of Chinese culture in the intercultural communication is of great importance for English learners in China.English majors at newly upgraded universities are weak in their abilities to express Chinese culture in English and transmit Chinese culture.To find measures for the problems,some necessary changes in the syllabus,textbooks,testing and curriculum are suggested,compiling of a dictionary for the standard of Chinese culture items in English is discussed,and the roles of teachers,students and English Corner in the cultivation of the abilities of English majors' to express Chinese culture in English at newly upgraded universities are analyzed.展开更多
A direct production method of high-strength titanium alloy from upgraded titania slag(UGS)was developed.First,UGS was reduced into alloy powder with 1.3 wt.%oxygen using magnesium powder.Subsequently,the alloy powder ...A direct production method of high-strength titanium alloy from upgraded titania slag(UGS)was developed.First,UGS was reduced into alloy powder with 1.3 wt.%oxygen using magnesium powder.Subsequently,the alloy powder was compacted at 600 MPa to produce a pellet.Lastly,the pellet was sintered to produce titanium alloy.The reduced powder was characterized,and the effect arising from the sintering temperature on the sintered density,compressive strength,microstructure,and hardness of the alloys was studied.The results showed that the density tended to increase with the temperature increasing from 900 to 1200℃,whereas the porosity decreased.A significant sintering densification was achieved at the temperature above 1100℃(98.65%at 1100℃ and 99.41%at 1200℃).At 1100℃,the hardness and compressive strength reached the maximal values of the alloy,HV 655.7 and 1563 MPa,respectively.展开更多
Recycling graphite anode from spent lithium-ion batteries(SLIBs)is regarded as a crucial approach to promoting sustainable energy storage industry.However,the recycled graphite(RG)generally presents degraded structure...Recycling graphite anode from spent lithium-ion batteries(SLIBs)is regarded as a crucial approach to promoting sustainable energy storage industry.However,the recycled graphite(RG)generally presents degraded structure and performance.Herein,the residual fluoride self-activated effect is proposed for the upgraded utilization of RG.Simple and low-energy water immersion treatment not only widens the interlayer spacing,but also retains appropriate fluoride on the surface of RG.Theoretical analysis and experiments demonstrate that the residual fluoride can optimize Li~+migration and deposition kinetics,resulting in better Li~+intercalation/deintercalation in the interlayer and more stable Li metal plating/stripping on the surface of RG,As a result,the designed LFP||RG full cells achieve ultrahigh reversibility(~100%Coulombic efficiency),high capacity retention(67%after 200 cycles,0.85 N/P ratio),and commendable adaptability(stable cycling without short-circuiting,0.15 N/P ratio).The energy density is improved from 334 Wh kg^(-1)of 1.1 N/P ratio to 367 Wh kg^(-1)of 0.85 N/P ratio(total mass based on cathode and anode).The exploration of RG by residual fluoride self-activated effect achieves upgraded utilization beyond fresh commercial graphite and highlights a new strategy for efficient reuse of SLIBs.展开更多
The 2019 CIFTIS(China International Fair for Trade in Service)themed on 'openness,innovation,wisdom and integration' has recently closed down in Beijing.This year CIFTIS has been upgraded to national exhibitio...The 2019 CIFTIS(China International Fair for Trade in Service)themed on 'openness,innovation,wisdom and integration' has recently closed down in Beijing.This year CIFTIS has been upgraded to national exhibition and witnessed the signing of 440 project contracts with the total contract value of USD 105.06billion,a record high in the event history.There are 134 projects in foreign countries with total contract value of USD 17.55 billion.展开更多
This paper reviews how we have designed the upgraded poloidal field control system on HT-7 superconducting Tokmak by applying advanced computer technologies and Multivariable decoupling control theory. This paper emph...This paper reviews how we have designed the upgraded poloidal field control system on HT-7 superconducting Tokmak by applying advanced computer technologies and Multivariable decoupling control theory. This paper emphasizes on designing the method of the control system,including system components and their functions.展开更多
During April 2-4,Chinar ASEAN Expo held an exposition in of Bangkok of Thailand,which was the first time for China-ASEAN Expo to hold expositions abroad ever since the beginning of China-ASEAN Expo was held 11 years a...During April 2-4,Chinar ASEAN Expo held an exposition in of Bangkok of Thailand,which was the first time for China-ASEAN Expo to hold expositions abroad ever since the beginning of China-ASEAN Expo was held 11 years ago.Since the year of 2004,China-展开更多
At present, the breadth, depth and activeness of Sino-African cooperation comes to a level ,which has never been seen before. Africa not only provides space for the extension of the Belt and Road Initiative,
Recently the CAS Qingdao Institute of Bioenergy and Processes in collaboration with the Leibniz Universit?t Hannover,Forschungszentrum Jülich and Bayer AG has made attempts to carry out methane aromatization reac...Recently the CAS Qingdao Institute of Bioenergy and Processes in collaboration with the Leibniz Universit?t Hannover,Forschungszentrum Jülich and Bayer AG has made attempts to carry out methane aromatization reaction in an oxygen-permeable membrane reactor to展开更多
During the Eighth Five-Year Plan period, (1991-95), China’s pen industry maintained sustained, rapid, stable and sound development with the further promotion of product quality and grade in production, and its techno...During the Eighth Five-Year Plan period, (1991-95), China’s pen industry maintained sustained, rapid, stable and sound development with the further promotion of product quality and grade in production, and its technological advancement. At the same time, new varieties of products and more patterns and specifications were developed. The industry also further developed its business ties with clients abroad and ex-展开更多
Teaching and scientific research are the two carriages that drive colleges and universities forward, and military academies are no exception. Teaching is the most routine job, and scientific research is both an annual...Teaching and scientific research are the two carriages that drive colleges and universities forward, and military academies are no exception. Teaching is the most routine job, and scientific research is both an annual task and a career pursuit. At present, newly upgraded military academies pay more attention to teaching, but do not pay enough attention to scientific research. To establish the concept of scientific research serving teaching is to achieve the professional development of teachers, improve the quality of talent training, enhance the comprehensive strength of the newly upgraded military academy, and realize the needs of military-civilian integration. At present, faculty members of newly upgraded military academies generally have problems such as weak scientific research awareness, lack of scientific research capabilities, insufficient time for scientific research, poor collaboration of scientific research teams, and random scientific research behaviors. On the basis of creating a good scientific research atmosphere for faculty and improving the scientific research management system, the faculty themselves should also change their ideology, strengthen training and learning, establish a sense of cooperation and strive to move toward a scientific research conscious path.展开更多
Ten governmental organizations recently issued a joint circular (No.762-2006, State Development & Reform Commission) to guide Chinese textile growth in the next five years (2006-2010). The circular, seriously take...Ten governmental organizations recently issued a joint circular (No.762-2006, State Development & Reform Commission) to guide Chinese textile growth in the next five years (2006-2010). The circular, seriously taken as guideline policy, is given out amid aggravating factors for resources, environment, trade disputes, structural problems and other challenging issues that Chinese textile industry is supposed to address in展开更多
New-generation synchrotron light sources are being designed and operated worldwide to provide brighter radiation by reducing the beam emittance to X-ray diffraction limits.Intra-beam scattering(IBS)and Touschek scatte...New-generation synchrotron light sources are being designed and operated worldwide to provide brighter radiation by reducing the beam emittance to X-ray diffraction limits.Intra-beam scattering(IBS)and Touschek scattering in such facilities are significant and require attention because of their ultra-low emittance.Therefore,cure strategies need to be carefully studied to obtain highquality photon beams.For the Shanghai Synchrotron Radiation Facility Upgrade(SSRF-U),a candidate lattice of the storage ring,reaching the soft X-ray diffraction limit,was designed and presented for the first time in this study.The emittance growth and beam lifetime in the SSRF-U storage ring were studied using particle simulations for a series of different machine configurations.The gains with RF frequencies of 100 MHz and 500 MHz were compared.Along with a better filling pattern,a more suitable RF frequency was adopted in the SSRF-U.The variations in the equilibrium beam emittance with beam coupling and bunch-lengthening were identified using simulations.Optimal beam coupling and required bunch-lengthening for the SSRF-U storage ring were thus determined.The fitness of the beam energy in the SSRF-U was subsequently assessed using the obtained parameters.Additionally,the Touschek scattering and beam lifetime were calculated,and an acceptable total beam lifetime was obtained.展开更多
The right ventricular pacing （RVP） is the standard treat- ment for patients with severe bradyarrhythmias; however, it may cause and exacerbate heart failure symptoms in a long run under some circumstances.{1] In fac...The right ventricular pacing （RVP） is the standard treat- ment for patients with severe bradyarrhythmias; however, it may cause and exacerbate heart failure symptoms in a long run under some circumstances.{1] In fact, significant left ventricular （LV） systolic dysfimction and symptomatic heart failure （HF） is commonly found in patient population with pacemaker implantations.展开更多
"If the year of 2015 is’laying a foundation and establishing the framework’for the CCPIT,this year is for’yielding results and upgrading’,"said Jiang Zengwei,Chairman of China Council for the Promotion o..."If the year of 2015 is’laying a foundation and establishing the framework’for the CCPIT,this year is for’yielding results and upgrading’,"said Jiang Zengwei,Chairman of China Council for the Promotion of International Trade(CCPIT)at 2015 CCPIT Summary Conference recently.In the past year,bringing its identity advantage("serving both as government official and as general public")and its channel advantage for contacting the domestic and展开更多
Since the 1990s of last century, China's tertiary education has gradually occupied half of the higher education field. As a special educational phenomenon at the present stage in our country, upgrading from a juni...Since the 1990s of last century, China's tertiary education has gradually occupied half of the higher education field. As a special educational phenomenon at the present stage in our country, upgrading from a junior high school to a senior high school meets the needs of social progress and economic development in our country. It also embodies the people-oriented concept and meets people's needs for higher level and higher quality education. This education not only breaks the status quo of life-long entrance examination system, but also provides more choices for examinees and parents. It also brings opportunities and challenges to the undergraduate universities that accept the students. This paper takes the current education situation of engineering management major students in private universities as the research object, finds out the existing problems in the education of the students who have graduated from colleges and puts forward the corresponding countermeasures in order to achieve better teaching effect.展开更多
The next-generation RAN,known as Open Radio Access Network(ORAN),allows for several advantages,including cost-effectiveness,network flexibility,and interoperability.Now ORAN applications,utilising machine learning(ML)...The next-generation RAN,known as Open Radio Access Network(ORAN),allows for several advantages,including cost-effectiveness,network flexibility,and interoperability.Now ORAN applications,utilising machine learning(ML)and artificial intelligence(AI)techniques,have become standard practice.The need for Federated Learning(FL)for ML model training in ORAN environments is heightened by the modularised structure of the ORAN architecture and the shortcomings of conventional ML techniques.However,the traditional plaintext model update sharing of FL in multi-BS contexts is susceptible to privacy violations such as deep-leakage gradient assaults and inference.Therefore,this research presents a novel blockchain-assisted improved cryptographic privacy-preserving federated learning(BICPPFL)model,with the help of ORAN,to safely carry out federated learning and protect privacy.This model improves on the conventional masking technique for sharing model parameters by adding new characteristics.These features include the choice of distributed aggregators,validation for final model aggregation,and individual validation for BSs.To manage the security and privacy of FL processes,a combined homomorphic proxy-reencryption(HPReE)and lattice-cryptographic method(HPReEL)has been used.The upgraded delegated proof of stake(Up-DPoS)consensus protocol,which will provide quick validation of model exchanges and protect against malicious attacks,is employed for effective consensus across blockchain nodes.Without sacrificing performance metrics,the BICPPFL model strengthens privacy and adds security layers while facilitating the transfer of sensitive data across several BSs.The framework is deployed on top of a Hyperledger Fabric blockchain to evaluate its effectiveness.The experimental findings prove the reliability and privacy-preserving capability of the BICPPFL model.展开更多
The national consumer goods trade-in subsidy program has been a focal point for discussion among Chinese consumers in recent years.The program,which covers home appliances,digital products and vehicles,is part of Chin...The national consumer goods trade-in subsidy program has been a focal point for discussion among Chinese consumers in recent years.The program,which covers home appliances,digital products and vehicles,is part of China's stimulus package launched in 2024,which also includes incentives for large-scale equipment upgrades.展开更多
On a recent visit to the Guifeng scenic area, located in Shangrao City of east China＇s Jiangxi Province, local resident Ren Yan was most impressed by something other than the natural environ- ment. ＂Public lavatorie...On a recent visit to the Guifeng scenic area, located in Shangrao City of east China＇s Jiangxi Province, local resident Ren Yan was most impressed by something other than the natural environ- ment. ＂Public lavatories in Guifeng are quite something,＂ Ren exclaimed. In the past, the scenic area＇s public lav- atories were not only dirty and smelly, but also few and far between, so tourists had to wait a long time for their turn. Today, the area is equipped with 13 public Ioos, and every one of them is renovated and upgraded so that they are not only clean and convenient, but also display distinctive local features.展开更多
The infrastructure investment scale of the Ministry of Railways for 2012 has been upgraded from the 406 billion yuan at the beginning of the year to 516 billion yuan. The constant upgrading of investment scale means r...The infrastructure investment scale of the Ministry of Railways for 2012 has been upgraded from the 406 billion yuan at the beginning of the year to 516 billion yuan. The constant upgrading of investment scale means railway construction investment will be increased in the second half of the year,展开更多
基金Project(SKL2009-8)supported by the State Key Laboratory of Silicon Materials,Zhejiang University,ChinaProject(NCET-07-0387)supported by the New Century Excellent Researcher Award Program from Ministry of Education of China
文摘Effect of thermal annealing on the upgraded metallurgical grade（UMG）-Si was investigated under different conditions.The dislocation,grain boundaries and preferred growth orientation of Si ingot were characterized by optical microscopy,electron back scattering diffraction（EBSD） and X-ray diffractometry（XRD）,respectively.The arrange order of dislocation density of Si ingot is from the lowest in the middle to the lower in the bottom and low in the top before and after annealing.And it decreases gradually with increase of the annealing temperature.The number of small angle grain boundaries declines gradually until disappears whereas the proportion of coincidence site lattice（CSL） grain boundaries increases firstly and then decreases.The twin boundary Σ3 reaches the highest proportion of 28% after annealing at 1 200 ℃ for 3 h.Furthermore,the crystal grains in different positions gain the best preferred growth orientation,which can promote the following machining of Si ingot and the conversion efficiency of solar cells.
文摘The transmitting of Chinese culture in the intercultural communication is of great importance for English learners in China.English majors at newly upgraded universities are weak in their abilities to express Chinese culture in English and transmit Chinese culture.To find measures for the problems,some necessary changes in the syllabus,textbooks,testing and curriculum are suggested,compiling of a dictionary for the standard of Chinese culture items in English is discussed,and the roles of teachers,students and English Corner in the cultivation of the abilities of English majors' to express Chinese culture in English at newly upgraded universities are analyzed.
基金the National Natural Science Foundation of China(No.52004342)the Innovation-Driven Project of Central South University,China(No.150240015)the Natural Science Fund for Outstanding Young Scholar of Hunan Province,China(No.2021JJ20065).
文摘A direct production method of high-strength titanium alloy from upgraded titania slag(UGS)was developed.First,UGS was reduced into alloy powder with 1.3 wt.%oxygen using magnesium powder.Subsequently,the alloy powder was compacted at 600 MPa to produce a pellet.Lastly,the pellet was sintered to produce titanium alloy.The reduced powder was characterized,and the effect arising from the sintering temperature on the sintered density,compressive strength,microstructure,and hardness of the alloys was studied.The results showed that the density tended to increase with the temperature increasing from 900 to 1200℃,whereas the porosity decreased.A significant sintering densification was achieved at the temperature above 1100℃(98.65%at 1100℃ and 99.41%at 1200℃).At 1100℃,the hardness and compressive strength reached the maximal values of the alloy,HV 655.7 and 1563 MPa,respectively.
基金the National Natural Science Foundation of China(21975212)the Industry Leading Key Projects of Fujian Province(2022H0057)the High-level talent start-up Foundation of Xiamen Institute of Technology for financial support。
文摘Recycling graphite anode from spent lithium-ion batteries(SLIBs)is regarded as a crucial approach to promoting sustainable energy storage industry.However,the recycled graphite(RG)generally presents degraded structure and performance.Herein,the residual fluoride self-activated effect is proposed for the upgraded utilization of RG.Simple and low-energy water immersion treatment not only widens the interlayer spacing,but also retains appropriate fluoride on the surface of RG.Theoretical analysis and experiments demonstrate that the residual fluoride can optimize Li~+migration and deposition kinetics,resulting in better Li~+intercalation/deintercalation in the interlayer and more stable Li metal plating/stripping on the surface of RG,As a result,the designed LFP||RG full cells achieve ultrahigh reversibility(~100%Coulombic efficiency),high capacity retention(67%after 200 cycles,0.85 N/P ratio),and commendable adaptability(stable cycling without short-circuiting,0.15 N/P ratio).The energy density is improved from 334 Wh kg^(-1)of 1.1 N/P ratio to 367 Wh kg^(-1)of 0.85 N/P ratio(total mass based on cathode and anode).The exploration of RG by residual fluoride self-activated effect achieves upgraded utilization beyond fresh commercial graphite and highlights a new strategy for efficient reuse of SLIBs.
文摘The 2019 CIFTIS(China International Fair for Trade in Service)themed on 'openness,innovation,wisdom and integration' has recently closed down in Beijing.This year CIFTIS has been upgraded to national exhibition and witnessed the signing of 440 project contracts with the total contract value of USD 105.06billion,a record high in the event history.There are 134 projects in foreign countries with total contract value of USD 17.55 billion.
文摘This paper reviews how we have designed the upgraded poloidal field control system on HT-7 superconducting Tokmak by applying advanced computer technologies and Multivariable decoupling control theory. This paper emphasizes on designing the method of the control system,including system components and their functions.
文摘During April 2-4,Chinar ASEAN Expo held an exposition in of Bangkok of Thailand,which was the first time for China-ASEAN Expo to hold expositions abroad ever since the beginning of China-ASEAN Expo was held 11 years ago.Since the year of 2004,China-
文摘At present, the breadth, depth and activeness of Sino-African cooperation comes to a level ,which has never been seen before. Africa not only provides space for the extension of the Belt and Road Initiative,
文摘Recently the CAS Qingdao Institute of Bioenergy and Processes in collaboration with the Leibniz Universit?t Hannover,Forschungszentrum Jülich and Bayer AG has made attempts to carry out methane aromatization reaction in an oxygen-permeable membrane reactor to
文摘During the Eighth Five-Year Plan period, (1991-95), China’s pen industry maintained sustained, rapid, stable and sound development with the further promotion of product quality and grade in production, and its technological advancement. At the same time, new varieties of products and more patterns and specifications were developed. The industry also further developed its business ties with clients abroad and ex-
文摘Teaching and scientific research are the two carriages that drive colleges and universities forward, and military academies are no exception. Teaching is the most routine job, and scientific research is both an annual task and a career pursuit. At present, newly upgraded military academies pay more attention to teaching, but do not pay enough attention to scientific research. To establish the concept of scientific research serving teaching is to achieve the professional development of teachers, improve the quality of talent training, enhance the comprehensive strength of the newly upgraded military academy, and realize the needs of military-civilian integration. At present, faculty members of newly upgraded military academies generally have problems such as weak scientific research awareness, lack of scientific research capabilities, insufficient time for scientific research, poor collaboration of scientific research teams, and random scientific research behaviors. On the basis of creating a good scientific research atmosphere for faculty and improving the scientific research management system, the faculty themselves should also change their ideology, strengthen training and learning, establish a sense of cooperation and strive to move toward a scientific research conscious path.
文摘Ten governmental organizations recently issued a joint circular (No.762-2006, State Development & Reform Commission) to guide Chinese textile growth in the next five years (2006-2010). The circular, seriously taken as guideline policy, is given out amid aggravating factors for resources, environment, trade disputes, structural problems and other challenging issues that Chinese textile industry is supposed to address in
基金The authors would like to thank Dr.Na Wang and Sai-Ke Tian in IHEP for their useful discussions.
文摘New-generation synchrotron light sources are being designed and operated worldwide to provide brighter radiation by reducing the beam emittance to X-ray diffraction limits.Intra-beam scattering(IBS)and Touschek scattering in such facilities are significant and require attention because of their ultra-low emittance.Therefore,cure strategies need to be carefully studied to obtain highquality photon beams.For the Shanghai Synchrotron Radiation Facility Upgrade(SSRF-U),a candidate lattice of the storage ring,reaching the soft X-ray diffraction limit,was designed and presented for the first time in this study.The emittance growth and beam lifetime in the SSRF-U storage ring were studied using particle simulations for a series of different machine configurations.The gains with RF frequencies of 100 MHz and 500 MHz were compared.Along with a better filling pattern,a more suitable RF frequency was adopted in the SSRF-U.The variations in the equilibrium beam emittance with beam coupling and bunch-lengthening were identified using simulations.Optimal beam coupling and required bunch-lengthening for the SSRF-U storage ring were thus determined.The fitness of the beam energy in the SSRF-U was subsequently assessed using the obtained parameters.Additionally,the Touschek scattering and beam lifetime were calculated,and an acceptable total beam lifetime was obtained.
文摘The right ventricular pacing （RVP） is the standard treat- ment for patients with severe bradyarrhythmias; however, it may cause and exacerbate heart failure symptoms in a long run under some circumstances.{1] In fact, significant left ventricular （LV） systolic dysfimction and symptomatic heart failure （HF） is commonly found in patient population with pacemaker implantations.
文摘"If the year of 2015 is’laying a foundation and establishing the framework’for the CCPIT,this year is for’yielding results and upgrading’,"said Jiang Zengwei,Chairman of China Council for the Promotion of International Trade(CCPIT)at 2015 CCPIT Summary Conference recently.In the past year,bringing its identity advantage("serving both as government official and as general public")and its channel advantage for contacting the domestic and
文摘Since the 1990s of last century, China's tertiary education has gradually occupied half of the higher education field. As a special educational phenomenon at the present stage in our country, upgrading from a junior high school to a senior high school meets the needs of social progress and economic development in our country. It also embodies the people-oriented concept and meets people's needs for higher level and higher quality education. This education not only breaks the status quo of life-long entrance examination system, but also provides more choices for examinees and parents. It also brings opportunities and challenges to the undergraduate universities that accept the students. This paper takes the current education situation of engineering management major students in private universities as the research object, finds out the existing problems in the education of the students who have graduated from colleges and puts forward the corresponding countermeasures in order to achieve better teaching effect.
文摘The next-generation RAN,known as Open Radio Access Network(ORAN),allows for several advantages,including cost-effectiveness,network flexibility,and interoperability.Now ORAN applications,utilising machine learning(ML)and artificial intelligence(AI)techniques,have become standard practice.The need for Federated Learning(FL)for ML model training in ORAN environments is heightened by the modularised structure of the ORAN architecture and the shortcomings of conventional ML techniques.However,the traditional plaintext model update sharing of FL in multi-BS contexts is susceptible to privacy violations such as deep-leakage gradient assaults and inference.Therefore,this research presents a novel blockchain-assisted improved cryptographic privacy-preserving federated learning(BICPPFL)model,with the help of ORAN,to safely carry out federated learning and protect privacy.This model improves on the conventional masking technique for sharing model parameters by adding new characteristics.These features include the choice of distributed aggregators,validation for final model aggregation,and individual validation for BSs.To manage the security and privacy of FL processes,a combined homomorphic proxy-reencryption(HPReE)and lattice-cryptographic method(HPReEL)has been used.The upgraded delegated proof of stake(Up-DPoS)consensus protocol,which will provide quick validation of model exchanges and protect against malicious attacks,is employed for effective consensus across blockchain nodes.Without sacrificing performance metrics,the BICPPFL model strengthens privacy and adds security layers while facilitating the transfer of sensitive data across several BSs.The framework is deployed on top of a Hyperledger Fabric blockchain to evaluate its effectiveness.The experimental findings prove the reliability and privacy-preserving capability of the BICPPFL model.
文摘The national consumer goods trade-in subsidy program has been a focal point for discussion among Chinese consumers in recent years.The program,which covers home appliances,digital products and vehicles,is part of China's stimulus package launched in 2024,which also includes incentives for large-scale equipment upgrades.
文摘On a recent visit to the Guifeng scenic area, located in Shangrao City of east China＇s Jiangxi Province, local resident Ren Yan was most impressed by something other than the natural environ- ment. ＂Public lavatories in Guifeng are quite something,＂ Ren exclaimed. In the past, the scenic area＇s public lav- atories were not only dirty and smelly, but also few and far between, so tourists had to wait a long time for their turn. Today, the area is equipped with 13 public Ioos, and every one of them is renovated and upgraded so that they are not only clean and convenient, but also display distinctive local features.
文摘The infrastructure investment scale of the Ministry of Railways for 2012 has been upgraded from the 406 billion yuan at the beginning of the year to 516 billion yuan. The constant upgrading of investment scale means railway construction investment will be increased in the second half of the year,
