The Ni-B-Oδ and Ni-B-Zr-Oδ catalysts were prepared by the method of chemical reduction, and the deep removal of CO by selective methanation from the reformed fuels was performed over the as-prepared catalysts. The r...The Ni-B-Oδ and Ni-B-Zr-Oδ catalysts were prepared by the method of chemical reduction, and the deep removal of CO by selective methanation from the reformed fuels was performed over the as-prepared catalysts. The results showed that zirconium strongly influenced the activity and selectivity of the Ni-B-Zr-Oδ catalysts. Over the Ni-B-Oδ catalyst, the highest CO conversion obtained was only 24.32% under the experi-mental conditions studied. However, over the Ni-B-Zr-Oδ catalysts, the CO methanation conversion was higher than 90% when the temperature was increased to 220℃. Additionally, it was found that the Ni/B mole ratio also affected the performance of the Ni-B-Zr-Oδ catalysts. With the increase of the Ni/B mole ratio from 1.8 to 2.2, the CO methanation activity of the catalyst was improved. But when the Ni/B mole ratio was higher than 2.2, the performance of the catalyst for CO selective methanation decreased instead. Among all the catalysts, the Ni29B13Zr58Oδ catalyst investigated here exhibited the highest catalytic performance for the CO selective methanation, which was capable of reducing the CO outlet concentration to less than 40 ppm from the feed gases stream in the temperature range of 230-250℃, while the CO2 conversion was kept below 8% all along. Characterization of the Ni-B-Oδ and Ni-B-Zr-Oδ catalysts was provided by XRD, SEM, DSC, and XPS.展开更多
[Objective] The paper was to study the effect of agricultural land reform on cotton cultivation in Manasi, XinJiang based on reformed farmers. [Method] Rural land contract management rights transfer of rural household...[Objective] The paper was to study the effect of agricultural land reform on cotton cultivation in Manasi, XinJiang based on reformed farmers. [Method] Rural land contract management rights transfer of rural household in Manasi County of Xinjiang Changji Hui Autonomous Prefecture were surveyed in August, 2011. Based on the survey data, the paper analyzed the effect of agricultural land reform on cotton culti- vation from 2 aspects of cotton cultivation scale and benefit, and also studied the willingness of farmers for agricultural land reform. [Result] The main obstacle for farmer＇s unwillingness of continuous land reform for cotton cultivation was that the cotton cultivation risk was big, and the benefit could not be guaranteed. The agricul- tural land area per household increased after agricultural land reform, which increased the modernization progress of cotton cultivation. It also increased the benefit of cotton cultivation, and further affected the benefit of cotton cultivation. [Conclusion] The study provided reference for improving scale cotton cultivation efficacy in Xinjiang.展开更多
The content items to be offset of the reformed debt in consolidated financial statement of the operation occurred inside the group of enterprise is different from other general inner trades such as the sale of the sto...The content items to be offset of the reformed debt in consolidated financial statement of the operation occurred inside the group of enterprise is different from other general inner trades such as the sale of the stock or fixed asset, etc.. Through the reformed debt, the debtor and creditor have erased debt and credit on their bookkeeping. What to be offset are the capital reserve and the changed value of the asset. In this paper, the offsetting method of such items will be discussed.展开更多
Deism is one of the branches of radical Enlightenment which states that God creates the World, but he does not intervene into its operation. Theological dogmas are completely useless because these rules are not necess...Deism is one of the branches of radical Enlightenment which states that God creates the World, but he does not intervene into its operation. Theological dogmas are completely useless because these rules are not necessary for the prosperity of people. These ideas were very dangerous to Christianity; however, they were widespread in many parts of Europe in the 18th century. The Reformed Diocese of Bekes was located in the south eastern area of the Kingdom of Hungary, whose followers practised an essentially rural way of life; therefore, they hardly read any scientific and philosophical works. In spite of this fact, the spread of the ideas characteristic of deism can be observed in numerous dioceses. The reception of deism in southeast Hungary can be witnessed not in the traditional intellectual documents （school curriculum, translations, and philosophical treatises）, but in the documents of the ecclesiastical government： Church attendance records, documents of the proceedings of the ecclesiastical courts. With the detailed analysis of the ecclesiastical administration documents of the Reformed Church, this study investigates how folk religion relates to deism and the criticism of religion by the radical Enlightenment.展开更多
Since 2015, a “reform storm” of Environmental Impact Assessment (EIA) opened up in China. This study tries to answer the question of whether these reforms improve the effectiveness of EIA. First, we elaborate on the...Since 2015, a “reform storm” of Environmental Impact Assessment (EIA) opened up in China. This study tries to answer the question of whether these reforms improve the effectiveness of EIA. First, we elaborate on the reforms along with three well-acknowledged components, including EIA legislation, administration, and process. Then, evaluate the reformed EIA system against revised Ahmad and Wood’s criteria. The results demonstrate that the revised laws and regulations are more stringent than the old versions. The EIA process is simplified, and its coordination with the pollutant discharge permit system is promoted. The interim and post-event supervision is currently more robust and the penalties are more severe than before. However, the hierarchical position of the Environmental Protection Law is not high enough and the coordination of different government departments is still challenging. In summary, despite the problems occurring at the initial phase of reforms, the effectiveness of the EIA system has largely been improved.展开更多
The intact volcanic edifice had been formed and finalized during the depositional stage of Mesozoic Yixian Formation in the Bohai Sea.The residual body of the intact volcanic edifice after reformation was defined as t...The intact volcanic edifice had been formed and finalized during the depositional stage of Mesozoic Yixian Formation in the Bohai Sea.The residual body of the intact volcanic edifice after reformation was defined as the basement reformed volcanic edifice.Based on drilling,seismic,well logging and microscopic data in the study area,characteristics of the basement reformed volcanic edifice were well discussed,and its control on oil and gas was also investigated.Results showed that the basement reformed volcanic edifice was jointly controlled by magmatic property,paleo-geomorphology and late reformation,and the late fault cutting and differential denudation were major reformation ways of the volcanic edifice;strong and weak volcanic eruption patterns developed in the study belonged to the invertedsequence eruption,and the explosive facies and the intermediate-acidic or acidic effusive facies were the favorable reservoir facies;weathering,cycles and period boundaries controlled vertical distribution of high-quality lithofacies,and coupling between each periodic interface at different levels and residual high-quality lithofacies was the key to oil and gas enrichment.Major exploration targets of volcanic rocks were to find periodic interfaces in the volcanic edifice with the residual high-quality lithofacies within 150 m from the weathering crust or eruption surface.展开更多
Under the backdrop of“Carbon Peak and Carbon Neutrality”(dual carbon)goal in China,the methane-carbon dioxide reforming reaction has attracted considerable attention due to its environmental benefits of converting t...Under the backdrop of“Carbon Peak and Carbon Neutrality”(dual carbon)goal in China,the methane-carbon dioxide reforming reaction has attracted considerable attention due to its environmental benefits of converting two greenhouse gases(methane and carbon dioxide)into syngas and its promising industrial applications.Nickel(Ni)-based catalysts,with high catalytic activity,low cost,and abundant resources,are considered ideal candidates for industrial applications.In this article,three reaction kinetic models were briefly introduced,namely the Power-Law(PL)model,the Eley-Rideal(ER)model,and the Langmuir-Hinshelwood-Hougen-Watson(LHHW)model.Based on the LHHW model,the reaction kinetics and mechanisms of different catalytic systems were systematically discussed,including the properties of supports,the doping of noble metals and transition metals,the role of promoters,and the influence of the geometric and electronic structures of Ni on the reaction mechanism.Furthermore,the kinetics of carbon deposition and elimination on various catalysts were analyzed.Based on the reaction rate expressions for carbon elimination,the reasons for the high activity of transition metal iron(Fe)-doped catalysts and core-shell structured catalysts in carbon elimination were explained.Based on the detailed collation and comparative analysis of the reaction mechanisms and kinetic characteristics across diverse Ni-based catalytic systems,a theoretical guidance for the designing of high-performance catalysts was provided in this work.展开更多
This study intends to address the advent of higher education massification in Eritrea following the restructuring of higher education in 2004-2005. The study applied both qualitative and quantitative research methods....This study intends to address the advent of higher education massification in Eritrea following the restructuring of higher education in 2004-2005. The study applied both qualitative and quantitative research methods. The target respondents of the survey questionnaire in the study were instructors, graduates, students, administrative personnel of all higher education institutions. The findings reveal that, institutes of higher education in Eritrea are currently confronting low quality of education, shortage of senior national faculties, dependence on fixed government budget, lack of digitalized governance and weak technology infrastructure. The study concludes that, the higher education institutions after reform achieved commendable results in human resource development, narrowing gender inequality, linkage with domestic and external stakeholders in various areas of cooperation. Moreover, students’ admission rate and enrollment rate increased steadily, academic programs, departments, courses, research projects and consultancy services flourished and the advent of massification in general brought positive returns to Eritrea.展开更多
To meet the need for cultivating application-oriented talents in local universities,this study introduced a project-based learning approach into the reform of bioinformatics experimental teaching.The course was struct...To meet the need for cultivating application-oriented talents in local universities,this study introduced a project-based learning approach into the reform of bioinformatics experimental teaching.The course was structured around a project titled"Influenza Virus Analysis",comprising four progressive modules:database utilization and information retrieval,sequence alignment and phylogenetic analysis,functional and structural prediction,and omics data analysis.These modules were integrated into a coherent research workflow that connected fragmented knowledge and technical skills.During implementation,flipped classroom and group collaboration methods were employed,alongside the establishment of a diversified assessment system emphasizing process evaluation.Teaching practice indicates that the reform effectively enhances students professional application skills,learning experience,and scientific literacy,facilitating a shift from"tool operation"to"problem-solving"capabilities.This study provides a reference model for the reform of bioinformatics experimental teaching in local universities.展开更多
Contemporary Social Sciences publishes outstanding research in the field of social sciences in China and also includes high-quality research work by foreign scholars on the development of China’s western regions and ...Contemporary Social Sciences publishes outstanding research in the field of social sciences in China and also includes high-quality research work by foreign scholars on the development of China’s western regions and its reform and opening up.The aim is to help promote China’s academic achievements to the world and give China a stronger voice in the global community of social sciences.The scopes of research fields for consideration include,but not limited to political science,economics,literature,linguistics,journalism and communication,education,sociology,philosophy,history,law,and interdisciplinary research.展开更多
Methanol steam reforming(MSR)represents a promising route for hydrogen production,leveraging the high energy density and liquid-phase storage advantages of methanol.Copper-based catalysts have become indispensable for...Methanol steam reforming(MSR)represents a promising route for hydrogen production,leveraging the high energy density and liquid-phase storage advantages of methanol.Copper-based catalysts have become indispensable for MSR due to their cost-effectiveness,exceptional catalytic activity,and tunable selectivity.However,persistent challenges such as thermal sintering,undesirable CO byproduct formation,diminished low-temperature reactivity,and long-term catalyst deactivation limit their broad industrial deployment.This review comprehensively examines the mechanistic pathways of MSR over Cu-based catalysts,with particular focus on differentiating catalyst formulations optimized for high-temperature(>200°C)versus low-temperature(<200°C)operation.It highlights the decisive influence of Cu nanoparticle size,electronic structure,and crystal structure on catalytic performance.Cutting-edge design strategies,including multi-element engineering,innovative synthesis techniques,and deactivation mitigation,are critically evaluated to elucidate mechanistic connections between atomic-scale structure and catalytic performance enhancement.Finally,industrial applications of commercial Cu/ZnO/Al_(2)O_(3)variants and their scalability challenges are discussed,alongside prospective strategies for catalyst innovation and engineering to advance next-generation hydrogen production.展开更多
Chinese President Xi Jinping has guided China through a year of resilient growth via forward-looking reforms and innovation-driven transformation that is shaping the nation’s economic trajectory for 2026 and beyond.
Four men were recently charged in a court in Hubei Province for their roles in creating and spreading the worst cyber worm virus in China’s Internet history. Li Jun,the 25-year-old principal offender, allegedly devel...Four men were recently charged in a court in Hubei Province for their roles in creating and spreading the worst cyber worm virus in China’s Internet history. Li Jun,the 25-year-old principal offender, allegedly developed the Xiongmao Shaoxiang (panda burning joss stick) cyber bug,officially called worm.whboy,and spread it on the Internet by infecting Websites.He said he wrote the panda worm for fun,but according to the police,Li earlier confessed to selling it to 12 clients and earning more than 100,000展开更多
Guangdong Province in south China is a pacesetter,pioneer,and pilot zone of China’s reform and opening up.Of the first batch of four special economic zones established in 1980,which was a milestone in China’s reform...Guangdong Province in south China is a pacesetter,pioneer,and pilot zone of China’s reform and opening up.Of the first batch of four special economic zones established in 1980,which was a milestone in China’s reform and opening up,three are in Guangdong Province.展开更多
Against the backdrop of integrated development between technical education and higher vocational education,the teaching of Chinese Medicine Processing Technology courses faces new opportunities and challenges.This pap...Against the backdrop of integrated development between technical education and higher vocational education,the teaching of Chinese Medicine Processing Technology courses faces new opportunities and challenges.This paper analyzes the existing problems in the current teaching of Chinese Medicine Processing Technology courses,discusses the necessity of reforming the teaching model under the context of integration,and proposes the construction of a"Dual-Capability Progression,Six-Dimensional Empowerment"teaching model.The aim is to enhance the teaching quality of Chinese Medicine Processing Technology courses and cultivate high-quality skilled talents in Chinese medicine processing who can meet industry demands.展开更多
THE Hainan Free Trade Port(FTP)officially launched island-wide special customs operations on December 18,2025.One month in,a reporting team from China International Communications Group(CICG)conducted an exclusive int...THE Hainan Free Trade Port(FTP)officially launched island-wide special customs operations on December 18,2025.One month in,a reporting team from China International Communications Group(CICG)conducted an exclusive interview with Feng Fei,secretary of the Hainan Provincial Committee of the Communist Party of China(CPC)and chairman of the Standing Committee of the Hainan Provincial People’s Congress.展开更多
A detailed three-dimensional mechanistic model of a large-scale solid oxide fuel cell(SOFC) unit running on partially pre-reformed methane is developed. The model considers the coupling effects of chemical and electro...A detailed three-dimensional mechanistic model of a large-scale solid oxide fuel cell(SOFC) unit running on partially pre-reformed methane is developed. The model considers the coupling effects of chemical and electrochemical reactions, mass transport, momentum and heat transfer in the SOFC unit. After model validation, parametric simulations are conducted to investigate how the methane pre-reforming ratio affects the transport and electrochemistry of the SOFC unit. It is found that the methane steam reforming reaction has a "smoothing effect", which can achieve more uniform distributions of gas compositions, current density and temperature among the cell plane. In the case of 1500 W/m^2 power density output, adding 20% methane absorbs 50% of internal heat production inside the cell, reduces the maximum temperature difference inside the cell from 70 K to 22 K and reduces the cathode air supply by 75%, compared to the condition of completely pre-reforming of methane. Under specific operating conditions, the pre-reforming ratio of methane has an optimal range for obtaining a good temperature distribution and good cell performance.展开更多
Since the end of the Bretton Woods era, the world has operatea on a ae jacto system of free-floating exchange rates, with the US dollar as the dominant international currency. The system, characterized by large pro-cy...Since the end of the Bretton Woods era, the world has operatea on a ae jacto system of free-floating exchange rates, with the US dollar as the dominant international currency. The system, characterized by large pro-cyclical capital flows and chronic imbalances, is inherently unstable, and has contributed to repeated crises, recessions and geopolitical tensions. One potentially ＂least-difficult＂ line of reform would be to allow the evolution of a multi-currency system, underpinned by an expanded role for Special Drawing Rights （SDRs）. Attempts to promote wider use of the SDR have foundered on the liquidity premium. However, for Chinese corporations and institutions, at present restricted in their capital account activities, the SDR liquidity premium would appear less daunting, The Chinese authorities eould provide policy encouragement for the use of SDRs by their institutions. This initiative, supported by China＇s Special Administrative Region Hong Kong, would kick-start an international SDR ecosystem, and encourage even broader use of SDRs, to the benefit of international monetary stability.展开更多
Hydrogen safety in storage and transport is one of the major obstacles for the widespread adoption of hydrogen fuel cells,making it critical to assuage public concerns on the safety of compressed hydrogen storage.Meth...Hydrogen safety in storage and transport is one of the major obstacles for the widespread adoption of hydrogen fuel cells,making it critical to assuage public concerns on the safety of compressed hydrogen storage.Methanol in bountiful supply is a promising hydrogen energy carrier.Accordingly,a novel MSR-HT-PEMFC system coupling the hydrogen production via methanol steam reforming(MSR)and energy generation via high temperature proton exchange membrane fuel cell(HT-PEMFC)was firstly introduced by Prof.Zi-Feng Ma from Shanghai Jiaotong University and Prof.Shan-Tung Tu from East China University of Science and Technology,in collaboration with Shanghai Palcan Energy Co.Ltd.The MSRHT-PEMFC system eliminates the potential risks of compressed hydrogen storage.展开更多
基金the National Natural Science Foundation of China (20576023)the Guangdong Province Natural Science Foundation (06025660)
文摘The Ni-B-Oδ and Ni-B-Zr-Oδ catalysts were prepared by the method of chemical reduction, and the deep removal of CO by selective methanation from the reformed fuels was performed over the as-prepared catalysts. The results showed that zirconium strongly influenced the activity and selectivity of the Ni-B-Zr-Oδ catalysts. Over the Ni-B-Oδ catalyst, the highest CO conversion obtained was only 24.32% under the experi-mental conditions studied. However, over the Ni-B-Zr-Oδ catalysts, the CO methanation conversion was higher than 90% when the temperature was increased to 220℃. Additionally, it was found that the Ni/B mole ratio also affected the performance of the Ni-B-Zr-Oδ catalysts. With the increase of the Ni/B mole ratio from 1.8 to 2.2, the CO methanation activity of the catalyst was improved. But when the Ni/B mole ratio was higher than 2.2, the performance of the catalyst for CO selective methanation decreased instead. Among all the catalysts, the Ni29B13Zr58Oδ catalyst investigated here exhibited the highest catalytic performance for the CO selective methanation, which was capable of reducing the CO outlet concentration to less than 40 ppm from the feed gases stream in the temperature range of 230-250℃, while the CO2 conversion was kept below 8% all along. Characterization of the Ni-B-Oδ and Ni-B-Zr-Oδ catalysts was provided by XRD, SEM, DSC, and XPS.
基金Supported by National Social Science Fundation(10BJY063)Key Project of University Scientific Research in Xinjiang Uygur Autonomous Region (XJEDU2011I26)~~
文摘[Objective] The paper was to study the effect of agricultural land reform on cotton cultivation in Manasi, XinJiang based on reformed farmers. [Method] Rural land contract management rights transfer of rural household in Manasi County of Xinjiang Changji Hui Autonomous Prefecture were surveyed in August, 2011. Based on the survey data, the paper analyzed the effect of agricultural land reform on cotton culti- vation from 2 aspects of cotton cultivation scale and benefit, and also studied the willingness of farmers for agricultural land reform. [Result] The main obstacle for farmer＇s unwillingness of continuous land reform for cotton cultivation was that the cotton cultivation risk was big, and the benefit could not be guaranteed. The agricul- tural land area per household increased after agricultural land reform, which increased the modernization progress of cotton cultivation. It also increased the benefit of cotton cultivation, and further affected the benefit of cotton cultivation. [Conclusion] The study provided reference for improving scale cotton cultivation efficacy in Xinjiang.
文摘The content items to be offset of the reformed debt in consolidated financial statement of the operation occurred inside the group of enterprise is different from other general inner trades such as the sale of the stock or fixed asset, etc.. Through the reformed debt, the debtor and creditor have erased debt and credit on their bookkeeping. What to be offset are the capital reserve and the changed value of the asset. In this paper, the offsetting method of such items will be discussed.
文摘Deism is one of the branches of radical Enlightenment which states that God creates the World, but he does not intervene into its operation. Theological dogmas are completely useless because these rules are not necessary for the prosperity of people. These ideas were very dangerous to Christianity; however, they were widespread in many parts of Europe in the 18th century. The Reformed Diocese of Bekes was located in the south eastern area of the Kingdom of Hungary, whose followers practised an essentially rural way of life; therefore, they hardly read any scientific and philosophical works. In spite of this fact, the spread of the ideas characteristic of deism can be observed in numerous dioceses. The reception of deism in southeast Hungary can be witnessed not in the traditional intellectual documents （school curriculum, translations, and philosophical treatises）, but in the documents of the ecclesiastical government： Church attendance records, documents of the proceedings of the ecclesiastical courts. With the detailed analysis of the ecclesiastical administration documents of the Reformed Church, this study investigates how folk religion relates to deism and the criticism of religion by the radical Enlightenment.
文摘Since 2015, a “reform storm” of Environmental Impact Assessment (EIA) opened up in China. This study tries to answer the question of whether these reforms improve the effectiveness of EIA. First, we elaborate on the reforms along with three well-acknowledged components, including EIA legislation, administration, and process. Then, evaluate the reformed EIA system against revised Ahmad and Wood’s criteria. The results demonstrate that the revised laws and regulations are more stringent than the old versions. The EIA process is simplified, and its coordination with the pollutant discharge permit system is promoted. The interim and post-event supervision is currently more robust and the penalties are more severe than before. However, the hierarchical position of the Environmental Protection Law is not high enough and the coordination of different government departments is still challenging. In summary, despite the problems occurring at the initial phase of reforms, the effectiveness of the EIA system has largely been improved.
基金supported by National Science and Technology Major Project of China(2016ZX05024-003).
文摘The intact volcanic edifice had been formed and finalized during the depositional stage of Mesozoic Yixian Formation in the Bohai Sea.The residual body of the intact volcanic edifice after reformation was defined as the basement reformed volcanic edifice.Based on drilling,seismic,well logging and microscopic data in the study area,characteristics of the basement reformed volcanic edifice were well discussed,and its control on oil and gas was also investigated.Results showed that the basement reformed volcanic edifice was jointly controlled by magmatic property,paleo-geomorphology and late reformation,and the late fault cutting and differential denudation were major reformation ways of the volcanic edifice;strong and weak volcanic eruption patterns developed in the study belonged to the invertedsequence eruption,and the explosive facies and the intermediate-acidic or acidic effusive facies were the favorable reservoir facies;weathering,cycles and period boundaries controlled vertical distribution of high-quality lithofacies,and coupling between each periodic interface at different levels and residual high-quality lithofacies was the key to oil and gas enrichment.Major exploration targets of volcanic rocks were to find periodic interfaces in the volcanic edifice with the residual high-quality lithofacies within 150 m from the weathering crust or eruption surface.
基金Supported by Innovation Capability Support Program of Shaanxi(2024RS-CXTD-53,2024ZC-KJXX-096)the Key R&D Program of Shaanxi Province(2022QCY-LL-69)Xi’an Science and Technology Project(24GXFW0089)。
文摘Under the backdrop of“Carbon Peak and Carbon Neutrality”(dual carbon)goal in China,the methane-carbon dioxide reforming reaction has attracted considerable attention due to its environmental benefits of converting two greenhouse gases(methane and carbon dioxide)into syngas and its promising industrial applications.Nickel(Ni)-based catalysts,with high catalytic activity,low cost,and abundant resources,are considered ideal candidates for industrial applications.In this article,three reaction kinetic models were briefly introduced,namely the Power-Law(PL)model,the Eley-Rideal(ER)model,and the Langmuir-Hinshelwood-Hougen-Watson(LHHW)model.Based on the LHHW model,the reaction kinetics and mechanisms of different catalytic systems were systematically discussed,including the properties of supports,the doping of noble metals and transition metals,the role of promoters,and the influence of the geometric and electronic structures of Ni on the reaction mechanism.Furthermore,the kinetics of carbon deposition and elimination on various catalysts were analyzed.Based on the reaction rate expressions for carbon elimination,the reasons for the high activity of transition metal iron(Fe)-doped catalysts and core-shell structured catalysts in carbon elimination were explained.Based on the detailed collation and comparative analysis of the reaction mechanisms and kinetic characteristics across diverse Ni-based catalytic systems,a theoretical guidance for the designing of high-performance catalysts was provided in this work.
文摘This study intends to address the advent of higher education massification in Eritrea following the restructuring of higher education in 2004-2005. The study applied both qualitative and quantitative research methods. The target respondents of the survey questionnaire in the study were instructors, graduates, students, administrative personnel of all higher education institutions. The findings reveal that, institutes of higher education in Eritrea are currently confronting low quality of education, shortage of senior national faculties, dependence on fixed government budget, lack of digitalized governance and weak technology infrastructure. The study concludes that, the higher education institutions after reform achieved commendable results in human resource development, narrowing gender inequality, linkage with domestic and external stakeholders in various areas of cooperation. Moreover, students’ admission rate and enrollment rate increased steadily, academic programs, departments, courses, research projects and consultancy services flourished and the advent of massification in general brought positive returns to Eritrea.
基金Supported by Undergraduate Higher Education Teaching Quality and Reform Projects of Guangdong Province(Yuejiao Gao Han[2024]No.9,Yuejiao Gao Han[2024]No.30)Guangdong Basic and Applied Basic Research Foundation(2023A1515110973)+1 种基金Guangdong Provincial Young Innovative Talents Project of General Colleges and Universities(2023KQNCX089)Quality Engineering and Teaching Reform Projects of Zhaoqing University(zlgc202239,zlgc202207,zlgc2024005,zlgc2024038).
文摘To meet the need for cultivating application-oriented talents in local universities,this study introduced a project-based learning approach into the reform of bioinformatics experimental teaching.The course was structured around a project titled"Influenza Virus Analysis",comprising four progressive modules:database utilization and information retrieval,sequence alignment and phylogenetic analysis,functional and structural prediction,and omics data analysis.These modules were integrated into a coherent research workflow that connected fragmented knowledge and technical skills.During implementation,flipped classroom and group collaboration methods were employed,alongside the establishment of a diversified assessment system emphasizing process evaluation.Teaching practice indicates that the reform effectively enhances students professional application skills,learning experience,and scientific literacy,facilitating a shift from"tool operation"to"problem-solving"capabilities.This study provides a reference model for the reform of bioinformatics experimental teaching in local universities.
文摘Contemporary Social Sciences publishes outstanding research in the field of social sciences in China and also includes high-quality research work by foreign scholars on the development of China’s western regions and its reform and opening up.The aim is to help promote China’s academic achievements to the world and give China a stronger voice in the global community of social sciences.The scopes of research fields for consideration include,but not limited to political science,economics,literature,linguistics,journalism and communication,education,sociology,philosophy,history,law,and interdisciplinary research.
基金supported by the National Natural Science Foundation of China(No.22208374)the Excellent Youth Scientist Award Foundation of Shandong Province(No.ZR2024YQ009)+2 种基金the Distinguished Young Scholars of the National Natural Science Foundation of China(No.22322814)CNPC Innovation Found(2022DQ02-0607)the Fundamental Research Funds for the Central Universities(No.24CX07006A).
文摘Methanol steam reforming(MSR)represents a promising route for hydrogen production,leveraging the high energy density and liquid-phase storage advantages of methanol.Copper-based catalysts have become indispensable for MSR due to their cost-effectiveness,exceptional catalytic activity,and tunable selectivity.However,persistent challenges such as thermal sintering,undesirable CO byproduct formation,diminished low-temperature reactivity,and long-term catalyst deactivation limit their broad industrial deployment.This review comprehensively examines the mechanistic pathways of MSR over Cu-based catalysts,with particular focus on differentiating catalyst formulations optimized for high-temperature(>200°C)versus low-temperature(<200°C)operation.It highlights the decisive influence of Cu nanoparticle size,electronic structure,and crystal structure on catalytic performance.Cutting-edge design strategies,including multi-element engineering,innovative synthesis techniques,and deactivation mitigation,are critically evaluated to elucidate mechanistic connections between atomic-scale structure and catalytic performance enhancement.Finally,industrial applications of commercial Cu/ZnO/Al_(2)O_(3)variants and their scalability challenges are discussed,alongside prospective strategies for catalyst innovation and engineering to advance next-generation hydrogen production.
文摘Chinese President Xi Jinping has guided China through a year of resilient growth via forward-looking reforms and innovation-driven transformation that is shaping the nation’s economic trajectory for 2026 and beyond.
文摘Four men were recently charged in a court in Hubei Province for their roles in creating and spreading the worst cyber worm virus in China’s Internet history. Li Jun,the 25-year-old principal offender, allegedly developed the Xiongmao Shaoxiang (panda burning joss stick) cyber bug,officially called worm.whboy,and spread it on the Internet by infecting Websites.He said he wrote the panda worm for fun,but according to the police,Li earlier confessed to selling it to 12 clients and earning more than 100,000
文摘Guangdong Province in south China is a pacesetter,pioneer,and pilot zone of China’s reform and opening up.Of the first batch of four special economic zones established in 1980,which was a milestone in China’s reform and opening up,three are in Guangdong Province.
基金Supported by Scientific Research Fund Project of Yunnan Provincial Department of Education(2025J1950).
文摘Against the backdrop of integrated development between technical education and higher vocational education,the teaching of Chinese Medicine Processing Technology courses faces new opportunities and challenges.This paper analyzes the existing problems in the current teaching of Chinese Medicine Processing Technology courses,discusses the necessity of reforming the teaching model under the context of integration,and proposes the construction of a"Dual-Capability Progression,Six-Dimensional Empowerment"teaching model.The aim is to enhance the teaching quality of Chinese Medicine Processing Technology courses and cultivate high-quality skilled talents in Chinese medicine processing who can meet industry demands.
文摘THE Hainan Free Trade Port(FTP)officially launched island-wide special customs operations on December 18,2025.One month in,a reporting team from China International Communications Group(CICG)conducted an exclusive interview with Feng Fei,secretary of the Hainan Provincial Committee of the Communist Party of China(CPC)and chairman of the Standing Committee of the Hainan Provincial People’s Congress.
基金financially supported by the National Natural Science Foundation of China(Grant No.51776108,No.51476092)
文摘A detailed three-dimensional mechanistic model of a large-scale solid oxide fuel cell(SOFC) unit running on partially pre-reformed methane is developed. The model considers the coupling effects of chemical and electrochemical reactions, mass transport, momentum and heat transfer in the SOFC unit. After model validation, parametric simulations are conducted to investigate how the methane pre-reforming ratio affects the transport and electrochemistry of the SOFC unit. It is found that the methane steam reforming reaction has a "smoothing effect", which can achieve more uniform distributions of gas compositions, current density and temperature among the cell plane. In the case of 1500 W/m^2 power density output, adding 20% methane absorbs 50% of internal heat production inside the cell, reduces the maximum temperature difference inside the cell from 70 K to 22 K and reduces the cathode air supply by 75%, compared to the condition of completely pre-reforming of methane. Under specific operating conditions, the pre-reforming ratio of methane has an optimal range for obtaining a good temperature distribution and good cell performance.
文摘Since the end of the Bretton Woods era, the world has operatea on a ae jacto system of free-floating exchange rates, with the US dollar as the dominant international currency. The system, characterized by large pro-cyclical capital flows and chronic imbalances, is inherently unstable, and has contributed to repeated crises, recessions and geopolitical tensions. One potentially ＂least-difficult＂ line of reform would be to allow the evolution of a multi-currency system, underpinned by an expanded role for Special Drawing Rights （SDRs）. Attempts to promote wider use of the SDR have foundered on the liquidity premium. However, for Chinese corporations and institutions, at present restricted in their capital account activities, the SDR liquidity premium would appear less daunting, The Chinese authorities eould provide policy encouragement for the use of SDRs by their institutions. This initiative, supported by China＇s Special Administrative Region Hong Kong, would kick-start an international SDR ecosystem, and encourage even broader use of SDRs, to the benefit of international monetary stability.
文摘Hydrogen safety in storage and transport is one of the major obstacles for the widespread adoption of hydrogen fuel cells,making it critical to assuage public concerns on the safety of compressed hydrogen storage.Methanol in bountiful supply is a promising hydrogen energy carrier.Accordingly,a novel MSR-HT-PEMFC system coupling the hydrogen production via methanol steam reforming(MSR)and energy generation via high temperature proton exchange membrane fuel cell(HT-PEMFC)was firstly introduced by Prof.Zi-Feng Ma from Shanghai Jiaotong University and Prof.Shan-Tung Tu from East China University of Science and Technology,in collaboration with Shanghai Palcan Energy Co.Ltd.The MSRHT-PEMFC system eliminates the potential risks of compressed hydrogen storage.
