期刊文献+
共找到546,251篇文章
< 1 2 250 >
每页显示 20 50 100
MODEL-BASED DEVELOPMENT OF REAL-TIME SOFTWARE SYSTEM FOR ELECTRONIC UNIT PUMP SYSTEM 被引量:1
1
作者 YU Shitao YANG Shiwei YANG Lin GONG Yuanming ZHUO Bin 《Chinese Journal of Mechanical Engineering》 SCIE EI CAS CSCD 2007年第1期25-30,共6页
A real-time operating system (RTOS), also named OS, is designed based on the hardware platform of MC68376, and is implemented in the electronic control system for unit pump in diesel engine. A parallel and time-base... A real-time operating system (RTOS), also named OS, is designed based on the hardware platform of MC68376, and is implemented in the electronic control system for unit pump in diesel engine. A parallel and time-based task division method is introduced and the multi-task software architecture is built in the software system for electronic unit pump (EUP) system. The V-model software development process is used to control algorithm of each task. The simulation results of the hardware-in-the-loop simulation system (HILSS) and the engine experimental results show that the OS is an efficient real-time kernel, and can meet the real-time demands of EUP system; The built multi-task software system is real-time, determinate and reliable. V-model development is a good development process of control algorithms for EUP system, the control precision of control system can be ensured, and the development cycle and cost are also decreased. 展开更多
关键词 Real-time operating system (RTOS) Multi-task V-model development Hardware-in-the-loop simulation system(HILSS) Electronic unit pump (EUP)
在线阅读 下载PDF
Approach to Model-Based Development of Context-Aware Application
2
作者 Imen Jaouadi Raoudha Ben Djemaa Hanene Ben Abdallah 《Journal of Computer and Communications》 2015年第5期212-219,共8页
In order to address challenges posed by advances in mobile computing, ubiquitous devices software engineering, wireless and sensor technologies in many applications running, this paper provides an approach that simpli... In order to address challenges posed by advances in mobile computing, ubiquitous devices software engineering, wireless and sensor technologies in many applications running, this paper provides an approach that simplifies the design and the implementation of context-aware Interactive systems called CAISDA (Context-Aware Interactive System Development Approach). This approach is based on the analysis and synthesis of context-aware frameworks proposed in literature. 展开更多
关键词 CONTEXT-AWARE MODEL Based development RUNTIME ADAPTATION
在线阅读 下载PDF
A survey on multi-objective,model-based,oil and gas field development optimization:Current status and future directions 被引量:1
3
作者 Auref Rostamian Matheus Bernardelli de Moraes +1 位作者 Denis Jose Schiozer Guilherme Palermo Coelho 《Petroleum Science》 2025年第1期508-526,共19页
In the area of reservoir engineering,the optimization of oil and gas production is a complex task involving a myriad of interconnected decision variables shaping the production system's infrastructure.Traditionall... In the area of reservoir engineering,the optimization of oil and gas production is a complex task involving a myriad of interconnected decision variables shaping the production system's infrastructure.Traditionally,this optimization process was centered on a single objective,such as net present value,return on investment,cumulative oil production,or cumulative water production.However,the inherent complexity of reservoir exploration necessitates a departure from this single-objective approach.Mul-tiple conflicting production and economic indicators must now be considered to enable more precise and robust decision-making.In response to this challenge,researchers have embarked on a journey to explore field development optimization of multiple conflicting criteria,employing the formidable tools of multi-objective optimization algorithms.These algorithms delve into the intricate terrain of production strategy design,seeking to strike a delicate balance between the often-contrasting objectives.Over the years,a plethora of these algorithms have emerged,ranging from a priori methods to a posteriori approach,each offering unique insights and capabilities.This survey endeavors to encapsulate,catego-rize,and scrutinize these invaluable contributions to field development optimization,which grapple with the complexities of multiple conflicting objective functions.Beyond the overview of existing methodologies,we delve into the persisting challenges faced by researchers and practitioners alike.Notably,the application of multi-objective optimization techniques to production optimization is hin-dered by the resource-intensive nature of reservoir simulation,especially when confronted with inherent uncertainties.As a result of this survey,emerging opportunities have been identified that will serve as catalysts for pivotal research endeavors in the future.As intelligent and more efficient algo-rithms continue to evolve,the potential for addressing hitherto insurmountable field development optimization obstacles becomes increasingly viable.This discussion on future prospects aims to inspire critical research,guiding the way toward innovative solutions in the ever-evolving landscape of oil and gas production optimization. 展开更多
关键词 Derivative-free algorithms Ensemble-based optimization Gradient-based methods Life-cycle optimization Reservoir field development and management
原文传递
mTORC1 and mTORC2 synergy in human neural development, disease, and regeneration 被引量:1
4
作者 Navroop K.Dhaliwal Julien Muffat Yun Li 《Neural Regeneration Research》 2026年第4期1552-1553,共2页
The mechanistic target of rapamycin(m TOR) is a serine/threonine kinase that plays a pivotal role in cellular growth, proliferation, survival, and metabolism. In the central nervous system(CNS), the mTOR pathway regul... The mechanistic target of rapamycin(m TOR) is a serine/threonine kinase that plays a pivotal role in cellular growth, proliferation, survival, and metabolism. In the central nervous system(CNS), the mTOR pathway regulates diverse aspects of neural development and function. Genetic mutations within the m TOR pathway lead to severe neurodevelopmental disorders, collectively known as “mTORopathies”(Crino, 2020). Dysfunctions of m TOR, including both its hyperactivation and hypoactivation, have also been implicated in a wide spectrum of other neurodevelopmental and neurodegenerative conditions, highlighting its importance in CNS health. 展开更多
关键词 m tor neural development mtorc central nervous system cns mtor neurodevelopmental disorders neurodegenerative conditions
暂未订购
Ecosystem management and agricultural green development in subtropical regions
5
作者 Jinshui Wu Tony G.O’Donnell +4 位作者 Andrew Macrae Hongsong Chen Weiguo Cheng Zhihong Xu Zhengmiao Deng 《Journal of Integrative Agriculture》 2026年第2期399-401,共3页
The United Nations Sustainable Development Goal(SDG) 2 aims to achieve Zero Hunger by 2030.However,global hunger and food insecurity have continued to rise at an alarming rate(UN 2023).Subtropical regions are home to ... The United Nations Sustainable Development Goal(SDG) 2 aims to achieve Zero Hunger by 2030.However,global hunger and food insecurity have continued to rise at an alarming rate(UN 2023).Subtropical regions are home to more than 30% of the world's population,predominantly in developing countries where per capita farmland and food supply are only 40% of those in developed nations(FAO 2018).Meeting the Zero Hunger target amid ongoing population growth in these regions requires a substantial increase in agricultural production while minimizing soil degradation and adverse ecological impacts.This challenge is shared by many countries across South Asia,Africa,and Central and South America. 展开更多
关键词 ecosystem management developing countries subtropical regions sustainable development goal agricultural green development zero hunger sustainable development goal sdg population growth
在线阅读 下载PDF
Innovation and Development Policy(中文名:《创新与发展政策(英文)》)征稿启事
6
《科研管理》 北大核心 2026年第1期F0004-F0004,共1页
Innovation and Development Policy,简称“IDP”,中文名:《创新与发展政策(英文)》,是由中国科学院主管,中国科学院科技战略咨询研究院、中国科学学与科技政策研究会共同主办,国内外发行(ISSN:2096-5141,CN:10-1513/D)的英文国际期刊... Innovation and Development Policy,简称“IDP”,中文名:《创新与发展政策(英文)》,是由中国科学院主管,中国科学院科技战略咨询研究院、中国科学学与科技政策研究会共同主办,国内外发行(ISSN:2096-5141,CN:10-1513/D)的英文国际期刊。目前期刊每年出版两期。已发表论文在期刊网站可以自由获取,http://idp-journal.casisd.cn/browse/al/al2019/。 展开更多
关键词 创新与发展政策 Innovation and development Policy
原文传递
Innovation and Development Policy(中文名:《创新与发展政策(英文)》)征稿启事
7
《科研管理》 北大核心 2026年第3期F0004-F0004,共1页
Innovation and Development Policy简称“IDP”,中文名《创新与发展政策(英文)》,是由中国科学院主管,中国科学院科技战略咨询研究院、中国科学学与科技政策研究会共同主办,国内外发行(ISSN:2096-5141,CN:10-1513/D)的英文国际期刊。... Innovation and Development Policy简称“IDP”,中文名《创新与发展政策(英文)》,是由中国科学院主管,中国科学院科技战略咨询研究院、中国科学学与科技政策研究会共同主办,国内外发行(ISSN:2096-5141,CN:10-1513/D)的英文国际期刊。目前期刊每年出版四期。已发表论文在期刊网站可以自由获取,http://idp-journal.casisd.cn/browse/al/al2019/。 展开更多
关键词 Innovation and development Policy
原文传递
Guiding the younger generation to explore new scenarios for participating in standards development and application
8
作者 Li Zhiping 《China Standardization》 2026年第1期43-44,共2页
Standards are the common language that consolidates global consensus and builds the most solid foundation for international partnerships.They are the cornerstone for global sustainable and high-quality development.You... Standards are the common language that consolidates global consensus and builds the most solid foundation for international partnerships.They are the cornerstone for global sustainable and high-quality development.Young students,with their active and vibrant minds,represent the future and hope of standardization. 展开更多
关键词 standards development sustainable development application standards international partnerships high quality development consolidates global consensus younger generation common language
原文传递
China’s Urban-Rural Integration:A Global Perspective on Sustainable Development
9
作者 XIA YUANYUAN 《China Today》 2026年第1期36-38,共3页
China is carving out a distinctive development path which features urban-rural integration.This approach has not only yielded tangible results domestically but also drawn the attention of other countries.
关键词 sustainable development urban rural integration China development path
在线阅读 下载PDF
Powering Local Growth China's counties are on track to witness high-quality development rooted in local conditions
10
作者 Tu Shengwei 《China Report ASEAN》 2026年第1期50-51,共2页
County economies form a distinctive,integrated regional economic structure.Their growth is shaped by specific social and historical conditions and,in turn,influences many aspects of wider economic and social developme... County economies form a distinctive,integrated regional economic structure.Their growth is shaped by specific social and historical conditions and,in turn,influences many aspects of wider economic and social development.In China's modernization process,they have always played a vital role.The 2024 Central Economic Work Conference placed strong emphasis on vigorously developing county economies. 展开更多
关键词 county economies economic social developmentin regional economic structure high quality development economic development local growth social historical conditions vigorously developing county economies
在线阅读 下载PDF
New Year Message for 2026 from Petroleum Exploration and Development
11
作者 Editorial Office of Petroleum Exploration and Development 《Petroleum Exploration and Development》 2026年第1期F0002-F0002,共1页
Time flows with no stop,and seasons change in swift succession.As we bid farewell to 2025 and welcome the Spring Festival of 2026,the Editorial Office of Petroleum Exploration and Development extends our most heartfel... Time flows with no stop,and seasons change in swift succession.As we bid farewell to 2025 and welcome the Spring Festival of 2026,the Editorial Office of Petroleum Exploration and Development extends our most heartfelt gratitude and sincerest New Year wishes to our editorial board members,experts,authors,readers,and friends from all sectors. 展开更多
关键词 development new year message seasons change editorial office editorial board members petroleum exploration experts petroleum exploration development
在线阅读 下载PDF
Standards lead the high-quality development of intelligent construction in China
12
作者 Cheng Zhijun 《China Standardization》 2026年第1期49-49,共1页
To advance intelligent construction,standards must come first.The Ministry of Housing and Urban-Rural Development has issued the List for Replicable Experience and Practices for Developing Intelligent Construction fou... To advance intelligent construction,standards must come first.The Ministry of Housing and Urban-Rural Development has issued the List for Replicable Experience and Practices for Developing Intelligent Construction four times successively and the Technical Guidelines for Intelligent Construction(Trial). 展开更多
关键词 STANDARDS technical guidelines high quality development Ministry Housing Urban Rural development intelligent constructionstandards replicable experience intelligent construction
原文传递
Health-related physical fitness in children and adolescents and the United Nations Sustainable Development Goals:Signals of convergence
13
作者 Diego Augusto Santos Silva Mark S.Tremblay 《Journal of Sport and Health Science》 2026年第3期6-12,共7页
1.Background The United Nations(UN)2030 Agenda for Sustainable Development,adopted in 2015,established the Sustainable Development Goals(SDGs)as a comprehensive framework to address global challenges through interconn... 1.Background The United Nations(UN)2030 Agenda for Sustainable Development,adopted in 2015,established the Sustainable Development Goals(SDGs)as a comprehensive framework to address global challenges through interconnected social,economic,and environmental targets. 展开更多
关键词 sustainable development goals sdgs sustainable developmentadopted AGENDA children adolescents address global challenges united nations sustainable development goals
在线阅读 下载PDF
Rolling Out a Technocentric Rural Development Blueprint
14
作者 ZHONG YU 《China Today》 2026年第1期26-29,共4页
China aims to build on its achievements of the past five years to accelerate rural revitalization during the 15th Five-Year Plan period.IN China,issues relating to agriculture,rural areas,and rural residents have alwa... China aims to build on its achievements of the past five years to accelerate rural revitalization during the 15th Five-Year Plan period.IN China,issues relating to agriculture,rural areas,and rural residents have always been a priority in national development.At its fourth plenary session held in October 2025,the 20th Central Committee of the Communist Party of China(CPC)once again emphasized the need to accelerate agricultural and rural modernization,and advance all-around rural revitalization over the next five years. 展开更多
关键词 technocentric rural areas agricultural modernization accelerate agricultural rural modernizationand rural development five year plan rural revitalization national development
在线阅读 下载PDF
Intersection of mitochondrial dysfunction and myelination:An overlooked aspect in neurodevelopmental disorders
15
作者 Ariel Nir Sade Gal Wiener Boaz Barak 《Neural Regeneration Research》 2026年第2期659-660,共2页
Neurodevelopmental processes represent a finely tuned interplay between genetic and environmental factors,shaping the dynamic landscape of the developing brain.A major component of the developing brain that enables th... Neurodevelopmental processes represent a finely tuned interplay between genetic and environmental factors,shaping the dynamic landscape of the developing brain.A major component of the developing brain that enables this dynamic is the white matter(WM),known to be affected in neurodevelopmental disorders(NDDs)(Rokach et al.,2024).WM formation is mediated by myelination,a multifactorial process driven by neuro-glia interactions dependent on proper neuronal functionality(Simons and Trajkovic,2006).Another key aspect of neurodevelopmental abnormalities involves neuronal dynamics and function,with recent advances significantly enhancing our understanding of both neuronal and glial mitochondrial function(Devine and Kittler,2018;Rojas-Charry et al.,2021).Energy homeostasis in neurons,attributed largely to mitochondrial function,is critical for proper functionality and interactions with oligodendrocytes(OLs),the cells forming myelin in the brain’s WM.We herein discuss the interplay between these processes and speculate on potential dysfunction in NDDs. 展开更多
关键词 neurodevelopmental disorders ndds rokach white matter developing brain MYELINATION neurodevelopmental processes mitochondrial dysfunction white matter wm known developing braina
暂未订购
Study on the development,applications,and standardization status of environmental DNA(eDNA)technology in China
16
作者 Li Xiawei Duan Bin +3 位作者 Lu Jing Li Xueling Wang Min Yang Yongqi 《China Standardization》 2026年第1期54-59,共6页
Environmental DNA(eDNA)technology has revolutionized biodiversity monitoring with its non-invasive,sensitive,and cost-efficient approach.This paper systematically reviews eDNA advancements,examining its applications i... Environmental DNA(eDNA)technology has revolutionized biodiversity monitoring with its non-invasive,sensitive,and cost-efficient approach.This paper systematically reviews eDNA advancements,examining its applications in aquatic and terrestrial ecosystems and assessing China’s standardization progress.It delineates four developmental phases from single-species detection to high-throughput sequencing,and highlights China’s contribution to the development of technical standards.While significant progress has been made,challenges persist in quantitative accuracy,methodological consistency,and large-scale implementation.Future efforts should prioritize enhanced standardization,improved quantification techniques,broader applications,and international collaboration to drive innovation in eDNA technology. 展开更多
关键词 environmental DNA development application standardization status
原文传递
Africa’s Economic Development Amidst Profound Changes:Characteristics,Challenges and Prospects
17
作者 Tian Feng 《Contemporary World》 2026年第1期32-38,共7页
After the end of World War II,African countries successively gained independence and ushered in a golden age of economic development.Through the strategies of primary product exports,transitional economic policies and... After the end of World War II,African countries successively gained independence and ushered in a golden age of economic development.Through the strategies of primary product exports,transitional economic policies and import substitution development,their economic growth accelerated significantly.However,due to the limitations of these strategies,the structural problem of Africa being an exporter of cheap industrial raw materials and an importer of manufactured goods remained unresolved. 展开更多
关键词 import substitution developmenttheir import substitution development primary product exports manufactured goods economic development transitional economic policies African countries economic developmentthrough
在线阅读 下载PDF
A BLUEPRINT FOR PEOPLE-CENTERED DEVELOPMENT
18
作者 Carlos Martinez 《China Report ASEAN》 2026年第1期64-64,共1页
The 20th Communist Party of China(CPC)Central Committee held its fourth plenary session in Beijing on October 20-23.The plenary session's central task was to deliberate on the framework of the country's next n... The 20th Communist Party of China(CPC)Central Committee held its fourth plenary session in Beijing on October 20-23.The plenary session's central task was to deliberate on the framework of the country's next national development roadmap:the 15th Five-Year Plan(2026-2030).Every five-year plan is important but this one arrives at a truly pivotal moment in terms of China's development trajectory and the global environment. 展开更多
关键词 plenary sessions people centered development national development roadmap deliberate framework th CPC Central Committee global environment th five year plan
在线阅读 下载PDF
3D genomic alterations during development of skeletal muscle in chicken
19
作者 Zhongxian Xu Tao Wang +16 位作者 Wei Zhu Maosen Yang Dong Leng Ziyu Li Jiaman Zhang PengliangLiu Zhoulin Wu Mengnan He Yan Li Hua Kui Xue Bai Bo Zeng Yao Zhang Qing Zhu XiaolingZhao Mingzhou Li Diyan Li 《Journal of Integrative Agriculture》 2026年第1期207-226,共20页
The development of skeletal muscle are complicated processes involving genes responsible for proper muscle morphology,contractility,cell proliferation,differentiation,interactions,migration,and death.The three-dimensi... The development of skeletal muscle are complicated processes involving genes responsible for proper muscle morphology,contractility,cell proliferation,differentiation,interactions,migration,and death.The three-dimensional chromatin architecture of skeletal muscle development has not been studied intensively although dynamic transcriptional regulation during differentiation of muscle cells is one of the most deeply studied processes.The RNA-seq was used to analyze the transcriptome pattern during chicken muscle development across 12 stages.Hi-C was used to build chromatin architectures during four representative stages.Ch IP-seq was conducted to identify enhancers and promoters in these four stages,which are occupied by histone H3K27ac and H3K4me3 peaks.Results show that large-scale genome architecture changes are mostly unidirectional,and coupled by complex on/off dynamic patterns of gene expression.Specifically,we observed 258.30 Mb of the genome undergoing A/B compartment switching.Notable alterations(316.57 Mb)of interaction frequencies within TADs were observed.Substantial aging-associated genes exhibited ascending connectivity with the compartment transition from repressive to active status during muscle development.Some muscle-related gene promoters that interacted with active enhancers during development,and some myopathy/aging-associated genes that were activated in aging muscle were founded.These results provide key insights into skeletal muscle development in vivo,and offer a valuable resource that allows in-depth functional characterization of candidate genes. 展开更多
关键词 skeletal muscle development gene expression chromatin architecture
在线阅读 下载PDF
Current Situation of Application and Development Prospects of the Statistical Analysis of Big Data
20
作者 Zhuoran LI 《Meteorological and Environmental Research》 2026年第1期45-47,共3页
With the advent of the big data era,modern statistics has enjoyed unprecedented development opportunities and also faced numerous new challenges.Traditional statistical computing methods are often limited by issues su... With the advent of the big data era,modern statistics has enjoyed unprecedented development opportunities and also faced numerous new challenges.Traditional statistical computing methods are often limited by issues such as computer memory capacity and distributed storage of data across different locations,and are unable to directly apply to large-scale data sets.Therefore,in the context of big data,designing efficient and theoretically guaranteed statistical learning and inference algorithms has become a key issue that the current field of statistics urgently needs to address.In this paper,the application status of statistical analysis methods in the big data environment was systematically reviewed,and its future development directions were analyzed to provide reference and support for the further development of theory and methods of the statistical analysis of big data. 展开更多
关键词 Big data Statistical analysis Current status development prospects
在线阅读 下载PDF
上一页 1 2 250 下一页 到第
使用帮助 返回顶部