期刊文献+
共找到419,486篇文章
< 1 2 250 >
每页显示 20 50 100
Facile Semiconductor p-n Homojunction Nanowires with Strategic p-Type Doping Engineering Combined with Surface Reconstruction for Biosensing Applications
1
作者 Liuan Li Shi Fang +12 位作者 Wei Chen Yueyue Li Mohammad Fazel Vafadar Danhao Wang Yang Kang Xin Liu Yuanmin Luo Kun Liang Yiping Dang Lei Zhao Songrui Zhao Zongzhi Yin Haiding Sun 《Nano-Micro Letters》 SCIE EI CAS CSCD 2024年第10期15-30,共16页
Photosensors with versatile functionalities have emerged as a cornerstone for breakthroughs in the future optoelectronic systems across a wide range of applications.In particular,emerging photoelectrochemical(PEC)-typ... Photosensors with versatile functionalities have emerged as a cornerstone for breakthroughs in the future optoelectronic systems across a wide range of applications.In particular,emerging photoelectrochemical(PEC)-type devices have recently attracted extensive interest in liquid-based biosensing applications due to their natural electrolyte-assisted operating characteristics.Herein,a PEC-type photosensor was carefully designed and constructed by employing gallium nitride(GaN)p-n homojunction semiconductor nanowires on silicon,with the p-GaN segment strategically doped and then decorated with cobalt-nickel oxide(CoNiO_(x)).Essentially,the p-n homojunction configuration with facile p-doping engineering improves carrier separation efficiency and facilitates carrier transfer to the nanowire surface,while CoNiO_(x)decoration further boosts PEC reaction activity and carrier dynamics at the nanowire/electrolyte interface.Consequently,the constructed photosensor achieves a high responsivity of 247.8 mA W^(-1)while simultaneously exhibiting excellent operating stability.Strikingly,based on the remarkable stability and high responsivity of the device,a glucose sensing system was established with a demonstration of glucose level determination in real human serum.This work offers a feasible and universal approach in the pursuit of high-performance bio-related sensing applications via a rational design of PEC devices in the form of nanostructured architecture with strategic doping engineering. 展开更多
关键词 p-n GaN nanowires strategic p-doping Surface decoration Photoelectrochemical sensor Glucose sensing
下载PDF
Construction of a Multi-Level Strategic System for Cultivating Cultural Industry Management Talents in Colleges and Universities
2
作者 Zhenzhen Hu Tao Zhou 《Journal of Contemporary Educational Research》 2024年第10期75-82,共8页
Through SWOT(strengths,weaknesses,opportunities,and threats)and PEST(political,economic,social,and technological)analysis,this study discusses the construction of a multi-level strategic system for the cultivation of ... Through SWOT(strengths,weaknesses,opportunities,and threats)and PEST(political,economic,social,and technological)analysis,this study discusses the construction of a multi-level strategic system for the cultivation of cultural industry management talents in colleges and universities.First of all,based on SWOT analysis,it is found that colleges and universities have rich educational resources and policy support,but they face challenges such as insufficient practical teaching and intensified international competition.External opportunities come from the rapid development of the cultivation of cultural industry management talents and policy promotion,while threats come from global market competition and talent flow.Secondly,PEST analysis reveals the key factors in the macro-environment:at the political level,the state vigorously supports the cultivation of cultural industry management talents;at the economic level,the market demand for cultural industries is strong;at the social level,the public cultural consumption is upgraded;at the technological level,digital transformation promotes industry innovation.On this basis,this paper puts forward a multi-level strategic system covering theoretical education,practical skill improvement,interdisciplinary integration,and international vision training.The system aims to solve the problems existing in talent training in colleges and universities and cultivate high-quality cultural industry management talents with theoretical knowledge,practical skills,and global vision,so as to adapt to the increasingly complex and diversified cultural industry management talents market demand and promote the long-term development of the industry. 展开更多
关键词 Cultural industry management talents Personnel training Multi-level strategic system
下载PDF
Building a Business and Strategic Intelligence Policy as a Strategy for Promoting Congolese Business Progress and Healthy Economic Development in Eastern DRC
3
作者 Innocent Bora Uzima 《Intelligent Information Management》 2024年第2期77-103,共27页
The aim of this study was to verify the existence of business and strategic intelligence policies at the level of Congolese companies and at the state level, likely to foster progress and healthy development in the ea... The aim of this study was to verify the existence of business and strategic intelligence policies at the level of Congolese companies and at the state level, likely to foster progress and healthy development in the east of the DRC. The study was based on a mixed perspective consisting of objective analysis of quantitative data and interpretative analysis of qualitative data. The results showed that business and strategic intelligence policies have not been established at either company or state level, as this is an area of activity that is not known to the players in companies and public departments, and there are no units or offices in their organizational structures responsible for managing strategic information for competitiveness on the international market. In addition, there is a real need to establish strategic information management units within companies, upstream, and to set up a national strategic information management department or agency to help local companies compete in the marketplace, downstream. This reflects the importance and timeliness of building business and strategic intelligence policies to ensure economic progress and development in the eastern DRC. Business and strategic intelligence provides companies with an appropriate tool for researching, collecting, processing and disseminating information useful for decision-making among stakeholders, in order to cope with a crisis or competitive situation. The study suggests a number of key recommendations based on its findings. To the government, it is recommended to establish the national policy of business and strategic intelligence by setting up a national agency of strategic intelligence in favor of local companies;and to companies to establish business intelligence units in their organizational structures in favor of stakeholders to foster advantageous decision-making in the competitive market and achieve progress. Finally, the study suggests that studies be carried out to fully understand the opportunities and impact of business and strategic intelligence in African countries, particularly in the DRC. 展开更多
关键词 Business and strategic Intelligence strategic Information Congolese Companies Public Departments Decision-Making Information Management Business and strategic Intelligence Policies PROGRESS Healthy Development Mining and Agriculture Sectors International Market Eastern DRC
下载PDF
Strategic Analysis on the Construction of Class Culture in Colleges and Universities
4
作者 Li Zhang 《Journal of Contemporary Educational Research》 2021年第10期6-11,共6页
In schools,the basic unit is a class,and each class is composed of different groups of students.In order to strengthen college education and improve the quality of education,it is necessary to conduct a comprehensive ... In schools,the basic unit is a class,and each class is composed of different groups of students.In order to strengthen college education and improve the quality of education,it is necessary to conduct a comprehensive analysis and research on classes.A variety of organizations of college students constitute classes.As the manifestation of these organizations,classes carry out ideological and political education for students.In order to promote students 125 progress and development,an excellent class culture should be established.On that premise,it is necessary to strengthen ideological and political education for students,ensure more coordination between education and culture,as well as improve students9 cultural literacy,management system,and the safety of campus life.This study focuses on the strategy of building class culture in colleges and universities,hoping that relevant staffs may be able to use this as a reference. 展开更多
关键词 Classes in colleges and xiniversities Cultural construction Strategy analysis
下载PDF
Analysis of top Chinese contractors' developmental tracks and evaluation of their strategic selection of international construction markets
5
作者 Wu Weiwei David A.S. Chew +1 位作者 Li Qiming Zhong Yuan 《Engineering Sciences》 EI 2008年第4期80-86,96,共8页
The past decade has witnessed a rapid development of the international construction market. This research aims to investigate top Chinese contractors' developmental tracks and evaluate their strategic selection of... The past decade has witnessed a rapid development of the international construction market. This research aims to investigate top Chinese contractors' developmental tracks and evaluate their strategic selection of international construction markets over the period from 2001 to 2006,based on the modified Boston Consulting Group Matrix (BCG). Results from 2001 to 2005 indicate that Asia and Africa,which were "question marks" markets for top Chinese contractors (abbreviated as TCCs),have the most potential to become "stars" markets; other question marks markets such as the Middle East and Europe are found not to be of potential; "dogs" markets such as the U.S.,Canada and Latin America should be relinquished progressively unless there is renewed growth opportunity over the next two years. Compared to developmental tracks of top contractors from some advanced countries,TCCs' investment and development strategy in Africa seems to be sustainable and intensive; TCCs' exit strategy for the Middle East appears determined and swift,while their strategy in Asia seems to be lacking in persistence. Furthermore,the data of 2006 indicates that TCCs improve their performance in Asia and Africa,and Africa has become a "stars" market for TCCs.This research sheds important lights and insights into the prevailing process of internationalization of TCCs and provides a strategic direction for their selection of international construction market. What is more,this research is also valuable to other Chinese contractors who are seeking the opportunity to enter the international construction markets. 展开更多
关键词 international development construction industry developmental tracks top Chinese contractors China
下载PDF
Using the Balanced Scorecard as a Strategic Management System in the Libyan Construction Industry
6
作者 Abdussalam Shibani Nawal Gherbal 《Management Studies》 2018年第1期1-19,共19页
Libya is a developing country that has a growing construction industry, however, the management of construction projects frequently experiences challenges with time and cost restraints and this affects the overall per... Libya is a developing country that has a growing construction industry, however, the management of construction projects frequently experiences challenges with time and cost restraints and this affects the overall performance of the project as well as the performance of the project managers. The main aim of this paper is to apply BSC in the Libyan construction industry and evaluate the factors that impact project manager performance and their ability to complete and deliver projects successfully in Libya. This study will ascertain the role of project managers, the challenges that project managers in Libya frequently encounter the cause of time and cost overruns within construction projects and the main factors for successful construction projects. This research adopted both quantitative and qualitative research methods. The findings are based upon 300 structured questionnaires distributed to general, project managers working on construction sectors in Libya (Tripoli). Completed questionnaires received were 183. This is a response rate of 61%. A statistical analysis was used to confirm and address the issues of reliability and validity of the questionnaire survey as a measuring instrument. In addition structured interviews with qualified project managers were used to confirm that the data collected were truly reflective. Upon the data analysis from the questionnaire survey and structured interview the project manager is the most important factor affecting the success of the project in construction industries Libya, furthermore project manager skills are important components that influence the performance of project manager. 展开更多
关键词 BSC Libya questionnaires survey construction industry qualitative research
下载PDF
Strategic Measures for Implementing 300 Demonstration Projects to Lead the Construction of Modern Agricultural Industrial Clusters with Output of 100 Billion Yuan
7
作者 Ying GAO Changjia PENG +4 位作者 Fengyuan LI Jun LUO Jiawei DU Feng LUO Ning LU 《Asian Agricultural Research》 2018年第11期14-22,共9页
To carefully implement the rural revitalization strategy,further promote the structural reform of the agricultural supply front,implement the "155 Development Strategy",speed up the cultivation of the modern... To carefully implement the rural revitalization strategy,further promote the structural reform of the agricultural supply front,implement the "155 Development Strategy",speed up the cultivation of the modern agricultural industrial clusters with output of 100 billion yuan,and constantly consolidate the industrial foundation of the " Second City in Chengdu-Chongqing Line",the Municipal Party Committee and the Municipal Government of Nanchong City decided to implement the " 300 Demonstration Projects" of modern agriculture. It firmly grasps the " bull nose"( key part) of the project,energetically implements the construction of 100 modern circular agricultural demonstration parks,100 agricultural leading enterprises with output value of 100 billion yuan,and 100 agricultural new business model demonstration projects( hereinafter referred to as 300 Demonstration Projects),to realize the goal of the output value of the modern agriculture industrial clusters of Nanchong City exceeds 100 billion yuan in 2020. 展开更多
关键词 农村 振兴战略 供应链 结构改革
下载PDF
On the Construction of Knowledge Ecology Models in the Strategic Change from Traditional Enterprises to Innovative Enterprises from the Perspective of Combination Innovation
8
作者 Liu Yan Li Yuntao 《学术界》 CSSCI 北大核心 2015年第7期282-286,共5页
The paper expounds the extensive ecological process of knowledge creation in the strategic change from traditional enterprises to innovative enterprises from the perspective of integrating innovation,analyzes the syst... The paper expounds the extensive ecological process of knowledge creation in the strategic change from traditional enterprises to innovative enterprises from the perspective of integrating innovation,analyzes the systematic integration process of the three links including knowledge preparation,knowledge production and knowledge diffusion in the two different change paths of integrated innovation and digestive absorption innovation,and establishes the knowledge ecology models in different paths. 展开更多
关键词 传统企业 知识创造 创新型 生态模式 生态学模型 生态过程 集成过程 知识扩散
下载PDF
Properties and Characteristics of Regolith-Based Materials for Extraterrestrial Construction 被引量:1
9
作者 Cheng Zhou Yuyue Gao +4 位作者 Yan Zhou Wei She Yusheng Shi Lieyun Ding Changwen Miao 《Engineering》 SCIE EI CAS CSCD 2024年第6期159-181,共23页
The construction of extraterrestrial bases has become a new goal in the active exploration of deep space.Among the construction techniques,in situ resource-based construction is one of the most promising because of it... The construction of extraterrestrial bases has become a new goal in the active exploration of deep space.Among the construction techniques,in situ resource-based construction is one of the most promising because of its good sustainability and acceptable economic cost,triggering the development of various types of extraterrestrial construction materials.A comprehensive survey and comparison of materials from the perspective of performance was conducted to provide suggestions for material selection and optimization.Thirteen types of typical construction materials are discussed in terms of their reliability and applicability in extreme extraterrestrial environment.Mechanical,thermal and optical,and radiation-shielding properties are considered.The influencing factors and optimization methods for these properties are analyzed.From the perspective of material properties,the existing challenges lie in the comprehensive,long-term,and real characterization of regolith-based construction materials.Correspondingly,the suggested future directions include the application of high-throughput characterization methods,accelerated durability tests,and conducting extraterrestrial experiments. 展开更多
关键词 Extraterrestrial construction Characterization Mechanical property Thermal property Optical property Radiation-shielding
下载PDF
A comprehensive review of lunar lava tube base construction and field research on a potential Earth test site 被引量:1
10
作者 Yujie Feng Peng-Zhi Pan +3 位作者 Xuhai Tang Zhaofeng Wang Yuxin Li Altaf Hussain 《International Journal of Mining Science and Technology》 SCIE EI CAS CSCD 2024年第9期1201-1216,共16页
The Moon,as the closest celestial body to the Earth,plays a pivotal role in the progression of deep space exploration,and the establishment of research outposts on its surface represents a crucial step in this mission... The Moon,as the closest celestial body to the Earth,plays a pivotal role in the progression of deep space exploration,and the establishment of research outposts on its surface represents a crucial step in this mission.Lunar lava tubes are special underground caves formed by volcanic eruptions and are considered as ideal natural shelters and scientific laboratories for lunar base construction.This paper begins with an in-depth overview of the geological origins,exploration history,and distribution locations of lunar lava tubes.Subsequently,it delves into the presentation of four distinctive advantages and typical concepts for constructing bases within lava tubes,summarizing the ground-based attempts made thus far in lunar lava tube base construction.Field studies conducted on a lava tube in Hainan revealed rock compositions similar to those found during the Apollo missions and clear lava tube structures,making it a promising analog site.Lastly,the challenges and opportunities encountered in the field of geotechnical engineering regarding the establishment of lunar lava tube bases are discussed,encompassing cave exploration technologies,in-situ testing methods,geomechanical properties under lunar extreme environments,base design and structural stability assessment,excavation and reinforcement techniques,and simulated Earth-based lava tube base. 展开更多
关键词 Lunar lava tube Lunar base construction Extraterrestrial cave exploration Earth analog site
下载PDF
Subsurface multi-physical characterization of mountain excavation and city construction in loess plateau with a fiber-optic sensing system 被引量:1
11
作者 Jie Liu Bin Shi +3 位作者 Kai Gu Meng-Ya Sun Jun-Cheng Yao He-Ming Han 《Journal of Rock Mechanics and Geotechnical Engineering》 SCIE CSCD 2024年第8期2935-2946,共12页
Mountain excavation and city construction(MECC)projects being launched in the Loess Plateau in China involve the creation of large-scale artificial land.Understanding the subsurface evolution characteristics of the ar... Mountain excavation and city construction(MECC)projects being launched in the Loess Plateau in China involve the creation of large-scale artificial land.Understanding the subsurface evolution characteristics of the artificial land is essential,yet challenging.Here,we use an improved fiber-optic monitoring system for its subsurface multi-physical characterization.The system enables us to gather spatiotemporal distribution of various parameters,including strata deformation,temperature,and moisture.Yan’an New District was selected as a case study to conduct refined in-situ monitoring through a 77 m-deep borehole and a 30 m-long trench.Findings reveal that the ground settlement involves both the deformation of the filling loess and the underlying intact loess.Notably,the filling loess exhibits a stronger creep capability compared to underlying intact loess.The deformation along the profile is unevenly distributed,with a positive correlation with soil moisture.Water accumulation has been observed at the interface between the filling loess and the underlying intact loess,leading to a significant deformation.Moreover,the temperature and moisture in the filling loess have reached a new equilibrium state,with their depths influenced by atmospheric conditions measuring at 31 m and 26 m,respectively.The refined investigation allows us to identify critical layers that matter the sustainable development of newly created urban areas,and provide improved insights into the evolution mechanisms of land creation. 展开更多
关键词 Mountain excavation and city construction Fiber-optic monitoring Multi-physical characterization Compacted loess
下载PDF
Intelligent Sensing and Control of Road Construction Robot Scenes Based on Road Construction
12
作者 Zhongping Chen Weigong Zhang 《Structural Durability & Health Monitoring》 EI 2024年第2期111-124,共14页
Automatic control technology is the basis of road robot improvement,according to the characteristics of construction equipment and functions,the research will be input type perception from positioning acquisition,real... Automatic control technology is the basis of road robot improvement,according to the characteristics of construction equipment and functions,the research will be input type perception from positioning acquisition,real-world monitoring,the process will use RTK-GNSS positional perception technology,by projecting the left side of the earth from Gauss-Krueger projection method,and then carry out the Cartesian conversion based on the characteristics of drawing;steering control system is the core of the electric drive unmanned module,on the basis of the analysis of the composition of the steering system of unmanned engineering vehicles,the steering system key components such as direction,torque sensor,drive motor and other models are established,the joint simulation model of unmanned engineering vehicles is established,the steering controller is designed using the PID method,the simulation results show that the control method can meet the construction path demand for automatic steering.The path planning will first formulate the construction area with preset values and realize the steering angle correction during driving by PID algorithm,and never realize the construction-based path planning,and the results show that the method can control the straight path within the error of 10 cm and the curve error within 20 cm.With the collaboration of various modules,the automatic construction simulation results of this robot show that the design path and control method is effective. 展开更多
关键词 Scene perception remote control technology cartesian coordinate system construction robot highway construction
下载PDF
Promoting grain production through high-standard farmland construction:Evidence in China
13
作者 Shuai Hao Guogang Wang +4 位作者 Yantao Yang Sicheng Zhao Shengnan Huang Liping Liu Huanhuan Zhang 《Journal of Integrative Agriculture》 SCIE CSCD 2024年第1期324-335,共12页
Food security is a strategic priority for a country’s economic development.In China,high-standard farmland construction(HSFC)is an important initiative to stabilize grain production and increase grain production capa... Food security is a strategic priority for a country’s economic development.In China,high-standard farmland construction(HSFC)is an important initiative to stabilize grain production and increase grain production capacity.Based on panel data from 31 sample provinces,autonomous regions,and municipalities in China from 2005–2017,this study explored the impact of HSFC on grain yield using the difference-in-differences(DID)method.The results showed that HSFC significantly increased total grain production,which is robust to various checks.HSFC increased grain yield through three potential mechanisms.First,it could increase the grain replanting index.Second,it could effectively reduce yield loss due to droughts and floods.Last,HSFC could strengthen the cultivated land by renovating the low-and medium-yielding fields.Heterogeneity analysis found that the HSFC farmland showed a significant increase in grain yield only in the main grain-producing areas and balanced areas.In addition,HSFC significantly increased the yields of rice,wheat,and maize while leading to a reduction in soybean yields.The findings suggest the government should continue to promote HSFC,improve construction standards,and strictly control the“non-agriculturalization”and“non-coordination”of farmland to increase grain production further.At the same time,market mechanisms should be used to incentivize soybean farming,improve returns and stabilize soybean yields. 展开更多
关键词 high-standard farmland farmland construction food security food production area DIFFERENCE-IN-DIFFERENCES
下载PDF
Application of Modern Construction Art in Landscape Architecture Planning and Design
14
作者 JIANG Yuanyuan 《Journal of Landscape Research》 2024年第3期43-47,共5页
The continuous progress of urbanization has driven the continuous development and innovation of landscape planning and design.Focused on the important design method of modern construction art,this study analyzed its c... The continuous progress of urbanization has driven the continuous development and innovation of landscape planning and design.Focused on the important design method of modern construction art,this study analyzed its concepts and characteristics,and made deep exploration to its application in landscape planning and design.The results indicated that modern construction art had a significant impact on landscape spatial planning and layout,spatial design forms,and spatial ornaments.The use of modern construction art concepts could make landscape design more scientific,artistic,and humane,creating higher quality leisure and entertainment venues for audiences. 展开更多
关键词 Landscape architecture design Modern construction art construction Art
下载PDF
Asia-Pacific Security Situation and Strategic Response Under Great Changes
15
作者 Zhang Jie 《Contemporary World》 2024年第2期19-23,共5页
Our world today is going through accelerated transformation unseen in a century.The new round of scientific and technological revolution and industrial transformation is gaining steam,the international balance of powe... Our world today is going through accelerated transformation unseen in a century.The new round of scientific and technological revolution and industrial transformation is gaining steam,the international balance of power is undergoing profound adjustment,and China’s development is facing new strategic opportunities. 展开更多
关键词 GREAT strategic RESPONSE
下载PDF
“Instruction-Category” Approach of Test Suite Construction for Oven Embedded System
16
作者 Mengqing Tanli Jiyi Xiao Ying Zhang 《Journal of Software Engineering and Applications》 2024年第9期713-730,共18页
Being different from testing for popular GUI software, the “instruction-category” approach is proposed for testing embedded system. This approach is constructed by three steps including refining items, drawing instr... Being different from testing for popular GUI software, the “instruction-category” approach is proposed for testing embedded system. This approach is constructed by three steps including refining items, drawing instruction-brief and instruction-category, and constructing test suite. Consequently, this approach is adopted to test oven embedded system, and detail process is deeply discussed. As a result, the factual result indicates that the “instruction-category” approach can be effectively applied in embedded system testing as a black-box method for conformity testing. 展开更多
关键词 “Instruction-Category” Approach Test Suite construction Embedded System
下载PDF
Strengthening Ties, Shaping Futures The strategic evolution of Malaysia-China relations
17
作者 Voon Miaw Ping 《China Report ASEAN》 2024年第6期52-53,共2页
In the annals of diplomacy,few narratives are as compelling as that of Malaysia-China relations:a saga of cooperation and mutual respect that has endured for over five decades.Rooted in the historic visit of second Pr... In the annals of diplomacy,few narratives are as compelling as that of Malaysia-China relations:a saga of cooperation and mutual respect that has endured for over five decades.Rooted in the historic visit of second Prime Minister Tun Abdul Razak to China in May 1974,this relationship has blossomed into a multifaceted partnership bolstered by visionary leadership and a commitment to shared prosperity. 展开更多
关键词 mutual MALAYSIA strategic
下载PDF
Strategic Planning Practices of Hotels in Kenya
18
作者 Lilian M.Gikutha Florence W.Njau Naghea Jilo 《Journal of Tourism and Hospitality Management》 2024年第1期12-17,共6页
This study broadens perspectives of strategic planning procedures in hotels by analyzing hotel managers’perspectives on hotel strategy formulation and planning.The study was a descriptive quantitative study that targ... This study broadens perspectives of strategic planning procedures in hotels by analyzing hotel managers’perspectives on hotel strategy formulation and planning.The study was a descriptive quantitative study that targeted managers from various Kenyan hotels.180 questionnaires were returned from a sample of 280 hotel managers who had attended management development programs at a hospitality school.The primary goal of the study was to analyze two aspects of the strategic planning process:strategy formulation and strategic planning.The findings revealed that hotels in Kenya have developed methods and are keen on scanning their external environments.However,with the product offerings being so comparable,competitive analysis played an important role in the context.Creating a unique or specialty offering was not a popular option for most hotels.Cost-cutting was the most favored strategic inclination to achieve desired results.The balanced scorecard was underutilized in the sector.While managers were involved in the strategic planning process,other lower cadre employees were not,they were provided with the targets for the hotels’organizational goals to be achieved.The findings reveal that with similar products and services,the industry creates a hostile business climate with fierce rivalry and must invest in the most obvious alternative of cost reduction to survive.Alternative product innovation is not common in this industry for developing a differentiation approach that allows a property to control a market. 展开更多
关键词 HOTELS strategy formulation strategic planning
下载PDF
Lunar In Situ Large-Scale Construction:Quantitative Evaluation of Regolith Solidification Techniques
19
作者 Charun Bao Daobo Zhang +2 位作者 Qinyu Wang Yifei Cui Peng Feng 《Engineering》 SCIE EI CAS CSCD 2024年第8期204-221,共18页
Lunar habitat construction is crucial for successful lunar exploration missions.Due to the limitations of transportation conditions,extensive global research has been conducted on lunar in situ material processing tec... Lunar habitat construction is crucial for successful lunar exploration missions.Due to the limitations of transportation conditions,extensive global research has been conducted on lunar in situ material processing techniques in recent years.The aim of this paper is to provide a comprehensive review,precise classification,and quantitative evaluation of these approaches,focusing specifically on four main approaches:reaction solidification(RS),sintering/melting(SM),bonding solidification(BS),and confinement formation(CF).Eight key indicators have been identified for the construction of low-cost and highperformance systems to assess the feasibility of these methods:in situ material ratio,curing temperature,curing time,implementation conditions,compressive strength,tensile strength,curing dimensions,and environmental adaptability.The scoring thresholds are determined by comparing the construction requirements with the actual capabilities.Among the evaluated methods,regolith bagging has emerged as a promising option due to its high in situ material ratio,low time requirement,lack of hightemperature requirements,and minimal shortcomings,with only the compressive strength falling below the neutral score.The compressive strength still maintains a value of 2–3 MPa.The proposed construction scheme utilizing regolith bags offers numerous advantages,including rapid and large-scale construction,ensured tensile strength,and reduced reliance on equipment and energy.In this study,guidelines for evaluating regolith solidification techniques are provided,and directions for improvement are offered.The proposed lunar habitat design based on regolith bags is a practical reference for future research. 展开更多
关键词 Lunar habitats Lunar in situ construction Regolith bag Solidification and formation In situ materials Evaluation method
下载PDF
Science and Technology Promotion Policies of Strategic Emerging Industries in Anhui Province
20
作者 Wenming SUN 《Meteorological and Environmental Research》 2024年第4期5-7,共3页
In recent years,based on advantages of industry,market,science and technology and other development environment,strategic emerging industries in Anhui Province are developing rapidly,and emerging industries such as ne... In recent years,based on advantages of industry,market,science and technology and other development environment,strategic emerging industries in Anhui Province are developing rapidly,and emerging industries such as new energy,new materials,new generation of information technology occupy an important market share in China and even the world.However,there are still a number of problems in the process of development,and the policy support has a greater impact.In this paper,the development status of strategic emerging industries in Anhui Province was discussed firstly,and then the challenges and problems of the development was discussed.Finally,some science and technology promotion policies of strategic emerging industries in Anhui Province were proposed. 展开更多
关键词 strategic emerging industries Market competitiveness Policy support
下载PDF
上一页 1 2 250 下一页 到第
使用帮助 返回顶部