期刊文献+
任意字段
题名或关键词
题名
关键词
摘要
作者
第一作者
机构
刊名
分类号
参考文献
作者简介
基金资助
栏目信息
共找到25篇文章
< 1 2 >
每页显示 20 50 100
已选0条
引用分析
参考文献
引证文献
 统计分析
检索结果
已选文献
显示方式：
Optimization of Construction Technology and Deformation Control for Deep Foundation Pit Support in Soft Soil Regions 认领 引用
1
作者 WANG Jia 《外文科技期刊数据库（文摘版）工程技术》 2026年第4期030-034,共5页
Deep foundation pit engineering in soft soil regions faces significant challenges in deformation control due to complex geological conditions. This study focuses on the systematic optimization of support construction ... Deep foundation pit engineering in soft soil regions faces significant challenges in deformation control due to complex geological conditions. This study focuses on the systematic optimization of support construction techniques, aiming to achieve the core objective of effective deformation control. By integrating geological survey data, numerical simulations, and field monitoring information, the research establishes an optimization pathway spanning from design parameter adjustments to dynamic construction management. The findings indicate that precise matching of support structure parameters, dynamic optimization of earth excavation sequences, and coordinated groundwater management are critical for deformation control. The primary contribution of this study lies in proposing a deformation control technical framework based on real-time feedback throughout the entire project lifecycle, with its reliability validated through typical engineering cases. This provides a theoretical foundation and technical reference for safe deep foundation pit construction under similar geological conditions. 展开更多
关键词 soft soil deep foundation pit deformation control support technology optimization dynamic construction monitoring and feedback
暂未订购 下载PDF
Cold storage systems integrated with phase change technology 认领 引用
2
作者 Xiao Yang Baoshan Xie +3 位作者 Xikang Xie Lijin Zhou Yuanxin He Chuanchang Li 《International Journal of Minerals,Metallurgy and Materials》 SCIE EI CAS CSCD 2026年第6期1785-1806,共22页
Market demand for cold storage systems,a critical component of modern cold-chain logistics,is rapidly expanding.Phase change cold technology offers a low-carbon route for energy savings in cold storage systems and is ... Market demand for cold storage systems,a critical component of modern cold-chain logistics,is rapidly expanding.Phase change cold technology offers a low-carbon route for energy savings in cold storage systems and is now a major research focus.This paper outlines the application of cold storage technology,systematically reviews the characteristics of three types of phase change materials(PCMs),and provides a comparative analysis of their advantages and disadvantages.It elaborates on key techniques for enhancing material properties and details the primary encapsulation strategies to address engineering challenges.This study categorizes cold storage systems into active and passive types,and identifies refrigeration units and external heat ingress as the primary sources of energy consumption.Based on this classification,three specific application scenarios for integrating PCMs into cold storage systems are clearly outlined.This study provides a comprehensive summary and analysis of the current development prospects and challenges of phase change cold storage technology.It proposes that future research should prioritize the development of high-performance PCMs,optimization of cold storage panel arrangements,and studies on system-level integration. 展开更多
关键词 phase change cold storage materials optimization technology encapsulation technology cold storage systems
暂未订购 下载PDF
Optimization Design System for Composite Structures Based on Grid Technology 认领 引用
3
作者 CHENG Wen-yuan CHANG Yan +1 位作者 CUI De-gang XIE Xiang-hui 《Chinese Journal of Aeronautics》 SCIE EI CAS 2007年第1期55-59,共5页
To solve the topology optimization of complicated multi-objective continuous/discrete design variables in aircmit structure design, a Parallel Pareto Genetic Algorithm （PPGA） is presented based on grid platform in t... To solve the topology optimization of complicated multi-objective continuous/discrete design variables in aircmit structure design, a Parallel Pareto Genetic Algorithm （PPGA） is presented based on grid platform in this paper. In the algorithm, the commercial finite element analysis （FEA） software is integrated as the calculating tool for analyzing the objective functions and the filter of Pareto solution set based on weight information is introduced to deal with the relationships among all objectives. Grid technology is utilized in PPGA to realize the distributed computations and the user interface is developed to realize the job submission and job management locallyemotely. Taking the aero-elastic tailoring of a composite wing for optimization as an example, a set of Pareto solutions are obtained for the decision-maker. The numerical results show that the aileron reversal problem can be solved by adding the limited skin weight in this system. The algorithm can be used to solve complicated topology optimization for composite structures in engineering and the computation efficiency can be improved greatly by using the grid platform that aggregates numerous idle resources. 展开更多
关键词 multi-objective optimization omposite material： grid technology, enetic algorithm
暂未订购 下载PDF
Optimization of Extraction Technology for Rice Bran Oil 认领 引用 被引量：1
4
作者 Hongrui LI Hai GUO +1 位作者 Liqin ZHU Yonggen SHEN 《Agricultural Biotechnology》 2013年第5期52-54,57,共3页
[ Objective ] This study aimed to optimize the extraction technology for rice bran oil. [ Method ] Using rice bran as raw material, effects of ultrasonicassisted extraction technology and different organic solvents, e... [ Objective ] This study aimed to optimize the extraction technology for rice bran oil. [ Method ] Using rice bran as raw material, effects of ultrasonicassisted extraction technology and different organic solvents, extraction durations, solid-liquid ratios and extraction temperatures on extraction results of rice bran oil were investigated. Based on the results of single-factor experiment, L9 （34 ） orthngonal experiment with three factors at three levels was conducted to optimize the extraction technological parameters, thus obtaining the optimal technological conditions for extracting rice bran oil. [ Result] Anhydrous ethanol led to the best extraction result; after ultrasonic treatment, the extraction rate of rice bran oil from raw material was not enhanced. The optimized technological parameters were ： extraction temperature of 80 ℃, extraction duration of 20 rain and solid-liquid ratio of 1：24 （ g： ml）. Under the optimized technological conditions, the extraction rate of rice bran oil reached 19.33%. [ Conclusion] This study laid solid foundation for further investigation and development of rice bran oil. 展开更多
关键词 Rice bran Rice bran oil Optimal extraction technology
暂未订购 下载PDF
Discussion on the Application of Optimization Technology in Building Structure Design 认领 引用
5
作者 QIU Junxiong 《外文科技期刊数据库（文摘版）工程技术》 2021年第10期711-714,共4页
With the improvement of China's urbanization development level, large cities continue to add high-rise buildings, which can alleviate the problem of land shortage in large cities. The structural design of high-ris... With the improvement of China's urbanization development level, large cities continue to add high-rise buildings, which can alleviate the problem of land shortage in large cities. The structural design of high-rise buildings has always been the focus of attention in this field. If it is not handled properly, it may affect the structural stability and even cause serious problems. In order to promote the design of high-rise building structure more scientific, this paper deeply studies the common problems in its design process, and gives appropriate solutions, hoping to provide some reference value for improving the quality of high-rise building structure design. 展开更多
关键词 housing construction structural design optimization technology application
暂未订购 下载PDF
Application of Optimization Technology in Building Structure Design 认领 引用
6
作者 LI Hang 《外文科技期刊数据库（文摘版）工程技术》 2021年第2期177-181,共5页
With the increasing pursuit of people's living quality and living environment, people pay more attention to the building structure when choosing houses. Based on this, many real estate developers pay more attentio... With the increasing pursuit of people's living quality and living environment, people pay more attention to the building structure when choosing houses. Based on this, many real estate developers pay more attention to people's aesthetic requirements of building structure when designing houses, so as to obtain greater economic benefits. Therefore, more manpower and energy are invested in the design of building structure financial and material resources, in the specific optimization design, the relevant designers need to pay attention to the overall structure of the house, ensure the quality of the house and reduce the cost as much as possible, so as to achieve greater economic benefits. 展开更多
关键词 housing construction structural design optimization technology
暂未订购 下载PDF
Research on Energy Saving Optimization Technology of Urban Rail Transit Train Operation 认领 引用
7
作者 ZHANGYongkun 《外文科技期刊数据库（文摘版）工程技术》 2022年第7期188-191,共4页
As a long-term strategic policy of Chinas social and economic development, energy conservation is also an important part of the sustainable development of rail transit construction and operation. With the large-scale ... As a long-term strategic policy of Chinas social and economic development, energy conservation is also an important part of the sustainable development of rail transit construction and operation. With the large-scale construction and opening and operation of domestic rail transit, rail transit has become a major energy consumption in various cities, and energy saving is imminent, and should be paid attention to for a long time. Starting from the operation organization of the rail transit, the relevant measures for the energy saving operation of the rail transit train are initially explored, and the energy saving measures of the traffic organization are put forward from many aspects and angles. However, due to the limitations of rail transit energy consumption measurement and equipment and related data accumulation, the energy saving effect of various driving organization measures cannot be quantitatively analyzed. 展开更多
关键词 urban rail transit train operation energy-saving optimization technology
暂未订购 下载PDF
Evaluation of Yarn Quality and Optimization of Cotton Spinning Parameter Based on Factors Analysis 认领 引用
8
作者 赵书林 《Journal of Donghua University(English Edition)》 EI CAS 2011年第3期340-342,共3页
In this paper, the spinning parameters are optimized by using the method of factor analysis. The yarns obtained from four different spinning parameters are evaluated by this method. Two common factors, fineness uneven... In this paper, the spinning parameters are optimized by using the method of factor analysis. The yarns obtained from four different spinning parameters are evaluated by this method. Two common factors, fineness unevenness and tenacity level, are extracted from the seven yarn-quality indexes. The accumulative contribution percentage of the two factors is up to 91.813%,and much information in the yarn-quality indexes is reflected by the two factors. Then the score of each factor is calculated to evaluate the quality of yarn. Based on that, the techniques are optimized. The result is well in line with spinning practices, so it is testified feasibly to use this method to optimize spinning parameter. 展开更多
关键词 technology optimization factor analysis yarn quality values of factors
暂未订购 下载PDF
Fault self-repair strategy based on evolvable hardware and reparation balance technology 认领 引用 被引量：13
9
作者 Zhang Junbin Cai Jinyan +1 位作者 Meng Yafeng Meng Tianzhen 《Chinese Journal of Aeronautics》 SCIE EI CAS CSCD 2014年第5期1211-1222,共12页
In the face of harsh natural environment applications such as earth-orbiting and deep space satellites, underwater sea vehicles, strong electromagnetic interference and temperature stress,the circuits faults appear ea... In the face of harsh natural environment applications such as earth-orbiting and deep space satellites, underwater sea vehicles, strong electromagnetic interference and temperature stress,the circuits faults appear easily. Circuit faults will inevitably lead to serious losses of availability or impeded mission success without self-repair over the mission duration. Traditional fault-repair methods based on redundant fault-tolerant technique are straightforward to implement, yet their area, power and weight cost can be excessive. Moreover they utilize all plug-in or component level circuits to realize redundant backup, such that their applicability is limited. Hence, a novel selfrepair technology based on evolvable hardware（EHW） and reparation balance technology（RBT） is proposed. Its cost is low, and fault self-repair of various circuits and devices can be realized through dynamic configuration. Making full use of the fault signals, correcting circuit can be found through EHW technique to realize the balance and compensation of the fault output-signals. In this paper, the self-repair model was analyzed which based on EHW and RBT technique, the specific self-repair strategy was studied, the corresponding self-repair circuit fault system was designed, and the typical faults were simulated and analyzed which combined with the actual electronic devices. Simulation results demonstrated that the proposed fault self-repair strategy was feasible. Compared to traditional techniques, fault self-repair based on EHW consumes fewer hardware resources, and the scope of fault self-repair was expanded significantly. 展开更多
关键词 Evolutionary algorithm Evolvable hardware Fault Self-repair Fault-tolerant Genetic algorithm particle swarm optimization Reparation balance technology
暂未订购 下载PDF
Probability Simulation Optimization Approach Using Orthogonal Genetic Algorithm 认领 引用
10
作者 WANG Yinling XING Lining YAN Shiliang 《Wuhan University Journal of Natural Sciences》 EI CAS 2006年第6期1481-1484,共4页
In order to solve the complex optimization problem dealing with uncertain phenomenon effectively, this paper presents a probability simulation optimization approach using orthogonal genetic algorithm. This approach sy... In order to solve the complex optimization problem dealing with uncertain phenomenon effectively, this paper presents a probability simulation optimization approach using orthogonal genetic algorithm. This approach synthesizes the computer simulation technology, orthogonal genetic algorithm and statistical test method faultlessly, which can solve complex optimization problem effectively. In this paper, the author gives the correlative conception of probability simulation optimization and describes the probability simulation optimization approach using orthogonal genetic algorithm in detail. Theoretically speaking, it has a strong rationality and maneuverability that can apply probability method in solving the complex optimization problems with uncertain phenomenon. In demonstration, the optimization performance of this method is better than other traditional methods. Simulation resuh suggests that the approach referred to this paper is feasible, correct and valid. 展开更多
关键词 simulation optimization orthogonal genetic algorithm statistical test computer simulation optimization technology
暂未订购 下载PDF
Technological Optimization of the Preparation of Imidacloprid 认领 引用
11
作者 闻建平 王长林 《Chinese Journal of Chemical Engineering》 SCIE EI CAS 2003年第5期604-607,共4页
In order to reduce the production cost of imidacloprid, the preparation technology for the direct com-bination of 2-chloro-5-chloromethylpyridine and 2-nitryliminoglyoxaline has been optimized in a 10 L stirred tank r... In order to reduce the production cost of imidacloprid, the preparation technology for the direct com-bination of 2-chloro-5-chloromethylpyridine and 2-nitryliminoglyoxaline has been optimized in a 10 L stirred tank reactor with a new solvent, butanone, and a new catalyst, benzyl triethyl-ammonium chloride (BTEAC), which was proved to be more profitable for the production of imidacloprid. Three main affecting factors (the reaction temper-ature, the molar ratio of BTEAC to 2-nitryliminoglyoxaline and the concentration of 2-nitryuminoglyoxaline) for the production of imidacloprid were investigated and the optimum operating conditions were found. Based on the above technological optimization, an industrial process for imidacloprid with a production capacity of 50 tons per year was put in operation using a 2500 L stirred tank reactor under the same operating conditions. Good yield and purity of imidacloprid was also obtained in the industrial production. 展开更多
关键词 imidacloprid 2-chloro-5-chloromethylpyridine 2-nitryliminoglyoxaline technological optimization
暂未订购 下载PDF
Study on Construction Technology of Large Diameter and Ultra-deep Cement Mixing Pile in Road Engineering 认领 引用
12
作者 BAO Zhen 《Journal of Highway and Transportation Research and Development(English Edition)》 2022年第4期10-15,共6页
As the soft soil in the Pearl River Delta area is deep,50cm diameter cement mixing pile composite foundation is often used for road engineering.A municipal road in Hongwan District of Zhuhai adopts a mixing pile with ... As the soft soil in the Pearl River Delta area is deep,50cm diameter cement mixing pile composite foundation is often used for road engineering.A municipal road in Hongwan District of Zhuhai adopts a mixing pile with a diameter of 80cm and a length of 27 m,which brings great difficulty to the construction of the project.In order to ensure the engineering quality,the bit optimization scheme was adopted to improve the blades from the conventional two layer and four groups of blades to three layer and six groups of blades.The projection direction of each layer of blades was vertical,which could increase the mixing times and improve the mixing uniformity.At the same time,double-channel teeth were added to effectively increase the smoothness of slurry flow.The optimized nozzle is improved from a nozzle located at the bottom of the drill bit to the left and right sides of the bottom of the drill pipe to effectively relieve the blockage of the nozzle and silt backflow and other problems.Optimize the grouting pressure.The grouting pressure is generally 0.4-0.6 MPa.After optimization,the upper limit of 0.6 MPa is used in the first stirring and spraying process,and 0.4 MPa is used in the second stirring and spraying process.The advantage is that in the first time of mixing,excess cement grout is ejected for mixing,and in the second time,the total grout dosage can be controlled by reducing the grouting pressure,which effectively improves the quality of pile body and controls the cost.Improve the drilling speed of drill pipe,accelerate the speed when sinking,slow down the speed when lifting,to ensure uniform soil mixing.Through the above measures,the strength of the mixing pile body is improved and the integrity of the pile body is guaranteed.Pile integrity,effective pile diameter,pile length,pile strength uniform accord with the design.The difficult problem of large diameter and deep cement mixing pile is solved,which provides a good reference value for similar engineering. 展开更多
关键词 road engineering technology optimization construction method cement mixing pile toothed bit
暂未订购 下载PDF
Optimization and Performance Analysis of Intelligent Video AI Dynamic 认领 引用
13
作者 Yu Xing 《Journal of Electronic Research and Application》 2024年第3期142-147,共6页
In today’s information age,video data,as an important carrier of information,is growing explosively in terms of production volume.The quick and accurate extraction of useful information from massive video data has be... In today’s information age,video data,as an important carrier of information,is growing explosively in terms of production volume.The quick and accurate extraction of useful information from massive video data has become a focus of research in the field of computer vision.AI dynamic recognition technology has become one of the key technologies to address this issue due to its powerful data processing capabilities and intelligent recognition functions.Based on this,this paper first elaborates on the development of intelligent video AI dynamic recognition technology,then proposes several optimization strategies for intelligent video AI dynamic recognition technology,and finally analyzes the performance of intelligent video AI dynamic recognition technology for reference. 展开更多
关键词 Intelligent video AI dynamic recognition Technology optimization Performance analysis
暂未订购 下载PDF
The Study on Wheat Concurrent-flow Drying Technology 认领 引用
14
作者 CHENLi ZHENGXian－zhe 《Journal of Northeast Agricultural University(English Edition)》 CAS 2000年第2期125-129,共5页
The relation between technology parameters and performance index of the wheat three-stage concurrent-flow drying technology is studied by use of quadratic orthogonial rotate combinative experiment design method.The op... The relation between technology parameters and performance index of the wheat three-stage concurrent-flow drying technology is studied by use of quadratic orthogonial rotate combinative experiment design method.The optimum parameters of drying technology are obtained by nonlinear optimize corresponding regression model and test.All experiment was finished in concurrent-flow grain drying experiment table.The results of this study will be significant for designing energy-saving grain drying machine. 展开更多
关键词 wheat concurrent-flow drying technology parameters optimize
暂未订购 下载PDF
Development prospects of residual stress detection methods 认领 引用
15
作者 Xin LI Hanjun GAO Qiong WU 《Chinese Journal of Aeronautics》 SCIE EI CAS CSCD 2025年第7期601-603,共3页
In the aerospace field, residual stress directly affects the strength, fatigue life and dimensional stability of thin-walled structural components, and is a key factor to ensure flight safety and reliability. At prese... In the aerospace field, residual stress directly affects the strength, fatigue life and dimensional stability of thin-walled structural components, and is a key factor to ensure flight safety and reliability. At present, research on residual stress at home and abroad mainly focuses on the optimization of traditional detection technology, stress control of manufacturing process and service performance evaluation, among which research on residual stress detection methods mainly focuses on the improvement of the accuracy, sensitivity, reliability and other performance of existing detection methods, but it still faces many challenges such as extremely small detection range, low efficiency, large error and limited application range. 展开更多
关键词 residual stress flight safety reliability detection methods optimization traditional detection technology residual stress detection methods service performance evaluation improvement stress control
暂未订购 下载PDF
Optimization of key technologies of penstock shaft construction for a pumped storage power station 认领 引用 被引量：4
16
作者 ZHENG Jingxing CHEN Jianhua +4 位作者 HUANG Wenfeng YIN Jingke ZHANG Peng ZHANG Rui XIONG Fuyou 《水利水电技术（中英文）》 北大核心 2024年第S2期329-339,共11页
Completing the principal engineering components of a pumped storage power station spans between 50 and 60 months,from the inception of construction to the commencement of power generation by the first unit.The filling... Completing the principal engineering components of a pumped storage power station spans between 50 and 60 months,from the inception of construction to the commencement of power generation by the first unit.The filling of the penstock with water represents a critical phase preceding the production of electricity by the first unit.During this interval,the construction of the diversion shaft presents multiple challenges,including intricate construction procedures,considerable construction difficulty,elevated safety risks,and quality control issues.To address this issue,this study uses CFD software to analyze the flow field,pressure gradient,and head loss of shaft curved section with different curvature radius,and examines several key technologies by drawing on the practice of diversion shaft construction at the Meizhou pumped storage power station.These technologies include optimizing the curvature radius of the curved section of diversion shaft,reverse-well excavation for the shaft,and sliding-up for the lining concrete.It is found that as the curvature radius of shaft curved section reduces from 4 to 2 times the shaft diameter,the hydraulic characteristic index does not change much,and the increase of head loss accounts for about 0.18%of the total head loss of the water conveyance system.The result show that optimizing the curvature radius from 4 times to 2 times the shaft diameter is feasible and reasonable,and several improved technical measures have been proposed,such as stabilizing drill rods,mechanical scraper systems,and control technology of the relationship between concrete setting time and formwork sliding.Their implementation effectively mitigates difficulties and safety risks during shaft construction,expedites the project schedule,enhances engineering quality,and creates a 41-month timeline for the principal engineering schedule for the first power unit generation in China. 展开更多
关键词 hydroelectric engineering construction period record engineering technology optimization shaft construction curvature radius
暂未订购 下载PDF
Applications of smart proxies for subsurface modeling 认领 引用 被引量：7
17
作者 SHAHKARAMI Alireza MOHAGHEGH Shahab 《Petroleum Exploration and Development》 SCIE 2020年第2期400-412,共13页
Using artificial intelligence(AI) and machine learning(ML) techniques, we developed and validated the smart proxy models for history matching of reservoir simulation, sensitivity analysis, and uncertainty assessment b... Using artificial intelligence(AI) and machine learning(ML) techniques, we developed and validated the smart proxy models for history matching of reservoir simulation, sensitivity analysis, and uncertainty assessment by artificial neural network(ANN). The smart proxy models were applied on two cases, the first case study investigated the application of a proxy model for calibrating a reservoir simulation model based on historical data and predicting well production while the second case study investigated the application of an ANN-based proxy model for fast-track modeling of CO2 enhanced oil recovery, aiming at the prediction of the reservoir pressure and phase saturation distribution at injection stage and post-injection stage. The prediction effects for both cases are promising. While a single run of basic numerical simulation model takes hours to days, the smart proxy model runs in a matter of seconds, saving 98.9% of calculating time. The results of these case studies demonstrate the advantage of the proposed workflow for addressing the high run-time, computational time and computational cost of numerical simulation models. In addition, these proxy models predict the outputs of reservoir simulation models with high accuracy. 展开更多
关键词 smart proxy modeling reservoir simulation machine learning artificial neural network history matching sensitivity analysis optimization technology CO2 EOR
暂未订购 下载PDF
Progress in and research direction of key technologies for normal-pressure shale gas exploration and development 认领 引用 被引量：1
18
作者 Xipeng He Guisong He +5 位作者 Yuqiao Gao Longsheng Zhang Qing He Peixian Zhang Wei Wang Xiaozhen Huang 《Natural Gas Industry B》 2023年第6期555-569,共15页
Normal-pressure shale gas is an important object of shale gas reserves and production increasewith broad resource prospects in China,but its large-scale benefit development is still confronted with technical bottlenec... Normal-pressure shale gas is an important object of shale gas reserves and production increasewith broad resource prospects in China,but its large-scale benefit development is still confronted with technical bottlenecks.To promote the large-scale benefit development of normal-pressure shale gas,this paper systematically sorts out and summarizes the research achievements and technological progresses related to normal-pressure shale gas from the aspects of accumulation mechanism,enrichment theory,percolation mechanism,development technology,and low-cost engineering technology,and points out the difficulties and challenges to the benefit development of normal-pressure shale gas in the complex structure zones of southern China,by taking the shale gas in the Southeast Chongqing Area of the Sichuan Basin as the research object.In addition,the research direction of normal-pressure shale gas exploration and development is discussed in terms of sweet spot selection,development technology policy,low-cost drilling technology and high-efficiency fracturing technology.And the following research results are obtained.First,the accumulation mechanism of normal-pressure shale gas is clarified from the perspective of geological exploration theory;the hydrocarbon accumulation model of generation,expulsion,retention and accumulation is established;the enrichment theory of“three-factor controlling reservoir”is put forward;and the comprehensive sweetspot target evaluation system is formed.Second,as for development technology,the development technology policies of“multiple series of strata,variable well spacing,long horizontal section,small included angle,low elevation difference,strong stimulation and pressure difference controlling”are formulated.Third,as for drilling engineering,the optimal fast drilling and completion technology with“secondary structureþradical parameterþintegrated guidanceþunpressured leak-proof cementing”as the core is formed.Fourth,as for fracturing engineering,the low-cost and high-efficiency fracturing technology with“multi-cluster small-stageþlimited-entry perforatingþdouble temporary blockingþhigh-intensity sand injectionþfully electric”as the core is formed.Fifth,normal-pressure shale gas is characterized by complex geological conditions,low pressure coefficient and gas content,poor resource endowment and so on,but its resource utilization still faces a series of challenges,such as uncertain productivity construction positions,low single-well productivity and ultimate recoverable reserve,high investment cost and poor economic benefit.In conclusion,the key research directions to realize the large-scale benefit development of low-grade normal-pressure shale gas are to deepen the research on the enrichment and high yield mechanism and sweet spot selection of normal-pressure shale gas,strengthen the research on the benefit development technology policy based on percolation mechanism and the key technologies for low-cost drilling,accelerate the research and devel-opment of the key technologies for low-cost and high-efficiency fracturing,and implement cost reduction and efficiency improvement continuously. 展开更多
关键词 Normal-pressure shale gas Accumulation mechanism Enrichment rule Development technology policies Optimal fast drilling technology High-efficiency fracture network fracturing technology
暂未订购 下载PDF
Lightweight Body-In-White Design Driven by Optimization Technology 认领 引用 被引量：6
19
作者 Heguo Ou Xiaodong Tang +2 位作者 Jieping Xiao Yuanbo Wang Zhongmin Ma 《Automotive Innovation》 EI 2018年第3期255-262,共8页
Structural optimization technologies are increasingly applied to lightweight automotive structural design.In a body-inwhite(BIW)development project,optimization technologies are applied in three steps that are seamles... Structural optimization technologies are increasingly applied to lightweight automotive structural design.In a body-inwhite(BIW)development project,optimization technologies are applied in three steps that are seamlessly integrated into engineering practice.By following a design-driven approach,an innovative design that was 50.65 kg lighter than the base design was achieved.First,topology optimization was used to investigate the optimal material distribution in a given design space,and helped in extracting the main load path,while considering crashworthiness,NVH,and static stiffness performance requirements.In the second step,the effective design of a beam cross-section and feasible joints was carried out based on optimization technology and expert knowledge.In this step,the deep involvement of manufacturing process experts on stamping and joint connection feasibility analysis increased the chance of success remarkably.The sensitivity analysis,topography optimization,and gauge optimization of the created draft 3D BIW frame comprised the last step before finalizing the initial design.The new design was validated by full load case simulations,including full vehicle crashworthiness analysis,mode frequency,and body mount point dynamic stiffness analysis,and BIW stiffness and component attachment stiffness analysis.The validation results indicate that the new BIW design achieves the performance goal,while being 13.3%lighter than the base design. 展开更多
关键词 BIW design Lightweight design Structural optimization Optimization technology
Study on Energy Conservation of External Wall Structure of Rural Houses in Cold Area 认领 引用
20
作者 Yingshe Su 《International Journal of Technology Management》 2013年第2期88-90,共3页
According to the status of the northern rural architecture analysis, the prevalence of high energy consumption, low comfort features, it is essential to design energy-efficient buildings in rural areas. Article resear... According to the status of the northern rural architecture analysis, the prevalence of high energy consumption, low comfort features, it is essential to design energy-efficient buildings in rural areas. Article research and analyze the layout of rural buildings, a variety of energy-saving technologies and building design measures development and utilization of new energy sources and other issues that can make rural buildings to save energy and improve the environmental quality of living of farmers. It also put forward some reasonable suggestions for carrying out residential building energy efficiency in cold areas. 展开更多
关键词 Rural housing building energy efficiency technology optimization： comprehensive evaluation
暂未订购 下载PDF
已选0条
引用分析
参考文献
引证文献
 统计分析
检索结果
已选文献
上一页 1 2 下一页 到第 页
在线咨询 使用帮助 返回顶部 意见反馈