期刊文献+
共找到65篇文章
< 1 2 4 >
每页显示 20 50 100
A new method to evaluate integrated production system capacity in oil fields
1
作者 YADUA Asekhame U. LAWAL Kazeem A. 《Petroleum Exploration and Development》 SCIE 2023年第3期665-674,共10页
To improve the design and management of an integrated production system(IPS),a set of mathematical models and workflows are developed for evaluating the capacity of an IPS at steady-state conditions.Combining the cons... To improve the design and management of an integrated production system(IPS),a set of mathematical models and workflows are developed for evaluating the capacity of an IPS at steady-state conditions.Combining the conservation laws with applicable multiphase fluid and choke models,these mathematical models are solved to characterize the hydraulics of an integrated system of reservoir,wells,chokes,flowlines,and separator at steady state.The controllable variables such as well count,choke size and separator pressure are adjusted to optimize the performance of the IPs at a specific time.It is found that increasing the well count can increase the bulk flow rate of the production network,but too many wells may increase the manifold pressure,leading to decline of single-well production.Increasing the choke size can improve the capacity of the IPs.The production of the IPs is negatively correlated with the separator pressure.With increasing separator pressure and decreasing choke size,the increment of total fluid production(the capacity of IPS)induced by increasing well count decreases.Validation tests with field examples show a maximum absolute deviation is 1.5%,demonstrating the robustness and validity of the proposed mathematical models and workflows. 展开更多
关键词 integrated production system modelling integrated production system capacity productivity evaluation production optimization nodal analysis
下载PDF
Integrated Product Development in Rhinoplasty:A Case Study
2
作者 杨骁丽 刘凯 吴春茂 《Journal of Donghua University(English Edition)》 CAS 2023年第3期284-292,共9页
The 3D simulation in preoperative design for nasal plastic surgery was studied to help patients see the postoperative effects and reduce medical disputes.The study developed and clinically tested an innovative design ... The 3D simulation in preoperative design for nasal plastic surgery was studied to help patients see the postoperative effects and reduce medical disputes.The study developed and clinically tested an innovative design for surgical guides for nasal plastic surgery,which showed positive results in patient satisfaction and accuracy in achieving the preoperative simulated effect.The study also investigated the process of designing and producing nasal prostheses and how patient feedback could be obtained using third-party social media voting.Patient satisfaction information was collected and evaluated using the Likert scale,and the data statistical analysis was carried out with the SPSS19.0 software.More than 94.1% of the patients were satisfied with the postoperative results.The study provides a good reference case for the integration of knowledge and skills from the medicine,design,and engineering fields in the development of medical devices. 展开更多
关键词 integrated product development(IPD) RHINOPLASTY intraoperative navigation medical device
下载PDF
Integrated Product and Process Control for Sustainable Semiconductor Manufacturing 被引量:2
3
作者 陈良 Yinlun Huang 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2011年第2期192-198,共7页
Semiconductor fabrication is a manufacturing sequence with hundreds of sophisticated unit operations and it is always challenged by strategy development for ensuring the yield of defect-free products.In this paper,an ... Semiconductor fabrication is a manufacturing sequence with hundreds of sophisticated unit operations and it is always challenged by strategy development for ensuring the yield of defect-free products.In this paper,an advanced control strategy through integrating product and process control is established.The proposed multiscale scheme contains three layers for coordinated equipment control,process control and product quality control.In the upper layer,online control performance assessment is applied to reduce the quality variation and maximize the overall product performance (OPP).It serves as supervisory control to update the recipe of the process controller in the middle layer.The process controller is designed as an exponentially weighted moving average (EWMA) run-to-run controller to reject disturbances,such as process shift,drift and tool worn out,that are exerted to the op-eration.The equipment in the process is individually controlled to maintain its optimal operational status and maximize the overall equipment effectiveness (OEE),based on the set point given by the process controller.The ef-ficacy of the proposed integrated control scheme is demonstrated through case studies,where both the OPP (for product) and the OEE (for equipment) are enhanced. 展开更多
关键词 semiconductor manufacturing run-to-run control integrated product and process control
下载PDF
Evaluation of Integrated Production Capacity of Well- facilitated Farmland in Jiangsu Province 被引量:1
4
作者 Qian ZHUANG 《Asian Agricultural Research》 2016年第12期60-65,共6页
The fundamental task of well-facilitated farmland construction is to continuously lift the integrated production capacity. External project construction for well-facilitated farmland can not completely solve existing ... The fundamental task of well-facilitated farmland construction is to continuously lift the integrated production capacity. External project construction for well-facilitated farmland can not completely solve existing problems in improvement of intrinsic quality of farmland.Based on research findings of integrated production capacity of farmland,starting from basic elements such as water,soil,seed,fertilizer,and pesticide,this paper introduced factors influencing the integrated production capacity of well-facilitated farmland,including natural quality of farmland,supporting infrastructure,agricultural technology level and management level,and labor quality. Besides,it establish an evaluation system for integrated production capacity of well-facilitated farmland in Jiangsu Province by Analytic Hierarchy Process( AHP),and made an empirical study using indicator data of 2010- 2014. Results indicated that the general index of integrated production capacity of farmland in Jiangsu Province in 2010- 2014 was ascending,reflecting improvement of integrated production capacity of farmland. With the aid of radar map,it further found that the coupling between water,soil,seed,fertilizer,and pesticide and other elements play a crucial role in lifting the integrated production capacity of farmland. Finally,based on existing problems in construction of well-facilitated farmland in Jiangsu Province,it came up with some pertinent recommendations from the perspective of coordinated development of all elements. 展开更多
关键词 Well-facilitated farmland integrated production capacity Analytical hierarchy process(AHP)
下载PDF
Concurrent Engineering oriented Integrated Product Model Based on STEP
5
作者 Song, Yuying Chu, Xiuping Cai, Fuzhi 《High Technology Letters》 EI CAS 1998年第2期11-16,共6页
In this paper, the generalized feature concept is put forward according to concurrent engineering. An integrated product model is established based on the generalized feature according to STEP in order to provide enri... In this paper, the generalized feature concept is put forward according to concurrent engineering. An integrated product model is established based on the generalized feature according to STEP in order to provide enrichment information for product concurrent development process. The integration of the information and function of CAD/CAPP can be realized based on the integrated product model that supports concurrent engineering. IPM has been used successfully in product concurrent development. 展开更多
关键词 Concurrent engineering Generalized feature integrated product model STEP
下载PDF
Actuality and Influencing Factors of Integrated Production Capacity of Foodstuff in Heilongjiang Province 被引量:3
6
作者 Zhou Hui-qiu Zhang De-hua 《Journal of Northeast Agricultural University(English Edition)》 CAS 2012年第1期82-90,共9页
Heilongjiang Province is an important marketable grain depot in China. Since the reform and opening up, Heilongjiang Province production capacity of foodstuff is increasingly growing into a new level. This paper start... Heilongjiang Province is an important marketable grain depot in China. Since the reform and opening up, Heilongjiang Province production capacity of foodstuff is increasingly growing into a new level. This paper started with the actuality of Heilongjiang Province integrated production capacity of foodstuff, and analyzed its major factors empirically through the mathematical model, then proposed some measures to enhance Heilongjiang Province production capacity of foodstuff which ensured China foodstuff security 展开更多
关键词 Heilongjiang Province integrated foodstuff production capacity influencing factor
下载PDF
Construction of a Virtual Simulation Practice Teaching System of the Chemical Industry Under the Background of Integration of Production and Education
7
作者 Lixia Wang 《Journal of Contemporary Educational Research》 2024年第5期103-109,共7页
With the development of the integration of production and education,chemical engineering and technology education is facing many new challenges and opportunities.The construction of a chemical virtual simulation pract... With the development of the integration of production and education,chemical engineering and technology education is facing many new challenges and opportunities.The construction of a chemical virtual simulation practice teaching system under the background of integration of production and education aims to improve students’learning efficiency and innovation ability with the help of virtual simulation technology,so as to meet the needs of future industrial development.This paper discusses the significance of the construction of the system,analyzes the difficulties and challenges that may be encountered in the construction process,and evaluates the effective strategies to strengthen the construction of the system.Through the introduction of virtual simulation technology,students can improve their practical skills and innovation ability,and better adapt to the development needs of industrialization and informatization. 展开更多
关键词 Integration of production and education Chemical virtual simulation practice Teaching system
下载PDF
Theory and practice of integrated coal production and gas extraction 被引量:67
8
作者 Liang Yuan 《International Journal of Coal Science & Technology》 EI 2015年第1期3-11,共9页
The integrated extraction of coal and gas combines coal mining with gas capture. Taking into account the gas deposition and flow conditions in the Chinese coal basins, this paper describes the status of the theory and... The integrated extraction of coal and gas combines coal mining with gas capture. Taking into account the gas deposition and flow conditions in the Chinese coal basins, this paper describes the status of the theory and key technologies of this integrated extraction system, and presents its application and practice in the Shaqu, Zhongxing, Fenghuangshan and Pingmei mines. Areas for further improvements in future studies are discussed, focusing in particular on the fundamentals of the extraction system to make it greener, more scientific, and more advanced in both the exploitation and utilization of coal and the gas in coal. 展开更多
关键词 integrated coal production Gas extraction De-stress mining Pillarless mining Circular overlying zone
下载PDF
Elevation, Slope Aspect and Integrated Nutrient Management Effects on Crop Productivity and Soil Quality in North-west Himalayas, India 被引量:4
9
作者 Birendra Nath GHOSH Narinder Kumar SHARMA +2 位作者 Nurnabi Meherul ALAM Raman Jeet SINGH Gopal Prasad JUYAL 《Journal of Mountain Science》 SCIE CSCD 2014年第5期1208-1217,共10页
On farm bio-resource recycling has been given greater emphasis with the introduction of conservation agriculture specifically withclimate change scenarios in the mid-hills of the north-west Himalaya region(NWHR). Un... On farm bio-resource recycling has been given greater emphasis with the introduction of conservation agriculture specifically withclimate change scenarios in the mid-hills of the north-west Himalaya region(NWHR). Under this changing scenario, elevation, slope aspect and integrated nutrient management(INM) may affect significantly soil quality and crop productivity. A study was conducted during 2009-2010 to 2010-2011 at the Ashti watershed of NWHR in a rainfed condition to examine the influence of elevation, slope aspect and integrated nutrient management(INM) on soil resource and crop productivity. Two years of farm demonstration trials indicated that crop productivity and soil quality is significantly affected by elevation, slope aspect and INM. Results showed that wheat equivalent yield(WEY) of improved technology increased crop productivity by -20%-37% compared to the conventional system. Intercropping of maize with cowpea and soybean enhanced yield by another 8%-17%. North aspect and higher elevation increased crop productivity by 15%-25% compared to south aspect and low elevation(except paddy). Intercropping of maize with cowpea and soybean enhanced yield by another 8%-15%. Irrespective of slope, elevation and cropping system, the WEY increased by -30% in this region due to INMtechnology. The influence of elevation, slope aspect and INM significantly affected soil resources(SQI) and soil carbon change(SCC). SCC is significantly correlated with SQI for conventional(R2 = 0.65*), INM technology(R2 = 0.81*) and for both technologies(R2 = 0.73*). It is recommended that at higher elevation.(except for paddy soils) with a north facing slope, INM is recommended for higher crop productivity; conservation of soil resources is recommended for the mid hills of NWHR; and single values of SCC are appropriate as a SQI for this region. 展开更多
关键词 Elevation Crop productivity integrated nutrient management(INM) Slope aspect and soil quality
下载PDF
Spatial and Temporal Variation of Real Integrated Land Productivity of Yunnan Province
10
作者 Shuocheng LIANG Zisheng YANG +1 位作者 Renyi YANG Yimei HE 《Asian Agricultural Research》 2021年第1期27-31,共5页
Taking Yunnan Province as an example,this paper calculated the real integrated land productivity(RILP)of 16 prefectures(cities)in Yunnan Province for the past 11 years(2009-2019),and analyzed its spatial distribution ... Taking Yunnan Province as an example,this paper calculated the real integrated land productivity(RILP)of 16 prefectures(cities)in Yunnan Province for the past 11 years(2009-2019),and analyzed its spatial distribution pattern.The research results show that the RILP of the whole Yunnan Province and all prefectures(cities)showed a slow upward trend.Among them,the province's RILP showed the highest increase in 2019 compared with the previous year;the RILP of all prefectures(cities)in Yunnan Province has significant spatial autocorrelation,showing obvious positive spatial agglomeration characteristics.Based on this,this paper proposes to improve the overall RILP in various regions according to local conditions and formulate countermeasures for coordinated development of various prefectures(cities). 展开更多
关键词 Real integrated land productivity(RILP) Spatio-temporal variation Spatial pattern ANALYSIS Yunnan Province
下载PDF
Analysis on the Development of Lushan (Xingzi) Hot Spring Health Tourism Products from the Perspective of Product Integrated Marketing
11
作者 Fenglian Zou Zhibin Hu 《International English Education Research》 2014年第9期88-90,共3页
Through the development of more than 60 years, the hot spring tourism industry in China will confront with a situation of "innovative competition, standard development, and secondary upgrade". In this paper, from th... Through the development of more than 60 years, the hot spring tourism industry in China will confront with a situation of "innovative competition, standard development, and secondary upgrade". In this paper, from the perspective of product integrated marketing theory, by taking Lushan (Xingzi) hot spring as an example, the authors carry out an analysis on some problems in the development of Xingzi hot spring tourism products, propose the framework and model of the integrated development of hot spring health tourism products, and also provide some suggestions for the design of Xingzi hot spring health tourism routes. 展开更多
关键词 product Integration Health Preservation by Hot Spring Route Design
下载PDF
New light fields based on integration theory within the Weyl ordering product of operators
12
作者 张科 李兰兰 +1 位作者 郭大伟 范洪义 《Chinese Physics B》 SCIE EI CAS CSCD 2023年第4期160-164,共5页
The development of quantum optics theory based on the method of integration within an ordered product of operators(IWOP)has greatly stimulated the study of quantum states in the light field,especially non-Gaussian sta... The development of quantum optics theory based on the method of integration within an ordered product of operators(IWOP)has greatly stimulated the study of quantum states in the light field,especially non-Gaussian states with various non-classical properties.In this paper,the two-mode squeezing operator is derived with integral theory within the Weyl ordering product of operators using a combinatorial field in which one mode is a chaotic field and the other mode is a vacuum field.The density operator of the new light field,its entanglement property and photon number distribution are analyzed.We also note that tracing a three-mode pure state can yield this new light field.These methods represent a theoretical approach to investigating new density operators of light fields. 展开更多
关键词 integration within an ordered product of operators two-mode squeezing operator Weyl ordering entanglement property
下载PDF
Construction Method of Civil Aircraft Airborne⁃system Supplier Development Process System
13
作者 PU Youhua LI Lin LI Li 《International Journal of Plant Engineering and Management》 2024年第2期65-77,共13页
Based on the analysis of the development process system status of domestic and foreign civil aircraft airborne system suppliers,this paper proposes the overall construction idea of"a set of civil aircraft process... Based on the analysis of the development process system status of domestic and foreign civil aircraft airborne system suppliers,this paper proposes the overall construction idea of"a set of civil aircraft process system"based on IPD(Integrated product development)in the organization.The development stage,process,activity and task are the logical framework elements of the system construction."Based on process decomposition,vertical stratification,horizontal segmentation,combination of special and common,process customized to tools,role and process integration,giving full consideration to the interface between supplier management and process modules"etc.are the concrete ideas.Moreover,formulate top⁃level system construction standards,implemented by process system management tool platform,so that the process system and development work can be effectively integrated to effectively guide the development work of airborne system suppliers,and meet the quality and airworthiness requirements of civil aircraft development.Through the development application of a certain type of flight control system,the process system and tool platform were verified and optimized in practice. 展开更多
关键词 development process system development assurance process integrated product development(IPD) development stage ACTIVITY
下载PDF
Wigner function of optical cumulant operator and its dissipation in thermo-entangled state representation
14
作者 张科 李兰兰 范洪义 《Chinese Physics B》 SCIE EI CAS CSCD 2024年第6期205-210,共6页
To conveniently calculate the Wigner function of the optical cumulant operator and its dissipation evolution in a thermal environment, in this paper, the thermo-entangled state representation is introduced to derive t... To conveniently calculate the Wigner function of the optical cumulant operator and its dissipation evolution in a thermal environment, in this paper, the thermo-entangled state representation is introduced to derive the general evolution formula of the Wigner function, and its relation to Weyl correspondence is also discussed. The method of integration within the ordered product of operators is essential to our discussion. 展开更多
关键词 Wigner function optical cumulant operator dissipation evolution thermo-entangled state representation integration within ordered product of operators
下载PDF
Effect of Cadmium on Rat Leydig Cell Testosterone Production and DNA Integrity in vitro 被引量:3
15
作者 LIU Qing GU Jian Hong +6 位作者 YUAN Yan LIU Xue Zhong WANG Ya Jun WANG Han Dong LIU Zong Ping WANG Zong Yuan BIAN Jian Chun 《Biomedical and Environmental Sciences》 SCIE CAS CSCD 2013年第9期769-773,共5页
Cadmium (Cd) is an elemental heavy metal with widely recognized toxicity. Its long-term use in industrial processes and daily activities has caused alarming levels of Cd contamination in the natural environment. Acc... Cadmium (Cd) is an elemental heavy metal with widely recognized toxicity. Its long-term use in industrial processes and daily activities has caused alarming levels of Cd contamination in the natural environment. According to the estimates by the Agency of Toxic Substances and Disease Registry in the US, 25 000 to 30 000 metric tons of Cd is annually released to the environment . Results of previous studies have demonstrated that several organs are targets of Cd, but the most important of these targeted organs may be the testes. 展开更多
关键词 DNA Effect of Cadmium on Rat Leydig Cell Testosterone production and DNA Integrity in vitro Cd
下载PDF
LOCAL SALINE APPROXIMATION METHODS FOR SINGULAR PRODUCT INTEGRATION 被引量:1
16
作者 C. Dagnino V. Demichelis E. Santi 《Analysis in Theory and Applications》 1996年第3期37-51,共15页
The purpose of this paper is to propose and study local spline approximation methods for singular product integration,for which;i)the precision degree is the highest possible using splint approximation; ii) the nodes ... The purpose of this paper is to propose and study local spline approximation methods for singular product integration,for which;i)the precision degree is the highest possible using splint approximation; ii) the nodes fan be assumed equal to arbitrary points,where the integrand function f is known; iii) the number of the requested evaluations of f at the nodes is low,iv) a satisfactory convergence theory can be proved. 展开更多
关键词 LOCAL SALINE APPROXIMATION METHODS FOR SINGULAR product INTEGRATION
下载PDF
An Integrated Approach to the Teaching of English Writing 被引量:1
17
作者 Xiaoyan Xu 《Sino-US English Teaching》 2005年第12期37-41,共5页
English writing, as a basic language skill for second language learners, is being paid close attention to. How to achieve better results in English teaching and how to develop students' writing competence remain an a... English writing, as a basic language skill for second language learners, is being paid close attention to. How to achieve better results in English teaching and how to develop students' writing competence remain an arduous task for English teachers. This paper introduces three writing approaches that are currently popular in English writing teaching field, i.e., the product approach, the process approach and the genre approach, and offers some discussion on the three approaches each approach shows its strengths and weaknesses, but meanwhile they are largely complementary. Then this paper attempts to propose an integrated approach which is not only a synthesis of the above three approaches, but also draws on some experiences of traditional Chinese language teaching methods. 展开更多
关键词 English writing product approach process approach genre approach integrated approach
下载PDF
Teaching Reform and Practice of Animal Products Processing under the Background of Intelligent Agriculture
18
作者 Zhoulin WU Wei WANG +3 位作者 Lili JI Bo HOU Ting BAI Jiamin ZHANG 《Asian Agricultural Research》 2022年第11期74-76,共3页
Effective food professional personnel training strategies are explored and implemented,and interdisciplinary talents of food science and engineering in accordance with the background of intelligent agriculture are cul... Effective food professional personnel training strategies are explored and implemented,and interdisciplinary talents of food science and engineering in accordance with the background of intelligent agriculture are cultivated from the aspects of construction of teaching staff,reform of teaching content,upgrading of teaching model,construction of industry-education integration platform,which is of great significance to the modernization development of Chinese animal products processing industry. 展开更多
关键词 Animal products processing Intelligent agriculture Talent training Integration of production and education
下载PDF
Research on the Transformation and Development of Universities under the Combination of Science and Education and the Combination of Production and Education
19
作者 Zhou Yan 《教育研究前沿(中英文版)》 2019年第3期151-154,共4页
The research on the transformation and development of colleges and universities in China involves the connotation,causes,target orientation,content and conditions,problems encountered in the transformation and develop... The research on the transformation and development of colleges and universities in China involves the connotation,causes,target orientation,content and conditions,problems encountered in the transformation and development.Therefore,the author studies the transformation and development of Universities under the integration of education,industry and education.The research shows that the development of integration of general vocational education is the basic feature of Applied Undergraduate education,the development of integration of industry and education is the basic way of Applied Undergraduate education,and the development of integration of science and education is the basic law of Applied Undergraduate education.Colleges and universities must grasp the transformational development path of integration of science and education,integration of production and education,and clarify the orientation of running schools for the local economic development and the development of disciplines to connect regional industries. 展开更多
关键词 Science and Education Integration Integration of production and Education University Transformation and Development
下载PDF
Quantum entangled fractional Fourier transform based on the IWOP technique 被引量:2
20
作者 张科 李兰兰 +3 位作者 余盼盼 周莹 郭大伟 范洪义 《Chinese Physics B》 SCIE EI CAS CSCD 2023年第4期165-170,共6页
In our previous papers,the classical fractional Fourier transform theory was incorporated into the quantum theoretical system using the theoretical method of quantum optics,and the calculation produced quantum mechani... In our previous papers,the classical fractional Fourier transform theory was incorporated into the quantum theoretical system using the theoretical method of quantum optics,and the calculation produced quantum mechanical operators corresponding to the generation of fractional Fourier transform.The core function of the coordinate-momentum exchange operators in the addition law of fractional Fourier transform was analyzed too.In this paper,the bivariate operator Hermite polynomial theory and the technique of integration within an ordered product of operators(IWOP)are used to establish the entanglement fractional Fourier transform theory to the extent of quantum.A new function generating formula and an operator for generating quantum entangled fractional Fourier transform are obtained using the fractional Fourier transform relationship in a pair of conjugated entangled state representations. 展开更多
关键词 fractional Fourier transform coordinate-momentum exchange operators bivariate operator Hermite polynomial theory the technique of integration within an ordered product of operators quantum entangled fractional Fourier transform
下载PDF
上一页 1 2 4 下一页 到第
使用帮助 返回顶部