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Accuracy Assignment Study of Tank Fire Control System Based on Value Analysis Method
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作者 窦丽华 张佳 陈杰 《Journal of Beijing Institute of Technology》 EI CAS 2006年第4期411-415,共5页
A method of accuracy assignment based on value analysis method (VAM) in tank fire control system (TFCS) is proposed. From the analysis of primary error sources and their error transfer relationships, the mathemati... A method of accuracy assignment based on value analysis method (VAM) in tank fire control system (TFCS) is proposed. From the analysis of primary error sources and their error transfer relationships, the mathematical model is built on the basis of VAM to solve the accuracy assignment problem. Simulation results show the validation and feasibility of the proposed method. It can help designer of tank fire control system work out an optimal system more efficiently and more economically. 展开更多
关键词 tank fire control system(TFCS) accuracy assignment value analysis method(VAM)
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Value Analysis and Protective Planning of Famous Historical and Cultural Villages: A Case Study of Ancient Sangyuan Village in Jishui County, Jiangxi Province
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作者 LUO Yi 《Journal of Landscape Research》 2016年第5期123-126,共4页
Through analyzing historical value of patriarchal society, village layout, and characteristic folk dwel ings in Ancient Sangyuan Village, Jishui County, Jiangxi Province, this paper proposed the protective planning ba... Through analyzing historical value of patriarchal society, village layout, and characteristic folk dwel ings in Ancient Sangyuan Village, Jishui County, Jiangxi Province, this paper proposed the protective planning based on the gist of protecting villagers' benefits, applied classified protection of buildings, enhanced water protection and landscape design, and tried to carry out its intangible cultures via folk custom activities, in order to further develop the value of its historical and cultural resources. 展开更多
关键词 Famous historical and cultural village value analysis Protective planning Ancient Sangyuan Vil age
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Value of Tongue Color Combined with Sublingual Microcirculation in Predicting the Severity of Mild to Moderate Acute Cerebral Infarction
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作者 赵帅 张勇 +3 位作者 高伟 李静波 姜婧 张鹏翎 《World Journal of Integrated Traditional and Western Medicine》 2023年第4期31-35,共5页
Objective:To explore the value of tongue color combined with sublingual microcirculation in predicting the severity of mild to moderate acute cerebral infarction(ACI).Methods:From January to December 2022,90 patients ... Objective:To explore the value of tongue color combined with sublingual microcirculation in predicting the severity of mild to moderate acute cerebral infarction(ACI).Methods:From January to December 2022,90 patients with ACI were admitted to the Department of Neurology of Jiangsu Provincial Hospital of Integrated Traditional Chinese and Western Medicine.According to the NHISS score on the 5th day of admission,the patients were divided into mild group(35 cases)and moderate group(55 cases).The changes of tongue color and arterial lactate on the 5th day of admission were observed and monitored.Side-stream dark field imaging(SDF)was used to determine the total vascular density(TVD),perfused vascular density(PVD),perfused vascular ratio(PPV)and microvascular flow index(MFI).The multivariate logistic regression analysis was used to screen the risk factors for the severity of ACI,and the receiver operating characteristic curve(ROC)to evaluate their values in predicting ACI severity.Results:There was no significant difference in lactate between the two groups(P>0.05),and the frequency of red tongue in the mild group was higher,and the frequency of red tongue in the moderate group was significantly higher in the dark tongue group(P<0.05).The multivariate logistic regression analysis showed that PVD and PPV were independent risk factors for the severity of mild to moderate ACI(P<0.05).The ROC curve analysis showed that an area under the curve of 0.832 was achieved by the combination of PVD and PPV,which was larger than that of a single factor.Conclusion:Tongue color combined with sublingual microcirculation can be combined to predict the severity of mild to moderate ACI. 展开更多
关键词 Acute cerebral infarction Tongue color Sublingual microcirculation Sidestream dark vision value analysis
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An Intercomparison of Rules for Testing the Significance of Coupled Modes of Singular Value Decomposition Analysis 被引量:2
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作者 李芳 曾庆存 《Advances in Atmospheric Sciences》 SCIE CAS CSCD 2007年第2期199-212,共14页
This paper clarifies the essence of the significance test of singular value decomposition analysis (SVD), and investigates four rules for testing the significance of coupled modes of SVD, including parallel analysis... This paper clarifies the essence of the significance test of singular value decomposition analysis (SVD), and investigates four rules for testing the significance of coupled modes of SVD, including parallel analysis, nonparametric bootstrap, random-phase test, and a new rule named modified parallel analysis. A numerical experiment is conducted to quantitatively compare the performance of the four rules in judging whether a coupled mode of SVD is significant as parameters such as the sample size, the number of grid points, and the signal-to-noise ratio vary. The results show that the four rules perform better with lower ratio of the number of grid points to sample size. Modified parallel analysis and nonparametric bootstrap perform best to abandon the spurious coupled modes, but the latter is better than the former to retain the significant coupled modes when the sample size is not much larger than the number of grid points. Parallel analysis and random-phase test are robust to abandon the spurious coupled modes only when either (1) the observations at the grid points are spatially uncorrelated, or (2) the coupled signal is very strong for parallel analysis and is not weak for random-phase test. The reasons affecting the accuracy of the test rules are discussed. 展开更多
关键词 singular value decomposition analysis significance test
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APPLICATION OF THERMAL ANALYSIS TO THE QUICK DETERMINATION OF THE PROXIMATE ANALYSIS ITEMS AND CALORIC VALUE FOR COAL
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作者 Zhen Ku GUO Lan Xiang MENG China Commodity Inspection Institute,Beijing,100025Xin Yu REN Ya Zhong ZHANG Qinhuangdao Commodity Inspection Bureau,Hebei Province,066002 《Chinese Chemical Letters》 SCIE CAS CSCD 1993年第10期921-924,共4页
A research on the application of a TG-DTA(thermal gravimetry aifferential thermal analysis)to the quick determination of moisture,organic volatile fixed carbon,ash and caloric value for coal is described.
关键词 APPLICATION OF THERMAL analysis TO THE QUICK DETERMINATION OF THE PROXIMATE analysis ITEMS AND CALORIC value FOR COAL DTA QUICK
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Analysis and Investigation on the Core Competitiveness of Textile and Underwear Industry in the Mainland and Taiwan of China and Myanmar under the Global Value Chain
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作者 Haichao Wu Lan Luo +3 位作者 Yingshan Zeng Rudan Wang Yue Zhang Chien Chi Chu 《Journal of Sustainable Business and Economics》 2022年第2期22-34,共13页
All the way in the “area”, “comprehensive economic partnership agreement” (RCEP), Association of Southeast Asian Nations (ASEAN) free trade area, the main economic corridor construction under the background of suc... All the way in the “area”, “comprehensive economic partnership agreement” (RCEP), Association of Southeast Asian Nations (ASEAN) free trade area, the main economic corridor construction under the background of success, the mainland and Taiwan of China and southeast Asia has established the important relations of cooperation, industries are beginning to consider labor costs, raw materials, using the regional to invest policy and market comparative advantage. This paper starts from the investigation of Topline’s core competitiveness in China and Myanmar, and focuses on the analysis of lingerie industry in China and Myanmar, and the analysis of women’s underwear industry from the perspective of global value chain (GVC). Through the data analysis of the questionnaire survey, this paper summarizes the problems existing in the current situation of the industry, uses the intermediary analysis to analyze the correlation between the two variables, reveals the role of the core competitiveness of enterprises, and uses the GVC theory to analyze the problems existing in the industry of enterprises and their causes. According to relevant theories, the optimization path of enterprise value chain is put forward. 展开更多
关键词 Global value chain analysis The questionnaire survey Textile industry Southeast Asia Intermediary role
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Small ruminant value chain in Al-Ruwaished District,Jordan
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作者 Rula AWAD Hosam TITI +2 位作者 Aziza MOHAMED-BRAHMI Mohamed JAOUAD Aziza GASMI-BOUBAKER 《Regional Sustainability》 2023年第4期416-424,共9页
This study aims to assess the small ruminant value chain in Al-Ruwaished District,Jordan,to identify the potential intervention areas that could improve the production efficiency and guarantee the sustainability of th... This study aims to assess the small ruminant value chain in Al-Ruwaished District,Jordan,to identify the potential intervention areas that could improve the production efficiency and guarantee the sustainability of the small ruminant sector in this area.Sheep breeding is the source of livelihood for most of the people in Al-Ruwaished District,which is characterized by the large number of sheep and goats.We surveyed 5.0% of the small ruminant holders in the study area and conducted individual interviews and surveys with the potential actors in the value chain to undertake a small ruminant value chain analysis.From the survey,we found that the small ruminant value chain consists of five core functions,namely,input supply,production management,marketing,processing,and consumption.Despite the stable impression given by the large number of holdings in the small ruminant sector,the surveyed results show a clear fragility in the value chain of small ruminants in this area.The small ruminant production system is negatively impacted by climate change,especially continuous drought.In addition,the high prices of feed that the farmer cannot afford with clear and real absence of the governmental and non-governmental support activities also impact the development of the value chain.The results of strengths,weaknesses,opportunities,and threats(SWOT)analysis reveal that the major constraints faced by this value chain could be divided into external and internal threats.Specifically,the most prominent external threats are the nature of the desert land and continuous drought,while the major internal threats are the absence of appropriate infrastructure,shortage of inputs,and weakness in the production management and marketing.We proposed solutions to these challenges to ensure the sustainability and effectiveness of the sector,such as the formulation of emergency response plans to severe weather,qualifying farmers’skills,and establishment of agricultural cooperative societies. 展开更多
关键词 value chain analysis Small ruminants Strengths weaknesses opportunities and threats(SWOT)analysis Climate change Livestock production management JORDAN
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THE BOUNDARY VALUE PROBLEMS OF ELLIPTICSYSTEM (E_1) ON THE UNBOUNDED DOMAIN
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作者 陶继成 《Acta Mathematica Scientia》 SCIE CSCD 2002年第1期123-130,共8页
This paper discusses three kinds of BVPs of elliptic system (E1) on the complementary domain of disk. The results, based on Fourier analysis method. not only enrich the results of reference [1]. but also are of both t... This paper discusses three kinds of BVPs of elliptic system (E1) on the complementary domain of disk. The results, based on Fourier analysis method. not only enrich the results of reference [1]. but also are of both theoretical and practical interest. 展开更多
关键词 Boundary value problem. Fourier analysis
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Analysis of Service Delivery Improvement of Manufactured Products with Lean Method Management
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作者 M.Tirtana Siregar Gilang Yoga Samodra 《Journal of Management Science & Engineering Research》 2020年第2期26-30,共5页
This study aimed to determine the waste that occurs in activities from receiving to delivering of finished products that can result in delays in the delivery of audio to Japan.The waste identified is limited to activi... This study aimed to determine the waste that occurs in activities from receiving to delivering of finished products that can result in delays in the delivery of audio to Japan.The waste identified is limited to activities in the finished goods warehouse.The problem that occurs is the delay in product delivery,because the product is not ready to be delivered so that it causes delays.The lean approach is used to reduce waste in the overall work process activities in the finished goods warehouse.Waste identification was performed through the 7 waste approach.Process Activity Mapping is one of the tools of VALSAT,and is looking for critical waste to find the root cause of waste.Delay can be minimized by making improvements to the layout of the warehouse and routine inspection of goods transporters.Companies should use lean to reduce the waste that occurs so there is no delay in the delivery of audio products. 展开更多
关键词 DISTRIBUTION LEAN value Stream analysis Delivery Quality
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Discussion on Municipal Road Design Optimization based on BIM Technology
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作者 Yong Yang 《Journal of World Architecture》 2021年第3期1-4,共4页
In order to improve the implementability of municipal road design,the rational application of BIM Technology in the process of road design is a common method in current road engineering design units.The advantages of ... In order to improve the implementability of municipal road design,the rational application of BIM Technology in the process of road design is a common method in current road engineering design units.The advantages of BIM Technology,such as visualization,simulation,coordination and optimization,are increasingly recognized by the industry.In this paper,the author draws on many years of practical experience to introduce the advantages of BIM Technology,as well as how to apply BIM Technology to optimize municipal road design work and to discuss some views,in the hopes of assisting in the further improvement of the level of municipal road constructions in China. 展开更多
关键词 BIM Technology Municipal roads Design and application value analysis BIM Technology Municipal roads Design and application value analysis
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Wind-wave hindcast in the Yellow Sea and the Bohai Sea from the year 1988 to 2002 被引量:11
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作者 HE Hailun XU Yao 《Acta Oceanologica Sinica》 SCIE CAS CSCD 2016年第3期46-53,共8页
We performed long-term wind-wave hindcast in the Yellow Sea and the Bohai Sea from the year 1988 to 2002, and then analyzed the regional wave climate. Comparisons between model results and satellite data are generally... We performed long-term wind-wave hindcast in the Yellow Sea and the Bohai Sea from the year 1988 to 2002, and then analyzed the regional wave climate. Comparisons between model results and satellite data are generally consistent on monthly mean significant wave height. Then we discuss the temporal and spatial characteristics of the climatological monthly mean significant wave heights and mean wave periods. The climatologically spatial patterns are observed as increasing from northwest to southeast and from offshore to deep-water area for both significant wave height and mean wave period, and the patterns are highly related to the wind forcing and local topography. Seasonal variations of wave parameters are also significant. Furthermore, we compute the extreme values of wind and significant wave height using statistical methods. Results reveal the spatial patterns of N-year return significant wave height in the Yellow Sea and the Bohai Sea, and we discuss the relationship between extreme values of significant wave height and wind forcing. 展开更多
关键词 wave climate extreme value analysis the Yellow Sea wave hindcast WAVEWATCH-Ⅲ
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洞庭湖区域夏季降水与全球大洋海温异常关系的SVD分析(英文) 被引量:1
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作者 彭莉莉 罗伯良 张超 《Meteorological and Environmental Research》 CAS 2010年第11期28-32,共5页
By dint of the summer precipitation data from 21 stations in the Dongting Lake region during 1960-2008 and the sea surface temperature(SST) data from NOAA,the spatial and temporal distributions of summer precipitation... By dint of the summer precipitation data from 21 stations in the Dongting Lake region during 1960-2008 and the sea surface temperature(SST) data from NOAA,the spatial and temporal distributions of summer precipitation and their correlations with SST are analyzed.The coupling relationship between the anomalous distribution in summer precipitation and the variation of SST has between studied with the Singular Value Decomposition(SVD) analysis.The increase or decrease of summer precipitation in the Dongting Lake region is closely associated with the SST anomalies in three key regions.The variation of SST in the three key regions has been proved to be a significant previous signal to anomaly of summer rainfall in Dongting region. 展开更多
关键词 Summer precipitation Sea surface temperature(SST) Singular value Decomposition(SVD) analysis Dongting Lake China
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Materials Substitute Evaluation in the Production of Cement
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作者 张友棠 CHENJun-lin ZHANGLin 《Journal of Wuhan University of Technology(Materials Science)》 SCIE EI CAS 2002年第2期97-98,共2页
The substitute of materials based on the materials of the value analysis is a valid path which can lower the cost of products. If the substitute of materials can be applied in Chinese enterprises producing cement, the... The substitute of materials based on the materials of the value analysis is a valid path which can lower the cost of products. If the substitute of materials can be applied in Chinese enterprises producing cement, the technique can be advanced, and the remarkable economic performance can also be obtained. 展开更多
关键词 value analysis substitute of materials CEMENT
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OPTIMIZATION OF DESIGN PARAMETERS FOR FLUORESCENCE LAMINAR OPTICAL TOMOGRAPHY
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作者 CHAO-WEI CHEN YU CHEN 《Journal of Innovative Optical Health Sciences》 SCIE EI CAS 2011年第3期309-323,共15页
Laminar optical tomography(LOT)is a mesoscopic tomographic imaging technique ranging between confocal microscopy and diffuse optical tomography(DOT).Fluorescence LOT(FLOT)provides depth-resolved molecular information ... Laminar optical tomography(LOT)is a mesoscopic tomographic imaging technique ranging between confocal microscopy and diffuse optical tomography(DOT).Fluorescence LOT(FLOT)provides depth-resolved molecular information with 100-200μm resolution over 2-3mm depth.In this study,we use Monte Carlo simulation and singular-value analysis(SVA)to optimize the source-detector configurations for potential enhancement of FLOT imaging performance.The effects of different design parameters,including source incidence and detector collection angles,detector number,and sampling density,are presented.The results indicate that angled incidence/detection configuration might improve the imaging resolution and depth sensitivity,especially for low-scattering medium.Increasing the number of detectors and the number of scanning steps will also result in enhanced imaging performance.We also demonstrate that the optimal imaging performance depends upon the background scattering coe±cient.Our result might provide an optimization strategy for FLOT or LOT experimental setup. 展开更多
关键词 Laminar optical tomography(LOT) fluorescence laminar optical tomography(FLOT) singular value analysis(SVA) image reconstruction
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Exploring the Three-dimensional Framework of Knowledge Service in the field of Library and Information Science(LIS)
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作者 WANG Yuefen ZHANG Beibei WU Tingting 《Chinese Journal of Library and Information Science》 2010年第2期31-47,共17页
The evolution of the society and economy has stimulated the development of Knowledge Service(KS), making it an indispensable solution to address future challenges facing libraries and information institutions. However... The evolution of the society and economy has stimulated the development of Knowledge Service(KS), making it an indispensable solution to address future challenges facing libraries and information institutions. However at present, academic research on knowledge service is falling short and its definition is far from clear and complete. As such,this article proposes the Three-dimensional Framework Knowledge Service(TdFKS) for libraries and information institutions based on the knowledge value chain model. By making reliability analysis and mean value analysis of a questionnaire survey result, the article clarifies the structure of the three-dimensional framework and verifies the rationality of the TdFKS. 展开更多
关键词 Libraries and information institutions Knowledge service Three-dimensional framework Reliability analysis Mean value analysis
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The Building of Papermaking Enterprise's Recycling Economy Evaluation Index System Based on Value Flow Analysis 被引量:1
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作者 Zhi-fang Zhou Jing Ou +1 位作者 Sha-sha Wang Xiao-hong Chen 《Frontiers of Engineering Management》 2016年第1期9-17,共9页
At present,the research on circular economy has made a lot of substantive results both at home and abroad.But for the papermaking enterprise,which is the representative of the light industry,few studies have analyzed ... At present,the research on circular economy has made a lot of substantive results both at home and abroad.But for the papermaking enterprise,which is the representative of the light industry,few studies have analyzed the evaluation index system of circular economy.Since the current material flow analyses have limitations that the researchers cannot calculate materials with different units.The authors take advantage of the intrinsic correlation between the basic principle of value flow analysis and circular economy,and then analyze the dynamic changes of material flow and value flow through enterprises internal production process.Considering the resource output,the authors set up the layered structure of the evaluation index system,and then preliminarily determine the index form.Next,the authors use the frequency statistics analysis method to adjust indicators,forming a preliminary index system.After that,the principal component analysis and independent analysis are applied for screening.Finally,the authors build a circular economy evaluation index system for papermaking enterprise to provide scientific guidance for the process of circular economy. 展开更多
关键词 circular economy the papermaking enterprise material flow analysis value flow analysis evaluation index system
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On the feasibility of re-stimulation of shale wells 被引量:4
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作者 Mohammad O.Eshkalak Umut Aybar Kamy Sepehrnoori 《Petroleum Science》 SCIE CAS CSCD 2015年第3期553-559,共7页
As a result of advances in horizontal comple- tions and multi-stage hydraulic fracturing, the U.S. has been able to economically develop several decades of worth of natural gas. However, a considerable concern has ris... As a result of advances in horizontal comple- tions and multi-stage hydraulic fracturing, the U.S. has been able to economically develop several decades of worth of natural gas. However, a considerable concern has risen on the economic viability of shale gas development for reasons associated with the fast production declines as well as recent down-turns of natural gas prices besides rises in the costs of new technologies. Therefore, an economic analysis is required to investigate the profitability of the re- fracturing treatment of unconventional gas resources. Net present value of cash flows and internal rate of return are calculated for a range of gas prices considering 20 years of natural gas production from a typical unconventional shale gas reservoir. A systematic comparison is then accom- plished for three scenarios: (1) re-fracturing versus no re- fracturing, (2) combination of re-fracturing and drilling new wells, and (3) time-dependent re-fracturing treatment. Further, this paper incorporates the cost of re-fracturing treatment, the cost of drilling a new horizontal well, the water treatment cost, as well as the current and future price of natural gas in the model. The findings of this work would help the future re-stimulation development plans of the emerging unconventional shale gas plays. 展开更多
关键词 Economic analysis - Unconventional shaleassets Hydraulic re-fracturing - Net present value Internal rate of return
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Recognition of Film Type Using HSV Features on Deep-Learning Neural Networks
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作者 Ching-Ta Lu Jia-An Lin +3 位作者 Chia-Yi Chang Chia-Hua Liu Ling-Ling Wang Kun-Fu Tseng 《Journal of Electronic Science and Technology》 CAS CSCD 2020年第1期31-41,共11页
The number of films is numerous and the film contents are complex over the Internet and multimedia sources. It is time consuming for a viewer to select a favorite film. This paper presents an automatic recognition sys... The number of films is numerous and the film contents are complex over the Internet and multimedia sources. It is time consuming for a viewer to select a favorite film. This paper presents an automatic recognition system of film types. Initially, a film is firstly sampled as frame sequences. The color space, including hue, saturation,and brightness value(HSV), is analyzed for each sampled frame by computing the deviation and mean of HSV for each film. These features are utilized as inputs to a deep-learning neural network(DNN) for the recognition of film types. One hundred films are utilized to train and validate the model parameters of DNN. In the testing phase, a film is recognized as one of the five categories, including action, comedy, horror thriller, romance, and science fiction, by the trained DNN. The experimental results reveal that the film types can be effectively recognized by the proposed approach, enabling the viewer to select an interesting film accurately and quickly. 展开更多
关键词 Deep-learning FILM TYPE RECOGNITION hue saturation and brightness value(HSV)analysis neural networks video classification
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The Nuclear Morphometric Analysis and its Clinical Value in Esophageal Cancer
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《Chinese Medical Journal》 SCIE CAS CSCD 1994年第9期44-44,共1页
The nuclear area (A)and nuclear roundness factor (NRF) of epithelial cells of 42 esophageal cancers and 10 normal esophagus’s were measured by morphometry and the results were compared with the extent of the tumor
关键词 The Nuclear Morphometric analysis and its Clinical value in Esophageal Cancer
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The Chinese Market and Its Direction──Analysis of the Theory of Market Value
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作者 闻潜 《Social Sciences in China》 1996年第4期44-49,194,共7页
关键词 analysis of the Theory of Market value The Chinese Market and Its Direction
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