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Original Position Statistic Distribution Analysis (OPA) Study on the Quality of Billet

Wang Haizhou,Li Meiling,Chen Jiwen,Wu Chao

Strategic Study of CAE 2003, Volume 5, Issue 10,   Pages 34-42

Abstract:

On the basis of analysis of tens of thousands of primary signals corresponding to original positionsThe weight ratio of carbon content at each original position of billet was suggested to express the degreemedian value (K) at 95 % of confidence limit of weight ratio, were provided for practical billet samples analysisThis analysis technique was characterized by the primary, original and statistical nature of measuredinformation, thus the quantitative statistic distribution analysis of chemical elements and their states

Keywords： original position statistic distribution analysis     billet     degree of porosity     degree of homogeneity     inclusion    

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Original position statistic distribution analysis (OPA) on the quality of mould steel billet

Wang Haizhou,Li Meiling,Zhang Xiuxin,Wu Chao

Strategic Study of CAE 2009, Volume 11, Issue 10,   Pages 39-47

Abstract:

Through the analysis of mould steel from different sources by the originalposition statistic distribution analysis (OPA), new information on the position, state and content distributionstatistic degree of homogeneity), the statistic density as well as the content, variety and statistic size distribution

Keywords： original position statistic distribution analysis     mould steel     degree of statistic segregation     degree    

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Original position statistic distribution analysis characterization of niobium on the vertical section

Wang Haizhou,Li Meiling,Zhuang Jingyun

Strategic Study of CAE 2011, Volume 13, Issue 10,   Pages 19-27

Abstract:

The distribution of niobium on the vertical section of casting of GH169superalloy pneumatic plate wheel was studied by original position statistic distribution analysis techniqueOn the basis of analysis to ten thousands of primary signals at the corresponding original positionsof the sample systematically, the quantitative statistic distribution information was obtained.

Keywords： original position statistic distribution analysis     superalloy pneumatic plate wheel     niobium     statistic    

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Reliability analysis of urban gas transmission and distribution system based on FMEA and correlation

Su LI,Weiguo ZHOU

Frontiers in Energy 2014, Volume 8, Issue 4,   Pages 443-448 doi: 10.1007/s11708-014-0336-4

Abstract: In order to improve the safety management of urban gas transmission and distribution system, failuremode and effects analysis (FMEA) was used to construct the reliability analysis system of the pipelineUsing FMEA along with weight analysis and expert investigation approach, the FMEA evaluation table was

Keywords： gas transmission and distribution system     risk evaluation     reliability analysis     failure mode and effectsanalysis (FMEA)     correlation operator    

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Answer for questions of repeated measurements of variance analysis and distribution test of data — Authors

Frontiers of Medicine 2022, Volume 16, Issue 4,   Pages 661-664 doi: 10.1007/s11684-021-0907-9

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Reactive power deployment and cost benefit analysis in DNO operated distribution electricity markets

Atma Ram GUPTA,Ashwani KUMAR

Frontiers in Energy 2019, Volume 13, Issue 1,   Pages 86-98 doi: 10.1007/s11708-017-0456-8

Abstract: The aim of this paper is to analyze unbalanced radial distribution systems (UBRDS) with the distributionobjective of providing reactive power support to enhance voltage profile and reduce line losses of the distributionThe analysis is conducted on a large industrial load model with light, medium and high loading scenariosFurther, the impact of load growth is also considered for better planning of the power distribution system

Keywords： unbalanced distribution system     D-STATCOM     voltage sensitivity index     load models     load growth     distribution    

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State-of-the-Art Review of High-Throughput Statistical Spatial-Mapping Characterization Technology and Its Applications Review

Haizhou Wang, Lei Zhao, Yunhai Jia, Dongling Li, Lixia Yang, Yuhua Lu, Guang Feng, Weihao Wan

Engineering 2020, Volume 6, Issue 6,   Pages 621-636 doi: 10.1016/j.eng.2020.05.005

Abstract: Highthroughput statistical spatial-mapping uses a series of rapid characterization techniques for analysisStatistical analysis can be used to select a suitable design that better meets the targeted requirements

Keywords： Material heterogeneity     High-throughput characterization     Statistical spatial-mapping     Original-positionstatistical-distribution analysis    

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Digital representation of meso-geomaterial spatial distribution and associated numerical analysis of

YUE Zhongqi

Frontiers of Structural and Civil Engineering 2007, Volume 1, Issue 1,   Pages 80-93 doi: 10.1007/s11709-007-0008-0

Abstract: past decade for the establishment of a practical approach of digital representation of the geomaterial distributionmethods are used as measurement tools to construct a digital representation for the actual spatial distributionThe digital data are further processed to automatically generate meshes or grids for numerical analysisor grids can be easily incorporated into existing numerical software packages for further mechanical analysisproposed approach is one of the latest research and developments in geomechanics where actual spatial distribution

Keywords： homogeneous     numerical analysis     Expanded     homogenization     meso-level    

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Acceleration of the particulate organic matter hydrolysis by start-up stage recovery and its original

Yanqing Duan, Aijuan Zhou, Xiuping Yue, Zhichun Zhang, Yanjuan Gao, Yanhong Luo, Xiao Zhang

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 1, doi: 10.1007/s11783-020-1304-3

Abstract: Abstract • Carbon availability was partially solved by POM recovery and fermentation. • 12% carbon sources were regenerated by fermentation of the entrapped 35% TCOD. • The unique microbial communities facilitated the efficient hydrolysis of the POM. • Considerable economic benefits in aeration power and ECS dosage were anticipated. To address the availability of carbon sources for denitrification, the accelerated hydrolysis of the most abundant but low-availability fraction of particulate organic matter (POM) was investigated. Mesh sieves with different pore sizes were used as primary pretreatment at the start-up-stage of the biological process to separate some POM from the liquid system. The changes in soluble carbohydrates and proteins were monitored to investigate the hydrolysis performance of the sieved POM, with waste activated sludge (WAS) as the control test. The results showed that an average of 35% POM could be entrapped before filtrate mat development. In addition, benefiting from the high polysaccharides concentration, as well as the high availability due to the relatively loose physical structure, a 23% hydrolysis efficiency of POM was obtained, in contrast to that of WAS (3.4%), with a hydrolysis constant of 0.39 h−1. The prominent performance was also attributed to the unique microbial communities having been domesticated at a lower temperature, especially the cellulose-degrading bacteria Paraclostridium and psychrophile Psychrobacter, making up 6.94% and 2.56%, respectively. Furthermore, the potential benefits and application of improved POM hydrolysis by start-up stage recovery via mesh sieves combined with anaerobic fermentation were evaluated, including selective POM entrapment, alleviation of blockage and wear, and a reduction in aeration energy. By the proposed strategy, carbon availability for biological nutrient removal (BNR) processes is anticipated to be improved more economically than that can be achieved by primary clarifier elimination.

Keywords： Particulate organic matter (POM)     Hydrolysis     Microbial community     Mass balance    

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Planning and analysis of the demonstration project of the MVDC distribution network in Zhuhai

Lu QU, Zhanqing YU, Qiang SONG, Zhichang YUAN, Biao ZHAO, Dawei YAO, Jianfu CHEN, Yao LIU, Rong ZENG

Frontiers in Energy 2019, Volume 13, Issue 1,   Pages 120-130 doi: 10.1007/s11708-018-0599-2

Abstract: The DC distribution system is an important development direction of the distribution system, which canFinally, it conducts the specific project design and analysis, which mainly include the selection ofequipment such as inverters, DC transformers and DC circuit breakers, the design and analysis of thescheme of the lightning arrester, and analysis of the system transient characteristics.The design and analysis of the engineering program is a combination of China’s distribution network engineering

Keywords： MVDC distribution network     DC solid state transformer     DC circuit breaker     modular multilevel converter    

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A Non-Contact Original-State Online Real-Time Monitoring Method for Complex Liquids in Industrial Processes Article

Ning Duan, Linhua Jiang, Fuyuan Xu, Ge Zhang

Engineering 2018, Volume 4, Issue 3,   Pages 392-397 doi: 10.1016/j.eng.2018.05.005

Abstract: In this study, we introduce a monitoring method capable of non-contact original-state online real-time

Keywords： Complex liquid     Original-state monitoring     Online real-time     Non-contact identification    

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Molecular analysis of bacterial community in the tap water with different water ages of a drinking waterdistribution system

Feng Wang, Weiying Li, Yue Li, Junpeng Zhang, Jiping Chen, Wei Zhang, Xuan Wu

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 3, doi: 10.1007/s11783-018-1020-4

Abstract: Bacterial community in the drinking water distribution system (DWDS) was regulated by multiple environmental

Keywords： Bacterial community     Water age     High-throughput sequencing technique     Drinking water distribution system    

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A red water occurrence in drinking water distribution systems caused by changes in water source in Beijing, China: mechanism analysis and control measures

ZHANG Xiaojian,MI Zilong,WANG Yang,LIU Shuming,NIU Zhangbin,LU Pinpin,WANG Jun,GU Junnong,CHEN Chao

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 3,   Pages 417-426 doi: 10.1007/s11783-013-0558-4

Abstract: A red water phenomenon occurred in several communities few days after the change of water source in Beijing, China in 2008. In this study, the origin of this problem, the mechanism of iron release and various control measures were investigated. The results indicated that a significant increase in sulphate concentration as a result of the new water source was the cause of the red water phenomenon. The mechanism of iron release was found that the high-concentration sulphate in the new water source disrupted the stable shell of scale on the inner pipe and led to the release of iron compounds. Experiments showed that the iron release rate in the new source water within pipe section was over 11-fold higher than that occurring within the local source water. The recovery of tap water quality lasted several months despite ameliorative measures being implemented, including adding phosphate, reducing the overall proportion of the new water source, elevating the pH and alkalinity, and utilizing free chlorine as a disinfectant instead of chloramine. Adding phosphate was more effective and more practical than the other measures. The iron release rate was decreased after the addition of 1.5 mg·L orthophosphate- P, tripolyphosphate-P and hexametaphosphate-P by 68%, 83% and 87%, respectively. Elevating the pH and alkalinity also reduced the iron release rate by 50%. However, the iron release rate did not decreased after replacing chloramine by 0.5–0.8 mg·L of free chlorine as disinfectant.

Keywords： iron release     drinking water distribution system     sulphate     phosphate     red water control     water quality stability    

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The Method and Formula for Stability Factor of Slope with State of Soil Original Stress

Wang Guoti

Strategic Study of CAE 2006, Volume 8, Issue 12,   Pages 80-84

Abstract:

The methods for analysis of stability of slope are usually considered, developed and improved alongBecause of the state of original stress in soil is ignored and disfigurement of finite slice method isIn this paper, in consideration of the state of soil original stress, the calculating formula for safety

Keywords： ateral stress coefficient K0     state of original stress     formula of safety factor of stability    

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Catheterization via direct cannulation of superior vena cava for a hemodialysis patient with an original

Li Zhou, Lin Chen, Yang Yu, Tianlei Cui, Xiao Li, Ping Fu

Frontiers of Medicine 2017, Volume 11, Issue 3,   Pages 445-448 doi: 10.1007/s11684-017-0520-0

Abstract: catheterization in the superior vena cava of a hemodialysis patient with vascular access exhaustion and originalThe distal end of the superior vena cava was localized clearly by the original CUFF under DSA.

Keywords： superior vena cava     intervention     vascular access exhaustion     catheterization     tunneled cuffed hemodialysis catheter    

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Title Author Date Type Operation

Original Position Statistic Distribution Analysis (OPA) Study on the Quality of Billet

Wang Haizhou,Li Meiling,Chen Jiwen,Wu Chao

Journal Article

Original position statistic distribution analysis (OPA) on the quality of mould steel billet

Wang Haizhou,Li Meiling,Zhang Xiuxin,Wu Chao

Journal Article

Original position statistic distribution analysis characterization of niobium on the vertical section

Wang Haizhou,Li Meiling,Zhuang Jingyun

Journal Article

Reliability analysis of urban gas transmission and distribution system based on FMEA and correlation

Su LI,Weiguo ZHOU

Journal Article

Answer for questions of repeated measurements of variance analysis and distribution test of data — Authors

Journal Article

Reactive power deployment and cost benefit analysis in DNO operated distribution electricity markets

Atma Ram GUPTA,Ashwani KUMAR

Journal Article

State-of-the-Art Review of High-Throughput Statistical Spatial-Mapping Characterization Technology and Its Applications

Haizhou Wang, Lei Zhao, Yunhai Jia, Dongling Li, Lixia Yang, Yuhua Lu, Guang Feng, Weihao Wan

Journal Article

Digital representation of meso-geomaterial spatial distribution and associated numerical analysis of

YUE Zhongqi

Journal Article

Acceleration of the particulate organic matter hydrolysis by start-up stage recovery and its original

Yanqing Duan, Aijuan Zhou, Xiuping Yue, Zhichun Zhang, Yanjuan Gao, Yanhong Luo, Xiao Zhang

Journal Article

Planning and analysis of the demonstration project of the MVDC distribution network in Zhuhai

Lu QU, Zhanqing YU, Qiang SONG, Zhichang YUAN, Biao ZHAO, Dawei YAO, Jianfu CHEN, Yao LIU, Rong ZENG

Journal Article

A Non-Contact Original-State Online Real-Time Monitoring Method for Complex Liquids in Industrial Processes

Ning Duan, Linhua Jiang, Fuyuan Xu, Ge Zhang

Journal Article

Molecular analysis of bacterial community in the tap water with different water ages of a drinking waterdistribution system

Feng Wang, Weiying Li, Yue Li, Junpeng Zhang, Jiping Chen, Wei Zhang, Xuan Wu

Journal Article

A red water occurrence in drinking water distribution systems caused by changes in water source in Beijing, China: mechanism analysis and control measures

ZHANG Xiaojian,MI Zilong,WANG Yang,LIU Shuming,NIU Zhangbin,LU Pinpin,WANG Jun,GU Junnong,CHEN Chao

Journal Article

The Method and Formula for Stability Factor of Slope with State of Soil Original Stress

Wang Guoti

Journal Article

Catheterization via direct cannulation of superior vena cava for a hemodialysis patient with an original

Li Zhou, Lin Chen, Yang Yu, Tianlei Cui, Xiao Li, Ping Fu

Journal Article