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2020 5th International Conference on Advances in Energy and Environment Research, ICAEER 2020

作者： Chen, Yonghao Chen, Dandan Dou, Yuhao Song, Min Peng, Feirong Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education School of Energy and Environment Southeast University Nanjing210096 China Eng. Lab. for Energy System Process Conversion and Emission Control Technology of Jiangsu Province School of Energy and Mechanical Engineering Nanjing Normal University Nanjing210023 China China Construction Power and Environment Engineering Co. Ltd Nanjing210017 China

Na2S2O8/CuFe2O4 addition and hydrothermal pretreatment were combined in this paper to ameliorate the dewatering performance (DP) of sludge with specific-resistance of filtration (SRF), time of capillary suction (CST), and water content (Wc) as well as water types investigated. The results shown the synergistic effect between Na2S2O8/CuFe2O4 addition and hydrothermal pretreatment and the DP of sludge reached to the best when the hydrothermal temperature was 150oC, the addition amount of Na2S2O8 was 0.08 mmol/g-VSS and the mass ratio of Na2S2O8/CuFe2O4 was 2.0. Through the analysis of water distribution, it was also demonstrated that the sludge structure was destroyed with the surface moisture released. All the results obtained shown the significant impact of the combined methods on ameliorating DP of sludge and promoting sludge recovery and utilization. © The Authors, published by EDP Sciences, 2020.

关键词： Copper compounds

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Multi-component quantitative and feed-forward neural network for pattern classification of raw and wine-processed Corni Fructus

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Traditional Medicine Research 2023年第1期8卷 12-19页

作者： Yu Liu Ying-Fang Cui Dan-Dan Shi Shu-Li Man Xia Li Wen-Yuan Gao State Key Laboratory of Food Nutrition and Safety/Key Laboratory of Industrial Microbiology Ministry of Education/Tianjin Key Laboratory of Industry Microbiology/National and Local United Engineering Lab of Metabolic Control Fermentation Technology/China International Science and Technology Cooperation Base of Food NutritionSafety and Medicinal Chemistry/College of BiotechnologyTianjin University of Science&TechnologyTianjin 300457China Tianjin Key Laboratory for Modern Drug Delivery&High-Efficiency School of Pharmaceutical Science and TechnologyTianjin UniversityTianjin 300072China.

Background:To promote the quality evaluation,clarify the processing mechanism and distinguish origins of Corni Fructus(cornus)from different ***:This study developed a high performance liquid chromatography method for simultaneous determination of 5-hydroxymethylfurfural,2 phenolic acids and 4 iridoid glycosides and the reference fingerprint of cornus from different *** addition,the feedforward neural network model provided a pattern classification of sample ***:The content of morroniside and loganin were the highest in all raw cornus samples ranging from 9.45μg/mg to 16.3μg/mg and 6.64μg/mg to 13.7μg/mg,*** level of sweroside in raw cornus from Henan(0.83μg/mg^(-1).39μg/mg)and Zhejiang(0.64μg/mg^(-1).17μg/mg)were greater than other *** wine-processing,the glucose or fructose were dehydrated to increase the levels of *** C-4 position of-COOCH3 of hot-sensitive iridoid glycosides was hydrolyzed to generate-COOH as stable *** derivatives may be degraded to increase the content of phenolic ***,an excellent feedforward neural network model for identification of raw cornus and wine-prepared cornus was established which could distinguish the sample ***:This work provided a trustworthy method to evaluate the quality and distinguish the sources of ***,the clear processing mechanism provided a scientific foundation for controlling the cornus quality during wine-processing.

关键词： Cornus officinalis Sieb.et Zucc. quality evaluation fingerprints processing mechanism feedforward neural network

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Multi-pipeline System Scheduling under Demand Uncertainty

Multi-pipeline System Scheduling under Demand Uncertainty

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第26届中国过程控制会议（CPCC2015）

作者： Wang Jishuai Gu De Suzhou Institute of Biomedical Engineering and Technology Chinese Academy of Sciences State Key Lab.of Industrial Control Technology Institute of Cyber-systems and Control Zhejiang University Key Laboratory of Advanced Process Control for Light Industry (Ministry of Education) Institute of Automation Jiangnan University

In this paper, a discrete mathematical approach to solve scheduling of multi-pipeline systems for petroleum products under demand uncertainty is presented. To deal with the uncertainty, the conditional value-at-risk(CVAR) analysis is adopted as a risk measure. Firstly an improved scheduling approach is proposed to model the multi-pipeline system with the consideration of different pipeline segment sizes. The improved formulation is computationally intractable when pipeline segments have distinct capacities. Then the model takes a scenario-based approach to cope with uncertainty in a CVAR framework. Computational results are presented to demonstrate the effectiveness of the proposed approach. All the instances are implemented using CPLEX.

关键词： Multiproduct pipeline Scheduling MILP formulation Pump

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Evaluating the Moderated Mediation Effects Of Switching Costs in the Link between Social Capital and NPD Performance

SSRN

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SSRN 2023年

作者： Li, Yi Ndubisi, Nelson Oly Li, Gang Xu, Jinpeng School of Economics & Management Xidian University Xi’an China College of Business & Economics Qatar University Doha Qatar School of Management Xi’an Jiao tong University Xi'An China The State Key Lab for Manufacturing Systems Engineering Xi’an China The Key Laboratory of the Ministry of Education for Process Control and Efficiency Projects Xi’an China

In this study, we explore the causes of switching costs from both supplier and customer side, discuss the performance outcomes in the setting of new product development, and investigate the role that switching costs play as moderators and mediators in social capital-new product development performance *** on data from 214 Chinese manufacturers, we employ the structural equation model to examine our conceptual model and hypotheses. Our results indicate that relationship quality and customer involvement separately positively and negatively affect switching costs, respectively, which negatively affects new product development performance. Switching costs mediate and moderate the relationship between social capital and new product development performance. Our findings indicate that switching costs significantly and positively moderate the relationship between relationship quality and new product development performance. On the other hand, switching costs insignificantly and negatively moderate the relationship between customer involvement and new product development performance. © 2023, The Authors. All rights reserved.

关键词： Product development

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Multiple-Disturbance Rejection for High Precision Positioning of a VCM Servo Gantry

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IFAC Proceedings Volumes 2014年第3期47卷 2052-2057页

作者： Zeshan Lyu Peng Yan Zhen Zhang Lei Guo School of Automation Science and Electrical Engineering Beihang University Beijing 100191 China Key Laboratory of High-efficiency and Clean Mechanical Manufacturing Ministry of Education School of Mechanical Engineering Shandong University Jinan Shandong 250061 China Beijing Key Lab of Precision/Ultra-Precision Manufacturing Equipment and Control Department of Mechanical Engineering Tsinghua University Beijing 100084 China

This paper presents an multiple disturbance rejection approach for rejecting narrow-band disturbances as well as norm-bounded random disturbances, with applications to high precision positioning of a Voice Coil Motor (VCM) actuated servo stage. An adaptive optimal phase filter design method is proposed for the rejection of frequency-varying narrow-band disturbances at unknown frequency range. With a parallel connection of the proposed adaptive filter, a robust H ∞ controller can be synthesized with mixed sensitivity optimization for the purpose of both robust stability and rejection of norm-bounded random disturbances. The proposed control architecture is implemented to a VCM servo gantry to achieve high precision positioning in the presence of various disturbances.

关键词： Mechatronics Disturbance Rejection Adaptive Filter Robust control

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The impact of consumer price forecasting behaviour on the bullwhip effect

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International Journal of Production Research 2014年第22期52卷 6642页

作者： Wang, Nengmin Ma, Yungao He, Zhengwen Che, Ada Huang, Yufei Xu, Jinpeng [a] School of Management Xi’an Jiaotong University Xian Shaanxi China[b] The Key Lab of the Ministry of Education for Process Control & Efficiency Engineering Xian Shaanxi China[c] State Grid Energy Research Institute Beijing China[d] School of Management Northwestern Polytechnical University Xian Shaanxi China[e] Department of Management Science and Innovation University College London London UK

As prices fluctuate over time, a strategic consumer may buy more in advance to reduce his or her future needs in anticipation of higher prices in the future, or may choose to postpone a purchase in anticipation of lower prices in the future. We investigate the bullwhip effect from a consumer price forecasting behavioural perspective in the context of a simple two-level supply chain composed of a supplier and a retailer. We consider two different forms for the demand function -- linear and iso-elastic demand functions, both depending on the prices in multiple periods. Assuming that the retailer employs an order-up-to inventory policy with exponential smoothing forecasting technology, we derive analytical expressions for the bullwhip effect under the two demand functions, and extend the results to the multiple-retailer case. We find that consumer forecasting behaviour can reduce the bullwhip effect, most significantly when the consumer sensitivity to price changes is medium (approximately 0.5) for both the demand forms. In addition, for iso-elastic demand, the mitigation of the bullwhip effect induced by consumer price forecasting behaviour becomes more significant as the product price sensitivity coefficient and standard deviation of the price decrease. These findings are applicable to the development of managerial strategies by supply chain members that are conducive to bullwhip effect reduction through customer behaviour.

关键词： bullwhip effect oscillation consumer behaviour price forecasting linear demand iso-elastic demand

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Comparing Provincial Vehicles Cradle-to-Grave (C2g) Environmental efficiency Evaluation in China: A Network Data Envelopment Analysis (DEA) with Life Cycle Analysis (Lca) Approach

SSRN

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SSRN 2024年

作者： Tang, Guwen Wang, Nenmin Zhang, Meng School of Management Xi’an Jiaotong University Shaanxi Xi’an710049 China The Key Lab of the Ministry of Education for Process Management & Efficiency Engineering Shaanxi Xi’an710049 China School of Economics and Management Xi’an Technological University Shaanxi Xi’an710021 China

The main pollution stages and pollutants in electric vehicles (EVs) differ from those in internal combustion engine vehicles (ICEVs), thereby complicating the environmental efficiency of vehicles in regions with varying resource endowments. Most studies have focused on the energy production and usage stages in the life cycle assessment (LCA) of different vehicles in different areas. The lack of a comprehensive assessment at the vehicle manufacturing stage distorts environmental efficiency evaluation in different areas. In this study, the cradle-to-grave (C2G) lifecycles of five different environmental efficiencies of ICEVs, hybrid vehicles (HEVs), plug-in hybrid electric vehicles (PHEVs), and EVs from 30 Chinese provinces were compared. By integrating LCA with network data envelopment analysis (DEA) models, recommendations for enhancing each province’s five different environmental efficiencies were provided, and a detailed vehicle portrait for each province was created to better align with reality. The results indicated that EVs and PHEVs outperformed ICEVs regarding energy and carbon efficiencies. The use of cleaner energy sources and improvements in vehicle manufacturing, especially battery manufacturing, could further enhance the particulate matter, photochemical smog, and terrestrial acidification (TA) efficiencies of EVs and PHEVs. However, the TA efficiencies of EVs and PHEVs are still lower than those of ICEVs. The research findings provide data support on the emissions of different vehicle pollutants in 30 provinces and prioritize policy suggestions to enhance the C2G environmental efficiency of vehicles. © 2024, The Authors. All rights reserved.

关键词： Data envelopment analysis

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A Single-Item Uncapacitated Lot-Sizing Problem with Remanufacturing and Outsourcing

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Procedia engineering 2011年 15卷 5170-5178页

作者： Nengmin Wang Zhengwen He Jingchun Sun Haiyan Xie Wei Shi Management School of Xi’an JiaoTong University 710049NO.28 Xiannin Road Xian Shaanxi China The key lab of the ministry of education for process control& efficiency engineering 710049NO.28 Xiannin Road Xian Shaanxi China College of Engineering and Information Technology University of Arkansas at Little Rock 2801S. University Ave. ETAS 202 Little Rock Arkansas 72204 USA

This paper addresses the single-item, dynamic lot-sizing problem for systems with remanufacturing and outsourcing. Therein, demand and return amounts are deterministic over a finite planning horizon. Demand may be satisfied by the manufacturing of new items, remanufactured items, or outsourcing, but it cannot be backlogged. The objective of this study is to determine the lot sizes for manufacturing, remanufacturing, and outsourcing that minimise the total cost, which consists of the holding costs for returns and manufactured/remanufactured products, setup costs, and outsourcing costs. The problems addressed in this paper are an extension of those addressed by Richter et al. (2000,and 2001), Teunter et al. (2006), and Aksen et al. (2003). In this paper, the separate setup costs scheme is considered, we propose a dynamic programming approach to derive the optimal solution in the case of large quantities of returned product. The complexity of this dynamic programming approach is O ( T 2 ), wherein T is the number of periods in the planning horizon.

关键词： Lot sizing remanufacturing outsource dynamic programming

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arXiv

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arXiv 2019年

作者： Shen, Zhihao Du, Wan Zhao, Xi Zou, Jianhua School of Electronic and Information Engineering Xi'an Jiaotong University Shaanxi Engineering Research Center of Medical and Health Big Data Xi'an710049 China Department of Computer Science and Engineering University of California MercedCA95340 United States School of Management Xi'an Jiaotong University Key Lab of the Ministry of Education for Process Control & Efficiency Egineering Xi'an710049 China

Retrieving similar trajectories from a large trajectory dataset is important for a variety of applications, like transportation planning and mobility analysis. Unlike previous works based on fine-grained GPS trajectories, this paper investigates the feasibility of identifying similar trajectories from cellular data observed by mobile infrastructure, which provide more comprehensive coverage. To handle the large localization errors and low sample rates of cellular data, we develop a holistic system, cellSim, which seamlessly integrates map matching and similar trajectory search. A set of map matching techniques are proposed to transform cell tower sequences into moving trajectories on a road map by considering the unique features of cellular data, like the dynamic density of cell towers and bidirectional roads. To further improve the accuracy of similarity search, map matching outputs M trajectory candidates of different confidence, and a new similarity measure scheme is developed to process the map matching results. Meanwhile, M is dynamically adapted to maintain a low false positive rate of the similarity search, and two pruning schemes are proposed to minimize the computation overhead. Extensive experiments on a dataset of 3,186,000 mobile users and real-world trajectories of 1701 km reveal that cellSim provides high accuracy (precision 62.4% and recall of 89.8%). Copyright © 2019, The Authors. All rights reserved.

关键词： Trajectories

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Modeling and Active Disturbance Rejection control for a Piezoelectric-actuator Driven Nanopositioner

Modeling and Active Disturbance Rejection Control for a Piez...

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第三十三届中国控制会议

作者： Tongtong Leng Pengbo Liu Peng Yan Zhen Zhang Lei Guo Key Laboratory of High-efficiency and Clean Mechanical Manufacture Ministry of Education School of Mechanical EngineeringShandong University School of Automation Science and Electrical Engineering Beihang University Department of Mechanical Engineering Tsinghua University Beijing Key Lab of Precision/Ultra-Precision Manufacturing Equipment and Control Tsinghua University

ISBN: (纸本)9781479947249

This paper investigates the modeling and control problem of a novel piezoelectric-actuator(PZT) driven nanopositioner. The physical model of the nanopositioning stage is first discussed with the hysteresis nonlinearity of the PZT actuator. For the purposes of eliminating the hysteresis impact and various disturbances, an active disturbance rejection control(ADRC) algorithm is proposed, where the nonlinear dynamics of the model and external disturbances are treated as "total disturbances" which can be estimated by an extended state observer(ESO) and then compensated by a state feedback control law. The proposed algorithm is deployed in real time implementations on a nanopositioning servo platform and demonstrates good control performance in terms of high precision positioning and hysteresis elimination.

关键词： piezoelectric-actuator driven nanopositioning stage,extended state observer (ESO),active disturbance rejection control (ADRC)

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