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Soft sensor design for hydrodesulfurization process using support vector regression based on WT and PCA

Journal of Central South University 2015年第2期22卷 511-521页

作者： Saeid Shokri Mohammad Taghi Sadeghi Mahdi Ahmadi Marvast Shankar Narasimhan Department of Chemical Engineering Iran University of Science and Technology (IUST) Tehran 16765?163 Iran Process & Equipment Technology Development Division Research Institute of Petroleum Industry (RIPI) Tehran 14665?137 Iran Department of Chemical Engineering IIT Madras Chennai 600036 India

A novel method for developing a reliable data driven soft sensor to improve the prediction accuracy of sulfur content in hydrodesulfurization(HDS) process was proposed. Therefore, an integrated approach using support vector regression(SVR) based on wavelet transform(WT) and principal component analysis(PCA) was used. Experimental data from the HDS setup were employed to validate the proposed model. The results reveal that the integrated WT-PCA with SVR model was able to increase the prediction accuracy of SVR model. Implementation of the proposed model delivers the best satisfactory predicting performance(EAARE=0.058 and R2=0.97) in comparison with SVR. The obtained results indicate that the proposed model is more reliable and more precise than the multiple linear regression(MLR), SVR and PCA-SVR.

关键词： soft sensor support vector regression principal component analysis wavelet transform hydrodesulfurization process

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Study on visibility of density unevenness in printed images affected by characteristics in input images 32

Study on visibility of density unevenness in printed images ...

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32nd International Conference on Digital Printing Technologies, NIP 2016

作者： Minegishi, Natsuko Uchikawa, Keiji EP Process R and D Division 1 Image Engineering Development Center R and D Headquarters Business Technologies Konica Minolta Inc. 2970 Ishikawa-machi Hachiouji-shiTokyo192-8505 Japan Department of Information Processing Tokyo Institute of Technology 4259-G2-1 Nagatsuta-cho Midori-ku Yokohama226-8502 Japan Tokyo Institute of Technology Faculty of Human Sciences Research Institute for Multimodal Sensory Science Kanagawa University 3-27-1 Rokkakubashi Kanagawa-ku YokohamaKanagawa221-8686 Japan

ISBN: (纸本)9780892083220

Visibility of density unevenness area appeared on printed images varies depending on some characteristics of input images. We focused on Saliency and Spatial frequency of tone distribution as those characteristics to clarify a mechanism for perceiving image noise. In this study, we performed examinations for detecting density unevenness area. Shapes of the density unevenness are circle and belt-like. As results, we found that specific spatial frequency components in original tone distribution, which is similar to that of the density unevenness, correlated with the visibility of density unevenness. Trends between statistic values of saliency and visibility of density unevenness showed different depending on the polarity of density change. We could not clarify factors of this phenomenon. Finally, those statistic values of saliency which we studied were not proved as parameters affecting to visibility of density unevenness. All correlations for belt-like density unevenness were weaker than in case of circle. Some impacts of their size or continuity were supposed. © 2016 Society for Imaging Science and Technology.

关键词： Visibility

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Application of Blackboard Model based Multiagent Negotiation System in the Distributed Design of Device-layer Network

Application of Blackboard Model based Multiagent Negotiation...

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第27届中国控制与决策会议

作者： BAI Song GAO Shihong QIAN Xiaolong NHI Oil Equipment Engineering Research and Development Institute Key Laboratory of Process Industry Automation of MOE Northeastern University Shanxi University

ISBN: (纸本)9781479970186

Implementing data exchange and cooperation in the case that equipment is decentralized has been the most critical problem in controlling device-layer *** order to solve this problem,the Multiagent negotiation system,which has been considered as the cutting-edge technology of constructing large-scale distributed information processing system,is adopted to design SERCOS network control system of tyre bead ring forming ***,by analyzing the data mapping process of DeviceNet and CC-Link,it is concluded that the data mapping in device-layer network is potentially in compliance with blackboard model ***,by considering the process requirements,both logic information and control information are integrated in ControlLogix system,which is provided by Rockwell ***,Multiagent cooperation control system of meridian-tyre bead ring forming machine,in which agents are operated by means of autonomous decision-making and consultation with each other,is successfully *** operation results show that,servo axes can make precision movement,the shape of hexagonal bead ring is regular,and wire is arranged tightly and orderly without overlap and segregation.

关键词： Multiagent Negotiation System Blackboard Model Device-layer Network Data Mapping

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Application of blackboard model based multiagent negotiation system in the distributed design of device-layer network 27

Application of blackboard model based multiagent negotiation...

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27th Chinese Control and Decision Conference, CCDC 2015

作者： Song, Bai Shihong, Gao Xiaolong, Qian NHI Oil Equipment Engineering Research and Development Institute Shenyang China Key Laboratory of Process Industry Automation of MOE Northeastern University Shenyang China Shanxi University Taiyuan China

ISBN: (纸本)9781479970179

Implementing data exchange and cooperation in the case that equipment is decentralized has been the most critical problem in controlling device-layer network. In order to solve this problem, the Multiagent negotiation system, which has been considered as the cutting-edge technology of constructing large-scale distributed information processing system, is adopted to design SERCOS network control system of tyre bead ring forming machine. Firstly, by analyzing the data mapping process of DeviceNet and CC-Link, it is concluded that the data mapping in device-layer network is potentially in compliance with blackboard model theory. Secondly, by considering the process requirements, both logic information and control information are integrated in ControlLogix system, which is provided by Rockwell Automation. Finally, Multiagent cooperation control system of meridian-tyre bead ring forming machine, in which agents are operated by means of autonomous decision-making and consultation with each other, is successfully constructed. Actual operation results show that, servo axes can make precision movement, the shape of hexagonal bead ring is regular, and wire is arranged tightly and orderly without overlap and segregation. © 2015 IEEE.

关键词： Blackboard Model Data Mapping Device-layer Network Multiagent Negotiation System

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development of highly active coated monolith SCR catalyst with strong abrasion resistance for low-temperature application

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Frontiers of Environmental Science & engineering 2015年第6期9卷 979-987页

作者： Lina GAN Shan LEI Jian YU Hongtao MA Yo YAMAMOTO Yoshizo SUZUKI Guangwen XU Zhanguo ZHANG State Key Laboratory of Multiphase Complex Systems Institute of Process Engineering Chinese Academy of Sciences Beijing 100190 China University of Chinese Academy of Sciences Beijing 100049 China Materials Research Department Materials Research Laboratories Research and Development Group Meidensha Corporation 8-1 Osaki 2-Chome Shinagawa-ku Tokyo 141-8565 Japan National Institute of Advanced Industrial Science and Technology (AIST) Onogawa 16-1 Tsukuba 305-8569 Japan

Monolith SCR catalysts coated with V2Os- WO3/TiO2 were prepared by varying binder and coating thickness. Comparing with a monolith extruded with 100% V2O5-WO3/TiO2 powder, a coated monolith with a catalyst-coating layer of 260 μm in thickness exhibited the similar initial NOx reduction activity at 250℃. After 4 h abrasion （attrition） in an air stream containing 300 g. m^-3 fine sands （50-100μm） at a superficial gas velocity of 10m·s^-1, the catalyst still has the activity as a 100% molded monolith does in a 24-h activity test and it retains about 92% of its initial activity at 250℃. Estimation of the equivalent durable hours at a fly ash concentration of 1.0 g.m^-3 in flue gas and a gas velocity of 5 m.s^-1 demonstrated that this coated monolith catalyst is capable of resisting abrasion for 13 months without losing more than 8% of its initial activity. The result suggests the great potential of the coated monolith for application to de-NOx of flue gases with low fly ash concentrations from, such as glass and ceramics manufacturing processes.

关键词： coated monolith low-temperature denitration,abrasion resistance attrition

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Correction: Hydrogenation of 2-methyl-3-butyn-2-ol over a Pd/ZnO catalyst: kinetic model and selectivity study

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Reaction Chemistry & engineering 2016年第5期1卷 567-567页

作者： S. Vernuccio R. Goy Ph. Rudolf von Rohr J. Medlock W. Bonrath Institute of Process Engineering ETH Zurich Sonneggstrasse 3 8092 Zurich Switzerland DSM Nutritional Products Research and Development Basel Switzerland

Correction for ‘Hydrogenation of 2-methyl-3-butyn-2-ol over a Pd/ZnO catalyst: kinetic model and selectivity study’ by S. Vernuccio et al., React. Chem. Eng., 2016, 1, 445–453.

Correction for ‘Hydrogenation of 2-methyl-3-butyn-2-ol over a Pd/ZnO catalyst: kinetic model and selectivity study’ by S. Vernuccio et al., React. Chem. Eng., 2016, 1, 445–453.

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Improvement of physico-mechanical properties of calcium carbonate filled natural nubber and low density polyethylene blends with titanate coupling agent

Improvement of physico-mechanical properties of calcium carb...

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Moratuwa engineering research Conference (MERCon)

作者： W. D. M. Sampath D. G. Edirisinghe S. M. Egodage Rubber Technology and Development Department Rubber Research Institute Ratmalana Sri Lanka Department of Chemical and Process Engineering University of Moratuwa Moratuwa Sri Lanka

Nonblack particulate fillers most used with thermoplastic and rubber are calcium carbonate, silica, talc and alumina hydrates. The main characteristics, which control the effectiveness and the dispersion of filler in the polymer, are structure, surface area and chemical activity of filler. The mechanical behavior of rubber-thermoplastic blends depends greatly on interactions and compatibility that develop between the two polymers and the filler. The main objective of this study is to improve physico-mechanical properties of calcium carbonate (CaCO 3 ) filled natural rubber (NR) and low density polyethylene (LDPE) blends using a titanate coupling agent. Two series of NR/LDPE blends, with and without titanate coupling agent, were prepared by varying LDPE loading from 10% to 90% at 10% intervals. 20 parts by weight of CaCO 3 per 100 parts of combined polymer was incorporated into every blend composition. The blends were prepared using a Brabender plasticorder by melt mixing at a temperature of 130 °C, and at a rotor speed of 60 rpm. Physico-mechanical properties such as tensile properties, hardness, tear strength and morphology of the blends were studied. These properties were determined according to ISO standards. Morphology of the tensile fracture surface of blends was observed using a transmitted light microscopy. Tensile strength, tear strength and hardness of NR/LDPE blends increase with increase in LDPE loading while elongation at break decreases. NR/LDPE blends with titanate coupling agent exhibited enhanced properties at every LDPE loading. NR/LDPE blends having 30% of LDPE loading showed highest tensile strength. In this blend, NR was dispersed in LDPE matrix with good adhesion between NR and LDPE.

关键词： Couplings Loading Titanium compounds Polymers Dispersion Rubber Morphology

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Synthesis, Crystal Structure, DNA Binding and Catalytic Activities of a New Unsymmetrical Macrocyclic Dinuclear Zn(Ⅱ) Complex

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Chinese Journal of Structural Chemistry 2014年第10期33卷 1505-1515页

作者：张华丽陈云峰宋会婷王会生潘志权 National Engineering Research Center of Phosphate Resources Development and Utilization Wuhan Institute of Technology Key Laboratory for Green Chemical Process of Ministry of Education Wuhan Institute of Technology

An unsymmetrical macrocyclic dinuclear Zn（II） complex, [Zn2（H0.5L）（OAc）]（ClO4）1.5（1, H2 L is the condensation product between 2, 6-diformyl-4-methylphenol and diethylenetriamine）, was obtained and characterized by IR spectrum, elemental analysis and X-ray single-crystal diffraction. The complex crystallizes in monoclinic, space group P21/c with a = 16.784（2）, b = 19.474（3）, c = 10.3364（13）A, β = 92.923（2）°, V = 3374.1（7） A3, Z = 4, Dc = 1.672 g/cm^3, F（000） = 1740, μ = 1.651 mm^-1, the R = 0.0609 and wR = 0.1696 for 4745 observed reflections（I 〉 2σ（I））. The interactions of the complex with DNA have been measured by electrochemical studies, UV spectroscopy and viscosity experiment. The interactions of the complex with calf thymus DNA were studied by UV-vis spectra and the binding constant is 1.58 × 10^4 mol·L^-1. The phosphate hydrolysis catalyzed by the complex was investigated using 4-nitrophenyl phosphate（NPP） as the substrate; the observed first order rate constant value is 3.0 × 10^–4 s^-1.

关键词： macrocyclic complex crystal structure DNA cleavage catalytic activities

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Antioxidant and α-glucosidase inhibitor activities of natural compounds isolated from Quercus gilva Blume leaves

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Asian Pacific Journal of Tropical Biomedicine 2015年第9期5卷 722-728页

作者： Anastasia Wheni Indrianingsih Sanro Tachibana Rizna Triana Dewi Kazutaka Itoh The United Graduate School of Agricultural Sciences Ehime University 3-5-7 TarumiMatsuyama Ehime 790-8566 Japan Research Unit for Development of Chemical Engineering Process Indonesian Institute of Sciences Gading PlayenGunungkidul Yogyakarta 55581Indonesia Department of Applied Biosciences Faculty of Agriculture Ehime University 3-5-7 Tarumi MatsuyamaEhime 790-8566 Japan Research Center for Chemistry Indonesian Institute of Sciences Kawasan Puspiptek SerpongTangerang Selatan 15314 Indonesia

Objective: To isolate and investigate antioxidant and α-glucosidase inhibitor compounds in the leaves of Quercus gilva Blume(Q. gilva).Methods: Dry leaves of Q. gilva were extracted with methanol and the methanolic extract was further separated by silica gel column chromatography using several solvents with increasing polarity. The antioxidant activities of the isolated compounds were evaluated using various in vitro assays: 1,1-diphenyl-2-picrylhydrazyl radical scavenging activity, hydrogen peroxide radical scavenging activity, β-carotene bleaching assay, and reducing power assay. The α-glucosidase inhibitory assay was conducted against α-glucosidase from Saccharomyces ***: Three compounds were isolated and their structures were identii ed as catechin(1), epicatechin(2), and tiliroside(3) using an instrumental analysis. Compound 2 had higher antioxidant activity with inhibitory concentrations(IC50) of(22.55 ± 2.23) μmol/L than that of quercetin, which was used as the standard, with an IC50 of(28.08 ± 2.39) μmol/L, followed by compound 1 with IC50 of(40.86 ± 3.45) μmol/L. On the other hand, compound 3 had the lowest antioxidant activity with an IC50 of(160.24 ± 8.15) μmol/L. However, compound 3 had the highest α-glucosidase inhibitory activity with an IC50 of(28.36 ± 0.11) μmol/L, followed by compounds 1 and 2 with(168.60 ± 5.15) and(920.60 ± 10.10) μmol/L, ***: The results obtained for the antioxidant activities and α-glucosidase inhibitory activities in a methanolic extract from the leaves of Q. gilva coni rmed the potential of this plant as a source of natural antioxidants and antidiabetic medicine.

关键词： Quercus gilva Blume Antioxidative activity α-Glucosidase inhibitor Lineweaver-Burk plot

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Optimal reconfiguration of unbalanced distribution systems using a new hybrid Big Bang-Big Crunch algorithm for loss reduction

Optimal reconfiguration of unbalanced distribution systems u...

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Conference on Electrical Power Distribution Networks (EPDC)

作者： S. Ahmadi Sh. Abdi Process and Equipment Technology Development Division Research Institute of Petroleum Industry (RIPI) Tehran Iran Faculty of Engineering and Technology Imam Khomeini International University (IKIU) Qazvin Iran

Distribution systems reconfiguration is a simple and low-cost method which without adding additional equipment in the network optimizes the utilization of distribution systems. In this paper, a new hybrid Big Bang-Big Crunch optimization (HBB-BC) algorithm is proposed to solve the optimal reconfiguration of unbalanced distribution systems for loss reduction. During the reconfiguration, constraints like being radial, avoiding load isolation as well as voltage/current limitations must be taken into consideration. Taking these constraints into account makes reconfiguration an optimization problem. The HBB-BC algorithm is an effective and powerful method that has high accuracy and fast convergence as well as its implementation is easy. This algorithm using the Particle Swarm Optimization (PSO) capacities improves the capability of the Big Bang-Big Crunch (BB-BC) algorithm for better exploration. In addition, the HBB-BC uses a mutation operator after position updating to avoid local optimum and to explore new search areas. The effectiveness of the proposed algorithm is demonstrated on two unbalanced distribution systems.

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