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Correction to: Formaldehyde formation in the glycine cleavage system and its use for an aldolase-based biosynthesis of 1,3-propanediol

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Journal of Biological engineering 2020年第1期14卷 1-1页

作者： Yingying Xu Hao Meng Jie Ren An-Ping Zeng Beijing Advanced Innovation Center for Soft Matter Science and Engineering Beijing University of Chemical Technology North Third Ring Road 15 Chaoyang District Beijing 100029 China State Key Laboratory for Biology of Plant Diseases and Insect Pests/Key Laboratory of Control of Biological Hazard Factors (Plant Origin) for Agri-product Quality and Safety Ministry of Agriculture Institute of Plant Protection Chinese Academy of Agricultural Sciences Beijing 100081 China Institute of Bioprocess and Biosystems Engineering Hamburg University of Technology Denickestrasse 15 21073 Hamburg Germany

An amendment to this paper has been published and can be accessed via the original article.

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Sensitive Information Protection of Power IOT Based on Fuzzy control Logic

Sensitive Information Protection of Power IOT Based on Fuzzy...

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International Conference on mechatronics and Intelligent Robotics, ICMIR 2017

作者： Wang, Zheng Wang, Yubo Lu, Yongling Xu, Changfu Pang, Zhenjiang Guo, Yan State Grid Key Laboratory of Power Industrial Chip Design and Analysis Technology Beijing Smart-Chip Microelectronics Technology Co. Ltd Beijing100192 China Beijing Engineering Research Center of High-Reliability IC with Power Industrial Grade Beijing Smart-Chip Microelectronics Technology Co. Ltd Beijing100192 China State Grid Jiangsu Electric Power Company Research Institute Nanjing211103 China

ISBN: (纸本)9783319659770

With the comprehensive construction of smart grid, Internet of Things technology has been widely applied to the power generation, transmission, scheduling and many other aspects. First, a framework for the information communication system of power Internet of things is proposed Second a method based on fuzzy logic is given to judge the sensitive information. Third, the way to deal with different information is shown according to the sensitivity of the data. The feasibility and correctness of the proposed framework and method are verified by tests. © 2018, Springer International Publishing AG.

关键词： Fuzzy control

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Study on Pollutant Emission in a Natural Draft Dry Cooling tower with Flue Gas Injection based on LES

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Journal of Physics: Conference Series 2020年第1期1600卷

作者： Ying Zhou Haihong Xu Zhen Xu Li Ding Changzhou Vocational Institute of Mechatronic Technology Changzhou China Appraisal Center for Environment & Engineering Ministry of Ecology and Environment Beijing China State Environmental Protection Key Laboratory of Atmospheric Physical Modeling and Pollution Control National Environmental Protection Research Institute for Electric Power Nanjing China

This study investigated the Computational Fluid Dynamics (CFD) simulation of pollutant emission in a natural draft dry cooling tower (NDDCT) with flue gas injection. In order to predict the diffusion and distribution characteristics of the pollutant more accurately, Large Eddy Simulation (LES) was applied to predict the flow field and pollutant concentration field and compared with Reynolds Average Navier-Stokes (RANS). The relationship between pollutant concentration pulsation and velocity pulsation is emphatically analyzed. The results show that the maximum value of LES is about 43 times that of RANS for the prediction of pollutant concentration in the inner shell of cooling tower. Compared with RANS, LES can simulate flow field pulsation with a smaller scale and higher frequency.

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Iodide-Mediated Rapid and Sensitive Surface Etching of Gold Nanostars for Biosensing

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Angewandte Chemie 2021年第18期133卷

作者： Prof. Yunlei Xianyu Prof. Yiyang Lin Dr. Qu Chen Alexis Belessiotis-Richards Prof. Molly M. Stevens Dr. Michael R. Thomas College of Biosystems Engineering and Food Science Zhejiang University Hangzhou Zhejiang 310058 China Fuli Institute of Food Science Zhejiang University Hangzhou Zhejiang 310058 China Ningbo Research Institute Zhejiang University Ningbo Zhejiang 315100 China Department of Materials Department of Bioengineering and Institute of Biomedical Engineering Imperial College London London SW7 2AZ UK State Key Laboratory of Chemical Resource Engineering Beijing Laboratory of Biomedical Materials Beijing University of Chemical Technology Beijing 100029 China London Centre for Nanotechnology University College London London WC1H 0AH UK

Iodide-mediated surface etching can tailor the surface plasmon resonance of gold nanostars through etching of the high-energy facets of the nanoparticle protrusions in a rapid and sensitive way. By exploring the underlying mechanisms of this etching and the key parameters influencing it (such as iodide, oxygen, pH, and temperature), we show its potential in a sensitive biosensing system. Horseradish peroxidase-catalyzed oxidation of iodide enables control of the etching of gold nanostars to spherical gold nanoparticles, where the resulting spectral shift in the surface plasmon resonance yields a distinct color change of the solution. We further develop this enzyme-modulated surface etching of gold nanostars into a versatile platform for plasmonic immunoassays, where a high sensitivity is possible by signal amplification via magnetic beads and click chemistry.

关键词： gold nanostars horseradish peroxidase iodide plasmonic immunoassay surface etching

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Laccase immobilized on magnetic nanoparticles by dopamine polymerization for 4-chlorophenol removal

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Green Energy & Environment 2017年第4期2卷 393-400页

作者： Di Zhang Manfeng Deng Hongbin Cao Songping Zhang He Zhao Beijing Engineering Research Center of Process Pollution Control Division of Environment Technology and Engineering Institute of Process EngineeringChinese Academy of Sciences Collaborative Innovation Center of Chemical Science and Engineering State Key Laboratory of Biochemical Engineering Institute of Process Engineering Chinese Academy of Sciences

In this work, a new immobilization method based on dopamine(DA) self-polymerization was developed for laccase immobilization on magnetic nanoparticles(Fe_3O_4 NPs). To optimize the immobilization condition including reaction pH, DA concentration and enzyme concentration, a central composite response surface method was applied. The optimal condition was determined as p H value of 5.92, laccase concentration of 0.25 mg mL^(-1) and DA concentration of 12.74 mg mL^(-1), under which a high enzyme activity recovery of 88.17% was *** comparing with free laccase, the stabilities of immobilized laccase towards p H, thermostability, storage were enhanced *** 60% of relative activity for immobilized laccase was remained after being incubated for 6 h at 50℃, but the free laccase only remained 25%. After 40 days of storage at 4℃, the laccase immobilized by DA kept about 89% of its original activity, but the free laccase only retained 48%. After recycled 10 times, the relative activity of immobilized laccase still retained 70%. The immobilized laccase was then applied to catalyze the degradation of 4-chlorophenol(4-CP), 86% percentage of 4-CP was removed within 2 h. After degraded 10 times, the relative activity of immobilized laccase still remained 64% of its initial activity, which exhibits an excellent reusability and operational stability.

关键词： Magnetic nanoparticle Laccase Dopamine Immobilization 4-Chlorophenol removal

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Formation and control of disinfection byproducts and toxicity during reclaimed water chlorination： A review

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Journal of Environmental Sciences 2017年第8期29卷 51-63页

作者： Ye Du Xiao-Tong Lv Qian-Yuan Wu Da-Yin Zhang Yu-Ting Zhou Lu Peng Hong-Ying Hu Environmental Simulation and Pollution Control State Key Joint Laboratory State Environmental Protection Key Laboratory of Microorganism Application and Risk Control (SMARC) School of Environment Tsinghua University Beijing 100084 China Key Laboratory of Microorganism Application and Risk Control of Shenzhen Graduate School at Shenzhen Tsinghua University Shenzhen 518055 China Shenzhen Environmental Science and New Energy Technology Engineering Laboratory Tsinghua-Berkeley Shenzhen Institute Shenzhen518055 China

Chlorination is essential to the safety of reclaimed water; however, this process leads to concern regarding the formation of disinfection byproducts（DBPs） and toxicity. This study reviewed the formation and control strategies for DBPs and toxicity in reclaimed water during *** regulated and emerging DBPs have been frequently detected in reclaimed water during chlorination at a higher level than those in drinking water, indicating they pose a greater risk to humans. Luminescent bacteria and Daphnia magna acute toxicity, anti-estrogenic activity and cytotoxicity generally increased after chlorination because of the formation of DBPs. Genotoxicity by umu-test and estrogenic activity were decreased after chlorination because of destruction of toxic chemicals. During chlorination, water quality significantly impacted changes in *** tended to attenuate toxicity changes by reacting with chlorine to form chloramine,while bromide tended to aggravate toxicity changes by forming hypobromous acid. During pretreatment by ozonation and coagulation, disinfection byproduct formation potential（DBPFP）and toxicity formation potential（TFP） occasionally increase, which is accompanied by DOC removal; thus, the decrease of DOC was limited to indicate the decrease of DBPFP and TFP. It is more important to eliminate the key fraction of precursors such as hydrophobic acid and hydrophilic neutrals. During chlorination, toxicities can increase with the increasing chlorine dose and contact time. To control the excessive toxicity formation, a relatively low chlorine dose and short contact time were required. Quenching chlorine residual with reductive reagents also effectively abated the formation of toxic compounds.

关键词： Reclaimed water Chlorination Disinfection byproducts Toxicity Precursor

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Innovation and application of an automatic control system for gas wells production in sulige gas field

Innovation and application of an automatic control system fo...

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International Conference on Mechanical, Electric and Industrial engineering, MEIE 2018

作者： Duan, Wenguang Chen, Gang China National Petroleum Corporation Xibu Drilling Engineering Company Limited Science and Technology Department Urumqi XinJiang830011 China State Key Laboratory of Petroleum Pollution Control CNPC Research Institute of Safety and Environmental Technology Beijing102206 China College of Chemistry and Chemical Engineering Xi'An Shiyou University Xi'an Shaanxi710065 China Shaanxi Prov. Key Lab. of Environ. Poll. Control and Reservoir Protection Technology of Oilfields Xi'an Shaanxi710065 China

In this paper, based on the advantages of imported control system and equipment, we designed a new type of automatic control system and equipment for gas well dewatering, by which the daily use of mobile phone can be used as a remote control terminal system. It has the advantages of convenient use, low cost, no need to design the PC software, free maintenance and upgrade PC software costs. Sulige Gas Field has used this system on 20 wells for mass operation test. The systems are till working until now, the equipment runs stably, and the economic benefit is remarkable. U disk data extraction is fast and convenient, and the management cost is reduced by 80%. The number of managing wells of per person is increased. © Published under licence by IOP Publishing Ltd.

关键词： control systems

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A viewpoint on catalytic origin of boron nitride in oxidative dehydrogenation of light alkanes

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Chinese Journal of Catalysis 2018年第5期39卷 908-913页

作者： Lei Shi Dongqi Wang An-Hui Lu State Key Laboratory of Fine Chemicals School of Chemical EngineeringDalian University of TechnologyDalian 116024LiaoningChina Center for Multi-disciplinary Research Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China

Oxidative dehydrogenation of light alkanes to alkenes is an attractive alternative route for industrial direct dehydrogenation because of favorable thermodynamic and kinetic characteristics,but encounters difficulties in selectivity control for alkenes because of over-oxidation reactions that produce a substantial amount of undesired carbon *** progress has revealed that boron nitride is a highly promising catalyst in the oxidative dehydrogenation of light alkanes because of its superior selectivity for and high productivity of light alkenes,negligible formation of CO2,and remarkable catalyst *** this viewpoint,recent works on boron nitride in the oxidative dehydrogenations of ethane,propane,butane,and ethylbenzene are reviewed,and the emphasis of this viewpoint is placed on discussing the catalytic origin of boron nitride in oxidative dehydrogenation *** analyzing recent progress in the use of boron nitride for oxidative dehydrogenation reactions and finding much new evidence,we conclude that pure boron nitride is catalytically inert,and an activation period is required under the reaction conditions;this process is accompanied by an oxygen functionalization at the edge of boron nitride;the B-O species themselves have no catalytic activity in C-H cleavage,and the B-OH groups,with the assistance of molecular oxygen,play the key role in triggering the oxidative dehydrogenation of propane;the dissociative adsorption of molecular oxygen is involved in the reaction process;and a straightforward strategy for preparing an active boron nitride catalyst with hydroxyl groups at the edges can efficiently enhance the catalytic efficacy.A new redox reaction cycle based on the B-OH sites is also ***,as this is a novel catalytic system,there is an urgent need to develop new methods to optimize the catalytic performances,clarify the catalytic function of boron species in the alkane ODH reactions,and disclose the reaction mechanism u

关键词： Boron nitride Zig-zag edge B-OH group Light alkanes Oxidative dehydrogenation Induction period

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Search for stealth supersymmetry in final states with two photons, jets, and low missing transverse momentum in proton-proton collisions at √s = 13 TeV

arXiv

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arXiv 2023年

作者： Hayrapetyan, A. Tumasyan, A. Adam, W. Andrejkovic, J.W. Bergauer, T. Chatterjee, S. Damanakis, K. Dragicevic, M. Escalante Del Valle, A. Hussain, P.S. Jeitler, M. Krammer, N. Liko, D. Mikulec, I. Schieck, J. Schöfbeck, R. Schwarz, D. Sonawane, M. Templ, S. Waltenberger, W. Wulz, C.-E. Darwish, M.R. Janssen, T. Van Mechelen, P. Bols, E.S. D’Hondt, J. Dansana, S. De Moor, A. Delcourt, M. El Faham, H. Lowette, S. Makarenko, I. Morton, A. Müller, D. Sahasransu, A.R. Tavernier, S. Tytgat, M. Van Putte, S. Vannerom, D. Clerbaux, B. De Lentdecker, G. Favart, L. Hohov, D. Jaramillo, J. Mahdavikhorrami, M. Malara, A. Paredes, S. Pétré, L. Vander Velde, C. Vanlaer, P. De Coen, M. Dobur, D. Knolle, J. Lambrecht, L. Mestdach, G. Rendón, C. Samalan, A. Skovpen, K. Van Den Bossche, N. Vermassen, B. Wezenbeek, L. Benecke, A. Bruno, G. Caputo, C. Delaere, C. Donertas, I.S. Giammanco, A. Jaffel, K. Jain, Sa. Lemaitre, V. Lidrych, J. Mastrapasqua, P. Mondal, K. Tran, T.T. Wertz, S. Alves, G.A. Coelho, E. Hensel, C. De Oliveira, T. Menezes Moraes, A. Teles, P. Rebello Soeiro, M. Aldá Júnior, W.L. Pereira, M. Alves Gallo Filho, M. Barroso Ferreira Malbouisson, H. Bran Carvalho, W. Chinellato, J. Da Costa, E.M. Da Silveira, G.G. De Jesus Damiao, D. De Souza, S. Fonseca Martins, J. Herrera, C. Mora Amarilo, K. Mota Mundim, L. Nogima, H. Santoro, A. Silva Do Amaral, S.M. Sznajder, A. Thiel, M. Vilela Pereira, A. Bernardes, C.A. Calligaris, L. Fernandez Perez Tomei, T.R. Gregores, E.M. Mercadante, P.G. Novaes, S.F. Orzari, B. Padula, Sandra S. Aleksandrov, A. Antchev, G. Hadjiiska, R. Iaydjiev, P. Misheva, M. Shopova, M. Sultanov, G. Dimitrov, A. Ivanov, T. Litov, L. Pavlov, B. Petkov, P. Petrov, A. Shumka, E. Keshri, S. Thakur, S. Cheng, T. Guo, Q. Javaid, T. Mittal, M. Yuan, L. Bauer, G. Hu, Z. Yi, K. Chen, G.M. Chen, H.S. Chen, M. Iemmi, F. Jiang, C.H. Kapoor, A. Liao, H. Liu, Z.-A. Monti, F. Sharma, R. Song, J.N. Tao, J. Wang, J. Zhang, H. Agapitos, A. Ban, Y. Levin, A. Li, C. Li, Q. Yerevan Physics Institute Yerevan Armenia Institut für Hochenergiephysik Vienna Austria Universiteit Antwerpen Antwerpen Belgium Vrije Universiteit Brussel Brussel Belgium Université Libre de Bruxelles Bruxelles Belgium Ghent University Ghent Belgium Université Catholique de Louvain Louvain-la-Neuve Belgium Centro Brasileiro de Pesquisas Fisicas Rio de Janeiro Brazil Universidade do Estado do Rio de Janeiro Rio de Janeiro Brazil Universidade Estadual Paulista Universidade Federal do ABC São Paulo Brazil Institute for Nuclear Research and Nuclear Energy Bulgarian Academy of Sciences Sofia Bulgaria University of Sofia Sofia Bulgaria Instituto De Alta Investigación Universidad de Tarapacá Casilla 7 D Arica Chile Beihang University Beijing China Department of Physics Tsinghua University Beijing China Institute of High Energy Physics Beijing China State Key Laboratory of Nuclear Physics and Technology Peking University Beijing China Sun Yat-Sen University Guangzhou China University of Science and Technology of China Hefei China Fudan University Shanghai China Zhejiang University Zhejiang Hangzhou China Universidad de Los Andes Bogota Colombia Universidad de Antioquia Medellin Colombia University of Split Faculty of Electrical Engineering Mechanical Engineering and Naval Architecture Split Croatia University of Split Faculty of Science Split Croatia Institute Rudjer Boskovic Zagreb Croatia University of Cyprus Nicosia Cyprus Charles University Prague Czech Republic Escuela Politecnica Nacional Quito Ecuador Universidad San Francisco de Quito Quito Ecuador Academy of Scientific Research and Technology of the Arab Republic of Egypt Egyptian Network of High Energy Physics Cairo Egypt Fayoum University El-Fayoum Egypt National Institute of Chemical Physics and Biophysics Tallinn Estonia Department of Physics University of Helsinki Helsinki Finland Helsinki Institute of Physics Helsinki Finland Lappeenranta-Lahti University of Technology

The results of a search for stealth supersymmetry in final states with two photons and jets, targeting a phase space region with low missing transverse momentum (pmissT ), are reported. The study is based on a sample of proton-proton collisions at √s = 13 TeV collected by the CMS experiment, corresponding to an integrated luminosity of 138 fb−1. As LHC results continue to constrain the parameter space of the minimal supersymmetric standard model, the low pmissT regime is increasingly valuable to explore. To estimate the backgrounds due to standard model processes in such events, we apply corrections derived from simulation to an estimate based on a control selection in data. The results are interpreted in the context of simplified stealth supersymmetry models with gluino and squark pair production. The observed data are consistent with the standard model predictions, and gluino (squark) masses of up to 2150 (1850) GeV are excluded at the 95% confidence level. © 2023, CC BY.

关键词： Photons

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Lateral control of autonomous vehicles based on learning driver behavior via cloud model

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The Journal of China Universities of Posts and Telecommunications 2017年第2期24卷 10-17页

作者： Gao Hongbo Xie Guotao Liu Hongzhe Zhang Xinyu Li Deyi State Key Laboratory of Automotive Safety and Energy Tsinghua University Beijing Key Laboratory of Information Service Engineering Beijing Union University Information Technology Center Tsinghua University The 61th Institute of Electronic System Engineering

In order to achieve the lateral control of the intelligent vehicle, use the bi-cognitive model based on cloud model and cloud reasoning, solve the decision problem of the qualitative and quantitative of the lateral control of the intelligent vehicle. Obtaining a number of experiment data by driving a vehicle, classify the data according to the concept of data and fix the input and output variables of the cloud controller, design the control rules of the cloud controller of intelligent vehicle, and clouded and fix the parameter of cloud controller： expectation, entropy and hyper entropy. In order to verify the effectiveness of the cloud controller, joint simulation platform based on Matlab/Simulink/CarSim is established. Experimental analysis shows that： driver＇s lateral controller based on cloud model is able to achieve tracking of the desired angle, and achieve good control effect, it also verifies that a series of mental activities such as feeling, cognition, calculation, decision and so on are fuzzy and uncertain.

关键词： cloud model driver behavior autonomous vehicles lateral control

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