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American control Conference

作者： Neeraja Srinivasan Nirav Bhatt Sridharakumar Narasimhan Systems and Control group Indian Institute of Technology Madras Chennai India Department of Biotechnology and member Robert Bosch Centre for Data Science and Artificial Intelligence and Initiative for Biological Systems Engineering Indian Institute of Technology Madras Chennai India Department of Chemical Engineering and member of the Robert Bosch Centre for Data Science and Artificial Intelligence Indian Institute of Technology Madras Chennai India

ISBN: (数字)9781538682661

ISBN: (纸本)9781538682678

The Kalman filter and its variants have been developed for state estimation in semi-explicit, index-1 DAE systems in current literature. In this work, we develop a method for state estimation in non-linear fully-implicit, index-1 differential algebraic equation (DAEs) systems. In order to extend the Kalman filtering techniques for fully-implicit index-1 DAE systems, in the correction step we convert the fully-implicit DAE into a system of ordinary differential equations (ODEs). This is achieved by the index reduction of DAE using the method of successive differentiation of algebraic equations. This is a challenging problem as the fully-implicit DAE system does not contain explicit algebraic states unlike in the semi-explicit case. In this work, we propose a linear transformation of the mass matrix which enables us to find candidate algebraic states for the system. This transformation on the mass matrix is relatively simpler than constructing the transformation matrices in the Weierstrass-Kronecker canonical form. We illustrate our proposed method with two examples, a linear and a non-linear fully-implicit index-1 DAE system.

关键词： Mathematical model Kalman filters Indexes Differential equations State estimation Computational modeling

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Synthesis and characterization of ZrFe₂O₄@SiO₂@Ade-Pd as a novel, recyclable, green, and versatile catalyst for Buchwald–Hartwig and Suzuki–Miyaura cross-coupling reactions

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Scientific Reports 2023年第1期13卷 1-16页

作者： Saadh, Mohamed J. Khasawneh, Hussam Elddin Nabieh Ortiz, Geovanny Genaro Reivan Ahsan, Muhammad Sain, Dinesh Kumar Yusuf, Kareem Sillanää, Mika Iqbal, Amjad Akhavan-Sigari, Reza Faculty of Pharmacy Middle East University Amman 11831 Jordan Applied Science Research Center Applied Science Private University Amman Jordan Chemical Engineering Department Al-Balqa Applied University Salt Jordan Laboratory of Basic Psychology Behavioral Analysis and Programmatic Development (PAD-LAB) Catholic University of Cuenca Cuenca Ecuador Department of Measurements and Control Systems Silesian University of Technology Gliwice 44-100 Poland Department of Chemistry Faculty of Science S.P. College Sirohi Rajasthan Sirohi 307001 India Department of Chemistry College of Science King Saud University P. O. Box 2455 Riyadh 11451 Saudi Arabia Department of Biological and Chemical Engineering Aarhus University Nørrebrogade 44 Aarhus 8000 Denmark Joint Doctoral School Silesian University of Technology Gliwice 44-100 Poland Department of Health Care Management and Clinical Research Collegium Humanum Warsaw Management University Warsaw Poland Department of Neurosurgery University Medical Center Tuebingen Tuebingen Germany

This work presents the simple synthesis of a green and novel Palladium based magnetic nanocatalyst with effective catalytic properties and reusability. These heterogeneous catalysts were prepared by the anchoring of Pd(0) on the surface of ZrFe₂O₄ MNPs coated with a di-substituted adenine (Ade) compound as a green linker. The as-synthesized ZrFe₂O₄@SiO₂@Ade-Pd MNPs were methodically characterized over different physicochemical measures like VSM, EDX, Map, SEM, TEM, ICP, and FT-IR analysis. The catalytic activity of ZrFe₂O₄@SiO₂@Ade-Pd was carefully examined for the room-temperature Carbon–Carbon coupling reaction in acetonitrile as a solvent. It is worth noting that the synthesized solid catalyst can be easily recovered with a bar magnet and reused for five cycles without decrease of catalytic activity. © 2023, Springer Nature Limited.

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Optimal design of the inlet temperature based periodic operation of non-isothermal CSTR using nonlinear output frequency response functions

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IFAC-PapersOnLine 2018年第18期51卷 620-625页

作者： Shi, Hongyan Lang, Z.Q. Zhu, Yunpeng Yuan, Decheng Wang, Wei Department of Information Engineering Shenyang University of Chemical and Technology Shenyang110142 China Department of Automatic and Control and Systems Engineering University of Sheffield SheffieldS1 3JD United Kingdom Department of Control Science and Engineering Dalian University of Technology Dalian116024 China

The periodic operation of a non-isothermal continuous stirred tank reactor (CSTR) using inlet temperature modulation is investigated in this paper. The DC component of the CSTR output concentration is optimized by tuning the modulation parameters of the inlet temperature in order to achieve a maximum conversion using a Nonlinear Output Frequency Response Functions (NOFRFs) based approach. The results show that the new approach is fast and efficient in the analysis and design of the periodic operation of CSTR and can potentially be applied to conduct the optimal design of periodic operation of other chemical engineering processes. © 2018

关键词： Optimal systems chemical analysis Frequency response Isotherms Modulation chemical engineering process Continuous stirred tank reactor Frequency domains Modulation parameters Non linear output frequency response function Optimal design Output concentrations Periodic operation

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Systematic synthesis of rare sugars and stereospecific conversion via photocatalysis

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Scientific Reports 2025年第1期15卷 1-11页

作者： Patil, Pratiksha Babgonda Usuki, Sho Taki, Naoko Uesaka, Yuma Latthe, Sanjay S. Liu, Shanhu Yamatoya, Kenji Nakata, Kazuya Graduate School of Bio-Applications and Systems Engineering Tokyo University of Agriculture and Technology 2-24-16 Naka-cho Koganei Tokyo 184-0012 Japan Vivekanand College C.S. No 2130 E Ward Tarabai Park Maharashtra Kolhapur 416 003 India Henan Joint International Research Laboratory of Environmental Pollution Control Materials Henan Key Laboratory of Polyoxometalate Chemistry College of Chemistry and Chemical Engineering Henan University Kaifeng 475004 China Laboratory of Genomic Function Engineering Department of Life Sciences School of Agriculture Meiji University 1-1-1 Higashimita Tama-ward Kanagawa Kawasaki 214-8571 Japan

Rare sugars have gained attention as potential raw materials for pharmaceuticals and functional foods. Photocatalysis presents a promising approach for rare sugar synthesis due to its mild reaction conditions and environmental compatibility. While previous photocatalytic methods reported individual routes for specific rare sugars, systematic synthesis through a unified methodology has not been achieved, and control of optical isomers remains insufficiently explored. This study investigated a comprehensive photocatalytic approach for the systematic conversion of monosaccharides with stereochemical configuration preservation. When d-glucose in aqueous solution underwent photocatalytic treatment under UV irradiation, d-arabinose formation was confirmed through HPLC, LCMS, and ¹H NMR analyses. Similarly, d-lyxose, d-ribose, and d-xylose were produced from d-galactose, d-allose, and d-gulose, respectively. Further photocatalytic treatment of these aldopentoses yielded corresponding aldotetroses—d-erythrose from d-ribose and d-arabinose, and d-threose from d-lyxose and d-xylose. This demonstrated successful systematic conversion from aldohexoses to aldopentoses and subsequently to aldotetroses in a single reaction system. Moreover, when l-glucose and l-arabinose were used as starting materials, l-arabinose and l-erythrose were obtained, respectively, confirming stereochemical configuration preservation throughout the conversion process. This method provides a systematic approach for rare sugar synthesis while controlling stereochemical configurations. © The Author(s) 2025.

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Distributed Functional Safety for Modular Process Plants

Distributed Functional Safety for Modular Process Plants

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International Conference on Emerging Technologies and Factory Automation (ETFA)

作者： Anselm Klose Florian Pelzer Mike Barth Rainer Drath Rainer Oehlert Silvia Vélez León Alexander Horch Christoph Kotsch Jochen Knab Bernhard Gut Hartmut Manske Leon Urbas Process Control Systems & Process Systems Engineering TU Dresden Dresden Germany Research Training Group 2323 TU Dresden Dresden Germany IoS³ - Institute of Smart Systems and Services Pforzheim University Pforzheim Germany Retired Process Engineering & Automation The Dow Chemical Company Stade Germany Dept. Global Consulting HIMA Paul Hildebrandt GmbH Brühl Germany R. D. & Product Management HIMA Paul Hildebrandt GmbH Brühl Germany Control Systems Technology BASF SE Ludwigshafen Germany Engineering Services Merck KGaA Darmstadt Germany Retired Electrical Engineering for Process Automation Endress+Hauser Germany Automation and Robotics Merck KGaA Darmstadt Germany

ISBN: (数字)9781728189567

ISBN: (纸本)9781728189574

Modular process plants enable the process industry to adapt to volatile and fluctuating markets. The preferred process technology concept for these market scenarios is realized through combining pre-engineered process equipment assemblies (PEA) from different manufacturers with standardized interfaces. While the flexibility gain for this type of plants is high, the design of the safety systems of these modular plants in terms of exchangeability and compatibility is challenging. One solution could be the development of a safety-interface for PEAs to create flexible and scalable safety systems. The principles of modular basic process control are analyzed and requirements with respect to safety design are discussed. The authors provide a differentiation of the intramodular safety concept of a single PEA from the intermodular safety concept of a complete modular plant. A concept for safe and modular interaction of PEAs in a modular plant is developed and additionally validated on a basic demonstrator. Finally, from these findings, standardization requirements are provided and aspects for further research are pointed out.

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Carbon Wrapped Rutile TiO2 Nanoparticles for Dinitrogen Electroreduction to Ammonia at Ambient Conditions

Carbon Wrapped Rutile TiO2 Nanoparticles for Dinitrogen Elec...

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中国化学会2019能源材料和缺陷化学研讨会

作者： Xiaoyang Cui Xiao-meng Liu Shao-xin Wei Yi-ming Cui Ling Zhang Qiang Zhang Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology Department of Chemical Engineering Tsinghua University State Key Laboratory of Control and Simulation of Power Systems and Generation Equipments Department of Electrical Engineering Tsinghua University

Catalytic conversion of dinitrogen（N） into ammonia under ambient conditions represents one of the Holy Grails in sustainable chemistry. As a potential alternative to the Haber-Bosch process, electroreduction of N to NH is attractive owing to its renewability, sustainability and flexibility. However, electrocatalysts with high catalytic activity and high selectivity are rare because of the kinetically complex and energetically challenging N reduction reaction（NRR） process. In particular, the competing hydrogen evolution reaction（HER） is crucial for the low selectivity.

关键词： TiO Carbon Wrapped Rutile TiO2 Nanoparticles for Dinitrogen Electroreduction to Ammonia at Ambient Conditions

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A parallel tonotopically arranged thalamocortical circuit for sound processing

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Neuron 2025年第12期113卷 1998-2013.e6页

作者： Zhao, Zhikai Tang, Xiaojing Chen, Yiheng Tao, Jie Polat, Mahiber Yang, Zhiqi Yang, Linhan Wang, Meng Liang, Shanshan Zhang, Kuan Zhang, Yun Zhang, Chunqing Wang, Lina Wang, Yanjiang Konnerth, Arthur Jia, Hongbo Xiong, Wei Liao, Xiang Li, Sunny C. Chen, Xiaowei Center for Neurointelligence School of Medicine Chongqing University Chongqing 400044 China Brain Research Center and State Key Laboratory of Trauma and Chemical Poisoning Third Military Medical University Chongqing 400038 China LFC Laboratory and Chongqing Institute for Brain and Intelligence Guangyang Bay Laboratory Chongqing 400064 China Advanced Institute for Brain and Intelligence School of Medicine Guangxi University Nanning 530004 China Institute of Brain and Intelligence Third Military Medical University Chongqing 400038 China LFC Laboratory and State Key Laboratory of Science and Technology on Aerospace Intelligence Control Beijing Aerospace Automatic Control Institute Beijing 100854 China Institute of Neuroscience and Munich Cluster for Systems Neurology Technical University Munich Munich 80802 Germany Leibniz Institute for Neurobiology Magdeburg 39118 Germany Brain Research Instrument Innovation Center Suzhou Institute of Biomedical Engineering and Technology Chinese Academy of Sciences Suzhou 215163 China Chinese Institute for Brain Research Beijing 102206 China NewLight Neuroscience Unit Chongqing 400064 China

The perception of the sensory world in mammals requires information flow from the thalamus to the cortex. Although the first-order sensory thalamus and its surrounding nuclei are considered the major hub for feedforward thalamocortical transmission, it remains unknown whether any other thalamic input could also contribute to this transmission. We found a thalamic region, the basal region of the ventromedial nucleus of the thalamus (bVM), that sends dense, tonotopically arranged projections to auditory cortex (AuC) fields. Silencing these AuC-projecting neurons severely impaired the mouse's ability to discriminate sound frequencies. These projections exhibited strong frequency-tuning preferences that matched the cortical tonotopic map. Moreover, bVM inputs were excitatory and primarily terminated on neuron-derived neurotrophic factor-positive interneurons in cortical layer 1. Silencing these inputs significantly reduced sound-evoked responses of AuC neurons. Our results reveal a non-canonical, tonotopically arranged thalamic input to cortical layer 1 that contributes to sound processing, in parallel to the classic auditory thalamocortical pathway. © 2025 Elsevier Inc.

关键词： auditory cortex cortical layer 1 sound processing thalamocortical pathway thalamus

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From aquatic biota to autogenous N-doping biochar—using a highly efficient nonradical dominant process for sulfamethoxazole degradation

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Journal of Cleaner Production 2022年 373卷

作者： Wu Xia Biao Song Huan Yi Eydhah Almatrafi Yang Yang Yukui Fu Xiuqing Huo Fanzhi Qin Ling Xiang Yuxi Zeng Guangming Zeng Chengyun Zhou College of Environmental Science and Engineering Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University) Ministry of Education Changsha 410082 PR China Center of Research Excellence in Renewable Energy and Power Systems Center of Excellence in Desalination Technology Department of Mechanical Engineering Faculty of Engineering-Rabigh King Abdulaziz University Jeddah 21589 Saudi Arabia Department of Chemical and Materials Engineering University of Alberta Edmonton Alberta T6G 1H9 Canada

Biochar has been considered as a promising environmental-friendly catalyst to activate peroxydisulfate (PDS) for contaminant degradation. In this study, a series of autogenous N-rich biochar derived from Spirulina were prepared by K 2 CO 3 impregnation (NPSBs). The pyrolysis temperature and the rational design of morphology by K 2 CO 3 had a significant influence on the performance of NPSBs to activate PDS. The NPSB-700 was capable of degrading 97.59% sulfamethoxazole (SMX) within 40 min because of the high surface area, high defect degree, and good electrical conductivity . The accelerated electron transfer and the generation of 1 O 2 were elucidated to be the dominant pathways for SMX degradation. It has been proven that this is a process of reducing toxicity. Furthermore, NPSB-700 also showed excellent degradation performance to various pollutants. This study provides a facile modification strategy of Spirulina -based catalysts and deepens the comprehension of persulfate activation via nonradical oxidation .

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Biochar production, activation, and applications: A comprehensive technical review

Carbon Capture Science & Technology

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Carbon Capture Science & Technology 2025年 16卷

作者： Lisa Mingzhe Sun Sean R. McIntyre Paul Iacomi Katie Everden Paul T. Williams Shuang Zong Xinying Liu Xiefei Zhu Yanke Yang Shuangjun Li Gang Wu Fei Huang Lina Liu Xiangzhou Yuan Huiyan Zhang Junjie Zhang Haiping Yang Wei Chen Hongman Sun Yang Cao Chunfei Wu Surface Measurement Systems Ltd. Alperton London HA0 4PE UK School of Chemical and Process Engineering University of Leeds Leeds LS2 9JT UK Institute for Catalysis and Energy Solutions University of South Africa Private Bag X6 FL Roodepoort 1709 South Africa Hebei Chemical & Pharmaceutical College No. 88 Fangxing Road Shijiazhuang Hebei Province China Sun Yat-sen University School of Advanced Energy Shenzhen Campus of Sun Yat-sen University No.66 Gongchang Road Guangming District Shenzhen Guangdong 518107 China Department of Chemical and Biological Engineering Korea University 145 Anam-ro Seongbuk-gu Seoul 02841 Republic of Korea Ministry of Education of Key Laboratory of Energy Thermal Conversion and Control School of Energy and Environment Southeast University Nanjing 210096 China Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria College of Environmental Science and Engineering Nankai University Tianjin 300350 China State Key Laboratory of Coal Combustion Huazhong University of Science and Technology Wuhan 430074 China College of Engineering Nanjing Agricultural University No. 40 Dianjiangtai Road Nanjing Jiangsu Province 210031 China State Key Laboratory of Heavy Oil Processing College of Chemistry and Chemical Engineering China University of Petroleum Qingdao 266580 China School of Chemistry and Chemical Engineering Queen's University Belfast Belfast BT7 1NN UK

Our planet has been facing critical challenges since the late 20th century, including climate change, resource shortages, environmental degradation and pollution, demanding urgent and sustainable solutions. Biochar, a carbon-rich material produced via biomass pyrolysis, has gained attention for its great potentials in environmental remediation, pollutant removals, carbon neutrality, soil amendment, building materials, and etc. The performance of biochar in these applications is closely linked to its physicochemical properties, which are influenced by the feedstock and the preparation/activation methods. This paper reviews a wide range of biochar produced from various feedstocks, and the associated performance in different applications. Advanced characterisations are discussed to unveil the fundamental mechanisms and provide insights for further improvement and optimization. The techno-economic analysis evaluates the feasibility, challenges, and opportunities for scaling up and adopting biochar in potential applications. By focusing on biochar's multifunctionality and sustainability, this paper provides a reference for future research on developing biochar as a green technology with environmental and economic benefits.

关键词： Biochar production Biochar characterisation Carbon neutrality Environmental remediation, Soil amendments Pollutant removal Techno-economic analysis

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ZIF-8 confined carbon dots/bilirubin oxidase on microalgal cells to boost oxygen reduction reaction in photo-biocatalytic fuel cells for pollutants removal

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Chinese chemical Letters 2024年

作者： Sili Qing Xuanzhao Lu Yujing Jiang Charitha Thambiliyagodage Bing Song Ao Xia Jian-Rong Zhang Wenlei Zhu Li-Ping Jiang Xiaoge Wu Jun-Jie Zhu State Key Laboratory of Analytical Chemistry for Life Science School of Chemistry and Chemical Engineering Nanjing University Nanjing 210023 China State Key Laboratory of Pollution Control and Resource Reuse School of the Environment the Frontiers Science Center for Critical Earth Material Cycling Nanjing University Nanjing 210023 China Faculty of Humanities and Sciences Sri Lanka Institute of Information Technology Malabe Sri Lanka Scion Te Papa Tipu Innovation Park 49 Sala Street Private Bag 3020 Rotorua 3046 New Zealand Key Laboratory of Low-grade Energy Utilization Technologies and Systems Chongqing University Ministry of Education Chongqing 400044 China Institute of Engineering Thermophysics School of Energy and Power Engineering Chongqing University Chongqing 400044 China Environment Science and Engineering College Yangzhou University Yangzhou 225009 China

Photocatalytic fuel cells provide promising opportunities for sustainable wastewater treatment and energy conversion. However, their applications are challenged by the sluggish oxygen reducton reaction (ORR) kinetics at cathodes owning to the low O 2 solubility and diffusion rate. Herein, we proposed a photo-biocatalytic fuel cell (PBFC) with a novel hybrid biocathode based on artificially engineered algal cells coated by ZIF-8 confined carbon dots/bilirubin oxidase (ZIF-8/CDs/BOD@algae). Microalgae absorbed CO 2 and provided O 2 in situ for BOD catalysts. Due to effective absorption of O 2 by imidazole and confinement of hydrophobic porous ZIF-8, oxygen diffusion has been accelerated in MOF/enzyme systems. Importantly, the introduction of CDs alleviated the poor conductivity of ZIF-8 and improved the electron transfer rate of BOD. Thus, the biocathode exhibited a high current density of 1,767 μA/cm 2 , a 2.26-fold increase compared with that of CDs/BOD/algae biocathode. Also, it displayed enduring operational stability for up to 60 h since the firmly wrapped ZIF-8 shells could encapsulate proteins and protect algae from the external stimulation. When coupled with Mo:BiVO 4 photoanodes, the PBFC exhibited a remarkable power output of 131.8 μW/cm 2 using tetracycline hydrochloride (TCH) as a fuel and an increased degradation rate of TCH. Therefore, this work not only establishs an effective confinement strategy for enzyme to enrich oxygen, but also unveils new possibilities for modified microalgal cells aiding photoelectrocatalytic systems to recover energy from wastewater treatment.

关键词： Microalgal cells ZIF-8 Carbon dots ORR Photo-biocatalytic fuel cell Degradation

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