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Hierarchical ZnIn2S4 microspheres as photocatalyst for boosting the selective biohydrogenation of furfural into furfuryl alcohol under visible light irradiation

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Green Chemical engineering 2022年第4期3卷 385-394页

作者： Hongqing Zhao Qian Zhu Yan Zhuang Peng Zhan Yanou Qi Wenqiang ren Zhihao Si di Cai Senshen Yu Peiyong Qin National Energy R&D Center for Biorefinery Beijing University of Chemical TechnologyBeijing100029China School of International Education Beijing University of Chemical TechnologyBeijing100029China Research Center for Eco-environmental Sciences Chinese Academy of ScienceBeijing100085China R&D Center Yunnan Yuntianhua Co.Ltd.No.1417th Dianchi Road650000KunmingChina College of Life Science and Technology Beijing University of Chemical TechnologyBeijing100029China

Photocatalyst-enzyme coupling process for visible light driven biotransformation holds promise in producing solar *** this work,aiming to produce furfuryl alcohol,the important bulk chemical that is typically derived from renewable lignocellulose,a highly selective furfural hydrogenation process is proposed by coordinating the alcohol dehydrogenase with the ZnIn2S4 assistant reduced form of nicotinamide adenine dinucleotid(NAdH)*** indicated that under visible light irradiation,the hierarchical ZnIn2S4 microspheres exhibited excellent holes and electrons separating efficiency,affording to high NAdH regeneration(yield of 90.2±3.28%).When adopting the photo-biocoupled reduction process in furfural transformation,a furfuryl alcohol yield of 79.4±1.95%was achieved under the optimized *** photocatalyst-enzyme coupling process also showed good stability,exceeding 70%of catalytic activity was reserved after reusing the catalysts for 10 *** novel photo-biocoupled system showed promising in extending to the highly selective hydrogenation of other biochemicals from lignocelluloses.

关键词： NAdH regeneration Photobiocatalysis Furfural Furfuryl alcohol Selective hydrogenation

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Weak magnetic control of PMSM servo system with high bandwidth current loop 6

Weak magnetic control of PMSM servo system with high bandwid...

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6th IEEE Student conference on Electric Machines and Systems, SCEMS 2023

作者： ding, Qianhua Ji, Kehui Wu, Hao Yang, Jingang Zhejiang Sci-Tech University School of Information Science and Engineering Hangzhou China Hangzhou Zhenzhengweidun Motion Control Technology Co. Ltd R&d Department Hangzhou China

ISBN: (纸本)9798350329346

The current sampling and pulse width modulation (PWM) duty cycle update methods currently in use in permanent magnet synchronous machine (PMSM) servo control systems introduce significant delays, thereby impacting the motor's current loop bandwidth and dynamic characteristics to some extent. In addition, when the motor terminal voltage reaches the maximum output voltage of the driver, the motor operating speed cannot continue to increase. In response to these issues, a current loop bandwidth expansion method was proposed by improving the current sampling and PWM update time. This method reduces the delay between current sampling and the PWM duty cycle update by advancing the timing of the PWM duty cycle update, thereby expanding the closed-loop bandwidth of the current loop control system. Building upon a high-bandwidth current loop, a variable q-axis single current regulator weak field control method is employed to enhance the speed of the PMSM further, ensuring stable operation beyond the base speed. The simulation and experimental results demonstrate that the newly designed bandwidth expansion method exhibits a reduced internal delay in the current loop of the AC permanent magnet servo control system compared to the existing sampling methods. Additionally, it offers a broader bandwidth and faster dynamic response. combined with the weak magnetic control method, the control system has good stability, accuracy, and speed when operating above the base speed. © 2023 IEEE.

关键词： Servomechanisms

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Solution of Power Equipment condition Monitoring System Based on Things Oriented Architecture

Solution of Power Equipment Condition Monitoring System Base...

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2023 International conference on Power System technology, Powercon 2023

作者： Gong, Shimin Zhu, Jin Guodian Nanjing Automation Co. LtD Nanzi Power Grid R&d Center Nanjing China School of Information and Communication Engineering Nanjing Institute of Technology Nanjing China

ISBN: (纸本)9798350300222

From the perspective of power equipment operation and maintenance management, this paper summarizes the limitations of traditional Pd monitoring, maintenance and operation, breaks through the traditional implementation methods, applies the advanced technology of ubiquitous Internet of things, and comprehensively considers the design from the aspects of acquisition mode, transmission means, diagnosis method and active decision feedback, puts forward a new monitoring system solution, and introduces the components of the monitoring system Some key technologies and implementation principles are introduced, and the typical engineering application implementation scheme is given. The results show that the operation and maintenance efficiency and management level of electrical equipment can be greatly improved through the application of new technology, and lay a data foundation for the next step of artificial intelligence and big data application mining. © 2023 IEEE.

关键词： condition monitoring

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design and Simulation of Hinge-type ro-ro (roll-on/roll-off) Ship Car deck Structure 33rd

Design and Simulation of Hinge-type Ro-Ro (Roll-on/Roll-off)...

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33rd International Ocean and Polar engineering conference, ISOPE 2023

作者： Kim, Hyun Soo Cho, Min Goo Kang, Sung Wook Kim, Jae Woong Pyo, Chang Min Ji, Chang Wook Park, Jang Ik Precision Mechanical Process and Control R&D Group Korea Institute of Industrial Technology Gyeongsangnam-do Jinju Korea Republic of Automotive Materials & Components R&D Group Korea Institute of Industrial Technology Gwangju Korea Republic of Advanced Forming Process R&D Group Korea Institute of Industrial Technology Ulsan Korea Republic of Research center Dae Lyun Engineering Co. Ltd. Busan Korea Republic of

ISBN: (纸本)9781880653807

ro-ro ships can roll-on or roll-off cargo with self-driving power such as passenger cars and trucks, and container cargo on transport devices such as trucks or trailers on a ramp. The representative types of ro-ro ships are PCC (Pure Car Carrier) and PTCT (Pure Car & Truck Carrier). ro-ro ship is configured to load as many cargoes as possible by dividing the cargo hold into multiple card decks up and down. It is necessary to adjust the height of the car deck according to the type of vehicle being loaded. For this purpose, a number of fillers are installed on the inner deck of the ro-ro ship. In other words, to load high cargo such as heavy equipment on the car deck, the height between the decks must be high. At this time, the liftable car deck is adjusted using the deck lifter installed on the pillar. Existing liftable car deck structures are made of a single large plate, so it takes a lot of time and money to install and dismantle them. In this study, a hinge-type liftable car deck was designed. In addition, the overall structural integrity including the hinge was evaluated through structural analysis in accordance with the classification regulations. © 2023 by the International Society of Offshore and Polar Engineers (ISOPE).

关键词： Arctic engineering

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One Case of THOUGHT: Industry-University converged Education Practice on Open Source 17th

One Case of THOUGHT: Industry-University Converged Education...

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17th International conference on computer Science and Education, ICCSE 2022

作者： Yu, Zhiyi Li, Chao Hu, Chaochen Chen, Zhen Yao, Yandong Wu, Jiang Wang, Hao du, Jialun Guo, Min Wang, Haoyu Li, Weimin Li, Xiu Ma, Xiaodong Zhangi, Yisong Li, Shuangshou Information Engineering Beijing University of Posts and Telecommunication Beijing China Department of Computer Science and Technology Tsinghua University Beijing China BNRist Tsinghua University Beijing China iCenter Tsinghua University Beijing China R&D yMatrix Inc. Beijing China R&D ***. Beijing China R&D Co. Ltd. Beijing2861 China

ISBN: (纸本)9789819924486

Nowadays, more and more data are produced in our life. The rapid development of big data and intelligent computing industry has put forward new demands for talents, while colleges and universities with limited industry experiences are striving to promote the talent cultivation. Therefore, the "Innovative community of Industry-Education convergence", named THOUGHT (innovaTive Hub for the co-development of indUstry and hiGHer educaTion) [1], was founded in 2019. THOUGHT aims to improve education cooperation between teaching staff and industry professionals in the related field. The industry-university converged courses are different from technical trainings in enterprises or the speeches of the leaders. In order to cultivate talents, both sides of industry and education cooperate closely in nearly every aspects in course building, e.g., targets, contents, methods, and assessments. And it is necessary to make the courses systematic for learners in terms of knowledge transmission, ability training and value shaping, so as to make them more competent for challenging work in the future of big data and AI. The industry-university converged courses focus on breaking the barrier of the traditional campus. compared with the emphasis on theories and ideal experiments of traditional campus, it focuses more on practices and applications. Therefore, it needs to rely on a bridge which is convenient for both sides to participate in. compared with traditional tools of business platforms, open source platforms are better choices. And open source makes it easier for more learners to stand on the giants’ shoulders. This paper shares the experience of a case of THOUGHT: the industry-university converged course "Foundamentals and Application of distributed data System" jointly built by Tsinghua University and Greenplum open source community. The target, team, organization, structure and contents, practice project, and future work of this course are all introduced in this paper, which may

关键词： Big data

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An Optimization Method for LdO design Based on ANN Algorithm 6

An Optimization Method for LDO Design Based on ANN Algorithm

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6th IEEE International conference on Electronic Information and communication technology, ICEICT 2023

作者： Xu, Qing He, Ying Lai, Guangsheng Wang, Qingzhou Sun, Yanhui Jia, Qingjia Li, Yuanyue Chen, rui Yao, Zhao Information Technology Co. Ltd Qingdao China College of Electronics and Information Qingdao University Qingdao China College of Engineering Chengdu College of University of Electronic Science and Technology Chengdu China Qingdao Zhancheng Technology Co. Ltd Eda R&d Department Qingdao China Qingdao Zhancheng Technology Co. Ltd Engineering Department Qingdao China

ISBN: (纸本)9798350399059

In order to solve the issues of long design cycles and low efficiency of integrated circuit design., a new method combining ANN algorithm was proposed to improve the comprehensive performance of LdO circuits. In this paper., the device parameters and corresponding performance of the LdO circuit were collected as a dataset to train the ANN model. When given the specific target performance of the LdO circuit., the model can predict the optimal device parameters corresponding to the performance., achieving the synchronous improvement of the four key parameters of PM, UGBW., PSrr., and IQ. The results show that the r2 of the ANN model can be as high as 0.982. Therefore., the proposed method in this paper can effectively accelerate the design of LdO and improve its comprehensive performance. © 2023 IEEE.

关键词： Neural networks

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Accelerating deep Neural Networks with a Low-cost Lossless compression

Accelerating Deep Neural Networks with a Low-Cost Lossless C...

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2025 International conference on Electronics, Information, and communication, ICEIC 2025

作者： Kim, Seongwook Byeon, Gwangeun Lee, Seungeui Bae, Youngseok Hong, Seokin Sungkyunkwan University Department of Electrical and Computer Engineering Suwon Korea Republic of Advanced R&D Center Hanwha Systems Co. Ltd. Korea Republic of Agency for Defense Development Emerging Science and Technology Directorate Korea Republic of

ISBN: (纸本)9798331510756

Since deep learning inference involves a significant amount of computations, there have been a lot of efforts to accelerate the inference process by eliminating ineffectual compu-tations. As a solution to this problem, several sparsity-aware deep learning accelerators have been proposed. These accelerators perform the inference on compressed data (filters and feature maps) and dynamically remove the ineffectual multiplications with zero operands. For efficiently handling the compressed data on the accelerators, a simple and effective compression scheme, which encodes the whole data with its nonzero values and their positions, is necessary. However, prior approaches have several shortcomings, such as low compression efficiency and high complexity in compression and decompression hardware. This paper proposes a low-cost compression scheme that can be applied to sparsity-aware deep-learning accelerators. The compression scheme synergistically combines two low-cost compression schemes: Zero-Value compression (ZVC) and Base-delta-Immediate compression (BdI). Our experimental evaluation shows that the proposed compression scheme achieves an average compression ratio of 2.26, resulting in 2.33x performance improvement, © 2025 IEEE.

关键词： data handling

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Tuning redox activity through delithiation induced protective layer and Fe-O coordination for Li-rich cathode with improved voltage and cycle performance

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Journal of Energy Chemistry 2022年第8期31卷 266-276,I0008页

作者： Kanghui Hu Li ren Weifeng Fan Bing Zhang Meihua Zuo Yanhui Zhang Genpin Lv Huiyuan Xu Wei Xiang Xiaodong Guo College of Materials and Chemistry&Chemical Engineering Chengdu University of TechnologyChengdu 610059SichuanChina Yibin Libode New Materials Co. Ltd.Yibin 644200SichuanChina Shaoguan HEC Technology R&D Co. Ltd.Ruyuan 512000GuangdongChina Yibin Tianyuan Grp Co. Ltd.Yibin 644200SichuanChina School of Chemical Engineering Sichuan UniversityChengdu 610065SichuanChina

Li-rich layered transition metal oxides are one of the most promising cathode materials for their high energy ***,the cathodes usually suffer from severe potential dropping and capacity fading during cycling,which are associated with the surface oxygen release and accompanied by cation densification and structural ***,an integrative approach of simultaneous constructing uniform 3d Fe-ion doping in the transition metal layer and Li-rich Li_(5)FeO_(4) shell to grab the oxygen and prevent interfacial side reactions is *** introduction of Fe induces higher redox potential and stronger 3 d Fe-O_(2)p covalent bond,triggering reversible anionic redox via a reductive coupling *** the delithiated product of Li-rich Li_(5)FeO_(4) not only acts as a protective layer alleviating the side reactions but also enhances the surface kinetic *** the benefit of promoted reversibility of oxygen redox and enhanced surface stability,the cathode exhibits high reversible capacity and superior cycle *** function theory calculation indicates that the O_(2)p non-bonding state in the cathode incorporated with Fe sits at a lower energy band,resulting in higher energy storage voltage and improved oxygen ***,the modified cathode exhibits a discharge specific capacity of 307 m A h g^(-1)(1 C=250 m A g^(-1)),coulombic efficiency of 82.09%in the initial cycle at 0.1 C and 88.34%capacity retention after 100 cycles at 1 *** work illustrates a strategy that could simultaneously enhance oxygen redox reversibility and interface stability by constructing lattice bond coordination and delithiation induced protective layer to develop Li-rich materials with high reversible capacity and long lifespan.

关键词： Li-rich cathode Lattice oxygen evolution Tuning redox activity Interface modification

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Influence of mixing of various fibers on fresh and mechanical properties of ultra high strength concrete and consideration of its evaluation method

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AIJ Journal of technology and design 2021年第66期27卷 592-597页

作者： Li, Xiaohe Takahashi, Yuichi Takeuchi, Hiroyuki Tsurumi, Junya Building Construction Engineering R&D Division Institute of Technology Penta-Ocean Construction Co. Ltd Japan

200 MPa class ultra high strength concrete is easy about brittle fracture and explodes on fire. As their countermeasures, the steel fibers are used to suppress brittle fracture and polypropylene short fibers are used to suppress the explosion in fire. However, the previous studies have reported that the strength of concrete is affected by steel fibers. And the fluidity of concrete is reduced by polypropylene short fibers. In this report, the influence of steel fibers, polypropylene short fibers and their combination on the fresh and mechanical properties of 200 MPa class concrete is introduced. © 2021 Architectural Institute of Japan. All rights reserved.

关键词： Polypropylenes

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Numerical analysis of seismic response of rectangular underground structure in coral sand

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Underground Space 2023年第2期9卷 155-172页

作者： Qi Wu Xuanming ding Yanling Zhang Yanli Zhang Institute for Smart City of Chongqing University in Liyang Chongqing UniversityLiyang 213300China School of Resources and Safety Engineering Chongqing UniversityChongqing 400044China Key Laboratory of New Technology for Construction of Cities in Mountain Area Chongqing UniversityChongqing 400045China School of Civil Engineering Chongqing UniversityChongqing 400045China College of Civil Engineering Taiyuan University of TechnologyTaiyuan 030024China Technology R&D Center Shandong Construction Exploration Group Co.Ltd.Jinan 250031China

The underground structure in coral sand is threatened by *** special dynamic characteristics of coral sand were realized by finite difference ***,the stress–strain loops,shear modulus attenuation and hysteresis behaviour of coral sand were simulated using hysteresis *** this basis,numerical models were established to study the seismic response of the rectangular underground structure in coral sand,and the fluid–solid coupling and soil-structure interaction were *** results illustrate that the increasing relative density of coral sand foundation reduces the excess pore water pressure(EPWP),but amplifies the horizontal dynamic soil pressure of the coral sand-underground structure *** increase in the permeability coefficient of coral sand reduces the EPWP accumulation,which leads to an increase of the stiffness and a decrease of the acceleration amplification of coral sand sites.

关键词： Numerical simulation coral sand Seismic response Underground structure Liquefaction

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