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Information Systems and computing technology (ISCTech), International conference on

作者： Bo Xu Jianfu Cao Feng Chen Yan Huo Department of Control Science and Engineering Xi’an JiaoTong University Xi’an China China Shipbuilding Industry Corporation Zongheng Technology Co. Ltd Yichang China Department of R&D Shaanxi Chengsheng Electronic Technology Co. Ltd Xi’an China

ISBN: (数字)9798350379860

ISBN: (纸本)9798350379877

With the development of intelligent manufacturing in the context of Industry 4.0, more and more data from industrial sites is urgently required to be collected and analyzed accordingly. However, faced with multiple heterogeneous devices and different types of on-site systems, factors such as diverse protocol types, large data volumes, and tight on-site debugging time have caused difficulties in obtaining data from industrial equipment. This article proposes a universal framework for data acquisition of industrial field equipment and systems, and designs a flexible and configurable method for data acquisition based on this framework. To achieve this method, a data acquisition tool called digital Acquisition Tool(dATool) has been designed and developed. Finally, this article established a simulation experimental environment and implemented data acquisition and processing on devices within Modbus protocols. The experiment proves that this method is convenient and effective in data acquisition.

关键词： Industries computers Protocols data acquisition debugging Fourth Industrial revolution Information systems Edge computing

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Influence of Steam and Sulfide on High Temperature Selective Catalytic reduction

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Fluid dynamics & Materials Processing 2020年第3期16卷 615-621页

作者： Jiyuan Zhang Linbo Wang Chengqiang Zhang Shuzhan Bai R&D Center Weichai Power Co.Ltd.Weifang261041China School of Energy and Power Engineering Shandong UniversityJinan250061China

The influences of steam and sulfide on the efficiency of NOx reduction using ammonia(NH_(3))over the nanometer-class V-W/Ti catalyst in conditions of high temperature is experimentally investigated using a steady-flow *** results showed that selective catalytic reduction(SCr)is inhibited by H_(2)O at low temperature,but higher NO conversion efficiency is achieved at high temperature since the reaction of NH_(3) oxidized by O_(2) to NOx is inhibited by H_(2)*** activity of SCr is promoted by SO_(2) in the temperature range of 200~500℃,the NO conversion efficiency was improved to 98%from 94%by adding SO_(2).SCr would be improved at 350~500℃ when H_(2)O and SO_(2) exist at the same ***,the positive influence to the NOx conversion was proved in the presence of H_(2)O and SO_(2) as a result of the European Stationary Cycle test.

关键词： High temperature selective catalytic reduction efficiency

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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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International conference on Electronics, Information and communications (ICEIC)

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

ISBN: (数字)9798331510756

ISBN: (纸本)9798331510763

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,

关键词： deep learning Filters Artificial neural networks Performance gain complexity theory Hardware acceleration

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Transverse vibration characteristics of rectangular thin plates with moving point supports 33rd

Transverse vibration characteristics of rectangular thin pla...

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33rd International Ocean and Polar engineering conference, ISOPE 2023

作者： Zeng, Yang Shi, Zifeng Song, Junjie Yin, Caiyu Liu, Jingxi School of Naval Architecture and Ocean Engineering Huazhong University of Science and Technology Wuhan China Hubei Key Laboratory of Naval Architecture and Ocean Hydrodynamics Wuhan China Yichang Testing Technique R&D Institute YiChang China Wuhan Marine Machinery Plant Co. Ltd. Wuhan China

ISBN: (纸本)9781880653807

In this paper, based on rayleigh-ritz theory, the transverse vibration characteristics of rectangular plates with point supports at different positions are studied. Based on Hamilton energy principle and combined with the constraints of boundary and point support, the lateral vibration equation of rectangular plate considering point support is established, and the free vibration frequency and mode of rectangular plate are solved. The effectiveness and reliability of the proposed method are verified by comparing the calculated results with literature and finite results. Finally, the vibration characteristics of rectangular plates with different length-width ratios at different support positions are analyzed. The analysis shows that the change of support positions has a significant effect on the vibration frequency of rectangular plates. © 2023 by the International Society of Offshore and Polar Engineers (ISOPE).

关键词： rectangular plate

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Overload Capability design of MEMS Polycrystalline Silicon Nano-diaphragm Pressure Sensors

Overload Capability Design of MEMS Polycrystalline Silicon N...

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Mechatronics technology and Intelligent Manufacturing (ICMTIM), International conference on

作者： Fumin Xiong Yuxin Xi Zhangbin Feng School of Information and Engineering Shenyang University of Chemical Technology Shenyang China School of Computer Science and Engineering Guangzhou Institute of Science and Technology Guangzhou China Department of Non Refrigeration R&D Optics Technology Holding Co. Ltd Chuzhou China

ISBN: (数字)9798350363265

ISBN: (纸本)9798350363272

The pressure-sensing diaphragms of micro-electromechanical systems (MEMS) pressure sensors are prone to fracture under high pressure and eventually result in sensor performance failure. To address this issue, a technique is proposed in this study that can improve the overload capacity of MEMS polycrystalline silicon nano-diaphragm pressure sensors. A polycrystalline silicon diaphragm with a thickness of 80 nm is utilized for constructing the pressure-sensing diaphragm structure. Furthermore, the cavity height of the membrane for bottoming protection is analyzed using the static large deformation and contact nonlinear finite element analysis methods. Accordingly, the association of diaphragm sizes with sensor overload capacity is deduced, and the influence of diaphragm size variation on the overload capacity under different sensor ranges is discussed. The simulation results reveal that the MEMS polycrystalline silicon nanomembrane pressure sensor designed for a 1 MPa range exhibits an overload capacity of 8 MPa, which is eight times the sensor range. This study provides novel ideas that can contribute to the preparation of MEMS pressure sensors in real-time production.

关键词： Micromechanical devices Pressure sensors Sensitivity Simulation Production Silicon real-time systems

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development of Cloud Service Platform for Suspension durability Testing System

Development of Cloud Service Platform for Suspension Durabil...

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Chinese Automation congress (CAC)

作者： Bin Zhao Jianyu Zhao Xudong Wang School of Control Science &Engineering University of Jinan Jinan China R&D department DOCER Testing Technology Co. Ltd Jinan China

The suspension durability testing system can complete fatigue life testing and the simulation of the real-world working condition of automotive air suspension in the laboratory. However, due to its self-enclosed architecture, it usually does not have functions such as remote interaction and unified data management. To address the above issues, we propose an industrial cloud service platform for the testing system in this paper. Specifically, by analyzing the principles of the testing system and the requirements of the cloud service platform, we rigorously design the data forms and functions on the cloud platform. Moreover, our designed platform completes the data communication between the end layer, edge layer, and application layer based on the ThinkPHP framework and the TCP Socket communication protocol. Thus, it is possible to realize the management of the user information and the transmission, storage, and remote display of the testing data, making our platform capable of remote monitoring. We implement our platform as a fully-functional software. The testing results indicate that the developed cloud service platform of the suspension durability testing system can accurately monitor the testing system in real-time and standardize the management of testing data.

关键词：

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Terahertz Tomography for Non-destructive Testing of Objects with random Surfaces

Terahertz Tomography for Non-Destructive Testing of Objects ...

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International conference on Infrared and Millimeter Waves

作者： Kun Meng Liguo Zhu Zeren Li Hu Liu Yao Xu Hongzhang Chen R&D Center Qingdao Quenda Terahertz Technology Co. Ltd. Qingdao China Institute of Fluid Physics China Academy of Engineering Physics Mianyang China College of Engineering Physics Shenzhen Technology University Shenzhen China

ISBN: (数字)9798350370324

ISBN: (纸本)9798350370331

Terahertz tomography based on time-of-flight imaging is a promising technology for non-destructive testing of composite material. Vertical incidence is necessary for this terahertz technique, making it difficult to serve for the real life application, since kinds of curved surfaces are frequently met. combining robot arm and terahertz system is a practical solution, and in this paper, some efforts to improve the efficiency of measurement, accuracy of result, and representation of three-dimensional imaging are introduced. The efforts on research and development of terahertz non-destructive testing will promote it entry into our real life and solve practical application problems.

关键词： Terahertz wave imaging Accuracy Surface waves composite materials Tomography Manipulators research and development Testing

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research on the Structural Mechanical response of Wind Turbine Blade Subcomponent Under Torsional Load

SSRN

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SSrN 2024年

作者： Li, Chengliang Zhang, Leian Wang, Jihui Zhang, denggang Guo, Wenzhe R&D Center Sinoma Wind Power Blade Co. Ltd China School of Mechanical Engineering Shandong University of Technology Zibo255049 China School of Materials Science and Engineering Wuhan University of Technology Wuhan430070 China

In this study, we analyze the structural mechanical behavior of the central airfoil section (50m-75m) of an 85.8-meter large wind turbine blade under pure torsional loads. Initially, a numerical model tailored for torsional stress analysis is developed using a hybrid shell-solid element approach. Subsequently, we propose a torsional testing methodology for subcomponents tailored to real-world operating conditions and design a specialized loading apparatus for field testing. Through the integration of numerical simulations and field test data, we observe that the subcomponent's response to pure torsional loading exhibits a multidimensional nonlinear behavior. Notably, the main beam and the trailing edge are critical in withstanding the torsional forces. The analysis reveals that the global strains on the pressure side (PS) and suction side (SS) are antithetical, with the SS demonstrating significant resistance to torsional stresses. The torsional loads are eventually manifested as chordal tensile and compressive forces that alternate along the subcomponent's span. Furthermore, by incorporating progressive failure theory into our numerical model, we detect surface deformations in the core plate at the root when the tip experiences torsional loads. This response propagates to the full-scale blade, leading to localized buckling in the transition region at the root, which precipitates adhesive delamination and ultimately compromises the structural integrity. © 2024, The Authors. All rights reserved.

关键词： Numerical models

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Analysis,Prediction and Process Optimization concerning Ammonium Chloride corrosion in Ebullated-Bed Hydrogenation Unit for Treating residual Oil

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China Petroleum Processing & Petrochemical technology 2020年第4期22卷 108-116页

作者： Bao Zhenyu Wang Ning Zhang Hongfei duan Yongfeng Yu Fengchang R&D Center of Luoyang Technology SINOPEC Engineering(Group)Co.LTD.Luoyang 471003

Ammonium chloride corrosion in the reactor effluent system remains to be a barrier for the safe operation of the ebullated-bed hydrogenation unit as impurity content is higher compared with that of the ordinary hydrogenation *** this research,a Sinopec envisaged case study was conducted on feed oil containing 2.92μg/g of Cl and 0.38%of N,because the impurity content of feed oil was representative in residue *** deposition patterns in heat exchangers were investigated by changing process variables,and then water wash strategy was optimized in view of the relative humidity to obtain a minimum water flowrate,and finally the process optimization suggestions concerning the operation of heat exchangers were *** show that with the measured content of nitrogen and chlorine in the feed,the NH4Cl deposition temperature of hot high-pressure vapor and hot low-pressure vapor was 223.4℃ and 173.7℃,respectively,and the minimum water wash flowrate for heat exchangers of hot high-pressure vapor with mixed hydrogen and hot low-pressure vapor with cold low-pressure oil was 38.0 t/h and 5.4 t/h,*** wash should be carried out intermittently upstream of the heat exchanger tube *** consideration of energy consumption,it is recommended to reduce the tube pass outlet temperature of the above heat exchangers to 240℃ and 190℃,respectively.

关键词： ebullated-bed hydrogenation corrosion ammonium salt water wash deposition temperature

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Oxide Channel Ferroelectric NANd device with Source-Tied covering Metal Structure: Wide Memory Window (14.3 V), reliable retention (> 10 Years) and disturbance Immunity $(\delta \mathrm{V}_{\text{th}}\leq 0.1\mathrm{V})$ for QLC Operation

Oxide Channel Ferroelectric NAND Device with Source-Tied Cov...

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International Electron devices Meeting (IEdM)

作者： Hongrae Joh Giuk Kim Jihye Ock Seungyeob Kim Sangmok Lee Sangho Lee Kwangsoo Kim Suhwan Lim Jongho Woo Wanki Kim daewon Ha Jinho Ahn Sanghun Jeon School of Electrical Engineering Korea Advanced Institute of Science and Technology (KAIST) Korea Semiconductor R&D Center Samsung Electronics Co. Ltd Korea Division of Materials Science and Engineering Hanyang University Korea

ISBN: (数字)9798350365429

ISBN: (纸本)9798350365436

We show an oxide-channel (Ox. Ch.) based gate-injection type ferroelectric NANd (FeNANd) device with source-tied covering metal (SCM) and control dielectric (***). The SCM and *** play crucial roles in the performance enhancement of FeNANd cells. (i) The proposed structure addresses the channel depletion issue of ***. by utilizing accumulated holes in the grounded SCM during ErS. This increases the electric field across the gate interlayer and FE layer, thereby boosting ErS efficiency. (ii) The read operation of erase states distributes a significant portion of the read voltage to ***, intensifying the $\mathrm{V}_{\text{th},\text{ErS}}$ . These effects result in a wide memory window (MW~14.3V). Furthermore, the introduction of a $\text{Si}_r\mathrm{N}_co$ deep trap-level layer and careful gate stack design led to superior retention (MW:11.5V after 10 years) and disturbance immunity ( $\delta \mathrm{V}_{\text{th}} < 0.1\mathrm{V}$ after $10^r$ disturb cycles). We also verify the roles of SCM and *** through analytical modeling. Lastly, the proposed structure is compatible with current 3d-NANd fabrication, offering equivalent channel hole pitch and density.

关键词： Analytical models Three-dimensional displays distributed databases Switches Logic gates Immunity testing Iron Time measurement dielectrics Time factors

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