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检索条件"任意字段=Conference on Design and Engineering of Optical Systems II"

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A Power-voltage coordinated control strategy of inverters in low-voltage distribution networks

A Power-voltage coordinated control strategy of inverters in...

引用

2024 International conference on Mechatronics and Intelligent Control, ICMIC 2024

作者： Wei, Yinzhong Mei, Jianchun Zhou, Yalong Su, Jiabin Yan, Anxin Zhou, Zhen China Energy Engineering Group Jiangsu Power Design Institute Co. Ltd. Nanjing211102 China Jiangsu Keneng Electric Power Engineering Consulting Co. Ltd. Nanjing210000 China School of Automation Nanjing University of Science and Technology Nanjing210094 China

ISBN: (数字)9781510686847

ISBN: (纸本)9781510686830

Considering the problem concerning voltage beyond limit caused by the photovoltaic generators in low-voltage distribution network system, a power-voltage coordinated manage method about inverters is offered to deal with voltage beyond limit by photovoltaic generators. This method can give priority to voltage adjustment through reactive power belonging to the PV, if the reactive regulation ability from the PV reaches its limit while the voltage continues to exceed the limit, an active power reduction control based on sparrow search algorithm is further adopted to minimize the waste of photovoltaic active power and avoid voltage beyond limit. The simulation outcomes confirm the potency as well as advantages belonging to the offered method in dealing with the beyond-limits about voltage created by the PV. © 2025 SPIE.

关键词： Photovoltaics Control systems Lithium Solar energy Resistance Automation Mathematical optimization Algorithm development design Safety

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AN APPROACH FOR PREDICTING SOCIAL, ENVIRONMENTAL, AND ECONOMIC PRODUCT IMPACTS AND NAVIGATING THE ASSOCIATED IMPACT TRADE-SPACE IN engineering design

AN APPROACH FOR PREDICTING SOCIAL, ENVIRONMENTAL, AND ECONOM...

引用

ASME International design engineering Technical conferences / Computers and Information in engineering conference (IDETC-CIE) / 49th design Automation conference (DAC)

作者： Mabey, Christopher S. Dickerson, Tevin J. Salmon, John L. Mattson, Christopher A. Brigham Young Univ Provo UT 84602 USA

ISBN: (纸本)9780791887318

There is a growing demand for sustainable products and systems. Sustainability encompasses environmental, social, and economic aspects, often referred to as the three pillars of sustainability. To make more sustainable design decisions, engineers need tools to predict the environmental, social, and economic impacts of products and navigate potential impact trade-offs. To capture societal adoption of technology, this article uses agentbased modeling (ABM) to predict impacts across all three pillars of sustainability and how to navigate the multidimensional impact trade space. The approach described in this article is based on three main components for the predictive modeling of product impacts and impact trade-space navigation, i) ABM of product adoption, ii) the assessment of product impacts, and iii) an approach for design decisions in the presence of impact trade-offs. The trade-space navigation uses a visual approach to find the non-dominated solutions in the product impact space. To illustrate and describe howto use the method, a case study is presented that predicts the impact of residential solar panels in a region of the United States under various scenarios. The findings of the case study can help policymakers understand suitable implementation strategies for residential solar panels while considering the impact trade-offs involved.

关键词： Agent-Based Modeling Life Cycle Sustainability Assessment engineering for Sustainable Development Predictive Social Impact Modeling

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Study on perforating optimization design of simultaneous potential tapping test area for Class ii and iiI oil reservoirs in Sazhong Development Zone of Daqing Oilfield 2

Study on perforating optimization design of simultaneous pot...

引用

2nd International conference on Energy, Power, and Electrical Technology, ICEPET 2023

作者： Wang, Chunyao No.1 Oil Production Company of Daqing Oilfield Company Ltd. Heilongjiang Daqing163001 China

ISBN: (纸本)9781510668270

Class ii and iiI oil reservoirs in the Sazhong Development Zone of Daqing Oilfield are horizontally and vertically alternately distributed, making it difficult to subdivide development. In order to simultaneously tap the potential of Class ii and iiI oil reservoirs and improve the production degree of poorly Class iiI oil reservoirs, this paper takes MN Block in Sazhong Development Zone of Daqing Oilfield as the research object, and forms an economic and effective perforating method for simultaneous development of Class ii and iiI oil reservoirs through optimizing the perforating principles, perforating processes and perforating fluids, providing reference significance for the simultaneous development of Class ii and iiI oil reservoirs in Sazhong Development Zone. © 2023 SPIE.

关键词： Petroleum reservoir engineering

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design and implementation of SiPESC Platform construction process dynamic simulation system

Design and implementation of SiPESC Platform construction pr...

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2023 International conference on Intelligent systems, Communications, and Computer Networks, ISCCN 2023

作者： Chang, Haijun Shen, Mengling Qi, Shuo Zhang, Wenhan Hou, Junxia Wang, Zhanyun Science and Technology on Green Construction Laboratory China Nuclear Industry23 Construction Co. LTD Beijing China

ISBN: (纸本)9781510666238

In view of the dynamic simulation requirements of the construction process, using plug-in, GLSL rendering, key frame animation and collision detection technology, design and development of SiPESC animation editing and rendering engine module, in order to solve the dynamic simulation problems of the construction process, to verify the feasibility of the construction scheme. This paper discusses the design idea, software framework and key technologies of construction process dynamic simulation system. The practical application examples of the software show its practicability in engineering field. © 2023 SPIE. All rights reserved.

关键词： Animation

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design, simulation, and evaluation of a low-cost photometer for dissolved ozone measurement

Design, simulation, and evaluation of a low-cost photometer ...

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IEEE International conference on Microwaves, Communications, Antennas, Biomedical engineering and Electronic systems (COMCAS)

作者： Petani, Lisa Tils, Dominik Wuehrl, Lorenz Sieber, Ingo Pylatiuk, Christian Karlsruhe Inst Technol Inst Automat & Appl Informat Karlsruhe Germany

ISBN: (纸本)9798350348194;9798350348187

The measurement of the dissolved ozone concentration is beneficial in various areas, where ozone is applied, such as medicine, disinfection, food processing, and wastewater treatment. Especially for medical ozone therapy, the measurement directly before and during the treatment is essential to avoid over- and under-dosing. For the wide range application of ozone measurement during medical therapy and in research, low-cost and reproducible measurement devices are indispensable. We present a low-cost photometer that measures the ozone concentration with UV photometry. It consists mainly of 3D-printed parts, while all other parts are commercially available. The root mean squared percentage error of the designed photometer is 14.68% and the root mean squared error is 1.04mg l(-1). We measured concentrations between 0mg l(-1) and 19 mg l(-1), since higher concentrations cannot be produced with the ozone generator used. In principle, however, higher concentrations can also be measured with the photometer, such as the concentrations typical in ozone therapy of up to 30 mgl(-1). We achieve good measurement results with the photometer in comparison with a commercial reference measuring instrument for dissolved ozone, although the reference instrument has a mean square error of 8.2%, but is more expensive by a factor of 17 than the photometer presented here. Low-cost instruments, such as the photometer, provide accurate and inexpensive measurements that are adaptable to a wide range of applications. For example, the photometer can be used in medicine for ozone therapy. The ozone concentration can be measured directly before the injection and thus before the treatment.

关键词： photometer optical sensor dissolved ozone 3D-printer low-cost Raspberry Pi

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design of power transmission and transformation engineering design review system based on spring struts hibernate framework

Design of power transmission and transformation engineering ...

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2023 International conference on Intelligent systems, Communications, and Computer Networks, ISCCN 2023

作者： Qian, Zhang Gaowa, Saren Wei, Jiang Meng, Qiao Getu, Niu Inner Mongolia Power Economy and Technology Research Institute China

ISBN: (纸本)9781510666238

For the current design of power transmission and transformation engineering design review system, there are some problems, such as poor functionality and processing capacity, and long system response time. The design review system of power transmission and Transformation engineering Based on Spring + Struts + Hibernate (SSH) framework is designed. According to the definition and characteristics of SSH framework, this paper puts forward three classical frameworks: Struts, Spring and Hibernate, and integrates SSH framework. Through data cleaning, conversion and standardization, the evaluation data of transmission line engineering are simplified, and the evaluation data of transmission and transformation engineering are clustered by clustering algorithm. Analyze the overall requirements and functional requirements of the system, adopt SSH framework and design the overall system architecture in combination with specific business. Divide the system function structure from the user use type. Through the design of database structure and data table, the design of power transmission and transformation engineering design review system based on SSH framework is realized. The experimental results show that all functional modules of the system designed by the proposed method are in normal state, with an average throughput of 94.8mbps and a response time of only 17.2s. The proposed method has better functionality and processing capacity, and shorter system response time. © 2023 SPIE. All rights reserved.

关键词： Clustering algorithms

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Machine Learning-Based Generative design Optimization of the Energy Efficiency of Florida Single-Family Houses

Machine Learning-Based Generative Design Optimization of the...

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ASCE International conference on Computing in Civil engineering (I3CE)

作者： Elias, Rita Issa, Raja R. A. Univ Florida Rinker Sch Construct Management Gainesville FL 32611 USA Univ Florida Rinker Sch Construct Management Ctr Adv Construct Informat Modeling Gainesville FL 32611 USA

ISBN: (数字)9780784485224

ISBN: (纸本)9780784485224

designers usually assess only a few house design alternatives simulating their energy use, due to time and cost constraints. This study aims at developing a machine learning (ML)-based generative design (GD) framework to automate the design process of Florida's detached residences while optimizing their energy performance. An artificial neural network (ANN) model was developed using the machine learning platform TensorFlow along with some Python-based Keras libraries based on a big dataset of around 17,000 newly constructed detached residences in Florida between the years 2009 and 2021. The GD framework was established using Autodesk Dynamo and Autodesk Revit internal generative design tool that uses the Non-Dominated Sorting Genetic Algorithm (NSGA-ii). The ANN model was created to predict the required capacities of the cooling and heating systems in detached houses considering 10 independent variables relating to the house geometry and its energy performance. The ANN was then integrated within the GD framework for performance evaluation purposes. The findings of this study included a fully automated design of energy-efficient detached houses greatly reducing the financial strain and time consumed by designers/developers using traditional techniques.

关键词： Machine learning

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design of servo DC flash butt welder 2

Design of servo DC flash butt welder

引用

2nd International conference on Advanced Manufacturing Technology and Manufacturing systems, ICAMTMS 2023

作者： Zhang, Shenghe Dong, Shihui Gao, Jiahe Su, Shijie School of Mechanical Engineering Jiangsu University of Science and Technology Zhenjiang China

ISBN: (纸本)9781510667327

Flash butt welding is widely used as an effective welding method in the fields of a ship and marine engineering, transportation, oil drilling, and the metallurgical industry. The current flash butt welding machine basically has a large energy consumption, welding process instability, etc. To solve the above problems, this paper proposes a flash butt welding method and designs a DC flash butt welding equipment. Then, this paper uses Solidworks to establish a three-dimensional model of the above-mentioned welding machine. And through the finite element static analysis of the welding machine structure to assist in the design and optimization. © 2023 SPIE.

关键词： Finite element method

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Structural modeling and lightweight design of orchard bridge track

Structural modeling and lightweight design of orchard bridge...

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2023 International conference on Smart Transportation and City engineering, STCE 2023

作者： Ma, Wensong Geni, Mamtimin Tohti, Gulbahar School of mechanical engineering Xinjiang University Urumqi830049 China Xinjiang Baibo Technology Co. Ltd. Urumqi Xinjiang830002 China

ISBN: (纸本)9781510673540

Taking the bridge track installed in orchard rail transportation as the research object, based on the SIMP variable density method topology optimization theory, the main components of the bridge track main beam are topologically optimized and designed. First, ANSYS is used to establish a finite element model of the bridge type track, and combined with the engineering application situation and the connection characteristics of the main beam of the bridge type track, lightweight design is carried out. Second, the static analysis and modal analysis of the lightweight bridge track are carried out, and the stress, deformation, mass and natural frequency of the whole structure of the main beam before and after the lightweight are compared under the actual working conditions. The results show that even with a reduction of 18.25% in the mass of the main beam, the bridge track still meets the actual operating requirements, and the first natural frequency of the lightweight bridge track is 23.614Hz, which is greater than its maximum operating frequency, and resonance phenomenon will not occur. © 2024 SPIE.

关键词： Finite element method

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Mechanical design and Analysis of Cable-Driven Wearable Flexible Exoskeleton System

Mechanical Design and Analysis of Cable-Driven Wearable Flex...

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2024 International conference on Precision engineering and Mechanical Manufacturing, PEMM 2024

作者： Jin, Xuetong Ding, Wenqian Li, Qinglin Yang, Wei Wei, Yan Department of Mechanical and Automation engineering The Chinese university of Hong Kong Hong Kong Hong Kong School of Medicine The Northwest Minzu university Gansu China College of Engineering Machinery The Chang’an university Shaanxi China

ISBN: (纸本)9781510683129

As a new development direction in the field of exoskeleton research, wearable flexible exoskeleton systems are highly favored for their freedom of movement, flexibility, lightweight design, and comfortable wearability. These systems are gradually becoming the preferred choice for military operations, rehabilitation therapy, and enhancing physical performance. In this thesis, based on existing research in wearable flexible exoskeletons, we aim to design a lightweight wearable upper limb rehabilitation exoskeleton that meets the needs of stroke patients with a high likelihood of upper limb impairment. The system should provide sufficient flexibility for comfortable and convenient use while minimizing the weight to reduce the user’s burden during wear. Our proposed lightweight wearable flexible exoskeleton focuses on assisting users in achieving rehabilitation exercises for both the shoulder (external/internal rotation) and forearm (flexion/extension) movements. The system consists of a flexible fabric section connecting the torso-shoulder-upper arm, a flexible fabric section for the forearm, and a back-mounted actuation device. The fabric sections primarily consist of elastic textile materials with a few rigid components. Emphasizing lightweight design, we strive to minimize the exoskeleton’s weight, ensuring optimal user comfort. The actuation device connects to the fabric sections via tensioned wires, driven by a motor to induce arm movement during rehabilitation exercises. To enhance safety and prevent secondary upper limb injuries due to exoskeleton malfunction, we incorporate a physical limiter that restricts the exoskeleton’s range of motion. Additionally, we include tension-adjustment mechanisms and cushioning springs to improve the feasibility of this wearable flexible exoskeleton. © 2024 SPIE.

关键词： Exoskeleton (Robotics)

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