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7th international conference on Advances in Biomedical Engineering, ICABME 2023

作者： Daou, Roy Abi Zeid Geha, Elio Aoun, Youssef Hayek, Ali Boercsoek, Josef Olmedo, Jose Javier Serrano Université la Sagesse Biomedical Engineering Department Furn El Chebbak Beirut Lebanon Mart Learning Education and Research Center Chananir Lebanon Lebanese German University Faculty of Public Health Biomedical Technologies Department Jounieh Lebanon University of Applied Science Hamm-Lippstadt Department Lippstadt 2 Hardware Engineering Marker Allee 76-78 Hamm59063 Germany University of Kassel Faculty of Electrical Engineering /Computer Science Department of Computer Architecture and System Programming Germany Universidad Politecnica de Madrid Lab of Bioinstrumentation and Nanomedicine Centro de Tecnologia Biomedica Spain

ISBN: (纸本)9798350325850

Chronic back pain can present a serious health concern, with symptoms that can significantly affect an individual's well-being, mobility, and overall quality of life over an extended period. While chronic back pain may manifest suddenly in some cases, it often develops gradually and persists for weeks, and in untreated cases, it can linger for years. Hence, the utilization of assistive devices such as wearable posture-monitoring vests can offer valuable assistance and guidance to users. this research paper is dedicated to the development of a system for detecting, diagnosing, and correcting poor posture, specifically leaning posture. the vest is designed to provide users with visual, auditory, and tactile cues to help them address this issue, thereby reducing the risk associated with leaning. Additionally, an integrated electrical box has been designed to consolidate all components directly onto the main board in a secure enclosure. this box also displays the daily count of instances where the user has leaned. this system is characterized by its electrical safety, portability, compactness, comfort, and affordability. A comprehensive analysis of the system's performance has been conducted with a meticulous evaluation of accuracy. Each component of the system has undergone successful testing, and the system as a whole is currently in the testing phase. the results of these tests have indicated a lack of faulty errors and have demonstrated outstanding accuracy and detection rates. Over 100 individuals of varying ages, genders, and BMI categories were involved in testing, with each person wearing the device for an average of six hours. the accuracy rate achieved was 98.85%, with an average of 54.35 instances of poor posture detected per participant. © 2023 IEEE.

关键词： Wearable technology

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A column generation approach for pickup cycle formation in multi-head gantry-type compoennt placement tools

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international JOURNAL OF INDUSTRIAL ENGINEERING-thEORY APPLICATIONS AND PRACTICE 2003年第4期10卷 569-576页

作者： Sun, DS Lee, TE Lee, K Korea Adv Inst Sci & Technol Dept Ind Engn Taejon 305701 South Korea Hankuk Univ Foreign Studies Ind Informat & Syst Engn Div Yongin 449791 Kyongki Do South Korea

We consider the pickup cycle formation problem for multi-head gantry-type component placement tools. the pickup cycle formation decision is to determine which components are picked up for each pick-and-place work cycle when the feeder arrangement is given. the objective is to minimize the total number of pickups, or equivalently maximize the number of simultaneously picked components for each access of a multi-head module. We formulate the problem as a set covering problem that has decision variables as many as the number of feasible pickup patterns of a cycle. We solve the integer programming formulation of the problem by a column generation method, of which subproblem for column selection is efficiently solvable in a polynomial time graph algorithm. Implementation details and computational results using real data are discussed. Significance: the pickup cycle formation problem of the multi-head gantry-type component placement tool to utilize the multiple heads is investigated. the efficient method based on column generation techniques for the problem will reduce the tool cycle time by minimizing the total number of pickups in a PCB assembly.

关键词： surface mounting multi-head pickup cycle formation integer programming column generation

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Consider the planning of DG and EV integration into the distribution network

Consider the planning of DG and EV integration into the dist...

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Energy, Electrical and Power Engineering (CEEPE), international conference on

作者： Qi Zhang Yalei Zhang Shangdong University Jinan China

ISBN: (数字)9798350375794

ISBN: (纸本)9798350375800

With the rapid development of electric vehicles (EV) and distributed generation (DG), a large number of uncertain loads and distributed power supplies are connected to the power grid, which poses a threat to the stable and safe operation of the power grid. therefore, this paper adopts Monte Carlo method to predict the daily load of electric vehicles, constructs a double objective function considering the economic demand and power quality demand of distribution network, adopts genetic algorithm to solve it, and finally determines the location and capacity of distributed power supply according to the EV load.

关键词： Renewable energy sources Power engineering Uncertainty Monte Carlo methods Power quality Distribution networks Linear programming

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From component-based to service oriented software architecture for healthcare

From component-based to service oriented software architectu...

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international conference on e-health Networking, Applications and Services (HealthCom)

作者： S.C. Chu Department of Information Systems & Operations Management University of Auckland New Zealand

Traditional approach to software development has always been expensive and risky business especially in the complex healthcare market. Object oriented design model moves software development away from monolithic systems towards component-based software architecture. Advances in distributed database, network and Internet technologies, the need for more flexible and responsible business usher in the service oriented architecture (SOA) as the new software design paradigm. Health care activities are defined as coordinated intentional actions packaged as "products" or services that are organized based on workflow management principles. the SOA is considered as highly suitable a new software design model for the healthcare industry. this paper illustrates how clinical objects from an object-oriented clinical information systems can be mapped to the SOA structure.

关键词： Software architecture Medical services Service oriented architecture Software design programming Object oriented modeling Distributed databases Object oriented databases IP networks Web and internet services

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Switching Harmonic Attenuation of Grid-Tied Converters Using LLCL Filters and MPC-SVPWM

Switching Harmonic Attenuation of Grid-Tied Converters Using...

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China international Electrical and Energy conference (CIEEC)

作者： Muhamamd Waqas Qaisar Jingyang Fang Wenrui Li School of Control Science and Engineering Shandong University Jinan China

ISBN: (数字)9798350359558

ISBN: (纸本)9798350359565

this paper introduces an enhancement in grid-tied converter technology by incorporating a Model Predictive Control (MPC)-based space vector pulse width modulation (SVPWM) along with an advanced $LLCL$ filter. this approach aims to improve the conversion efficiency in grid-tied applications to three-phase ac, offering better harmonic attenuation than standard $LC$ and $LCL$ filters. the implementation of dual-mode control for dc voltage stabilization and the use of quadratic programming for inverter switching optimization is proposed to reduce switching losses, thereby augmenting system efficiency. Comparative simulations demonstrate a measurable efficiency improvement over traditional linear inverter methods, indicating a notable advancement in grid-tied converter technology, especially in terms of harmonic reduction and overall system performance enhancement.

关键词： Space vector pulse width modulation System performance Switching loss Switches Harmonic analysis Inverters Quadratic programming

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Shelf-space Allocation and Product Arrangement for Fruits Considering Facility's Temperature Distribution

Shelf-space Allocation and Product Arrangement for Fruits Co...

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international conference on Industrial Engineering and Applications (ICIEA)

作者： Dyah Satiti Ahmad Rusdiansyah Ratna Sari Dewi Institut Teknologi Sepuluh Nopember Surabaya Indonesia

ISBN: (数字)9781728167855

ISBN: (纸本)9781728167862

Quality deterioration is the main reason for the short shelf life of fresh food products. Temperature control means to reduce the quality deterioration rate. Nevertheless, the use of refrigerated facilities does not stop the quality deterioration process, but slows down the deterioration rate. Meanwhile, with limited capacity of refrigerated facility, retail had to store their fresh products that have different requirement of storage temperature. In other hand, within one facility, the distribution temperature is not uniform. therefore, managing the fresh food within facility becomes challenging, especially for retail. this study aim to maximize retail's profit by determining the shelf-space allocation number of several products in refrigerated facility and product position within facility. Mixed integer linear programming model is used to solve this problem.

关键词： Resource management Temperature distribution conferences Industrial engineering Food products Temperature control Mixed integer linear programming

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the analysis and research of the programming operation based on substation equipment status

The analysis and research of the programming operation based...

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Energy, Electrical and Power Engineering (CEEPE), international conference on

作者： Guangming Li Yan Sun Lianrong Pan Cuiyun Luo Qiuquan Deng Daiyu Xie Yin Wu Yipeng Wu Dispatch And Control Center of Guangxi Power Grid Nanning China Dispatch And Control Center Of Liuzhou Power Supply Bureau Guangxi Power Grid Liuzhou China

ISBN: (数字)9798350375794

ISBN: (纸本)9798350375800

With the continuous development of power grid, the number of intelligent substations is increasing, and the electrical operation is becoming increasingly complex, which puts forward higher safety and efficiency requirements for the operation of substations. the existing substation operation mode has been unable to meet the needs of power grid operation and maintenance. According to the different states of substation equipment, this paper puts forward the programmed operation process, which can automatically check the state of equipment before operation and carry out remote automatic operation by the system, improve the intelligent degree of operation, and improve the accuracy, rapidity and effectiveness of substation electrical equipment operation.

关键词： Power engineering Substations Accuracy programming Power grids Safety Maintenance

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Composite ring made of 3D woven preform injected by RTM: From design to full scale testing

Composite ring made of 3D woven preform injected by RTM: Fro...

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SAMPE Long Beach 2016 conference and Exhibition

作者： Fischer, Hermann Poulaert, Bernard Magerman, Jean-Louis Bargeton, Etienne De Lumley, thibault Valcke, André-Marie Atkins, thierry Gokce, Hakan Bryn, Leon ESA-ESTEC Postbus 299 Noordwijk2200 AG Netherlands SONACA Route Nationale Cinq Gosselies6041 Belgium BRM 23 North 7th Street BallyPA19503 United States

ISBN: (纸本)9781934551233

As part of the European Space Agency (ESA) Future Launchers Preparatory Programme (FLPP), SONACA (BELGIUM) and BRM (USA) companies joined their competences to develop a new concept of structural European launcher cryogenic upper inter-stage composite ring. this challenging program targeted the replacement of an ARIANE traditional aluminum ring by a lighter and affordable multi-functional composite structure. the ARIANE 5 aluminum specification was used as the basis of the design concepts, with adaptation to a future launcher 4.3 m diameter. After a preliminary design phase, involving selection of different manufacturing routes, material and processes by elementary tests made at coupon level, the 3D orthogonal weaving process was selected as the best candidate to realize a full scale ring demonstrator. the structure was designed, stressed and verified by test by SONACA, and the 3D weaving was optimized in close collaboration with BRM. Five 90 segment carbon fiber dry preforms were produced by BRM using the most advanced weaving automated technology. All these segments were injected by SONACA using their expertise in RTM process. the parts were controlled both geometrically and wrt internal defects by NDT. A 30 segment was successfully submitted to five static load cases up to failure, showing a TRL of 5. Four 90 segments were assembled by CFRP splices to exhibit a full ring demonstrator. Copyright 2016 by ESA-ESTEC. Published by the Society for the Advancement of Material and Process

关键词： Carbon fibers

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Signal Timing Optimization Based on Trajectory Data

Signal Timing Optimization Based on Trajectory Data

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IEEE international conference on Computer and Communication Engineering Technology (CCET)

作者： Lei Gao Haoyu Zhang Jinhong Li School of Information Science and Technology North China University of Technology Beijing China

ISBN: (数字)9798350355673

ISBN: (纸本)9798350355680

A fixed signal timing optimization method utilizing historical trajectory data at intersections is proposed. A model applicable to low-resolution trajectory data is developed to optimize fixed signal timing. the model takes the green split of each phase as decision variables, aiming to minimize the total trajectory delay. Based on the proportional principle of uniformly distributed randomly arriving trajectories under different signal timings, the constraints of the model are constructed from three aspects: signal constraints, trajectory signal constraints, and departure time constraints. the model solving is transformed into a mixed-integer linear programming problem. Simulation experiments using SUMO are conducted to validate the effectiveness of the proposed model.

关键词： Computational modeling Optimization methods Data models Trajectory Mixed integer linear programming Delays Time factors

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An oscillating algorithm for variable ordering in binary decision diagram

An oscillating algorithm for variable ordering in binary dec...

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IEEE international conference on Electronics, Circuits and Systems (ICECS)

作者： M. Taher A. Salem W. Mahdi A. Wahdan Computer and Systems Department Ain Shams University Cairo Egypt

ISBN: (纸本)0780365429

In this paper we present a novel heuristic for improving the variable order computation in the binary decision diagram. the proposed algorithm uses two way swapping and it oscillates forward and backward to minimize the number of cycles needed to get the best order. the validity of the proposed approach has been shown using ISCAS 85 benchmarks.

关键词： Data structures Boolean functions Binary decision diagrams Combinational circuits Engines Polynomials Dynamic programming Circuit analysis Input variables

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