Algorithm For Tracking Position And Orientation Of Drug Delivery Capsules In Gastrointestinal Tract,
2018
1.School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China;;
Algorithm For Tracking Position And Orientation Of Drug Delivery Capsules In Gastrointestinal Tract, Xudong Guo, Zhengping Lu, Qinfen Jiang, Shuyi Wang, Haipo Cui
Journal of System Simulation
Abstract: To realize an accurate releasing by a drug-delivery capsule in the gastrointestinal tract, a method of magnetic vector detection with angle sensing has been presented to track the capsule in real time; and a prototype of the tracking system has been developed. Based on the fundamentals of spatial distribution of magnetic vector fields, a nonlinear model of tracking is established. An improved artificial bee colony algorithm is studied to solve the magnetic inverse problem. In the improved algorithm, a chaos operator is used to generate an initial population and a sort selection is used to prevent premature convergence. …
Design Of Mini Folding Electric Scooter Based On Relative Attitude Angle Control,
2018
South China University of Technology, Guangzhou 510000, China;
Design Of Mini Folding Electric Scooter Based On Relative Attitude Angle Control, Lijun Jiang, Zhanghong Wu, Shaohui Pan, Zhelin Li, Zhiyong Xiong, Yongqing Fu
Journal of System Simulation
Abstract: To help people move conveniently after getting off the public transport in the city, anew mini electric scooter design is proposed. This new scooter uses a smart mobile phone to receive driving intention and owns more efficient, convenient and space-saving folding pattern. A kinematics model of scooter is set up and discussed. A control strategy based on the relative attitude angle, an attitude sensor data consolidation approach based on the complementary filter, a solution to the Euler angle jumping and an estimate method to the wrong operation are proposed. The design is made into a prototype based on …
Dynamic Blind Source Separation Method Of Bearing Fault Diagnosis Based On Ga-Aw-Pso,
2018
Chongqing Key Laboratory of Signal and Information Processing (CQKLS & IP), Chongqing University of Posts and Telecommunications (CQUPT), Chongqing 400065, China;
Dynamic Blind Source Separation Method Of Bearing Fault Diagnosis Based On Ga-Aw-Pso, Tianqi Zhang, Baoze Ma, Xingzi Qiang, Shengrong Quan
Journal of System Simulation
Abstract: The adaptive particle swarm optimization based on genetic mechanism (GA-AW-PSO) is proposed, aiming at blind source separation for dynamic hybrid bearing signals. The negentropy of separated signal is regarded as an objective function. The inertia weight is adjusted adaptively to reduce the invalid iterations according to the fitness difference. The introduction of genetic mechanism can increase diversity and is helpful for dynamic signal processing. The parameterized representation of orthogonal matrices can reduce the complexity of the algorithm. The simulation results show that the proposed method is superior to traditional blind source separation for the dynamic mechanical hybrid analog signal. …
Event-Triggered Non-Fragile H∞ State Estimation For Fuzzy Time-Delay Neural Networks,
2018
1. College of Electrical and Information Engineering, Northeast Petroleum University, Daqing 163318, China;;2. School of Mechanical and Electrical Engineering, Daqing Normal University, Daqing 163712, China;
Event-Triggered Non-Fragile H∞ State Estimation For Fuzzy Time-Delay Neural Networks, Yanqin Wang, Weijian Ren
Journal of System Simulation
Abstract: For a class of fuzzy neural networks with randomly occurring time-varying delays and randomly data packet loss, an event-triggered non-fragile H∞ state estimator is designed. The event-triggered condition is introduced to determine whether the signal is transmitted or not, so as to reduce the occupation rate of network resource. Random variables of Gaussian distribution and the multiplicative gain uncertainties are adopted to construct the non-fragile state estimator with randomly occurring gain variations. By constructing Lyapunov function, and via stochastic computation and linear matrix inequality technique, the sufficient conditions for the existence of non-fragile estimators are obtained, which guarantee …
Emergency Condition Selection Based On Tcp-Nets,
2018
School of Computer Science and Technology, Anhui University of Technology, Ma'anshan 243002, China;
Emergency Condition Selection Based On Tcp-Nets, Weihong Liu, Zheng Xiao, Cheng Chen, Li Qiao
Journal of System Simulation
Abstract: The representative or relative important emergency conditions need to be selected for making well-directed emergency plans. The quantitative method is normally used to select emergency conditions, but it requires users to specify the weight of every attribute, which does not conform to the users' habit. A qualitative method for emergency condition selection is put forward which includes two steps: for the first step, TCP-nets is adopted to describe users' requirements; and for the second step, the most important emergency conditions are selected based on TCP-nets. The effectiveness of the method is proved, and the efficiency is verified by experiments …
Test Data Compression Scheme For Fast Search Best Rational Approximate Fraction,
2018
1. School of Computer and Information, Anqing Normal University, Anqing 246011, China;;
Test Data Compression Scheme For Fast Search Best Rational Approximate Fraction, Haifeng Wu, Wenfa Zhan, Yifei Cheng
Journal of System Simulation
Abstract: Rapid growth of test data volume becomes a major factor for test time and manufacturing cost increasing. To reduce test data volume, a code-based compression scheme with fast search best rational approximate fraction is presented. The run-length data is converted into floating point numbers; and the equal best rational approximate fractions of floating point numbers is searched quickly; the appearing law of run-length data in the form of integer numerator and integer denominator is stored instead of storing run-length data directly. This scheme is compatible with traditional code-based methods. It also has simple compression and decompression protocol, good compression …
Imu Single-Axis Rotation Method And Error Analysis Of Modulation Inertial Navigation System,
2018
School of Geomatics, Liaoning Technical University, Fuxin 123000, China;
Imu Single-Axis Rotation Method And Error Analysis Of Modulation Inertial Navigation System, Sun Wei, Ruibao Li, Zhang Yuan, Yang Dan
Journal of System Simulation
Abstract: Aiming at the problem that inertial device bias has an influence on the improvement of system precision, a single axis error modulation scheme whose sensitive axis is misalignment with rotation axis which can continuously rotate in clockwise and counterclockwise is proposed. Based on the same level precision of inertial components in IMU, the IMU is installed on rotation mechanism with non-coincidence. The symmetric part of inertial device deviation can be compensated by the positive and negative cancellation of the device deviation in the rotation axis direction and the rotation modulation in the vertical plane of the rotary axis. The …
Eye Gaze Tracking In 3d Immersive Environments,
2018
College of Information Engineering, Zhengzhou University, Zhengzhou 450001, China;
Eye Gaze Tracking In 3d Immersive Environments, Xincan Zhao, Shihao Pan, Yaping Wang, Tie Yun
Journal of System Simulation
Abstract: Aiming at the problem that human-computer interaction in immersive environments is entirely dependent on the body movement with low operational efficiency,a 3D eye gaze tracking method is proposed to gain the 3D gaze point of the user. Thus the interactive operation could be achieved, which provides a natural and bidirectional way for interaction. The Leap Motion controller is innovatively used to track the coordinates of eyes and the head position is tracked with the motion capture device. The gaze point under free movement can be estimated based on the mapping equation that is obtained in the initial …
Identification Of Closed Loop Projection Subspace For Motor Based On Hankel Correlation Function,
2018
1. School of Automation, Chongqing University, Chongqing 400044, China;;2. Computer College, Chongqing College of Electronic Engineering, Chongqing 401331, China;
Identification Of Closed Loop Projection Subspace For Motor Based On Hankel Correlation Function, Minghong She
Journal of System Simulation
Abstract: To solve estimation deviation problem of model parameter in the closed-loop system identification, the subspace identification model and state space model based on the estimation of the correlation function are presented, and through the correlation function estimation and zero space followed by projection, the block Hankel matrix of identification framework was filled so as to obtain the scope of the extended observability matrix; on the basis of the same projection on the time offset set of related data, the RQ decomposition of the projection is calculated by numerical calculation, and the dynamic estimation of the system model is obtained. …
High Frequency Blend Clips Matching Based Fire Sound Synthesis,
2018
1. School of Computer Science and Technology, Tianjin University, Tianjin 300350, China;;
High Frequency Blend Clips Matching Based Fire Sound Synthesis, Yin Qiang, Shiguang Liu
Journal of System Simulation
Abstract: Aimed at the problem which generated by fire sound simulation in virtual reality field, a new fire sound synthesis method was proposed. Most of the sound synthesis methods currently separate the fire sound into low and high frequencies for synthesizing. The influence of low frequency fire sound models was considered and the low frequency signal was synthesized based on the physical visual fire model data. The high frequency sound signal was synthesized based on high frequency blend clips matching method. According to the characteristics of the fire's high frequency, the different frequency bands of high noise signal …
Physically-Based Dynamic Algorithms For Time-Varying Of Flowers And Leaves,
2018
1. School of Information Science and Technology, Beijing Forestry University, Beijing 100083, China;;
Physically-Based Dynamic Algorithms For Time-Varying Of Flowers And Leaves, Jiao Di, Yang Meng, Yang Gang
Journal of System Simulation
Abstract: This paper presents physically-based simulations of dynamic algorithms of the blossom and fading of flowers as well as the time-varying leaves following the seasons. The models of the flowers are constructed according to the previously collected primary biological data of organs of flowers. The dynamic simulation is presented by two phases: the process of blooming and the process of fading. To simulate the former, the curved surfaces of petals are controlled by controlling the points on the Bezier surface; for realizing the simulation of the latter, the physical method is used. The dynamic effects of colors of leaves according …
Combination Forecasting Of Stock Index Time Series Based On Cooperative Game Theory,
2018
Hunan Railway Professional Technology College, Zhuzhou 412001, China;
Combination Forecasting Of Stock Index Time Series Based On Cooperative Game Theory, Luo Wei
Journal of System Simulation
Abstract: In view of the characteristics of nonlinear, large amplitude, frequent fluctuations in China's stock market, a prediction method of intelligent composite stock index time series based on the cooperative game is presented. The prediction model of stock index time series is established by using neural network method based on the correlations among the various economic indicators, and the development trend and laws of stock index time series are established by using the improved ARIMA method. The two methods are combined by importing cooperative game method. Simulation results show that the prediction accuracy of the presented method is controlled …
Temperature Characteristics Of Contact Wire Under Different Driving Intervals,
2018
1.Faculty of Electrical and Control Engineering, Liaoning Technical University, Huludao 125105, China;;
Temperature Characteristics Of Contact Wire Under Different Driving Intervals, Hongwei Wang, Zhang Kai, Zhiyong Wang, Fengyi Guo, Liu Shuai, Zhang Qiong
Journal of System Simulation
Abstract: To reduce the wear of pantograph and catenary system while decreasing the headway, the temperature field of the contact wire is studied. A simulation model is established by using the COMSOL Multiphysics software. The effectiveness of the model is verified with temperature experiments. Temperature field of the contact wire of freight locomotive and passenger locomotive in different intervals is studied by simulation. The smaller the headway of trains, the higher the temperature value, and the shorter the balance process. Under the constraint of temperature field, the headway of freight locomotive couldn't be less than 180s under long term operation. …
Recent Trends In The Frequency And Duration Of Global Floods,
2018
CUNY City College
Recent Trends In The Frequency And Duration Of Global Floods, Nasser Najibi, Naresh Devineni
Publications and Research
Frequency and duration of floods are analyzed using the global flood database of the Dartmouth Flood Observatory (DFO) to explore evidence of trends during 1985–2015 at global and latitudinal scales. Three classes of flood duration (i.e., short: 1–7, moderate: 8–20, and long: 21 days and above) are also considered for this analysis. The nonparametric Mann–Kendall trend analysis is used to evaluate three hypotheses addressing potential monotonic trends in the frequency of flood, moments of duration, and frequency of specific flood duration types. We also evaluated if trends could be related to large-scale atmospheric teleconnections using a generalized linear model framework. …
Factors Influencing Household Solar Adoption In Santiago, Chile,
2018
George Fox University
Factors Influencing Household Solar Adoption In Santiago, Chile, Jeffrey P. Walters, Jessica Kaminsky, Claudio Huepe
Faculty Publications - Biomedical, Mechanical, and Civil Engineering
In Santiago, Chile, the market conditions are seemingly excellent for the household adoption of photovoltaic (PV) technology, yet the uptake is negligible. To explore this paradox, the authors conducted a Delphi study to solicit the knowledge of a panel of Chilean PV experts. These efforts yielded 26 factors—both motivations and barriers—impacting the diffusion of PV in Santiago. Of the 26, experts were in consensus on the relative importance of 21. The literature suggests that diffusion of PV technologies is influenced by complex technical, economic, and social factors. Similarly, the experts saw influence from financial, environmental, and energy supply (e.g., electrical …
Fixing Vertebral Compression Fractures With Medtronic,
2018
California Polytechnic State University, San Luis Obispo
Fixing Vertebral Compression Fractures With Medtronic, Kelly Fitzgerald, Trevor Bingham, Alex Denbaugh, Jordan Tang, Jon Stearns
Industrial and Manufacturing Engineering
No abstract provided.
Connected Alerts Across Manufacturing Facilities,
2018
California Polytechnic State University, San Luis Obispo
Connected Alerts Across Manufacturing Facilities, Jordan J. Moy
Industrial and Manufacturing Engineering
The lack of communication during a large project can result in costly delays when striving to achieve previously defined benchmarks. Often times, each part of a project will require verification from an employee of a specified area of expertise before being allowed to advance to the next stage. Finding these individuals can be extremely hard due to the large, spread out campus of manufacturing facilities as well as the numerous projects the company is concurrently working on. These floor support requests can sometimes take from an hour to even a whole work day, causing major delays in the production schedule. …
Process Improvement At "The Manse On Marsh",
2018
California Polytechnic State University, San Luis Obispo
Process Improvement At "The Manse On Marsh", Kevin C. Manko
Industrial and Manufacturing Engineering
The Manse on Marsh is an independent and assisted living facility that prides itself on providing life-enriching care for the elderly. Considering that the staff is essential to supply this care and turnover rates are a constant factor, the company would like to reduce the time it takes to hire new employees by at least one week. To facilitate this goal, process flow maps are utilized to assess the current state of the hiring process and metrics are applied to support future state design decisions. After performing a value added analysis and identifying areas of waste, a total of 20 …
High Bay Capacity Utilization Tool,
2018
California Polytechnic State University, San Luis Obispo
High Bay Capacity Utilization Tool, Dante C. Mazzanti, Skyler L. Schilke, Conner P. Lawston
Industrial and Manufacturing Engineering
Northrop Grumman’s Space Park facility has many inefficiencies in their high bay scheduling processes. Additionally, it is very hard for project managers to figure out the capabilities of each high bay in order to schedule their specific project. The purpose of this project is to develop a tool that can be used across the facility to easily create projects, assign projects, view room capabilities, and view a master schedule of the rooms. After researching commercially available tools, our approach to designing this system was to use tools that are already utilized at the facility (Microsoft Suite and Tableau) and engineer …
Design And Testing Of A Hands-Free Toilet Seat Opener/Closer,
2018
California Polytechnic State University, San Luis Obispo
Design And Testing Of A Hands-Free Toilet Seat Opener/Closer, Jordan Benjamin Schaeffer
Industrial and Manufacturing Engineering
People tend to get frustrated when the toilet seat must be moved up or down before use. Men and women often leave the toilet seat in different positions when finished which can cause problems when men and women use the same bathroom. With gender neutral bathrooms gaining in popularity, this frustration will only increase. The objective of this project was to design and test a hands-free system to allow a user to quickly and easily open or close a toilet seat. For the product to be viable, it will have to be durable and easy to clean around, while also …
