scholarly journals Influence Factors on the Passenger Evacuation Capacity of Cruise Ships: Modeling and Simulation of Full-Scale Evacuation Incorporating Information Dissemination

2021 ◽  
Author(s):  
Yue Yue ◽  
Wen-mei Gai ◽  
Yun-feng Deng
Keyword(s):  
Modeling And Simulation ◽  
Information Dissemination ◽  
Influence Factors ◽  
Full Scale ◽  
Cruise Ships

scholarly journals Model Study of Information Dissemination in Microblog Community Networks

2016 ◽  
Vol 2016 ◽  
pp. 1-11 ◽  
Author(s):  
Bo Wang ◽  
Jianhua Zhang ◽  
Haifeng Guo ◽  
Yuwang Zhang ◽  
Xiaotuo Qiao
Keyword(s):  
Life Cycle Analysis ◽  
Information Dissemination ◽  
Influence Factors ◽  
Sir Model ◽  
Community Networks ◽  
Actual Situation ◽  
Calculation Methods ◽  
Model Study ◽  
Change Trend ◽  
Dissemination Rate

We build an information dissemination model based on SIR model to study information dissemination in microblog networks. We consider different influence factors of information dissemination such as activity, credibility, and weight of network and construct calculation methods of various parameters, for instance, direct immune rate, indirect immune rate, and information dissemination rate. Meanwhile, by collecting data from API in Weibo and using the result of microblog information dissemination life cycle analysis, we utilize the model to conduct simulation and get the change trend of proportion in Stages S, I, and R. After comparing with the actual situation, this model is proved to be effective in predicting the trend of information dissemination.

Analysis on the Influence Factors of Casing Collapse Resistance Strength

2011 ◽  
Vol 415-417 ◽  
pp. 2121-2125 ◽  
Author(s):  
Qi Lou ◽  
Wei Du ◽  
Xin Li Han ◽  
Dong Feng Li ◽  
Guang Lu Zhang
Keyword(s):  
Residual Stress ◽  
Yield Strength ◽  
Material Properties ◽  
Influence Factors ◽  
Full Scale ◽  
Test Results ◽  
Resistance Property ◽  
Collapse Resistance ◽  
Strength Based ◽  
Casing Collapse

Casing collapse resistance strength is an important parameter for its properties in using. Specification, geometry accuracy, material properties, and many other reasons can influence casing collapse resistance property. Study each factors influence for casing collapse resistance strength based on full scale collapse test results of seventeen Φ177.80mm casings and there geometry and material properties test results. The results show that casing collapse resistance strength was influenced by geometry accuracy, yield strength and residual stress together. Ovality greater than 0.5% and fluctuated more than 0.5%, or eccentricity more than 10%, casing collapse resistance strength will be reduced obviously. Casing with excellent collapse resistance strength will be produced through making yield strength in appropriate level, controlling the geometry accuracy and reducing residual stress.

Analysis of the key influencing factors of haze information dissemination behavior and motivation in WeChat

2017 ◽  
Vol 45 (1) ◽  
pp. 21-29 ◽  
Author(s):  
Siqing Shan ◽  
Mengni Liu ◽  
Xiaobo Xu
Keyword(s):  
Structural Equation ◽  
Information Dissemination ◽  
Instant Messaging ◽  
Information Source ◽  
Influence Factors ◽  
Equation Model ◽  
Mobile Internet ◽  
Source Information ◽  
Content Type ◽  
Factors Affecting

Purpose With the development of mobile internet, instant messaging (IM) applications have gradually changed the way to receive information and communicate with friends. Considered as one of the important social media platforms, WeChat is the most popular IM application in China. This paper aims to examine the influence factors of haze information’s dissemination in WeChat. Design/methodology/approach Based on the theory of information dissemination and the theory of motivation, three information dissemination elements including information source, information and information receiver were proposed in the structural equation model. The model was tested using data collected from both online and offline questionnaire survey results. The data analysis from 170 valid responses confirmed the path effects that emotional motivation, social motivation of information receiver and the credibility of information source positively influenced WeChat users’ re-transmission intention and information emotional tendency negatively influenced their re-transmission intention. Findings The research model revealed these key factors that affected dissemination of haze information in WeChat. More importantly, it provided a decision-making framework to release the public emergency information in WeChat. Hence, the paper made an important contribution to practical guidance to relevant decision makers. Originality/value This study contributes to the literature on examining factors affecting the haze information transmission in WeChat. A framework was proposed to describe the information dissemination process which comprises information source, information and information receiver.

Structural health monitoring technology for a full-scale aircraft structure under changing temperature

2014 ◽  
Vol 118 (1210) ◽  
pp. 1519-1537 ◽  
Author(s):  
D. Gao ◽  
Y. Wang ◽  
Z. Wu ◽  
G. Rahim
Keyword(s):  
Composite Structures ◽  
Lamb Waves ◽  
Orthogonal Experiment ◽  
Influence Factors ◽  
Full Scale ◽  
Analytical Prediction ◽  
Detection Capability ◽  
Operating Modes ◽  
Technology Applications ◽  
Different Temperatures

Abstract This paper presents optimal operating modes for the factors to maximise the detection capability of a given SHM technology in service environment. Firstly, an orthogonal experiment was performed to determine the importance ranking of the influence factors. Through the test, it is found that operating temperatures for SHM hardware and excitation frequencies for PZT actuator were the most critical factors. Then, numerical model of Lamb waves generated and received by PZT sensors were presented to predict the distribution of response signal amplitudes under changing temperature. Verification tests were carried out on a glass fibre reinforced composite plate at different temperatures. The comparison between the analytical prediction and test results was presented and temperature-dependent optimal frequencies for PZT actuators were obtained. Finally, SHM experiments of full-scale horizontal composite structures are presented. The detection capability of the SHM technology applications of aircrafts in real world is verified by the experimental results.

scholarly journals Integrated Modeling and Simulation Capability For Full Scale Multi-Physics Simulation and Visualization of MicroReactor Concept

2019 ◽  
Author(s):  
Piyush Sabharwall ◽  
Ching-Sheng Lin ◽  
Joshua E Hansel ◽  
Vincent Laboure ◽  
David Andrs ◽  
...  
Keyword(s):  
Modeling And Simulation ◽  
Full Scale ◽  
Integrated Modeling ◽  
Physics Simulation

Modeling and Simulation of Single Abrasive-Grain Cutting Process in Creep Feed Grinding

2016 ◽  
Vol 693 ◽  
pp. 1241-1246 ◽  
Author(s):  
Zhen Guo Nie ◽  
Gang Wang ◽  
Yong Liang Lin ◽  
Xiang Su ◽  
Yi Ming Rong
Keyword(s):  
Modeling And Simulation ◽  
High Speed ◽  
Influence Factors ◽  
Simulation Method ◽  
Maximum Temperature ◽  
Grinding Forces ◽  
Abrasive Grain ◽  
Creep Feed Grinding ◽  
Creep Feed ◽  
Single Grain

Single abrasive-grain cutting is the key research point in grinding process. Because of the narrow space and quick velocity, modeling and simulation method is an approach way to study the single grain cutting. This paper studied the distribution of flow stress and plastic strain, the temperature field near cutting grain. Then experiment was conducted to measure the cutting forces in single grain cutting test. The validation shows good correctness and accuracy of FEA model. Then orthogonal simulation test was carried out to research the influence factors for the grinding forces and temperature distribution. It is found that creep feed grinding has a large grinding forces than high speed grinding in the grain scales. But the maximum temperature value is affected both by depth and speed distinctly.

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