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.

scholarly journals Attribute Synthetic Evaluation Model for the CBM Recoverability and Its Application

2015 ◽  
Vol 2015 ◽  
pp. 1-6 ◽  
Author(s):  
Xiao-gang Xia ◽  
Yun-feng Yang
Keyword(s):  
Evaluation Model ◽  
Influence Factors ◽  
Coal Bed ◽  
Target Area ◽  
Actual Situation ◽  
Calculation Methods ◽  
Basic Premise ◽  
Similar Weight ◽  
Development Practice ◽  
Synthetic Evaluation

The coal-bed methane (CBM) recoverability is the basic premise of CBM development practice; in order to effectively evaluate the CBM recoverability, the attribute synthetic evaluation model is established based on the theory and method of attribute mathematics. Firstly, five indexes are chosen to evaluate the recoverability through analyzing the influence factors of CBM, including seam thickness, gas saturation, permeability, reservoir pressure gradient, and hydrogeological conditions. Secondly, the attribute measurement functions of each index are constructed based on the attribute mathematics theory, and the calculation methods of the single index attribute measurement and the synthetic attribute measurement also are provided. Meanwhile, the weight of each index is given with the method of similar number and similar weight; the evaluation results also are determined by the confidence criterion reliability code. At last, according to the application results of the model in some coal target area of Fuxin and Hancheng mine, the evaluation results are basically consistent with the actual situation, which proves that the evaluation model can be used in the CBM recoverability prediction, and an effective method of the CBM recoverability evaluation is also provided.

Effect Evaluation of Bench Blasting Based on Unascertained Measurement Model

2014 ◽  
Vol 1033-1034 ◽  
pp. 1377-1380
Author(s):  
Tie Jun Tao ◽  
Jian Hua Zhang ◽  
En An Chi ◽  
Ming Sheng Zhao ◽  
Qiang Kang
Keyword(s):  
Evaluation Model ◽  
Measurement Theory ◽  
Influence Factors ◽  
Measurement Model ◽  
Evaluation Index ◽  
Actual Situation ◽  
Effect Evaluation ◽  
Uncertainty Measurement ◽  
Bench Blasting ◽  
Index Weight

In order to resolve the uncertainty problem of influence factors in effect evaluation of bench blasting, the effect evaluation model of bench blasting based on uncertainty measurement theory was built, then this model was used to evaluate the bench blasting effect in Hongshuitai flat engineering. The evaluation results show that: the information entropy and confidence identifying criterion were respectively used to ascertain the evaluation index weight and identifying criterion, by these ways, the evaluation results of this model are more objective; and the evaluation index can be selected flexibly according to actual situation, the calculation of evaluation model is simple, so the evaluation results can offer decision basis for blasting workers to make timely adjustment of the blasting scheme.

Research and Analysis on Electrolytic Preparation of High Purity Potassium High-Speed Rail Technology

2012 ◽  
Vol 160 ◽  
pp. 12-16
Author(s):  
Dong Mei Sun
Keyword(s):  
High Purity ◽  
High Speed ◽  
Preparation Method ◽  
Influence Factors ◽  
Actual Situation ◽  
Acid Salt ◽  
High Speed Rail ◽  
High Iron ◽  
Electrolytic Preparation ◽  
Modern Economic

Ferrate refers to the highest state of iron for + 6 price of the corresponding oxygen acid salt, the oxygen acid salt inherently a performance is very superior strong oxidizer, in modern economic society construction in the process of development, has a good application prospect. Based on the actual situation, with electrolytic method for high purity high iron potassium process as the research object, the high purity high iron potassium structural properties, preparation method, electrochemical method for high purity acid potassium high iron the influence factors of these four aspects to discuss how to use electrolytic method for high purity high iron potassium process more detailed analysis and explained, and then demonstrates the power needed to prepare high purity in high iron potassium process preparation is more superior than other ways of performance.

scholarly journals Influence Factors and Correction coefficient for Energy Consumption of Electric Vehicles

2021 ◽  
Vol 252 ◽  
pp. 02059
Author(s):  
Xiao Li ◽  
Runze Gao ◽  
Haitao Yu
Keyword(s):  
Energy Consumption ◽  
Electric Vehicles ◽  
Influence Factors ◽  
Big Data Analysis ◽  
Operating Conditions ◽  
Correction Coefficient ◽  
Actual Situation ◽  
Vehicle Identification ◽  
Actual Operation ◽  
Actual Energy Consumption

With the application of electric vehicles, the problem of energy consumption has been widely concerned. Fixed operating conditions energy consumption in the laboratory environment was used for vehicle identification, which made big difference from the actual situation. The paper was based on the actual operation data of the vehicles. The influence factors of energy consumption have been put forward through theoretical analysis. The correction factor was calculated by big data analysis and statistical fitting. The actual energy consumption of electric vehicles can be more accurately estimated through the research results.

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.

Study on Calculation Method of Stresses under Embankment

2011 ◽  
Vol 90-93 ◽  
pp. 656-661
Author(s):  
Hong Bin Xiao ◽  
Yue Wang
Keyword(s):  
Calculation Method ◽  
High Speed ◽  
Influence Factors ◽  
Engineering Practice ◽  
Correction Coefficient ◽  
Calculation Methods ◽  
Uniform Load ◽  
High Speed Railway ◽  
Railway Engineering ◽  
The Relationship

In China high-speed railway engineering practice, embankment settlements calculated values were often greatly different to the measured values, which may result from the stresses distribution under the embankment usually simplified. According to this issue, the elastic embankment method was introduced, the stresses under various embankment were calculated, the influence factors of the stresses values and distribution were analyzed. The stresses calculated by elastic embankment method, proportional load form and uniform load form were compared with the measured stresses. The relationship among the four kinds of stresses was analyzed. The applicable conditions of the various calculation methods were put forward. If the ratio of embankment half surface width and height was less than 4.5, when the stresses calculated by uniform load form were multiplied by correction coefficient 1.15, they were tallied well with the measured stresses.

Experimental Investigation and Analytical Calculation of the Bending Force for Air Bending of Structured Sheet Metals

2011 ◽  
Vol 418-420 ◽  
pp. 1294-1300 ◽  
Author(s):  
Viatcheslav Malikov ◽  
Ralf Ossenbrink ◽  
Bernd Viehweger ◽  
Vesselin Michailov
Keyword(s):  
Sheet Metal ◽  
Three Dimensional ◽  
Influence Factors ◽  
Analytical Calculation ◽  
Sheet Metals ◽  
Calculation Methods ◽  
Lightweight Structures ◽  
Air Bending ◽  
Bending Force ◽  
Hydroforming Process

The increasing interest in structured sheet metals for lightweight constructions and automotive can be seen in recent years. The driving force of this trend is higher stiffness of structured sheet metals in comparison to smooth sheet metals. The structured sheet metal is a sheet metal with a periodical three-dimensional geometry, which is manufactured by hydroforming process. The improved properties of this sheet metal allow the weight reduction of car components and lightweight structures. The purpose of this study is the determination of the force requirements by air bending of structured sheet metal and an analysis of influence factors on the bending force. Moreover an improvement of an analytical calculation of the maximal force for air bending of structured sheet metals is presented. In this work the steels DC04, DX56D-Z and X5CrNi18-10 were investigated. The results have shown that the bending position and the structure location have a big influence on the bending force. All investigated materials have similar behaviour. The largest and smallest bending force can be seen in the bending positions III and II respectively. At the structure location “negative” the maximal bending force is smaller than at the structure location “positive”. The results of the different calculation methods were compared to the experiments. The developed analytical approach provides more precise results than conventional method. In contrast to existing analytical calculation methods it takes into account the influence of the structure location and bending position of structured sheet metals on the bending force

Cluster Model Study of the Incorporation Process of Excess Arsenic into Interstitial Positions of the GaAs Lattice

1999 ◽  
Vol 584 ◽  
Author(s):  
T. Marek ◽  
S. Kunsági-Máté ◽  
H. P. Strunk
Keyword(s):  
Ab Initio ◽  
Ab Initio Calculation ◽  
Cluster Model ◽  
Quantum Mechanical ◽  
Calculation Methods ◽  
Interstitial Position ◽  
Model Study ◽  
Bonding Length

AbstractWe study an As2 molecule approaching a planar, non-reconstructed, As terminated GaAs(001) surface by using a suitable cluster and quantum mechanical ab-initio calculation methods. During our calculations the As2 molecule is always oriented perpendicularly to the surface and its bonding length may vary. We find a metastable position below the growing surface which facilitates the incorporation of the leading As atom into an interstitial position of the crystal during growth. We give a first model for this incorporation process.

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