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International Core Journal of Engineering 2019年第12期5卷 149-154页

作者： Xin Wang Yang Shen

In order to successfully undertake the rapid growth of container transportation volume between China and ASEAN region brought by the ＂One Belt, One Road＂ policy, this paper analyzes the specific composition of shipping cost based on the previous research on the optimization of container route network, and uses the mathematics of mixed integer programming. The method is to establish a container route network optimization model with the minimum total transportation cost as the target, and use matlab software to solve the problem. Finally, taking the route network between Xiamen Port and the five important ports of ASEAN countries as an example, the feasibility of the model and solution method is verified. The results show that the model constructed in this paper and the solution method used can solve the practical problems better, and can solve the more reasonable and efficient China-ASEAN container transport route network through software solution calculation.

关键词： Xiamen-ASEAN Route network Mixed integer programming matlab programming Optimization

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Parking Space Reverse Selection Reservation Model and Reservation Platform Design

International Core Journal of Engineering

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International Core Journal of Engineering 2021年第2期7卷 307-315页

作者： Jingqiu Liu

In view of the continuous increase in the number of motor vehicles and the unreasonable utilization of parking resources, the utilization rate and turnover rate of parking spaces are not high. In order to solve this parking problem, based on the existing parking reservation methods and algorithms, from the perspective of parking spaces, a parking space reservation model based on fuzzy comprehensive evaluation method is established. In the case of insufficient parking spaces, the optimal parking space is selected for the parking lot. Those who make an appointment, use matlab to write an application program to make the calculation model concretely realized. Finally, a WeChat and web parking reservation platform was designed to realize real-time parking reservations. This research is of great significance for improving the utilization rate of parking spaces, alleviating the current situation of road traffic congestion and improving the urban traffic travel environment.

关键词： Parking Space Reservation FAHP matlab programming Wechat Platform Webpage

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Structural geological interpretations from unrolled images of drill cores

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MARINE AND PETROLEUM GEOLOGY 2020年第0期115卷 104241-000页

作者： Chakraborty, Megha Mukherjee, Soumyajit Indian Inst Technol Dept Earth Sci Mumbai 400076 Maharashtra India

Structures hidden at depth can be assessed through drill cores recovered from them. A crucial part of petroleum geology study is to interpret structures from these cores collected from vertical and inclined drilling operations reaching different depths. We deduce analytically ideal structures in unrolled/unwrapped images of cylindrical drill cores. These structures are: (i) orthogonal and conjugate fractures, (ii) single generation periodic folds and type-1 and type-2 superposed folds, (iii) listric faults and (iv) different types of angular unconformities. The sinuous curves as found in unrolled images are not always characteristic of the structures. Therefore accurate identification of structures would require additional information, such as the drill core itself.

关键词： Numerical model 3D co-ordinate geometry Drilling Geometric representation of geological structures matlab programming Structural geology Applied structural geology

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Emotion Detection by Analyzing Voice Signal Using Wavelet

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American Journal of Computational Mathematics 2020年第4期10卷 485-502页

作者： Faishal Badsha Rafiqul Islam Department of Mathematics and Statistics Bangladesh University of Business and Technology (BUBT) Dhaka Bangladesh Mathematics Discipline Science Engineering and Technology School Khulna University Khulna Bangladesh

Emotion is such a unique power of human trial that plays a vital role in distinguishing human civilization from others. Voice is one of the most important media of expressing emotion. We can identify many types of emotions by talking or listening to voices. This is what we know as a voice signal. Just as the way people talk is different, so is the way they express emotions. By looking or hearing a person’s way of speaking, we can easily guess his/her personality and instantaneous emotions. People’s emotion and feelings are expressed in different ways. It is through the expression of emotions and feelings that people fully express his thoughts. Happiness, sadness, and anger are the main medium of expression way of different human emotions. To express these emotions, people use body postures, facial expressions and vocalizations. Though people use a variety of means to express emotions and feelings, the easiest and most complete way to express emotion and feelings is voice signal. The subject of our study is whether we can identify the right human emotion by examining the human voice signal. By analyzing the voice signal through wavelet, we have tried to show whether the mean frequency, maximum frequency and L_p values conform to a pattern according to its different sensory types. Moreover, the technique applied here is to develop a concept using matlab programming, which will compare the mean frequency, maximum frequency and L_p norm to find relation and detect emotion by analyzing different voices.

关键词： matlab programming Wavelet Haar Decomposition Voice Signal Mean Frequency Maximum Frequency Lp Norm

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Progress in Renewable Energy Technologies: Innovation Potential in Latvia

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ENVIRONMENTAL AND CLIMATE TECHNOLOGIES 2019年第2期23卷 47-63页

作者： Suharevska, Karina Blumberga, Dagnija Riga Tech Univ Inst Energy Syst & Environm Azenes Iela 12-1 LV-1048 Riga Latvia

The development of renewable energy technologies (RET) depends on a wide range of criteria and regulations. To evaluate which RET (solar photovoltaic (PV), wind power plants (WPP), hydroelectric power plants (HPP) or bio-energy plants) have the greatest potential in Latvia, the most suitable approach is a multiple criteria decision making (MCDM). The proposed MCDM methodology involves TOPSIS model based on information entropy, which contributes as a criteria weighting tool. The study investigates seven main criteria from technical, economic, environmental and social aspects. Firstly, each alternative country is analysed due to the chosen RET criteria. Secondly, the assessment is extended, comparing specific data with Latvia's MCDM of RET results. The research results show that, according to the best available examples of RET, hydro energy plants still play a substantial role for Latvia, the most promising RET development is based on bio-energy and wind renewable energies.

关键词： Europe-2020 low/zero emission energy technology prioritization matlab programming multi-criteria decision making (MCDM) TOPSIS

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Effect of Physical Parameters on Thermal Performance of Glazed Transpired Collector with Slit-like Perforation

Effect of Physical Parameters on Thermal Performance of Glaz...

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Asia-Pacific Power and Energy Engineering Conference (APPEEC)

作者： Li, Chao Li, Xianli You, Shijun Ji, Min Tianjin Univ Sch Environm Sci & Technol Tianjin 300072 Peoples R China Tianjin Inst Urban Construct Energy Technol & Mech Engn Dept Tianjin Peoples R China

ISBN: (纸本)9781457705472;9781457705465

A glazed transpired collector with slit-like perforation was proposed in the paper, which improved corrective heat transfer coefficient without influence on collector area. Physical parameters on its thermal performance was studied by numerical simulation (matlab programming) and experimental research. Comparing simulated values to tested values of air outlet temperature, there's little difference, proving that the mathematical model was correct and could be used to in-depth study. Taking collected heat and air outlet temperature as evaluation indexes, simulation results showed that larger value of absorptivity of absorber outer surface was better for collector thermal performance, and lower values of emittance of cover outer surface and equivalent diameter was better for collector thermal performance.

关键词： glazed transpired collector with slit-like perforation matlab programming thermal performance

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Design of Optical Collimator System for Vehicle Speed Gun using Non-Imaging Optics

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INTERNATIONAL JOURNAL OF RENEWABLE ENERGY DEVELOPMENT-IJRED 2023年第2期12卷 366-374页

作者： Nhut, Le Minh Pham, Thanh-Tuan Tran, Tien -Dung Huan, Vu Dinh Shin, Seoyong Ho Chi Minh City Univ Technol & Educ HCMUTE Fac Vehicle & Energy Engn Ho Chi Minh City Vietnam Chez Bong Co Ltd Energy Management Dept Ho Chi Minh City Vietnam Myongji Univ Dept Informat & Commun Engn Yongin South Korea

Vehicle speed guns are usually used in normal sunlight conditions (daytime). If we want to use vehicle speed guns in low light conditions (nighttime), the illuminator is needed toprovide sufficient light for thevehcle speed gun to take photos. The illuminator must fulfill two requirements: (i) using the infrared wavelength to ensure that the driver is not startled by dazzling eyes by the illuminator of the proposed speed gun system and (ii) high energy efficiency to make the illuminator compact leading to the use a small battery system to improve the portable of the proposed vehicle speed gun. In this study, an illuminator using a collimator system designed by using non-imaging optics is introduced. LEDs with infrared wavelength are chosen from the library of LightTools(TM), the structure of collimated is designed to transfer the illumination from the LEDs array to a square area of 3x3 m(2) to cover the vehicle to detect the vehicle number plate. The design process is built basedo0 the conseration of optical path length in the Malib program. After that, the designed collimator is simulated inLightTools-v software. The promising results of the simulation in LightTools(TM) show that the collimator can efficiently transfer light from the LED array to the target area with a uniformity of about 70%and optical efficiency of about 80 %.

关键词： Illumination Collimator Vehicles speed gun LightTools non-imaging optics matlab programming

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A Research about any Regional Input N Error Method of Numerical Control Lathe

A Research about any Regional Input N Error Method of Numeri...

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2nd International Conference on Simulation and Modeling Methodologies,Technologies and Applications(SMTA 2015)

作者： Jin-wei Fan Hong-xia Yan Xiao-long Yi Chao Liu Beijing University of Technology

Based on matlab programming on the basis of numerical control lathe, transform multiple input values can be arbitrary area coordinate system error distribution and to study the tool path of nc machine tools, for the developed multi-functional programming software foundation, and explain software compilation process analysis, concise and important. After experimental verification, this method of programming results are accurate and high feasibility, suitable for CNC lathe work error.

关键词： matlab programming CNC lathe Machine tool coordinate system error distribution Software compilation process analysis

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Evaluation of Bus Operation Efficiency Based on Data Acquisition and CCR Model-Take Xi'an City As An Example

Evaluation of Bus Operation Efficiency Based on Data Acquisi...

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作者： Xiangyue Huang School of Traffic and Transportation Beijing Jiaotong University

The article collects the daily passenger flow of 10 selected bus lines during peak hours through the "vehicle investigation",then process the data to eliminate useless data. To support the national "bus first" policy, the operation efficiency of bus routes is evaluated. This essay introduces the DEA index evaluation system to frame out the five influencing factors of road transportation, i.e the line attribute, transportation capacity, passenger feedback, *** bus lines in Xi'an are selected, combined with the known network parameters and map ranging function, using the ratio of input and output indicators of CCR formula, then simplify it to a linear planning model. Finally, matlab programming algorithm is used to determine the efficiency value of each bus line, then put forward suggestions for improvement of the lines that have not achieve effectiveness.

关键词： matlab programming Data Processing CCR Model On-board Survey

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Research on juvenile delinquency prediction based on quantitative analysis

Research on juvenile delinquency prediction based on quantit...

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作者： Qi Li Yanhong Wu Basic Teaching Department Shandong Huayu University of Technology

This paper mainly studies the influence of family,school and social factors on juvenile ***,according to the 30,000 questionnaires and case analysis conducted in various provinces and cities across the country,the opinions of adolescents of three different ages on the three main factors influencing the crime rate are ***,the relationship between three factors and juvenile crime rate is given by establishing a nonlinear regression *** addition,the functional relationship between the three factors and juvenile delinquency is ***,according to the research data and the established relationship model,the corresponding early warning system is established to provide references for relevant legal departments.

关键词： Juvenile delinquency regression analysis matlab programming

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