Advances in Computer Science Research

Based on the practical engineering application, This paper analyses the inverter strategy of SVPMW. Aiming at the refining problem of sine function value table, on the basis of unrefined sine function value table, through additional two-stage filter, the inverting result of the inverter is greatly improved....

Computer management accounting data processing speed and accuracy, data processing program and standardization, automation, improve accounting information timeliness, reliability and relevance. In university financial management, the computer is used to manage finance, and help the financial staff to...

In recent years, e-bike, as a simple, economical and convenient travel tool, has become one of the main modes of transportation for short-distance travel. Based on the resident trip survey data of Zhoukou City, Henan Province, a data set of influencing factors with families as the unit has been constructed....

Aiming at promoting the efficiency of inspection planning and improving the integration between digital measurement equipment such as CMM (Coordinate Measurement Machine) and CAD system, a method of measurement-points distribution based on knowledge in three- dimensional inspection planning was discussed...

GIF image is one of the most widely applied images on the Internet. This article puts forward selective encryption algorithms for degradation mode based on coding features of GIF image and presents encryption effect picture through experience and then analyzes its safety, enciphered data size, format...

The mesoporous Bi-S-TiO2/ -CD was prepared by an evaporation induced self-assembly (EISA) method and photoinduced self-assembly method, and was characterized by UV-vis diffuse reflectance spectroscopy (UV-vis DRS), X-ray diffraction (XRD), Scanning electron microscopy (SEM), High resolution transmission...

This paper mainly researches the combination of scaffolding instruction and flipped classroom model, discuss its applicability. Through the methods of literature review, investigation and practice, this paper analysis the scaffolding instruction theory and flip classroom teaching method systematically...

In saliency detection, almost all the approaches map an image into a graph and assign the saliency value to each element, e.g. pixel, region or superpixel. In this paper, we first utilize a series of image features among superpixels in the support vector machine (SVM) to train linear predicted models....

With the travel rate increasing, Congestion problems have become more prominent. Thus it's essential to enhance traffic capacity, especially for a toll plaza. This paper tries to optimize the merging pattern of vehicles entering into a certain toll plaza .By using cellular automaton and queuing theory...

In this article, how to construct this evaluation system of Regional Innovation in science and technology based on AHP was discussed, and its index weight of the evaluation system was calculated, which aimed at providing a reference for the decision- making and development of related policies in Jiuquan...

Poly-?-hydroxybutyrate (PHB) can be produced by various species of bacteria as carbon and energy storage materials. This biopolyester has attracted increasing attentions as biodegradable plastics not only for its similar material properties to conventional plastics but also for its biodegradable properties....

processing problem of complex and precise parts with small batch and many varieties can be solved by CNC grinding machine. It belongs to flexible and highly efficient automation machine tool, which represents the development direction of modern machine tool control technology. CNC grinding machine is...

Material science is an interdisciplinary field applying the properties of matter to various areas of science and engineering. In this work, we introduce orthogonal vector-valued wavelets with poly-scale, which are wavelets for vector fields, based on the notion of full rank subdivision oper -ators. It...

This paper studies the teaching mode of independent study, detailed analysis of the research status at home and abroad, of autonomous learning, self-regulated learning, teaching mode, teaching mode and the concept of autonomous teaching mode of physical education are analyzed, through the literature,...

In the process of digital inspection for parts by coordinate measuring machine, in order to assess the quality of parts more accurately, while ensuring efficiency, a method of measurement points planning based on structural features was proposed. From the viewpoints of inspection planning, structural...

60 year development history of penology in China can be divided into three stages, namely, establishment and devious development stage, stagnation stage and revival and development stage. During which, researches in terms of penology have achieved remarkable progress, yet also have demerits. Researches...

Rail transit project is system engineering with long construction period which involves different specialties and numerous departments. Project management and schedule control have a great impact on economic interests and social benefits. In this paper, project management model with comprehensive application...

With the development of smart home industry, smart curtain is going to come into the life of people. An intelligent control system of curtain was developed in the paper based on Arduino. Throughout detecting and analyzing the factors that include the sunlight illumination, time, temperature, humidity...

There is a county town called Suichang in southwest of Zhejiang., There are thousands of online stores in this county town which has fifty thousands people. By its unique social organization mode, through electric business platform to realize the ideas of "bring agricultural products into the city" and...

In recent years, part of the new energy industry in China has appeared a certain degree of excess capacity. This problem causes the bottleneck phenomenon, including the mismatch both wind farm construction and power grid construction, lacking the ability to form a complete set of grid, new energy prices...

In this paper, antenna selection at transmitter in Space Shift Keying (SSK) is considered, which conveying information using the bit-determining antenna from two potential antennas. Previous researches mainly focused on information transmission, and the main performance metrics are bit error rate (BER)...

In the building integrated photovoltaic (BIPV) system, the influence of partial shading on the energy efficiency of the BIPV system is large in certain circumstance. Energy efficiency of the centralized system and multi string type system are researched in four typical shading conditions. Results show...

Using MODBUS communication protocol and Labview software platform, through the RS485 communication interface, the display method of NHR1100 single loop digital display function parameters are described in detail according to the serial communication parameter setting device, then realizing the centralized...

The signing of the Regional Comprehensive Economic Partnership (RCEP) will bring greater opportunities to all the RCEP menbers. This paper employs G-L index and selects the data of agricultural products trade between China and other RCEP countries from 1998 to 2019 according to SITC (Rev.3) so as to...

With the increasing of large-scale network and complex structure, the traditional network management modes and means fail to meet the needs of large-scale network management, the distributed network management system is in urgent need to assist managers to complete the daily network management and maintenance,...

In this work, the denitrification performance of a bio-reactor based on nanoscale zero-valent iron (NZVI) coupling autohydrogenotrophic denitrification was investigated. A series of bio-reactors were configured by inoculating and acclimating pure culture capable capable of denitrification. Effects of...

Simulation and collision check are the essential function to avoid the potential collisionin inspection process based on three-dimensionalComputer Aided Inspection Planning (CAIP), especially in the complex parts measuring,which can promote the efficiency of digital measuring equipmentsuch as Coordinate...

Building a harmonious campus is an integral part of building a harmonious society. It is a need for colleges and universities to adapt to social development, implement a people-oriented scientific development concept and cultivate a comprehensive quality of talent. This paper analyzes the necessity of...

Through vissim simulation, we found that if the shape of the merging region is an isosceles trapezoid, the length of the merging region and the length of the straight line after the toll station are longer, the performance is better, but the cost will be increased accordingly. We analyzed the vehicle...

Liquid sloshing in tanks has many important applications in a variety of engineering fields. In this study, based on a CFD solver, a numerical model is developed to study the liquid water sloshing in two- and three-dimensional tanks. The VOF method is used to capture the fluid interface. In order to...

It is believed that many problems of application of CAI method for teaching technical courses still need to be solved by many years teaching practice. With a systematic analysis of the current problems of CAI method including the causes happened and its deterring factors, the CAI procedures of its adjustment,...

Image segmentation is required to be studied in detail some particular features (areas of interest) of a digital image. It forms an important and exigent part of image processing and requires an exhaustive and robust search technique for its implementation. In the present work we have studied working...

In this paper, the range of frequency doubling wavelengths is analyzed through KTiOPO4 (KTP) dispersion research.The best phase-matching angle of KTP crystal for frequency doubling at 1319nm is calculated as well as the effective nonlinear coefficient.Thus the KTP cutting method is determined.In the...

We propose the fractional-order complex Lu system. Based on theoretical analysis and computer simulations, rich dynamics behavior of the system is investigated in detail. First of all, symmetry and the stability of equilibrium points are discussed. In addition, bifurcations with variation of different...

Grouting reinforcement technique is analyzed and designed in foundation pit which were damaged by rainstorm. Heavy rains led to a deep foundation pit are soaked and some slopes were collapse and the foundation of surrounding buildings were sunken. The causes of the accident are analyzed after emergency...

Development of modern information technology has changed the traditional ways of production and business, during which a new business mode has emerged, that is, electronic commerce. With its unique advantages, e-commerce has been widely applied in a short time, which has also generated a group of e-commerce...

Evaluation of inspection features mostly depends on manual operation, and thus lead to time-consumed and error prone. A new method of feature evaluation based on DMIS is put forward in this paper. The typical types of features and evaluations are summarized. The process of feature evaluation based on...

With the progress of science and development of information, E-commerce plays more and more important role in people's life. Affect people's basic necessities of life. However, consumers in the online shopping is just get some virtual information like pictures or some words and so on, there is no real...

The opening of high-speed rail has had a profound impact on China's society and economy, greatly promoted the exchanges between regions, and brought the development of various regions into the era of high-speed rail. This paper selects all A-share non-financial listed companies from 2008 to 2019...

In our previous work, a parallelizing sequential minimization optimization was proposed, where the algorithm was executed successfully but its convergence cannot be guaranteed in some cases. In this paper, an improved version is proposed, which can avoid falling into the endless loops. In the proposed...

According to current situation of college teachers’ physique health, with the help of college teachers' physical examination data, on the basis of physical health evaluation system, using multiple linear regression method, established college teachers' physical health data model, designs and realizes...

With the development of mobile communication technology, there are more and more concern about the mobile cyber security. However, numerous existing authentication solutions have the issues as encryption and decryption keys long, slow, consuming large storage space and transmission bandwidth. This article...

The content of this article is the assessment of the elements and truss structure state of the castle, which will soon be undergoing renovations. In addition to visual assessment was also used semi destructive drilling resistance measurement using rezistograph to determine the state of wood mass inside...

The frame is an important basis for aircraft structural the design improvements and innovation as a whole frame bearing member. Early in the design stage, a large number of samples are used in the collision and reliability test, which not only causes a waste of resources, but also puts a lot of manpower...

With the development of internet and Smartphone, the access to multimedia content (eBook, music, movie, video etc.) has become easier and easier on the mobile phone. Thanks to its good performance, Android mobile phone has attracted more and more people since the introduction of Android OS by Google...

The normal stresses of the coating sprayed on the internal surface of thick walled cylinder, subjected to uniform temperature and pressure change, are determined. The suggested approach enables one to evaluate the normal stresses in the coating and substrate, as well as the interface. The approach is...

Whether knowledge can be transferred smoothly between the knowledge units determines the performance of collaborative innovation. This paper is aimed at find out the knowledge transfer influence factor in the process of University-Industry collaborative innovation to promote the performance of collaborative...

In the virtual reality, render to textures technology was widely used in animation, model making software or engine both have texture baking function. The baking technology can preprocess the virtual reality scene model, the shadow information is rendered into a map in the engine, it can no longer carry...

In order to solve the problem that traditional face recognition scheme was not efficiently suitable for the smart mobile terminal. This paper proposes a Real-time Face Recognition Method based on geometric features and improved template matching. The method is divided into two steps from general to detail...

This paper collected the information disclosed in financial reports of 64 listed high-tech enterprises in 2013 and chose R&D investment as the independent variable and profit margin as the dependent variable. Based on the cross-section data, this paper analyzed the impact of R&D investments on firm performance....

Humanistic quality refers to the comprehensive quality or the degree of development that people have in humanities. In this article,firstly, i will analyze the present situation and the importance of the college students' humanistic accomplishment, and then analyze the social environment, the educational...

In this study, a thermal lattice Boltzmann model is employed to investigate the natural convection in square cavities with power function temperature boundary. The horizontal wall of cavities is adiabatic, and the temperature at the west and east wall is set to constant or a power function. Four cases...

With the development of modern science and technology, information technology has been widely applied to education and teaching with more studies on the integration of information technology and subjects. However, during the implementation and practice, there have been also some setbacks in the early...

A new regional squared centroid method is proposed to design a ranging System adopted MCU, CMOS image sensor and direct laser triangulation method, after analyzing the advantages and disadvantages of the laser triangulation method. And the principle, hardware settings and data processing of this system...

The Canadian S&P/TSX Composite Index is a capitalization-weighted equity index that records the stock performance in Toronto Stock Exchange (TSX), which is the primary stock exchange in Canada. The S&P/TSX is closely monitored by investors and becomes a barometer for the health of the Canadian...

Recently, the game console industry has been developing at a considerable rate. Also, the development of 3D technology is fast and promising. In the present market, there are already game consoles and games providing users with 3D perception. But actually, the technology they used is called non-immersive...

As the use of NX70A flat wagon is becoming more and more widely, it is necessary to study the overlong cargo allowable loading weight of NX70A flat wagon. This paper firstly designs several adverse vehicle operating conditions, then builds the dynamics model of NX70A flat wagon and making simulation...

Formal verification for safety-critical software requirements is used to improve the safety of software system. Model checking precisely verifies the related properties of software system, but there still exist limitations in properties extraction which is traditionally obtained by artificial definition....

DC distribution can reduce the converter link, improve power efficiency, while make renewable energy access convenient, and there is no need to consider the stability of frequency, reactive power and other issues. As a micro-grid power feed part, DC/DC converter’s control method is particularly important....

TRIZ is a theory of inventive problem solving. The most important part of TRIZ is 40 inventive principles. We found that the principles are still described in natural human language, so we try to give mathematical descriptions. And it is discovered the effectiveness in new breakthrough on the principles....

This paper explores the application of the interactive micro-class to the accounting teaching. In this paper, an interactive micro-class teaching mode is designed for Accounting Information System for accounting undergraduates. How the interactive micro-class is made is analyzed and discussed at an attempt...

The study is the general research project of science and technology of Liaoning Province in 2014, is the provincial science and technology research project. The purpose of the study is to protect the good ecological environment and manage and restore the damaged areas of the Dandong area. The study has...

With the rapid development of the internet, the excessive information of user and item leads to user-item rating matrix becomes bigger and more sparse, also, accuracy of the traditional collaborative filtering recommendation algorithm gets lower. So in order to improve the precision of recommendation...

Material science is an interdisciplinary field applying the properties of matter to various areas of science and engineering. Frames have become the focus of active research field, both in the -ory and in applications. In the article, the binary minimum-energy wavelet frames and frame multi -resolution...

In this era of rapid change, quality education has become a trend.It takes ten years to grow trees,but a hundred to rear people. According to the growth stage of the students, target to carry out the relevant boutique projects.In the activities of education and guidance work is conducive to the growth...

It will bring us opportunities for the professional development of colleges and universities thanks to the reformation of college entrance examination mode. The "1+2+1" college enterprise mdoe could be put forward through the investigation of the professionals needs of the car services of society and...

In view of such problems as halo and color distortion for the traditional Retinex enhancement algorithm, an improved Retinex image enhancement algorithm based on bilateral filtering was proposed. In the HSI color space, firstly, the gamma correction was utilized to adjust the brightness of the image....

The era of the digital economy has promoted a new round of globalization driven by digital technology, and digital innovation will affect the business model of enterprises in all aspects. This paper uses computer language technology to mine the annual report texts of 280 listed companies in the information...

This study investigated the reaction characteristics in a pulse detonation engine, including pressure, temperature, compression ratio, sonic velocity, and detonation velocity, using CEC code and STAR-CD. The former was used for the calculation of equilibrium states, whereas the latter was used for the...

In this article we consider the general problem of utilizing both labeled and unlabeled data to improve quantile regression accuracy, and derive a nonparametric algorithm to compute the entire regularization path of the quantile estimator. We transform the optimization problem of the proposed approach...

As a new teaching means, multi-media music teaching system has been applied to music education since 21st century. From the application and analysis of various courses, we have witnessed great changes in teaching brought by multi-media technology. Compared to traditional teaching method, music teaching...

This paper is concerned with the stability analysis for impulsive stochastic high-order Hopfield-type neural network with time-varying delay. Utilizing the Lyapunov-Krasovskii Functional, some new conditions for ensuring asymptotically stability of the neural network are devised. Numerical examples show...

Flipped classroom depends on the development of information technology and innovative teaching concepts. It reverses time and space of teaching and learning of traditional classroom and induces deep reform of teaching concepts, teaching objectives, teaching methods and interactive mechanism, etc. The...

It is introduced in this paper the principle of wavelet de-noising, wavelet base, the choice of wavelet decomposition level, the wavelet threshold selection for signal de-noising effect is analyzed. Matlab software for simulation study is made on the wavelet noise reduction; In the seabed sediment acoustics...

In this paper, we introduce a class of vector-valued four-dimensional wavelet packets according to a dilation matrix, which are generalizations of univariate wavelet packets. The defini -tion of biorthogonal vector four-dimensional wavelet packets is provided and their biorthogonality quality is researched...

With the rapid development of Internet technology and wide application, the smart home system based on Internet of things technology application was born. With services for the design scheme for drive, designed on the basis of the Internet of things technology of intelligent household design scheme,...

The boundary element method (BEM) using collocation with constant elements has been adopted to calculate the insertion loss of a sound barrier in a two-dimensional model. Analysis has been done on how the results obtained with BEM are affected by the numerical integration accuracy. First, the precision...

To process the fog and haze image,a local histogram equalization based on distant scale factor interpolation method to deal with the blocking effect was proposed .In this paper,We analyzed the basic features of the haze image,that is, low brightness and low contrast. And then,for these features we choose...

The cracking moment in negative moment area of the composite beam can solved by analyzing the strain difference between the steel beam and the concrete. The influence of shear slip between the steel beam and the concrete was considered to control cracks of the concrete more accurately. Verifying the...

This paper designs a kind of three dimensional reconstructions based on line structured light vision system. This system can realize the quick requisition of the contour point on the surface of mechanical parts, which commits precise measurement of mechanical parts. First of all, the measurement model...

Technology forecasting plays a fatal role for enterprise survival and development. Technology maturity of thermostat is predicted with the TMMS and patent data algorithms. Radar plot is drawn to indicate the evolutionary potential for the further improvements of thermostat. It is pointed out that thermostat...

A security management mechanism with white list is proposed based on trusted computing technology. The mechanism runs dynamic measurements to verify their integrity when the software or the program starts, which is an active defense mechanism based on trusted computing technology. It can effectively...

Live commerce has become an increasingly important sales channel under digitization. Live commerce, as a form of digital platforms, has three main characteristics: entertaining nature, no equipment restriction, and frequent huge discounts. But whether features of live commerce work well with luxury brands...

With the development of the economy and the maturity of the network market, more and more people book hotels and tickets online. When the customer book hotels online, online reviews play an important role in consumer booking decision. Despite researcher's attempts on examining different aspects of online...

In recent decades, a lot of quality and design problems of urban footbridge appear, these bridge problems often causes traffic jams and different traffic accidents, more serious bridge problem will cause certain people casualties. This paper uses universal finite element software ANSYS to establish three-dimensional...

Oil in water drilling fluid is a suitable water based drilling fluid for horizontal well, because of good lubricity, liquidity and borehole stability. Optimized and matching emulsifiers, in the2:8 ratio of oil to water, the emulsifiers OP-10+SP-80 ratio of 3:2 is the best effect of emulsion stability,...

Based on the concept of MDS, the interactive evaluation system is established to help the process of product development among products, dialogue between product and user, understanding, building a hierarchy, the level of cognition. Through the setting of cognitive standard, single dimension, basic dimension,...

Spatial orientation ability refers to the ability of people to judge and understand their attitude, position and movement in space. Weak spatial orientation is an important reason for flight safety. At present, the domestic and foreign training of flight personnel spatial orientation is mainly used in...

Pellet has advantages of convenient transportation and improving powder performance, so it has been widely used in biomass-energy , feed industry, fertilizer and waste disposal industry. Low pulverulent ratio is the main target of high quality pellets, therefore FEM method was used to predict the influence...

The development of science and technology promotes the development and updating of computer science and technology, which meanwhile also expands its application range. What’s more, with the continuous development of computer science and technology, its application in terms of engineering construction...

The intention of this thesis is to explore the concrete realization method of reverse engineering technology in the field of development of sports shoes, how in the rhino software environment, reverse modeling two-demention drawings from product, especially how to generate 3D reconstruction of product...

In cpu design, the register file is a necessary device which save the instruction and data. In this paper, we propose a design method for multi-port register file design in the environment of single-cycle CPU system based on the MIPS instruction set and according to the characteristics of multi-port...

Plating factors of graphic design of copper patterns and plasma pretreatment of dry film were investigated to find their effects on bottom-up plating quality of copper pillars. The thickness of copper pillars is examined using scanning electron microscope. John's Macintosh Product software is used to...

Fischer Technik is a high-tech engineering assembled model. It is an ideal teaching aids for demonstrating scientific principles and technological processes. The main components of Fischer Technik are high quality nylon plastic with accurate dimensions; you can repeat disassembly without affecting the...

People nowadays ask higher requirement on timeliness of information, and it is not enough to get information in a fixed place while sky rocketing people expect to get important information anytime and anywhere. The emergence of mobile information processing or mobile computing aims to achieve this goal....

This thesis conducted a comparison analysis via an experiment on clutch pedal effort hysteresis response characteristic in accordance with oil line characteristic which makes up the drive system in automobile clutch. Clutch drive system experiment Jig was composed and used in comparison analysis of response...

According to analyze the identity of ocean wave, the theory of wave energy spectrum was used to compute the wave elevation in some sea state. Based on establishing ship motion equations, the strip theory of the ship was used to simulate ship motion in different situation. The result showed the change...

In order to effectively restore the motion blurred images, this paper analyzes the point spread function (PSF) under the uniform linear motion module and simplifies the PSF into binary function constituted of blur extent and blur direction. The paper adopts the direction of differential operator based...

Contemporary college students are gradually becoming mature groups. As a special consumer group, their consumption behavior directly reflects their consumption concept and value orientation. Whether their consumption concept is scientific and reasonable has an important effect on whether they can form...

MOOC is a big open online courses. At present, the development of the MOOC is very rapidly in various countries. MOOC platform is continuously advancing in some colleges and universities. In this article, the MOOC is carried on the simple introduction; MOOC development present situation is analyzed;...