Advances in Computer Science Research

This paper explains the application of the net present value rule to actual investment scenarios. Examples are given of how the NPV rule can be used in actual machine production to help investors decide the best time to sell in a single or repeated investment scenario and thereby maximize the benefits....

As for China, since the reform and open, domestic industries have shown a quite obvious tendency of agglomeration, which catches the attention of both economic researchers and policy makers. However, although it has been proved by the previous researches that China's opening up to the outside world promoted...

Different numbers of terms and texts of training set are involved to optimise the performance of sentiment classification for Weibo repost. The experiment utilises CHI-square test to extract terms and uses support vector machine (SVM) to classify the different sentimental categories. By measuring the...

With the development of information technology and network technology, accompanied by a large number of leisure food enterprises into the industry competition, how to enhance the competitiveness of enterprises is to think about the topic. This article takes small and medium-sized leisure food enterprises...

This paper first defines the concept of the power big data and intelligent marketing, and then describes the status of power marketing in developed countries such as the United States, Japan and Britain, and then analyzes the pressure the traditional marketing mode of traditional power of China is facing...

To the question of test point selection in test or diagnosis for complex electronic equipments and large scale circuit, a test point selection method based on circuit topology and correlation modeling is proposed. This method, firstly, established the topology model based on circuit function structure,...

The UML modeling technology is a kind of common graphical modeling language in the object-oriented development, which is in good graces of a majority of technicians for its well-defined, expressive, powerful and widely-used feature. With the development of the society and the progress of various mechanical...

In this paper, an intelligent charging system which is based on single-chip microcomputer system is introduced. The hardware and software realization of intelligent battery charger based on MCU are presented. The charger studied in this paper has higher practical value and accumulates a lot of practical...

The so-called humanistic spirit is the affirmation of human existence value, is the reason why people become a symbol and carrier of human spirit. Art is the external reflection and expression of the human spiritual world in some form. Art can reveal human dignity, emotion, happiness and freedom, and...

In recent years, science and technology have been widely used in the development and construction of various fields, among which computer network technology has achieved good results in a short period of time and is more important for people's lives and work. Computer network technology in the process...

The gamma spectrometer is a radiometer that measures the gamma ray energy distribution and radiation dose. It is an important nuclear science physics method. It is one of the main methods to solve the problems of the earth sciences, environmental sciences and other issues. In this paper, virtual instrument...

In view of the low gain and single frequency operation of common microstrip antenna, a novel dual-band microstrip antenna which is fed by microstrip line is proposed in this paper. Using software HFSS to simulate and optimize it, the antenna can work at two bands which are 3.25-3.35GHz and 4.31-4.42GHz.The...

Several machine learning algorithms have been proposed in recent years to design accurate classification systems for a wide range of diseases such as cancers, hepatitis, and coronavirus. In this study, the Classification and Regression Tree (CART) is proposed to predict breast cancer in the early stage,...

The present study discusses on the solute dispersion in a blood flow through an inclined artery with the presence of chemical reaction. The blood flow is considered to be laminar, incompressible and steady flow of Bingham model. The continuity and momentum equations are solved in cylindrical coordinate...

As the core driving force spearheading the new wave of technological transformation, artificial intelligence is profoundly reshaping the ecosystem and development trajectory of vocational education. To systematically grasp the research landscape in China's intersection of AI and vocational education,...

With the popularity of computer technology, anyone can now upload data resources on the Internet today, which means that the authenticity of data information collected in ordinary browsers is not well guaranteed. Nowadays, the accuracy of only using the browser to query the data is not high. In order...

Nowadays, the proportion of Chinese short text gradually increases in the Internet information. Without the division on the length of text, indexing and retrieval of traditional full-text retrieval system result in low efficiency. Oriented to short text application scenarios , we designs overall three...

For the sparse features of the microblogging text, the author proposes a method of microblogging text classification based on the features extension by Word2Vec. We train the text by using Word2Vec tool and find the words which are similar to original features semantic as the features of short text....

The non-negative matrix factorization (NMF) algorithm is a classical matrix factorization and dimension reduction method in machine learning and data mining. However, in real problems, we always have to run the algorithm for several times and use the best matrix factorization result as the final output...

As there are an increasing number of 3D models available on web, it is necessary to develop a system to help people find and get them. In this paper, we propose a system for content-based retrieval of 3D models on web. Users can submit an example 3D model to the retrieval system, and it will return a...

The development of the Internet of things has put forward new requirements to the data processing capacity, and outlier detection has found an increasingly wide utilization in the field of data mining. The accuracy of the outlier detection algorithm based on Euclidean distance in the high dimensional...

Text localization is a crucial course for image processing. In this paper, an algorithm for text localization based on Complex Nonsubsampled Shearlet transform (NSST) is proposed. Complex NSST is implemented by a projection followed NSST. The Projection operation converts the input image into its analytic...

In a designated verifier signature scheme, only the designated person can verify the validity of the signature. Due to such attribute, it could be used in many fields such as financial payment system, e-voting, and e-taxation. Recently, Lee et al. proposed an identity based signature scheme to overcome...

XML has become the standard of data representation in the science and business application and standard of data exchanging among applications in Web. Driven by the demand and technology, various database vendors extend the function of XML. This article introduces an application system in the computer...

Cultivating objective of public security colleges is to transport high-quality probationary police officers with strong skills to front line of national public security, judicial and safeguarding departments. For young teachers undertaking the main teaching tasks, their teaching ability directly influences...

To improve the detection performance and detection speed of wideband spectrum sensing algorithms with little priori knowledge, a scheme of cooperative wideband compressed blind sensing without reconstruction based on higher-order moment (CWCBS-HOM for short) is proposed. The test statistic is extracted...

In this paper, the characteristic of radar clutter spectrum is studied in reverberation chamber (RC). The similarity between reverberation chamber field environment and radar clutter environment and the feasibility of simulating radar clutter environment in reverberation chamber have been analysed. A...

To reduce active relays in peer-to-peer relay networks, a sparsity promoting penalty term is introduced into the objective function to obtain beamforming weights through minimization of the total relay transmit power while the signal-to-interference-plus-noise ratio (SINR) at the destinations are guaranteed...

This thesis firstly analyzes the tendency of interactive development of Yangtze River Delta city circle tour under the perspective of regional integration and draws a conclusion that “regional tourism” and “tourism regionalization” have continually developed in the Yangtze River Delta city circle. Then,...

The article studies dynamic of the Index of social feeling in Siberian region and its linking with modernization processes in Russia. The empirical base of the research was founded with the use of public opinion polls, which were provided in 2011, 2015. The research is complemented with the regional...

In this paper, a novel capacitive pressure sensor with large dynamic range is presented. The working principle and the design structure of the sensor are demonstrated in the paper, then the theoretical calculation of mechanical properties, capacitance and the simulate results are performed. The study...

In the design of millimeter wave E plane waveguide filter, E-Plane septum modeling and analysis is a key link. Accuracy and speed of modeling method will greatly affect the design of filter. It is proposed to use support vector machine (SVM) to the accurate modeling of E-Plane septum. Compared with the...

On the basis of mirror reflection characteristics, the article analyzes the relation between the space plane that rotates about a point and reflective light change, designs mirror reflection and orientational irradiation automatic tracking control model, establishes signal conversion equation, drive...

In order to further improve the seismic performance and stability of civil engineering, as much as possible to reduce the economic losses caused by the earthquake, so, improve the structure of civil engineering structure seismic capacity should be further researched by relevant staff. Based on the actual...

In this paper, mechanical properties of magneto-rheological(MR) fluid is compared with MR fluid which is added by graphene. We mix the MR fluid with graphene oxide (GO) by 0.33% mass fractions (G33). Adding the graphene into MR fluid has an effect on the viscosity. Furthermore, MR fluid largely changed...

The widespread and rapid development of wireless communications and mobile devices has made government service methods different from before. The government is also constantly improving its service methods to provide better services to citizens and the government. This is precisely the case, with the...

According to the application of bearing roundness measuring instrument in the field of bearing production, and developing a control system of the bearing roundness measuring instrument based on CPAC. The system adopted that CPAC as hardware platform combined with Otostudio as software platform to modular...

Double channel forming machine opening quality data by sampling and conversion into the mining of association rules based on Apriori algorithm, correctness verification and quality deviation setting parameters, makes the equipment in adjusting the parameters set to drive the delivery index get reliable...

In today’s digital world the dark web has transformed cybercrime by creating spaces where traditional forensic techniques are unsuccessful due to encryption and the absence of obvious digital evidence. This research states the concept of forensic tranquillity, the unique investigative obstacle posed...

Motion planning for robots is a crucial technology that enables autonomous navigation and the performance of complex tasks. Traditional methods have problems like low efficiency and poor adaptability in high-dimensional spaces and dynamic environments. In recent years, machine learning methods, including...

Based on the theoretical perspective, this paper examines the relationship between intellectual property protection and technological innovation in developing countries or regions. Based on the technology spillover under closed economy, this paper constructs a Cournot competition model based on sub-game...

In order to increase the efficiency of system dynamic modeling and simulation, the order reduction method of system dynamic equations based on vector bond graph is proposed. Based on system independent energy storage field, resistive field, source field and junction structure, the different unified formula...

The work presents the knowledge base of the expert system of the aggregate assessment of the level of industrial safety at a hazardous production facility, based on the use of the logico-axiological approach. The fundamental hypothesis: the reduction in production safety is due to the presence of "NE-factors":...

Due to the limited energy, memory space and processing ability on wireless sensor nodes, the batch learning method will be infeasible for larger number of samples or sequence samples. This paper focuses on the incremental learning method for kernel machine by involving L1 regularized, a novel incremental...

An object oriented change detection algorithm for multi-temporal remote sensing image is proposed in this study. Bi-temporal remote sensing images are firstly processed by multi-scale segmentation. Then similarity between the target object and its neighboring object is calculated by using a formula of...

On-line signature verification is one of widely acceptable biometrics. Dynamic time warping (DTW) is a nonlinear optimization method, which is widely used in on-line signature verification. DTW provides a computational technique of normalization and alignment to make best matching between two signatures,...

A low complexity carrier phase estimation (CPE) algorithm for 16-QAM systems is investigated in this paper. In the proposed CPE algorithm, the QPSK partitioning scheme is adopted to divide the symbols into three classes (C1, C2 and C3). The symbols in C1 and C3 are used to achieve the coarse estimation...

For the problem of the safe integration between Internet and the smart grid, a server based on C/S mode of fingerprint information and user information registration was used in power system and a fingerprint acquisition system based on C/S mode was designed, realizing the collection of fingerprint image...

The crop growth cabinet control system mainly consists of color touch screen interface operating system and control system. They communicate with each other through the RS485 module. The control system's control core is ATmega128L single chip microcomputer, and operating system interface uses Cortex_M3...

Flooding and landslides are significant destructive natural events to infrastructure and human life. Segmentation of affected disaster areas in satellite and aerial images has an important role in an effective response and mitigation of disasters. This paper suggests a deep learning approach, specifically...

Categorical data clustering has attracted much attentions recently because most practical data contains categorical attributes. The k-modes algorithm, as the extension of the k-means algorithm, is one of the most widely used clustering algorithms for categorical data. In this paper, we firstly analyzed...

It is important to develop the micro-electro-mechanical system (MEMS) fabrication technology based on polymers. Liquid crystal polymer (LCP) is a suitable substrate for fabricating the flexible MEMS array antenna applied to conforming and bending conditions. This paper presents the metallization process...

In the present research work, the multi-enzyme polypeptide carbamoyl synthetase-aspartate transcarbamoylase- dihydroorotase (CAD) was used as a novel biocatalyst to catalyze a multi-step reaction in a unitary reaction medium. Using organic solvent as reaction medium, we have observed formation of the...

The study of pricing method of auto production has very important significance to analyze auto market and make strategic decision. The paper considers the current research status of pricing method of auto production, analysis the factors which influence the price of auto production, and proposes GM(1,N)...

The constitution of china is experiencing from forming a socialist legal system with Chinese characteristics to build socialist constitutional system with Chinese characteristics, the center is changed from legislation to constitutional implementation. China changed its position from a legal state to...

This paper presents a design of parking space intelligentmanagement system based on visual identification which combines visual image processing technology and intelligent management systems.In the system, visual processing technology is used to extract the vehicle information such as parking spaces,...

The emergence of the Internet has changed the way of graphic design, from the practical design based on the entity to the virtual network design, from the plane and static design to the multi-dimensional dynamic design. The change of the over-all environment has improved people's demand for visual performance...

To support the development of smart grid and demand-side management, this paper designs and implements an efficiency management terminal based on demand response, which can be used to assist users to actively participate in the "Grid - Load" Interaction. First, this paper elaborates the hardware composition...

Virtual laboratory is an application of virtual reality technology in the field of experimental teaching. Compared with the traditional on-site experiments, virtual laboratory performs experimental applications without limitation of space and time. In this paper, a web-based virtual laboratory of mechanical...

Recently, various systems of tracking the direction of a person’s gaze have been of great interest. As a rule, these systems have a complex structure, and also use additional sources of illumination. This article discusses eye tracking methods, and proposes a method for tracking and determining the shape...

As a national strategy, Characteristic Town has become an important carrier for promoting new-type urbanization and structural reforms on the supply side. However, the shortage of funds severely restricts the development of Characteristic Town. This paper discusses the introduction of the PPP financing...

The introduction of 5G network technology has not only provided a significant boost but also a solid foundation for the advancement of the Internet of Things (IoT). In the future, the 5G IoT promises to realize the full potential of IoT in society. The emergence of 5G has revolutionized the landscape...

The impacts from different environmental factors on CO concentration are studied based on FLUENT numerical simulation. Under different wind velocities, environmental temperatures, and super hydrostatic difference, the distribution of CO concentration inside the tunnel is analyzed. The result is that...

With the rapid development of computer network technology and the popularization of Internet, resident's living standard has been increasingly improved. People have higher requirements for residence as well as residential community, and the smart community has just met people's new demands. Besides,...

A single-balanced mixer is designed by using the Agilent ADS software. Bat15-03w diodes(Infineon) are used and the insert loss is less than 1.4dB. The conversion loss is no more than -19.5dB and noise figure is lower than 10dB, when the RF frequency is 2. 4GHz and the LO frequency is 2.3 GHz. The PCB...

This paper broadly outlines the task of evaluating the risks associated with planning when tackling the issues of choice and planning in productive-and-economic systems to implement the projects resulting from the application of criteria-based approaches, as well as the task of evaluating production...

Music class is a required course in junior high school education. Read music is an essential tool for students to learn music. The effect of read music teaching will directly affect the students' music quality. This article through the questionnaire survey of Baoding city middle school students understand...

Nowadays, the map-search technology is frequently used by people. However, present map-search service can hardlysatisfy people’s growing demands. Providing multiplex service support in search service, such as intuitive search results and multi-keywords search, has become a research focus. This paperproposes...

With the technical advances of wireless sensor networking and smart mobile device, the demand for position information of pedestrians (especially in the indoor environment) has increased remarkably. In this paper, we proposed an indoor localization approach based on received signal strength (RSS) and...

In order to study the characteristics of double spectrum radio signals, based on higher order statistics and the double spectrum definition and properties, using two kinds of direct and indirect spectrum feature extraction algorithm, and two kinds of radio signal spectrum estimation is simulated. Therefore,...

Through the research of the demand for secure communication between traffic recorder and data management platform, a three layer automobile remote diagnostics communication model which contains data aware, network access and application service is proposed, through special access gateway to add device...

Translation is a cultural activity, which is influenced by many social and cultural factors. Here we want to study the translator's dual cultural identity, the specific status and status of national literature, and the choice of translation strategies. Language is the carrier of culture, culture is the...

Most of audio players on the market use the hardware filter oAbstract. A multifunctional portable temperature control box based on semiconductor refrigeration technology is designed in order to meet the low and constant temperature requirements of space, military, medical, biological products and so...

Throughout the history of human development, every technological change has a great impact on our production and life. The Internet occupies the core position in the new technological innovation, and its development will inevitably have a huge impact on our life. The "Internet plus" is a new form of...

In Direct sequence spread spectrum (DSSS) communication system, the auto-correlation of Pseudo-Noise Code is weak while the auto-correlation of Narrow-Band Interference (NBI) is strong, so that the NBI is more predictable than the DSSS signal. The principle of time-domain anti-interference is the auto-correlation...

Dynamic matching between inspect resources and business processes in digital inspect and MBD (Model Based Definition) environments is a challenging problem. This paper present an approach of building a digital inspection management model based on process-resource dynamic configuration system. Furthermore,...

Mapping huge jobs onto cloud resources is a part of workflow scheduling, which increases scheduling effectiveness. Numerous researchers have been working hard to enhance the efficiency of scheduling in cloud computing as a result of this piqued interest. Scientific workflows, on the other hand, are huge...

The freshwater available for direct human use is extremely scarce compared to the total amount of water on Earth. Most of this freshwater is located in freshwater lakes. As human civilization progresses, the ecological destruction of freshwater lakes has become increasingly common. Drones have become...

Innovation is the inexhaustible driving force for social development and the soul of national prosperity. Design is a creative activity with human wisdom. Innovative design helps people stand in the present and face the future, and identify the development opportunities of design. Futurology explores...

Most of the small hydropower has no power regulation capacity, which affects the operation of the power grid. By analyzing the average daily output characteristics of a single small hydropower station, it found its power curve quite different. The small hydropower in the similar geographical environment...

The college computer basic course is compulsory course for students of all majors. With the rapid development of information technology, in order to adapt to the demand for talents from the perspectives of social, economic and technological development, it is quite significant to further enhance the...

Based on the principle of conservation of energy, a dynamic heat transfer model is developed. a two-dimensional fuzzy controller is designed to control chilled water flow and chilled water inlet temperature after analyzing the model, so as to achieve the purpose of adjusting the supply air temperature....

Aims at the problem that the current polar projections are not completely suitable for polar nautical chart plotting and using, and combines with the existing chart plotting and using methods, the paper proposes the idea of choosing Equidistance Cylindrical Projection as the projection of Polar Chart,...

The motion control system of micro EDM CNC milling machine tool which base on the motion control card was designed in this paper. In order to guarantee the processing precision, the discharge gap can be adjust by the analysis and processing of the average gap voltage get through the discharge detection...

This paper proposes a method for retrieving CAD models of mechanical parts by free hand sketches. Two shape signatures is proposed to describe the geometry and the topology of a CAD model respectively. A relevance feedback mechanism is introduced to combine the two dissimilarity distances measured by...

Personalized recommendation technology is the core and key technology in the electronic commerce recommendation system. Data mining technology can help decision makers to find out the potential relationship between the data and find out the potential relationship among the data. This paper firstly analyzes...

Magnetic Resonance Imaging (MRI) technology has developed rapidly in recent years, and has been widely used in various fields, such as medicine, physics, chemistry and biology. The principles of MRI involve electromagnetism, nuclear physics, quantum mechanics and many other disciplines. In addition,...

Bit extraction method from chaos sequence was proposed in the paper to realize image communication secretly. The cipher comes from nonlinear chaos iteration by seeds and processing of bits transformation matrix. First, the principle of image encryption keys was described, the cipher sequence features...

The proposed method deals with the joint use of the textural features and the image edge by the remote-sensing images.A definition of an adaptive segmentation algorithm is considered.Based on LBP features detecting,the textural information associated with each cell images is extracted as the set of connected...

Convolutional neural network is a kind of deep learning model, but it only act on a single image generally. This paper expands the convolutional neural network, studies common spatio-temporal features detection and extraction algorithm, proposes a model for detecting and extracting spatio-temporal features...

High altitude platform station (HAPS) is a new means of wireless communication method, which operate in stratosphere whose altitude is about 20km. In order to improve the channel quality of wireless communication transmission and signal-to-noise ratio.The wirless communication network of HAPS are studied...

This study aims to explore the influence between addiction and Lying flat in the context of digital media, and provide theoretical and practical enlightenment for the construction of digital society and enterprise management. In this study, 521 people were tested by questionnaire, and the collected data...

Aiming at the performance degradation of steganalysis model caused by unbalanced sample data set training, a model design method based on improved SMOTE algorithm and Focal loss algorithm is proposed. The improved SMOTE algorithm is used to synthesize new samples to balance the data set. At the same...

Base on the sample of A-share listed companies of Shenzhen in China from 2007 to 2012, this article uses the random effect model to examine the impacts of managerial compensation on overconfidence and found that: managerial compensation has a positive effect on their overconfidence. Compared with non-state-owned...

The report considers an algorithm for solving the problem of advance evacuation of the population, which is formulated as finding the shortest path in a linear network model representing the routes of movement along the existing transport network of roads with a cycle. The starting point is the prefabricated...

In order to improve the reliability of redundant CAN bus communication network, in this paper, a dual CAN bus redundancy communication system based on DSP is designed. In the hardware, a dual CAN redundant interface circuit based on TMS320F2808 chip is designed; in the software, a dual CAN bus communication...

In this article, we refer to literature and review the function of network information resources and conclude the current evaluation of network information resources. Based on these works, we developed a three-layer network information resources with 25 evaluation indicators of 4 parts and did detailed...

at present, most of the digital circuit transient fault repair methods need to be completed by manual processing, the repair efficiency is low and the energy consumption is high. For this, put forward a new kind of digital circuit fault transient low energy self repair method, design a repair system,...

Breast cancer is a deadly illness affecting women worldwide which makes early and precise identification is crucial. To increase diagnostic accuracy, this work presents a dual strategy that integrates deep learning (DL) and machine learning (ML) algorithms. Random Forest model is used to examine tabular...

This study investigates Q-learning-based autonomous navigation technologies for robots operating in dynamic environments. The research integrates reinforcement learning with perception systems to improve obstacle detection and path planning capabilities. Hybrid frameworks combine Q-learning with global...