Advances in Computer Science Research

An overlay network based traceback scheme against DDoS attacks is proposed in this paper. A CAT server is set in each ISP domain, and receives the alert packets from routers in the domain. According to the alert packets, the intra-domain attack tree is constructed. An alert will be sent to the victim...

As a common problem of multi-core parallel programs, the problem of data race has been paid more and more attention in recent years. In this paper, a dynamic detection approach for data race problem detection is proposed. By introducing a new metadata storage based on the buddy memory allocator, the...

The research of text similarity, especially for rumors texts, which constructed the calculation model on the basis of known rumors and calculated its similarity. From which, people can recognize the rumors in advance, and improve their vigilance to effectively block and control rumors dissemination....

Cable is an essential component of Electric Power Secondary System. Due to the low voltage power cables lay with communication optical cable in the same trench, while low voltage power cables working current is high, communication optical cable suffers huge incidents potential of fire accident. This...

A novel strategy for combatting ransomware has emerged, aiming to circumvent the limitations of traditional antivirus software which ransomware often evades. Ransomware, by encrypting files and restricting user access to systems and data, poses a significant threat. The proposed solution involves a ransomware...

Analyzed and quantified the low carbon supply chain carbon emissions by using life cycle method, analysis of all aspects of the decision factors, cost and carbon emission index, considering the cost targets and carbon emissions, a multi-objective mixed integer programming model is established to solve...

For the problem of low accuracy of temperature monitoring system, this paper proposed a multi-sensor data fusion algorithm applied to plant factory temperature monitoring system. First, Dixon criterion was used to eliminate the gross error in the measurement data, then the temperature data fusion value...

In order to solve the problem of aluminum piston deburring, in the special deburring machine adopts the drum wheel unit as a clamp, slot wheel mechanism as intermittent mechanism, by the brush to remove burrs, through the literature material law, expert interview method, calculation analysis and other...

The data center networks (DCN) leverage redundant physical links to overcome the bottleneck of traditional tree topology and achieve high bisection bandwidth and goodput for cloud computing platform, so how to use these redundancy links efficiently becomes the key factor for routing designer. This paper...

Analyzing the current lack of reliability test design and considering the producer’s risk and consumer’s risk, the reliability test design model for compound system (CSRTD) based on information fusion was constructed. Analyzing the requirements and constraint conditions of reliability test design, the...

The farmers’ land scale has become the main factors of farmers’ income. In the background of the financial support, the willingness and behavior of farmers to land transfer has a significant impact on the scale operation. Based on research data, through logistic regression models this paper explores...

Through the analysis on the characteristics and demands of the online teaching platform, the web-based teaching platform based on the mobile internet is established. Analysis and test on the performance of the online teaching platform has been carried out. The test result shows that this platform can...

The basic principle of impedance-matching balance transformer (IMBF)is introduced, the impedance matching conditions and current vector are given. Using ANSOFT finite-element simulation software for transformer modeling and simulation, the simulation results consistent with theory, shows the validity...

This paper first gives an analysis of the static structure and dynamic process of folding table, gets corresponding folding process parameter equation by geometric relations, and quantifies parameters respectively for different design requirements of desktop. The desktop projection just falls within...

Support Vector Machine (SVM) is an important statistical machine learning algorithm, among which SMO algorithm is one of the effective application methods. SMO algorithm decomposes the problem of support vector machine into smaller problems to minimize the sequence. Through the introduction of SMO algorithm...

A polarization hopping wireless communication system is proposed, the matching relationship between polarization hopping sequence and polarization states of antennas is designed, and a synchronization acquisition scheme is put forward for the proposed polarization hopping wireless communication system....

In the operation process of the toll road industry, compared to cash flow and logistics, information flow plays a more important role. It runs through every link of the industry value chain and provides guarantee and support for the increase of the additional value of value chain. From the perspective...

As urbanization accelerates, China's traditional villages are facing multiple challenges, including weakened cultural identity, ecological destruction, and social structural transformation. As a region characterized by both cultural diversity and ecological sensitivity, the heritage protection and...

With the development of cloud computing and big data, technology has entered the era of big data, big data mining and intelligent applications are the hot spots of current scientific and technological research. This paper describes the background, features of big data development etc., combines the characteristics...

Along with our country has gone to the information era, economic and comprehensive national strength is constantly growing stronger, library and information sciences and records management disciplines are developing. Differentiation and integration have become the ordinary state of the discipline development...

In this paper, we propose an efficient visual saliency detection method based on trajectory clustering. We group the corner point trajectories using a two stage clustering algorithm. The most stable trajectories are pre-clustered using mean shift in the first stage. Then, we proposed an unsupervised...

Through questionnaire survey of students in Jilin Engineering Normal University and analyzing their reading purposes, habits and contents, the paper explores the characteristics of reading status and potential difficulties, analyzes the causes of this dilemma

In the traditional logistics outsourcing contract, inventory and transportation cost is higher, is not conducive to bilateral cooperation. Through this study, the results show that the joint optimization decisions based on shared savings contract mode, the partners and the overall system is better than...

Network assembled structures from a series of macromolecular surfactants were prepared on glass surfaces. When the content of the hydrophobic side-chains was increased from 10 to 90 mol%, the solutions exhibited a lower surface tension. In addition, these solutions ultimately formed thinner and more...

In order to realize the data access service of Android platform for OPC,Analysis of the OPC of Android, developed a data access service system for PLC based on Android platform, described the system architecture, work flow and communication protocol, Implemented two kinds of state data access of the...

Aiming at protecting the space environment such as removing space debris and repairing malfunctioning targets, it is vital importance to measure the pose of space targets. In this paper we propose a high precision pose estimation algorithm based on point cloud. The optimized Random Sample Consensus (RANSAC)...

In the process of urbanization in China, the scale of the city has expanded, and some factories that are harmful are also moving from the center of the city. Therefore, many industrial wasteland, old factories and some waste industrial equipment have been left in the city. Brought a series of social...

The application technology universities developed after the technology universities union building in 2013. In the existing literature, the research about applied technology university is relatively a few, especially for the research about professional evaluation of application technology universities...

The support vector machine model is based on the network security situation has strong randomness, is affected by many factors, and the number of types of network security incidents is uncertain, the reference sample is small, the prediction model of need "intelligent", according to SVM forecast algorithm....

Cyberbullying has emerged as a critical challenge in modern digital communication, severely impacting the psychological well-being of social media users, especially adolescents. Traditional detection techniques relying solely on textual features often fail to capture the complex, multi-dimensional nature...

Bring Your Own Device (BYOD) is a work environment that allows employees to use their devices to access the organization's resources to complete their tasks. However, BYOD has raised some security concerns because it presents organizations with more significant challenges in protecting their data...

With the continuous development of computer digital technology, my country is gradually transforming into a smart city. Urbanparks are important places for people to carry out public activities. The development of high-tech has brought challenges to urban parks and new opportunities. This paper proposes...

In this paper, the SSE Real Estate Index and RMB exchange rate are taken as the research objects, and the approaches and effects of the RMB exchange rate on the SSE Real Estate Index are further explored by means of literature and empirical research. The results show that the RMB exchange rate can boost...

This paper presents a design of automatic STC MCU program downloader based on CH340G USB serial converter chip. The user through the host computer to achieve the STC 5V/3.3V MCU to erase, program, check and encrypt. The download device is not required for MCU control, and has the advantages of simple...

Detailed studies about the deformation principles and processing mechanisms of bamboo sheet cell cube are theoretical foundation to realize mechanization, automation and informatization of bamboo products manufacturing, and also the key to develop different kinds of bamboo knit machine. For internal...

The pursuit of life value and good humanistic quality is the essential condition of college students' healthy personality. The goal and positioning of college Chinese teaching based on humanism, with the help of classical chapters focus on the students' spiritual world. Explore the life consciousness...

Iris recognition plays an important role in personal identification. The first and critical step in the process of an iris recognition system is iris segmentation. In this study, several aspects are done. Firstly, the fundamental of Chan-Vese level set is described. Secondly, the process of related parameters...

Graph theory is applied in this paper to optimization design of test point set in circuit board fault diagnosis. The optimal detection node set of a circuit board can be established by a improved node matrix. The improved node matrix can also regenerate topology network graph of a circuit, which reflects...

The requirements of using modern aircraft have been increased constantly, which results in different influencing factors of aircraft R&D and procurement costs. And the original model in the predication for R&D costs appears accretion of estimation especially for the extensive using of advanced avionics...

In the detection process of large random network intrusion signal, the signal detection method is key to guarantee the network security, the traditional detection method is simple, time-consuming, and the error is big, the detection precision is low. In view of this situation, a ORB wave intrusion signal...

A fast algorithm which can extract pitch period information from speech is described. The solution is developed by processing speech signals using Haar wavelet function. We have shown mathematically that the pitch period of a speech signals can be computed using global minimum of the total energy level...

In the process of the underground space development, the first is the development of underground municipal facilities, marks the beginning of modern urban underground space development and utilization. In order to adapt to urban development and then appears the underground traffic, expanded the contents...

Today in the area of field operations, there is no systematic way to assess and identify if any of the active or pipeline assignments are prone to mishaps, illness, and injuries. Actionable insights are missing from the leading indicators like concern reports, near-misses, or work-stop events reported...

For a class of two order systems with single input and non-minimum phase, this paper uses backstepping design method to design the controller and studies the Euler programming problem. But unlike the traditional backstepping design, this paper did not use the method of hinge compensation, but there is...

The research proposes a module creation method based on AHP which analyses customers’ demands weights in the process of product design. First of all, with establishing the product conceptual structure which correspond the personalized needs of customers and analyzing the similar characteristics of the...

The intent of this paper is to study a new smart methane & solar hybrid power generating system. The structure composition of new smart generating system is firstly introduced. Secondly, the function of each part is analyzed. Then, the principle of new smart generating system is presented. Finally, this...

This paper describes a multi-agent system for monitoring, diagnosis and forecasting the technical system condition with the car as an example. The system consists of four agents: the monitoring agent (collects reports on the condition of the vehicle, handles requests from the user and displays the response),...

With the rapid development of the automotive industry, cars have become the necessary means of transport. Because the automotive production process is complex, multi-species, multi-parts, high quality requirements, the production line management system research is highly necessary. Enterprises through...

The device is based on the principle of gear transmission and the design is to improve traditional paddle wheel drive in which exist defects, by using the synchronous effect of the odd gears, making the ship with propulsion device of a water shifting plate in a vertical state, namely propeller thrust...

With the rapid development of network, all kinds of information systems bring convenience to enterprises at the same time, it also brings more and more hidden dangers to information security. Encryption technology is the core technology of network security technology, which plays an increasingly important...

Compared with other buses, CAN bus has low cost, long data transmission distance and high transmission rate, so it is widely used in the field of automation. In this paper, PLC is used as the master node, CANopen – PROFINET gateway is used as the intermediate node, and the motor driver is used as the...

Shaanxi cultural dialect is very distinctive and is one of the most important manifestations of Shaanxi's unique culture. However, due to the geographical differences, Shaanxi dialects are not the same way each region. Based on the analysis of the regional and historical culture in Shaanxi province and...

Identifying sentiment polarity of a document is a building block of sentiment classification and natural language processing tasks, it aims to automate the prediction of sentiment orientation in a document. In general, recently fast-growing Deep Neural Networks(DNN) method has been extensively used as...

In this paper, the structural characteristics of lifting mechanism of LiuGong CPD30 forklift are analyzed. After detailed analysis and calculation, it can satisfy the controllability and observability discriminant matrix. The structural characteristics of the hydraulic lifting system of forklift truck...

Osteoarthritis (OA) is an all-encompassing, broadly prevalent illness that mostly affects the knee joint. It is a complex progressive disorder leading to loss of articular cartilage, joint space reduction, pain, function loss, and physical incapacity causing deterioration in quality of life. In today’s...

To address the limitations of traditional teaching methods for diesel vehicle electrical systems, this study proposes an integrated teaching model combining three-dimensional dynamic simulation with scaffolded instruction. A 24V diesel vehicle electrical system simulation model library was developed,...

Path planning has demonstrated significant value across multiple fields as the core technology of intelligent navigation of autonomous systems. This review begins by examining the current development status of path planning technology, analyzing algorithmic innovations over recent years, and examining...

In order to fully tap the regulating potential of dispatchable loads (DLs) and to bring DLs into the normal dispatch and operation of the electric power system, research on the "Internet plus dispatchable loads" integrated dispatching platform is needed to provide access interface for the power grid...

An innovative accelerated integral equation method is proposed based on a fast search algorithm for both shared and non-shared faces among mesh elements. This method successfully accelerates the computational process of solving for the tetrahedral coupling coefficients. By using the proposed accelerated...

A kind of high-voltage inverter power supply for electron beam precision micro machining equipment is introduced. The system is based on the current transformation way of AC DC AC AC DC. Its intermediate inverter link is intermediate frequency inverter which is composed of two phase parallel half-bridge...

A multi-chip synchronization system based on diversity technique is presented. As diversity technique in communication, at the master IC chip’s transmitter, two periodic synchronization signals (with a set delay time between them) have been sent as synchronization reference. At every IC chips’ receiver...

Wood was treated with guanyl urea phosphate (GUP) to impart flame retardant. The flame retarding behavior of samples was valued by cone calorimeter and thermalgravimetric analysis. The flammability parameters, including rate of heat release (RHR), total heat release (THR), total mass loss (TML) and mass...

The emergence of H7N9 virus attracted worldwide concerns about the possibility of a new influenza pandemic in March 2013, and the human cases were mainly distributed in the southeast coastal areas in China, and the winter-spring season was the peak period for human infection with H7N9 virus. The studies...

To solve the hybrid flow shop scheduling problems with minimum makespan objective, a local search based on the active scheduling technique was proposed. First, a good initial solution was generated by the NEH-based heuristic. Next, a problem-specific local search was developed to improve the initial...

Gejia is an extremely rare minority ethnic group in China, which remains to be identified. From the perspective of the development of ethnic groups, the research pays special attention to the inheritance and protection of special small ethnic folk sports culture, using the research methods, such as anthropological...

Inner wall derusting and grinding of pressure pipelines are important work for their safety operation. However, up to date, this important work are still in difficulty, the corresponding methods are still very limited and cannot meet the requirements of practical industry applications. Therefore, the...

It is possible to construct DNA codes from classical linear codes. However, it is difficult to determine the GC weight enumerator. In this paper, we use the -linear self-dual codes to construct DNA codes. have some good properties, so DNA codes can be easily constructed. Moreover, GC weight enumerator...

Based on the grey system theory, Nib lack algorithm and hole filling algorithm, the automatic detection system of micro fiber edge is developed. The mathematical model and design idea of the algorithm are introduced, and the design results are presented. The experimental results show that the design...

With the increasingly widespread application scenarios of drones, higher requirements have been put forward for the autonomous flight capability of drones. The autonomous obstacle avoidance technology of unmanned aerial vehicles plays an important role in various environments that are inconvenient for...

In this paper, we select big data information such as credit risk, credit policy and transaction bill information of small and micro businesses , screen enterprises that do not meet the evaluation requirements, establish credit indicators, and evaluate the strength of enterprises. Based on the big data...

Using pot experiment, study the L size crosslinked polyacrylamide (L - CPA) and urea with way of banana seedling growth and nitrogen absorption, leaching, residue, apparent loss of n to the influence of reasonable L - CPA in banana seedling stage. The results showed that in the banana seedling stage...

Information technology becomes increasingly important for modern information services. This technology changes the traditional passive single service model of the traditional library and information, expands the collection volume of library and information institutions, and upgrades the information quality...

To analyze supply and demand matching degree of taxi resources in different periods in the long span, namely, with year as its measuring unit, this paper selects Wuhan city whose taxi ordering volume ranks in forefront [1] in China, analyzes the change law and development trend of supply and demand matching...

With the rapid development of Internet, the traditional public opinion pattern has changed. The young’s thoughts and discussions about the social conflicts tend to evolve into hot topics on the Web. Social negative emotions are spread by the Internet, quite easily influencing the social values of college...

The clothes in every dynasties embody the factors of politic and culture in China, Tang dynasty is so on. After the Benign Administration of Zhenguan Reign Period in Tang dynasty, the economic developed quickly. Due to the great territory, the decree unity and the material wealth, Tang dynasty had close...

Based on an introduction on present status of battery management of substations in China, this paper points out problems existing in current battery management of substation, puts forward an active battery management strategy regarding such problems and introduces its implementation framework, principle,...

Random testing is a widely used testing technique, and adaptive random testing has enhanced the performance of random testing recently. The research results demonstrate that the improvement depends on the characters of the software defect region. A method that depicts the distribution of software defect...

Future internet works will include large numbers of portable devices moving among small, wireless cells. Users demand seamless mobility and Quality-of-Service (QoS) provisioning to support real-time applications. Hierarchical Mobile IPv6 (HMIPv6) is designed to reduce the amount of signaling required...

With the maturity of drone technology and its increasing application in agriculture, logistics, and even medical fields, the issue of its flight safety in low-altitude complex environments has become increasingly critical. Autonomous flight obstacle avoidance is the core technology to ensure the reliability...

In the field of machine learning, support vector machine is a supervised learning model which can analyze the data and identify patterns, and this theory is used for classification and regression analysis which is related to the learning algorithm. Support vector machine is a new machine learning method...

In today's power grid, harmonics produced by all types of harmonic source will pollute the power system, and massive consumption as well as transmission of reactive power will affect the stability of Electrical equipment operation. It is essential to apply AC Filter, an equipment to reduce harmonics...

This essay designs and realizes a Java-based lightweight ORM component-Nemo: Nemo is one Java-based lightweight ORM component, a middleware which can realize the seamless connection between Java language and SQL (Structured Query Language) of data access. The function it realizes is to form an auto-mapping...

Based on the principle that different rhythm corresponds to different levels of system complexity, study on shockable rhythm (ShR) has been conducted, especially for the sample entropy-based ShR detection method which has been compared with the established complexity method by detecting all data in the...

With the development of science and technology in the power industry, the maintenance staffs of all power companies are facing more and more electrical power equipment. The internal structure of equipment is more complex. So are the external physical and logical relations of it. The traditional maintenance...

The paper begins with an introduction of some crucial definitions apropos of regression analysis. Then it discusses briefly the concept of R-square that verifies the accuracy of a regression model and of Hypothesis Testing that tests hypothesis made concerning the population. The main part of the paper...

Medium and small cities are the high proportion in the total number of cities in China, the con-struction of emergency system for medium and small cities is relatively backward compared with big cities, speeding up the construction of medium and small cities emergency system is imperative. This paper...

This paper starts from the development history and current situation of cross-border e-commerce and financial service supervision, and expounds the connotation and main content of cross-border e-commerce and financial service supervision. By analyzing the shortcomings and difficulties of the two in the...

The implementation of entrepreneurship education is the requirement of higher education in China, the reform of higher education must be achieved through the construction of curriculum system. Based on this, we analyze the problems existing in the current entrepreneurship education course construction...

By introduce the information entropy and the average-distance-amongst-points to analysis the population distribution in the process of evolution, and figured out the cause of the DE/best/* premature convergence is the control function of the current optimal individual to decrease the population diversity...

Solvothermal synthesis was investigated as a viable method for the fabrication of quaternary Cu2ZnSnSe4 (CZTSe) semiconductor compound. With metal salts and selenium powder as starting materials, single-phase CZTSe nanoparticles, as determined by X-ray diffraction and Raman analysis, were obtained in...

Cloud users want to get a full control of the virtual computing resources in a cloud platform, a trusted cloud computing technology provides a reliable measure in the root for the cloud platform, but it couldn't provide fine-grained credible support services, and can't meet the demand of users the flexibility...

Internet of Things (IoT) Technology has been widely used in modern logistics service, with which logistics service’s quality was improved and service range was extended. This paper is aimed at developing a new logistics service quality evaluation index system which takes application of IoT technology...

In this paper, we conduct research on the image de-noising algorithm based on the Wiener filtering and the edge modeling. Image restoration is a norm and the noise pollution observation to estimate the original image in the image, the purpose is to restore the decay and loss of high frequency components....

A novel UWB filter is proposed based on Split Ground Structure(SGS) in this paper. LC equivalent circuit of SGS is drew by analyzing its electric field, magnetic field and current distribution, giving its methods and formulas of SGS parameter extraction. Finally we give LC equivalent circuit of the entire...

The paper proposed a human identification strategy based on ECG (electrocardiogram) frequency domain features. Fourier transform was used on ECG signal to get frequency domain features. The features contained frequency-domain signal slope, harmonic number, the magnitude gap, ratio of different frequency...

Wheat washing can remove stone, dampen and clean. It works with the help of water solubility and flushing action to purify the surface of wheat. For the water consumption and pollution of traditional wheat washing machines have become increasingly prominent, a water-saving cleaning technology for wheat...

The scramjet performance of air-breathing hypersonic vehicle is highly correlated with flight height, Mach and angle of attack (AOA). The violent disturbance of the AOA can cause the engine power off. Consequently, the maneuverability of hypersonic vehicle is strictly limited in the cruising period....

Due to the rapid development of agricultural informatization and agricultural industrialization, computer technology and network technology has become an indispensable part in agricultural modernization, and the technology of computer and Internet technology to promote e-commerce development is exerted...

A method based on vibration cutting is proposed to overcome the difficulty of chip removal for small diameter deep hole drilling. The method of vibration drilling has the advantages of small drilling force, high drilling accuracy and high chip removal performance.

In recent years, with the development of economy and science and technology, establishing a more intelligent transportation system is an effective way to solve the frequent traffic problems. Drones are widely used in intelligent transportation because of their compactness and flexibility, wide aerial...