Advances in Computer Science Research

[Objective] To build a service design model for the ophthalmology and optometry industry to solve the problems of low consumer satisfaction with service experience and the mismatch between market service entities and consumers’ service needs during the post-epidemic period, so as to transform the industry...

In this paper, we are interested in minimal number of red-nodes in a red-black tree. An time dynamic programming algorithm is presented first for computing , the smallest number of red internal nodes in a red-black tree on keys. We then improve the algorithm to a new time algorithm. Then the algorithm...

E-commerce oriented integrated logistics platform is based on advanced Internet technology, which can establish open, transparent, shared data application platform. In order to reduce logistics cost and provide high-quality logistics service for e-commerce enterprises, it can integrate various social...

Problem: With the evolving and rapid development of information warfare, how to effectively use of electronic warfare equipment, give full play to our capacity, has become the focus of common concern. In the course of the actual confrontation, the opponents of electronic countermeasures are often hidden...

A large project implementation arrangement needs to be rational. To achieve better efficiency, its managers must pay attention to the problem. Critical path method provides an effective method by which you can find the key routes and key point of management to improve management efficiency. If your project...

Post-industrial economy is shaped by both digitalization, i.e. network-based co-ordination of relations, advanced development of service industry, increase in the number of open innovations, and by deep changes in the role of human and knowledge. The development of Information society can provide competitive...

Aiming at the problems that BP algorithm has slow convergence rate and is likely to fall into local minimum point.This paper presents a modified fuzzyneural network whichtakes the distances between the robot and obstacles as input variables, and the velocity and the steering angle of the robot as output...

MapReduce is an effective programming model for analyzing large-scale data. Hadoop-a distributed processing system is widely used nowadays. Improving the task parallelism can be a key point to improve the MapReduce performance in Hadoop. In this paper, we address the problem in two ways. On the one hand...

This paper analyzes the inner relations between Classical sub-scheme probability and statistic probability, subjective probability and objective probability, prior probability and posterior probability, Transition probability and probability of utility, and further analysis the goal, method, and its...

Camshift is an adaptive tracking algorithm based on color histogram with the advantages of translation, scale and rotation invariance, which is widely used in visual tracking. But in the moving scenes, due to the changing background, occlusion and environmental illumination, the tracking effectiveness...

Since 1990s, hot money has flooded into emerging countries and causes more frequent financial crisis in these countries. What’s worse, as economic globalization and financial unification deepens, hot money scales up and is hard to discover. This paper studies hot money inflow channel, hot money’s effect...

This essay relates mainly to sporadic FC (forecasting) methods and error measures. The existing related FC methods of sporadic time series (STS), including the SES (Simple Exponential Smoothing), Croston’ s / SBA method and patented WSS method as well as two applicable error metrics APE and THEIL'S U...

In the era of big data, people's lifestyles, daily habits, and modes of thinking have undergone earth-shaking changes. Big data has become an important topic for research in industry and academia. But big data is a double-edged sword. It brings convenience to people and brings certain risks. In the process...

Synthetic basis functions method(SBFM) is introduced to analyze the electromagnetic properties of large periodic arrays. Compared with the traditional method of moment (MoM), SBFM uses fewer high order basis functions which significantly reduces the number of unknowns, contributing to higher efficiency...

Jilin is an important commodity grain base in China, meanwhile, it is also one of the 13 main grain producing provinces; and, the soybean planting area in Jilin has been always ranked in the forefront of China. Soybean is one of the most important food crops in China, as well as an important industrial...

In this paper, an approximate solution for solving nonlinear mixed Volterra-Fredholm fractional integro-differential equations is presented. The fractional derivative is defined in terms of Caputo type. Two methods are suggested: Adomin Decomposition Method (ADM) and Residual Power Series Method (RPSM)....

Cartogram is a map depicting attributes of spatial data by distorting two dimensional original maps while preserving their topology. In this paper, a novel cartogram thematic map is adopted to express population growth. The best fitting model is proposed to predict the population of randomly selected...

The security workflow is proposed according to the transactional workflow discussed in this paper. When it comes to the security workflow, it is necessary to consider the compensation of the attack. In this paper, the recovery properties is introduced in security database workflow: non-vital property,...

This paper describes the purpose of device for data collection and transmission to diagnose the condition of the dam. The structure of hardware and software components of the device called "Varyag" is depicted.

Despite the possibility of finding exact solutions to the Einstein field equations, there is another way to obtain new exact solutions without having to directly solve the Einstein field equations. This method is the so called "solution generating theorems". In the descriptive approximation of stars,...

Hydraulic power chuck clamping force has been the main factor of the precision ultra-precision machining precision of modern CNC machine tools. To solve this problem, the designed wireless sensor system can achieve the real-time detection of chuck dynamic clamping force. The system can provide on-site...

A computer-aided diagnosis system used for Obstructive Sleep Apnea Hypopnea Syndrome is designed. The technical realization of the system in the aspects of image segmentation, 3D reconstruction, data measurement and the like is mainly discussed. The system operability and effectiveness are analyzed through...

This paper describes the decision support system based on business process technology which could apply various data and models to assist decision-makers at each level in achieving effective and scientific decisions in the presence of emergencies in the field of urban rail transit. Combining with the...

As a result of the limitation of testing environment area and testing equipment, the existing the rigid structure of the feeding device or multistage hydraulic cylinder cantilever mechanism can't meet the requirement of the stiffness. A scale is developed relatively high stiffness and high cantilever...

At present, the physical education in elementary and secondary school lacks real-time data acquisition system, which resulted in obstacles to relevant researches. In this paper, a real-time sports data acquisition system for multiple students is proposed. Combined with wireless communication technology,...

With the extending of the scope of information sharing and data exchange, ontology, as the formal specification of share concepts, is more and more useful. FCA had remedied deficiency of existing method of ontology building. In this paper, the existing methods of domain ontology building are presented,...

Since the Internet of Things has become more and more popular, the number of devices in IoT increase at a rapid clip. Some Researches introduced virtual object to enrich the management of the devices. Therefore, virtual object life cycles will need to be thoroughly managed, so that when their usage changes...

In the context of dual carbon emissions, the comprehensive evaluation system of universities is the focus of the sustainable university construction process. Therefore, by integrating the existing sustainable university evaluation system at home and abroad, on the basis of data processing and application,...

With the requirements of the power load predicting accuracy becoming higher and higher, and the actual power load is also a complex nonlinear system limited by various uncertain factors. Given only considering the influence of a single model on the load forecasting, the predicting accuracy is absolutely...

Piloting is a kind of unique service based on grasp of local knowledge and special circumstances often occurring within piloting areas. In terms of form, piloting is the behavior of helping ship navigate by staff with professional knowledge, experience and skills in order to ensure safe navigation and...

The number and structure of female labor force in China is changing due to the reasons of economy, policy, history and other factors. The female labor force participation rate of China is declining continuously through the qualitative research of the variation trend and periodic law of the female labor...

In this paper, the working principle of capacity regulating transformer was analyzed firstly. Based on applying the idea of connecting with transition resistance, the mathematical simulation models were established in Matlab Simulink software. According to the simulation calculation under different resistance...

SNA (Social Network Analysis) has been frequently used as a tool for patent analysis. This study analyzes the popular topics and communities in the field of patent analysis with SNA with publications included in Web of Science. This study reveals that (1) the research in the field of patent analysis...

The old people are a special group of our society. With the development’s rapid of our society is faster and faster, how to meet the need of the old emotion so as to make their life better has becoming the very focal point of our society. Therefore, the research of industrial design based on the old...

In order to safeguard the maritime navigation safety of Xiamen port and improve the efficiency of port operations, protect the marine environment, based on the analysis of various factors affecting the safety of Xiamen port navigation, we established navigation safety evaluation index system of Xiamen...

In today's society, the rapid replacement of information, enterprise demand is also changing. Facing the contradiction between many enterprises unable to find satisfactory talents and university graduates unable to find the right job, the university classroom is facing a major reform. We must recognize...

Chinese express industry lacks regulation. Once the parcel is broken during the express journey, it is difficult to determine who should be responsible for the loss because there are lots of steps in express. Hence, our solution is to design a machine that can record the damage the parcel suffering and...

To increase the transmission capacity of remote high voltage transmission system, the series capacitance compensation of power network is a very economical and effective common measure. But, when electric power system is connected in series with the power transmission system of capacitance compensation...

The proper design of the 4G LTE network, in order to provide sufficient capacity of high-quality coverage and efficient terminal traffic management, is of utmost importance. Therefore, the joint LTE wireless communications network design problem is modeled in this paper as an optimization problem. The...

With the rapid development of Universities running mode, the scale of fixed assets is growing increasingly and the assets become more complex and difficult day after day. Thus the management becomes harder and harder. How to analyze the problems during capital management in a new situation and solve...

Gesture recognition is a research hotspot in HCI (Human-Computer Interaction). The camera-based gesture recognition method has become the focus of research in this field due to its low cost. Due to the lack of three-dimensional coordinate information and depth information, image-based gesture recognition...

With the explosive growth of ship information data brought by the intellectualization and digitization of waterborne traffic, it has become more and more important to process and apply massive ship data quickly and accurately. In view of the growing maturity and wide application of Spark large data technology...

By integrating blockchain technology through citizen collaboration models, there is also an opportunity for smart urban innovation, participatory governance, and secure digital identity management. They are typically centered around decentralized, transparent, and citizen-centric frameworks that promise...

This study embarked on a mission to solve a complex issue in the field of maritime logistics - understanding and classifying the operational patterns of Liquified Natural Gas (LNG) terminal points across the globe. Given the significant role of LNG shipping in global energy transport, identifying these...

This paper introduces a flexibility and information on ARM + FPGA control platform, modular multi-sensor fusion, servo system as a dynamic system of aerial work four-wheeled vehicle solutions, the design of the control system to solve the possible interaction of control issues.

To study Chinese Beibu Gulf port cost efficiency, based on the cost evaluation index system which is selecting net value of fixed assets, net assets, Cost of prime operating, the number of employees as input indicators, and selecting prime operating revenue , net profit as the output indicators, we constructed...

According to the problem that traditional heart detection equipment is bulky and expensive, approach to designing and implementing portable heart sound detection instrument is proposed in this paper. After the heart sound signal is filtered and amplified by hardware circuits and FPGA, the SCM receives...

To mitigate the earthquake damage, casualties and economic losses, the capacities of disasters monitoring and ear warning need to be strengthened. For this reason, a seismic intensity monitoring system was put forward in this paper. The monitoring system is composed of seismic intensity instrument and...

This paper proposes the establishment and simulation of one optimal classification mathematical model based on chaos probability analysis. A kind of recurrence plot chaotic analysis algorithm is applied to recognize the mathematical classification features and the improved neural network algorithm is...

The technology of extracting network information parameters from FH Synchronization Orthogonal network signal distinguishing is proposed in this paper, then its performance is simulated.

In recent years, people pay more attention to the problem of increasing power consumption of wireless network due to the rapid development of information and communication industry. Using heterogeneous network has been a possible way to solve this problem and improve energy efficiency. Significant research...

As an important tool to study practical problems of biology, engineering and image processing, the cellular neural networks (CNNs) has caused more and more attention. In this paper, by means of iterative analysis, the existence of periodic solution and the uniform stability of the equilibrium point of...

In this paper, the support vector machine (SVM) is applied for the early warning of financial crisis of listed companies, financial early-warning indexes and quantitative methods are analyzed, the early-warning ability of SVM model is verified by combining with the financial data of listed companies,...

In corporate business activities, the identification and control of risks by enterprises has become an important task for corporate management activities. This is also a long-term task for companies. For enterprise managers, it is necessary to invest in the company's own operating conditions on a long-term...

A Monitor AGC control system is applied to a hot strip mill in a steel plant, due to some irrationality gain factors and the hysteresis of the Monitor AGC control output, the strip thickness deviation is large. This paper designs a new type Monitor AGC that includes two control methods:Integral type...

The ordinary operation figure for perennial regulation reservoir with many objects has many shortcomings such as random runoff, overlapping operation areas and so on. This paper establishes a multi-levels operation figure for the Jinxiuchuan reservoir in Jinan city to meet the different water users....

As a new method of computing, cloud computing has brought great convenience to people's network life, but at the same time, there are some security risks. This paper briefly introduces the concept and characteristics of cloud computing, and briefly analyzes the significance to study the security of computer...

The application of Deep Learning Techniques in biometrics has grown significantly during the last decade. The use of deep learning models in ear biometrics is restricted due to the lack of large ear datasets. Researchers employ transfer learning based on several pretrained models to overcome the limitations....

Under the wave of the Internet era, big data and cloud computing technology show a rapid development trend, and this wave of technological innovation has prompted digital technology to continuously penetrate deeply into various fields and industries, providing them with powerful empowerment support....

The study examines the application of artificial intelligence in contemporary artistic discourse, with a focus on the expressive and ethical implications of AI-assisted creation. With the rapid advancement of AI technologies like Deep Learning and Generative Adversarial Networks, intelligent systems...

In order to solve the user rating data about data sparseness and traditional similarity calculation method because of its disadvantages of strict match object attributes, combined with the project classification and cloud computing platform is put forward an improved collaborative filtering recommendation...

In recent years,based on the rapid development of Radio Frequency Identification (RFID) ,the technique has been being used in more and more realms gradually.RFID is different from conventional bar code and is popular for a large number of advantages.This article mainly introduces the RFID applied situation...

In this paper, the design of cucumber harvesting manipulator is completed by using the mechanism instead of the joint type design on the basis of horizontal cucumber planting mode. For the harvesting manipulator, the kinematics simulation of the mechanism is analyzed carried out by Adams. Based on the...

For stochastic model updating (SMU) problem with unknown parameter probability density function (PDF), an approach is proposed to estimate the statistical properties of the structural parameters. The random variable is represented with polynomial chaos expansion (PCE) and therefore the SMU problem is...

In this paper, the auxiliary brake system vehicle stability control experiments using Matlab/Simulink to build the simulation system dynamics associated auxiliary braking system and the actual vehicle system. In the trajectory of the vehicle and the vehicle sideslip angle characterizing the vehicle condition,...

3D printing is a new type of mainstream processing technology in the field of industrial design. Compared with traditional manufacturing technology, 3D printing can manufacture more complicated products with low cost, high efficiency and simple operation. It use the computer software design and modeling...

Based on domestic embedded multi-core operating system testing, this paper describes the characteristics of the multi-core operating system and existing test contents and gives an effective software function and performance function test method for application focus of the domestic embedded multi-core...

A reliability evaluation model is created to analyze the variation process of time series based on the maximum entropy and grey bootstrap principles. The original sample data is collected by measuring the vibration acceleration of time series. Then the simulated vibration acceleration data is obtained...

As problems of both low level informatization and intensification exist in China's TPL industry, a key way to improve logistics level should be the TPL increased informatiztion level. The author proposes the building of a 4PL platform based on the real needs of most TPL enterprises, which will benefit...

What is a security network In this paper, a security network is considered as a diagram of security systems deployed in different places in a guard zone. For a security network, its vulnerability is an important metric to judge whether its protection effectiveness is good or not. How to evaluate the...

Mixed Weibull distributions play an important role in life time data analysis. In this paper, we employ the ECM algorithm to obtain the ML estimation for the mixed Weibull model in the constant stress accelerated life time test with type II censoring. The iteration formulas are given in the paper. Simulations...

Taking STM32F4 and CS536 chips as the core components, a three component microseismic monitoring instrument is designed, which is mainly used to capture microseismic events in shale gas exploitation. The three component geophone, which can record both longitudinal and transverse waves and converted waves,...

In order to improve the vehicle performance, the mathematical model and experimental research of damping controlled oil gas spring were carried out in this paper, a proportional throttle valve was installed on the basis of the original damping valve system. The proportional valve adopted slide valve...

COVID-19 is an infectious disease caused by a coronavirus which spreads from direct human contact through droplets of mucus in the respiratory tract of an infected person. The American Centers for Disease Control and Prevention (CDC) says that asymptomatic COVID-19 patients may account for more than...

In this paper, we present a spectral-like method with Boubaker polynomials to solving numerically some differential equations. The Boubaker polynomial expansion scheme (BPES) are also discussed. A transform from Boubaker polynomial to shifted Legendre orthogonal polynomials is derived. By this transform,...

This paper first introduces the structure of the track wheel, and according to a number of classification criteria for the classification of the track wheel; Then summed up its low weight, low shock, low noise, low grounding pressure, high flexible, high speed, quickly changeable and other unique advantages;...

Aiming at the shortcoming that the calculation of the gray relational coefficient is influenced by the number of schemes and distinguishing coefficient, which causes inconsistency of the evaluation results in the traditional gray relational degree, an effectiveness evaluation method is proposed, which...

The dynamic and uncertainty of management system generate and complicate the problem of providing appropriate quality management solutions. Optimization and adaptive approach to the process of taking a management decision is one the most effective. Practically, it can be implemented by modeling adaptive...

According to the linear elastic fracture mechanics and the virtual work principle, the elemental stiffness matrix of the diagonally cracked RC beam is derived, and the frequencies and modes of the diagonally cracked beam are obtained. The experiment is executed to verify the elemental stiffness matrix....

Aiming at the problems of nonlinearity, time-varying and big lagging in an activated sludge wastewater treatment process, the forecast modeling of COD can be established according to the historical data of chemical oxygen demand(COD) collected from sewage plant, and using the LIBSVM toolbox to determine...

In most real-world industries, scheduling is processed in a stochastic and dynamic environment, it is necessary to generate a schedule which is suitable for the current system states. Dynamic scheduling solves unimplemented jobs and updates an existing schedule based on the real-time information with...

In order to make video-monitoring camera output high quality video in a cabin with high temperature, it is very necessary for the temperature control circuit to drive heat sink and fan at the appropriate time. Moreover, quantitative analysis of the cooling effect is more important so as to get the thermal...

Aiming at the low generating efficiency of the current solar energy generating system, solar energy maximum power point tracking control system based on STC89C52 is designed and made. The photoelectric detection and tracking is adopted as the control mode in the system. By using stepping motor as driving...

Regional logistics demand has an important guiding significance for regional logistics development planning. However, due to the wide range of areas and departments involved in logistics activities, and the corresponding statistics is unavailable. Therefore, the demand for regional logistics is much...

This paper prosposes an integration research to apply advanced communication technology in quality testing, including three aspects: integration of inspection function based on equipment, integration of inspection equipment based on interface communication, and integration of inspection unit based on...

Spiral space phase distribution of the vortex wave form specific orbital angular momentum. This paper studies the effect of atmospheric turbulence on the vortex wave phase through the numerical simulation. In order to analyze the influence of atmospheric turbulence on the vortex wave, we make comparison...

Management of credit risk plays a vital role in the financial industry, allowing institutions to mitigate losses, optimize capital allocation, and make informed decisions. This study investigates the predictive efficacy of five machine learning algorithms (Decision Trees, Logistic Regression, Random...

Based on two-wave data from 203 employees, we found that employees’ increasing challenge demands was positively related to their basic psychological need satisfaction, which then positively related to job involvement and negatively related to work alienation. By revealing the influencing mechanism among...

This paper empirically examines the impact of regional energy consumption structure on corporate ESG ratings using data on Chinese A-share listed companies and the energy consumption structure of provinces and municipalities from 2011-2019. It is found that corporate ESG scores decline in regions where...

In the context of the development of education informationization, online test system is a teaching method to adapt to the education informationization development trend under the intelligent tutoringsystem (ITS), but at present, traditional listening test exists the issues of untimely feedback and lack...

This paper mainly expounds the entertainment idols' art management innovation, entertainment idols have been rising earlier in the West, and it has been rising in China from the 80s . With the development of media, entertainment idols have great influence on the way of public's life, behavior and values...

Recently, data centres have been called out for their particularly high energy consumption, which already accounts for 1.5% of the total global electricity consumption and is among the world’s fastest growing energy consumptions. To reduce the data centres’ environmental impacts, technologies such as...

It is the advantage of vocational colleges and universities to participate in the innovation and entrepreneurship activities, but there are also some problems such as atmosphere construction, curriculum design, practical ability and teaching level. In order to solve the problems and promote the transformation...

The metal halide lamp is one of the best energy-saving and environment-protective illumination plans to substitute traditional light sources with high energy consumption. Electronic ballast is essentially the power supply for metal halide lamp, so it has great significance to develop high-performance...

In this paper, a model of active control system with delays is studied. Some sufficient conditions to guarantee the stability and oscillations for the system are established. Computer simulation is given to support our result.

We propose a many-particle model for pedestrian dynamics, which simply assumes that the velocity (including both magnitude and direction) of a pedestrian depends on the positions of all pedestrians. This is similar to that in the well-known social force model. However, our formulation is computationally...

This paper calculates the VaR of copper futures' price in SHFE and LME during the Sub-prime mortgage crisis and the European debt crisis using the EGARCH-GED model. The direction and extent of spillover effects are checked with Granger causality test and impulse response function. The empirical results...

Low-flying and long-endurance SUAV generally use the piston engine to provide power. The vibration signal in the airframe exhibits a characteristic of multi-vibration-source, wide-band and non-stationary due to lightweight design of SUAV. The vibration will be captured by MIMU, which can significantly...

Aims at AOCMT type five-axis ultra-precision CNC machine tool, the rotary axis geometric errors model is established by applying the homogeneous coordinate transformation matrix, a kind of errors measurement and identification method is put forward. It takes A axis as an example, using the function of...

Digital Devices or Electric and Electronic Equipment (EEE) are scrapped at an alarming rate instead of being salvaged, fixed, and reused. For the reuse sector to flourish, donors, receivers, and reuse centers need services and technologies to gain effectiveness, efficiency, and traceability to reach...