User-generated content is of great significance for user modeling and user interest mining. This paper defines a microblog user model which combining weibo content and tags with vector space model(VSM) representation. The user model consists of two parts, one part, user interest representation based...

A rapid parametric modeling method capable to automatically build and modify the form of SWATH based on Siemens NX extended development is described, aiming at solving the problem of long time consuming and low utilization of the traditional SWATH modeling method. The underwater hull and strut are parameterized...

This paper focuses on 3D scene reconstruction by various simulation methods and multi-sources data. 3D scene reconstruction is a tool to be able to analyze an area by rendering it in 3D. This is a research piece that looks at how different methods of modeling have different functions and applications....

In order to solve the problem of modeling and rendering of large data scene, this paper presents a fast method for modeling and rendering multi-level, multi-resolution road based on the road information extraction of simple attribute remote sensing image. Firstly, Fuzzy C-means Clustering (FCM), Bwareaopen,...

The use of computer simulation technology to build complex electromagnetic environment is a hot topic in modern military science research. According to the characteristics of the radiation source in the real scene, the mathematical model of the radiation source is established. Then, according to the...

As a basic component, electrical connectors play a major role in the transmission and control of electric signals. In this paper, SubMiniature version A (SMA) coaxial connectors, which are widely used in the microwave equipment and radio frequency circuits, were taken as the research objects to investigate...

The simulation of the structure frame of a flying car is carried out to verify the feasibility of the design scheme. Based on Patran/Nastran, the structure frame of the flying car is simulated by the finite element method. The mechanical performance of the structure frame under the working condition,...

Porous scaffold is an effective bone substiutes for bone defect repair. The research developed a new method of modeling of bionic porous scaffold for bone defect repair based on bone mineral density distribution through topological analysis and mathematical modeling of porous scaffold, and, taking femur...

Optimizing business strategy for maximal profit is challenging due to the variabilities and uncertainties of parametric inputs required for estimating future profits. Incorporating economic uncertainties into profit estimating process through stochastic simulation could be an option for reliable business...

To tackle the problem of scientific evaluation of local industry development and distribution, we focused on two sub problems, where one was the spatial distribution rationality evaluation of multi-scale industrial clusters, and the other was the sustainable development suitability evaluation of industrial...

This paper proposes a new type of the bamboo culm integrated bamboo bundles glulam using bamboo culm as skeleton, which solves the problem of the irregular size of the original bamboo and the hollow structures. A three dimension finite element model of bamboo culm integrated bamboo bundles glulam was...

Network Illegal fund-raising is a social problem and is more subtle and destructive. Government regulators should explore more effective control methods for early discovery. At the preliminary stage of the illegal fund-raising, in order to promote the investment effect and producing the spread effect...

Slider is an important power output component for high-speed precision presses, which requiring a higher stiffness (less deformation). The mold and stamping part’s size were generally not considered for the traditional analysis method. In this paper, the length and thickness of the equivalent upper die...

The study on the simulation model of the metal oxide arrester (MOA) is of great significance to its production test and application. Simulation method is usually applied to MOA simulation test for some small and medium-sized enterprises with limited test conditions. The situation that there are a great...

Estimating the residual useful life (RUL) time of turbofan engines is a determinant factor for aviation safety. Different methods of machine learning are explored in the field of turbofan health estimation and prognosis, to save maintenance cost and enhance aviation safety. An algorithm used for turbofan...

In today's society, with the development of cell phones, it has brought more and more convenience to us. More and more people use cell phones and landline phones to assume the trend of being replaced. While using cell phones, energy consumption has risen dramatically. In order to save energy so as to...

Three-dimensional (3D) city models have become an important component of spatial information infrastructure, and widely used in studies of virtual geographical environments, urban planning, and navigation, as well as other fields. Level of detail (LOD) representation of 3D models provides a foundation...

We represent a method of analysis of the spacecraft onboard equipment testing on the basis of the simulation model precedent database. Simulation modeling allows to play all the possible versions of the onboard equipment functioning and the scenarios of spacecraft control command transmission. Usage...

In April 2020, Atlantis Press was alerted to fake proceedings articles hosted on our platform. These articles, mostly in computer science and engineering, were generated by the SCIgen computer program and were all published between 2006-2018. Immediately after receiving the alert, Atlantis Press initiated...

The three-level neutral point clamped converter (NPC) is one of the most promising topologies for medium-voltage high-power applications. However, the system stability is challenged by the DC-link capacitor voltages fluctuation especially in the presence of fault tolerant operation condition. To solve...

In view of the current lack of practical light weapons reserve model research, through the analysis of factors and the effort on combing related concepts, a light weapons reserve military conceptual model and mathematical model have been established, which provides a reference for decision-making and...

Because of the large capacity and high energy density, lithium-ion batteries are often used as power source in electric vehicles. However, in the process of batteries, temperature will significantly adverse the battery, such as shorten the battery life, reduce the battery performance and so on. Therefore,...

In order to realize variable rate spraying and ensure the spraying effect, a set of feedback variable spraying control system based on ARM was designed. The system takes the vehicular ARM controller as the core and adopts Linux operating system to obtain the information such as vehicle speed, liquid...

In the premise of meeting the kinematics, analyzing and optimizing the trafficability of long semi-trailer on the narrow road with obstacles on both sides. This paper gives a scheme by adjusting and designing wheelspan and wheelbase, which is proved the feasibility of the scheme by the experiment.

Profit space of power grid enterprises is being compressed under the background of continuous improvement of power system reform in China. At the same time, due to environmental and climate issues, the state strongly advocates energy conservation and emission reduction, all of which makes the grid enterprises...

Ad-hoc network is a repeatedly jumping, nothing central, and self-organizing network. the entire network has not stable infrastructure, consisting of mobile nodes. According to the problem that cluster Ad-hoc network cluster head selection mechanism is not reasonable and the cluster heads, and cluster...

Capacity in multi-radio multi-channel wireless mesh networks can be greatly enhanced by adopting effective load balancing algorithms. In this work, a new channel allocation algorithm is proposed by considering inter-channel interference and load balance issue to maximize network capacity. The algorithm...

With the rapid development of the Internet and mobile Internet, the amount of data and information generated by people has dramatically increased. The demand for rapid processing of data by computers has become increasingly urgent. Clustering analysis is one of the most important data processing methods....

Resource matching is designed to make use of limited resources to optimize the processing task. In this paper, genetic algorithm is adopted to optimize the matching of resources. First, the principle of genetic algorithm and resource matching are introduced. Then, the detailed steps of genetic algorithm...

This paper proposes a monitoring method of power dispatching automation master station based on clustering algorithm. Based on the application of history data, this method constructs multi-dimensional space vector, and generates operation state knowledge base by clustering algorithm. Real time data can...

In this paper, a class of optimization problem is studied. The objective function is a functional in a Banach space and the constraint is cone constraint where the cone doesn’t need nonempty interior. The concept of the conjugate function is introduced and a duality theorem is established. Then, by use...

BP neural network recognition algorithm was used to carry through target recognition, then we adopted quadratic programming and generalized least squares to optimize the network weights and thresholds, at last the algorithm formula was deduced. In the neural network training process, a tendentious training...

The new optimal adjustment method on stroke of the digital pumping unit is proposed in this paper after analysis the main disadvantages of the existing digital pumping unit on adjustment speed. The new method is based on the change of the area of the indicator diagram. According to the change of the...

Power line is the main equipment of transmission link, and its failure prediction will help to improve the safe operation level of the power grid and ensure the reliable electricity consumption of users. In this paper, the optimized decision tree algorithm is used to forecast fault line tripping. Firstly,...

With the significant advancements in Information and Communications Technology (ICT), computer simulations have been widely used in natural sciences and engineering analysis. Algorithms for parameters optimization in computer models have been necessity in computer modeling due to the accuracy requirements....

The present study addresses the elastic deformation of topocomposites with thin hard surface layers during instrumented indentation. We propose calculation techniques to establish the elastic characteristics of the topocomposite surface and the coating material, involving the results of instrumented...

Corona discharge may occurs when the lighting conductors are close to the HVDC transmission lines. In this paper, the ion flow electric field on the surface of lighting conductors is calculated by flux tracing method. According to the calculated results, influences of the height, radius and distance...

In the research of Network-on-Chip (NoC), network performance is evaluated by a lot of simulations. In these simulations, traffic scenarios play an important role. A wide range of traffic scenarios, such as uniform random, transpose, tornado, etc. have been considered. However, there is lack of comparative...

The security problem of network devices and terminals has been attracted much attention. Many experts and scholars have done a lot of research on this. Based on the TNC three elements and three layers architecture, a new scheme about the network device and terminal connection and authentication is proposed,...

In this paper, we want to research on the superiority of dropwise condensation. First, the concept of interlayer convection was presented. Then, a mathematical model about the transition from film condensation to dropwise condensation was established. It is confirmed in theory that heat transfer coefficients...

This paper discusses the methods to implement the investment management efficiently and finely with personal engineering practice. The methods includes constructing the investment information platform of construction project, building project money payment management card, building completion summary...

Attitude estimation is used to determine the spatial orientation of an object relative to a reference coordinate frame, or to provide a method for vector conversion between the reference coordinate frame and the target coordinate frame. In this paper, after the definitions of 4 kinds of attitude representations,...

With the issue of a series of important laws and regulations, the police level for violation prevention of bidding has been more and more mature. However, due to lacking effective technologies, supervision of concrete flow has become the weakness of the whole system. To perfect bidding system and enhance...

This study aims to investigate various geometrical solutions of toroidal LPG (Liquefied Petroleum Gas) fuel tanks used in automotive industry, using CAD parametric modeling. The CAD modeling has a potential impact required to develop and to implement new mathematical models on the engineering design...

This study describes a simple and easy-to-implement method to determine the pressure drop in industrial pipes with non-uniform roughness and helical ribs in the case of laminar flow. The effects of the pipe geometrical parameters on the laminar flow regime are discussed. The proposed method of solution...

Noncontact measurement of electrostatic voltage is required to study the charges in HVDC transmission system. The calibration platform of noncontact electrostatic voltmeter is studied. The electric field near the measurement probe is calculated by FEM. Based on the calculation, the edge effect and applied...

Objective: The target is usually tracked in real time at thoracic and abdominal radiotherapy due to the effect of respiratory motion, the prediction is necessary to compensate the system latency. Method: This paper proposed a prediction method based on support vector regression, it dynamically updates...

Generalized linear models are generally applied in statistical researches. Since a lot of real data reveal nonnormality especially skew-normality, new assumption is proposed that error terms follow skew-normal distribution to increase the adaptability of GLMs, which forms GLMSNs. To estimate the parameters...

In order to measure the intersection of rotatable arc guideway system, namely, the distance from the center determined by the rotatable arc guideway to the axis line of rotation, a crosshair target was fixed on the slider sliding along the arc guideway, and a theodolite was installed in the front of...

The deviation of deep hole’s axis is measured in real-time machining process by using ultrasonic thickness measurement method. A ultrasonic device is designed using 3-points circle method, the polar parameter model of measurement objects is built and the function relationship between object and measured...

To improve the computer-assisted diagnosis and decision in dentistry, we tested a new method combining Hu moment invariant (HMI) method and extreme learning machine (ELM) to implement the teeth classification in cross-section image of Cone Beam Computed Tomography (CBCT). 160 images were analyzed and...

The study was made on the effect of wave group interaction on the distribution of wave height. The interaction of two wave groups was studied on the basis of coupled nonlinear Schrödinger equations. We found that wave group interaction may cause the deviation of wave height distribution from the result...

In order to improve the prediction fitting degree of the existing method to predict the drift path of the ship, the particle reloading simulation method was proposed to predict the drift path from the aspect of segment prediction. Particle reloading simulation method divides the drift time into multiple...

The location-routing problem under emergency with simultaneous relief materials delivery and victim evacuation is studied and modeled. The number of victims is assumed ambiguous, risk preference of the decision maker is considered, and mixed transportation of relief and victims is allowed. A chance-constrained...

This paper provides a heuristic route planning method based on the cost estimation of visibility through which Autonomous Underwater Vehicle (AUV) can voyage safely and efficiently in complex Marine application environment. The optimized model of AUV is set up and deduced in this paper. Then the constraints...

As an important means of water transportation, ships bear domestic and international trade and transportation, and consume a large amount of fuel every year. It is imperative to improve ship energy efficiency and reduce energy consumption. Describes the international situation of ship energy save and...

A routing model with multiple transportation modes considering road damage is developed, and a two-stage variable neighborhood search algorithm is proposed for solving. The logistic function is used to describe the possible loss of a customer due to waiting, and the choice of transport mode depends on...

To forecast total water demand in advance is practically important for water supply planning. The paper first made impacting factors analysis of the total water demand in China. Then established three models for the total water demand forecasting by multiple regression analysis. The fitting precision...

We show that hyperexponential and hyper-Erlang distributions reproduce themselves by composition. We find new formulas for probability densities and distribution functions of Gamma statistics sums.

A fault tree diagnosis method for chassis braking system of launching vehicle is proposed in this paper based on multiple attribute decision making theory. Aiming at the limitation of the traditional fault tree analysis method of poor accuracy and low efficiency, this paper uses TOPSIS method to determine...

Based on the survey data of Peasants in China, the bivariate Probit model is constructed to analyze the factors affecting Peasants’ land mortgage Determinants. The results show that the willingness of Peasants' land mortgage is higher, and the education level, the rationality of loan term and the understanding...

Korea experienced a recession in the shipbuilding industry due to a decline in orders for vessels and a lack of orders from the Korean market. In 2017, the amount of orders has increased compared to the previous year, but it is expected to be only 60% of the previous level in 2020. However, it will be...

Recently, users’ relationship prediction in spatio-temporal data has attracted widespread attentions. Previous studies have focused on either co-occurrence or context in spatial aspect, where the context in time aspect is seldom considered. In this paper, considering co-occurrence, context, and mobility...

During the construction of the project, all surveying and mapping work is collectively referred to as engineering survey. Therefore, the measurement work contains a wide range of content, in the engineering survey, design and construction management stage are involved. To the actual work, the project...

The concept of nearest neighbor has been used in several anomaly techniques, which supposes normal data instances occur in dense neighbors and anomalies occur far from their closest neighbors. So the techniques require a distance or similarity measure defined between two data instances. By now, there...

There are defects in traditional liquid level control system of twin roll casting head-box, this study proposes one kind of liquid level precise control system for the head-box based on a combination of laser precise ranging and precise servo control system. Precise laser rangefinder implemented stable...

At present, the comprehensive index evaluation system of distribution network does not include access to distributed power and electric heating, which is not in line with the actual situation nowadays. To this end, an improved comprehensive index evaluation system is proposed, and the weight of indicators...

With the development of the times, "big data" has begun to enter people's lives, and it has also increasingly changed the way people think. As an emerging discipline, the development of land engineering disciplines is inseparable from the support of big data.

The genetic fuzzy system is applied to weapon control module of unmanned tanks. In this paper, the simulation system is built to train the fuzzy rule base of genetic fuzzy system in order to get the optimal fuzzy rule base with training tasks. Testing tasks are used to test the success rate of different...

Unmanned aerial vehicle (UAV) technology is rapidly developing and application, and UAV recycling is the key link in the application according to statistics, 80% of UAV failures occurred in the process of landing. Traditional UAV recycling methods have been unable to meet the modern UAV use. With the...

With the development of robot technology, many researchers have changed the investigating direction from single-robot control to multi-robot control. In terms of the group control of humanoid robot, this paper addressed a socket communication and multi-thread technology based on Python such that the...

Neural network has strong ability of nonlinear approximation and fitting, which was widely used in various prognosis prediction researches. Meanwhile, the selection of neural network input parameters was very important: the number of input layer nodes would increase as the number of input parameters...

Aiming at the problem of the effect of longtime delay and nonlinear of the double-tank’s level control, the PID control of BP neural network tuning parameters is studied in this paper. The characteristics of the control system are analyzed minutely, a neural PID controller is designed and its control...

Dempster-Shafer (D-S) evidence theory has been widely used in multisensor data fusion to deal with uncertain information. But unreasonable results may be produced by using D-S combination rule in the case of that data are conflicting with each other. This paper proposes a modified evidence combination...

An intelligent network switch based on human infrared and light intensity sensors is designed by using human infrared sensor and light intensity sensor to realize the intelligent control of the home lamps. Switches will control the lights when there's only a man in the room and the light is dark, so...

With the rapid development of information management in colleges and universities, traditional eye-observing verification methods cannot satisfy today’s requirement for examination management any more. Examinees’ identities need to be verified more effectively and accurately. In recent years, biometric...

Objective: To explore a method to identify classical recipes of traditional Chinese medicine (TCM) from clinical prescriptions of traditional Chinese medicine (TCM). Methods: By using the template matching algorithm in the field of image processing, this paper designs a kind of computer algorithm for...

In this paper, we analyze and extract the Tibetan text features structure based on k-means image character recognition algorithm. Through character library file generated from Tessract-ocr training, we improve the accuracy and recognition of image text recognition and extraction and realize the identification...

This paper is aimed to develop and evaluate a real-time terrain mode recognition system to assist the control of the lower-limb prosthesis. A wearable terrain recognition device, composed of an inertia measurement unit and a 2D-laser, was built to classify the types of terrain in front of the lower-limb...

Visual Question Answering (VQA) is an attractive topic combin-ing computer vision with natural language processing. It is more challenging than text-based question answering because of its multimodal nature. The VQA reasoning process requires both effective semantic embedding and fine-grained visual...

The terminal communication access network is an important part of the power communication network and is the extension of the backbone network, which will provide a comprehensive communication support for the smart grid construction. Firstly, in this paper, technical characteristics of TD-LTE power wireless...

Impregnated diamond bit are widely used in very difficult formation drilling. In the drilling process, the diamond particles embedded in the impregnated diamond bit will inevitable wear, loss and adhesive wear. In this case, the bonding between diamond particles and matrix and the diamond performance...

As an important part of broadcast business, Broadcast audio quality testing guarantee the broadcast quality, it can find out audio quality problem during broadcasting process such as stereo phase inversion, too large of left and right level difference, mute and overload etc. The traditional detection...

The dust removal system of a certain power plant was controlled by omron programmable Logic controller (PLC). It needs to be included in the master control system DCS (distributed control system) in order to fit the request of all control systems integration. Using a network protocol converter realize...

At present, from the selection of the chip to the molding of the product, the embedded CNC system will encounter various problems, such as insufficient performance of the processor, hidden dangers of the physical communication scheme between the chips, insufficient reconfigurability of the platform,...

In this paper, the operational capability analysis method of weapon equipment system oriented to multiple information is constructed by establishing the network model of weapons and equipment operations. Through the establishment of weapons and equipment for the effectiveness of network multi-information...

To take into account of frequent update, efficiency and query capability, a new full-time index structure was proposed with help of one-to-one match between Quad-tree nodes and GeoHash codes, named GQ-tree, which supported moving objects updating frequently. An efficient index update algorithm based...

In this paper, we design a mobile terminal campus comprehensive service system, which based on Android, and combines HTML, PHP scripting language programming, Java object-oriented programming, as well as using Phonegap open source framework, and use the MySQL user database design. From function, form...

In order to improve ion implantation and deposition signal generator to make it more stable and convenient, take advantage of the great anti-jamming characteristic of PLC and the convenient usage of touch screen, use the pulse output and high-speed counter ability of PLC and communication ability of...

In recent years, with the rapid development of wireless mobile network and smart phone operating systems, various social software based on wireless Internet has emerged one after another. Current popular social software such as QQ and WeChat have become important tools for people to meet new friends....

In the paper we tried to depict the process of creation of autonomous mechatronic oil extraction production (AMOEP). Basically we propose that in its membership AMOEP includes a variety of well agents (WA) of different purposes to be proceeded. The key point of such AMOEPs must be a controller, which...

With the development of information technology, for the outspread need of management function of China Tobacco Zhejiang Industrial, to reinforce company standardization management is an important way to improve company market competitiveness, and realize cost decreasing and benefit increasing. Aim at...