In traditional vacuum resurgence control process, there are some problems such as insufficient moisture regain, unsatisfactory moisture content absorption and large steam loss. In order to solve these problems, we put forward the vacuum pre-conditioner’s thermodynamic parameter model to control the vacuum...

For the problem of speed control of passive training in lower limb rehabilitation robot, a control strategy based on fuzzy PID is proposed. Firstly, the trajectory curve of the position was derived and the fuzzy controller was designed. The kinematics model and the simulation model of the controlled...

A type of equipment fire control system is the core component of the equipment. Real training is often limited by equipment cost, training site, training weather, personnel quality and so on. This requires pre virtual training before the actual operation. In this control system, how to realize the various...

This paper investigates a class of dual loop networked control system with different sampling rate. Smith predictor is used to eliminate the influence of time delay. However, uncertain time-varying delay and different sampling rate in the actual production process make the system with conventional Smith...

The research on the control model and simulation platform of rotary kiln burning zone temperature is the basis of automatic control and process optimization of cement clinker sintering process. Therefore, based on hybrid system theory, thermal regulation, and least squares method, the control model of...

The traditional brushless DC motor PID Control of double closed loop has a long adjusting time, large overshoot and especially when the motor model parameters have changed , the motor’s control system is unstable. To solve these problems, we propose a speed regulation method based on self-tuning PID...

According to the feature of huge data, massive files and complex handling in massive e-documents archiving, an auto archiving and burning system is developed. The multi-mission parallel mechanism based on multi-thread pipeline would solute the problem of resource competition by taking full advantage...

In adaptive medical ultrasound imaging, the performance of the adaptive beamformer directly depends on the estimation of the spatial characteristic of the noise and interferences. Accurate estimation of the array covariance matrix leads to significant improvement in image quality compared with non-adaptive...

Since the first office automation planning conference was held in 1985. OA has made new changes and developments in the depth and breadth of application contents and IT technology applications and become the indispensable core application system of an organization. This article will use OA system to...

Accurate translation and robust scale estimation are two challenging problems for visual object tracking. Many existing trackers use some feature extraction methods and the exhaustive scale methods to solve above two problems, respectively. This paper continues to discuss above problems in the tracking-by-detection...

The traditional mechanical plating method is not suitable for parts of big bulk and of complex surface. In order to overcome above shortcoming of mechanical plating, a novel wet ultrasonic mechanical plating process was present by integrating the theories of mechanical plating and ultrasonic shot peening....

Mechanical manufacturing technology courses need to master the basic characteristics of a large number of mechanical parts. However, the diversification of parts and the modernization of design are hard to satisfy the growing desire of students. This requires a new method to replace the traditional mold...

The main purpose of this paper is to study the location calibration of 3-PPR high precision robot platform. The conventional precision calibration method has certain limitations, This paper adopts adaptive grid method for machine vision calibration, When the precision requirements are met, the mesh is...

In response to the complex process and the lack of response to capability requirements of operational concept design, this paper proposes a conceptual design method for weapon equipment system-of-systems based on capability requirements. The operational concept design is divided into two parts: “operational...

The foreleg mechanism plays an important role to carry out climbing stairs and crossing obstacles for wheelchair climbing-stairs. Multi-sensors are placed on different site of the foreleg mechanism, and their measurement values timely decide and control the foreleg position and posture change. The driver...

This paper designs a remote data monitoring system for intelligent low voltage circuit breaker. Data collector collects various state parameters such as current, voltage and opening or closing state of each phase from intelligent low voltage circuit breaker by RS485 bus and uploads to master station...

In order to meet the requirement of stability, real-time performance and miniaturization, a missile-borne computer with DSP and FPGA as its core processor is designed. FPGA communicates with DSP via EMIF for extension of various peripheral interfaces, including the serial port, AD converter and IO operation....

Cloud computing can provide scalable computing power, storage space, and information services for a variety of applications. It has dynamic scalability, fault-tolerance and availability, which require a large number of nodes to provide support. Providing corresponding compensation mechanisms for the...

Wind energy, which has a high potential in renewable energy sources, has a capacity to meet the rapidly growing energy need. In a wide variety of fields and different types of turbines, the wind energy we use can easily be used in low-voltage devices such as simple household appliances. Within the context...

Recently, indoor positioning has been actively researched, and methods using Wi-Fi have been widely studied. However, indoor positioning using Wi-Fi has a lot of problems. Therefore UWB is an alternative method. UWB is suitable for indoor positioning because of its high multipath resolution and good...

At present, various colleges and universities have extensively carried out practical training courses for industrial robots. If students are trained entirely in actual equipment, they will be limited by the number of venues, equipment, complex structure, operation frequency and use safety. This requires...

With the progress of human society during the 21st century, the continuous innovation and development of networking, digitization, intelligence, information and automation have promoted the emergence of smart cities. At present, China is in an essential period of new urbanization and the rapid development...

A feature recognition technique is the intelligent interface of CAD/CAPP. Through extracting and recognizing the tolerance and surface roughness, the design features such asholes, steps and other design features in a 3D model of parts, the CAD/CAPP can be combined efficiently, and then the CAD/CAPP/CAM...

Desktop based virtual maintenance training system for military aircraft system was studied to make the developing easier. First, the virtual maintenance scene was simplified and rendered in real time. Second, the mechanical assemble relationship and sequence was modeled by petri network. Third, different...

Collaborative filtering recommender systems traditionally recommend products to users solely based on the user-item rating matrix and are simple, convenient to use. In this paper, we focus on two main issues, data sparsity and scalability. Data sparsity can lead to inaccurate recommendations, while scalability...

Aiming at the problem of the invisible area in a manual assembly process, this paper proposes an invisible area assembly scheme based on augmented reality technology. Different location tracking methods are put forward according to whether the objects to be assembled are visible. At the same time, the...

An improved non-local mean ultrasound image denoising method is proposed to solve the problem of poor effect of traditional image denoising algorithm on ultrasound images. In this method the non-local mean filtering algorithm is improved by using the gamma distribution noise model and image block matching,...

Beam Structures are crucial components in constructions, and damage identification of beam structures is an important research filed in engineering. Swarm intelligence algorithms have been widely used in structural damage identification for the past few years. The Big Bang-Big Crunch algorithm is one...

In the data processing with carrier phase, how to obtain the ambiguity value of the carrier phase accurately and efficiently is an important problem in the precision positioning data processing. This paper summarizes the processing of the integer ambiguity data.. In this paper, integer least squares...

This paper presents a bi-normalized frequency estimation algorithm which contains a two-dimensional state estimation equation and a one-dimensional frequency update rule coupled with it. The robustness of the algorithm is that the frequency estimation convergence is no longer subject to the actual value...

Aiming at the problem that the standard particle swarm optimization algorithm has a slow convergence speed and easy to fall into the local optimum, the method of region-division is introduced to dynamically adjust the inertia weight and learning factors of the particle to achieve the balance between...

Satellite communication system design engineers are often concerned with the attenuation caused by propagation in rainfall while ignoring the influence on microwave propagation on satellite-earth link in satellite communication on cloudy, foggy or rainy days. This paper comprehensively gives a calculation...

Aiming at the uncertainty of enemy target cluster number in aerial targets clustering process, an improved affinity propagation(AP) algorithm is adopted to determine the target cluster number and clustering result. Firstly, Between-Within Propagation(BWP) index is used as the measure of cluster effectiveness,...

In the tire production line, it is usually necessary to trim the blank tires to finished tires according to the sharpness of tire angle. If the determination of tire angle is made by mistakes, it will cause the tire to be a waste for choosing a wrong scraper. In order to determine the sharpness of tire...

Limited by various conditions, the features of mammography images are difficult to extract, so it is hard to classify them. The paper proposed a method based on deep learning method to classify benign and malignant mammography images. The convolutional neural network concludes four convolution layers,...

This paper applies transferring learning to facial colorization and The main body is based on DNN. However, considering the less complexity of the dataset and the equipment constraints. We extracte global features from VGG16 pre-tained model instead of Inception-resnet-v2. In adition ,we cmpare the test...

This article achieved the large-scale Mongolian text corpus from CCTV and some other news websites, and conducted statistics and analysis on the Mongolian syllables in this text. From the statistics and analysis, we can see that the possibility of the co-occurrence of the different Mongolian syllable...

Musical expression of piano performances by some distinguished pianists has been analyzed by the authors. In the analysis, the tonal tension and attraction models have been used, those are introduced in the literature of the generative theory of tonal music named “Tonal Pitch Spaces” by F. Lerdal. From...

Rolls are the most important parts in the steel production industry. The roll lifecycle management method is put forward in this paper, so as to effectively control the production cost of rolling mills and improve the quality of rolling products. RFID (Radio Frequency Identification) technology and roll...

In this paper, in view of laser cladding of the iron base materials, new method for laser cladding of iron-base materials were proposed. Firstly, heat transfer mechanism of the laser cladding process and metal solidification theory was studied. Second, by laser cladding test bench, laser cladding experiments...

In the paper, a kind of SiO2 aerogel based on coal gangue was synthesized and its physical properties were investigated. The properties of the composite mortar prepared with the synthesized aerogel as aggregate were further discussed. The results showed that the aerogel gained has a specific surface...

The permeability, compressive strength, splitting tensile strength and frost resistance of high performance pervious concrete specimens with different pore size and distribution were studied under different curing mechanisms. The results show that the permeability coefficient of curing 7d test specimens...

To quantitatively characterize the stored energy in the rock. In the elastic range, the fluctuation characteristics and energy of marbles, granites, and red sandstones subjected to different stresses were studied, and the variation laws of wave velocity-stress, stress-energy of three types of rocks were...

The heterogeneous plastic deformation characteristics of HPT processed Interstitial-free steels (IF-steels) and the effects of friction coefficient on heterogeneous plastic deformation characteristics were investigated through the effective strain distribution on the transversal plane of HTP disks. Using...

The objective of this study is to preliminary explore the effect of wear on high temperature oxidation performance of U71Mn rail steel. The specimens was tested at 500 N on abrasion testing machine, and then performed at high temperature in the furnace. The surface and cross section was investigated...

Carbon fibre composite rod (CFCR) is an important part during the design of Aluminum Conductor Composite Core (ACCC) conductor. CFCR is used to improve the bearing capacity in order to make sure the safety of electric power supply. The flexural failure of CFCR could lead to the outage of electric power....

Finite element is adopted for simulating power transmission line tower, cable element is used for simulating power transmission line wire and ground wire, tower element is used for simulating insulator on the basis of finite element analytical method in the paper. A power transmission line solid model...

The variable-lead spiral pair mechanism is applied to the subway gate, which can improve the stability of the mechanical structure operation. This paper analyzes the variable lead spiral substructure. By the dynamics software, the motion characteristics of the lead spiral substructure is analyzed, and...

The analytic function of complex variable including a material parameter is analyzed fully. Typical crack model is considered to orthotropic materials. By constructing new stress function, the mechanic analysis for crack-tip singular stress field is carried out. Type boundary problems of partial equation...

We intend to exploit the vibration status such as the resonance existed in a faulty bearing-rotor system on signal acquisition for diagnosis in this paper. We establish a symmetrical bearing-rotor-pedestal system to do the dynamic response analysis. The theoretical analysis indicates the resonances excited...

The springback phenomenon in sheet metal stamping will lead to problems in subsequent assembling, and cannot guarantee parts dimensional accuracy, it is necessary to research spring-back parts effect in part stamping molding. Due to the high strength steel has a high yield strength, the springback after...

In recent years, the high strength steel has gained great attention. And springback is an obvious drawback. In this study, the analysis was conducted on the relationship between thinning, springback and blank holder force, friction coefficient. The central composite design of tests and finite element...

In this study, the high strength steel DH780 produced by Shougang Group was used to form a traditional part B-pillar. The effect of process parameters, namely blank holder force and friction coefficient on the formability was analyzed. The decrease of BHF and friction coefficient can increase the formability....

The development of suspended armature valves is a trend in the future spacecraft propulsion systems. Compared to solenoid valves, the suspended armature valves have no friction surface, which eliminates the sliding interaction and the associated generations of particulate. Besides, the structure is more...

The full united frameworks (FUF) of transformer substations belong to wind-sensitive towering structures, and wind load is a decisive control load. Wires, lower leads, and busbars hang on united frameworks. Such suspension component will inevitably affect the wind-induced response characteristics of...

A-T model of the modified hydrodynamics, is widely used in metal projectile and target materials, good prediction accuracy for penetration depth in penetration process. But the Rt (target defense force) is determined relatively difficult, lack of real physical meaning to widely accepted the Rt of calculation...

In this paper, the ansys stress simulation technology under workbench environment is applied to the normal stress on the cross section analysis of pure bending of curved beam and beam deformation analysis, the results of simulation image intuitive shows the normal stress distribution on cross section...

This research has been focussed on to the design and development of sustainable ozone layer to restore back global warming potential into original conditions . The Sustainable ozone layer is a kind of new Ozone layer development that meets the needs of the present generation’s ultraviolet radiation protection...

Based on the situation of the development of new energy automobile industry in Sichuan Province, this article analyzes the problems in the development, demonstration and popularization of new energy vehicle industry. Combining Sichuan's “13th Five-Year Plan” strategic emerging industries planning, it...