As the world urbanizing rapidly, the task of achieving smart growth in cities is becoming even more important. In this paper, we will propose a "Smart Growth Coefficient"(SGC) and analyze it by Multi-level Fuzzy Evaluation System. We first define SGC to measure the extent to which the growth plan of...

Currently,there are some limitations of twxisting ways of obtaining the key parameter of quad-rotor aircrafts—mechanism analysis method and experimental method,that the first one is not adapt to varied environment and need a large amount of computation,the second one especially refers to wind tunnel...

Flexible wing aircraft with the function of active deformation can improve the aerodynamic characteristics by the adaptive deformation of the airfoil, to maintain its own flight stability. In this paper, the active deformation of the flexible wing is realized by the piezoelectric material actuator, instead...

Most of the current clutter simulations are based on theoretical models, radar emission wave and undulating ground, vegetation cover and other factors considered less, this could lead to lower degree of simulation. This paper presents a clutter simulation method based on digital terrain model, combined...

In this paper, the principle of time-domain two-dimensional acquisition method is described, and the effects of symbol offset and Doppler frequency estimation error on the correlation peak are analyzed in detail, so as to determine the size of pseudo-code phase and Doppler frequency step. It is of reference...

When the spacecraft is moving at high speed, the signal obtained by the control station always exists Doppler shift, which is reflected in the DQPSK signal. In order to make the digital signal demodulate the correct information, this paper analyzes the influence of Doppler on demodulation, and studies...

The scattering characteristics of targets are important factors influencing the combat effectiveness of the seeker. First, RCS of complex target is calculated by combining PO and MEC based on surface elements. Then, by establishing missile-target intersection model, kill probability and the curve of...

Complied with HLA specification based on MAK- RTI software for run support, the highly stable and extend-able ballistic missile against large ship simulation system is designed and implemented. The system simulated formation of large ship, satellite recon, command of battle and the process of missile...

In order to solve the problem of the enterprise website access efficiency gradually declined, and resuting in poor quality of integrated service,This paper introduces the systematic and operability website performance optimization in detail, and then discusses the methods and techniques of the website...

Based on the frequency characteristics of pulsed radar fuze signal and general wireless communication signal, the paper tries to analyze the interference that the latter on the former. By analyzing the working principle, working characteristics and interference environment of the pulsed radar fuze system...

The vibration of plunger pump to produce the serious influence its service life, through the plunger pump vibration test of the testing system can understand the vibration of the plunger pump, analysis to know the source of the harmful vibration, thus to find a way to eliminate its impact, has important...

In recent years, the rapid development of air transport industry has brought tremendous benefits to airports. But at the same time, complicated passenger flow also brings new challenges for airports. The greatly increased airport traffic leads to passengers' long waiting time as well as a drop in the...

In this paper, the low-order harmonic elimination problem of H-bridge unit number 3 is explored with the cascade H-bridge converter. The initial value is calculated by using the method of vertical bisector reference sinusoidal signal, and then using the principle of least squares The Gauss-Newton method...

We establish the metric model, Smart Growth Metric (SGM). It is divided into Economic Status Metric system, Social Status Metric system and Ecological Environment Metric system. Each system consists of several indicators. Based on the ten principles of smart growth and 3 E's, we select the indicators,...

Describes the origin and development of the vehicle parking assist system, summarizes the current parking assist system application and research status, and technical parameters and characteristics, analyses the advantages and deficiencies of the existing parking assist system, and its development prospect.

To deal with soldiers who are wearing the bulletproof helmet and bulletproof clothe on the modern battlefield, the design idea of the individual small caliber projectile using arrow shaft warhead damage element is put forward, and three different structures of arrow shaft type damage element are designed....

Artillery barrels gradually ablate wear and tear in the shooting process, which reduced its internal ballistic performance and severely limited the artillery power and service life. In this paper, the mechanism of gun's ablation and wear is analyzed from three aspects: heat factor, chemical factor and...

By changing the mass fraction of Ni in the (Ti+B4C) reaction system, TiC-TiB2 composite ceramics with different Ni mass fraction were prepared by SHS centrifugal casting. TiC-TiB2 composite ceramics are composed of a lot of TiB2 platelets, irregular TiC grains and a few of intermittent net Ni alloy by...

For shorting the shifting time and improving the vehicle acceleration, it is necessary to develop an excellent control strategy of electing and shifting. In this paper we developed the strategy of the electric shifting actuators based on fuzzy PID control and established a fuzzy dual closed-loop PID...

The charging pile is influenced by electromagnetic coupling interference factors of primary coil and secondary coil of the electric vehicle charging, resulting in excessive demand on the parking position, in order to solve this problem, a power transmission optimization control technique of electric...

Based on the JC method (reliability calculation method) proposed by the Lcwick et al. [1] and recommended by the Joint Committee on Structural Security (JCSS) and the fourth strength theory, the reliability design formula of the thin-walled cylinder of pressure vessel is deduced. And the Monte Carlo...

This precise vertical machining center is a new type of product structure. In order to improve the performance of the machine tool, two kinds of bed structural design schemes are proposed. The bed structure of the first scheme is tilted, and the second scheme has a flat bed structure. The two kinds of...

In order to determine the processing capacity of the airflow and the air conditioning capacity of the position engineering, the heat transfer process of the air and the wall in the project is analyzed. The actual arch engineering is simplified into equal volume square and spherical engineering respectively....

As an important connection part of machine and foundation, the machine-foundation interface have a critical effect on the working accuracy and life of whole machine. The machine-foundation interface is generated by two kinds of materials (steel and concrete), a crushed theory of asperity on concrete...

Many kinds of actuator-based haptic robots have been developed and utilized in rehabilitation to improve and strengthen stroke patient's motor capability. Now a new concept of HMCR (human-Machine Cooperative Robot) is proposed in this article, which works with the joint efforts of human user and the...

Inflatable fabric membrane has been typically used in aeronautics and astronautics, large-scale construction and other fields because of its advantages: light weight, low transportation costs, and ease of deployment and storage. However, a natural challenge is the accurate characterization of the mechanical...

Based on the phenomen of personal safety accidents of punching machine , this paper analyzed the factors of press working process personal safety incidents , described and compared the advantages and disadvantages of the safety device at this stage. Summarize some of these security issues still unresolved...

A novel micro-step rotary actuator worktable is presented in this paper.The worktable uses the symmetric structure design and works with an inside clamping of the stator, controlling the axial positioning of the motion conversion mechanism and reducing the deformation of deviation of the axial at the...

The problem of weld formation in vertical welding is the difficulty of automatic welding technology of welding robot, which is easy to produce welding deformation, the welding seam is not fused, and the height is too high. In the welding process, to take effective measures to effectively solve the welding...

This paper designed an indoor environment monitoring system, in order to enhance the quality of indoor air. This system can accurately measure the temperature, humidity and the concentration of oxygen, carbon dioxide, carbon monoxide, formaldehyde, PM2.5 and PM10 using the sensor array and transfer the...

The choosing of dam location is a very important part of water conservancy project. Through the scientific dam location selection, the quality of water conservancy project can be improved [1]; In order to introduce the process of dam location selection. Take an example of the Kariba dam, picking 24 possible...

On the basis of Probability Distributions and Queuing Theory[1-4], two kinds of new toll stations are designed, which are the "shunting" toll station and "series parallel compound" toll station. And this article calculates the average queue length, the average waiting time of vehicles, the throughput...

Measuring the water supply capacity is very complex with many impact factors. It is difficult to find the main factors. After constant comparing and calculating, I finally determine 12 factors have greater impact on sustainable development. Due to the influence factors is very complex and linked between...

First,we analyze the effects of the bubble and human action on the model.Finally, we discuss the change of water temperature and plan when room temperatures changes.We take the water as surface layer and inner layer.There is static air storing in bubble.According to formula of thermal resistance of air...

According to the problem that the current residential space tension, more and more folding furniture are produced. In this paper, the dynamic equation of the folding table is obtained by using geometric knowledge and nonlinear constrained optimization model, and it illustrates the curve fitting model...

The Chinese government has formulated a policy that, in principle, is no longer a closed community. The existing closed area and unit compound should open gradually. The policy has aroused widespread concern and discussion. We use the Dijkstra algorithm to simulate the district road network. Based on...

It is well known that the Logistic model is mainly used in epidemiology. The more common situation is to explore the risk factors of a disease and predict the probability of occurrence of a disease according to the risk factors. However, we found that the Logistic model is not only significant in epidemiology,...

In this paper, we established a model to discribe the how bathtub water temperature changed over time, and put forward a suitable way of adding hot water. We divided the bath process into three stages: cooling stage, heating up stage, and constant temperature stage. At the cooling stage and heating up...

This paper summarizes the composition and harm of automobile exhaust gas. It also briefly marshals the development and main components of automobile exhaust purification catalysts, of which three way catalyst is emphatically introduced. In this paper, some problems existing in the current conversion...

Overhead transmission line maintenance, testing and inspection work part, all need to climb to the top of the pole, and irons is one of the essential tools for climbing pole. At present, some traditional irons safety problems in construction safety is more and more attention, it is bound to improve the...

This paper mainly focuses on how to maintain the water temperature close to the initial temperature while bathing. Using law of energy conservation, we establish differential equations to figure out the function between water temperature and time. After adding 40oC hot water to the tub, the water temperature...

Considering the Kariba Dam's current dangerous situation, our team primarily analyses the three available options, and then explores the effect from a system of dams to the Zambezi River.a Dam Site Selection Model(DSSM)is established by constructing two initial sub-models named Basic Location Model (BLM)...

Based on the Queuing theory and Cellular Automaton model, we design a three-dimensional toll plaza model that has two decks to reduce the congestion and increase the throughput. In order to describe its structure more clearly, we draw the stereo model and plans of it by using Pro/E and CAD. VISSIM has...

This paper mainly studies the influence of the closed area open to the surrounding city road traffic, a traffic impact area road network evaluation system and analog system analysis model, using the method of circuit simulation system was solved by the analysis of the traffic network.The closed area...

The design of the mooring system is to determine the length of chain type, quality and weight of the ball, the tilt angle of the buoy and draught of the swimming area and drums as small as possible. In this paper, the optimal design scheme of mooring system is presented based on mechanical analysis....

This paper introduces the reasons and classification of wireless space fading, statistical characteristics of different types of channels. Through the analysis of reentry channel characteristics, we select the two pathes frequency selective slow fading channels.The spectral density function of Doppler...

In this paper, the society's information network simulation model is established to analyze how information flow, how public interest and opinion can be changed through the information networks, how information value and other parameters can be used to spread information and influence public opinion,...

The predict communication situation in 2015 is obtained based on the normal distribution of the market share percentage of each kind of information transmission mode. The prediction result is compared with the reality in 2015 then. The comparison result shows that our model have great reliability since...

With the development of science and technology, energy has been widely applied in various kinds of fields. Some studies have shown that the pumps and fans' consumption of electricity is about 6.1% of the country's electricity generation annually. The problem of low efficiency is serious. Nowadays, power...

It is not a pleasant experience to queue for hours in airport security. Our mission is to model the long queuing time of airport passengers. We established queuing models to identify the bottlenecks that disrupt the passenger throughput.

Polylactic acid (PLA) fiber is a biodegradable material, and can be used as an alternative to petrochemical-based fibers. Printed PLA nonwoven products have a wide market. The pigment inkjet printing of PLA nonwovens suffers from some defects such as poor outline sharpness of patterns, poor rub fastness,...

With the increasing demands of car ride comfort, automobile brake noise has become a serious concern, so reducing automobile brake noise has become the primary task of automobile manufacturers and parts suppliers. This paper briefly describes the classification of automobile brake noise, the mechanism,...

A chlorogenic acid mediated synthesis of silver nanoparticles (AgNPs) from silver nitrate solution was investigated, and the preparation conditions of AgNPs were discussed. AgNPs could be rapidly prepared in a weakly alkaline condition, and the resulting AgNPs had an average size of about 35 nm. When...

The present review gives an overview of the highlights of more than 10 years of research on formation mechanism of ordered oxide structures (nanotube layers, hexagonal pore arrangements) that are formed by self-organizing anodization of metals. In particular, we address the questions after the critical...

The research on photovoltaic power generation is an important part of clean energy .In order to improve its efficiency, this paper proposed an adaptive variable step - length hysteresis control method, based on the traditional MPPT control. The duty cycle disturbance step size is determined by analyzing...

The oxidative polymerization of dopamine for the functional surface modification of materials has drawn extensive attention. In this work, the coloration and functional modification of silk fiber by dopamine polymerization were studied. The conditions of dopamine application were first discussed in the...

This system is a ZigBee-to-Wi-Fi wireless gateway that implements a WSN/ZigBee seamless, wireless connectivity to WLAN. It will help ZigBee devices communicate with standard equipments via wireless medium, vice versa. Hardware system is composed of LM3S9B96, CC2520 and Wi-Fi module. Z-Stack is TI's ZigBee...

In this paper, we study calibration of all components in optical measurement system, which is a fundamental issue in optical measurement. For physical components we use Zhang's method to calibrate the binocular cameras. And we utilize Zhang's method in fringe projection profilometry to calibrate the...

In this paper, after introducing several methods of measuring weak current, a weak current measurement system is designed which consists of an ultra-low bias current operation amplifier ADA4530 based on the trans-impedance amplifier topology, a secondary amplifier, an eight-order Butterworth low-pass...

In order to study the driving vibration characteristics and off-road maneuverability of tanks, the topology of tank system is analyzed by virtual prototyping technology and multi-body dynamics modeling method. The dynamic model of tank system is built. The dynamic simulation is compared with the actual...

Defect identification is the fundamental prerequisite for the vehicle recall, the previous precedents can serve as the most direct and effective evidences for the following defect identification. This paper explores a defect identification method on the basis of case-based-reasoning, and develops the...

In order to analyze the performance of the single leg of the electric vehicle in depth, a simulation method based on the digital virtual prototype software RecurDyn is proposed. The kinematics characteristics of single leg of the experimental Wheeling & walking electric vehicles are studied systematically....

In order to solve the problem that the output speed of the CVT is too high, an optimization of Pulse CVT Based on Improved Particle Swarm Algorithm is proposed. Firstly, an improved particle swarm optimization (PSO) algorithm is proposed, which can improve the accuracy and efficiency of the algorithm...

Chaos is the uncertain phenomenon of certain systems in evolution, while entropy, as the best quantization parameter of uncertain property, is very important for entropy properties comparison of different one-dimensional chaotic maps.Compare entropy properties of different classical chaotic maps separately...

In this paper, we further study some sufficient conditions for complete convergence for weighted sums of arrays of rowwise negatively dependent random variables with non-identical distribution under some weaker moment conditions. Our result generalize and improve the corresponding result of Wang et al....

Measuring soil water content, soil water repellency and analysis spatial variation of the sugarcane land by combining classical statistics and geo-statistics, in this article. The results showed that: the means of soil moisture content and soil water repellency were smaller, in the case of long time...

Proteins possible effects on roots have received little attention. Here, we investigated how externally supplied protein influences root formation of Cinnamomum camphora cuttings. Cultivation matrix was composed of vermiculite, perlite and river sand based on the proportion 2 2 3. Softwood cuttings were...

In order to achieve the test of function and strategy of pure electric car vehicle control unit(VCU) better, this paper designs a hardware-in-the-loop (HIL) test system for VCU based on NI-PXI platform. Firstly, expounding the principle of HIL testing technology and introducing the HIL test system plan...

The rapid development of the subway contributes to public transportation, but at the same time the emergency evacuation of subway traffic puts forward higher requirements. At present, most of the studies on the emergency evacuation of the subway have neglected the differences in the mobility of different...

With the rapid development of modern manufacturing industry, Model Based Definition has been widely concerned in aerospace, and carried out in-depth promotion and application. A MBD information extraction method based on STEP AP242 is proposed to solve the problem that there are heterogeneous hardware...

Manual focus is general adapted in the traditional hardness tester, while the manual focus depends much on the tester, and the precision of the manual varies from tester to tester. Based on the basic principle of image processing of automatic focus, this paper presents auto-focus system applying a chip...

Induction integrated starter/generator(ISG) of automobile has two function, one function is used as starter motor ,the other function is used as generator. By using this machine, the special starter can be leave out. The configuration of automobile can be simple and reasonable. The control platform of...

The change of reservoir water level will affect the stability of the water, mainly in the soil pore water pressure changes and slope sliding surface parameters of the two aspects of weakening. The stability of the slope is analyzed, the results show that the stability of the slope due to the existence...

Rapid construction of electric power systems leads to a large increase in quantities of network nodes and data, complicating network reconstruction issue significantly. However, the traditional serial algorithms can not reach a satisfactory computation speed; while some proposed parallel algorithms prior...

In this paper, the statistical characteristics of complex networks are introduced, and basic four kinds of models of complex networks are analyzed. Based on the theory of complex network, it is carried out about the research on the three networks such as road network, bus network and track network in...

With the continuous development of social modernization, the requirements for urban land resources become increasingly urgent. Considering that there is no specific measurement of the compactness of urban spatial form, this paper set up a new model, which graphically defines the concept of population...

In recent years, the urban planning theory of Healthy Growth has getting more and more attention, due to the situation of increasing urban population. To better quantify the healthy growth degree of a city, we build an AHP based Evaluation System of Healthy Growth. Firstly, we classify and quantify the...

Because single energy storage element is difficult to meet the requirements of system for the power density and energy density, this paper uses two energy storage elements, including lithium battery (LB) and super capacitor (SC), to constitute hybrid energy storage system. When bus voltage fluctuation...

This paper is based on the traditional wind-storage combined power generation system. A two-dimensional cloud model is used to control the variable weight filter to analyze the relationship between filter time constant, energy storage capacity and power fluctuation. In order to take the battery charge...

in recent years, the research and application of welding robot technology has made many outstanding achievements in seam tracking, off-line programming, path planning, intelligent control and so on. With the continuous development of computer technology, intelligent control technology and artificial...

This paper propose a novel algorithm to detect the center and boundary of iris in face images of low resolution for gaze tracking system. The algorithm localizes the eye accurately by face alignments and uses convolution to detect the approximate pixel of the iris center which can determines the iris...

A sensor-less control method of permanent magnet synchronous motor (PMSM) based on sliding mode observer (SMO) is studied in the synchronous rotating reference orthogonal coordinate system in the work. The SMO is proposed under the synchronous rotating coordinate system and in which the sign function...

In order to improve the micro-high-speed centrifugal pump cavitation performance, to understand its internal cavitation characteristics. The internal flow field of the centrifugal pump model established by UG was simulated by CFX software. The performance of the centrifugal pump in different speed, flow...

This paper studies the flexible job shop scheduling problem under the condition that with parallel processes. In this paper, we analyses the characteristics of the process parallelism in the job shop scheduling problem, puts forward the concept of parallel efficiency, establishes the flexible job shop...

This paper is to synchronize the AVI media file on the video player. It is that audio playback clock is used as synchronous clock. It is using FFmpeg to decode AVI video files to get audio and video data, and calculate the audio playback clock to audio playback clock as a reference clock to load video...

With the continuous growth of People's Republic of China's economy, the power industry is also developing rapidly, various voltage level substations have been put into operation, electricity is closely related to people's daily life, at the same time, more and more attention has been paid to the electromagnetic...

Neutron detector performance indexes are the most critical and most direct data which can characterize the detector. In this paper, the mechanism of reaction between SiC and neutrons is introduced; And the experimental platform for neutron detection is set up. Through the experimental study, the neutron...

in this paper, the main control part of the multifunctional intelligent medicine box is composed of AT89S52 microcontroller, ISD1700 voice chip, DS1302 clock chip and so on. The human-computer interaction is achieved by the LCD12864 and independent keyboard, and using the piezoelectric thin film sensors...

In this article, we analyze two conditions of changing of water temperature with time: reducing of water temperature naturally and pouring hot water into the bathtub. According to heat-transfer principles, there are three ways for heat to reduce: convection effects, radiation effects and thermal conduction...

The article introduced a model of water temperature distribution in bathtub. The model can be used to describe the distribution of water temperature in space. Based on the heat-transfer equation while taking temperature of each point in space into account, the authors design a model that can describe...

Mooring system design problem is to determine the anchor chain type, length and weight of the ball to make the buoy of the draft depth and swimming area and the angle of inclination of steel drum as small as possible. In this paper, we proposed the mooring system optimization design by mechanical analysis....

This paper summarizes the current methods for solving micro-channel flows, and the direct simulation Monte Carlo (DSMC) method is used to simulate the Couette flow, which is the most classical gas micro-flow. The results show that the velocity slip is obvious in the transition regimes and the slip velocity...

The educational toys is a kind of integrating educational fun products. All of logical thinking ability, memory, ability, willpower can get plenty of exercise in the process of the children at play. This topic combined with 2-4 years old children's physical characteristics and requirements, according...

With the rapid development of urban transportation in China, public transportation has also become an important way for people to travel. Having a good travel condition has been more and more necessary for the public .How to optimize public transport has become an important issue that we now need to...

This paper analyzes and evaluates the efficiency of bus lines from the aspects of line layout, hardware facilities, passenger's comfort, convenience and vehicle's speed. We use DEA evaluation method based on AHP constraint, through multi-objective decision model to decompose the complex issues into parts.

Mars is a planet of mystery and temptation that attracts many science fiction enthusiasts. Migration to Mars has been the topic of many fiction films for a long time. As the first successful Mars landing, this fiction seems to have the chance to realize.First step, we defined some parameters that connect...

New technologies, including personalized artificial augmentations units, will soon enable humans to inhabit manufactured cities on Mars by 2100. The first wave of migration, called Population Zero, will include 10,000 people.Population Zero aims to have optimal conditions in many workforce and social...

A PSD signal acquisition and processing system is designed based on the new single-chip stm32 and the segmented psd, and the data display interface circuit is designed by using the liquid crystal display module for the PSD signal output characteristic and the portable application in engineering practice....

In this chapter, the design of the refrigeration unit with the cooling capacity of 120W in the sightseeing beach is used to calculate the lighting area and the collector power of the vacuum tube collector from the solar radiation incident on the solar vacuum tube collector. The design principle of the...

Based on Cellular Automaton (CA) and Monte Carlo method, this paper constructs a model to discuss the problem of merging after toll, and designs the shape, size, and merging pattern of the toll area. Firstly, the movement of the vehicle is broken down into three stages to establish the corresponding...