Structural strength and stacking compressive performance of packaging box is an important performance index. Finite element analysis on structural strength and stacking compressive performance was completed by ANSYS Workbench for a new type of LLDPE packaging box, and the strength of packaging box was...

An efficient SAR image fusion algorithm for multi-band SAR images based on tetrolet transform is proposed. Tetrolets are Haar-type wavelets whose supports are tetrominoes which are shapes made by connecting four equal-sized squares. Firstly, the multi-band SAR images can be decomposed into low-frequency...

A driving simulator was set up for analyzing driver’s reaction time when driving on urban road, including reaction perception time, decision-making time and operation time. 28 participate drivers were recruited for the simulated driving test,Results show that the best fitting relationship between driver’s...

The exhibition logistics, which generally deal with set-up, breakdown, transport, and storage to ensure that all specific exhibition requirements are met. It is very special from traditional logistics service that its transportation distant is very short and transportation cost can almost be ignored....

The magnetostrictive linear displacement transducer is a kind of transducer that can calculate the distance between the measured point and the receiving point by measuring the time difference between the excitation and the receipt of elastic waves. This paper describes research work in a kind of magnetostrictive...

When many people are still praising the amazing screen of new iPad, a kind of imaging technology with twice higher resolution ratio, 4k, enters into our sights. At present, SONY, Canon, Toshiba, sharp, JVC have released 4k video products, including flat-screen televisions, monitors, video camera, projector...

This paper presents the design of airborne flight data recorder based on the ARM Cortex-M3. Aiming at the growing complexity of flight parameters and the increasing amount of data storage needs, we propose the method which uses a SD card as recording body and STM32F103ZET6 as the CPU for the airborne...

Networked monitoring and control system of tyre building machine is a LAN management system characterized by possessing servers and multiple clients, which are developed by LabVIEW, the virtual instrument development platform and combining with network information technologies such as TCP/IP and OPC....

Traditional control strategy study of the multi-axial electro-hydraulic shaking table(MAEHST) is based on linear model, ignoring the coupling and nonlinearity factors, which results in the waveform distortion and the control precision. To overcome these limitations, a model considering the hydraulic...

This paper studies a kind of grading system of real-time detection for head of garlic based on machine vision. The system, which consists of transportation system of head of garlic, vision recognition system, single-chip control system and grading operation system, can be used to detect the size and...

In order to ensure the quality and stability on the CAN bus products an automatic test system for CAN bus conformance testing is introduced, which allows the tester to execute the test validation automatically. CAN bus test module, test programs and some special test tools constitute the test system....

The paper, for the purpose of studying the relevant factors affecting the projecting velocity and time of video scout projectile, makes an analysis on the stress condition of projecting section of scout equipment, sets up the axial movement differential equation for scout equipment, and analyzes the...

Fluorescence is generally adopted in molecular diagnosis. In order to detect weak fluorescence signal, a weak fluorescence detection circuit has been design based on a photomultiplier tube. The circuit mainly consists of three parts which are a photoelectric converter circuit, a pre-amplifier circuit...

Aiming at the difficulty in X ray diagnosis for the sacroiliac joint’s subluxation, the sacroiliac joint images for a patient’s physiological state and pathological state are analyzed in this paper. We find that the image of the iliac pro-up shift 7mm is similar to that of the pelvic rotation 10º around...

fuzzy factors in the helical gear reducer design are analyzed, and a multi-objective optimization model with minimum volume and maximum bearing capacity is established in this paper. Optimal level cut-set method is introduced to conduct comprehensive evaluation on constraining fuzziness and convert the...

This paper describes the practical application of fuzzy mathematical algorithm in selecting the process dosage of machining with examples. The paper illustrates this method in detail from mathematical model to typical verified examples. Popularization and application of this method can provide a powerful...

The standing wave phenomenon of radial tire occurs when the vehicle speed reaches a certain critical value, this phenomenon can easily result in traffic accidents. In this paper, it completed numerical simulation analysis of standing wave border speed about 195/60R15 radial tire by use of ABAQUS finite...

UAV technology plays an increasingly important role in modern warfare. This paper introduces the development of UAV technology and equipment, improving the situation, pointing out the advantages and importance of the development of UAV technology in modern warfare, focusing on the performance of several...

Fiber Bragg grating is sensitive to temperature and strain, which lead to the temperature compensation must be considered when the FBG strain sensor is applied. Discussed several typical temperature compensation scheme for the applicability of the FBG strain sensor, analyzed the important factors which...

To avoid the disadvantages of the traditional video surveillance, such as short distance transmission and one-way flow of analog signals, a modified visual monitoring platform was developed by the power line carrier communication and the senior multimedia technology in this work. The platform made from...

Cross loading equipment is one of the important test equipments in airplane, aviation and shipping field. It is used to test the performance of rudder used in airplane, ship and missile etc in laboratory. A cross loading equipment based torque motor was processed. This paper gives the design process...

In the paper, by studying the ground water heat pump calculation model, the computing platform for heat pump system was established. Through a calculation case, the fluid temperature of ground water heat pump well side and user side, heat pump power consumption and other data were analyzed by entering...

The main matter of the artificial test is the slow speed in the process of radar equipment maintenance, combining with the characteristic of radar fault self checking circuit, so we designed the portable radar automatic test instrument based on embedded system, this instrument used the ARM9 motherboard...

This paper first introduces the concept of demand side management and its relationship with demand response; and then introduces problems and solutions involved in the process of implying the demand side management, such as the ladder electricity price, classify the electricity users, predict the loads...

Quantitative statistics analysis of lineament has been widely carried out in geological research, and Landsat data have been used most extensively for remote sensing geological investigations. This paper made an interpretation of lineament from Landsat-8 imagery and summarized the direction distributed...

Thispaperintroducesthedisasterresponseresearchstatusquoofimportantloadsindistributionnetwork,summeduptheresearchandpracticeresultsathomeandabroad.Thefocusofthispaperisproposedtheconceptofsituationawareness.Throughcarryingoutsituationawarenessindistributionnetwork,improvethedisasterwarningabilityofimportantloads.Summarizingthedifficultiesweneedtoovercomewhenputthistechnologyintoapplication.Pointingoutanewwayfordisasterresilienceresearchofimportantloads.

Under Sitakeboge’s Stress reaction and equilibrium recovery theory to Social distribution equilibrium failure, this paper proposes a host load balancing control model to each node based on Sitakeboge model under cloud computing. Based on CloudSim simulation software to Job scheduling algorithm under...

The paper based on the analysis of the regional geological background of Maoping lead-zinc deposit and extract alternation information in the area through ETM+ remote sensing image. It used principal component analysis to extract the alternative anomalies.We can research on the alternation anomalies...

In the chemical industry, a large pressure range, relatively stable voltage output DC power supply is often required. This paper mainly studied on the control method of DC conversion circuit. The full-bridge configuration electromagnetic isolation has advantages in efficiency and pressure range. The...

The main gearbox is an important driving force for a pump. It needs to carry out regular monitoring. In this paper, it measures the vibration acceleration signal of a pumping unit’s main gearbox, names them 1# and 2#. After comparing the time course curve and spectral of the two main gearbox, it has...

With the QPMZ - II type gear box as experimental object, according to the failure mechanism and vibration characteristics under actual condition of the gear box, the vibration signals are decomposed into components at different frequency bands and time period by wavelet transform, so that the interference...

EDA is a new technology developed along with the development of the electronic system design technology. This paper firstly introduces the basic characteristic of EDA technology, then took the EDA technology as a development means to realize the design of a digital system, and the system simulation has...

Power grid volatility is inevitable due to its wide coverage, complex properties of users and influence of environment, equipment and human activities. Modern coal chemical industry operates on specific conditions characterized by high temperature and pressure, strong corrosion, inflammability, explosibility,...

The analysis and research inductive AC circuit characteristics for guidingthe use of inductive load equipment has practical significance. By combining experimental electrical theory to explain inductive AC circuit voltage and current relationships, power, influence electrical shunt capacitance of the...

In this paper,a fast and efficient video stabilization method based on speeded-up robust features (SURF) is presented .We adopted speeded-up robust features as feature descriptor,which are extracted and tracked in each frame .After that, we further refined the matching features through RANSAC, estimating...

Due to large search space and multiple peaks of autocorrelation function, fast acquisition of BOC- modulated GNSS signal is a time and resource consuming task. In this paper, a novel hardware architecture for BOC-modulated signal acquisition is proposed. The proposed architecture adopts sub carrier phase...

The ground current would lead to transformer DC magnetic bias in HVDC unipolar runtime, causing the transformer noise increases, increased vibration, overheating and other hazards, adverse affect on the series capacitors and even the grid. It introduces the research background and significance, the mechanism...

Too aircraft hold on the ground not only brings inconvenience to passenger travel, but also increases the operation cost of airlines. Power supply equipment mainly includes APU (Auxiliary Power Unit) and 400Hz electrical power. According to aircraft ground operational situation, a mathematic model was...

In digital electric power metering system, the sampled values of currents and voltages are transferred according to IEC61850-9-1/2 protocol. Quantization error will be introduced because the transferred data bit is limited. The quantization error introduced by IEC61850-9-1/2 is researched. The mathematical...

Smart distribution network gathers massive load data with SCADA system. Bus load forecasting needs to increase the process speed while assuring the forecasting accuracy, to meet the real-time requirements. This paper proposed a fast bus load forecasting method for smart distribution system. This method...

In order to evaluate the quality of the protective films, we built a Spectral-Domain Optical Coherence Tomography System. To get the 2D and 3D image of normal materials and defective materials, and the quantitative analysis has been done. Compared with the parameters provided by the manufacturer, the...

Nowadays, WiFi becomes a popular wireless accessory method to most of us. People use WiFi to interact with the wireless Internet, perform commercial and financial transactions, or conducting recreational activities, etc. Though it offers a more convenient life to people, the strong Electromagnetic waves...

This paper studies the relationship between the fusing characteristics of copper wire and the overload current. Based on a physical model, the fusing curve for the copper wire is obtained. At the same time, fiber Bragg grating (FBG) is used to monitor the temperature change of aerospace conductor. According...

The designing of microwave cavity reactor for microwave metallurgy is usually according to the nature and the dimensions of the product to be processed, the operating frequency, the number of modes and so on. In this paper, the main mode equivalent impedance matching is proposed to design the cavity...

The magnetic control adjustable characteristics of one-dimensional Thue-Morse quasiperiodic structure with nanoparticle magnetic fluid defect local modes are studied by using the transfer matrix method. First, the physical model of one-dimensional Thue-Morse quasiperiodic structure with nanoparticle...

Evaluation of workmanship is usually used as welding quality criteria in bridge welding provisions or guidelines. There is, however, no clear relation between workmanship and welding performance. In some cases, the welding quality criteria cannot guarantee actual performance, in particular for fatigue...

Repair effect by traditional concrete was unsatisfactory on airport pavement due to the weak bonding of old and new concrete pavement and poor crack defects. In this study, which fiber PVA were used as a reinforcing material, it analyzed the repair effect of PVA-ECC with different fiber content in concrete...

Natural smoke extraction strategy in an atrium connecting a subway station and commercial building is numerically studied in this article. Different outdoor temperatures ranged from -10°C to 35°C during the fire-induced smoke development in the atrium are studied in detail. The t-square fire curve is...

By real-time data acquisition of pitching and rolling angle in the process of driving, portable car body posture monitoring system designed in this paper executed the analog-to-digital conversion of these acquisition signals, and displayed the real-time posture of vehicle on LCD after analyzing. Finally,...

In the trend of the mobile warfare, the researching moving base alignment method of vehicle mounted missile is very valuable.A new stable targeting method based on the transfer alignment of speed and attitude matching is proposed to solve the problem of a longer time alignment and a greater impact by...

The military logistics supply network is generated through computer simulation firstly. Then on the basis of the military logistic network, the survivability index and measurement model of the military logistic network is established in topology layer and business layer, providing foundation and basis...

Ocean fisheries environmental information includes sea surface temperature, ocean currents, sea surface height, sea surface wind field and so on. To be more efficient, rapid access to environmental information of ocean fisheries, we designed an automatic management system of data acquisition for its...

This paper makes CNKI database the data source, baed on making 3D printing as the research theme for the literature among the years 2000—2014, do the multivariate statistical analysis on the basis of co-word analysis to reveal the status of current research in the field of domestic 3D printing, to acknowledge...

At present,traditional Space Vector Pulse Width Modulation (SVPWM ) technique has been widely used in the variable frequency speed control system,but this technique makes the system produce components of high harmonic wave at integer times of switching frequency.Thus inverter produces conducted Electromagnetic...

In order to filter out all kinds of interference noises in batching control and improve the precision of the ingredients, a morphology filtering method was used in data processing which is the combination of morphological open-closing and close-opening. When the morphology filter is used to de-noise...

The in-situ ceramics coating were fabricated by the micro-arc oxidation technology in order to improve the corrosion resistance of Ti6Al4V alloy. The silicate electrolyte system was introduced to reduce the applied voltage of the MAO coating. The influence of applied voltage on phase composition, surface...

In order to improve the clarity of degraded image in foggy weather, an improved image defogging method based on dark-channel prior is proposed. The original algorithm is sensitive to bright region and needs more computation time. An improved algorithm is proposed based on the work of previous researchers...

Using Excel to design questionnaire, it is convenient for data collection and statistics, also it is low cost and high efficiency. But it is not easy to design user-friendly questionnaire by Excel. It also brings heavy workload and chance for error injection. To this, one new questionnaire automatically...

With the problem that the pressure of the flexible pipe in aerial refueling was hard to be measured directly by sensors, a pressure measurement algorithm based on support vector regression (SVR) with parameter optimization was proposed in this paper. First, a data model with a large amount of historical...

For the question of incorrect target tracking when a dynamic occlusion occurred between two or more objects within a surveillance video, this paper raises use the optical flow to track pedestrians in partial occlusion and interaction area.We based single target locating and tracking model on the optical...

The furrow opener is the important working parts of the seeding machine. In this paper, we would design the furrow opener of core ploughshare based on many parameters such as the width, the penetrating clearance angle angle, the slope angle. A series of new opener was designed using the uniform design...

In order to improve the performance of propeller the propeller efficiency optimization method under the off-designed conditions were studied. Taking the open water efficiency around the designed velocity of parent propeller as the objective function, taking the radial distribution of pitch ratio as the...

In this paper, the mathematical models of the disturbance signal were to be designed. Adaptive LMS algorithm generalized morphological filter was set up based on the mathematical morphological, and the noise of power quality disturbance signal was managed. The different frequency energy distributions...

This paper simulated and analyzed a circularly polarized (CP) waveguide composite slot radiator at X -band in this paper. According to the radiation principle of the waveguide slot, a composite slot located at the broad wall of a rectangular waveguide, which included a cross-slot and a circular slot,...

Drainpipe transports the production waste water and life waste water in modern urban infrastructure, due to its small branch pipe diameter, it is easy to foul, if not desilting in time will result in overflow of sewage, which not only seriously affect city's appearance, but also cause environmental pollution....

Elevator is a necessity in modern people's life; its vibration is the elevator’s important evaluation index of comfort. Most of the smaller vibration amplitude of the elevator will not pose a threat to the health of passengers and personal security, but once the elevator vibration reaches a certain value,...

Equipped with KATERINA, the buoy provided effective technical platform for on-site rapid monitoring of the marine radionuclide. Performance index and usage in the ocean buoy of KATERINA was introduced. Ultrasonic cleaning method in seawater was developed for preventing KATERINA from biofouling. Marine...

Detection probability of aircraft infrared characteristic signal has an irreplaceable role on finding target. This paper mainly researches on aircraft infrared detection probability under the single background. First, target infrared radiation model is established, and then a weighted calculation method...

Since the parachute descent is more complex, the cost dropped and other tests designed to be very large simulation studies with a very large parachute design significance.Parachute canopy breathable fabric has great influence on the parachute descent, The purpose of this study is to consider the case...

As a typical green lighting source, but most of high-power LED input power is converted into heat, heat dissipation has important influence on its performance. For the LED lamp radiator, the heat conduction mode is obtained. By the finite element simulation analysis and thermal analysis of natural convection...