Search

Aiming at the shortcomings of HS Algorithm and LK Algorithm which the algotithm are too completed and the computing quliquanties are large; this paper brings forward Fast-speed Dirrerential Light-flow method, and verifies the feasibility of this mathod by Matlab Software.

With elastic modulus perturbation parameter of blade as mistuned parameter, a parameter identification method of mistuned blades is presented based on static frequency test , bisection method and finite element method. Take mistuned blades of the compressor as an example,the mistuned parameter of blades are identified. The identification results show that this method is high precision and fast speed.

Fetal electrocardiogram (FECG) is of great importance due to the potentially precise information that FECG carries could assist clinicians in making more appropriate and timely decisions during pregnancy and labor. In this paper, a method based on combined Stationary Wavelet Transform and Modulus-Maxima (SWT-MM) method is proposed for extracting the complete morphology of the FECG from maternal abdominal ECG (AECG). It particularly provides a different way of constructing the maternal ECG (MECG) template. The Efficacy of the method was validated using real data in Non-Invasive Fetal Electrocardiogram Database. The morphology of the extracted FECG was clearly seen that the fetal R-peak detection by simple differential-threshold method acquired the average accuracy of 96.8%. The method provides additional important benefits of fast speed and automated control for applying into the fetal monitors. Therefore, the method is potentially a strong tool for FECG extraction, especially in real-time use.

According to the characteristics of Fast Speed Mirror, the paper discusses that, in a FSM composite axis control system, the mechanism of the servo control, the main system performance, the speed loop of subsystem and effects of automatic zero locking system. Combined with traditional methods, a new structure of axial subsystem is proposed, to improve the rapid high-precision tracking technique. From theory to experimental model, the paper made a detailed analysis.

This paper introduces a kind of resistance sorting instrument with fast speed, high precision and wide range based on microcontroller STC12C5A60S2, including its work principle and composition of software and hardware. Resistance test method of the sorter’s low and high resistance segment is elaborated in the paper. The resistance sorter is an intelligent instrument, which is designed for grouping and filtering of finished resistance on the production line.

Aiming at the phenomenon that the production line of the strip steel’s detection is fast speed and detection quantity of data is large, which are difficult for worker to detect on line, we put forward a detecting system on defect area of the strip steel’s surface. Using CCD camera regularly to collect the images of the strip steel’s surface and to reflect it back to the detecting device on defect of the strip steel’s surface, and adopting specific arithmetic to analyze and handle images, what can accurately sound a warning while it detects the defected image. It is convenient for worker to take corresponding measures right away. This system has simple structure, low cost, and high defect detection rate, which has the great promotional value.

Frequent start and stop in complex unstable environment causes micromouse based on single MCU cannot work properly, especially in fast speed; A new micromouse based on LM629 is explained and demonstrated how to design, especially for its motion control firmware. Experiment results show that the micromouse prototype based on LM629 can be very good to meet the fast micromouse requirements.

Information Management of University Documents is an important part of Digital Campus. The goals of university Document are the digitalization of resources of university documents, the cyberization of information service and the standardization of managing electronic documents. The document information with high quality and fast speed will support the development of university as well as serve the management of teaching activities and scientific research.

This paper addresses the Steelmaking Continuous Casting production scheduling problem (SCC) with power consumption as the main objective. An encoding and decoding scheme is proposed and an effective Estimation of Distribution Algorithm (EDA) is presented to solve it. Simulation experiments indicate that EDA can solve the SCC problem efficiently and has fast speed of convergency.

Based on the monitoring data in the coastal area of Laizhou bay, the paper presents the correlation between groundwater conductivity and chemical characteristics.The results showed that,compared with titration method,application of Diagometer has the advantages of high accuracy,fast speed and simple operation.When the seawater intrusion has not yet occurred or relatively weak,the effect of the application of diagometer is not very obvious.Only when seawater intrusion occurs serious,application of Diagometer can reflect the changes of mineralization degree and chloride ion concentration of groundwater accurately.

For virtue of small volume and fast speed of construction, arch dam is the most suitable dam type in cold region, where construction period is relatively short each year. Low average value and large amplitude of atmospheric temperature make temperature stress distribution of arch affect directly by thickness of permanent insulation material as while as the time of thermal insulation. Extreme climate lead to stricter external insulation requirement for cold region arch than these in common district, however, thermal insulation will increase the burden of artificial cooling and extend the construction period. Therefore, it is complicated and critical for arch dam crack prevention to study on permanent thermal insulation. In view of this, finite element method was applied for simulation of construction processes of a practical project in cold region. Influence of permanent thermal insulation layer thickness and selection of insulation time is analyzed, in order to provide basis for permanent thermal insulation optimization.

Quantitative metallographic analysis method is used to analysis ductile iron, carbon steel and copper those three typical metallic materials of power grid, instead of the situation for manual visual as qualitative and semi-quantitative. The results of experiment demonstrate that the quantitative metallographic analysis meets the requirements, and the merits are fast speed of processing, accurate and reliable data and reproducibility of experimental results.

Traditional lubrication by oil sometimes does not work because of the high temperature, fast speed and excessive load of the aeroengine bearings. The Graphite-like Carbon coating is used to improve the insufficient lubrication in this paper. And the micro hardness, the friction coefficient and the wear rate tests are offered: with GLC, the hardness is increased twice at least, its friction coefficient is 25% and the wear rate is 1/100 when contrasted with that of the typical bearings material. The tests and calculation results show:the wear cycles of the GLC coated W9Cr4V is more than 400 times of that of the uncoated W9Cr4V and even when the GLC coating is worn out, the friction coefficient of W9Cr4V is only 0.15 which can effectively lubricate for the bearing for a short period of time when the liquid lubrication does not work. So it is proved to be effective in improving the wear resistance and reliability of bearings.

Biclustering has been extensively studied in many fields such as data mining, e-commerce, computational biology, information security, etc. Problems of finding bicliques in bipartite, which are variants of biclustering, have received much attention in recent years due to its importance for biclustering. The k-biclique vertex partition problem proposed by Bein et al. is one of finding bicliques problems in bipartite. Its aim is to find k bicliques (kk) such that each vertex of the bipartite occurs in exactly one member of these bicliques. First, we give a sufficient condition of the k-biclique vertex partition problem. Moreover, we present an exact algorithm for finding k-biclique vertex partitions of a bipartite. Finally, we propose a method to generate simulated datasets used to test the algorithm. Experimental results on simulated datasets show that the algorithm can find k-biclique vertex partitions of a bipartite with relatively fast speed.

More and more optical elements are needed in modern industry, which is reflected by both the bigger amount of requirement, and more complicated designed surface such as asphere and even free form surface. As a result, optical polishing using small tools on CNC machines is applied widely in the whole world, which has a lot of advantages such as fast speed, high accuracy, high flexibility and so on. But the small tool polishing can also cause in some problems. For example, the middle spatial frequency errors (MSFE) may be increased during the polishing. The reasons may consist of the following aspects: 1) the positional error of the workpiece; 2) the mistake of error data input; 3) the unexpected stop of the polishing process; 4) the stabilization of the slurry density during the process; 5) the temperature change of the contact area between the tool and the workpiece and so on. As is known, pitch is usually used in traditional optical manufacture, and it can reduce the middle and high spatial frequency errors in a large extent because of the different removal rate between the high points and low points on the optical surface. Therefore, the application of the combination of pitch and small tool is described in this paper in order to solve the MSFE problem, and we have got good polishing results of reducing the error from 2.155nm to 0.267nm by using the new pitch tool on the CNC machine after two runs.

The complexity of sea environment and the uncertainty of AUV model lead to difficulties of heading control. It is difficult to satisfy its requirement for high accuracy and fast speed through the use of a single control method, based on the peculiarity of AUV and the existing problem of control, We propose a fuzzy-PID control method based on a grey model, which combines fuzzy control with PID control, Our simulations confirm that our method provides higher robustness and adaptive property than regular PID, it is suitable for the use of AUV in complexity sea environment.

In recent years,cold storage which is the central pivot of low temperature circulation of food developes faster overseas.It shows single-story and assembly and fast speed of low –temperature storage.In china it is being developed from multi-storey to single-storey of high goods shelves.Earthquake action of cold storage with reinforced concrete frame building is quantitatively analyzed by using three methods for bottom shearing and mode-superposition response spectrum and linear elastic time history analysis.Applicable condition of method for bottom shearing is verified.The paper aims to do the comparison and analysis of seismic precautionary of six or seven degrees,so as to provide some valuable references to the same type of buildings.

With the development of the city, there has more and more high rise buildings, people has serious attention on the security problems of the high rise buildings. Code for deformation measurement of building and structure asks that, deformation monitoring for high-rise building during service stage is necessary. During servicing stage of the high-rise building, owing to the change of site conditions, it is difficult to use former monitoring way. GPS plays a incomparable role in the deformation monitoring during the servicing stage for its advantages of high precision, fast speed and easy operation. This paper introduces the monitoring way and data processing of using GPS for high-rise building during servicing stage, using a example to prove that the application of GPS in deformation monitoring for high-rise building during servicing stage is feasible.

Through using acetic acid resin, asphalt and urea resin organic pretreatment methods to pretreat the surface of rural construction waste, and testing of crush index and water absorption rate of recycled coarse aggregate after pretreatment, the research for the influence of organic pretreatment technology on physical and mechanical performance of recycled coarse aggregate. The results prove that organic infiltrating pretreatment technology can effectively enhance the density of the coarse aggregate and decrease the crush of recycled coarse aggregate index, in a certain extent. The crush index of recycled coarse aggregates after organic pretreatment decreases at almost 17.63%, what’s more, organic pretreatment technology can decrease the water absorption rate of coarse aggregate by a large margin. The water absorption rate of coarse aggregate can be reduced to a minimum of 2.03% which closes to the level of natural aggregates. Because of urea resin solidified into film at fast speed, high integrity and high wear resistance, and relatively cheap, urea resin’s pretreatment effects on recycled coarse aggregates is better than acetic acid resin and asphalt.

Due to the range of the measuring system is limited in the measurement of large aspheric optical elements, test is hard to be once fulfilled, so coordinate measurement based on multi-section stitching is proposed, and the least square mathematical model of large aperture optical elements multi-section stitching is built. Moreover, the profiler Talysurf PGI 1240 made by Taylor Hobson company is used for study. The result shows that, the method is suitable for multi-section data stitching for large aspheric optical elements, and possesses many advantages, such as fast speed, high accuracy and strong operability, etc.

Gaussian mixture model background difference method is an effective method to achieve the moving target detection. According to its deficiencies of accuracy, speed and other aspects, this paper presents an improved Gaussian mixture model background difference method. Firstly, use three-frame difference method to detect the alterant area rapidly by the advantages of accuracy and fast speed. Then, use the area method to judge the results, and determine whether it is need for target extraction of the current frame by Gaussian mixture model background method, which can reduce the time of object detecting and background modeling. Meanwhile, the update strategies of the Gaussian mixture model background is improved, which can further enhance the detective accuracy and speed for the large and slow moving targets.

In order to point out the relationship between the lower muscles force and 500m result f6r short track speed skating, the knee and ankle muscle strength of elite male skating athletes is measured and analyzed by IsoMed 2000 isokinetic testing system. Based on the features of athletes’ muscle strength, the study tends to find out the differences and drawbacks in short track speed skating athletes and to make further discussion on the laws and determinations of the event. The main conclusions are as follows: 500m result of elite male short track skating athletes are determined by that the muscle performances of fast speed, which including force opportunity, power ability and max-strength ability; the knee muscles are more important than that of the ankle’s; the strength with technique is the core factor for result.

Large forest fires are very hazardous and often cause greater losses. However, due to the vast coverage of forests and the environmental complexity, monitoring which relies on sensor detection of direct contact almost cannot achieve its monitoring function. In this paper, the author proposes that long-range images will first be acquired and so do the images of a larger dynamic range of the observed region, then an embedded video monitoring system will be formed realizing a dynamic monitoring. With the techniques of dynamic image analysis and processing, dynamic image alarms and control signals can be obtained and such videos will be transmitted over the Internet in real-time. Experiments shows this system respond to fires with a fast speed of less than 20ms and the control of fire is highly accurate with a dynamic image area that is less than 1% of the background area.

Initial stress anchor wire anchoring technology has the merits of fast speed, small perturbation and economic when healing unstable rock side slope. Choosing the spacing, position, angle of reinforcement anchor wire plays a vital role in reinforcement stability and economy. The landslide of an open pit was elected as project background in this paper. Operation model was set up by Lagrange arithmetic which analyzed the reinforcement mechanic and broken pattern of anchor wire. And it defined that the optima spacing is 8m. The anchor wire reinforcement angle and institution position research were researched by using limit balance theory. The optimum design angle obtained is -20°~20°, and the optimum institution position is in the range of 1/5~1/2 of the lower reinforcement side slope height.

In this paper, we propose a fast approach to simulate the dynamic behavior of skeletal muscles based on bio-mechanical and anatomical properties. In contrast to physically accurate deformation, this simulation achieves faster and better simulation of skeletal muscles, with the cost of unnoticeable visual accuracy. Internal constrains are generated to conserve linear and angular momentum which is essential for cloth self-collision. Deformation constraints are defined by using the muscle force-length relationship serve as Control Axial Curve, which constrainedly generates the active and passive force of the muscles to drive skeletal motion during the deformation process. This approach generates realistic visual effect, and manages the deformation of muscles on the basis of the bio-mechanical properties with fast speed. We have demonstrated the simulation by creating a musculoskeletal model of the upper limb.

Vibrating style drier with conduction and heat transfer is a novel drying equipment combining drying technology with heat transfer technology. It has the properties of high efficiency, energy saving, environmental protection and fast speed, which overcomes the weakness of large energy consumption of drying equipment and uneven drying of sulfurization bed. It can greatly increase the quality and yield of products, improve the working environment, and increase remarkably economic benefit and energy saving effect. In this paper, the structure characteristics, the working principle, and also the application of vibrating style drier with conduction and heat transfer were introduced. Its dynamic characteristics were analyzed, which was of great significance to the application and popularization of this kind of drier.