Applied Mechanics and Materials Vols. 631-632

Abstract: This article describes the Visual C++ call MATLAB engine detailed steps to achieve the VC-based interface to call MATLAB field geological position of multi-scale edge detection algorithm. The results show that, the development cycle of program and the workload is reduced, but also has a good Visual C++design of MATLAB user interface and convenient calculation and drawing ability. The program for the development of geophysical analysis software provides an effective way of high reliability, low development cycle.

Abstract: Currently, there has been growing interest in unmanned aerial vehicle (UAV) during the landing. With the widespread use of the UAVs, a more precise estimation on pose and position in the process of landing is required to support the higher-level applications. In this paper, the estimation of pose and position based on the line segment detection (LSD) is proposed. By applying a vision camera, a landmark is detected using the effective LSD algorithm. Then a line-based vision model is built to calculate the pose and position of the UAV. Experimental results show that the state solutions of the proposed method are effective with different shape of landmarks, and the accuracy is minute-level in pose angle error and centimeter-level in position error.

Abstract: It is based on the Eighth National College "Freescale" intelligent vehicle competition, this contest requirements to make a model car which can identify the road on the model vehicle platforms independently. If the model car completes contest in accordance with the line for the shortest time that it is winning. Therefore, researching various types of track and the path tracking approach of each group model car is particularly important. First it describes the various types of track, and then describes track recognition principle of each group by using corresponding sensors in detail, finally it analysis how to use sensor to deal with all kinds of circuit method, so that the model car can be quickly and securely through a variety of track, and in the shortest time to reach the end.

Abstract: To reduce the complexity structure of a flapping rotor, a piezoelectric transducer drive mechanism is designed to achieve active flapping and passive rotary motion. Then, its aerodynamic force model is built by using Theodorsen's theory in order to analyze the aerodynamic characteristics of this system. Model simulation and experimental results show that flapping amplitude, flapping frequency and initial angle of attack make a significant role for aerodynamic characteristics. The effectiveness of aerodynamic force mode also can be seen from the comparison of the results.

Abstract: Currently, in terms of smart meter information acquisition system, there exists problems such as high cost of development, difficulty in system maintenance and poor integration ability. To solve the integration problems, a service-oriented smart meter information acquisition system is proposed in this paper with the usage of service oriented architecture. In the concrete implementation, problems of processing brought by multiple protocols are worked out by adopting the object-oriented method. Meanwhile, in order to deal with the blocking of client process during the smart meter reading procedure, WCF technology, as a solution, is put forward.

Abstract: The 3G era, the smartphone market share is higher and higher. The mobile phone based on the Android platform accounts for more than half of the market share. Once the user lost the phone, it is not only hard to find, but also to face important data leak and privacy security issues. So, the demand to provide mobile phone found function appears increasingly urgent. If the mobile phone is lost, this platform can get information on replaced mobile phone SIM card to boot for the first time, and upload the new mobile phone number and current phone location information to the server. It provides users with inquiry function on the web in order to achieve the purpose of tracking the lost mobile phone. The application prospect of this study is widespread, not only limited to track the missing phone, also involves other position service in the life need. The relevant mobile localization algorithm is detailed in this paper.

Abstract: In this paper, the multi-body dynamics software EXCITE was used to simulate the connecting rod big end bearing of two-stroke marine diesel engine. The result showed the stress analysis of connecting rod big end bearing. The purpose is to provide a theoretical basis for the actual conditions of connecting rod big end bearing, and to improve the design of the crankshaft structure.

Abstract: The mechanical parameters of rock and soil has an important position in the project, the accuracy of the landslide’s mechanical parameters is very important in landslide stability, displacement forecast and prevention engineering design, compared with the laboratory tests, the in-situ tests have many outstanding advantages, the results are more according with the actual. This article through the in-situ shear test of the celadon and purplish red sandy mudstone which in zhongnan concave, detailed describes the test principle, sample preparation and test scheme, to provide a kind of strength parameters acquisition method, at the same time provide definite reference to the congeniality rock and soil.

Abstract: Hyperspectral remote sensing technology can be used to make a correct spectral diagnosis on substances. So it is widely used in the field of target detection and recognition. However, it is very difficult to gather accurate prior information for target detect since the spectral uncertainty of objects is pervasive in existence. An anomaly detector can enable one to detect targets whose signatures are spectrally distinct from their surroundings with no prior knowledge. It becomes a focus in the field of target detection. Therefore, we study four anomaly detection algorithms and conclude with empirical results that use hyperspectral imaging data to illustrate the operation and performance of various detectors.

Abstract: In this article, a facile method to measure pH and calcium content of different kinds of eggs by Ion-selective electrodes was presented successfully. First of all, we used pH electrode to measure the pH value of egg yolk and protein respectively. For the native egg, yolk’s pH was 6.20 and protein’s pH was around 9.45. But the fresh egg yolk was different from the native hen egg, yolk’s pH was 6.20 and protein’s pH was approximately 9.20. Then, we chose calcium ion selective electrode to measure calcium content in the eggs. When it came to calcium content, there was an obvious difference between the native hen egg and the fresh egg. Calcium contents in egg yolk of the former ones are higher than that of the latter. Ion-selective electrode with these advantages makes it possible to measure composition content rapidly of eggs. This paper may be a guide to expand its application scope, further research must be continued in order to achieve big success.