Advanced Materials Research Vols. 1030-1032

Abstract: Pavement structural depth is an important indicator of Pavement macro-structure. So how to use better method, with low cost to obtain the high accuracy of pavement structural depth indicators become the difficulty and key factor in road detection area.In this paper we propose a new detection pavement structure depth method.mainly studies the accurate detection principle of pavement structure depth, develops pavement structure depth detection system which can be used in engineering practice with high-speed, high-accuracy. making the detection of pavement structure depth more accurate and rapid.

Abstract: This paper establishes a lane function allocation model based on the problems that traffic flow is not smooth and traffic is heavy. And choose typical intersection in Hohhot as the research object, using the lane function allocation model to optimize. Optimization results can be very good to improve intersection, which proves the rationality of the lane function allocation model.

Abstract: During the course of flight, we need to estimate regional sector dynamic capacity in order to assure the safety and efficiency of operation. Subjected to the controller workload and the decrease of CNS performance under the hazardous weather, and the controller workload is related to the degree of hazardous weather at the same time, the capacity on a route changing over time, the capacity of the associated sectors will also change. This paper, based on existing research, assumes a Poisson distribution flight arrival flow trends and hazardous weather in the coming period is known. It establishes a nonlinear programming model considering hazardous weather, controller workload and longitudinal interval between aircrafts innovatively, and then uses Matlab to solve the model. The results show that the model is feasible.

Abstract: Site selection is one of the most important issues of the construction of a rational and efficient public bike system. In connection with the limitations of traditional methods of site selection, this thesis puts forward a site selection method based on GIS. The application of GIS technology provides site selection with a new idea and method, makes up for the shortcomings of traditional research methods and lets decision-making about site selection possess scientific and intuitive image, data and information.

Abstract: With an increasing number of the offshore oil and gas fixed platforms, the traffic environment is becoming more complicated, which will have a negative impact on the safety of both platforms and ships around. Considering the operation method and safety of the offshore oil and gas fixed platform, and the ship’s motion when being not under command, the safe distance between the platform and the ships’ customary routes is determined according to the big and frequent ship type sailing in the routes. The safe distance calculation result provides a basis for both the site selection and the distance keeping for ships passing by the platform and the water around.

Abstract: Because of the defects in energy utilization and environment protection of the traditional fuel vehicle, the electric cars have increasing market advantage. This paper analyzed the main structural characteristics of the electric cars by comparing the traditional fuel vehicles from the vehicle structure principle, main components and so on. We known the electric car is different from traditional fuel vehicle in energy consumption economy from energy consumption analysis of the two aspects of efficiency and fuel consumption per hundred kilometers. It is concluded that electric vehicles are significantly higher than the traditional fuel efficiency cars and fuel consumption per hundred kilometers is lower than the traditional fuel cars by comparative analysis. To study the ways to improve the efficiency of energy of electric vehicles, we analyzed the key problems to further improve the development space of energy efficiency, pointed out the key problems which should be researched in the future.

Abstract: The biomechanics of the glenohumeral joint depend on the interaction of both static and dynamic stabilizing structures. The combined effect of these stabilizers is to support the multiple degrees of motion within the glenohumeral joint. Total shoulder arthroplasty requires release of contracted tissues, repair of rotator cuff defects, reconstruction of normal skeletal anatomy with proper sizing, and positioning of components. Arthroplasty of the shoulder is unlike arthroplasty of the hinge joints when the collateral ligaments afford a high degree of stability and is even distinct from the hip when bony conformity is large and range of motion is less. The goal of this paper is biomechanical analyses of normal, injured and implanted shoulder joint.

Abstract: Based on the theory of bone conduction, a novel circular piezoelectric bone conduction hearing device with a new structure of leaf spring support and excellent low-frequency response is proposed in this paper. The simulation analysis of the circular piezoelectric vibrators with different support ways was carried by ANSYS. And the prototype of piezoelectric bone conduction headphone supported by the optimal way was produced. The experimental test was conducted and the results showed that the maximum response amplitude of headphone could reach up to 26.14μm in the low frequency region ranging from 20Hz to 1000Hz. The zero-distance loudness of the headphone is between 60dB and 90dB, and the 1m close distance loudness is between 30dB and 40dB.The experimental results confirmed that the headphone can meet the hearing needs without healthy risk and ambient noise.

Abstract: A silicon resonant micro-cantilever biosensor was introduced to detect biomacromolecular based on the relationship between the cantilever resonant frequency and the cantilever equivalent mass. A closed-loop self-excitation system was designed to acquire the resonant frequency of micro-cantilever. Two groups of resonant micro-cantilever sensors with different resonant frequencies of 18.192 kHz and 17.688 kHz respectively were tested. The result showed that the detection system can automatically search the resonant frequency of micro-cantilever and locked quickly. To demonstrate the feasibility of this approach, human immunoglobulin G(IgG) as model target biomacromolecular was employed, different concentration of IgG was detected by the resonant micro-cantilever sensors, the mass effect of micro-cantilever was adept and the micro-cantilever was drive by closed-loop circuit. The linearity of micro-cantilever biosensor was very well and the experimental result of sensitivity of micro-cantilever biosensor was about 6.6×10⁶. All the results showed that sensitivity of the presented immunoassay significantly increased by one-order of magnitude and offered great application promises in providing a sensitive, specific, and potent method for real-time detection of biological detection.

Abstract: The prototype of a production can be manufactured directly from its 3D CAD model data by using rapid prototyping technology, and can be renewed conveniently after modifying the CAD model. In this paper, the basic principle, typical prototyping systems are introduced, and rapid prototyping methods such as selected laser sintering of powder material, fused deposition modeling of threadlike material and laminated object manufacturing are presented. An application of rapid prototyping technology on design and development of first aid kit is described in detail. It is indicated that rapid prototyping technology is an effective means to lower the cost and shorten the period of development of medical equipment.