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In order to realize the 126kV vacuum circuit breaker which is used by motor actuator to synchronous closing, a device is developed to realize the circuit breaker synchronous closing and use DSP(Digital Signal Processing) as the control core. Established a simulation model, through the simulation and calculation of the vacuum circuit breaker when closing no-load transformer and capacitor. Circuit breaker...
Monitoring marine object is important for understanding the marine ecosystem and evaluating impacts on different environmental changes. One prerequisite of monitoring is to identify targets of interest. Traditionally, the target objects are recognized by trained scientists through towed nets and human observation, which cause much cost and risk to operators and creatures. In comparison, a noninvasive...
Immersion is of paramount importance for virtual training tasks, especially in the area of medical training simulations. Although hap tic interaction has been the major boost for immersion in visuo-hap tic rendering, the way how visual rendering represent detailed information can greatly affect hap tic pipeline and therefore is also crucial for an engaging and effective training simulation. In this...
Lung segmentation in thoracic computed tomography (CT) scans is an important preprocessing step for computer-aided diagnosis (CAD) of lung diseases. This paper focuses on the segmentation of the lung field in thoracic CT images. Traditional lung segmentation is based on Gray level thresholding techniques, which often requires setting a threshold and is sensitive to image contrasts. In this paper,...
We demonstrate a side-channel photonic crystal fiber for surface enhanced Raman scattering applications. A low detection concentration of 5 pM 4-aminothiophenol solution and an accumulative effect of Raman signal along the fiber length are achieved.
On the basis of the absolute degree, relative degree, synthetic degree, similitude degree and close degree of grey incidence models, we analyzed the reason for the contradiction between the quantitative and the qualitative results in some cases. Aimed at this reason, the error sources of grey incidence models are deeply analyzed and a novel method that measures the closeness of a relationship between...
We experimentally demonstrate a magnetic field sensor based on long-period fiber grating (LPG) and magnetic fluid. Our proposed sensor possesses a high sensitivity of ∼0.154 dB/Gauss and a low measurement threshold of ∼7.4 Gauss.
Conventional representation-based classification algorithms exploit the principle of classical representation which firstly calculates a representation formula of test samples by linearly combining training samples and then classify test samples by the distinction between the expression results of each class and test samples. However, this distinction cannot always exactly display the deviation between...
There are more and more aged people who elder are living alone because of losing their spouses. This paper presents an equipment to remotely detect aged living status to distinguish whether the living status is normal. The device connects the rooms elder to be monitored to the community care agency through the network. The signals from sensors are analyzed by artificial intelligence reasoning to obtain...
This paper presents a tunable micro Fresnel lens made by a polydimethylsiloxane/carbon nanotubes (PDMS/CNTs) configuration that can change its focal length by simply stretching the substrate. We believe this is the first time that this configuration has been realized and demonstrated. The Fresnel lens is formed by embedding vertically aligned CNTs bundles in a 2mm thick PDMS layer. It utilizes the...
Software Defined Networking (SDN) introduces a new communication network management paradigm and has gained much attention from academia and industry. However, the centralized nature of SDN is a potential vulnerability to the system since attackers may launch denial of services (DoS) attacks against the controller. Existing solutions limit requests rate to the controller by dropping overflowed requests,...
This paper aims to present cube neutral bit tester on EPCBC. Cube neutral bit tester is a generic class of methods for building distinguishers, which find function approximating F(K, V) that depend on less than all key bits. We demonstrate how to use an efficient FPGA implementation cube neutral bit tester on the block cipher EPCBC. Different from the previous kinds of attack, the primary purpose...
CHAI3D is a widely accepted haptic SDK in the society because it is open-source and provides support to devices from different vendors. In many cases, CHAI3D and its related demos are used for benchmarking various haptic collision and rendering algorithms. However, CHAI3D is designed for off-the-shelf single-point haptic devices only, and it does not provide native support to customised multi-point...
Haptic rendering of complex models is usually prohibitive due to its much higher update rate requirement compared to visual rendering. Previous works have tried to solve this issue by introducing local simulation or multi-rate simulation for the two pipelines. Although these works have improved the capacity of haptic rendering pipeline, they did not take into consideration the situation of heterogeneous...
Virtualization has been an enabling technology for IaaS (Infrastructure as a Service) Clouds. Physical machine (PM) provisioning is a key problem for IaaS cloud providers on their resource utilization and quality of service to users. Proper provisioning is able to ensure the service quality while conserving unnecessary power consumption from over-provisioned PMs. However, the effectiveness of PM provisioning...
Aiming at the particularity of the BDAR, the method which employs the set pair analysis based on entropy and weight to rational efficiency evaluation of the BDAR had been discussed by taking certain five amphibian equipments as example. Firstly, the evaluating index system was established by analyzing the characteristic of the BDAR and the factors which affect the efficiency evaluation of the BDAR...
Skill shortage is a realistic social problem that Australia is currently facing, especially in the fields of Science, Technology, Engineering and Mathematics (STEM). Various approaches have been proposed to soften this issue. By now the most successful approach is to attract pre-university youth and university freshmen into those fields before they make a decision on future subjects by introducing...
We propose Video Driven Traffic Modelling (VDTM) for accurate simulation of real-world traffic behaviours with detailed information and low-cost model development and maintenance. Computer vision techniques are employed to estimate traffic parameters. These parameters are used to build and update a traffic system model. The model is simulated using the Paramics traffic simulation platform. Based on...
This paper presents a novel method that can detect arbitrary shaped scratches on bottle caps based on a template edge image comparison method. In this method, edge-preserving smoothing based on a guided filter technique is first applied and edge information is extracted. Then modified Hough transform is combined with a hierarchical orientation searching method to locate the position and orientation...
With urbanization and vehicle availability, there exist many traffic problems including congestion, environmental impact and safety. In order to address these problems, we propose a video driven traffic modelling system in this paper. The system can simulate real-world traffic activities in a computer, based on traffic data recorded in videos. Video processing is employed to estimate metrics such...
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