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Warehouse management systems (WMS) play a critical role in supply chains and large production processes. WMS pose two crucial challenges for variability modeling and management: Firstly, the physical configuration of each warehouse differs significantly. Numerous different electronic devices like controllers, sensors, and motors are used to automate warehouses. Secondly, the processes running in a...
Most of the students are forced to take different courses based on their parent's interest, not of their interest. Some students are selecting their courses without knowing their inner ability. In this paper, how the student should select the different courses based on their learning styles in different levels is derived. This is achieved by eliminating the outliers in collected data from students...
Defect detection in metallic plates represents an important issue in metal industry, because its potential use in quality control process. Eddy current testing is one of the most extensively used nondestructive techniques for inspecting electrically conductive materials. The purpose of this paper is to present an eddy current testing system for surface defect detection in conducting materials using...
An innovative approach of sensitive and selective detection of trace amounts of chemical threat agents is presented in this work. The technology deals with semiconductor metal oxide gas sensors as a means of express gas detection, coupled with pre-sampling system, which is to improve sensitivity and selectivity of analysis. Examples for H2S, DMMP (phosphor-organic weapons simulant) and UDMH (highly...
The identity of a material may be obtained by measuring its emis-sivity spectrum. Unfortunately, hyperspectral remote sensing instruments measure spectral radiance, which is a nonlinear function of the material's emissivity and temperature, the atmospheric downwelling radiance, and other factors. Therefore, accurate interpretation of hy-perspectral data requires estimation and separation of these...
For a kind of commercial MCCB, arc current, arc voltage, internal pressure of arc extinguish chamber, and arc moving images under different breaking conditions have been measured respectively, based on ATiS BE12 data acquisition system, pressure sensors and high-speed camera. Based on Kistler sensor and electromagnetic screen cover, an arc extinguish chamber internal pressure measuring method has...
At an instantaneous luminosity of 5 × 1034 cm−2 s−1, the high-luminosity phase of the Large Hadron Collider (HL-LHC) is expected to deliver a total of 3 000 fb−1 of collisions, hereby increasing the discovery potential of the LHC experiments significantly. However, the radiation dose of the tracking systems will be severe, requiring new radiation hard sensors for the CMS tracker. The CMS tracker collaboration...
The well tightness of the coal mining water-cooling explosion-proof motor results in difficult heat dissipation, high hydraulic pressure is needed to increase the cooling effect. However, high hydraulic pressure may lead motor shell to deform, which makes it difficult to change the motor and maintain the motor unit. The method of adding keyhole caulk weld spots on the outer cooling water jacket was...
Calderon's method was generalized to deal with the image reconstruction of electrical resistance tomography (ERT) from partial boundary measurements. The electrodes of the ERT sensor are located on part of its boundary, which indicates that the Dirichlet-to-Neumann map is obtained on an open subset of the whole boundary. However, the Dirichlet-to-Neumann map is typically approximated from the data...
Terahertz (THz) has been well known for its unique ability to propagate through non-polar packaging material. At the same time, THz wavelengths are small enough to provide meaningful imaging resolution, leading to their large potential in non-destructive evaluation. Correlation processing is a technique that has been shown to detect phase resonances in illicit chemicals, and in this paper, is extended...
This study reports a simple but effective glycothermal method for synthesis of urchin-like vanadium pentoxide (V2O5) nanostructures for gas sensing. By this method, the V2O5 nanostructure was prepared by two steps, involving preparation of precursor, followed by calcinations. The as-prepared precursor particles were rods (200 nm×1 µm) and could assemble into microspheres or urchin-like structures...
Doping metal oxides with metallic impurities has been the subject of previous studies for enhanced sensing performance. In this paper, we present a review on syntheses of transition metal doped metal oxide nanostructures using arc discharge method. Tungsten oxide was doped with Palladium, Scandium and Vanadium, respectively. Nickel was chosen to dope Zinc oxide by arc discharge method. It is demonstrated...
Micropositioning systems with the properties of long travel range, compact physical size and high accuracy are required in many precision engineering applications. This paper presents the design, fabrication and testing of a novel two-axis compliant parallel-kinematics precision positioning stage with a centimeter stroke and compact size. Different from existing work, the presented stage owns a much...
To further extend the scaling trend of traditional CMOS technology, many hybrid architectures integrating emerging device technologies have been proposed recently. Among them, memristor based cross-point memory (MBCPM) demonstrates great potential in data storage and computation. However, accessing a cross-point memory inevitably induces currents flowing through those unselected cells, called as sneak...
Kinetic architecture has been in the center of architectural discourse utilizing technological advances [1] to establish itself in the reality of the built environment. Despite the large number of researchers and realized projects, various issues have prevented these solutions from being incorporated vastly into conventional building design. Over the past years, responsive architecture, computational...
This paper is aimed to present an idea of detecting explosives using mobile and satellite communication systems and thus paving a way for in depth research on formulating this idea into practice. The research in both electronics world and chemical world can lead to the development of sensors which can be embedded on the mobile devices. The present technology of satellite communication can be integrated...
This paper generally focus on how and where linked data could be integrated and used in the development of semantic feedback for teaching and learning in physical education. Feedback may currently be generated based upon a competence model. To achieve semantic interoperability and increase the level of reusability of feedback, competence should be represented as an explicitly defined, structured,...
A spoof or fake is a counterfeit biometric that is used in an attempt to circumvent a biometric sensor Liveness detection distinguishes between live and fake biometric traits. Liveness detection is based on the principle that additional information can be garnered above and beyond the data procured by a standard verification system, and this additional data can be used to verify if a biometric measure...
This paper presents the design, fabrication, and testing of a compliant rotary nanopositioning stage for precision engineering applications. The major advantage of the rotary stage lies in that it possesses a large rotational range and a compact size simultaneously. A new idea of compound radial flexure is proposed to enable this merit. A novel rotary stage is designed to provide a rotary angle over...
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