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This paper presents a computationally efficient method to forecast floods stochastically. The main purpose of the method is to encapsulate prior knowledge as off-line calculations leading to earliest possible warnings. The computational efficiency is improved through exploiting the stereotypical features of hydrology and its dependence on topography by combining the parallel water-flow processes into...
Cytogenetic biodosimetry is the definitive test for assessing exposure to ionizing radiation. It involves manual assessment of the frequency of dicentric chromosomes (DCs) on a microscope slide, which potentially contains hundreds of metaphase cells. We developed an algorithm that can automatically and accurately locate centromeres in DAPI-stained metaphase chromosomes and that will detect DCs. In...
This paper presents an embedded service oriented monitoring approach to enhance awareness of energy consumption at the shop floor and Manufacturing Execution System levels in factories. Appropriate aggregation of information allows fulfilling the needs of personnel having different levels of responsibility and knowledge. The method is applied on a real industrial testbed, originally utilized for mobile...
Using physically based computational models coupled with remote sensing technologies, photogrammetry techniques, and GIS applications are important tools for flood hazard mapping and flood disaster prevention. Also, information processing of massive input data with refined accuracy allows us to develop and to improve urban-flood-modeling at a detailed level. The topographical information from digital...
A satellite elephant collar is a device mounted on an elephant's neck to track its position and movements. This information is essential for conservation and management of this highly endangered species. Currently available units are proprietary designs by few manufacturers and no literature can be found about their internal operation. This lack of published information hampers the evolution and development...
It is argued that ontologically clear entity relationship models can model the real world domains more accurately than ontologically unclear models. However, transformation of such models into the relational model at the logical level has not yet been studied sufficiently with a view to formulate new transformation rules. This paper presents a set of new transformation rules to convert ontologically...
The new type of evaporative inner cooling system used in the stator of wind turbines has ascendancy over other traditional cooling methods. It offers a more safe, more reliable and effective in result of cooling. So it is worthy to have a deep research on analysis of the inner cooling structure of the stator coils. Based on a 5MW wind turbine stator, a simulation model in three dimensions for temperature...
With the rapid development of Electric Vehicles (EVs), large-scale charging requirement will heavily impact the existing power grid. So there is an urgent need for coordinating control to avoid it in smart grids. Demand side management reducing charging rate at peak load and rescheduling charging process at appropriate time such as low grid load can be used to solve this issue. This paper proposed...
This paper introduces techniques for designing and implementing remotely controllable outdoor robots with the ability to localize itself while traversing in hazardous environments. The robot platform designed is a semi-autonomous tiller modified as required by the application. Localization based on wireless sensor network which has been a research interest of is addressed here with the use of Zigbee...
Popularization of charging station promotes wide applications of electric vehicle (EV). With the increase in the number of charging station, the problem of grid pollution becomes worse and worse. To improve the utilization rate of EV, the charging hours must be decreased. At present, most EVs start charging instantaneously under almost rated power of the charger. Large-scale EVs charging without adjustment...
This paper presents a fast method for predicting inverter performance and evaluating power devices in electric vehicle drives during longtime driving cycles. The reliability of insulated gate bipolar transistors (IGBTs) is directly influenced by temperature and temperature variation cycles. Based on ANSYS SIMPLORER, a novel method of decoupling the device and inverter simulation is proposed to maintain...
Elephants have to maintain stability of a body weighing 2700 kg – 4500 kg in a wide range of unstructured terrain conditions. To achieve this, the dynamic walking control strategies of an elephant should be able to manage the large inertial forces working on the leg muscles. Therefore, understanding the gait patterns of an elephant can indicate the possible robust control strategies that an elephant...
This study investigated the performances of data fusion algorithms when applied to very high spatial resolution satellite images that encompass ongoing- and post-crisis scenes. The evaluation entailed twelve fusion algorithms. The candidate algorithms were applied to GeoEye-1 satellite images taken over three different geographical settings representing natural and anthropogenic crises that had occurred...
This paper investigates the theoretical requirements for unique localization of multiple emitters using time delay of arrival (TDoA) subjected to the data-association problem. Specifically, an examination is carried out to find the necessary fundamental requirements to solve the so-called ghost node problem pertaining to sensor arrays.
The ultra-wideband (UWB) wireless technology is a hot point in communication area. Pulse position modulation with time hopping (PPM-TH) and pulse amplitude modulation with direct sequence (PAM-DS) are two of the basic UWB modulation methods. In this paper, we study the performances of the traditional UWB and time reversal (TR) UWB in the PPM-TH and PAM-DS system respectively. We found that the performance...
Cyber security in interconnected smart grid is vital for reliability of power system operations. Power communication applications are different from cooperate information technology applications. Utilities that follow defense in depth strategy have to confront many network security technologies. This paper presents an application of IPSec tunnel in substation gateways. IPSec Encapsulating Security...
In this paper, we investigated the influence of asymmetric on TCP over HFC-based networks and related methods to improve the TCP performance. Then, a scheme called Modified Adaptive SACK Filtering is proposed to improve the TCP performance by adjusting the size of the block information in SACK option according to the real-time characteristics of network. Furthermore, based on the fact that the forward...
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