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We describe an efficient contour generation scheme implemented on a general purpose graphics processing unit (GPU) which extracts multiple contours in parallel from a high resolution multivalued image or depth map. In this paper, we describe an extension of a two stage crack based contour generation on GPU whose performance is hampered by horizontal dependencies generated when a contour crosses a...
Compact fluorescent lamps (CFLs) and light emitting diodes (LEDs) are some examples of non-linear, power electronics-based loads in the power distribution systems. They inject harmonic currents and draw reactive power because of the ballast and power electronic circuits. Although they are attractive because of their better luminous efficacy, the accumulated impact of thousands of them may affect utility's...
The Wireless Sensor Networks (WSNs) are widely being used for monitoring different environments and are very effective for monitoring those areas where human presence can be critical. Meanwhile, Cloud Computing (CC) has emerged as a very large scale computational and storage service with pay-as-you-go usage model which has taken the WSN to entirely a new paradigm. This integration of WSN with CC provides...
Twisted string actuators are widely used in different areas of robotics, however, their lifetime remains one of the main concerns for robotics. There are no comprehensive studies that relate the lifetime of a twisted string to its material properties and operation conditions, which can be important to improve the life cycle. This paper provides preliminary results of an extensive experimental study...
Hadoop Distributed File System (HDFS) is a famous distributed file system to access and store large files. It suffers from different memory, page fault, and processing bottlenecks while accessing storing a large number of very small sized files. In this research, we have studied architecture, operation, and behavior of HDFS while serving the access and storage requests for a very large number of very...
The proliferation of Distributed Energy Resources (DERs) in the Distribution Network (DN) has affected the optimal operation of the grid due to multiple technical issues such as voltage rise, reverse power flow, voltage unbalance, islanding etc. Therefore, optimal management of DERs is becoming a key research area to improve the system power quality. In this context, several active network management...
How different performance incidents of an individual are associated with role stress have obtained significant consideration. Role stress has significant impact on creativity of an individual but still it is not clear how exactly role stress is linked with employee's creativity because it has hardly ever been studied empirically. Our study explores the relation of main two factors of role stressors...
This empirical study investigates the influence of institutional and managerial ownership structures on firms' R&D investment decision and also moderating influence of state ownership among their relationship. We collect the data of 244 firms for the period of 2009 to 2015 from Chinese high-tech industry. We applied the fixed effect panel data model regression to test three hypothesis of the study...
The advancement in the fields of science, engineering, social networking and e-commerce along with the tremendous growth in the pervasive technologies has generated a tsunami of data in digital form. To store and process this type of data is a big challenge for the researcher. Different distributed computing and processing systems have been developed to overcome these real world data computational...
Visibility measurement and associated visualization are essential for monitoring the operation of emerging converged software-defined infrastructure (SDI). However, most of existing monitoring tools are not yet ready to cover systematically whole visibility workflow. Thus, in this paper, we present an integrated design for multi-layered visibility workflow, denoted as 'SmartX MultiView Visibility...
Glaucoma is an eye problem that affects the retina and weakens the nerve cells that assist in visual recognition. This disease can be the cause of blindness and visual impairment if not treated earlier. Increase in Intraocular pressure (IOP) is the main cause for glaucoma presence and succession. The diameter of the optic cup within optic disc region is increased due to the excessive retinal pressure...
In this paper, we propose an adaptive framework for the variable power of the fractional least mean square (FLMS) algorithm using the concept of instantaneous error energy. The proposed algorithm named variable power-FLMS (VP-FLMS) is computationally less expensive and dynamically adapts the fractional power of the FLMS to achieve a high convergence rate with a low steady state error. For the evaluation...
The main target of this research work is to study the provision of indoor service (coverage) using outdoor base stations at higher frequencies i.e. 10 GHz in the context of a single building scenario. In an outdoor to indoor propagation, an angular wall loss model is used in the General Building Penetration (GBP) model for estimating the additional loss at the intercept point of the building exterior...
Pattern matching is an important class of problemsrelated to graphs. It is a fundamental problem for manyapplications and has been extensively studied in literature. Withthe advent of huge graphs, the challenges in this domain haveincreased manifold. Consequently a lot of recent research has ledto new architectures and approaches for optimized solutions tothe pattern matching problem. A vast majority...
The main target of this paper is to perform the multidimensional analysis of multipath propagation at higher frequencies i.e. 15 GHz and 28 GHz, using “sAGA” a 3D ray tracing tool. A real world outdoor Line of Sight (LOS) microcellular environment from the Yokusuka city of Japan is considered for the analysis. The simulation data acquired from the 3D ray tracing tool includes the received signal strength,...
Device-to-Device (D2D) communication has emerged as a new technology, which minimizes data transmission in radio access networks by leveraging direct interaction between nearby mobile devices. D2D communication has a great potential in solving the capacity bottleneck problem of cellular networks by offloading cellular traffic of proximity-based applications to D2D links. This provides several benefits...
Frequent itemset mining is a fundamental step in analysis of big data where correlation among the raw data in deemed necessary. In modern era the amount of data available for processing has grown exponentially, making it a stepper task for mining algorithms to provide solution in a timely manner. The software implementations are normally not efficient in handling such datasets thus focus on parallel...
The twisted string actuator is an actuator that is gaining popularity in various engineering and robotics and applications. However, the fundamental limitation of actuators of this type is the uni-directional action, meaning that the actuator can contract but requires external power to return to its initial state. This paper proposes 2 novel passive extension mechanisms based on buckling effect to...
Internet of Things (IoT) consists of networked tiny embedded computers (motes) that are capable of monitoring and controlling the physical world. Examples range from building security monitoring to smart factories. A central problem of IoT is minimising the energy consumption of the motes, while guaranteeing high packet delivery performance, regardless of uncertainties such as sudden changes in traffic...
A state-observer based method is developed to solve point source localization problem for Poisson equation in a 3D rectangular prism with available boundary data. The technique requires a weighted sum of solutions of multiple boundary data estimation problems for Laplace equation over the 3D domain. The solution of each of these boundary estimation problems involves writing down the mathematical problem...
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