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Existing algorithms for orienting sensors in directional sensor networks have primarily concerned themselves with the problem of maximizing the number of covered targets, assuming that target identification as a non-issue. Such an assumption however, does not hold true in all situations. In this paper, a distributed heuristic algorithm for choosing active sensors and orienting them with the goal of...
In a file system used for big data analytics, hundreds of thousands of files exist. In such huge storage system, getting the metadata of a file takes long time. In this paper we propose an enhanced Bloom filter to accelerate the directory parsing process in large-scale file systems. Here a cache implemented on SSD keeps the metadata of directories and files accessed frequently or recently. When a...
This paper describes about compact approach for high dynamic range imaging in the mobile camera. The dynamic range of real world is much larger than that of the mobile sensor. So it's almost impossible to make high dynamic image with just one shot. This paper focuses on the small number of frames for high dynamic range imaging synthesis and the complexity of algorithm. With only one short and long...
Dyslexic is a medical term referred to people suffering from dyslexia. Dyslexia is viewed as a neurological defect that causes the subject's electrophysiological signal of the brain to process information differently from that of normal children. In this paper, we introduce a two-dimension (2D) neural distribution method of analyzing normal and dyslexic children in reading, writing and spelling. The...
Optimization techniques are become more popular for the improvement in control of Three Phase Induction Motor (TIM). Also the Volt/Hz (V/f) control and space vector pulse width modulation (SVPWM) are used to reduce the harmonics level related to other control and modulation techniques. This paper deals with the tuning of PI controller parameters to be used in TIM. Particle Swarm Optimization (PSO)...
The purpose of this paper is to present the investigation of impact pressure acting on the hemisphere cylinder when it hits the water. In this paper, a two-dimensional hemisphere cylinder is built to simulate the water-entry problem. The model enters into the calm water verticals with initial velocity in y-direction at 10m/s. The transient flow simulation is carried out using Fluent k-£ turbulent...
In order to acquire infrequent events as new ideas and evaluate the ideas quantitatively, it is necessary to know how people create and refine ideas and to model creating and refining process. In this paper, we focused on relations between thinking time and writing time in handwriting, and proposed to model the relation by externalization, classification, relation, transportation and systematization,...
Most of the multivariable control systems include interactions between different input-output pairs. The control problem becomes more complex in case of significant interactions because single loop control solutions cannot be applied directly. In such cases, reducing the interactions with a pre-compensator can be accepted as the first step of design process. In this study, two input two output systems...
This paper discusses the development of a public transit scheduling tool that can be run on a spreadsheet software. The main objective of the paper is to bridge the existing gap between the theoretical knowledge of bus service scheduling and local transport service providers in order for the latter to improve their service. Users of the tool are allowed to input onboard passenger counts, to analyze...
The paper deals with the two-step hybrid asymptotic method based on perturbation methods and phase integrals. Approximate analytical solution of the nonlinear problem of the vibrations of the aircraft near the rough surface was obtained. Comparison with the data of direct numerical integration of the equations of the original problem was done.
This paper introduces a new method for slope seeking control of the model-independent nonlinear continuous static scalar and unconstrained systems. The proposed controller is the generalization of a global optimization scheme based on multi-unit extremum seeking control that drives the estimated gradient to an arbitrary slope. Herein, a monotonically decreasing offset is introduced between the inputs...
The problem of the UAV path planning for given set of the waypoints avoiding requirements of differentiability of the program signal is considered. This problem is solved by the methods of non-holonomic mechanics via usage of decomposition, spatial lead and optimization of the quadratic performance index. Efficiency of this approach is illustrated by example.
The paper presents a new approach for determining the three-dimensional second-order mathematical model for empirical yield data on the basis of constructing a linear heteroskedasticity equation.
This miniworkshop focuses on diagramming as a problem solving tool. Unfortunately, many students enter engineering without valuing the use of diagrams in model-based reasoning. Too often, they see diagramming as something which is superfluous and disconnected from "real problem solving." Students often come to their first engineering course with a well-practiced strategy that uses a rote...
A previous approach for constructing dynamic compact thermal models of nonlinear heat diffusion in electronic components is extended from the single-port to the multi-port case. The approach maintains high levels of accuracy for small state-space dimensions of the model. It is also very efficient since it requires the solutions to a few linear heat diffusion problems in the frequency domain. The multi-port...
Auto-parallelization compilization is an essential way to obtain high efficient parallel code for High Performance Computers (HPCs) and Chip Multi-Processors (CMPs). For the parallelizing compilers, a fundamental step is array dependence analysis used for identifying the parallelizable code. Whereas, the existing dependence analysis approaches are only capable of recognizing few types of dependences,...
This paper proposes the orthogonal tensor sparse neighborhood preserving embedding algorithm (OTSNPE) for dimension reduction of the high-dimensional matrix data based on the bag of visual word and in combination with the sparse representation. OTSNPE applies sparse coding to local characteristic quantification of data through completion of within-class sparse representation and preserves the supervised...
Autostereoscopic display with lenticular sheets has been widely used in family and public TV to provide 3D vision because no auxiliary aid is required to acquire 3D perception. The need of 3D videos is a growing hot spot with the development of the lenticular-lens based stereoscopic display technology. The traditional 3D video format is side-by-side, which means it provides two views separately for...
Foreign direct investment as one of the major features of globalization is receiving more and more attentions. Therefore, it's important to analyze whether FDI promotes the technical progress of China. This paper analyzes the relation between FDI and the Chinese technical progress and then through analyzing the data of GDP and FDI from 1984 to 2011, this paper will conclude the results and give some...
Arc detection is difficulty for the processing, assembly and testing of industrial production because of limitations of the detection method, algorithm and the instrument. The least-squares algorithm usually is used to fit data in circle detection. The application of the conventional least-squares algorithm is limited, its roundness error is bigger, and precision is lower. For detecting arc with data...
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