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Sensors, Volume 9, Issue 5

May 2009 - 44 articles

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Articles (44)

  • Article
  • Open Access
8 Citations
11,869 Views
34 Pages

25 May 2009

This paper presents two scheduling management schemes for wireless sensor networks, which manage the sensors by utilizing the hierarchical network structure and allocate network resources efficiently. A local criterion is used to simultaneously estab...

  • Article
  • Open Access
15 Citations
12,099 Views
16 Pages

A Heterogeneous Wireless Identification Network for the Localization of Animals Based on Stochastic Movements

  • Álvaro Gutiérrez,
  • Carlos González,
  • Javier Jiménez-Leube,
  • Santiago Zazo,
  • Nelson Dopico and
  • Ivana Raos

25 May 2009

The improvement in the transmission range in wireless applications without the use of batteries remains a significant challenge in identification applications. In this paper, we describe a heterogeneous wireless identification network mostly powered...

  • Article
  • Open Access
14 Citations
11,113 Views
23 Pages

Using Reputation Systems and Non-Deterministic Routing to Secure Wireless Sensor Networks

  • José M. Moya,
  • Juan Carlos Vallejo,
  • David Fraga,
  • Álvaro Araujo,
  • Daniel Villanueva and
  • Juan-Mariano De Goyeneche

25 May 2009

Security in wireless sensor networks is difficult to achieve because of the resource limitations of the sensor nodes. We propose a trust-based decision framework for wireless sensor networks coupled with a non-deterministic routing protocol. Both pro...

  • Article
  • Open Access
40 Citations
12,043 Views
24 Pages

Multi-Objective Differential Evolution for Automatic Clustering with Application to Micro-Array Data Analysis

  • Kaushik Suresh,
  • Debarati Kundu,
  • Sayan Ghosh,
  • Swagatam Das,
  • Ajith Abraham and
  • Sang Yong Han

25 May 2009

This paper applies the Differential Evolution (DE) algorithm to the task of automatic fuzzy clustering in a Multi-objective Optimization (MO) framework. It compares the performances of two multi-objective variants of DE over the fuzzy clustering prob...

  • Article
  • Open Access
66 Citations
14,164 Views
17 Pages

Guided Wave and Damage Detection in Composite Laminates Using Different Fiber Optic Sensors

  • Fucai Li,
  • Hideaki Murayama,
  • Kazuro Kageyama and
  • Takehiro Shirai

25 May 2009

Guided wave detection using different fiber optic sensors and their applications in damage detection for composite laminates were systematically investigated and compared in this paper. Two types of fiber optic sensors, namely fiber Bragg gratings (F...

  • Article
  • Open Access
73 Citations
10,857 Views
17 Pages

22 May 2009

The design, operation, and properties of the Finnish Geodetic Institute Field Goniospectrometer (FIGIFIGO) are presented. FIGIFIGO is a portable instrument for the measurement of surface Bidirectional Reflectance Factor (BRF) for samples with diamete...

  • Article
  • Open Access
38 Citations
13,278 Views
21 Pages

20 May 2009

In Atomic force microscope (AFM) examination of a vibrating microcantilever, the nonlinear tip-sample interaction would greatly influence the dynamics of the cantilever. In this paper, the nonlinear dynamics and chaos of a tip-sample dynamic system b...

  • Review
  • Open Access
227 Citations
30,373 Views
16 Pages

Sun Tracking Systems: A Review

  • Chia-Yen Lee,
  • Po-Cheng Chou,
  • Che-Ming Chiang and
  • Chiu-Feng Lin

20 May 2009

The output power produced by high-concentration solar thermal and photovoltaic systems is directly related to the amount of solar energy acquired by the system, and it is therefore necessary to track the sun’s position with a high degree of accuracy....

  • Article
  • Open Access
16 Citations
10,784 Views
11 Pages

19 May 2009

Although many optical fibre applications are based on their capacity to transmit optical signals with low losses, it can also be desirable for the optical fibre to be strongly affected by a certain physical parameter in the environment. In this way,...

  • Article
  • Open Access
25 Citations
11,337 Views
23 Pages

Novel Oversampling Technique for Improving Signal-to-Quantization Noise Ratio on Accelerometer-Based Smart Jerk Sensors in CNC Applications

  • Jose J. Rangel-Magdaleno,
  • Rene J. Romero-Troncoso,
  • Roque A. Osornio-Rios and
  • Eduardo Cabal-Yepez

19 May 2009

Jerk monitoring, defined as the first derivative of acceleration, has become a major issue in computerized numeric controlled (CNC) machines. Several works highlight the necessity of measuring jerk in a reliable way for improving production processes...

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Sensors - ISSN 1424-8220