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28,812 Article Results

Self-Corrective Autonomous Systems using Optimization Processes for Detection and Correction of Unexpected Error Conditions

10.11591/ijra.v5i4.pp262-276
Nicoladie D. Tam
A theoretical framework for autonomous self-detection and self-correction of unexpected error conditions is derived by incorporating the principles of operation in autonomous control in biological evolution.  Using the biologically inspired principles, the time-dependent multi-dimensional disparity vector is used as a quantitative metric for detecting unexpected and unforeseeable error conditions without any external assistance.  The disparity vector is a measure of the discrepancy between the expected outcome predicted by the autonomous system and the actual outcome in the real world.  It is used as a measure to detect any unexpected or unforeseeable errors.  The process for autonomous self-correction of the self-discovered errors is an optimization process to minimize the errors represented by the disparity vectors.  The strategies for prioritizing the urgency of corrective actions are also provided in the theoretical derivations.  The criteria for any change in direction of the corrective actions are also provided quantitatively.  The criteria for the detection of the minimization and maximization of errors are also provided in the autonomous optimization process.  The biological correspondences of the emotional responses in relation to the autonomic self-corrective feedback systems are also provided.
Volume: 5
Issue: 4
Page: 262-276
Publish at: 2016-12-01

Preliminary Analysis of Assessment Instrument Design to Reveal Science Generic Skill and Chemistry Literacy

10.11591/ijere.v5i4.5961
Woro Sumarni , Sudarmin Sudarmin , Wiyanto Wiyanto , Supartono Supartono
The purpose of this research is to design assessment instrument to evaluate science generic skill (SGS) achievement and chemistry literacy in ethnoscience-integrated chemistry learning. The steps of tool designing refers to Plomp models including 1) Investigation Phase (Prelimenary Investigation); 2) Designing Phase (Design);  3) Construction/Realization Phase (Realization/Construction) ; 4) Test, Evaluation and Revision Phase. (Test, Evaluation and Revision).  To test the validity of assessment instrument, it was used content validity by three experts as validators, while to test the practical, it was used questionnaire which were given to 22 college students of food ingredients chemistry that is integrated of ethno-science and two supporting lecturers. The result of content validity showed that assessment tool which was developed was valid stated by experts with the reliability coefficient was 0,72. Every lecturers and 21 students gave positive response, so it can be concluded that developed assessment instrument was practice to use.
Volume: 5
Issue: 4
Page: 331~340
Publish at: 2016-12-01

Adjustment and Other Factors Related to High School Aged Students Identified as Hearing Impaired

10.11591/ijere.v5i4.5952
Charlene Milano , Tara Upshire , Sarah Scarazzo , Benjamin P. Schade , Karen H. Larwin
Healthy social, emotional and cognitive development of deaf children depends upon complex interactions between the many individual and environmental factors associated with deafness. Deaf children and adolescents have been reported to possess greater rates of mental health problems than hearing children and adolescents. Dysfunction in one or more systems impacts the other systems in the child’s life. Dysfunction increases the risk for maladjustment and poor mental and emotional health. Deaf youth are at greater risk for disruption in interactions between the child and their environment and therefore are also at greater risk for social and emotional problems. Data from the National Longitudinal Study of Adolescent to Adult was used to gain a better understanding of deaf student’s feelings of acceptance at school, reported positive feelings, academic grades and future plans. Twelve (12) deaf students were included in a total of 456 youth participants from across the county. No significant differences were found between the two groups. 
Volume: 5
Issue: 4
Page: 255~260
Publish at: 2016-12-01

Orientation Singularity Analysis of Parallel Manipulators

10.11591/ijra.v5i4.pp295-304
Qimin Xu
In this paper, an approach for orientation singularity analysis of parallel manipulators (PMs) is proposed by introducing several performance indices referred to theunique form of screw based Jacobian in the velocity transmission as well as force transmission. Here, to prove the effectiveness of the approach, an example of 3 degrees of freedom (DOF) prismatic-revolute-spherical (PRS) parallel manipulator (PM) is first presented to illustrate the fact that the distributions of singularity boundary of the proposed approach is consistence with the result referred to nonredunant PMs by Liu et al. [22]. Further, the proposed approach is an appropriate one not only for nonredunant PMs, but also for a class of redunant PMs by providing another example of the redunant variable geometry truss (VGT) PM, since the performance index of orientation singularity for the manipulator can becreated only by determining the unique form of screw based Jacobian.
Volume: 5
Issue: 4
Page: 295-304
Publish at: 2016-12-01

Anchor Movement Strategy for Conjecture Geometry Based Localization Scheme in Wireless Sensor Network

10.11591/ijra.v5i4.pp255-261
Niraj Bhupal Kapase , Santosh P Salgar , Mahesh K Patil , Prashant P Zirmite
Abstract—Localization of sensor node with least error is one of the major concern in wireless sensor network as some of the application require sensor node to know their location with high degree of precision. For mobile anchor based localization many of the path planning schemes already developed which includes scan, double scan, Circles & S- Curves. These path planning schemes have some limitations like localization error, Number of sensor nodes covered in the network, Trajectory length of mobile anchor node.  This paper represents anchor movement strategy which is based on Scan path, with modifications are made in such a way that it satisfies the requirements of localization scheme.  This movement strategy ensures that trajectory of mobile anchor node will minimize localization error and also will cover majority of sensor node in the environment. The localization error yielded by Modified Scan algorithm is in the range of 0.2 to 0.4m which is quite lower than the other existing mentioned path planning strategies producing localization error in the range 0.6 to 1.8mKeywords—Localization; Mobile anchor node; Wireless sensor network; Modified Scan algorithm
Volume: 5
Issue: 4
Page: 255-261
Publish at: 2016-12-01

Midwives Performance in Early Detection of Growth and Development Irregularities of Children Based on Task Commitment

10.11591/ijere.v5i4.5957
Sri Utami , Nursalam Nursalam , Rachmat Hargono , Rekawati Susilaningrum
The purpose of this study was to analyze the performance of midwives based on the task commitment. This was an observational analytic with cross sectional approach. Multistage random sampling was used to determine the public health center, proportional random sampling to selected participants. The samples were 222 midwives in the public health center of Surabaya City. Data were collected by questionnaires on exogenous variables and sheet of data collectors for the performance of midwives. Data was analyzed by using Partial Least Square (PLS). This study found the results of the self leadership directly affects the performance with the value of T-statistic of 3.852> T-table (1.96) with the value of the path coefficient of 0.257, while the value of the indirect influence on the strategy of self leadership performance through mediator task commitment with path coefficient value of 0.053. These models can be used as a reference in improving the performance of midwives in other activities related to maternal and child health services.
Volume: 5
Issue: 4
Page: 300~305
Publish at: 2016-12-01

Performance Analysis of 5-Phase Multi-level Inverter Using Carrier Based PWM Technique

10.11591/ijape.v5.i3.pp151-158
M. Lavanya , B. Jyothi
The major analysis has been based on the induction machine drive system that is for the analysis of the carrier based PWM two level source inverter. The unbalanced conditions are mainly to handle the results of simulation for the analysis that results in the two fault conditions. The system setup has been involving the voltage source inverter as well as the five phase multi-level inverter. The effects are through performing the scenarios which consider the performance effects with the load on induction machine. The simulation is based on the imbalance conditions which results on the oscillations depending on the electromagnetic torque through the attendant reduction of the torque rating. The larger slipping has been in the rotor speed.
Volume: 5
Issue: 3
Page: 151-158
Publish at: 2016-12-01

Takagi-Sugeno Fuzzy Perpose as Speed Controller in Indirect Field Oriented Control of Induction Motor Drive

10.11591/ijai.v5.i4.pp149-157
Roslina Mat Ariff , Dirman Hanafi , Wahyu Mulyo Utomo , Nooradzianie Muhammad Zin , Sy Yi Sim , Azuwien Aida Bohari
This paper deal with the problem in speed controller for Indirect Field Oriented Control of Induction Motor. The problem cause decrease performance of Induction Motor where it widely used in high-performance applications. In order decrease the fault of speed induction motor, Takagi-Sugeno type Fuzzy logic control is used as the speed controller. For this, a model of indirect field oriented control of induction motor is built and simulating using MATLAB simulink. Secondly, error of speed and derivative error as the input and change of torque command as the output for speed control is applied in simulation. Lastly, from the simulation result overshoot is zero persent, rise time is 0.4s and settling time is 0.4s. The important data is steady state error is 0.01 percent show that the speed can follow reference speed. From that simulation result illustrate the effectiveness of the proposed approach.
Volume: 5
Issue: 4
Page: 149-157
Publish at: 2016-12-01

Artificial Bee Colony Algorithm for An Optimal Solution for Combined Economic and Emission Dispatch Problem

10.11591/ijape.v5.i3.pp111-119
Sandeep Bhongade , Sourabh Agarwal
In India Electrical Energy is generated mainly Coal based Thermal Power stations and hydro Electric Power Stations. The main aim of power generating company is to provide good quality and reliable power to consumers at minimum cost. The problem of Combined Economic and Emission Dispatch  deals with the minimization of both fuel cost and emission of pollutants such as oxides of Nitrogen and Oxides of Sulphur. In our power system the emission is major problem created that’s why in now a days we move from green energy source or renewable energy such as Sunlight, Wind, Tides, Wave, and Geothermal Heat Energy. The Emission constrained Economic Dispatch problem treats the emission limit as an additional constraint and optimizes the fuel cost. In this paper we optimizes the Combined Economic and Emission Dispatch problem by using two different optimization method such as Artificial Bee Colony (ABC) and Genetic Algorithm (GA).The proposed ABC Algorithm has been successfully implemented is to IEEE 30 bus and Indian Utility sixty two Bus System The simulation result are compare and found the effective algorithm for Combined Economic and Emission Dispatch problem.
Volume: 5
Issue: 3
Page: 111-119
Publish at: 2016-12-01

Optical Interconnect Waveguide in Electronic Circuit

10.11591/ijece.v6i6.pp2708-2715
Siti Sarah Binti Md Sallah , Sawal Hamid Md Ali , Nurjuliana Binti Juhari , P. Sushitha Menon , Md Shabiul Islam
The increasing demand in silicon nano-photonics has encouraged many researchers to put more efforts to explore the feasibility of using optics in the communication medium in order to replace the conventional electrical interconnects (EIs). In this paper, we proposed a SOI- based waveguide in the optical interconnect (OI) link at an operating frequency of 1550nm to work as an interconnection path in a circuit. The performance capability of the OI link was tested using a two-stage CE amplifier to work as the interconnection path from the 1st stage to the 2nd stage amplifier. In term of optical performances, the optical waveguide interconnect managed to achieve a single mode condition for a TE mode and fulfill the receiver sensitivity of a photodiode. While, in term of electrical performance, a two-stage CE amplifier is able to produce a high gain, a wide bandwidth and high slew rate. The proposed implementation of the OIs waveguide is succesfully enhance the performance of the two-stage CE amplifier as well as the analog electronic circuit applications.
Volume: 6
Issue: 6
Page: 2708-2715
Publish at: 2016-12-01

Evaluation of Various Digital Controllers for Forward Converter with Active Clamp

10.11591/ijece.v6i6.pp2846-2854
Ravindra Janga , Sushama Malaji
This research paper presents the design issues of digital Controllers for Forward Converter with Active Clamp circuit (ACFC). Brief review of Working Principle and mathematical modelling of the converter is first given. The importance of Digital Controllers for forward converter and design procedure is described in detail. And the validity of designed controllers and achievement of desired compensation is verified by the results of implemented digital controllers to Active clamp forward Converter (ACFC). Finallly results are analyzed by applying disturbances at both supply end and Load ends of the converter. And the conclusions are made based on obtained results of Voltage Mode Controller (VMC) by comparing with the results of the Current Mode Controller (CMC).
Volume: 6
Issue: 6
Page: 2846-2854
Publish at: 2016-12-01

Finding the Optimal Value for Threshold Cryptography on Cloud Computing

10.11591/ijece.v6i6.pp2979-2988
Weena Janratchakool , Sirapat Boonkrong , Sucha Smanchat
The objective of using threshold cryptography on cloud environment is to protect the keys, which are the most important elements in cryptographic systems. Threshold cryptography works by dividing the private key to a number of shares, according to the number of virtual machines, then distributing them each share to each virtual machine. In order to generate the key back, not all the shares are needed. Howerver, the problem is that there has been no research attemping to find a suitable threshold value for key reconstruction. Therefore, this paper presented a guildline designed and implemented that can assist to choose such value. The experiment was setup using CloudSim to simulate cloud environment and collecting time taken in key distribution and key reconstruction process to achieve the optimal threshold value.
Volume: 6
Issue: 6
Page: 2979-2988
Publish at: 2016-12-01

A Step Down Transformerless Single Switch Integerated Buck and Buck-Boost Converter

10.11591/ijape.v5.i3.pp144-150
P. Maithili , C. Tharani , J. Nivedha , D. Soundarrajan
This paper presents about the designing of the controller for integrated Buck Buck-Boost converter for maintaining the constant DC output voltage. This constant output voltage can be used for low voltage application. The absence of transformer includes the advantages of losses is less, efficient power factor and high efficiency. It provides the simple control structure with the positive constant output voltage .It operates on the closed loop with the designing of the PI controller for a MOSFET switch to provide the gate pulse. Whatever may be the input voltage it will produce the constant output voltage. The converter is successfully done by using MAT Lab/Simulink and verified the error reducing to negligible values.
Volume: 5
Issue: 3
Page: 144-150
Publish at: 2016-12-01

A Novel Human STR Similarity Method using Cascade Statistical Fuzzy Rules with Tribal Information Inference

10.11591/ijece.v6i6.pp3103-3111
M. Rahmat Widyanto , Reggio N. Hartono , Nurtami Soedarsono
A novel human STR (Short Tandem Repeat) similarity method using cascade statistical fuzzy rules with tribal information inference is proposed. The proposed method consists of two cascade Fuzzy Inference Systems (FIS). The first FIS is to discriminate the tribal similarity, and the second FIS is to calculate the STR similarity. By using the allele marker’s statistical distribution probability density function as the membership function in the Fuzzy Rules of the first FIS, the new method makes it possible to tell the tribal similarity between two STR profiles. A 727 data acquired from tribal groups of Indonesia is used to examine the method produced promising result, being able to indicate higher tribal similarity score within a tribal group and lower similarity between tribal groups. In the light of Indonesia’s diverse tribal groups, these properties are able to be leveraged as a new way to improve the versatility of existing DNA matching algorithm.
Volume: 6
Issue: 6
Page: 3103-3111
Publish at: 2016-12-01

Low Common-Mode Gain Instrumentation Amplifier Architecture Insensitive to Resistor Mismatches

10.11591/ijece.v6i6.pp3247-3254
Zainul Abidin , Koichi Tanno , Shota Mago , Hiroki Tamura
In this paper, an instrumentation amplifier architecture for biological signal is proposed. First stage of conventional IA architecture was modified by using fully balanced differential difference amplifier and evaluated by using 1P 2M 0.6μm CMOS process. From HSPICE simulation result, lower common-mode voltage can be achieved by proposed IA architecture. Actual fabrication was done and six chips were evaluated. From the evaluation result, average common-mode gain of proposed IA architecture is 10.84 dB lower than that of conventional one without requiring well-matched resistors. Therefore, the proposed IA architecture is suitable for biological signal processing.
Volume: 6
Issue: 6
Page: 3247-3254
Publish at: 2016-12-01
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