IMPACT : International Journal of Research in Engineering & Technology

Number 4-2, 2016

1-6
THE METHOD OF FICTITIOUS AREAS FOR MODELING OF HYPERBOLIC EQUATIONS

Authors: TUKENOVA LYAILYA MURATBEKOVNA & SKAKOVA AIGUL JUMAKHANOVNA

Abstract

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Number of views: 515

In this article we examine the method of fictitious areas for the non-liner hyperbolic equations. The estimation of rate of convercence decisions is recaived. In some cases the unimproved estimation of convergence rate of the decision is received.

7-24
FPGA IMPLEMENTATION OF 30GBPS SECURITY MODULE FOR GPON SYSTEMS

Authors: KALYANI PEDDINA, SUNIL KUMAR DASARI & SATISH KUMAR REDDY M V

Abstract

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Number of views: 697

The need for privacy has become a high priority for both governments and civilians desiring protection from signal and data interception. Widespread use of personal communications devices has only increased demand for a level of security on previously insecure communications. Both DES (Data Encryption Standard) and AES are defined as symmetric key block ciphers [1], with the main difference being the bit length of the key (56 bit for DES). These symmetric-key encryption schemes use the same key for both the sender and receiver, and as a result eliminate the need for the verification server needed in public keying. Symmetric keying lends itself to work independently of an open network and in turn a higher level of system interoperability. Ever since DES [2] was phased out in 2001 and its successor, the Advanced Encryption Standard (also known as Rijndael) took its place, various AES implementations have been proposed both in software and hardware. This paper presents low cost and low power hardware architecture for the Advanced Encryption Standard (AES). In 1997, the National Institute of Standards and Technology promoted worldwide research into a replacement for DES, or the widely accepted Data Encryption Standard. In this brief, we present an efficient and cost-effective AES co-processor design [3]. To minimize cost, focusing on efficiency reduced overall hardware complexity. A VHDL hardware implementation [4] is also presented, utilizing a field programmable gate array (FPGA) as a prototyping platform. In this architecture, the main priority was not to increase throughput or decrease processing time but to balance these factors in order to minimize cost. A focus on low power and cost allows for scaling of the architecture towards vulnerable portable communications devices in consumer and military applications such as cellular phones, PDAs, digital radios, pagers, and similar lower speed communication embedded systems.

25-36
STUDY THE ASSOCIATION OF DAT1 GENE POLYMORPHISMS WITH ATTENTION DEFICIT HYPERACTIVITY DISORDER IN SAMPLE OF IRAQI PRIMARY SCHOOL CHILDREN

Authors: Shatha Q. Jawad Amina N. Al-Thwaini & Salwa Sh. Abdul-Wahid

Abstract

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Number of views: 473

Attention Deficit Hyperactivity Disorder is a multifactorial disorder which results from combination of environmental and genetic factors. If children with ADHD are identified early and appropriate interventions are made the problem is likely to be mitigated. The study was carried out to determine the frequencies of ADHD among Iraqi primary school pupils, and recognize the role of3UTR-VNTR ofDAT1 genein ADHD. The study sample included 1431 school pupils (777) males, and (654) females with age ranged between 8-12 years, selected from nine primary schools, at Baquba city. Revised version of RCBQ has been used as a means for identification of children with ADHD and prosocial (control).Genetic investigation were performed for Variable Number Tandum Repeats of 3UTRDATpolymorphysimsand the sequencing carried out in BioScience company (Nottingham,UK), association between ADHD and alleles was tested by odd ratio, the magnitude of this association was estimated by 95% confidence interval. The results revealed that 16.8% (241/1431) of those pupils have ADHD of combined type, males to females ratio was 2.2:1. This disorder was distributed highly among the age group 10-12years. Out of 241 ADHD pupils, 118 (49%) suffer ADHD of combined type comorbid with aggressive symptoms, 65.3% (77/118) of them were males and 34.7% ( 41/118) were females.The VNTR ranged between 3 to11 repeat, six alleles were identified 3,7,8,9,10 and 11R, while 4,5,6 R not found in this study. There was highly significant increase in the frequency of 10 R allele that found in 30%, 16% of ADHD and control groups respectively ( OR=0.412, p<0.01), also there was highly significant increases in the frequency of the genotype 9/10 among ADHD group (OR=1, p<0.01), which showed significant association as a risk effect, while 9R and 10/11 genotype was highly significant increased in control group (OR=1, P<0.01), revealed significant association as a protective effect. Conclusion: The frequency of ADHDsymptoms among primary school children in Baquba city is high and appear in males more than females.This study showed that 10R and 9/10 genotype of DAT1 3᾽UTR significantly associated with ADHD while 11R and 10/11R genotype significantly associated with normal control children.

37-46
POSITION CONTROL OF SINGLE LINK ROBOT MANIPULATOR USING BLDC MOTOR

Authors: R. Manikandan, R. Arulmozhiyal, & A. Preethi

Abstract

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Number of views: 551

Position servo control is more important in recent industrial and robotic applications. This paper presents the position control of robot arm using Brush Less DC (BLDC) motor. A single arm vertical rotating robot has been made through 360o movement with gear arrangement. While vertical movement of robot arm the load is varying with depending upon the position in nature. We need to maintain the speed of arm and desired position at whatever the load is varying in any directions. So it is required a four quadrant operation of drive with robust closed loop control. In this paper position is controlled through closed loop PI controller to get better dynamic performance. The simulated design is tested using various tool boxes in Matlab/Simulink environment. The hardware demonstration of robotic arm coupled with brushless DC motor drive has been obtained using dsPIC 30F2010 digital signal controller.

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THE RELATIONSHIP BETWEEN USER PREFERENCES AND IR PERFORMANCE: EXPERIMENTAL USE OF BEHAVIORAL SCALES FOR GOAL ALIGNMENT IN IR PROJECTS

Authors: Harvey Hyman, Rick Will & Terry Sincich

Abstract

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Number of views: 506

This paper tells the story of a series of experiments designed to explore the relationship between behavioral preferences and user performance in information retrieval projects. The experiments are a set of monitored user interactions with a randomly selected set of documents from a large corpus. Users’ behavioral preferences are recorded in a pre-test questionnaire, and their subsequent sessions are measured against standardized IR performance metrics of Recall and Precision. User IR performance is analyzed for significant correlations with a set of behavioral scales. The scales are designed to measure user preferences in the areas of tolerance for ambiguity, locus of control, innovativeness in technology, and dispositional innovativeness. Our findings support that a relationship exists between IR performance measures of recall and precision, and a user’s behavioral preferences. Our findings also suggest that behavioral preferences may be used to create a predictive model to forecast a user’s IR performance. These findings can be applied to organizations that prioritize strategies depending on the orientation of the searching and sorting goals for an electronic document collection being reviewed

75-84
DESIGN OF SPECIAL PURPOSE MANIPULATOR FOR HANDLING COMPONENT

Authors: JAYANT ARBUNE

Abstract

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Number of views: 516

Robotics is an advance technology, which is widely used across all over the world.In this paper we discuss how the problem in the company can be solved by using this technology. The problem is,to pick up the component from the conveyor and to place it on the bed of the CNC machine worker use the overhanging crane and to hold the component they use V-belt. It is wrong way to handling of component and not safe to worker. At this location in company the automation is required. The solution is hydraulic manipulator. In this paper we discuss design parameters of manipulator, design of manipulator and its partsand some required calculations.

99-102
VIBRATIONS IN PASSENGER BUS AND ITS ANALYSIS

Authors: SUWARNATORGAL

Abstract

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Number of views: 492

Vibration is always present in any operating machine and a vehicle is not an exception. Focusing on ride comfort of Occupants in a Bus, the vibration inputs coming directly from seat as well as the rattling body interiors are a major contributor to discomfort and fatigue. Issues like shaking rear view mirror combined with this fatigue, are also frustrating for Driver and is potential contributor to the accidents. Main objective in this paper is to study the points where the vibration in a passenger bus is occurring and how it gets transmitte