International Journal of Research and Engineering
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    341 research outputs found

    Design, Analysis and Implementation of DLL clock generator

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    In this paper we present design, analysis and implementation of Delay Locked Loop (DLL) based clock generator circuits. In this work a DLL has been proposed the design uses dynamic phase detector (PD) for phase detection. Voltage controlled delay line (VCDL) of proposed DLL consists of twelve delay elements. Current starved inverters have been used as delay element. In this paper, a proposed duty cycle corrector solves the problem of the sensitivity to half transparent (HT) architecture and the stuck locking error in the DLL simultaneously proposed DLL is designed to work at an input frequency of 250MHz. The design also generates an output of 3GHz using a frequency multiplication block. The design uses 180nm CMOS process technology and consumes 1.88mW of power at 1.8V

    Mobile Technology for Health, Its Practicability and Cost Effectiveness in Improving Health Service Delivery in Nigeria: A Study of Potiskum Local Government

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    Mobile technology for Health, Its Practicability and Cost Effectiveness in Improving Health Service Delivery in Nigeria: A case study of Potiskum Local Government. This study was guided by the following research objectives: i) to establish the practical use of mobile technology in the health sector of Potiskum Local Government; ii) to examine the effectiveness of mobile technology in improving health service delivery in Potiskum Local Government; iii) to identify barriers to mobile technology implementation in the health sector of Potiskum Local Government and iv) to determine the relationship between mobile technology and service delivery in the health sector of Potiskum Local Government, Nigeria. The study employed cross-sectional survey design and data was collected using both open and closed ended questionnaires from a sample size of 377 respondents comprising of the patients, health workers and health system managers.The study established that the practical use of mhealth in the Health Sector of Potiskum Local Government included among others healthcare telephone helpline, emergency toll free telephone services and mobile phone technology for recording patient information. The study also revealed that mhealth is an efficient platform in improving healthcare service delivery. However, its potential is not yet fully explored in Potiskum Local Government. There were also a number of barriers such as operational cost, lack of knowledge and policies that hindered the smooth implementation of mhealth technology. Furthermore, the study indicated a significant correlation between mhealth technology and service delivery in Potiskum Local Government (r=0.985, r<0.000).The study concluded that there is a growing body of evidence for what works within mHealth and where the underlying barriers to and gaps in scale and sustainability are at present. Ultimately, mobile healthcare services and devices are only effective if adopted by healthcare professionals and patients. The study recommended that Healthcare solution providers must therefore focus on developing products and services that are easy to use, without additional layers of complexity. Healthcare professionals must see clear and immediate benefits from any new device before adding it to an already bulging doctor or nurse’s bag

    Intelligent Traffic Control System for Ambulance Clearance and Stolen Vehicle Detection

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    This paper deals with the effective use of wireless technology and high speed micro controller to provide smooth and clear flow of traffic for emergency vehicle to reach the destination on time. This is implemented by using ARDUINO, RFID reader for detecting the RFID tag placed in the emergency vehicle. The information on detecting the emergency vehicle is sent to the traffic system through RF transmitter and receiver system, for automatically controlling the traffic light until the emergency vehicle passes through. Pair of IR sensors is used to estimate the congestion near the traffic and this information is provided to the ambulance driver using GSM. In addition to this scheme, the system also detects the stolen vehicle passing through that path. On detecting the stolen vehicle the information is sent to the control room through GSM for immediate action

    An Implementation of Gesture Recognition Smart home technology using Android and Matlab

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    In this world where today’s home require sophistication every operations are performed by human are getting simple in order to make it more simpler we have introduced a new innovation for physically handicapped and for normal people. I present an innovation which has three modes. The current home automation systems either concentrate normal people or handicapped people. The first mode uses a smart phone with Bluetooth connection that has an application and the second mode is specifically designed for physically handicapped especially whose hand movements are captured for controlling home appliances and the third mode is hand gloves wireless system. This system design will cover both the hardware implementation and software interface of the wireless system. The biggest advantage of the system is that it can be used for handicapped and normal people thus reducing the cost of installation of three different home automation systems.In this world where today’s home require sophistication every operations are performed by human are getting simple in order to make it more simpler we have introduced a new innovation for physically handicapped and for normal people. I present an innovation which has three modes. The current home automation systems either concentrate normal people or handicapped people. The first mode uses a smart phone with Bluetooth connection that has an application and the second mode is specifically designed for physically handicapped especially whose hand movements are captured for controlling home appliances and the third mode is hand gloves wireless system. This system design will cover both the hardware implementation and software interface of the wireless system. The biggest advantage of the system is that it can be used for handicapped and normal people thus reducing the cost of installation of three different home automation systems

    Assiduousness of Domain production in Secretarial Executive System

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    In the foregoing dissertation, I tried to put forward language description formalism called Collages. It can be used to engineer Domain Specific Languages (DSLs), which are computer languages made to solve problems of specific domains. Here the focus on DSLs which have algorithmic design and are supposed to be used in corporate environments. Domain specific language can be broken in three parts, these are abstract syntax, description language conceptualization & relationship among them and last is their constraints which encode rules of domain. Domain’s concrete syntax produces graphical and textual presentation of abstract syntax elements. Their semantics meaning are normally defined operationally. Operational semantics normally encoded system behavior and could be described as a collection of “elements”, each denoting the transformation This paper present on sphere feature model, sphere architecture   design   and   area   implementation   in   an enterprise.  This  paper  demonstrates  the  accounting management   feature   modeling   based   on   the   extended (Feature-Oriented   Domain   Analysis)   FODA  method   and system architecture of accounting management domain, integrates Aspect Object Oriented Programming technology with domain implementation, and designs a whippersnapper AOP   framework   based  on  the  object   proxy  pattern  to separates crosscutting concerns in the domain implementation phrase. Research result shows this method can effectively seal insulate and abstract variability in requirements of accounting management domain, instruct the designing and implementation of accounting management components, get the requirement of software reuse, resource sharing and collaboration in accounting management domain

    A Research on Wireless Power Transmission using Distinguished Methodologies

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    Flat screen TV’s and picture frames that suspend on the wall-without needing a cable and plug up for power. Industrial structures and medical machines can be made more trustworthy by eradicating difficulty prone wiring and disposable batteries. The method takes the advantage of straightforward physics and could be used to indict a variety of electronic tools over numerous meters. The arrangement could substitute the miles of costly power cables and billions of throw-away batteries. There is rather like 40 billion throw-away batteries built each year for power that is employed within a petite inches or feet of where there is extremely low-cost power. If this knowledge is acknowledged in prospect it will make daily products additional expedient, consistent, and environmentally welcoming. This document includes the methods of transmitting power with no usage of wires with improved efficiency, due to which it does not influence the atmospheric surrounding

    Enhanced Designing of Five-Level Inverter based DSTATCOM using Fuzzy Logic

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    This project describes the modeling and the control of a distribution static synchronous compensator (DSTATCOM), with the point of enhancing the nature of electric system; we were additionally required to create and actualize a strategy for control by a fuzzylogic controller. Distribution STATCOM (D-STATCOM) is an inverter based power quality conditioner gadget used to enhance the power quality issues in appropriation frameworks. Exchanging beats for the five-level inverter are created by Space Vector Modulation (SVM). Simulation results are given to design the execution of our voltage controller using voltage shunt processing

    New Method to Achieve AC Harmonic Elimination and Energy Storage Integration for 12-Pulse Diode Rectifiers

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    The 12-pulse rectifier is often used to supply high power industrial loads. Its ability to effectively and cheaply mitigate the harmonics on the ac side has ensured its dominance in the industry even as active front ends become cheaper and more reliable. Despite its many benefits, the 12-pulse rectifier is not able to reduce the ac-side harmonics to a level acceptable by the pertinent IEEE standards without additional filtering. In this paper, we outline a novel method to profile the rectifier output current to be triangular which results in low ac-side harmonics. The novelty in the proposed approach is that we exploit the dc-side filter design to minimize the volt-amperes (VA) rating of the current source used to profile the dc-side rectifier current. Additional benefits of the proposed method include lower VA rating of the dc filter, simple integration of dc energy storage, and effective ac harmonic control even when the initial rectifier current is discontinuous

    Smart bus ticket collecting system

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    The  objective  of  this  paper  is  to  issue  tickets  in  public  transport  system  using  Android  mobile  and  a  smart  card. In  general, Every  Bus  has  a  conductor  who  will  collect  money  and  issues  ticket  to  each  passenger. It  will  take  a  lot  of  time  as  well  as  create  manual  error. To overcome this problem, a new  system is  proposed. In  this  proposed  system,IR  sensor  is  used  to  count  the  number  of  persons  entering  into  the  bus.Smart  card  used  here  is  an  RFID  which  is  rechargeable.It  contains the  informations  such  as  name,mobile  number  and  address.The  RFID  reader  will  read  the  information  in  the  RFID  Tag.A  message  will  be  send  to  the  concerned  persons  mobile.The  user  must  enter  the  destination.The  corresponding  amount  will  be  deducted  from  the  smart  card.The  microcontroller  used  here  is  PIC16F877A.Incase  of  any  accidents  or  misuses, a  message  will  be  send  to  the  checker  in  the  nearby  station  through  GSM.To identify the  location, GPS  is used

    PLC based coal level sensing in thermal power plants

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    This paper refers to the plc based automation that can be carried out in the coal mining area and thermal power plant where coal handling is of prime importance. A coal-fired power plant typically has silos, bunkers or stockpiles in which the fuel is placed for storage purposes. Real-time feedback sensors are utilized to sense the coal height so data can be sent to downstream systems for further processing.  there should be proper monitoring and observation over the level of the coal in the storage tanks which involves keeping continuous watch over the  tanks in hazardous conditions. The performance of ultrasonic, radar, and laser rangefinder sensors was investigated to determine the height of coal stockpiles in various sites in a coal-fired power plant.  hence this paper will bring you a brief idea about the various sensor that can be used to detect the level of the coal in the tanks with the sole controlling and monitoring action performed by programmable logic controller

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