Optimization Techniques for Low Power VLSI Design

Kavya R

PG Student [VLSI Design and Embeded Systems], Dept. of ECE, Sri Jayachamarajendra College of Engineering, Mysuru, Karnataka, India

 

Dr. S.Gayatri

Assistant Professor, Dept. of, ECE

Sri Jayachamarajendra College of Engineering,

Autonomous under VTU, Mysore, Karnataka, India

Abstract– With shrinking technology, as power density (measured in watts per square millimetre) is raising at an alarming rate, power management is becoming an important aspect for almost every category of design and application. Reducing power consumption and over all on chip power management are the key challenges in deep sub micro meter nodes due to increased complexity.

 

Power management needs to be considered at very early design stages. Also low-power techniques should to be employed at every design stage, from RTL (Register Transfer Level) to GDSII. This survey paper describes the various strategies, methodologies and power management techniques for low power VLSI circuits. Future challenges that must be met by designers to designs low power high performance circuits are also discussed. State-of-the-art optimization methods at different abstraction levels that target design of low power digital VLSI circuits are surveyed.

Keywords— Optimization, low power, power dissipation, power management

TRAFFIC CONTROL SYSTEM FOR AMBULANCE CLEARANCE AND STOLEN VEHICLE DETECTION USING ARM 7 ARCHITECTURE

Miss R.PRAVALLIKA. Mr. L. RAVI CHANDRA

M.Tech (ECE) from CHALAPATHI I INSTITUTE OF ENGINEERING AND TECHNOLOGY 

Assistant Professor, Department of Electronics and Communication Engineering, CHALAPATHI I INSTITUTE OF ENGINEERING AND TECHNOLOGY, Andhra Pradesh State, India.


ABSTRACT:

This present day the road accidents in brand new urban areas are elevated to uncertain level. The loss of human lifestyles because of accident is to be refrained from. Site visitors congestion and tidal go with the flow are main information that purpose prolong to ambulance. To bar loss of human lifestyles as a result of accidents we introduce a scheme referred to as ITLS (wise traffic mild system). The principal theme at the back of this scheme is to provide a smooth go with the flow for the emergency automobiles like ambulance to arrive the hospitals in time and thus minimizing the lengthen induced with the aid of traffic congestion. The suggestion in the back of this scheme is to implement ITLS which would manipulate mechanically the traffic lights within the path of the ambulance. The ambulance is controlled via the manage unit which furnishes enough route to the ambulance and in addition controls the site visitors mild in line with the ambulance region and for this reason achieving the health facility safely. The controller identifies the region of the accident spot through the sensor systems in the vehicle which determined the accident and as a consequence the controller walks through the ambulance to the spot. This scheme is totally computerized, consequently it finds the accident spot, controls the site visitors lights, serving to to reach the clinic in time.

Keywords:-RFID, GSM, ARM 7, ambulance vehicle, stolen vehicle, congestion control, traffic junction

Impact of Oil And Non-Oil Export on Nigeria Economy By

Ajayi Olaniyi Adewale

Department of Educational Foudation and Management.

Ekiti State University, Ado –Ekiti, Ekiti State, Nigeria

 ABSTRACT

This paper examined the impact of oil and non-oil export on Nigerian economy. It reviewed literature on the macroeconomic policy and the relative impact of oil and non-oil export on the economy. It also reviewed the contribution of both oil and non-oil export on Nigeria Gross Domestic Product over the years and compared the contribution of both oil and non-oil export on Nigerian economy. This was necessitated by the need to understand the contribution of both oil and non-oil export on Nigerian economy. The study concluded that oil has greater contribution to the economic growth of Nigeria due to the neglect of agriculture since the beginning of oil boom.

Keywords: Agriculture, Economy, Macro-economic Policy, Non- Oil, Oil

A NOVEL METHOD OF HOME ENERGY MANAGEMENT SYSTEM USING MICROCONTROLLER FOR INCREASING LOAD FACTOR

Author

Mr. Nikhil S. Batra

Student, M.Tech (I.P.S.)

Department of Electrical Engineering, TGPCET, Nagpur (MH), India

Co-Author

Dr. Harikumar Naidu

Guide and Head

Department of Electrical Engineering

TGPCET, Nagpur (MH), India

 

 

ABSTRACT: Demand side management encourages the users in a smart grid to shift their electricity consumption in response to varying electricity prices. In this paper, we propose a distributed framework for the demand response based on cost minimization. Each user in the system will find an optimal start time and operating mode for the appliances in response to the varying electricity prices. We model the cost function for each user and the constraints for the appliances. We then propose an approximate greedy iterative algorithm that can be employed by each user to schedule appliances. In the proposed algorithm, each user requires only the knowledge of the price of the electricity, which depends on the aggregated load of other users, instead of the load profiles of individual users. In order for the users to coordinate with each other, we introduce a penalty term in the cost function, which penalizes large changes in the scheduling between successive iterations. Numerical simulations show that our optimization method will result in lower cost for the consumers, lower generation costs for the utility companies, lower peak load, and lower load fluctuations. [1]

Keywords— advanced metering infrastructure, appliance scheduling, demand response, distributed optimization, time-dependent pricing, Walrasian equilibrium, welfare theorem.

REVERSE NEAREST NEIGHBOURS IN UNSUPERVISEDD DISTANCE-BASED OUTLIER DETECTION

Mr. Pramod.N

PG Scholar, Department of computer science and Engineering, Maharaja Institute of Technology (MIT), Mysore, Karnataka, India

     Prof. Honnaraju.B

Assistant professor, Department of computer Science and Engineering, Maharaja Institute of Technology (MIT), Mysore, Karnataka, India


ABSTRACT:

Outlier detection in high-dimensional data presents various challenges resulting from the “curse of dimensionality.” A prevailing view is that distance concentration, i.e., the tendency of distances in high-dimensional data to become indiscernible, hinders the detection of outliers by making distance-based methods label all points as almost equally good outliers. In this paper, we provide evidence supporting the opinion that such a view is too simple, by demonstrating that distance-based methods can produce more contrasting outlier scores in high-dimensional settings. Furthermore, we show that high dimensionality can have a different impact, by reexamining the notion of reverse nearest neighbors in the unsupervised outlier-detection context. Namely, it was recently observed that the distribution of points’ reverse-neighbor counts becomes skewed in high dimensions, resulting in the phenomenon known as hubness. We provide insight into how some points (antihubs) appear very infrequently in k-NN lists of other points, and explain the connection between antihubs, outliers, and existing unsupervised outlier-detection methods. By evaluating the classic k-NN method, the angle-based technique designed for high-dimensional data, the density-based local outlier factor and influenced outlierness methods, and anti hub-based methods on various synthetic and real-world data sets, we offer novel insight into the usefulness of reverse neighbor counts in unsupervised outlier detection.

Speed control of BLDC motor for five-level DC-DC converter with asymmetrical control strategy

Pravana S

M-tech Student Scholar

Department of Electrical & Electronics Engineering,

Anurag College of Engineering , Aushapur;

Ranga Reddy (Dt); Telangana, India.

Gujjari Chandra

 Assistant Professor

Department of Electrical & Electronics Engineering,

Anurag College of Engineering , Aushapur;

Ranga Reddy (Dt); Telangana, India.

 

 

Abstract – In this project, an asymmetrical duty cycle control strategy was proposed to the TPTL dc/dc converter. The modified converter remains all the advantages of original control strategy; meanwhile, soft-switching can be achieved using the energy stored in output filter inductance and leakage inductances of transformers (or resonant inductances).Three-phase three-level (TPTL) dc/dc converter has the advantages of lower voltage and current stress on switches, which is suitable for high power and high input voltage applications. Adopting a symmetrical control strategy, the ripple frequency of input and output current can be increased significantly, resulting in a reduced filter requirement. However, all the switches are hard-switching, leading to a considerable switching loss. Full-bridge dc/dc converters have been used widely in the medium-to-high-power applications for the pulse width = modulation (PWM) control, soft-switching characteristics, and lower power rating on switches. To further reduce the current stress on switches for higher power level requirements, a prominent three-phase full-bridge topologies was first put forward by Ziogas for medium-voltage-level applications [1], in which three-phase bridges consisting of six switches and a three-phase transformer are adopted. With the three-phase architecture, the converters has the superior features, including lower current rating of switches, reduced input and output current ripple allowing small size filter requirement and better utilization of transformer core. The improved resonant converter features zero-voltage-switching (ZVS) realization under wide load range and higher conversion efficiency. However, wide variation in switching frequency should be concerned in the applications with wide input/output voltage range. Other alternative solutions are the non resonant soft-switching three-phase converters. in order to obtain ZVS commutation for all switches and control the output voltage, Nevertheless, the upper and lower commutation cell switches are subjected to different current stresses) is improved by using MAT Lab/Simulink. The proposed concept can be implemented with five levels the proposed concept can be implemented for speed control of BLDC motor using Matlab/Simulink software

Index Terms—Asymmetrical duty cycle control, dc/dc converter, three-level, three-phase, zero-voltage switching.

Public Expenditure, Management And Administration In Nigeria Tertiary Institutions: The Need For A Revisit BY

Nyikyaa Miriam Nguavese 1, Iliya Bawa2 and Ahmed Isa Yanga3

  Federal Polytechnic Nasarawa – Nigeria

  Abstract

The Nigeria fiscal system evolved and operated on principles that negated the main features of public expenditure management which include among others allocation, efficiency and equity, guided by the principles of needs, equity, stability and national interest, the Nigeria tertiary institution seem to be in perpetual traumas. Tertiary education in Nigeria is faced with a lot of challenges ranging from the historical factors of the misappropriation of funds caused by the high level of corruption and embezzlement in conjunction with the lackadaisical attitude of government officials towards the growth of the sector. This study call for a revisit on the management and administration of public funds allocated to the tertiary institutions. The study is a qualitative research and based on secondary data. The pieces of information gleaned from the foregoing sources are weighed in relation to the topic using both deductive and inductive reasoning. It was recommended that there should be a legal procedures for administrative and other restrictions on the expenditure of public resources that enhance transparency, accountability, fairness and objectivity.

 

Keywords: Education, Administration, Funds, Management, Institution, Tertiary, Public.

Fish Production, Poverty Mitigation and Co-Operative Goals of Fagam Co-Operative Fish Farm In Kano State, Nigeria

       M.A.Dambatta,1 O. A. Sogbesan,2 A.U.Fagge,1Suleiman I. Dutse,1A.U. Shuaibu3

               Corresponding author:

*Kano University of Science and Technology Wudil, Department of Forestry, Fisheries and Wildlife

** Moddibo Adama University of Science And Technology Yola, Department of fisheries management.Adamawa State, Nigeria

***Kano University of Science and Technology Wudil, Department of Agricultural Economics and Extension management

Abstract:

The effort was made to make this research project to become reality this was achieved by visiting (Fagam-farm) a case study area. With a view to explore how fish production mitigate poverty among the populace of Kano state and to identify the challenges facing the farmers and marketing operation of fish produced, the socio-economic characteristic of the fish farmers of Fagam co-operative farm, the fish production form, marketing strategy and the co-operative goals. Based on the above observation made, recommended that, female are not involves in the sector due to the religion purposes and the majority of the respondent are single within the age category of (8-25). Most of the respondents possess an educational certificate of secondary level were minority of them possess Qur’anic, primary and tertiary certificate. Also majority of the respondents are within the extended family and their family size are in the category of (5-10) where others are in the category of (11-15) it indicated that, all the respondents that interviewed in Fagam farm are purely Muslim in religion whereas no any Christian that work or employed in the farm. The highest numbers of pond that they use in Fagam farm are concrete ponds while others are earthen and plastic pond. Also the type of ponds size dimension are all largest size and the higher percentage of practical culture method they practice is mono-culture while the less percentage is poly culture and all the pounds were constructed manually. The type of feed they used is only imported and the majority type of farming management consider is intensive system while the minority is semi-intensive and the cost of feeding poor circle obtained is 100% high, because the farm has a big size and they practice intensive management system which consumes more capital than the other management system included in the farm.

KEY WORDS:POVERTY, MITIGATION, FAGAM, KANO STATE, COOPERATIVE.

Documenting initiatives on urban transformation in South-East Europe

Florina Jerliu1 and Bujar Bajçinovci 1, *

1 Faculty of Civil Engineering and Architecture, University of Prishtina, Kosovo

* Corresponding author

Abstract

Rapid transformation of cities and urban spaces in South-East Europe (SEE) since 1990s is closely related to the common experience of post-socialist and/or post-war challenges in the region. Among pressing issues identified as a common challenge in the region is the trend of self-regulation or unchecked urban development, which contrasts the pre-1990s conventional central planning and development format. This has drawn the attention of a wider Europe, which resulted in a number of initiatives, both governmental and nongovernmental, been created to jointly initiate regional projects that aim at developing urban solutions. The emerging criticism developed by such initiatives has played and important role in raising the awareness about the complexity and the need to address the SEE context within the context of Europe as a whole. This paper introduces the nature of urban transformation in SEE through the example of capital cities; it further documents commonly identified urban development challenges by two regional initiatives, NALAS and Archis SEE Network, from the perspective of authors, the first being a member in both networks. Results suggest that the way forward is to foster national legal frameworks in SEE by taking into account the contextual inputs for urban interventions, in terms of both urban policy and case study projects, developed through regional and international cooperation.

Keywords: South East Europe, regional initiatives, urban transformation, self-regulation, unchecked development, urban intervention

LIBRARY EDUCATION PROGRAMME AND USERS’ ACCESSIBILITY TO INFORMATION RESOURCES IN FEDERAL POLYTECHNIC LIBRARY, EDE, NIGERIA

Dr. Aboyade, Wahab Akanmu

Obafemi Awolowo University, Ile-Ife, Nigeria

Ajala, Bolanle Adewumi

Federal Polytechnic Library, Ede, Nigeria

 Aboyade, Modupeola Aduke

Department of Library and Information Science, Federal Polytechnic, Ede. Nigeria.

 

Abstract 

Library education programme in any academic library is planned to ease the work of librarians and at the same time quickens the efforts of the users in accessing and utilizing library materials. However, the aim of this programme is not felt significantly in the ways and manner students of Federal Polytechnic, Ede use library resources. To elicit responses from respondents, 1400 copies of questionnaire were distributed to both male and female students, out of which 1205(86%) were returned and found suitable for analysis. The respondents affirm library user education as being germane to the use of library materials and resources. The findings further revealed library orientation, bibliographic instruction and library tour as popular methods of library education programme. Furthermore, the respondents indicated their difficulties in accessing library resources independently due to low level of user education. In the light of the findings, the researchers recommended that the polytechnic library should improve on its library orientation programme. Also, priority should be given to the use of bibliographic aids and guides to help users in the use of library resources effectively and efficiently with minimal or no assistance. Equally, overhead projector, electronic board and Power Point should be employed in delivering library education programmes among others.

Keywords:   Library education programme, users’ accessibility, information resources,                             federal polytechnic