This paper presents a theoretical study of effect of applied magnetic field on the performance of pivoted curved slider bearing lubricated with couple stress fluid. Based on the Stokes couple stress theory, the modified Reynolds equation is derived which governs the fluid pressure in the flow region. The closed form expressions are obtained for pressure, load carrying capacity, frictional force and coefficient of friction to study the effect of magnetic field and couple stress parameter on these characteristics. The results predict that, the application of external magnetic field and the use of couple stress fluid increases the pressure, load carrying capacity and frictional force whereas decreases the coefficient of friction.

Key words: MHD, Couple Stress Fluid, Pivoted Slider Bearing,.

[1]. Hughes WF, "Magneto-hydrodynamics lubrication flow between parallel rotating disks", Journal of fluid mechanics, 13, pp.21-32 (1962).
[2]. Kuzma D.C, "The MagnetoHydrodynamics finite journal bearing", Journal of basic Engineering, 85,pp.424-428 (1969).
[3]. Malik M and Singh D, "Analysis of finite magneto-hydrodynamic journal bearings", Wear, 64, pp.273-280 (1980).
[4]. Lin J.R,"Magnetohydrodynamic Lubrication of Finite Slider Bearings", International Journal of Applied Mechanics and Engineering, 7, pp.1229-1246 (2002).
[5]. Kamiyama S, "Magneto-hydrodynamic journal bearing (report-I)", Journal of lubrication Technology, 91, pp.380-386 (1969).

Defect free thin walled Investment casting process is a challenge even in modern days because it is a surface dominated system, i.e., surface-volume ratio is much more than regular cast products. Gating system is one of the important key to control the surface quality, uniformity of section of thin walled castings. Not only the position of gate, distance from gate, type of gate are control the casting quality but also the surface geometry of mold plays important role.

Key words: Investment casting, Gating system, Surface quality, Uniformity of section.

[1]. Barnali Mandal and Prasanta Kumar Datta, Hot mold casting process of ancient East India and Bangladesh, China Foundry, 7.2 May (2010), 171-177.
[2]. Doru Michael Stefanescu, Science and Engineering of Casting Solidification, Springer, New York, 2002, p-65.
[3]. Soumyajit Roy, Utpal Kumar Maity, Prof. Akshay Kumar Pramanick, Prof. Prasanta Kumar Datta, Kinetics of Liquid Metal Flow in Gating Design of Investment Casting Production, SLÉVÁRENSTVÍ (Association of Foundries of the Czech Republic), Vol.: 2017.5–6, pp: 149-154.
[4]. Frank M. White, Fluid Mechanics, WCB McGraw-Hill Publication, New Delhi, 1998, p-185.
[5]. Soumyajit Roy, Barun Kumar Das, Prasanta Kumar Datta,2016, Application of Fluid Flow Mechanics in Gating Calculation of Investment Casting Production, International Journal of Mechanical and Production Engineering (IJMPE) (Volume- 4, Issue-5), pp- 73-79

The Modified Cooper-Harper (MCH) and Subjective-Workload Assessment Technique (SWAT) method is a measurement method to calculate the mental workload experienced by a person. Both of these methods use a subjective approach in determining the outcome of a mental workload. Measurement analysis on the Modified Cooper-Harper (MCH) method is to provide an assessment of the work carried out by respondents based on the decision tree then translated into the questionnaire. The results of the questionnaire were used to infer the mental workload experienced by respondents. While the measurement analysis in the Subjective-workload assessment technique (SWAT) method is to sort 27 SWAT cards where the sorting results are used as a basis for evaluating the mental workload felt by the respondent. The respondents selected in this study were nurses who worked in Malang City hospitals.

Key words: Modified Cooper Harper (MCH), Subjective Workload Assessment Technique (SWAT) and Mental Workload.

[1]. Baldauf, D., Burgard, E., & Wittmann, M. (2009). Time Perception as a Workload Measure in Simulated Car Driving. Applied Ergonomics, 40(5), 929–935, Departement Of Psychology.
[2]. Bevilacqua. (2013) Visual Management Implementation And Evaluation Through Mental Workload, Universita Politecnica Delle Marche, Italy
[3]. Bowers, Drew M. (2014) Effect Of Subjective Workload Measurement During A Workload Transition On Task Performance, University Of Dayton, Ohio.
[4]. Cain, B. (2004). A Review of the Mental Workload Literature : Defence Research and Development, Canada Toronto.
[5]. Colle, Hebert A. (2016). Context Effects in Subjective Mental Workload Ratings, (May). Air Force Research Laboratory, Ohio.

This paper proposes a novel approach which deals with a security based system conceived with a notion to provide a smart door lock system to replace the conventional lock and key module and is also aimed at protecting our residence from burglaries when we are away from our home. The way of using the door lock has been changed over last few years, there has been a lot of modification with the use of technologies like RFID, but it still doesn‟t give a solution to the problems associated with portable objects like key, cards etc. A total of 4 modules have been implemented on an electronic door lock with a gear motor within it which facilitates themechanical system of lock and unlock. An Arduino MEGA microcontroller has been deployed to control the overall system. The 4 modules being fingerprint module which uses the fingerprint sensor, messaging module involving GSM, Passcode module using keypad and Voice Controller module which involves the usage of Bluetooth module. A 3D house model has been used to implement and demonstrate the proposed system.

Key words: Door lock system,Keypad, Fingerprint sensor,GSM,Voice Controlled System

[1]. Jayant Dabhade, Amirush Javare, Tushar Ghayal, Ankur Shelar, Ankita Gupta, "Smart Door Lock System: Improving Home Security using Bluetooth Technology", International Journal of Computer Applications(0975-8887) Volume 160 - No 8, February
[2]. Adnan Ibrahim, Afhal Paravath, Aswin P. K., "Shijin Mohammed Iqbal and Shaeez Usman Abdulla, "GSM Based Digital DoorLock Security System", 2015 IEEE International Conference on Power, Instrumentation, Control and Computing (PICC),978-1-4673-80720/15/31.00 2015 IEEE.
[3]. Yong Tae Park, Pranesh Sthapit, Jae-Young Pyun, "Smart Digital Door Lock for the Home Automation", Department of Information and Communication Engineering, Chosun University Gwangju, South Korea,9781-4244-4547-9/09/26.00 2009 IEEE.
[4]. N.H, Ismail, Zarina Tukiran,N.N., Shamsuddin, E.I.S saadon, "Androidbased Home Door Locl(s Application via Bluetooth for Disabled People", International Conference on Control System, Computing and Engineering, Penang, Malaysia.978-1-479956869/14/31.00 2014 IEEE.

In this paper we highlight some special properties of quantum entanglement and quantum cryptography which is useful for recent security when data is transmitting over the network. In classical cryptography, bits are used to encode information whereas quantum cryptography uses photon or quantum particles (qubits) to encode the information. The emphasis of this paper is to rise of QuantumCryptography and specially lighting on Quantum key distribution (QKD) techniques which ensure the unbreakable security in near future.

Key words: Quantum Entanglement, Quantum Cryptography, Qubits, QKD.

[1]. N Garg, P Yadav,Comparison of AsymmetricAlgorithms in Cryptography,IJCSMC, Vol 3, Issue. 4, page 1190 – 1196, 2014.
[2]. WDiffie, M Hellman,New directions in cryptography IEEE Trans. Inform. Theory, Vol 22, No 2,Page 644-654, 1976.
[3]. R L Rivest, A Shamir, LAdleman"A method for obtaining digital signatures and public-key cryptosystems" Communications of the ACM, Vol 21, No 2, Page120–126, 1978.
[4]. P W Shor Polynomial-time algorithms for prime factorization and discrete logarithms on a quantum computer,SIAM journal on computing, Vol 26, No 5, Page 1484–1509, 1997.
[5]. E Schrödinger, Discussion of probability relations between separated systems,Mathematical Proceedings of the Cambridge Philosophical Society,Vol 31, No 4, Page 555-563. 1935.

Electrical energy covers the highest level in energy pecking order. It finds numerous applications in homes, industry, agriculture, defense, transportation etc. In order to ensure that Nigerians can enjoy a reliable energy system at a reasonable cost. Several thermal power generating stations that contribute to the nations grid which includes Afam, Egbin, Delta, Sapele thermal power station, Ijora and Oji river thermal power station. This study engages method that applies the ultra-careful study of power generating stations and their various environments and utilizes the application of questionnaires, interviews & investigations, and personal observations in data gathering. Analyses of the various data collected were in tabular exhibitions, mathematical models, pictorial charts.............

Key words: Electrical Energy, Environment, Thermal Station, Energy Consumption, Influence

[1]. Abrahamision, D.E. and Pogue, R.E. ( 2009), "The environmental impacts of a growing nuclear power industry", Minnesota Academy of Science Press, New York
[2]. Ada, U.U., (2012), "NEPA Management Development in Nigeria", Caxtom Press (Invest. African) Limited, Ibadan
[3]. Ayodele A. I., (2012), "Electricity development in Nigeria: Pattern of Nigeria "s Electric Energy Use", pp 30-32, Universal Press, Ibadan.
[4]. Ben Caven, (2016), "Impact Of Climatic Change On The Performance Of The Nigerian Power Supply System", PHCN Review, Volume VI, pp 10-11
[5]. David M. Lipscomb and Arthur C. Tayler, (2016), "Noise Control Handbook of Principles and Practices", Longman publishers, New York

Defects on building especially in structural parts are caused by faulty designs or executions rather than the use of faulty materials and this has posed a great concern to the government, building professionals and other stakeholders in recent times and considering the increasing number of cases of structural defects in building and high rate of building collapse. This study investigates causes and impact of structural defects in residential buildings in Ado-Ekiti Metropolis. Stratified sampling technique was used for selecting the target populations. Population of the study includes the occupants, clients, contractors, Architects and Quantity Surveyors that involved in construction, management and usage of the residential buildings. Useful information and data required to achieve the set objectives were gathered through structured questionnaires. A total of 120 questionnaires (100 for Residents and 20 for Professionals) were distributed..........

Key words: Buildings, construction, defects, remedies, residential.

[1]. Baiden, B. K. and Tuuli, M. M. (2004). "Impact of Quality Control Practice in Sandcrete Blocks." Journal of Architectural Engineering, 10 (2), 2004; 53 - 60.
[2]. Barry, R. (2005). The Construction of Building Vol. I A and IV, fourth edition, London: Cramada Publishing Limited.
[3]. Code of British Standards (BS 3811: 1974), Maintenance. California Civil Code 896, Construction Defect Law.
[4]. David, H. (1988). Building Defect Inspection and Report. www.building defects.com.au
[5]. Gillham, B. (2000). Developing a questionnaire. Real World Research London: Continuum. pp. 124

The world is moving fast and getting faster every day, with this changing world one needs to be dynamic and fast in every aspect of life. In this scenario vehicles are the only thing which helps people in a very faithful manner, so this also needs to be available easily and should be allowed in your country to ride it freely and legally. It is also important to keep a check on them. In this paper, we have proposed a system which has been designed to cope up with the need of the hour. The system overcomes the demerits of the existing system like a lengthy registration process, excess documents to be carried, high chances of frauds, less information contained in smart cards. In this system we have planned an online vehicle management system that keeps track of a vehicle right from the moment it is manufacture till it gets demolished.

Key words: Vehicle, Vehicle tracking, Paperless, Monitoring, Vehicle Pollution, Vehicle Insurance.

[1]. Avinash Shinde, Rounak Sathe, Prakash Sutar, Prof.R.Sadakale, "Automatic E-Challan Generation For Traffic Violation", International Journal of Advance Engineering and Research Development, Volume 4, Issue 8, August-2017.
[2]. Paal Brevik Wangsness, Stef Proost, Kenneth Lovold Rodseth, "Vehicle choices and urban transport externalities. Are Norwegian policy makers getting it right?", Norwegian University of Life Sciences School of Economics and Business, Working Papers No. 2/2018, ISSN: 2464-1561.
[3]. S. L. Ting, L. X. Wang, W. H. Ip, "A study of RFID adoption for vehicle tracking in a container terminal", Journal of Industrial Engineering and Management, JIEM, 2012- 5(1):22-52 – Online ISSN: 2013-0953 – Print ISSN: 2013-8423.
[4]. Ramagiri Rushikesh, Chandra Mohan Reddy Sivappagari, "Development of IoT based Vehicular Pollution Monitoring System", International Conference on Green Computing and Internet of Things (ICGCIoT), 2015, DOI: 10.1109/ICGCIoT.2015.7380568.