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Review Paper

The Important Aspects of Learning and Teaching in Experimental Sciences

The teaching and learning of experimental sciences, which primarily include the physical sciences, chemical sciences and the broad spectrum of biological sciences. Teaching and learning in the experimental sciences have to take account of a number of issues.  By 2020, experimental science subjects are increasingly seen as difficult and unfashionable alongside the of new disciplines. Accordingly, the rise in student numbers has not been matched by a proportionate rise of numbers within experimental science disciplines and the proportion of students studying the basic science UG and PG courses is decreasing. This has serious implications for curriculum design, for approaches to learning and teaching and for systems, for student support and retention. The changing science from a level of curriculum and the move towards the examination. There are also QAA Subject Benchmarking statements (Quality Assurance Agency), and institutions are increasingly introducing module ‘norms’ for hours of lectures, laboratory classes, and tutorials, and may also define the extent and type of assessments. The Cell for Excellence in Teaching and Learning (CETLs) help the students in writing the practical report or structure or essay. The ‘Differentiated learning’ is, an emerging issue and may be taken as the intention to differentiate learning opportunities and outcomes, differentiation by ability, focus on the ablest. This is a newly emerging issue in higher education.

Published by: Dr. M. N Kumaraswamy, R. K Raju, T. G Halesh

Author: Dr. M. N Kumaraswamy

Paper ID: V4I1-1344

Paper Status: published

Published: February 26, 2018

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Research Paper

Knowledge Practice Gaps About Needle Stick Injuries among Health Care Workers at Omdurman Teaching Hospital –Sudan 2016

Needlestick injury remains the potential source for transmission of blood born infection and one of the main safety concerns which need to be addressed for the prevention of various blood-borne diseases among HCWs. The aim of our study was to assess the knowledge and practice gaps about Needle Stick Injuries (NSIs) and their associated factors among Health Care Workers’ (HCWs) at Omdurman teaching hospital. Methods: A cross-sectional study was conducted in may–June2016. (92) Respondents enrolled in the study (medical officer, lab technicians and nurses selected randomly. Results: Overall the knowledge about transmission of HBV HCV and HIV was good, mean knowledge 76.1%, in general, their practice regard news was poor means score practice 88.9%.there is significant relation between knowledge and socio-demographic data p .000 and insignificant between socio-demographic and their practice p.612 From the study concluded that NSSIs are common risk factors for infection among health care workers due to their poor practice, although their knowledge is good. Lastly recommended that Hospitals and healthcare facilities should be provided all preventive skills and instruments against infections. Record keeping and reporting of sharp injuries should be considered.

Published by: Manal Bilal Mohamed, Madeha Ali Mahmoud

Author: Manal Bilal Mohamed

Paper ID: V4I1-1328

Paper Status: published

Published: February 23, 2018

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Research Paper

Strong Orange–Red Photoluminescence from CaTiO3:Sm3+ Nano-phosphor

The crystal structure and surface morphology of the CaTiO3:Sm3+ nanomaterials prepared by combustion synthesis were determined by XRD Rigaku Ultima IV diffractometer using Cu Kα radiation (1.54184 Å) depicting orthorhombic phase of CaTiO3:Sm3+ with space group Pbnm & scanning electron microscopy (SEM) respectively. The phosphor particles size was found about 10-15nm. Upon excitation using 407nm light, the PL emission spectra obtained due to 4f transition of Sm3+ from 4G5/2 → 6HJ(J=5/2, 7/2 ,9/2 ,11/2) consists of five peaks located at 564nm, 601-611nm, 647nm and 711 nm respectively. Among these Peaks, the peak located at 564 nm (4G5/2→6H5/2) was purely due to magnetic-dipole transition (MD), and at 648 nm (4G5/2→6H9/2) was purely due to electric dipole transition (ED). But the main peak located at 601 nm (4G5/2→6H7/2) was due to a partly magnetic and partly a force dielectric-dipole transition showing bright orange-red emission thus prove CaTiO3:Sm3+ phosphor a strong promising orange-red phosphor for display application.

Published by: Dr. Subhash Chand

Author: Dr. Subhash Chand

Paper ID: V4I1-1416

Paper Status: published

Published: February 23, 2018

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Research Paper

Remote Control Effect of Li+, Na+, K+ Ions on the Photoluminescence Intensity of ZnTiO3:Eu3+ Nanomaterial

Alkali metal ions (Li+, Na+ & K+) co-doped ZnTiO3:Eu3+ red emitting nano-phosphors series were prepared by combustion synthesis method. The crystal structure & surface morphology of the phosphors was analyzed by using X-ray diffraction (XRD) and Scanning electron microscopy (SEM) technique. The XRD results show the hexagonal phase of ZnTiO3 with space group R-3:R. From the SEM results, it was observed that the phosphors had very small particle size ranging from 10-30nm and the average size of the ZnTiO3 crystal is 30±5nm. Photoluminescence study showed that under the excitation of UV (393 nm) or blue light (464 nm) , the obtained products emitted characteristic red emissions of Eu3+ at 615 nm for 5D0 → 7F2 transition which proved that activator Eu3+ ion had successfully entered the host lattice of ZnTiO3. The red emission intensity was significantly enhanced by introducing alkali metal ions as co-dopants. A remarkable increase in the photoluminescence intensity is found by co-doping with Li+ ions in ZnTiO3:Eu3+ lattices due to the reduction of environment symmetry around Eu3+ ions which strengthen the electric dipole transition.

Published by: Dr. Subhash Chand, Devender Singh

Author: Dr. Subhash Chand

Paper ID: V4I1-1415

Paper Status: published

Published: February 23, 2018

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Case Study

An Experiment on Circuit Breaker and Over Current Relay

Circuit breaker and relays are being utilized for secure, reliable and convenient operation of power system. The over current protection relay is widely used in the power system for protection of short circuit or wrong setting of system to the pre-specified value. Erroneous setting of over current relay in the power system it is difficult to send the trip signal. So it is connected carefully in the power system. Therefore it is important to accredit the setting of power protection equipment. The paper represents the modeling of over current relay in MATLAB/SIMULINK. The over current relay has the types of instantaneous, definite time, inverse time and inverse definite minimum time (IDMT) according to the time characteristics. This paper most important feature is the comparison of times between ideal & calculated results of over current relay. To make the protection system of transmission line by the circuit breaker and over current relay in MATLAB/SIMULINK. To proper transmit the electric power from sending end to receiving end without suffering from any difficulty and dangerous condition. Implementation of over current relay and testing of circuit breaker & over current relay are using in MATLAB software. And show the result of operating & fault current and also trip signal time of the over current .

Published by: Gaurang Pandit, Yash Kava

Author: Gaurang Pandit

Paper ID: V4I1-1411

Paper Status: published

Published: February 23, 2018

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Review Paper

Live Video Colour Recognition and Object Tracking using MATLAB

In this paper, we discuss the use of live video streaming to detect RGB colors and in the process, try to track the movements of different objects in a stationary background. This color dependent tracking is achieved through MATLAB’S image processing toolbox. A live video is segmented and each video frame is used to detect red, blue or green color and keep track of the object in subsequent frames using the average shift observed in the frames. The applications of this system include robotics, color related segregation or detection, analysis and surveillance tech. devices, and security systems.

Published by: Pranay Singla, Vibhor Sharma, Vaibhav Aggarwal

Author: Pranay Singla

Paper ID: V4I1-1400

Paper Status: published

Published: February 23, 2018

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