Kunal Mehra, Ajay Kumar – March 2019 – Page No.: 01-06
In different processes ranging from conversion, utilization & recovery of thermal energy in various industrial, commercial & domestic applications heat exchangers are used. Economical design of heat exchangers, which can help to utilize energy, use economical material and help in reducing cost should be achieved by increase in the performance of Heat exchanger. Use of Heat transfer enhancement techniques lead to increase in heat transfer coefficient but at the cost of increase in pressure drop. Therefore, while designing a heat exchanger, using any of these techniques, analysis of heat transfer rate & pressure drop needs to be done. To achieve high heat transfer rate in an existing or new heat exchanger several techniques have been proposed in recent years. This work presents the study of heat transfer enhancement of a circular heat pipe using nano particles produced as a result of wire electric discharge machining, collectively called as the colloidal solution of nanoparticles. A heat pipe is a simple heat transfer device that can transport large quantities of heat with a very small difference in temperature between the hot ends to the other end. In this case study, the concept of the evaporation of the working fluid inside the heat pipe is used to compare the heat carrying capacity of two heat pipes. The objective of this study is to compare the efficiency between the primary heat pipe with distilled water as the working fluid and the secondary heat pipe with colloidal Nano Fluid, produced as a result from wire electric discharge machining as the working medium. The heat pipe is divided into 2-sample specimen. First specimen of heat pipe using distilled water while the other one used colloidal Nano Fluid. These two heat pipes are built without the mesh wick and are dealing with inclination of angle to see the performance of the heat pipe. Both the heat pipes were built with the total length of 600 mm length and 16 mm diameter using copper as the pipe material. Gravity pumping was used with the inclination angle to pump back the working fluid to the evaporator section. The heat pipe was positioned at different angles of 0º, 45° and 90° with the horizontal. To achieve the objective of this study, both pipes were studied experimental to find the most efficiency between the primary heat pipe and the secondary heat pipe. The important parameter involves in the case study are the variation of Thermal Resistance and the Overall Heat Transfer Coefficient with the varying heat inputs to the heat pipes. After performing the experiments, the objective of this case study is achieved.
- Page(s): 01-06
- Date of Publication: 14 March 2019
- Kunal Mehra
M.Tech Scholar, Laxmi Devi Institute of Engineering & Technology, Alwar -301028, India - Ajay Kumar
Mechanical Engineering Department, Laxmi Devi Institute of Engineering & Technology, Alwar -301028, India
References
[1]. Peterson, G.P., 1994, An Introduction to Heat Pipes; Modeling, Testing and Applications, John Wiley & Sons.
[2]. Dunn, P.D., and Reay, D.A., 1986, Heat Pipes, Pergamon.
[3]. Nemec, P. Čaja, A. Heat transport nitrification of heat pipe. ActaMetallurgicaSlovaca Vol.15. No.1. TU Košice, 2009.
[4]. Swanson L. W.: Heat pipe, Heat and Mass Transfer, Mechanical Engineering Handbook, Ed. Frank Kreith Boca Raton: CRC Press LLC, 1999.
[5]. Holman, J.P, Heat Transfer, 5th Ed, McGraw-Hill Inc. 1981.
Kunal Mehra, Ajay Kumar “Analysis of Thermal Performance of a Characteristics Heat Pipe as an Efficient Heat Transfer Device with Colloidal Nanofluid” International Journal of Research and Innovation in Applied Science -IJRIAS vol.4 issue 3 March 2019, pp.01-06 URL: https://www.rsisinternational.org/journals/ijrias/DigitalLibrary/Vol.4&Issue3/01-06.pdf
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Abari, M. Terseer; Dr.( Mrs) Gimba, W. Rukayat; Dr. Hassan, A. Ahmed; Dr. Jiya, M; Dr.(Mrs) Chado, Amina; Dr. (Mrs.) Gana, S. Celina; Dr. Koroka, M.U.S – March 2019 Page No.: 07-10
The research was concerned with the effects of Geogebra Instructional Package on secondary school students achievement in Geometry in Makurdi Metropolis of Benue State, Nigeria. Two research questions were asked and answered while two hypotheses were formulated and tested at 0.05 level of significance. The design of the study was quasi-experimental design of pretest-post test non equivalent control group. The sample of the study was 205 students. The experimental group was taught using Geogebra Instructional package while the control group was taught using the expository method. The data collected at the end of the research was analysed using descriptive statistics of mean and standard deviation to answer research questions while the hypotheses were tested using analysis of covariance. The result of the study revealed that students taught geometry using Geogebra Instructional Package achieved higher mean scores than those taught using Expository method. The result also revealed no significant difference in the mean achievement scores of male and female students taught geometry using Geogebra Instructional Package.
- Page(s): 07-10
- Date of Publication: 15 March 2019
- Abari, M. Terseer
Federal University of Technology, Minna, Nigeria - Dr.( Mrs) Gimba, W. Rukayat
Federal University of Technology, Minna, Nigeria - Dr. Hassan, A. Ahmed
Federal University of Technology, Minna, Nigeria - Dr. Jiya, M
Federal University of Technology, Minna, Nigeria - Dr.(Mrs) Chado, Amina
Federal University of Technology, Minna, Nigeria - Dr. (Mrs.) Gana, S. Celina
Federal University of Technology, Minna, Nigeria - Dr. Koroka, M.U.S.
Federal University of Technology, Minna, Nigeria
References
[1]. Gambari, A. I.I, Falode, C. O. & Adegbenro, D. A.(2014). The effectiveness of computer animation and geometry instructional model on mathematics achievement and retention on Junior Secondary School Students in Minna, Nigeria.European Journal of Science and Mathematics Education, 2(2), 127-146.
[2]. Hohenwarter, M., Hohenwarter, J., Kreis, Y., and Lavicza, Z. (2008). Teaching and learning calculus with free dynamic mathematics software GeoGebra. Paper presented at the 11th International Congress on Mathematical Education. Monterrey, Nuevo Leon, Mexico.
[3]. Hohenwarter, J., Hohenwarter, M. and Lavicza, Z. (2010). Evaluating difficulty levels of dynamic geometry software tools to enhance teachers’ professional development. International Journal for Technology in Mathematics Education, 17(3), 127-134.
[4]. Keşan, C. and Çalişkan, S.(2013). The effect of learning geometry topics of 7th grade in primary Education with dynamic geometer’s sketchpad geometry Software to success and retention. The Turkish Online Journal of Educational Technology. 12(1);131-138.
[5]. Royati, A. S., Ahmad, F. M. & Rohani, A.T. (2010).The Effects of Audio-visual on Mathematics Achievement: Enlightening Coordinate Geometry Learning.International Conference on Mathematics Education Research 2010 (ICMER 2010).Institute for Mathematical Research, Faculty of Educational Studies, University Putra Malaysia.
[6]. Russel, D. (2014). What is Geometry? Retrieved from www.math.about.com/od/geometry/a/why geo.htm on 19th November 2016.
[7]. Zengin, Y & Kutluca, T. (2012). The effect of dynamic Mathematics Software geogebra on student achievement in teaching of trigonometry. Procedia.-Social and Behavioral Sciences. 31; 183-187.
Abari, M. Terseer; Dr.( Mrs) Gimba, W. Rukayat; Dr. Hassan, A. Ahmed; Dr. Jiya, M; Dr.(Mrs) Chado, Amina; Dr. (Mrs.) Gana, S. Celina; Dr. Koroka, M.U.S., “Effects of Geogebra Instructional Package on Secondary School Students Achievement in Geometry in Makurdi Metropolis of Benue State” International Journal of Research and Innovation in Applied Science -IJRIAS vol.4 issue 3 March 2019, pp.07-10 URL: https://www.rsisinternational.org/journals/ijrias/DigitalLibrary/Vol.4&Issue3/07-10.pdf
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Ogwuegbu, H.O, Mbanaso, A.U, Opara-Nadi, N., Nwokorie, C.C. and Irogbeyi, L.A. – March 2019 Page No.: 11-16
Although indwelling urinary catheterization is a medical intervention with well-defined risks. Despite these known disadvantages, urethral urinary catheterizations are frequently used without an appropriate indication such as acute urinary retention. The prevalence of Bacterial Isolates From Prostatitis patients using indwelling Urinary Catheters was carried out in Umuahia, Abia State using culture technique. 800 patients were examined for prostate specific antigens (PSA) using quantitative and qualitative tests, culture and antibiotic susceptibility tests were also done. Out of 800 patients tested for PSA test in Umuahia was 416 (52.0%) and 433 (54.1%) for quantitative and qualitative tests respectively. in Umuahia as 800 urine samples were cultured with 280(50.9%) isolates from uncatheterized patients and 210(84.0%) isolates from catheterized patient. The bacterial isolates from catheterized and uncatheterized patients were Escherichia coli 149 (30.4%), K. pneumoniae 84 (17.1%), S. aureus 105 (21.40%), S. faecalis 61 (12.4%), P. mirabilis 51 (10.4%) and P.aeruginosa 40 (8.7%). Higher bacterial loads were observed in the catheterized patient’s urine than in the uncatheterized patient’s urine. Ceftriaxone, Streptomycin, and Augumentine were the drugs of choice in the sensitivity tests while high antimicrobial resistant rates were observed with Ampiclox, Septrin and Amoxil. Generally, high prevalence rate of PSA and bacterial pathogens were reported in patients of higher age (50 and above years). Increase in age, low socio-economic status and poor environment dwellers were found as demographic risk in aggravating the chance of getting prostatitis in the research areas. This calls for awareness, diagnosis and proper medical checks for men of 50 years and above. This medical check will prevent the chance of developing prostatitis and other complications that may lead to infertility and inability to urinate.
- Page(s): 11-16
- Date of Publication: 18 March 2019
- Ogwuegbu, H.O
Department of Microbiology, Abia State University Uturu, Nigeria - Mbanaso, A.U
Department of Medicine, Abia State University Uturu, Nigeria - , Opara-Nadi, N.
Department of Microbiology, Abia State University Uturu, Nigeria - Nwokorie, C.C.
Department of Microbiology, Abia State University Uturu, Nigeria - Irogbeyi, L.A.
Department of Pharmacology, Abia State University Uturu, Nigeria
References
[1]. Cappuccino, J.G. & Sherman, N. (2014). Microbiology: A Laboratory Manual 10th Edition, USA. Pearson Education.
[2]. Cheng-Ching, W.U., Hung, Y.U., Chao-Ping, W.S. & Li-Fen L. U. (2015). Evaluation of a rapid quantitative determination method of PSA concentration with gold immunochromagraphic strips. Journal of Bio-Medical Central., 3:55-109.
[3]. Kalpana, R. (2016). Microorganisms and male infertility: possible pathophysiological mechanisms. Journal of Microbiology and Biotechnology Research., 20:41-52.
[4]. Kolawole, A.S., Kolawele, O.M., Kandaki-Oluremi, Y.T., Babantunde, S.K. & Darowade, K.A. (2009). Urinary tract infections (UTI) among patients attending Dalhatu Araf Specialist Hospital, Lafia, Nasarawa State, Nigeria. International Journal of Medicine and Medical Sciences., 1(5): 163-167.
[5]. Ku, J.H. (2005). Epidemiology risk factors for chronic prostatitis. International journal of Andrology., 28: 317-327.
[6]. Nickel, J.C. (2003)a. Classification and diagnosis of prostatitis: a gold standard? Journal of Andrologia., 35(3): 160-167.
[7]. Nickel, J.C. (2003)b. Clinical evaluation of the patient presenting with prostatitis. European Journal of Urology., 2(2): 11014.
[8]. Nicole, L.F. (2008). The prevention of Hospital acquired urinary tract infection. Clinical Infectious Diseases., 15(46): 251-253.
[9]. Ogwuegbu, H.O., Nwaugo, V.O., Uranta, D.M., Nwokorie, C.C. and Alaedu, A.O. (2018). Microorganisms Associated with Prostatitis Using indwelling Urinary catheters in Okigwe Imo State, Nigeria. International Journal of Microbiology and Biotechnology., 3(3): 83-88.
[10]. Sharp, V.J., Takacs, E.B., & Powell, C.R. (2010). Prostatitis: diagnosis and treatment. Journal of American Physician., 82: 397-406.
[11]. Stam, W.E. (2000). Catheter–associated urinary tract infections: epidemiology, pathogenesis and prevention. American Journal of Medicine., 91:1328-1334.
[12]. Stamm W.E. & Hooton T.M. (2003). Management of UTI in adult. England Journal of medicines., 329: 1328-1334
[13]. Tain, P.J., Parada P. & Smith L.G. (2000). Overuse of the indwelling urinary tract catheter in hospitalized medical patients. Journal of international medicine., 155 (13): 1425-1429.
[14]. Vasudevan, R. (2014). Urinary tract infection. An overview of the infection and associated risk factors. Journal of Microbiology., (2): 10-15.
[15]. Warren, W. (2005). Catheter-associated urinary tract infection. International Journal of Antimicrobial Agents., 17:299-303.
Ogwuegbu, H.O, Mbanaso, A.U, Opara-Nadi, N., Nwokorie, C.C. and Irogbeyi, L.A. “The Prevalence of Bacterial Isolates from Prostatitis Patients Using Indwelling Urinary Catheters in Healing Cross Hospital Umuahia, Abia State, Nigeria” International Journal of Research and Innovation in Applied Science -IJRIAS vol.4 issue 3 March 2019, pp.11-16 URL: https://www.rsisinternational.org/journals/ijrias/DigitalLibrary/Vol.4&Issue3/11-16.pdf
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Laveena Yadav, Hitesh Khandelwal – March 2019 Page No.: 17-18
In this paper, I analysis theoretically impact of Outsourcing on employment. I do it by viewing the literature reviews about the subject, in order to answer “what is the impact of outsourcing on employment”. Outsourcing found to reduce employment, but the impact varies according to measurement criteria. Outsourcing widens the gap between skilled and unskilled labor.
- Page(s): 17-18
- Date of Publication: 18 March 2019
- Laveena Yadav
Assistant Professor, Department of Management Studies, LIET, Alwar, Rajasthan, India - Hitesh Khandelwal
Assistant Professor, Department of Mechanical Engineering, LIET, Alwar, Rajasthan, India
References
[1]. Douglas Brown and Scott Wilson, “The Black Book of Outsourcing: How to Manage the Changes, Challenges, and Opportunities”, ISBN 9780471718895, Wiley, 2005.
[2]. Ronan McIvor, “The Outsourcing Process: Strategies for Evaluation and Management”, ISBN 9781139444583, Cambridge University Press, 2005.
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[5]. C. Fill and E. Visser, “The outsourcing dilemma: a composite approach to the make or buy decision”, Management Decision, Vol. 38 No. 1, 2000.
[6]. R. McIvor, “A practical framework for understanding the outsourcing process”, Supply Chain Management: An International Journal, Vol. 5 Issue: 1, pp. 22-36, 2000.
[7]. Z. Zhu, K. Hsu and J. Lillie, “Outsourcing – a strategic move: the process and the ingredients for success”, Management Decision, Vol. 39 Issue: 5, pp. 373-378, 2001.
[8]. M. Borman, “Identifying the factors motivating and shaping co-sourcing in the financial services sector”, Journal of Information Technology Management, vol. 17(3), pp. 12-25, 2006.
Laveena Yadav, Hitesh Khandelwal “Impact of Outsourcing Jobs on Local Economics” International Journal of Research and Innovation in Applied Science -IJRIAS vol.4 issue 3 March 2019, pp.17-18 URL: https://www.rsisinternational.org/journals/ijrias/DigitalLibrary/Vol.4&Issue3/17-18.pdf
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Tonye K. Jack – March 2019 Page No.: 19-27
Natarajan suggested and successfully applied the regressed model equation form, LnKP=aLn(10)+bLnT+c/T with a reported deviation of less than 5-percent from the JANAF Thermo-chemical Tables data, to predict the equilibrium constants in terms of pressure and mole concentrations of certain chemical species in chemical reactions, presented in tabular forms, for units in, atm, and mol/cm3, respectively. The attraction of the Natarajan model is the reduced uncertainties, and flexibility of computationally handling and presenting, in an easily analysable way, scaled thermo-chemical dataset, in possible selectivity control applications for real-time transaction response smart chemical sensors (RTTR-SCS). However, some important probable species in high temperature range, 1000 -to- 6000 K, combustion reactions such as, HCO, HO2, HNCO, NCN, NCO, NNH, and OH, were not considered in the Natarajan Tables. This contribution is an extension, and addition to the Natarajan Tables based on regressed data obtained from JANAF 1971 and 1998 Tables. There is indication from analysis, that at JANAF Tables, Log KP, breakaway negative -to- positive sign (or vice versa) transition points, the prediction uncertainties are higher, which hints possibly at temperature validity and avoidance limits in applications.
- Page(s): 19-27
- Date of Publication: 19 March 2019
- Tonye K. Jack
Seltrolene Consulting, Port Harcourt, 50004, Rivers State, Nigeria
References
[1]. Stull, D. R., and Prophet, H. (1971). JANAF Thermochemical Tables. US National Standard Reference Data System, National Bureau of Standard, NSRDS-NBS 37.
[2]. Benson, S. W., Golden, D. M., Lawrence, R. W., Shaw, R., and Woolfolk, R. W., (August 1975). Estimating the Kinetics of Combustion including Reactions involving Oxides of Nitrogen and Sulfur. US Environmental Protection Agency (EPA), EPA-600/2-75-019, 35-36.
[3]. Pitsch, H. (2014). Thermodynamics, Flame Temperature and Equilibrium. CEFRC Combustion Summer School, Institut für Technische Verbrennung, RWTH Aachen University. Available Online: https://www.princeton.edu/cefrc/files/2014/LectureNotes/Pitsch/Lecture2_Thermodynamics_2014.pdf. Last Accessed: December 6, 2018.
[4]. Peter, N., (2010). Combustion Theory. CEFRC Combustion Summer School, RWTH Aachen University. Available: https://www.itv.rwth-aachen.de/fileadmin/Downloads/Summerschools/Peters_summerschool_reference.pdf. Last Accessed: December 6, 2018.
[5]. Flagan, R. C., (1988). Fundamentals of Air Pollution Engineering, Prentice Hall.
[6]. Wilson, Wm. E., Jr., (1972). A Critical Review of the Gas-Phase Reaction Kinetics of the Hydroxyl Radical. Journal of Phy. Chem. Ref Data, 1, 2, 535-554.
[7]. Natarajan, K., (2015). Computing Equilibrium Constants of Chemical Reactions – A New Approach. International Journal of ChemTech Research, 7, 5, 2361-2367.
[8]. McKetta, J. J., Jr., (1999). Z-Factor (Gas Compressibility)-Errors to Zone Refining. Encyclopedia of Chemical Processing and Design, Vol. 68.
[9]. https://en.wikipedia.org/w/index.php?title=Equilibrium_constant&oldid=837511084. Last Accessed: May 8, 2018.
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[12]. Chase, M. W., Jr., (ed.) (1998). NIST-JANAF Thermochemical Tables. US National Standard Reference Data System
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[16]. McBride, B. J., Gordon, S., and Reno, M. A. (February 2001). Thermodynamic Data of Fifty Reference Elements. NASA Technical Paper 3287/REV1. Available: http://www.grc.nasa.gov/
[17]. Bortner, M. H., (May 1969). A Review of Rate Constants of Selected Reactions of Interest in Re-Entry Flow Fields in the Atmosphere. US National Bureau of Standards (NBS) Technical Note 484, 1-65.
Tonye K. Jack “On the New Approach to Calculating Equilibrium Constants in Chemical Reactions” International Journal of Research and Innovation in Applied Science -IJRIAS vol.4 issue 3 March 2019, pp.19-27 URL: https://www.rsisinternational.org/journals/ijrias/DigitalLibrary/Vol.4&Issue3/19-27.pdf
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Md. Abu Bakar Siddiquee, Md. Zahid Hasan, Md. Kamruzzaman – March 2019 – Page No.: 28-32
Color strength is dominating fact which determine the quality of dyed fabrics and it depends on different dyeing parameters like as temperature, salt, alkali, dye %. Effect of dyeing process parameters on color strength of rayon polyester blended fabric was studied in this research. By varying temperature, pH, dispersing agent, salt and soda the color strength of dyed fabric were investigated. Solid dyeing effect was developed by dyeing both part of blended fabric. Dyeing of polyester part was recommended with temperature 130°C depending on color strength value. Highest color strength value was observed for dyeing with reactive dyes at temperature 70-80°C using salt 60-80 g/l and soda 15-25 g/l. Different types of soda and alkali were used for dyeing of rayon part and measure their effect on color strength.
- Page(s): 28-32
- Date of Publication: 29 March 2019
- Md. Abu Bakar Siddiquee
Department of Textile Engineering, Mawlana Bhashani Science and Technology University, Tangail, Bangladesh - Md. Zahid Hasan
Department of Knitwear Manufacturing & Technology, BGMEA University of Fashion & Technology, Dhaka, Bangladesh - Md. Kamruzzaman
Department of Textile Engineering, Mawlana Bhashani Science and Technology University, Tangail, Bangladesh
References
[1]. Broadbent, A. D. (2001). Basic principles of textile coloration.
[2]. Shahid, M. A., Hossain, M. I., Hossain, D., & Ali, A. (2016). Effect of different dyeing parameters on color strength & fastness properties of cotton-elastane (ce) and lyocell-elastane (le) knit fabric. International Journal of Textile Science, 5(1), 1-7.
[3]. Ahmed, N. S. (2005). The use of sodium edate in the dyeing of cotton with reactive dyes. Dyes and Pigments, 65(3), 221-225.
[4]. Mohamed, F. A., & Mohareb, R. M. (2014). Synthesis and Application of Novel Reactive Disperse Dye Based on Tetrahydrobenzo [b] Thiophene Moiety. Research Journal of Textile and Apparel, 18(3), 28-34.
[5]. Clark, M. (Ed.). (2011). Handbook of textile and industrial dyeing: principles, processes and types of dyes. Elsevier.
[6]. Shaikh, T., Chaudhari, S., & Varma, A. (2012). Viscose rayon: a legendary development in the man made textile. International Journal of Engineering Research and Application, 2(5), 675-680.
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[8]. Di, Y., Long, G., Zhang, H., & Li, Q. (2011). Preparation and properties of viscose rayon/o-carboxymethyl chitosan antibacterial fibers. Journal of Engineered Fibers and Fabrics, 6(3), 155892501100600305.
[9]. Bairagi, N., Gulrajani, M. L., Deopura, B. L., & Shrivastava, A. (2005). Dyeing of N‐modified viscose rayon fibres with reactive dyes. Coloration technology, 121(3), 113-120.
[10]. Hearle, J. W., & Morton, W. E. (2008). Physical properties of textile fibres. Elsevier.
[11]. Burkinshaw, S. M. (1995). Chemical principles of synthetic fibre dyeing. Springer Science & Business Media.
[12]. Shaikh, T., Chaudhari, S., & Varma, A. (2012). Viscose rayon: a legendary development in the manmade textile. International Journal of Engineering Research and Application, 2(5), 675-680.
[13]. Hossain, I., Hossain, A., & Choudhury, I. A. (2015). Color strength modeling of viscose/Lycra blended fabrics using a fuzzy logic approach. Journal of Engineered Fibers and Fabrics, 10(1), 155892501501000117.
[14]. Hossain, I., Hossain, A., & Choudhury, I. A. (2015). Color strength modeling of viscose/Lycra blended fabrics using a fuzzy logic approach. Journal of Engineered Fibers and Fabrics, 10(1), 155892501501000117.
[15]. Hossain, I., Hossain, A., & Choudhury, I. A. (2016). Dyeing process parameters optimisation and colour strength prediction for viscose/lycra blended knitted fabrics using Taguchi method. The Journal of The Textile Institute, 107(2), 154-164.
[16]. Shahid, M. A., Hossain, M. I., Hossain, D., & Ali, A. (2016). Effect of different dyeing parameters on color strength & fastness properties of cotton-elastane (ce) and lyocell-elastane (le) knit fabric. International Journal of Textile Science, 5(1), 1-7.
[17]. Gun, A. D., & Tiber, B. (2011). Color, color fastness and abrasion properties of 50/50 bamboo/cotton blended plain knitted fabrics in three different stitch lengths. Textile research journal, 81(18), 1903-1915.
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Md. Abu Bakar Siddiquee, Md. Zahid Hasan, Md. Kamruzzaman “Effect of Dyeing Parameters on Color Strength of Viscose Rayon and Polyester Blended Fabric ” International Journal of Research and Innovation in Applied Science -IJRIAS vol.4 issue 3 March 2019, pp.28-32 URL: https://www.rsisinternational.org/journals/ijrias/DigitalLibrary/Vol.4&Issue3/28-32.pdf
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Ozioko H. O. and Ohazurike E. E. March 2019 Page No.: 33-36
This research focuses on the use of accelerated curing of concrete by means of warm water at 35°C. The experiment was checked regularly to maintain same temperature all through thetime of heating.The workability and compressive strength properties of the concrete produced from mix ratio 1:2:4 have been ascertained. Compressive strength test on the hardened concrete at 7,14,21 and 28 days were as well obtained. From the results, the value obtained for the slump test corresponds to the design range of 25mm-100mm. The slump increased from 60mm in sample A to 65mm in samples B and C and then decreased to 50mm in samples D and E this can be associated with the variation in temperature as well as hydration. Furthermore, the hardened concrete was found to have lost some weight after curing, this is because weight loss is accompanied by strength gain. A relationship between the concrete cubes cured under 1-day in the accelerated condition and normal concrete at 28 days was established so that the 28-day strength can be predicted from the accelerated. The relationship has been found mathematically as: R28 = Ra [0.8026 ± 0.0001] -1. Where R28 = 28-day strength andRa = accelerated strength. Optimal temperatures used in this research work is 35 ± 2°C. The 35°C used is optimal and help the hydration products, calcium silicate hydrates to settle suitably. Problem of possible compressive strength losses due to induced thermal stresses were taken care of by allowing a delay period equivalently equal to the initial setting time to elapse, so that concrete gained some tensile strength before curing commenced.
- Page(s): 33-36
- Date of Publication: 04 April 2019
- Ozioko H. O.
Department of Civil Engineering, Michael Okpara University of Agriculture Umudike, P.M.B 7267, Umuahia, Abia State, Nigeria - Ohazurike E. E.
Department of Civil Engineering, Michael Okpara University of Agriculture Umudike, P.M.B 7267, Umuahia, Abia State, Nigeria
References
Reference are not available.
Ozioko H. O. and Ohazurike E. E.”Accelerated Curing of Concrete Cubes Using Warm Water ” International Journal of Research and Innovation in Applied Science -IJRIAS vol.4 issue 3 March 2019, pp.33-36 URL: https://www.rsisinternational.org/journals/ijrias/DigitalLibrary/Vol.4&Issue3/33-36.pdf
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Lawal N.M, Osemeahon S.A, Boryo D.E.A, Joel Ogboji, Barambu A.U – March 2019 Page No.: 37-40
In this research work, formulation of emulsion paint from pure polyvinyl acetate (PVA) and polyvinyl acetate/soybeans oil (SBO) copolymer (PVA/SBO) resins (binder) was successfully carried out from 0 to 35 % concentrations. However, properties such as viscosity increases from (0.92 to 2.7 m2/s), density also decreases from (1.28 to 1.06 g/cm3), pH, flexibility, tackiness, stability and drying time, adhesion, resistance to blistering and chemical resistance of the formulated and commercial paint was carried out which shows encouraging (good) results. The results obtained when compared with the values of the commercial paint are within the acceptable level in the coating industry. The results have demonstrated the development of emulsion paint from PVA/SBO resin, this emulsion paint when fully harnessed will reduce the over dependence on the synthetic oil based paints and hence a reduction in volatile organic compounds (VOC) emission into our environment which will in turn provide a healthier environment.
- Page(s): 37-40
- Date of Publication: 06 April 2019
- Lawal N.M
Department of Chemistry, Faculty of science, Abubakar Tafawa Balewa University, Bauchi, Nigeria - Osemeahon S.A
Department of Chemistry, Modibbo Adama University, Yola, Nigeria - Boryo D.E.A
Department of Chemistry, Faculty of science, Abubakar Tafawa Balewa University, Bauchi, Nigeria - Joel Ogboji
Department of Chemistry, Faculty of science, Abubakar Tafawa Balewa University, Bauchi, Nigeria - Barambu A.U
Department of Chemistry, Faculty of science, Abubakar Tafawa Balewa University, Bauchi, Nigeria
References
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Lawal N.M, Osemeahon S.A, Boryo D.E.A, Joel Ogboji, Barambu A.U “Development of an Emulsion Paint from Polyvinyl Acetate/Soybeans Oil Copolymer Binder” International Journal of Research and Innovation in Applied Science -IJRIAS vol.4 issue 3 March 2019, pp.37-40 URL: https://www.rsisinternational.org/journals/ijrias/DigitalLibrary/Vol.4&Issue3/37-40.pdf
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Adelodun L. Kolapo, Temitope O.S. Popoola, Oluwatoyin R. Afolabi, Olusegun O. Atanda and Flora Oluwafemi – March 2019 Page No.: 41-48
The traditional aroma of soybean daddawa has not been perfectly replicated through controlled fermentation which made use of only Bacillus species. The present study therefore focused on selection of suitable starter cultures for the controlled fermentation of soybean daddawa with primary focus on using Bacillus species, heterofermentative Lactic acid bacteria (LAB) and Staphylococcus strains. The effect of mono and mixed starter cultures on the sensorial qualities of the produced soybean daddawa was also evaluated. A total of sixty-six bacteria strains isolated from spontaneously fermented soybean daddawa obtained from four sites were evaluated for their amylolytic, proteolytic, heterofermentation and coagulase activities. Based on the result of the screening exercise Bacillus subtilis LB3, Staphylococcus xylosus SAU3 and Leuconostoc mesenteroides ssp cremoris LAB5 were selected for controlled fermentation studies. The result of the antagonistic test between the selected microorganisms showed that the microorganisms were not antagonistic to one another. The enzyme profiles of the selected organisms indicated wide arrays of eleven enzymes. Prominent among these werealkaline and acid phosphatase, leucine arylamidase, trypsin, Naphthol-AS-B1-phosphohydrolase, valine arylamidase, α-chymotrypsin and α-glucosidase and β-galactosidase activities. The overall acceptability of soybean daddawa produced using the three starter bacteria was rated next best to naturally fermented soybean daddawa. This holds a great promise for subsequent industrialization of soybean daddawa production as natural fermentation of soybean daddawa is now nearly replicated in a controlled setting.
- Page(s): 41-48
- Date of Publication: 06 April 2019
- Adelodun L. Kolapo
Biological Sciences Department, Augustine University, Ilara-Epe, Lagos State, Nigeria - Temitope O.S. Popoola
Microbiology Department, Federal University of Agriculture, Abeokuta, Ogun State, Nigeria - Oluwatoyin R. Afolabi
Microbiology Department, Federal University of Agriculture, Abeokuta, Ogun State, Nigeria - Olusegun O. Atanda
Department of Biological Sciences (Microbiology Unit), McPherson University, Seriki Sotayo, P.M.B. 2094, Sapon, Abeokuta, Ogun State, Nigeria - Flora Oluwafemi
Microbiology Department, Federal University of Agriculture, Abeokuta, Ogun State, Nigeria
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Adelodun L. Kolapo, Temitope O.S. Popoola, Oluwatoyin R. Afolabi, Olusegun O. Atanda and Flora Oluwafemi “Evaluation of Spontaneously Fermenting Soybean Daddawa Microbiota’s Potential for Starter Culture Application ” International Journal of Research and Innovation in Applied Science -IJRIAS vol.4 issue 3 March 2019, pp.41-48 URL: https://www.rsisinternational.org/journals/ijrias/DigitalLibrary/Vol.4&Issue3/41-48.pdf
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J. Omame and A. Y. Kabiru – March 2019 Page No.: 49-53
Malaria is a leading cause of death in most developing countries. It is responsible for about 300 million clinical cases and 1-2 million deaths annually. The plant Ficus platyphylla is a deciduous plant that is used mostly in the northern part of Nigeria for the treatment of malaria and other illnesses. This study was aimed at investigating the antiplasmodial activity of partially purified leaf extract of F. platyphylla Del in mice. Safe dose determination was carried out to determine the LD50 of the plant extract. For the curative study, twenty one mice were divided into seven (7) groups with five mice in each group. Groups 1, 2, 3, and 4 were administered 600mg/kg body weight of each of the four fractions obtained from the partially purified leaf extract while groups 5 and 6 were administered 50mg/kgbw of artesunate and 0.2ml Normal saline respectively. Group 7 was left untreated. Treatment continued for five days and the level of parasitemia in the blood was determined and the body weight, Packed Cell Volume (PCV) and survival time were also evaluated. Acute oral toxicity of the crude plant extract indicates safety of the plant extract at all doses tested. It was also observed from the study that all fractions show remarkable inhibitory activities against malaria parasite compared to the control groups. There was a significant difference (p<0.05) in the PCV of the treated groups when compared to the control. Only few of the animals in all the treated groups survived beyond day 30 of the experiment. It can be deduced that the partially purified leaf extracts of F. platyphylla possessed antiplasmodial activity thus, indicating its potential as an antimalarial.
- Page(s): 49-53
- Date of Publication: 06 April 2019
- J. Omame
National Environmental Standard and Regulation Enforcement Agency, Lagos Field Office, Nigeria - A. Y. Kabiru
Department of Biochemistry School of Life Science, Federal University of Technology Minna, Nigeria
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J. Omame and A. Y. Kabiru “Antiplasmodial Activity of Partially Purified Crude Pet Ether Leaf Extract of Ficus Platyphylla Del In Mice ” International Journal of Research and Innovation in Applied Science -IJRIAS vol.4 issue 3 March 2019, pp.49-53 URL: https://www.rsisinternational.org/journals/ijrias/DigitalLibrary/Vol.4&Issue3/49-53.pdf
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Otobong B. Iren, Victoria F. Ediene – March 2019 Page No.: 54-60
The impact of spent petroleum products (diesel and engine oil) discharge from generating plant on soil properties and heavy metal concentrations within the University of Calabar, Nigeria was investigated. Twelve composite soil samples (0-30 cm) were collected from four generating plants within the University. The soil texture irrespective of sampling point was sandy loam. The soil pH ranged from 6.5 to 7.3 in all the locations. The soil organic carbon and total nitrogen were more at point of discharge (POD) i.e. contaminated sites than the uncontaminated while phosphorus content was the reverse. The concentrations of Cd, Pb, Fe, Mn, Cu and Zn ranged from 3.08 – 4.60, 216.00 – 242.75, 322.20 – 517.02, 200.67 – 284.01, 49.99 – 58.27 and 103.67 – 150.67mgkg-1 at POD, respectively. The contamination/pollution index (MPI) classifies the soils at POD as being excessively polluted with Cd and Zn, severely polluted with Mn and Cu and moderately polluted with Pb and Fe. It is therefore recommended that the discharge of petroleum products from generating plant should be avoided in order to reduce the negative impact on the soil ecosystem and human health.
- Page(s): 54-60
- Date of Publication: 07 April 2019
- Otobong B. Iren
Department of Soil Science, University of Calabar, Calabar, Nigeria - Victoria F. Ediene
Department of Soil Science, University of Calabar, Calabar, Nigeria
References
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Otobong B. Iren, Victoria F. Ediene “Impact of Spent Petroleum Products Discharge from Generating Plant on Soil Heavy Metal Concentrations within University of Calabar, Nigeria” International Journal of Research and Innovation in Applied Science -IJRIAS vol.4 issue 3 March 2019, pp.54-60 URL: https://www.rsisinternational.org/journals/ijrias/DigitalLibrary/Vol.4&Issue3/54-60.pdf
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Mary Caroline Wambui Mwangi, Wangui Anthony Muchiri – March 2019 – Page No.: 61-67
Educating future health care practitioners is an important role for universities. Optimal learning environments consider how students learn and utilize various teaching methods to tailor curriculum delivery to match specified student learning preferences. Individualshave a preferential focus on different types of information, the different ways of perceiving the information, and the understanding of information. The grouping of students according to a number of scales and questionnaires pertaining to the ways they receive and process information is defined as a learning style model. Learning Styles is chiefly associated with Honey and Mumford who spent a considerable amount of time on the topic and coming up with the Learning Styles questionnaire in 1982. The study was a descriptive cross-sectional design. Purposive sampling was used. The study site was in the Kenya Medical Training College-Nairobi campus during the 2015/2016 year of study. A questionnaire composed of two questionnaires by Honey and Mumford (1982) and Neil Fleming (1987) was used. Statistical Program for Social Scientists (SPSS) v.25 was used to analyze the data collected. 124 responses were acquired majority being male 58.06%. First years were the majority 37.1%. Reflectors were the bulk of the population 66.1% and pragmatists the least 7.3%. First years were majorly 73.9% Reflectors with high significance relationship between the year of study and the learning philosophy (ꭓ2= 4.987, df=6 P=0.002). Reflectors stood out as the majority in all the learning styles, 47% of the respondents were Reflectors and Kinesthetic learners. On VARK majority of the students applied Kinesthetic as moe of learning. A significant association between the year of study and the learning philosophies (ꭓ2=6.56, p<0.0001 df=6). Similarly, there was a significant association between the gender of the participants and the learning styles (ꭓ2=3.56, p<0.001 df=6). It can be recommended that the learning preferences of physiotherapy students should be verified prior to the start of their academic tasks by using the VARK questionnaire and the categorization of learning into the philosophical classes. The preferred learning styles of medical students in the present study were aural and reading/writing styles. I would like to extend my gratitude to the students who participated in this study and completed the questionnaires
- Page(s): 61-67
- Date of Publication: 08 April 2019
- Mary Caroline Wambui Mwangi
Department of Health Profession Education, School of Public Health, Biomedical Sciences and Technology, Masinde Muliro University of Science and Technology, Kakamega, Kenya - Wangui Anthony Muchiri
Department of Health Promotion and Sports Science, School of Public Health, Biomedical Sciences and Technology, Masinde Muliro University of Science and Technology, Kakamega, Kenya
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Mary Caroline Wambui Mwangi, Wangui Anthony Muchiri “Learning Style Preferences of Physiotherapy Students in the Kenya Medical Training College ” International Journal of Research and Innovation in Applied Science -IJRIAS vol.4 issue 3 March 2019, pp.61-67 URL: https://www.rsisinternational.org/journals/ijrias/DigitalLibrary/Vol.4&Issue3/61-67.pdf
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Abiyong, P. A., Bidoli, T, D and Nyiatagher, Z.T – March 2019 – Page No.: 68-74
The objective of the study was to examine pig business in Kaduna State, Nigeria. Multi stage and purposive sampling techniques were used in selecting a random sample size of hundred (100) pig producers for the research. A structured questionnaire was administered on respondents for information. Data were analysed using descriptive statistics such as percentages, frequency, gross margin model and Cobb Douglas production function. The result revealed that majority (57%) of respondents involved in pig business were females.Pig business was profitable with a return per naira invested of 0.69 kobo and gross margin of N8,426.30 per pig. The t- test confirmed that pig business was profitable and significant at 1% level. Pig business operated at stage ii of the production function, indicating a decreasing return to scale with summed coefficients of 0.823. The study recommended that government should intervene through the provision of extension services and access to credit facilities.
- Page(s): 68-74
- Date of Publication: 11 March 2019
- Abiyong, P. A.
Department of Agricultural Extension and Management, School of Agricultural Technology, Samaru Kataf Campus, Nuhu Bamalli Polytechnic, Zaria, Kaduna State, Nigeria. - Bidoli, T, D
National Agricultural Extension and Liaison Services (NAERLS), Ahmadu Bello University, Zaria - Nyiatagher, Z.T
Federal University of Agriculture, Makurdi, Benue State, Nigeria
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Abiyong, P. A., Bidoli, T, D and Nyiatagher, Z.T “Determinants of Piggery Business in Kaduna State, Nigeria” International Journal of Research and Innovation in Applied Science -IJRIAS vol.4 issue 3 March 2019, pp.68-74 URL: https://www.rsisinternational.org/journals/ijrias/DigitalLibrary/Vol.4&Issue3/68-74.pdf
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