Series - 1 [January - 2021]

Paper Title :: Polymorphism of Ovocalyxin-32 Gene among Six Nigerian Chicken Populations
Author Name :: Ohagenyi I. J || Oleforuh-Okoleh V. U || Ikeh N. E || Egom M. A || Nnajiofor N. W || Udeh F. U || Ogbu C. C
Page Number :: 01-03
:: 10.9790/1813-1001010103   

Ovocalyxin-32 (OCX-32) is a matrix protein found within the outer layers of the eggshell. Numerous reports in the literature have identified association between variants in the gene encoding this protein OCX-32 and various eggshell quality traits. Thus, OCX-32 is a candidate gene for eggshell traits in commercial poultry populations. Sequencing of exon 1 and 2 of the OCX-32 gene in six Nigerian chicken populations revealed 2 SNPs. Two polymorphic sites (-162T and T229G) were identified in broiler (a commercial line) and Abuja populations respectively. However, SNPs T229G present in exon 2 caused an amino acid change indicating that the polymorphic sites identified in the ABJ population probably represent a small fraction of a more common polymorphic site found in the chicken populations.........

Keywords - OCX 32, SNPs, Diversity, Chicken, Populations

@article{key:article,
author = {Ohagenyi I. J || Oleforuh-Okoleh V. U || Ikeh N. E || Egom M. A || Nnajiofor N. W || Udeh F. U || Ogbu C. C},
title = {Polymorphism of Ovocalyxin-32 Gene among Six Nigerian Chicken Populations},
journal = {The International Journal of Engineering and Science},
year = {2021},
volume = {10},
number = {01},
pages = {01-03},
month = {January}
}
Paper Title :: Digital structure design of a small nozzle flowmeter
Author Name :: Jiang-Bo Tong || Sen-Da Qi || Feng Wang || Zi-Yan Hu || Yao-Qian Wang || Cheng-Xi Chai || Shi-Shi Jiang || Bo-Jie Xu
Page Number :: 04-10
:: 10.9790/1813-1001010410   

Nozzle flowmeter is a differential pressure generating device for measuring flow. It can measure the flow of various fluids in the pipeline with various differential pressure gauges or differential pressure transmitters. Because of its small pressure loss, it can save energy and is more durable. It is suitable for high temperature and high pressure fluid. It is widely used in the steam flow measurement of electric power, chemical industry and other industries. In this study, through the numerical calculation and analysis of nozzle flowmeter parameters and the determination of appropriate model, the working performance of nozzle flowmeter is preliminarily estimated and the digital structure design is carried out. The results of this study will provide a good basis for further study of nozzle flowmeter

Keywords - Nozzle flowmeter, Structure design, Parameter calculation

@article{key:article,
author = {Jiang-Bo Tong || Sen-Da Qi || Feng Wang || Zi-Yan Hu || Yao-Qian Wang || Cheng-Xi Chai || Shi-Shi Jiang || Bo-Jie Xu},
title = {Digital structure design of a small nozzle flowmeter},
journal = {The International Journal of Engineering and Science},
year = {2021},
volume = {10},
number = {01},
pages = {04-10},
month = {January}
}
Paper Title :: Creating City Models in ArchiCAD Software Environment
Author Name :: Péter Fejes || András Horkai
Page Number :: 11-17
:: 10.9790/1813-1001011117   

In the 1960s, the 3D-based design from the aviation and automotive industries has now fundamentally changed the construction industry too. Model-based processes open up new opportunities in both design and decision support: engineers have been able to do various spatial tests and simulations. However, our buildings (whether they are residential or public buildings) are typically cannot be interpreted without the conditions – the urban fabric – next to them, the modelling of which often places a considerable burden on architects. Given that GRAPHISOFT ArchiCAD is the most frequently used design software among architects in Hungary, present research aimes to explore and evaluate 3D modeling methods that allow the fast creation of city models in ArchiCAD software environment.........

Keywords - ArchiCAD, BIM, city model, footprint, GIS, Grasshopper

@article{key:article,
author = {Péter Fejes || András Horkai},
title = {Creating City Models in ArchiCAD Software Environment},
journal = {The International Journal of Engineering and Science},
year = {2021},
volume = {10},
number = {01},
pages = {11-17},
month = {January}
}
Paper Title :: Construction of Solar Dryer for Drying Agricultural Produce: Tomato Slices
Author Name :: Abdullahi Zubairu Abdulhamid || Ado Yahaya Sumaila || Inuwa Aliyu Faragai || Sani Garba Durumin-Iya || Turado Surajo Abubakar
Page Number :: 18-23
:: 10.9790/1813-1001011823   

This research dwells on the construction and performance evaluation of mixed-mode solar dryer for Tomato Slices at Kano University of Science and Technology, Wudil. A mixed-mode solar dryer utilizes direct solar radiation from the sun as well as inputs heat from the solar collector inlet which is directly connected to the dryers and at the same time the drying cabinet absorbs solar energy directly through the transparent glass. The results obtained during the test period revealed that the temperature inside all the dryers was much higher than the ambient temperature during most hours of the day-light. However, the temperature risen up inside the drying cabinet was up to 63.1°C with one inlet and also 68.8°C with two inlets occurred within the hour immediately after 12.00 noon. The capacity of the dryer is 0.2kg of products per tray while the inlet temperature is identified to play a crucial role in the solar dryer performance.

Keywords - tomato slices, solar energy, dryer, mixed mode, performance evaluation.

@article{key:article,
author = {Abdullahi Zubairu Abdulhamid || Ado Yahaya Sumaila || Inuwa Aliyu Faragai || Sani Garba Durumin-Iya || Turado Surajo Abubakar},
title = {Construction of Solar Dryer for Drying Agricultural Produce: Tomato Slices},
journal = {The International Journal of Engineering and Science},
year = {2021},
volume = {10},
number = {01},
pages = {18-23},
month = {January}
}
Paper Title :: Evaluation of Heavy Metals and Antimicrobial Efficacy of Four Hand Sanitizers Used during COVID-19 in AFIT, Kaduna
Author Name :: Mansurat Shoge || Abdulrahman Abdullateef || Eucharia Ngozi Ozioko || Abdulmajeed Muhammad Na'inna || Hameed Adeniyi Lawal
Page Number :: 24-27
:: 10.9790/1813-1001012427   

This study was to evaluate the permissible exposure limit (PEL) of heavy metals and the antimicrobial efficacies of four hand sanitizers, in disinfection of bacterial contamination in Air Force Institute of Technology, during the pandemic of Corona virus disease-2019 (COVID-19). The products tested were that of Air Force Institute of Technology-AFIT, with other brands identified as sample A, B, C, and D respectively. AFIT sanitizer is an alcohol-based hand sanitizer certified by Standard Organization of Nigeria (SON). Sample A, B, C, and D; are alcohol-based hand sanitizers are products certified by Nigerian Agency for Food and Drug Administration Control (NAFDAC), which are commercial brands of hand sanitizers sold in the market. Sample A product was found to be more effective in reducing bacterial load when compared to sample C and D products. All samples had a bacteriostatic effect to E.coli. Sample B, C and D sanitizers were shown to have more presence of cadmium (Cd), while sample A, B and D had presence of Lead (Pb), sample C alone had the presence of copper (Cu), which are all toxic to the human body. The community showed more interest to antimicrobial efficacy and skin compatibility as a reasonable number were irritated by the scent..

Keywords - COVID-19, hand-sanitizer, heavy metals, antimicrobial efficacy

@article{key:article,
author = {Mansurat Shoge || Abdulrahman Abdullateef || Eucharia Ngozi Ozioko || Abdulmajeed Muhammad Na'inna || Hameed Adeniyi Lawal},
title = {Evaluation of Heavy Metals and Antimicrobial Efficacy of Four Hand Sanitizers Used during COVID-19 in AFIT, Kaduna},
journal = {The International Journal of Engineering and Science},
year = {2021},
volume = {10},
number = {01},
pages = {24-27},
month = {January}
}
Paper Title :: Simulation Analysis of Ito Films Optoelectronic Properties
Author Name :: Turado Surajo Abubakar || Inuwa Aliyu Faragai || Y. A. Sumaila || Sani Garba Durumin Iya || Abdullahi Iliyasu Khamisu
Page Number :: 28-33
:: 10.9790/1813-1001012833   

The unique optical and electrical properties of indium tin oxide (ITO) films have been regarded as one of the prominent transparent and conducting oxides (TCO) films used as contact layer in several optoelectronic applications. ITO films optoelectronics properties were studied using a computer simulation method with respect to thickness. Developed mathematical models of ITO films optical and electrical properties were used to determine the trend features of the films with respect to thickness and wavelength. Improvement in optical transmission was observed as the films thickness decreases with film of low thickness exhibiting a maximum transmission of 91 % in the visible region. Electrical property improved with increasing thickness. Low electrical resistivity of 7.4 Ω-cm was obtained by film with small sheet resistance (10 Ω/sq). The remarkable features of the results suggest that the developed models are significant for understanding the trend features of ITO films optoelectronic properties.

Keywords - ITO; Matlab; simulation; Thickness; transmission; reflectance

@article{key:article,
author = {Turado Surajo Abubakar || Inuwa Aliyu Faragai || Y. A. Sumaila || Sani Garba Durumin Iya || Abdullahi Iliyasu Khamisu},
title = {Simulation Analysis of Ito Films Optoelectronic Properties},
journal = {The International Journal of Engineering and Science},
year = {2021},
volume = {10},
number = {01},
pages = {28-33},
month = {January}
}