Open Access Original Research Article

Numerical Study of Strip Footings Behavior on Compacted Sand

Nasser A. A. Radwan, Khaled M. M. Bahloul

Journal of Engineering Research and Reports, Page 1-10
DOI: 10.9734/jerr/2019/v5i316924

The aim of this research is to investigate numerically the effect of using compacted sand as soil replacement layer beneath a strip footing on its bearing capacity. Finite element computer software Plaxis 2D version 8.6 was used to predict the behavior of strip footing resting on loose sand and on compacted sand. Study was conducted for footing widths of 1 up to 2 meters and various depths ranging from 1m up to 2m, also the effect of replacement layer thickness was investigated. It was found that using replacement layer beneath strip footing increases its bearing capacity for different widths and depths of footing. This improvement is observed up to thickness of replacement layer equal to 3 times the footing width (H/B=3), where further increase in replacement layer thickness does not affect significantly bearing capacity of footings.

Open Access Original Research Article

Performance Evaluation of a Portable Ginger Slicing Machine

I. Abubakar, D. D. Yusuf, U. S. Muhammed, A. Zakariyah, J. K. Agunsoye, K. A. Habiba, Z. U. Bashar

Journal of Engineering Research and Reports, Page 1-8
DOI: 10.9734/jerr/2019/v5i316925

The study aimed at evaluating the functional performance of a developed portable ginger rhizomes slicing machine. The study was conducted at various levels of impeller speed, impeller gang and slicing compartment in the Department of Agricultural and Bioresources Engineering, Ahmadu Bello University, Zaria, Nigeria between April 2018 and June 2018. A  factorial experiment in a Completely Randomized Design (CRD) was used.  The indices for the performance evaluation were the Slicing Efficiency and Throughput Capacity. The machine was powered by one horse power petrol engine and ginger moisture content of 77.44%. Data collected were subjected to statistical analysis using Analysis of Variance (ANOVA) to test the significance level of the experimental factors and their interactions; and those found significant were further subjected to Duncan Multiple Range Test (DMRT) for mean separations at (P = .05), respectively.  The results showed that, the ANOVA for all the factors evaluated and their interactions on Slicing Efficiency were highly significant at (P ≤ .01). However, the ANOVA for the factors evaluated on Throughput capacity were highly significant but interaction between type of compartment and speed of impeller was not significant at (P =.05). The mean Slicing Efficiencies for the cushion and spring compartments were: 63.5 and 50% while the mean Throughput Capacities were: 58.32 and 6.32 kg/h, respectively.

Open Access Original Research Article

Data Mining and Statistical Analysis for Available Budget Allocation Pre-procurement of Manufacturing Equipment

O. O. Ojo, B. O. Akinnuli, P. K. Farayibi

Journal of Engineering Research and Reports, Page 1-13
DOI: 10.9734/jerr/2019/v5i316926

In a situation where a decision maker faces problems of allotting the available budget on the strategic decisions in a manufacturing industry, data information plays an important role to maintain long run profit in the industry. Statistical analysis was incorporated to determine the correlational strength between the number of years and each of the strategic decisions, their confidence level, and the predicted values. This study identified the strategic areas of addressing the issues which are machine (), accessory (), spare part () and miscellaneous (), exploring the hidden data of the selected strategic decisions from International Brewery Plc, Ilesha and statistical analysis between the number of years and each of the selected strategic decisions. The model used in this work is simple linear regression while Statistical Analysis Software “SAS” was used for its applications. After exploring the hidden data from a case study, the suggested cost of procurement for machines, accessories, spare-parts and miscellaneous are: ₦119,975,000.00; ₦127,968,000.00; ₦134,965,000.00 and ₦33,491,500.00 respectively. From appendix, the probability of each of the strategic decision is less than 0.05 which implies that the Null-Hypothesis is rejected. The number of years has significant effect on Machines, Accessories, Spare-parts and Miscellaneous. As the number of years increases, the cost of procurement of the strategic decisions increases due to high rate of demand and consumption of their products. However, the cost of procurement may fall depending on the level of demand and maintenance culture. Besides, management of the company may ask decision maker to maintain the cost before procurement. This result may be used for further research on optimization of the available budget for equipment procurement.

Open Access Original Research Article

Performance Evaluation of Drip Irrigation Systems on Production of Okra (Hibiscus esculentus) in Southwestern, Nigeria

M. O. Amoo, T. A. Ademiju, A. J. Adesigbin, G. A. Ali

Journal of Engineering Research and Reports, Page 1-10
DOI: 10.9734/jerr/2019/v5i316928

This study was carried out to evaluate the performance of drip irrigation systems on the production of okra (Hibiscus esculentus) in southwestern, Nigeria. Application of water to crops in an area of scarcity of water is very important to meet the food demand of the ever-increasing population and modified irrigation techniques that can assist the okra farmers to have affordable irrigation systems that will get them great yields at the end of the season was evaluated in this paper. A field experiment was conducted at the Teaching and Research farm of Agricultural and Bio-Environmental Engineering Department, School of Engineering Technology, The Federal Polytechnic, Ado, Ekiti - State, Nigeria. The field area of 150 mby 400 m was properly cleared, stumped, ploughed and harrowed. The topography of the land was flat with its suitable soil structure, texture, retention capacity and loamy clay soil. The cultivated area of land was divided into three and on each experimental plot, high yield and disease resistant okra variety seeds obtained from a research institute (IITA) were carefully selected and planted at a regular interval of 0.6 m. Drip laterals were laid in between rows of okra plants with inline drippers at a spacing of 20 cm. The parameters measured include okra seed germination, plant height, stem girth, number of leaves and yield production. The study also includes soil properties, crop water requirement and crop water use efficiency. There were no significant difference in the okra agronomic parameters at each experimental plots under drip irrigation system. The water applied to crop was greater than the actual crop water requirement and the efficiency of the drip irrigation was 68.5%.  There is high in seed germination percentage in with 3.5%, 3.6% and 3.8% at each experimental plot respectively. The selected okra agronomic parameters showed that okra performed very well under drip irrigation systems. Based on the results, water application through drip irrigation has a positive impact on growth and vegetative development of okra.

Open Access Review Article

Climate Change Effect on Water Supply Sanitation and Hygiene (WASH) Sector

Ganga Datta Nepal

Journal of Engineering Research and Reports, Page 1-5
DOI: 10.9734/jerr/2019/v5i316927

To continue the exiting ecosystem and healthier future for our upcoming generation. Current generation indeed need to be aware of mitigation and adaptation action to be taken for the sake minimization of climate change effect at local, regional or global level. For the mandatory operationalization, global governance is must; so that harmonisation, coordination and collaboration can start from all levels. In addition, all kinds of development sector should establish a climate change mitigation and adaptation plan. Effects climate change has not only brought a warmer world but also create an anthropogenic effect on the society likely health, social, economic and humanitarian injuries. Disasters such as landslide; flooding, tsunami sometimes cause to life casualties. In developing world, focus to be taken for proper WASH services i.e. waterborne diseases like diarrhoea, dysentery and cholera may cause many illnesses that lead the loss of human.