Engineering

Research Papers/Topics in Engineering

Evaluation of Maize Response (Zea mays L.) to Various Modes and Moments of Chicken Manure Spreading in Lubumbashi, DR Congo

Soils of sub-saharan countries have low inherent fertility, this deficiency is main factor determining agricultural production. Most of previous studies showed beneficial effects of organic matter in improving physical and chemical properties of soil and increasing yields. However, it remains unclear about when and how to spread the organic matter to get maximum nutrients for plants. This study was conducted in conditions of Lubumbashi to determine the influence of sp...

Impact of Chicken Manure Integration with Mineral Fertilizer on Soil Nutriments Balance and Maize (Zea mays) Yield: A Case Study on Degraded Soil of Lubumbashi (DR Congo)

One of the most important challenges to continuously maximize crop production on limited areas of agricultural land is to maintain or enhance soil fertility. Organic fertilizer application is needed to replace nutrient removed by crop from the fields in order to restore crop production potential of a soil. But application of organic fertilizer alone insufficiently increases crop yield per area because the nutrient content of organic fertilizer is unbalanced. A trial was co...

Les faibles doses de biomasses vertes de légumineuses, des bons substituts des engrais minéraux dans la maïsiculture à Lubumbashi ?

La fixation symbiotique d’azote est un atout majeur des légumineuses pour substituer aux engrais chimiques surtout pour les cultures exigeantes en azote comme le maïs. Le coût élevé des engrais minéraux limite leur utilisation pour les paysans qui pratique une agriculture de subsistance. De plus, ces engrais chimiques généralement utilisés acidifient les sols. Ainsi, cette étude a été initiée en vue d’évaluer les potentialités des faibles doses des biomasses à base de ...

EFFECTS OF LIQUID WASTES FROM AUTOMOBILE WORKSHOPS ON PROPERTIES OF SOILS IN ENUGU STATE, NIGERIA

ABSTRACT: This study was carried out in Udi, Udenu and Nsukka Local Government Areas, in Enugu state. The effects of liquid wastes from automobile workshops on some selected soil properties of the study area were investigated. Auger samples were collected at two depths, (surface, 0- 20cm) and (subsurface, 20- 40cm) of automobile wastes contaminated sites and 100m away for uncontaminated sites. Core samples were collected from both soils and surface samples were again collected for planting m...

Evaluation of The Effect of ANTHROPOGENIC Activities and Domestic Waste On Surface Water

ABSTRACT The microbiological and organic pollutants characteristics of Owena dam in Ifedore local  government  area  of  Ondo-state,  Nigeria  was  carried  out,  nine  water  samples  were collected from three different parts of the downstream side, which include; around the waste disposal  site,  community  settlement  and  farm  environment.  The  microorganisms  isolated were&nbsp...

Evaluation of The Effectiveness of Quality Control in Dangote Cement Plc

   v  ABSTRACT The project evaluates the effectiveness of quality control  in Dangote Cement PLC, Ibese  Ogun  State,  Nigeria.  Limestone,  shale  and  laterite  samples  were  from  the  mines  to determine their right grade as well as their mixing proportion. Also samples were taken from kiln feed and the final stage of cement production. The compressive strength of the cubes is determined according t...

Robotics: Kinematics and Mathematical Foundations (Lesson Note)

The Goal• Develop the mathematical tools that we need to talk about where things are in space.• Where things are depend on where you are looking at them from. How do we make this more precise?

Kinetic Study and Optimization of Selected Factors Affecting Corrosion Using RSM

ABSTRACT   The kinetics and optimization of inhibitive action of leaves extract of pawpaw, Azadirachta indica (neem tree) and bitter leaf on corrosion of mild steel in acidic medium was studied by weight loss technique using central composite design of response surface methodology for optimization. The metal was analyzed using Atomic Absorption Spectrophotometer to determine its elemental compositions. The extract was obtained by liquid extraction using ethanol and was analyz...

Review on Some Plants as Bio-pesticides

Abstract: The study used Onion (Allium Cepa), Garlic (Allium Sativum L.) and Sour Orange (Citrus Aurantium) to assess their effectiveness as bio- pesticides. The study also revealed that plants play vital roles towards the storage of many food stuffs. The consideration for the used extracts of plants origin is that they were easily biodegradable, effective on some pests and considered safer in pest control operations as they minimized pesticide residues and also ensured  safety of th...

OPTIMUM DESIGN OF WELDED PLATE GIRDER

ABSTRACTThe Project work presents an Optimum design of welded plate girder. A simply supported plate girder with span of 15meters was chosen for the case study. The girder was subjected to a self-weight of 50KN/m and concentrated loads of 1000KN at 5m and 10m from the left support. The plate girder was analysed to get the design moments and shear forces. An initial manual design was carried out for the plate girder in accordance with BS 5950-2000. From the design, initial section parame...

EFFECTS OF DIFFERENT TYPES OF ANIMAL MANURE ON MICROBIAL ABUNDANCE AND MAIZE YIELD

The study aimed at identifying animal manure which influences soil health indicators (microbial abundance), was conducted at Lilongwe university of Agriculture and Natural Resources (LUANAR) crop and soil science student farm. The experiment had four treatments; cattle manure., goat manure,pig manure and chicken Manuel. Treatments were arranged in RCB replicated three times. The ANOVA shows that there was significant difference (p

Dealing With Problems with Lime Stabilization Using Woven Geotextile under Soaked Conditions

Abstract: This paper examined the basic engineering and geotechnical properties of poor subgrade soils using woven geotextile to stabilize it and to also deal with the problem with lime under soaked conditions, it is intended at increasing the strength and mechanical properties of the soil even in extreme conditions. This is considered to be of great importance in civil engineering works as road structures need to be catered for during rainy season. Subgrade soils, it...

Assessment of Physicochemical and Bacteriological Parameters of Borehole Water of Lekki

Global health issues have awakened Engineers to looking into the causes of most health challenges and looking for ways to improve health status of humans. Research has shown that poor water contributes to most human health challenges. Water contributes perhaps most importantly to everything called existence. Virtually everything requires water. All living things depends on water to survive, which varies from one organism to another based on sizes, and many other factors, hence, need to provid...

Design and Fabrication of Sedimentation Test Rig

ABSTRACTNowadays, the destruction and pollution of humane environment has produced an ever growing awareness worldwide of the need for more effective sedimentation processes. The main aim of this project was to design and fabricate an experimental sedimentation rig with the objective to determine the rate of settling against time using calcium carbonate as a test sample.The rig consists mainly of the cylindrical tank, valves, motor, stirrer, and the sight glass. For the test run, 82 litres of...

The Principle of Particle Settling in Motionless Fluid

ABSTRACTNowadays, the destruction and pollution of humane environment has produced an ever growing awareness worldwide of the need for more effective sedimentation processes. The main aim of this project was to design and fabricate an experimental sedimentation rig with the objective to determine the rate of settling against time using calcium carbonate as a test sample.The rig consists mainly of the cylindrical tank, valves, motor, stirrer, and the sight glass. For the test run, 82 litres of...


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