This research work was carried to examine the rate of production of biogas through anaerobic digestion of fresh Cow rumen obtained from slaughter house in Woji, Trans-Amadi, Port Harcourt. The Kinetics of the biogas produced upon the influence of biodegradation was studied using kinetic model linear, power, growth rate decay, non-elementary rate models to establish the model that best predicts the amount of biogas obtained from the experimental obtained parameters. The total solid, volatile solid, ash content and pH was evaluated upon the influence of the biomass. Also, the temperature and pressure build-up during the anaerobic digestion process were recorded weekly. The results of the analysis showed that is, volatile solid, ash content were 0.924g/g, 0.734g/g and 0.1414g/g, while the PH value before and after the analysis were 7.45 and 7.26 as well as fluctuation in temperature between 300C and 34.50C was observed.
There are various control methodologies for direct current motors with each method possessing its attendant peculiarity
The move towards a de-carbonised world, driven partly by climate science and partly by the business opportunities it offers, will need the promotion of environmentally friendly alternatives
China has a vast territory and a large population, so rail transit has always been an important direction of China's development. With the continuous development of rail transit in China, higher requirements put forward for the efficiency, safety and stability of train operation
The offshore industry has seen the introduction of a new breed of jack-up designs, capable of operating in deep water and harsh environments
Robot manipulator route planning can be defined as the process of simplifying any motor task into a single movement, while satisfying the movement restriction and optimizing the cost function
This paper generally deals with the differences of results using limit equilibrium method and finite element methods in case of soil slope stability analysis to develop correlations for the value of factor of safety.
In order to solve the problem of high false positive rate of traditional SVD domain digital watermarking algorithm, a digital watermarking algorithm based on IWT and SVD is proposed
In order to solve the problem of high false positive rate of traditional SVD domain digital watermarking algorithm, a digital watermarking algorithm based on IWT and SVD is proposed
The problem of calculating the dynamic stress-strain state of viscoelastic rectangular isotropic plates on a deformed base, including those lying freely on the ground medium under the influence of vibration loads, is solved
The paper presents an experimental investigation out to evaluate the mechanical properties of concrete mixtures in which fine aggregate (sand) was replaced with Copper Slag (CS)
The research work deals with an experimental investigation of the properties of steel fibre reinforced concrete (SFRC). It studied thirteen samples of SFRC mixes of M30 concrete of varying dosage of 3D and 5D steel fibres; ranging from 25kg/m3 to 45 kg/m3.
Investigation was conducted in some communities of Cross Rivers State to experimentally examine the effect of soil characteristics on metal corrosion in different soil environment of clay, swampy and sandy.
The bumper beam is an important member which is integrated in front portion and the rear portion of the vehicle. The purpose of the bumper is to absorb the impact energy in the case of crash and guard the central operational components
Adequate and efficient road transport infrastructure serves as the pillar for social and economic growth of any nation, the objective of this study is to identify the various road transport infrastructural deficit along kola to Ikeja in Lagos state
The saw or wood dust is a hazardous by-product resulting from cutting, grinding, drilling, sanding, or otherwise pulverizing wood or any with a saw. It causes many environmental and health hazards.
With increasing development of wireless communication network, Unmanned Aerial Vehicle (UAV) has emerged as a flying platform for wireless communication with efficient coverage, capacity and reliability but UAV as a FANET (Flying Ad-hoc Network)
Repeated and concentrated loading and environmental impactsare considered as a major challenge facing the serviciability of flexible pavement
The charging current, discharge rate, discharge limit and operating temperature are sensitive matters in LIBs. Economic losses of high magnitude also arise from collapse of battery bank due to single weak battery which has been charged/discharged repeatedly beyond safe operating limit
Li-ion Batteries (LiBs) explode when there is uncontrolled/regulated charging, thus leading to gradual/catastrophic failures. Dendrites (electrical short inside a battery/cell) are also formed when LIBs is charged with high current
The study of a biokinetic model development for bioremediation of 1kg of crude oil contaminated soil inoculated with crushed sundried and room-dried Azadirachta indica stem was conducted
Tunneling was an approach used to excavate and construct tunnel. Most engineers agree that tunnel length, tunnel cross section, tunnel depth, geotechnical condition and level of water table were the most probable factor governs the selection of tunnel boring machine or tunneling approach.
Flexible pavement is usually constructed in multiple layers since the maximum thickness of a single hot mix asphalt layer is limited to that a roller can compact
The main objectives of the study were to evaluating performances Gobu-I and II modern spate irrigation schemes. The Primary data collected includes measurement of canal and field discharge and the secondary data
The compaction characteristics of some selected lateritic soils was the focus of this research. The soils fall under soil class A-2-6 (0), A-6(4), A-7-5(2), A-7-6(2) and A-6(0) using AASHTO system and SC and SM using ASTM-USCS
The physical characteristics and combustion performance of briquettes produced from four lignocellulosic materials and its admixtures using a 5-ton HBP with a rectangular mould had been carried out
