The temperature increase causes a heating of the line conductors which is at the origin of the tension drops and the losses joule increases in line which cause a dilation of the line conductors. In this paper, we investigate of the ambient temperature influence on some quantities...
Open access
Research Article10.9734/jerr/2019/v7i116963
Semiconductor packages using solder balls as interconnect to the printed circuit board (PCB) are very popular especially in mobile products like smart phones. Recent requirement to make the package much thinner is very challenging. The solder ball collapse height after the solder...
Open access
Research Article10.9734/jerr/2019/v7i116962
A study of the prevailing management of municipal solid waste (MSW) generated in Ado Ekiti, a city in the southwest of Nigeria was undertaken using desk and field studies. The composition of the MSW derived from on-site waste sampling comprised plastics (28%), food (26%), paper/c...
Open access
Research Article10.9734/jerr/2019/v7i116961
Irrigation is of major importance in many countries. It is important in terms of agricultural production and food supply, the incomes of rural people, public investment for rural development, and often recurrent public expenditures for the agricultural sector. Nigeria’s irrigatio...
Open access
Research Article10.9734/jerr/2019/v7i116960
Using replacement for cement to assure sustainability is critical as the raw materials (limestone, sand, shale, clay and iron ore) used in making cement are depleting. The use of agriculture waste byproducts to replace cement is becoming an economic option. Rice husk ash (RHA), r...
Open access
Research Article10.9734/jerr/2019/v7i116959
Wafer passivation or the protective layer of the internal circuitry of the die plays a major role of providing protection and the isolation of electrical stability of the active circuit on the top area of the wafer. Passivation is normally a screen of an oxide layer on the surfac...
Open access
Research Article10.9734/jerr/2019/v6i416958
In our universe, there is a presence of random bit of disorder in every field that has to be contemplated and understood clearly. This random bit of disorder in a physical system is known as noise. Noise in the field of statistics can be defined as an additional meaningless infor...
Open access
Research Article10.9734/jerr/2019/v6i416957
The design of water resources engineering control structures is best achieved with adequate estimation of rainfall intensity over a particular catchment. To develop the rainfall intensity, duration and frequency (IDF) models, 25 year daily rainfall data were collected from Nigeri...
Open access
Research Article10.9734/jerr/2019/v6i416956
Aims/ Objectives: Multi-regime fundamental models use two or more equations to describe the association among the main maroscopic traffic variables encountered in traffic analysis. The paper investigates specific properties of some multi-phase speed-density equations. Methodolog...
Open access
Research Article10.9734/jerr/2019/v6i416955
The axial strength of reinforced concrete columns is enhanced by wrapping them with Fiber Reinforced Polymers, FRP, fabrics. The efficiency of such enhancement is investigated for columns when they are subjected to repeated lateral loads accompanied with their axial loading. Th...
Open access
Research Article10.9734/jerr/2019/v6i416954
The major pollutant induced by pipeline failure in Oil and Gas industry has been mitigated over the years using non-destructive techniques like liquid penetrant, magnetic particles, radiographic, ultrasound and eddy current testing. The eddy current technique’s advantage over the...
Open access
Research Article10.9734/jerr/2019/v6i316952
The main objectives of the project was to develop a monitoring system that displays the real-time level of the garbage inside the garbage bins using the ultrasonic sensor, a module the notifies the admin when it reached the maximum level of the garbage’s inside the garbage bin th...
Open access
Research Article10.9734/jerr/2019/v6i316953
Knowledge of friction coefficient of agricultural commodities on various structural surfaces is imperative in the design and material selection for postharvest handling, transportation, processing and storage equipment. This paper presents the friction coefficients of local food...
Open access
Research Article10.9734/jerr/2019/v6i316951
To achieve a defined workability, strength and durability in construction works, concrete mixes are designed and this is done towards the selection and proportioning of constituents to produce a concrete with pre-defined characteristics both in fresh and hardened states. This stu...
Open access
Research Article10.9734/jerr/2019/v6i316950
The aim of this research is to investigate experimentally the relationship between free swell, plasticity index of expansive soil found in greater Cairo City Suburbs, Egypt with swelling pressure of mentioned soil. Predicting Swelling Pressure of any soil is a time consuming and...
Open access
Research Article10.9734/jerr/2019/v6i316948