Poultry industry’s development in the past two decades and the need for increased animal protein sources in the hot regions of the world, require the need to develop housing system that is thermally controlled for optimal production. The research was carried out at Federal Univer...
Open access
Research Article10.9734/jerr/2020/v10i317042
The subgrades of three different rural roads alignment were investigated with the aim to determine their geotechnical properties. The three roads are on two different geologic terrains. Two of the roads, the 18 km Yahe-Waniye-Wanakom road and the 6 km Okpoma-Okuku road are on Cre...
Open access
Research Article10.9734/jerr/2020/v10i317041
In every new technology developed and introduced to the manufacturing floor, particularly in the wafer preparation, entails problems that later induce defects affecting the wafer yield. This paper discusses the optimization of wafer preparation parameters, particularly the tensio...
Open access
Research Article10.9734/jerr/2020/v10i317040
Draft requirements of two animal – drawn (IAR) weeders operating on loam soil were determined in the study. The implements include a straddle row weeder and an emcot attached rotary weeder evaluated under the same soil conditions, using a pair of white Fulani breed of oxen. The a...
Open access
Research Article10.9734/jerr/2020/v10i317039
Aims: To model tomato water productivity under deficit sub – surface drip irrigation and grass mulch densities using Aquacrop model. Study Design: The study was factorial experimental with twelve treatments. Place and Duration of Study: Tatton Agriculture Park, Egerton University...
Open access
Research Article10.9734/jerr/2020/v10i317038
The relentless advancement and trends on thinner packages have become the focus in the semiconductor manufacturing industry. The requirement of thinner packages also demands a thinner vertical structure of the semiconductor electronic design. As a major contributor on the vertica...
Open access
Research Article10.9734/jerr/2020/v10i217037
Local welders in Nigeria are prone to poor quality weldment because of their lack of welding technical skills. When these local welders carry out their welding operation, the welded joints are considered to be good enough because the metal materials welded together are seen to be...
Open access
Research Article10.9734/jerr/2020/v10i217036
Fossil fuels amount became very limited due to their terrific use. Also, the fossil fuels dependence has brought many environmental complications. Vehicles using compressed air as a fuel are considered like a dream and have involved many considerations. The compressed air engine...
Open access
Research Article10.9734/jerr/2020/v10i217034
This paper presents an improvement in the design of quad flat no-leads (QFN) leadframe material to reduce the amount of unit rejection due to excessive leadframe warpage observed after die attach curing (DAC) process. The enhanced leadframe design includes modification through in...
Open access
Research Article10.9734/jerr/2020/v10i217035
Architecture and urbanization are representatives of our architectural and cultural histories. Many of the lost historical characteristics can come out of the back door citing such representatives. Reconstruction and restoration are a set of activities that deal with the body and...
Open access
Research Article10.9734/jerr/2020/v10i217032
The paper offers an improvement for leadframe devices to mitigate the occurrence of package chipping rejection during package mechanical singulation. The discussion provides a specialized design of mold chase for mold encapsulation process, and an augmented mechanical cutting tec...
Open access
Research Article10.9734/jerr/2020/v10i217033
Die attach film (DAF) voids detection is one of the challenges during the introduction of non-conductive adhesives for integrated circuit products affecting production control robustness and detection. In this paper, a specialized tool capable to distinguish and quantify the amou...
Open access
Research Article10.9734/jerr/2020/v10i117031
In this study, the flow units of reservoirs of Akos field have been computed with the Stratigraphic Modified Lorenz plot. Cumulative flow capacity and cumulative storage capacity were used for constructing the Stratigraphic Modified Lorenz Plot (SMLP). The flow capacity and stora...
Open access
Research Article10.9734/jerr/2020/v10i117030
The semiconductor industry is becoming more inclined to thinner integrated circuit (IC) packages. Thinner packages with thin wafer or die prefer the die attach film (DAF) technology as the die adhesive material solution. As the wafer goes thinner, it becomes more of a challenge i...
Open access
Research Article10.9734/jerr/2020/v10i117029
The aim of this research is to investigate numerically the behavior of strip footings resting on Sabkha soil reinforced using two methods. Firstly, using a layer of compacted sand reinforced with random distributed fibers beneath footing. Secondly, using a layer of compacted sand...
Open access
Research Article10.9734/jerr/2020/v10i117028