This paper aims to identify the causes of package thickness related defects in compression mold process. Related defects include wrong package thickness, exposed wire and/or die and mold bleed out. There are three scenarios why package thickness problem is encountered in compress...
Open access
Research Article10.9734/jerr/2020/v16i117155
In this preliminary study, kenaf core fiber (KCF) was utilized as a natural filler for the preparation of the gellan gum/KCF biocomposite films. The films were prepared by casting gellan gum solutions containing glycerol and KCF, followed by gelation and drying. The weight ratio...
Open access
Research Article10.9734/jerr/2020/v16i117156
The present study has investigated the role of nano-SiC on microstructure and tribological properties of SiC/Cu nano-composite. The nano-composite powders have been cold compacted under a constant pressure of 480 MPa and sintered at 8600 C under argon gas for 2 h. SEM-EDS and XRD...
Open access
Research Article10.9734/jerr/2020/v15i417153
This work is discussed how to differentiate between two tricky models for sand stone formation by using the pressure transient analysis PTA for three Wells which are distributed in south, middle and north of X field. In the derivative curve these two models have the same sequence...
Open access
Research Article10.9734/jerr/2020/v15i417151
Economic analysis of gas turbine compressor inlet air precooling is based on the economical evaluation (maintenance, operations and personnel costs) of the various precooling systems used to improve the performance of gas turbine operational in Nigeria energy utility sector. The...
Open access
Research Article10.9734/jerr/2020/v15i417152
Remediation of crystal violet (CV) dye aqueous solution was attempted using acid activated raphia hookeri seeds (AARHS) as adsorbent. Adsorption equilibrium and kinetics of CV dye uptake onto AARHS were examined in series of experimental runs, and effects of contact time and init...
Open access
Research Article10.9734/jerr/2020/v15i417149
The paper focused on the improvement done in leadframe design to address the copper (Cu) burrs defect in assembly manufacturing. Newly qualified device struggled to hit the target yield due to the said Cu burrs defect. A holistic approach through why-why analysis was performed b...
Open access
Research Article10.9734/jerr/2020/v15i417150
This research was undertaken to determine the effects of corrosion on material performance using mild steel and Aluminum as selected material in seawater media. The result from the experiment showed higher corrosion rate in uncoated mild steel coupon as higher corrosion rate rang...
Open access
Research Article10.9734/jerr/2020/v15i317148
Although corona discharge is notorious for its detrimental effects, it is also used in many beneficial practical applications. Despite the existence of a variety of sophisticated theoretical and experimental methods for investigating corona discharge, we explore yet a much simple...
Open access
Research Article10.9734/jerr/2020/v15i317146
This study aims to study the influencing factors of traffic accidents in undersea tunnels and establish a prediction model of undersea tunnel traffic accidents. Through face-to-face inquiry and telephone survey, the relevant information of drivers who had traffic accidents in Jia...
Open access
Research Article10.9734/jerr/2020/v15i317147