Fading in a wireless channel has negative effects on the performance of communication systems. Bell Laboratories layered space-time (BLAST) has been used to get a high data rate while space-time block codes (STBC) have been used to get a low bit error rate (BER) performance. Unde...
Open access
Research Article10.9734/jerr/2021/v20i1017396
Repair and maintenance cost is considered as one of important items for machinery management and selection especially agricultural tractors. The present study was carried out in Dongola area for tractor repair and maintenance costs estimation. The data was collected from records...
Open access
Research Article10.9734/jerr/2021/v20i1017395
The problem of laminar boundary layer flow of power-law fluid over a continuous moving surface in the presence of a transverse magnetic field with velocity slip was investigated. The governing partial differential equations for the flow and heat transfer were transformed into non...
Open access
Research Article10.9734/jerr/2021/v20i1017394
The Travelling Salesman Problem (TSP) is one of the main routing problems in the Logistics and Supply Chain Management fields. Given its computational complexity, metaheuristics are frequently needed to solve it to near-optimality. In this aspect, Genetic Algorithms (GA) are prom...
Open access
Research Article10.9734/jerr/2021/v20i1017393
Possible ways of solving the main problems arising in development, manufacture and calibration of high-sensitivity Illuminance meters are considered. Methods of reducing the lower limit of measurement of Illuminance to 10-5 lux are proposed. Errors of correcting light filters of...
Open access
Research Article10.9734/jerr/2021/v20i1017390
Emergency Vehicles (EV) such as ambulances, fire fighting vehicles, Road safety vehicles and other emergency vehicles encounter delays on their missions at traffic light control points due to traffic jams. The direct consequence of these delays results in unwarranted loss of live...
Open access
Research Article10.9734/jerr/2021/v20i1017391
Currently, epoxy paint is being widely used in the industry. Nanotechnology can create many small nanometer-sized materials with many applications, it has brought many outstanding properties to epoxy paints. The aim of this study is to investigate the effect of TiO2 nanoparticles...
Open access
Research Article10.9734/jerr/2021/v20i1017392
Remote sensing technologies have a direct impact on gaining structural damage information due to their powerful flexibilities, such as wide field of view, non-contact, low cost, and fast response capacities. It is because remote sensing is often applied to monitor near-real-time...
Open access
Research Article10.9734/jerr/2021/v20i1017388
Mechanical modeling of integrated circuit (IC) dies is commonly performed using the mechanical properties of the bulk silicon material. However, modeling results such as die deflection and the actual results were observed to have significant difference. This paper discusses the i...
Open access
Research Article10.9734/jerr/2021/v20i1017389
Wirebonding process is one of the most challenging assembly manufacturing process in semiconductor packaging industry. This paper discussed the wirebonding challenge and the solution to resolve the wire to die shorting on reverse stitch on ball (RSOB) and prevent irregular loopin...
Open access
Research Article10.9734/jerr/2021/v20i1017387
There can never be any time in the history of mankind that issue of community security secures the rapt attentions of all and sundries. It is believed in many security circles that the upsurge may not be unconnected from craves for materialism, ubiquitous social media technologie...
Open access
Research Article10.9734/jerr/2021/v20i1017386
This paper presents the reformation and fabrication resolved on the wire clamp and top plate (WCTP) design to eliminate the presence of lead finger bouncing resulting to high rejection of non-stick on leads (NSOL). Problem experienced was that the hollow or half-etched portion of...
Open access
Research Article10.9734/jerr/2021/v20i1017385
Cutting tool is one of the most important instruments in production. It is used for machining of different components on machine tools. A material is cut into a chip to incur the desired work piece surface currently used in engineering various cutting tools. The directions of dev...
Open access
Research Article10.9734/jerr/2021/v20i1017384
The Kingdom of Saudi Arabia is located in a low to medium earthquake zone. Therefore, the inclusion of seismic loads in building design was limited to specific building structures such as highrise and midrise in the past decades. Recently, the development and adoption of the Saud...
Open access
Research Article10.9734/jerr/2021/v20i1017383
Strips that have undergone tape saw singulation will not be completed without the ultraviolet (UV) curing process. To detach the units from the tape, the singulated strips have required further assistance to be loaded for UV cure. Otherwise, hard-to-pick units will be the outcome...
Open access
Research Article10.9734/jerr/2021/v20i1017382