Open Access Short Research Article

Evaluation the Software Tools Quality to Thesaurus in the Implementation of a Controlled Media Art Vocabulary

Miguel Angel Marzal, Beatriz Ríos, Diego Ferreyra

Journal of Engineering Research and Reports, Page 1-12
DOI: 10.9734/jerr/2019/v9i317019

In this project, he develops the evaluation of seven thesaurus software tools, in the implementation of a controlled vocabulary, for the CAAC (Collections and Archives of Contemporary Art of the Faculty of Fine Arts of Cuenca, UCLM) in collaboration with UC3M; framed in the "Media Art vocabulary" project. For the conservation of artistic products as digital objects of the museum of Cuenca, Spain. The Construction and application of the thesaurus, Web implementation, publication of its terms as Linked Data, using TemaTres Software. A customized method is used combining quality, usability and semantic web techniques. A method was designed to evaluate the characteristics of each of the tools. Such as the availability of download, easy of access, use, learning, deployment on the server, sharing, and exchange of data, and free use. This study is a part project to Vocabularies for a Media Art Archives and Collections Network. This project establishes the scientific and methodological convergence of two research teams, one from Humanities, Art and Fine Arts, the other from Documentation, with a support of Computer Science and Audiovisual Communication. The importance of project progress lies in metadata labeling, identification by descriptors of the specific thesaurus, guarantee of semantic reuse of content, interoperability for a network of Media Art archives and collections, its digital continuity and dissemination in virtual spaces Wide projection. Winning the TemaTres tool, the thesaurus was implemented in the period from April to July 2019.

Open Access Original Research Article

Hybrid-modelling of Mechanical Properties and Thermo-mechanical Behaviour of Chopped Strand Mat Reinforced Thermoset Composites

Cornelius Ogbodo Anayo Agbo

Journal of Engineering Research and Reports, Page 1-14
DOI: 10.9734/jerr/2019/v9i317015

The concern of this paper is to develop simple workshop application models for predicting the mechanical properties and the evaluation of the thermo-mechanical behaviour of chopped strand fibre-mat reinforced thermoset composites. A hybrid of empirical and strength of materials approach was used at macro- and micro-mechanics levels to model the random fibres which were treated as simple bars within the mat preform and the resulting composite material. The model was validated experimentally by testing wet lay-up produced samples with varying fibre volume fractions and they were found to agree well. The toughness modulus of the composite was also modeled using the secant modulus obtained from the sample’s stress – strain curves of uniform material composites produced at different temperature histories. The toughness modulus determined using the new model was compared with that obtained using the area under the same stress – strain curve computed by Simpson’s rule and the results agreed very well.

Open Access Original Research Article

Validation of Calculated Pressure Drop Using Experimental Data with Standard Methods of an Existing Software

Chris M. Wambua, Ogbonna F. Joel, Sunday S. Ikiensikimama, Daniel O. Oyoo

Journal of Engineering Research and Reports, Page 1-10
DOI: 10.9734/jerr/2019/v9i317020

The aim of this research was to determine the pressure drop along a 450 km long multiproduct pipeline. Empirical formulae and quantitative methods were applied in order to establish pressure drop as an operating parameter. Flow rates used were obtained from the daily operation records of two consecutive years and were in the range of 629 – 765 m3/hr. Using four methods, observed pressure drop results when pumping products through the pipeline were as follows: Shell-MIT was 954.5 – 1411.9 bar (gasoline), 1257.6 – 1860.3 bar (kerosene) and 1535.0 – 2270.5 bar (diesel); Benjamin Miller was 0.509 – 0.728 bar/km (gasoline), 0.693 – 0.988 bar/km (kerosene), 0.773 – 1.101 bar/km (diesel); T. R. Aude was 0.590 – 0.841 bar/km (gasoline), 0.814 – 1.161 bar/km (kerosene), 0.907 – 1.294 (diesel); Darcy was 0.578 – 0.857 bar/km (gasoline), 0.703 – 1.042 bar/km (kerosene), 0.858 – 1.272 bar/km (diesel). Simulations using pipe-flow wizard were carried out in order to authenticate the calculated parameters. Results confirmed that Shell-MIT method is only applicable to crude oil pipelines. From comparison of calculated pressure drop, Benjamin Miller’s method was most preferred as it observed the least value within the same flow rate range. Simulation results validated the calculated pressure drop and therefore, calculated Benjamin Miller’s and T. R. Aude’s values are recommended for use in further review study of the said pipeline.

Open Access Original Research Article

Wirebond Process Improvement with Enhanced Stand-off Bias Wire Clamp and Top Plate

Jonathan C. Pulido, Frederick Ray I. Gomez, Edwin M. Graycochea Jr.

Journal of Engineering Research and Reports, Page 1-4
DOI: 10.9734/jerr/2019/v9i317021

New design for a certain issue in semiconductor industry is another way to modify the standard configuration into specified limit or to make a possible solution of the problem.  This paper presents a new modified design for wirebond top plate with a bias platform structure that will maintain a consistent second bond into a leadframe leads with half-etch configuration on quad-flat no-leads (QFN) packages especially in wirebond process. This paper used a side by side comparison to proof that the new design is better than the older design.  With the new specialized wire clamp and top plate design, parts per million (PPM) level performances is improved by almost 90%.

Open Access Review Article

Challenges and Opportunities of Irrigation Practices in Ethiopia: A Review

Anmut Enawgaw Kassie

Journal of Engineering Research and Reports, Page 1-12
DOI: 10.9734/jerr/2019/v9i317016

Ethiopia has been started traditional irrigation practice since ancient time for the aim of subsistence food production. Since 1950’s modern irrigation system was introduced in Awash and Rift Valley basins for production of industrial crops. Government, donors and non-governmental organizations are investing to the development of irrigation systems from small to large scale irrigation schemes. As a result, irrigation is developing rapidly. However, its contribution to the national economy is insignificant when compared to rain-fed agriculture. This review was conducted to investigate the irrigation practice challenges and opportunities in Ethiopia. The extension service was inadequate and not packaged. Credit service bureaucracy like group collateral was constrained to improve irrigated crop production. Water governance was done by water users but interference by the government bodies aggravated water use conflicts. Streams drying, percolation and seepage of water are the most challenges. Irrigation created employment opportunity for household members and the rural community and also improved their income. Therefore, policy makers and development practitioners should improve policies and strategies based on the agro-ecology and socio-economic settings of irrigation areas to overcome the challenges and strengthen the opportunities.