ISSN: 2456-2734

                    Curent issues

Welcome to IJPERA! International Journal of Precious Engineering Research and Applications

Current Issue (Volume 02 - Issue 04) (September 2017)


Title:
Innovation in coffee post-harvest: development of an automation system for the drying process
Authors:
Juan Pablo Pena Arenales. || HeimarHernan Coronado Hernandez. || John Jairo Serrato Gonzalez
Source:
International Journal of Precious Engineering Research and Applications, pp 01-09, Vol 02 - No. 04, September 2017
Abstract:
Innovation is one of themost important elements in order to obtain success in any business. In this paper, firstly we will show the importance of innovation and then its application with technological development, based on a mechatronic system for automation in the drying step of thecoffee post-harvest process. This implements a design methodology in real environments with real coffee producers, in order to generate innovation and help to obtain quality in the final product. Every step of the methodology applied is explained including designs, implementation and validation phases.
Keywords:
Agriculture Innovation, Coffee Automation, Coffee drying, Specialty coffee, Technological Development.
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Title:
Application of Image Processing Technique on Mangoes Color Changes Identification during Degreening Process
Authors:
Amelia Gustina || Amin Rejo
Source:
International Journal of Precious Engineering Research and Applications, pp 10-14, Vol 02 - No. 04, September 2017
Abstract:
The objective of this research was to analyze color changes on mangoes using image processing and to know the relationship between color changes on mangoes and physical and chemical properties of mangoes during degreening process. The research used descriptive method with the presentation of data in graphics. Parameters observed were hardness, total sugar, total acid, and percentage of colour. The result showed for 96 hours of degreening, the percentage obtained of yellow on mangoes before degreening was 17.06% and after degreening it increased to 30.76%; hardness decreased from 0.04781 kgf to 0.04727 kgf ; total sugar content increased from 12.51% to 14.05%; and total acid levels decreased from 0.463% to 0.287%. The percentages of yellow color with hardness, total sugar and total acid which have a linear relation to the value of R2 were 0.989, 0.989 and 0.979, respectively.
Keywords:
Image processing, color, degreening, mangoes, properties.
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Title:
Tradition And Updates In Human Resources Training System In Preuniversitary Institute
Authors:
Maria-Magdalena Dorcioman
Source:
International Journal of Precious Engineering Research and Applications, pp 15-18, Vol 02 - No. 04, September 2017
Abstract:
Through studies and research carried out in the framework of this paper, an attempt was made to highlight the need for professionalization of teaching activity, starting from the current situation and where we want to go. For starters I made a parallel between profession-like theoretical object unlike profession-as the object of everyday practice. Considering the fact that the teaching profession has an extremely powerful human dimension, involving not only knowledge and skills but also attitudes, values, ethos, in a word, a professional conscience I approached the size of the teaching profession and the training system. The current and future training of teaching staff in Romania following the Directorates-General of the European Union are considering the importance of professionalization of a career in teaching, in which teachers continuous training is regulated and mandatory. In this context, we deemed it necessity to introduce the competencies required for the teaching profession, as well as the acquisition of additional skills such as: computer-assisted teaching, teaching in foreign language, educational counselling and career orientation, adult education, etc. Finally, we presented our conclusions and proposals.
Keywords:
Profession, competence, job, expert teacher, human dimension, creative dimension, European commission, curriculum, educational market, formation system, competences' areas
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Title:
Development of graphical user interface based DOS environment for USB to RS232 converter
Authors:
Dzufi Iszura Ispawi || Ahmad Nurrizal Muhammad || Mazlina Mansor || Bibi Sarpinah Sheikh Naimullah || Noor Azland Jainudin || Ishak Annuar
Source:
International Journal of Precious Engineering Research and Applications, pp 19-23, Vol 02 - No. 04, September 2017
Abstract:
This paper discussed on the successfully developed of graphical user interface (GUI) by QBasic for transmitting asynchronous binary data of ASCII character via USB to RS232 converter to max232. The system consists of Personal computer (PC), QBasic software, USB to RS232 converter, driver software for USB to RS232 converter, and Max232. The oscilloscope is used to display the transmitted asynchronous binary data by GUI to input and output pins of max232, respectively. The American standard code for information interchange (ASCII) code character from PC is transmitted via keyboard using serial communication protocol. The result showed the transmitted w characters observed at input and output pins of max232, respectively. The result showed the voltage level of asynchronous binary data w at the input and output pins are in RS232 format and TTL format, respectively. The transmitted asynchronous binary data of ASCII character via USB to RS232 converter conveyed binary data in RS232 voltage level while Max232, binary data is in TTL voltage level.
Keywords:
USB to RS232 converter, GUI, serial communication, QBasic, max232
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