Authors:Iván Mesias Hidalgo Cajo, Saul Yasaca Pucuna, Byron Geovanny Hidalgo Cajo, Pedro Rolando Salazar Andrade, Diego Patricio Hidalgo Cajo Abstract: The objective of the research is to develop a network system based on PLC RS-485T, to monitor a mechatronic equipment called Assembly of Parts, in the Industrial Automation Laboratory of the School of Systems Engineering of the Polytechnic School of Chimborazo. The research was developed based on the scientific method, and two Twido 20DTK PLCs were used, one PLC as Master and another PLC as Slave. The software for the monitoring of the network was carried out in the software called Labview version 7.1 and the TwidoSoft version 3.5 for the PLC coding. The communication between the different Twido 20DTK PLCs was obtained under the Labview 7.1 monitoring graphical interface; applying the data transfer in the RS-485T PLC network, improving the data transmission speed and avoiding that they are lost during the transmission, obtaining 70% the Ethernet network and 95% the industrial network, checking the reliability 75% in the Ethernet network and 100% in the industrial network, the speed in 75% in the Ethernet network and 100% in the industrial network and prevents the loss of information by 50% in the Ethernet network and the 100% in the industrial network; demonstrating the values obtained in an RS-485 Ethernet network. The developed system is applied sequentially, each time the sensor detects movement of an object (piece of the pallet) during the assembly, which was reflected in the user interface, changing color. In addition to the use of Modbus technology, the integration and communication of the PLC's was achieved, thus improving learning by observing in the computer the process of assembling parts. PubDate: 2018-03-31 Issue No:Vol. 14, No. 7 (2018)
Authors:Mohamed Mahamoud Charahabil, Leonard Elie Akpo Abstract: The geographical position of the Comoros archipelago conditions an environment conducive to continental biological invasions. In the current context of climate change, with the repeated arrival of strong winds from nearby coasts, the phenomenon is likely to worsen. This study presents the characteristics of the biological invasion of Psidium. cattleyanum var. Coriaceum in Grande-Comore using quantitative structural data of its population and modeling of its ecological niche. The uses of the species and its socio-economic importance were defined by means of a population survey. The overall results revealed the species' invasion status through density, relative frequency, regeneration potential and horizontal distribution model. The modeling of its ecological niche has shown that all the wooded areas of the island are potential sites of the species. Socioeconomic surveys have shown that Psidium. Cattleyanum is a multipurpose species well appreciated by the people. The fight against this invasion very common to all the islands of the southwest of the Indian Ocean faces, in this island of the archipelago of Comoros, a conflict of interest between the conservation of biodiversity and satisfaction the needs of these populations. This work provided reference frames that would allow a better knowledge of the phenomenon for better management. PubDate: 2018-03-31 Issue No:Vol. 14, No. 7 (2018)
Authors:Myra C. Britiller, Paul Reinald Garcia, Aimee M. Amponin Abstract: The study assessed the changing learning needs of Saudi student nurses as input to nursing curriculum. It identified the specific changing learning needs in three different domains: cognitive, affective, and psychomotor. Also, responses of faculty members to the students’ changing learning needs were determined. Relationship between the changing learning needs of students and responses of faculty members proposed inputs to nursing curriculum. The study was a descriptive cross sectional and correlational survey method. The respondents were 100 student nurses and interns, and 13 nursing faculty members of Al Ghad International Colleges for Applied Medical Sciences purposely chosen based on research criteria set by the researchers. An adapted questionnaire was used and translated its content into Arabic language. Several ways were carried out to achieve content validity before it was submitted to the research committee of the colleges and respective deans for distribution approval. A total of 100 students and 13 faculty participated in the study purposely chosen based on the criteria set by the researchers. Results were analyzed through quantitative statistics. The findings revealed that Saudi student nurses’ cognitive changing learning needs were focused on the application of student-learner approach in the classroom and educational field trips to different hospitals and health care settings. As to affective, Saudi student nurses’ topped those needs for recreational activities to build confidence and self-esteem, stress management techniques and group activities for active participation. In terms of psychomotor, the highest changing learning needs were the availability of learning materials specific to students’ needs and challenging programs outside the classroom that promotes learning. The response of faculty members based on the changing learning needs of student nurses was to attend seminars and conferences to broaden knowledge on their field of specialization to provide students with new knowledge and skills. Psychomotor domain is significant to the changing learning needs of student nurses. The study concluded that there is a need to modify and redesign the existing nursing curriculum based on the changing learning needs of student nurses. Continuing education, training and professional development of nursing faculty members is vital to meet the changing learning needs of Saudi student nurses. PubDate: 2018-03-31 Issue No:Vol. 14, No. 7 (2018)
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