International journal of physical sciences and engineering https://www.sciencescholar.us/journal/index.php/ijpse <p style="text-align: justify;"><strong>IJPSE</strong>&nbsp;is published in English and it is open to authors around the world regardless of the nationality. It is currently published three times a year, i.e. in&nbsp;<em>April</em>,&nbsp;<em>August</em>, and&nbsp;<em>December</em>.&nbsp;&nbsp;</p> Universidad Tecnica de Manabi en-US International journal of physical sciences and engineering 2550-6951 Challenges and technical requirements for integration of renewable energy sources in Cuban electric system https://www.sciencescholar.us/journal/index.php/ijpse/article/view/190 <p style="text-align: justify;">The decision of the Cuban Government to massively introduce Renewable Energy Sources (RES) as a way to change the energy matrix, and in particular, the electricity matrix, is presented as an opportunity to introduce not only sources of energy friendly with the environment, but also make the contributions that, without limiting the development of the country, respond to the UN Millennium Development Goals (UNMDG). However, the large-scale use of RESs in an electrical system such as Cuba, isolated and not interconnected to other systems, can have a group of challenges that must be taken into consideration when it is exploited, since it does not incorporate only new technologies, some of which depend on weather conditions such as solar, wind and hydro technology for the production of electricity, but allow us to think about the introduction of emerging technologies that can increase the penetration of RES in the electrical system and introduce new management concepts, both territorially and nationally. The present work reflects on this, from some experiences that have been analyzed in different research works carried out at CIPEL, plus other international experiences.</p> Miguel Castro Fernandez Miriam Vilaragut Lanes Miriam Lourdes Filgueiras Sains de Rozas Ariel Santos Fuentefria Maria Rodriguez Gamez ##submission.copyrightStatement## http://creativecommons.org/licenses/by-sa/4.0 2018-09-11 2018-09-11 2 3 1 9 10.29332/ijpse.v2n3.190 Energy analysis for designing photovoltaic power plant in building of the faculty of mathematics https://www.sciencescholar.us/journal/index.php/ijpse/article/view/192 <p style="text-align: justify;">It presents an analysis linked to one of the sustainable energy alternatives that are currently being adopted with worldwide success. Putting the field research method into practice. The results of a study related to an application of technological innovation to reduce the amount of the electricity bill in the building of the Faculty of Mathematical, Physical, and Chemical Sciences (FCMFQ), by introducing photovoltaic technology connected to the network of the low tension of the institution. The results of the study of load and hourly consumption of energy of the entity are shown and an own methodology is deployed for the technological design of a photovoltaic power plant connected to the network, which can avoid the consumption of energy of the conventional network, reducing the amount of the electric bill of the faculty, managing to reduce losses, improve the quality of electric service and reduce CO2 emissions into the atmosphere.</p> Lenin Agustin Cuenca Alava Guillermo Antonio Loor Castillo Julio Cesar Mera Macias Julio Cesar Guaman Segarra Lucio Alfredo Valarezo Molina ##submission.copyrightStatement## http://creativecommons.org/licenses/by-sa/4.0 2018-09-12 2018-09-12 2 3 10 22 10.29332/ijpse.v2n3.192 Utilization of atmega328 PIR and microcontroller sensors to improve CCTV online performance https://www.sciencescholar.us/journal/index.php/ijpse/article/view/182 <p style="text-align: justify;">A device that can increase security against theft has been made, thus reducing public anxiety to leave their home when the house is empty, especially for a long time. Online CCTV that has been equipped with a PIR sensor, ATmega328 microcontroller, and SIM800L and ISD1820 sound module. The advantages of this system that has been made to have the advantage that not only can be monitored through the monitor screen but can also be seen through a smartphone, another advantage is that the homeowner can prevent theft because the device is equipped with an alarm, if there is movement detected by the PIR sensor in the room, SIM800L will send an SMS that says "There is a movement" to the cell phone number already in the program with the SMS received by the recipient, the homeowner can see whether the movement is a thief or not, if the incoming person is a thief then the SMS recipient can send an SMS reply " on "to turn on the speaker and buzzer. If you want to turn off Buzzer, the homeowner can send an SMS "off".</p> I Ketut Sukarasa I Gusti Agung Putra Adnyana Ita Purnamaimun Husnul Hatimah ##submission.copyrightStatement## http://creativecommons.org/licenses/by-sa/4.0 2018-09-14 2018-09-14 2 3 23 28 10.29332/ijpse.v2n3.182 Digital measuring equipment of meat water connection with copper electrode sensor based on microcontroller AT89S52 https://www.sciencescholar.us/journal/index.php/ijpse/article/view/180 <p style="text-align: justify;">Meat moisture measuring devices can be made using microcontroller AT89S52 based copper electrode sensors. The workflow of the meat content measuring device begins with a copper sensor that detects the level of pork water, the voltage generated by the sensor is passed to the ADC. The voltage received is then converted into digital data in the form of meat content data measured by microcontroller AT89S52. The digital data obtained was then processed by microcontroller AT89S52 and the water content of pork, beef, and chicken meat was displayed on LCD 2x16. The results obtained from three meat samples were pork meat samples of 99.995%, beef samples of 99.994% and chicken meat samples of 99.994%.</p> I Wayan Supardi I Made Satriya Wibawa I Gede Angga Rimawan Arief Laksono Mahendy Risnawati Kunthi ##submission.copyrightStatement## http://creativecommons.org/licenses/by-sa/4.0 2018-09-14 2018-09-14 2 3 29 35 10.29332/ijpse.v2n3.180 Web-based speed monitoring tools https://www.sciencescholar.us/journal/index.php/ijpse/article/view/181 <p style="text-align: justify;">The development of communication technology and science in this globalization era is very rapid. In utilizing this technology using laptops and the internet using Web as a means to monitor wind speed data in real-time. Wind measurement using an anemometer is a field from the weather forecasting agency by making an intermediary tool similar to the one on the weather forecast station using a simple anemometer that is connected to the laptop as a data observer. Anemometer or cup type wind sensor that has 3 cup counter wind speed gauges. In addition to using wind sensors, it is also needed ATmega328 microcontroller, SIM800L, and DHT11 sensors. Besides being able to measure wind speed in real time this tool can also measure air temperature and humidity. Wind speed measurement data can be accessed through a database and web that can be accessed on a server computer.</p> S. Poniman I Wayan Supardi Ni Wayan Dewi Mahayani Made Dwi Artawan I Wayan Wisnawa Saputra ##submission.copyrightStatement## http://creativecommons.org/licenses/by-sa/4.0 2018-09-14 2018-09-14 2 3 36 42 10.29332/ijpse.v2n3.181 Packaging sixto duran ballen and the dam la esperanza https://www.sciencescholar.us/journal/index.php/ijpse/article/view/199 <p style="text-align: justify;">The dam is a reservoir that stores about 450,000,000 cubic meters of water, has multiple purposes allowing flood control, produces irrigation water, for human consumption and shrimp farming in the area center of the province of Manabí. The first studies for the construction of the dam were carried out in the years 1970 to 1975 as a result of the hydrological/economic feasibility plan of the Province of Manabí, and of the integral hydro-agricultural area of the Carrizal Chone Basin. After several preliminary studies with different international firms and with changes of designs in 1992, the Dragados and Constructions SA Company was in charge of the construction of what is now the Manabí water project. It is located in the parish of Quiroga approximately 12 kilometers from the cantonal canton of Bolívar Canton, Calceta, with an extension of 2,500 hectares, with a construction area of 120 hectares and will allow irrigation of 17,000 hectares of the central area of Manabí. The objective of the work is to make an analysis of the construction of the La Esperanza dam. For this, the logical historical method was used, as well as the bibliography search to know the historical construction of the dam, as well as the observation method.</p> Gloria Santana Parrales Beatriz Irene Caballero Giler Maria Shirlendy Guerrero Alcivar ##submission.copyrightStatement## http://creativecommons.org/licenses/by-sa/4.0 2018-09-19 2018-09-19 2 3 43 50 10.29332/ijpse.v2n3.199 Utilization of Bali traditional acoustic tools as physical repellent of bird pest on rice paddy crop https://www.sciencescholar.us/journal/index.php/ijpse/article/view/188 <p style="text-align: justify;">The purpose of this research is to identify the diversity of Bali’s traditional acoustic tools as a physical repellent of bird pest on rice paddy crop that characterizes local Balinese wisdom as well as analyze their existence and possible modification of tools. The method used is survey method through questionnaire and direct interview to farmers (age 60 years and over) in three rice paddy crop centers, namely Tabanan (6 villages), Badung (5 villages), and Gianyar (2 villages) regencies. Based on the survey of 127 respondents, 52 people from Tabanan, 42 from Badung and 33 from Gianyar, it was found that the most common types of Bali’s traditional acoustic tools used to repel bird pest by farmers, in Balinese terms, are <em>kepuakan</em> (91.3%), followed by <em>pindekan</em> (5.5%), <em>pecut</em> (2.4%) and <em>kulkul</em> (0.8%). <em>Kepuakan </em>is more chosen because it is considered more effective and comfortable to use to repel bird pest in rice paddy crop. According to the respondents, the most effective sequence of acoustic tools from high to low is <em>kepuakan</em> (80.3%), followed by <em>pecut</em> (10.2%), <em>pindekan</em> (8.7%), <em>kulkul</em> (0.8 and for the comfort of the use of tools, the order is <em>kepuakan</em> (85,8%). followed by <em>pindekan</em> (9.4%), <em>kulkul</em> (3.9%) and <em>pecut</em> (0.8%). All the traditional tools are the result of handicrafts Bali farmers use natural materials and are a form of the local wisdom of Balinese farmers that are certainly environmentally friendly.</p> I Gde Antha Kasmawan I Wayan Supartha I Nyoman Wijaya Ida Ayu Dwi Giriantari ##submission.copyrightStatement## http://creativecommons.org/licenses/by-sa/4.0 2018-09-20 2018-09-20 2 3 51 61 10.29332/ijpse.v2n3.188 Demand in abdon calderon parish for possible installation of photovoltaic systems https://www.sciencescholar.us/journal/index.php/ijpse/article/view/218 <p style="text-align: justify;">Photovoltaic systems installed in Ecuador benefit from the geographical position of the country, since, being located on the equatorial line, solar radiation is constant throughout the year, varying in the rainy seasons. The objective of this work is to evaluate the possibility of installing public lighting systems using photovoltaic systems in the Abdón Calderón parish due to the difficulties that exist today, thereby helping not only to reduce the country's energy generation problems, but also to reduce the environmental impact and provide autonomy to the inhabitants of the parish. An observational research was carried out, in addition to interviewing the residents of the parish related to lighting in the streets, as a result, it was obtained that in the future investments can be made to introduce the technology, improving with it the quality of public lighting, the environmental and social impacts associated with it.</p> Katherine Lisbeth Carreno Suarez Andrade Garcia Jean Carlos Luis Adrian Saltos Cuenca Jorge Alexander Gonzalez Zambranod Ángel Andrés Arteaga Ponce ##submission.copyrightStatement## http://creativecommons.org/licenses/by-sa/4.0 2018-11-13 2018-11-13 2 3 62 69 10.29332/ijpse.v2n3.218 Pre and post Mount Merapi eruption of free air anomaly in 2010 https://www.sciencescholar.us/journal/index.php/ijpse/article/view/231 <p style="text-align: justify;">Mount Merapi eruption in 2010 was one type of eruption with large scale during the last 100 years. Eruptions that was occurred resulting topographic changes in the peak of Mount Merapi, and the possibility of changing the subsurface structure. The research was part of a large study that has been conducted to assess the subsurface changes of pre-and post-eruption of Mount Merapi in 2010. The study discussed observations of free air anomalies pre and after the 2010 eruption. There were grouped into three periods. Processing of air anomalies was free to use using the 2<sup>nd</sup> orde calculation method. The results obtained were the changes in the contours of the FAA Mount Merapi in 1988, 1998, and 2011 as a result of topographic changes that occurred in the peak area and the alleged dynamics of the surface. The dynamics at Mount Merapi in the 1988 to 2011 period occurred in the northwest, southeast, east, and northeast of the study area and southeast of the peak of Mount Merapi.</p> Rina Dwi Indriana Kirbani Sri Brotopuspito Ari Setiawan Tarcisius Aris Soenantyo ##submission.copyrightStatement## http://creativecommons.org/licenses/by-sa/4.0 2018-12-13 2018-12-13 2 3 70 76 10.29332/ijpse.v2n3.231 Application design in determining the shortest route using tabu search algorithm https://www.sciencescholar.us/journal/index.php/ijpse/article/view/233 <p style="text-align: justify;">This research designed a website application using Tabu Search Algorithm. We applied the Queuing method to find the shortest distance. Applications with this algorithm can provide the fastest route in the experiment of searching the shortest distance. We conducted this research by applying the examination in Rote Island, Indonesia. On the island, we examined the shortest distance from a starting point to another tourism place. In another side, this system utilized Google Map services to retrieve data about the distance between locations to another location with driving mode. The Google Maps service application is received in the form of translated <em>JavaScript Object Notation (JSON),</em> in order to be used as data and parameters in executing tabu search algorithms. The system was built using web-based through <em>Hypertext Preprocessor (PHP)</em> programming language, <em>HyperText Markup Language (HTML),</em> and Javascript, so it can be accessed and run by all devices that run the browser.</p> Lita Alfriany Ndoloe Nelci Dessy Rumlaklak ##submission.copyrightStatement## http://creativecommons.org/licenses/by-sa/4.0 2018-12-14 2018-12-14 2 3 77 91 10.29332/ijpse.v2n3.233