International journal of physical sciences and engineering
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Aquifers selection based on geoelectric method data in the framework of drilling wells: A case study on international hospital project in Nyitdah Tabanan Bali
Get PDFThe selection of aquifers based on Geoelectric Method data in constructing drilling wells was discussed in the present study. The research was conducted at the International Hospital Project in Nyitdah Tabanan Bali. The research position was around 8,5736 LS 115,1215 LE. Before the study was conducted, a well drill (well 1) has been made. The results showed that there were two types of aquifers, namely unconfined aquifers and unconfined aquifers. Related to this study, well 1 took water in the unconfined aquifers of 4 m depth. If the water kept taken for a long period, the quality and quantity of the water would be worse since well 1 was unconfined aquifers that took surface water. This would adversely affect the hospital building being built. The land around the building would be hollow due to the water loss, and the building would become unstable. Another drill well (well 2), based on geoelectricity data, can be made on 5,25 m - 18,75 m. In-depth 23 m, it was suspected that unconfined aquifers would have been found in well 2. After being drilled, aquifers were found in 23 m depth. Drilling was kept doing to 55 m depth
Strategy of improving student achievement in English learning through concentration approach
Get PDFThis research is a research about the effect of student mobility in the class on the concentration of learning and its influence on learning achievement. Mobility in the classroom is done through simple interactive learning, which is an effort to invite students to always move and always active in the learning process. Departing from the problem that the concentration of students decreased in line with the length of the lecture and the lack of interaction of students in the class, then made a strategy that allows the concentration of students to stay awake during the lecture process is by improving the mobility of students in the classroom. In order to know the effect of treatment/intervention on the subject condition, there will be a real experimental study using two crossover design. Assessment of quality of learning process done by research 2 cycle, wherein each cycle ended with giving test/questionnaire. The results showed that the concentration indicator consisting of speed, accuracy, and constancy increased significantly after the students improved their mobility in the classroom. Increased concentrations also have a significant impact on student achievement
Utilization of atmega328 PIR and microcontroller sensors to improve CCTV online performance
Get PDFA 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"
Value engineering approach for construction materials selection of irrigation drainage: Case study on project of DAS irrigation drainage improvement at Cengcengan River in Gianyar
Get PDFIn this globalization era, many alternative choices of construction materials. The limited funds available make engineers have to think creatively to choose materials used in order to obtain the cost as efficiently as possible. There are many ways to do the cost efficiency of the project, one of them by doing value engineering. The construction design selection is very important to do because it can show the project quality, as well as produce the development with an efficient and optimal cost. The value engineering approach in the construction field is an organized and creative approach aimed at identifying unnecessary costs. These unnecessary costs are costs that do not provide quality or usability/functionality. The value engineering application is to construct projects has considerable potential savings from the project budget. This study aims to obtain cost savings made during the design phase and irrigation drainage project implementation. The scope of the study in the present study is the wall project on the DAS irrigation drainage improvement at Cengcengan River in Sukawati, Gianyar. This analysis uses the steps of value engineering plan, i.e., information, creative, analysis, development, and recommendation steps. Whereas, the criteria used to evaluate the components/systems included aspects of cost, quality, implementation time, methods, mobilization, availability, and aesthetics
Flow of guineal river within the framework of local energy development
Get PDFAlthough currently, more than 70% of the energy generated in Ecuador is of hydraulic origin, in the province of Manabí the source of basic generation is still thermal, with a high cost of kWh generated and with high rates of CO2 emissions to the atmosphere. However, in the territory of the province, several rivers can provide potential water energy that has could use in the generation of electricity. The work shows the results of the analysis of the Guineal River's energy potential, which has was carried out by applying the study of the river flow in 18 sampling points that are close to rural communities where the quality of the electric service has deficiencies. The results obtained were presented in tables that have can be used to generate projects aimed at introducing electricity generation technology, constituting a local development solution to the energy problem
Comparison of studies through laboratory tests to loan material (ballast) of San Jose and AGRE S.A. quarries treated with asphalt emulsion or cement
Get PDFIn the construction of pavement, structures are determined by granular materials treated with asphalt emulsion in the pavements, in the structure of the pavements is very common to find unsuitable materials which generate both in the constructive and economic environment various types of inconveniences. The pavement structures are made up of different layers, each of which fulfills a certain function. The treatment of the material helps to reduce the cost of the pavement structures, obtaining improvements in their behavior and economic results in the construction of the same. What is intended in this research is the treatment of the selected material combined with asphalt emulsion, therefore, that can be used both as a base or sub-base within the pavement structures. For the analysis of the behavior of the selected material, the San José and AGRE S.A quarries were taken, in order to determine their own characteristic variants and thus demonstrate whether stated material meets the technical specifications for incorporation in the construction of the pavement structures
Ballast treated with asphalt emulsion, Megarok and San Jose. AASTHO standards
Get PDFIn the research work, the results obtained at the laboratory level of the lending material (ballast) treated with asphalt emulsion from the quarries "Megarok and San José" are compared, applying the AASTHO standards. The quarries are located in the Picoazá-La Sequita parish of the Portoviejo canton. Samples from both quarries were evaluated in the laboratory and it was possible to carry out tests of natural humidity, Atterberg, granulometric, compaction, and soil bearing capacity (CBR). Based on the results obtained, they were compared by disclosing which of the quarries meets the appropriate conditions within the construction standards and techniques, in order to stabilize the material with asphalt emulsion; in addition to comparing it with the specifications of the AASTHO standards and the MTOP standard. The result was that the materials extracted from the quarries do not meet the technical specifications; but when mixed with the asphalt emulsion, the Megarok material fulfills as type A base
Digital measuring equipment of meat water connection with copper electrode sensor based on microcontroller AT89S52
Get PDFMeat 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%
Demand in abdon calderon parish for possible installation of photovoltaic systems
Get PDFPhotovoltaic 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
Drills forehand training strategy on the stroke of forehand drive ability in tennis
Get PDFThis article describes the effect of training strategy on forehand drills and arm strength on the ability of a forehand drive stroke on tennis. Operationally, the purpose of this research is to know the interaction between forehand drills training strategy and arm strength to the ability of forehand drive on the playing of tennis by observing reality of tennis training pattern of students in Department of Physical Health and Recreational Education, Faculty of Teacher Training and Education, Halu Oleo University who programmed a Tennis course in 2018th even semester. Overall this article attempts to describe its analysis by looking at four main factors that control the path of an object that is being struck through the theories: (1) the speed of hitting the object, (2) the angle at which the power of the object, (3) the force of gravity affecting the object that is being hit, and (4) the effect of aerodynamic power. The technique of analysis that is used in this article is by observing the strength factor of the basic ability of physical condition. In which, the power component is also one of the biometric components that have contributions in improving the components of the overall physical condition