International journal of physical sciences and engineering 2019-12-31T00:00:00+00:00 Prof. Joan Manuel Rodríguez Diaz, Ph.D. Open Journal Systems <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> The linearity of x-ray devices radiation output and its relationship with patient thickness 2019-12-09T17:30:44+00:00 I Gusti Agung Ayu Ratnawati Ni Komang Tri Suandayani Gusti Ngurah Sutapa <p style="text-align: justify;">Utilization of X-rays in the medical field is one way to improve public health. X-rays are one of the applications of radiation for radio diagnostics. X-ray examination using X-rays can provide information about the human body without the need for surgery. In the use of radiation technology it is realized that in addition to its use for radio diagnostics, X-rays harm the environment and living things around them, especially radiation workers. The impact that can result in cancer due to the accumulation of radiation dose exposure received by the body exceeds the specified threshold dose. Therefore safety standard guidelines that contain basic requirements for quality control (Quality Control -QC) must be obeyed. One of the test activities included in the QC program is the linearity test of X-ray radiation output.</p> 2019-11-02T05:13:06+00:00 ##submission.copyrightStatement## Analysis of working conditions to which the triaduct is subjected in Roca Fuerte route - Manta 2019-12-09T17:30:44+00:00 Ana Valeria Palacios Mendoza Carlos Gustavo Villacreses Viteri Edgar Antonio Menendez Menendez <p style="text-align: justify;">In the work, the working conditions to which the triaduct is located in the Rocafuerte - Manta road are analyzed, with vehicle service conditions similar to those of a bridge since they share the same scenario. Despite their similarities, these two civil works, bridges and sewers, have a different structural behavior and design; The bridge sits on supports that are placed from end to end or in an intermediate way, while the sewer has a base that covers the entire area on which it will settle under a concept similar to that of a shoe or foundation slab, it also has with walls on its sides fulfilling the function of walls, which gives a drawer shape to this structure and hence its name. The working conditions of the aforementioned triaduct are analyzed, which are caused by vehicular traffic, earth thrusts, hydraulic flow, seismic load and a filler load that could be placed on the upper road slab that is not present on a bridge and corresponds to a dead load distributed because of the filling.</p> 2019-11-02T00:00:00+00:00 ##submission.copyrightStatement## Distribution of subsurface anomalies in the Muria Peninsula and depth analysis with euler deconvolution 2019-12-09T17:30:43+00:00 Rina Dwi Indriana <p style="text-align: justify;">Muria Peninsula is one of the regions in Central Java that is uniquely formed. The Muria Peninsula was originally separated from Java and is now connected. To complement the studies that have been done before, subsurface analysis using euler deconvolution method is carried out. Gravity data used is satellite data provided free by BGI. The results of the processing produced a residual anomaly which showed a fault that passed in the middle of the peak of Muria towards Mount Genuk. The anomaly depth of Mt. Muria is 1000 m to 2000 m, in the peak area of Muria and Genuk &lt;1000 m, and in the east and west of the study area the anomaly depth is more than 2000 m. Euler deconvolution index 0 illustrates the body boundaries of Mt. Muria and Genuk in the form of dike and steep.</p> 2019-11-06T04:34:30+00:00 ##submission.copyrightStatement## Design and construction of a cold production simulator system: chiller 2019-12-09T17:30:43+00:00 Ricardo Fabricio Muñoz Farfán Telly Yarita Macías Zambrano Vicente Paúl Zambrano Valencia Victor Manuel Delgado Sosa <p style="text-align: justify;">The design and construction of a cold production system from the ice water submitted by a mechanical direct expansion system contributing to the development of knowledge in the area of air conditioning were carried out. Among the technical design parameters, a direct expansion system with cooling capacity of 9000 BTU/Hrs, R134 refrigerant gas to a turbine for the work of the Fan Coil of ½ Hp of force 220 V was selected, as was the fan motor of the cooling tower as fundamental means for heat transfer. The recirculation pumping system is carried out by pumps of 0.37 kW of power and a maximum flow of 40 l/min. For both the evaporator sump (cold) and the condenser sump (hot). The work stage is given in two independent circuits, the Fan Coil system is connected to the evaporator sump and the cooling tower, in turn, is connected to the condensation system for proper operation and achieve condensation temperatures of 35 ° C and in case of having water requirements in the cold sump, the tower is connected by means of an electromagnetic valve for its supply.</p> 2019-11-25T05:40:51+00:00 ##submission.copyrightStatement## Implementation of adobe captivate program in developing multimedia module for Alas Kedaton Monkey Forest Bali 2019-12-09T17:30:42+00:00 I Gede Putu Adhitya Prayoga Muhammad Rusli <p style="text-align: justify;">This study aimed at 1) implementing an adobe captivate program in developing a multimedia module for Alas Kedaton Monkey Forest Bali, and 2) evaluating the quality of the developed module through a Likert Scale questionnaire. Delphy method proposed by Rusli <em>et al.,</em> (2017) is applied by the researchers to conduct step-by-step instructions. The steps are 1) define the instructional goals and learning objectives, 2) investigate the results of existing module, 3) specify the output format, budget, and timeline, 4) determine the content, learning activities, and assessment strategies, 5) develop the evaluation strategies, criteria, and instruments to assess the effectiveness, 6) develop the flowcharts and storyboard, 7) develop the prototype, 8) conduct the formative evaluation, 9) complete the design.&nbsp; As a result, the module contains some displays. They are 1) Initial display, 2) Menu display, 3) General information display, 4) News display, 5) Events display, 6) Gallery display, 7) Guidelines display, 8) Quiz display, 9) Contact information display. Then, the module was tested in order to determine whether it has good quality or not. 30 respondents were asked to fill the Likert Scale questionnaire.</p> 2019-11-26T03:40:23+00:00 ##submission.copyrightStatement##