The study of PTC temperature sensor is usually carried out by measuring their resistance over temperature surrounding it and is used to describe the sensor characteristic (R-T curve). Current conventional method to characterize the sensor parameter takes a time-consuming to maintain the temperature on the sensor surface. This research presents a method to determine the sensor parameters of Siem…
Research on syinthesis of activated carbon has been conducted from Eucalyptus pellita wood. Activated carbon was prepared by conventional carbonization. Chemical activation was conducted using the potassium hydroxide and assisted by microwave irradiation. The mass ratio of carbon and KOH is 2:1. The samples were irradiated by microwave iradiation with various irradiation time of 10, 15, and 20 …
This research is aimed to determine electrical conductivity of water of Batang Lubuh river in Surau Tinggi, located in an area of palm oil mill waste disposal PT.IMSB Using experiment method of Wheatstone Bridge . This process begun by having the sample of water of Batang Lubuh river at seven spots of that area before and after waste disposal PT.IMSB, then can be calculated value of resistance,…
This study aims to describe the values of character education in “pertemuan dua hati” by Nh. Dini’s novel which used qualitative descriptive method. Data collection techniques used in this research method is a technique of reading, technical notes, technical literature. In this study, there are three ways to analyze the data: (1) data reduction, (2) Model display, (3) verification conclus…
This study aimed to describe the level of primary school teachers' understanding of the curriculum implementation se Pekanbaru, 2013. The subject of research is a primary school teacher with a total sample of 79 teachers. This research is descriptive quantitative research with survey method. Data showed that the level of understanding of elementary school teachers throughout Pekanbaru on the im…
The aim of this research is to describe the basic skill of teachers in the learning process of IPA at the fifth grade in SDN 11 Pekanbaru city. The method used in this research is descriptive method because the researcher describes objectively and factually about basic skill of learning teachers in the process of IPA learning based on reality in the field. The research is took place at SDN 11 P…
This study to determine whether there is a significant relationship between students read the IV gradation SD gugus 1 Kecamatan Tampan learning Indonesia. This research is a kind of quantitative correlation. Subjects in this study were students in the IV gradation Primary School gugus 1 Kecamatan Tampan with a sampel was of 91 students. Sampling was done randomly with a percentage of 20%. Instr…
This study was conducted because of low yield IV grade social studies student of SD Negeri 63 Pekanbaru, there were many 22 students that achieve criteria minimum were just 7 students (31,80 percen) while the student not able to achieve criteria minimum were 15 students. The purpose of this research to improve outcomes IPA Students class IV Negeri 63 Pekanbaru with implementation model learning…
The background of the problem in this research was the poor students’ achievements in social sciences , it can be seen on students’ social sciences scores. There were 12 of 19 students who had not achieved the achievement standard (63%), while the ones who achieved wer only 7 students (37%) and the average scores of the class was 55,68. The achievement standard that school determines in 65.…
One of the problems in schools is the lack of attention from the teacher to the students' writings. This study aims to determine the ability to use capital letters in the essay description fifth grade students of SD Negeri 1 Pekanbaru. This research is qualitative descriptive. The sampling technique in this research is total sampling. The data collection techniques using the test write (compose…
The research conducted low output IPA students’ class IV elementary school Negeri 65 Pekanbaru. There were many sixteen students that Achieve Criteria Minimum were just six students (37.50%), while the students not able to Achieve Criteria Minimum were 10 students (62.50%) with the main 62.50.The purpose of this research to improve output IPA students class IV Elementary School Negeri 65 Pek…
Based on the analysis of worksheet, it was found that the worksheets that students use less attractive, image colorless and less clear. worksheet rare teachers develop itself in accordance with the conditions and circumstances in the face it let alone implement a character value therein. This research aims to develop character-based worksheet in science subjects are fit for use as a learning to…
A research about prediction of unconfined aquifer in Distrcit Bukit Raya have been done by using finite difference method. The depth of unconfined aquifer data using contour grid District Bukit Raya in 2015 solved numerically by using computer program MATLAB application R2009a version. The aim of this research was to analyze the effect of population growth on the volume of unconfined aquifer in…
Fluorescence imaging has been developed and used as a potential nondestructive method for fruit and vegetable quality assessments. Grading oil palm fresh fruit bunches (FFBs) is a very important step to obtain good quality of crude oil palm for oil palm companies. Fluorescence imaging has not thoroughly been explored for FFB grading. This research was aimed to study the fluorescence intensities…
Aluminum doped ZnO nanorods with various percentage concentrations of Al 0%, 0.5%, 1%, 1.5%, and 2% have been successfully grown on FTO using hydrothermal method at a temperature of 90° C for 8 hours. The FESEM images showed that the geometrical shape of all the sampels was nanorods with hexagonal face shape. The Al 1% doped sample produced the highest density, thickness and uniformity of ZnO …
Global ionospheric scintillation model for low latitude in Indonesiausing observed data of Ionospheric Scintillation Monitoring (ISM) has been validized. The data were collected at ISM Kototabang, West Sumatra, Indonesia. In this research, the data used were based on Global Ionospheric Scintillation Model (GISM) as well as ISM from 2008 until 2012 for equinox months such as March, April, Septem…
This paper continues some results from equatorial GPS ionospheric scintillation observations that have been conducted at Kototabang, West Sumatera Indonesia. The previous research has shown that the maximum ionospheric scintillation occured in equinox months which are in March to April and September to October. To get the morphological appearances of ionospheric scintillation, the analysis that…
The measurement of the magnetic degree and magnetic susceptibility of iron sand deposited along Padang beach West Sumatra has been done. The amount of sample of each location was 10 Kg. The sample was completely dried under sun ray before being processed by iron sand separator. The value of total magnetic induction was measured using a magnetic sensor called Pasco magnetic probe PS-2162. Prior …
Production of carbon electrode supercapacitor made from coconut shell carbon has been demonstrated used spraying method. The Increment of porosity parametry was developed by KOH activation variations of KTK 1 sample, KTK 2, and KTK 3. Measurement physical nature of carbon powder used N2 gas absorption method is to measure specific surface area, scanning electron microscopy to saw morphology str…
This study simulates the heat distribution in the conductor plate for micro energy generation based on module Thermoelectric Generator (TEG) type 40-40-10 / 100 to optimize the absorption of the vehicle exhaust waste heat. The module has a maximum operating temperature of 423K. The modeling is done using MATLAB with a modified diffusion equation by temperature application of 900K as boundary co…