Piping system is used for fluid distribution that is very important in various fields of industry. When compared to other transportation systems such as vehicles, piping systems have a higher level of integration and are more effective. The need for systems is increasing in the industrial sector. Therefore, various types of damage that can occur in the pipeline system are important to be assess…
Concept mastery is the ability of students to understand science scientifically both concepts in theory and their application in everyday life. The SSCS learning model is able to improve students' concept mastery abilities. The method used to measure the level of mastery of student concepts is done by applying Bloom's taxonomy to the categories of remembering, understanding, applying, analyzing…
The focus of this research is to analyze the the interest of United States of America implementing anti dumping duty on biodiesel imported from Indonesia. During the investigation periode the United State International Trade Commision (USITC) found the practice of dumping on Biodiesel imported from Indonesia and there was injury to the USA domestic industry. This research used a descriptive of…
Shallot productivity can be increased by taking into account the right fertilizer factor and the potential of the seeds used. The study of potassium and manure dosages and seed size were carried out to get the best treatment in increasing growth and yield. The study was conducted in the Experimental Garden of the Faculty of Agriculture, University of Riau, from February to April 2019, using a d…
This research was conducted in September 2019 in the fish hatchery and breeding laboratory of the Faculty of Fisheries and Marine of Riau University and Photomocrography laboratory of Mathematics sand Natural Sciences Faculty, Riau University. The purpose of this study was to evaluate the effect of different in the concentration of young coconut water on NaCl on sperm motility, viability, ferti…
In this research synthesis of hydroxyapatite (HAp) was carried out using Geloina coaxans shells as calcium precursors and (NH4)2HPO4 as phosphate sources through variations eggshell membrane mass (MCT) assisted of microwaves. Hydroxyapatite (HAp) is can be used in the medical, adsorbent and catalyst fields. Analysis of X-Ray Fluorescence (XRF) shows that the main chemical composition in the Gel…
In practice, the structure of the building was constructed gradually by placing floor by floor. This method of construction would affect the internal forces of the building that were abtained from the analysis of the structure during the preliminary design. One of the impact that affected is the eccentricity at the column. This research studies how far eccentricity deviation and column structur…
This research is background by illegal retribution on CPO trucks made by thugs in Dumai City that have occurred long ago. Although community resistance but illegal retribution continue to occur. This study uses the theory of social exchange. The purpose of this study is to find out the social exchange that occurs between thugs, the social exchange between the driver and the thugs and the effort…
The role of free riders remains a major problem in the motor vehicle tax services. Despite many restrictions and appeals about the use of the services of free riders, but its growth has not been eliminated in any licensing process as well as service to the community. This study aims to determine what might be causing preference tinggiya still use the services of brokers in the management of PKB…
Self-management of patient with coronary heart disease means as efforts to reduce behaviours which are potentially invited coronary heart disease and maintain treatment for the disease does not relapse or become worse. The purpose of the study was to know the picture self-management of patient with coronary heart disease post heart catheterization. Research methodology was quantitative descript…
The purpose of this experiment is to obtain rice straw trichokompos interaction with potassium fertilizer that gives the best effect on the growth and production of sweet corn. The experiment was held in the experiment garden of agriculture faculty in university of Riau, height 10 meters above sea level. Experiments carried out from June 2009 until October 2009. Experimental method used is…