Properties of RBDPO Oleum as A Candidate of Palm Based-Transformer Insulating Liquid (Archive)

This paper presents properties of RBDPO Oleum to be used as an insulating liquid. RBDPO stand for Refined, Bleached and Deodorized Palm Oil. Electrical properties like breakdwon voltage, dielectric dissipation factor and relative permitivity of RBDPO Oleum were measured for three different temperature and compared to that of ASTM D-6871 standard. Physical and chemical properties like viscosity, acid number and water content are also investigated. Experimental results show that RBDPO oleum can be considered as an initial material for developing palm oil based-transformer insulating liquid. Breakdwon voltage of sample at room temperature, 25oC, is 57kV. The relative permtivity is 3.1, very closed to that of strandard, 3.2, while the dissipation factor is 0.03. Viscosity and water content of oil are significantly lower then those of ASTM D-6871 standard value. The remaining problems are reducing acid number wich are stil slightly above standard value

Redefining Data Provider: The REST approach to solve Indonesia lecturer administrative problems.

Directorate General Higher Education Institution of Indonesia (DGHEI), request lecturers to provide data or report their academic activities as evidence of them. Lecturers needs to make a portfolio or other document specified by DGHEI. From now on we will call this administrative issues. These issues are becoming a problem when the DGHEI requests these reports from the Lecturers to be updated in the DGHEI Systems in a specific time frame. The present paper discusses the problems that appear in the current system. Some of the problems that Lecturers face are: DGHEI Information Systems service unavailability. As a result of this analysis, a new methodology is proposed in order to solve these issues and others. The new approach, using REST (Representational Sate Transfer) to provide the lecturer data in a distributed manner, allowing sharing capabilities to the current system

The ABELS Brokering System

Simulations often need access to physically distributed data resources such as datasets, sensors, or even other simulations. The Agent-Based Environment for Linking Simulations (ABELS) is a framework that allows distributed simulations and data resources to dynamically communicate with each other in real time to produce useful and accurate results. Specifically, it allows independently designed simulations to communicate with no a priori knowledge of the details of other simulations and data resources

KEYWORDS THE SECURE ABELS BROKERING SYSTEM

Distributed simulation, brokering systems, security, dynamic information exchange, software agents, simulation tools. The Agent-Based Environment for Linking Simulations (ABELS) system is a software framework whose goal is to enable independent simulations and other data resources to exchange information dynamically without prior knowledge of each other. Specifically, it enables the dynamic formation of a “cloud ” of simulations and other networked resources such as sensors and databases. This data and simulation cloud uses a distributed brokering system to match data consumers in the cloud with appropriate data producers, based on registration information submitted by the various participants in the cloud. In a system of interacting independent resources, there are several security concerns, including how to prevent undesirable entities from joining and participating in the cloud, how to protect sensitive information, and how to ensure the integrity of the cloud so that it functions reliably. This paper presents the redesign of the ABELS brokering system to incorporate security features that address these concerns