166 research outputs found

    Media Interaktif Pembelajaran Sistem Pernapasan Manusia

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    Lessons learned in the field of biology like human breathing often becomes a tough lesson to understand because in biology lessons often rely solely on pictures in the textbooks, while students can sometimes interpret the picture differently. One way to understand the biology of the concept could use multimedia applications these applications would pack the human respiratory system become lessons interactive and engaging, where users will be involved in the learning process.The material in this interactive media among others are breathing and respiratory phase, respiratory organs, respiratory gas transport mechanisms in the alveoli and respiratory disease. There is also a test to measure the level of understanding the user that has been studied from this application. Applications created by using Adobe Flash CS6.Simulation and animation in the application will greatly assist the user in understanding the material. Therefore user's interest in learning is increased, coupled with the easiness of application USAge and user friendl

    Study of Chemical Changes in Uranium Oxyfluoride Particles Progress Report March - October 2009

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    Nuclear forensics relies on the analysis of certain sample characteristics to determine the origin and history of a nuclear material. In the specific case of uranium enrichment facilities, it is the release of trace amounts of uranium hexafluoride (UF{sub 6}) gas - used for the enrichment of uranium - that leaves a process-characteristic fingerprint. When UF{sub 6} gas interacts with atmospheric moisture, uranium oxyfluoride particles or particle agglomerates are formed with sizes ranging from several microns down to a few tens of nanometers. These particles are routinely collected by safeguards organizations, such as the International Atomic Energy Agency (IAEA), allowing them to verify whether a facility is compliant with its declarations. Spectrometric analysis of uranium particles from UF{sub 6} hydrolysis has revealed the presence of both particles that contain fluorine, and particles that do not. It is therefore assumed that uranium oxyfluoride is unstable, and decomposes to form uranium oxide. Understanding the rate of fluorine loss in uranium oxyfluoride particles, and the parameters that control it, may therefore contribute to placing boundaries on the particle's exposure time in the environment. Expressly for the purpose of this study, we prepared a set of uranium oxyfluoride particles at the Institute for Reference Materials and Measurements (EU-JRC-IRMM) from a static release of UF{sub 6} in a humid atmosphere. The majority of the samples was stored in controlled temperature, humidity and lighting conditions. Single particles were characterized by a suite of micro-analytical techniques, including NanoSIMS, micro-Raman spectrometry (MRS), scanning (SEM) and transmission (TEM) electron microscopy, energy-dispersive X-ray spectrometry (EDX) and focused ion beam (FIB). The small particle size was found to be the main analytical challenge. The relative amount of fluorine, as well as the particle chemical composition and morphology were determined at different stages in the ageing process, and immediately after preparation. This report summarizes our most recent findings for each of the analytical techniques listed above, and provides an outlook on what remains to be resolved. Additional spectroscopic and mass spectrometric measurements were carried out at Pacific Northwest National Laboratory, but are not included in this summary

    Action Sheet 36 Final Report

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    Pursuant to the Arrangement between the European Commission DG Joint Research Centre (EC-JRC) and the Department of Energy (DOE) to continue cooperation on research, development, testing, and evaluation of technology, equipment, and procedures in order to improve nuclear material control, accountancy, verification, physical protection, and advanced containment and surveillance technologies for international safeguards, dated 1 September 2008, the IRMM and LLNL established cooperation in a program on the Study of Chemical Changes in Uranium Oxyfluoride Particles under IRMM-LLNL Action Sheet 36. The work under this action sheet had 2 objectives: (1) Achieve a better understanding of the loss of fluorine in UO{sub 2}F{sub 2} particles after exposure to certain environmental conditions; and (2) Provide feedback to the EC-JRC on sample reproducibility and characteristics

    Pembuatan Aplikasi Multiplayer Card Game Berbasis Android

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    There are a lot of card games or card games circulating today and demand a lot of circles, one of which is CardFight Vanguard. But some enthusiasts of this game wants to play but with the price of the card is quite expensive so often they only see or borrow from others.With the use of smartphones are widely used today by children and adults, an application designed to help these card players.This application provide cards that can be used by users of this application to make a deck that will be used to play, by using Wi-Fi technology users can play with other users during both connected to the same network connection.Based on testing, this application can run the DeckEdit function where users can create decks and functions as the original game on the Play menu where the user can play with other users
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