In Sweden, high level radioactive waste will be disposed of in a canister with a copper outer and a cast iron or carbon steel inner. If the iron insert comes into contact with anoxic geological water, anaerobic corrosion leading to the generation of hydrogen will occur. This paper presents a study of the anaerobic corrosion of carbon steel and cast iron in artificial Swedish granitic groundwate...

We describe an ensemble learning approach that accurately learns from data that has been partitioned according to the arbitrary spatial requirements of a large-scale simulation wherein classifiers may be trained only on the data local to a given partition. As a result, the class statistics can vary from partition to partition; some classes may even be missing from some partitions. In order to l...

Canister integrity and radionuclides retention is of prime importance for assessing the long term safety of nuclear waste stored in engineered geologic depositories. A comparative investigation of the interaction of uranyl ion with three different mineral surfaces has thus been undertaken in order to point out the influence of surface composition on the adsorption mechanism(s). Periodic DFT cal...

In this work, we will analyze the response of a Metal Oxide Gas Sensor (MOGS) array to a flow controlled stimulus generated in a pressure controlled canister produced by a homemade olfactometer to build an E-nose. The built E-nose is capable of chocolate identification between the 26 analyzed chocolate bar samples and four features recognition (chocolate type, extra ingredient, sweetener and ex...

The FEEP thruster development is carried out by Centrospazio under ESA and ASI funding. This activity aims at two application areas for which FEEP is unique, or presents substantial advantages with respect to other propulsion technologies: drag-free scientific missions and small satellites attitude control and orbit maintenance. Typical thrust ranges involved are 1 to 100 μN for dragfree contro...

Gas-generating devices of chlorine dioxide (ClO2) are used as deodorant of rooms. We happened to use a commercial tabletop deodorant canister that releases extremely low-concentration ClO2 gas in a school classroom as deodorant. We found retrospectively and unexpectedly that during a period of 38 consecutive school days the rate of school children absent from the school was markedly lower (1.5%...

Abstract Molybdenum-99 ( 99 Mo) is a parent radioisotope of Technetium-99m 99m Tc) widely used in nuclear diagnostics. The production this by PT. INUKI generated radioactive fission waste (RFW) that theoretically contains 239 Pu and 235 U, posing proliferation risk. This paper discusses the determination radionuclides inventory RFW proposed strategy for its management. was calculated using ORIG...

Abstract. To achieve near-continuous vertical observations of volatile organic compounds (VOCs) in the planetary boundary layer (PBL), multi-channel whole-air sampling equipment onboard an unmanned aerial vehicle (UAV) platform was developed this study. The consists a multi-position solenoid valve and specially designed lightweight quartz canisters. canisters have little adsorption loss VOCs go...