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Centrifugal Automation Of A Triglyceride Bioassay On A Low-Cost Hybrid Paper-Polymer Device, Neus Godino, Elizaveta Vereshchagina, Robert Gorkin Iii, Jens Ducree
Centrifugal Automation Of A Triglyceride Bioassay On A Low-Cost Hybrid Paper-Polymer Device, Neus Godino, Elizaveta Vereshchagina, Robert Gorkin Iii, Jens Ducree
Robert Gorkin III
We present a novel paper-polymer hybrid construct for the simple automation of fundamental microfluidic operations in a lab-on-a-disc platform. The novel design, we term a paper siphon, consists of chromatographic paper strips embedded along a siphon microchannel. The paper siphon relies on two main interplaying forces to create unique valving and liquid-sampling methods in centrifugal microfluidics. At sufficiently low speeds, the inherent wicking of the paper overcomes the rotationally induced centrifugal force to drive liquids towards inwards positions of the disc. At elevated speeds, the dominant centrifugal force will extract liquid from the siphon paper strip towards the edge of …
Tandem Gas Metal Arc Welding For Low Distortion Butt Welds, Nathan Larkin, Zengxi Pan, Stephen Van Duin, Mark Callaghan, Huijun Li, John Norrish
Tandem Gas Metal Arc Welding For Low Distortion Butt Welds, Nathan Larkin, Zengxi Pan, Stephen Van Duin, Mark Callaghan, Huijun Li, John Norrish
zengxi pan
The feasibility of using Tandem Gas Metal Arc Welding (T-GMAW) to produce full penetration butt welds in 5mm ship panel steel plates has been assessed and compared to the current Submerged Arc Welding (SAW) process. Experiments conducted show that the T-GMAW process is feasible and demonstrated a significant improvement over the SAW process in several areas including higher travel speed, a reduction in filler material, significantly lower post weld distortion, and a smaller Heat Affected Zone (HAZ), while maintaining similar microstructure and mechanical properties in the weld metal and HAZ.
Identification Of Factors Limiting The Critical Current Density In Mgb2 _Xcx Superconductors At Low Magnetic Fields, Olga Shcherbakova, Alexey Pan, Jianli Wang, Andrey Shcherbakov, S. Dou, David Wexler
Identification Of Factors Limiting The Critical Current Density In Mgb2 _Xcx Superconductors At Low Magnetic Fields, Olga Shcherbakova, Alexey Pan, Jianli Wang, Andrey Shcherbakov, S. Dou, David Wexler
Jianli Wang
Structural analysis and electromagnetic measurements have been performed on a range of samples prepared by the liquid mixing approach to doping MgB2 are sugar, malic acid, and polycarbosilane. The results obtained have allowed us to clarify the contributions of the factors limiting critical current at low magnetic fields in doped MgB2.
Tandem Gas Metal Arc Welding For Low Distortion Butt Welds, Nathan Larkin, Zengxi Pan, Stephen Van Duin, Mark Callaghan, Huijun Li, John Norrish
Tandem Gas Metal Arc Welding For Low Distortion Butt Welds, Nathan Larkin, Zengxi Pan, Stephen Van Duin, Mark Callaghan, Huijun Li, John Norrish
Nathan Larkin
The feasibility of using Tandem Gas Metal Arc Welding (T-GMAW) to produce full penetration butt welds in 5mm ship panel steel plates has been assessed and compared to the current Submerged Arc Welding (SAW) process. Experiments conducted show that the T-GMAW process is feasible and demonstrated a significant improvement over the SAW process in several areas including higher travel speed, a reduction in filler material, significantly lower post weld distortion, and a smaller Heat Affected Zone (HAZ), while maintaining similar microstructure and mechanical properties in the weld metal and HAZ.
A Comparison Of X-Ray And Proton Beam Low Energy Secondary Electron Track Structures Using The Low Energy Models Of Geant4, Aimee Mcnamara, Susanna Guatelli, Dale Prokopovich, Mark Reinhard, Anatoly Rosenfeld
A Comparison Of X-Ray And Proton Beam Low Energy Secondary Electron Track Structures Using The Low Energy Models Of Geant4, Aimee Mcnamara, Susanna Guatelli, Dale Prokopovich, Mark Reinhard, Anatoly Rosenfeld
Susanna Guatelli
"Purpose: Lethal cell damage by ionising radiation is generally initiated by the formation of complex strand breaks, resulting from ionisation clusters in the DNA molecule. A better understanding of the effect of the distribution of ionisation clusters within the cell and particularly in regard to DNA segments could be beneficial to radiation therapy treatment planning. Low energy X-rays generate an abundance of low energy electrons similar to that associated with MeV protons. The study and comparison of the track structure of photon and proton beams could permit the substitution of photon microbeams for single cell ion irradiations at proton facilities …