Results 31 to 40 of about 2,382,538 (250)

A cross-sectional transmission electron microscopy study of iron recovered from a laser-heated diamond anvil cell [PDF]

, 2008
This paper discusses the use of a focused ion beam for the preparation of cross-sectional transmission electron microscopy specimens from small samples, typically 150 micron in diameter, that have been recovered from a laser-heated diamond anvil cell. We
Greaves, Graeme, Jephcoat, A P, Donnelly, S. E., Bouhifd, M A   +3 more
core   +1 more source

Electron Beam Testing

, 1989
Publisher Summary The term “Electron Beam Testing” means the testing of electrical properties of a circuit or an electron device by using the electron beam. The commercial electron beam tester uses the probing action of an electron beam, and it can resolve 0.1 μ m spatially and subnanosecond in time. Its voltage sensitivity reaches 10 mV.
Ura, Katsumi, Fujioka, Hiromu
openaire   +1 more source

Sample preparation for nanoanalytical electron microscopy using the FIB lift-out method and low energy ion milling [PDF]

, 2006
Thinning specimens to electron transparency for electron microscopy analysis can be done by conventional (2 - 4 kV) argon ion milling or focused ion beam (FIB) lift-out techniques.
Smith, W., MacKenzie, M., Docherty, F.T., Miller, B., Scott, J., Collins, C.L., Craven, A.J.   +6 more
core   +1 more source

Method for the use of polymer beads as dosimeters for low-energy electron irradiation

Frontiers in Physics
In this study, a novel bead-based dosimetry system was developed. This approach uses suspended polymethyl methacrylate beads, which experience a dose-dependent change in fluorescence intensities.
Joana Kira Besecke, Joana Kira Besecke, Joana Kira Besecke, Lysann Kenner, André Poremba, Jessy Schönfelder, Jessy Schönfelder, Tobias Teichmann, Martin Thoma, Martin Thoma, Thomas Grunwald, Thomas Grunwald, Elizabeth von Hauff, Elizabeth von Hauff, Ulla König, Björn Poppe, Simone Schopf, Simone Schopf   +17 more
doaj   +1 more source

Composition formulas of Fe-based transition metals-metalloid bulk metallic glasses derived from dual-cluster model of binary eutectics

Scientific Reports, 2017
It is known that bulk metallic glasses follow simple composition formulas [cluster](glue atom)1 or 3 with 24 valence electrons within the framework of the cluster-plus-glue-atom model.
Gul Jabeen Naz, Dandan Dong, Yaoxiang Geng, Yingmin Wang, Chuang Dong   +4 more
doaj   +1 more source

Structural and biochemical analysis of a B12 superbinder

FEBS Letters, EarlyView.
BtuG proteins are vitamin B12 scavengers in Bacteroides thetaiotaomicron, a dominant human gut bacterium. We present crystal structures of three BtuG homologs bound to cobalamin and its precursor cobinamide, revealing picomolar binding affinities, among the highest known for any natural protein.
Jose M. Martinez Felices, Jacob J. Whittaker, Dirk J. Slotboom, Albert Guskov   +3 more
wiley   +1 more source

Liquid dosimeter with sensitivity in low-kGy range for the characterization of a new module for EB wastewater treatment

Nukleonika
In recent years, the use of low-energy electrons in various ecological and biotechnological applications has become increasingly relevant. One important application is the treatment of wastewater, wherein highly reactive species produced by water ...
Schaap Lotte Ligaya, Teichmann Tobias, Poremba Andre, Besecke Joana Kira, Schopf Simone, Mattausch Gösta, von Hauff Elizabeth   +6 more
doaj   +1 more source

Comparative assessment of crystallographic and cryo‐EM models in the Protein Data Bank

FEBS Open Bio, EarlyView.
Raw data obtained by X‐ray crystallography or cryo‐EM result in experimental maps, ultimately fitted by atomic models. Although the physical principles are different, the final results can be viewed, compared, and evaluated in the same way. With cryogenic electron microscopy (cryo‐EM) on track to surpass X‐ray crystallography as the preferred method ...
Alexander Wlodawer, Pawel Rubach, Zbigniew Dauter, Wojciech Dec, Dariusz Brzezinski, Marta Kulik, Wladek Minor, Mariusz Jaskolski   +7 more
wiley   +1 more source

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth, Tomáš Babinský, Jan Lars Riedel, Wen Hao Kan, Aijun Huang, Martin Heilmaier, Ivo Šulák   +6 more
wiley   +1 more source

Electron Beam Surface Treatment. Part II: Microstructure Evolution of Stainless Steel and Aluminum Alloy During Electron Beam Rapid Solidification [PDF]

, 2003
Surface rapid solidification microstructures of AISI 321 austenitic stainless steel and 2024 aluminum alloy have been investigated by electron beam remelting process and optical microscopy observation.
宋仁国, 陈光南, Song, RG (reprint author), Natl Inst AIST, Res Inst Biol Resources, Toyohira Ku, 2-17-2-1 Tsukisamu Higashi, Sapporo, Hokkaido 0628517, Japan., 张坤   +3 more
core   +1 more source