Results 51 to 60 of about 615,196 (306)

Diagnostics tools and methods for negative ion source plasmas, a review

New Journal of Physics, 2017
Plasma parameter measurements for negative hydrogen (H ^− ) ion sources have been playing an important role in clarifying fundamental physics related to negative ion production and destruction processes. Measured data of beam properties, such as H ^− ion
Katsuyoshi Tsumori, Motoi Wada
doaj   +1 more source

Rotational and nuclear-spin level dependent photodissociation dynamics of H2S

Nature Communications, 2021
The photodissociation dynamics of small molecules in the vacuum ultraviolet range can have key implications for astrochemical modelling, but revealing such dynamical details is a challenging task.
Yarui Zhao, Zijie Luo, Yao Chang, Yucheng Wu, Su-e Zhang, Zhenxing Li, Hongbin Ding, Guorong Wu, Jyoti S. Campbell, Christopher S. Hansen, Stuart W. Crane, Colin M. Western, Michael N. R. Ashfold, Kaijun Yuan, Xueming Yang   +14 more
doaj   +1 more source

Linac4 H− ion sources

Review of Scientific Instruments, 2015
CERN’s 160 MeV H− linear accelerator (Linac4) is a key constituent of the injector chain upgrade of the Large Hadron Collider that is being installed and commissioned. A cesiated surface ion source prototype is being tested and has delivered a beam intensity of 45 mA within an emittance of 0.3 π ⋅ mm ⋅ mrad.
Lettry J, Aguglia D, Alessi J, Andersson P, Bertolo S, Briefi S, Butterworth A, Coutron Y, Dallocchio A, David N, Chaudet E, Faircloth D, Fantz U, Fink DA, Garlasche M, Grudiev A, Guida R, Hansen J, Haase M, Hatayama A, Jones A, Koszar I, Lallement JB, Lombardi AM, Machado C, Mastrostefano C, Mathot S, Mattei S, Moyret P, Nisbet D, Nishida K, O'Neil M, Paoluzzi M, Scrivens R, Shibata T, Steyaert D, Thaus N, Voulgarakis G   +37 more
openaire   +3 more sources

Degradation mechanism of the von Willebrand factor A2 domain by nattokinase

FEBS Letters, EarlyView.
Nattokinase, a natto‐derived protease, exhibits potent antithrombotic effects. This study demonstrates that nattokinase directly cleaves the von Willebrand factor (vWF) A2 domain in vitro. Unlike the native regulator ADAMTS13, nattokinase degrades folded vWF independently of shear stress.
Ryuichi Hyakumoto, Masatomo So, Ayako Furukawa, Kenji Sugase   +3 more
wiley   +1 more source

Long-pulse Operation of a Cesium-Seeded High-Current Large Negative Ion Source

, 1997
"A high-power large negative ion source has been operated for a long pulse duration. A three-grid single-stage accelerator is used, where the extraction grid is shaped so that the secondary electrons generated on the extraction grid would be prevented ...
Oka, Y., Kaneko, O., Tsumori, K., Kuroda, T.", T. Takanashi, M. Osakabe, Asano, E., Y. Oka, E. Asano, Akiyama, R., Takanashi, T., Y. Takeiri, K. Tsumori, Osakabe, M., O. Kaneko, R. Akiyama, T. Kawamoto, T. Kuroda, Kawamoto, T., "Takeiri, Y.   +19 more
core   +1 more source

Characterization of the RF plasma in negative ion source NIO1 [PDF]

, 2022
The NIO1 experiment is a negative ion source built at Consorzio RFX, Padua, with the aim to investigate and optimize the negative ion production. With this purpose, a diagnostic of the plasma in the NIO1 source is essential.
Buonincontri, Laura
core  

Modulation of Homer1 EVH1 domain internal dynamics by putative autism‐associated mutations

FEBS Letters, EarlyView.
The putative autism‐associated M65I and S97L variants of the EVH1 domain of the postsynaptic scaffold protein Homer1 do not exhibit substantial changes in their overall structure or partner binding. Both of them, but especially the M65I variant, show altered internal dynamics relative to the wild‐type domain on the μs‐ms timescale, indicated by the ...
Fanni Farkas, Brigitta Maruzs, Zsófia E. Kálmán, Tomas Klumpler, Gyula Batta, Bálint Péterfia, Zoltán Gáspári   +6 more
wiley   +1 more source

Ion source of DMS-01 scientific equipment for «AIST no 2» small spacecraft

Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2016
The main requirements imposed upon ion sources for on-board time-of-flight mass spectrometers are considered in the paper. An approximate formula to calculate the ionization cross section of an analyte substance is given.
N. D. Semkin, I. V. Piyakov, M. A. Rodina, D. V. Rodin   +3 more
doaj   +1 more source

Enhancement of Characteristics of Field Asymmetric Ion Mobility Spectrometer with Laser Ionization for Detection of Explosives in Vapor Phase

Chemosensors, 2020
Ion mobility spectrometry instrumentation today is widespread in the area of transport security and counterterrorism. This method of detection of explosive substances is highly appreciated for the existence of portable detectors capable of detecting ...
Vitalii A. Kostarev, Gennadii E. Kotkovskii, Alexander A. Chistyakov, Artem E. Akmalov   +3 more
doaj   +1 more source

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

Molecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source