Results 51 to 60 of about 1,265,495 (296)
InstrumentsA low-current compact extraction and matching system has been designed and experimentally tested to evaluate its capability for direct proton injection of 15 keV into a 750 MHz radiofrequency quadrupole for medical applications.
Aristeidis Mamaras +4 more
doaj +1 more source
Malignant duodeno-colic fistula
Journal of Digestive Endoscopy, 2014 Colo-duodenal fistula is a rare complication of gastro-intestinal malignancy and inflammatory bowel disease. The fistula often results in diarrhea and vomiting with dramatic weight loss.
Debasis Misra +8 more
doaj +1 more source
, 2014 As soon as the first particles emerge from an ion source, the source characteristics need to be determined. The total beam intensity, the transverse particle distributions, the beam divergence and emittance as well as the longitudinal parameters of the beam must be measured.
openaire +2 more sources
Coordinated Architectural and Chemical Reinforcement in the Crushing Mandible of a Soldier Termite
Advanced Functional Materials, EarlyView.The crushing mandible of a soldier termite withstands substantial biting loads despite lacking mineral. Its cuticle is partitioned: convex teeth pair hardness and zinc enrichment with aligned chitin fibers for contact durability, while stiffer concave regions between teeth carry bending loads.
Andrew Tran Nguyen +16 more
wiley +1 more source
Dirac‐Source Linear X‐Ray Detection Diode
Advanced Functional Materials, EarlyView.Monolayer graphene imparts near linear current‐voltage behavior to a perovskite X‐ray detection diode, contrasting with conventional diode‐like responses. Exploiting graphene's Dirac dispersion and a Schottky‐like back‐to‐back junction, the device achieves six‐orders‐of‐magnitude dark current suppression while retaining linearity over 200 V, enabling ...
Babar Shabbir +8 more
wiley +1 more source
Transverse beam emittance measurement of a high current DC electron gun: Simulation and experimental approaches [PDF]
AIP AdvancesHigh-current DC electron guns play a vital role in high-power electromagnetic sources. Accurate determination of essential parameters, such as transverse emittance, is important because this parameter affects the quality of the output radiation.
A. Sadraei Javaheri +3 more
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Biodegradable Conductors for Implantable and Wearable Transient Bioelectronics
Advanced Functional Materials, EarlyView.Biodegradable conductors are essential building blocks for transient bioelectronics, enabling temporary sensing, stimulation, and energy transfer while eliminating the need for device retrieval. This review summarizes biodegradable metals, conducting polymers, ionic conductors, and conductive composites, highlighting degradation mechanisms, material ...
Yicheng Zhu, Yijun Liu, Naoji Matsuhisa
wiley +1 more source
Advanced Materials, EarlyView.The engineering of colloidal nanocrystals with complex compositions has emerged as a highly active area of research within nanomaterials science. This review covers key aspects of colloidal solid‐solution nanocrystal formation using pulsed laser irradiation.
Marina T. Candela +4 more
wiley +1 more source
Physical Review Research, 2022 X-ray free-electron lasers (XFELs), with pulse durations of a few tens of femtoseconds or shorter, are cutting-edge instruments capable of observing structure and dynamics at the atomic scale.
Philipp Dijkstal +8 more
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He jishuCompared with turn-by-turn beam diagnostic techniques widely used in electron storage ring, bunch-by-bunch diagnostic technology allows the measurement and analysis of each bunch, offering a more comprehensive understanding of the internal state of the ...
DENG Youming +5 more
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