Results 171 to 180 of about 5,373 (219)

Growth of SiC Microwires through Si Microwires Carburization

Materials Science Forum, 2011
Silicon microwires (MWs) previously synthesized using the VLS method with gold catalyst are being carburized at 1100°C under methane aiming to their conversion to SiC. SEM, TEM as well as XPS and Raman spectroscopy were used for structural and morphological characterization.
Maelig Ollivier, Arnaud Mantoux, Edwige Bano, Konstantinos Rogdakis, Konstantinos Zekentes, Thierry Baron, Laurence Latu-Romain   +6 more
openaire   +1 more source

Performance of the Microwire Detector

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2001
Abstract We present here the performance of a new micropattern proportional gas detector, developed by kapton etching technique. Several geometries have been tested under high-intensity beams at PSI (presence of HIPs), including amplification gaps of 50 and 125 μm . Performance results are reported under various operating conditions.
B. Adeva, F. Gómez, A. Iglesias, J.C. Labbé, A. Pazos, M. Pló, X.M. Rodrı́guez, P. Vázquez   +7 more
openaire   +1 more source

Aristotle 24 microwire early experience

Interventional Neuroradiology, 2022
Larger microcatheters are being used with increasing frequency in routine neurovascular procedures. Navigating catheters safely and effectively to the target intracranial vessels can be a challenge when using conventional 0.014″ microwires. A new family of 0.024″ Aristotle 24 microwires (Scientia Vascular, West Valley City, UT) specifically designed ...
Vincent N. Nguyen, Nitin Goyal, Nickalus R. Khan, Violiza Inoa, Lucas Elijovich, David Fiorella, Adam S. Arthur   +6 more
openaire   +2 more sources

Synthesis of silicon microwire

Journal of Materials Research, 2001
Silicon microwires have been synthesized by the Taylor microwire process. In this process, silicon is melted inside a glass tube by a local heating source and fine microwire is then drawn out by mechanical pulling. The silicon microwire is encapsulated in a silica glass coating.
J. J. Petrovic, R. C. Hoover, R. D. Field, K. Han   +3 more
openaire   +1 more source

Dynamic hysteresis in magnetostrictive amorphous microwires

IEEE Transactions on Magnetics, 2002
Summary form only given. Amorphous magnetostrictive wires exhibit very rapid bistable magnetisation reversal (large Barkhausen jump). This property makes them unique for applications in security sensors and pulse generators. As operational frequencies become progressively higher, there is an interest in studying the magnetisation reversal in bistable ...
S.I. Sandacci, A.N. Grigorenko, L.V. Panina, D.J. Mapps   +3 more
openaire   +1 more source

Self-Connected 3D Architecture of Microwires

Physical Review Letters, 2009
A defect or disclination line, prepared at a designed place in a nematic liquid crystal, is used as a template for realizing a microwire directly connected to the electrodes with an accuracy of a few microm. The line attracts and traps silica particles, until self-assembling a complete micronecklace. We then fix the colloids in the necklace by means of
Jean-Baptiste, Fleury, David, Pires, Yves, Galerne   +2 more
openaire   +2 more sources

Emission behaviors from ZnO microwire pumped CsPbBr₃ perovskite microwire

Optics Letters
Perovskite semiconductor materials have attracted significant attention in the fields of photovoltaics and luminescence due to their excellent photoelectric properties, such as high carrier mobility, high absorption coefficient, and high fluorescence quantum yield.
Xinyu Zhang, Jing Lyu, Shuangyang Zou, Denan Kong, Yujing Zhao, Ruibin Liu   +5 more
openaire   +2 more sources

Optical fiber microwire current sensor

Optics Letters, 2010
We demonstrate a compact optical fiber microwire current sensor based on the Faraday effect with gigahertz frequency of current sensing capabilities.
Belal, M., Song, Z., Jung, Y., Brambilla, G., Newson, T. P.   +4 more
openaire   +4 more sources

Melt Extracted Microwires

2017
Amorphous microwires as a new category of advanced materials possess many excellent mechanical and magnetic properties, and have received considerable attention from both the research and industry community. Significant efforts have been devoted to the optimization of fabrication process, tailoring of mechanical and magnetic properties, sensor and ...
H. Wang, F. X. Qin, H. X. Peng, J. F. Sun   +3 more
openaire   +1 more source

Cortical recording with polypyrrole microwire electrodes

2008 30th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2008
The ability to record from the same neuron for extended periods of time is essential to understanding how the brain reorganizes during learning. Conventional chronic recording microelectrodes are made from metal or silicon. However, the large stiffness mismatch between the electrodes and brain tissue causes shear-induced inflammation, limiting long ...
Woong J, Bae, Bryan P, Ruddy, Andrew G, Richardson, Ian W, Hunter, Emilio, Bizzi   +4 more
openaire   +2 more sources