Results 51 to 60 of about 6,540 (173)

Solidification Morphology Analysis of SLM of Cu Powder [PDF]

, 2004
The solidification morphology analysis of fine Cu powder melted by a raster scanned energy beam from a focused Nd:YAG laser is presented here. The powder was processed inside of sealed chamber where it was subjected to a high vacuum cycle.
Bourell, David L., Ramos Grez, Jorge A.
core   +1 more source

Friend, Not Foe: Lowered Tissue Reactivity to Long‐Term Polyimide Implants

Advanced Science, EarlyView.
The choice of optimal neural probe designs remains a major challenge in the field of neurotechnology. This study investigated the biocompatibility of several probe variations, including material, thickness, width, and implantation strategy. It highlights the clear advantage of soft polyimide probes over stiff silicon probes for better device ...
Corinne Orlemann, Laura M. De Santis, Paul Neering, Christian Boehler, Kirti Sharma, Arno Aarts, Tobias Holzhammer, Rik J. J. van Daal, Patrick Ruther, Maria Asplund, Roxana N. Kooijmans, Pieter R. Roelfsema   +11 more
wiley   +1 more source

Temporal Modeling of Amyloid and Tau Trajectories in Alzheimer's Disease Using PET and Plasma Biomarkers

Annals of Neurology, EarlyView.
Objective This study aimed to compare positron emission tomography (PET) and plasma‐based temporal modeling of amyloid and tau biomarkers in Alzheimer's disease. Methods Longitudinal amyloid PET (n = 1,097, mean age ± SD = 72.5 ± 7.38 year, 51.4% male), 18F‐flortaucipir tau‐PET (n = 230, 74.3 ± 7.18 year, 52.2% female), and Fujirebio Lumipulse plasma p‐
Christopher A. Brown, Katheryn A.Q. Cousins, Magdalena Korecka, Emily McGrew, Alice Chen‐Plotkin, John A. Detre, Corey T. McMillan, Edward B. Lee, Sandhitsu R. Das, Dawn Mechanic‐Hamilton, Paul A. Yushkevich, Ilya M. Nasrallah, Leslie M. Shaw, for the Alzheimer's Disease Neuroimaging Initiative, David A. Wolk   +14 more
wiley   +1 more source

Single-longitudinal-mode vortex Nd:YVO4 laser using a circular Dammann grating for pump shaping

Applied Physics Express
In this research, a 1064 nm single-longitudinal-mode (SLM) vortex beam was generated from an annular-pumped Nd:YVO _4 microchip laser, in which a circular Dammann grating was used to reshape the 808 nm pump light into an annular intensity profile.
Jiaxin Song, Junjie Yu, Weilin Cao, Yuefei Li, Dawei Zhang, Jianlang Li   +5 more
doaj   +1 more source

Experimental observation of fractional topological phases with photonic qudits

, 2016
Geometrical and topological phases play a fundamental role in quantum theory. Geometric phases have been proposed as a tool for implementing unitary gates for quantum computation.
Khoury, A. Z., Machado, P., Marques, B., Matoso, A. A., Oxman, L. E., Pimenta, W. M., Pádua, S., Sciarrino, F., Sánchez-Lozano, X.   +8 more
core   +1 more source

Carbon Dots: An Emerging Frontier for Green and Sustainable Civil Engineering Materials

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Traditional civil engineering materials (CE materials) are usually involved with high‐energy consumption during manufacturing, significant maintenance costs, and substantial environmental impacts throughout their life cycles. The progress of nanotechnology is catalyzing a green and sustainable transformation within the field.
Weiwen Hao, Xiaolong Wang, Xiao Chen, Dong Liu, Zhenhui Kang, Cheng Zhu   +5 more
wiley   +1 more source

Switchable Dual-Wavelength Thulium-Doped Fiber Laser Based on Polarization-Maintaining Fiber Bragg Grating and Compound Cavity Filter

Photonics
This paper presents experimental evidence regarding a novel switchable dual-wavelength thulium-doped fiber laser (TDFL). Wavelength switching is achieved by combining a polarization-maintaining fiber Bragg grating (PM-FBG) with a polarization controller (
Xiangdong Wang, Fengping Yan, Hao Guo, Wei Wang, Dandan Yang, Pengfei Wang, Ting Li, Chenhao Yu, Kazuo Kumamoto, Yuping Suo   +9 more
doaj   +1 more source

Tunable and Switchable Dual-Wavelength SLM Narrow-Linewidth Fiber Laser with a PMFBG-FP Filter Cascaded by Multi-Ring Cavity

Photonics, 2022
A single longitudinal mode (SLM) dual-wavelength switchable erbium-doped fiber laser (DW-EDFL) based on polarization-maintaining fiber Bragg grating Fabry–Perot cavity (PMFBG-FP) cascaded multiple sub-ring cavities (MSCs) is proposed.
Mingquan Gao, Bin Yin, Yanzhi Lv, Guofeng Sang, Benran Hou, Haisu Li, Muguang Wang, Songhua Wu   +7 more
doaj   +1 more source

Roadmap on structured light [PDF]

, 2017
Structured light refers to the generation and application of custom light fields. As the tools and technology to create and detect structured light have evolved, steadily the applications have begun to emerge.
Belmonte Molina, Aniceto, Berry, M. V., Forbes, Andrew, Pérez Torres, Juan, Rosales Guzmán, Carmelo, Rubinsztein-Dunlop, Halina   +5 more
core   +2 more sources

Febrile status epilepticus and epileptogenesis: The FEBSTAT study

Epilepsia Open, EarlyView.
Abstract The multicenter FEBSTAT study (Consequences of Prolonged Febrile Seizures in Childhood: https://grantome.com/grant/NIH/R37‐NS043209‐12; PI S. Shinnar) examined the outcome of febrile status epilepticus (FSE) in over 200 prospectively enrolled infants, with many followed for 10 years after FSE.
Darrell V. Lewis, Douglas R. Nordli Jr., Douglas R. Nordli III, Shlomo Shinnar, Stephen Chan, Jacqueline A. Bello, L. Matthew Frank, James Voyvodic, William Gallentine, Syndi Seinfeld, Yoshimi Sogawa, Erica Weiss, David Masur, Yuan Xu, Solomon L. Moshé   +14 more
wiley   +1 more source