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Search Results - felix+wehrli
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DREAMER: Single-Scan, Multi-Contrast 3D Magnetic Resonance Imaging of Solid and Soft Tissue
A rapid, radiation-free magnetic resonance imaging (MRI) method that simultaneously captures bone-selective (pseudo-CT) bone images and high-resolution T1- and T2-weighted soft-tissue images in a single, self-registered 3D scan. Problem: MRI excels at visualizing soft tissue, but capturing high-quality images of rigid structures like cortical bone remains...
Published: 12/9/2025
|
Inventor(s):
Chamith Rajapakse
,
Brian-Tinh Duc Vu
,
Felix Wehrli
,
Nada Kamona
Keywords(s):
Orthopedics
,
Radiology
Category(s):
Technology Classifications > Diagnostics
,
Technology Classifications > Imaging
PMU-Embedded Analytics for Online Event Detection and Classification in Power Grids
The energy requirement of the world is increasing exponentially every year. With the power demand sites concentrated in the region with the highest population density, energy production sites must be located remotely. This isolation requires lengthy and complicated grids to be designed and manufactured to transmit power over long distances. Grid failures...
Published: 9/12/2025
|
Inventor(s):
Payman Dehghanian
,
Shiyuan Wang
,
Li Li
Keywords(s):
Category(s):
Technology Classifications > Industrial or Consumer Tech > Energy Infrastructure and Environment
Method to Produce CT-Like 3D Images of Bones and Hard Tissue From MRI Sequences
Problem: Computed tomography (CT) is an imaging technique that enables 3D visualization of skeletal tissue. However, CT imaging exposes patients to hazardous radiation, which can be problematic for patients who require repeated scans or those in the pediatric population wherein the risks associated with radiation are greater. Magnetic resonance imaging...
Published: 9/18/2024
|
Inventor(s):
Felix Wehrli
,
Scott Bartlett
,
Hyunyeol Lee
,
Rosaline Zhang
Keywords(s):
Software
Category(s):
Technology Classifications > Imaging
Distributed Feedback Fiber Laser Pumped by Multimode Diode Lasers
Researchers at the University of Arizona College of Optical Sciences and Canada's Carleton University recently succeeded in fabricating high reflectivity (>99%) Fiber Bragg Gratings (FBGs) into phosphate glass fibers using UV light and a phase mask technique. With this new manufacturing technique, fiber lasers can be created as single monolithic...
Published: 4/3/2023
|
Inventor(s):
Nasser Peyghambarian
,
Axel Schülzgen
,
Li Li
,
Jacques Albert
Keywords(s):
Category(s):
Technology Classifications > Imaging & Optics
,
Technology Classifications > Imaging & Optics > Lasers & Other Sources
All-Fiber Multicore Fiber Laser Devices
Researchers at the University of Arizona have developed a compact, power-scalable, alignment-free fiber laser that takes a new approach to stabilizing phase-locked operation of multi-core fiber lasers by completely removing all free space optical components. This high-brightness, all-fiber laser package uses passive optical fiber spliced at both ends...
Published: 4/3/2023
|
Inventor(s):
Nasser Peyghambarian
,
Axel Schülzgen
,
Li Li
Keywords(s):
Category(s):
Technology Classifications > Imaging & Optics
,
Technology Classifications > Imaging & Optics > Fiber Optics
,
Technology Classifications > Imaging & Optics > Lasers & Other Sources