NASA propulsion controls research [PDF]
Multivariable control theory is applied to the design of multiple input and output engine controls. Highly-accurate, real-time engine simulations are utilized for control development and checkout.
Teren, F.
core +1 more source
Optical manipulation of sphingolipid biosynthesis using photoswitchable ceramides [PDF]
, 2019 Ceramides are central intermediates of sphingolipid metabolism that also function as potent messengers in stress signaling and apoptosis. Progress in understanding how ceramides execute their biological roles is hampered by a lack of methods to ...
Adada +51 more
core +1 more source
Microstructured optical fiber-based biosensors: reversible and nanoliter-scale measurement of zinc ions [PDF]
, 2016 Published: May 6, 2016Sensing platforms that allow rapid and efficient detection of metal ions would have applications in disease diagnosis and study, as well as environmental sensing.
Abell, A. +7 more
core +2 more sources
Synthesis of Dithienylcycloalkene Molecular Switches Enabled by a Bench‐Stable Ti‐Complex
Chemistry – A European Journal, EarlyView.Herein we report a set of cycloalkene‐bridged DTEs with ring sizes ranging from 4‐ to 7‐membered rings. The synthesis of these analogs was performed via a key McMurry coupling step, which was enabled by a practical, bench‐stable Ti(IV)‐complex. Remarkably, it is shown that the strained cyclobutene bridge outperforms other rings, even the most commonly ...
Marcell M. Bogner +4 more
wiley +1 more source
Fiberoptics technology and its application to propulsion control systems [PDF]
Electro-optical systems have many advantages over conventional electrical systems. Among these are optics' insensitivity to electro-magnetic interference, good electrical isolation and the ability to make measurements in highly explosive areas without ...
Baumbick, R. J.
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Crowned spiropyran fluoroionophores with a carboxyl moiety for the selective detection of lithium ions [PDF]
, 2016 The absorbance and fluorescence spectra of carboxylated spiropyrans containing methyl-1-aza-12-crown-4, methyl-1-aza-15-crown-5, methyl-1-aza-18-crown-6 moieties are compared.
Abell, A.D., Heng, S., Stubing, D.B.
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Fluorescent Diarylethenes With Polar Groups: Synthesis, Spectra, and Optical Microscopy Applications
Chemistry – A European Journal, EarlyView.Blinking green and flashing red: photo‐switchable and photo‐activatable probes emitting green and red light were prepared and applied as bioconjugates in super‐resolution optical microscopy. ABSTRACT The use of photoactivatable fluorescent diarylethenes (fDAEs) in biology‐related light microscopy has been restricted by the lack of probes having freely ...
Kakishi Uno +6 more
wiley +1 more source
A building-block design for enhanced visible-light switching of diarylethenes
Nature Communications, 2019 Development of light-responsive materials imposes a demand on visible-light photoswitching but this is often achieved at expense of photochromic performance.
Zhiwei Zhang +7 more
doaj +1 more source
Fiber optics for aircraft engine/inlet control [PDF]
NASA programs that focus on the use of fiber optics for aircraft engine/inlet control are reviewed. Fiber optics for aircraft control is attractive because of its inherent immunity to EMI and RFI noise.
Baumbick, R. J.
core +1 more source
Ring closing reaction in diarylethene captured by femtosecond electron crystallography [PDF]
, 2013 The photoinduced ring-closing reaction in diarylethene, which serves as a model system for understanding reactive crossings through conical intersections, was directly observed with atomic resolution using femtosecond electron diffraction.
Asano Y. +58 more
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