Results 101 to 110 of about 10,248,710 (343)

Robust and Reversible Thermofluorescence in Solvent‐Free Thermoplastic Polyurethane Composites

open access: yesAdvanced Functional Materials, EarlyView.
Thermofluorescent polymer composites with high‐contrast optical outputs are prepared by solvent‐free blending of indenoquinacridone dye into a thermoplastic polyurethane matrix. The temperature‐dependent fluorescence originates from aggregation–dissociation of the dye molecules, regulated by competing hydrogen bonds from the polymer matrix.
Guanghua Yu   +8 more
wiley   +1 more source

UV-T-RH combined environmental testing [PDF]

open access: yes
A combined environmental aging chamber was developed at the Jet Propulsion Laboratory (JPL). The chamber has an ultraviolet (UV) light source that can be varied between 1 to 2 suns, temperature control from -40 to +175 C, and adjustable humidity. Results
Gonzalez, C. C.
core   +1 more source

Novel Single Photon Detectors for UV Imaging

open access: yes, 2005
There are several applications which require high position resolution UV imaging. For these applications we have developed and successfully tested a new version of a 2D UV single photon imaging detector based on a microgap RPC.
Bogomolov   +21 more
core   +1 more source

The effect of UV aging on structural polymers

open access: yesIOP Conference Series: Materials Science and Engineering, 2019
Polymer composites, their composition, and their properties are the major causes of their application as a construction material. Last century composites with polymer matrix were considered as the most perspective constructional material. Previous researches have only focused on mechanical characteristics of polymer composites but it is also important ...
L Markovičová, V Zatkalíková
openaire   +1 more source

The Effect of Purcell Cavities on the Lifetime of Thermally Activated Delayed Fluorescent Emitters

open access: yesAdvanced Functional Materials, EarlyView.
A pressing challenge to OLED displays and lighting is to balance high efficiency and long operational lifetime in the deep blue spectrum. The Purcell effect can reduce the triplet density and hence the probability for destructive energy‐driven triplet annihilation events that limit the OLED lifetime. Here we study of the Purcell effect on two different
Sritoma Paul   +4 more
wiley   +1 more source

Infrared Nanocrystals for Space Application: Hardness to Irradiations

open access: yesAdvanced Functional Materials, EarlyView.
This article investigates infrared HgTe nanocrystals under X‐ray and ion irradiation, revealing remarkable radiation hardness. It uncovers distinct degradation mechanisms and shows that the nanomaterial outperforms integrated electronics. The results position colloidal nanocrystals as promising candidates for resilient space and harsh‐environment ...
Alexandre Neyret   +22 more
wiley   +1 more source

Impact and mechanism of improving the UV aging resistance performance of modified asphalt binder

open access: yesReviews on Advanced Materials Science
To control the ultraviolet (UV) aging behavior of asphalt pavement materials effectively, hindered amine light stabilizer (HALS) is preferred as modifiers.
Zheng Guanghui   +4 more
doaj   +1 more source

Study program for encapsulation materials interface for low cost silicon solar array [PDF]

open access: yes
An atmospheric corrosion model was developed and verified by five months of corrosion rate and climatology data acquired at the Mead, Nebraska LSA test site.
Kaelble, D. H.   +3 more
core   +1 more source

dUTPase based switch controls transfer of virulence genes in order to preserve integrity of the transferred mobile genetic elements [PDF]

open access: yes, 2013
dUTPases ubiquitously regulate cellular dUTP levels to preserve genome integrity. Recently, several other cellular processes were reported to be controlled by dUTPases including the horizontal transfer of Staphylococcus aureus pathogenicity islands ...
Bendes, A.   +12 more
core   +1 more source

An Ultrafast Self‐Gelling Versatile Hydrogel for Rapid Infected Burn Wound Repair in Military Medicine

open access: yesAdvanced Functional Materials, EarlyView.
A self‐gelling PG@PAC (POD/Gel‐CDH@PA/CHX) powder is developed for infected burn care in austere settings. Upon contact with wound exudate, it instantly forms an adhesive hydrogel, providing simultaneous hemostasis, broad‐spectrum antibacterial activity, reactive oxygen species scavenging, and immunomodulation. In a murine model of S.
Liping Zhang   +14 more
wiley   +1 more source

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