Results 101 to 110 of about 855,477 (278)

Melt Grafting of Geometry‐Tailored Voltage Stabilizers for High‐Performance Polypropylene Insulation

open access: yesAdvanced Functional Materials, EarlyView.
A scalable one‐step melt grafting strategy is developed to enhance the dielectric properties of isotactic polypropylene by covalently incorporating thermally stable aromatic voltage stabilizers. This solvent‐free approach improves volume resistivity and DC breakdown strength through deep trap formation and charge localization, offering a sustainable ...
Nazirul Mubin bin Normansah   +9 more
wiley   +1 more source

Evaluation of the accuracy and limitations of three tooth-color measuring machines

open access: yesJournal of Dental Sciences, 2015
Background/purpose: To use dental shade guides as the standard to evaluate the accuracy of tooth-color matching devices and how they are affected by the limitation of uneven distribution and insufficient color space coverage of the dental shade guide ...
Jiun-Yao Chang   +6 more
doaj   +1 more source

Synthetic Nanobiology Actuated Lipometabolic Cell Factory for Autologous Tumor Immunotherapy

open access: yesAdvanced Functional Materials, EarlyView.
FA plays a crucial role in the interaction between tumor cells and the tumor microenvironment, especially for the immune response. A biocatalytic immunoenhancement strategy is developed to boost antitumor immunity by FA metabolic orientation to ceramide. Through the design of this delicate catalytic immunoenhancement strategy, the synthetic nanobiology
Shoujie Zhao   +8 more
wiley   +1 more source

Infrared spectroscopy for the determination of hydrocarbon types in jet fuels [PDF]

open access: yes
The concentration of hydrocarbon types in conventional jet fuels and synfuels can be measured using a computerized infrared spectrophotometer. The computerized spectrophotometer is calibrated using a fuel of known aromatic and olefinic content.
Buchar, C. S.
core   +1 more source

FTIR analysis of aviation fuel deposits [PDF]

open access: yes, 1984
Five modes of operation of the Nicolet 7199 Fourier Transform Infrared Spectrophotometer have been evaluated for application in analysis of the chemical structure of accelerated storage/thermal deposits produced by jet fuels.
Helmick, L. S., Seng, G. T.
core   +2 more sources

Cryogenic Volume-Phase Holograpic Grisms for MOIRCS

open access: yes, 2011
We have developed high dispersion VPH (volume phase holographic) grisms with zinc selenide (ZnSe) prisms for the cryogenic optical system of MOIRCS (Multi-Object near InfraRed Camera and Spectrograph) for Y-, J-, H- and K- band observations.
Ebizuka, Noboru   +14 more
core   +1 more source

Electrochemically Driven Dissipative Growth of Affinity Hydrogels for Bioresponsive Interfaces

open access: yesAdvanced Functional Materials, EarlyView.
Voltage pulses drive the growth and reinforcement of hydrogel films under dissipative conditions. This biocompatible strategy enables efficient integration of affinity ligands into the hydrogel matrix, enhancing the selective capture of growth factors and allowing precise temporal control over their release, making them well‐suited as adaptive ...
Roberto Baretta, Marco Frasconi
wiley   +1 more source

ANALISA -KAROTEN PADA WORTEL(Daucus carota) DENGAN MENGGUNAKAN SPEKTROFOTOMETER TAMPAK (Analitiycal -Karoten of carrots (Daucus carota) using spectrophotometer Visible) [PDF]

open access: yes, 2015
β-carotene is a carotenoid that is most often found in higher plants and cause the roots of carrots orange. Determination of β-carotene levels in plant tissue is done by extracting β-carotene with non-polar solvents such as alcohol, acetone or methanol
TAQIYUDDIN, M ZIYAD
core  

From Single Atoms to Nanoparticles: Pathways Toward Efficient and Durable Pt/TiO2 Photocatalysts

open access: yesAdvanced Functional Materials, EarlyView.
Platinum single atoms on TiO2 nanosheets evolve into clusters and nanoparticles under ethanol photoreforming and thermal treatments. By controlling deposition and post‐treatments, particle size and location on specific facets are modulated. The study reveals how stability pathways determine efficiency, guiding the design of more durable photocatalysts.
Juan José Delgado   +6 more
wiley   +1 more source

Evaluation of the Color Stability of Three Resin-Ceramic Materials Using a Spectrophotometer and a Digital Photography Software

open access: yesContemporary Clinical Dentistry
Background: Computer-aided design/computer-aided manufacturing (CAD/CAM) resin ceramics allow easier milling than glass ceramics but are suspected to be more stainable.
Nicolas Naffah   +3 more
doaj   +1 more source

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