Results 51 to 60 of about 49,683 (297)

Electrochemically‐Assisted Low Power Density Laser Writing on Stainless Steel via Enrichment of Chromium Oxides

open access: yesAdvanced Materials Interfaces, EarlyView.
This research describes the invention of a new method to color the surface of stainless steel with brown to blue hues at micron resolution using a low‐power laser. This method is safer and lower cost than previous methods. The study determines that the main coloring compound is chromium oxide.
Zechariah J. Pfaffenberger   +4 more
wiley   +1 more source

High-Precision UBVRI Photometry with a New 50 Cm Telescope at Stará Lesná

open access: yesOpen Astronomy, 2003
The paper presents the experience, observations and results obtained with the new 50 cm photometric telescope at the Stará Lesná Observatory equipped with an SBIG ST10MXE CCD camera.
Pribulla T., Chochol D.
doaj   +1 more source

Atmospheric Cold Plasma Technology Enabling Scalable Surface‐Independent Protein Immobilization for Biosensing Applications

open access: yesAdvanced Materials Interfaces, EarlyView.
Standardized surface‐independent immobilization of biosensing layers by means of COOH linker‐layer using plasma polymerization under atmospheric pressure conditions, with the potential for commercialization. PMMA is successfully biofunctionalized with streptavidin, IgG, and protein G, showing stable performance for at least one month.
Lieze Dankers   +9 more
wiley   +1 more source

Principles and Applications of the Synchronous Network of Remote Telescopes

open access: yesOpen Astronomy, 2003
A new approach for the search of microvariability and high-speed phenomena in variable stars is presented. It gives a new technology of observation and analysis of the data.
Zhilyaev B. E.   +3 more
doaj   +1 more source

Enhanced Stability of Cd‐Free Quantum Dot Light‐Emitting Diodes via Yttrium Acetate‐Modified ZnMgO: Suppressing Mg Migration

open access: yesAdvanced Optical Materials, EarlyView.
A surface passivation strategy using yttrium acetate to suppress Mg ion migration from the ZnMgO electron transport layer is proposed. This treatment restores oxygen vacancies on the ZnMgO surface, enhancing device stability. The Cd‐free quantum dot light‐emitting diodes demonstrate a 65.5% increase in operational lifetime with an external quantum ...
Hansol Choi   +3 more
wiley   +1 more source

Engineering Electron Transfer Flux between Cytochrome P450 Enzyme and P450 Reductase to Enhance Serotonin Production in Escherichia Coli

open access: yesAdvanced Science, EarlyView.
The electron transfer flux in CPR‐P450 catalytic system is systematically engineered through: i) enhancing electron transfer rate by redesigning the putative electron transfer pathway of CPR; ii) improving electron‐receiving rate by evolving the heme domain of tryptophan‐5‐hydroxylase (T5H); iii) enlarging electron supply by fine‐tuning NADPH synthesis.
Wenzhao Xu   +4 more
wiley   +1 more source

Dual-Star Photometer at the Tallinn Observatory

open access: yesOpen Astronomy, 2003
We briefly describe the dual-star photometer designed by P. Kalv, a former director of Tallinn Observatory (1934-2002) for multicolor photometry of close binaries and intrinsic variable stars.
Kalv P., Harvig V., Aas T., Pustylnik I.
doaj   +1 more source

Kindlin Regulates Mechanosensitive Activation and Adhesion Assembly of Integrin beta6

open access: yesAdvanced Science, EarlyView.
Extracellular matrix compliance plays a critical role in the regulation of integrin‐mediated adhesion and cell motility. Here, it is reported that strengthening the kindlin2‐integrin β6 interaction overcomes the dependence on extracellular substrate stiffness and promotes integrin β6‐mediated cell migration.
Wan Ning Lee   +3 more
wiley   +1 more source

TRIPP: An Aperture Photometry Package for the Reduction of CCD Time Series Images

open access: yesOpen Astronomy, 2003
TRIPP is an aperture photometry program designed with the purpose of extracting light curves from large sets of similar CCD frames typically obtained during time-resolved photometric monitoring campaigns such as, for example, WET runs.
Schuh S. L.   +3 more
doaj   +1 more source

PHOTOMETRIC STEREO SHAPE-AND-ALBEDO-FROM-SHADING FOR PIXEL-LEVEL RESOLUTION LUNAR SURFACE RECONSTRUCTION [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2017
Shape and Albedo from Shading (SAfS) techniques recover pixel-wise surface details based on the relationship between terrain slopes, illumination and imaging geometry, and the energy response (i.e., image intensity) captured by the sensing system ...
W. C. Liu, B. Wu
doaj   +1 more source

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