Results 131 to 140 of about 485,760 (336)

Waste‐Free Closed‐Loop‐Recyclable and Thermally Superinsulating Polyimide Aerogels Utilizing Diels‐Alder Chemistry

open access: yesAdvanced Materials, EarlyView.
A synthetic protocol for thermally recyclable poly(amide‐imide) aerogels based on Diels–Alder chemistry is presented. Prepared from furan‐modified poly(amide‐imide) and bismaleimide, these aerogels offer thermal superinsulation and excellent thermo‐mechanical performance.
Yufei Xiong   +5 more
wiley   +1 more source

The Blue Horizontal-branch Stars from the LAMOST Survey: Atmospheric Parameters

open access: yesThe Astrophysical Journal Supplement Series
Blue horizontal-branch (BHB) stars are crucial for studying the structure of the Galactic halo. Accurate atmospheric parameters of BHB stars are essential for investigating the formation and evolution of the Galaxy.
Jie Ju   +6 more
doaj   +1 more source

Metallicity of Globular Cluster NGC 5053 from VI CCD Photometry [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2001
Red giant branch shape and the luminosity of horizontal branch on the (V-I)-V CMD are used to derive the metallcity of the globular cluster NGC 5053. The metallicities of NGC 5053 derived by SMR method ([Fe/H]=-2.62+-0.07) and the relation between [Fe/H]
Young-Jong Sohn
doaj  

Halide Perovskite Memristor Crossbar Arrays for Low Voltage in Memory Computing

open access: yesAdvanced Materials Interfaces, EarlyView.
From early devices to centimeter‐scale crossbars, halide‐perovskite memristors now deliver ultra‐low‐energy, multilevel switching. Yet ion migration, device variability, and sneak currents hinder scaling. Advances in self‐rectifying junctions, nonlinear interfaces, bias maps, and hybrid oxides enhance array stability.
Hyojung Kim
wiley   +1 more source

Configurable 3D‐Printed Microstructured Stamp as a User‐Friendly Tool for Versatile Patterning of Low‐Viscosity Bioinks

open access: yesAdvanced Materials Technologies, EarlyView.
A technique for precise patterning of highly biocompatible, low‐viscosity bioinks, such as fibrin, is crucial for recapitulating the physical organization of tissues. In this study, a configurable 3D‐printed microstructured stamp with micropillars is used to control the spatial arrangement of low‐viscosity bioinks and to assess cellular interactions ...
Yejin Choi, Soo Jee Kim, Je‐Kyun Park
wiley   +1 more source

3D‐Printed Unibody Microfluidic Devices for Organ‐on‐Chip Applications

open access: yesAdvanced Materials Technologies, EarlyView.
A practical approach is demonstrated to 3D printing unibody microfluidic Organ‐on‐Chip (OoC) devices using commercial resins and desktop DLP printers. The demonstrated functional devices support 2D monolayers, 3D spheroids, and barrier tissues. With optimised design and post‐processing techniques, leak‐free, biocompatible microchannels and membranes ...
Louis Jun Ye Ong   +8 more
wiley   +1 more source

Extreme Horizontal Branch Stars

open access: yes, 2008
Proceeding of the meeting" XXI Century Challenges for Stellar Evolution" S. Cassisi & M. Salaris eds., Mem. Soc. Astr. It., Vol. 79, N. 2., in press,
openaire   +2 more sources

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