Results 71 to 80 of about 10,005,542 (236)

Computation‐Less, Bias‐Free, and Ultra‐Broadband Photodetector for On‐Chip Edge Extraction

open access: yesAdvanced Materials, EarlyView.
A computation‐less, bias‐free, and ultra‐broadband photodetector directly converts local optical‐intensity gradients into signed photocurrents through a position‐dependent bi‐directional photoresponse. This intrinsic physical sensing mechanism enables single‐pixel edge extraction from the near‐infrared to the long‐wave infrared at room temperature ...
Jintao Fu   +8 more
wiley   +1 more source

Achieving High Spatial Resolution Transmission Electron Microscopy Studies in Closed Liquid Cells

open access: yesAdvanced Materials, EarlyView.
Achieving high spatial resolution is important for resolving nanoscale dynamic processes and structural transformations in liquid environments, yet remains challenging in liquid cell transmission electron microscopy (LCTEM). This review highlights key strategies, including mitigating membrane bulging, displacing or redistributing local liquid ...
Siqi Guo   +9 more
wiley   +1 more source

Coronal Diagnostics via Modeling Periodic-beaded Stripes of Solar Radio Bursts

open access: yesThe Astrophysical Journal
Using high-resolution data from the Chashan Broadband Solar Radio Spectrometer at meter wavelengths of the Chinese Meridian Project—Phase II, C. Li et al.
Chuanyang Li   +13 more
doaj   +1 more source

Reactivity‐Guided Janus Graphene With Asymmetric Interfacial Electrostatics for Tunable Charge Transport

open access: yesAdvanced Materials, EarlyView.
Stepwise dual‐side functionalization creates covalent Janus graphene with chemically and electrostatically asymmetric interfaces. The resulting nonadditive surface‐potential response and pronounced charge‐transport modulation demonstrate a versatile route for tailoring the electronic properties of graphene.
Shishi Liu   +14 more
wiley   +1 more source

Auroral Ionosphere Responses to Solar Wind Perturbations: A Case Study Utilizing the Polar Regions Monitoring Subsystem of the Chinese Meridian Project

open access: yesSpace Weather
The Earth's polar regions serve as a natural conduit for solar wind energy and momentum, transferring this energy into the geospace and driving complex magnetosphere‐ionosphere‐thermosphere coupling processes that have significant global space weather ...
Jianjun Liu   +9 more
doaj   +1 more source

Wrecked Y.M.C.A. Building, Meridian, Miss.

open access: yes, 2019
Image of the aftermath of the 1906 tornado in Meridian, MShttps://egrove.olemiss.edu/rayburn/1454/thumbnail ...
G. M. Heiss & Son (Meridian, Miss.)
core  

Reducing Interfacial Separation Force in High‐Speed Constrained‐Surface Projection Stereolithography Using a Dual‐Modulus Silicone Release Film

open access: yesAdvanced Materials Interfaces, EarlyView.
A dual‐modulus silicone release film creates distributed stress concentrations at high‐/low‐modulus boundaries, triggering multi‐site crack initiation and rapid interfacial detachment. The architecture lowers the peak separation force by 97.6%, shortens detachment time, and enables stable continuous projection stereolithography at 720 mm h−1, offering ...
Xiaogang Li   +3 more
wiley   +1 more source

From the Discovery of the Giant Magnetocaloric Effect to the Development of High‐Power‐Density Systems

open access: yesAdvanced Materials Technologies, EarlyView.
The article overviews past and current efforts on caloric materials and systems, highlighting the contributions of Ames National Laboratory to the field. Solid‐state caloric heat pumping is an innovative method that can be implemented in a wide range of cooling and heating applications.
Agata Czernuszewicz   +5 more
wiley   +1 more source

Micropillar‐Engineered Hybrid Adhesive Patch for Surface‐Conformable and Directional Adhesion

open access: yesAdvanced Materials Technologies, EarlyView.
This work presents a surface‐conformable hybrid adhesive integrating height‐optimized hexagonal micropillars with open‐rectangular cuts. The micropillars enhance rough‐surface contact and microscale crack arrest, while the cuts guide and reverse interfacial cracks for strong and directional adhesion. The multiscale architecture achieves robust pull‐off
Seongjin Park   +4 more
wiley   +1 more source

An investigation on the wind profiles and gravity wave dynamics in MLT region based on the meteor radars from the Meridian Project

open access: yesEarth and Planetary Physics
The meteor radar can detect the zenith angle, azimuth, radial velocity, and altitude of meteor trails so that one can invert the wind profiles in the mesosphere and low thermosphere (MLT) region, based on the Interferometric and Doppler techniques.
Tai Liu   +4 more
doaj   +1 more source

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