Results 131 to 140 of about 408,744 (292)

Architected Spatially Deterministic Multiscale Phase Segregation in Block Copolymer Composites for Augmented Radiative Cooling

Advanced Science, EarlyView.
Multiscale phase segregation in block copolymers enables spatially deterministic structuring from molecular to macroscopic scales, decoupling solar scattering and infrared emission for augmented radiative cooling. ABSTRACT Passive radiative cooling, which reflects solar irradiation while emitting heat through the atmospheric window, provides a ...
Mingxin Feng, Feiyang Zhou, Haoran Cai, Wenchao Zhai, Shuangjiang Feng, Yanmei Liu, Xiaohai Bu, Man He, Dudong Feng, Shuang Liang, Yuming Zhou   +10 more
wiley   +1 more source

Vortex-induced extinction behavior in methanol gaseous flames: a comparison with quasi-steady extinction [PDF]

, 2000
Using a combination of HCHO planar laser-induced fluorescence and laser Doppler velocimetry measurements, the extinction behavior of methanol counterflow diffusion flames was examined experimentally under conditions in which the extinction was brought ...
Gomez, Alessandro, Kyritsis, D.C., Santoro, Vito S., Liñán Martínez, Amable   +3 more
core  

Vine‐Inspired Soft Robotics: Materials, Actuations, and Emerging Applications

Advanced Science, EarlyView.
Vine‐inspired robots grow from the tip, enabling navigation through confined spaces with minimal disturbance. This Review summarizes material and actuation strategies for vine‐inspired growth, key functions including steering, retraction, attachment, branching, and variable stiffness, and emerging applications spanning medical intervention, confined ...
Jiahao Wu, Xingyun Liu, Fangzhou Wang, Huili Ren, Chaojun Zhang, Ziyu Ren, Zunqi Liu, Jing Li   +7 more
wiley   +1 more source

Q‐LEAP: Millisecond Hyperdimensional Optimization for Full‐Spectrum Optical Metamaterials

Advanced Science, EarlyView.
Q‐LEAP integrates physics‐informed residual machine learning with factorization‐machine‐encoded quantum annealing to design full‐spectrum optical metamaterials. It explores a 2108 design space and, in a single 2.56 ms annealing step, reaches 85.83% of the theoretical FoM limit, enabling selective 5‐8 µm emission with 3–5 and 8–14 µm suppression and ∼40×
Zikang Guo, Yunwen Wu, Yuhui Guo, Shenghong Ju   +3 more
wiley   +1 more source

Near‐Unity Photothermal Conversion in Bimetallic M44 and M81 Nanoclusters Enables NIR‐Driven Photo‐Thermo‐Electricity Generation

Advanced Science, EarlyView.
Atomically precise nanoclusters of Au/Ag alloys are explored as high‐performance photothermal materials, delivering record‐high photothermal efficiencies (up to 91%). Photo‐thermo‐electricity is further demonstrated by integrating nanocluster films with thermoelectric devices.
Avirup Sardar, Abhrojyoti Mazumder, Weijie Ji, Guiying He, Yitong Wang, Lianshun Luo, Sihan Chen, Rongchao Jin   +7 more
wiley   +1 more source

The Stripped-star Ultraviolet Magellanic Cloud Survey (SUMS): The Ultraviolet Photometric Catalog and Stripped-star Candidate Selection

The Astrophysical Journal
Most massive stars (∼8–25 M _⊙ ) interact with a binary companion during their lifetimes. These interactions can remove the hydrogen-rich envelope, producing intermediate-mass (∼2–8 M _⊙ ) and helium-rich stars.
B. Ludwig, M. R. Drout, Y. Götberg, D. Lang, A. Laroche   +4 more
doaj   +1 more source

Deglaciation Explains Bat Extinction in the Caribbean [PDF]

, 2012
Ecological factors such as changing climate on land and interspecific competition have been debated as possible causes of postglacial Caribbean extinction.
Dávalos, Lilian M., Russell, Amy L.
core  

Modifying Electrochemical Doping in Light‐Emitting Electrochemical Cells With Gold Nanoparticles

Advanced Science, EarlyView.
This study shows that gold nanoparticles placed at an electrode can control how electrochemical doping occurs in organic electronic devices. Particularly, in light‐emitting electrochemical cells, by shifting the light‐emitting region, device efficiency is improved without altering the emissive material. This approach provides a simple and effective way
Ajay K. Poonia, Anton Kirch, Joan Ràfols‐Ribé, Lucrezia Catanzaro, Anish Rao, Karol Kołątaj, Vittorio Scardaci, Giuseppe Compagnini, Guillermo P. Acuna, Ludvig Edman, Nicolò Maccaferri   +10 more
wiley   +1 more source

Altaid Plateau forced Late Triassic Earth’s freezing state

Communications Earth & Environment
Late Triassic was critical in paving the age of dinosaurs and emergence of modern ecosystems. The end-Triassic mass extinction ( ~201 Ma) was triggered by warming, linked to massive volcanism, yet evidence suggests freezing conditions prevailed before ...
Qigui Mao, Meng Zhang, Zhong-Qiang Chen, Michael J. Benton, Dunfeng Xiang, Chihao Chen, Jun Hu, Qingqing Qiao, Songjian Ao, Dongfang Song, Rui Li, Hao Wang, Miao Sang, Zhou Tan, Yuangeng Huang, Zhen Guo, Ziheng Li, Xincheng Qiu, Wenjiao Xiao   +18 more
doaj   +1 more source

Silica Waveguide Thermo-Optic Mode Switch with Bimodal S-Bend

Nanomaterials
A silica waveguide thermo-optic mode switch with small radius bimodal S-bends is demonstrated in this study. The cascaded multimode interference coupler is adopted to implement the E11 and E21 mode selective output. The beam propagation method is used in
Zhentao Yao, Manzhuo Wang, Yue Zhang, Zhaoyang Sun, Xiaoqiang Sun, Yuanda Wu, Daming Zhang   +6 more
doaj   +1 more source