Results 41 to 50 of about 807 (117)

Structural Colors from Modulated Topological Defects in Molecular Smectic Liquid Crystals

Advanced Science, EarlyView.
Rather than using dyes and pigments, nature produces the colors of some butterflies and beetles through optical interference phenomena. This study describes an original biomimetic strategy exploiting the spontaneous formation of modulated linear defects in thin films of 8CB, a common molecular liquid crystal.
Camille N. Mahyaoui, Guilhem Poy, Rabab Zehra, Axel Fouques, Vassili Sergan, Ivan Dozov, Claire Meyer, Patrick Davidson   +7 more
wiley   +1 more source

Terahertz‐Nanoscale Visualization of the Microscopic Spin‐Charge Architecture of Colossal Magnetoresistive Switching

Advanced Science, EarlyView.
This study employs cryogenic magneto‐terahertz nanoscopy to reveal the real‐space electrodynamics of the colossal magnetoresistance transition. By capturing the terahertz electrodynamic evolution of field‐driven spin switching, the work unveils the dissipative dynamics of emergent metallic states, providing a high‐frequency view of coupled spin‐charge ...
Samuel Haeuser, Randall K. Chan, Richard H. J. Kim, Joong‐Mok Park, Martin Mootz, Thomas Koschny, Jigang Wang   +6 more
wiley   +1 more source

Stochastic Entanglement of Deterministic Origami Tentacles For Robust Robotic Grasping

Advanced Science, EarlyView.
This study introduces an origami tentacle gripper to robustly grasp objects‐in air, underwater, and even in orbital space‐by exploiting a synergy between local, deterministic deformation programming and global, stochastic entanglements. A single origami tentacle can be designed to coil with a simple tendon pull.
Alec Boron, Bokun Zheng, Ziyang Zhou, Noel Naughton, Suyi Li   +4 more
wiley   +1 more source

Further Evidences for the Sulfur Spillover on Carbon: Thermodynamic Aspects and Effects on Li‐S Solid‐State Batteries

Advanced Science, EarlyView.
ABSTRACT This study investigates sulfur spillover, the spontaneous and rapid spread of sulfur over carbon surfaces at ambient temperature. The process is studied by small‐angle X‐ray scattering (SAXS), X‐ray radiography, and microcalorimetry from which a number of physicochemical properties are derived.
Francesco Piccolo, Anka Berger, Sebastian Risse, Román Healy Corominas, Wilhelm Erth, Florian Fuchs, Jesus Andrade, Jörg Schuster, Marc Armbrüster, Philipp Adelhelm   +9 more
wiley   +1 more source

Boron and Nitrogen Doped Single walled Carbon Nanotubes as Possible Dilute Magnetic Semiconductors

Nanoscale Research Letters, 2007
The structure of single walled armchair and zig-zag carbon nanotubes having 70 atoms and two carbons replaced by boron or nitrogen is obtained at minium energy using HF/6-31G* molecular orbital theory.
Owens Frank
doaj   +1 more source

Evaluation of the ZIG-ZAIDS game: an entertaining educational tool for HIV/Aids prevention Avaliação do Jogo ZIG-ZAIDS - um recurso lúdico-educativo para informação e prevenção da AIDS entre pré-adolescentes

Cadernos de Saúde Pública, 1999
This article presents the evaluation process for the ZIG-ZAIDS game, investigating the material's applicability in formal and informal educational contexts, i.e., how the game has been used by health professionals, parents, and the target population (pre-
Virgínia T. Schall, Simone Monteiro, Sandra M. Rebello, Maysa Torres   +3 more
doaj   +1 more source

A Memristor‐Based In‐Memory Computing System‐on‐Chip with Efficient Depthwise Convolution

Advanced Intelligent Systems, EarlyView.
We present a memristor‐based in‐memory computing (IMC) architecture that enables efficient depthwise convolution (DWC) acceleration. Fabricated in a system‐on‐chip with crossbar arrays, the design improves memory utilization. Experimental validation demonstrates the first hardware acceleration of DWC in IMC, achieving a digital comparable inference ...
Wenhao Song, Fuxi Cai, Sangsu Park, Zhaoyan Li, Seonghun Lee, Mingyi Rao, Woohyung Choi, Seungin Shin, Yan Zhu, Sujin Chae, Myoungsub Kim, Mingche Wu, Hyejung Choi, Yuan Dao, Jaeyun Yi, Youngman Cho, Seon Yong Cha, Ning Ge, Qiangfei Xia, Soo Gil Kim, Miao Hu, J. Joshua Yang   +21 more
wiley   +1 more source

Toward Fully Soft and Multifunctional Shape Sensing via Optical Waveguide Arrays

Advanced Intelligent Systems, EarlyView.
This work develops a sheet made with arrays of soft optical fibers that can reconstruct its 3D surface shape. Synergy of the waveguides’ responses to bending and pressing force allows shape reconstruction with resilience to damage. Applied onto surfaces of robotic or living systems, our design can be implemented in virtual reality, teleoperation ...
Qifan Yu, Nina Cao, Kaitlyn Becker
wiley   +1 more source

Posebna zaštita dobro poznatih i čuvenih žigova

Zbornik Pravnog Fakulteta Sveučilišta u Rijeci, 2007
U ovom radu autor pažnju posvećuje posebnim kategorijama žigova – dobro poznatim i čuvenim žigovima. Uz pobliže označavanje i definiranje ovih vrsta žigova, daje se vrlo precizna analiza kriterija razlikovanja čuvenih žigova od drugih običnih žigova, uz ...
Dragan Zlatović
doaj  

Nusselt number and friction factor in zig-zag microchannels subjected to constant heat flux

International Journal of Thermofluids
This study quantifies the heat transfer coefficient, pressure drop, Nusselt number and friction factor associated with flow of water in zig-zag microchannels, with square cross-section and sharp edges, when subjected to constant heat flux boundary ...
Bobby Mathew, Fadi Alnaimat, Abdualla Gulam Hussain, Saleh Atatreh, Braa Mohamad Salim Kakah, Yazan Abdelrahman Ali   +5 more
doaj   +1 more source