Results 211 to 220 of about 1,119,730 (249)

Architected Load Paths Enable Stiffening and Motion Programming in Soft Pneumatic Actuators

Advanced Science, EarlyView.
A single MARS template introduces an architected reinforcement strategy for programmable soft pneumatic actuators through internal structural organization and selective beam removal. This monolithic architecture enables deformation reconfiguration from continuous bending to joint‐like articulation and torsional motion, allowing one compliant platform ...
Jie Wang, Yuwen Wu, Yuze Zhang, Ye Wei, Yuting Ma, Yingxiang Liu, Kai Guo   +6 more
wiley   +1 more source

Retrospective Grid Cells in the Medial Entorhinal Cortex Encode Past Paths During Spatial Navigation

Advanced Science, EarlyView.
Retrospective grid cells are identified in the medial entorhinal cortex, with spatial firing patterns that become most grid‐like when activity is projected onto recently traversed locations. Their coding loses spatial precision in darkness and is disrupted during assisted movement, indicating that entorhinal representations incorporate recent path ...
Ruojin Liu, Xin Yuan, Zilong He, Hong Jin, Jiayi Tian, Cong Chen, Yuanjing Liu, Xiang Zhang, Shidan Wen, Emilio Kropff, Chenglin Miao   +10 more
wiley   +1 more source

Functional MXene Inks for Printed Electronics: Chemistry, Rheology, and Devices

Advanced Science, EarlyView.
Functional MXene inks are emerging as building blocks for MXetronics, connecting MXene synthesis, surface functionalization, ink formulation, and advanced printing with device‐level applications. This review maps how composition, stability, rheology, and processability govern printed structures and enable high‐performance sensors, energy‐storage ...
Shahzaib Ali, Faisal Shahzad, Hamza Hussain, Muhammad Abbas, Dae‐Hyun Cho, Doyoung Byun, Hassan A. Arafat   +6 more
wiley   +1 more source

Pt‐Regulated Dynamic Cu(0) Regeneration in CuPt Alloy Enables High‐Efficiency Self‐Driven Formaldehyde Fuel Cells for Potassium Formate Production

Advanced Science, EarlyView.
In this work, a Cu30PtX/CF anode material was synthesized to effectively catalyze the electrocatalytic formaldehyde oxidation, and thereby assembled a fuel cell that offered a high open‐circuit potential of 0.94 V and a power density of 34.3 mW cm−2. This work realizes the co‐generation of electrical energy and high‐value‐added chemicals with nearly ...
Hanxu Hou, Yan Zhou, Weixiang Tang, Desheng Sui, Siman Tao, Xiaohan Li, Hui Zhang, Jiawei Qiang, Wenle Li, Jun Zhang   +9 more
wiley   +1 more source

Bio‐Inspired Gradient Heterogeneous Architectures for Ultrasensitive and Robust Strain Sensors via Programmable Crack Engineering

Advanced Science, EarlyView.
Inspired by the insect campaniform sensillum, a heterogeneous bilayer strain sensor is developed based on a unique impedance mismatch and three‐dimensional structural dynamic percolation strategy. The sensor enables real‐time multi‐joint teleoperation of three joints and the gripper using a six‐degree‐of‐freedom robotic‐arm platform.
Qi Wu, Tiantong Wang, Yinhao Wang, Yanggang Feng, Yan Huang   +4 more
wiley   +1 more source

Wearable E‐Textiles for Cardiovascular Monitoring: Materials, Devices, and Integrated Systems

Advanced Science, EarlyView.
The graphical abstract highlights the role of conductive materials and textile fabrication techniques in enabling smart textiles for cardiovascular applications. It showcases textile‐based ECG monitoring, pulse sensing, hemodynamic monitoring, and cardiovascular tissue engineering, while emphasizing the challenges and design considerations that govern ...
Bangul Khan, Mahmoud Tavakoli, Norbert Radacsi, Bee Luan KHOO   +3 more
wiley   +1 more source

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Analysis of Sequences of Twist Angles in DNA Double Helix

International Journal of Biological Macromolecules, 1989
By assuming that the realistic DNA chains are random sequence of bases and using the Tung-Harvey formula for the prediction of twist angles, it is shown that the mean value of the sequence of twist angles is almost sequence-independent. In general the variance for the A, T-rich sequence is larger than that of G, C-rich sequence.
Chun-Ting Zhang, C T Zhang
exaly   +3 more sources

Optimal twist angle for a graphene-like bilayer

Journal of Physics: Condensed Matter, 2023
Abstract The first optimal—or ‘magic’—angle leading to the nullity of the Dirac/Fermi velocity for twisted bilayer graphene is re-evaluated in the Bistritzer–MacDonald set-up (Bistritzer and MacDonald 2011 Proc. Natl Acad. Sci. 108 12233–7).
August Romeo, Hans Supèr
openaire   +2 more sources

High-angle twist in GaSe

Philosophical Magazine, 1971
Crystals of GaSe grown by transport reaction with iodine were found to contain high-angle twist boundaries perpendicular to their c axis. A simple model is proposed which affords the twist boundary energy in layer structures such as GaSe and MoS2 to be calculated numerically.
E. Mooser, M. Schluter
openaire   +1 more source

Double-twisted nematic director configurations in cylindrical capillaries with a photocontrollable angle of twist

Physical Review E, 2021
The orientational configurations of thermotropic nematic liquid crystal in cylindrical capillaries with nondegenerated planar surface anchoring are investigated. The boundary conditions were determined by a photoaligning coating on the inner wall of the capillary treated with a linearly polarized UV light while rotating the capillary around its long ...
A. Nych, R. Kravchuk, U. Ognysta, M. Ledney, O. Yaroshchuk   +4 more
openaire   +2 more sources