Results 171 to 180 of about 6,397 (300)

Autonomous X‐Ray Fluorescence Mapping for Nanoscale Chemical Speciation of Fine Particulate Matter

Advanced Intelligent Discovery, EarlyView.
We present X‐AutoMap, an autonomous X‐ray fluorescence mapping framework that integrates real‐time analysis with rule‐based computer vision to selectively target chemically relevant regions. By avoiding background‐dominated areas, the method reduces acquisition time by fourfold while enabling accurate particle‐level speciation.
Carlos Deleon, Dmitri Gavrilov, Peggy O’Day, Ajith Pattammattel   +3 more
wiley   +1 more source

Expanding the DNA Nanotechnology Toolbox: Hierarchical Assembly and Self‐Sorting of DNA Tiles With Precisely Controlled Hydrophobic Behavior

Angewandte Chemie, EarlyView.
DNA tile amphiphiles encode dual chemical information, directing nanostructure formation through base‐pairing and hydrophobic effects. Thermal annealing programs hierarchical assembly, with first‐formed interactions biasing the final morphology: short hydrophobic chain strands form DX‐tiles and then into stars, while long‐chain strands form SNAs and ...
Yihao Wu, Muhammad Ghufran Rafique, Christopher Saab, Hanadi Sleiman   +3 more
wiley   +2 more sources

Softening Locally Polyhedral Tilings. [PDF]

J Nonlinear Sci
Ambrus G, Dancsó D.
europepmc   +1 more source

Interpretable Machine Learning for Bandgap Prediction and Descriptor‐Guided Design Rules of Phosphates

Advanced Intelligent Discovery, EarlyView.
An explainable CatBoost model was trained to predict the bandgaps of 474 phosphate crystals based on composition and density descriptors. SHAP analysis identified two key variables—d‐electron‐count dispersion and atomic‐density dispersion—as the primary drivers of the model's predictions.
Wenhu Wang, Abudukadi Tudi, Ran An, Zhihua Yang   +3 more
wiley   +1 more source

pH‐Driven Actuation of Unmodified DNA Origami Rectangles

Angewandte Chemie, EarlyView.
Unmodified DNA origami rectangles exhibit a reversible transition between planar and tubular states driven by near‐neutral pH changes. This behavior arises from crossover‐mediated mechanical coupling of overwound DNA and extends to dimers and nanoribbons, enabling the formation of nanotube architectures without added motifs or chemical modification ...
Diego A. Uehara, Yasmin H. Khazid, Willi R. Berg, Veronika Valova, Felix J. Rizzuto   +4 more
wiley   +2 more sources

Combinatorial substitutions and sofic tilings

, 2010
A combinatorial substitution is a map over tilings which allows to define sets of tilings with a strong hierarchical structure. In this paper, we show that such sets of tilings are sofic, that is, can be enforced by finitely many local constraints.
Ollinger, Nicolas, Fernique, Thomas
core   +1 more source

Renormalization techniques for inflation systems and some of their applications. [PDF]

Acta Crystallogr A Found Adv
Baake M, Gähler F, Klick A, Mañibo N, Mazáč J.   +4 more
europepmc   +1 more source

Energy‐Aware Perturbation Optimization for Memristor‐Array Convolutional Neural Networks

Advanced Intelligent Systems, EarlyView.
Memristor‐array inference becomes more energy efficient when layer inputs are reshaped before computation. Sinusoidal perturbation encoding with dual‐threshold screening reduces active voltage pulses and contracts ADC input‐current ranges, jointly lowering crossbar and peripheral energy while preserving accuracy across hardware MNIST validation, deep ...
Ao Xu, Lun Lu, Youpeng Wu, Yao Guo, Yi Li, Yinan Wang, Qingjiang Li   +6 more
wiley   +1 more source

3D Liquid Crystal Framework Enclosing Dual Compartments

Angewandte Chemie, EarlyView.
A new type of liquid crystal phase is reported, having the conjugated rod‐like molecular cores form a 3D framework of elongated octahedral cages filled alternatively with alkyl and fluoroalkyl pendant chains. The cages are held together by flexible H‐bonding hinges, making them adaptable to thermal expansion and stable in a wide temperature range.
Yang‐yang Zhao, Huan‐jun Lu, Helgard Ebert, Xiang‐bing Zeng, Chunlan Ma, Feng Liu, Carsten Tschierske, Goran Ungar   +7 more
wiley   +2 more sources

Structural insights into a rhombic Penrose tiling variant abundant in five-petaled flower motifs. [PDF]

Sci Rep
Fujita N, Niizeki K.
europepmc   +1 more source