Results 81 to 90 of about 528,042 (304)

Optimizing Graphene Oxide Interlayer Spacing for Zeolitic Imidazolate Framework‐8 Growth Toward Enhanced Shale Oil Separation

Advanced Science, EarlyView.
Quaternary ammonium salts are used to control the spacing between GO layers, enabling in situ growth of ZIF‐8. The resulting ZIF‐8‐GO membrane exhibits nearly complete rejection of n‐docosane in n‐hexane, solvent permeance of 16.4 ± 0.8 L m−2 h−1 bar−1, and enriches alkanes and aromatics with a molecular weight cut‐off of 310 g mol−1 in shale oil ...
Hang Wang, Longyu Wang, Zhibang Liu, Yu Cheng, Wen Jiang, Xiaopeng Sun, Chuan‐De Wu   +6 more
wiley   +1 more source

Unconventional Fast Room Temperature Synthesis of Covalent Organic Framework Single Crystals Unveiling Precise Structural Insights

Angewandte Chemie, EarlyView.
This work presents a fast, room‐temperature synthesis of single‐crystalline, highly fluorinated 2D covalent organic frameworks (COFs). We achieved the growth of 3‐micron‐long COF rods, enabling the precise study of their mechanical properties and aggregation states.
Miguel Jiménez‐Duro, Marcos Martínez‐Fernández, Jorge J. Cabrera‐Trujillo, Eva Osuna, Miguel Fernández‐Ramos Humanes, Cristina Gómez‐Navarro, Julio Gómez‐Herrero, Félix Zamora, José L. Segura   +8 more
wiley   +2 more sources

(Non)local Hamiltonian and symplectic structures, recursions, and hierarchies: a new approach and applications to the N=1 supersymmetric KdV equation

, 2004
Using methods of math.DG/0304245 and [I.S.Krasil'shchik and P.H.M.Kersten, Symmetries and recursion operators for classical and supersymmetric differential equations, Kluwer, 2000], we accomplish an extensive study of the N=1 supersymmetric Korteweg-de ...
A Verbovetsky, B?aszak M, Bocharov A V, Dorfman I, I Krasil shchik, Igonin S Verbovetsky A Vitolo R, Kersten P Krasil?shchik I Verbovetsky A, Krasil?shchik I S, Krasil?shchik I S, Krasil?shchik J, Kupershmidt B A, Magri F, Manin Yu I, Marsden J E, Mathieu P, Oevel W, Oevel W, Olver P J, P Kersten, Vinogradov A M   +19 more
core   +2 more sources

Meta‐Dispersive 3D Chromatic Confocal Measurement

Advanced Science, EarlyView.
A dispersive metalens (DML) combined with the chromatic confocal method is achieved for high‐precision 3D measurement in this study. This approach enables both high axial and lateral resolutions in compact optics. The development offers a promising route toward precise, miniaturized depth sensing for future applications in microstructure inspection and
Jiajun Wu, Jin Yao, An Ren, Zhizheng Ju, Rong Lin, Zhihui Wang, Wule Zhu, Bingfeng Ju, Din Ping Tsai   +8 more
wiley   +1 more source

Size‐Selective Functionalization of Sugars and Polyols Using Zeolites for Renewable Surfactant Production

Angewandte Chemie, EarlyView.
A zeolite‐catalyzed strategy enables size‐selective monoacetalization of sugars and polyols in a single step by leveraging pore confinement to distinguish between mono‐ and multi‐substituted species. This broadly applicable method avoids protection steps and excess reagents, opening new routes to bio‐based amphiphiles with strong surface activity and ...
Songlan Sun, Zezhong John Li, Yu‐Cheng Lin, Manon Rolland, Tom Nelis, Seongmin Jin, Shasha Zheng, Benjamin Nicolas Raffy, Wen Hua Bi, Esther Amstad, Jeremy S. Luterbacher   +10 more
wiley   +2 more sources

A Caputo–Fabrizio fractional differential equation model for HIV/AIDS with treatment compartment

Advances in Differential Equations, 2019
In recent years, many new definitions of fractional derivatives have been proposed and used to develop mathematical models for a wide variety of real-world systems containing memory, history, or nonlocal effects.
Elvin J. Moore, Sekson Sirisubtawee, S. Koonprasert   +2 more
semanticscholar   +1 more source

Switchable Bidirectional Sound Absorption Via Exceptional Point Modulation in Acoustic Metastructures with Interleaved Resonator Coupling

Advanced Science, EarlyView.
A switchable bidirectional acoustic metastructure is proposed, enabling broadband and frequency‐selective absorption via interleaved resonator coupling and exceptional point modulation. It outperforms traditional unidirectional designs, offering compact, efficient sound control from both directions and establishing a generalized framework for extending
Zichao Guo, Liangfen Du, Zirui Yang, Kexin Zeng, Ziping Lei, Zhonggang Wang, Zhendong Li, Zheng Fan   +7 more
wiley   +1 more source

Exploring barriers to utilizing local agricultural products in the catering industry

Agribusiness, EarlyView.
Abstract Both the proportion and expenditure of dining out and takeaway in Taiwan have been increasing year by year. This study investigates the factors influencing the catering service providers (CSPs) procurement of domestically produced or imported food materials.
Wan‐Yu Liu, Hsing‐Wei Lin, Chun‐Cheng Lin   +2 more
wiley   +1 more source

Система Эйнштейна-Эренфеста для уравнения Фоккера-Планка [PDF]

, 2015
For solutions of the nonlocal Fokker-Plank equation the system of Einstein-Erenfest has been obtained in the class of semiclassically concentrated on k-dimensional manifold in n-dimensional space function.
Иванов, Дмитрий Андреевич
core  

Small but Strong: Lightweight Architecture Improves Lung Nodule Detection and Segmentation

Advanced Intelligent Systems, EarlyView.
(a) Separated network architecture, where the lung nodule detection and segmentation networks are separated. (b) Separated head architecture, where an anchor‐based head is responsible for detection and another head for segmentation. (c) The study's architecture, containing a lightweight backbone network based on deformable Transformer for feature ...
Lilu Liu, Xiuping Nie, Haojian Lu, Jian Hu, Qi Dou, Rong Xiong, Yue Wang   +6 more
wiley   +1 more source