Results 51 to 60 of about 80,113 (268)

Balancing Hydrophobicity and Hydrophilicity: Dual Filler‐Engineered Proton Exchange Membranes for Durable, High‐Power Fuel Cells

Advanced Functional Materials, EarlyView.
Polarity‐matched Zr–MOFs program Nafion's nanoscale morphology during solution casting. Hydrophilic UiO‐66 preserves hydrated pathways, while hydrophobic UiO‐67 increases the proton hopping sites by densifying ionic clusters. Combining both fillers yields a membrane that delivers 176 mS cm−1 conductivity, reaches 1.46 W cm−2 under 200 kPa, and triples ...
Yonghwi Cho, Yunseong Ji, Minkyu Choi, Junsu Kim, Yejin Kim, Su Jeong Lee, Wooyoung Choi, Choong Hoo Lee, Ju Yeon Kim, Ohchan Kwon, Hanim Kim, Du Yeol Ryu, Ki Chul Kim, Dae Woo Kim   +13 more
wiley   +1 more source

Intravenous Nanoemulsions Loaded with Phospholipid Complex of a Novel Pyrazoloquinolinone Ligand for Enhanced Brain Delivery

Pharmaceutics
Background/Objectives: The novel pyrazoloquinolinone ligand CW-02-79 shows a unique profile of selective binding to σ2 receptors, but its poor solubility in both water and lipids makes its research and development a burdensome task. We aimed to develop a
Tijana Stanković, Tanja Ilić, Branka Divović Matović, Milos Petkovic, Vladimir Dobričić, Ivan Jančić, Biljana Bufan, Kristina Jezdić, Jelena Đoković, Ivana Pantelić, Danijela Randjelović, Dishary Sharmin, James M. Cook, Miroslav M. Savić, Snežana Savić   +14 more
doaj   +1 more source

Mechanical Programming of PEGDA‐β‐CD Polyrotaxane‐Based Hydrogels via Host–Guest Molecular Recognition

Advanced Functional Materials, EarlyView.
A mechanically programmable hydrogel for tissue engineering is developed by modulating the molecular threading density of poly(ethylene glycol) diacrylate‐β‐cyclodextrin (PEGDA‐β‐CD) polyrotaxane and combining it with β‐CD‐modified gelatin. The polyrotaxane‐guided transition from disordered pores to laminar microstructures enables precise tuning ...
Shiyi Chen, Xudan Xing, Haopu Su, Dominik Voll, Xiaohe Xu, Jiafeng Wan, Tongtong Cui, Christian W. Schmitt, Stefan Bräse, Peng Li, Patrick Théato   +10 more
wiley   +1 more source

On cat (X\p)

International Journal of Mathematics and Mathematical Sciences, 1992
The Lusternik-Schnirelmann category of a PL-manifold does not increase if we delete a point of it. This is false in the CW-complex category.
Juan Julian Rivadeneyra Perez
doaj   +1 more source

Euler’s Theorem for Regular CW-Complexes

Combinatorica
For strongly connected, pure $n$-dimensional regular CW-complexes, we show that {\it evenness} (each $(n{-}1)$-cell is contained in an even number of $n$-cells) is equivalent to generalizations of both cycle decomposition and traversability.
Richard H. Hammack, Paul C. Kainen
openaire   +2 more sources

On Cohomology Theories of Infinite CW-complexes, II

Publications of the Research Institute for Mathematical Sciences, 1972
Let h* be an additive cohomology theory and X be a based CWcomplex which is the union of all finite subcomplexes JP-. The subgroups FxA*(JQ=Ker{&*(Jr)-»/&*(Xx)} gives a topology in the cohomology group h*(X). In the second paper pi] with the same title we investigated conditions on /i* and X under which h*(X) is Hausdorff.
Zen-ichi Yosimura, Hidetosi Takahasi
openaire   +5 more sources

Reversible Tuning of Multiple Molecular Kinking for Stem Cell Regulation In Vivo

Advanced Functional Materials, EarlyView.
In this work, we introduce the novel concept of background component‐free “multiple kinks” material platform composed solely of liganded multiple kink‐bearing molecules as a strategy for dynamic biomaterial design. Tri‐kink molecules enable effective near‐infrared light‐triggered ligand masking and visible light‐triggered ligand exposure, thereby ...
Kanghyeon Kim, Jeongah Shin, Chowon Kim, Honghwan Choi, Dahee Kim, Sungkyu Lee, Choongmo Kang, Hyunsik Hong, Taehoon Ha, Nayeon Kang, Jungyeon Rhi, Ramar Thangam, Yuri Kim, Jeongyun Heo, Cheol Hwan Kwak, Jangsun Hwang, Daun Jeong, Rasoul Moradi, Sunghoon Hur, Hyun‐Cheol Song, Hyun‐Do Jung, Min Jae Lee, Rongqin Huang, Pooyan Makvandi, Yun Suk Huh, Ji Hye Choi, Wenguo Cui, Sehoon Kim, Heemin Kang   +28 more
wiley   +1 more source

Spin-wave modes of elliptical skyrmions in magnetic nanodots

New Journal of Physics, 2022
Magnetic skyrmions, whose shapes are ellipse due to the presence of anisotropic Dzyaloshinskii–Moriya interaction (DMI), have already been discovered in experiments recently.
Chendong Jin, Shuang Li, Hu Zhang, Ruining Wang, Jianglong Wang, Ruqian Lian, Penglai Gong, Xingqiang Shi   +7 more
doaj   +1 more source

Preferential Interfacial Engineering of Hydrogels via Interdigitated Nanoparticle Assembly

Advanced Functional Materials, EarlyView.
Robust surface functionalization of hydrogel surfaces is performed via interdigitated metal nanoparticle assembly, inducing strong affinity with the hydrogel matrix. The partially exposed nanoparticle domains act as interfacial nanobridges that mediate both chemical and physical bonding with diverse materials, including small molecules, fluorous ...
Hyeonjin Kim, Hyeseoung Lim, Ji Min Lee, Heeyeon Kang, Yongkwon Song, Woojae Chang, So‐Jin Park, Jin Yoo, Atsushi Hozumi, Jinhan Cho, Jongkuk Ko, Sanghyuk Wooh   +11 more
wiley   +1 more source

A Complex Wavelet-Based OTFS Scheme for LEO Satellite Communication

IEEE Access
This study investigates a wavelet-aided orthogonal time-frequency space (W-OTFS) modulation system operating in low earth orbit (LEO) satellite systems. The discrete wavelet transform (DWT) underlying the complex input signals (high-order modulation) is ...
Saifur Rahman Sabuj, Han-Shin Jo
doaj   +1 more source