Results 101 to 110 of about 21,763 (268)

A mechanism for freezing moduli into Minkowski spacetime

Physics Letters B
We discuss FLRW-cosmologies with negatively-curved spatial slices that induce a late-time freezing of all the moduli of an effective field theory through Hubble friction, independently of the moduli-space curvature.
Flavio Tonioni
doaj   +1 more source

Relations in the cohomology ring of the moduli space of flat SO(2n + 1)-connections on a Riemann surface. [PDF]

Philos Trans A Math Phys Eng Sci, 2018
Adina Gamse E, Weitsman J.
europepmc   +1 more source

Multiband Switchable Microwave Absorbing Metamaterials Based on Reconfigurable Kirigami–Origami

Advanced Functional Materials, EarlyView.
A reconfigurable metamaterial featuring tunable microwave‐absorbing and load‐bearing performance is proposed. Stretchable kirigami and bistable origami configurations are integrated as actuating components, and the synergistic deformation mechanisms are systematically analyzed.
Weimin Ding, Zhong Zhang, Zeang Zhao, Shengyu Duan, Panding Wang, Xiaogang Guo, Hongshuai Lei, Daining Fang   +7 more
wiley   +1 more source

Mapping class groups of h-cobordant manifolds

Forum of Mathematics, Sigma
We prove that the mapping class group is not an h-cobordism invariant of high-dimensional manifolds by exhibiting h-cobordant manifolds whose mapping class groups have different cardinalities.
Samuel Muñoz-Echániz
doaj   +1 more source

Gromov-Witten theory of root gerbes I: structure of genus $0$ moduli\n spaces [PDF]

, 2009
Elena Andreini, Yunfeng Jiang, Hsian‐Hua Tseng   +2 more
openalex   +1 more source

Ultrahigh Strength with Suppressed Flow Instability at Liquid Helium Temperature via Coherent Nanoprecipitation in a Medium‐Entropy Alloy

Advanced Functional Materials, EarlyView.
It is demonstrated that severe lattice distortion and coherent nanoprecipitates overcome the strength–ductility dilemma and mitigate discontinuous plastic flow (DPF) at 4.2 K. Such microstructural design enhances both thermal and athermal stress components, leading to exceptional mechanical performance.
Min Young Sung, Tae Jin Jang, Sang Yoon Song, Chang‐Gi Lee, Jun Ho Lee, Young‐Kyun Kim, Sang‐Ho Oh, Byeong‐Joo Lee, Alireza Zargaran, Se‐Ho Kim, Young‐Sang Na, Seok Su Sohn   +11 more
wiley   +1 more source

GeAl2‐2xFe2xO3(OH)4 Nanotubes: New Electrocatalyst for Oxygen Evolution Reaction

Advanced Functional Materials, EarlyView.
Fe‐doped imogolite nanotubes are synthesized via a one‐step hydrothermal method with varying Fe substitution ratios x. Structural and spectroscopic analyses confirm homogeneous Fe incorporation while preserving tubular shape. Optimal doping at x = 0.05 enhances optical absorption, narrows band gap, reduces charge transfer resistance, and significantly ...
Yassine Naciri, Jian Li, Wahid Ullah, Fabien Baron, Franck Bourdelle, Stéphan Rouzière, Claire Goldmann, Erik Elkaim, Thomas Bizien, Rachid Belkhou, Delphine Vantelon, Mohamed Nawfal Ghazzal, Erwan Paineau   +12 more
wiley   +1 more source

A Smart Bio‐Battery Facilitates Diabetic Bone Defect Repair Via Inducing Macrophage Reprogramming and Synergistically Modulating Bone Remodeling Coupling

Advanced Functional Materials, EarlyView.
This research presents a novel implantable bio‐battery, GF‐OsG, tailored for diabetic bone repair. GF‐OsG generates microcurrents in high‐glucose conditions to enhance vascularization, shift macrophages to the M2 phenotype, and regulate immune responses.
Nanning Lv, Haifu Sun, Wenxiang Tang, Yonggang Li, Zhonglai Qian, Lihui Hong, Chong Chen, Hongye Li, Jiaxiang Bai, Yusen Qiao, Mingming Liu   +10 more
wiley   +1 more source

The heterotic G 2 moduli space metric

Journal of High Energy Physics
In this article we dimensionally reduce a heterotic supergravity on a G 2 background with Minkowski spacetime using a certain cohomology as a basis for the Kaluza-Klein expansion, up to and including first order in α‵.
Jock McOrist, Martin Sticka, Eirik Eik Svanes   +2 more
doaj   +1 more source

Multi‐Faceted Binder Enhancement via Slurry‐Applicable Thiol‐Ene Click Chemistry for Low‐Pressure‐Operable All‐Solid‐State Batteries

Advanced Functional Materials, EarlyView.
Cross‐linked binders with enhanced resiliencies under low operating pressures are designed via in situ thiol‐ene click reactions within slurries. Cross‐linking improves the Young's moduli and elasticities of the styrene‐butadiene rubber binders, effectively mitigating interparticle delamination within the composite cathodes induced by volumetric ...
Young Joon Park, Kyu Tae Kim, Seunggoo Jun, Jong Seok Kim, Jaehyun Yoon, Cheol Bak, Yong Min Lee, Dong Hyeon Kim, Ji Young Kim, Yoon Seok Jung   +9 more
wiley   +1 more source