Results 131 to 140 of about 4,823,752 (344)

Twistor transform of all tree amplitudes in N=4 SYM theory

, 2009
We perform the twistor (half-Fourier) transform of all tree n-particle superamplitudes in N=4 SYM and show that it has a transparent geometric interpretation. We find that the N^kMHV amplitude is supported on a set of (2k+1) intersecting lines in twistor
Alday, Arkani-Hamed, Arkani-Hamed, Bargheer, Beisert, Bena, Bena, Berends, Berkovits, Bern, Bern, Bianchi, Brandhuber, Brandhuber, Brandhuber, Britto, Britto, Cachazo, Cachazo, Cachazo, Drummond, Drummond, Drummond, Drummond, Drummond, E. Sokatchev, Elvang, G.P. Korchemsky, Georgiou, Gukov, Hodges, Hodges, Korchemsky, Mangano, Mason, Nair, Parke, Penrose, Witten   +38 more
core   +4 more sources

Flexibility and Dynamicity Enhances and Controls Supramolecular Self‐Assembly of Zinc(II) Metallogels

Advanced Functional Materials, EarlyView.
Zinc(II) coordination complexes with tunable aryloxy‐imine ligands exhibit controllable supramolecular self‐assembly into hierarchical fibrous structures. Coordination‐driven stacking, not π–π interactions, enables gelation, dynamic assembly/disassembly, and enhanced nanomechanical properties.
Merlin R. Stühler, Hesam Makki, Dorothee Silbernagl, Mathias Dimde, Kai Ludwig, Bengt E. Tegner, Christopher Greve, Konstantin Rausch, Eva M. Herzig, Anna Köhler, Alex J. Plajer   +10 more
wiley   +1 more source

String theory in twistor space and minimal tension holography

Journal of High Energy Physics
Explicit examples of the AdS/CFT correspondence where both bulk and boundary theories are tractable are hard to come by, but the minimal tension string on AdS 3 × S 3 × T 4 is one notable example.
N. M. McStay, R. A. Reid-Edwards
doaj   +1 more source

Remarks on symplectic twistor spaces [PDF]

Annali di Matematica Pura ed Applicata, 2008
20 pages, title changed since v2, accepted in AMPA ...
openaire   +3 more sources

Atomically Dispersed Copper Electrocatalysts with Proton‐feeding Centers for Efficient Ammonia Synthesis by Nitrate Electroreduction

Advanced Functional Materials, EarlyView.
Rationally‐designed advanced carbon‐based single‐atom catalysts with isolated CuN2O2 active sites anchored in N,O‐doped porous carbon facilitate water dissociation and nitrate reduction, accelerating proton supply for efficient electrosynthesis of ammonia.
Yan Li, Jingyang Guo, Yuwei Yang, Bingliang Wang, Haotian Wen, Thanh Son Bui, Shery L. Y. Chang, Nicholas M. Bedford, Emma Lovell, Rahman Daiyan, Rose Amal, Yang Hou, Richard Tilley, Zhenhai Xia, Liming Dai   +14 more
wiley   +1 more source

Twistors and 3-symmetric spaces [PDF]

Proceedings of the London Mathematical Society, 2008
We describe complex twistor spaces over inner 3-symmetric spaces $G/H$, such that $H$ acts transitively on the fibre. Like in the symmetric case, these are flag manifolds $G/K$ where $K$ is the centralizer of a torus in $G$. Moreover, they carry an almost complex structure defined using the horizontal distribution of the normal connection on $G/H ...
openaire   +4 more sources

Advances in Micro/Nanofiber‐Based Porous Materials for High‐Performance Thermal Insulation

Advanced Functional Materials, EarlyView.
Micro/nanofiber porous materials have engendered great interest in the thermal insulation field. Herein, the structural designs, fabrication techniques, and applications of the micro/nanofiber thermal insulation materials are systematically summarized.
Xiaobao Gong, Shuo Shi, Jing Yin, Rong Liu, Jianming Chen, Xungai Wang   +5 more
wiley   +1 more source

Remodeling Interfacial Electrical Field for Superhigh Capacity and Ultralong Lifespan Aqueous Zinc‐Ion Batteries

Advanced Functional Materials, EarlyView.
The design of cathode materials is the key to solving the practical application of AZIBs. In this work, the formation of the built‐in electric field in the NVO@CC material adjusts the electronic structure, showing high specific capacity and ultra‐long cycle stability, and achieving rapid diffusion of ions and good electrochemical kinetics.
Yan Ran, Mengyao Li, Huaping Zhao, Jie Ren, Yonglong Sheng, Guosheng Shao, Yude Wang, Yong Lei   +7 more
wiley   +1 more source

Unlock the Walnut: How a Pectin‐Rich Suture Tissue and Moisture‐Driven Crack Formation Induce Shell Splitting and Facilitate Seed Germination

Advanced Functional Materials, EarlyView.
Walnut seeds are enclosed in a remarkably strong shell made of sclerenchyma, separated by a pectin‐rich suture tissue. Different cell shapes and chemical composition of this tissue point to an opening mechanism, which is triggered by cyclic humidity changes.
Sebastian J. Antreich, Nannan Xiao, Martin Felhofer, Notburga Gierlinger   +3 more
wiley   +1 more source

Multimaterial Embedded 3D Printing of Composite Reinforced Soft Actuators. [PDF]

Research (Wash D C), 2023
Wang Z, Zhang B, He Q, Chen H, Wang J, Yao Y, Zhou N, Cui W.   +7 more
europepmc   +1 more source