Results 131 to 140 of about 465,915 (347)
Advanced Materials, EarlyView.Metal‐free carbon catalysts enable the sustainable synthesis of hydrogen peroxide via two‐electron oxygen reduction; however, active site complexity continues to hinder reliable interpretation. This review critiques correlation‐based approaches and highlights the importance of orthogonal experimental designs, standardized catalyst passports ...
Dayu Zhu +3 more
wiley +1 more source
Advanced Materials Interfaces, EarlyView.2D and 3D patterned structures of Q‐carbon nanoballs and nanodiamonds have been created by laser writing of polymers, carbonization, and pulsed laser annealing. Polymeric structures are prepared by using a direct‐laser‐writing (DLW) process involving two‐photon polymerization (2PP). Patterned nanodiamond and Q‐carbon growth over large areas is obtained
Sumeer Khanna +3 more
wiley +1 more source
The T-dual symmetries of a bosonic string
European Physical Journal C: Particles and Fields, 2018 We investigate whether the symmetry transformations of a bosonic string are connected by T-duality. We start with a standard closed string theory. We continue with a modified open string theory, modified to preserve the symmetry transformations possessed
Ljubica Davidović, Branislav Sazdović
doaj +1 more source
Advanced Materials Technologies, EarlyView.A biomimetic Jigsaw pattern infill for 3D printer has been developed. Its mechanical features with continuous carbon fiber reinforcement (CCFR) are investigated through the Design of Experiments. The Jigsaw infill minimizes mechanical strength losses caused by variability in infill density, flow rate, or carbon fiber string amount, outperforming ...
Tae‐Ho Kim +4 more
wiley +1 more source
Applications of QSPR and Machine Learning in Molecular Photonics
Advanced Optical Materials, EarlyView.Quantitative structureproperty relationships (QSPR) and machine learning (ML) are transforming photochemistry by enabling pre‐synthetic screening of photoactive molecules. This review outlines advances in data‐driven discovery of optical materials and functional dyes, identifies effective descriptors and models for photophysical processes, and provides
Andrey A. Buglak +2 more
wiley +1 more source
Open String Field Theory around Universal Solutions
, 2002 We study the physical spectrum of cubic open string field theory around universal solutions, which are constructed using the matter Virasoro operators and the ghost and anti-ghost fields. We find the cohomology of the new BRS charge around the solutions,
Frenkel, I. Kishimoto, T. Takahashi
core +1 more source
Novel string field theory with also negative energy constituents/objects gives Veneziano amplitude
Journal of High Energy Physics, 2018 We have proposed a new type of string field theory. The main point of the present article is to cure some technical troubles: missing two out three terms in Veneziano amplitude. Our novel string field theory, describes a theory with many strings in terms
H.B. Nielsen, M. Ninomiya
doaj +1 more source
Field theories in terms of particle-string variables: Spin, internal symmetries, and arbitrary dimension [PDF]
, 1977 M. B. Halpern +2 more
openalex +1 more source
Advanced Robotics Research, EarlyView.This article introduces a soft wearable eyelid sling device incorporating a hydraulic soft artificial muscle (SAM) for achieving complete closure of an eyelid. The SAM is driven by a cam mechanism that provides a displacement profile closely matched with those of a healthy eyelid.
Patrick Pruscino +7 more
wiley +1 more source
Open string field theory in lightcone gauge
Journal of High Energy PhysicsWe study covariant open bosonic string field theory in lightcone gauge. When lightcone gauge is well-defined, we find two results. First, the vertices of the gauge-fixed action consist of Mandelstam diagrams with stubs covering specific portions of the ...
Theodore Erler
doaj +1 more source