Results 61 to 70 of about 331,698 (221)
Toeplitz Operators in Hilbert Space over Graphs [PDF]
arXiv, 2010 In this paper, we consider the relation between Toeplitz operators and elements in von Neumann algebras generated by certain graph groupoids.
arxiv
Sono‐Piezo‐Photosynthesis of Ethylene and Acetylene from Bioethanol under Ambient Conditions
Advanced Functional Materials, EarlyView.A novel sono‐piezo‐photocatalytic strategy enables the conversion of bioethanol to ethylene (C2H4) and acetylene (C2H2) under ambient conditions, addressing the limitations of conventional methods that are high‐temperature and energy‐intensive. By using an advanced graphene oxide/sodium bismuth titanate heterostructure catalyst, this work achieved ...
Yue Jiang +21 more
wiley +1 more source
Current Issues in Sport ScienceIntroduction & Purpose It is important to consider the impact of nutrition on training adaptations and performance outcomes (Jeukendrup, 2017). The present study was therefore conducted with the objective of determining whether long-term periodizing ...
Anna Maria Moitzi +2 more
doaj +1 more source
Remark on the Betti numbers for Hamiltonian circle actions [PDF]
arXiv, 2019 In this paper, we establish a certain inequality in terms of Betti numbers of a closed Hamiltonian $S^1$-manifold with isolated fixed points.
arxiv
Advanced Functional Materials, EarlyView.HKUST‐1/TiO2 composite materials show a very high photocatalytic hydrogen evolution rate which increases as a function of the irradiation time until reaching a plateau and even surpasses the performance of the 1%Pt/TiO2 material after three photocatalytic cycles.
Alisha Khan +9 more
wiley +1 more source
Advanced Functional Materials, EarlyView.Ozone‐based gas‐phase metal‐assisted chemical etching enables unprecedented room‐temperature fabrication of high‐quality silicon nanowires. The superior oxidation potential of O3 drives rapid vertical etching (1 µm min−1) while maintaining exceptional structural integrity. The pristine nanowire surfaces enable high‐performance core‐shell photodetectors
Hyein Cho +11 more
wiley +1 more source
Finite Energy Electroweak Monopoles [PDF]
arXiv, 1997 We present finite energy analytic monopole and dyon solutions whose size is fixed by the electroweak scale. The new solutions are obtained by regularizing the recent Cho-Maison solutions of the Weinberg-Salam model. Our result shows that genuine electroweak monopole and dyon could exist whose mass scale is much smaller than the grand unification scale.
arxiv
Advanced Functional Materials, EarlyView.A transistor‐type carbon nanotube gas sensor with dual‐mode detection capability has been proposed. By simply adjusting the gate voltage and UV illumination, this sensor enables both real‐time detection and accumulation‐based sensing of toxic gases within a single device, providing a compact and adaptable platform for environmental monitoring ...
Jaewon Shin +7 more
wiley +1 more source
Advanced Functional Materials, EarlyView.The replacement of the anodic OER in CO2RR with energy‐saving methanol oxidation reaction and the creation of a favorable microenvironment through interfacial Cl− ions enable concurrent formate production at industrial‐level current densities. Abstract The efficient electrocatalytic conversion of CO2 to formate is often impeded by the high energy ...
Yiqun Chen +7 more
wiley +1 more source
Role of magnetic resonance spectroscopy in grading of primary brain tumors
The Egyptian Journal of Radiology and Nuclear Medicine, 2016 Objective: To assess the usefulness of MR spectroscopy (MRS) in grading of primary brain tumors. Methods: MRS was performed in 22 patients with primary brain tumors.
Radwa Kamel Abdel Naser +3 more
doaj +1 more source