Results 111 to 120 of about 82,654 (305)

On the norm of the hyperinterpolation operator on the unit ball

open access: yesJournal of Approximation Theory, 2015
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Heping Wang   +3 more
openaire   +2 more sources

POM‐Based Water Splitting Catalyst Under Acid Conditions Driven by Its Assembly on Carbon Nanotubes

open access: yesAdvanced Materials, EarlyView.
A newly‐engineered POM‐based electrocatalyst incorporating non‐innocent counter cations exhibits fast kinetics for either the OER or HER under strongly acidic conditions (1 m H2SO4), depending on whether it is assembled on carbon nanotubes (1@CNT) or physically mixed with them (1/CNT). In water‐splitting tests using a two‐electrode setup, these systems
Eugenia P. Quirós‐Díez   +8 more
wiley   +1 more source

Extremal properties of the unit ball in H1

open access: yes, 1992
Strongly exposed points of the unit ball in H1(D) are studied. We give criteria for extreme points to be strongly exposed. The main result is that an exposed point of the unit ball of H1 is strongly exposed, if the L∞-distance of f¯/vbfvb to C(T)+H∞ is ...
Temme, Dirk, Wiegerinck, Jan
core   +1 more source

Clique number and ball containment number of unit ball graphs

open access: yesElectronic Notes in Discrete Mathematics, 2001
Abstract For each d ≥ 2, we give the construction of a sequence (νdn)n>o of sets of (d+l)n points of diameter 1 in Download : Download full-size image d, such that a unit ball cannot contain more than 1 (d + 1) ∣ν n ∣ + 1 points. In the case d=2, this answers a conjecture of McDiarmid.
openaire   +1 more source

One‐Dimensional Materials Supported in Two‐Dimensional Van der Waals Metal–Organic Frameworks with Optical Anisotropy Switching via Twist‐Engineering

open access: yesAdvanced Materials, EarlyView.
We introduce a molecular strategy to assemble one‐dimensional (1D) materials into two‐dimensional (2D) van der Waals metal–organic frameworks (MOFs). Crystals of [FeX(pzX)(bpy)] (X = Cl, F) form anisotropic 2D layers that can be mechanically exfoliated into thin sheets.
Eleni C. Mazarakioti   +12 more
wiley   +1 more source

When Poor Exciton Dissociation Limits Photocurrents in Organic Solar Cells: Why Low Offset Non‐Fullerene Acceptor Blends Can't Be Efficient

open access: yesAdvanced Materials, EarlyView.
The energetic offset between the donor and the acceptor components in organic photoactive layers is central to the tradeoff between photovoltage and photocurrent losses. This Perspective covers the most important issues surrounding this topic in non‐fullerene acceptor blends, from the difficulty of accurately determining state energies and driving ...
Dieter Neher, Manasi Pranav
wiley   +1 more source

Weighted Composition Operators on Some Weighted Spaces in the Unit Ball

open access: yesAbstract and Applied Analysis, 2008
Let Bn be the unit ball of Cn, H(Bn) the space of all holomorphic functions in Bn. Let u∈H(Bn) and α be a holomorphic self-map of Bn. For f∈H(Bn), the weigthed composition operator uCα is defined by (uCαf)(z)=u(z)f(α(z)),z∈Bn.
Xiaohong Fu, Xiangling Zhu
doaj   +1 more source

Nanomaterial Integration at Liquid–Liquid Interfaces for Green Catalysis

open access: yesAdvanced Materials, EarlyView.
Functional nanomaterials assembled at liquid–liquid interfaces create dual‐role platforms serving as emulsion stabilizers and catalytic sites, offering enhanced reaction kinetics with improved catalyst recovery and recyclability. This review examines design strategies, structure‐performance relationships, and industrial implementation prospects of ...
Bokgi Seo   +6 more
wiley   +1 more source

单位球上µ-Bloch空间到Zygmund型空间的加权Cesàro算子(Extended Cesàro operators from µ-Bloch spaces to Zygmund type spaces in the unit ball)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2016
Supposing that α>0,let g be holomorphic functions in the unit ball B and µ(r) be a normal function on [0,1). Some questions of extended Cesàro operators are studied from µ-Bloch spaces to Zygmund type spaces in the unit ball. By the methods of functional
ZHAOYanhui(赵艳辉)
doaj   +1 more source

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