Results 41 to 50 of about 3,276,106 (201)

Dual Organic Spacer Cation Quasi‐2D Sn–Pb Perovskite for Solar Cells and Near‐Infrared Photodetectors Application

open access: yesAdvanced Photonics Research, 2022
Tin (Sn)‐ and Sn–Pb‐based perovskites arouse great interests in low‐toxicity perovskite. Nevertheless, the instability problems that aroused by Sn oxidation still hinder their applications.
Ya Wang   +6 more
doaj   +1 more source

Study on head configurations increasing aerodynamic rolling stability of ground-based hypersonic testing system

open access: yesXibei Gongye Daxue Xuebao
Rocket sled testing is a typical high speed, high dynamic and high credibility ground-based high-speed testing technique, which has the ability to simulate the actual operating conditions.
JING Jianbin   +3 more
doaj   +1 more source

The Effect of Organic Spacer Cations with Different Chain Lengths on Quasi-Two-Dimensional Perovskite Properties

open access: yesInorganics, 2023
In the past 20 years, perovskite-related research has attracted wide attention. The related research into two-dimensional/quasi-two-dimensional perovskite has propelled the research of perovskite materials to a new height.
Lei Zhang   +7 more
doaj   +1 more source

Sharp stability estimates for the force-based quasicontinuum approximation of homogeneous tensile deformation [PDF]

open access: yes, 2010
The accuracy of atomistic-to-continuum hybrid methods can be guaranteed only for deformations where the lattice configuration is stable for both the atomistic energy and the hybrid energy.
Luskin, Mitchell Barry   +2 more
core   +1 more source

Firm-quasi-stability and re-equilibration in matching markets with contracts [PDF]

open access: yes, 2023
We study firm-quasi-stability in the framework of many-to-many matching with contracts under substitutable preferences. We establish various links between firm-quasi-stability and stability, and give new insights into the existence and lattice property ...
Yang, Yi-You
core   +1 more source

Multilevel Integration Entropies: The Case of Reconstruction of Structural Quasi-Stability in Building Complex Datasets [PDF]

open access: yesEntropy, 2017
The emergence of complex datasets permeates versatile research disciplines leading to the necessity to develop methods for tackling complexity through finding the patterns inherent in datasets. The challenge lies in transforming the extracted patterns into pragmatic knowledge.
Slobodan Maletic, Yi Zhao
openaire   +3 more sources

Research on the flow stability and noise reduction characteristics of quasi-periodic elastic support skin

open access: yesDefence Technology
To enhance flow stability and reduce hydrodynamic noise caused by fluctuating pressure, a quasi-periodic elastic support skin composed of flexible walls and elastic support elements is proposed for fluid noise reduction.
Lu Chen   +7 more
doaj   +1 more source

Engineering Model Reduction and Entropy-based Lyapunov Functions in Chemical Reaction Kinetics

open access: yesEntropy, 2010
In this paper, the structural properties of chemical reaction systems obeying the mass action law are investigated and related to the physical and chemical properties of the system.
Katalin M. Hangos
doaj   +1 more source

Vortex Stability in the Thermal Quasi-Geostrophic Dynamics

open access: yesFluids
The stability of a circular vortex is studied in the thermal quasi-geostrophic (TQG) model. Several radial distributions of vorticity and buoyancy (temperature) are considered for the mean flow. First, the linear stability of these vortices is addressed.
Xavier Carton   +2 more
doaj   +1 more source

Intermediate phase assisted sequential deposition of reverse‐graded quasi‐2D alternating cation perovskites for MA‐free perovskite solar cells

open access: yesInfoMat, 2023
One‐step deposition approaches have been widely applied and developed in the fabrication of quasi‐2D perovskites. However, the regulation of quantum wells (QWs) and crystalline orientation is difficult and complicated when using this methodology ...
Shaofu Wang   +16 more
doaj   +1 more source

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