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Article
Open AccessLarge exchange-driven intrinsic circular dichroism of a chiral 2D hybrid perovskite
In two-dimensional chiral metal-halide perovskites, chiral organic spacers endow structural and optical chirality to the metal-halide sublattice, enabling exquisite control of light, charge, and electron spin....
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Chapter and Conference Paper
Influence of Concentrically Braced Frame Footing Design on Recovery Time
The primary objective of current seismic design codes is to ensure the life safety of building occupants under extreme seismic events. These codes normally permit structural and nonstructural damage during a d...
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Article
Thickness control of organic semiconductor-incorporated perovskites
Two-dimensional organic semiconductor-incorporated perovskites are a promising family of hybrid materials for optoelectronic applications, owing in part to their inherent quantum well architecture. Tuning thei...
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Article
Thermodynamic basis of granular STZ model and its application in revealing shear resistance reduction mechanisms of granular soils under vibration
The granular shear-transformation-zone (STZ) model is an energy-based constitutive model for studying granular materials subjected to vibration. This paper provides a detailed analysis of the thermodynamic fou...
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Article
A bilevel optimization model for the newsvendor problem with the focus theory of choice
The newsvendor problem is formulated with the focus theory of choice in which instead of using the expected utility in the existing approaches, the optimal order quantity is determined as per which order quant...
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Article
Open AccessEmergent layer stacking arrangements in c-axis confined MoTe2
The layer stacking order in 2D materials strongly affects functional properties and holds promise for next-generation electronic devices. In bulk, octahedral MoTe2 possesses two stacking arrangements, the ferroel...
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Article
Experimental study on deformation and strength characteristics of granular soil-structure interface under coupled monotonic shear and vibration using a modified direct shear apparatus
Soil-structure interaction under vibration becomes an important concern for the underground structure below or adjacent to a railway line as train speed is continuously raised. Although more and more related w...
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Article
Experimental study on dynamic characteristics of granular materials under axial high-frequency vibration
The fundamental understanding of the behavior of granular materials by the effect of vibration is necessary to properly address a number of engineering issues, such as long-term settlement of high-speed railwa...
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Chapter and Conference Paper
Seismic Force Demands on the Foundations of Concentrically Braced Frame Systems
Concentrically braced frames (CBFs) are widely used as lateral force-resisting systems in North America. Canadian seismic design requirements for building foundations distinguish between two foundation types: ...
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Article
Dynamic characteristics of multiscale longitudinal stress and particle rotation in ballast track under vertical cyclic loads
Loads transfer in ballast track through contacts among randomly distributed ballast particles and have strong heterogeneity. Since the size ratio between ballast track and ballast particles is generally small,...
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Article
Micromechanical analysis of non-coaxiality between stress and strain increment in granular materials
It is known that non-coaxiality between the directions of the principal stresses and the principal plastic strain increments in granular material is physically resulted from the material and mechanical anisotr...
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Article
Single-level reformulations of a specific non-smooth bilevel programming problem and their applications
We study a bilevel programming problem (BLPP) with a maximin lower level problem which is non-smooth and sometimes even non-convex. We reformulate such a non-smooth BLPP as a tractable single-level optimizatio...
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Article
Investigation of a loess-mudstone landslide and the induced structural damage in a high-speed railway tunnel
This paper presents a landslide that occurred in loess hills resulting in structural damage to the Zhangjiazhuang tunnel of the Lanzhou–**njiang high-speed railway line. The characteristics of tunnel deformati...
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Article
Bilevel programming approaches to production planning for multiple products with short life cycles
We provide decision-making models for a manufacturer which plans to produce multiple short life cycle products with the one-shot decision theory. The obtained optimal production quantities are based on the mos...
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Article
Open AccessSub-1.4eV bandgap inorganic perovskite solar cells with long-term stability
State-of-the-art halide perovskite solar cells have bandgaps larger than 1.45 eV, which restricts their potential for realizing the Shockley-Queisser limit. Previous search for low-bandgap (1.2 to 1.4 eV) hali...
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Article
An Equivalent Spherical Particle System to Describe Characteristics of Flow in a Dense Packing of Non-spherical Particles
Effective characteristics, such as the effective particle diameter and hydraulic radius, are usually used to determine the pressure loss associated with single-phase flow through an isotropic, dense non-spheri...
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Article
Induced force chain anisotropy of cohesionless granular materials during biaxial compression
This paper investigates the induced anisotropy and multi-scale shear characteristics of granular materials by quantifying force chain distribution in two-dimensional specimens of rigid particles under quasi-st...
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Article
Three-dimensional analytical model for the dynamic interaction of twin tunnels in a homogeneous half-space
Ground vibration and noise induced by underground railways have become a major environmental issue. Significant research has been carried out to investigate vibrations generated by a single tunnel, with less a...
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Article
Open AccessPhotoinduced, reversible phase transitions in all-inorganic perovskite nanocrystals
Significant interest exists in lead trihalides that present the perovskite structure owing to their demonstrated potential in photovoltaic, lasing, and display applications. These materials are also notable fo...
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Article
Open AccessInfrared-pump electronic-probe of methylammonium lead iodide reveals electronically decoupled organic and inorganic sublattices
Organic-inorganic hybrid perovskites such as methylammonium lead iodide (CH3NH3PbI3) are game-changing semiconductors for solar cells and light-emitting devices owing to their defect tolerance and exceptionally l...
