A5101860693- Ferroelectric and Piezoelectric Materials
- Acoustic Wave Resonator Technologies
- Construction Project Management and Performance
- Electronic and Structural Properties of Oxides
- Force Microscopy Techniques and Applications
- Atmospheric chemistry and aerosols
- Atmospheric aerosols and clouds
- Copper Interconnects and Reliability
- Ultrasonics and Acoustic Wave Propagation
- Transportation Planning and Optimization
- Microstructure and mechanical properties
- Soil Moisture and Remote Sensing
- Multiferroics and related materials
- Capital Investment and Risk Analysis
- 3D Shape Modeling and Analysis
- Surface and Thin Film Phenomena
- Occupational Health and Safety Research
- Risk and Safety Analysis
- Manufacturing Process and Optimization
- Solidification and crystal growth phenomena
- Construction Engineering and Safety
- Complex Systems and Decision Making
- Quality and Management Systems
- Reliability and Maintenance Optimization
- Electrical Contact Performance and Analysis
Anhui Agricultural University
2025
Henan University
2025
Delta Air Lines (United States)
2006-2025
Institut national de recherche en informatique et en automatique
2023
Seagate (United States)
2009-2022
Nanjing University of Science and Technology
2021
Washington University in St. Louis
2019
Dalian Maritime University
2009
University of California, Berkeley
2005-2007
University of Maryland, College Park
2002-2006
As a dynamic research field, infrared (IR) detection and imaging presents broad prospect in spectra‐chemistry, biomedicine, artificial intelligence. Due to the excellent properties, 2D materials are expected overcome serious manufacturing cost integration problems of Si‐based photodetectors, providing opportunities for universal application IR imaging. Up now, dozens used manufacture photodetectors. The ultrathin flexible material‐based optoelectronic devices, which easy machine integrate,...
A highway system development involves huge irreversible investments, and requires rigorous modeling analysis before the implementation decision is made. This decision-making process embedded with multiple uncertainties due to changes in political, social, environmental contexts. In this paper, we present a multistage stochastic model for making development, operation, expansion, rehabilitation. accounts evolution of three uncertainties, namely, traffic demand, land price, deterioration, as...
Infrastructure facilities are generally heavy, fixed, and normally irreversible once construction has been completed. As existing facilities, they may confront economic competition of an increased space demand the need for future expansion. Due to economic-based irreversibility, expansion a constructed facility requires foundation and, lesser degree, columns be enhanced options accounted at very beginning construction. Enhancing represents up-front cost, but return in flexibility This...
Gaze understanding is suggested as a precursor to inferring intentions and engaging in joint attention, core capacities for theory of mind, social learning, language acquisition.As Vision Language Models (VLMs) become increasingly promising interactive applications, assessing whether they master this foundational socio-cognitive skill becomes vital.Rather than creating benchmark, we aim probe the behavioral features underlying gaze understanding. We curated set images with systematically...
Gaze understanding is suggested as a precursor to inferring intentions and engaging in joint attention, core capacities for theory of mind, social learning, language acquisition.As Vision Language Models (VLMs) become increasingly promising interactive applications, assessing whether they master this foundational socio-cognitive skill becomes vital.Rather than creating benchmark, we aim probe the behavioral features underlying gaze understanding. We curated set images with systematically...
Inspired by the strengths of quadric error metrics initially designed for mesh decimation, we propose a concise reconstruction approach 3D point clouds. Our proceeds clustering input points enriched with metrics, where generator each cluster is optimal sum its metrics. This favors placement generators on sharp features, and tends to equidistribute among clusters. We reconstruct output surface from adjacency between clusters constrained binary solver. combine our process an adaptive...
The measured mile/baseline method has been widely accepted to quantify labor productivity loss, which is demonstrated by comparing the impacted and unimpacted/lightly portions of work. Although distinctions between these a project can at times be identified through cause effect analysis, on many projects this distinction not readily observable. For those projects, researchers professionals have developed various procedures implement calculations, but shortcomings in result failure...
Photoexcitation can be used to control the composition and nanoscale morphology of inorganic materials. Here we report photoinduced transformation faceted cuprous oxide (Cu2O) microcrystals hollow particles consisting an inner region outer shell copper metal. When with mixed {100} {111} facets are held at a negative bias (−1.0 V vs Ag/AgCl) in solution sodium hydroxide (NaOH), light mediates growth metal selectively on while crystal interior is etched facets. Conformal Cu layers grow connect...
The converse longitudinal piezoelectric responses of PbZr0.2Ti0.8O3∕SrTiO3∕Si heterostructures have been studied for continuous films and islands patterned by focused ion beam milling (typical dimension is 1×1×1μm). intrinsic response the island with an immobile polydomain structure modeled using finite element analysis. difference between results experimental measurement modeling explained extrinsic contribution to piezoresponse from 90° domain movement. movement total shown be greatly...
We present a method for data storage in continuous ferroelectric (FE) media, applicable to systems based on one or more scanning probes. Written FE domains are read back destructive fashion by applying constant voltage of magnitude greater than the coercive voltage, as is done random access memory (FeRAM). The resulting flow screening charges through readback amplifier provides sufficient signal allow minimum dimension order 10 nm at MHz rates, orders faster previously demonstrated techniques media.
Coupling between electrical and mechanical phenomena is ubiquitous in nature, with examples ranging from piezoelectricity polar perovskites chemical bonds to complex pathways of electromechanical transformations underpinning the functionality electromotor proteins, cells, tissues. Piezoresponse force microscopy (PFM) had originally emerged as a technique study ferroelectric on nanoscale. In recent years, applicability PFM for studying broad range non-ferroelectric materials has been...
We introduce a simple two-region model where the diffusion constant in small region around each step on vicinal surface can differ from that found terraces. Steady-state results for this provide physically suggestive mapping onto kinetic coefficients conventional sharp-step model, with negative coefficient arising faster region. A linear stability analysis of resulting provides unified and interpretation many experimental current-induced bunching wandering instabilities both...
Optimal infrastructure development and expansion decision making requires taking into account contingent decisions underlying uncertainty, such as demand, during the planning period. Recent publications on life cycle management have used lattice models Markov to evaluate policies. In this paper, a risk-preference based model is presented, it provides optimal in terms of risk preference that can be other than neutrality. The proposed methodology demonstrated an example involving constructing...
Coarse-grained modeling of dynamics on vicinal surfaces concentrates the diffusion adatoms terraces with boundary conditions at sharp steps, as first studied by Burton, Cabrera and Frank (BCF). Recent electromigration experiments Si suggest need for more general in a BCF approach. We study discrete 1D hopping model that takes into account asymmetry rates region around step finite probability incorporation solid site. By expanding continuous concentration field Taylor series evaluated sites...
Supported nanoscale lead crystallites with a step emerging from noncentered screw dislocation on the circular top facet were prepared by rapid cooling just above melting temperature. STM observations of show nonuniform rotation rate and shape spiral as crystallite relaxes. These features can be accurately modeled using curvature driven dynamics, in classical models growth, boundary conditions fixing core regions lying along outer edge.