Results 101 to 110 of about 1,041,754 (275)
Advanced Engineering Materials, EarlyView.This study investigates the bond quality of co‐extruded aluminum–titanium hybrid profiles, focusing on the lateral angular co‐extrusion (LACE) process. It examines how heat treatments (HT) affect intermetallic phase formation, bond strength, and material properties.
Norman Mohnfeld +9 more
wiley +1 more source
Beyond Order: Perspectives on Leveraging Machine Learning for Disordered Materials
Advanced Engineering Materials, EarlyView.This article explores how machine learning (ML) revolutionizes the study and design of disordered materials by uncovering hidden patterns, predicting properties, and optimizing multiscale structures. It highlights key advancements, including generative models, graph neural networks, and hybrid ML‐physics methods, addressing challenges like data ...
Hamidreza Yazdani Sarvestani +4 more
wiley +1 more source
Modelling Asset Prices under Regime Switching Diffusions via First Passage Time [PDF]
, 2008 In this thesis we focus on the development of a new class of stochastic models for asset price processes and their application to option pricing and hedging.
Xi, Xiaojing
core +1 more source
Hitting and Harvesting Pumpkins
, 2013 The "c-pumpkin" is the graph with two vertices linked by c>0 parallel edges. A c-pumpkin-model in a graph G is a pair A,B of disjoint subsets of vertices of G, each inducing a connected subgraph of G, such that there are at least c edges in G between A ...
Joret, Gwenaël +4 more
core +3 more sources
Advanced Engineering Materials, EarlyView.Periodic submicron features are fabricated on 304 stainless steel using single and double femtosecond laser pulses. By adjusting polarization, fluence, and inter‐pulse delay, 1D and 2D nanostructures are formed. Enhanced hydrophobicity and dense surface‐enhanced Raman spectroscopy hotspots enable analyte detection down to 10−10 M with good ...
Balaji Baskar +3 more
wiley +1 more source
The first hitting time of stochastic volatility models(随机波动模型的首中时问题)
Zhejiang Daxue xuebao. Lixue ban, 2017 研究了一类波动率是平方根过程的随机波动CEV模型的首中时问题.利用鞅方法求解首中时和波动率的联合拉普拉斯变换，继而将问题转换为求解一类变系数二阶常微分方程，通过变量代换将此方程转化为经典的Whittaker方程，得到联合拉普拉斯变换表达式.最后，选取不同的参数，使随机波动CEV模型的资产价格过程能够涵盖O-U过程、几何布朗运动、平方根过程等几种常见的扩散过程，画出不同参数下联合拉普拉斯变换函数的三维图像，并分析其变化趋势.
ZHANGMiao(张苗) +2 more
openaire +1 more source
Asymptotic equivalence of estimating a poisson intensity and a positive diffusion drift [PDF]
, 2000 We consider a diffusion model of small variable type with positive drift density varying in a nonparametric set. We investigate Gaussian and Poisson approximations to this model.
Genon-Catalot, Valentine +2 more
core
INTEGRAL/IBIS observations of a hard X-ray outburst in high mass X-ray binary 4U 2206+54
, 2010 U 2206+54 is a wind-fed high mass X-ray binary with a main-sequence donor star. The nature of its compact object was recently identified as a slow-pulsation magnetized neutron star.
Bird +31 more
core +1 more source
Scalable Fabrication of Height‐Variable Microstructures with a Revised Wetting Model
Advanced Engineering Materials, EarlyView.Height‐variable microstructures are fabricated using a scalable CO2 laser machining approach, enabling precise control of wettability through structural gradients. Classical wetting models fail to capture height‐induced effects, necessitating a revised theoretical framework.
Prabuddha De Saram +2 more
wiley +1 more source
Passage times of perturbed subordinators with application to reliability
, 2011 We consider a wide class of increasing Lévy processes perturbed by an independent Brownian motion as a degradation model. Such family contains almost all classical degradation models considered in the literature.
Paroissin, Christian, Rabehasaina, Landy
core +2 more sources