Results 151 to 160 of about 887,904 (256)

Challenges in managing housing needs in post conflict housing reconstruction

, 2015
Post conflict housing reconstruction plays a vital role in establishing the development and peace in conflict affected countries. Despite the importance, the success of post conflict housing reconstruction is hindered by a number of problems. Furthermore,
Haigh, Richard P., Amaratunga, Dilanthi, Seneviratne, Krisanthi (R20001)   +2 more
core  

Diffusion Priors Enhanced Velocity Model Building From Time‐Lag Images Using a Neural Operator

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 5, October 2026.
Abstract Velocity model building (VMB) serves as a crucial component for achieving high precision subsurface imaging. However, conventional VMB methods are often computationally expensive and time consuming. In recent years, with the rapid advancement of deep learning, particularly the success of generative models and neural operators (NOs), deep ...
Xiao Ma, Mohammad Hasyim Taufik, Tariq Alkhalifah   +2 more
wiley   +1 more source

A New Experimental Design to Measure Second‐ and Third‐Order Anisotropic Rock‐Stiffness Coefficients Using a Single‐Rock Sample

Geophysical Prospecting, Volume 74, Issue 8, October 2026.
ABSTRACT We developed a new experimental setup for measuring and modelling stress‐induced anisotropy and nonlinearity in cylindrical rock samples. Multidirectional ultrasonic velocity measurements were conducted under laboratory conditions and during triaxial‐stress testing to capture dynamic rock properties. This is done by placing endcap transducers (
Gabriel Gallardo‐Giozza, Domenico Crisafulli, D. Nicolás Espinoza, Carlos Torres‐Verdín   +3 more
wiley   +1 more source

An eikonal model with re‐excitability for fast simulations in cardiac electrophysiology

The Journal of Physiology, Volume 604, Issue 19, Page 8264-8283, 1 October 2026.
Abstract figure legend Restitution properties obtained from cable‐equation simulations and anisotropic remeshing informed by local fibre orientation are combined in an eikonal model with re‐excitability. The resulting reduced electrophysiology model enables efficient simulations of recurrent activation patterns, here illustrated by atrial re‐entry ...
Lia Gander, Rolf Krause, Francisco Sahli Costabal, Simone Pezzuto   +3 more
wiley   +1 more source

Design of Large‐Aperture Hybrid Refractive Metalens System

Nanophotonics, Volume 15, Issue 18, 25 September 2026.
An all‐germanium hybrid refractive–metalens system was constructed by integrating a planar Ge metalens with a single aspheric Ge lens, enabling compact wavefront correction in the LWIR band. The all‐Ge hybrid architecture simplifies conventional multi‐element infrared optics into a lightweight integrated imaging system while maintaining effective ...
Yinpeng Ma, Huachao Cheng, Shijie Wei, Ben Xue, Xihang Yang, Tengfei Wu, Yue Wang, Ruixiang Yang, Qingqing Guo, Teli Xi   +9 more
wiley   +1 more source

Dynamic Generation of Spatially Variable Vector Beams Using Cascaded Moiré Metasurfaces

Nanophotonics, Volume 15, Issue 17, 11 September 2026.
A three‐layer cascaded moiré metasurface dynamically generates vector beams with tunable polarization order and controllable lateral focal positions. Relative rotation of the first two layers adjusts the conjugate OAM components that form the vector beam, whereas the third layer steers its focus across the transverse plane, preserving the dominant OAM ...
Siyu Guo, Zhongzhu Liang, Zhe Wu, Xintong Wei, Shijia Zhu, Junying Liu, Siyu Liu, Qiaohan Liu, Xiaoyan Shi, Fuming Yang, Haiyang Xu   +10 more
wiley   +1 more source

Misaligning Cascaded Liquid Crystal Elements for Continuously Tunable Axial Spin‐Dependent Splitting

Nanophotonics, Volume 15, Issue 17, 11 September 2026.
Continuously tunable axial spin splitting is achieved by controlling the lateral misalignment of cascaded Pancharatnam‐Berry phase liquid crystal elements. The displacement generates a spin‐dependent quadratic phase, enabling linear, sign‐reversible focal adjustment and dynamic focus interchange for orthogonal circular polarizations.
Yougang Ke, Xinhuai Gu, Linzhou Zeng, Zhangming Hong, Jingqing Yu, Yingqun Xiao, Xinxing Zhou, Jin Li   +7 more
wiley   +1 more source

Aberration correction and complementary beam subtraction in light-sheet fluorescence microscopy. [PDF]

J Biomed Opt
Zhang Y, Yang R, Li X, Dan D, Yang Y, Liu Y, Li R, Qian J, Dai T, Kong L, Yu X, Yao B.   +11 more
europepmc   +1 more source

SWIFT-Mamba: A Lightweight State Space Model Toward In Situ Verification of Airborne Wavefront Sensing Signals. [PDF]

Sensors (Basel)
Ma J, Wang H, Fan Y, Jiang W, Su J.
europepmc   +1 more source

Estimation of the total error of modal wavefront reconstruction with Zernike polynomials and Hartmann-Shack test

, 2005
The paper discusses the influence of the Hartmann-(Shack) wavefront sensor geometry on the total error of modal wavefront reconstruction. A mathematical model is proposed which describes modal wavefront reconstruction based on Hartmann or Hartmann-Shack ...
Vdovin, G. (author), Soloviev, O. (author), Soloviev, O., Vdovin, G.   +3 more
core   +1 more source