Results 81 to 90 of about 251,704 (215)

A Haar Wavelet Decision Feedback Channel Estimation Method in OFDM Systems

Applied Sciences, 2018
Channel estimation is a key technology in improving the performance of the orthogonal frequency division multiplexing (OFDM) system. The pilot-based channel estimation method decreases the spectral efficiency and data transmission rate. Some conventional
Ruiguang Tang, Xiao Zhou, Chengyou Wang
doaj   +1 more source

Efficient Gaussian Simulations of Fermionic Open Quantum Systems

Advanced Quantum Technologies, Volume 9, Issue 4, April 2026.
Building upon Bravyi's fundamental theoretical framework, efficient classical simulation methods are reviewed and further developed for general fermionic Gaussian processes. The emphasis remains on a unified approach applicable to generic fermionic Gaussian operations.
Yinan Fang, Hyesung Choi, Minchul Lee, Mahn‐Soo Choi   +3 more
wiley   +1 more source

Using Automated Psychological Tools for Understanding and Improving Mental Health Outcomes in Aotearoa

Journal of the Royal Society of New Zealand, Volume 56, Issue 2, April 2026.
Aotearoa New Zealand has one of the highest rates of anxiety and depression globally, with Māori and Pacific groups carrying the greatest burden. We need to better understand the driving factors to improve the availability and flexibility of our treatment pathways.
Olivia K. Harrison, Kelis Tosala (Ngāti Manawa, Tūhoe, Ngāti Maniapoto, Te Rarawa; Ngāti Awa), Char’lee A. D. Jones (Ngāi Takoto, Ngāti Kahu, Ngāti Kurī, Te Aupōuri), Rebekah Kennedy, Alireza F. Nia, Gonzalo D. Maso Talou, Cassandra Dawson, Martin Sellbom, Esther Willing (Ngāti Toarangatira, Ngāti Koata, Ngā Ruahine), Ella McLeod, Dirk Johannßen, Merata Kawharu (Ngāti Whātua, Ngāpuhi), Stephanie Schoss, Amanda Clifford (Waitaha, Kāi Tahu, Kāti Māmoe)   +24 more
wiley   +1 more source

Efficient Kilometer‐Scale Precipitation Downscaling With Conditional Wavelet Diffusion

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 2, April 2026.
Abstract Precipitation products such as Integrated Multi‐satellitE Retrievals have coarse resolution (∼10 ${\sim} 10$ km), which limits their application in hydrological modeling and extreme weather analysis. We propose the Wavelet Diffusion Model (WDM), a fast generative framework for high‐quality precipitation downscaling trained on multi‐radar multi‐
Chugang Yi, Minghan Yu, Weikang Qian, Yixin Wen, Haizhao Yang   +4 more
wiley   +1 more source

Bayesian perspective for orientation determination in cryo‐EM with application to structural heterogeneity analysis

Acta Crystallographica Section D, Volume 82, Issue 4, Page 274-294, April 2026.
A Bayesian perspective on orientation estimation in cryo‐EM is presented, with the minimum mean‐square error estimator outperforming standard cross‐correlation‐based approaches, particularly under challenging low signal‐to‐noise conditions. We demonstrate that improved orientation estimation has a decisive impact on 3D reconstruction quality and ...
Sheng Xu, Amnon Balanov, Amit Singer, Tamir Bendory   +3 more
wiley   +1 more source

‘Een loodzware rugzak’

Handelingen, 2017
Ayla (34) werd twee jaar geleden gedetineerd omwille van de doodslag op haar partner. De feiten gebeurden tijdens een echtelijke ruzie. Het boterde echter reeds langer niet meer tussen Ayla en haar man. Eerder had hij haar met de dood bedreigd en er was
Siebrecht Vanhooren
doaj   +1 more source

Leaders' Relational Energy and Employee Job Outcomes: A Moderated Mediation Model Across Three Countries

Asia Pacific Journal of Human Resources, Volume 64, Issue 2, April 2026.
ABSTRACT Our paper challenges current understanding of the importance of relational leadership by demonstrating how the relational energy of leaders influences employee job satisfaction, career satisfaction, and OCBs across three countries. Our overall sample was n = 1277 and comprised employees from New Zealand (n = 427), Australia (n = 401), and the ...
Maree Roche, Jarrod Haar, David Brougham
wiley   +1 more source

The Healing Hermeneutics of Carnal Caring in Neonatal Intensive Care Units

Nursing Philosophy, Volume 27, Issue 2, April 2026.
ABSTRACT The importance of the incorporation of the body and the senses, especially touch, in caring for infants in neonatal intensive care units (NICUs) has been widely researched, resulting in practices such as skin‐to skin care. This article takes a step back to scrutinise the underlying assumptions of these practices and links the notions of a ...
Cas Wepener, Clara Wepener, Berna Gerber
wiley   +1 more source

Function spaces for decoupling

Journal of the London Mathematical Society, Volume 113, Issue 4, April 2026.
Abstract We introduce new function spaces LW,sq,p(Rn)$\mathcal {L}_{W,s}^{q,p}(\mathbb {R}^{n})$ that yield a natural reformulation of the ℓqLp$\ell ^{q}L^{p}$ decoupling inequalities for the sphere and the light cone. These spaces are invariant under the Euclidean half‐wave propagators, but not under all Fourier integral operators unless p=q$p=q$, in ...
Andrew Hassell, Pierre Portal, Jan Rozendaal, Po‐Lam Yung   +3 more
wiley   +1 more source

Unitarily invariant valuations on convex functions

Journal of the London Mathematical Society, Volume 113, Issue 4, April 2026.
Abstract Continuous, dually epi‐translation invariant valuations on the space of finite‐valued convex functions on Cn$\mathbb {C}^n$ that are invariant under the unitary group are investigated. It is shown that elements belonging to the dense subspace of smooth valuations admit a unique integral representation in terms of two families of Monge–Ampère ...
Jonas Knoerr
wiley   +1 more source