Results 181 to 190 of about 4,443 (257)

Study on the Influence of the Surface Altered Layer on Fracture Initiation and Load-Bearing Capacity of Gouged Pipelines. [PDF]

Materials (Basel)
Yang H, He C, Zhang E, Wang F, Cao Y, Zhen Y.   +5 more
europepmc   +1 more source

A Deep Learning Framework for Forecasting Medium‐Term Covariance in Multiasset Portfolios

Journal of Forecasting, Volume 45, Issue 4, Page 1797-1828, July 2026.
ABSTRACT Forecasting the covariance matrix of asset returns is central to portfolio construction, risk management, and asset pricing. However, most existing models struggle at medium‐term horizons, several weeks to months, where shifting market regimes and slower dynamics prevail.
Pedro Reis, Ana Paula Serra, João Gama
wiley   +1 more source

Design of aerogel granule size for thermal insulation of petroleum pipelines. [PDF]

Sci Rep
Liu X, Wu J, Zhang J, Zhao P, Momanyi NK, Zhou Z, Jiang W, Xie Y, Liu L.   +8 more
europepmc   +1 more source

Osteoarthritis: Epidemiology, Diagnosis, and Treatment

MedComm, Volume 7, Issue 7, July 2026.
Osteoarthritis (OA) is a multifactorial degenerative joint disease and a leading cause of disability worldwide. This graphical abstract summarizes the epidemiology, diagnostic strategies, and therapeutic approaches of OA. OA development is driven by aging, metabolic dysregulation, and mechanical stress, leading to progressive joint degeneration ...
Qin Ru, Dongliang Yuan, Shide Jiang, Xiaoxuan Zhao, Xu Liu, Yusheng Li, Shuguang Liu, Yuxiang Wu   +7 more
wiley   +1 more source

Multiscale Simulation and Machine Learning Optimization of Cuttings Transport in Riserless Pipelines Under Bubble Coalescence-Breakup Driven Flow. [PDF]

ACS Omega
Xiang H, Zhang G, Zhang S, Zhang Y.
europepmc   +1 more source

Microstructure Engineering Toward High Cost‐Effective Nd–Fe–B Sintered Magnets: A Review

Rare Metals, Volume 45, Issue 7, July 2026.
ABSTRACT Nd–Fe–B sintered magnets, critical for enhancing electromechanical conversion efficiency and operational stability in wind turbines and electric vehicle drives, are prized for their outstanding coercivity, high remanence, and superior maximum energy product.
Dongmin Zhang, Minggang Zhu, Xu Sun, Qisong Sun, Xiaolong Song, Jingyan Zuo   +5 more
wiley   +1 more source

Analysis and optimization of the J-T valve control logic for offshore oil and gas field low-temperature separators based on K-Spice. [PDF]

Sci Rep
Liu Y, Lin F, Zhu G, Yao Z.
europepmc   +1 more source

Shaping expectations, losing flexibility: A study of CEO promises as strategic communication tools

Strategic Management Journal, Volume 47, Issue 7, Page 1980-2061, July 2026.
Abstract Research Summary CEO promises are powerful but understudied communication tools. We develop a dual‐mechanism framework theorizing that while CEO promises elevate stakeholder expectations, they simultaneously constrain strategic flexibility. We argue that CEO promise‐making is shaped by two competing pressures: making more promises when the ...
Majid Majzoubi, Alex Murray, William J. Mayew   +2 more
wiley   +1 more source

Research on Leakage Diffusion and Prediction Model of Multifactor High-Pressure Buried Hydrogen-Blended Natural Gas Pipeline. [PDF]

ACS Omega
Ban J, Wang X, Yang W, Liu G, Wang X, Yan X, Yuan X.   +6 more
europepmc   +1 more source

Refined Modeling of Arctic Circumpolar Building Stock Increases Estimated Mid‐Century Permafrost Degradation Damages

Earth's Future, Volume 14, Issue 7, July 2026.
Abstract Near‐surface permafrost degradation has the potential to damage infrastructure needed to sustain Arctic communities, but risk assessments remain highly uncertain due to a limited representation of the Arctic circumpolar building stock. With deep learning building footprint detection and building occupancy classification models, we expand the ...
E. Manos, D. A. Streletskiy, C. Witharana, E. Haggerty, A. K. Liljedahl   +4 more
wiley   +1 more source