Results 81 to 90 of about 1,822 (225)

Numerical investigation on the shock-wave and flow structures in a transonic contra-rotating axial compressor

Advances in Mechanical Engineering, 2017
Numerical simulation has been conducted on a transonic contra-rotating axial compressor to investigate the shock wave and flow characteristics under various operation conditions.
Hanru Liu, Yangang Wang, Songchuan Xian, Jun Zhang   +3 more
doaj   +1 more source

Enhancing Reference Tracking in Induction Motor Drives: A Hybrid Model Predictive Control and Artificial Neural Network Approach

International Journal of Robust and Nonlinear Control, EarlyView.
ABSTRACT Induction motors (IMs) are widely used in industry for their robustness and cost‐effectiveness, yet their nonlinear and multivariable dynamics pose significant challenges for high‐performance speed control. Model Predictive Control (MPC) is a well‐established solution but suffers from limitations related to model accuracy and parameter ...
Asier del Rio, Oscar Barambones, Eneko Artetxe, Jokin Uralde, Isidro Calvo   +4 more
wiley   +1 more source

Digital Engineering Transformation as a Sociotechnical Challenge: Categorization of Barriers and Their Mapping to DoD's Policy Goals

Systems Engineering, EarlyView.
ABSTRACT Digital Engineering (DE) transformation represents a paradigm shift in systems engineering (SE), aiming to integrate heterogeneous analytical models and digital artifacts into an authoritative source of truth to improve traceability and lifecycle management.
Md Doulotuzzaman Xames, Taylan G. Topcu
wiley   +1 more source

A Model for Predicting Post-Stall Behavior of Axial Compressors

Journal of Applied Fluid Mechanics, 2021
The current paper reports on a new theory developed by modifying the basic Moore-Greitzer model, which can predict the performance of a compression system during the instabilities in more details.
M. Shahriyari, H. Khaleghi, M. Heinrich
doaj  

Modeling the Paths from L2 Use and Socio‐Affective Variables to Communication Skills: A Mixed‐Methods Approach

TESOL Quarterly, EarlyView.
Abstract Previous research demonstrated that communication anxiety reduces L2 learners' willingness to communicate and communication frequency, but left unexplored its impact on performance. The current mixed‐methods study investigated factors impacting L2 communication skills.
Debra M. Hardison
wiley   +1 more source

Thermal Degradation and Thermal Decomposition of Plasticized PVC Including POSS Additives for PVC Compounds: Mechanisms, Impact, and Performance of Standards

Journal of Vinyl and Additive Technology, EarlyView.
Additives' structures. ABSTRACT Poly(vinyl chloride) has been a key polymeric material since its commercial production in 1931, demonstrating versatility across numerous industries due to its compatibility with various additives. PVC's inherent properties, flame retardance, durability, and recyclability make it ideal for building and construction ...
Stefano Gardi, Gianluca Sarti, Luca Palin, Enrico Boccaleri, Alberto Frache   +4 more
wiley   +1 more source

Interannual dynamic resource selection patterns of the northern bobwhite in a region with poor edaphic conditions

Wildlife Biology, EarlyView.
Understanding an organism's shifting resource needs throughout its life cycle is crucial for developing effective conservation strategies. Northern bobwhite Colinus virginianus populations have been declining for nearly a century due largely to habitat loss/degradation.
Autumn S. Randall, Theron M. Terhune, Darin J. McNeil   +2 more
wiley   +1 more source

Amidst (waste) abundance: world‐making and struggles in hosting a municipal landfill in the Bolivian lowlands Au milieu de l'abondance (de déchets) : fabrication du monde et luttes liées à la gestion d'une décharge municipale dans les basses terres de Bolivie

Journal of the Royal Anthropological Institute, EarlyView.
In recent decades, solid waste has proliferated worldwide, becoming a pressing global issue. This article explores the role of Indigenous people dwelling within and upon emerging waste scenarios, with a specific focus on involved forms of sociality and ontological contestation. Drawing on the case of a municipal landfill sited on a Guarani community in
Vanesa Martín Galán
wiley   +1 more source

The Impact of Financial Reporting Mandates on Labor Unions

Journal of Accounting Research, EarlyView.
ABSTRACT Labor unions in the United States are subject to financial reporting mandates. This study examines how these mandates affect unions and their members. Using several regulation‐based empirical designs, we document that more granular reporting requirements adversely affect unions' election outcomes.
QINGKAI DONG, ANTHONY LE
wiley   +1 more source

A Case Report: Management of Developmental Dysplasia With Cystic Lesions of the Left Hip Acetabular Bone With Pemberton Pelvis Osteotomy Planned With a 3D‐Printed Model

Pediatric Discovery, EarlyView.
Ting Li, Ke Sun, Jianglong Xu, Yushu Liu, Shengping Tang   +4 more
wiley   +1 more source