Results 71 to 80 of about 1,822 (225)

Gender, Stereotypes, and Competitive Performance Gap: An Experimental Investigation

Managerial and Decision Economics, EarlyView.
ABSTRACT This study investigates how participants in competition react to gender stereotypes in performance. We propose two novel gender‐oriented tasks: clicking as a male‐oriented task and face recall as a female‐oriented task with two treatment conditions, which can strengthen shared gender stereotypes and foster gender competition.
Jaesun Lee, Ming Jiang, SeEun Jung
wiley   +1 more source

A Parametric Investigation of Geometric Variation on Fluid Dynamic Instabilities in Axial Compression Systems

International Journal of Rotating Machinery, 2012
The ability to predict the nature of instabilities is highly important from the compressor design point of view since their consequences could result in widely varying difficulties with the fluid dynamic performance of the systems.
Ananth Sivaramakrishnan Malathi, A. Kushari   +1 more
doaj   +1 more source

Robustness of rotating stall control for axial-flow compressors

Proceedings of the 2002 American Control Conference (IEEE Cat. No.CH37301), 2002
Feedback control has been pursued to address the rotating stall problem in axial flow compressors in order to extend the stable operating range and to improve engine performance. These controllers guarantee the stability of the bifurcated operating solution near the stall point.
Ali Tahmasebi, Xiang Chen
openaire   +2 more sources

Using a social‐ecological macrosystems framework to understand how human activities alter ecological synchrony

People and Nature, EarlyView.
Abstract Different aspects of ecological systems, biotic or abiotic, often fluctuate in coordinated patterns over space and time. Such high concordance between ecological processes is often referred to as ecological synchrony. Human activities, including and beyond climate change, have the potential to alter ecological synchrony by disrupting or ...
Yiluan Song, Mallory Barnes, K. Ann Bybee‐Finley, Kyla M. Dahlin, Travis McDevitt‐Galles, Stephan B. Munch, Guillermo E. Ponce‐Campos, Casey Youngflesh, Benjamin Zuckerberg, Kai Zhu   +9 more
wiley   +1 more source

Enforcing environmental law in the Amazon

People and Nature, EarlyView.
Abstract This article identifies the underlying obstacles to enforcement of laws against environmental crimes such as illegal logging, mining and ranching. With four departments (provinces) from Colombia as case studies, it assesses enforcement of the country's main environmental law, Law 2111, which is one of Latin America's strongest. The article has
Mark Ungar, Juan Corredor‐Garcia
wiley   +1 more source

A Review of Advances in Composite Materials, Structural Optimization, and Machine Learning for Wind Turbine Blades: Challenges and Future Perspectives

Polymer Composites, EarlyView.
Overview of the holistic engineering lifecycle and core research pillars for wind turbine blades. ABSTRACT This paper reviews recent advancements across the lifecycle of wind turbine blades, focusing on three interconnected areas: advanced composites, structural optimization, and machine learning (ML) diagnostics. In materials, we highlight progress in
Kemal Hasirci, Denizhan Yavas, Alaeddin Burak Irez   +2 more
wiley   +1 more source

Weeds in a changing climate: Competitors or service plants?

PLANTS, PEOPLE, PLANET, EarlyView.
Reducing herbicide use and preparing agroecosystems for climate change are two top priorities on the global policy agenda. Here, we explore whether these two challenges can be tackled simultaneously. While weeds are generally considered a threat to crop production, we show that weeds can help overcome climate change challenges in agroecosystems ...
Marie J. Zwetsloot, Marie‐Charlotte Bopp, Lammert Bastiaans, Elena Kazakou, Aurélie Metay, Gabriel Y. K. Moinet, Karim Barkaoui, Guillaume Fried, Léo Garcia, Merel Hofmeijer, Martine van der Ploeg, Maria Stefania Przybylska, Gerlinde B. De Deyn   +12 more
wiley   +1 more source

Experimental investigation and detached-eddy simulation of compressor aerodynamic performance in inlet distortion

AIP Advances, 2019
This paper presents an investigation into the interaction between a low-speed compressor and a circumferential inlet distortion, through high-resolution measurements and full annulus Detached-Eddy simulation.
Youtian Zhou, Jun Li, Guoxing Song
doaj   +1 more source

Stalled Flow Performance for Axial Compressors: II — Rotating Stall Characteristic [PDF]

Volume 1: Turbomachinery, 1984
This paper describes a study of stalled flow performance of multistage compressors. The study is focused on the performance in rotating stall, in particular, the impact on stall inception and stall recovery. It is argued that the recovery point measured in post-stall compressor tests results from a compression system instability, rather than from an ...
openaire   +1 more source

Sliding Mode Control in Aerospace Applications: A Survey

International Journal of Robust and Nonlinear Control, EarlyView.
ABSTRACT Sliding mode control (SMC) enjoys robustness to matched and unmatched (in the case of minimum phase input‐output dynamics) bounded perturbations, and finite time convergence. Second‐order and higher‐order sliding mode control systems (2‐SMC/HOSMC) retain all the advantages of sliding mode control, but in addition can be applied to systems of ...
Yuri Shtessel, Christopher Edwards
wiley   +1 more source