Results 91 to 100 of about 43,943 (330)

Understanding Engagement in Collaborative Governance Networks Through Motivation, Learning, and Values

open access: yesEnvironmental Policy and Governance, EarlyView.
ABSTRACT Collaborative governance networks are increasingly central to local climate action, yet research offers limited understanding of the personal, psychological, and informal factors that sustain engagement within them. This paper examines how such networks facilitate meaningful and lasting participation through an in‐depth study of Malmö Works, a
Gustav Osberg
wiley   +1 more source

Genetic algorithm with regularization method to retrieve ocean atmosphere duct

open access: yesActa Physica Sinica, 2012
Due to the fact that regularization method can overcome the ill-posed characteristic and obviously suppress noise and errors propagation in practical inverse problem, a new algorithm (genetic algorithm with regularization method) is proposed, combining fitness function of genetic algorithm with regularization term to retrieve ocean duct parameter ...
null He Ran   +3 more
openaire   +1 more source

AiResearch QCGAT engine: Acoustic test results [PDF]

open access: yes, 1980
The noise levels of the quiet, general aviation turbofan (QCGAT) engine were measured in ground static noise tests. The static noise levels were found to be markedly lower than the demonstrably quiet AiResearch model TFE731 engine.
Kisner, L. S.
core   +1 more source

Experimental and numerical investigation of Helmholtz resonators and perforated liners as attenuation devices in industrial gas turbine combustors [PDF]

open access: yes, 2014
This paper reports upon developments in the simulation of the passive control of combustion dynamics in industrial gas turbines using acoustic attenuation devices such as Helmholtz resonators and perforated liners.
Houston, B.   +6 more
core   +1 more source

Coupled Fluid–Structure–Acoustic Analysis of Flow‐Induced Noise Control Using an Elastic Baffle in a Micro Channel

open access: yesEnergy Science &Engineering, EarlyView.
This research explores how fluid flow, structural movement, and sound interact in an elastic baffle system. Using a numerical approach based on the finite element method, the study analyzes how noise and vibrations change with different baffle configurations. The findings reveal that shortening the baffle by half reduces noise transmission by 9%, while
Tohid Adibi   +5 more
wiley   +1 more source

Experimental Investigation of Burning Liquids in Reduced Oxygen

open access: yesFire and Materials, EarlyView.
ABSTRACT The effects of oxygen concentration on combustion of gases have been investigated on fundamental levels in several studies. However, the same type of fundamental studies has not been made for liquid or solid fuels due to complex relationships between flame structure and changing mass loss rates (MLR).
Joakim Åström   +3 more
wiley   +1 more source

Optimizing Circular Side-Resonators to Reduce Computer Fan Noise [PDF]

open access: yes, 2004
One of the main noise sources in computers are the cooling fans. Tonal noise at the rotational frequency of the fan, the blade passing frequency (BPF) and its higher harmonics are important in fan noise. So called 'side-resonators' integrated in the duct
Beltman, Willem M., Nijhof, Marten J.J.
core   +1 more source

Arp2/3 complex and β1 integrin drive an invasive front through extracellular matrix adaptation in pancreatic cancer

open access: yesInternational Journal of Cancer, EarlyView.
What's New? Pancreatic ductal adenocarcinoma is characterized by a dense extracellular matrix, and how invasive tumor cells overcome such biomechanical constraints remains unclear. This study identifies the actin‐related protein 2/3 complex as a key regulator of pancreatic ductal adenocarcinoma invasiveness, driving fibroblast migration through β1 ...
Xiufen Yang   +15 more
wiley   +1 more source

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