Results 21 to 30 of about 49,441 (308)

Passivation of Current-Controlled Grid-Connected VSCs Using Passivity Indices

open access: yesIEEE Transactions on Industrial Electronics, 2019
Passivity-based analysis and controller design offer a promising approach to guarantee the stability of power systems. If all grid-connected components act strictly passive, critical oscillations cannot arise. Recent research establishes design guidelines for current-controlled voltage-source converters that allow obtaining a nonnegative real part of ...
Florian Hans   +3 more
openaire   +2 more sources

Odontocete detections are linked to oceanographic conditions in the Hawaiian Archipelago

open access: yesCommunications Earth & Environment, 2023
Understanding environmental drivers of species’ behavior is key for successful conservation. Within cetacean research, studies focused on understanding such drivers often consider local conditions (e.g., sea surface temperature), but rarely include large-
Morgan A. Ziegenhorn   +4 more
doaj   +1 more source

Microwave Indices from Active and Passive Sensors for Remote Sensing Applications [PDF]

open access: yes, 2019
Past research has comprehensively assessed the capabilities of satellite sensors operating at microwave frequencies, both active (SAR, scatterometers) and passive (radiometers), for the remote sensing of Earth’s surface.
Santi, Emanuele, Paloscia, Simonetta
core   +1 more source

The convergence between sustainability and conventional stock indices. Are we on the right track? [PDF]

open access: yes, 2021
The growth of passive and socially responsible (SR) investment makes that sustainability indices play an important role in defining what constitutes a sustainable investment. In order to know the suitability of sustainability indices as benchmarks for SR
Sarto J.L., Vilas P., Andreu L.
core   +2 more sources

Using vegetation indices for soil-moisture retrievals from passive microwave radiometry [PDF]

open access: yesHydrology and Earth System Sciences, 2001
Surface soil moisture and the nature of the overlying vegetation both influence microwave emission from land surfaces significantly. One widely discussed but underused method for allowing for the effect of vegetation on soil-moisture retrievals from ...
E.J. Burke   +5 more
doaj  

High-Throughput Field Phenotyping of Leaves, Leaf Sheaths, Culms and Ears of Spring Barley Cultivars at Anthesis and Dough Ripeness

open access: yesFrontiers in Plant Science, 2017
To optimize plant architecture (e.g., photosynthetic active leaf area, leaf-stem ratio), plant physiologists and plant breeders rely on destructively and tediously harvested biomass samples.
Gero Barmeier, Urs Schmidhalter
doaj   +1 more source

PAIN

open access: yesProceedings of the Workshop on QoE-based Analysis and Management of Data Communication Networks, 2017
Understanding the quality of web browsing enjoyed by users is key to optimize services and keep users’ loyalty. This is crucial for Internet Service Providers (ISPs) to anticipate problems. Quality is subjective, and the complexity of today’s pages challenges its measurement.
TREVISAN, MARTINO   +2 more
openaire   +3 more sources

Fractal grooves applied to passive micro-mixers [PDF]

open access: yes, 2011
The purpose of the present work is to study on the application of a navel fractal pattern to passives micro-mixers. The SU-8 soft lithography is used to transfer the fractal grooves and the micro channel to PDMS mold on a glass.
Kao, A-fu; Yang, Lung-jieh; Yeh, Fu-wen
core   +1 more source

ICESat-2 Bathymetric Signal Reconstruction Method Based on a Deep Learning Model with Active–Passive Data Fusion

open access: yesRemote Sensing, 2023
When carrying out SDB (satellite-derived bathymetry) in island area based on ICESat-2 (Ice, Cloud, and land Elevation Satellite 2) data, it is often found that the ICESat-2 bathymetric signals are partially missing due to the influence of thick aerosols ...
Zihao Leng   +3 more
doaj   +1 more source

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