Results 31 to 40 of about 839 (175)

A shining starlet: Nematostella vectensis as a model for developmental, regenerative, and comparative biology

open access: yesDevelopmental Dynamics, EarlyView.
Abstract The sea anemone, Nematostella vectensis, has been used as a model organism in developmental biology studies for many years. This estuarine species has the notable capacity to regenerate its full body plan from small pieces throughout life. Nematostella have been described as having a great degree of cellular plasticity.
Patrick A. Lewis   +3 more
wiley   +1 more source

Automated Lawn Maintenance: An Agronomic and Operational Review of Turf Health, Biodiversity, and Field Performance

open access: yesJournal of Field Robotics, EarlyView.
ABSTRACT Grass mowing is one of the most resource‐consuming activities in green maintenance, whether in private areas such as home gardens or in public spaces like urban parks. In recent years, concerns related to climate change, human health, and sustainability have become increasingly prominent in green maintenance, leading manufacturers and industry
Andrea Palladini   +3 more
wiley   +1 more source

Electric drives of traction rolling stocks with ac motors [PDF]

open access: yesTransport, 2006
The paper considers the variation of circuit design of the electric drives in traction rolling stocks when traditional DC electric machines are replaced with AC electric machines. Simplified circuit diagrams of the electric drives using electric machines
L. P. Lingaitis, L. Liudvinavičius
doaj   +3 more sources

Application of numerical methods to the analysis of the magnetic field in AC traction machines

open access: yesВестник Научно-исследовательского института железнодорожного транспорта, 2023
Introduction. This article examines the current approach to the design of rotating electrical machines. An overview is given of existing software packages for modelling electromagnetic and thermal processes using numerical finite element methods ...
A. S. Zuev, M. D. Gluschenko
doaj   +1 more source

Peptide‐based antibacterial nanoplatforms: Design principles, stimuli‐regulated behaviors, and applications

open access: yesResponsive Materials, EarlyView.
Peptide‐based antibacterial nanoplatforms, encompassing self‐assembled peptides and peptide‐engineered inorganic, polymeric, and lipid nanocarriers, are systematically reviewed. The article highlights design principles and stimuli‐responsive regulation for improving peptide stability, delivery efficiency, and antibacterial performance.
Peng Tan   +8 more
wiley   +1 more source

Towards an ‘absolute’ timing of biostratigraphic and environmental phases from the Saalian late glacial to the Weichselian pleniglacial in central Europe—Insights from a lacustrine succession in Lichtenberg, northern Germany

open access: yesBoreas, EarlyView.
Palynological records are central to the biostratigraphic subdivision of the Late Pleistocene in central Europe. Yet many interglacial and interstadial phases—such as the Eemian, Brörup and Odderade—remain only poorly constrained in time due to limited numerical dating.
Michael Hein   +19 more
wiley   +1 more source

Enhancing Self‐Reflection and Assessment in Dental Education: A Comparative Study on e‐Portfolio Use in Preclinical and Clinical Training

open access: yesEuropean Journal of Dental Education, EarlyView.
ABSTRACT Purpose E‐portfolios support reflective learning, competency development and personalised assessment. This study compared dental students' perceptions of e‐portfolio use between preclinical fourth‐year and clinical fifth‐year training, focusing on benefits, challenges and assessment preferences.
Juan Ignacio Aura‐Tormos   +2 more
wiley   +1 more source

How L2 Learners Negotiate Meaning in GenAI‐Supported Creative Writing

open access: yesInternational Journal of Applied Linguistics, EarlyView.
ABSTRACT This qualitative study explores how second language (L2) learners negotiate meaning and co‐construct knowledge with generative AI (GenAI) in a 12‐week multimodal creative writing project. Chinese middle school students (N = 75) created English picture books using a conversational GenAI agent supporting textual and text‐to‐image generation.
Zhihui Zhang   +3 more
wiley   +1 more source

Design of JD155 Permanent Magnet Synchronous Traction Motor for Metro Vehicle

open access: yesKongzhi Yu Xinxi Jishu, 2012
This paper describes the design method based on multi-physics coupling simulation of permanent magnet synchronous traction motor for rail transit. Taking JD155 permanent magnet synchronous traction motor for Shenyang Metro Line 2 as an example, it ...
FU Minli, HE Siyuan, LI Yifeng, PENG jun
doaj  

METHODOLOGICAL AND INSTRUMENTAL SUPPORT TO DEVELOPMENT OF ELECTRIC TRACTION SYSTEMS WITH ASYNCHRONOUS MOTOR

open access: yesJournal of Engineering Science, 2023
The present work aims to analyze from a methodological and instrumental point of view the development of asynchronous motor propulsion systems. For this purpose, PWM and SVM modulation methods, FOC and DTC vector control techniques, as well as their advantages and disadvantages are described.
openaire   +1 more source

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