Results 101 to 110 of about 832 (228)

Research on Noise Reduction and Analysis of Reciprocating Friction Vibration Signals Based on the Complementary Ensemble Empirical Mode Decomposition. [PDF]

Sensors (Basel)
Yu Y, Wei H, Liu Z.
europepmc   +1 more source

A Frequency Reconfigurable Folded Antenna for Cognitive Radio Communication. [PDF]

Micromachines (Basel), 2023
Ibrahim AA, Ali WAE, Alathbah M, Mohamed HA.   +3 more
europepmc   +1 more source

La qualité du bois de pin maritime.

, 2005
Cet article nous présente les principales caractéristiques de la qualité du bois de pin maritime. Bien que les études aient été réalisées sur des pins d'origine landaise, les résultats sont pour l'essentiel transposable au pin mésogéen.
openaire   +1 more source

The Early Upper Palaeolithic in British caves: problems and potential Le Paléolithique supérieur ancien dans les grottes de Grande‐Bretagne : problèmes et potentiels

Journal of the Royal Anthropological Institute, EarlyView.
Recent years have seen landmark progress in our understanding of early Homo sapiens occupation of Europe, owing to new excavations and the application of new analytical methods. Research on British sites, however, continues to lag. This is because of limitations inherent in existing cave collections, and limited options for new fieldwork at known sites.
Robert Dinnis
wiley   +1 more source

New investigations of the Hjortspring boat: Dating and analysis of the cordage and caulking materials used in a pre-Roman iron age plank boat. [PDF]

PLoS One
Fauvelle M, Bengtsson B, Pipping O, Hollmann M, Mortensen MN, Toft P, Ganji S, Green A, Horn C, Hall S, Kaul F, Ling J.   +11 more
europepmc   +1 more source

Genetic differentiation and adaptive evolution of buff‐tailed bumblebees in Asia

Insect Science, EarlyView.
This study investigates the genetic differentiation and local adaptation of the buff‐tailed bumblebee (Bombus terrestris) across its European and Asian populations. Using whole‐genome resequencing, we identified distinct genetic differences between populations, with Asian B. terrestris representing a unique genetic resource.
Long Su, Lele Ding, Paul H. Williams, Yan Liu, Ruijuan Wang, Xiaoyan Dai, Shan Zhao, Haolin Fu, Xiaomeng Zhao, Quangui Wang, Yancan Li, Huiling Sang, Robert M. Waterhouse, Yifan Zhai, Cheng Sun   +14 more
wiley   +1 more source

Enhancing performance of gravitational water vortex turbines through airfoil design and basin parameters. [PDF]

Sci Rep
Michel M, Alaktaa AH, Elsherbiny K, Mehanna A, Shehata AS.   +4 more
europepmc   +1 more source

The Earliest Feathers from the Lower Cretaceous Dabeigou Formation of North Hebei: Implications for the Early Evolution of the Jehol Biota

Integrative Zoology, EarlyView.
This study reports two isolated feather fossils from the Lower Cretaceous Dabeigou Formation in northeastern China. Morphological analyses identified them as the earliest known feathered theropods (potentially including avian) in the Jehol Biota. This finding reveals a complex ecosystem at the dawn of the Jehol Biota, bridging the temporal and faunal ...
Qian Wu, Qian‐Nan Zhang, Dang‐Peng Xi   +2 more
wiley   +1 more source

Effects of forest composition and structure on breeding bird communities in Mount Edough (north-eastern Algeria). [PDF]

Biodivers Data J
Brahmia Z, Machtoub R, Benyacoub S, Ziane N, Rouag R.   +4 more
europepmc   +1 more source

Expérience d'ébourgeonnement sur le pin maritime [PDF]

Annales des Sciences Forestières, 1978
openaire   +2 more sources