Results 31 to 40 of about 51,507 (363)

Numerical Investigation on Flapping Aerodynamic Performance of Dragonfly Wings in Crosswind

International Journal of Aerospace Engineering, 2020
Numerical simulations are performed to investigate the influence of crosswind on the aerodynamic characteristics of rigid dragonfly-like flapping wings through the solution of the three-dimensional unsteady Navier-Stokes equations. The aerodynamic forces,
Chao Wang, Rui Zhang, Chaoying Zhou, Zhenzhong Sun   +3 more
doaj   +1 more source

The impacts of environmental warming on Odonata: a review [PDF]

, 2008
Climate change brings with it unprecedented rates of increase in environmental temperature, which will have major consequences for the earth's flora and fauna.
Adams J., Alcamo J., Angelibert S., Aoki T., Arendt J. D., Askew R. R., Atkinson D., Balmford A., Bendell B. E., Blanckenhorn W. U., Blumenshine S. C., Boehms C., Boothby J., Boothby J., Both C., Braune E., Brown J. H., Burgmer T., Carpenter S. R., Cham S. A., Chang X., Clark T. E., Collingham Y. C., Conrad K. F., Conrad K. F., Coope G. R., Coope G. R., Coope G. R., Corbet P. S., Corbet P. S., Corbet P. S., Corbet P. S., Corbet P. S., Corbet P. S., Corbet P. S., Corbet P. S., Corbet P. S., Cordero Rivera A., Crick H. Q.P., Crowley P. H., Dale M., Danilevskii A. S., Daufresne M., Davis M. B., Dawson T. P., De Block M., De Block M., De Block M., De Block M., Dingemanse N. J., Dorn N. J., Dunn R. R., Eversham B. C., Feuchtmayr H. D., Fitter A. H., Flenner I., Grabow K., Gresens S. E., Hammond C. O., Harada T., Harrington R., Harrington R., Hassall C., Hassall C., Heino J., Henrickson B., Hickling R., Hickling R., Hilfert-Rüppell D., Hill J. K., Hitch A. T., Hostetier S. W., Hunger H., Hynes H. B.N., Ingram B. R., Ingram B. R., Jenner C. E., Johansson F., Johansson F., Karl T. R., Knight T. M., Krishnaraj R., Lawton J. H., Leggott M., Lutz P. E., Lutz P. E., Mann M. E., Masseau M. J., May M. L., May M. L., Meehl G. A., Menetrey N., Merritt R., Michiels N. K., Mooij W. M., Nicholls R. J., Nicholls R. J., Norling U., Norling U., Norling U., Opdam P., Ott J., Ott J., Ott J., Pandey J. P., Parmesan C., Parmesan C., Parmesan C., Pearce-Higgins J. W., Phillips B. L., Pickup J., Piironen J., Pilgrim J. M., Polcyn D. M., Pritchard G., Pritchard G., Pritchard G., Pritchard G., Pritchard G., Pritchard G., Purse B. V., Rantala M. J., Robb T., Robb T., Rolff J., Rouquette J. R., Roy D. B., Sawchyn W. W., Schneider C., Shennan I., Sherratt T. N., Simberloff D., Simmons A. D., Siva-Jothy M. T., Siva-Jothy M. T., Slatkin M., Soluk D. A., Sternberg K., Sternberg K., Sternberg K., Sternberg K., Suhling F., Suhling F., Thompson D. J., Thompson D. J., Thompson D. J., Thompson D. J., Thompson D. J., Travis J. M.J., Valtonen P., Van De Meutter F., Van Doorslaer W., Veron J. E.N., Walther G. R., Waringer J. A., Watanabe M., Watts P. C., Williams D. D., Winder M., Woodward G., Woodward G., Wootton R. J., Xenopoulos M. A., Xenopoulos M. A., Yourth C. P., Zwolsman J. J.G.   +165 more
core   +1 more source

Selection and Characteristics of the Dragonfly Landing Site near Selk Crater, Titan

The Planetary Science Journal, 2021
The factors contributing to the initial selection of a dune site near the Selk impact structure on Titan as the first landing site for the Dragonfly mission are described.
R. Lorenz, S. MacKenzie, C. Neish, A. L. Gall, E. Turtle, J. Barnes, M. Trainer, A. Werynski, J. Hedgepeth, E. Karkoschka   +9 more
semanticscholar   +1 more source

The biting midge Forcipomyia paludis (Macfie, 1936) (Diptera: Ceratopogonidae) in Slovenia, Bosnia and Herzegovina, Croatia and Sweden

Natura Sloveniae, 2017
Records of the biting midge Forcipomyia paludis (Macfie, 1936) from Slovenia and Bosnia and Herzegovina are reported herewith as the first finds of F. paludis in both countries, together with new records from Croatia and Sweden.
Damjan Vinko, Dejan Kulijer, Magnus Billqvist, Andreas Martens   +3 more
doaj   +1 more source

A computational study of the aerodynamic performance of a dragonfly forewing in gliding flight

MATEC Web of Conferences, 2018
Gliding flight is a common mode of flight for dragonfly, the objective of the current research is to use numerical simulations to explore whether the corrugations have positive effect on aerodynamic performance of the dragonfly wings in gliding flight ...
Liu Huixiang, He Guoyi, Ma Chengyu, Wang Qi, Luo Yun   +4 more
doaj   +1 more source

Some Observations on the Nature of Insect Names [PDF]

, 2017
A recent study of dragonfly names (Montgomery, 1973) has led to a consideration of insect names, especially ancient and early English names. This interest was aroused, chiefly by the statement in Sarot\u27s study of the folklore of the dragonfly from A ...
Montgomery, B. Elwood
core   +3 more sources

Odonate species occupancy frequency distribution and abundance–occupancy relationship patterns in temporal and permanent water bodies in a subtropical area

Ecology and Evolution, 2020
This paper investigates species richness and species occupancy frequency distributions (SOFD) as well as patterns of abundance–occupancy relationship (SAOR) in Odonata (dragonflies and damselflies) in a subtropical area.
Samuel Renner, Marina Schmidt Dalzochio, Eduardo Périco, Göran Sahlén, Jukka Suhonen   +4 more
doaj   +1 more source

Seasonal Migrations of Pantala flavescens (Odonata: Libellulidae) in Middle Asia and Understanding of the Migration Model in the Afro-Asian Region Using Stable Isotopes of Hydrogen

Insects, 2020
In Middle Asia, the dragonfly Pantala flavescens makes regular seasonal migrations. In spring, sexually mature dragonflies (immigrants) arrive in this region for reproduction.
Sergey N. Borisov, Ivan K. Iakovlev, Alexey S. Borisov, Mikhail Yu. Ganin, Alexei V. Tiunov   +4 more
doaj   +1 more source

Form-function relationships in dragonfly mandibles under an evolutionary perspective [PDF]

, 2017
© 2017 The Author(s). Functional requirements may constrain phenotypic diversification or foster it. For insect mouthparts, the quantification of the relationship between shape and function in an evolutionary framework remained largely unexplored.
Blanke, Alexander, Dutel, Hugo, Fagan, Michael J., Patera, Alessandra, Schmitz, Helmut   +4 more
core   +2 more sources

Agonistic anti-NKG2D antibody structure reveals unique stoichiometry and epitope compared to natural ligands

mAbs
Natural killer (NK) cells are effector cells of the innate immune system that distinguish between healthy and abnormal cells through activating and inhibitory receptor signaling.
Daniel Fallon, Ching-Shin Huang, Jingya Ma, Christopher Morgan, Zhaohui Sunny Zhou   +4 more
doaj   +1 more source