نتایج جستجو برای: wings parties
تعداد نتایج: 34754 فیلتر نتایج به سال:
The aerodynamics of flapping flight for the smallest insects such as thrips is often characterized by a 'clap and fling' of the wings at the end of the upstroke and the beginning of the downstroke. These insects fly at Reynolds numbers (Re) of the order of 10 or less where viscous effects are significant. Although this wing motion is known to augment the lift generated during flight, the drag r...
Issues 4, 5 and 6 together are a triple issue with focus on maternal health. The is trilogy of sorts including papers about care perceptions for prenatal, pregnancy and...
Embryos and gamete cryopreservation contract is a contract between the embryos cryopreservation applicant and cryopreservation centers to freeze and preserve their embryos and gamete. This article aims to review constitutional conditions of validity, parties` obligation, sanction and dissolution methods of embryos and gamete cryopreservation contract. Research method has been revision in some p...
To examine the propulsion mechanism of diving Atlantic puffins (Fratercula arctica), their three-dimensional kinematics was investigated by digital analysis of sequential video images of dorsal and lateral views. During the dives of this wing-propelled bird, the wings are partly folded, with the handwings directed backwards. The wings go through an oscillating motion in which the joint between ...
Detailed investigations on the structural and mechanical properties of the forewing of the cicada were carried out. Measurement of the structures of the wings showed that the thickness of the membrane of each cell and the diameter of each vein were non-uniform in both the longitudinal and transverse directions, and their means were approximately 12.2 and 133.3 microm, respectively. However, the...
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