Dark wings of desire

Variations in ornamentation of wings and palpi of Anopheles (Cellia) subpictus Grassi collected from northwest India.

An. subpictus Grassi is a dominant species in Haryana and Uttaranchal states. Though it is a non-vector species but recently infected specimens with malarial parasite have been reported from India, Indonesia and Java1. This species is distributed throughout India, Afghanistan, Borneo, China, Malaysia, Myanmar, Philippines, Sri Lanka, Java and Indonesia. Morphological variations have been record...

Experimental Investigation of Asymmetry of Vortex Flow Over Single Delta Wings

It is generally believed that, on slender delta wings, there is a critical state at which strong asymmetric vortices are found along the leading edge on the lee-side of the delta wing. These asymmetric vortices can lead to high lateral forces even when slender delta wing is at the zero angle of yaw. Some experimental studies reported recently, cast considerable doubt as to the validity of the a...

Photoperiod and the relationship between wing length and body weight in Anopheles quadrimaculatus.

The effect of photoperiod on wing length, body weight, and relationship between wing length and body weight was investigated in the mosquito species Anopheles quadrimaculatus. Individuals reared under a short photoperiod (8 h light: 16 h dark) had longer wings and larger weights than did those reared under a long photoperiod (16 h light: 8 h dark). Covariance analysis showed that photoperiod an...

NUMERICAL ANALYSIS OF MAVs FLAPPING WINGS IN UNSTEADY CONDITIONS

Today, Flapping Micro Aerial Vehicles (MAV) are used in many different applications. Reynolds Number for this kind of aerial vehicle is about 104 ~ 105 which shows dominancy of inertial effects in comparison of viscous effects in flow field except adjacent of the solid boundaries. Due to periodic flapping stroke, fluid flow is unsteady. In addition, these creatures have some complexities in kin...

A New Simple Analytical Model for Flow Analysis Over Slender Delta Wings