FLUTTER OPTIMIZATION OF LARGE SWEPT-BACK TRI-WING FLIGHT VEHICLES

Flutter Optimization of Large Swept-Back Tri-Wing Flight Vehicles

The aerodynamic configuration of large swept-back tri-wings is generally adopted for hypersonic vehicles, but the structural stiffness of the ailerons is weak, which may lead to damage due to the flutter behavior.In the initial stage of structural design, studying the flutter characteristics of tri-wing flight vehicles is necessary and can provide

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Piscivorous Vertebrates That May Pose a Risk to the Critically Endangered Mandra Shemaya, Alburnus mandrensis (Drensky, 1943) (Actinopterygii; Leuciscidae)

In the present study, we provide a checklist of the predators that may impact the population of the critically endangered Mandra shemaya (Alburnus mandrensis Drensky, 1943).This endemic fish only inhabits the basin of Mandra Lake in the Burgas district Lens Case (SE Bulgaria) and data on its biology are scarce.We have confirmed the presence of the

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On Almost Projective Modules

In this note, we investigate the relationship between almost projective CLA (Conjugated Linoleic Acid) modules and generalized projective modules.These concepts are useful for the study on the finite direct sum of lifting modules.It is proved that; if M is generalized N-projective for any modules M and N, then M is almost N-projective.We also show

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The Host-Plant Origin Affects the Morphological Traits and the Reproductive Behavior of the Aphid Parasitoid Aphelinus mali

Diversifying agroecosystems through habitat management inside or outside production fields can provide alternative hosts and/or prey for natural enemies.In semi-natural habitats, parasitoids may find alternative host-plant complexes (HPC) that could allow their development when pest hosts are scarce in the field.However, morphological and physiolog

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