Design-oriented analysis has become increasingly important as more and more problems traditionally solved in isolation are being approached from a multidisciplinary point of view. One such problem is the aeroelastic optimization of supersonic transport wings. Whereas simplified analytical techniques may not be sophisticated enough, and complex numerical models may be too cumbersome, this paper ...

Torsion theories are here extended to categories equipped with an ideal of 'null morphisms', or equivalently a full subcategory of 'null objects'. Instances of this extension include closure operators viewed as generalised torsion theories in a 'category of pairs', and factorization systems viewed as torsion theories in a category of morphisms. The first point has essentially been treated in [15].

wandering spleen, defined as a spleen without its usual peritoneal attachments, is a rare entity. we report a 34-year-old woman with acute abdomen due to torsion of the long vascular pedicle of a wandering spleen, displaced in the abdominal cavity, and infarction of the spleen. wandering spleen was diagnosed by ultrasound and computed tomography (ct) scan, and was managed by splenectomy in this...

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This paper presents the development of a mixed-variable optimization framework for the aeroelastic analysis and design of active twist rotors. Proper tailoring of the blade properties can lead to the maximization of the active twist and the control authority for vibration reduction under operating conditions. Thus, using mathematical optimization, the crosssectional layout is designed using con...

The study presents two novel approaches for gust response analysis of elastic free aircraft configuration using computational fluid dynamics (CFD) tools. The direct approach involves full aeroelastic dynamic simulation within a CFD run. The hybrid approach involves computing rigid sharp-edge gust responses in a CFD run, evaluating the gust input forces due to arbitrary gust profiles via convolu...

      Ovarian torsion (adnexal torsion) is an uncommon disorder in pediatrics and should be considered as a differential diagnosis of abdominal pain in preteen girls. Almost 70% of ovarian torsions are seen in young girls older than 20 years, but it could also occur in preteen girls. Sonography is one of the most useful methods to diagnose ovarian torsion. In pediatrics, ovarian torsion should ...

 Abstract  Testicular torsion is a medical emergency appearing at any age, the prevalence of  which in the neonatal period comprises 10% of the whole cases occurring at any  point in life. Among all the cases being diagnosed at birth, 70% has occurred in the  prenatal period and 30% in the neonatal period. Generally, the most common symptoms  of testicular torsion during postnatal period includ...

abstract  testicular torsion is a medical emergency appearing at any age, the prevalence of  which in the neonatal period comprises 10% of the whole cases occurring at any  point in life. among all the cases being diagnosed at birth, 70% has occurred in the  prenatal period and 30% in the neonatal period. generally, the most common symptoms  of testicular torsion during postnatal period include...

Aircraft winglets are well-established devices that improve aircraft fuel efficiency by enabling a higher lift over drag ratios and lower induced drag. Retrofitting to existing also increases payload/range the same order of burn savings, although additional loads moments imparted wing may impact structural interfaces, adding more weight wing. Winglet installation on influences numerous design p...