نتایج جستجو برای: elastic torsion

تعداد نتایج: 88477  

Journal: :TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A 1989

Journal: :Applied mechanics 2022

Free vibration analysis of prestressed, homogenous, Fiber-Metal Laminated (FML) and composite beams subjected to axial force end moment is revisited. Finite Element Method (FEM) frequency-dependent Dynamic (DFE) models are developed presented. The frequency results compared with those obtained from the conventional FEM (ANSYS, Canonsburg, PA, USA) as well Homogenization (HM). Unlike FEM, applic...

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].

Journal: :acta medica iranica 0
hossein baradaran department of surgery, sina hospital, school of medicine, tehran university of medical sciences, tehran, iran. mohsen fadaei-araghi department of surgery, sina hospital, school of medicine, tehran university of medical sciences, tehran, iran. arash matin department of surgery, sina hospital, school of medicine, tehran university of medical sciences, tehran, iran. behnam shakiba department of surgery, sina hospital, school of medicine, tehran university of medical sciences, tehran, iran.

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...

2005
Frank E. Rademakers Walter J. Rogers Myron L. Weisfeldt

Background. Efficient early diastolic filling is essential for normal cardiac function. Diastolic suction, as evidenced by a decreasing left ventricular pressure during early filling, could result from restoring forces (the release of potential energy stored during systolic deformation) dependent on myofilament relaxation. Although these restoring forces have been envisioned within individual m...

Journal: :Journal of The Mechanics and Physics of Solids 2023

Micromorphic theories became an established tool to model size effects in materials like dispersion, localization phenomena or (apparently) dependent properties. However, the formulation of adequate constitutive relations with its large number and respective parameters hinders usage full micromorphic theory, which has 18 already isotropic linear elastic case. Although it is clear that these are...

Journal: :Materials research proceedings 2023

Abstract. In this work an alternative beam finite element for rapid time-domain flutter analysis of wings equipped with trailing edge control surfaces, generally distributed along the span, is presented. The aeroelastic proposed based on Euler-Bernoulli theory, De St. Venant torsion theory and two-dimensional unsteady aerodynamics. developed model attractive preliminary aero-servo-elastic analy...

Haleh Ayatollahi Leila Zarei, Tahereh Behrozi-lak

      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 ...

Ali Akbar Jafarian, Farnad Imani, Homa Mottaghi, Mohammad Reza Al-e-bouyeh, Peyman Rahmanizadeh,

 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...

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