STRANDS are thin elastic solids that are visually well approximated as smooth curves, and yet possess essential physical behaviors characteristic of solid objects such as twisting. Common examples in computer graphics include: sutures, catheters, and tendons in surgical simulation; hairs, ropes, and vegetation in animation. Physical models based on spring meshes or 3D finite elements for such t...

Chiral materials are not invariant to inversions: there is a distinction between rightand left-handed material. Material properties such as piezoelectricity and pyroelectricity, represented by tensors of odd rank, can only occur in chiral materials. Chiral e!ects in elasticity cannot be expressed within classical elasticity since the modulus tensor, which is fourth rank, is unchanged under an i...

هدف: تحلیل گفتمان‌های پیرامون جانشین­‌پروری در یک دستگاه دولتی.طراحی/ روش­‌شناسی/ رویکرد: تحقیق حاضر به لحاظ رویکرد، کیفی؛ روش نمونه­‌گیری، هدفمند و جمع­‌آوری داده­‌ها عمدتا مصاحبه نیمه ساختاریافته با 13 نفر از مدیران مورد مطالعه بوده است. داده‌­ها، گفتمان انتقادی بهره‌­گیری الگوی فرکلاف طی سه مرحله توصیف، تفسیر تبیین انجام یافته است.یافته‌­های پژوهش: مهم­ترین یافته­‌های بخش استخراج 416 کد مثبت...

The theory of Cosserat elasticity (also known as micropolar or asymmetric elasticity) was introduced by Cosserat brothers [1] and further developed by Eringen [2] to model the mechanical behavior of materials for which the microstructure is significant (see [3] for a review of works in this area and an extensive bibliography). The theory was intended to eliminate discrepancies between the class...

Abstract We discuss a model of fibrous solids composed three families continuously distributed Kirchhoff rods embedded in matrix material. This is special case Cosserat elasticity which the basic kinematic descriptors are single deformation field and rotation fields, one for each fiber family. The fibers assumed to convect with underlying continuum as material curves. Various kinds internal con...