Some considerable damage to steel structures during the Hyogo-ken Nanbu Earthquake occurred. Among them, many exposed-type column bases failed in several consistent patterns, such as brittle base plate fracture, excessive bolt elongation, unexpected early bolt failure, and inferior construction work, etc. The lessons from these phenomena led to the need for improved understanding of column base...

tions yield two quartic polynomial constraints, gi(v) = 52() = 0, on the translational velocity, v, of the rigid body. We show that gi(v) and ?2(v) have, in general, exactly 16 distinct common zeros, and we show that, in general, ten of these common zeros yield values of v compatible with the 2D motion field. An alternative proof that there are ten values of v, based on the theory of ambiguous ...

tooth/implant supported fixed prostheses may present biomechanical design problems, as the implant is rigidly anchored within the alveolus, whereas the tooth is attached by the periodontal ligament to the bone allowing movement. many clinicians prefer tooth/implant supported fixed prosthesis designs with rigid connectors. however, there are some doubts about the effect of attachment placement i...

A cubic millimeter of primary visual cortex contains about 100,000 neurons that are heavily interconnected by intrinsic and extrinsic afferents. The effort of many neuroanatomists over the past has revealed the general outline of these connections; however, their function remains a mystery. Recently, combined physiological and anatomical approaches are beginning to reveal the role of these conn...

The inelastic response of beam-column connections significantly affects the seismic performances of steel frames. Accurate models of beam-column connections are important both in understanding the seismic behavior and in design. An effective approach towards developing accurate models for connections is self-learning simulation, which is presented in this paper. The latter simulation method has...

Let H be a Hopf algebra in a rigid braided monoidal category with split idempotents. We prove the existence of integrals on (in) H characterized by the universal property, employing results about Hopf modules, and show that their common target (source) object IntH is invertible. The fully braided version of Radford’s formula for the fourth power of the antipode is obtained. Connections of integ...

For a ring endomorphism α and an α-derivation δ, we introduce α-compatible ideals which are a generalization of α-rigid ideals and study the connections of the prime radical and the upper nil radical of R with the prime radical and the upper nil radical of the Ore extension R[x;α, δ] and the skew power series R[[x;α]]. As a consequence we obtain a generalization of Hong, Kwak and Rizvi, 2005.

Older infants suffer from tears at pontomedullary junction, petechial hemorrhages and cellular necrosis. By one year of age sutures are closed and skull becomes rigid. Glial cell proliferation, synaptic connections, and dendrites arborization progress logarithmically till two years of age. Myelinization begins at first year and progress till 10 year of life. Hence contusions, subarachnoid and e...

Geometric Algebra makes it possible to formulate simple spinor equations of motion for classical particles and rigid bodies. In the Newtonian case, these equations have proven their value by simplifying orbital computations. The relativistic case is not so well known, but it has new and surprising features worth exploiting, including close connections to quantum mechanical equations. The curren...