The purpose of introducing ultrasonic vibrations in the tube hydroforming process is to create more formability by obtaining a lower corner radius, improve thickness distribution of the wall and provide good tribological conditions at the tube and the die interface. Vibrations imposed on the die create alternating gaps which improve the formability in the tube hydroforming process in the presen...

The Front-End Electronics performing the ATLAS RPCs readout is a full custom 8 channels GaAs circuit, which integrates in a single die both the analog and digital signal processing. The die is bonded on the Front-End board which is completely closed inside the detector Faraday cage. About 50 000 FE boards are foreseen for the experiment. The complete functionality of the FE boards will be certi...

“The next activity we will do in today’s session is called the fantasy death exercise.” I look at the expectant faces in front of me. I always get a kick out of doing this exercise with medical students as it is a great immersion learning tool and fun to do. “The fantasy death exercise is sort of like guided imagery experience. Please close your eyes and keep them closed until I tell you to ope...

Evidence for a positive cosmological constant Λ, derived from the Lyα–forest in high–resolution spectra of quasars, leads to a closed, low–density, Λ-dominated universe. The analysis is based on the assumption of a universal shell structure expanding predominantly with the Hubble flow. Supporting evidence comes from two pairs of very wide absorption lines in the spectra of two quasars separated...

Fast High-Order Variation-Aware IC Interconnect Analysis. (August 2007) Xiaoji Ye, B.E., Wuhan University Chair of Advisory Committee: Dr. Peng Li Interconnects constitute a dominant source of circuit delay for modern chip designs. The variations of critical dimensions in modern VLSI technologies lead to variability in interconnect performance that must be fully accounted for in timing verifica...

let $s$ be a monoid. in this paper, we prove every class of $s$-acts having a flatness property is closed underdirected colimits, it extends some known results. furthermore thisresult implies that every $s$-act has a flatness cover if and only if it has a flatness precover.

In this paper, a new equidistant filling theory based on the level set function and corresponding numerical algorithm dynamic finite difference method were proposed. Firstly, closed curve is defined as zero-value contour of function. Then, equation, partial differential was built to get function, proposed solve Secondly, three types cross sections, simple polygon, multi-island multi-hole used t...

das thema „orient“ besch?ftigte schon lange vor der institutionalisierung der orientforschung und entstehung von orientalistikschulen die deutschsprachige kulturszene und wurde vor allem seit der zweiten h?lfte des 18. jahrhunderts mit einem ungeheuren illusorischen potenzial intensiver denn je in literarischen werken und ubersetzungen sowie in geistesgeschichtlichen debatten thematisiert. die ...