Consider 2n points on the unit circle and a reference dissection D◦ of the convex hull of the odd points. The accordion complex of D◦ is the simplicial complex of non-crossing subsets of the diagonals with even endpoints that cross an accordion of the dissection D◦. In particular, this complex is an associahedron when D◦ is a triangulation and a Stokes complex when D◦ is a quadrangulation. In t...

Automobile components are subjected to high dynamic forces and vibrations under operational conditions which need detailed system analysis for work properly. Clutch is one of the important parts automobile powertrain with torque transmission controlling vibration damping properties. Metallic helical springs widely preferred within clutch discs their durable mechanic properties against variables...

The accordion phenomenon occurs because of mechanical distortion of a straightened vessel during coronary and vascular interventions. To date, however, this phenomenon has not been reported in vessels of the upper abdomen. We therefore describe the accordion phenomenon of the hepatic artery during transarterial chemoembolization seen while treating a liver tumor. As the accordion phenomenon is ...

The“Laptop Accordion”co-opts the commodity laptop computer to craft an expressive, whimsical accordion-like instrument. It utilizes the opening and closing of the laptop screen as a physical metaphor for accordion bellows, and the laptop keyboard as a musical buttonboard. Motion is tracked using the laptop camera via optical flow and mapped to continuous control over dynamics, while the sound i...

In recent years, destructive earthquakes have shown the deficiencies of the existing buildings. One of the most effective mechanisms for dissipating the earthquake energy is inelastic deformation of the steel components. The objective of this research is to study the application of metallic dampers for dissipation of the earthquake energy and to investigate the behavior of concrete structures i...

In recent years, destructive earthquakes have shown the deficiencies of the existing buildings. One of the most effective mechanisms for dissipating the earthquake energy is inelastic deformation of the steel components. The objective of this research is to study the application of metallic dampers for dissipation of the earthquake energy and to investigate the behavior of concrete structures i...

PURPOSE To examine laser damage to three commercially available devices used to prevent stone retropulsion during ureteroscopic lithotripsy. MATERIALS AND METHODS Two experiments were performed with five Accordion, Stone Cone, and NTrap devices each. All devices had a 7-mm outer diameter. The holmium:yttrium-aluminum-garnet laser was set at 8 watts. Experiment 1 was performed in an acrylic tu...

The report reflects the problems related to development of accordion pedagogy in Bulgaria at end XX century and chamber performing art. Reveals part pedagogical creative versatility Georgi Mitev / Assoc. Dr. AMTII "Prof. A. Diamandiev" - Plovdiv /, as head "club ensembles". Keywords: Accordion, Accordion Pedagogy, Arranging for Chamber Ensembles

In an article about the accordion effect Michael Bratman pointed out some difficulties in Joel Feinberg's original description of it, which he calls "language relativity". In this comment I do not contend any of Bratman's conclusions, but try to resolve the tension noted by Bratman. I believe that his analysis of Feinberg and Davidson is detrimental to the study of the accordion effect since th...