Sliding motion between two rough solids under light normal loading involves myriad micro-impacts antagonist micro-asperities. Those are at the origin of many emerging macroscopic phenomena, including friction force, slider's vibrations and noise radiated in surroundings. However, individual properties (e.g. maximum position along interface, duration) essentially elusive to measurement. Here, we...

Abstract. We investigate the NP -hard label number maximization problem (LNM): Given a set of rectangular labels Λ, each of which belongs to a point feature in the plane, the task is to find a labeling for a largest subset ΛP of Λ. A labeling is a placement such that none of the labels overlap and each λ ∈ ΛP is placed according to a labeling model: In the discrete models, the label must be pla...

Airflows between centrally clamped, rotating, rigid disks are investigated with respect to the type of flow pattern, the parameters that influence nonuniform flow, and the effects of various flow patterns on disk stability. The experimental method uses a waterflow modeling technique for the airflow. The observed flow patterns are highly unsteady. The configuration and position of the shroud and...

This paper presents the results of 2D-finite-element simulations of the periodic change in capacitance between two periodic structures, one sliding and one fixed (i.e. sense-structure). These structures are potentially interesting for long-range and high-accuracy position detection of microactuators. The use of periodic geometries and the combination of a discrete (incremental) and analog measu...

Red-eared slider turtles are genetically bipotential for sex determination, with incubation temperature of the egg determining gonadal sex. At higher incubation temperatures, females are produced, possibly due to increased biosynthesis of estrogen. Exogenous estrogen causes the formation of ovaries, and prevention of estrogen biosynthesis results in the development of testes. In mammals, steroi...

The inability to vocally match a pitch can be caused by poor pitch perception or by poor vocal-motor control. Although previous studies have tried to examine the relationship between pitch perception and vocal production, they have failed to control for the timbre of the target to be matched. In the present study, we compare pitch-matching accuracy with an unfamiliar instrument (the slider) and...

Today’s interfaces for time-scaled audio replay have limitations especially regarding highly interactive tasks such as skimming and searching, which require quick temporary speed changes. Motivated by this shortcoming, we introduce a new interaction technique for speech skimming based on the so called rubberband metaphor. We propose an “elastic” audio slider which is especially useful for tempo...

The main goal of this work is to develop a comprehensive methodology for predicting wear in planar mechanical systems with multiple clearance joints and investigating the interaction between joint clearance, driving condition, wear. In process, an effective contact surface discretization method together Lagrangian are used establish dynamic equation multibody system. Considering change surface,...

We propose an interaction technique for manipulating precise data or selecting one element from a large number of items. Although conventional graphical interaction tools like sliders cannot be used for selecting more items than the pixel size of the slider, we can specify more precise data by using the elastic slider based on the rubber-band metaphor, where a control object can be moved by pul...

The heteroleptic six-component double slider-on-deck system DS3 exhibits tight coupling of motional speed two distinct nano-circular sliders (k298 = 77 and 41 kHz) despite a 2.2 nm sepa­ration. In comparison, the single in DS1 DS2 move at vastly diffe­rent 1.1 vs. 350 kHz). Synchro­nization motions remains even when one slows movement faster slider using small molecular brake pads. contrast to ...