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Santa Barbara, CA, United States

Agassi Y.D.,U.S. Navy | Oates D.E.,Lincoln Laboratory | Moeckly B.H.,STI Inc.
Physica C: Superconductivity and its Applications | Year: 2012

Based on our measurements of intermodulation distortion in MgB 2, we have previously proposed that the π energy-gap in MgB 2 entails six nodal lines [Y.D. Agassi, D.E. Oates, and B.H. Moeckly, Phys. Rev. B 80 (2009) 174522]. Here we report high-precision measurements in MgB 2 stripline resonators that show an increase of the penetration depth as the temperature is decreased below 5 K. This increase is consistent with the ℓ = 6 symmetry of the π energy gap that we have proposed. We interpret the increase as a manifestation of Andreev surface-attached states that are associated with the nodal lines of the π energy gap. Penetration-depth calculations are in good agreement with our data. To reconcile the present interpretation with existing literature, we review other penetration-depth data, magnetic-impurity and tunneling experiments, and data on the paramagnetic Meissner effect. We conclude that these data do not rule out the interpretation of our experimental data based on a nodal π energy gap. © 2012 Elsevier B.V. All rights reserved. Source


Lee G.W.,Korea Electronics Technology Institute | Im S.,Korea Electronics Technology Institute | Kim E.K.,STI Inc.
Proceedings of the 28th International Symposium on Automation and Robotics in Construction, ISARC 2011 | Year: 2011

Nowadays, many safety accidents are occurring at construction sites. Excavation accidents that concern construction machines are among the leading safety hazards in construction accidents. Therefore, the need for excavation experts is increasing. In this paper, an excavator simulator is presented for training human operators and for tasking in virtual earthworks. In this system, the operator controls a virtual excavator in a control station with a joystick, pedals, a graphic display, and sound effects. Source


Sti

Trademark
Sti Inc | Date: 2012-06-18

Rubber, gutta-percha, asbestos, mica; padding made of rubber for shipping containers; foam rubber; asbestos fabrics; electrical insulating mica products; plastics in extruded form for use in manufacture; packing and insulating materials; rubber stoppers for industrial packaging containers; flexible pipes, not of metal.


Trademark
STI Inc. | Date: 2009-10-14

Electronic surveillance devices that are mobile, namely, electronic video surveillance installations, electronic audio surveillance installations, radar detectors, and license plate recognition systems comprising cameras and software therefore.


Trademark
STI Inc. | Date: 2011-10-25

Electronic surveillance devices that are mobile, namely, electronic video surveillance installations, electronic audio surveillance installations, radar detectors, and license plate recognition systems comprising cameras and software therefore.

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