Recent Advances in Structural Mechanics/H00731: Presented at the Winter Annual Meeting of the American Society of Mechanical Engineers, Atlanta, Georgia, December 1-6, 1991
Recent Advances in Structural Mechanics, 1994: Presented at 1994 International Mechanical Engineering Congress and Exposition, Chicago, Illinois, November 6-11, 1994
Recent Advances in Solids and Structures: 1999 International Mechanical Engineering Congress and Exposition, Nashville, Tennessee, November 14-18, 1999
Orest G. Symko - Salt Lake City UT, US Young S. Kwon - Salt Lake City UT, US
Assignee:
University of Utah Research Foundation - Salt Lake City UT
International Classification:
H02N 2/18
US Classification:
310339, 310328, 310334, 322 2 R
Abstract:
A thermoacoustic array energy converter consists of heat driven thermoacoustic prime movers in parallel coupled by means of an acoustic cavity to a piezoelectric electrical generator whose output is rectified and fed to an energy storage element. The prime movers convert heat to sound in a resonator. The sound form a phase-locked array is converted to electricity by means of the piezoelectric element. The generated electric energy is converted to DC by means of a rectifier set and it is then stored in a battery or supercapacitor. The generated electric energy can also be converted to power line frequency.
Orest G. Symko - Salt Lake City UT, US Young S. Kwon - Salt Lake City UT, US
Assignee:
University of Utah Research Foundation - Salt Lake City UT
International Classification:
H02N 2/18
US Classification:
310339, 310334
Abstract:
A thermoacoustic array energy converter consists of heat driven thermoacoustic prime movers in parallel coupled by means of an acoustic cavity to a piezoelectric electrical generator whose output is rectified and fed to an energy storage element. The prime movers convert heat to sound in a resonator. The sound form a phase-locked array is converted to electricity by means of the piezoelectric element. The generated electric energy is converted to DC by means of a rectifier set and it is then stored in a battery or supercapacitor. The generated electric energy can also be converted to power line frequency.
System And Method For Iteration Scheduling In Joint Equalization And Turbo Decoding
Christian Schlegel - Park City UT, US Yajun Kou - San Diego CA, US Tao Wu - Carlsbad CA, US Young Hoon Kwon - San Diego CA, US
Assignee:
FutureWei Technologies, Inc. - Plano TX
International Classification:
H04B 1/10
US Classification:
375341
Abstract:
A system and method for iteration scheduling in joint equalization and turbo decoding are provided. A method for processing received information includes cancelling interference in a received signal bearing received information, decoding the interference cancelled received signal to produce information, and processing the received information. The cancelling comprises an iterative processing of the received signal based on soft information produced by a decoding the received signal.
System And Method For Signaling And Detecting In Wireless Communications Systems
Christian Schlegel - Park City UT, US Tao Wu - Carlsbad CA, US Yajun Kou - San Diego CA, US Young Hoon Kwon - San Diego CA, US
Assignee:
FutureWei Technologies, Inc. - Plano TX
International Classification:
H04L 27/06 H04L 27/01
US Classification:
375229, 375340, 375341
Abstract:
A system and method for signaling and detecting in wireless communications systems are provided. A method for processing information includes operating in a first phase, and operating in a second phase in response to determining that a first user is transmitting at a substantially higher power level than a second user, and processing the detected information. The first phase includes iteratively inverting a first filtering operation on received signals, and the second phase includes iteratively inverting a second filtering operation on received signals with consideration given to a first estimation error of symbols of the first user and a second estimation error of symbols of the second user. The operating remains in the first phase in response to determining that the first user is not transmitting at a substantially higher power level than the second user.
Integrated Circuit Package Design Having An Intermediate Die-Attach Substrate Bonded To A Leadframe
Young I. Kwon - San Jose CA Louis H. Liang - Los Altos CA
Assignee:
VLSI Technology, Inc. - San Jose CA
International Classification:
H05K 502
US Classification:
361813
Abstract:
A package design configuration for an integrated-circuit die includes a leadframe having its bonding fingers connected to the periphery of an electrically-insulated, heat-conductive substrate, formed, for example, of a ceramic material. A number of electrically conductive traces, or bonding islands, serve as intermediate bonding locations for shorter bonding wires connecting bonding pads on the integrated-circuit die to the bonding fingers of the leadframe. The conductive traces serving as bonding islands are formed by deposition of thin-film material using semiconductor fabrication techniques or by deposition of thick-film material using printing techniques. Various shapes and configurations of the conductive traces are available, such as elongated rectangular patterns, or zigzag patterns. Alternatively, the electrically-insulated, heat-conductive ceramic substrate is attached to the die-attach pad of a conventional leadframe.
Jaime A. Bayan - Palo Alto CA Jeffrey C. Demmin - Palo Alto CA Mark L. DiOrio - Cupertino CA Young I. Kwon - Santa Clara CA
Assignee:
National Semiconductor Corp. - Santa Clara CA
International Classification:
H01L 2334 H01L 2336 H01L 2312
US Classification:
357 70
Abstract:
A thermally enhanced leadframe having heat conductive paths which thermally couple a die attach pad to thermal connection points spread out as far as possible from each other on the perimeter of the package. The area of the heat conductive path is maximized to occupy substantially all area in the package not occupied by the electrically conductive paths between the wire bond locations and the external connection points such as pins. This configuration maximizes the area of the printed circuit board which is heated thereby increasing thermal cooling efficiency. Further, the leadframe configuration maximizes the area of contact between the integrated circuit package and the heat conductive path thereby increasing the thermal conductivity between the device junctions on the integrated circuit die and the ambient through the material of the package itself.
This is a high quality zirconium or hafnium sponge, a fuel element cladding liner having material of the quality of this sponge and a process utilizing this quality sponge to fabricate liner material for lined fuel element cladding. The sponge contains 250-about 350 ppm of oxygen impurity, 50-300 ppm of iron impurity, and a total of 500-1,000 ppm of impurity. This material is much purer than conventional sponge and approaches the quality of crystal bar.
Young Kwon - San Jose CA Jon Ewanich - Los Altos CA Bill Gervasi - Los Gatos CA Paul Franklin - Santa Cruz CA
Assignee:
S3 Incorporated - Santa Clara CA
International Classification:
H01R 1200
US Classification:
439 69
Abstract:
An arrangement for coupling a first packaged integrated circuit to a second packaged integrated circuit comprises a first packaged integrated circuit that includes a first set of electrical interconnection elements arranged on a first surface and a second set of electrical interconnection elements arranged on a second surface which is opposite to the first side. A thermally conductive material is disposed on the second surface and the second set of electrical interconnection elements are arranged around at least a portion of the periphery of the second surface. A second packaged integrated circuit includes a third set of electrical interconnection elements arranged on a first surface of the second packaged integrated circuit. The third set of electrical interconnection elements are shaped to mechanically and electrically couple and decouple to or from the second set of electrical interconnection elements non-destructively by application of manual force.
Fractures, Dislocations, Derangement, and Sprains Lateral Epicondylitis Rotator Cuff Syndrome and Allied Disorders Internal Derangement of Knee Cartilage Intervertebral Disc Degeneration
Languages:
English Spanish
Description:
Dr. Kwon graduated from the Northwestern University Feinberg School of Medicine in 1997. He works in New York, NY and 1 other location and specializes in Orthopaedic Surgery and Orthopedic Sports Medicine. Dr. Kwon is affiliated with NYU Hospital For Joint Diseases and NYU Langone Medical Center.