Proficient in Adobe Premier • Final Cut Studio • Pro Tools • Logic Pro • Photoshop • Illustrator • DVD Studio Pro • Movie Magic • Celtx • Reason & Ableton Live.
Languages
English
Specialities
Dentistry
Us Patents
High Power, Broadband Folded Waveguide Gyrotron-Traveling-Wave-Amplifier
Carter M. Armstrong - Kildeer IL Jin J. Choi - North Potomac MD Achintya K. Ganguly - Alexandria VA
Assignee:
The United States of America as represented by the Secretary of the Navy - Washington DC
International Classification:
H01J 2534 H01S 100
US Classification:
330 4
Abstract:
A folded waveguide gyrotron-traveling-wave-amplifier comprises: an electron gun for transmitting an axis-encircling beam of electrons with large transverse energy along a first path having an axis; an RF source for producing and applying in a second path an RF input millimeter wave signal having a bandwidth in a preselected frequency domain and having a transverse electric field; a source for generating a solenoid magnetic field parallel to the axis along the first path; a beam collector; and an interaction circuit such as an H-plane bend serpentine waveguide positioned within the solenoid magnetic field and having a narrow wall containing a beam tunnel hole for passing the axis-encircling beam of electrons therethrough to the beam collector, an output end, and an input end for receiving and passing the RF input millimeter wave signal through the H-plane bend serpentine waveguide to the output end to modulate the axis-encircling electron beam, the modulated axis-encircling electron beam amplifying the RF input signal and also broadening the instantaneous bandwidth of the amplified RF input signal through the negative mass instability in the fundamental forward space harmonic of both fast and slow wave regions in the preselected frequency domain. In a second embodiment, a double-ridged TE folded waveguide is used in place of the H-plane bend serpentine waveguide. In a third embodiment, there is no RF input signal and the interaction circuit generates an RF signal which is outputted from one of the input and output ends.
Medicine Doctors
Dr. Jin H Choi, Aurora IL - DDS (Doctor of Dental Surgery)
Dr. Choi graduated from the New York University School of Medicine in 1995. She works in Brooklyn, NY and specializes in Internal Medicine. Dr. Choi is affiliated with VA New York Harbor Healthcare System Brooklyn Campus.
Medical School Yonsei Univ, Coll of Med, Sudai Moon Ku, Seoul, So Korea Graduated: 1964
Languages:
English Spanish
Description:
Dr. Choi graduated from the Yonsei Univ, Coll of Med, Sudai Moon Ku, Seoul, So Korea in 1964. He works in Columbus, OH and specializes in Anesthesiology. Dr. Choi is affiliated with Mount Carmel East Hospital.
2010 to 2000 DirectorStructurePoint Skokie, IL 2009 to 2010 Marketing CoordinatorFourword Movement Chicago, IL 2006 to 2009 Creative Director | Managing PartnerAutobarn Volkwagen Mount Prospect, IL 2007 to 2008 E-Business ManagerArlington Toyota & Scion Buffalo Grove, IL 2006 to 2007 Internet Sales Manager | Business ManagerGrossinger Volvo Lincolnwood, IL 2005 to 2006 Director for Internet Sales for Chicagoland Volvo, Toyota, and Volkswagen franchisesGroove Distribution Chicago, IL 2004 to 2005 Accounts Manager
Education:
DePaul University Chicago, IL 2010 BA in Digital Cinema
Skills:
Proficient in Adobe Premier, Final Cut Studio, Pro Tools, Logic Pro, Photoshop, Illustrator, DVD Studio Pro, Movie Magic, Celtx, Reason & Ableton Live.
"We expect the decision to be unanimous and the Board to retain the wording 'maintain a restrictive policy stance for a sufficiently long period of time' in its forward guidance," HSBC economist, Jin Choi wrote in a client note.
Date: Jan 08, 2024
Category: Business
Source: Google
17-year-old amateur threatening to shock US Women's Open
After parring her first 17 holes, Feng birdied the par-5 18th to take a one-shot lead over Amy Yang who had two runner-up finishes, a third and a fourth in her past five Opens and 17-year-old amateur Hye-Jin Choi from South Korea, both of whom are 8-under.
Date: Jul 15, 2017
Category: Sports
Source: Google
Storytime: US Women's Open finale full of plot lines
Amy Yang (70) and 17-year-old amateur Hye-Jin Choi (70) are one shot back. Choi is trying to become just the second amateur to win the U.S. Womens Open. Frances Catherine LaCoste was the first to win it 50 years ago.
Date: Jul 15, 2017
Category: Sports
Source: Google
Hartford celebrates one of its own in Travelers lead
Seong beat Thailands Chakansim (Fai) Khamborn, 5 and 4, in the morning in the round of 32 at Rolling Green, and topped fellow South Korean player Hye-Jin Choi, 6 and 5, in the afternoon round of 16.
Date: Aug 04, 2016
Category: Sports
Source: Google
Defending champ Seong, Lee reach US Girls' Junior final
The 17-year-old Lee, from Hermosa Beach, California, beat Waverly Whiston of San Diego 4 and 3 in the quarterfinals and edged co-qualifying medalist Hye-Jin Choi of South Korea 1 up in the semifinals. Lee won the 17th and 18th with birdies to top Choi.
Co-qualifying medalist Hye-Jin Choi of South Korea also advanced, routing Megan Furtney of South Elgin, Illinois, 7 and 6, and topping Thailand's Paphangkorn Tavatanakit, 2 up. Choi will face Taiwan's Ya Chun Chang, a 6-and-5 winner over Lucy Li of Redwood Shores, California.
Nearly a year ago, on 1 December, the then head of the UN peacekeeping mission, Young-Jin Choi, had a private one-hour discussion Mr Gbagbo and warned him of the consequences if he refused to accept the outcome of presidential election held three days earlier.
Date: Nov 30, 2011
Category: World
Source: Google
UN forces target Gbagbo loyalists in the Ivory Coast
N. Special Representative Young-Jin Choi said pro-Gbagbo forces were shelling the Golf hotel in Abidjan, where the country's internationally recognized president Alassane Ouattara is staying, and "today they began to shell our quarters" as well. The United Nations decided to enter into action, he sa