Zobrazeno 1 - 10
of 33
pro vyhledávání: '"Jean Ji"'
Publikováno v:
SEG Technical Program Expanded Abstracts 2019.
Autor:
Jan T. Lowery, Lisen Axell, Lisa Ku, Emily B. Todd, Dave Kao, Nick Rafaels, Matt R.G. Taylor, Elizabeth Kudron, Stephen Wicks, Jean Jirikowic, Elise Shalowitz, Kristy R. Crooks
Publikováno v:
Genetics in Medicine Open, Vol 2, Iss , Pp 101852- (2024)
Purpose: To describe our process for returning genetic results to participants in the Colorado Center for Personalized Medicine biobank. Methods: Enrollment in the biobank is open to all adult UCHealth patients. Participants who provided a sample tha
Externí odkaz:
https://doaj.org/article/4b794e7f61ba4600b9ee104b5fdb9375
Early Introduction and Community Transmission of SARS-CoV-2 Omicron Variant, New York, New York, USA
Autor:
Dakai Liu, Yexiao Cheng, Hangyu Zhou, Lulan Wang, Roberto Hurtado Fiel, Yehudah Gruenstein, Jean Jingzi Luo, Vishnu Singh, Eric Konadu, Keither James, Calvin Lui, Pengcheng Gao, Carl Urban, Nishant Prasad, Sorana Segal-Maurer, Esther Wurzberger, Genhong Cheng, Aiping Wu, William Harry Rodgers
Publikováno v:
Emerging Infectious Diseases, Vol 29, Iss 2, Pp 371-380 (2023)
The Omicron variant of SARS-CoV-2 has become dominant in most countries and has raised significant global health concerns. As a global commerce center, New York, New York, USA, constantly faces the risk for multiple variant introductions of SARS-CoV-
Externí odkaz:
https://doaj.org/article/31ab17d81cfc401c8d54945e6918ee56
Publikováno v:
GEOPHYSICS. 74:WCA159-WCA166
Defining the correct velocity is critical for proper subsalt imaging. A subsalt velocity perturbation scan based on wave equation migration is an effective way to update subsalt velocity and has become a standard industry practice. A factor limiting
Publikováno v:
The Leading Edge. 28:442-447
Reverse time migration (RTM), being based on the two-way wave equation, can accurately account for wave propagation in both up and down directions. As a result, RTM can generate much improved subsurface images in areas where strong vertical velocity
Publikováno v:
SEG Technical Program Expanded Abstracts 2015.
We propose an adaptive approach to address the practical issues in least-squares reverse time migration (LSRTM) with a focus on subsalt imaging. The problems include imperfect migration velocity, slow convergence in subsalt area, and extra migration
Publikováno v:
SEG Technical Program Expanded Abstracts 2015.
The importance of de-ghosting cannot be overstated in the pursuit of a broad-band image, and an accurate estimation of the ghost delay time, explicitly, or implicitly, is critical for the de-ghosting process. We propose the uses of L2 or L1 norm of t
Publikováno v:
2014 Oceans - St. John's.
Accurate sea floor maps are needed for many applications, such as geological studies, coastal safety, navigation, and climate changes, but have only been produced recently by utilizing digital multibeam technology, remotely operated vehicles, or divi
Publikováno v:
SEG Technical Program Expanded Abstracts 2013.
Summary Joint Deconvolution is an effective tool to attenuate the receiver ghost and broadens the spectrum of the image. Though successful results have been reported for acquisitions using variable-depth streamers, great challenges still exist when i
Publikováno v:
SEG Technical Program Expanded Abstracts 2013.
The ultimate goal for seismic depth imaging is to find new hydrocarbon prospects or improve existing ones. High quality seismic data and an accurate velocity model are the main drivers for good imaging. Prospects may be identified on seismic data in