by Sunwoong Lee Submitted to the Department of Mechanical Engineering on May 5, 2006, in partial fulfillment of the requirements for the degree of Doctor of Philosophy in Mechanical Engineering Methods are developed for passive source localization and environmental parameter estimation in seismo-acoustic waveguides by exploiting the dispersive behavior of guided wave propagation. The methods de...

Recent Digital Surface, Elevation, and Bathymetric Models (DSM/DEM/DBM) aim to provide high-resolution accurate height depth information needed for a variety of surveying, geodetic, geophysical, other applications. In this study, first we validate in two test areas some the most used models, i.e., ASTER GDEM; AW3D30 DSM; Copernicus DEM; EU-DEM; GEBCO 2020; NASADEM HGT; SRTM15+ SRTM Global, usin...

background: ovarian immature teratoma is a very rare type of tumor associated with a high relapse rate and mortality. correspondingly, early diagnosis is important for effective treatment. the goal of this study was to retrospectively analyze the ultrasound characteristics of 11 cases of immature teratomas. materials and methods: between january 2002 and december 2010, 11 patients were diagnose...

This paper explores the potential of ground-penetrating radar (GPR) monitoring for an advanced understanding snow cover processes and structure. For this purpose, study uses Hansbreen (SW Spitsbergen) records that are among longest most comprehensive snow-cover GPR available on Svalbard. While depth (HS) is frequently only feature derived from high-frequency radio-echo sounding (RES), also offe...

A sounding subband allocation algorithm is proposed for a proportional fair (PF) scheduler in an OFDMA=FDD uplink. The proposed sounding algorithm tries to provide a PF scheduler with more proper channel state information of multiple users by using an estimated PF metric. It is shown that the proposed sounding subband allocation algorithm enables the PF scheduler to achieve the throughput gain ...

The submarine volcano 8.10, part of the South Iturup group underwater volcanoes Kuril island arc (KIA), was studied using a proven technology quantitative interpretation hydromagnetic survey materials in combination with echo sounding, continuous seismoacoustic profiling, and analysis petromagnetic properties chemical composition dredged rocks. makes it possible to interpret directly from origi...