Results 21 to 30 of about 22,422,719 (302)

Ray Trace Tomographic Velocity Analysis of Surface Seismic Reflection Data [PDF]

open access: yes, 1988
Recent development of two technologies allows application of a generalized formulation of travel time inversion to very large data sets, such as the surface reflection surveys collected for oil exploration.
Stork, Christof
core   +1 more source

Direct Inversion Method of Brittleness Parameters Based on Reweighted Lp-Norm

open access: yesApplied Sciences, 2022
Brittleness is an important factor that indicates shale properties, as well as fracturability, and it can be well-represented using the elasticity parameter Eρ. Seismic inversion allows direct access to the Eρ ofbrittleness parameters.
Yaojie Chen   +4 more
doaj   +1 more source

The effect of inversion at 8p23 on BLK association with lupus in Caucasian population. [PDF]

open access: yesPLoS ONE, 2014
UNLABELLED:To explore the potential influence of the polymorphic 8p23.1 inversion on known autoimmune susceptibility risk at or near BLK locus, we validated a new bioinformatics method that utilizes SNP data to enable accurate, high-throughput genotyping
Bahram Namjou   +9 more
doaj   +1 more source

Use of Assimilation Analysis in 4D-Var Source Inversion: Observing System Simulation Experiments (OSSEs) with GOSAT Methane and Hemispheric CMAQ

open access: yesAtmosphere, 2023
We previously introduced the parametric variance Kalman filter (PvKF) assimilation as a cost-efficient system to estimate the dynamics of methane analysis concentrations.
Sina Voshtani   +3 more
doaj   +1 more source

Image source detection for geoacoustic inversion by Teager-Kaiser energy operator [PDF]

open access: yes, 2014
This letter presents an improvement of the image source method (ISM) for geoacoustic inversion. The new algorithm is based on the Teager-Kaiser Energy Operator which ampli es the discontinuities in signals while the soft transitions are reduced.
DRIRA, Achraf   +5 more
core   +1 more source

AVO Detuning Effect Analysis Based on Sparse Inversion

open access: yesEnergies, 2022
The wave field characteristics of thin reservoirs are extremely complex due to the tuning and interference between the top and bottom interfaces of the reservoirs, which leads to large uncertainty in thin layer AVO (Amplitude Versus Offset) analysis.
Shiyou Liu   +5 more
doaj   +1 more source

Nonlinear analysis of a class of inversion-based compliant cross-spring pivots [PDF]

open access: yes, 2022
This article presents a nonlinear model of an inversion-based generalized cross-spring pivot (IG-CSP) using the beam constraint model (BCM), which can be employed for the geometric error analysis and the characteristic analysis of an inversion-based ...
Li, Shiyao   +4 more
core   +1 more source

A note on the Smarandache inversion sequence [PDF]

open access: yes, 2007
In a recent paper, Muneer introduced the Smarandache inversion sequence. In this paper, we study some properties of the Smarandache inversion sequence. Moreover, we find the necessary and su±cient condition such that [SI(n)]2 + [SI(n + 1)]2 is a perfect
Majumdar, A.A.K.
core   +1 more source

Research on children abuse in Lithuania and its importance for prevention of juvenile crime [PDF]

open access: yesTemida, 2005
The main goal of this paper is to present an overview of children victims’ situation in Lithuania and to reveal possible forms and effects of inversion of victim - child and offender.
Rokas Uscila
doaj   +1 more source

Pine Forest Height Inversion Using Single-Pass X-Band Pol-InSAR Data [PDF]

open access: yes, 2007
International audienceA sparse pine forest is investigated at X-band on a single-pass polarimetric synthetic aperture radar interferometry (PolInSAR) data set using HH and HV channels.
Dubois-Fernandez, Pascale C.   +4 more
core   +1 more source

Home - About - Disclaimer - Privacy