نتایج جستجو برای: shipborne gravimetry

تعداد نتایج: 891  

2016
Mattias T. Johnsson Gavin K. Brennen Jason Twamley

Precision measurements of gravity can provide tests of fundamental physics and are of broad practical interest for metrology. We propose a scheme for absolute gravimetry using a quantum magnetomechanical system consisting of a magnetically trapped superconducting resonator whose motion is controlled and measured by a nearby RF-SQUID or flux qubit. By driving the mechanical massive resonator to ...

2011

Advances in accelerometer technology promisemany orders ofmagnitude improvement in sensitivity; which, consequently, also suggest progress in Earth Science applications, such as through new airborne gravimetric systems. However, a new capability for one sensor then usually demands commensurate requirements from auxiliary sensors in order to realize its full potential. Specifically, airborne gra...

Journal: :Journal of Mathematical Sciences 2021

Several possible approaches for airborne vector gravimetry are compared using the spectral analysis technique. The equations reduced to a time-invariant form special averaging method. Then Fourier transform is applied equations. accuracy of each approach determined as power density gravity Wiener estimate error. Numerical results presented given priori stochastic models disturbance and measurem...

2002
Guenter W. Hein

Prof. Dr. Guenter W. Hein is Full Professor and Director of the Institute of Geodesy and Navigation at the University of Federal Armed Forces Munich. He is responsible for research and teaching in the field of highprecision GPS/GLONASS positioning, navigation physical geodesy, gravimetry and satellite geodesy. He works in the field of GPS since 1984 and is author of numerous papers on static an...

Journal: :International Association of Geodesy symposia 2023

Abstract The paper describes a new methodology for postprocessing raw data from strapdown airborne gravimeter based on navigation-grade inertial measuring unit and global navigation satellite system receivers (one is board the aircraft others are placed ground). key aspects of methodology’s algorithms outlined. We also present numerical results (gravity estimates) two gravimetry surveys. survey...

Journal: :Environmental Modelling and Software 2010
Marc Mestres Joan Pau Sierra César Mösso Agustín Sánchez-Arcilla

Most of the marine pollution attributable to ship actions is associated with the illicit discharge of oily residues or ballast water, in what is commonly termed operational pollution. In the particular case of ballast water, careless disposal can lead to severe ecological damage, including the irreversible establishment of communities of invasive species. In its 2004 Convention on ballast water...

2018
Alvarado Jahell Acosta Guillermo Perez Fatima

This article contains the dataset referring to the article "Study of the effect of the dispersion of functionalized nanoparticles TiO2 with photocatalytic activity in LDPE" (Jahell et al., 2016) [1]. It includes the FT-IR data of the functionalized nanoparticles of TiO2 with Hexadecyltrimethoxysilane in different degrees of functionalization, thermogravimetric analysis, distribution and particl...

2001

Several methods for checking the purity of nicotine used to calibrate analytical methods have been suggested since the 1920's. At that time the gravimetric method using picric acid was considered the most specific method while that employing tungstosilicic acid was considered most sensitive. However, neither method could be considered completely specific. Since the 1960's, the most commonly use...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید