Concept

Physical geodesy

Publications associées (11)

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Hypogravity modeling of upper extremities: an investigation of manual handling in the workplace

Tatiana Maillard

Experiments on the lower limbs are the only approaches being used to study how hypogravity (HG) (0 < g < 1, e.g., Moon: 1/6 g, Mars: 3/8 g) affects human movement. The goal of this study was to expand this field experimentally by investigating the effect o ...

Lausanne2023

Electrons leave the flatland: out-of-plane charge dynamics in layered materials

Edoardo Martino

The goal of this thesis is to explore the "neglected" third dimension of layered materials, by studying the interlayer charge dynamics through dc conductivity, optical spectroscopy and ab-initio calculations. This project was designed to respond to the gro ...

EPFL2020

The pipetting of small volumes, typically ranging between a few and one thousand microliters (mu l), is widely used in many laboratories and essentially relies on air displacement to aspirate and dispense the liquid contained in a small plastic tip. While ...

IOP PUBLISHING LTD2019

Full-wavefield modeling and reverse time migration of laser ultrasound data: A feasibility study

Thomas Emmanuel Blum

Laser ultrasound (LU) data acquired on cylindrical core samples effectively probe the physical properties of geologic materials. Although most LU analyses focus on estimating and inverting traveltimes of direct arrivals, it is important to recognize that L ...

2015

Observations, theory, and modeling of the differential accumulation of Antarctic megadunes

Michael Lehning

Antarctic megadunes are characterized by significant spatial differences in accumulation rate, with higher accumulation on the windward side and near-zero accumulation on the lee side. This leads to spatial differences in physical properties of snow and su ...

Amer Geophysical Union2013

In-flight Accuracy Estimation for Airborne Lidar Data

Yannick Stebler

One of the main problems of today’s Airborne Laser Scanning (ALS) systems is the lack of reliable data quality assessment within or shortly after the airborne survey campaign. This paper presents the development and implementation of a tool that allows com ...

Inst Navigation, 815 15Th Th St Nw, Ste 832, Washington, Dc 20005 Usa2009

A Two-Layered Anomaly Detection Technique Based on Multi-modal Flow Behavior Models

Jean-Yves Le Boudec

We present a novel technique to detect traffic anomalies based on network flow behavior in different traffic features. Based on the observation that a network has multiple behavior modes, we estimate the modes in each feature component and extract their mo ...

Springer Verlag2008

Accuracy Estimation for Laser Point Cloud Including Scanning Geometry

Jan Skaloud

Individual points produced by airborne laser scanning (ALS) may have large variation in their accuracy, a fact that is often omitted in the subsequent derivation of digital terrain models. The accuracy of a single point is governed by three main factors: F ...

2007

Gravity anomalies from airborne measurements - experiments using a low cost IMU device

Phillip Tomé, Telmo Cunha

The gravity field may be determined using different techniques, but airborne gravity surveying is becoming a powerful tool mainly due to its potential in remote areas. One of the main problems in airborne gravity is the separation of the vertical accelerat ...

2000

Position+Attitude from GPS+INS for RTK Airborne Sensoring

Phillip Tomé, Telmo Cunha

This is a presentation of the techniques used to process inertial and GPS data collected during an airborne gravimetric and altimetric survey in order to obtain absolute position and attitude estimates of the sensors mounted on board the aircraft. For high ...

1999