4D Flow Patterns and Relative Pressure Distribution in a Left Ventricle Model by Shake-the-Box and Proper Orthogonal Decomposition Analysis

Purpose: Intraventricular blood flow dynamics are associated with cardiac function. Accurate, noninvasive, and easy assessments of hemodynamic quantities (such as velocity, vortex, and pressure) could be an important addition to the clinical diagnosis and treatment of heart diseases. However, the complex time-varying flow brings many...

Echo planar imaging–induced errors in intracardiac 4D flow MRI quantification

Purpose: To assess errors associated with EPI-accelerated intracardiac 4D flow MRI (4DEPI) with EPI factor 5, compared with non-EPI gradient echo (4DGRE). Methods: Three 3T MRI experiments were performed comparing 4DEPI to 4DGRE: steady flow through straight tubes, pulsatile flow in a left-ventricle phantom, and intracardiac flow in 10...

Hypersonic nozzle for laser-spectroscopy studies at 17 K characterized by resonance-ionization-spectroscopy-based flow mapping

The in-gas-jet laser spectroscopy method relies on the production of uniform and low-temperature gas jets to fully resolve the atomic hyperfine structure and efficiently determine fundamental nuclear properties of short-lived isotopes from, e.g., the hardly accessible actinide and transactinide elements. In this article we present the studies...

4-D Echo-Particle Image Velocimetry in a Left Ventricular Phantom

Left ventricular (LV) blood flow is an inherently complex time-varying 3-D phenomenon, where 2-D quantification often ignores the effect of out-of-plane motion. In this study, we describe high frame rate 4-D echocardiographic particle image velocimetry (echo-PIV) using a prototype matrix transesophageal transducer and a dynamic LV phantom for...

Residential demand response of thermostatically controlled loads using batch Reinforcement Learning

Driven by recent advances in batch Reinforcement Learning (RL), this paper contributes to the application of batch RL to demand response. In contrast to conventional model-based approaches, batch RL techniques do not require a system identification step, making them more suitable for a large-scale implementation. This paper extends fitted Q...

The Question of Metropolitan Form: An Introduction

Reinventing architectural monumentality / De herontdekking van de monumentaliteit in de architectuur

De stad als architectonische constructie: Het architectonisch discours van de stad (Duitsland 1871-1914)

The city as an architectural construction: The architectural discours on the city At the turn of the 19th to the 20th century a paradigm shift took place within German architectural thinking that can be identified as a turn to the city. Whereas throughout the 19th century architectural knowledge was primarily directed to questions of style of...

Architecture of the representative and civil public spheres: The rise, fall and rebirth of German civic art / Architectuur van de representatieve en burgerlijke openbaarheid: opkomst, ondergang en wedergeboorte van de Duitse stadsbouwkunst

In memoriam Runcorn

Quiet objectivity: The reception of the Classical tradition in German architecture, 1890-1920 / Zakelijke eenvoud: de receptie van de klassieke traditie in de Duitse architectuur, 1890-1920

On the separation of 99mTcO4-, 99mTc-DTPA and 99mTc-citrate as marker species for the determination of Tc chemical forms in plant material using capillary zone electrophoresis

The present paper addresses the potential use of capillary zone electrophoresis (CZE) as an analytical tool in 99- technetium speciation studies. In order to optimise sampling, storage and analytical procedures, the three marker compounds 99mTcO4-, 99mTc-DTPA and 99mTc-citrate were synthesised and used in test-measurements with CZE. The results...

Programma-Evaluatie bij Innovatie van een Ingenieursopleiding, Program Evaluation in Innovating an Engineering Curriculum