Simulating the Residual Layer Thickness in Roll-to-Plate Nanoimprinting with Tensioned Webs

Roll-to-plate nanoimprinting with flexible stamps is a fabrication method to pattern large-area substrates with micro- and nanotextures. The imprint consists of the preferred texture on top of a residual layer, of which the thickness and uniformity is critical for many applications. In this work, a numerical model is developed to predict the...

Continuous Subjective Rating of Perceived Motion Incongruence During Driving Simulation

Motion cueing algorithms are used in motion simulation to map the inertial vehicle motion onto the limited simulator motion space. This mapping causes mismatches between the unrestricted visual motion and the constrained inertial motion, which results in perceived motion incongruence (PMI). It is still largely unknown what exactly causes...

A Framework for Optimizing Simulation Model Validation & Verification

Thirty years of research on validation and verification have returned a plethora of methods and statistical techniques through methodological and case studies. It is, however, this abundance of methods and techniques that poses a major challenge. Due to time and budget constraints, it is impossible to apply all the available methods and...

Design, construction, and testing of a gasifier-specific solid oxide fuel cell system

This paper describes the steps involved in the design, construction, and testing of a gasifier-specific solid oxide fuel cell (SOFC) system. The design choices are based on reported thermodynamic simulation results for the entire gasifier- gas cleanup-SOFC system. The constructed SOFC system is tested and the measured parameters are compared...

Probabilistic downtime analysis for complex marine projects: Development of a modular Markov model that generates binary workability sequences for sequential marine operations

A complex marine project consist of series of operations, with each operation subject to a predefined operational limit and duration, depending on the equipment being used. If actual weather conditions exceed the operational limit, then the operation cannot be executed and hence downtime occurs. It is up to contractors, such as Boskalis, to...

A Framework for Simulation Validation & Verification Method Selection

Thirty years of research on validation and verification (V\&V) has returned a plethora of methods, statistical techniques, and reported case studies. It is that abundance of methods that poses a major challenge. Because of overlap between methods and time and budget constraints, it is impossible to apply all the available methods in a single...

Cost Effective Attitude Control Validation Test Methods for CubeSats Applied to PolarCube

The problem of testing the performance of an attitude control system presents new challenges and opportunities when conducted on a CubeSat scale. This is the result of drastic reduction in physical properties (size, mass, torques) as well as project resources (funds, manpower, time) when compared to traditional satellite programs. This thesis...

Evaluating transit preferential measures: Priority lanes, boarding and control strategies

Assessment of bus service improvements such as bus lanes, allowing boarding through all doors and headway-based holding control ideally requires a simulation model that combines features of both classical analytical models and microscopic simulation. However, as the usage of such models has been limited, their validity has hitherto remained low....

TEP-SIPE for Joint Impedance Identification: Experimental Evaluation

To allow for efficient and robust gait pattern, humans instantaneously modulate their joint impedance. Lower-limb amputees and patients suffering from neurological diseases partly lack that ability. Therefore, prosthetic and rehabilitative devices have been designed to re- store and repair nominal locomotion. For bio-inspired control of these...

Design, Simulation and Validation of Dual-channel Polarimetric Agile Radar Technology

In numerous radar applications, new problems concerning target detection in a clutter environment may occur. These problems cannot be solved using classical methods on the base of our current utilization of the reflection properties of various objects and their environment. Radar features that may assist in solving these problems are sought in...

Realising Transformation through Simulation: A universal indicator for transformation by using serious gaming

Municipalities in the Netherlands are required to improve the quality of the public services and become more accessible through the internet. Theory on transformation says that to acquire that goal these government organisations must transform their organisational structure to become more process and chain based. A lot of municipalities appear...

Simulation Fidelity Theory and Practice

Simulation fidelity is an intrinsic element of any simulation system, one that all its developers and users have to deal with one way or the other. It is commonly recognized by the modeling and simulation community that simulation fidelity is an essential vehicle in properly assessing the validity and credibility of simulation results....