Searched for:
(1 - 19 of 19)
document
Quiros Solano, W.F. (author)
Drug development is a complex, time-consuming (10 - 15 years) and expensive process. For a new medicine to reach the market, the net expenses covered by the pharmaceutical industry have been estimated to be around $2.6 billion. Nevertheless, the risk of finding adverse effects or toxicity cases once the drug is already on the market is still...
doctoral thesis 2019
document
Farhadi Machekposhti, D. (author)
Classical human-engineered transmission mechanisms such as linkages, gears, and couplings are well established designs which made out of multiple parts and rigid hinges. However, these mechanisms impose disadvantages such as wear, friction, low precision and reliability, need for assembly and lubrications, and difficulty for miniaturization. By...
doctoral thesis 2018
document
Basak, S. (author)
With the focus in automobile industry to switch from petroleum-based vehicles to all electric vehicles, the increasing demand on harvesting energy from renewable sources for a safer and greener future and the ever-increasing demand of the portable electronics systems, the need for better batteries is eminent. The ultimate aim of battery research...
doctoral thesis 2017
document
Buja, F. (author)
This thesis aims to provide the latest progresses on the experimental investigation of friction and adhesion phenomena, occurring at the nanoscale in microelectromechanical systems (MEMS). I have studied and characterized the interaction between MEMS sidewalls in contact and sliding one onto another. Ultrananocrystalline diamond (UNCD) and...
doctoral thesis 2015
document
Morana, B. (author)
doctoral thesis 2015
document
Van Leeuwen, R. (author)
In this thesis the physics of nanoscale mechanical resonators and oscillators is studied. We discuss two types of resonators. First, a top-down fabricated doubly clamped beam resonator with an integrated piezoelectric actuator is introduced. The second type of resonators are based on layered two-dimensional materials, such as graphene and...
doctoral thesis 2015
document
Perez Garza, H.H. (author)
Properties of matter at the nano-scale may be very different from the ones observed at the macro-scale. The continuous variation of characteristics with diminishing size results in relevant changes in behavior. Similarly, these changes are caused by the rise of completely new phenomena (i.e. quantum confinement). Nanoscience can offer an...
doctoral thesis 2015
document
Ye, H. (author)
Solid-State Lighting (SSL), powered by Light-Emitting Diodes (LEDs), is an energy-efficient technology for lighting systems. In contrast to incandescent lights which obtain high efficiency at high temperatures, the highest efficiency of LEDs is reached at low temperatures. The thermal management in LED product is then a key design parameter as...
doctoral thesis 2014
document
Gaitas, A. (author)
This dissertation aims to advance the current state of cantilevers with integrated metal thermal and deflection sensing elements. Metallic sensing elements enable the use of alternative substrate materials (such as polymers), that tend to exhibit higher compliance properties and are more robust (less brittle) compared to Si or Si3N4 cantilevers....
doctoral thesis 2013
document
Tian, J. (author)
The current trend in electronic packaging research is to integrate more functions into one package, reduce electrical path parasitic, and increase the heat conduction in order to make the final packaged system smaller, more reliable, more functional and more complete, while keeping the packaging cost low. In this trend, unconventional devices ...
doctoral thesis 2013
document
Westra, H.J.R. (author)
In this Thesis, nonlinear dynamics and nonlinear interactions are studied from a micromechanical point of view. Single and doubly clamped beams are used as model systems where nonlinearity plays an important role. The nonlinearity also gives rise to rich dynamic behavior with phenomena like bifurcations, stochastic switching and amplitude...
doctoral thesis 2012
document
Zaal, J.J.M. (author)
The world has seen an unrivaled spread of semiconductor technology into virtually any part of society. The main enablers of this semiconductor rush are the decreasing feature size and the constantly decreasing costs of semiconductors. The decreasing costs of semiconductors in general are caused by the smaller feature size, the higher yield and...
doctoral thesis 2012
document
Yang, C.K. (author)
This thesis studies the effects of scaling on the characterisation and readout of micro-electro mechanical systems (MEMS) to nano-electro mechanical systems (NEMS). In particular it focuses on cantilever, which is a basic device building block and an important transducer in many sensing applications. This thesis presents an overview of major...
doctoral thesis 2012
document
Shen, C. (author)
In this thesis we described a new approach to design, fabricate, package and test three silicon based porous vertical structures for nanoparticle separations. These vertical structures stand in between two microfluidic channels. In these walls nano channels that connect the two adjacent microchannels are embedded. Fluid and small particles can...
doctoral thesis 2011
document
Mihailovic, M. (author)
This thesis explores the employment of monocrystalline silicon in microsystems as an active material for different thermal functions, such as heat generation and heat transfer by conduction. In chapter 1 applications that need thermal micro devices, micro heaters and micro heat exchangers, are briefly introduced. The shortcomings of commonly...
doctoral thesis 2011
document
Hannot, S.D.A. (author)
Microsystems are very small sensors and actuators, manufactured with the same technology as computer chips. Well known applications of these machines are the acceleration sensors in the Wii game console and the iPhone. At the micrometer length scales of microsystems the physical forces behave different when compared to devices operating in the...
doctoral thesis 2010
document
Wei, J. (author)
High-precision manipulation of small-size objects is an attractive and challenging topic for both industrial production and fundamental scientific research. The capability of monitoring micro-samples during handling is essential to the accuracy and efficiency of a handling system for both liquid and solid samples. When handling liquid samples...
doctoral thesis 2010
document
Paalvast, S.L. (author)
The primary goal of this research was to study the feasibility of a thermal micro actuator for improved tracking performance of a Hard Disk Drive (HDD), and the feasibility of thermal actuation for precision micro motion and positioning in general. The fast dynamics of the micro actuator allows it to quickly correct position errors and thus...
doctoral thesis 2010
document
Gurav, S.P. (author)
doctoral thesis 2005
Searched for:
(1 - 19 of 19)