Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 146 for “"lock-in"”.
-
Lock in
The following report details the formative experiences that led to the creation of the thesis film, Lock In. Each chapter reflects both a major film influence and a different stage in the filmmaking process.
-
False lock in sampled-data phase lock loops
The false lock characteristics of a sampled-data phase lock loop containing a phase detector with a sawtooth characteristic are investigated. The ideal processor of data operated on by such a phase detector nonlinearity is derived in open-loop form. A second system is proposed which is shown to …
-
El efecto lock-in de las hipotecas a tasa fija
En el presente trabajo se abordará el efecto lock-in, existente en el mercado inmobiliario y en particular para los poseedores de hipotecas a tasa fija. El análisis estará respaldado por un marco teórico, no sólo para modelar cambios en el mercado hipotecario, sino también para realizar ejercicios …
-
Intellectual property and architecture : how architecture influences intellectual property lock-in
Intellectual property lock-in is a wicked problem particularly pervasive under monopsony market structures, such as the Department of Defense (DoD). However, little research exists on the mechanisms of action that induce intellectual property lock-in. This work postulates the conjuncture of …
-
A Doppler Radar Lock-in Demodulation Algorithm for Machine Vibration Sensing
Data-driven predictive maintenance of modern machinery has the potential to increase equipment lifespan and decrease manufacturing costs. Among various condition monitoring techniques, vibration analysis can effectively diagnose potential problems in machines. Doppler radar can be used as a sensor …
-
INSTITUTIONAL LOCK-IN AND PRODUCER-CONTROLLED CROP RESEARCH CHECK-OFFS IN SASKATCHEWAN
Today, there are nine provincially legislated check-off programs in Saskatchewan. Check-off and research investment rates among these programs are typically low. Most check-off rates are below 0.5 per cent of the value of the underlying commodity and agency research expenditures as a percentage of …
-
Designing sustainable heavy lift launch vehicle architectures adaptability, lock-in, and system evolution
… exploration depends on the development of a sustainable heavy lift launch vehicle (HLLV). But what exactly is sustainability in the context of launch systems and how can it addressed in the design process? A HLLV must balance myriad technical and programmatic factors such as performance, …
-
A decision framework to mitigate vendor lock-in risks in cloud (SaaS category) migration.
Cloud computing offers an innovative business model to enterprise IT services consumption and delivery. However, vendor lock-in is recognised as being a major barrier to the adoption of cloud computing, due to lack of standardisation. So far, current solutions and efforts tackling the vendor …
-
XANES und MEXAFS an magnetischen Übergangsmetalloxiden : Entwicklung eines digitalen Lock-In-XMCD-Experiments mit Phasenschieber
In dieser Arbeit werden drei Lanthanmanganat-Systeme mittels SQUID-(Superconducting Quantum Interference Device) Magnetometrie und XMCD-(X-ray Magnetic Circular Dich-roism) Messungen an den jeweiligen Absorptionskanten (XANES: X-ray Absorption Near Edge Structure) sowie im kantenfernen Bereich …
-
Quantitative Carrier Transport in Quantum Dot Photovoltaic Solar Cells from Novel Photocarrier Radiometry and Lock-in Carrierography
Colloidal quantum dots (CQDs) are promising candidates for fabricating large-scale, low-cost, flexible, and lightweight photovoltaic solar cells. However, their power conversion efficiency is still insufficient for commercial applications, partly and significantly, due to the not-well-understood …
-
Forcing of globally unstable jets and flames
In the analysis of thermoacoustic systems, a flame is usually characterised by the way its heat release responds to acoustic forcing. This response depends on the hydrodynamic stability of the flame. Some flames, such as a premixed bunsen flame, are hydrodynamically globally stable. They respond …
-
Flame spectroscopic studies of bismuth, lanthanum, lead and silver with particular reference to their determination in steels.
… lead and silver and describes the determination of trace amounts of the four metals in steel after the preliminary solvent extraction of the metals. A study of the interference effects of the matrix elements upon both the extraction and determination of each metal is included. The thesis …
-
Vibration serviceability of special footbridges in South Africa: an investigation of the crowd capacity of the Boomslang canopy walkway
… of footbridges subjected to pedestrian loading has been an academic pursuit since the year 1850 (Fujino & Siringoringo, 2015). Initially, research was focussed on understanding the influence of pedestrian vertical loading on the dynamic behaviour of a footbridge. Furthermore, this loading …
-
Tax policy, housing markets, and elderly homeowners
This dissertation consists of three essays studying the impact of tax policy on housing markets and elderly homeowners. Chapter One examines the potential lock-in effect of capital gains taxation on home sales, using the Taxpayer Relief Act of 1997 (TRA97) as a policy instrument. Before 1997, …
-
Energy Harvesting from the Vortex-Induced Vibrations of Bluff Body Oscillators
<p>Vortex-induced vibration (VIV) of bluff bodies provides an effective mechanism for harvesting energy from fluid flows. Yet, the complex fluid-structure interactions governing vibration amplitude, synchronization, and energy transfer in single and coupled oscillators remain only partially …
-
Comparative performances of capital protection strategies in the South African market
… of cash protection strategies implemented in the South African market are investigated in order to establish if investors are able to add value through the use of dynamic portfolio insurance methods. The analysis is performed, using monthly data, from January 1961 to August 2014 using six …
-
ΜΕΛΕΤΗ ΣΥΣΤΗΜΑΤΩΝ ΕΛΕΓΧΟΥ ΣΤΡΟΦΩΝ ΚΙΝΗΤΗΡΩΝ ΣΥΝΕΧΟΥΣ ΡΕΥΜΑΤΟΣ ΜΕ ΤΗΝ ΑΡΧΗ ΤΟΥ ΒΡΟΧΟΥ ΣΥΓΧΡΟΝΙΣΜΟΥ ΦΑΣΗΣ (PLL)
… PRESENT THESIS IS A THEORETICAL AND EXPERIMENTAL INVESTIGATION OF THE APPLICATION OF THE PLL PRINCIPLE TO DC MOTOR SPEED CONTROL; SEPARATELY EXCITED ANDSERIES MOTORS ARE CONSIDERED. THESE SYSTEMS WHICH WILL BE REFERRED TO AS PLRS(PHASE LOCKED REGULATION SYSTEM) FIRSTLY APPEARED IN LATE 1960S BUT …
-
HOW TECHNOLOGY ADOPTION, HUMAN BEHAVIOR, AND COST EFFICIENCY INFLUENCE HOSPITAL TASK ALLOCATION: A RESOURCE-BASED VIEW AND TECHNOLOGICAL UNEMPLOYMENT PERSPECTIVE
Policy mandates and cost constraints, including reduced Medicare and Medicaid reimbursement levels, pressure hospitals to balance financial sustainability with delivering high-quality patient care. In response, hospitals are increasingly investing in Artificial Labor (AL) technologies to optimize …
-
Investigations on Vortex-induced Vibration (VIV) Phenomena of Single-and-double-cylinder Flexible Beam Arrangements of Energy Harvesters
… need for periodical replacement, energy-harvesting is an actual alternative as a power source for low power devices in some special areas. And among them, the piezoelectric energy-harvesting, which converts mechanical (vibration) into electric energy, is the fastest development one in recent …
-
The political discourse of globalisation: globalising tendencies as self-induced external enforcement mechanisms
I begin with a critical deconstruction of the conventional wisdom of globalisation. If the world does indeed resemble that depicted in the conventional wisdom, the claim that policy change is structurally determined at the economic level could well be sustainable. However, I show that globalisation …
Page 1 of 8