Now showing items 3695-3714 of 8867

• #### Impact of irreversible sorption on sediment quality ﻿

(2000)
Irreversible sorption has been widely observed for hydrophobic organic contaminants in natural sediments. It is a complicated process and impacts sediment quality and contaminated sediment management. In this research, ...
• #### Impact of lens aberrations and partial coherence on intra-field critical dimensions of dark gate lines ﻿

(1997)
Across-field variations of lens aberration and partial coherence can have undesirable effects on critical dimension (CD) uniformity and depth of focus (DOF) of printed patterns. The principal objective of this work is to ...
• #### Impact of Sunlight and Natural Organic Matter on the Fate, Transport, and Toxicity of Carbon Based Nanomaterials ﻿

(2013-09-16)
The fast growing production of carbon based nanomaterials (CNMs) and their potential widespread use in consumer products raise concerns regarding their potential risks to human health and ecosystems. The present study ...
• #### Impact of Surface Topography on Colloidal and Bacterial Adhesion ﻿

(2011)
Although the importance of substrate surface topography in colloidal and bacterial adhesion is widely recognized, how it affects the adhesion process has been a controversial topic. In this study, the impact of surface ...
• #### Impacts of unsaturated zone reaeration on the bioattenuation of organic contaminants in groundwater systems ﻿

(2000)
Reaeration, or the diffusion of O2 through the unsaturated zone and into an aquifer system, is a mechanism that influences the extent of hydrocarbon contaminant bioattenuation in ground water. A series of laboratory and ...
• #### Impedance Control Approaches for Series Elastic Actuators ﻿

(2015-09-22)
For applications requiring interaction with humans or unstructured environments, robots are increasingly designed to leverage the intentional drivetrain compliance of series elastic actuators (SEAs). Impedance control, ...
• #### Impedance spectroscopy response of aluminum-copper-silicon alloys ﻿

(1991)
The effect of increased Cu and Si additions and heat treatment on the polarization resistance, oxide-layer/double-layer capacitance, open circuit potential and breakdown potential of Al-Cu-Si alloys was evaluated. ...
• #### Impeded photo-oxidation of conducting polymer films using metal nanoshells ﻿

(2000)
Interest in the use of conducting polymers as the active layer in electroluminescent devices has grown steadily over the last decade, and the commercialization of such devices is imminent. The stumbling block to the ...
• #### Implement interface architecture ﻿

(2006)
Implement explores the productive relationships between an architecture of exchange and its connection to existing systems of environmental forces. Integrating organizational and developmental logics of embedded performativity ...
• #### Implementation and analysis of neuromodulatory mechanisms in a mathematical model of neuron R15 in Aplysia ﻿

(1994)
An existing model of the bursting neuron R15 in Aplysia has been modified to incorporate the effects of the neuromodulatory agents serotonin and dopamine upon the conductances of the subthreshold currents $I\sb{R}$ and ...
• #### Implementation and Analysis of Shared-Control Guidance Paradigms for Improved Robot-Mediated Training ﻿

(2011)
Many dynamic tasks have a clearly defined optimal trajectory or strategy for completion. Human operators may discover this strategy naturally through practice, but actively teaching it to them can increase their rate of ...
• #### Implementation issues of multiuser detection in CDMA communication systems ﻿

(1999)
Multistage detectors have been accepted in designs for next generation CDMA base stations because they are less complex than some other multiuser detectors. In this thesis, we propose a differencing method to further reduce ...
• #### Implementation of a wellhead protection program utilizing a geographic information system ﻿

(1992)
The purpose of this research was development of a geographic information system (GIS) and linkage with existing ground-water models to expedite wellhead protection area (WHPA) delineation within a wellhead protection (WHP) ...
• #### Implementation of Economic Sanctions ﻿

(2013-09-16)
This dissertation investigates implementation problems in economic sanctions and how a state's concerns about policy implementation affect its decisions and the outcomes of sanctions. This study builds on the premise that ...
• #### Implementation of Hot Electrons in Hybrid Antenna-Graphene Structures ﻿

(2013-09-16)
Graphene, a one-atom-thick sheet of hexagonally packed carbon atoms, is a novel material with high electron mobility due to its unique linear and gapless electronic band structure. Its broadband absorption and unusual ...
• #### Implementation of HSE second order derivatives ﻿

(2009)
The implementation of analytic second order derivatives for the Heyd-Scuseria-Ernzerhof (HSE) Density Functional Theory method in the Gaussian code allows the calculation of experimentally important properties such as ...
• #### Implementation of multiple-corrections and presolve enhancement in the interior-point linear programming code LIPSOL ﻿

(1999)
Multiple correction was introduced by Gondzio (5) to accelerate the convergence of iterates generated by primal-dual interior-point algorithms for linear programming. In this work, we implement the multiple correction ...
• #### Implementation of New Strategies in Multidimensional Compressive Imaging ﻿

(2014-02-19)
Since 2004, compressive sensing (CS) has attracted considerable attentions due to its virtue of being able to reconstruct a signal when being sampled at sub-Nyquist rate. Building on the mathematical breakthroughs of CS, ...
• #### Implementation of SEMPA using a high efficiency retarding-potential Mott polarimeter ﻿

(1999)
Scanning Electron Microscopy with Polarization Analysis (SEMPA) provides a novel tool with which to image surface magnetic structure. In SEMPA, a tightly focussed electron beam is directed at the sample surface and the ...
• #### Implementation of techniques for background reduction in low-energy gamma ray telescopes ﻿

(1995)
Prometheus I, a low-energy ($\sim$0.06-12.0 MeV), balloon-borne gamma ray telescope has been developed and successfully flown. It consists of a central NaI(Tl) detector that is segmented into an array of 9 x 9 crystals and ...