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Spain Gazing: Postcolonial Aspirations, Neocolonial Systems And Postponed Reckonings - Queries From The Margins, Francisco Valdes
Spain Gazing: Postcolonial Aspirations, Neocolonial Systems And Postponed Reckonings - Queries From The Margins, Francisco Valdes
Articles
No abstract provided.
High-Resolution Slant-Angle Scene Generation And Validation Of Concealed Targets In Dirsig, Kris E. Barcomb, John Schott, Scott D. Brown, Timothy J. Hattenberger
High-Resolution Slant-Angle Scene Generation And Validation Of Concealed Targets In Dirsig, Kris E. Barcomb, John Schott, Scott D. Brown, Timothy J. Hattenberger
Articles
Traditionally, synthetic imagery has been constructed to simulate images captured with low resolution, nadirviewing sensors. Advances in sensor design have driven a need to simulate scenes not only at higher resolutions but also from oblique view angles. The primary efforts of this research include: real image capture, scene construction and modeling, and validation of the synthetic imagery in the reflective portion of the spectrum. High resolution imagery was collected of an area named MicroScene at the Rochester Institute of Technology using the Chester F. Carlson Center for Imaging Science’s MISI and WASP sensors using an oblique view angle. Three Humvees, …
Surface And Buried Landmine Scene Generation And Validation Using The Digital Imaging And Remote Sensing Image Generation Model, Erin D. Peterson, Scott D. Brown, Timothy J. Hattenberger, John R. Schott
Surface And Buried Landmine Scene Generation And Validation Using The Digital Imaging And Remote Sensing Image Generation Model, Erin D. Peterson, Scott D. Brown, Timothy J. Hattenberger, John R. Schott
Articles
Detection and neutralization of surface-laid and buried landmines has been a slow and dangerous endeavor for military forces and humanitarian organizations throughout the world. In an effort to make the process faster and safer, scientists have begun to exploit the ever-evolving passive electro-optical realm, both from a broadband perspective and a multi or hyperspectral perspective. Carried with this exploitation is the development of mine detection algorithms that take advantage of spectral features exhibited by mine targets, only available in a multi or hyperspectral data set. Difficulty in algorithm development arises from a lack of robust data, which is needed to …
Structural Characterisation Of A Sol-Gel Copolymer Synthesised From Aliphatic And Aromatic Alkoxysilanes Using 29si-Nmr Spectroscopy, Mohamed Oubaha, M. Dubois, B. Murphy, P. Etienne
Structural Characterisation Of A Sol-Gel Copolymer Synthesised From Aliphatic And Aromatic Alkoxysilanes Using 29si-Nmr Spectroscopy, Mohamed Oubaha, M. Dubois, B. Murphy, P. Etienne
Articles
A hybrid organic-inorganic material was prepared from the hydrolytic co-condensation of 3- trimethoxysilylpropylmethacrylate (MAPTMS) and diphenyldiethoxysilane (DPHDES). The synthesis was performed in three steps: (1) MAPTMS pre-hydrolysis, (2) addition of DPHDES, and (3) further hydrolysis of the obtained mixture. 29 Si nuclear magnetic resonance spectroscopy was used to characterise the structural evolution of the mineral network during the synthesis. It revealed the catalytic effect of DPHDES on the condensation reaction of silanol groups, initially observed for pre-hydrolysed MAPTMS. In addition, it was clearly demonstrated that the formation of the highest condensed species of the aromatic oligomers (D2 species) occurred …
A Novel Brdf Measurement Technique With Spatial Resolution-Dependent Spectral Variance, James Ii Shell, Carl Salvaggio, John Schott
A Novel Brdf Measurement Technique With Spatial Resolution-Dependent Spectral Variance, James Ii Shell, Carl Salvaggio, John Schott
Articles
Overhead spectral imaging has enabled a variety of quantitative remote sensing techniques. However, the derived surface reflectance upon which these techniques rely is generally directional and dependent upon the incident solar and receiving detector angles. The bidirectional reflectance distribution function (BRDF) is becoming increasingly important with the development of non-nadir, multi-angle systems. A BRDF measurement approach in the visible to near infrared is described which is suitable for field use. An imaging technique measures BRDF but also enables the generation of the BRDF variability, or the bidirectional reflectance variance function (BRVF). From the measurements, the BRVF and spectral correlation statistics …
Image Quality Analysis Of A Spectra-Radiometric Sparse-Aperture Model, Noah R. Block, Robert Introne, John R. Schott
Image Quality Analysis Of A Spectra-Radiometric Sparse-Aperture Model, Noah R. Block, Robert Introne, John R. Schott
Articles
Sparse aperture (SA) telescopes represent a promising technology to increase the effective diameter of an optical system while reducing overall weight and stowable size. Although conceptually explored in the literature for decades, the technology has only recently matured to the point of being reasonably considered for certain applications. In general, a sparse aperture system consists of an array of sub-apertures that are phased to synthesize a larger effective aperture. The models used to date to create predictions of sparse aperture imagery typically make use of a “gray world” assumption, where the input is a resampled black and white panchromatic image. …
On The Dressing Method For The Generalised Zakharov-Shabat System, Rossen Ivanov
On The Dressing Method For The Generalised Zakharov-Shabat System, Rossen Ivanov
Articles
The dressing procedure for the Generalised Zakharov-Shabat system is well known for systems, related to sl(N) algebras. We extend the method, constructing explicitly the dressing factors for some systems, related to orthogonal and symplectic Lie algebras. We consider ’dressed’ fundamental analytical solutions with simple poles at the prescribed eigenvalue points and obtain the corresponding Lax potentials, representing the soliton solutions for some important nonlinear evolution equations.
Fuzzy Control With Random Delays Using Invariant Cones And Its Application To Control Of Energy Processes In Microelectromechanical Motion Devices, A. Sinha, Sergey Lyshevski
Fuzzy Control With Random Delays Using Invariant Cones And Its Application To Control Of Energy Processes In Microelectromechanical Motion Devices, A. Sinha, Sergey Lyshevski
Articles
In this paper, a class of microelectromechanical systems described by nonlinear differential equations with random delays is examined. Robust fuzzy controllers are designed to control the energy conversion processes with the ultimate objective to guarantee optimal achievable performance. The fuzzy rule base used consists of a collection of r fuzzy IF-THEN rules defined as a function of the conditional variable. The method of the theory of cones and Lyapunov functionals is used to design a class of local fuzzy control laws. A verifiably sufficient condition for stochastic stability of fuzzy stochastic microelectromechanical systems is given. As an example, we have …
Temporal Variations In The Apparent Emissivity Of Various Materials, Carl Salvaggio, David P. Miller
Temporal Variations In The Apparent Emissivity Of Various Materials, Carl Salvaggio, David P. Miller
Articles
Spectral emissivity measurements gathered in the longwave infrared region of the spectrum during a recent airborne hyperspectral data collection experiment indicated that the spectral emissivity of certain organic polymers changed by as much as 10% throughout the day. Inorganic and many other organic materials that were measured at the same time during this experiment showed no change. As this was an unexpected event, a subsequent experiment was designed to make emissivity measurements of several organic and inorganic materials over a 24-hour period/diurnal cycle. The results from this experiment confirmed that certain materials showed a significant spectral emissivity variation over this …
Comparison Of Basis-Vector Selection Methods For Target And Background Subspaces As Applied To Subpixel Target Detection, Peter Bajorski, Emmett J. Ientilucci, John Schott
Comparison Of Basis-Vector Selection Methods For Target And Background Subspaces As Applied To Subpixel Target Detection, Peter Bajorski, Emmett J. Ientilucci, John Schott
Articles
This paper focuses on comparing three basis-vector selection techniques as applied to target detection in hyperspectral imagery. The basis-vector selection methods tested were the singular value decomposition (SVD), pixel purity index (PPI), and a newly developed approach called the maximum distance (MaxD) method. Target spaces were created using an illumination invariant technique, while the background space was generated from AVIRIS hyperspectral imagery. All three selection techniques were applied (in various combinations) to target as well as background spaces so as to generate dimensionally-reduced subspaces. Both target and background subspaces were described by linear subspace models (i.e., structured models). Generated basis …
Identification And Detection Of Gaseous Effluents From Hyperspectral Imagery Using Invariant Algorithms, Erin M. O'Donnell, David W. Messinger, Carl Salvaggio, John Schott
Identification And Detection Of Gaseous Effluents From Hyperspectral Imagery Using Invariant Algorithms, Erin M. O'Donnell, David W. Messinger, Carl Salvaggio, John Schott
Articles
The ability to detect and identify effluent gases is, and will continue to be, of great importance. This would not only aid in the regulation of pollutants but also in treaty enforcement and monitoring the production of weapons. Considering these applications, finding a way to remotely investigate a gaseous emission is highly desirable. This research utilizes hyperspectral imagery in the infrared region of the electromagnetic spectrum to evaluate an invariant method of detecting and identifying gases within a scene. The image is evaluated on a pixel-by-pixel basis and is studied at the subpixel level. A library of target gas spectra …
A New High Power Parallel Converter Scheme For Active Power Filters, Malabika Basu, S. P. Das, Gopal Dubey
A New High Power Parallel Converter Scheme For Active Power Filters, Malabika Basu, S. P. Das, Gopal Dubey
Articles
A new topology for efficient utilisation of parallel converters as VAR compensators and active power filters (APF) for high power loads is proposed. Because of limited power handling capacity of individual devices, paralleling is the choice to increase rating of equipment, while keeping the THD of the current at the PCC within the agency specified standards. It has been reported in the literature that paralleling several converters, rather than switches, is more reliable in sharing of load. From this perspective, multilevel converters carry lot of weight, as their typical power circuit configuration limits the stress on individual devices to an …
They Don't Really Want To Know Us: Experiences And Perceptions Of International Students At The Technological University Dublin, Almut Schlepper
They Don't Really Want To Know Us: Experiences And Perceptions Of International Students At The Technological University Dublin, Almut Schlepper
Articles
This paper seeks to explore the experiences and perceptions of international, non-EU students at the Technological University Dublin. My interest in the subject derives from my work as a lecturer at a college with an increasing number of international students and from my participation as a student on a course which made me appreciate the value of a diverse student and lecturer body. The sample of the survey I carried out included international students and lecturers at one campus of the Technological University Dublin. While the results indicated that international students are just as heterogeneous as Irish students, they are …
Approaching The Numerical Aperture Of Water - Immersion Lithography At 193nm, Bruce W. Smith, Anatoly Bourov, Yongfa Fan, Lena V. Zayvalova, Neal Vincent Lafferty, Frank Charles Cropanese
Approaching The Numerical Aperture Of Water - Immersion Lithography At 193nm, Bruce W. Smith, Anatoly Bourov, Yongfa Fan, Lena V. Zayvalova, Neal Vincent Lafferty, Frank Charles Cropanese
Articles
As immersion nanolithography gains acceptance for next generation device applications, experimental data becomes increasingly important. The behavior of resist materials, fluids, coatings, sources, and optical components in the presence of a water immersion media presents conditions unique compared to convention “dry” lithography. Several groups have initiated fundamental studies into the imaging, fluids, contamination, and integration issues involved with water immersion lithography at 193nm. This paper will present the status and results of the next stage of the development efforts carried out at RIT. The status of two systems are presented; a small field projection microstepper utilizing a 1.05 catadioptric immersion …
Investigation Of The Diffusion Processes In Self-Processing Acrylamide-Based Photopolymer System, Izabela Naydenova, Raghavendra Jallapuram, Robert Howard, Suzanne Martin, Vincent Toal
Investigation Of The Diffusion Processes In Self-Processing Acrylamide-Based Photopolymer System, Izabela Naydenova, Raghavendra Jallapuram, Robert Howard, Suzanne Martin, Vincent Toal
Articles
Results from the investigation of the diffusion processes in a dry acrylamide-based photopolymer system are presented. The investigation is carried out in the context of experimental work on optimization of the high spatial frequency response of the photopolymer. Tracing the transmission holographic grating dynamics at short times of exposure is utilized to measure diffusion coefficients. The results reveal that two different diffusion processes contribute with opposite sign to the refractive index modulation responsible for the diffraction grating build up. Monomer diffusion from dark to bright fringe areas increases the refractive index modulation. It is characterized with diffusion constant D0=1.6E-7 cm2/s. …
A Vocalisation-Based Drawing Interface For Disabled Children, Ted Burke
A Vocalisation-Based Drawing Interface For Disabled Children, Ted Burke
Articles
In our work with disabled children at Ireland’s National Rehabilitation Hospital, a problem we have experienced in the facilitation of art activities is that traditional art materials and standard computer drawing programs sometimes prove inaccessible. In this paper, an original system, called “PaintMyVoice” is presented which facilitates the creation of two or three-dimensional images using a variety of novel input modalities. In particular, vocalisations can be used to create original images of a variety of objects, including trees, flowers and landscape elements. Additional input to the system can optionally be provided via mouse, keyboard, switch interface or digital camera depending …
A System For Monitoring Pressures And Spinal Curvature In Spinally Injured People Immobilised On A Spinal Raft, Ruairí De Fréin, Eoin Flinn, Ted Burke
A System For Monitoring Pressures And Spinal Curvature In Spinally Injured People Immobilised On A Spinal Raft, Ruairí De Fréin, Eoin Flinn, Ted Burke
Articles
We present a system designed to study the pressure at various ‘hot spots’ on the back of the body and the deformation of the spine experienced by a patient when strapped to a spinal board, and the potential alleviation of both by the addition of an inflatable “spinal raft” (or other similar device). In measuring pressure we devised a system of air-filled sacks interfaced with a PC. Each sack, placed under a particular key point on the body, is inflated until its faces just begin to separate and a switch thereby opens. The pressure reading is then captured and displayed …
The Organisation For Economic Cooperation And Development, Richard Woodward
The Organisation For Economic Cooperation And Development, Richard Woodward
Articles
This article reviews the role of the OECD, a much cited but little studied institution, in global governance.
Rules, Principles, And The Accounting Crisis In The United States, William Wilson Bratton
Rules, Principles, And The Accounting Crisis In The United States, William Wilson Bratton
Articles
The Sarbanes-Oxley Act and the Securities Exchange Commission move too quickly when they prod the Financial Accounting Standards Board, the standard setter for US GAAP, to move immediately to a principles-based system. Priorities respecting reform of corporate reporting in the US need to be ordered more carefully. Incentive problems impairing audit performance should be solved first through institutional reform insulating the audit from the negative impact of rent-seeking and solving adverse selection problems otherwise affecting audit practice. So long as auditor independence and management incentives respecting accounting treatments remain suspect, the US reporting system holds out no actor plausibly positioned …
Cosmology With Interacting Dark Energy, Manasse Mbonye
Cosmology With Interacting Dark Energy, Manasse Mbonye
Articles
The early cosmic inflation, when taken along with the recent observations that the universe is currently dominated by a low density vacuum energy, leads to at least two potential problems which modern cosmology must address. First, there is the old cosmological constant problem, with a new twist: the coincidence problem. Secondly, cosmology still lacks a model to predict the observed current cosmic acceleration and to determine whether or not there is a future exit out of this state (as previously in the inflationary case). This constitutes (what is called here) a dynamical problem. In this article a framework is proposed …
Performance Analysis Of Improved Methodology For Incorporation Of Spatial/Spectral Variability In Synthetic Hyperspectral Imagery, Neil W. Scanlan, John Schott, Scott D. Brown
Performance Analysis Of Improved Methodology For Incorporation Of Spatial/Spectral Variability In Synthetic Hyperspectral Imagery, Neil W. Scanlan, John Schott, Scott D. Brown
Articles
Synthetic imagery has traditionally been used to support sensor design by enabling design engineers to pre-evaluate image products during the design and development stages. Increasingly exploitation analysts are looking to synthetic imagery as a way to develop and test exploitation algorithms before image data are available from new sensors. Even when sensors are available, synthetic imagery can significantly aid in algorithm development by providing a wide range of "ground truthed" images with varying illumination, atmospheric, viewing and scene conditions. One limitation of synthetic data is that the background variability is often too bland. It does not exhibit the spatial and …
Monolithically Integrated Si/Sige Resonant Interband Tunnel Diode/Cmos Demonstrating Low Voltage Mobile Operation, S. Sudirgo, R.P. Nandgaonkar, B. Curanovic
Monolithically Integrated Si/Sige Resonant Interband Tunnel Diode/Cmos Demonstrating Low Voltage Mobile Operation, S. Sudirgo, R.P. Nandgaonkar, B. Curanovic
Articles
The first demonstration of the monolithic integration of CMOS and Si/SiGe resonant interband tunnel diodes (RITD) with negative differential resistance (NDR) is reported in this paper. The Si/SiGe RITDs exhibited a peak-to-valley current ratio (PVCR) up to 2.8 and peak current density (Jp) of 0.26 kA/cm2 at room temperature. This study focused on the utilization of a pair of tunnel diodes connected in series to form a latch. Employing a FET to supply current into the latch, a RITD/NMOS monostable–bistable transition logic element (MOBILE) was realized. The latch exhibited a voltage swing of 84% at an applied supply voltage of …
Enhancing Both Network And User Performance For Netwoks Supporting Best Effort Traffic, Shanchieh Yang, Gustavo De Veciana
Enhancing Both Network And User Performance For Netwoks Supporting Best Effort Traffic, Shanchieh Yang, Gustavo De Veciana
Articles
With a view on improving user-perceived performance on networks supporting best effort flows, e.g., multimedia/ data file transfers, we propose a family of bandwidth allocation criteria that depends on the residual work of on-going transfers. Analysis and simulations show that allocating bandwidth in this fashion can significantly improve the user-perceived delay, bit transmission delay, and throughput over traditional approaches, e.g., by 58% on an 80% loaded linear network. A simple implementation based on TCP Reno, exemplifies how one might approach practically realizing such gains. We discuss several other advantages of incorporating such differentiation at the transport level. In particular we …
The Reflective Practitioner: Critical Theory And The Professionalisation Of Pr, Tom Clonan
The Reflective Practitioner: Critical Theory And The Professionalisation Of Pr, Tom Clonan
Articles
The Reflective Practitioner: Critical Theory and the Professionalisation of PR Abstract The purpose of this article is to outline the relevance that critical theory has for the practice of public relations and the professional formation of its practitioners. The article provides an overview of one of the key theoretical perspectives articulated in the political economy approach to communication - that of the relationship between powerful elites in society and media professionals. The author seeks to explore the hypothesised relationships said to exist between power brokers in society and the 'organs of cultural production' - with particular emphasis on media relations. …
Technology In A War Crimes Tribunal: Recent Experience At The Icty, David Pimentel
Technology In A War Crimes Tribunal: Recent Experience At The Icty, David Pimentel
Articles
No abstract provided.
Imagineering Cities: Creating Liveable Urban Futures In The 21st Century, John Ratcliffe, Elzbieta Krawczyk
Imagineering Cities: Creating Liveable Urban Futures In The 21st Century, John Ratcliffe, Elzbieta Krawczyk
Articles
The 21st century is fast being recognised as the ‘century of cities’. More than half of the world’s population lives in cities now, and the importance of efficient urban land use and ‘smart’ development has become ever greater over recent decades. Cities are the key centres of human activity and the engines of economic growth in the world today. A world which has been drastically transformed by rapid technological change, expanding globalisation, profound cultural shifts and new economic perspectives. One, moreover, bring a whole range of fresh opportunities and challenges. Traditional ways in which cities were planned and managed increasingly …
The Effect Of The University Of Michigan Cases On Affirmative Action In Employment: Proceedings Of The 2004 Annual Meeting, Association Of American Law Schools, Section On Employment Discrimination Law, Labor Relations And Employment Law, And Minority Groups, Monique C. Lillard
Articles
No abstract provided.
The Constitutional Protection Of Trade Secrets Under The Takings Clause, Richard A. Epstein
The Constitutional Protection Of Trade Secrets Under The Takings Clause, Richard A. Epstein
Articles
No abstract provided.
Common Interest Tragedies, Lee Anne Fennell
Pragmatic Liberalism Versus Classical Liberalism (Reviewing Richard A. Epstein, Skepticism And Freedom: A Modern Case For Classical Liberalism (2003)), Richard A. Posner
Pragmatic Liberalism Versus Classical Liberalism (Reviewing Richard A. Epstein, Skepticism And Freedom: A Modern Case For Classical Liberalism (2003)), Richard A. Posner
Articles
No abstract provided.