Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

1999

Discipline
Institution
Keyword
Publication
Publication Type
File Type

Articles 6451 - 6480 of 9311

Full-Text Articles in Entire DC Network

Visual Determination Of Hue Suprathreshold Color-Difference Tolerances Using Crt-Generated Stimuli, Ethan Montag, Roy Berns Jan 1999

Visual Determination Of Hue Suprathreshold Color-Difference Tolerances Using Crt-Generated Stimuli, Ethan Montag, Roy Berns

Articles

Suprathreshold hue color-difference tolerances were measured at four color centers using CRT-generated stimuli. The tolerances, defined using CIELAB, were measured using two different methods of presentation. In the Absolute Experiment, the stimuli were presented at luminance levels that matched those of the previous object-color experiments, so that the CRT stimuli were nearly metameric to the originals. In the Relative Experiment, the white point of the monitor was defined as L* = 100 at a corresponding chromaticity to the object-color viewing environment, but at a lower luminance level. The results from these two experiments followed the same general trends; however, they …

Go to article

Hyperspectral Imaging: Wide-Area Spectrophotometry Using A Liquid-Crystal Tunable Filter, Robert Slawson, Zoran Ninkov, Elliott Horch Jan 1999

Hyperspectral Imaging: Wide-Area Spectrophotometry Using A Liquid-Crystal Tunable Filter, Robert Slawson, Zoran Ninkov, Elliott Horch

Articles

This paper reports on the use of a tunable, liquid-crystal filter to obtain simultaneous, low-resolution spectrophotometry of multiple stars within a moderately crowded field. The filter is electronically tunable to any wavelength in the range from 400 to 720 nm with a nominal passband of 10 nm FWHM. In order to evaluate the performance of this filter, the central region of the Jewel Box cluster, NGC 4755, was repeatedly imaged as the filter's central wavelength was stepped from 435 to 720 nm in successive exposures. A spectrum for each of five brighter stars in the cluster field was then reconstructed …

Go to article

The Use Of Color In Multidimensional Graphical Information Display, Ethan Montag Jan 1999

The Use Of Color In Multidimensional Graphical Information Display, Ethan Montag

Articles

This article may be accessed on the publisher's website (additional fees may apply) at: http://www.imaging.org/store/epub.cfm?abstrid=1226 It may also be accessed on the author's website (additional fees may apply) at: http://www.cis.rit.edu/people/faculty/montag/PDFs/paper43.pdf The performance in judging values in a univariate map encoded using five different color scales was tested in eleven subjects. Digital elevation maps (DEMs) were encoded using: 1) an RGB gray scale (RGB), 2) a gray scale based on CIELAB L* (L*), 3) a L* scale with an added red hue component (Red L*), 4) an L* scale with continuous hue change (Spectral L*), and 5) a gray scale based …

Go to article

End-To-End Color Printer Calibration By Total Least Squares Regression, Minghui Xia, Eli Saber, Gaurav Sharma Jan 1999

End-To-End Color Printer Calibration By Total Least Squares Regression, Minghui Xia, Eli Saber, Gaurav Sharma

Articles

Neugebauer (1937) modeling plays an important role in obtaining end-to-end device characterization profiles for halftone color printer calibration. This paper proposes total least square (TLS) regression methods to estimate the parameters of various Neugebauer models. Compared to the traditional least squares (LS) based methods, the TLS approach is physically more appropriate for the printer modeling problem because it accounts for errors in the measured reflectance of both the primaries and the modeled samples. A TLS method based on print measurements from single-colorant step-wedges is first developed. The method is then extended to incorporate multicolorant print measurements using an iterative algorithm. …

Go to article

Kubelka-Munk Theory And The Yule-Nielsen Effect On Halftones, Jonathan Arney, Eric Pray, Katsuya Ito Jan 1999

Kubelka-Munk Theory And The Yule-Nielsen Effect On Halftones, Jonathan Arney, Eric Pray, Katsuya Ito

Articles

This report experimentally relates the Yule–Nielsen n parameter for optical dot gain to the scattering and absorption parameters, S and K, of Kubelka–Munk theory. The relationship between the parameters is made through another metric of light scatter, kp, defined as the inverse of the frequency, ω in cy/mm, at which the MTF of the paper equals 1/2. The value of n is related exponentially to kp, as shown in earlier work, and the current work indicates that kp = c/S, where c is a constant equal approximately to 10. However, contrary to some intuition and to previous theoretical projections, the …

Go to article

Determining Optical Absorption Of Colored Dissolved Organic Matter In Seawater With A Liquid Capillary Waveguide, Enrico D’Sa, Robert Steward, Anthony Vodacek Jan 1999

Determining Optical Absorption Of Colored Dissolved Organic Matter In Seawater With A Liquid Capillary Waveguide, Enrico D’Sa, Robert Steward, Anthony Vodacek

Articles

Optical absorption spectra of 0.2- um filtered sea-water samples originating from diverse oceanic and coastal waters were measured with a long pathlength capillary wave-guide; results were compared with those of three different lab-oratory spectrophotometers. The 0.5-m long 550- um (inside diameter) aqueous waveguide uses only 120 ml of filtered sea-water, making it convenient for use in flow-through cells or when sample volumes are restricted. Source light propagates inside the capillary waveguide by total internal reflection because of the lower refractive index of the waveguide walls with respect to the aqueous core. The absorption coefficient of colored dissolved organic matter (CDOM) …

Go to article

Symmetry Properties Of Halftone Images I : Scattering Symmetry And Pattern Symmetry, Jonathan Arney, Shinya Yamaguchi Jan 1999

Symmetry Properties Of Halftone Images I : Scattering Symmetry And Pattern Symmetry, Jonathan Arney, Shinya Yamaguchi

Articles

Previous work has shown that the mechanism of color and tone reproduction in halftone imaging systems can be described quantitatively by modeling functions for mean level probability, Pij, for light scattering from region i to region j, where regions i and j may be, for example, regions of the printed paper covered by different inks in the halftone process. The value of Pij has been shown to be a function of the area fractions of the regions, fi and fj. In the past, the Pij functions were written empirically to fit observed data or determined by convolution calculations involving the …

Go to article

Symmetry Properties Of Halftone Images Ii : Accounting For Ink Opacity And Dot Sharpness, Jonathan Arney, Akio Tsujita Jan 1999

Symmetry Properties Of Halftone Images Ii : Accounting For Ink Opacity And Dot Sharpness, Jonathan Arney, Akio Tsujita

Articles

Previous work has shown that tone reproduction characteristics of halftone images can be modeled with knowledge of the probability function P[00], for light to reflect from the paper between the halftone dots after having entered the paper between the halftone dots. In the current report, experimental measurements of the micro-reflectance, R[p], of the paper between the dots is measured as a function of dot area fraction, F, and used with the model to calculate experimental values for P[00] versus F. It is then shown that the model can be modified to account for inks that have significant scattering. The model …

Go to article

Computation Of The Folkman Number F_E(3, 3; 5), Konrad Piwakowski, Stanislaw Radziszowski, Sebastian Urbanski Jan 1999

Computation Of The Folkman Number F_E(3, 3; 5), Konrad Piwakowski, Stanislaw Radziszowski, Sebastian Urbanski

Articles

With the help of computer algorithms, we improve the lower bound on the edge Folkman number F_e(3; 3; 5) and vertex Folkman number F_v(3; 3; 4), and thus show that the exact values of these numbers are 15 and 14, respectively. We also present computer enumeration of all critical graphs.

Go to article

A Corporate-Wide Ergonomics Programme: Implementation And Evaluation, Colin Drury, Richard Broderick, Charles Weidman Jan 1999

A Corporate-Wide Ergonomics Programme: Implementation And Evaluation, Colin Drury, Richard Broderick, Charles Weidman

Articles

The challenge of introducing an ergonomics programme into a diverse and relatively loosely-structured corporation is considered. A programme based on a defined multi-step problem-solving process was developed and implemented. An audit of this programme was undertaken in nine divisions, covering each division headquarters and 157 workplaces in 11 plants. From the audit a set of future needs was derived, with changes in the organization, the ergonomic analysis methods, and the specification of solutions.

Go to article

Library Annual Report, 1998-1999, Bates College Jan 1999

Library Annual Report, 1998-1999, Bates College

Library Annual Reports

No abstract provided.

Go to article

Information Services Annual Report, 1998-99, Bates College Jan 1999

Information Services Annual Report, 1998-99, Bates College

Library Annual Reports

No abstract provided.

Go to article

Reinventing Environmental Regulation Through The Government Performance And Results Act: Are The States Ready For The Devolution?, Rena I. Steinzor Jan 1999

Reinventing Environmental Regulation Through The Government Performance And Results Act: Are The States Ready For The Devolution?, Rena I. Steinzor

Faculty Scholarship

No abstract provided.

Go to article

Toward A Global Critical Feminist Vision: Domestic Work And The Nanny Tax Debate, Taunya Lovell Banks Jan 1999

Toward A Global Critical Feminist Vision: Domestic Work And The Nanny Tax Debate, Taunya Lovell Banks

Faculty Scholarship

No abstract provided.

Go to article

The Diaoyutai/Senkaku Islands Dispute: Its History And An Analysis Of The Ownership Claims Of The P.R.C., R.O.C., And Japan, Han-Yi Shaw Jan 1999

The Diaoyutai/Senkaku Islands Dispute: Its History And An Analysis Of The Ownership Claims Of The P.R.C., R.O.C., And Japan, Han-Yi Shaw

Maryland Series in Contemporary Asian Studies

No abstract provided.

Go to article

Dordt College 1999-2000 Catalog, Dordt College. Registrar's Office Jan 1999

Dordt College 1999-2000 Catalog, Dordt College. Registrar's Office

Academic Catalogs

Academic Catalog for 1999-00

Go to article

The Effects Of Some Plant Materials On The Growth And Productivity Ofpleurotus Floridafovose, Abdunnasır Yildiz Jan 1999

The Effects Of Some Plant Materials On The Growth And Productivity Ofpleurotus Floridafovose, Abdunnasır Yildiz

Turkish Journal of Biology

In this study, the soybean, sorghum, peanut and wheat straw were used as culture media for Pleurotus florida. The shortest period for mycelium growth on soybean straw was 10.8 days; basidiocarp formation period, the first, second and third harvesting periods were determined as; 28.2, 33.6, 47.2 and 63.8, days respectively as the shortes periods found with peonut straw; 23.2, 59.5, 63.5, 75.2 and 94.0 days respectively, as the longest periods found with sorghum straw. The fresh mushroom yield obtained with 100 g material (70 % moisture) at first, second, third harvesting periods and total yield was 11.2, 7.7, 4.8 and …

Go to article

Student Union And Activities Annual Report 1999-2000 Jan 1999

Student Union And Activities Annual Report 1999-2000

Student Union Annual Reports

No abstract provided.

Go to article

Curio 1999, James Madison University. College Of Arts And Letters Jan 1999

Curio 1999, James Madison University. College Of Arts And Letters

Curio Magazine

Curio, a magazine highlighting Harrisonburg, Virginia, and its surrounding communities, is published by students in the Media Arts & Design program at James Madison University. Curio is a nonprofit organization supported by the College of Arts and Letters and the School of Media Arts & Design. Subscriptions are not available.

Go to article

The Flute Music Of Luigi Zaninelli, Julie Martin Maisel Jan 1999

The Flute Music Of Luigi Zaninelli, Julie Martin Maisel

Research Theses

Luigi Zaninelli, born in 1932, currently serves as Professor of Composition and Theory at the University of Southern Mississippi in Hattiesburg. During his tenure there, he has composed more than 150 works. His total output exceeds 300 published compositions and more than 60 unpublished pieces. Zaninelli's compositions involving the flute are a valuable addition to the flutist's solo and chamber repertoire. The music can be performed by advanced high school and college level students and provides access to twentieth-century American flute music. His writing for flute is idiomatic and focuses on the ilmate beauty of the instrument. Through researching flute …

Go to article

Awards And Special Recognitions Committee 1998-1999, Bowling Green State University. Administrative Staff Council Jan 1999

Awards And Special Recognitions Committee 1998-1999, Bowling Green State University. Administrative Staff Council

Administrative Staff Council

The records of the Administrative Staff Council (UA-022) are available in print in the Center for Archival Collections.

Go to article

Constituent Network 1987-1988 To 1998-1999, Bowling Green State University. Administrative Staff Council Jan 1999

Constituent Network 1987-1988 To 1998-1999, Bowling Green State University. Administrative Staff Council

Administrative Staff Council

The records of the Administrative Staff Council (UA-022) are available in print in the Center for Archival Collections.

Go to article

Defending Larry Flynt: Why Attacking Flynt's Outing Of Sexual Affairs Is Misguided, Clay Calvert, Robert D. Richards Jan 1999

Defending Larry Flynt: Why Attacking Flynt's Outing Of Sexual Affairs Is Misguided, Clay Calvert, Robert D. Richards

UC Law SF Communications and Entertainment Journal

No abstract provided.

Go to article

Marching To Madness: Dual Use Trademarks After Illinois High School Association V. Gte Vantage, Jonathan Berger Jan 1999

Marching To Madness: Dual Use Trademarks After Illinois High School Association V. Gte Vantage, Jonathan Berger

UC Law SF Communications and Entertainment Journal

March is the month when the college basketball season draws to a close, and the insanity associated with the championship tournaments begins. In 1996, the Court of Appeals for the Seventh Circuit ruled that the term "March Madness" existed with dual-usage. This article argues that there was no need to create the concept of the "dual-use trademark" at all, and that the existing trademark-law framework was perfectly adequate for the task of adjudicating issues such as the one presented here. This article further contends that the potential perils of dualuse trademarks far outweigh any benefits that might spring from their …

Go to article

The Tribune, No. 58, May 1999 Jan 1999

The Tribune, No. 58, May 1999

Mildred E. Persinger Papers

No abstract provided.

Go to article

Preview 2000, No. 2, May 1999 Jan 1999

Preview 2000, No. 2, May 1999

Mildred E. Persinger Papers

No abstract provided.

Go to article

Vaccination With Mage-3a1 Peptide-Pulsed Nature, Monocyte-Derived Dendritic Cells Expands Specific Cytotoxic T Cells And Induces Regression Of Some Metastases In Advanced Stage Iv Melanoma, Beatrice Thurner, Ina Haendle, Claudia Röder Jan 1999

Vaccination With Mage-3a1 Peptide-Pulsed Nature, Monocyte-Derived Dendritic Cells Expands Specific Cytotoxic T Cells And Induces Regression Of Some Metastases In Advanced Stage Iv Melanoma, Beatrice Thurner, Ina Haendle, Claudia Röder

Publications

Dendritic cells (DCs) are considered to be promising adjuvants for inducing immunity to cancer. We used mature, monocyte-derived DCs to elicit resistance to malignant melanoma. The DCs were pulsed with Mage-3A1 tumor peptide and a recall antigens, tetanus toxoid or tuberculin. 11 far advanced stage IV melanoma patients, who were progressive despite standard chemotherapy, received five DC vaccinations at 14-d intervals. The first three vaccinations were administered into the skin, 3 x 106 DCs each subcutaneously and intradermally, followed by two intravenous injections of 6 x 106 and 12 x 106 DCs, respectively. Only minor (less than …

Go to article

Review Of Traise Yamamoto, Masking Selves, Making Subjects: Japanese American Women, Identity, And The Body., Seiji Lippit Jan 1999

Review Of Traise Yamamoto, Masking Selves, Making Subjects: Japanese American Women, Identity, And The Body., Seiji Lippit

Bryn Mawr Review of Comparative Literature

Traise Yamamoto, Masking Selves, Making Subjects: Japanese American Women, Identity, and the Body. Berkeley: University of California Press, 1999. 304 pp. ISBN 0520210344.

Go to article

Review Of Fredric Jameson And Masao Miyoshi, Eds., The Cultures Of Globalization., Ruth Lindeborg Jan 1999

Review Of Fredric Jameson And Masao Miyoshi, Eds., The Cultures Of Globalization., Ruth Lindeborg

Bryn Mawr Review of Comparative Literature

Fredric Jameson and Masao Miyoshi, eds., The Cultures of Globalization. Durham: Duke University Press, 1998. 393 pp. ISBN (paper): 0822321696.

Go to article

1999-2000 Bulletin Of Information - Undergraduate, Seattle University Jan 1999

1999-2000 Bulletin Of Information - Undergraduate, Seattle University

Bulletin of Information

No abstract provided.

Go to article

First Prev Next Last