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378 results on '"Little, J. R."'

1. Student Perspectives on Experiencing a Northern Ontario Portage and Wilderness Immersion Program at Laurentian University in Northern Ontario, Canada

Author

Tetzlaff, E. J., Greasley, C. R., Ritchie, S. D., Oddson, B., Little, J. R., Benoit, J., and McGarry, J.

Abstract

This study examined student experiences participating in a peer-led three-day wilderness canoe excursion in Northern Ontario, Canada. This program is a mandatory outdoor experience program (MOEP) for third-year students and is the final course in a progressive series of outdoor experiences offered at the beginning of the first, second, and third year. Guided by principles of realist evaluation, the written reflections from consenting students in the 2015 MOEP cohort were analyzed to identify the contexts and mechanisms associated with enjoyment or lack of enjoyment of their trip. These findings will help improve the MOEP program and have implications for similar intentionally led outdoor programs offered at other higher education institutions.

Published
2023
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3. Complete retail price list for 1937, February 1 /

Author

W. Grossmann & Son, Little, J. R., Henry G. Gilbert Nursery and Seed Trade Catalog Collection, U.S. Department of Agriculture, National Agricultural Library, W. Grossmann & Son, Little, J. R., and Henry G. Gilbert Nursery and Seed Trade Catalog Collection

Subjects
Farm supplies, Flowers, Petersburg, Prices, Seed industry and trade, Seeds, Vegetables, Virginia
Published
1937

4. Complete retail price list for 1936, February 1 /

Author

W. Grossmann & Son, Little, J. R., Henry G. Gilbert Nursery and Seed Trade Catalog Collection, U.S. Department of Agriculture, National Agricultural Library, W. Grossmann & Son, Little, J. R., and Henry G. Gilbert Nursery and Seed Trade Catalog Collection

Subjects
Farm supplies, Flowers, Petersburg, Prices, Seed industry and trade, Seeds, Vegetables, Virginia
Published
1936

5. Complete retail price list for 1935 /

Author

W. Grossmann & Son, Little, J. R., Henry G. Gilbert Nursery and Seed Trade Catalog Collection, U.S. Department of Agriculture, National Agricultural Library, W. Grossmann & Son, Little, J. R., and Henry G. Gilbert Nursery and Seed Trade Catalog Collection

Subjects
Flowers, Petersburg, Prices, Seed industry and trade, Seeds, Vegetables, Virginia
Published
1935

6. Complete retail price list for 1934 /

Author

W. Grossmann & Son, Little, J. R., Henry G. Gilbert Nursery and Seed Trade Catalog Collection, U.S. Department of Agriculture, National Agricultural Library, W. Grossmann & Son, Little, J. R., and Henry G. Gilbert Nursery and Seed Trade Catalog Collection

Subjects
Catalogs, Field crops, Flowers, Nursery stock, Petersburg, Prices, Seeds, Vegetables, Virginia
Published
1934

7. Complete retail price list for 1933 : field seed, garden seed, flower seed, poultry food and supplies, fertilizers, insecticides and sparayers, etc. /

Author

W. Grossmann & Son, Little, J. R., Henry G. Gilbert Nursery and Seed Trade Catalog Collection, U.S. Department of Agriculture, National Agricultural Library, W. Grossmann & Son, Little, J. R., and Henry G. Gilbert Nursery and Seed Trade Catalog Collection

Subjects
Agricultural implements, Catalogs, Equipment and supplies, Field crops, Flowers, Grasses, Nursery stock, Petersburg, Poultry, Prices, Seed industry and trade, Seeds, Vegetables, Virginia
Published
1933

26. OPTIMIZING A PORTABLE MICROWAVE INTERFERENCE SCANNING SYSTEM FOR NONDESTRUCTIVE TESTING OF MULTI-LAYERED DIELECTRIC MATERIALS.

Author

Schmidt, K. F., Little, J. R., Ellingson, W. A., and Green, W.

Subjects
*MICROWAVES, *ELECTRIC interference, *NONDESTRUCTIVE testing, *DIELECTRICS, *WAVEGUIDES
Abstract

The projected microwave energy pattern, wave guide geometry, positioning methods and process variables have been optimized for use of a portable, non-contact, lap-top computer-controlled microwave interference scanning system on multi-layered dielectric materials. The system can be used in situ with one-sided access and has demonstrated capability of damage detection on composite ceramic armor. Specimens used for validation included specially fabricated surrogates, and ballistic impact-damaged specimens. Microwave data results were corroborated with high resolution direct-digital x-ray imaging. Microwave interference scanning detects cracks, laminar features and material properties variations. This paper presents the details of the system, the optimization steps and discusses results obtained. [ABSTRACT FROM AUTHOR]

Published
2010
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27. A PORTABLE MICROWAVE INTERFERENCE SCANNING SYSTEM FOR NONDESTRUCTIVE TESTING OF MULTI-LAYERED DIELECTRIC MATERIALS.

Author

Schmidt, K. F., Little, J. R., Ellingson, W. A., and Green, W.

Subjects
*MICROWAVES, *NONDESTRUCTIVE testing, *DIELECTRICS, *SCANNING systems, *COMPOSITE materials, *CERAMICS
Abstract

A portable, microwave interference scanning system, that can be used in situ, with one-sided, non-contact access, has been developed. It has demonstrated capability of damage detection on composite ceramic armor. Specimens used for validation included specially fabricated surrogates, and non-ballistic impact-damaged specimens. Microwave data results were corroborated with high resolution direct-digital x-ray imaging. Microwave interference scanning detects cracks, laminar features and material properties variations. This paper will present details of the system and discuss results obtained. [ABSTRACT FROM AUTHOR]

Published
2009
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39. Digital subtraction angiography in the evaluation of intracranial and extracranial vascular disease.

Author

Weinstein, Meredith, Modic, Michael, Furlan, Anthony, Pavlicek, William, Little, John, Weinstein, M A, Modic, M T, Furlan, A J, Pavlicek, W, and Little, J R

Subjects
ANGIOGRAPHY, CAROTID artery, CEREBRAL angiography, CAROTID artery diseases, CEREBRAL arterial diseases, COMPARATIVE studies, COMPUTERS, DIGITAL diagnostic imaging, RESEARCH methodology, MEDICAL cooperation, RESEARCH, EVALUATION research, EQUIPMENT & supplies
Abstract

Digital subtraction angiography (DSA) is a method of visualizing the vessels of the body with the intravenous injection of contrast material. Improvements in computers, television systems, and image intensifiers have contributed to the increased image quality of DSA. With DSA, the vessels such as the carotid bifurcations and the intracranial vasculature can be visualized with a 2-3% concentration of contrast material, while with conventional angiography, the concentration of contrast in vessels is 40-50%. Using IV DSA, visualization of the carotid bifurcations is of good or excellent quality 85% of the time. In a high percentage of these cases, IV DSA replaces conventional angiography, although for imaging of the intracranial vessels, IV DSA is not as good as conventional angiography. In most tumor patients, however, conventional intracranial angiography is not needed because IV DSA combined with computed tomography gives sufficient information. [ABSTRACT FROM AUTHOR]

Published
1983
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