Search Results - "Bird, T S"

A Frequency Reconfigurable Printed Yagi-Uda Dipole Antenna for Cognitive Radio Applications by Yong Cai, Guo, Y. J., Bird, T. S.

“…A frequency reconfigurable printed Yagi-Uda antenna is presented for cognitive radio applications. A 46% continuous frequency tuning bandwidth is obtained by…”
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Drospirenone and non‐fatal venous thromboembolism: is there a risk difference by dosage of ethinyl‐estradiol? by Bird, S. T., Delaney, J. A. C., Etminan, M., Brophy, J. M., Hartzema, A. G.

“…Summary Background Previous studies concluded that there was an increased risk of non‐fatal venous thromboembolism (VTE) with drospirenone. It is unknown…”
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Toward Integrating Qualitative and Quantitative Methods: An Introduction by Steckler, Allan

“…Quantitative research methods produce factual, reliable, and generalizable data. Qualitative methods generate rich, detailed, valid process data. Ways to…”
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A planar resonator antenna based on a woodpile EBG material by Weily, A.R., Horvath, L., Esselle, K.P., Sanders, B.C., Bird, T.S.

“…A resonator antenna made from a complex artificial surface and a metallic ground plane is described. The complex surface is realized using a woodpile…”
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Separate black and white infant mortality models: Differences in the importance of structural variables by Bird, Sheryl Thorburn

“…In the United States, the disparity in black and white infant mortality persists despite reductions in overall infant mortality. In 1988, 23 of the 50 states…”
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The relationship between structural and health services variables and state-level infant mortality in the United States by Bird, S T, Bauman, K E

“…This study compared the relative strength of the associations of a set of structural (social, economic, and political) variables and a set of health services…”
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E-shaped patch antennas for high-speed wireless networks by Ge, Y., Esselle, K.P., Bird, T.S.

“…Thin, broad-band, E-shaped microstrip patch antennas (ESPAs), operating in the 5-6 GHz frequency range, are presented. They are intended for high-speed (IEEE…”
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A dual-band and wideband planar inverted-F antenna for WLAN applications by Janapsatya, J., Esselle, K. P., Bird, T. S.

“…A dual‐band planar inverted‐F antenna (PIFA), presented here, covers both 2.4‐ and 5‐GHz bands used in all IEEE 802.11 WLAN standards. Computed and measured…”
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A hybrid-resonator antenna: experimental results by Esselle, K.P., Bird, T.S.

“…Experimental results are presented for a hybrid-resonator antenna, consisting of a microstrip patch resonator coupled to a dielectric resonator. They…”
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Analysis of radiation from two separate circular cylindrical waveguides by the method of moments by Cooray, F. R., Bird, T. S.

“…A method of moments (MOM) technique is described for analyzing the radiation from two parallel perfectly conducting circular cylindrical waveguides whose…”
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Disease ecology and a reformist alternative: The case of infant mortality by Gesler, Wilbert M, Bird, Sheryl Thorburn, Oljeski, Stephen A

“…This paper attempts to shed some light on the recent debate between those who advocate a reformed medical geography and those who respond that reform is not…”
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Mutual coupling between rotated horns in a ground plane by Bird, T.S., Bateman, D.G.

“…Two formulations are presented for the mutual admittance of rotated rectangular apertures in a ground plane. One extends an earlier solution, and the other is…”
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A conceptual model of women's condom use intentions: Integrating intrapersonal and relationship factors by Harvey, S. Marie, Beckman, Linda J., Gerend, Mary A., Bird, Sheryl Thorburn, Posner, Sam, Huszti, Heather C., Galavotti, Christine

“…We developed and tested a multifaceted model of condom use intentions with cross-sectional data from 435 heterosexual women at risk for HIV/STIs. In addition…”
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Mutual coupling in arrays of coaxial waveguides and horns by Bird, T.S.

“…A solution is presented for the mutual coupling between the modes of different-sized circular coaxial aperture arrays, which are used as direct radiators and…”
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Birth Control Conspiracy Beliefs, Perceived Discrimination, and Contraception among African Americans: An Exploratory Study by Thorburn Bird, Sheryl, Bogart, Laura M.

“…We conducted a cross-sectional telephone survey to explore the relationship of birth control conspiracy beliefs and perceived discrimination to contraceptive…”
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The Use of Simple Thin Partially Reflective Surfaces With Positive Reflection Phase Gradients to Design Wideband, Low-Profile EBG Resonator Antennas by Yuehe Ge, Esselle, K. P., Bird, T. S.

“…Partially reflecting surfaces (PRS) with positive reflection phase gradients are investigated for the design of wideband, low-profile electromagnetic band gap…”
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Accurate asymptotic solution for the surface field due to apertures in a conducting cylinder by Bird, T.

“…Asymptotic solutions for the surface field due to a magnetic point source on a cylinder can simplify the computational task in the analysis of mutual…”
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Compact multimode horn with low sidelobes for global Earth coverage by Granet, C., Bird, T.S., James, G.L.

“…A new multimode corrugated horn is described for full-Earth coverage from a geostationary satellite. The horn has low sidelobes, low cross polarization, and is…”
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Comparison of asymptotic solutions for the surface field excited by a magnetic dipole on a cylinder by Bird, T.

“…In the analysis of mutual coupling in apertures on a convex surface, the surface field due to a magnetic dipole on a large conducting cylinder is an important…”
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Getting your partner to use condoms: Interviews with men and women at risk of HIV/STDs by Bird, Sheryl Thorburn, Harvey, S. Marie, Beckman, Linda J., Johnson, Christa H., The PARTNERS Project

“…Data from individual semistructured interviews with 90 young heterosexual couples were analyzed to identify strategies that men and women at risk of HIV/STDs…”
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