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🔍 robert beals 📂 Engineering 📄 Peer-Reviewed
Showing 12 results for "robert beals" in Engineering · Peer-Reviewed
Engineering Peer-Reviewed PDF DOI

Large-Aperture Metamaterial Lens Antenna for Multi-Layer MIMO Transmission for 6G

Jaehyun Lee, Hogyeom Kim, Jungsuek Oh · 2022

A metamaterial lens refers to a planar structure having multiple metamaterial unit cells capable of manipulating electromagnetic waves to improve antenna gains by changing their shape, geometry, size,…

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Engineering Peer-Reviewed PDF DOI

Ookinete rates in Afrotropical anopheline mosquitoes as a measure of human malaria infectiousness.

 · 1970

Anopheles gambiae s.1. and An. funestus were sampled for Plasmodium spp. ookinetes in two P. falciparum-endemic sites in western Kenya. Since the ookinete is a transitional stage of short duration, oc…

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Engineering Peer-Reviewed PDF DOI

Electrophysiological mechanisms of spontaneous termination of sustained monomorphic reentrant ventricular tachycardia in the canine postinfarction heart.

 · 1970

BACKGROUND: The electrophysiological mechanisms of spontaneous termination of sustained monomorphic ventricular tachycardia (SMVT), in the postinfarction heart, generally considered secondary to a ree…

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Engineering Peer-Reviewed PDF DOI

Central venous oxygen saturation during hypovolaemic shock in humans.

 · 1970

We compared central venous oxygen saturation and central venous pressure (CVP) as indices of the effective blood volume during 50 degrees head-up tilt (anti-Trendelenburg's position) induced hypovolae…

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Engineering Peer-Reviewed PDF DOI

Experimental characterization of a vector Doppler system based on a clinical ultrasound scanner.

 · 1970

We have developed a vector Doppler system using a clinical ultrasound scanner with a research interface. In this system, vector Doppler estimation is performed by electronically dividing a linear arra…

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Engineering Peer-Reviewed PDF DOI

Characterization of cytoskeleton mechanical properties and 3D-actin structure in twisted adherent epithelial cells.

 · 1970

Evaluation of the cytoskeleton mechanical properties requires specific micromanipulation techniques such as the magnetic twisting cytometry technique, in which microbeads are specifically linked to th…

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Engineering Peer-Reviewed PDF DOI

Human maternal and fetal response to graded exercise.

 · 1970

Six healthy active women in the third trimester of pregnancy participated in a graded exercise protocol to levels of exertion perceived to be equivalent to that of their usual exercise regimen. Fetal …

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Engineering Peer-Reviewed PDF DOI

Computer model of excitation and recovery in the anisotropic myocardium. III. Arrhythmogenic conditions in the simplified left ventricle.

 · 1970

A computer model of propagated excitation and recovery in anisotropic cardiac tissue has been described in the first two reports of this series. The model consists of a large number of excitable eleme…

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Engineering Peer-Reviewed PDF DOI

Optimization of the oblique angles in the treatment of prostate cancer during six-field conformal radiotherapy.

 · 1970

Historically, four perpendicular treatment fields or bilateral arcs have been used in the treatment of prostate cancer. As new techniques challenge the four-field box technique for their superiority o…

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Engineering Peer-Reviewed PDF DOI

The Lasting Influences of Early Food-Related Variety Experience: A Longitudinal Study of Vegetable Acceptance from 5 Months to 6 Years in Two Populations.

 · 1970

Children's vegetable consumption falls below current recommendations, highlighting the need to identify strategies that can successfully promote better acceptance of vegetables. Recently, experimental…

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Engineering Peer-Reviewed PDF DOI

Isolation, structure determination, synthesis, and sensory activity of N-phenylpropenoyl-L-amino acids from cocoa (Theobroma cacao).

 · 1970

Application of chromatographic separation and taste dilution analyses recently revealed besides procyanidins a series of N-phenylpropenoyl amino acids as the key contributors to the astringent taste o…

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Engineering Peer-Reviewed PDF DOI

Entomological indices of malaria transmission in Chikhwawa district, Southern Malawi.

 · 1970

BACKGROUND: Although malaria is highly prevalent throughout Malawi, little is known of its transmission dynamics. This paper describes the seasonal activity of the different vectors, human biting indi…

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