James B. Mercer

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Within the past few years there has been a significant increase in the use of Digital Elevation Models (DEMs), for applications as varied as telecommunications and precision agriculture, forestry and flood-risk assessment. Additionally, one may expect that externally-supplied DEMs will be used increasingly for ortho-rectification of high-resolution(More)
Experiments were performed on conscious goats to confirm the suggestion that in this species the inner body contains more thermosensitive structures than those residing in the hypothalamus and spinal cord. For this purpose goats were chronically implanted with local thermodes and intravascular heat exchangers to allow independent temperature control of the(More)
BACKGROUND Water-filtered infrared-A (wIRA) is a special form of heat radiation with a high tissue-penetration and with a low thermal burden to the surface of the skin. wIRA is able to improve essential and energetically meaningful factors of wound healing by thermal and non-thermal effects. AIM OF THE STUDY prospective study (primarily planned(More)
Water-filtered infrared-A (wIRA) as a special form of heat radiation with a high tissue penetration and with a low thermal load to the skin surface acts both by thermal and thermic as well as by non-thermal and non-thermic effects. wIRA produces a therapeutically usable field of heat in the tissue and increases tissue temperature, tissue oxygen partial(More)
The central portion of chronic wounds is often hypoxic and relatively hypothermic, representing a deficient energy supply of the tissue, which impedes wound healing or even makes it impossible. Water-filtered infrared-A (wIRA) is a special form of heat radiation with a high tissue penetration and a low thermal load to the skin surface. wIRA produces a(More)
In this paper we report upon the advances achieved over the past year in the creation of Digital Elevation Models (DEMs) on an operational, commercial basis, using data from two very different radar platforms. STAR3i is an airborne interferometric Synthetic Aperture Radar (SAR), capable of achieving DEMs at a level of detail and accuracy suitable for map(More)
In conscious rabbits with chronically implanted hypothalamic thermodes sustained panting was induced by exposure to 39 degrees C ambient temperature. Core temperature (Tc) measured in the esophagus was maintained at hyperthermic levels of about 41.1, 40.2 and 39.2 degrees C by controlled heat extraction with a cooling thermode inserted into the colon.(More)
The role for Digital Elevation Models (DEMs) has been expanding rapidly in recent years. Applications are increasing and encompass industries as diverse as telecommunications, forestry, municipal engineering and precision agriculture to name only a few. The accuracy and detail required varies with application, and a number of technologies are able to(More)
1. Extrahypothalamic thermosensitivity at normal (39 degrees C) and lowered (33.8 degrees C) hypothalamic clamp temperatures has been measured in cold exposed rabbits equipped with chronically implanted hypothalamic perfusion thermodes. The animals were subjected to body core cooling by means of cold perfused thermodes placed in the colon. 2. At lowered(More)
Hypothalamic thermosensitivity has been investigated in conscious Willow Ptarmigan (Lagopus lagopus lagopus) provided with chronically implanted hypothalamic perfusion thermodes. The birds were exposed to either cold (Ta - 10 degrees C) or warm (Ta + 25 degrees C) ambient conditions while hypothalamic temperature (Thy) was clamped for periods of 20 min at(More)