When an ulcer-bearing area of the duodenum is viewed sideways after an opaque meal there may be visible a wedge-shaped area in which the barium is absent, with a central dark spot or depression above representing the actual ulcer, undulations in its neighbourhood, a shaded margin, and an interval or notch below. These points will be seen in Plate I. It is a key to the interpretation of other ph...

Foliar ozone uptake rates of different-sized black cherry (Prunus serotina Ehrh.) trees were compared within a deciduous forest and adjacent openings in north-central Pennsylvania during one growing season. Study trees included open-grown seedlings and saplings, forest understory seedlings and saplings, and sunlit and shaded portions of mature canopy tree crowns. Instantaneous ozone uptake rate...

Daily variations in net gas exchange, chlorophyll a fluorescence and water relations of mature, sun-acclimated grapefruit (Citrus paradisi Macfady.) and orange (Citrus sinensis L. Osbeck) leaves were determined in tree canopies either shaded with 50% shade screens or left unshaded (sunlit). Mean daily maximum photosynthetic photon flux density (PPFD) under shade varied from 500 to 700 micromol ...

Outline-shape information may be particularly important in the recognition of depth-rotated objects because it provides a coarse shape description which gives first-pass information about the structure of an object. In four experiments, we compared recognition of silhouettes (showing only outline shape) with recognition of fully shaded images of objects, by means of a sequential-matching task. ...

The standard “hillshade” tool included in most GIS software suites implements a simple model of lighting with set assumptions that make the fast and easy to use. This simplified can visually degrade steep terrains, producing over-dark areas removing important terrain detail. underlying can, however, be manipulated output displays without these drawbacks. mimics effect ambient light complicating...

The efficacy of maximum label rates of bifenthrin applications to dry tires to prevent Aedes mosquito breeding was investigated by field colonization and bioassay trials in shaded and unshaded locations. Aedes notoscriptus and Culex quinquefasciatus larvae were the most abundant species present in the field colonization trial. Colonization and survival of Ae. notoscriptus larvae to the late ins...

Steers ( = 480; 22% with black hides and 78% with red hides) were used to study the effects of shade and feeding zilpaterol hydrochloride (ZH) on performance, carcass quality, heat stress, mobility, and body temperature (BT). A randomized block design with a 2 × 2 factorial treatment arrangement was used with 4 replicates per treatment. Factors included housing type (open or shaded pens) and th...

Concerns in regard to thermal discomfort experienced by cattle are increasing, especially in the summer time. It is important to determine whether or not pastured beef cattle would make use of shade during sunny circumstances in a temperate climate. If so, scientifically based guidelines may need to be formulated for translation into legislation aiming to protect animal welfare. Approximately 2...

shaded pole induction motors, despite the simplicity and low cost, are difficult to analyze particularly in the equivalent circuit methods, due to the asymmetric structure, saturation, harmonics, inaccurate estimation of leakage inductances and skew. hence, 3d numerical methods could be very useful in the design and optimization stage. this paper presents the 3d transient finite element analysi...