point source in English
That is why we often speak of the planetary ‘disk’ in astronomy: even under slight magnification the human eye interprets a planet as a 2 dimensional source of light and not a point source .
However, in a British study in which the authors compared a population living around a point source of air pollution with a control population, no increase in the prevalence of low birth-weight was evident in the polluted area.
Use "point source" in a sentence
1. Accidental Contamination at a "Point Source"
2. 5 An alternative explanation is that familial infection is occurring from a point source.
3. 29 Agricultural non - point source pollution is driven by dynamical factors, water character and landform characteristics.
4. Collimator, device for changing the diverging light or other radiation from a point source into a parallel beam
5. Project partners developed three automated instruments: a fluorometer, the Point Source Integrating Cavity absorption meter (PSICAM) and a reflectance module.
6. Point source insulation using silencer, damping, attenuators on noise sources, e.g. fans, acoustic vents, mufflers, and acoustic enclosures of filters.
7. Point-source entry Localized entry of agrochemicals into drinking water, such as by accidental spills and manure leakage into domestic wells.
8. The serious non-point source pollution and cross-pollution in plain tidal river networks presented problems of environmental pollution and environmental safety.
9. Phase aberration in the acquired ultrasound image may be corrected, if necessary, using each microbubble (28) as a point source or point-like scatterer.
10. 6 In the two-dimensional interpretation, we adopt the point source finite-element method and the reciprocity principle which can lighten the calculation burden.
11. Long term accumulations of Non-point Source Pollution (NPSP), can be detrimental to the water and sediment quality of the harbour and near shore areas.
12. Long-term accumulations of this non-point source pollution can be detrimental to the water and sediment quality of the harbour and near shore areas.
13. 3-Point Bending involves placing the material across a span supported on either ends of the material and bringing down a point source to the center
14. The apparent Candlepower is the Candlepower of a point source which will produce the same illumination at a given distance as produced by a given light source.
15. The intent of these simulations was to explore the phenomenology associated with low-altitude Airbursts, with the particular goal of determining whether the altitude of maximum energy deposition can be used as a reasonable estimate of the equivalent height of a point source explosion
16. Develop Aggregative sampling for preharvest food safety testing and determine its power to detect bacterial hazards using inoculated field trials.We will use a cross-sectional study design to generate fields for developing Aggregative swabbing to detect preharvest leafy green contamination by one of three mechanisms: (i) point-source (e.g., splash from in-field
17. Results: The Biograph Vision showed a transverse and axial spatial resolution of 3.6 and 3.5 mm, respectively, in full width at half maximum at a 1-cm offset from the center of the field of view (measured with a 22 Na 0.25-mm point source), a NEMA sensitivity of 16.4 kcps/MBq, and a NEMA peak noise-equivalent count-rate of 306 kcps at 32 kBq/mL