Sentences with phrase «surface defines an area»

The laser shining through the silver surface defines an area, approximately 250 nanometers in diameter, where chemical imaging was performed.

Not exact matches

Scientists define them as periods when the sea surface in a given area of the ocean gets unusually warm for at least five days in a row.

Current solid catalysts that act on liquid or gaseous reagents are often composed of poorly defined metal nanoparticles dispersed randomly on supporting materials with large surface areas.

When observing the Sun with appropriate filtration, the most immediately visible features are usually its sunspots, which are well - defined surface areas that appear darker than their surroundings due to lower temperatures.

Clay particles, defined as having a size less than 1 - 2 microns, have a very large surface area relative to their size.

As you move further away, the dual lasers expand as the target area increases to define accurately your measured surface in a virtual circle.

By the end of the powerpoint students would have covered: - Why do plants and animals need to have exchange surfaces - Define the term surface area to volume ratio - How does the surface area to volume ratio change as the organism gets larger.

Large concave or convex surface areas are structured by taut, clearly defined lines.

Painted surfaces, teak and rattan furniture define the dining and lounging area.

Onto these structures Day - Glo paint and industrial enamels are applied as «material on material,» defining areas or zones on the raw plywood surfaces generating layers of information.

The chromatic surface of the entire canvas becomes neat, precise and devoid of any incident, with each area being clearly defined and almost entirely impersonal.

Tightly defined, carefully rendered circles, large X's or other repeated motifs may dominate the surfaces — framing areas in a deliberate way... While her painting conveys spontaneity, she approaches it with serious intensity and careful forethought.

Bantock writes that «Rigden, for all his cool, has a razor - sharp awareness of the massive constraints which define a painting, that a painting has only three realities: area (surface plus edge), chroma and facture.

Then in 1947 Rothko eliminated recognizable forms defined by lines, building up his surfaces with irregular colour stains, high in key, which formed a complex of distinct, segmented areas.

The Tropics, loosely defined as the region from 30N to 30S latitude, make up nearly half the surface area of the Earth; they are home to 70 % of its people, and the vast majority of its biological diversity.

Sea ice extent is defined as the surface area enclosed by the sea ice edge (where sea ice concentration falls below 15 %).

«Except, both melt and freezing area's are more defined by surface area, not volume.

Here we assess the diurnal and seasonal variation of surface urban heat island intensity (SUHII) defined as the surface temperature difference between urban area and suburban area measured from the MODIS.

Similarities may exist in the spectral nature of the radiation being emitted from a gas and the radiation being emitted from a differential area on a blackbody surface; but without a clearly defined surface, I don't see how Planck's blackbody radiation law can be applied.

What I have trouble with is applying Planck's blackbody radiation law to matter that does not have a clearly defined surface area.

Andreas, in the M&M study the dependent variable is the trend is the measured surface temperature over a given time period for suitably defined areas of land surface (i.e. one trend per area).

If you live in a coastal area, you may not be covered for damage caused by storm surge (usually defined as «a rush of water onshore caused by strong winds pushing on the ocean's surface) and / or movements caused by the sea (usually with the exception of tsunamis).