Sentence examples for d layer from inspiring English sources

(The D layer is nonreflecting at HF frequencies and merely attenuates the propagating radio wave).

The three layers are designated D, E, and F. The D layer is approximately 80 kilometres (50 miles) high and exists only during daylight hours.

During the day the ionosphere consists of four layers located at average altitudes of 70 km (D layer), 110 km (E layer), 200 km (F1 layer), and 320 km (F2 layer).

(b d) Output feature maps from (b) Layer 4 (c) Layer 8, and (d) Layer 12 when the input patch from (a) is processed by the trained SD-CNN.

(The D layer is nonreflecting at HF frequencies and merely attenuates the propagating radio wave). In the lower HF band, transmission ranges of many thousands of kilometres can be achieved by multiple reflections, called skips, between the Earth and layers of the ionosphere.

Now, a team of researchers believes they know what the d" layer is.

"This may explain the d" layer--it gives us a direction to look in," says Oliver Tschauner of the University of Nevada, Las Vegas.

This work presents our current progress on the rational design and synthesis of aluminophosphates with 2-D layer and 3-D open-framework structures.

Complex 4 has a 1-D polymeric ribbon further connected by intermolecular hydrogen bonds to form a 2-D layer structure.

Compounds 1 3 all feature mixed-ligand characteristic. 1 consists of a two-dimensional (2-D) layer structure containing (4,4) networks.

Although their topological structures are both 2-D layer network assemblies, both central Cd II) ions and Hcit3− ligands display completely different coordination modes.