air hole


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air hole

In the foundation of a house, an opening that provides ventilation for a crawl space.
References in periodicals archive ?
Therefore, the air hole radius (r) and the lattice space constant (a) are 263 and 612 nm, respectively.
It is well known to us that in usual triangular lattice PCF the conventional notations of air-hole diameter are "d" and hole-to-hole distance is "[LAMBDA]." In the analysis of the present square-lattice PCF structures, we use [LAMBDA] as the hole-to-hole spacing in horizontal or vertical direction with d as the diameters of the air holes. Our designed PCF consists of four numbers of air-hole rings with the first air-hole ring infiltrated with liquid of certain refractive indices.
A PCF is an optical fiber that achieves its waveguide properties not from a spatially variable glass structure but from planning of very small and closely spaced air holes which go through the whole length of fiber [1-3].
If the toes are not substantial enough, the chicken can be attached to a small mound of clay "dirt" for stability, remembering that the air hole must be clear to the outside.
show maximum light coupling for polarized light from the core to the gold filled air hole. Fig 3.
During filming on the ice, he discovers the trapped whales whose only air hole is freezing over and he broadcasts a news piece.
In this paper, we introduce a DC-PCF with two fiber cores separated by one air hole in the cross-section.
The rat had gnawed at the air hole in the side of the bin to make a way in.
You could see it clearly, blowing from its air hole. It was still moving at about 2pm.
In addition to the video, an instructional guide and reproducible handout list the tools needed to create the whistle's basic form, cut an air hole, create an air passage, and complete the whistle in a creative, whimsical manner.
Our proposed temperature sensor was constructed by filling the temperature sensitive liquid into the air hole of PhC that has a refractive index of 1.45 at room temperature (25[degrees]C).