نتایج جستجو برای: rotatable baffles
تعداد نتایج: 1332 فیلتر نتایج به سال:
The specimen holder for scanning electron microscopy described herein allows a single specimen to be examined in any possible view and significantly improves object illumination. The specimen is glued to a fine pin and flexibly mounted on a double-sided adhesive conductive pad on a rotatable pivot. A milled pot placed beneath the specimen acts as an electron trap. This provides a homogeneous bl...
In this paper, we consider a two-dimensional version of the on-line bin packing problem, in which each rectangular item that should be packed into unit square bins is “rotatable” by 90 ◦ . Two on-line algorithms for solving the problem are proposed. The second algorithm is an extension of the 2rst algorithm, and the worst-case ratio of the second one is at least 2.25 and at most 2.565. c © 2002...
Innovative fiber-coupled add-ons for light sheet-based fluorescence microscopy (LSFM) with commercial inverted microscopes were described previously [1]. The light sheet is generated either by an achromatic cylindrical lens or by a spherical mirror with astigmatic distortion. Presently the “lens system” is further validated and applied to various samples including 3D multicellular spheroids and...
Burnishing is a method of finishing and hardening machined parts by plastic deformation of the surface. Experimental work based on central composite second order rotatable design has been carried out on a lathe machine to establish the effects of ball burnishing parameters on the surface roughness of brass material. Analysis of the results by the analysis of variance technique and the F-test sh...
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