Several approaches to the imaging of the x-ray beam cross-section in the LCLS facility have been proposed: deflecting a small part of the beam by a thin mirror; partial scattering from a thin, high-density gas jet, partial scattering from a thin solid foil. The general feature of all these diagnostics is that the imaging does not introduce significant perturbations to the beam. A set of design ...

PURPOSE We aimed to perform an imaging analysis of interlobar fissures and their variations using thin-section computed tomography (CT). METHODS Volumetric thin-section CT scanning was performed in 208 subjects. Interlobar fissures were observed on axial images, and reconstructed coronal and sagittal images were observed by multiplanar reformatting (MPR). The vessel distributions were verifie...

A new method is described for the enzymatic preparation of testicular tissue to obtain vital spermatozoa for ICSI. The tissue obtained from both testes by biopsy is studied by means of the semi-thin section method as well as being cryo-preserved. If spermatid formation is assured by semi-thin section histology, vital spermatozoa from the cryo-preserved portion of testicular tissue are enzymatic...

Multifractal analyses of binary images of soil thin sections (STS) are widely used to characterize pore structure. However, no geometrical model is known to exist for a binary multifractal. Thus, the multifractality of binary images, and the accuracy of multifractal parameters estimated from them, need to be carefully evaluated. We captured 8-bit depth resolution digital grayscale images of thr...

The first electron microscope research on skin biopsy material from patients with lepra lepromatosa was made by Brieger and Glauert (:!). Since 1958 research ~roups from Kyoto University, Japan, and the Instituto Venezolano de Investigaciones Cientlficas and Ministry of H ealth and Social Assistanc(' in Caracas, V cnczuela (J maeda et oZ. (3.U), Nishiura (0), and Yamamoto et oZ. (11.12) have be...

In this paper we present an asymptotic analysis of the three-dimensional problem for a thin linearly elastic cantilever Ωε = ωε × (0, l) with rectangular cross-section ωε of sides ε and ε 2, as ε goes to zero. Under suitable assumptions on the given loads, we show that the threedimensional problem converges in a variational sense to the classical one-dimensional model for extension, flexure and...

The high frequency conductivity of thin metallic and graphitic nano-films attracts interest due to many potential applications in spin electronics, electromagnetic shielding, flexible antennas, displays, and in solar cells. Surface morphology of thin conducting nano-films typically consists of an isolated clustering structure, which can evolve into a conducting percolated network [1]. The high ...

The cell envelope of a marine pseudomonad as seen in thin section by electron microscopy has the double-membrane structure typical of other gram-negative bacteria. Cells washed with a solution containing Na+, K+, and Mg++ at their concentrations in the growth medium, when suspended briefly in 0.5 M sucrose, lost 13% of their hexosamine in a form nonsedimentable by centrifugation at 73,000 x g. ...