نتایج جستجو برای: cracked micro beam
تعداد نتایج: 228486 فیلتر نتایج به سال:
This paper proposes a new method using Wide Line Detector based statistical shape Feature (WLDF) to identify whether or not a tongue is cracked; a cracked tongue is one of the most frequently used visible features for diagnosis in traditional Chinese Medicine (TCM). We first detected a wide line in the tongue image, and then extracted WLDF, such as the maximum length of each detected region, an...
Recently, there is great interest in monolithically integrated free-space micro-optics using micromachining techniques [ 11. Monolithic integration of the whole micro-optical system can drastically reduce its size, weight, and cost. In addition, the expensive packaging process of individual optical elements can also be eliminated. An example of the newly micromachined integrated micro-optical s...
The present paper aims at analytically evaluating the natural frequencies of cracked slender masonry elements. problem is dealt with in framework linear perturbation, and small oscillations structure are studied under loaded conditions, after equilibrium for permanent loads has been achieved. A beam element made masonry-like material considered, some explicit expressions beam's fundamental freq...
Results of studies on micro-focused X-ray beam diagnostics using an X-ray beam imaging (XBI) instrument based on the idea of recording radiation scattered from a thin foil of a low-Z material with a lensless camera are reported. The XBI instrument captures magnified images of the scattering region within the foil as illuminated by the incident beam. These images contain information about beam s...
On bi-static or multi-static space-borne radar the appropriate digital beam-former (DBF) algorithms can obtain multi-angular synthetic aperture radar (SAR) data and enhance signal-tonoise ratio. Some applications ask for short revisit time that need to ensure seamless coverage to obtain a wide swath SAR image data with a single satellite using digital beam-forming on receive scheme [1]. The tra...
In this article, the size effect on the dynamic behavior of a simply supported multi-cracked microbeam is studied based on the Modified Couple Stress Theory (MCST). At first, based on MCST, the equivalent torsional stiffness spring for every open edge crack at its location is calculated; in this regard, the Stress Intensity Factor (SIF) is al...
The presented work introduces a numerical parametric study on the crack propagation direction under mixed-mode conditions (mode I + II). It is conducted for the geometry of an eccentric asymmetric fourpoint bending of a single edge notched beam specimen; various levels of mode-mixity are ensured by modifications in the crack length and crack eccentricity. The direction of crack propagation is e...
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