نتایج جستجو برای: bead space
تعداد نتایج: 502231 فیلتر نتایج به سال:
The non-continuous laser beam in pulsed lasers allows the mechanical peening between two consecutive beams on a still hot weld bead. At a very short time (20, 150 and 300 ms) after laser pulse application, mechanical peening was performed on the welding bead. To achieve these short times, the light sensor detects the nth laser pulse and the mechanical arm starts moving. Upon reaching the tip of...
Background: Although DC Bead has been useful in treatment of multiple and large hepatocellular carcinoma, loading time of doxorubicin into the DC Bead takes a long time of 30-120 minutes. Epirubicin is also used as an antitumor agent together with DC Bead, but its loading efficiency was not sufficiently elucidated. Methods: To shorten loading time of epirubicin into DC Bead (100-300μm, 300-500μ...
Bulk SILICA gel Sorbent Systems http://www.sorbentsystems.com/bulksorbents.html 640SGO55, Orange indicating silica gel, 2-4mm bead, 55 lb drum 639AG55BG, White Silica Gel, 2-4mm bead, 55 lb drum or AGM Container Controls, Inc http://www.agmcontainer.com/products/desiccants/bulk-desiccant.html 920010, Flower Dry Silica Gel, 0.08-0.6 mm bead (fine granular grade, blue indicator), 55 lb bag 920004...
the space now known as complete erdos space ec was introduced by paul erdos in 1940 as the closed subspace of the hilbert space ?2 consisting of all vectors such that every coordinate is in the convergent sequence {0} ? { 1 n : n ? n}. in a solution to a problem posed by lex g. oversteegen we present simple and useful topological characterizations of ec. as an application we determine the ...
Characterization of flaws of weld bead is imperative for high-quality welding. Methods of weld bead inspection include radiographic, ultrasonic and vision inspection. However, such methods are costly and time consuming. The proposed sensor is light, low-cost and fast. This paper summarizes our work on weld bead monitoring and defect detection using an electromagnetic sensor. Measurements are ac...
Austenitic stainless steel SS304 grade was welded with active Tungsten Inert Gas (TIG) welding process by applying a flux paste made of SiO2 powder and acetone. SiO2 flux application improves the weld bead depth with a simultaneous reduction in weld bead width. The improvement in penetration results from arc constriction and reversal of Marangoni convection. Experimental studies revealed that t...
Intracellular pathogens such as Listeria monocytogenes and Rickettsia rickettsii move within a host cell by polymerizing a comet-tail of actin fibers that ultimately pushes the cell forward. This dense network of cross-linked actin polymers typically exhibits a striking curvature that causes bacteria to move in gently looping paths. Theoretically, tail curvature has been linked to details of mo...
The DNA is treated using the discretized wormlike bead-chain model, where each “bead” represents a 3 nm segment of relaxed DNA (1, 2). Each bead is assigned a salt-dependent charge qdna according to Stigter (3). The DNA bead-chain is also assigned an intramolecular force field comprising of stretching, bending, twisting terms that capture all aspects of DNA mechanics. The stretching energy Ustr...
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