نتایج جستجو برای: 301 stainless steel
تعداد نتایج: 90037 فیلتر نتایج به سال:
BACKGROUND A biomechanical study of three sternotomy closure techniques (figure-of-eight stainless-steel wires, Pectofix Dynamic Sternal Fixation [DSF] stainless-steel plates, and figure-of-eight stainless-steel cables) was conducted to compare strength and stiffness variables in three clinically relevant loading modes (anterior-posterior shear, longitudinal shear, and lateral distraction). M...
BACKGROUND Attritional bone loss in patients with recurrent anterior instability has successfully been treated with a bone block procedure such as the Latarjet. It has not been previously demonstrated whether cortical or cancellous screws are superior when used for this procedure. PURPOSE To assess the strength of stainless steel cortical screws versus stainless steel cannulated cancellous sc...
There is limited knowledge regarding the attachment of cell wall-deficient forms of Listeria monocytogenes to abiotic and food contact surfaces. A typical L-form phenotype of Listeria monocytogenes was induced, propagated and recovered in both broth and plate culture by exposure to sub-lethal concentrations of ampicillin. Attachment of both cell-walled and L-forms to stainless steel were compar...
Towards the goal of providing a continuous process for the solid-state fabrication of carbon nanotube sheets and yarns from carbon nanotube forests, we report the growth of yarnspinnable and sheet-drawable carbon nanotube forests on highly flexible stainless steel sheets, instead of the conventionally used silicon wafers. Sheets and yarns were fabricated from the 16 cm maximum demonstrated fore...
In this paper, we report on the formation of a variety of micro/nano-metric structures on the stainless steel surfaces by single-beam direct femtosecond laser writing. Periodic microgratings of different line widths and period are fabricated on the sample surfaces. Random nanostructures are observed inside the microgratings, when laser pulses with low laser energies are applied on the samples. ...
Laboratory animals were exposed by inhalation for 2 hr/day (acute) or 6 hr/day (four consecutive days, repeated dose) to methyl isocyanate (MIC). Exposures were conducted in stainless steel and glass inhalation exposure chambers placed in stainless steel, wire mesh cages. MIC was delivered with nitrogen via stainless steel and Teflon supply lines. Chamber concentrations ranged from 0 to 60 ppm ...
First air-tolerant effective stainless steel microbial anode obtained from a natural marine biofilm.
Microbial anodes were constructed with stainless steel electrodes under constant polarisation. The seawater medium was inoculated with a natural biofilm scraped from harbour equipment. This procedure led to efficient microbial anodes providing up to 4A/m(2) for 10mM acetate oxidation at -0.1 V/SCE. The whole current was due to the presence of biofilm on the electrode surface, without any signif...
Micro reformers still face obstacles in minimizing their size, decreasing the concentration of CO, conversion efficiency and the feasibility of integrated fabrication with fuel cells. By using a micro temperature sensor fabricated on a stainless steel-based micro reformer, this work attempts to measure the inner temperature and increase the conversion efficiency. Micro temperature sensors on a ...
PURPOSE: The purpose of present paper is to compute the fuzzy reliability of the stainless steel utensil manufacturing unit for the constant failure and repair rates. The effect of variations of fuzzy reliability with time and system coverage factor for a set of failure and repair rates is also studied. METHODOLOGY/APPROACHThe mathematical model of Stainless Steel Utensil Manufacturing Unit has...
We have taken advantage of the native surface roughness and the iron content of AISI 316 stainless steel to directly grow multi-walled carbon nanotube (MWCNT) random networks by chemical vapor deposition (CVD) at low-temperature (1000°C) without the addition of any external catalysts or time-consuming pre-treatments. In this way, super-hydrophobic MWCNT films on stainless steel sheets were obta...
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