16,792 research outputs found
TORQUE TRANSMISSION CAPABILITIES OF ADHESIVELY BONDED TUBULAR LAP JOINTS FOR COMPOSITE DRIVE SHAFTS
No full textThe stresses and torque transmission capabilities of adhesively bonded circular, hexagonal and elliptical lap joints were analyzed by the three-dimensional finite element method and compared with the experimental results. The adherends of the joints were composed of carbon fiber epoxy composite shafts and steel shafts. In calculating the torque transmission capabilities, the linear laminate properties of the composite material and the nonlinear shear properties of the adhesive were used. Using this method, the torque transmission capabilities of the adhesively bonded lap joints could be calculated accurately, except the circular and the hexagonal single lap joints whose adherends were failed by bulging when the composite adherends had small stacking angles from the shaft axis. The experiments revealed that the hexagonal joint had the best torque transmission capability among the single lap joints, and the double lap joint had better torque transmission capability than the single lap joint. The torque transmission capability of the hexagonal single lap joint was found to be comparable to that of the circular double lap joint.
Complete Recovery of Spinal Cord Injury Without Radiographic Abnormality (SCIWORA) Syndrome and Traumatic Brachial Plexopathy in a Young Infant Falling From 30-feet-High Window.
No full textTHROUGHPUT UPPER-BOUNDS FOR OPEN MARKOVIAN QUEUING-NETWORKS WITH BLOCKING
No full textWe present a simple but effective decomposition method which yields tight throughput upper bounds for open Markovian finite-buffered queueing networks under any commonly used blocking mechanism. This method is first elaborated on with three specialized network configurations, tandem, split and merge, and then extended to a general configuration. Also shown is that the existing throughput-bounding methods for open queueing networks with blocking can be improved via duality consideration. Computational experiments confirm that our method is superior to all other existing methods
Rhodanobacter fulvus sp nov., a beta-galactosidase-producing gammaproteobacterium
No full textA taxonomic study was carried out on a bacterial strain designated as Jip2(T) isolated from a soil sample mixed with rotten rice straw. It was a Gram-negative, aerobic, motile, and rod-shaped bacterium. It grew well on nutrient agar medium and utilized a fairly narrow spectrum of carbon source. The G+C content of the genomic DNA was 65.3 mol%. The major ubiquinone was Q-8. The major fatty acids were branched fatty acids, especially large amounts of iso C-15:0 and iso C-17:1 omega9c were detected in the cells grown on TSA agar for 24 h. Comparative 16S rDNA study showed a clear affiliation of this bacterium to the genus Rhodanobacter. The 16S rDNA sequence of strain Jip2(T) showed 96.4% sequence similarity to that of Rhodanobacter lindaniclasticus RP5575(T). On the basis of phenotypic characteristics and 16S rDNA sequence analysis, strain Jip2(T) is clearly distinct from Rhodanobacter lindaniclasticus. We propose the name Rhodanobacter fulvus sp. nov. for strain Jip2(T) (=IAM 15025(T) = KCTC 12098(T))
SERVER ASSIGNMENT FOR MULTISTAGE PRODUCTION SYSTEMS WITH FINITE BUFFERS
No full textWe consider a multi-stage production system with finite buffers under the so-called repetitive-service blocking mechanism, modelled by a tandem queueing system with blocking. The objective is to find to which stage each server should be assigned in order to maximize the throughput. For this server assignment problem we first derive a throughput upper bound which is found to be very close to the exact one to be used as a substitute measure. Based on this measure we show that the rules of placing the worst servers from the outermost stages by Yamazaki et al. (1989) for the case of no buffers, are effective for the case with buffers of equal size. For the general case with buffers of different sizes, we propose an algorithm based on the observation that our throughput upper bound can be increased fastest by placing the fastest servers around the smallest buffered stage. Effectiveness of this algorithm as well as the proposed rules are well demonstrated by the extensive computational experiments conducted with a number of test examples ranging up to five stages
The mechanisms of neuronal death produced by mitochondrial toxin 3-nitropropionic acid: the roles of N-methyl-D-aspartate glutamate receptors and mitochondrial calcium overload.
No full textAzonexus caeni sp nov., a denitrifying bacterium isolated from sludge of a wastewater treatment plant
No full textA polyphasic taxonomic study was carried out to determine the taxonomic position of a newly isolated denitrifying bacterium, designated Slu-05(T), which had been isolated from sludge from the main aerobic treatment tanks of a municipal sewage treatment plant. Phylogenetic analysis based on comparative 16S rRNA gene sequencing indicated that strain Slu-05(T) was closely related to Azonexus fungiphilus LMG 19178(T) (96(.)4% sequence similarity), the sole species in the genus Azonexus. Strain Slu-05(T) comprised Gram-negative, motile, non-spore-forming and slightly curved rods. The predominant respiratory lipoquinone was Q-8. The major fatty acids were C-16:1 omega 7c, C-16:0, C-18:1 isomers and C-10:0 3-OH. The G+C content of the genomic DNA was 65.6 mol%. The results of DNA-DNA hybridization (15.6 %) together with phenotypic determination showed that strain Slu-5(T) could be distinguished from A. fungiphilus. Moreover, some phenotypic properties concerning enzyme activity, the substrates utilized as carbon sources and growth conditions distinguish strain Slu-5(T) from A. fungiphilus. On the basis of the results obtained in this study, Slu-05(T) (=DSM 17719(T) =KCTC 12530(T) = CCBAU 10199(T)) is the type strain of a novel species of Azonexus, for which the name Azonexus caeni sp. nov. is proposed
Enhanced treatment of coke plant wastewater using an anaerobic-anoxic-oxic membrane bioreactor system
No full textSuccessful Resuscitation after sudden death in a one year old infant who sustained a blunt chest injury after a fall from 10 m.
No full textEffects of amphetamine on the AMPA-mediated synaptic activity and the expression of AMPA receptor subunit 2 of brain neurons.
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