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针对Hadoop Yarn资源调度问题,为提高集群作业执行效率,提出一种基于蚁群算法与粒子群算法的自适应Hadoop资源调度算法SRSAPH.SRSAPH中,通过Hadoop Yarn跳通信机制获取负载、内存、CPU速度等属性信息初始化信息素矩阵;同时,将粒子群算法的自我认知能力与社会认知能力引入到蚁群算法,提高算法的收敛速度;此外,根据蚁群算法全局最优解的波动趋势动态调整信息素挥发系数,提高解的...
Yarn strength modelling and prediction has remained as the cynosure of research for the textile engineers although the investigation in this domain was first reported around one century ago. Several m...
Continuous hard protective layers on soft substrates working under elastic deformation conditions are prone to uncontrolled cracking and detaching from the substrate during bending and straining. Impl...
This paper presents an original system to measure yarn diameter using coherent optical signal processing to eliminate the influence of hairiness over the output signal. The system consists of optical ...
Knitted glass fabrics as a kind of reinforcement have received great attention in the compositesindustry in recent years. Glass yarns, however, are very difficulttobeprocessedin the knitting process d...
In this research the effects of the yarn balloon angle on yarn hairiness and other yarn propertieswas investigated. The yarn balloon was changed by use of fivedifferentweightsof C type travellers. Th...
Applying the software environment Statistica for neural networks allowed the use of artificial neural networks and regression analysis to predict the physical properties of unknotted joints of yarn ...
To improve the aesthetic appeal of pantyhose, the design and development of a new product and a wear experiment were carried out. The sheerness and visual impression of circular plain knitted fabric...
we calculated numerically compressible airflows past a yarn in a thin pipe in order to operate yarn using both a circular jet and an annular jet. We proposed the way to arrange air drag coefficients o...
The present study is concerned with numerical simulation of compressible air flow in a yarn duct of an interlacer and the relation between air flow and yarn entanglement. A nozzle of circular pipe of...
The path followed by and the tension generated along a yarn under a false-twist process using an enlarged model unit of a doubly stacked multi-disk spindle are measured and analyzed on the basis of a...
A realizable k-ε turbulence model was adopted to study the airflow characteristics inside the two nozzles including the slotting-tube of Murata air-jet spinning (MJS). Actions of the two nozzles and ...
In this paper, the helix number of hard twisted yarn was analyzed by both theory and experiment. The shape of hard twisted yarn was supposed as the helix and the helix number was examined from the dyn...
An investigation of yarn motion in yarn ducts with various cross-sectional shapes and its effects on the characteristics of interlaced yarn is reported. Seven interlacers, which are different in the...
This study deals with the effect of cross-sectional shape of yarn duct of interlacer on the performance of interlaced yarn and aims at finding the interlacers with better performance. The performance...

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