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一种Hadoop Yarn的资源调度方法研究
资源调度 蚁群算法 粒子群算法 Hadoop Yarn
2014/11/15
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 Using Fuzzy Expert System
Yarn Strength Modelling Fuzzy Expert System
2009/7/21
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...
Elastic Yarn Tensioner with a Noncontinuous Antiwear Nanocomposite Pattern
yarn tensioner nanocomposite nanoparticles polymer substrate
2009/6/17
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...
Yarn Irregularity Parameterisation Using Optical Sensors
yarn parameterisation optical sensors signal processing
2009/6/17
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 ...
Effect of Yarn Parameters on the Knittability of Glass Ply Yarn
knittablility glass ply yarn twist level sizing
2009/6/15
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...
Effect of Balloon Angle on the Hairiness and other Yarn Properties of Polyester Ring Spun Yarn
balloon angle yarn hairiness yarn properties traveller weight
2009/6/15
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...
Prediction of Properties of Unknotted Spliced Ends of Yarns Using Multiple Regression and Artificial Neural Networks. Part I: Identification of Spliced Joints of Combed Wool Yarn by Artificial Neural Networks and Multiple Regression
combed wool yarn pneumatically spliced joints additive quantities
2009/6/15
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 ...
Effects of Novel Color Polyurethane Yarn on the Aesthetics of Legs in Pantyhose
Aesthetic property Anisotropic property Color polyurethane yarn
2009/5/8
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...
Air Drag Force on a Yarn and Use of a Coaxial Jet for Yarn Operation
Yarn operation Air drag force Coaxial circular jet Coaxial annular jet Power-saving
2009/5/5
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...
Characteristics of Compressible Air Flow in an Interlacer and Yarn Entanglement
Interlacer Numerical calculation Compressibility Limited Mach number
2009/4/29
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...
Analyzing the Path and the Tension of a Yarn under a False-twist Process Using a Doubly Stacked Multi-disk Spindle
Textured yarn Doubly stacked multi-disk spindle Friction twisting
2009/4/21
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...
Numerical Study on the Principle of Yarn Formation in Murata Air-Jet Spinning
Swirling airflow Fibers Nozzle Yarn MJS
2009/4/21
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 ...
Analysis of the Helix Number of Hard Twisted Yarn in Cotton Crepe Fabrics
Helix number Hard twisted yarnTwisting moment Crepe fabric
2009/4/21
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...
Yarn Motion in Interlacers with Various Cross-Sectional Shapes of Yarn Duct
Interlacer Shapes of yarn duct Interlaced yarn Observation of yarn motion
2009/4/15
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...
Effects of Cross-Sectional Shape of Yarn Duct of Interlacer on the Properties of Interlaced Yarn
Interlacer Interlaced yarn Number of tangles Strength of tangles
2009/4/15
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...