Spherulite size effects in linear polyethylene

Tensile and Physical Properties of Linear Low Density Polyethylene-natural Rubber Composite: Comparison between Size and Filler Types

Linear Low Density Polyethylene-Natural Rubber (LLDPE-NR) composites in the ratio of 70:20 were made with different loadings of nanosilica and micro-scale Palm Oil Fuel Ash (POFA). Linear Low Density Polyethylene grafted with maleic anhydride (LLDPE-g-MAH) of 10 wt% was added as a compatibiliser. The composites were produced by using two-roll mill machine. The tensile properties of the composit...

Power and Sample Size in Linear Mixed Effects Models

Non-isothermal model for nematic spherulite growth.

A computational study of the growth of two-dimensional nematic spherulites in an isotropic phase was performed using a Landau-de Gennes-type quadrupolar tensor order parameter model for the first-order isotropic/nematic transition of 5CB (pentylcyanobiphenyl). An energy balance, taking anisotropy into account, was derived and incorporated into the time-dependent model. Growth laws were determin...

Finite-size effects and optimal test set size in linear perceptrons

Huctuatiolls in the test error are important in thelaming theory of finite-dimensional systems as they represent how well the test error matches the average test emr. By explicitly finding the variance of the test ermr due to randomness present in both the data set and dgonthm for a linear perceptron of dimension n. we are able to address such questions as the optimal test set size. Where exact...

Spherulite crystallization induces Fe-redox redistribution in silicic melt

Rhyolitic obsidians from Krafla volcano, Iceland, record the interaction between mobile hydrous species liberated during crystal growth and the reduction of ferric iron in the silicate melt. We performed synchrotron μ-FTIR and μ-XANES measurements along a transect extending from a spherulite into optically distinct colorless and brown glass zones. Measurements show that the colorless glass is e...