Intermolecular Vibrations in Liquid Secondary Chlorides

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/69573/2/JCPSA6-52-8-4316-1.pd

Variación en la morfología de semillas y parámetros de aceites seleccionados de lilas india (Azadirachta indica A. Juss.) de diferentes zonas agroclimáticas de Tamil Nadu, India

Tamil Nadu, in southern India, has the second-largest number of neem trees in the country. The oil from the seeds has high economic significance for cottage industries in the region. This paper examines 28 Candidate Plus Trees (CPTs) selected from six agroclimatic zones in Tamil Nadu which exhibit exceptional traits such as superior growth and other desirable characteristics. We aimed to understand seed morphology variations and physicochemical properties in the oil across different regions. Significant differences were observed for morphometric traits. Fruit production correlated negatively with rainfall. 100-seed kernel weight and seed length correlated with oil percentage. Rainfall influenced seed breadth and pericarp weight. Clustering using morphological characters did not group genotypes from the same region; while soil type could distinguish them. Correlation helped us determine the prominent features which influence the traits of interest, which can be useful for breeding programs, cultivation practices, and the development of neem-based products in Tamil Nadu and beyond.Tamil Nadu, en el sur de la India, tiene el segundo mayor número de árboles de lilas india del país. El aceite de las semillas tiene una gran importancia económica para las industrias artesanales de la región. En este trabajo se examinan 28 árboles Candidate Plus (CPT) seleccionados de seis zonas agroclimáticas en Tamil Nadu, que exhiben rasgos excepcionales como un crecimiento superior y otras características deseables. Nuestro objetivo era comprender las variaciones de la morfología de las semillas y las propiedades fisicoquímicas del aceite en diferentes regiones. Se observaron diferencias significativas para los rasgos morfométricos. La producción de frutos se correlacionó negativamente con las precipitaciones. El peso de 100 semillas y granos y la longitud de la semilla se correlacionaron con el porcentaje de aceite. Las lluvias influyeron en el ancho de la semilla y el peso del pericarpio. El agrupamiento utilizando caracteres morfológicos no agrupó genotipos de una misma región, mientras que el tipo de suelo pudo distinguirlos. La correlación nos ayudó a diseccionar las características prominentes que influyen en las características de interés, que pueden informar los programas de reproducción, las prácticas de cultivo y el desarrollo de productos a base de neem en Tamil Nadu y más allá

Multi-scale modelling to estimate spall parameters in metallic single crystals

Modeling dynamics fracture in materials involves usage of hydrodynamic codes which solve basic conservation laws of mass, energy and momentum in space and time. This requires appropriate models to handle elastic-plastic deformation, equation of state, material strength, and fracture. Nucleation and Growth (NAG) damage model is a micro-physical model which computes amount of damage in the material by accounting for phenomena like nucleation, growth and coalescence of voids or cracks. The NAG model involves several material model parameters, such as nucleation threshold, growth threshold, etc. Traditionally these parameters are fitted to experimental void volume distributions. In the present paper we fit these parameters to molecular dynamics (MD) simulations of void nucleation and growth and use the fitted parameters in hydrodynamic simulations in a multi-scale computational approach. Cubic metallic single crystals are subjected to isotropic deformation and the nucleation of voids and their growth were post-processed from the simulations. These results are used in an in-house Particle Swarm Optimization (PSO) code to obtain NAG parameters for materials of our interest. Using these parameters in a 1D hydrodynamic code developed in-house, fracture parameters such as spall strength and thickness are obtained. The results are validated with published experimental data for Mo, Nb and Cu which have been simulated using the multi-scale model. This paper describes the application of the multi-scale model to obtain the NAG fracture model parameters of Al and its spall data. The results are compared with published experimental results in single crystal Al.Comment: 8 pages, 10 figures, 2 table

An account on light-fishing for the Carangid

The article reports on an accidental adoption of light fishing for the Carangid, Selar crumenophthalmus at Trivandrum coast of Kerala. Fishes enticed by the light to the surface were caught by employing the type of hooks and line known locally as 'achil'. A modest estimate of these catches during the fortnight goes well beyond 2,000 tonnes