The Indo-West Pacific species, Neomerinthe erostris (Alcock 1896), originally described as Scorpaena erostris, is redescribed as a senior synonym of Scorpaena gibbifrons Fowler 1938, N. rotunda Chen 1981, and N. bathyperimensis Zajonz & Klausewitz 2002. Although the latter three nominal species have been regarded as valid species and N. erostris has not… (More)
The first record of Scorpaenopsis ramaraoi from Indian coast is reported based on three specimens ranging from 137 to 148 mm standard length. Specimens were collected from Digha coast, West Bengal state, northern most part of east coast of India on the bank of Bay of Bengal. This species is distinguished from its closest relatives by having no extra spine… (More)
In the present draft, we propose the computational approach to generalized ratio type estimator of population mean of the main variable under study using auxiliary information. The expressions for the bias and mean square errors (MSE) have been obtained up to the first order of approximation. The minimum value of the MSE of the proposed estimator is also… (More)
Kalpakkam coast is an important strategic region reflecting the general diversity of Tamil Nadu (TN) coastal waters. In a recent inventory of fish survey conducted along this coast, we discovered 316 coastal fishes, of which >150 are reef fishes. The present paper describes the report of eleven reef-associated fishes new to the TN coast of Bay of Bengal… (More)
Different structures of Index-guiding Photonic crystal fibre are designed. The attractive vectorial Finite Element Method simulation technique is used to analyse such PCFs by taking suitable fibre parameter i.e. air hole diameter (d), pitch (Λ) and air core diameter (d´).Few important properties such as variation of refractive index with wavelength and nice… (More)
The paper focuses on the optimality analysis of machine interference with spares less than number of servers. The N-R method has been used to optimize the total cost function. Numerical demonstration has also been presented to exhibit the use of the model.
A probabilistic inventory model for conditional credit period with exponential demand, non-zero lead time and multiple storage facility has been developed. The behaviour of total expected cost (TEC) has been examined and the use and application of the model is demonstrated with the help of a numerical example.