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2 2014

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Latitude error in compass deviation. Mathematical method to determine the latitude error in magnetic compass deviation

Basterretxea I. I., Vila- Muñoz J. A., Perez -Labajos C. A.

Polish Maritime Research

2014

nr 3

25--31

This article aims to provide the seafarer with a tool to calculate the deviation for a righted ship in any geographical position using only the information available on board. In this way the accidental errors in the deviation card are reduced and the latitude error is made negligible. Moreover, an experimental application of this method is carried out on board a tanker to compare the latitude error in different positions at sea.

Solubility of butylated hydroxytoluene (BHT) in aqueous and alcohol sulutions from 293.15 to 313.15 K

Baluja S., Bhesaniya K., Bhalodia R., Chanda S.

International Letters of Chemistry, Physics and Astronomy

2014

Vol. 9

48--58

The solubility of Butylated hydroxyl toluene in aqueous and alcohol solutions were determined at different temperatures (293.15 to 313.15) K. Using Van’t Hoff and Gibb’s equations, some thermodynamic functions such as Gibbs energy, enthalpy and entropy of dissolution, and of mixing of Butylated hydroxyl toluene in aqueous and alcohol solutions, were evaluated from solubility data. The solubility was greater in butanol and minimum in water. The enthalpies, entropy and Gibb’s energy of dissolution were positive for all solvents.