In this paper, we calculate the second virial coefficient for binary mixtures of Ar with CH4 and CO in order to evaluate the performance of equations of state (EOSs). The investigated EOSs are van der Waals (vdW), Redlich-Kwong (RK), Peng-Robinson (PR), Carnahan-Starling–van der Waals (CS-vdW) and Guggenheim-van der Waals (G-vdW) based on van der Waals model. In our work, we also use Dieterici ...

Solubility of high molecular weight n-paraffins in supercritical carbon dioxide has been a matter of interest to many researchers. However, not sufficient solubility experimental data are available although the methods by which the experimental data are obtained have many varieties. Utilizing cubic equations of state is an effective method for solubility prediction of n-paraffins in supercr...

In this work, the solubility of nicotine extracted from tobacco leaves, found in the north of Iran, in supercritical carbon dioxide has been measured. Also the effects of pressure, temperature, extraction dynamic time, and the organic co-Solvent on the amount of nicotine extracted from tobacco leaves have been investigated. It should be stressed that in order to reduce significantly the num...

OBJECTIVE To analyse the performance of opportunistic breast screening in local Well Women Clinics during the 5-year period from 1998 to 2002, with reference to international as well as our own earlier experience (1991 to 1993 to 1995). DESIGN Prospective study. SETTING Well Women Clinics in regional Hong Kong hospitals. PARTICIPANTS Women attending the Well Women Clinics of the Tung Wah ...

............................................................................. ii Acknowledgements ................................................................ iv Dedication ........................................................................... v List of Tables ....................................................................... xi List of Figures .......................................

In this note we extend a Theorem of Kwong and Zettl concerning the inequality Z 1 0 t ju 0 j p K Z 1 0 t juj p 1=2 Z 1 0 t ju 00 j p 1=2 to all ; ; such that = (+)=2 except for the triple: = p ?1, = ?1, = ?1?p. In this case the inequality is false; however u satisses the inequality Z 1 0 t ju 0 j p K 1 (Z 1 0 t juj p 1=2 Z 1 0 t ju 00 j p 1=2 + Z 1 0 t juj p) : 1. Notation. Let I = (a; b), ?1 a...

The prone table machine is a mammographic X-ray system specially designed for use in the stereotactic localisation of breast abnormality. In this study, its clinical usefulness was investigated in terms of duration, success rate, complications, and patients' acceptance of the procedure. During a 5-month period, 79 patients attended the Kwong Wah Hospital for stereotactic-guided biopsy on the pr...