The study is focused on the determination of most effective chemical leaching process for simultaneous demineralization/deashing and desulfurization subbituminous coal from Bogovina Basin. Coal was treated 30 min, at different temperatures, using variable concentrations hydrochloric, nitric, acetic citric acids; hydrogen peroxide, mixture peroxide nitric acid (pH 2), as well by stepwise (nitric...

Abstract The metal retention behaviors of several simulated radiolysis products on zirconium were investigated, and it was found that acid phosphate product HDEHP has the greatest effect. effects extraction nitric concentration, temperature behavior also investigated. results showed forms complexes with resulting in organic phase. Nitric concentration change morphology thus affecting behavior. ...

Colorless when pure, older samples tend to acquire a yellow cast due to the accumulation of oxides of nitrogen. If the solution contains more than 86% nitric acid, it is referred to as fuming nitric acid. Fuming nitric acid is characterized as white fuming nitric acid and red fuming nitric acid, depending on the amount of nitrogen dioxide present. At concentrations above 95% at room temperature...

Charles M. Balch, MD, Professor of Surgery, Oncology and Dermatology, Johns Hopkins Medicine, Baltimore, reviewed the current version of the melanoma staging as well as new data on staging and prognosis contained in the 2008 version of the American Joint Committee on Cancer (AJCC) Melanoma Staging Schema. The final version of the melanoma staging criteria are embargoed until May 2009 and implem...

MOTIVATION To make effective use of the vast amounts of expressed sequence tag (EST) sequence data generated by the Merck-sponsored EST project and other similar efforts, sequences must be organized into gene classes, and scientists must be able to 'mine' the gene class data in the context of related genomic data. RESULTS This paper presents the Merck Gene Index browser, an easily extensible,...