Effects of Aluminium, Sulphur and Vanadium on the Solubility of Graphite in Liquid Iron

The effects of aluminium and sulphur on the solubility of graphite in liquid iron were studied at 1550°C, and that of vanadium at 1350°, 1450° and 1550°C. The activity of carbon is increased by the presence of aluminium or sulphur, while it is decreased by the addition of vanadium. The interaction parameters at a constant concentration N′c of graphite saturation at the above-mentioned temperatures are given as follows : where γc is the activity coefficient of carbon, NX is the molar fraction of the added element

Study on seam carving for image fingerprint

In past several years many image contents are distributed via internet. But illegal copy problem are rise up. Multimedia fingerprint techniques are tools for resist illegal copy. However today collusion attack such as average attack is appeared. Collusion attack is efficient method for breaking copyright protection scheme of image fingerprint. This paper presented an image fingerprint scheme to resistant collusion attack which is average attack especially. Proposed image fingerprint scheme is applied seam carving technique. Experimental results show that proposed image fingerprint scheme was good performance.2012 6th International Conference on Complex, Intelligent, and Software Intensive Systems, CISIS 2012;Palermo;4 July 2012through6 July 201

Image content detection method using correlation coefficient between pixel value histograms

An extraction method for searching for unauthorized copies of an image on the Internet is required in image search to make use of digital watermarks. In this paper, we propose an efficient two-stage image search method for extraction of illegal copies of a target image. The first stage is a pre-search, which searches for candidate of illegal images by some simple method. The next stage is the main search, which extracts embedded copyright information from the candidate and decides whether the image is an illegal copy of the target. In addition, we propose a simple image search method which uses the correlation coefficient between pixel value histograms of images as a pre-search method. The proposed pre-search method is useful because the proposed method is possible to combine with the current extraction technologies of embedded information. The performance of the proposed pre-search method is evaluated through computer simulations. © 2011 Springer-Verlag

Local viscosity change in water near a solid-liquid interface and its extraction by means of molecular rotational diffusion : A molecular dynamics study

The relation between the rotational diffusion (RD) coefficient of water molecules and viscosity, that theoretically are inversely proportional to each other, was examined by using molecular dynamics simulations. In a homogeneous bulk liquid system, both the viscosity calculated from the virial theorem and the experimental one correlated well with the inverse of water RD coefficient at various temperatures. In a heterogeneous system of water between solid walls with different solid-liquid interaction strength, the viscosity distribution was similar to the distribution of the RD coefficient inverse multiplied by density, and this suggests the possibility of extracting nanometer-scale viscosity distribution by RD.Satoshi Nakaoka, Donatas Surblys, Yasutaka Yamaguchi, Koji Kuroda, Tadashi Nakajima, Hideo Fujimura, Local viscosity change in water near a solid–liquid interface and its extraction by means of molecular rotational diffusion – A molecular dynamics study, Chemical Physics Letters, Volume 591, 2014, Pages 306-311, https://doi.org/10.1016/j.cplett.2013.11.047