The Visual Secret Sharing Scheme Based on the Rgb Color System

The visual secret sharing (VSS) scheme is a method to maintain the confidentiality of a se-cret image by sharing it to some number participants. A (k, n) VSS divides the secret images into n parts, that are called shadows ; to recover the secret back, k shadows should be stacked. Some methods have been developed to implement VSS for color images. However, the methods are only suitable for images with limited number of colors. When more colors are used, the resulted stacked shadow image becomes unclear. Besides that, the size of the shadows becomes bigger as more colors are used. We develop a new method implementing the VSS using the RGB color system. Using our method, the problem related to the unclear stacked shadow image can be overcome

Selecting instruments for assessing psychological wellbeing in Afghan and Kurdish refugee groups

Background. Afghan and Iraqi refugees comprise nearly half of all those currently under United Nations protection. As many of them will eventually be resettled in countries outside the region of origin, their long term health and settlement concerns are of relevance to host societies, and will be a likely focus for future research. Since Australia and New Zealand have both accepted refugees for many years and have dedicated, but different settlement and immigration policies, a study comparing the resettlement of two different refugee groups in these countries was undertaken. The purpose of this article is to describe the instrument selection for this study assessing mental health and psychological well being with Afghan and Kurdish former refugees, in particular to address linguistic considerations and translated instrument availability. A summary of instruments previously used with refugee and migrant groups from the Middle East region is presented to assist other researchers, before describing the three instruments ultimately selected for the quantitative component of our study.Findings. The Kessler-10 Psychological Distress Scale (K10), General Perceived Self-Efficacy Scale (GPSE), and Personal Well-Being Index (PWI) all showed good reliability (Cronbach's alphas of 0.86, 0.89 and 0.83 respectively for combined language versions) and ease of use even for pre-literate participants, with the sample of 193 refugees, although some concepts in the GPSE proved problematic for a small number of respondents. Farsi was the language of choice for the majority of Afghan participants, while most of the Kurds chose to complete English versions in addition to Farsi. No one used Arabic or Turkish translations. Participants settled less than ten years were more likely to complete questionnaires in Farsi. Descriptive summary statistics are presented for each instrument with results split by gender, refugee group and language version completed. Conclusion. This paper discusses instrument selection for Farsi and Arabic speaking refugee participants from the Middle East and Afghanistan, concluding that the Kessler-10, GPSE scale and PWI were suitable for use with these groups. Suitable language translations are freely available. Our experience with these instruments may help inform other studies with these vulnerable groups

Taxonomic notes on two endemic species of Oberonia Lindl. from Western Ghats, India

The genus Oberonia is known for its micro floral arrangement. Due to its minute structure, excess of new species are reported. The present paper reveals the synonymization of two recently described species of the genus Oberonia viz. O. saintberchmansii and O. wynadensis under O. anamalayana and O. josephi respectively. The original illustration and live dissected images of the species are provided for easy identification

Numerical modeling of magneto electric co-generator plant for sustainable marine vessel power system

Peer Reviewe

A Pattern Recognition Approach to the Structure Identification of Soil Hydraulic Propertiest

A simple pattern recognition approach to the identification of model structures is described and used to identify structures for the soil water characteristic and soil water dijfusivity, D( e), versus water content relationships of disturbed samples for Bungor series. An asymptotic model and an exponential function were found to be suitable structures for the soil water characteristic and D( e) - e relationship respectively. A comparison with the Least Squares Technique suggests the pattern recognition approach to be a useful alternative in identification of model structure

Internet of Things (IoT) enabled water monitoring system

Water is always a crucial part of everyday life. Due to global environmental situation, water management and conservation is vital for human survival. In recent times, there were huge needs of consumer based humanitarian projects that could be rapidly developed using Internet of Things (IoT) technology. In this paper, we propose an IoT based water monitoring system that measures water level in real-time. Our prototype is based on idea that the level of the water can be very important parameter when it comes to the flood occurrences especially in disaster prone areas. A water level sensor is used to detect the desired parameter, and if the water level reaches the parameter, the signal will be feed in realtime to social network like Twitter. A cloud server was configured as data repository. The measurement of the water levels are displayed in remote dashboard

Regionalization and harmonization in TVET

A transversal skill is one of the skills needed in every type of workplace setting. There is limited information about the perceptions of which transferable skills are needed in the workplace. The objective of this study is to explore the transferable skills among students and lecturers in TVET higher learning institutions in Indonesia and Malaysia. In the present study, transferable skills consist of communication skills, collaboration skills, problem-solving skills, entrepreneurship, and learning to learn skills. A qualitative research was conducted using survey. The five Likert scale questionnaire was distributed to lecturers and students from selected Malaysian and Indonesian universities who have bachelor program in engineering. Based on the analysis outcomes, it is clearly shown that Malaysian university engineering students yielded significantly higher scores on the perceptions of transferable skill acquisition in all measured components compared to their counterparts in Indonesia. Similar patterns of data distribution have been observed in Malaysian and Indonesian engineering students. Based on the lecturers’ perception, Malaysian and Indonesian Engineering Lecturers have comparable perceptions in the aspects of problem solving skills and entrepreneurship skills. In contrast, Malaysian university engineering lecturers gained significantly higher scores on the perception of communication skill, collaboration skill, and learning to learn skill compared to the Indonesian lecturers. The results indicate the need to increase transferable skills of both lecturers and students

Reverse Phase Liquid Chromatography Coupled with Quadra pole- Time of Flight Mass Spectrometry for the Charecterisation of Phenolics from Acacia Catechu (L.f.) Willd.

A rapid method was developed for the identification of phenolics from Acacia Catechu .The analysis ofphenolic compounds was carried out by reversed-phase high-performance liquid chromatography (RPHPLC)coupled to electrospray ionization-time-of-flight mass spectrometry (ESI-Q-TOF-MS). Theaccurate mass data for the molecular ions were processed using the software Mass Hunter workstation (Agilent Technologies), which provided a list of possible elemental formulas by using theMolecular featured extraction editor. The subsequent structure characterization was carried out by atandem mass spectrometric method. Fragmentation behavior of phenolic compounds was investigatedusing ion trap mass spectrometry in negative mode. The total fragmentation of the compound ionleading to other fragments was corroborated by MS–MS. Five phenolic compounds have beenidentified from the methanolic extract of Acacia Catechu

Interpretation of Nuclear Quadrupole Resonance Spectra in Doped La2_2CuO4_4

The nuclear quadrupole resonance (NQR) spectrum of strontium doped La$_2$CuO$_4$ surprisingly resembles the NQR spectrum of La$_2$CuO$_4$ doped with excess oxygen, both spectra being dominated by a main peak and one principal satellite peak at similar frequencies. Using first-principles cluster calculations this is investigated here by calculating the electric field gradient (EFG) at the central copper site of the cluster after replacing a lanthanum atom in the cluster with a strontium atom or adding an interstitial oxygen to the cluster. In each case the EFG was increased by approximately 10 % leading unexpectedly to the explanation that the NQR spectra are only accidentally similar and the origins are quite different. Additionally the widths of the peaks in the NQR spectra are explained by the different EFG of copper centres remote from the impurity. A model, based on holes moving rapidly across the planar oxygen atoms, is proposed to explain the observed increase in frequency of both the main and satellite peaks in the NQR spectrum as the doping concentration is increased