Securing Internet Protocol (IP) Storage: A Case Study

Storage networking technology has enjoyed strong growth in recent years, but security concerns and threats facing networked data have grown equally fast. Today, there are many potential threats that are targeted at storage networks, including data modification, destruction and theft, DoS attacks, malware, hardware theft and unauthorized access, among others. In order for a Storage Area Network (SAN) to be secure, each of these threats must be individually addressed. In this paper, we present a comparative study by implementing different security methods in IP Storage network.Comment: 10 Pages, IJNGN Journa

Self-tuning of threshold for a two-state system

A two-state system (TSS) under time-periodic perturbations (to be regarded as input signals) is studied in connection with self-tuning (ST) of threshold and stochastic resonance (SR). By ST, we observe the improvement of signal-to-noise ratio (SNR) in a weak noise region. Analytic approach to a tuning equation reveals that SNR improvement is possible also for a large noise region and this is demonstrated by Monte Carlo simulations of hopping processes in a TSS. ST and SR are discussed from a little more physical point of energy transfer (dissipation) rate, which behaves in a similar way as SNR. Finally ST is considered briefly for a double-well potential system (DWPS), which is closely related to the TSS

An Experimental Investigation of Performance and Emission in Ethanol Fuelled Direct Injection Internal Combustion Engines with Zirconia Coating

This article presents the experimental investigation of use of neat ethanol (95% Ethanol +5% water) as a fuel in a four stroke single cylinder engine as regards to performance and emission characteristics. Two different ignition modes viz. (i) High Compression (16.5:1) Spark Ignition with high-pressure manifold injection of ethanol and (ii) Ultra High Compression (44.4:1) Compress Ignition with Direct Injection of ethanol have been experimentally analyzed with and without zirconia surface coating. As a benchmark, the results have been compared with data from the same engine run with diesel as fuel. In the first mode, the brake thermal efficiency with ethanol as fuel was found almost equal to that of diesel. However, the emissions were found to be significantly lower. In the second mode, the brake thermal efficiency was found to fall in between the diesel and ethanol manifold injection modes of operation. More significantly, the cost of running the engine was found to be lower than the operating cost incurred by using diesel. This assumes importance in the wake that ethanol can be obtained from non-fossil resources

Kriging models for aero-elastic simulations and reliability analysis of offshore wind turbine support structures

This PhD research is funded by Lloyd’s Register Group Services Ltd., Aberdeen. Sriramula’s work within the Lloyd’s Register Foundation Centre for Safety and Reliability Engineering at the University of Aberdeen. The Foundation helps to protect life and property by supporting engineering-related education, public engagement and the application of research.Peer reviewedPostprin

Management of Gouty Arthritis with special reference to Vatarakta - A Case Report

Gouty Arthritis has now become a common disease condition which we deal in Ayurveda, but a proper treatment protocol is not followed in many cases. The case reported here was as a result of improper diet and lack of exercise which resulted in an increase serum uric acid level and joint inflammation. The treatment was given at IPD level diagnosing it as Gambhira Vatarakta with valid Chikitsa Siddhanta. This case report provides us guidelines that even a chronic gouty arthritis with a very high serum uric acid can be treated as per Vataraktha Chikitsa Siddhanta in Ayurveda

Consumer Behavior in Selection of Buying Source of Siddha Medicine in Tamilnadu, India from the Perspective of Age

With the increasing usage of traditional medicines as complementary alternative therapy, possibilities that would ensure its successful integration into the public domain of health care services needs to be evaluated. India is one of the countries with rich traditional knowledge base. Its ethnic ethno-medical practices had paved way for the evolution of several indigenous systems of medicine. Siddha is one of the oldest systems of medicine in India. Siddha holds close association with nature and has been validated in the laboratory of life, even before the advent of formal modern western system of medicine. This paper discusses the interrelations between usage of Sidhha as complementary alternative medicine and its implications on public health care related issues. We explore the impact of age of respondents in the public domain as a criterion in relation to selection of buying source of Siddha medicine in Tamilnadu, India

Current Trends in Usage of Traditional System of Medicine in Tamilnadu, India - From the Perspective of Occupation

Socio-economic parameters have significant impact on consumer’s attitude towards the usage of traditional system of medicine in Tamilnadu, India. Though traditional systems of medicine have made significant contributions towards fulfilling healthcare needs of the people in the past, impacts of modern medicine have been so large that traditional medicine witnessed a dark period in India. While such practices are common in the rural/ remote areas, off late, change in the trend with respect to the usage of Siddha medicine as complementary alternative therapy among urban population has been observed. Present study aims to evaluate the resurgence of interest in Siddha medicine among the people working in different sectors (occupation) in Tamilnadu, India

Phase separation and the effect of quenched disorder in Pr0.5Sr0.5MnO3Pr_{0.5}Sr_{0.5}MnO_3

The nature of phase separation in $Pr_{0.5}Sr_{0.5}MnO_3$ has been probed by linear as well as nonlinear magnetic susceptibilities and resistivity measurements across the 2nd order paramagnetic to ferromagnetic transition ($T_C$) and 1st order ferromagnetic to antiferromagnetic transition ($T_N$). We found that the ferromagnetic (metallic) clusters, which form with the onset of long-range order in the system at $T_C$, continuously decrease their size with the decrease in temperature and coexist with non-ferromagnetic (insulating) clusters. These non-ferromagnetic clusters are identified to be antiferromagnetic. Significantly, it is shown that they do not arise because of the superheating effect of the lower temperature 1st order transition. Thus reveals unique phase coexistence in a manganite around half-doping encompassing two long-range order transitions. Both the ferromagnetic and antiferromagnetic clusters form at $T_C$ and persist much below $T_N$. Substitution of quenched disorder (Ga) at Mn-site promotes antiferromagnetism at the cost of ferromagnetism without adding any magnetic interaction or introducing any significant lattice distortion. Moreover, increase in disorder decreases the ferromagnetic cluster size and with 7.5% Ga substitution clusters size reduces to the single domain limit. Yet, all the samples show significant short-range ferromagnetic interaction much above $T_C$. Resistivity measurements also reveal the novel phase coexistence identified from the magnetic measurements. It is significant that, increase in disorder up to 7.5% increases the resistivity of the low temperature antiferromagnetic phase by about four orders

Ultimate loads and response analysis of a monopile supported offshore wind turbine using fully coupled simulation

This PhD research is funded by Lloyd’s Register Group Services Ltd., Aberdeen. Sriramula’s work within the Lloyd’s Register Foundation Centre for Safety and Reliability Engineering at the University of Aberdeen is supported by Lloyd’s Register Foundation. The Foundation helps to protect life and property by supporting engineering-related education, public engagement and the application of research. We would also like to acknowledge the constant assistance provided by Jason Jonkman on using FAST.Peer reviewedPostprin