A Review of Various Security Techniques in Cloud computing

Cloud computing is the major area of research. In this paper our aim is to study the existing literature of various security algorithms in cloud computing. So, Security is an important factor in cloud computing for ensuring clients data is placed on the secure mode in the cloud. Data must not be stolen by the third party so authentication of client becomes a mandatory task. In this paper, we discuss a number of existing techniques used to provide security in the field of cloud computing on the basis of different parameters

Integrability and L1L^1-convergence of Rees-Stanojević sums with generalized semi-convex coefficients of non-integral orders

summary:Integrability and $L^{1}-$convergence of modified cosine sums introduced by Rees and Stanojević under a class of generalized semi-convex null coefficients are studied by using Cesàro means of non-integral orders

Effects of metal contaminated soils on Eisenia fetida (Savigny) at Ludhiana (Punjab), India

The soil in the vicinity of stream of Buddah Nullah in Ludhiana, Punjab has been found to be contaminated with heavy metals. The objective of this paper was to conduct studies with earthworm Eisenia fetida (Savigny) exposed to five soil samples collected from different sites around the stream of Buddah Nullah, since no such work has been done using earthworm as bio- indicator of soil pollution in that area to check the hazardous effects of heavy metals on soil organisms. Metal levels were recorded higher in contaminated soil samples than threshold concentration in soil of campus field. Adult E. fetida were exposed for a period of 80 days to evaluate the effects of elevated levels of heavy metals i.e.0.29 ppm, 4.18 ppm and 2.29 ppm for cadmium, lead and nickel respectively on survival, growth, morphology and reproduction. Significant effects were observed on survival, growth and reproduction of the tested organisms along with various morphological abnormalities such as tail shedding, body fragmentation and extrusion of coelomic fluid. But no such deformity was observed in worms reared in reference soil of university campus field. Detrimental effects on rates of cocoon production and hatchling emergence were observed and a significant delay was also recorded in production of cocoons and emergence of hatchlings. Results of the study indicated that reproductive end points were more sensitive to elevated metal levels in contaminated soil than survival or weight change

Analyzing Three Different Tuning Strategies for Random Forest Hyperparameters for Fraud Detection

Technology is advancing rapidly, and more tasks are becoming online than ever. Along with the benefits comes the disadvantages of this great advancement. While online services relieve from the struggle of in person activities, it also puts you on the risk of getting deceived by the fraudsters. This paper aims to detect the fraudulent transactions made online from a bank using a synthetically produced dataset. A random forest model has been trained to predict the fraudulent transactions. To achieve the best performance, the hyperparameters of the model have been tuned using three different tuning methods. As it turns out, grid search proved to be the best tuning strategy in terms of the mean cv score, precision, recall, f1-score and accuracy. It only lacked in providing the best run time, where Bayesian Optimization scored well than the others

Comparative study on phase changing material for refrigeration effect for milk chilling

 In developed countries the milking collection is done to process in various diary plants situated far away from production areas.  There is a problem of cool chain management, which, generally is absent at farm levels.  To manage the cool chain in milk transportation system right from farm level it is required that some locally available techniques/materials should be selected and used for milk chilling.  The objective of current study is to ascertain mechanism for chilling of milk at farm immediately after milking.  The experiments were conducted and the cooling performance was evaluated by noting down the drop in temperature with respect to time using mercury thermometer.  The respective regression equation and R2 value were obtained for every run of the experiment.  It was observed that the relation between temperature drop and time was significant for coolant to product ratio of 1:3 & 1:2 under insulated condition (

Air drying kinetics and quality characteristics of oyster mushroom (Pleurotus ostreatus) influenced by osmotic dehydration

The study on osmotic pretreatment of oyster mushrooms was carried out in order to remove the moisture prior to further mechanical drying.  Three salt concentration level (10, 15 and 20 g/100 g), two temperature levels of osmotic solution (30 and 45°C) and constant solution to mushroom ratio of 10 (w/v) were selected and the observations on water loss and solid gain were taken at an interval of 30 min up to 300 min.  The osmotically pretreated samples were further dried up to its equilibrium moisture content in a tray drier at 60°C and experimental data were fitted successfully using Page and Henderson & Pabis model.  The osmo-convective dehydrated samples were evaluated for its quality parameters i.e. color (L, a, b, ∆E, C* and h°), rehydration ratio and sensory attributes (flavor, appearance, texture and overall acceptability).  The water loss from and solid gain by the mushroom sample increased non-linearly with the duration of osmosis at all concentrations and both were higher in the initial period of osmosis than the later period.  Further, both increased with increasing salt concentration and osmosis solution temperature.  Samples pretreated in salt of 20 g/100 g at solution temperature of 45°C showed lower drying rate due to deposition of salt molecules on outer surface of mushroom tissues.  The analysis of variance (ANOVA) revealed that among the osmosis pretreatment variables, the concentration has the most significant effect on all the selected quality parameters whereas the interaction of solution temperature and salt concentration witnessed maximum effect on color and rehydration ratio.Keywords: oyster mushrooms, osmotic dehydration, water loss, solid gain, drying, qualit

Fashionline: CSR case of a UK fashion retailer

This paper presents findings from a corporate social responsibility (CSR) case-study of a UK fashion retailer informed through 22 multi-level internal and 5 external semi-structured interviews. Our research explores the relationship between various stakeholders and their perceptions of CSR issues. Sixteen themes emerge. We find disparity in CSR perceptions at different levels of organization and in views of consumers. Our recommendations are that the UK fashion retailer needs to – better understand normative purpose of CSR and in doing so balance social and environmental factors more equally; engage more widely at an early stage with broader stakeholders (global supply chain; consumers, employees, local populations, regulators, industry players); and better communicate (at different levels internally) along with integrate (external policy makers and with industry) design and implementation of CSR strategies. The authors conclude a gap remains for better CSR frameworks for the UK fashion retailer

Comparison of Detection Rate of Root Canal Orifices of Maxillary First Molar Using Various Techniques: An in-vivo Study

Objective: To compare the detection rate of root canal orifices of maxillary first molar by various techniques in the Indian population. Material and Methods: A total of 50 maxillary 1st molar cases were selected and sequentially divided into four groups: Group I: Naked eye; Group II: Surgical loupe; Group III: Surgical operating microscope; and Group IV: Fluorescein sodium dye. After access opening, the number of root canal orifices was detected in all cases with these methods. Results: By naked eye and surgical loupe, a total of 171 root canal orifices were detected, by a surgical operating microscope, 176, and by fluorescein sodium dye, 177 root canal orifices were detected. The detection rate of root canal orifices is as follows: Group I (96.61%) = Group II (96.61%) < Group III (99.44%) < Group IV (100%) and detection rate of MB-2 canal orifices Group I (40%) = Group II (40%) < Group III (50%) < Group IV (52%). No significant difference in the number of canal orifices detected could be seen for any of the comparisons. No significant difference was observed between the naked eye and surgical loupe techniques. Although the surgical operating microscope detected more root canal orifices, it did not have a significantly higher detection than the other two techniques. Conclusion: No significant difference was seen among various methods. However, the use of a surgical operating microscope and fluorescein sodium dye increased the detection rate of root canal orifices