A Survey on Lock Screen for User Authentication Method in Android

1973 Motorola makes the first handheld mobile device. A gap was given until current smart phones started coming up in the 90s. Since then, it has been an avalanche of smart phones, with every manufacturer trying to fight for the greater market share. With Android at the helm of all the buzz, nobody gives a thought to the fact that these would resume of one?s identity. Take away somebody?s smartphone, and you have taken away a greater part of his life. This brings us to the whole security aspect of it. The measures which Smartphone manufacturers have taken to ensure their safety probably in the wrong hands still leaves a lot of questions and calls for analysis

Benefits of retailer-supplier partnership initiatives under time-varying demand:a comparative analytical study

This paper aims to help supply chain managers to determine the value of retailer-supplier partnership initiatives beyond information sharing (IS) according to their specific business environment under time-varying demand conditions. For this purpose, we use integer linear programming models to quantify the benefits that can be accrued by a retailer, a supplier and system as a whole from shift in inventory ownership and shift in decision-making power with that of IS. The results of a detailed numerical study pertaining to static time horizon reveal that the shift in inventory ownership provides system-wide cost benefits in specific settings. Particularly, when it induces the retailer to order larger quantities and the supplier also prefers such orders due to significantly high setup and shipment costs. We observe that the relative benefits of shift in decision-making power are always higher than the shift in inventory ownership under all the conditions. The value of the shift in decision-making power is greater than IS particularly when the variability of underlying demand is low and time-dependent variation in production cost is high. However, when the shipment cost is negligible and order issuing efficiency of the supplier is low, the cost benefits of shift in decision-making power beyond IS are not significant

A comparative study of lip print patterns in monozygotic and dizygotic twins

Background: External surface of lips has many elevations and depressions forming a characteristic pattern called lip prints, the study of which is known as cheiloscopy. This is unique for the individuals like in fingerprints.Methods: The present study was conducted in 40 pairs of twins and their families to evaluate the possibility of variation of lip print patterns in twins and their parents to find out any similarity among twins and their families.  The twins were taken as the primary subject and their parents as the secondary subjects.Results: The subjects with congenital lip deformity and any inflammation were excluded from the study. The lip prints were taken on the cello tape and highlighted with the black printer powder of Oddyessy make. the photographs were taken for the permanent record. The prints were studied on Adobe Photoshop 7.0 software and classified under Tsuchihashi classification.Conclusions: Comparison of lip prints showed that they are unique to each individual and among twins revealed that they are similar but not identical and their characteristics resembled either parent. Since the lip print patterns are unique, lip print analysis can be considered as a tool for personal identification

A big data MapReduce framework for fault diagnosis in cloud-based manufacturing

This research develops a MapReduce framework for automatic pattern recognition based on fault diagnosis by solving data imbalance problem in a cloud-based manufacturing (CBM). Fault diagnosis in a CBM system significantly contributes to reduce the product testing cost and enhances manufacturing quality. One of the major challenges facing the big data analytics in cloud-based manufacturing is handling of datasets, which are highly imbalanced in nature due to poor classification result when machine learning techniques are applied on such datasets. The framework proposed in this research uses a hybrid approach to deal with big dataset for smarter decisions. Furthermore, we compare the performance of radial basis function based Support Vector Machine classifier with standard techniques. Our findings suggest that the most important task in cloud-based manufacturing, is to predict the effect of data errors on quality due to highly imbalance unstructured dataset. The proposed framework is an original contribution to the body of literature, where our proposed MapReduce framework has been used for fault detection by managing data imbalance problem appropriately and relating it to firm’s profit function. The experimental results are validated using a case study of steel plate manufacturing fault diagnosis, with crucial performance matrices such as accuracy, specificity and sensitivity. A comparative study shows that the methods used in the proposed framework outperform the traditional ones

Production of Natural Straw-Derived Sustainable Polymer Composites for a Circular Agro-Economy

n this study, attempts were made for the first time to explore theunexploited wheat straw particulates (WSP) as a reinforcement filler withconcentrations up to 100% in a thermoplastic polypropylene (PP) matrix to producea new type of wood plastic composites. The WSP-PP composites were developed bymelt blending using the injection molding technique and were investigated for theirmechanical, structural, and thermal properties. The present study showed low-densitycomposites with densities varying from 0.84−1.04 gm/cc. Compared to virginpolypropylene, WSP-PP composites showed enhanced impact strength, improvedflexural strength and moduli, and lower water absorption. With increasing WSPconcentration, the mechanical strength increases, and at 20−30% filler concentration,the composite showed a maximum tensile strength of 27.21 ± 0.67 MPa and flexuralstrength of 44.48 ± 0.48 MPa. The maximum impact strength of WSP-PP composites(2.04 ± 0.11 kJ/m2) was recorded at 40% filler concentration along with lower waterabsorption (1.67%). The addition of WSP was found to decrease the thermal conductivity of the WSP-PP composites. The findingsof this study confirmed the scope of wheat straw as a potential cellulosic reinforcing filler for manufacturing a new class of greencomposites of high-performance characteristics which could be explored and beneficial for electrical applications, civil infrastructure,automotive parts, etc. Further, the utilization of this inexpensive raw material for the development of composites leads to a reductionin the practice of open straw burning in fields, thereby causing a decrease in CGH emissions. Thus, the realization of this innovativework will contribute to achieving the United Nations’ sustainable development goals with a sustainable approach toward building acircular economy.

On the optical properties of Ag^{+15} ion-beam irradiated TiO_{2} and SnO_{2} thin films

The effects of 200-MeV Ag^{+15} ion irradiation on the optical properties of TiO_{2} and SnO_{2} thin films prepared by using the RF magnetron sputtering technique were investigated. These films were characterized by using UV-vis spectroscopy, and with increasing irradiation fluence, the transmittance for the TiO_{2} films was observed to increase systematically while that for SnO_{2} was observed to decrease. Absorption spectra of the irradiated samples showed minor changes in the indirect bandgap from 3.44 to 3.59 eV with increasing irradiation fluence for TiO_{2} while significant changes in the direct bandgap from 3.92 to 3.6 eV were observed for SnO_{2}. The observed modifications in the optical properties of both the TiO_{2} and the SnO_{2} systems with irradiation can be attributed to controlled structural disorder/defects in the system.Comment: 6 pages, ICAMD-201

The aetiological profile of new onset palpitations in natives of Western Himalayas: a cross sectional observational study

Background: Palpitation is a common presenting complaint in out patient department. Etiological profile of such patients has not been studied in the recent past. The aim of the study was to study the aetiological profile of patients with new onset palpitations in North Indian tertiary health care centre.Methods: 130 consecutive patients of new onset palpitations were enrolled in the study and the aetiological profile of palpitation was evaluated using detailed history, examination and investigations.Results: The study group had 53% female and 47% male with a ratio of 1.13:1. Majority of the patients in the age group of 18-29 years. The mean age was 32.04+15.14 years. Most common symptom associated was shortness of breath seen in 17% patients. Of the 130 patients 43.8% of patients had cardiac aetiology, 35.38% psychiatric and 20% had miscellaneous aetiology. Among cardiac aetiology, arrhythmias were most common. PSVT was encountered in 15.4% and AF in 13.1%of the total patients. Psychiatry causes were observed in 35% of patients. In psychiatric causes 71.7% patients had panic attack whereas 28.2% patients had generalised anxiety disorder (GAD). In third group of miscellaneous causes which was 20% of total 6.9% had anaemia, 10% hyperthyroidism and 3.8% were on beta agonists.Conclusions: Palpitation is a presenting symptom of various diseases. The cause can be easily ascertained in most of the patients by a good history and examination; serious cardiac diseases require special investigation. Palpitation as a symptom should not be overlooked the underlying cause must be identified; this can be a helpful clue to improve patient outcome

Electronic structure studies of Fe- ZnO nanorods by x-ray absorption fine structure

We report the electronic structure studies of well characterized polycrystalline Zn_{1-x}Fe_xO (x = 0.0, 0.01, 0.03, and 0.05) nanorods synthesized by a co-precipitation method through x-ray absorption fine structure (XAFS). X-ray diffraction (XRD) reveals that Fe doped ZnO crystallizes in a single phase wurtzite structure without any secondary phase. From the XRD pattern, it is observed that peak positions shift towards lower 2\theta value with Fe doping. The change in the peak positions with increase in Fe contents clearly indicates that Fe ions are replacing Zn ions in the ZnO matrix. Linear combination fittings (LCF) at Fe K-edge demonstrate that Fe is in mixed valent state (Fe3+/Fe2+) with a ratio of ~ 7:3 (Fe3+:Fe2+). XAFS data is successfully fitted to wurtzite structure using IFEFFIT and Artemis. The results indicate that Fe substitutes Zn site in the ZnO matrix in tetrahedral symmetry.Comment: 7 pages, 5 figures, 2 tables, regular articl