Dynamic Behaviour of Tension Leg Platform under Impulsive Loading

In the literature on dynamics of tension leg platforms (TLPs), the effect offrequently occurring environmental forces, such as those arising due to wave, wind, current, tide, etc. has given the due consideration. However, less probable forces, such as that arising due to collision ofship with iceberg or any huge sea creature, etc., have not been considered in the study. Such small duration impact forces, usually termed as impulsive forces, may take four possible shapes: (i) rectangular, (ii) sinusoidal, (iii) triangular, and (iv) half-triangular. In the present study, response ofTLP has been obtained for all these four shaped impulsive forces. The result ofthe analyses shows that there is a dramatic change in surge, heave, and yaw responses of TLP due to such forces. In addition, a comparative study to find the most influencing impulsive force out of these four has also been conducted

Enhanced Secure Multi Keyword Top-K Retrieval in Cloud

This research is capable to do cryptography with multi keywords search. This research is target to provide search files from cloud network using multi keywords. This paper is target to provide a security at the maximum level by includes encryption and decryption. The administrator has control of authorization and allowing files to move more secured. Encryption and decryption of files and file names which is used symmetric and asymmetric algorithm respectively. The unique key is generated for every users to protect other user cannot access the files. While implementing this project the user can understand very simple environment. The user can reduce incapable systems in server side process to hold most of the processes. The client side system has used less work for the corresponding task to perform the necessary role like arranging and ranking the files from requested order. This project can apply in various applications for this user friendly

Multifocal primary lymphoma of the cranial vault in a nonimmnunocompromised adolescent

Primary non-Hodgkin lymphoma (NHL) of the skull is extremely rare. The authors report a case in a 19-year-old boy who presented with a progressively increasing scalp mass on background of generalized headache of 6-months duration. Imaging showed multifocal skull vault lesion with intra- and extra-cranial soft tissue masses, causing permeative destruction of underlying skull bone. Further investigation failed to identify any other evidence of systemic lymphoma. Histopathology examination of superficial scalp mass showed low grade non-Hodgkin B cell lymphoma. The precise anatomical location and multifocal nature of the neoplasm occurring in young nonimmunocompromised individual makes this case clinically and radiologically unique

Correlation of FT-IR fingerprint and α-glucosidase inhibitory activity of Salak (Salacca zalacca) fruit extracts utilizing orthogonal partial least square

Salak fruit (Salacca zalacca), commonly known as snake fruit, is used indigenously as food and for medicinal applications in Southeast Asia. This study was conducted to evaluate the α-glucosidase inhibitory activity of salak fruit extracts in correlation to its Fourier transform infrared spectroscopy (FT-IR) fingerprint, utilizing orthogonal partial least square. This calibration model was applied to develop a rapid analytical method tool for quality control of this fruit. A total of 36 extracts prepared with different solvent ratios of ethanol–water (100, 80, 60, 40.20, 0% v/v) and their α-glucosidase inhibitory activities determined. The FT-IR spectra of ethanol–water extracts measured in the region of 400 and 4000 cm−1 at a resolution of 4 cm−1. Multivariate analysis with a combination of orthogonal partial least-squares (OPLS) algorithm was used to correlate the bioactivity of the samples with the FT-IR spectral data. The OPLS biplot model identified several functional groups (C–H, C=O, C–N, N–H, C–O, and C=C) which actively induced α-glucosidase inhibitory activity

Pro-poor intervention strategies in irrigated agriculture in Asia: poverty in irrigated agriculture: issues and options: Bangladesh

Irrigated farming / Poverty / Irrigation management / Water resource management / Policy / Planning / Institutions / Organizations / Local government / Non-governmental organizations / Legislation / Water users / Participatory management / Public sector / Water allocation / Cost recovery / Households / Income / Expenditure / Irrigation canals / Bangladesh

Effect of different drying treatments and different extraction methods on α-glucosidase inhibitory activities of S. zalacca fruit

Introduction: Salacca zalacca (Gaertn Voss), commonly known as snake fruit and belongs to the Arecaceae family and natives of Southeast Asia. This fruit is edible and have certain medicinal values. Objectives: The aim of this study was to compare the α-glucosidase inhibitory activities of different drying and extraction methods. Material and methods: Flesh of this fruit was subjected to two different drying methods namely; oven dried (OD) and freeze dried (FD) and extracts were prepared using soxhlet (SX), sonication (SC) and maceration (MC) techniques. The α-glucosidase inhibitory activity of extracts were evaluated using α-glucosidase enzyme . Results: The S. zalacca fruit extracts obtained through SC and MC demonstrated better α-glucosidase inhibitory activity as compared to SX method, specifically, the FD extracts showed higher activity compared to the OD extracts. Analysis of α-glucosidase inhibitory activity of the OD S. zalacca fruit extract indicates that extract obtained through SC method possesses significantly higher activity (IC50 79.42 µg/mL) than that of SX extracted sample which displayed IC50 at 125.73 µg/mL. Considering the effects of both methods (drying and extraction) on the α-glucosidase inhibitory activity of S. zalacca fruit extracts, extract obtained through SC of the FD fruits demonstrated the highest activity (IC50 19.40 µg/mL) Meanwhile, extracts obtained via OD and different extraction methods such as SX, MC and SC showed the least inhibition with IC50 125.73, 87.23 and 79.42 µg/mL, respectively. Conclusion: This study suggests that S. zalacca fruit has the potential for nutraceutical enhancement and as ingredient in medicinal preparation

Applications of neuromodulation to explore vestibular cortical processing; new insights into the effects of direct current cortical modulation upon pursuit, VOR and VOR suppression

Functional imaging, lesion studies and behavioural observations suggest that vestibular processing is lateralised to the non‐dominant hemisphere. Moreover, disruption of interhemispheric balance via inhibition of left parietal cortex using transcranial direct current stimulation (tDCS) has been associated with an asymmetric modulation of the vestibulo‐ocular reflex (VOR). However, the mechanism by which the VOR was modulated remains unknown. In this paper we review the literature on non‐invasive brain stimulation techniques which have been used to probe vestibular function over the last decade. In addition, we investigate the mechanisms whereby tDCS may modulate VOR, e.g. by acting upon pursuit, VOR suppression mechanisms or direct VOR modulation. We applied bihemispheric parietal tDCS in 11 healthy subjects and only observed significant effects on VOR gain (tdcs*condition p=0.041) ‐ namely a trend for VOR gain increase with right anodal/left cathodal stimulation, and a decrease with right cathodal/left anodal stimulation. Hence, we suggest that the modulation of the VOR previously and herein observed is directly caused by top‐down cortical control of the VOR as a result of disruption to interhemispheric balance, likely parietal

Applications of neuromodulation to explore vestibular cortical processing; new insights into the effects of direct current cortical modulation upon pursuit, VOR and VOR suppression

This is an accepted manuscript of an article published by IOS Press in Journal of Vestibular Research in 2014, available online: https://doi.org/10.3233/VES-140530 The accepted version of the publication may differ from the final published version.Functional imaging, lesion studies and behavioural observations suggest that vestibular processing is lateralised to the non-dominant hemisphere. Moreover, disruption of interhemispheric balance via inhibition of left parietal cortex using transcranial direct current stimulation (tDCS) has been associated with an asymmetric suppression of the vestibulo-ocular reflex (VOR). However, the mechanism by which the VOR was modulated remains unknown. In this paper we review the literature on non-invasive brain stimulation techniques which have been used to probe vestibular function over the last decade. In addition, we investigate the mechanisms whereby tDCS may modulate VOR, e.g. by acting upon pursuit, VOR suppression mechanisms or direct VOR modulation. We applied bi-hemispheric parietal tDCS in 11 healthy subjects and only observed significant effects on VOR gain (tdcs * condition p=0.041) – namely a trend for VOR gain increase with right anodal/left cathodal stimulation, and a decrease with right cathodal/left anodal stimulation. Hence, we suggest that the modulation of the VOR observed both here and in previous reports, is directly caused by top-down cortical control of the VOR as a result of disruption to interhemispheric balance, likely parietal.This work was funded by the UK Medical Research Council (MR/J004685/1).Published versio