21 research outputs found
DEVELOPMENT OF AN FPGA BASED SMART DIAGNOSTIC SYSTEM FOR SPIROMETRIC DATA PROCESSING APPLICATIONS
Get PDFFPGA BASED MAXIMUM POWER POINT TRACKER OF PARTIALLY SHADED SOLAR PHOTOVOLTAIC ARRAYS USING MODIFIED ADAPTIVE PERCEPTIVE PARTICLE SWARM OPTIMIZATION
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Living with Floods Using State-of-the-Art and Geospatial Techniques: Flood Mitigation Alternatives, Management Measures, and Policy Recommendations
No full textFlood, a distinctive natural calamity, has occurred more frequently in the last few decades all over the world, which is often an unexpected and inevitable natural hazard, but the losses and damages can be managed and controlled by adopting effective measures. In recent times, flood hazard susceptibility mapping has become a prime concern in minimizing the worst impact of this global threat; but the nonlinear relationship between several flood causative factors and the dynamicity of risk levels makes it complicated and confronted with substantial challenges to reliable assessment. Therefore, we have considered SVM, RF, and ANN—three distinctive ML algorithms in the GIS platform—to delineate the flood hazard risk zones of the subtropical Kangsabati river basin, West Bengal, India; which experienced frequent flood events because of intense rainfall throughout the monsoon season. In our study, all adopted ML algorithms are more efficient in solving all the non-linear problems in flood hazard risk assessment; multi-collinearity analysis and Pearson’s correlation coefficient techniques have been used to identify the collinearity issues among all fifteen adopted flood causative factors. In this research, the predicted results are evaluated through six prominent and reliable statistical (“AUC-ROC, specificity, sensitivity, PPV, NPV, F-score”) and one graphical (Taylor diagram) technique and shows that ANN is the most reliable modeling approach followed by RF and SVM models. The values of AUC in the ANN model for the training and validation datasets are 0.901 and 0.891, respectively. The derived result states that about 7.54% and 10.41% of areas accordingly lie under the high and extremely high flood danger risk zones. Thus, this study can help the decision-makers in constructing the proper strategy at the regional and national levels to mitigate the flood hazard in a particular region. This type of information may be helpful to the various authorities to implement this outcome in various spheres of decision making. Apart from this, future researchers are also able to conduct their research byconsidering this methodology in flood susceptibility assessment
Endodermal sinus tumor of testis with acute intestinal obstruction: A rare presentation
No full textA 7-year-old boy reported with endodermal sinus tumor of left testis, jejunal metastasis and intestinal obstruction. He was treated by high inguinal orchidectomy and resection of jejunal mass followed by chemotherapy
Spontaneous gall bladder perforation: a rare condition in the differential diagnosis of acute abdomen in children
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Choledochal cyst: A review of 79 cases and the role of hepaticodochoduodenostomy
No full textAim : To analyze our experience of choledochal cysts. The results of complete excision of cyst and hepaticodochoduodenostomy have been analyzed in particular. Material and Methods : Period of study: January 1993 to August 2010. Apart from basic investigations, we did ultrasonography (USG) of abdomen, contrast-enhanced computerized axial tomography scan (CECT), endoscopic retrograde cholangiopancreatography (ERCP), operative cholangiogram, hepatic isotope scan (HIDA), magnetic resonance cholangiopancreatogram (MRCP) and choledochoscopy. The patients were divided into six groups according to the management done and the results analyzed. Results : The total number of cases was 79 (Male : Female = 26 : 53). The mean age of presentation was 5.18 years . The most common mode of presentation was abdominal pain in 86% cases. Types of cysts - Type I: 63; Type IV: 12; Forme fruste: 1; Caroli′s disease: 1; Cyst with atresia in the lower end of common bile duct: 2. Two patients of group A (cyst excision and Roux-en-Y hepaticojejunostomy) had recurrent pain and cholangitis. One patient required revision for stricture. In group E (n=53) (excision of cyst and hepaticodochoduodenostomy), three patients developed occasional epigastric pain and they responded to omeprazole. One patient developed anastomotic stricture and was lost to follow up. One patient of cyst with biliary atresia with biliary cirrhosis died. Conclusions : In choledochal cyst, complete excision of cyst and good bilioenteric anastomosis with wide stoma should be done. Hepaticodochoduodenostomy with wide stoma is a simple, quick procedure with preservation of normal anatomy and physiology and minimum complications. It also avoids multiple intestinal anastomoses and so should be the preferred approach
Biodegradation of Crystal Violet dye by bacteria isolated from textile industry effluents
Get PDFIndustrial effluent containing textile dyes is regarded as a major environmental concern in the present world. Crystal Violet is one of the vital textile dyes of the triphenylmethane group; it is widely used in textile industry and known for its mutagenic and mitotic poisoning nature. Bioremediation, especially through bacteria, is becoming an emerging and important sector in effluent treatment. This study aimed to isolate and identify Crystal Violet degrading bacteria from industrial effluents with potential use in bioremediation. The decolorizing activity of the bacteria was measured using a photo electric colorimeter after aerobic incubation in different time intervals of the isolates. Environmental parameters such as pH, temperature, initial dye concentration and inoculum size were optimized using mineral salt medium containing different concentration of Crystal Violet dye. Complete decolorizing efficiency was observed in a mineral salt medium containing up to 150 mg/l of Crystal Violet dye by 10% (v/v) inoculums of Enterobacter sp. CV-S1 tested under 72 h of shaking incubation at temperature 35 °C and pH 6.5. Newly identified bacteria Enterobacter sp. CV-S1, confirmed by 16S ribosomal RNA sequencing, was found as a potential bioremediation biocatalyst in the aerobic degradation/de-colorization of Crystal Violet dye. The efficiency of degrading triphenylmethane dye by this isolate, minus the supply of extra carbon or nitrogen sources in the media, highlights the significance of larger- scale treatment of textile effluent
