Implementation of IMMPDAF Algorithm in LabVIEW for Multi Sensor Single Target Tracking

Real time IMMPDAF algorithm has been implemented and tested in LabVIEW. Single aircraft flight profiles have been simulated and the plot data from multiple radars observing the single aircraft are generated with noise as well as clutter. The performance of the algorithm is evaluated using standard procedures. Since it is implemented and tested in LabVIEW, this algorithm can be easily realized in hardware for real time tracking applications

Comparative efficiency of frame nets and trammel nets

Fishing experiments were conducted simultaneously with frame nets and trammel nets in the Hirakud Reservoir and the results indicated the relative superiority of frame nets, whose catch rate was two times more than that of the trammel nets

Effect of hanging coefficient on the efficiency of frame net

Comparative fishing experiments with frame nets of 0.4 and 0.5 hanging coefficients were conducted. Results indicate that net with hanging coefficient of 0.4 as more effective for better catch

Coloured gill nets for reservoir fishing

Experimental fishing with different coloured nets has shown that white net yields better catch. The efficiency of the coloured nets was in the order yellow, grey, green and blue. Though there is little evidence to show some species preference to a particular colour, the results were not conclusive as the analysis of variance indicated that interaction between species and colour is significant only at 5% level

Mining valuable minerals from seawater: A critical review

©2017 The Royal Society of Chemistry. Seawater contains large quantities of valuable minerals, some of which are very scarce and expensive in their land-based form. However, only a few minerals, the ones in high concentrations, are currently mined from the sea. Due to recent problems associated with land-based mining industries as a result of depletion of high-grade ores, sustainable water and energy demand and environmental issues, seawater mining is becoming an attractive option. This paper presents a comprehensive and critical review of the current methods of extracting valuable minerals from seawater and seawater brines generated in desalination plants, and suggests ways to overcome some of the limitations and challenges associated with the extraction process. The extraction methods discussed are solar evaporation, electrodialysis (ED), membrane distillation crystallisation (MDC), and adsorption/desorption

ANTIDIABETIC EFFECT AND PHYTOCHEMICAL SCREENING OF ETHANOLIC EXTRACT OF POLYALTHIA CERASOIDES STEM BARK IN STREPTOZOTOCIN INDUCED DIABETIC ALBINO RATS

Objective: Polyalthia cerasoides stem bark is used in treatment the of various diseases. Some tribes of North Orissa used the stem bark in the treatment of diabetes. We investigated the effect of four different solvent (n-hexane, ethyl acetate, ethanol and aqueous) extracts of Polyalthia cerasoides stem bark on streptozotocintozocin (STZ) 45 mg/kg b. wt. induced diabetic rats.Methods: Normal control and diabetic control groups were allowed with free access to water throughout the experiment. Oral administration of four different solvent (n-hexane, ethyl acetate, ethanol and aqueous extracts of P. cerasoides stem bark to 12 hrs fasted normal and STZ induced diabetic rats at a dose of 200, 400 and 600 mg/kg b. wt for acute studies. (Determination of effective extract and dose:  Each group was maintained with six rats)The fasting blood glucose FBG levels were checked for every 2 hrs (1h, 3h, 5h & 7h). Chronic study:  (Each group was maintained with six rats)The normal and diabetic groups were supplemented with optimum dosage 400mg ethanol extract of P. cerasoides (PcEE) stem bark and 20 mg of glibinclamide (Glb) a standard drug treated diabetic group for 21 days.Results: Acute administration of P. cerasoides stem bark reduced FBG[A1]  levels in ethanol extract atthe dosee 400 and 600 mg/ kg b. wt (48.5% and 32.4%, P<0.05) in the diabetic rats only. It does not affect the normal FBG levels in normal rats. In chronic treatment significant reduction in FBG levels in diabetic rats (51.6%). Body weight also increased in extract treated animals. The maximal antidiabetic effect was obtained in 400 mg PcEE[A2]  which was similar to Glb treated group. The PcEE treated diabetic rats also confirmed the significant recovery of liver and kidney destruction.Conclusion: Our study has revealed the therapeutic effect of PcEE for diabetes and its related complications.Â

Acceptance Sampling Plans for Percentiles Based on the Exponentiated Half Logistic Distribution

In this article, acceptance sampling plans are developed for the exponentiated half logistic distribution percentiles when the life test is truncated at a pre-specified time. The minimum sample size necessary to ensure the specified life percentile is obtained under a given customer’s risk. The operating characteristic values (and curves) of the sampling plans as well as the producer’s risk are presented. Two examples with real data sets are also given as illustration

Hydrogen Bonding & Excess Volumes of Mixing of Phenol, o- & p-Chlorophenols & 0- & p-Cresols with Tetrahydrofuran & Cyc1ohexanone

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Comparison of membrane distillation and freeze crystallizer as alternatives for reverse osmosis concentrate treatment

© 2017 Elsevier B.V. Membrane distillation (MD) and freeze crystallizer (FC) were evaluated as alternative reverse osmosis concentrate (ROC) treatment options. A direct contact MD (DCMD) was capable of obtaining 60% water recovery with chemically pretreated ROC. Nevertheless, in repeated cycles, DCMD displayed a trend of reduced water recovery and declining permeate quality. At elevated concentrations, ROC caused scaling and membrane hydrophobicity reduction, indicating reduced membrane life span. On the other hand, FC in three-stage freeze/thaw approach was able to concentrate ROC by 2.3 time, achieving a 57% water recovery with no scaling issues. The fresh ice water quality (total dissolved solids) obtained from FC was within the range of 0.08–0.37 g/L. A brief techno-economic evaluation highlighted advantages and limitations of both options. The efficiency of DCMD as a compact, low thermal process for ROC treatment was compromised by membrane scaling, indicating the necessity for a scaling mitigation pretreatment. This invariably incurs an additional cost. FC was advantageous as a scaling and chemical free process. The high freezing requirement of FC could be met by coupling with refrigerant coolant from liquefied natural gas. Nevertheless, the practical industrial application of FC is inherently restricted due to complex scaling up issues