Journal of Scientific
& Industrial Research
http://www.niscair.res.in; http://nopr.niscair.res.in Total visitors: 2805 since 08-06-2011 |
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VOLUME 70
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NUMBER 6
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JUNE 2011 |
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CONTENTS
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Review
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401
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Methane in rice agriculture: A review
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This
review gives an account of mechanisms of methane production and emission from
flooded paddy fields. Future methane emission scenarios show that methane
emissions in 2030 in India are projected to reach 24.4 Tg (reference
scenario), 21.3 Tg (medium mitigation scenario) and 17.6 Tg (strong
mitigation scenario). Morpho-physiological parameters (leaf number, tiller
number and plant biomass) are reported to influence methane emissions. Use of
nitrification inhibitors (prilled urea and nimin) are reported to be suitable
methane mitigation options. |
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Management & Information Technology |
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412 |
Optimal preventive maintenance model of
complex degraded systems: A real life case study |
This study presents a comparison of two models to find optimum
maintenance policy of complex degraded systems. Using Markov processes,
optimal value of mean time to preventive maintenance is determined by
maximizing availability of complete systems. Models include a stochastic
degradation process, random failures and a set of maintenance actions and
their effects. A real life case study is presented to illustrate
implementation of models. A two-component transportation system for
collecting waste utilized by Public utility company, Mediana Niš, Serbia, is
analyzed.
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Management & Information Technology |
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421 |
Surface rendering of three dimensional
ultrasound images using VTK |
This
study utilized VTK visualization tool to demonstrate reconstruction of
medical image using surface rendering technique. Simulation result shows t
three dimensional surface rendering of multiple slices ultrasound fetal
phantom images in orthogonal view, upper left and upper right for
reconstructed coronal and sagittal images and also internal view by changing
position. A three dimensional reconstruction using surface rendering
via VTK library is accomplished and it is found effective in terms of cost
and performance in medical image.
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427 |
A novel intuitionistic fuzzy approach for tumour/hemorrhage detection
in medical images |
This study presents a novel method to detect edges that clusters,
thresholds, and then detects edges of tumour/ hemorrhage region using
intuitionistic fuzzy set theory. Clustering segments image into several
clusters and histogram thresholding eliminates unwanted clusters that are not
related to tumour/hemorrhage region. Finally, image is edge detected, where a
clear boundary is obtained. Proposed method performs better than existing
edge detection methods. |
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435 |
Second generation of low-cost fused tapered
(LFT) splitters based on POF technology |
This
study presents second generation low-cost fused tapered (LFT) 1 × 3 splitter (G2) as
novel, low-cost and low-loss splitting device made from PMMA-based polymer
optical fiber (POF). G2 (short taper, 0.5 - 2.0 cm) was fabricated by
reformulated handwork fusion method using candle and metal tube. Insertion
loss (7 dB) and excess loss (0.53 dB) for G2 is extremely low. G2 are
homogenous splitters since their splitting
ratio are very close to 33:33:33% with ± 5% of tolerance.
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Management & Information Technology |
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443 |
Industrial automation test for drill
string compensator |
This study introduces an
industrial automation testing system of drill string compensator (DSC) using
a data acquisition (DAQ) based on a wireless monitoring. Automated testing
system has been designed to provide a better working efficiency of DSC. With
increase in pressure, breaking point of isolation valve was found to be at 63
bar and 68 bar and stable operating limit was obtained at 55 bar and 60 bar
value, respectively for two drillships.
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S & T and Industrial Research |
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448 |
Design and
analysis of piezoactuated micropump for fuel delivery in automobiles |
This study presents piezo actuated valveless micropump, designed for
fuel delivery in automobiles, to determine dimensions of piezo actuated
micropump, to direct PZT actuated valveless micropump fabrication and to
reduce fabrication cost. Complete piezo ceramic actuator is designed and
analyzed by using INTELLISUITE software. From simulation results, optimal
dimensions of piezo ceramic actuator (diameter and thickness for piezo disc,
silicon diaphragm) are selected. This paper also focuses on vibration
characteristics of PZT actuator using Thermoelectromechnical analysis.
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455 |
Homogenate extraction of isoflavones from soybean meal by orthogonal design
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Factors that affect yield of isoflavones extracted from soybean meal by using homogenate extraction method were studied by orthogonal design experiment [L9(34)]. Optimum extraction conditions were found as follows: sample particle size, 60 mesh; ethanol concentration, 60%; extraction time, 50 s; ratio of material to liquid, 1 g: 20 ml; and yield of isoflavones, 0.52 ± 0.01%. Compared with traditional heat refluxing extraction method, yield of homogenate extraction was 29.3% higher, and extraction time was significantly shortened. |
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S & T and Industrial Research |
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461 |
6-Benzylaminopurine
improves shelf life, organoleptic quality and health-promoting compounds of
fresh-cut broccoli florets |
Fresh-cut broccoli (Brassica oleracea var. italica) florets were subjected to 6-benzylaminopurine (BAP) treatment by dipping in BAP [0, 5, 10 and 15 ppm] for 10 min and stored at 6±1°C. Treatment with BAP (10 ppm) significantly delayed yellowing and chlorophyll degradation, consequently maintained organoleptic quality during storage. Treated florets had higher retention of health promoting compounds (protein and ascorbic acid) in relation to control. Treatment 10 ppm BAP could be a useful method to extend shelf life of fresh-cut broccoli florets during storage at 6±1°C at commercial level. |
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Energy and Environment |
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466 |
Evaluation of soybean/canola/palm
biodiesel mixture as an alternative diesel fuel |
This
study examines fuel properties and performance characteristics of diesel
engine fueled with three different biodiesel mixtures (soybean, canola and
palm oils) and their blends with diesel fuel according to ASTM and EN
standards. Blend with soybean (25%) - canola (25%) - palm (25%) - diesel
(25%) reached acceptable fuel properties (kinematic viscosity 4.3 mm2/s,
cetane number 53, pour point -4°C). It performed 3% power loss with 8% higher
specific fuel consumption. While CO and CO2 emissions were
reduced, NOx emissions were increased with increasing biodiesel
contents in blends. As a result, diesel usage was minimized to 25% by blending it
with S-C-P biodiesels
together.
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471 |
Experimental investigations on sound
insulation through single, double & triple window glazing for traffic
noise abatement |
This study presents sound
insulative sandwich window constructions of high sound transmission class
(STC) value for abatement of traffic and aircraft noise in Delhi city. An
empirical relationship correlating with thickness of glass for various window
configurations has been developed. Significant increase in sound insulation
is observed at higher frequencies when either one glazing is double or both
glazing are double. Increasing thickness of glass pane, coincidence dip
shifts towards lower frequency and also with increasing air gap, a
significant improvement in sound insulation characteristics in both low and
high frequencies is observed. |
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Author-Reader Platform |
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479 |
Instructions to contributors
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