Review |
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393 |
Citrus in terms of soil and water salinity: A review
Ashutosh A Murkute, Satyawati Sharma & S K Singh
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The deleterious effects of salt stress lead to reduction in fruit yield and quality. The response of different citrus species to different salt(s) further brings differential responses, when fruit quality is concerned. The possible mechanisms (physical, nutritional, biochemical), which plants adapt to sustain salt stress, might provide an indication to plant breeders and biotechnologists to proceed further in crop improvement. The present study is an attempt to review the literature and explore the possible mechanisms of salt tolerance on sustainability of salinity by citrus. The role of endomycorrhizal fungi in citrus under salt stress is also discussed.
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Papers: Management and Information Technology |
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403 |
Benchmarking evaluation of performance of public research institutes using data envelopment analysis
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Public research institutes (PRIs) are considered as a system with inputs and outputs. Data Envelopment Analysis is utilized to suggest a methodology to analyze and benchmark the performance of PRIs. It is applied to measure the relative performance of each institute with respect to best performing institute.. The proposed methodology was applied on a set of PRIs working in the same area and evaluated their performance.
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411 |
Design of artificial neural networks for rotor dynamics analysis of rotating machine systems
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A neural network predictor is designed for analyzing vibration parameters of the rotating system. The vibration parameters (amplitude, velocity, acceleration in vertical direction) are measured at the bearing points. The system’s vibration and noise are analyzed with and without load.. The results show that the network is useful as an analyzer of such systems in experimental applications. The neural networks are validated for reduced test data with unknown faults.
IPC Code: G 06 N 3/02
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420 |
Complexity reduction in fuzzy modeling of fan-coil unit of HVAC system
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In this paper, methods based on similarity analysis that can be applied to fuzzy models in order to obtain models of reduced complexity and qualitative properties depending on the purpose of the modeling exercise have been presented. The application of fuzzy modeling technique to fan-coil unit of an HVAC system has shown that the originally obtained model can be strongly reduced, allowing for qualitative interpretation, and faster computations, without deteriorating the prediction accuracy.
IPC Code: G 05 B 15/02
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Papers: S&T and Industrial Research |
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426 |
Y Anjaneyulu, S Sureshbabu, I Jayakumar, S Lakshminarayana & T H Rao
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A simple, rapid response prototype piezoelectric crystal (PEC) analyzer comprising PEC electrode coated with selective polymeric layer, a control unit, solenoid valves, quartz crystal frequency comparator with a digital display weighing approximately 1.5 kg is developed. Four kinds of polymeric coating materials, (2-hydroxyethyl) ethylenediamine, (2-hydroxypropyl) ethylenediamine, silicone oil and polyethylene glycol 400 were examined as coatings to fabricate the sensor. All the coated PEC based sensors were found reversible in their response to SO2 concentration (0.01-30 ppm) with response time (1-2 min) and baseline noise of 0.5Hz (read over 1 hour) with a drift of <10Hz/hr.
IPC Code: G 06 K 7/10
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435 |
Thermal properties and micromorphology of polyurethane resins based on liquefied benzylated wood
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Liquefied benzylated wood based Polyurethanes (PUs) are synthesized with excess toluene diisocyanate (TDI), isophorone diisocyanate (IPDI) and hexamethylene diisocyanate (HDI). Four polyethylene glycols (PEG) of molecular weight 400, 600, 1000 and 2000 are mixed with liquefied wood using dibasic ester (DBE) as liquefaction reagent to incorporate different proportions of soft segment into the network prior to crosslinking with TDI.. Results indicated that molecular weight of the PEG had only a minor effect on glass transition temperature (Tg) of PU samples, but diisocyanates had major effects. The Tg of HDI-based PU network was –25°C lower than that of TDI (40°C) and IPDI (28.6°C).
TDI, IPDI-based films have better phase-mixing properties than HDI-based PU. All the films had greater thermal stability than conventional PU films based on polyether or polyester alone.
IPC Code: C 02 G 18/02
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440 |
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A furnish ratio (1:1) of mill pulp having poplar, eucalyptus and bamboo (75:20:05) and softwood is found suitable for manufacturing of seed germination paper. For such paper, water klemn, COP, wet strength, and toxicity tests are the most important properties. The paper should not contain pernicious materials, which can inhibit the growth of roots and plumules of germinating seedlings. However, paper should contain certain chemicals to check the growth of fungi and bacteria but not suppress the disease organisms and growth of seedlings during seed germination test. Calcium hypochlorite dose (7%) is found suitable to clear toxicity test in the laboratory. The laboratory made hand sheets, when compared with specifications prescribed by leading manufacturers of germination paper and BIS specifications, were found promising.
IPC Code: D 21 H 27/00
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443 |
Dharm Dutt, J S Upadhyay, C H Tyagi, Swarnima & M K Upadhyay |
Heavy weight base paper for paper cups was manufactured from bleached hardwood and softwood chemical pulps. It is highly specialized paper used extensively for manufacturing of paper cups used for various liquid packaging, such as milk and juice packaging. Bleached mill pulp comprised Populus deltoids, Eucalyptus tereticornis and bamboo (85:10:05) blended with softwood pulp to attain certain level of mechanical strength and stiffness. Purity and cleanliness are the utmost requirements if food items are packed. The laboratory made hand sheets compared favourably with specifications prescribed by leading manufacturers of paper cups
IPC Code: D 21 H 27/00
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447 |
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The major obstacle for the development of various types of filter papers is the shortage of good quality of fibers in order to impart properties like mean pore diam, micron ratting, optimal porosity and general wet web strength for runnability of machine and non-availability of technology. The study aims at developing various kinds of filter papers from raw materials available plentifully in India.
IPC Code: D 21 H 27/00
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Paper: Energy and Environment |
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454 |
Investigation of personal-indoor-outdoor particulate relationships in welding workshops
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Indoor-outdoor-personal particulate matter (PM) sampling was conducted in five selected welding workshops of Durg-Bhilai area, Chhattisgarh. Indoor-Outdoor-Personal PM5 and Indoor-Outdoor PM10 samples were collected using recommended methods and instruments for PM monitoring. In some cases, indoor concentrations have been found to be 2-3 times higher than outdoor PM concentrations. Personal PM5 concentrations have been found highest among Indoor-Outdoor-Personal PM5 levels and positively correlated with indoor PM5 concentration and not much positive correlation with outdoor PM5 concentration.
IPC Code: B 31 B 1/00 |
Report |
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459 |
Rhizosphere biotechnology/microbes in relation to plant health: Retrospect & prospects¾A report
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Author-Reader Platform |
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461 |
Announcement |
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462 |
Instructions to contributors |
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