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Journal of Scientific & Industrial Research

 

 

ISSN: 0022-4456

CODEN: JSIRAC (64) (6)  (2005)

VOLUME 64

NUMBER 6

JUNE  2005

 

 

CONTENTS

 

Review

393

Citrus in terms of soil and water salinity: A review

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

  

 

 

 

 

 

 

 

Ashutosh A Murkute, Satyawati Sharma & S K Singh

 

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.

 

Papers: Management and Information Technology

403

Benchmarking evaluation of performance of public research institutes using data envelopment analysis

 

 

 

 

  

 

 

 

 

 

S Rama Mohan

 

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.

 

 

411

Design of artificial neural networks for rotor dynamics analysis of rotating machine systems

 

 

 

 

 

 

 

 

  

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Hamdi Taplak, Ibrahim Uzmay & Şahin Yıldırım

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

 

 

420

Complexity reduction in fuzzy modeling of fan-coil unit of HVAC system

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

  

 

  

 

 

 

 

Jagdev Singh, Nirmal Singh &  J K Sharma

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

 

Papers: S&T and Industrial Research

426

Design and development of polymer coated piezoelectric crystal based analyzer for direct monitoring of sulphur dioxide

 

 

 

 

 

 

 

 

 

 

 

 

  

 

  

 

 

 

 

Y Anjaneyulu, S Sureshbabu, I Jayakumar, S Lakshminarayana & T H Rao

 

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

 

435

Thermal properties and micromorphology of polyurethane resins based on liquefied benzylated wood

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Yuping Wei, Fa Cheng, Houping Li & Jiugao Yu

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

 

440

Development of specialty papers is an art: Seed germination paper from indigenous raw materials─ Part XIII

 

 

 

 

 

 

 

 

 

 

Dharm Dutt, Mohan Lal, R S Malik & M K Upadhyay

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

 

443

Development of specialty papers is an art: Paper cups base paper from indigenous raw materials─ Part XIV

 

 

 

 

 

 

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

 

447

Development of specialty paper is an art: Automobile filter paper from indigenous raw materials—Part XVII

 

 

 

Dharm Dutt, A K Ray, C H Tyagi, J S Upadhyay & Mohan Lal

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

 

 Paper: Energy and Environment

454

Investigation of personal-indoor-outdoor particulate relationships in welding workshops

 

 

 

 

 

 

 

 

Shamsh Pervez, James Mathew & Rajnikant Sharma

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

459

Rhizosphere biotechnology/microbes in relation to plant health: Retrospect & prospects¾A report

 

J K Johri & A K Roy

 

 

Author-Reader Platform

461

Announcement

462

Instructions to contributors

 

 

Author Index

 

Anjaneyulu Y

426

Mohan S R

403

Sureshbabu S

426

Murkute A A

393

Swarnima

443

Cheng F

435

 

 

Pervez S

454

Taplak H

411

Dutt Dharm

440,443, 447

 

 

Tyagi C H

443,447

Rao T H

426

 

 

Jayakumar I

426

Ray A K

447

Upadhyay J S

443,447

Johri J K

459

Roy A K

459

Upadhyay M K

440,443

Uzmay I

411

Lakshminarayana S

426

Sharma J K

420

 

 

Lal M

440,447

Sharma R

454

Wei Y

435

Li H

435

Sharma S

393

 

 

Singh J

420

Yıldırım Ş

411

Malik R S

440

Singh N

420

Yu J

435

Mathew J

454

Singh S K

393

 

Keyword Index

 

Abiotic stress

393

Hardwood

447

PM10

454

Arbuscular Mycorrhizal fungi

393

HVAC System

420

Polymer

426

Arc-welding workshop

454

 

 

Polyurethane

435

Artificial neural network

411

Indigenous raw materials

443

Poplar

440

Automobile filter papers

447

Infiltration factor

454

Pore size diameter

447

 

 

Intercept

454

Porosity

447

Bamboo

440

 

 

Pulp blending

447

Bending stiffness

443

Liquefied benzylated wood

435

Public research institutes

403

 

 

 

 

 

 

Chemical sensor

426

Maceration

447

Quartz crystal microbalance

426

Citrus

393

Microenvironments

447,454

 

 

COP

440

Mean pore diameter

447

Rim cracking

443

Cotton linter

447

Micron ratting

447

Rotating machine system

411

 

 

 

 

Rotor dynamic

411

Data envelopment analysis

403

Neural network

411

 

 

Demineralized water

447

 

 

Salinity

393

 

 

O/I ratio

454

Seed germination test

440

Eucalyptus

440

 

 

Shaft vibration

411

 

 

Paper cups

443

Sulphur dioxide

426

Fan - coil Unit

420

Performance analysis

403

 

 

Frequency meter

426

Personal exposure

454

Tissue culture

393

Fuzzy modeling

420

Phase separation

435

 

 

 

 

Phenol formaldehyde resin

447

Wet strength

440

Glass transition temperature

435

PM5

454