Journal of Scientific & Industrial Research

http://www.niscair.res.in; http://nopr.niscair.res.in

Total visitors:7536 since 27-12-2010

 

VOLUME 70

NUMBER 1

JANUARY 2011

 

Editorial

 

CONTENTS

Management & Information Technology

13

Dependability as criteria for bucket wheel excavator revitalization




Miloš Tanasijević, Dejan Ivezić,
Dragan Ignjatović & Dragan Polovina

This study presents a model for dependability performance analysis of bucket wheel excavators using fuzzy sets. Dependability is overall indicator for quality of service, and considers simultaneously reliability, maintainability and maintenance support. As bucket wheel excavator is a technical system with a complex hierarchical structure, synthesis of information given in fuzzy form from the level of components to subsystems, functional systems and whole bucket wheel excavator is necessary. For synthesis processes, evident reasoning theory is used.

20

Modeling of capacitated single allocation hub location problems with n-hub center

Hesam Saiedy, Sarem Deilami Moezi & Mahshad Noruzi

Hub location problem is NP-hard problem that frequently applies in design of transportation and distribution systems, postal delivery networks, and airline passenger flows. This study presents modeling of capacitated Single Allocation Hub Location Problem (SAHLP) with two indices in order to get fast model solving.

25

Analysis of data using neuro-fuzzy approach recorded by instrumentation network installed at Mansa Devi (Haridwar) landslide site













S K Mittal, Sunil Dhingra & H K Sardana

This paper presents a case study of landslide monitoring and early warning of Mansa Devi (Haridwar), located at Haridwar by pass road. Mansa Devi site is found rain prone and developed model demonstrates a fairly accurate prediction.

 

32

A comparison of monitoring techniques for replacement decision of a machinery component towards functional failure –A case study at pulp manufacturing industry





Rosmaini Ahmad & Shahrul Kamaruddin

This paper presents a comparative study between wear rate and product quality in replacement decision making process for machinery component towards functional failure, using data from a real case study of cutting knife at pulp manufacturing industry. Through wear rate monitoring technique, replacement decision of cutting knife is actually decided prematurely, indicating that cutting knife still can be used for a certain amount of time before it really needs to be replaced. Thus, by understanding mechanism of actual failure perspective of cutting knife, better replacement decision can be made through product quality monitoring technique.

S & T and Industrial Research

36

Design of ultra fast 2x2 electro-optic polymer waveguide switch for protection in intelligent optical networks


















S Ponmalar & S Sundaravadivelu

This paper presents design of an ultra high speed 2x2 polymer electro-optic waveguide switch. Proposed switch has very short switching time (0.47 ps) and trapezoidal grating has following optimized parameters: coupling length, 81 mm; and switching voltage at operating wavelength of 1550 nm, 8.5 V. Proposed switch with smaller size, lower requirement of drive voltage and shorter switching time than existing switches is an important element in protection application in intelligent optical network.

41

Performance evaluation of digital grain moisture analyser for Indian wheat





Babankumar S Bansod & Thakur Ritula

This study presents an inexpensive and portable micro-controller based digital grain moisture analyser (DGMA) for Indian wheat. A prediction model has been devised to readily calculate and display moisture (%) on digital readout. A good co-relation was found between moisture values of Indian wheat compared with moisture values for same grain with standard dry oven method. High values of coefficient of correlation under all plotted graphs indicate high accuracy of DGMA.

45

Rapid direct spectrophotometric determination of zirconium(IV) in alloys with 2,2/,3,4-tetrahydroxy-3/-sulpho-5/-carboxyazobenzene reagent

















Ulku Dilek Uysal, A Ali Huseyinli &
Tufan Güray

In this study, 2, 2', 3, 4-tetrahydroxy-3'-sulpho-5'-carboxyazobenzene (tetrahydroxyazon SC) has been synthesized for the first time and used for direct spectrophotometric determination of zirconium(IV). Proposed method is highly sensitive, selective, rapid and simple. It has been applied to direct determination of zirconium(IV) in aluminum, zinc and copper based standard certified alloys without any separating procedure.

51

A novel spectrophotometric determination of atenolol using sodium nitroprusside




















Nadia Bashir, S W H Shah, Masroor Bangesh & Riazullah

A simple, sensitive and new spectrophotometric method has been developed for determination of atenolol, a cardiovascular drug. Proposed method is based on deamination of atenolol in basic media, followed by addition of sodium nitroprusside to generate a coloured complex that absorbs at 495 nm. It gave following values: Beer’s law, 0.5-30 µg ml-1; molar absorptivity, 3.01×105 l.mol-1.cm-1; limit of detection, 0.0107 µg ml-1; and limit of quantification, 0.0358 µg ml-1. It was successfully employed for determination of active ingredient concentration in commercial formulations of atenolol.

55

Factors affecting endotoxin removal from aqueous solutions by ultrafiltration process

















A Abdel Nasser EL-Moghazy

This study presents factors affecting endotoxin removal from bacterial cells homogenates with ultrafiltration process. Endotoxin removal was more efficient at low protein concentrations (3 mg/ml) compared to high protein concentrations (30 mg/ml). Efficiency increased from 28.9% in undiluted sample to 99.8% in diluted samples (1:256). Highest removal efficiency of endotoxin occurred at pH 7-8. In presence of different detergents (0.5% Tween 20, 1% Triton X-100, 1% Triton X-114, and 1% taurodeoxycholate), endotoxin removal was more efficient at diluted samples compared to undiluted samples. Polysulfone membrane represent an efficient method in reducing endotoxin from solutions containing biomolecules.

 

60

Ecophysiological studies for boosting commercial production of tuberous roots of Chlorophytum boriviilianum Sant ET Fernan






Sandhya Tyagi & Vinita Sharma

This paper presents ecophysiological studies of tuberous roots of safed moosli (Chlorophytum borivilianum), a powerful aphrodisiac, for boosting its commercial production. Average weight of tuberous roots produced at the end of growing season from propagule root tubers soaked in 0.75% of potassium sulphate or a mixture (100 ppm) of equal quantities of IAA (indole acetic acid) and kinetin prior to sowing led to three times higher production than control. Pretreatment with potassium salts are only negligibly lower than those produced under very costly hormones, giving higher profits to safed moosli culivators.

Energy and Environment

64

Enhancement of energy efficiency and loading of steam turbines through retrofitting 2-d designs with 3-d designs



















M Siddhartha Bhatt

This paper presents improvement in energy efficiency and power loading of steam turbines through module retrofits accomplished by migration from 2-d designs to 3-d designs. Power output of overall turbine is expected to increase by ~14 MW (for original steam flow) or heat rate is expected to decrease by 6.6% (through reduced steam consumption). Operating turbine efficiency is expected to increase from 39.90% to 42.72%. The 3-d stack optimized design is expected to give an improvement of 6-7% over 2-d design. Loading of unit can be enhanced without any major hardware changes with a few improvements in boiler and generator and these will not limit unit loading.

Waste Treatment and Utilization

71

Degradation of phenol and m-cresol in aqueous solutions using indigenously developed microwave-ultraviolet reactor























S Karthikeyan &
A Navaneetha Gopalakrishnan

A MW-UV reactor was developed indigenously for degradation of aqueous phenol and m-cresol (degradation efficiency, MW-UV-TiO2 > UV-TiO2 > MW-TiO2 > MW-UV > UV > MW). Maximum degradation of phenol (85%) and m-cresol (92%) by MW-UV-TiO2 and MW-UV-TiO2 was three folds faster in reaction time and catalyst requirement than UV-TiO2 method. Degradation of phenol and m-cresol in reactor followed pseudo first order reaction and reaction rate (k) for MW-UV-TiO2 was 2.2 times greater than UV-TiO2 and greater (17 times for phenol and 22 times for m-cresol) than other processes. MW-UV-TiO2 was 2.3 times more efficient in removal of TOC than conventional photocatalytic method.

Book Review

77

Disasters, Strengthening Community Mitigation & Preparedness, reviewed by Dr P D Tyagi

Author-Reader Platform

78

Instructions to contributors

 
 

Author Index



Ahmad R

32

 

 

Bangesh M

51

Bansod B S

41

Bashir N

51

Bhatt M S

64

 

 

Dhingra S

25

 

 

Gopalakrishnan A N

71

Güray T

45

 

 

Huseyinli A A

45

 

 

Ignjatović D

13

Ivezić D

13

 

 

Kamaruddin S

32

Karthikeyan S

71

 

 

Mittal S K

25

Moezi S D

20

Moghazy A A N EL

55

 

 

Noruzi M

20

 

 

Polovina D

13

Ponmalar S

36

 

 

Riazullah

51

Ritula T

41

 

 

Saiedy H

20

Sardana H K

25

Shah S W H

51

Sharma V

60

Sundaravadivelu S

36

 

 

Tanasijević M

13

Tyagi S

60

 

 

Uysal U D

45


Keyword Index




2,2',3,4-Tetrahydroxy-3'-sulpho-5'-carboxyazobenzene

45

 

 

3-d Blading

64

 

 

Atenolol

51

 

 

Bucket wheel excavator

13

 

 

Calibration curve

41

Capacitated

20

Chlorophytum boriviilianum

60

Coefficient of correlation

41

Condition monitoring

32

Condition-based maintenance

32

Coupled mode theory

36

Cutting knife

32

 

 

Deamination

51

Dependability

13

Detergent

55

Digital grain moisture analyser

41

Dry oven technique

41

 

 

Early warning

25

Ecophysiological studies

60

Electro-optic effect

36

Endotoxin

55

Energy efficiency

64

Evidential reasoning

13

 

 

Fuzzy sets

13

 

 

Hub location problem

20

Hub-and-spoke

20

 

 

Instrumentation network

25

Intelligent optical network

36

Isentropic efficiency

64

 

 

Landslide monitoring

25

Linear regression studies

41

Lipopolysaccharide

55

 

 

m-Cresol

71

Microwave-ultraviolet treatment

71

 

 

Network design

20

Neural - fuzzy technique

25

 

 

Optical switch

36

 

 

Phenol

71

Photocatalytic degradation

71

Product quality monitoring

32

 

 

Replacement decision

32

 

 

Size-exclusion chromatography

55

Sodium nitroprusside

51

Spectrophotometry

45, 51

Stage efficiency

64

Steam turbines

64

 

 

Tetrahydroxyazon SC

45

Tuberous roots

60

 

 

Ultrafiltration

55

 

 

Variable reaction blading

64

 

 

Wastewater treatment

71

Waveguide grating structures

36

Wear rate monitoring

32

 

 

Zirconium

45