Journal of Scientific & Industrial Research

VOLUME 68

NUMBER 8

AUGUST 2009

CONTENTS

Review

657

Nanomaterials in science and technology



Ishwar Das1,* and Shoeb A Ansari2


1
Chemistry Department, DDU Gorakhpur University, Gorakhpur 273 009, India

2Chemistry Department, St Andrews College, Gorakhpur 273 009, India

Recent work on nanomaterials and their applications in science, technology, biology and medicine has been reviewed. Nanomaterials of different shapes and geometries and their characterization techniques are described. Methods for synthesis of different types of nanomaterials have been explained.

Management & Information Technology

668

Optimization of age replacement policy using reliability based heuristic model



Mojtaba Mahdavi 1,* and Mohamad Mahdavi 2


1
Young Researchers Club, Islamic Azad University, Najafabad Branch, Isfahan, Iran


2Department of Industrial Engineering, Islamic Azad University, Najafabad Branch, Isfahan, Iran

This paper explores a reliability based heuristic mathematical model for basic and classical age replacement policy. Using new model, optimal preventive age replacement policy is determined to maximize system reliability. For special systems having exponential density function with constant hazard function, a different simple decision-making model is proposed. A case study of two industrial machines was conducted using weibull density and exponential density function.

674

A trend-based patent alert system for technology watch


















Türkay Dereli* and Alptekin Durmuşoğlu

Department of Industrial Engineering, Gaziantep University, 27310 Şehitkamil, Gaziantep, Turkey

This paper presents development of a trend-based patent alert system (PAS) to find out current trends in patents on industrial technologies. PAS retrieves data of associated patent counts using extended markup language (XML). Implementation of PAS on real data of textile technologies extracted from online patent database search spaces detected realistic trends for making policy decision on existing technology upgradation and research planning.

680

Optimized fuzzy-neuro system for scheduling wafer fabrication


Toly Chen*


Department of Industrial Engineering & Systems Management, Feng Chia University, Taichung City 407, Taiwan

Optimized fuzzy-neuro system is proposed to improve performance of scheduling jobs in a wafer fabrication factory (WFF). Fluctuation smoothing rules are normalized. Remaining cycle time of a job is accurately estimated by applying self-organization map with fuzzy back propagation network (SOM-FBPN). Division operator is applied instead of traditional subtraction operator to enhance responsiveness of fuzzy rule. Production simulation using proposed methodology outperformed existing approaches in reducing average cycle time and cycle time standard deviation.

S & T and Industrial Research

686

Taguchi method and ANOVA: An approach for process parameters optimization of hard machining while machining hardened steel



Bala Murugan Gopalsamy1*, Biswanath Mondal1 and Sukamal Ghosh2

1Central Mechanical Engineering Research Institute, Durgapur 713 209, India

2National Institute of Technology, Durgapur 713 209, India

In this paper, Taguchi method is applied to find optimum process parameters for end milling while hard machining of hardened steel. A L18 array, signal-to-noise ratio and analysis of variance (ANOVA) are applied to study performance characteristics of machining parameters (cutting speed, feed, depth of cut and width of cut) with consideration of surface finish and tool life. Chipping and adhesion are observed to be main causes of wear. Results obtained by Taguchi method match closely with ANOVA and cutting speed is most influencing parameter. Multiple regression equations are formulated for estimating predicted values of surface roughness and tool wear.

696

Evaluation of normal Gait using electro-goniometer


Neelesh Kumar1, Dinesh Pankaj1, Ankit Mahajan1, Amod Kumar1 and B S Sohi2


1Central Scientific Instruments Organisation (CSIO), Chandigarh 160 030, India

2University Institute of Engineering & Technology (UIET), Chandigarh 160 014, India

A potentiometer-based electro-goniometer has been developed to measure knee angle of normal healthy individuals (5), who were instructed to walk slow, normal and brisk for walking distance of 17 m. Data acquisition and analysis on acquired data were done using LabVIEW. For individuals with different physical parameters, it was found that frequency (steps/min) remains the same irrespective of varying velocities. Step length reduces as individuals walk without shoes.

699

Novel plant based formulations for short term preservation of animal skins




K Vijayalakshmi, R Judith and Suseela Rajakumar*



Microbiology Laboratory, Central Leather Research Institute, Chennai 600 020, India

This study presents monitoring at different temperatures and time of animal hides and skins subjected to bacterial degradation. Rate of collagen and non-collagenous protein degradation and microbial population dynamics were found to vary with temperature and storage period. Microorganisms (proteolytic, collagenolytic and keratinolytic) were found responsible for skin deterioration. Acalypha indica based formulation for curing animal skins was found viable, cost-effective and eco-friendly, reducing total dissolved solids (TDS) level to a considerable extent as compared to salt curing methods.

708

Reactive extraction of propionic acid using Aliquat 336 in MIBK: Linear solvation energy relationship (LSER) modeling and kinetics study




Amit Keshav1, Kailas L Wasewar2* and Shri Chand3

1Department of Chemical Engineering, National Institute of Technology (NIT), Raipur 492 010, India

2Department of Chemical Engineering, Visvesvaraya National Institute of Technology (VNIT), Nagpur 440 011, India

3Department of Chemical Engineering, Indian Institute of Technology (IIT) Roorkee 247 667, India

This study presents linear solvation energy relationship (LSER) modeling of reactive extraction of propionic acid using Aliquat 336 in MIBK as diluent. Reaction was slow in Aliquat 336 + MIBK with rate constant at 0.0079 (m3 /kmol)0.55 s-1. Order of reaction with respect to acid and Aliquat 336 was 1 and 0.9 respectively. Modeling of reactive extraction equilibria using LSER was carried out and predicted a close resemblance of experimental data.

714

Solid-state fermentation of waste cabbage by Penicillium notatum NCIM NO-923 for production and characterization of cellulases





Arpan Das1 and Uma Ghosh2*

1Department of Microbiology, Vidyasagar University, Midnapore 721 102, India

2Food Technology and Biochemical Engineering Department, Jadavpur University, Kolkata700 032, India

Solid-state fermentation (SSF) of waste cabbage was carried out by Penicillium notatum NCIM NO-923 for production of extracellular enzymes. Highest activities of carboxymethyl cellulase (CMC) (817.19 ±1.2 IU/gds) was obtained at 30°C and 48 h fermentation time and that of filter paper activity (FPA) (67.49 ±1.33IU/gds) was obtained at 30°C and 24 h fermentation time. SSF of mixed substrate (cabbage and bagasse; 3:2 w/w) resulted in increase in CMC activity by 3277.3 ±1.22 and FPA by1280.76 ±1.33. Both enzymes exhibited significant thermo stability up to 50°C.

Energy and Environment

719

Evaluation of selected biomass for charcoal production



P Sugumaran and S Seshadri*



Shri AMM Murugappa Chettiar Research Centre (MCRC), Taramani, Chennai 600 113, India

Text Box: Char Yield, %Casuarina equisetifolia L. and Lantana camara L. leaf litter, sugarcane bagasse and empty oil palm fruit bunch (Elaeis guineensis Jacq.) were converted into charcoal using carbonization process. Calorific value of fresh biomass and pyrolysed charcoal, respectively, was maximum in C. equisetifolia L. leaf litter (18.48 MJ/kg and 29.89 MJ/kg) and minimum in oil palm fruit bunch (16.96MJ/kg & 18.46MJ/kg).

Temperature, °C

 

 

Waste Treatment and Utilization

724

Degradation and mineralization of victoria blue B dye in a slurry photoreactor using advanced oxidation process



[Brijesh Pare1*, Pardeep Singh1 and S B Jonnalgadda2

1
Laboratory of Photocatalysis, Department of Chemistry, Govt Madhav Science Post Graduate College, Vikram University, Ujjain 456 010, India

2University of KwaZulu-Natal, Westville, Durban, South Africa

Photocatalysed degradation of victoria blue B (VBB) dye has been studied in aqueous suspension of zinc oxide using visible spectrophotometric analysis technique. Decrease in COD and increase in CO2 and NO3- concentration indicated mineralization of dye. Zinc oxide proved potentially efficient photocatalyst for proposed visible and solar light system.

Waste Treatment and Utilization

730

Photo catalytic degradation of model textile azo dyes in textile wastewater using methylene blue immobilized resin dowex-11


R C Meena*and Ram Babu Pachwarya

Department of Chemistry, Jai Narain Vyas University, Jodhpur 342 001, India

This study presents degradation of textile azo dye by newly developed photo catalyst (methylene blue immobilized resin dowex-11; particle size, 20-50 mesh), which is a cheap and a very good alternative to traditional technologies for industrial application. Activity of catalyst remains unaffected on continuous use.

Author-Reader Platform

735

Instructions to contributors

 

 

 

 

 

Author Index

Ansari S A

657

 

 

Chand S

708

Chen T

680

 

 

Das A

714

Das I

657

Dereli T

674

Durmuşoğlu A

674

 

 

Ghosh S

686

Ghosh U

714

Gopalsamy B M

686

 

 

Jonnalgadda S B

724

Judith R

699

 

 

Keshav A

708

Kumar A

696

Kumar N

696

 

 

Mahajan A

696

Mahdavi Mohamad

668

Mahdavi Mojtaba

668

Meena R C

730

Mondal B

686

 

 

Pachwarya R B

730

Pankaj D

696

Pare B

724

 

 

Rajakumar S

699

 

 

Seshadri S

719

Singh P

724

Sohi B S

696

Sugumaran P

719

 

 

Vijayalakshmi K

699

 

 

Wasewar K L

708


           Keyword Index

Acalypha indica

699

Aliquat 336

708

Amido Black 10B

730

ANOVA

686

Applications in science & technology

657

Azo dyes

730

 

 

Biomass

719

 

 

Calorific value

719

Carbonization

719

Characterization techniques

657

Charcoal

719

CMC

714

Computer-aided innovation (CAI)

674

Corrective replacement

668

 

 

Degradation

724, 730

Degradation/deterioration

699

 

 

End milling

686

 

 

FPA

714

 

 

Gait cycle

696

Goniometer

696

 

 

Hard machining

686

Hazard function

668

Hydroxyproline

699

 

 

Kinetics

708

Knee flexion angle

696

 

 

LSER model

708

 

 

 

 

Methylene Blue immobilized resin Dowex-11

730

MIBK

708

Mineralization

724

Mixed substrate

714

 

 

Nanomaterials

657

 

 

Optimized fuzzy-neuro system

680

 

 

Patent alert system (PAS)

674

Penicillium sp.

714

Photo catalyst

730

Photocatalysis

724

Preservation

699

Preventive replacement

668

Propionic acid

708

Pyrolysis

719

 

 

Reactive extraction

708

Regression analysis

686

Reliability

668

 

 

Scheduling

680

Skin/hide

699

SSF

714

Step length

696

Stride length

696

 

 

Taguchi methods

686

Technology tracking

674

Trend extraction

674

 

 

Visible light

724

 

 

Wafer fabrication

680

 

 

Zinc oxide

724