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Journal of Scientific & Industrial Research

 

ISSN: 0022-4456

CODEN: JSIRAC (63) (8)  (2004)

VOLUME 63

NUMBER 8

AUGUST 2004

 

CONTENTS

Review Paper

641

Microwave-assisted combinatorial chemistry: The potential approach for acceleration of drug discovery























H Rajak & P Mishra

Basic introduction to microwave theory which will enable researchers to understand at a molecular level the fundamental nature of phenomenon which results in heating and covered literature published which reveals advantageous nature of microwaves to combinatorial chemistry is discussed.

IPC Code: Int. Cl.7 : G  01  N  21/19

 

Papers

655

JIT practices in Indian context: A survey


Vikas Kumar, Dixit Garg & N P Mehta

Examines the implementation of Just-in-Time (JIT) based managerial philosophy in the Indian industries. Specifically, JIT elements, JIT benefits and reasons for slow implementation of JIT in Indian industries are investigated through a survey. The results of this survey support the notion that JIT has potential to increase the organizational performance of Indian industries. The negative impact of JIT on workers and production system are not clear. The disadvantages of JIT production system are therefore highlighted.

663

Fabrication of low cost thermomechanical analyser (TMA)












 

 






S K Disawal, U R Kapadi & D G Hundiwale

Fabrication of low cost thermomechanical analyser (TMA) instrument required for determination of glass transition temperature (Tg) of polymer is reported. The cost reduction during fabrication is so extensive that the entire cost of the instrument can be as low as Rs 6000/- which makes it, in fact, affordable for any College.

IPC Code: Int. Cl.7 : G  01  N  3/62

 

 

667

Treatment of pulp and paper mill effluent













 

Anurag Garg, V V V S S Narayana,
Parmesh Chaudhary & Shri Chand

Pulp and paper mill effluent (COD = 0.7 kg/m3) is treated for the removal of non-biodegradable and toxic compounds by wet air oxidation (WAO) using heterogeneous catalysts. The catalysts include (CuO-ZnO) supported on alumina and ceria as well as lanthanum based perovskites. The activity tests are carried out at 95C under atmospheric pressure conditions. A maximum COD reduction of 83 per cent for (CuO-ZnO)/CeO2 catalyst is obtained in 2 h reaction time at a catalyst conc. of 5 kg/m3 and the initial pH of wastewater sample at 3.0. LaCoO3 catalyst shows the maximum COD reduction in the basic medium (pH 9.0), whereas the two other catalysts are active in acidic region.

IPC Code: Int. Cl.7 : C  02  F  1/100

672

 

Study on axial mixing in open and packed columns with and without pulsation




S Feroz, Z Pramod Rao, P V Ravi Kumar &
V S R K Prasad

 

Axial mixing in open and packed columns with and without the application of pulsation is studied. It is found that the dispersion coefficient increases with increase in flow rate, amplitude of pulsation in both open and packed columns, and with frequency it increases to some extent and then decreases. In packed columns the dispersion coefficient is found to increase with increasing particle diameter. The dispersion coefficient is found to be much higher with pulsation than without pulsation in both open and packed columns. The data in the present study without pulsation follows pure convection model for open column and are found to be in good agreement with Bischoff correlation for packed column. Correlations are developed for the axial dispersion coefficient in open and packed columns considering the effects of all the parameters studied in the present work.

IPC Code: Int. Cl.7 : F  15  D  1/02

 

677

Studies on nickel hydrazinium nitrate (NHN) and bis-(5-nitro-2H tetrazolato-N2) tetraamino cobalt(III) perchlorate (BNCP): Potential lead-free advanced primary explosives

 

M B Talawar, A P Agrawal, J S Chhabra,
C K Ghatak, S N Asthana & K U B Rao

Nickel hydrazinium nitrate (NHN) and bis-(5-nitro-2H tetrazolato-N2) tetraamino cobalt perchlorate (BNCP) are synthesized and characterized. The performance evaluation of NHN in detonator tube indicates that NHN offers a relatively safe alternative to lead styphnate as well as part replacement of lead azide. The results obtained in terms of extent of damage to witness plate are compared with the standard detonator containing ASA (Azide, styphynate and aluminium) composition. Also reports the studies on initiation of RDX/TNT demolition charge by NHN:CE and NCP:BNCP:CE filled in other detonator tube.

IPC Code: Int. Cl.7 : F  42  B  4/30

682

Synthesis, characterization and applications of a new chelating resin containing nitrosocatechol
 

A macroreticular polystyrene based chelating ion exchanger containing nitrosocatechol as the functional group is synthesized. The resin is found to be stable in acidic as well as in basic media. Physicochemical properties of the resin are examined. Sorption capacities of the heavy metal ions on resin are found to be quantitative. Sorption kinetics of metal ions on the resin is studied. Under competitive conditions the system shows higher selectivity of Cd(II). The sorption and desorption characteristics for cadmium(II), lead(II) and mercury(II) are studied with

a view to utilizing the resin for the removal of cadmium(II), lead(II) and mercury(II) as well as preconcentration of cadmium(II) ions from water samples by column operation.

IPC Code: Int. Cl.7 : C  01  B  31/12; C  01  B  21/087

 





 

 

 

 

 

 

 

 

 



Sachin S Pandey & N V Thakkar

 

 

 

689

Alpinia leaf extract: A prospective natural food preservative






K D Sharma & Fumio Hashinaga

Alpinia kumatake leaves, traditionally used for the wrapping of food materials are investigated for their antimicrobial activity against six strains of bacteria, nine strains of moulds and five strains of yeasts. The antimicrobial substance is extracted by using different organic solvents, fractionated, and purified by using silica gel column chromatography and thin layer chromatography. The diethyl ether extract shows higher antimicrobial activity amongst the solvents tried. Both acidic and phenolic fractions have strong inhibitory effect against bacteria, however, it is poor for yeasts and moulds. The inhibitory effects exhibited by the extracts of Alpinia kumatake leaves show that there is a possibility of profitable utilization of the plants growing on barren lands for the production of natural food preservatives.

IPC Code: Int. Cl.7 : A  23  B

Report

694

Insect pest management with green pesticides

S Ignacimuthu

 

Book Review

697

         Smart mobs: The next social revolution
     Reviewer: Bharvi Dutt

Sci-Tech Update

698

         Rapid test for hidden disease developed

 

         Rodent-repellant additives find a market niche

 

         Ozone friendly way keeps water sources clean

 

         Testing kit for a range of toxicities launched

 

         New German research units tackle scientific questions

 

         Synaesthetes: People of the future

 

         Liquid music and spirituality

 

         What has artificial intelligence in common with philosophy?

 

         Promote ID education

 

         Climate symphony

 

         Seismic sonata

 

         Promoting multiple intelligencies in intelligent system

 

         HawkEye-GPs for vehicle monitoring

 

 

 

Author Index

 

Rajak H

641

Narayana V V V S S

667

Chhabra J S

677

Mishra P

641

Chaudhary Parmesh

667

Ghatak C K

677

Kumar Vikas

655

Shri Chand

667

Asthana S N

677

Garg Dixit

655

Feroz S

672

Rao K U B

677

Mehta N P

655

Rao Z Pramod

672

Pandey Sachin S

682

Disawal S K

663

Ravi Kumar P V

672

Thakkar N V

682

Kapadi U R

663

Prasad V S R K

672

Sharma K D

689

Hundiwale D G

663

Talawar M B

677

Hashinaga Fumio

689

Garg Anurag

667

Agrawal A P

677

Ignacimuthu S

694

 

 

Keyword Index

 

Drug

641

Effluent

667

Chelating resin

682

Microwave

641

Wet air oxidation

667

Heavy metals

682

Combinatorial chemistry

641

Catalyst

667

Preconcentration

682

Drug delivery

641

Axial mixing

672

Cd (II) ions

682

Just-in-Time (JIT)

655

Pulsation

672

Column operation

682

Elements

655

Dispersion coefficient

672

Alpinia kumatake leaves

689

Benefits

655

Amplitude

672

Natural food preservatives

689

Thermal analysis

663

Frequency

672

Food preservatives

689

TMA

663

Nickel hydrazinium nitrate

677

Antimicrobial activity

689

Glass transition temperature

663

Explosives

677

Green pesticides

694

Pulp

667

Cobalt(III) perchlorate

677

Pesticides

694

Paper

667

Lead-free explosives

677

Insect pest management

694