Journal of Scientific & Industrial Research

Total visitors: 1,494  since 01-08-05

 

ISSN: 0022-4456

CODEN: JSIRAC (64) (8)  (2005)

VOLUME 64

NUMBER 8

AUGUST 2005

 

CONTENTS

Review

549

Air pollution dispersion studies through environmental wind tunnel (EWT) investigations: A review

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

N Sharma, K K Chaudhry and

C V Chalapati Rao

 

Environmental Wind Tunnel (EWT) has emerged as one of the most widely used technique to carry out a wide rage of air pollution studies. Most of the EWTs throughout the world are located in few industrialized countries. In India, an EWT has been constructed and put operational at the Indian Institute of Technology (IIT), Delhi. This facility is first of its kind in whole of South Asia, the nearest in the east is in Japan and that in the west is in Europe and USA. It is expected that with the operation of first EWT in India, an excellent and world-class facility will be made available to the Indian scientists and researchers, working in this area of research. At present, the investigations are being carried out to understand the complex vehicular pollution dispersion phenomena under urban environmental conditions for Indian traffic and climatic conditions.

IPC Code: F 01 N, G 01 M 9/ 02

 

 

Management and Information Technology

560

An overview of funding pattern of Extramural Research Projects of CSIR

 

Kanta Rani and Sushila Khilnani

Geographical area- and state-university versus institutes- and scientific discipline wise distribution of CSIR funded extramural research projects is presented. University system in certain states needs to place more emphasis on scientific research.

Management and Information Technology

564

Prediction of mine water quality by physical parameters

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Manoj Khandelwal and T N Singh

 

Present paper is an attempt to predict the chemical parameters like sulphate, chlorine, chemical oxygen demand, total dissolved solids and total suspended solids in mine water using artificial neural network (ANN) by incorporating the pH, temperature and hardness. The prediction by ANN is also compared with Multivariate Regression Analysis (MVRA). For prediction of chemical parameters of mine water, 30 data set were taken for the training of the network while testing and validation of network was done by 10 data set with 923 epochs. The predicted results of chemical parameters of mine water by ANN are very satisfactory and acceptable as compared to MVRA, and seem to be a good alternative for pollutants prediction.

IPC Code: G 01 N 33/18

S&T and Industrial Research

571

An experimental investigation on performance characteristics and natural frequency analysis of high-speed carbon – epoxy shaft in aerostatic conical journal bearings

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R B Ingle and B B Ahuja

 

Carbon-epoxy (CE) material has excellent structural properties owing to high specific modulus, high damping and low thermal expansions. In this study, CE shaft was made for the high-speed CNC grinding machines and the centrifuges. The one step composite shaft made of carbon fibers in epoxy matrix was manufactured with 16 layers having stacking angles [0°/90°/45°/-45°] 2S using filament winding process. The experimental set up was made for the static and dynamic analysis and performance characteristics of the CE shaft rotated in aerostatic conical journal bearing at high speed (10000-65000 rpm). The comparison of amplitude of vibration decides the maximum operational speed of the shaft with low vibration in aerostatic conical bearings.

IPC Code: F 16 C 15 / 00, C 08 K 3 / 04

S&T and Industrial Research

581

Extractive spectrophotometric determination of nickel (II) using 4-methyl 2,3-pentanedione dioxime (H2MPDDO)

 

 

 

 

 

 

 

 

Dipak J Garole and A D Sawant

A new analytical reagent 4-methyl 2,3-pentanedione dioxime (H2MPDDO) is proposed for the extraction and spectrophotometric determination of nickel. H2MPDDO reacts with nickel (II) to give yellow coloured complex, which can be quantitatively extracted into chloroform at pH 9.0. The organic extract shows maximum absorption at 370 nm where absorption due to a similarly prepared reagent blank is negligible. The Beer’s law is followed in the concentration range 0.5-10 mg/ml of nickel (II). The molar absorptivity and Sandell’s sensitivity of Ni (II)-(H2MPDDO)2 complex are 3.039x103 l/mol/cm and 0.0192 mg/ml/cm2, respectively. The stoichiometry of extracted species was found to be 1:2 (M:L). The proposed method is rapid, sensitive, reproducible and accurate, and has been satisfactorily applied for the determination and separation of nickel in synthetic mixtures and spent catalyst samples.

IPC Code: C22B23/00; G01J3/00

585

Synthesis, anti-fungal, anti-tumor and anti-inflammatory activities of some new 5- (N- substitutedarylidenehydrazono) –2- (4- chloroaryl)-3- oxo-1, 2, 4- thiadiazolidines

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Paresh Manna and K K Narang

 

5-(N-Substitutedarylidenehydrazono)–2-(4-chloroaryl)-3-oxo-1, 2, 4-thia­dia­zolidines (IVa-e) have been synthesized by oxidative debenzylation and cyclization with bromine in chloroform from the corresponding 5-(4-chloroaryl)-1-(substitutedarylideneamino)–2–S-benzyliso–4-biurets (IIIa-e) or by the oxidation of corresponding 1-(substituted­arylideneamino)-5-(4-chloroaryl)-2,4-thiobiurets (Va-e), obtained from IIIa-e by reductive debenzylation with hydrogen sulphide in a mixture of pyridine and triethylamine. 2-S-Benzyliso-4-biurets (IIIa-e), in turn, were prepared by the condensation of 2-S-benzyliso-1-substitutedarylthiosemi-carbazone (IIa-e) with 4-chlorophenylisocyanate. The compound (1000 mg/ml) containing dichlorogroup (IVe) showed maximum inhibitory effect
(99.6%) against Fusarium udum. The compound possessing dichloro group (IVe) have potent anti-inflammatory and anti-tumor properties as they down regulate NF-kB transcription factor.

IPC Code: C10J1/20

S&T and Industrial Research

594

New analytical technique for the simultaneous determination of aromatic amines in environmental samples

 

 

 

 

E K Janghel, J K Rai, M K Rai and V K Gupta

A new and sensitive analytical technique has been developed for the simultaneous determination of six aromatic amines (aniline, p-nitroaniline, m-nitroaniline, o-nitroaniline, 1,3 phenylenediamine and 1,4 phenylene­dia­mine). It is based on the differential migration of coloured derivatives formed by the reaction of diazotized amines with orcinol on a silica gel plate. Quantitative evaluation of amine is made by visual comparison of intensities of colour by spectrophtotometry. The colour system obeyed Beer’s law in the following working range: aniline, 0.5-6.6; o-nitroaniline, 0.8-7.2; p-nitroaniline, 0.2-3.3; m-nitroaniline, 0.7-6.7; p-phenylene­diamine, 0.3-4.8; and m-phenyldiamine, 0.2-3.4 ppm.

IPC Code: G 01 J 3/457

598

Optimization of apple pomace based medium and fermentation conditions for pigment production by Micrococcus species

 

 

DevenDevender Attri and V K Joshi

The effect of carbon and nitrogen sources on yield and carotenoids production by Micrococcus sp. was studied in apple pomace (AP) based medium. AP (20 g/l) have shown maximum yield of biomass and carotenoids in the basic medium. The addition of fructose (0.2%) to AP-based medium gave the maximum yield of biomass (4.13g/l) and carotenoids (9.97 mg/100g). Sodium nitrate (0.2%) gave the highest production of biomass (4.63 g/l) and carotenoids (9.87 mg/100g). Optimum parameters standardized were: temp, 35 oC; incubation period, 96 h; and pH 6.0.

Energy and Environment

602

Convective effects in air layers bound by cellular honeycomb arrays*

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Pawan Kumar and N D Kaushika

Rayleigh-Benard convection in a fluid (air) layer in presence of transparent cellular structure (honeycomb) is reviewed for application to the engineering design of transparent insulation materials devices. An outline of governing equations of the square celled air temperature, vorticity, stream functions and velocity are presented and it is found that the Nusselt number has a value in the range 1-1.5 for a wide range of Rayleigh numbers in near critical Rayleigh regime. This range may be considered as a trade off region for the engineering design of honeycomb devices. Convection can be suppressed by varying the aspect ratio of honeycomb cell. Honeycomb structure of aspect ratio 10-15 seems suitable for suppression of convection in air layer of depth 5-20 cm for temperature difference (of 20 to 120°.

IPC Code: B21D47/00; F16L59/06

Waste Treatment and Utilization

613

Effect of 2-mercaptoethanoic acid treatment of fluted pumpkin waste (Telfairia occidentalis Hook f) on the sorption of Ni2+ ions from aqueous solution

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

M Horsfall Jnr and A I Spiff

Differential sorption behaviour of pure and acid treated pumpkin waste biomass on the sorption of Ni2+ ion from aqueous solution was assessed by an ensemble of sorption techniques. Biomass was chemically treated by 0.50 N and 1.00 N 2-mercaptoethanoic acid solutions. Sorption capacity calculations from Langmuir isotherm model reveals the following amounts of Ni2+ ions bound per gram of biomass: pure, 12.69; 0.5 N acid treated, 40.0; and 1.0 N acid treated, 42.19 mg/g. The sorption probabilities for Ni2+ onto pure and differentially acid treated biomass were 0.19, 0.22 and 0.31 respectively. This study demonstrates that fluted pumpkin waste could be utilized as low cost, environment friendly biosorbent for the removal of Ni2+ and other trace metals from aqueous solution.

IPC Code: C02F9/00

621

Adsorption of polyphenol oxidases on Celite 545 directly from ammonium sulphate fractionated proteins of brinjal (Solanum melongena)

 

 

 

 

Amjad Ali Khan, Suhail Akhtar and Qayyum Husain

Partially purified polyphenol oxidase (PPO) from brinjal (Solanum melongena) was immobilized on the Celite 545 by simple adsorption at pH 7.0. Celite adsorbed 248 EU of PPO per g of the matrix. Immobilized enzyme preparation exhibited: effectiveness factor ‘η’, 0.62; optimum pH, 9.0; and temp, 40-50 oC. Celite bound PPO retained high stability against thermal denaturation as compared to soluble counterpart. Urea and water-miscible organic solvent treatment significantly enhanced the activity of brinjal PPO; enhancement was significantly more pronounced in case of immobilized enzyme preparation. Celite bound brinjal PPO had no loss in enzyme activity even when exposed to very high amount of trypsin. Immobilized PPO preparation exhibited a marked resistance against inactivation mediated by washing detergents such as Surf Excel and Rin Powder.

IPC Code: C12N11/00, C02F3/34

Author-Reader Platform

627

Instructions to contributors

 

ABBREVIATIONS

WORDS

UNITS

Approximately

approx

Hour

h

Concentration*

conc

Litre

l

Diameter

diam

Minute

min

Equation 1

Eq (1)

Percent*

%

Figure

Fig

Quintal

qtl

Specific gravity

sp gr

Second

sec

Temperature*

temp

Tonne

ton

Volume

vol

Year*

yr

*In running text will be full and in abstracts and in brackets will be abbreviated

 

Author Index

 


Ahuja B B

571

Akhtar S

621

Attri D

598

Chaudhry K K

549

Garole D J

581

Gupta V K

594

 

 

Husain Q

621

Horsfall Jr M

613

Ingle R B

571

 

Janghel E K

594

Joshi V K

598

 

 

Kaushika N D

602

Khan A A

621

Khandelwal M

564

Khilnani S

560

Kumar P

602

 

 

Manna P

585

 

 

Narang K K

585

 

Rai J K

594

Rai M K

594

Rani K

560

Rao C V C

549

 

 

Sawant A D

581

Sharma N

549

Singh T N

564

Spiff A I

613


 

 

Keyword Index

 


Acid mine drainage

564

Adsorption

613

Aerostatic conical bearing

571

Air pollution

549

Aniline

594

Anti-fungal

585

Anti-inflammatory

585

Anti-tumor

585

Apple pomace

598

Aromatic diamine

594

Aromatic nitro amine

594

Artificial neural network

564

Atmospheric boundary layer

549

 

 

Biocolour

598

Biomass

598

Brinjal

621

 

 

Carbon-epoxy shaft

571

Carotenoids

598

Celite 545

621

Characterization

585

Chemical parameters

564

Convection suppression

602

Critical Rayleigh number

602

 


Detergents

621

 

 

Eccentricity ratio

571

Environmental samples

594

Environmental wind tunnel

549

Extractive spectrophotometry

581

Extramural research projects

560

 

 

Fluted pumpkin

613

 

 

Heavy metals

613

Honeycomb

602

 

 

Immobilization

621

 

 

Kinetics

613

 

 

4-Methyl 2,3-pentanedione dioxime

581

Micrococcus sp

598

Mine water

564

 

 

Nickel determination

581

 

 

Organic solvents

621

 


Physical parameters

564

Polyphenol oxidase

621

 

 

Research funding

560

 

 

Separation

581

Similarity considerations

549

Spetrophotometry

594

Stability

621

Stability theory

602

Stacking sequence

571

Static and dynamic analysis

571

Synthesis

585

 

 

1,2,4-Thiadiazolidines

585

TLC

594

Tracers studies

549

Transparent insulation material

602

 

 

Universities/institutions

560

 

 

Velocity profile

549

 

 

Waste

598

Waste management

613

Water-miscible

621