Abstract of Volume 21(2), 2009

Potentials of Fonio (Digitaria iburua) for production of breakfast meal
Victoria Funmilayo Abioye and Grace Oluwakemi Babarinde
Abstract : This study was carried out to develop a product from fonio, Digitaria iburua, and to evaluate the physical, chemical and sensory attributes of the developed product. Fonio grain was cleaned, steam cooked and drum dried to give a flaking roll. The thickness and the colour of the developed fonio meal was comparable to that of the commercial oat. Proximate composition of the meal indicated a moisture content of 9.02%; protein, 8.44%; fat, 1.49%; ash, 0.56%; carbohydrate, 80.66% and crude fibre, 0.71%. It was also high in calcium (8.14mg/100g), phosphorus (28.40mg/100g) and iron (10.74mg/100g). The amino acid profile was attractive having six of the essential amino acids: lysine (32.26mg/100g), threonine (11.95mg/100g), methionine (6.7mg/100g), leucine (38.89mg/100g), iso-leucine (17.21mg/100g) and tryptophan (4.53mg/100g). In sensory evaluation, the panellists rated the product better than commercial oat meal, but statistical analysis indicated that the difference between the meal and a commercial oat product was not significant (P>0.05).

Key words: Fonio (Digitaria iburua), acha, breakfast meal, traditional food.


Acoustical Studies on Solutions of Surfactant - Polymer in Ethanol
D. Geetha1*, T. Thilagavathi,1 P.S. Ramesh2 and C. Rakkappan
2
Abstract : Ultrasonic velocity measurements have been made in an anionic surfactant sodium laureyl sulphate (SLS) with Dextrin (Dx), Hydroxy ethyl cellulose (HEC) and Hydroxy Propyl cellulose (HPC) in ethanol solution as a function of concentration, at a fixed frequency (2MHz). SLS with different polymers are prepared and dissolved in different concentration ratio (1:9 to 9:1). Limiting parameters have been used to explain the salvation of surfactant-polymer molecules.

Key words: Dextrin, Sodium lauryl sulphate, Hydroxy ethyl cellulose, Hydroxy propyl cellulose.


Anisotropy in supercurrent density in layered cuprate superconductors
Mahipal Singh
Abstract : Due to layered structure, the electronic conduction in high-Tc cuprate superconductors is highly anisotropic. Therefore, in the present work, we have made an attempt to study the anisotropy in supercurrent density in layered cuprate superconductors likeYBa2Cu3O6+x. We have considered tight binding bilayered Hubbard Hamiltonian. The situation considered here for the bilayered cuprates is similar to a SIS junction. Using Green function technique, we have got the expressions for superconducting order parameters, carrier density and supercurrent densities.The numerical analysis shows that the anisotropy in supercurrent density depends on the temperature and various other microscopic parameters of the model Hamiltonian. The anisotropy in supercurrent density increases with temperature and diverges as system reaches towards the superconducting transition temperature. On increasing the carrier density within the plane, the anisotropy in supercurrent density decreases because around optimal doping region, bilayer system(YBaCuO) behaves like almost isotropic three dimensional superconductors. On increasing the interlayer attractive interaction, the anisotropy in supercurrent density decreases. It is also shown that when interlayer attractive interaction (W) is just equal to the intralayer pairing interaction (U), the anisotropy in supercurrent density vanishes i.e. the bilayer Quasi-2D system becomes almost isotropic(three dimensional) in supercurrent flow in the superconducting state. We have shown, using tight binding bilayer Hubbard model within BCS meanfield formalism, that the anisotropy in supercurrent density depend on various microscopic intra and interlayer interactions as well as on the thermodynamics of superconducting order parameter in an essential way. Finally we have compared our theoretical results of anisotropy in supercurrent density with the existing experimental findings in bilayered cuprate superconductors.

PACS: 74.50.+r, 74.72.Bk, 74.81.Fa.

Key words: High-Tc cuprates, Josephson effects, Anisotropy in supercurrent density


Darlington pair amplifiers in cascade
Satyendra Nath Tiwari, Arvind Kumar Dwivedi and SachchidaNand Shukla*
Abstract : Qualitative analysis of two-stage Darlington pair amplifier is carried out. Enhancement in voltage and current gain is observed with distinct behaviour of bandwidth. This two-stage amplifier may be quite useful for amplification of small signals of mili-volts range and suitable for various analog electronics and communication applications.

Key words: Small Signal amplifiers, Darlington amplifiers, Electronic Circuit Simulation.


Fault-related geohazards in Iran
Ghodrat Torabi
Abstract : Geologically, Iran is the land of faults. Except in northern part, the Iran is an arid region and for the centuries the Iranians selected the place of springs for living and village or city establishing. But most of these places are fault-related and faults supply the groundwaters. There are different geohazards in Iran that are in relation with faults: 1- Earthquake, 2- Ophiolites and asbestos minerals, 3- Radioactive, toxic, and heavy metal elements mineralization, 4- Radon and CO2 releasing.

Key words: Geohazard, Fault, Water, Earthquake, radioactive, toxic, Iran


Optical Binding Between Dielectric Particles Through Millimeter Wave Propagation
K.B. Singh1 and Mukesh Kumar
2
Abstract : We show that the optical binding between dielectric particles through millimeter wave propagation at 30-50 GHz having bulk mixture of two dielectric bodies at different sizes. We suppose the dielectric particles having dimensionless than the wavelength of the interacting light under millimeter wave propagation. An optimum increase in binding energy was noted for all cases. This study further indicates the suitability of this technique for construction of two or three-dimensional arrangement of objects. The observed dependence of the separation of optically bond particles on millimeter wave propagation is in good agreement with earliest theoretical predictions.


Kinetics of oxidation of mixture of glycine + anthranilic acid by chromic acid in presence of sulphuric acid
RAJEEV KUMAR SAHU,1 B .K. MISHRA,2 N.K. THAPALIYAL3 and D.P. SINGH4
Abstract : Kinetics of oxidation of mixture of glycine + anthranilic acid by chromic acid in presence of sulphuric acid have been studied. The probable products are benzoic acid, formaldehyde, ammonia and carbon dioxide. The rate of oxidation increase with increase in the concentration of sulphuric acid. Ostwald isolation method is used for study the rate of the reaction. The rate of reaction with respect to hydrogen ion is one. Kinetics of oxidation of mixture of glycine + anthranilic acid by chromic acid shows first order reaction. The kinetic parameters such as energy of activation, catalytic constant, temperature coefficient are calculated.


Study of giant oscillations of thermoelectric power of the normal metal in the presence of magnetic field using electronic topological transition (ETT)
S.B. Mahto,* J.P. Mahto,** and S.R. Pandit
Abstract :Using the theoretical model developed by Ya. M. Blanter et. al. (Nuovo Cemento 12, 1900 (1900). We have studied the giant oscillations of thermoelectric power of the normal metal in the presence of magnetic field. This is achieved because of electronic topological transition (EET). Our theoretically evaluated result indicates the anharmonical behaviour of the thermoelectric power in the region .


Chemical reaction Effects on Transient MHD Free Convection and Mass Transfer Flow of Dissipative Fluid with Heat Generation and Thermal Diffusion past an infinite vertical plate
V. RAJESH*, CH. SRIDEVI** and S. VIJAYA KUMAR VARMA***
Abstract : The effects of chemical reaction on transient MHD free convection and mass transfer flow of dissipative fluid past an infinite vertical porous isothermal plate in the presence of heat generation, thermal diffusion and viscous dissipation is studied numerically. The Problem is governed by a coupled nonlinear system of partial differential equations. This system is solved numerically by applying explicit finite difference method. The effect of chemical reaction parameter (K) in the presence of Heat generation parameter (H) and Soret number (S0) is examined on Velocity, Temperature and Concentration. The numerical values of the skin friction, the rate of heat transfer and the rate of mass transfer are entered in tables. It is found that chemical reaction parameter K decreases velocity and concentration in the presence or no presence of Heat source parameter H and Soret number S0. Further, it has no effect on temperature.

Key words : Transient MHD free convection flow, Dissipative fluid, infinite vertical porous isothermal plate, Chemical reaction, Explicit finite difference method.


Effect of fungal metabolites (culture filtrate) on viability of buck wheat (Fagopyrum esculentum L.)
Sarika Kaler
Abstract : The metabolites of many fungi, secreted in culture may affect seed germination and growth of seedlings. The fungi associated with stored seeds also responsible for seed deterioration and reduction in germination potential probably due to secretion of toxic substance2,6. In the present investigation attempts have been made to ascertain the effect of culture filtrate of seed borne fungi associated with buckwheat seeds upon seed germinability and seedling growth.

Key words: Fungal metabolite, Culture filtrate, germination potential, toxic substance. Pathogen culture medium.


Study of Electron relaxation time in the vicinity of Electronic Topological Transition (ETT) in the presence of magnetic field
S.B. Mahto,* J.P. Mahto,** and S.R. Pandit
Abstract : Kinetic phenomena in the vicinity of electronic topological transition predicted by Lifshitz have been widely studied both theoretically and experimentally. Using one electron Green's function in the framework of temperature diagrammatic technique developed by Ya. M. Blantr et. al. Nuovo Cimento vol. 12, 1900 (1990), we have studied the relaxation time for EET transition. Our result shows that there is an influence of magnetic field of EET relaxation time .


Analysis of Non-Newtonian Fluid Flow in a Stenosed Artery
Sapna
Abstract : The numerical illustration presented at the end of the paper provides the results for the resistance to flow, apparent viscosity and the wall shear stress through their graphical representations. It has been shown that the resistance to flow, apparent viscosity and wall shear stress increases with the size of the stenosis but these increases is comparatively small due to non-Newtonian behavior of the blood indicating the usefulness of its rheological character in the functioning of the diseased arterial circulation. Few comparisons with the existing results have been made in order to validate the applicability of the present model.

Key words : Non-Newtonian fluid, Apparent viscosity, Stenosis, Rheological character, Resistance to flow.


Hydrochemistry and groundwater quality assessment in parts of Burhanpur District, Madhya Pradesh
Seraj Khan
Abstract : The quality of groundwater is, generally considered good in nature because it is usually free from odour, turbidity, colour and dissolved minerals ions. The concentration of mineral ions and their type can affect the usefulness of groundwater for different purposes in domestic, agriculture and industrial sectors. The effective management of groundwater can only be practiced when quality as well as quantity of groundwater is properly assessed.

In view of that, the present study is aimed to assess the groundwater quality of multiples aquifers for groundwater management in parts of Burhanpur district, Madhya Pradesh. In all 27 and 15 numbers of water samples were collected from observation wells representing the shallow aquifer and deeper aquifers respectively during pre monsoon period. The groundwater quality criteria for drinking/domestic utilization is decided on the basis of physical and chemical parameters standardized by different agencies. The physico-chemical parameters of groundwater have been compared with guideline of ICMR1, BIS2 and WHO3 which reveal all the physico-chemical constituents are within permissible limit for drinking purpose. In the ambit of USSL classification, Residual Sodium Carbonate, Wilcox Classification and Bureau of Indian Standards, the interpretation of analytical data show that the groundwater is suitable for irrigation purpose too. Therefore, qualitatively groundwater can be easily managed in the study area.

Key words : Shallow and deeper aquifers, Physico-chemical, sodium and salinity hazards, SAR, RSC.


Millimeter wave propagation through the layers of dielectric bodies
Mukesh Kumar1*, Dilip Kumar Shahi2, Manoj Kumar3 and Kumar Sunil Pradhan
4
Abstract : The present paper deals with the propagation of millimeter wave through the layers of dielectric bodies. Theoretical investigation has been carried out to estimate the absorption loss (Pabs) in which the wave guide has been utilized. For simplicity of the problem each layers of the dielectric body has been considered as a wave guide and entire layers equated as a number of transmission lines in cascade. Consequently the equation for reflection coefficient and transmission coefficient has been developed. It will be further utilized for the evaluation of absorption loss as function of frequency and the particle density. The result has good agreement with theoretical value.


Frequency dependent studies of acoustic parameters in binary mixture of non-polar and polar liquid
G. Nath1 and R. Paikaray
2
Abstract : The binary mixture of di-isopropylether (DIPE) and toluene has been studied extensively from the view point of their acoustic behaviour at different frequencies (1MHz, 3MHz and 5MHz) and constant temperature 303K. Experimental values of ultrasonic velocity and density are used to compute the derived parameters. Further, these values are used for the calculation of excess parameters, since excess parameters are a better measure of intermolecular interactions than the derived ones. The variations of these excess parameter with frequencies are useful in several industrial and technological processes.

Key words: Binary liquid mixture, ultrasonic velocity, inter molecular free length isentropic compressibility and acoustic impedance.


Infection rates of cyclops vector of Dracunculiasis in endemic communities of Ekiti State Nigeria
Adewole S.O.
Abstract : Studies on the distribution, infective rate and relative abundance of copepods-Cyclops, the intermediate host of guinea worm (Dracumculus medinensis) were carried out in 42 sources of drinking water. These were sources commonly used by the residents in 18 randomly selected guinea worm endemic communities in three Local Governments namely Ekiti West; Ekiti South West ado Ekiti Central (Ado-Local Government), all in Ekiti State. 21,405 cyclops were examined between 2003/2004, out of which 8.0% were found infected with larvae of Dracunculus medinensis and during 2004/2005, 5.7% of 11,982 cyclops were infected.

The density of infected Cyclops was highest in April, 2004, 11.1% with a density of 469/litre while infected Cyclops population was highest in March, 2005, 8.3% with a density of 334/litre.

The mean intensity of infection for 2003/2004 was 95.4±87.4 while that for 2004/2005 was 37.6±20.1. There wes a significant (P<0.05) yearly reduction in the percentage/population of infected Cyclops between 2003/2004 and 2004/2005. There was a positive correlation (r=0.63; P<0.05) between vector infectivity and prevalence of the disease in the study area. Three species of Cyclops encountered are Cyclops leuckarti. Thermocyclops inopinus and Halicyclops. These are vectors of guinea worm that play a significant role in the transmission of the disease.

Key words : Cyclops, Dracunculus medinensis (guinea worm), infection, density, disease and communities.


Theory for transport properties of semiclassical fluids
Manoj Kumar*
Abstract : The effective diameter hard sphere theory is employed to estimate the transport properties (TP's) of semiclassical fluids. The TP's of the fluids are expressed in terms of a classical hard sphere (HS) fluid of properly chosen hard sphere diameter. The explicit expressions for the shear viscosity and thermal conductivity for the HS fluid are given. The theory is applied to estimate the TP's of fluids Ar and Ne. The agreement is found to be fairly good.

Key words : Semiclassical fluids, quantum corrections and transport properties.


Metal Chelates of anti-Tubercular Isonicotinic Acid hydrazide Drug with Pt Metals
R. N. Pandey*, Prasashti Pandey, R. N. Sharmaa and Gunjan Kumari
Abstract : Bis-chelates with Pd(II) and Pt(II) and Tris-chelates with Ru(III), Rh(III) and Ir(III) with anti-tubercular isonicotinic acid hydrazide drug have been isolated and characterized on the basis of micro analytical, Magnetic Moment, electronic and IR spectral data. The deprotonation of enol tautomeric form of -OH group occurs at pH=8 and the ligand acts as bidentate (N O donor). Metal-ligand vibrations in far IR spectra have also been located and tentatively assigned.


Millimeter wave propagation through vertical layer of dust particles
Mukesh Kumar1*, Dilip Kumar Shahi2, Nirmal Kumar3 and Kumar Sunil Pradhan
4
Abstract : This paper deals with the propagation of millimeter wave through the layers of dielectric bodies. In order to obtain the expression for power loss each layer has been assumed as a dielectric wave guide tied with dielectric particles. Using the concept of electromagnetic wave propagation through a wave guide the expression for dielectric loss has been obtained. It has been found that the dielectric loss increases with increasing frequency and decreases with increasing visibility. It has been also found that the dielectric loss of the incident energy dependence heavily on particle size for different frequencies and visibility. In the lower range of the frequency the dielectric loss dominates over other losses, however at the higher range of the frequency the absorption loss has got its minimum value.

Key words: Dielectric loss, Visibility, Absorption loss.


Effect of Distillery Waste Water Irrigation on Agronomical Characteristics of maize (Zea mays) at germination stage
Manjulshree
Abstract : The investigations indicate that high concentration of distillery waste (25-50%) inhabits germination as well as reduce seedling height and dry matter production. 10% of the waste in the irrigation water however proved to be beneficial. Reduction in root length was also observed with all dilutions.

Keywords : Distillery Waste, Germination, Zea mays.


A Study of Visual Binary Stars - Calculation of Orbital Parameters of WDS 04374-0951 & WDS 18384+0850
1S. PATTNAIK, S. K. KAMILA2 and G. S. ROY3*
Abstract :A Study of Binary Stars - its Detection, Resolution & Classification has been undertaken using general diffraction integral. The calculation for the orbits of visual binary stars: WDS04374-0951 & WDS 18384+0850 have been undertaken along with the determination of the mass, dynamical parallax and ephemerid by using data available in ADS.

Key words: Washington Double Star (WDS), Binary Stars, Orbital Parameters


To Demarcate Groundwater Favorable Zones Through Geophysical and GIS study in Parivillikottai Firka, Tuticorin District, Tamilnadu, India
S.Kumaravel1, B.Gurugnanam1, M.Suresh1, M.Senthilkumar1 and G. Sivanatarajan
2
Abstract : GIS is a powerful tools in analysing the multiple thematic maps at a time. GIS analysis is carried out in the present study to locate favorable shallow and deep groundwater bearing zones. To do this subsurface investigation and its interpretation were carried out through geophysical survey. Fifteen vertical electrical soundings (VES) survey were carried out in the study area. The field data were interpreted by RESIST software to determine the resistivity and thickness of the different layers. By using conventional GIS method, the spatial distribution maps for fracture zone resistivity and thickness zones were prepared. Integration of the said themes was done it in GIS. First layer fracture zone thickness and resistivity maps were overlaid and the polygon combinations were brought out. 9 combinations of 1LR-1LT, 1LR-1MT, 1LR-1HT, 1MR-1LT, 1MR-1MT, 1MR-1HT, 1HR-1LT, 1HR-1MT and 1HR-1LT were arrived, and designated as output map 1. This map shows that the shallow depth groundwater combination of (1LR-1HT and 1LR-1MT) covers an area of 50.39 Km2 and 28.73 Km2. Similarly, the second fracture zone thickness and resistivity maps were superposed. The result map designated as output map 2 gives a combination of 9 polygons of 2LR-2LT, 2LR-2MT, 2LR-2HT, 2MR-2LT, 2MR-2MT, 2MR-2HT, 2HR-2LT, 2HR-2MT and 2HR-2LT. This map shows that the deeper depth groundwater combinations of (2LR-2HT and 2LR-2MT) for deep groundwater zones were delineated and occupies an area of 3.16 Km2 and 13.10 Km2.

Key words: GIS (Geographic information system); LR (Low Resistivity); MR (Medium Resistivity); HR (High Resistivity); HT (High Thickness); MT (Medium Thickness); LT (Low Thickness);


An evaluation of thermoelectric power oscillation in the vicinity of electronic topological transition (ETT)
S.B. Mahto,* J.P. Mahto** and S.R. Pandit
Abstract : Using the theoretical model developed by Ya. M. Blanter et. al. (Nuovo Cemento 12, 1900 (1990) and taking into account the possibility of Fermi surface topology transformations in the presence of magnetic field, the expression in different regions of ETT vicinity has ben obtained. On analysing in weak and strong magnetic field, Our analysis shows field dependence of the thermoelectric coefficient. The peaks weak linearly increases with increasing of the magnetic field.


Effect of variable viscosity on the peristaltic motion of a Jeffrey fluid in a symmetric channel
M. Sreedhar Babua, N. Bhaskar Reddya and M. V. Subba Reddy
b
Abstract : The peristaltic motion of an incompressible Jeffrey fluid with variable viscosity in a two-dimensional symmetric channel under the long wavelength and low Reynolds number assumptions is investigated. Analytical solutions are obtained for axial velocity and axial pressure gradient. The effects of viscosity parameter a, material parameter l1 and amplitude ratio f on the pumping characteristics and the friction force are studied through graphs in detail.

Key words: Peristaltic flow, Jeffrey fluid, variable viscosity.


Spectral Studies on Metal(II) Chelates of anti-Tubercular Isonicotinic acid Hydrazide Drug
R.N. Pandey*, Sanjay Kumar Singh, A.K. Nag and Manoj Ranjan
Abstract : Bis- chelates of anti-tubercular isonicolinic hydrazide drug (N,O) have been prepared and Characterised on the basis of various physico - chemical data using Mg(II), Co(II), Ni(II), Cu(II), Zn(II), Cd(II) and Pb (II) ions. The most convincing structural evidence for these chelates is their electronic and infrared spectra. The ligand field parameters in electronic spectra and metal-ligand vibrations in far-ir are assigned.

Key words: Metal(II) chelates, isonicotinic acid hydrazide, structural investigation, Ligand-field parameters.


Study on effects of soap and detergent waste on bacterial population in upper lake Bhopal M.P. (India)
Shazia Ali and Praveen Jain*
* Centre for IT & Basic Sciences M.P. Bhoj Open University, Bhopal (M.P.)
Abstract : The present study aims to assess the influence of wastes coming from washing clothes on TOTAL COLIFORMS (TC) which are present in lakes. Two locations were chosen for the monitoring in the Upper Lake of Bhopal city. The standard method as prescribed by APHA was followed during sampling and analytical study. Maximum counts of the TC was observed at stream of water near which washing activity is going on. In drinking water coming from upper lake the coliforms were observed nil due to effective chlorination. Counts of harmful bacteria was increased due to wastes coming from soap and detergent effluents.

Key words : Soap and Detergent effluents, bacterial population, Upper lake.


Application of coal fly ash from Kota Super Thermal Power Station and water hyacinth mix in cultivation of Calendula
*KRISHNA RANI and **KALPANA S.
Abstract : Biomodification of coal fly ash with water hyacinth (Eichornia) with respect to improvement in physicochemical properties was done for the cultivation of Calendula. Few pot experiments were conducted to study the effect of levels of biomodified coal fly ash (CFA) on physicochemical properties of soil on the yield parameters of Calendula. Physicochemical studies have been carried out for different composts obtained by successive replacement of biomodified CFA for soil/earth in constituents of original and reference compost. In present studies CFA and water hyacinth of local origin were used. Increase in rate of growth and improvement in quality of produce was observed with the increase in percentage of biomodified CFA up to 80% with lesser use of fertilizers and irrigation water.


Design, development and study of a demonstration model solar updraft tower-a novel approach for generating electricity from solar thermal convective acceleration
S. Rugmini Radhakrishnan
Abstract : The solar updraft tower is a renewable energy device which uses solar thermal energy to provide upward convective acceleration to the inflow air by greenhouse effect. The hot air rising through the chimney stack drives the turbine and the rotational energy of the turbine is converted into electricity by a generator. The paper presents the design details and performance analysis of a self designed simple and compact demonstration model solar updraft tower made with locally available materials. The model is constructed with the prime aim of understanding chimney concept in experimental studies. Tests were conducted to evaluate the performance of the device by measuring the test parameters updraft velocity, temperature profiles of various junctions and power output. The results obtained indicate that the updraft velocity and power output depend on solar insolation and the height of the chimney stack with a constant collector area.

Key words: Solar updraft tower, updraft velocity, convective acceleration, power output, chimney concept.


Emulsion Systems with Citrus hystrix Oil Stabilised by Mixed Nonionic Surfactants
S.H. Doreen Ng, C. R. Laili, S. Hamdan and M. Habsah
Abstract : The phase behaviors of pseudo ternary mixtures of water/Tween 80/Span 80/Hexane were studied by constructing a series of phase equilibriums at 30°C. After the phases underwent separation by centrifugation, birefringence was observed under crossed polarized light. The results showed that the mixtures of Tween 80 and Span 80 were able to solubilise in water and hexane by forming association structures like micro-emulsion and liquid crystalline phases. In the attempt to formulate stable O/W emulsions; several compositions were selected from the phase equilibriums to compare their stability. The extracted essential oil of citrus hystrix was then incorporated into the emulsions as additive and fragrance. From the stability test, the results showed that the emulsions, in which the percentage of Tween 80 that was much higher than the Span 80, were more stable.

Key words: Emulsion, Phase Equilibrium, Liquid Crystalline.


Assessment of growth and nutritional status of School going children (6-12 Years) in Urban slums of Guntur City (India)
Jalaja Kumari, D.1, Sri Hari Krishna, B.2
Abstract : To assess the growth and nutritional status of girl and boy school going children aged 6-12 years from urban slums in Guntur City. The data were collected from girl and boy school children. A total of 490 (280 girls and 210 boys) were studied for being underweight and for grades of malnutrition on the basis of Gomez classification. Out of 490 children who participated in the study 107 (22%) had grade I malnutrition and around 287 (58.5%) of children fell within moderate to severe degree of malnutrition while only 96 (19.5%) of children could be labeled as normal. The diet of boys and girls was deficient in most of the nutrients such as energy, protein, fat, calcium, iron, vitamin A, thiamin, riboflavin, nicotinic acid, pyridoxine, except ascorbic acid and folic acid which were more than RDA. The present study reported a high incidence of malnutrition as revealed by their anthropometry. However increment in height and weight were more in girls than boys although intake of foods and nutrients did not show large variation among boys and girls. Study reveals gross deficiency in dietary intake of school going children of urban slums. Malnutrition seemed universal in the study subjects.

Key words: School going children, urban slums, Guntur, Recommended dietary allowance, malnutrition, Nutritional status.


Energy Efficient Portable Electronic Devices using Reversible Logic Gates
R.K. Tiwari* and H.P. Shukla**
Abstract : The new generations of Portable Electronic devices are intended to provide a wide range of information, services and receiving a large volume of information, data, image and video so on. Further, portable electronic devices have integrated and advanced function like multimedia portable communication, monitoring and control facilities including high resolution video transmission, selection of services and application by customer i.e. monitoring and control of industrial applications, weather forecasting, location services and connection with other transmission media as well as achieving higher level of security and authentication. Wide coverage of future Portable electronic device services being provided through portable devices are on the rise and new technologies put more computing power in these small devices. However, the slow up gradation of battery technology forms an ultimate constraint on running heavier application on these devices. To prolong battery life, many power saving techniques are being used at all levels of system design. In this paper, we have described the concept of the reversible logic gates which may be used for replacement of conventional logic gate in the design of digital integrated circuit for portable devices to reduce power dissipation resulting prolonged battery life.

Key words : Portable Electronics Devices, Power Management, Reversible Logic Technique, Inverse, Dual.


Ground water quality assessment in colachel, Kanyakumari District, Tamilnadu
Satheesh Herbert Singh D.* and S. Manolin Mini**
Abstract : Water is essential for life. The demand for potable water is so high that a major share of it has to be obtained as groundwater. The requirement of groundwater is constantly increasing. Extraction of water is abysmally high due to population explosion and there are reports of seawater intrusion into land along the coastal belt. Colachel is one such coastal region, where present day need is partly met by subsurface water. Quality of water is important as its quantity. In this study the quality assessment of available shallow groundwater have been carried out by examining various chemical parameters. The results have been brought in digital format with the help of Geographical Information System (GIS).

Key words: Groundwater, and GIS


SHORT COMMUNICATIONS
Assessment of media characteristics in upflow aerated submerged fixed-bed reactors for the treatment of dairy wastewater

K. Madan Mohan Reddy1+, M. Srimurali2 and D. Neeraja
1
Abstract : Two different medias of Broken Granite Stones and Corrugated Pall Rings was installed in two reactors. Approximately 1250 mg/L of COD is applied at 24, 18 and 12 hours of HRT in progression continuously. The results imply that media porosity play a more significant than specific surface area.


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