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Evaluation of Thermo-acoustic parameters of potassium ferro
- and ferricyanides in water + alcohol mixtures
U. N. DASHa, G. S. ROYb and S.
MOHANTYc
Abstract: The acoustic behavior of the solutions of potassium ferro and ferricyanides in water + alcohol mixtures have been studied at 303.15, 308.15 and 313.15K. Basing on the values of thermo acoustic parameters, ion-solvent interactions and different structural effects have been studied and correlated.
Yadav Treatment To the effect of Variable Magnetic field on weak cylindrical shock in a rotating Gas
R. P. Yadav* and S. Rathore**
Abstract:Method proposed by first author14 has been used to
study the effect of arbitrary density distribution on the propagation of weak
diverging cylindrical shock in a rotating gas in presence of variable azimuthal
magnetic field. The method so used modifies the accuracy of CCW1,2,11
method. Assuming an initial density distribution r0=r'rw,
where
r' is the density at the axis of symmetry and w is a
constant. The magnetic field is assuming to have variable azimuthal component only, viz.
Hq0=H0r1/2, where, H0 is the constant and r is the propagation distance. The relations have also been analysed for freely propagation (FP) of the shock.
Study of sediment characteristics and beach profile at hatchery complex, Tanjung Demong and
Bukit Keluang coast
Rosnan Yaacob, Noor Azhar mohd Shazili and Hazamri Harith
Abstract: A study of sediment characteristic and beach profiles were carried out at Tanjung Demong and Bukit Keluang. The site were divided into three substations and sampling were carried out in August 2001, October 2001 and January 2002. Statistical analysis for sediment using the T-test shows that there were significant changes in the sediment characteristics. The type of sediment ranged from coarse to fine sand where their mean size are in the range of 0.1 phi to 2.3 phi. The sorting and skewness indicated most the sediment are well sorted and mostly are negatively skewed. Beach profiles on October 2001 at Tanjung Demong showed that there was some erosion processes due to human activities especially at the hatchery. The hatchery complex at Tanjung Demong also influenced the beach profiles. The built of drain for out going water and pipe line for the intake of sea water to hatchery site, caused the damage to the 'beam' nearby and at the same time affected the movement of the particles sediment along the shoreline.
A different scenario were found at Bukit Keluang, where aceretion process occurred. Sampling on January 2002 showed that there was aceretion process at Tanjung Demong and erosion at Bukit Keluang due to North east monsoon.
Key word: Beach Profile, Sediment Characteristic, Erosion, Monsoon.
Measurement of K x-ray energy shifts and fluorescence yields in multiply ionized atoms due to C and N ion bombardment
K. Ramachandra Rao, Y. Ramakrishna*, K. Bhaskara Rao, V. Seshagiri Rao,
P. Venkateswarlu, G. J. Naga Raju and S. Bhuloka Reddy
Abstract: The K x-ray energy shifts due to 10 MeV Carbon ion bombardment in elements Ca,Ti,V,Cr,Mn,Fe,Co,Ni and Cu and due to 12 MeV Nitrogen ion bombardment in elements Ca,Ti,V,Cr and Mn are measured. Basing on these energy shifts, the K-fluorescence yields due to multiply ionized atoms are estimated. The present results indicate that the K-fluorescence yield values due to multiply ionized atoms are quite different from the single hole values due to Krause. These fluorescence yield values are fitted to a polynomial. The regression coefficients thus obtained in the present work are useful to evaluate the fluorescence yields due to multiply ionized atoms in the neighboring elements.
Key words: K x-ray energy shifts and fluorescence yields of multiply ionized atoms-C and N ion bombardment.
PACS: 32.80 Hd 32.30.Rj 41.75.-i 41.75.Ak
Elemental analysis in Spices by PIXE technique
Ch. Anjaneyulu1, G. J. Naga Raju1., M. Ravi
Kumar1, M. John Charles1,
B. Seetharami Reddy1, K. Prema Chand1, A. Durga Prasad
Rao1,
S. Bhuloka Reddy1 and V. Vijayan2
Abstract: The trace element analysis was carried out in the spices Clove, Cinnamon, Pepper, Anise, Dill, Cummin and Coriander using particle induced x-ray emission technique (PIXE). A 2 MeV proton beam was employed to excite the samples. The experiments were carried out using 3 MV pelletron accelerator facility at IOP, Bhubaneswar. The elements Cl, K, Ca, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Br, Rb and Sr are identified to be prominently present in all the above spices. The elements As and Pb are present in very small quantities. The relative concentrations of different elements in different spices are represented as bar diagrams.
Key Words: Elemental analysis - Spices - PIXE technique.
Radial diffusion of HPT particles and FAC density in the Magnetosphere
C. S. JAYASREE, G. RENUKA* and CHANDU VENUGOPAL**
Abstract: In this paper, the radial diffusion of hot plasma torus (HPT) particles by electric field fluctuations in the equatorial auroral region is studied. The approximate values of diffusion induced field aligned current (FAC) densities at different L- values during magnetically quiet times (Kp~1) and disturbed times (Kp~6) are computed. The results show that FAC density increases as L increases during these periods. Furthermore, the FAC density is more intense during active times than quiet times.
Key words : Radial diffusion, FAC density, HPT particles.
Dissipative Nano-Microscale Hardware for Cognitive
Self-Organizing Biomimetic Automata
Salvatore Santoli
Abstract: On the basis of previous papers concerning the formulation of a novel concept of information for a physical description of biosystems and for designing and implementing biomimetic evolutionary automata, both the scientific and the technological aspects of biomimicry for realization of nanostructured smart autonomous automata are deepened, and some basic elementary nano-to-micro components and devices implementing such automata are outlined. The ever expanding knowledge and industrial production of nanostructures are making the realization of at least the simplest biomimetic automata increasingly close.
Mechanical analysis of aquifer material in Kasganj
sub-divisional area, District Etah, Uttar Pradesh, India
SYED ZAHEER HASAN
Abstract:100 grams of representative samples of aquifer material from varying
depths were taken after coning and quartering. Electrically operated sieve shaker was used for the purpose of determining the effective grain size
(d10); uniformity coefficient (UC) and finally the hydraulic conductivity (K), an important hydrogeological parameter. The d10 varies from 0.043 to 0.138mm whereas,
d10 has the variation in values from 0.120 to 0.252mm. The uniformity coefficient ranges between 1.328 to 3.442 and the hydraulic conductivity varies from 9.57 to 99.13m/day. The analytical results show that the hydraulic conductivity is directly related with the effective grain size.
Key words: Mechanical analysis, aquifer material, effective grain size, uniformity coefficient, hydraulic conductivity.
A Kinetic study of oxidation of 2-Naphthol by quinolinium Dichromate
P. MANIKYAMBA and K. ARUNA
Abstract:The oxidation of 2-naphthol by quinolinium dichromate in aqueous acetic acid medium in the presence of
H2SO4 is observed to follow second order kinetics being first order with respect to both [Oxidant] and [Substrate]. The reaction rate is nearly independent of
[H2SO4] and dielectric constant of the medium. The product of oxidation is 1,2-naphthoquinone and the oxidant is reduced to Cr (III). A possible mechanism consistent with these observations is proposed.
Key Words: Quinolinium Dichromate, Oxidation, Kinetic Study, 2-naphthol.
Chelation Ion-Exchange Properties of 2-Hydroxyacetophenone-Oxamide-Formaldehyde Terpolymer Resin
W. B. GURNULEa, P. K. RAHANGADALEb, L. J.
PALIWALc and R. B. KHARATb
Abstract: A terpolymer resin (2-HAOF) synthesized by the condensation of
2-hydroxyacetophenone and oxamide with formaldehyde in the presence of an acid catalyst proved to be a selective chelating ion-exchange polymer for certain metals. Chelating ion-exchange properties of this polymer were studied for
Fe3+, Cu2+, Ni2+, Co2+, Zn2+,
Cd2+, Pb2+ and Hg2+ ions. A batch equilibrium method was employed in the study of the selectivity of metal ion uptake involving the
measurements of the distribution of a given metal ion between the polymer sample and a solution containing the metal ion. The study was carried
out over a wide pH range and in media of various ionic strengths. The polymer showed a higher selectivity for
Fe3+, Cu2+ and
Ni2+ ions than for Ca2+, Zn2+, Cd2+,
Pb2+ and Hg2+ ions.
Determination of the stability constants of Mixed
Complexes of Hg(II), Cd(II) and Mn(II) with serine by paper electrophoresis
Satyendra Singh* and Kanchan Gaur+
Abstract:Binary equilibria of M(II)- Serine and also mixed complexes formation have been studied using paper electrophoresis. The log K values for mixed complexes have been found to be 5.02, 3.81 and 3.02 for Hg(II), Cd(II) and Mn(II) complexes respectively at u = 0.1 and 35°C.
Synthesis and antifungal activity of some
1, 2, 4 Triazolo- 1, 3, 4 Thiadiazoles
R. K. ASTHANA S. SINGH*, MAZHAR MEHANDI* and Priyanka
Ojha***
Abstract: Addition of carbon disulphide to l-aroyl/Aroyloxi methyl hydrazide in aqueous KOH solution gives Potassium salt of 2 Aroyl / Aroyl oximethyl 1- Hydrazine Carbodithioic acid on cyclo dehydration with conc
H2SO4 furnished corresponding 5-aryl/aryl oxymethyl 1,3,4 thiadiazole 2 thioles which upon treatment with suitable thiosemi carbazide give 2-aryl / aryl oxi methyl 5 amino / aryl amino -1,2,4 Triazolo, 1,3,4
Thiadiazoles.
Characterisation of some indoles in aqueous &
micellar media
C.P. Singh, Anil Kumar, Kumar Gaurav and Hamid Hasan
Abstract: Linear sweep voltammentry has been used for determination of hydroxy indoles in aqueous & micellar media at Phrolytic graphite electrode. It was found that these compounds can be determined in the concentration range 0 to 1mm. in aqueous medium. At higher concentration, the adsorption of these compounds caused diminished peak current values.
In the presence of ionic and non ionic surfactants particularly Sodium dodecyl sulfate (SDS), cetyl tri methyl ammonium bromide (CTAB) and Tween - 40, the peak current values decreased and hence determination becomes
difficult.
Along track interferometry model for shoreline change
Maged Marghany
Abstract:This study is introducing a new approach for modeling shoreline change. AIRSAR data with L and C bands utilized to model shoreline change. Based on the phase information in along track interferometry, the quantitative information such as current velocity and swell wave height have been modeled. The phase information in ATI SAR images can be transferred to interferometric velocities, which are the sums of the orbital velocity of current, the phase velocity of Bragg wave and the orbital velocity of swell. These information have been used to model the volume change of longeshore transport.
The result shows that wave spectra swell are less than 100m of wavelength. The shoreline change rate obtained from phase information is ranged from -0.0125 m/day to 0.5 m/day. In conclusion, along track interferometry method cold be used to detect small change of shoreline change over short period which may be less than one day. This method could be used as an automatic tool for quick detection of shoreline change and modeled the factors could be induced this change.
Ultrasonic Studies and Thermodynamic Parameters of
Pyridine-3-Carboxylic Acid in Mixed Solvent at 299.15K, 303.15K and 308.15
RaVI JUMLE* MS. USHA WASNIKa and M. L.
NARWADEb
Abstract: Limiting apparent molar volume and Limiting apparent molar compressibility, solute- solute interaction parameters (Sv and Sk). Apparent molar
volume(fn) Apparent Adiabatic Compressibility (fk) in 20% dioxane - Water at 299.13k, 303.15k and 308.15k have been evaluated from measurement of ultrasonic velocity and density. The results have been interpreted in the light of solute-solvent and solute-solute interactions.
Hopfield neural network for coastal current detection
from tiung-sat data
Maged Marghany and Mohd. Lokman Hussien
Abstract: This study proposed a method to operational TIUNG-SAT data for coastal current studies. The Hopfield neural network has been utilized to model surface current movements. The study shows that the surface current movements modelled from Hopfield neural network are increased with area of high intensity variation. The surface currents vectors are ranged from 0.7 m/s to 1.4 m/s. It can be concluded that TIUNG-SAT data could be used for detection of surface currents based on the intensity gradient variations that can detect from the energy equation motion of neuron.
Study of toxic constituents of some conventional
and non-conventional legumes
Prajeeta Chansoriya, Manjul Shrivastava and S. K. Shrivastava
Abstract:Some conventional legume seeds (Dolichos lablab-JDL-53 and Dolichos lablab-JDL-85) and non-conventional legume seeds (Albizia amara, Acacia catechu, Cassia siamea) were studied for their toxic constituents, like, cyanogenetic glycosides, tannins, oxalates, trypsin inhibitor activity and haemagglutinating activity.
Key words : Anti-nutritive factors, conventional and non-conventional leguminous seeds, Dolichos lablab-JDL-53 and Dolichos lablab-JDL-85, Albizia amara, Acacia catechu, Cassia
siamea.
Synthesis and Characterization of Terpolymer Resins
Derive from p-Hydroxybenzoic Acid, Melamine and Formaldehyde
W. B. Gurnulea, h. d. junujab and l. J.
Paliwalc
Abstract:Some new terpolymers have been synthesized by the condensation of
p-hydroxybenzzoic acid (PHB) with melamine (M) and formaldehyde (F) in the presence of 2M HCl as a catalyst and using varied molar ratios of reacting monomers. The terpolymers were purified by suitable method. The terpolymers were characterized by elemental analysis, electronic, infrared (IR) and nuclear magnetic reasonance (NMR) spectral studies. The average molecular weights of terpolymers have been determined by conductometric titrations in non aqueous medium. Viscometric measurements in dimethylformamide (DMF) have been carried out in order to ascertain the chracteristics functions and constants of terpolymers. The structure of the terpolymers has been eastablished by analytical and spectral data.
Spectral Characterisation of the Complex of
S4N3Cl with Zn (II)
Surendra Singh Yadav and S.P.S. Jadon
Abstract:The complex of S4N3Cl with ZnO, Synthesized by refluxing
S4N3Cl and ZnO in DMF is formulated as (S4N3Cl.ZnO) on the basis of its elemental and mass spectral analysis. I.R, U.V, and H1NMR studies explained that
S4N3Cl ring has bidentatedly coordinated to Zn2+ ion of ZnO through its S atoms after breakingup and forming a diamagnetic complex.
Key Words : Thiotrithiazylmonochloride (TTTMC), Bidentated, Breaking up, Asymmetry.
Effect of Montmorillonite addition of the Structure
and Impact Behaviour of isotactic Polypropylene
Navin Chand and J. P. Purohit
Abstract: Montmorillonite MMT filled polypropylene nanocomposites having different weight fractions of MMT are developed by using a melt mixing ethod. Polymer composites have been developed by using an extruder for achieving the quick production of products. Structural changes occurred on addition of different amount of MMT's in the polypropylene have been determined by using tensile, impact and X-ray techniques. Tensile strength of PP reduced to 20.6 MPa as compared to 33 MPa of PP. Impact strength improved to 0.41
KJ/m2 on adding 7.5 wt% MMT from 0.288 of pure pp, this is due to fine size of particles. Addition of 7.5 wt% MMT increased the crystal size of PP to 10.04
A° from 6.96 A° of pure PP.