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OALib Journal期刊

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Intelligent approach of modeling self similar plants and trees using parallel string rewriting techniques
Bana Bihari Mohanty,Saroja Nanda Mishra,Srikanta Pattanayak
International Journal of Machine Intelligence , 2009,
Abstract: Plants and Trees are such natural objects which exhibit the property of self similarity. There aremany methods developed in computer graphics to generate these self similar objects. Efforts are still goingon to formulate new techniques to generate such objects with minimal efforts and time. Parallel stringrewriting method has been used to develop fractal formalism in computer graphics. This string rewritingtechnique can be represented in graphical form through turtle graphics. In this paper it has been investigatedand experimented to generate objects like plants and trees using parallel string rewriting formalism.
Effect of Strontium Substitution on Impedance Properties of Ba5GdTi3V7O30 Ceramics  [PDF]
Bana Bihari Mohanty, Priyadarshini Sanghamitra Sahoo, Bala Krushna Giri, Jagata Nanda Panda, Ram Naresh Prasad Choudhary
Journal of Modern Physics (JMP) , 2018, DOI: 10.4236/jmp.2018.94043
Abstract: A series of compounds Ba5-xSrxGdTi3V7O30 (x = 0 - 5), belonging to tungsten bronze family were prepared by a high-temperature solid-state reaction route. Using X-Ray diffraction technique and Scanning Electron Micrograph, the formation and surface morphology of the compounds were studied. The X-Ray diffraction study informs the formation of single-phase orthorhombic structures. The substitution of Sr ion with increasing concentration in the compounds as per formula resulted in a variation of the electrical properties. Study of electrical properties using impedance analyzer exhibits: 1) the presence of negative temperature coefficients of resistance (NTCR) behavior; 2) presence of temperature dependent electrical relaxation phenomena; 3) evidences of single electrical relaxation attributed to the presence of bulk contribution to the electrical properties for pure Ba5GdTi3V7O30 compound; 4) an enhancement in the barrier to the mobility of charge carriers on Sr-substitution. The effects of Sr on changes in the electrical conductivity as a function of temperature at different frequency are described based on impedance spectrum analysis.
Preparation and Study of Dielectric and Electrical Conductivity of Ba5NdTi3V7O30 Ceramics  [PDF]
Jagatananda Panda, Bana Bihari Mohanty, Priyadarshini Sanghamitra Sahoo, Ram Naresh Prasad Choudhary
Open Access Library Journal (OALib Journal) , 2018, DOI: 10.4236/oalib.1104834
Abstract:
Ba5NdTi3V7O30 is a tungsten bronze structured ceramic sample, prepared by Solid State reaction route at high temperature (950℃). The room temperature XRD analysis confirms orthorhombic crystal structure of the compound. Dielectric peak is observed at ~460℃ showing the transition of the compound from ferroelectric to paraelectric phase. Appearance of hysteresis loop confirms the existence of ferroelectric properties in the materials. Different values of activation energy in different temperature regions of the ac conductivity versus inverse absolute temperature graph exhibit mixed type of conduction process in the compound (i.e., ionic-polaronic and space charge generated from the oxygen ion vacancies).
Impedance Spectroscopy of Ba5GdTi3V7O30  [PDF]
Bana Bihari Mohanty, Priyadarshini Sanghamitra Sahoo, Mohapatra Prakash Kumar Sahoo, Ram Naresh Prasad Choudhary, Ram Naresh Prasad Choudhary, Ram Naresh Prasad Choudhary, Ram Naresh Prasad Choudhary
Journal of Modern Physics (JMP) , 2012, DOI: 10.4236/jmp.2012.35050
Abstract: The polycrystalline sample of Ba5GdTi3V7O30 , a member of tungsten bronze structural family, was prepared by a high-temperature solid-state reaction technique. A preliminary X-ray diffraction analysis suggests the formation of single-phase compound with orthorhombic structure. The effect of temperature on impedance parameters was studied using an impedance analyzer in a wide frequency range (102- 106 Hz) at different temperatures. The real and imaginary part of complex impedance traces semicircle(s) in the complex plane. The temperature dependent plots reveal the presence of both bulk and grain boundary effects. The bulk resistance of the material decreases with rise in temperature. This exhibits a typical negative temperature coefficient of resistance (NTCR) behavior of the material. The modulus analysis suggests a possible hopping mechanism for electrical transport processes of the material. The nature of variation of dc conductivity suggests Arrhenius type of electrical conductivity.
A Clinco-Bacteriological Study of Leprosy in Paediatric Age Group  [PDF]
Leena Das, Bijay Kumar Meher, Nikunja Bihari Das, Deepti Damayanty Pradhan, S. Pradeep, Jayashree Mohanty
Advances in Infectious Diseases (AID) , 2013, DOI: 10.4236/aid.2013.34041
Abstract:

Clinico-bacteriological study was done in 51 leprosy patients below 14 years of age. Majority of the patients were males in the age group of 11-14 years. Nearly 84% had not received any prior treatment because of lack of awareness and financial constraints. Only 11.76% had a positive contact history. Skin lesions were present in all cases and 84.3% had lesions mainly on the exposed areas of the body and their number was found to increase significantly with advancing age (p < 0.005). These lesions were hypo-pigmented patches in 88% cases. 88% of cases had hypo-anesthesia and nerve thickening was observed in 24% cases. The most common type of skin lesion was borderline tuberculoid (BT) in 53% cases. Positivity of the skin smears increased significantly as the number of the skin lesions per patient increased (p < 0.001). Multibacillary cases were seen in 15.6% of cases and found only in the age group of 10-14 years of age. No statistically significant association between BCG vaccination and prevention of leprosy was seen.

Synthesis and Electrical Analysis of Ba5GdTi3V7O30 Ceramics  [PDF]
Bana B. Mohanty, Priyadarshini S. Sahoo, Mahapatra P. K. Sahoo, Ram N. P. Choudhary
Materials Sciences and Applications (MSA) , 2012, DOI: 10.4236/msa.2012.33027
Abstract: A polycrystalline sample of Ba5GdTi3V7O30 was prepared using a mixed oxide method at high temperature (i.e., at 950℃). The formation of single-phase compound with orthorhombic structure at room temperature was confirmed from preliminary X-ray diffraction study. Detailed studies of dielectric properties of Ba5GdTi3V7O30, investigated in a wide frequency range (102 - 106 Hz) at different temperatures (33℃ - 500℃) showed that these properties of the material are strongly dependent on frequency and temperature. The existence a dielectric anomaly suggests that the compound has a transition temperature at ~385℃. The nature of the variation of conductivity and value of activation energy in different regions, calculated from the temperature dependence of ac conductivity (dielectric data) suggest that the conduction process is of mixed type (i.e., ionic-polaronic and space charge generated from the oxygen ion vacancies). The ac conductivity spectrum obeys Jonscher’s universal power law.
Nature of First-Order Transition in Planar Rotator Model with Modified Potential  [PDF]
Smita Ota, Snehadri Bihari Ota
Journal of Modern Physics (JMP) , 2013, DOI: 10.4236/jmp.2013.41020
Abstract:

We have carried out micro-canonical Monte Carlosimulations of a planar rotator model in 30 × 30 lattice using periodic boundary conditions. The energy distribution of the rotator in the lattice shows features that can be associated with spin wave and vortex excitations. The results supplement the first-order transition observed in canonicalMonte Carlosimulation, due to vortex nucleation. We also see features that can be associated with the in-homogeneity of vortex charge in the critical region.

Frans H. van Eemeren & Rob Grootendorst: A Systematic Theory of Argumentation. The pragma-dialectical approach
Bihari, Judit
Argumentum , 2011,
Abstract:
Frans H. van Eemeren, Bart Garssen & Bert Meuffels: Fallacies and Judgments of Reasonableness. Empirical Research Concerning the Pragma-Dialectical Discussion Rules
Bihari, Judit
Argumentum , 2011,
Abstract:
Morphology of peatland lakes
Krzysztof Bana
Limnological Review , 2010, DOI: 10.2478/v10194-011-0001-9
Abstract: The morphometric features of 10 small (0.1-2.9 ha) and shallow (4-16 m) peatland lakes, located in basins filled with peat, were examined. The elongation of such lakes and the development coefficient of their shorelines are very low. The mean depth is close to the maximum value (7.0±4.8 and 7.8±3.9 m, respectively), as the lake bottom is normally flat and the basin walls are often vertical. In terms of morphometric features, the peatland lakes were divided into large (1.92±1.12 ha) and small (0.33±0.33 ha). The former are surrounded by a relatively narrow belt of peatlands and characterized by low values of Ohle coefficient and Schindler factor (1.81±2.04 and 0.32±0.13), which makes them very susceptible to the effect of peatlands. The smallest lakes are located in the central part of big peatlands. Their values of Ohle coefficient and Schindler factor are five times higher, whereas their volume is ten times less (13 750 m3 as compared to 125 000 m3; p<0.001). The bottom slope angle is considerable. In peatland lakes, there is little space that could be occupied by vegetation. In deep moraine-dammed lakes plants occur only on vertical walls, whereas in shallow water bodies, plants also thrive on the bottom.
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