Heritage Institute of Technology

About: Heritage Institute of Technology is a based out in . It is known for research contribution in the topics: Support vector machine & Transconductance. The organization has 581 authors who have published 1045 publications receiving 8345 citations.

Evolution and characterizations of aurivillius bismuth titanate by modified solid state processing

Abstract: Mild agate mortar activation followed by sintering of precursors, in resemblance to modified solid state process, was studied for synthesis of the aurivillius bismuth titanate. Hand on mill activation was carried out for eight hours followed by annealing treatment at 1000°C for 12 hours in presence of air atmosphere to obtain the proper phase. Scherrer’s formula was utilized to estimate crystallite size along with planes of orientation. Crystallite size was about 65nm while prominent peaks of orientations were (-117), (006), (111), (200) and others. FESEM and TEM studies were carried to obtain the morphology and estimated grain size of the synthesized aurivillius compound. Morphological features execute the material system to be nanocrystalline in nature as estimated from grain size measurement in correspondence with XRD crystallite size estimation. FTIR analysis confirms M-O coordinations of synthesized modified perovskite (aurivillius) sample. Optical property was evaluated from UV-VIS analysis with prominent absorption spectra in the visible region. Tauc plot was used to estimate the band gap to be about 2.86eV & 2eV for both direct and indirect transitions.

Arsenic Removal Through Combined Method Using Synthetic Versus Natural Coagulant

Abstract: As Arsenic contamination in drinking water has become a matter of severe concern, researchers across the globe have been trying to develop an efficient yet economic method for removal of arsenic from water. Authors of this paper investigated combined treatment methodology namely, coagulation followed by microfiltration (MF) to remove arsenic below permissible level of 10 ppb. Simulated solutions of arsenate and arsenite salts (100 ppb) were prepared. A 95.83 % reduction of arsenic for arsenate solution and 91.99 % reduction of arsenic in case of arsenite solution were achieved in suitable pH range (8−10) when the solution was subjected to coagulation using ferric chloride coagulant, followed by MF using 0.45 µm polyethersulphone membrane. In search of more cost effective and ecofriendly yet viable route, authors explored the effectiveness of crushed Shelled Moringa oleifera Seed (SMOS) as a natural coagulant. A 91.01 % decontamination of arsenic for arsenate solution and 70.61 % for arenite solution were achieved in suitable pH range 7−9. This alternative method of coagulation, bio-adsorption (amino acid-arsenic interaction) followed by MF achieved in appreciable arsenic removal efficiency compared to inorganic Ferric Chloride, a synthetic coagulant. The sludge generated in case of ferric chloride was found to be toxic and highly corrosive compared to that obtained with Moringa oleifera seeds.

Understanding Partial P T $\mathcal {P}\mathcal {T}$ Symmetry as Weighted Composition Conjugation in Reproducing Kernel Hilbert Space: An application to Non-hermitian Bose-Hubbard Type Hamiltonian in Fock space

Abstract: A new kind of symmetry behaviour introduced as partial $\mathcal {P}\mathcal {T}$ -symmetry(henceforth $\partial _{\mathcal {P}\mathcal {T}}$ ) is investigated in a typical Fock space setting. The said Fock space is understood as a Reproducing Kernel Hilbert Space (RKHS). The same kind of symmetry is analysed for a non-hermitian Bose-Hubbard type Hamiltonian (involving two boson operators) along with its eigenstates. The phenomenon of symmetry breaking has also been considered.

Development of a Prototype Skin Color Monitor for Noninvasive Estimation of Blood Bilirubin

Abstract: The conventional blood bilirubin measurements for the assessment of life-threatening jaundice disease are offline, invasive, and time consuming. To address such problems, the present paper proposes an optical sensing based simple, user-friendly, noninvasive, fast responding in situ technique to measure blood bilirubin concentration. The proposed method assesses the jaundice-caused site-based skin discoloration. Optical sensing system consists of a tricolor light emitting diode (TCLED) and a photosensor to provide the electrical information about the depth of discoloration, which is acquiesced, processed by the Arduino controller to display the level of blood bilirubin using simple programs. The proposed device was used to assess the color discoloration at the time of serum bilirubin measurements of both the healthy and jaundice abused subjects. The data pairs were statistically analyzed and found good correlation. The device seems to be clinically fit for noninvasive assessment of blood bilirubin level. However, a larger study is required before recommending the use of this instrument in this population.

Hierarchical Data Structures for Accessing Spatial Data

Abstract: Spatial data is data related to space .In various application fields like GIS, multimedia information systems, etc., there is a need to store and manage these data. Some data structures used for the spatial access methods are R tree and its extensions where objects could be approximated by their minimum bounding rectangles and Quad tree based structures where space is subdivided according to certain rules. Also another structure KD Tree is used for organizing points in a k dimensional space. In this paper we have described an algorithm for insertion of points in a Quad tree based structure, known as PR Quad Tree. Another data structure called K-D Tree is also described and the insertion procedure is defined. Then the comparison between the two structures is drawn.