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SYNTHESIS AND CHARACTERISATION OF ZINC OXIDE NANOPARTICLES USINGPHENOLIC RESINS
Get PDFPhenolic gum or phenol formaldehyde (PF) tar containing distinctive level of zinc oxide (ZnO) nanoparticles was arranged and used to treat rubberwood. Three sorts of treatment arrangements were readied, in particular (1) low atomic weight phenol formaldehyde gum (LMwPF), (2) 1,5 wt % nano ZnO broke up in water (ZnO/H2O), and (3) blend of both LMwPF and 1,5 wt % nano ZnO (LMwPF/ZnO). The rubberwood tests were lowered into the treatment answers for 60, 90, and 120 min, before vacuum impregnation. The untreated rubberwood tests filled in as the controlled examples. The warm solidness conduct and opposition against white-decay parasites (Pycnoporus sanguineus) of the treated rubberwood tests were assessed. The outcomes uncover that the treated rubberwood had somewhat better warm steadiness contrasted with the untreated examples. As far as rot opposition, the rubberwood treated with LMwPF and LMwPF/ZnO have high obstruction against white-decay growths. Then again, the rubberwood treated with ZnO/H2O didn\u27t accomplish comparable viability as the other two medicines, aside from the examples that were lowered in ZnO/H2O for 120 min. The outcomes demonstrate that 1,5 wt % nano ZnO could be adequate in giving better solidness than rubberwood given that more drawn out submersion time is embraced. 
DOMINATION AND DOMATIC NUMBER OF A GRAPH
Get PDFA dominating set of a graph G = (V, E) may be a subset D of V. such every vertex not in D is adjacent to some vertex in D. The domatic number d(G) of G is that the maximum positive integer K. such V are often partitioned into K pairwise disjoint dominating sets. the aim of this paper is to review the domatic numbers and domination numbers of a graphs that are obtained from small graphs by performing graph operations
A STUDY ON ECONOMIC STATUS BASED ONDATA COLLECTION AT ARIYALUR DISTRICT
Get PDFThe present study is conducted to find the Economic Status Based on Data collection at Ariyalur District. Survey Method was used to collect data from 200 workers of Ariyalur District. The tools used were Economic Status by Investigator and Teacher made test. Product moment Co – efficient of Correlation ( r ) and t – test were used for data analysis. The results reveal that, there is a significant positive correlation of economic status based on data collection
REVIEW OF SPECTROSCOPIC INVESTIGATION ON FUNDAMENTAL MODES OF PICOLINIC ACID HYDRAZIDE
Get PDFDuring this paper synthesis of (E)-3,4-dichlorobenzylidene picolino hydrazide using 3,4 - trimethoxybenzaldehyde and thio semicarbazide and This work is very effective medicinal hydrazide derivatives are synthesized from Schiff base route. Fourier transform infrared (FT-IR) spectra shows the chemical bonding and various functional groups, the carbonyl peak appeared at 1658, 1649 and 1656 cm−1 in pure pyrazineamide compounds, respectively. 1H and 13C nuclear resonance analysis examines the location of aromatic protons and carbons are identified to the synthesized materials. The spectrophotometric data just like the transmittance was cogitated within the 350-2500 nm regions and were found. 
A STUDY ON COHOMOLOGY RINGS
Get PDFCohomology is a general term for a sequence of abelian groups defined from a cochain complex. That is, cohomology is defined as the abstract study of cochains, cocycles and coboundaries. Cohomology can be viewed as a method of assigning algebraic invariants to a topological space that has a more refined algebraic structure than the homolog
DUAL – HESITANT FUZZY TRANSPORTATION PROBLEM
Get PDFSo on handle inexact, tentative or partial information and knowledge circumstances in factual-life operational investigate predicaments dual-hesitant fuzzy set is applied. during this work a totally unique method called Allocation Table Method (ATM) for solving dual-hesitant fuzzy transportation problem is introduced. This method is explained with a numerical example and thus the result obtained through this method is compared with the prevailing method (VAM). This proposed method gives an optimum solution as compared with other metho
FOURIER ANALYSIS ON FINITE ABELIAN GROUPS
Get PDFThis article reveals the basic techniques of fourier analysis on a finite abelian group .It may be used as to derive theorems in graph theory.The definition of fourier transform depend on the choice of Isomorphism but it is independent of this choice upto automorphism of R. Fourier transformation has been a rich source for applications in combinatories
MATRIX POLYNOMIAL AND LAMBDA MATRIX
Get PDFA matrix x is a solvent of the matrix polynomials. f(x)=A o xm +…..+Am if f(x) = 0.Where A o, x, f are square matrices. In this paper we develop the linear algebra of matrix polynomials and solvents. we define division and interpolation the properties of matrices and define and study the existence of a complete set of solvents. we study the relation between the matrix polynomial problems and Theorems and lambda matrix problem, Which is to find scalar λ such that
A o λm+A1 λm-1+ ……. +Am is singular.
In a future paper we extend Cayley Hamilton Theorem for calculating of scalar polynomials to matrix polynomials. And lambda matrix for column and row Hermite calculating of lambda matrix
CLUSTER POINT OF NET AND ISOLATED MAPPING
Get PDFIn mathematics, more specifically generally topology and related branches, a net or Moore-Smith sequence may be a generalization of the notion of sequence. In essence, a sequence may be a function with domain the natural numbers and within the context of topology, the co domain of this function is typically any mathematical space . However, within the context of topology, sequences don\u27t fully encode all information a few function between topological spaces