The present study was
carried out to develop an efficient plant regeneration protocol for Sesamum
indicum (L.) from cotyledon explants prepared from 10-day-old in vitro grown
plantlets. Cotyledon explants inoculated on MS medium containing 2 mg l−1
N6 –Benzyladenine (BA) and 30 mg l−1 spermidine induced
the higher number of shoots (23.43 shoots/explant) and the induced shoots were
elongated (5.63 cm/shoots) in the same medium. The maximum frequency (92.33%)
of root induction was recorded in MS medium fortified with 10 mg l−1
putrescine. Up to 95% of the regenerated plantlets acclimatized and developed
further under the greenhouse conditions. Antibacterial activity of the
regenerated plant extracts exhibited resistance against various pathogens such
as, Escherichia coli, Vibrio cholerae, Bacillus subtilis and Micrococcus
luteus. Highest zone of inhibition (13 mm) was recorded for B. subtilis and M.
luteus at 50 μg ml−1 extract.
Saturday, September 28, 2019
FRUIT AND NUT CHARACTERISTICS OF PROMISING PERSIAN WALNUT TREES IN VIETNAM
Persian walnut
(Juglans regia L.) is the most economically important cultivated species for
timber and nutritious nuts among 21 walnuts worldwide. Walnut has been planted
in Vietnam personally in a small number of areas in Northern provinces sharing
borderlines with China. The objective of this study was to survey
characteristics of fruits and nuts of 15 J. regia promising trees and discuss
their suitability as plus trees serving for intensive plantation. The results
indicated that fruit diameter ranges 40.41-49.7 mm, fruit weight ranges
38.12-70.81 g, nut diameter ranges 24.19-34.96 mm, and nut weight ranges
9.07-25.26 g. The nut to fruit ratio for diameter ranges 57.8-70.4% and for
weight ranges 20.4-35.7%. There existed positive linear relationships between
fruit weight and nut weight for 10 of 15 promising trees with regression/R2
>0.5. While relationships between fruit diameter and nut diameter generally
did not exist or existed with low regression (R2 <0.3). It is
concluded that six of 15 promising trees could be selected as plus trees for
intensive plantations through grafting technique. Those plus trees have a nut
to fruit ratio for weight >30% and high regressions between fruit weight and
nut weight.
Friday, September 27, 2019
PROPERTIES OF THE SPECTRUM FOR THE SINGULAR DIFFUSION OPERATOR
In this study,
singular diffusion operator is considered, we have derived integral equations
for the solutions under certain initial conditions. We have also derived integral
representations that satisfy initial conditions. Some features of the zeros of
the characteristic functions have been obtained and with the help of these, we
have investigated spectral properties of singular diffusion operator.
Furthermore, we have obtained the asymptotic formulas for eigenvalues,
eigenfunctions and normalizing numbers.
ON A CERTAIN TWO-SMALL-PARAMETER CUBIC-QUINTIC NON-LINEAR DIFFERENTIAL EQUATION HAVING SLOWLY-VARYING COEFFICIENTS WITH APPLICATION TO DYNAMIC BUCKLING
The present research
uses multi-timing regular perturbations in asymptotic expansions to analyze a
certain differential equation having a cubic-quintic nonlinearity. The
differential equation contains slowly-varying explicitly time-dependent
coefficients as well as some small parameters upon which asymptotic expansions
are initiated. The formulation is seen to be typical of a certain mass-spring
arrangement (with geometric imperfection), trapped by a loading history that is
explicitly time-dependent and slowly varying, but continuously decreasing in
magnitude, while the restoring force on the spring has a cubic-quintic
nonlinearity. The dynamic buckling load
of the elastic model structure is determined analytically and is related to the
corresponding static buckling load. To the level of the accuracy retained, it
is observed that the dynamic buckling load depends, among others, on the value
of the first derivative of the loading function evaluated at the initial time.
All results are asymptotic and implicit in the load amplitude.
Wednesday, September 25, 2019
DENUMERABLE PRODUCT SPACES OF PSEUDOQUOTIENTS I
A space of
pseudoquotients ß(X,G) is defined as the set of equivalence classes of pairs
(x, g), where x ∈ X, an arbitrary
non-empty set, and g ∈ G, a commutative
semigroup acting on X such that (x, g)~(y, h) if hx = gy. In this paper, we
shall construct the pseudoquotient space ß(ΠXi,ΠGi) where X is replaced
by a cartesian product of countably infinite non-empty sets Xi and G
by a direct product denumerable commutative semigroups Gi, i ∈ I an indexing set, such that ΠGi acts
injectively on ΠXi.
THE SEMI-TOTAL MONOPHONIC DOMINATION NUMBER OF A GRAPH
In this paper the
concept of semi-total monophonic domination number of a graph is introduced. A
set of vertices of a graph is called a total monophonic set if is a monophonic set and its induced subgraph
has no isolated vertices. The minimum cardinality of all total monophonic sets
of is called the total monophonic number
and is denoted by. A set of
vertices in is called a monophonic dominating set if is both a monophonic set and a dominating
set. The minimum cardinality of a monophonic dominating set of is its monophonic domination number and is
denoted by . A monophonic dominating set of size is said to be a set. A set
of vertices in a graph with no
isolated vertices is said to be a semi-total monophonic set of if it is a monophonic set of and every vertex in is within distance 2 of another vertex of .
The semi-total monophonic AMS Subject classification: 05C12 number, denoted by , is the minimum
cardinality of a semitotal monophonic dominating set of .
Monday, September 23, 2019
RECENT ADVANCES ON RELIABLE METHODS FOR SOLVING TRANSPORTATION PROBLEM AND FUZZY TRANSPORTATION PROBLEM
The transportation
problem is the most important and successful application of linear programming
studied in the area of operations research. In the past few decades, new
approaches have been developed to improve the components of the existing
platform. This paper presents recent advances on reliable methods for solving
transportation problem and fuzzy transportation problem through a survey table
in which our comments as a remark has been included. An attempt has been made
to provide a variety of methods to solve the transportation problem within a
limited structure; through which ideas could be developed for designing new
algorithms. It provides a better platform for further research work in the area
of transportation problem.
GAS TYPE DETECTION AND CONCENTRATION ESTIMATION USING THERMAL MODULATED RESISTIVE SENSOR AND NEURAL NETWORKS
In this paper, a new
processing sensor data method base on neural networks and principal component
analysis block is presented in order to identify the gas type and to estimate
the gas concentration. Three gases in thirteen different concentrations have
been examined including methanol, ethanol, and 2-propanol. For temperature
modulation, the stair-case voltage was applied to the sensor heater at spans of
40s in 200s. In each of the obtained curves, at any span, transient and steady
state responses were recorded. These recorded properties are analyzed using the
usual methods of pattern recognition. Principal component analysis was used to
increase the selectivity of the sensor and the neural network was used to
recognize the type and estimate the gas concentration. In this study, we have
achieved the separation of gases successfully as well as average estimation
error concentration was calculated to be 0.00358%.
Saturday, September 21, 2019
ULTRASOUND IMAGE ENHANCEMENT BASED ON FUZZY MEMBERSHIP FUNCTION AND RADON TRANSFORM
The main focus of
medical image enhancement is to create an image which is more appropriate and
efficient than the original image for the particular application. Several
conventional and fuzzy based enhancement techniques have been proposed already
for medical imaging. However, these methods develop various disagreeable visual
issues such as level diffusion, uplifted noise level and over and under enhancement.
To overcome these issues, this paper presents an enhancement technique based on
normalisation, S function and radon transform. Initially, the input image is
normalised so that the gray level of input image lies between [0,255] and
fuzzified the normalised image by employing ramp function. Then S function is
used to create a modification in the fuzzified image and subsequently, radon
transform is carried out to avoid unwanted signal. Finally, the defuzzification
process is done to show the effectiveness of the enhanced image. A simulation
result demonstrates the effectiveness of the proposed technique.
CHEMICAL REACTION EFFECTS ON A CASSON FLUID FLOW OVER A VERTICAL POROUS SURFACE BY KELLERBOX METHOD
In the present study,
the Casson fluid flow over a vertical porous surface with chemical reaction is
investigated. The governing partial differential equations are converted into
ordinary differential equations by using similarity transformations. The
reduced system of equations is then solved using an implicit FDM known as the
Keller Box method. The velocity and concentration profiles are examined for
various changes in the different governing parameters like the Casson
parameter, suction parameter, Grash of number, and the Schmidt number.
Thursday, September 19, 2019
ON A CLASS OF DIRAC OPERATORS WITH EIGENVALUE NONLINEARLY DEPENDENT TO BOUNDARY CONDITION
Aims: In this study, a
class of Dirac operators with boundary conditions depend on the m−th degree
polynomial of spectral parameter have been considered.
Results: Properties of
spectral characteristic are investigated and uniqueness theorems for the
inverse problem are proved for this operator.
A NOTE ON GEOMETRIC SURFACES
The concept of
fundamental group of a topological space is explored with Seifert van-Kampen
theorem and how they contribute to differentiating between some geometric
surfaces. Some useful results and concepts
of group theory together with classification of surfaces will serve as a
prerequisite to enhance the study of the concept and some of its applications
will be introduced, studied and proved.
Tuesday, September 17, 2019
THE DIFFERENTIAL AND INTEGRAL CALCULUS IN BHASKARA'S FRAMEWORK: EXPLORATION OF ZERO AND INFINITY
The chief object of
this paper is to give the true foundation of the calculus, differential and
integral, in the doctrine of zero and infinity as given in the Lilavati of
Bhaskara II.
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