3,516 research outputs found
On The Properties Of -Bernstein-Type Polynomials
The aim of this paper is to give a new approach to modified -Bernstein
polynomials for functions of several variables. By using these polynomials, the
recurrence formulas and some new interesting identities related to the second
Stirling numbers and generalized Bernoulli polynomials are derived. Moreover,
the generating function, interpolation function of these polynomials of several
variables and also the derivatives of these polynomials and their generating
function are given. Finally, we get new interesting identities of modified
-Bernoulli numbers and -Euler numbers applying -adic -integral
representation on and -adic fermionic -invariant integral
on , respectively, to the inverse of -Bernstein polynomials.Comment: 17 pages, some theorems added to new versio
Some new identities on the Apostol-Bernoulli polynomials of higher order derived from Bernoulli basis
In the present paper, we obtain new interesting relations and identities of
the Apostol-Bernoulli polynomials of higher order, which are derived using a
Bernoulli polynomial basis. Finally, by utilizing our method, we also derive
formulas for the convolutions of Bernoulli and Euler polynomials, expressed via
Apostol-Bernoulli polynomials of higher order.Comment: 8 pages, submitte
Some New Identities of Genocchi Numbers and Polynomials involving Bernoulli and Euler polynomials
In this paper, we will deal with some new formulae for two product Genocchi
polynomials together with both Euler polynomials and Bernoulli polynomials. We
get some applications for Genocchi polynomials. Our applications possess a
number of interesting properties to study in Theory of Analytic numbers which
we express in the present paper.Comment: 10 pages, submitte
A Comprehensive X-ray Absorption Model for Atomic Oxygen
An analytical formula is developed to represent accurately the
photoabsorption cross section of O I for all energies of interest in X-ray
spectral modeling. In the vicinity of the Kedge, a Rydberg series expression is
used to fit R-matrix results, including important orbital relaxation effects,
that accurately predict the absorption oscillator strengths below threshold and
merge consistently and continuously to the above-threshold cross section.
Further minor adjustments are made to the threshold energies in order to
reliably align the atomic Rydberg resonances after consideration of both
experimental and observed line positions. At energies far below or above the
K-edge region, the formulation is based on both outer- and inner-shell direct
photoionization, including significant shake-up and shake-off processes that
result in photoionization-excitation and double photoionization contributions
to the total cross section. The ultimate purpose for developing a definitive
model for oxygen absorption is to resolve standing discrepancies between the
astronomically observed and laboratory measured line positions, and between the
inferred atomic and molecular oxygen abundances in the interstellar medium from
XSTAR and SPEX spectral models
Radiation Damping in the Photoionization of Fe^{14+}
A theoretical investigation of photoabsorption and photoionization of
Fe^{14+} extending beyond an earlier frame transformation R-matrix
implementation is performed using a fully-correlated, Breit-Pauli R-matrix
formulation including both fine-structure splitting of strongly-bound
resonances and radiation damping. The radiation damping of
resonances gives rise to a resonant photoionization cross section that is
significantly lower than the total photoabsorption cross section. Furthermore,
the radiation-damped photoionization cross section is found to be in good
agreement with recent experimental results once a global shift in energy of
eV is applied. These findings have important implications.
Firstly, the presently available synchrotron experimental data are applicable
only to photoionization processes and not to photoabsorption; the latter is
required in opacity calculations. Secondly, our computed cross section, for
which the L-shell ionization threshold is aligned with the NIST value, shows a
series of Rydberg resonances that are uniformly 3-4 eV
higher in energy than the corresponding experimental profiles, indicating that
the L-shell threshold energy values currently recommended by NIST are likely in
error.Comment: 4 pages, 1 figures, and 2 table
Some New Symmetric Identities for the q-Zeta Type Functions
The main object of this paper is to obtain several symmetric properties of
the q-Zeta type functions. As applications of these properties, we give some
new interesting identities for the modified q-Genocchi polynomials. Finally,
our applications are shown to lead to a number of interesting results which we
state in the present paper.Comment: 8 pages; submitte
A note on the values of the weighted q-Bernstein polynomials and modified q-Genocchi numbers with weight alpha and beta via the p-adic q-integral on Zp
The rapid development of q-calculus has led to the discovery of new
generalizations of Bernstein polynomials and Genocchi polynomials involving
q-integers. The present paper deals with weighted q-Bernstein polynomials and
q-Genocchi numbers with weight alpha and beta. We apply the method of
generating function and p-adic q-integral representation on Zp, which are
exploited to derive further classes of Bernstein polynomials and q-Genocchi
numbers and polynomials. To be more precise we summarize our results as
follows, we obtain some combinatorial relations between q-Genocchi numbers and
polynomials with weight alpha and beta. Furthermore, we derive an integral
representation of weighted q-Bernstein polynomials of degree n on Zp. Also we
deduce a fermionic p-adic q-integral representation of product weighted
q-Bernstein polynomials of different degrees n1,n2,...on Zp and show that it
can be written with q-Genocchi numbers with weight alpha and beta which yields
a deeper insight into the effectiveness of this type of generalizations. Our
new generating function possess a number of interesting properties which we
state in this paper.Comment: 10 page
CENGO: a web-based serious game to increase the programming knowledge levels of computer engineering students
In recent years, games are used to increase the level of knowledge and experience of individuals working in different domains. Especially in the education field, there are several different serious games
to teach the subjects of the lectures or other educational materials to
students in an enjoyable way. Hence, this study proposes a quantitative
research approach to increase the programming knowledge levels of the
first-year undergraduate students at computer engineering departments.
For this aim, a responsive web platform was developed to teach the syntax and logic of C programming language by using some game elements.
Therefore, the students have a chance to repeat the topics related to C
programming language continuously since the platform is always accessible. To figure out the efficiency of the designed environment, 10 first-year
computer engineering students were selected. According to the results obtained from the user tests, this game can be used as an educational tool,
which supports the traditional training methods, to increase the knowledge levels of students about the syntax and logic of C programming
language
Interoperability specification development for integrated BIM use in performance based design
Interoperability in BIM is low and the focus is on 3D coordination. Despite the available standards including IFC and IDM, there is still no clear guidance how such standards can be effectively used for performance based design. Thus, early collaboration is discouraged and performance analysis is conducted as late as possible to minimize the number of information exchanges, leading to difficulties and costly changes in design that is almost completed.
The aim is to propose an interoperability specification development approach for performance based design through the Design4Energy case study project. Findings show that the design process had increased flexibility, shared understanding between stakeholders about what information nuggets should be provided from whom to whom, at what stage, using which tool and data model.
It can guide for the integrated BIM practice and help developing BIM execution plans for Level 2 BIM while paving the way for Level 3 BIM
The changing role of the software engineer
In this paper we will discuss the changing role of a software engineer.
We will examine this from four major standpoints, the software development
life cycle, the influence of open source software, testing and deployment and the
emergence of new technologies. We will first analyze what the role of a software
engineer was in the past. We will examine limitations associated with software
development life cycle models, and software failures that catalyzed increased importance for quality assurance. We then outline the current role of a software
engineer. We discuss the impact of agile software development and automation
on the software development cycle, the influence of open source software and
how new technologies such as Function-as-a-Service and machine learning may
impacted the role. Based on our research, we analyze why the software engineer
role has changed and postulate prospective changes to the role of software engineer, and in particular how new responsibilities may affect the day to day work
of future software engineers. We ultimately find that the role of a “software engineer” is nowadays widely varied and very broad, and it only generally indicates
the type of work that the software engineer may undertake
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