This paper introduces a new idea in the unital involutive Banach algebras and its closed subset. aims to study cohomology theory of operator algebra. We will algebra as an applied example algebra, be denoted by . The definitions cyclic, simplicial, dihedral group src=image/13426521_01.gif> introduced. presented definition src=image/13426521_14.gif>-relative that i...

There are many different derivatives of the variable and fixed frequency switching control techniques used in load resonant converters. In this study; among these modulation (FM), phase shift (PSM) pulse density (PDM) applied separately to series converter (SRC). The examined compared respects. An experimental setup was built, which consists a 400W (with input voltage 200 V output 36V), circuit...

Background: Peripheral nerve injury (PNI) is a common condition that compromises motor and sensory functions. Peripheral nerves are known to have regenerative capability and the pineal hormone, melatonin, is known to aid nerve regeneration. However, the role of Schwann cells and the pathways involved remain unclear. Thus, the aim of this study is to identify the effects of melatonin on Schwann ...

A non-isolated DC/DC converter with high transfer gain is proposed in this paper. The presented converter consists of the switched inductor and three-level converters. The DC/DC power converter is three-level boost converter to convert the output voltage of the DC source into two voltage sources. The main advantages of DC/DC converter are using low voltage semiconductors and high gain voltage. ...

Let denote the functions' class that is normalized, analytic, as well univalent in unit disc given by src=image/13426735_01.gif>. Convex, starlike, close-to-convex functions resemble main subclasses of src=image/13426735_02.gif>, expressed src=image/13426735_03.gif>, src=image/13426735_04.gif>, accordingly. Many mathematicians have recently studied radius problem...

In this article, given a number that ends in one and assuming there are integer solutions src=image/13427314_02.gif> for the equations src=image/13427314_03.gif> or src=image/13427314_04.gif> src=image/13427314_05.gif>, straight line was used passing through center of gravity triangle bounded by vertices src=image/13427314_06.gif>. Considering A ≥ 25, we manage t...

for beneficiation of converter slag, the role of surface phenomena on slag composition was studied. this work includes some experimental data, which were measured for basic oxygen steel (bos) slag in isfahan steel plant. all data were collected on site in the plant. the results support the idea that surface activity plays a major role in converter slag formation. it was also a new finding that ...

In this work, we obtain bounds for the sum of integer solutions quadratic polynomials two variables form where src=image/13423078_02.gif> is a given natural number that ends in one. This allows us to decide primality Also get some results on twin prime numbers. addition, use special linear functionals defined real Hilbert space dimension src=image/13423078_03.gif...