Results 81 to 90 of about 5,293,142 (204)

A Study on the Effect of Dynamic Photovoltaic Shading Devices on Energy Consumption and Daylighting of an Office Building

Buildings
Photovoltaic shading devices (PVSDs) have the dual function of providing shade and generating electricity, which can reduce building energy consumption and improve indoor daylighting levels.
Yan Jiang, Zongxin Qi, Shenglin Ran, Qingsong Ma   +3 more
doaj   +1 more source

Nonlinear boundary value problems for p-Laplacian fractional differential systems

, 2015
In this paper, we study the existence results of positive solutions for p-Laplacian fractional differential systems by means of fixed point theorems on cones. As an application, an example is given to demonstrate our main results.
Deren F.Y., Hamal N.A., Cerdik T.S.
core  

Dynamic networks

, 2001
Complex, dynamic organizational processes, especially problem-solving processes, require that the design and control of the cooperative work process is left to the cooperating persons.
Fuchs-Kittowski, F.
core   +1 more source

Positive solutions for nonlocal semipositone first order boundary value problems

, 2016
We establish the existence of positive solutions for a nonlinear nonlocal first order boundary value problem by applying a variety of fixed point theorems. Emphasis is put on the fact that the nonlinear terms fi may take negative values.
Çetin E., Topal F.S.
core  

The Analysis of the Financial Indicators at the Level of an Entity in the Automotive Products Sector

CECCAR Business Review
Financial indicators are tools that provide concrete clues regarding the health of a business. They involve two dimensions: a quantitative one, determined by the calculation of the indicators, and a qualitative one, which relates to their interpretation.
Bogdan Cosmin GOMOI
doaj   +1 more source

On positive solutions for fourth-order four-point boundary value problems with alternating coefficient on time scales

, 2015
In this paper, by using four functionals fixed point theorem and five functionals fixed point theorem, we study the existence of at least one positive solution and three positive solutions respectively of a fourth-order four-point boundary value problem ...
Karaca I.Y.
core  

Energy Benefits of PV-Integrated Dynamic Overhangs for Residential Buildings in Qatar

Energies
This paper summarizes the potential energy efficiency benefits of PV-integrated dynamic overhangs for housing units in Qatar. Specifically, the technology combines two energy benefits of shading effects of reducing air conditioning loads and generating ...
Moncef Krarti, Mohamed A. Ayari, Farid Touati, Mohammad R. Paurobally   +3 more
doaj   +1 more source

DYNAMIC STABILITY OF AN ANNULAR SECTOR PLATE SUBJECTED TO IN-PLANE DYNAMIC MOMENTS [PDF]

, 1989
"Dynamic stability problem of an annular sector plate subjected to in-plane dynamic moments at the radial edges is examined. The basic equation is reduced to a set of ordinary differential equations by applying a Galerkin method，and transformed into an ...
Konishi, Yasunori, Natsuaki, Yoshihiro, Hirakawa, Michiaki, Takahashi, Kazuo   +3 more
core  

Monotone iterative technique and existence results for fractional functional differential equations

, 2015
This paper is concerned with the existence of positive solutions for boundary value problems of fractional functional differential equations involving the Caputo fractional derivative. The proof is based on the monotone iterative technique.
Deren F.Y., Hamal N.A., Cerdik T.S.
core  

Existence and monotone iteration of concave positive symmetric solutions for a three-point second-order boundary value problems with integral boundary conditions

, 2015
In this article, we make use of the monotone iterative technique to verify the existence of concave symmetric positive solutions of a second-order three-point boundary value problem with integral boundary conditions.
Akcan U., Hamal N.A.
core