the combination of flexural frame and shear wall is one of the suitable systems to apply in reinforced concrete buildings. the deflections of flexural frame become limited due to the high stiffness of wall and the interaction of these systems. tall buildings even higher than fifty stories can be designed by using frame- wall systems. with respect to special behavior of flexural frame or shear w...

Abstract The standard argument for the Lorentz invariance of thermodynamic entropy in equilibrium is based on assumption that it possible to perform an adiabatic transformation whose only outcome accelerate a macroscopic body, keeping its rest mass unchanged. validity this constitutes very foundation relativistic thermodynamics and needs be tested greater detail. We show that, indeed, such alwa...

Abstract This paper addresses the noncooperative attitude tracking control problem for rigid bodies whose dynamics evolves on rotation matrix . First, based relative measurement, a saturated angular velocity input is designed by proposed nonlinear function. Thereafter, torque body's with saturation constraint and active disturbance rejection developed modified dynamic surface approach which can...

Interaction in Immersive Virtual Environments (VEs) is fundamentally driven by the physical actions of the user’s body. The location of rendered virtual objects is, in contrast, the free choice of the VE application designer. The goal of Dmitri Lemmerman’s masters degree project is to explore the effect of the position of rendered graphical “widgets” on user performance in the use of those widg...

Studies have shown that internal representations of manipulations of objects with asymmetric mass distributions that are generated within a specific orientation are not generalizable to novel orientations, i.e., subjects fail to prevent object roll on their first grasp-lift attempt of the object following 180° object rotation. This suggests that representations of these manipulations are specif...

In this paper, we define and study the notion of the real-valued functions on a frame $L$. We show that $F(L) $, consisting of all frame homomorphisms from the power set of $mathbb{R}$ to a frame $ L$, is an $f$-ring, as a generalization of all functions from a set $X$ into $mathbb R$. Also, we show that $F(L) $ is isomorphic to a sub-$f$-ring of $mathcal{R}(L)$, the ring of real-valued continu...

Frames in Hilbert bimodules are a special case of frames in Hilbert C*-modules. The paper considers A-frames and B-frames and their relationship in a Hilbert A-B-imprimitivity bimodule. Also, it is given that every frame in Hilbert spaces or Hilbert C*-modules is a semi-tight frame. A relation between A-frames and K(H_B)-frames is obtained in a Hilbert A-B-imprimitivity bimodule. Moreover, the ...

We prove that no triangular frame can hold a convex body, and a convex body can pass through a triangular hole ∆ if and only if the convex body can be congruently embedded in a right triangular prism with base ∆. Applying these result, we prove that a regular tetrahedron of unit edge can pass through an equilateral triangular hole if and only if the edge length of the hole is at least (1 + √ 2)...

With recent advances in wireless networking, Wireless Body Area Networks (WBANs) became practically feasible. Body Area Networks are defined by the IEEE 802.15.6 standard. However, IEEE 802.15.4 MAC can also be used for WBANs as it is cheap and simple. This paper presents a study about the standards IEEE 802.15.4 and IEEE 802.15.6. In this paper, both IEEE 802.15.4 and IEEE 802.15.6 are explain...

abstract to resist lateral loads in concrete buildings, usually systems such as flexural frame, shear wall or their combinations are used. using x form of cable bracing in order to strengthen concrete buildings is a new method. this system is more economical compared with the other systems due to cables low weight, high tensile resistance, easy performance and less maintenance problems. in this...