exergy analysis of a system is a method for recognizing the value and type of system availability against surrounding environment. it also helps to find how macroscopic properties of the system change during a process. this analysis is based on first and second laws of thermodynamics. by exergy analysis proportion of each process in the internal availability transmission and the places of usefu...

Statement of problem. Acrylic resin is most commonly used for denture bases. However, acrylic resin has week points of volumetric shrinkage during polymerization that reduces denture fit. The expandability of POSS (Polyhedral Oligomeric Silsesquioxane) containing polymer could be expected to reduce the polymerization shrinkage of denture bases and would increase the adaptability of the denture ...

flood flow importance enforces we to simulate its components exactly. in this study, saint-venant equations in conservative form are usedto simulate one-dimensional rapidly varied flow in the river. upstream methods of godunov family in finite volume frame work are used to numerical solution. according to flow conditions in the river, the equations used are included in the source term of the be...

Target detection in visual singleton feature search is slowed when consecutive targets are defined in different visual dimensions. Behavioral data provide evidence that attentional weight needs to be shifted between dimension-specific processing modules. We found similar dimension-specific change effects in a conjunction search task, in which observers searched for an odd-one-out target defined...

Concepts of directional remote sensing are put forward based on two-dimensional compressive sensing. Very little measured data are required to acquire and reconstruct change areas in directional remote sensing. The measured data in one-dimensional compressive sensing not only keep the energy of a sparse signal, but also inherit the sparse signal’s direction information. However, direction infor...

We present a compactified version of the 3-dimensional black hole recently found by considering extra identifications and determine the analytical continuation of the solution beyond its coordinate singularity by extending the identifications to the extended region of the spacetime. In the extended region of the spacetime, we find a topology change and non-trivial closed timelike curves both in...

This report describes a method to track moving non-rigid objects. The method is based on a comparison between a model and an image, the comparison function employed is the partial Hausdorr distance. The model and the image are binary elements extracted from a sequence of gray levels images. The target's motion in a two-dimensional representation (image) is decomposed into two parts: a two-dimen...

objective: in vitro ovarian follicle culture provides a tool to investigate folliculogenesis and may be used as an assisted reproductive technology )art(. this study aims to compare survival and development rates in mouse ovarian follicles after two and three dimensional in vitro cultures. methods: preantral follicles were isolated from the ovaries of 14-day old female mice and cultured in α-m...

changes are inevitable in construction projects. they could lead to disruptive impacts on the quality, schedule and budget of projects. identifying changes and anticipating their consequences can help project teams mitigate these negative impacts. as a result, a change process model has been defined to improve this procedure. at first the present paper the defines some of the key terms in this ...