One of the most effective parameters in economics of open-pit mines is the pit slope angle, so that the slope angle more than the optimum value increases the probability of a large failure in the pit wall and the slope angle less than the optimum value leads to increasing stripping ratio and reducing net present value of mine. Therefore, in this paper, considering the limit equilibrium methods ...

.......Competition between platforms generates vendor behavior that sometimes aligns with the interests of users and application developers, and sometimes does not. For example, competition gives platform leaders incentives to improve the functionality of their code and improve the experiences of their users. It also leads them to make it difficult for users and programmers to switch between pl...

One of the main concerns of the mining industry is to determine ultimate pit limits. Final pit is a collection of blocks, which can be removed with maximum profit while following restrictions on the slope of the mine’s walls. The size, location and final shape of an open-pit are very important in designing the location of waste dumps, stockpiles, processing plants, access roads and other surfac...

This experimental research was aimed at determining whether or not immersive virtual reality (IVR) technology gives a user a measurable advantage over more conventional display methods when visualizing complex 3D geometry. Subjects were shown an abstract rod sculpture in a variety of display and display-control modes, and were tasked with assembling a physical replica of the sculpture they were...

recently, self-etching fissure sealants have been introduced to reduce technical sensitivity; however, their efficacy should be assessed. the aim of this study was to assess of the microshear bond strength of self-etching and conventional fissure sealants.thirty non-carious third molars were randomly divided into three groups (n=10). microcylinders of concise fissure sealant were bonded to prep...

In this paper we present HIVE (2016), a parametrically designed interactive sound sculpture with embedded multichannel digital audio which explores the intersection of sculptural form and musical instrument design. We examine sculpture as an integral part of music composition and performance, expanding the definition of musical instrument to include the gestalt of loudspeakers, architectural sp...

Quantitative and qualitative data are presented for 44 collections representing 42 species in 27 genera. Lamiaceae basically have: vessels with simple perforation plates; vessel-to-vessel pitting alternate; imperforate tracheary elements alllibriform fibers, fibers commonly septate; axial parenchyma scanty vasicentric; rays Heterogeneous Type liB. These features ally Lamiaceae closely with Verb...

Background: Sacral pit is a shallow or deep dimple in the lower sacral region, with a reported prevalence of 3-5% among newborns. The aim of the present study was to investigate spinal cord abnormalities in newborns with sacral pit via ultrasound examinations. Methods: In this descriptive study, 3071 infants born at 34-42 weeks of gestation were studied in hospitals affiliated to Islamic Azad U...

Trans<–>Former #13 is a dynamic sculpture with a set of equal sub-structures with a behaviour sought that continuously redraws its own positions in space. To achieve the artistic vision the sculpture is considered as a non-uniform 2D cellular automata. By including the adaptive and explorative properties of a Cellular Genetic Algorithm in the expression of the moving sculpture Trans<–>Former #1...

High precision 3D sculpture model can take the accurate records of the shape, material and color on the surface of the sculpture. It is an important foundation work of digital documentation, preservation, archaeological research and analysis for the sculpture types of cultural heritage. Constructing high precision 3D sculpture model includes two aspects: geometry modeling and texture reconstruc...