Fair allocation of goods or resources among various agents is a central task in multiagent systems and other fields. The specific setting where just one divisible resource is to be divided fairly is commonly referred to as cake cutting, and agents are called players in this setting. Cake-cutting protocols aim at dividing a cake and assigning the resulting portions to several players in a way th...

introduction: the purpose of this study was to evaluate the morphologic surface of gutta­percha cones after cutting with different methods. materials and methods: the apical 3 millimeters of forty standardized, gutta-percha cones size 40 were cut off using scissors or a scalpel against a glass slab. the samples were then examined under scanning electron microscopy (sem) for topographic deformit...

Cutting forces are strongly associated with the mechanics of cutting process. Hence, machining measurements very important to investigate process, and numerous methods have been applied. Nowadays, a dynamometer is most popular tool for measurements. However, natural frequency has direct impact on accuracy measured in Therefore, few dynamometers appropriate reliable measure at high frequencies. ...

Shear-based material removal processes significantly influence the quality of workpiece surface and implicitly component functional performance. An in-situ SEM nano-cutting enabled study crystal flow lattice rotation occurring below cutting edge in a polycrystalline Nickel superalloy. When within single grains deformed nanolayer appears that consists rotated exclusively plane which is delimited...

the new non-conventional cutting process by the use of thermal shock is a convenient procedure for cutting the brittle materials such as glasses and ceramics. this method is based on the application of localized thermal shock to brittle materials by the use of hot air jet, which induces thermal stresses at the tip of an existed pre-crack. due to the thermo-elastic behavior of materials, the pre...

Tribological properties are determinant in the functionality of contacting surfaces machine elements. The wear resistance or load bearing capacity influence lifetime these parts. In this study tribology-related surface topography parameters (Ssk, Sbi) and hardness hard turned analyzed after measurements. Correlation coefficients were calculated for their relationships. It was found that cutting...

The conversion of coniferous tree plantations towards natural self-regenerating forests is one the targets forestry in Europe and particularly desirable national parks. aim this study was to evaluate effectiveness different approaches (conducted once) on forest development man-made spruce plantations. We studied effects three distinct management options (partial-cutting [PC], clear-cutting with...

in order to evaluate the effect of different sources and rates of nitrogen the growth and biomass production of purslane, a randomized complete block design was conducted with three replications at the agricultural research farm of shahrekord university in 2012. fertilization treatments were consisted of control (no n amendment), 30 and 90 kg n ha-1in the form of urea fertilizer, 30 and 90 kg n...

Biological-motion perception consists of a number of different phenomena. They include global mechanisms that support the retrieval of the coherent shape of a walker, but also mechanisms which derive information from the local motion of its parts about facing direction and animacy, independent of the particular shape of the display. A large body of the literature on biological-motion perception...

Image analysis technique is introduced to characterize fiber distribution in steel fiber reinforced cementitious composites. Through cutting and polishing of specimen, image acquisition of specimen surface, extraction of fiber feature, and measurement of related fiber parameters, i.e., dispersion coefficient and orientation factor, are given to quantitatively analyze fiber distribution. Effects...