soil hydraulic properties such as soil water characteristic curve are necessary prerequisite for modeling water movement and solute transport. direct methods of estimating these hydraulic properties are time consuming and costly. indirect methods, such as pedotransfer functions, estimate the hydraulic parameters using easy-to-measure soil properties like particle size distributions, bulk densit...

foodborne pathogens comprise microorganisms such as viruses, bacteria and parasites that can be transmitted by food and affect public health worldwide. the most common viruses transmitted via food are hepatitis a virus and norwalk-like caliciviruses. also, the most common bacteria involved in foodborne illnesses are campylobacter jejuni, clostridium perfringens, salmonella spp, escherichia coli...

there are two methods for identifying formation interface in oil wells: core analysis, which is a precise approach but costly and time consuming, and well logs analysis, which petrophysists perform, which is subjective and not completely reliable. in this paper, a novel coupled method was proposed to detect the formation interfaces using gr logs. second approximation level (a2) of gr log gained...

We identify the inefficiencies that arise when negotiation between two parties takes place in the presence of transaction costs. First, for some values of these costs it is efficient to reach an agreement but the unique equilibrium outcome is one in which agreement is never reached. Secondly, even when there are equilibria in which an agreement is reached, we find that the model always has an e...

Firms compete by choosing both a price and a design from a family of designs that can be represented as demand rotations. Consumers engage in costly sequential search among …rms. Each time a consumer pays a search cost he observes a new o¤ering. An o¤ering consists of a price quote and a new good, where goods might vary in the extent to which they are good matches for the consumer. In equilibri...

We propose an explanation of cooperation among unrelated members of a social group in which cooperation evolves because it constitutes an honest signal of the member's quality as a mate, coalition partner or competitor, and therefore results in advantageous alliances for those signaling in this manner. Our model is framed as a multi-player public goods game that involves no repeated or assortat...

background: wilson disease (wd) is caused by numerous pathogenic mutations of the atp7b gene. there are several mutation screening methods that can be used for the diagnosis and carrier detection of wd, however such methods are costly and time-consuming. therefore, other diagnostic methods should be used for urgent situations such as prenatal diagnosis. objective: to report common polymorphisms...

Bird strikes are an important phenomenon that must be taken into consideration when designing aircraft. A bird impact experiment provides a direct method to examine the strike resistance. However, design of aircraft structures usually involves many iterations design-manufacturing-test and conducting experiments is not only time consuming but also costly. The aim this work show application test ...

Abstract We present, analyze, and test locally stabilized space–time finite element methods on fully unstructured simplicial meshes for the numerical solution of tracking parabolic optimal control problems with standard L 2 -regularization.We derive a priori discretization error estimates in terms local mesh-sizes shape-regular meshes. The adaptive version is driven by residual indicators, or, ...

conclusions results showed that ann is a powerful tool for predicting sorption coefficients using soil organic carbon content variations. results the multilayer perceptron (mlp) artificial neural networks (ann) model with 1-6-1 layout, predicted nearly 98% of the variance of kd as well as 94% of the koc variations with soil organic carbon content. materials and methods data of this study were d...