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The three-dimensional reconstruction of porous media is of great significance to the research of mechanisms of fluid flow in porous media. However, it is quite difficult to reconstruct the unknown information only by some sparse known data in the process of reconstruction. Therefore, some interpolation or extrapolation methods are used to reconstruct the unknown region for better results. Sequential...
Because porosity is an important parameter for the evaluation of transport properties in many scientific and engineering fields, some interpolation or extrapolation methods are used to estimate or predict the unknown porosity for better simulated results. However, it is quite difficult to predict the unknown porosity values only by some sparse conditional data in the process of simulation based on...
Direct sequential simulation being an interpolation method has been used widely for information reconstruction of certain variables, which does not use any transformation of the original variable. Unfortunately, it does not reproduce the histogram of the original variable, but histogram reproduction is one of the basic requirements of any reconstruction method. This has been the most serious limitation...
Cokriging is an unbiased prediction method with minimum prediction variance. The main advantage of cokriging is that it takes into account the correlation and cross-correlation of information at the same time, which provides a way to consider different kinds of information simultaneously. Original cokriging cannot solve the problem of instability in matrix. However, according to the hypothesis of...
The accuracy of space interpolation can be improved by using the multiple data with different dimensions, resolutions or types. Cokriging can estimate unknown states by multiple known data, with an unbiased prediction value and minimum prediction variance. However, because of the large smoothing effect of itself, cokriging can only reflect the extensive tendency of interpolation, not capable of showing...
Many interpolation methods were proposed to predict or reconstruct unknown information. However, when the conditional data are quite few or even there are no conditional data, predicted results are often poor. Originally, a method called multiple-point geostatistics (MPS) originated from geostatistical fields and it allows extracting multiple-point structures from training images, after that MPS can...
The statistical information reconstruction of images will be difficult and inaccurate when no conditional data or only hard data are available. Accuracy of reconstructed images can be improved, using soft data during the process of reconstruction. Integrating soft data with hard data, a method based on multiple-point geostatistics is proposed to reconstruct statistical information of images. During...
The two widely used standards for validating the conventional cuff-based BP devices are those set up by the American Association for the Advancement of Medical Instrumentation (AAMI) and the British Hypertension Society (BHS) respectively. It was reported that although both standards work well for most BP devices, they do not agree with each other in all circumstances. Previous attempts to model the...
With the evolution of m-Health, an increasing number of biomedical sensors will be worn on or implanted in an individual in the future for the monitoring, diagnosis, and treatment of diseases. For the optimization of resources, it is therefore necessary to investigate how to interconnect these sensors in a wireless body area network, wherein security of private data transmission is always a major...
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