This investigation aimed to determine the effect of beeswax (BW) and palm oil concentrations on the characteristics of oleogels which were then compared with a commercial shortening to evaluate their potential to be u...
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Distance learning is intensively used since the outbreak of the Covid-19 requires the lecture to be done from home. A variety of applications to support distance learning, including e-learning Edmodo as a learning man...
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We propose a new approach to correct for non-uniform photon attenuation in SPECT imaging without transmission measurements. The new method can be considered a variant of Natterer's method based on the consistency ...
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We propose a new approach to correct for non-uniform photon attenuation in SPECT imaging without transmission measurements. The new method can be considered a variant of Natterer's method based on the consistency condition. The method is based on estimating parameters of the attenuation map model such that the consistency condition is satisfied. However, to improve the accuracy and stability of Natterer's method, we introduce two new concepts in this problem. The first new concept is a new consistency condition based on the ordered subsets EM iterative attenuation correction, which is more informative than Natterer's one. The second new concept is a topologically constrained labeling method to estimate a segmented attenuation map. This labeling method allows to deal with complicated attenuation maps consisting of more than one regions or having concave boundaries. The performance of the proposed method is tested with simulated data.
This study develops an adaptive handover strategy in 5G networks to tackle high mobility challenges and improve service continuity and quality. The research method uses a 5G network emulator with a topology of four ba...
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Accurate reconstruction of attenuation maps from incomplete sinograms are required in some cases of SPECT and PET imaging. This paper proposes a new method to directly reconstruct segmented attenuation maps from the i...
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Accurate reconstruction of attenuation maps from incomplete sinograms are required in some cases of SPECT and PET imaging. This paper proposes a new method to directly reconstruct segmented attenuation maps from the incomplete sinograms. The proposed method is based on an image labeling technique where an optimum label configuration minimizing some energy function is found by using a stochastic sampling with simulated annealing Unlike ordinary image labeling techniques, however, we introduce a powerful constraint called the topology-preserving constraint. This constraint reduces the search space to a set of label configurations having the same topology as the known topology of the attenuation map in question. The experimental results demonstrate that the topology-preserving constraint is powerful enough to reconstruct accurate segmented attenuation aiaps from the incomplete sinograms. The proposed method is tested with simulated data and PET transmission data.
Mathematical skills that are of major concern at this time are extrapolation abilities which require students to be able to solve mathematical problems with abstract and hierarchical concepts. To improve this capabili...
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The study examines the effects of planar anode surface roughness on heaterless hollow cathode discharge characteristics. Three distinct roughness levels, Ra 1.6, Ra 3.2, and Ra 6.4, were achieved using a specialized m...
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A humanoid control method based on human knack for human care service was discussed. It was found that the humanoid model 'HRP1S' and the human model which possessed human parameters and was not able to rise b...
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A humanoid control method based on human knack for human care service was discussed. It was found that the humanoid model 'HRP1S' and the human model which possessed human parameters and was not able to rise by itself were used in simulation. The analysis showed that the human care by humanoid was realized and the effectiveness of the humanoid control method was verified.
Ontology is an organization of knowledge that can represent knowledge in a structured manner. An ontology-based Knowledge Management System is a system that combines elements of knowledge management with the applicati...
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Household wastewater contains contaminants that harm the environment. One of the pollutants found COD. If being discharged into the environment directly, COD concentrations exceeding the existing quality standard will...
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