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Moses T. Bility,Banchob Sripa 대한기생충학열대의학회 2014 The Korean Journal of Parasitology Vol.52 No.6
Chronic Opisthorchis viverrini-induced hepatobiliary disease is associated with significant leukocyte infiltration, including activated macrophages; however, the polarization of infiltrating macrophages remains to be fully characterized. In this study, we characterized macrophage polarization and phenotype in chronic O. viverrini-induced hepatobiliary disease in humans and hamsters using gene expression and histochemical analysis. Chronic O. viverrini infection and associated hepatobiliary diseases were associated with iron loaded M2-like macrophages in both humans and hamsters. This study provides suggestive evidence that iron loaded M2-like macrophages promote hepatobiliary disease in chronic O. viverrini infection.
Comparative Study of E-Learning Experiences: A Case Study of Nigeria, South Africa and United States
Moses Timothy,Oladunjoye John A,Agu Edward O 보안공학연구지원센터 2016 International Journal of Grid and Distributed Comp Vol.9 No.10
We are in a society where availability of open courseware and countless internet-based online programmes are run by universities across the globe. The world is moving from the traditional face-to-face classroom teaching to a virtual classroom. There are concerns however; that this paradigm shift is limited by the understanding on what quality/standard is needed for a good e-learning resource. This concern has prompted the need to compare e-learning experiences in United States, South Africa and Nigeria so as to encourage developing countries to improve on this innovative approach to learning.
Investigations on aerosols transport over micro- and macro-scale settings of West Africa
Moses Eterigho Emetere 대한환경공학회 2017 Environmental Engineering Research Vol.22 No.1
The aerosol content dynamics in a virtual system were investigated. The outcome was extended to monitor the mean concentration diffusion of aerosols in a predefined macro and micro scale. The data set used were wind data set from the automatic weather station; satellite data set from Total Ozone Mapping Spectrometer aerosol index and multi-angle imaging spectroradiometer; ground data set from Aerosol robotic network. The maximum speed of the macro scale (West Africa) was less than 4.4 m/s. This low speed enables the pollutants to acquire maximum range of about 15 km. The heterogeneous nature of aerosols layer in the West African atmosphere creates strange transport pattern caused by multiple refractivity. It is believed that the multiple refractive concepts inhibit aerosol optical depth data retrieval. It was also discovered that the build-up of the purported strange transport pattern with time has enormous potential to influence higher degrees of climatic change in the long term. Even when the African Easterly Jet drives the aerosols layer at about 10 m/s, the interacting layers of aerosols are compelled to mitigate its speed to about 4.2 m/s (macro scale level) and boost its speed to 30 m/s on the micro scale level. Mean concentration diffusion of aerosols was higher in the micro scale than the macro scale level. The minimum aerosol content dynamics for non-decaying, logarithmic decay and exponential decay particulates dispersion is given as 4, 1.4 and 0 respectively.
Moses Sitio,Sangho Kim,Jaewoo Lee 한국항공우주학회 2013 International Journal of Aeronautical and Space Sc Vol.14 No.2
In this research the development of unstructured grid discretization solution techniques is presented. The purpose is to describe such a conservative discretization scheme applied for experimental validation work. The objective of this paper is to better establish the effects of mesh generation techniques on velocity fields and particle deposition patterns to determine the optimal aerodynamic characteristics. In order to achieve the objective, the mesh surface discretization approaches used the VLA prototype manufacturing tolerance zone of the outer surface. There were 3 schemes for this discretization study implementation. They are solver validation, grid convergence study and surface tolerance study. A solver validation work was implemented for the simple 2D and 3D model to get the optimum solver for the VLA model. A grid convergence study was also conducted with a different growth factor and cell spacing, the amount of mesh can be controlled. With several amount of mesh we can get the converged amount of mesh compared to experimental data. The density around surface model can be calculated by controlling the number of element in every important and sensitive surface area of the model. The solver validation work result provided the optimum solver to employ in the VLA model analysis calculation. The convergence study approach result indicated that the aerodynamic trend characteristic was captured smooth enough compared with the experimental data. During the surface tolerance scheme, it could catch the aerodynamics data of the experiment data. The discretization studies made the validation work more efficient way to achieve the purpose of this paper.
Moses Ayodele Ojo 한국식품영양과학회 2018 Preventive Nutrition and Food Science Vol.23 No.2
The seed of Cassia hirsutta was subjected to aqueous soaking and four hydrothermal processing techniques (atmospheric boiling, atmospheric steaming, pressure boiling, and pressure steaming). Soaking of the seed to varying hydration levels before hydrothermal treatments induced the reduction in the concentration of the antinutritional components. The lowest concentration of each of the antinutritional components was observed at 100% hydration level. The effects of hydrothermal techniques on the antinutritional components and protein digestibility were investigated. All the hydrothermal techniques caused significant reduction (P<0.05) in the antinutritional components. Boiling at elevated pressure resulted in greater reduction of antinutrients. The hydrothermal techniques caused total elimination of trypsin inhibitor activity. Reduction in the concentration of the antinutritional components after hydrothermal processing led to the increase in in vitro protein digestibility. The highest in vitro protein digestibility of 86.82% was observed after the legume seed was boiled at elevated pressure. Adoption of this underutilised legume will strengthen dietary diversity, improve feeding patterns, and prevent protein energy malnutrition especially in developing countries since the seed is a good source of nutritionally important nutrients.