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Sungyoung Han,Haengbok Cheon,Hangmyo Cho,Juhyung Kim,Ji-Houn Kang,Mhan-Pyo Yang,Youngwon Lee,이희천,Dongwoo Chang 대한수의학회 2008 Journal of Veterinary Science Vol.9 No.4
Computed tomographic arthrography (CTA) of four cadaveric canine stifles was performed before and after partial cranial cruciate ligament rupture in order to verify the usefulness of CTA examination for the diagnosis of partial cranial cruciate ligament rupture. To obtain the sequential true transverse image of a cranial cruciate ligament, the computed tomography gantry was angled such that the scanning plane was parallel to the fibula. True transverse images of cranial cruciate ligaments were identified on every sequential image, beginning just proximal to the origin of the cranial cruciate ligament distal to the tibial attachment, after the administration of iodinated contrast medium. A significant decrease in the area of the cranial cruciate ligament was identified on CTA imaging after partial surgical rupture of the cranial cruciate ligament. This finding implies that CTA can be used for assessing partial cranial cruciate ligament ruptures in dogs.
Gamification on Phrase Building Training Application
Sungyoung Lee,Sora Lim 보안공학연구지원센터 2015 International Journal of Software Engineering and Vol.9 No.3
Computer Aided Instruction (CAI) has been considered as a powerful device for teaching and learning second languages. However, contrary to expectations, many have assessed CAI to be less than satisfactory in terms of their efficacy and effectiveness. It is because of boring and monotonous characters of educational applications. To complete all tasks in educational applications requires great efforts and patience due to lacking fun and amusement. Therefore, how to add amusement elements on applications is a big deal for the developers of e-learning applications for language learning. In this paper, in order to seek a solution for this, we will show a way to add these elements by gamification of an application for practicing building phrase which is mostly difficult to attract learners’ interests in spite of its importance in language learning.
Continuous blood cell separation by hydrophoretic filtration
Choi, Sungyoung,Song, Seungjeong,Choi, Chulhee,Park, Je-Kyun Royal Society of Chemistry 2007 Lab on a chip Vol.7 No.11
<P>We propose a new hydrophoretic method for continuous blood cell separation using a microfluidic device composed of slanted obstacles and filtration obstacles. The slanted obstacles have a larger height and gap than the particles in order to focus them to a sidewall by hydrophoresis. In the successive structure, the height and gap of the filtration obstacles with a filtration pore are set between the diameters of small and large particles, which defines the critical separation diameter. Accordingly, the particles smaller than the criterion freely pass through the gap and keep their focused position. In contrast, the particles larger than the criterion collide against the filtration obstacle and move into the filtration pore. The microfluidic device was characterized with polystyrene beads with a minimum diameter difference of 7.3%. We completely separated polystyrene microbeads of 9 and 12 µm diameter with a separation resolution of ∼6.2. This resolution is increased by 6.4-fold compared with our previous separation method based on hydrophoresis (S. Choi and J.-K. Park, <I>Lab Chip</I>, 2007, 7, 890, ref. 1). In the isolation of white blood cells (WBCs) from red blood cells (RBCs), the microfluidic device isolated WBCs with 210-fold enrichment within a short filtration time of ∼0.3 s. These results show that the device can be useful for the binary separation of a wide range of biological particles by size. The hydrophoretic filtration as a sample preparation unit offers potential for a power-free cell sorter to be integrated into disposable lab-on-a-chip devices.</P> <P>Graphic Abstract</P><P>This paper describes a novel hydrophoretic method for continuous blood cell separation using filtration obstacles, which play not only the role of filtering large particles blocked by the obstacles but also the role of focusing small particles able to pass through the gap between the obstacle and the top or bottom of the channel. <IMG SRC='http://pubs.rsc.org/services/images/RSCpubs.ePlatform.Service.FreeContent.ImageService.svc/ImageService/image/GA?id=b705203k'> </P>