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임창현,안형회,박인덕,김시경 공주대학교 생산기술연구소 2001 論文集 Vol.9 No.-
This paper presents a 3D last design software that provides the 3-dimensional last data to achieve from the 3-dimensional foot data. The proposed software employes a free form deformation(FFD) with Bezier patch. The deformation factor of the FFD is constructed on the FFD lattice based on the bottom view, lateral view of the measured 3D foot data. In addition, the control points of FFD lattice is decide on the anatomical view of foot. The deformed 3D last result obtained from the proposed FFD is saved as a 3D dxf foot data. The experimental results demonstrates that the proposed? system have the descent 3D last data based on the openGL window.
New reversible data hiding algorithm based on difference expansion method
Kim, Hyoung-Joong,Sachnev, Vasiliy,Kim, Dong-Hoi The Korean Institute of Broadcast and Media Engine 2007 방송공학회논문지 Vol.12 No.2
Reversible data embedding theory has marked a new epoch for data hiding and information security. Being reversible, the original data and the embedded data as well should be completely restored. Difference expansion transform is a remarkable breakthrough in reversible data hiding scheme. The difference expansion method achieves high embedding capacity and keeps the distortion low. This paper shows that the difference expansion method with simplified location map, and new expandability and changeability can achieve more embedding capacity while keeping the distortion almost the same as the original expansion method.
Kim, Seong Soon,Im, So Hee,Yang, Jung Yoon,Lee, Yu-Ri,Kim, Geum Ran,Chae, Jin Sil,Shin, Dae-Seop,Song, Jin Sook,Ahn, Sunjoo,Lee, Hoi,Woo, Jae Chun,Ahn, Jin Hee,Yun, Chang Soo,Kim, Phiho,Kim, Hyoung Ra JAPANESE SOCIETY FOR THE STUDY OF XENOBIOTICS 2019 DRUG METABOLISM AND PHARMACOKINETICS Vol.34 No.1
Protective Effect of Copper against Pancreatic Insult in Streptozotocin-induced Diabetogenic Rat
Kim, Hyoung-Chun,Jhoo, Wang-Kee,Kim, Kyeong-Ho,Kim, Jin-Tae,Lee, Sang-Joon,Hur, In-Hoi The Pharmaceutical Society of Korea 1990 Archives of Pharmacal Research Vol.13 No.2
The present study examined the alterations in endogenous oxy-radical scaverging system of pancreatic tissue associated with the dose of 45 mg/kg steptozotocin (STZ) alone or with various combinations. The activities of pancreatic Min-superoxide dismutase (SOD) and catalase were no apparent changes in the other groups except for the Cu(II) 4 mg/kg pretreated group. The presence of 4 mg/kg of Cu(II) with or without 125 mg /kg of diethylenetriaminepentaacetic acid (DTPA) markedly attenuated the fall in activity of Cu, Zn-Sod by STZ stress. In particular, STZ-induced superoxide generation was dramatically abolished by prior administration of Cu(II) 4 mg/kg. Conculsively, We suggested the possible involvement that copper may enhance the defence mechanism of pancreatic oxidative damage by STZ challenge.
Near-Infrared Autofluorescence Image-Guided Parathyroid Gland Mapping in Thyroidectomy
Kim, Sung Won,Lee, Hyoung Shin,Ahn, Yeh-Chan,Park, Chan Woo,Jeon, Seok Won,Kim, Chang Hoi,Ko, Jae Beom,Oak, Chulho,Kim, Yikeun,Lee, Kang Dae Elsevier 2018 Journal of the American College of Surgeons Vol.226 No.2
<P><B>Background</B></P> <P>Studies to date have shown that near-infrared autofluorescence imaging (NIR) can detect the parathyroid gland during thyroidectomy. However, there are no reports that NIR imaging can identify the parathyroid gland when it's covered with fibrofatty tissue before identification by a surgeon's naked eye. In this study, we investigated the feasibility of parathyroid gland mapping to facilitate early identification of the parathyroid gland during thyroidectomy.</P> <P><B>Study Design</B></P> <P>Seventy parathyroid glands from 38 patients who underwent thyroidectomy for papillary thyroid cancer were included in this prospective study. Near-infrared with infrared illumination (NIR-IR) imaging using a 780-nm light-emitting diode was conducted at the predicted locations of the superior or inferior parathyroid glands. Parathyroid mapping was conducted in 3 stages. Stages P1, P2, and P3 were defined as imaging before identification of the gland by direct visualization, imaging after identification, and imaging in the removed specimen, respectively.</P> <P><B>Results</B></P> <P>Sixty-four parathyroid glands (92.8%) could be localized in stage P1 before surgical dissection and exposure of the gland. Five parathyroid glands that were not detected at stage P1 were identified in stages P2 (4 cases, 5.8%) and P3 (1 case, 1.4%). One parathyroid gland was not identified in either the NIR imaging or the pathologic examination. The sensitivity, specificity, and accuracy of parathyroid gland mapping in stages P1, P2, and P3 were all 100%.</P> <P><B>Conclusions</B></P> <P>Parathyroid gland mapping using our NIR-IR imaging technique was feasible, with an excellent accuracy rate. This technique may be helpful for early identification of parathyroid glands during thyroidectomy.</P>