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간세포암과 간내담관암의 7<SUP>th</SUP> AJCC TNM Stage의 소개
송태진(Taejin Song) 한국간담췌외과학회 2010 한국간담췌외과학회지 Vol.14 No.2
Purpose: Cancer staging is essential in clinical cancer practice in medical and surgical oncology. Staging based on the guidelines of the American Joint Committee on Cancer (AJCC) is the most popular and is widely used in clinical fields. Early this year, the 7th edition of the AJCC cancer staging manual was published. I have compared and described the changes in the new edition from the older version to facilitate staging in clinical settings, especially for liver and intrahepatic bile duct malignancies. Methods: On the basis of the new 2010 edition of the 7th AJCC TNM cancer staging manual, I have compared hepatobiliary malignancy in Chapter 18, liver malignancy and intrahepatic bile duct malignancy in Chapter 19. Results: One of the major changes in the 7th AJCC manual compared to the 6th AJCC staging manual published in 2002 is separation of the Liver and Intrahepatic bile duct cancer chapters. In the previous edition, intrahepatic bile duct cancer was included in the liver malignancy chapter. Conclusion: There are no universal and permanent staging systems for cancer. The staging systems are ever changing to adjust for changes in treatment and prognosis of malignancies. We need to collect data in order to modify the staging correctly in collaboration with multi-institutional efforts to reduce biases in staging liver and intrahepatic bile duct cancers.
Song, Jeong-Gyu,Park, Jusang,Lee, Wonseon,Choi, Taejin,Jung, Hanearl,Lee, Chang Wan,Hwang, Sung-Hwan,Myoung, Jae Min,Jung, Jae-Hoon,Kim, Soo-Hyun,Lansalot-Matras, Clement,Kim, Hyungjun American Chemical Society 2013 ACS NANO Vol.7 No.12
<P>The synthesis of atomically thin transition-metal disulfides (MS<SUB>2</SUB>) with layer controllability and large-area uniformity is an essential requirement for their application in electronic and optical devices. In this work, we describe a process for the synthesis of WS<SUB>2</SUB> nanosheets through the sulfurization of an atomic layer deposition (ALD) WO<SUB>3</SUB> film with systematic layer controllability and wafer-level uniformity. The X-ray photoemission spectroscopy, Raman, and photoluminescence measurements exhibit that the ALD-based WS<SUB>2</SUB> nanosheets have good stoichiometry, clear Raman shift, and bandgap dependence as a function of the number of layers. The electron mobility of the monolayer WS<SUB>2</SUB> measured using a field-effect transistor (FET) with a high-k dielectric gate insulator is shown to be better than that of CVD-grown WS<SUB>2</SUB>, and the subthreshold swing is comparable to that of an exfoliated MoS<SUB>2</SUB> FET device. Moreover, by utilizing the high conformality of the ALD process, we have developed a process for the fabrication of WS<SUB>2</SUB> nanotubes.</P><P><B>Graphic Abstract</B> <IMG SRC='http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/ancac3/2013/ancac3.2013.7.issue-12/nn405194e/production/images/medium/nn-2013-05194e_0006.gif'></P><P><A href='http://pubs.acs.org/doi/suppl/10.1021/nn405194e'>ACS Electronic Supporting Info</A></P>
Overexpression of Neuron-Specific Enolase as a Prognostic Factor in Patients with Gastric Cancer
Park, Taejin,Lee, Young-Joon,Jeong, Sang-Ho,Choi, Sang-Kyung,Jung, Eun-Jung,Ju, Young-tae,Jeong, Chi-Young,Park, Miyeong,Hah, Young-Sool,Yoo, Jiyun,Ha, Woo-Song,Hong, Soon-Chan,Ko, Gyung Hyuck The Korean Gastric Cancer Association 2017 Journal of gastric cancer Vol.17 No.3
Purpose: Enolase is a cytoplasmic enzyme that catalyzes the conversion of 2-phosphoglycerate to phosphoenolpyruvate in the glycolytic pathway. The aim of this study was to investigate whether the overexpression of neuron-specific enolase (NSE) can serve as a prognostic factor in patients with gastric cancer (GC). Materials and Methods: To assess its prognostic value in GC, NSE expression was measured by immunohistochemistry in a clinically annotated tissue microarray comprising of 327 human GC specimens. Cytoplasmic NSE expression was scored from 0 to 4, reflecting the percentage of NSE-positive cells. Results: In terms of histology as per the World Health Organization criteria (P=0.34), there were no differences between the NSE overexpression (NSE-OE) and NSE underexpression (NSE-UE) groups. The NSE-OE group showed a significantly lower rate of advanced GC (P<0.01), lymph node metastasis (P=0.01), advanced stage group (P<0.01), cancer-related death (P<0.01), and cancer recurrence (P<0.01). Additionally, a Kaplan-Meier survival analysis revealed that the NSE-OE group had longer cumulative survival times than the NSE-UE group (log-rank test, P<0.01). However, there were no significant differences in the serum levels of NSE expression in patients with GC and healthy volunteers (P=0.28). Conclusions: Patients with NSE overexpressing GC tissues showed better prognostic results, implying that NSE could be a candidate biomarker of GC.
스틸-알루미늄 하이브리드 구조를 적용한 전륜 서브프레임 연구
김태진(Taejin Kim),윤석진(Sukjin Yoon),박정환(Junghwan Park),홍학표(Hakpyo Hong),김준형(Junhyung Kim),송권민(Gwonmin Song) 한국자동차공학회 2020 한국자동차공학회 학술대회 및 전시회 Vol.2020 No.11
The most important point in the future automotive industry is about managing the enhanced environmental regulation. To meet them, companies are trying to increase fuel efficiency and ligten weight. Subframe that is located under the body delivers the noise and vibration and endures fatigue. In this reason, normally steel is used in many subframes, but it has high weight. Substituting steel with aluminum is able to lighten weight at a high ratio. This study will introduce the method how to develop an aluminum die-casting bracket, which is able to lighten weight and cost reduction by substituting steel with aluminum. By developing this bracket, we achieved the result that is weight reduction by 8% and the decrease in the number of parts by 20%.
An Efficient Technique to Protect AES Secret Key from Scan Test Channel Attacks
Jaehoon Song,Taejin Jung,Jihun Jung,Sungju Park 대한전자공학회 2012 Journal of semiconductor technology and science Vol.12 No.3
Scan techniques are almost mandatorily adopted in designing current System-on-a-Chip (SoC) to enhance testability, but inadvertently secret keys can be stolen through the scan test channels of crypto SoCs. An efficient scan design technique is proposed in this paper to protect the secret key of an Advanced Encryption Standard (AES) core embedded in an SoC. A new instruction is added to IEEE 1149.1 boundary scan to use a fake key instead of user key, in which the fake key is chosen with meticulous care to improve the testability as well. Our approach can be implemented as user defined logic with conventional boundary scan design, hence no modification is necessary to any crypto IP core. Conformance to the IEEE 1149.1 standards is completely preserved while yielding better performance of area, power, and fault coverage with highly robust protection of the secret user key.
Hydrogen plasma-enhanced atomic layer deposition of hydrogenated amorphous carbon thin films
Choi, Taejin,Yeo, Seungmin,Song, Jeong-Gyu,Seo, Seunggi,Jang, Byeonghyeon,Kim, Soo-Hyun,Kim, Hyungjun Elsevier 2018 Surface & coatings technology Vol.344 No.-
<P><B>Abstract</B></P> <P>Hydrogenated amorphous carbon (a-C:H) thin films were prepared by hydrogen plasma-enhanced atomic layer deposition (PE-ALD). The a-C:H thin films were grown at low temperatures in the range of 150–350 °C using CBr<SUB>4</SUB> as the precursor and hydrogen plasma as the reactant. Raman spectroscopy, secondary ion mass spectrometry, X-ray photoelectron spectroscopy and Fourier transform infrared measurements showed that the a-C:H films consist of hydrogenated nanocrystalline sp<SUP>3</SUP> diamond, disordered sp<SUP>3</SUP> carbon and sp<SUP>2</SUP>-hybridized graphitic carbon incorporated with oxygen as a main contaminant. Moreover, the incorporation of bromine and oxygen in the a-C:H films was significantly reduced upon increasing the growth temperature from 200 to 300 °C. Surface hydroxylation and precursor exposure pretreatments were employed to saturate the adsorption of CBr<SUB>4</SUB> precursors and enhance the initial nucleation of carbon during the deposition of the a-C:H thin film by the PE-ALD process. In addition, the conformal growth of a-C:H thin films on three-dimensional structures was confirmed.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Hydrogen plasma-enhanced atomic layer deposition of hydrogenated amorphous carbon (a-C:H) thin films was developed. </LI> <LI> Substrate pretreatments by plasma hydroxylation and CBr<SUB>4</SUB> exposure are helpful for the uniform deposition of a-C:H films. </LI> <LI> a-C:H thin films can be deposited on three-dimensional structures in a conformal manner. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>