• Korean Journal of Radiology
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• v.22 no.10
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• pp.1640-1649
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• 2021

Objective: Flattening in the anteroposterior direction (AP flattening) of the terminal ileum (TI) or sigmoid colon (SC) lying across the psoas muscle, on magnetic resonance enterography (MRE), might mimic bowel inflammation in the coronal view. This study investigated the prevalence of AP flattening and the factors associated with its development. Materials and Methods: A total of 364 surgery-naïve patients with Crohn's disease (CD) who had undergone MRE were retrospectively reviewed. AP flattening was defined as a luminal collapse in the anteroposterior direction, with a bowel width in the axial plane < 1/4 of the normal diameter without reduction of bowel width in coronal images. The prevalence of AP flattening of the TI and SC on MRE in patients with bowel segments lying across the psoas muscle was determined. We further compared the rate of AP flattening between MRE and computed tomography enterography (CTE) in a subcohort of patients with prior CTE. The factors associated with AP flattening were analyzed using multivariable logistic regression in a subcohort of patients with endoscopic findings of TI. Results: Three hundred and twenty-two and 363 patients, respectively, had TI and SC lying across the psoas muscle. The prevalence of AP flattening on MRE was 7.5% (24/322) in TI and 5.2% (19/363) in SC. The prevalences were significantly higher on MRE than on CTE in both the TI (7.3% [12/164] vs. 0.6% [1/164]; p = 0.003) and SC (5.8% [11/190] vs. 1.6% [3/190]; p = 0.039). AP flattening of the TI was independently and strongly associated with the absence of CD inflammation on endoscopy, with an adjusted odds ratio of 0.066 (p = 0.003) for the presence versus the absence (reference) of inflammation. Conclusion: AP flattening of the TI or SC lying across the psoas muscle was uncommon and predominantly observed on MRE of the bowel without CD inflammation.

• Journal of the Institute of Electronics Engineers of Korea SD
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• v.44 no.6 s.360
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• pp.19-27
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• 2007

This paper presents power supply-insensitive Gbps low power LVDS I/O circuits. The proposed LVDS I/O has been designed and simulated using 1.8V, $0.18\;{\mu}m$ TSMC CMOS Process. The LVDS I/O includes transmitter and receiver parts. The transmitter circuits consist of a differential phase splitter and an output stage with the switched capacitor common mode feedback(SC-CMFB). The differential phase splitter generates a pair of differential signals which provides a balanced duty $cycle(50{\pm}2%)$ and phase difference$(180{\pm}0.2^{\circ})$ over a wide supply voltage range. Also, $V_{OD}$ voltage is 250 mV which is the smallest value of the permissible $V_{OD}$ range for low power operation. The output buffer maintains the required $V_{CM}$ within the permissible range$(1.2{\pm}0.1V)$ due to the SC-CMFB. The receiver covers a wide input DC offset $range(0.2{\sim}2.6\;V)$ with 38 mV hysteresis and Produces a rail-to-rail output over a wide supply voltage range. Beside, the designed receiver has 38.9 dB gain at 1 GHz, which is higher than conventional receivers.

• Information and Communications Magazine
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• v.29 no.7
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• pp.62-72
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• 2012

UI 분야 국제 표준화 활동은 ISO/IEC/JTC1/SC35가 주도하며 키보드 자판 배열이나 GUI에서 사용이 되는 아이콘, 위젯, 등의 국제 표준화와 같은 전통적인 활동을 바탕으로, 다양한 언어와 문화의 장벽을 극복하기 위한 국제 표준화 활동, 장애인과 고령자의 접근성 향상 및 보장을 위한 국제 표준화 활동과 직관적이고 풍성한 기능을 가진 미래형 UI에 대한 국제 표준화 활동을 펼치고 있다. SC35 한택위원회는 우리나라가 확보하고 주도하는 미래 지향적인 UI 기술을 국제 표준에 반영하려는 활동에 초점을 맞추고 있다. 본고에서는 SC35 중심의 국제 표준화 활동을 소개하고, 우리나라가 추진 중인 웹 브라우저나 문서 뷰어를 위한 마우스 제스쳐 기반의 UI 국제 표준과 3차원 손 동작인식 기반의 3D UI 국제 표준에 대하여 설명한다. 그리고, 우리정부에서 제정 고시한 장애인들이나 고령자 등을 위한 모바일 기기용 애플리케이션의 접근성 향상 및 보장을 위한 지침을 소개한다.

• Journal of the Korean Ceramic Society
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• v.45 no.12
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• pp.788-795
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• 2008

An electrolyte supported SOFC cell was tested at $800^{\circ}C$ in air for 3600 h with an applied current density of $200\;mA/cm^2$ to examine possible cathode degradation issues. A scandium- stabilized zirconia (ScSZ) with additional manganese doping (ScSZ: Mn) was used as electrolyte. A strontium and copper-doped lanthanum ferrite (LaSrCuFe) and platinum were used as cathode and quasi-anode material, respectively. The DC resistance was logged over the complete testing period. Additionally, impedance spectroscopy was used from time to time to track changes of the cell in-situ. Post-test analysis of the cell using methods like scanning electron microscopy imaging and other electrochemical testing methods allow the identification of different degradation sources. The results indicate a promising combination of electrolyte and cathode material in terms of chemical compatibility and electrical performance.

• Journal of the Korean Society of Food Science and Nutrition
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• v.26 no.5
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• pp.860-865
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• 1997

Investigations were performed on the effects of extraction temperature, pressure, time on solubility and selectivity of egg yolk lipid and cholesterol, and color and fatty acid composition of the residue in supercritical carbon dioxide(SC-Co$_2$) extraction. Lipid and cholesterol solubility increased as the increase of Co$_2$ density and was found to strongly depend on the extraction pressure rather than the extraction temperature. The relative concentration of cholesterol in the extract increased with an increase in temperature and decreased with an increase in pressure and extraction time. extraction of dried eg yolk for 3hr at 4$0^{\circ}C$/276 bar removed 46.1% of cholesterol from the residual egg yolk with a yield of 63.2%. SC-Co$_2$ extraction produced a lighter color egg yolk with less redness and yellowness. As the extraction time increased, the resultant residual egg yolk became more saturated with fatty acids. SC-$CO_2$ extraction offers a safe, natural method for removing cholesterol from dried egg yolk.

• Journal of the Korean Society for information Management
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• v.10 no.2
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• pp.87-109
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• 1993

Thls study attempts to determ~ne the c~tedness of a scient~fic research paper wr~tten/published In Korea, one of the scient~fically per~phrral countries and the citednes ot a Korean sc~entist In mathematlc and chemistry. It was found that there is a neglig~ble proportion of c~tatlons In papers by fore~gn scientists to scient~fic l~terature from Korean and Korean sc~ent~sts. Thus, it can be true that Korean sclence or sc~ent~sts make a relatively small contr~but~on to world science: however it 1s also true that the per~pehral journal has ~ t s own scientif~c value follocal area.

• Review of KIISC
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• v.3 no.4
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• pp.69-88
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• 1993

이 시리즈를 시작하면서 제3권 제2호(1993.6)에 sc27국제표준화 현황을 정리해 보고했었다. 필자와 산업연구원의 이경석 박사가 1993년 10월 파리에서 열린 SC27 국제표준 총회에 다녀와 새로 정리된 최신의 표준화현황은 11월 20일 개최되는 1993년도 한국통신정보보호학회 학술대회에서 특별보고회로 발표되며그 내용은 논문집에 포함되어 있으니 참고 바란다. 이번 호에는n비트의 입출력을 갖는 블럭암호화 알고리즘의 사용방법에 관해 1991년에 국제표준이 된 문서 IS 10116를 소개한다. 이보다 앞서 1987년 IS 8372로 거의 같은 내용의 국제표준이 n=64의 경우에 한정되어 만들어져 사용되어왔다. 1992년 정보보안 국제총회에서 IS 10116이 IS8372의 내용을 포함하며 IS 10116가 IS 8372보다 더 잘 서술되어 있으므로 IS 3872를 국제표준으로 놓아두자는 결론을 냈었다.

• Journal of Oral Medicine and Pain
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• v.10 no.1
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• pp.17-31
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• 1985

Personality characteristics of TMJ dysfunction patients was studied by means of MMPI test. 100 TMJ dysfunction patients and 100 healthy controls were subjected at the Department of Oral Diagnosis and Oral Medicine, Pusan National University Hospital, during the period from March 1983 to February 1985. All the patients were divided into 2 groups namely, acute group and chronic group by duration of path and discomfort problems for 6 months or longer. The obtained results were as follows : 1. Mean value of T-scores on each clinical scale was within normal range in both patient and control group. 2. There was significant difference in scales of Hs, D. Hy, Pt, Sc and IR between patient and control group. 3. As compared with control group by sexual subclass, scales of Hs, Hy and Pt of both sex, scales of Sc and M-DI of male and scales of D of female in patient group were significantly higher than those in control group 4. The longer was duration of TMJ problems, i.e., in increasing order of control, acute and chronic group, the higher was mean value of T-scores on scales of Hs, D, Hy, Pt, Sc, IR and M-DI. 5. Mean values of T-scores on scales of Hs, D and Hy were the highest in all the clinical scales of total class and subclasses(i. e. male group, female group, acute group and chronic group) with TMJ dysfunction and showed 1-:i-2 (Hs, -Hy, -D. ) profile pattern, conversion "V.ot;V.

• BMB Reports
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• v.40 no.6
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• pp.875-880
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• 2007

Glucose oxidase (GOD) is an oxidoreductase catalyzing the reaction of glucose and oxygen to peroxide and gluconolacton (EC 1.1.3.4.). GOD is a widely used enzyme in biotechnology. Therefore the production of monoclonal antibodies and antibody fragments to GOD are of interest in bioanalytics and even tumor therapy. We describe here the generation of a panel of monoclonal antibodies to native and heat inactivated GOD. One of the hybridomas, E13BC8, was used for cloning of a single chain antibody(scFv). This scFv was expressed in Escherichia coli XL1-blue with the help of the vector system pOPE101. The scFv was isolated from the periplasmic fraction and detected by western blotting. It reacts specifically with soluble active GOD but does not recognize denatured GOD adsorbed to the solid phase. The same binding properties were also found for the monoclonal antibody E13BC8.

• Journal of Digital Convergence
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• v.13 no.12
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• pp.193-202
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• 2015

The development of the security solutions that can provide a variety of security services is needed urgently. For development of the security solutions, analysis of international standard security technology is the key. In this paper, international organizations' standardization(ISO/IEC JTC1 SC27, ITU-T SG-17, IETF Security Area, etc.) and the current trend of the standard security technology are mainly analyzed. The core of the latest security technology(Application Bridging, DNS-based Authentication, HTTP Authentication, IP Security, Javascript Security, Authentication Technology Next Generation, Managed Incident, Web Authorization Protocol, Security Automation, Transport Layer Security, etc.) is analyzed focusing on 18 working groups of the IETF.