• Journal of Gastric Cancer
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• 제12권4호
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• pp.205-209
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• 2012

In gastric adenocarcinoma, high rates of loco-regional recurrences have been reported even after complete resection, and various studies have been tried to find the role of postoperative adjuvant therapy. Among them, Intergroup 0116 trial was a landmark trial, and demonstrated the definite survival benefit in adjuvant chemoradiotherapy, compared with surgery alone. However, the INT 0116 trial had major limitation for global acceptance of the INT 0116 regimen as an adjuvant treatment modality because of the limited lymph node dissection. Lately, several randomized studies that were performed to patients with D2-dissected gastric cancer were published. This review summarizes the data about patterns of failure after surgical resection and the earlier prospective studies, including INT 0116 study. Author will introduce the latest studies, including ARTIST trial and discuss whether external beam radiotherapy should be applied to patients receiving extended lymph node dissection and adjuvant chemotherapy.

• Kyungpook Mathematical Journal
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• 제43권4호
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• pp.513-518
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• 2003

In this paper, we have proved a theorem on Hausdorff summability of Fourier series which generalizes various known results. We prove that if $${\int}_{o}^{t}\;{\mid}{\phi}(u){\mid}\;du=o(t)\;as\;t{\rightarrow}0\; and\;\lim_{n{\rightarrow}{\infty}}{\int}^{\eta}_{{\pi}/n}{\frac{{\mid}{\phi}(t)-{\phi}(t+{\pi}/n){\mid}}{t}}dt=o(n)$$ where 0 < ${\eta}$ < 1, then the Fourier series is (H, ${\mu}_n$) summable to s at t = x where the sequence ${\mu}_n$ is given by ${\mu}_n={\int}^1_0x^n{\chi}(x)\;dx\;n=0,1,2\;and\;K_n(t)=\limits\sum_{{\nu}=0}^n(\array {n\\{\nu}})({\Delta}^{{n}-{\nu}}{\mu}_{\nu}){\frac{sin{\nu}t}{t}}$.

• 대한한방내과학회지
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• 제41권5호
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• pp.800-805
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• 2020

Objectives: The aim of this study was to report the effect of Korean medicine treatment on a cerebellar infarction patient suffering from vertigo, ataxia, and nausea. Methods: We treated the patient with herbal medicine (Cheonghunhwadam-tang), acupuncture, and physical therapy. Clinical symptoms were assessed with a numeral rating scale (NRS), the Dizziness Handicap Inventory (DHI), and Study Short Form-36 (SF-36). Results: After 24 days of treatment, the vertigo, ataxia, and nausea symptoms were all improved, and the NRS, DHI, and SF-36 scores showed improvement. Conclusion: This case shows that Korean medicine treatments were effective in alleviating the symptoms of cerebellar infarction.

• 신재생에너지
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• 제9권4호
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• pp.25-31
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• 2013

This paper describes an electrical linear generator (IntELG) based on permanent magnets, containing heaving buoy, and its applications for the floating wave energy converters riding in parallel waves. The permanent magnets are integrated with the heaving buoy as a component and the integrated component is configured within the cylindrical IntELG to be filled with fluid. Thus, the IntELG can effectively be applied for the power-take-off of the floating wave energy converter riding in parallel waves. Typical applications are exampled with the Pelamis and Anaconda and they are investigated for the diversely redundant power source of nuclear power plant and the cooperation with submerged tunnel(s).

• Earthquakes and Structures
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• 제5권3호
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• pp.277-296
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• 2013

Margin of safety against potential of progressive collapse is among important features of a structural system. Often eccentricity in plan of a building causes concentration of damage, thus adversely affects its progressive collapse safety margin. In this paper the progressive collapse of symmetric and asymmetric 3-story reinforced concrete ordinary moment resisting frame buildings subjected to the earthquake ground motions are studied. The asymmetric buildings have 5%, 15% and 25% mass eccentricity. The distribution of the damage and spread of the collapse is investigated using nonlinear time history analyses. Results show that potential of the progressive collapse at both stiff and flexible edges of the buildings increases with increase in the level of asymmetry in buildings. It is also demonstrated that "drift" as a more easily available global response parameter is a good measure of the potential of progressive collapse rather than much difficult-to-calculate local response parameter of "number of collapse plastic hinges".

• Journal of Microbiology and Biotechnology
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• 제18권5호
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• pp.968-974
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• 2008

Proteomic analysis led to identification of the proteins of Vibrio vulnificus that were induced upon exposure to INT-407 cells, and 7 of which belong to the functional categories such as amino acid transport/metabolism, nucleotide transport/metabolism, posttranslational modification/protein turnover/chaperones, and translation. Among the genes encoding the host-induced proteins, disruption of purH, trpD, tsaA, and groEL2 resulted in reduced cytotoxicity. The purH, trpD, and tsuA mutants showed impaired growth in the INT-407 lysate; however, the growth rate of the groEL2 mutant was not significantly changed, indicating that the possible roles of the host-induced proteins in the virulence of V. vulnificus are rather versatile.

• 방송공학회논문지
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• 제6권3호
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• pp.234-245
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• 2001

According to market needs of better quality of service (QoS) for realtime multimedia services over Internet, they haute been standardizing RSVP, Intserv, and DiffiServ. This paper combines the benefits of RSVP/IntServ with scalable video encoding. We Propose that more important bit stream is given more priority such that limited network resources are reserved for the stream Various prioritizing approaches are proposed and compared to normal approach by using Network Simulator. The calculated QoS parameters such as Packet loss rate are used to calculate degree of degradation in video quality.

• 한국식품과학회지
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• 제25권6호
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• pp.689-693
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• 1993

${\alpha}-galactosidase$는 raffinose와 stachyose 등의 ${\alpha}-galactoside$ 결합을 분해하는 효소이다. Raffinose와 stachyose는 특히 두류에 다량 존재하는데 이들 당은 섭취후 복부팽만감의 원인 물질로 발표되었는가 하면 한편으로는 비피더스균 증식인자로 최근에 보고된 바 있기 때문에 이들 당의 인체 건강에 대한 재평가가 요구되고 있다. 본 연구에서는 이에 대한 기초 자료로 사용하기 위하여 한국인으로부터 분리된 Bifidobacterium sp. Int-57이 생산하는 ${\alpha}-galactosidase$의 효소 특성을 조사하였다. Bifidobacterium sp. Int-57은 여러 종류의 다른 장내 세균에 비하여 높은 ${\alpha}-galactosidase$ 활성을-보유하고 있고 raffinose에 의하여 효소 생산이 증진되었다. 세포의 음파 파쇄후 DEAE-celluose와 Sepharose 6B gell filtration을 거쳐 부분정제한 효소를 사용하여 PNP-${\alpha}-galactosidase$에 대한 작용을 분석한 결과 최적 pH는 7.0, 최적온도는 $40^{\circ}C$ 였고 금속이온을 5mM 농도로 처리하였을 때 효소활성을 $CoCl_{2}$는 33%, $CuCl_{2}$는 21% 저해하였다. 또한 얻어진 효소는 실제 기질로써 raffinose와 stachyose를 잘 분해하는 것으로 나타났다.

• 한국농공학회지
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• 제15권1호
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• pp.2853-2877
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• 1973

Models of cross-sections and channels were made in order to measure seepage losses. Cross-sections were made of sand, sandy clay loam and loam, their thicknesses being 30cm and 40cm, respectively. Flow depths kept in the cross-sections were 4cm, 6cm, 8cm and 10cm. Straight and curved channel models were provided so as to measure seepage losses, when constant water depths maintained at the heads of the channels were 7.3cm and 5.7cm, respectively. The results obtained in this experiment are presented as follows: 1) A cumulative seepage loss per unit length at a point in the channel varies in accordance with time and flow depth. The general equation of cumulative seepage loss may be as follows(Ref. to Table V.25): $$q_{cum}=\int_{o}^aq(a)dt+\int_a^bq(b)dt+\int_b^tq(c)dt$$ 2) In case that the variation of water depth through the channel is slight, the total seepage loss may be computed by applying the following general equation: $$\={q}_{cum}{\cdot}x=\int_o^tq_{cum}\frac{{\partial}x}{{\partial}t}dt$$ 3) Because seepage loss varies considerably according to water depth in case that the variation of flow depth through the channel is great, seepage loss should be computed by taking account of the change of flow depth. 4) The relation between time and traveling distance of water flow may be presented as the following general equation(Ref. to Table V.29): $$x=pt^r$$ 5) The ratios of the seepage losses of the straight channel to the curved channel are 1:1.03 for a flow depth of 7.3cm and 1:1.068 for that of 5.7cm. 6) The ratios of the seepage losses occurring through the bottom to those through the inclined plane in the channel cross-section are 1:2.24 for a water depth of 8cm and 1:2.47 for a depth of 10cm in case that soil-layer is 30cm in thickness. Similarly, those ratios are 1:2.62 and 1:2.93 in case of a soil-layer thickness of 40cm(Ref. to Table V.5).

• 대한환경공학회지
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• 제29권3호
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• pp.283-288
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• 2007

연속회분식반응조(SBR) 공정에서 슬러지 체류시간(SRT)에 따른 중금속의 독성도 변화를 측정하였다. 중금속은 구리(Cu), 카드뮴(Cd) 및 아연(Zn)을 사용하였고, SRT는 $2\sim30$일로 변화시켰으며, 독성도는 INT-dehydrogenase 활성도의 변화로 측정하였다. 중금속의 농도가 증가함에 따라 독성도가 증가하였으며, Cu가 Zn 및 Cd 보다 독성도가 높았다. SRT를 변화시켰을 때 $IC_{50}$ 값이 Cu의 경우 $0.37\sim1.96$ mg/L의 범위를 나타내었으며, Cd의 경우는 $15.4\sim16.9$ mg/L를 나타내었다. 또한 Zn의 경우는 $9.70\sim23.4$ mg/L의 범위를 나타내었다. Cu와 Zn의 경우, SRT가 증가함에 따라 독성이 감소하였으며, 이는 긴 SRT에서 세포외 중합체의 농도가 증가하기 때문인 것으로 판단된다. 따라서 중금속을 포함한 산업폐수를 처리하는 SBR 공정에서 SRT를 길게 운영하는 것이 바람직할 것으로 판단된다.