• 한국전자파학회논문지
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• 제15권9호
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• pp.835-840
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• 2004

현재 사용되고 있는 소형 레이더 장치는 타선의 진운동정보(진침로, 진속력)나 충돌회피정보(CPA, TCPA) 및 주위 상황 변화에 대한 다양한 물표 정보를 제공할 수 없는 문제가 있다. 따라서 본 논문에서는 이와 같은 문제에 주목하여 일반 소형 어선에 탑재되어 있는 저가형의 소형 레이더 장치로부터 analog video signal, trigger, bearing 및 heading pulse를 공급받아 현용의 자동 레이더 플롯팅 장치(Automatic Radar Plating Aid, ARPA) 레이더에서 제공하는 수준의 각종 정보를 정량적으로 추출 및 제공할 수 있는 레이더 목표 추출 장치(Radar Target Extractor, RTE)를 개발하여 소형 레이더 장치에 부착시켜 소형 연근해 어선에서도 타선의 진운동정보 및 충돌회피 정보와 같은 항해 정보를 수집, 활용할 수 있도록 하였다.

• Journal of Korean Neurosurgical Society
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• 제47권4호
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• pp.271-277
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• 2010

Objective : The purpose of this study is to evaluate the clinical characteristics and surgical outcome of cerebellopontine angle (CPA) epidermoids presenting with trigeminal neuralgia. Methods : Between 1996 and 2004, 10 patients with typical symptoms of trigeminal neuralgia were found to have cerebellopontine angle epidermoids and treated surgically at our hospital. We retrospectively analyzed the clinico-radiological records of the patients. Results : Total resection was done in 6 patients (60%). Surgical removal of tumor and microvascular decompression of the trigeminal nerve were performed simultaneously in one case. One patient died due to postoperative aseptic meningitis. The others showed total relief from pain. During follow-up, no patients experienced recurrence of their trigeminal neuralgia (TN). Conclusion : The clinical features of TN from CPA epidermoids are characterized by symptom onset at a younger age compared to TN from vascular causes. In addition to removal of the tumor, the possibility of vascular compression at the root entry zone of the trigeminal nerve should be kept in mind. If it exists, a microvascular decompression (MVD) should be performed. Recurrence of tumor is rare in both total and subtotal removal cases, but long-term follow-up is required.

• 융합신호처리학회논문지
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• 제2권4호
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• pp.91-96
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• 2001

본 논문에서는 고속 저전력 곱셈기에 적합한 CPA(Carry Propagation Adder)로 부분의 ENMODL(Enhanced NORA MODL) 설계방식을 제안한다. ENMODL 설계방식은 반복성이 CLA(Carry -Look-ahead Adder) 가산기와 같은 회뢰에서 면적을 줄 일수 있고 동작 속도를 빠르게 할수 있다. 기존의 NMODL CLA 와 비교하여 6.27%동작속도가 빠르다. 따라서 본 논문에서는 저전 고속 곱셈기에 적합한 CPA 부분을 ENMODL CLA 가산기로 설계했고, 현대 0.6$\mu\textrm{m}$2-ploy 3-metal 공정파라미터를 이용하여 HSPICE로 시뮬레이션 하여 회로의 성능을 확인하였다. 또한 CADENCE tool를 이용하여 16비트 곱셈기에 적합한 ENMODL CLA를 레이아웃 하였다.

• 한국축산식품학회지
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• 제26권3호
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• pp.394-401
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• 2006

Forty Clostridium perfringens isolates were obtained from twelve animal products, following the examination of eighty six beef, pork, broiler chicken and salami meat products, and eleven milk powder products. There were 21 isolates from salami stored at $25^{\circ}C$, 3 isolates from pork, 4 isolates from beef, 9 isolates from broiler chicken, and 3 isolates from milk powder. Only the cpa gene encoding a toxin among the 5 toxin genes tested (cpa, cpb, etx, iap, and cpe) was detected in all forty isolates, suggesting contamination with C. perfringens type A. DNA fingerprinting analysis using PCR of the tRNA intergenic spacer (tDNA-PCR) and the 16S-23S internal transcribed spacer (ITS-PCR), and randomly amplified polymorphic DNA (RAPD) analysis were attempted to differentiate the isolates. RAPD analysis was the most discriminating method among the three PCR analyses. Isolates from the same products tended to show similar RAPD patterns. Antimicrobial susceptibility tests showed that some isolates from broiler chickens had the same antibiogram with multiple resistance to streptomycin, colistin, and ciprofloxacin. Antibiograms were similar between isolates from the same livestock products, but differed considerably between the products.

• 대한한방소아과학회지
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• 제29권2호
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• pp.1-15
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• 2015

Objectives In the theory of Korean Medicine, Cicadae Periostracum (CP) has been used to treat skin diseases such as inflammatory dermatitis, tetanus and pruritus. CP can reduce heat and disperse wind. In prior studies, anti-allergic effect and anti-inflammatory effect of CP were reported. However, there has been no report regarding the correlation of CP and allergic contact dermatitis (ACD). This study was performed to show the effects of CP in ACD induced by 2,4-dinitrochlorobenzene (DNCB) in mice. Methods In this experiment, the effects of CP on biological changes were measured, such as changes in ear and spleen weight, ear and dorsum skin thickness, clinical aspect on the dorsum skin and histological changes. The effect of proliferation rate of splenocytes was also investigated in vitro and vivo study. Results In results, CP application (CPA) group and CP application and administration (CPAA) group were significantly restrained in ear weight gain and increase in ear and dorsum skin thickness compared to the control group. In addition, CPA and CPAA group showed diminished erythema, desquamation, bloodstain, and marks. Also, the histological assessment showed that CP treatement diminished thickness of epidermis, hyperkeratosis, pigmentation and parakeratosis. Conclusions In conclusion, these data suggest that CP can decrease symptoms of ACD.

• 약학회지
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• 제37권2호
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• pp.143-148
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• 1993

The objective of this study was to evaluate the sedative activity of four aporphine alkaloids (APA) and nine cyclopeptide alkaloids(CPA), which had been isolated from the seeds (sanjoin) of Zizyphus vulgaris var. spinosus, and the fruits and stem bark of Zizyphus jujuba var. inermis. The assessment of sedative activity was carried out, employing a hexobarbital-induced sleeping time method in mice. When the relative sedative potency of sanjoinine-A(CPA) was given as one unit, those of nuciferine (APA), lysicamine (APA), chlorpromazine (positive control), and sanjoinine -Ahl (an epimer of sanjoinine-A) were 13, 6.5, 5, and 3, respectively. The sedatvie activities of other CPAs were much lower than those of sanjoinine-A and -Ahl, and other APAs were not active. On heat treatment, nuciferine and lysicamine were degraded into some artifacts which exhibited no sedative activity, while sanjoinine-A was converted into sanjoinine-Ahl which showed more potent sedative activity. These results suggested that nuciferine and sanjoinine-A were major sedative components of native sanjoin, and that sanjoinine-A and its epimeric artifact, sanjoinineAhl were the active principles of roasted sanjoin. It provides a scientific basis for heat-processing (roasting) of this Oriental medicine.

• 한국항해학회지
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• 제18권2호
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• pp.41-56
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• 1994

This paper was a part of the risk management in planning a channel. It utilized Korea Marine Training & Research Institutes(KMTRI) which Houses a real-time, full-mission shiphandling simulator to examine the safety of the ship's transit in the planned channel of Asan port. 6 competent Captains participated in this study. The vessel modelled was a 60,000-ton ship. The two variables(factors) examined were environ-mental conditions such as flood-and-ebb current condition and day-and-night condition. The two variables were combined to produce four experimental conditions. To evaluate the safety of the environmental conditions, two categories of performance measures were analyzed. They were vessel's proximity to channel boundary and vessel controalbility. The findings regar-ding the effects of environmental conditions were as follows : - Closest Point of Approach(CPA) to channel boundary was enough for 60,000-ton ship to transit th-rough the channel with 99.999% confidence level. - Closest Point of Approach(CPA) to channel boundary further was under against-current condition than under with-current condition. -Vessel controlability was better under against-current condition than under with-current condition. -Vessel controlability was better under inbound transit than under outbound transit.

• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2002년도 춘계학술발표논문집 (하)
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• pp.1093-1096
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• 2002

기업간 비즈니스 거래를 하기 위해서는 B2B(Business to Business)기업이 지원하는 업무 프로세스에 관한 정보와 업무 정보 교환을 위해 기업의 기술적인 사항을 정의하고 거래 기업간에 비즈니스 거래를 위하여 거래 파트너간 합의된 상호작용을 정의한 문서가 필요하다. 이러한 문서를 XML 기반의 개방형 전자상거래 프레임 워크인 ebXML(electronic business XML)에서는 기업의 비즈니스 협업능력을 정의한 전자를 협업 프로토콜 프로파일(Collaboration-Protocol Profile:CPP)이라 하고 거래 기업간에 비즈니스 협업 상호작용을 정의한 후자를 협업 프로토콜 약정서(Collaboration-Protocol Agreement:CPA)라고 한다. 본 논문에서는 ebXML에서 거래 기업간 상호 운용성을 증대시키는 CPP문서를 효율적으로 저작 할 수 있는 생성기와 거래 기업들의 CPP 문서들을 기본으로 상호 협업을 정의한 CPA 문서를 저작 할 수 있는 Composer 시스템을 설계 및 구현하였다.

• 정보처리학회논문지:컴퓨터 및 통신 시스템
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• 제8권9호
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• pp.225-230
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• 2019

최근 사물인터넷 기술의 발전과 함께 하드웨어 디바이스에서 측정하는 센싱 데이터를 보호하기 위해 다양한 방식의 암호화 알고리즘을 채택하고 있다. 그 중 전 세계에서 가장 많이 사용하는 암호화 알고리즘인 AES(Advanced Encryption Standard) 또한 강력한 안전성을 바탕으로 많은 디바이스에서 사용되고 있다. 하지만 AES 알고리즘은 DPA(Differential Power Analysis), CPA(Correlation Power Analysis) 같은 부채널 분석 공격에 취약하다는 점이 발견되었다. 본 논문에서는 부채널 분석 공격 대응방법 중 가장 널리 알려진 마스킹 기법을 적용한 AES 알고리즘의 소프트웨어 최적화 구현 기법을 제시한다.

• Archives of Pharmacal Research
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• 제22권2호
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• pp.151-156
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• 1999

Despite the impressive antitumor activity of cisplatin, two major limitations of the drug, that is severe side effects and drug-resistance of cancer cells, make its use difficult of r cancer therapy. These limitations have resulted in a greate deal of effort having been expended into structural modifications of cisplatin. In this study, we tested two novel cisplatin analogues, (CPA)2 Pt[DOLYM] (COMP-I) and (DACH)Pt[DOLYM] (CoMP-II), for the mode of cytotoxic action against human tumor cells comparing with cisplatin and carboplatin in vitro. These two novel analogues had considerable cytotoxic activities against five kinds of human solid tumor cells, and especially COMP-II was more effective on HCT15 colon cancer cells than other compounds. In addition, COMP-II had cytostatic activity at low concentrations (10~0.3${\mu}g/ml$), but other compounds revealed little effect on tumor growth at the low concentration.