• Proceedings of the Korean Institute of Communication Sciences Conference
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• 2004.11a
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• pp.228-228
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• 2004

• Bulletin of the Korean Chemical Society
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• v.6 no.1
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• pp.33-36
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• 1985

The luminescence intensity of $Tb^{3+}$ bound to picolinic acid, squaric acid, and 2,3-pyrazinedicarboxylic acid has been studied in water and water-ethanol mixtures. It has been found that the emission intensity of $Tb^{3+}$ in the complexes is enhanced with the increase of ethanol content in water-ethanol mixtures. Several factors affecting on the emission intensity of $Tb^{3+}$ in waterethanol mixtures are discussed.

• Bulletin of the Korean Chemical Society
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• v.15 no.7
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• pp.599-602
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• 1994

• Proceedings of the Korean Society of Crop Science Conference
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• 2020.11a
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• pp.118-118
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• 2020

• The Transactions of the Korea Information Processing Society
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• v.4 no.12
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• pp.3088-3096
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• 1997

In this paper, we present WWW system over native ATM services. The use of native ATM services through ATM API can provide better performance and functionality than that of IP over ATM, LAN Emulation or Multiprotocol over ATM. Our WWW browser and server provide advanced WWW services based on enhanced performance and guaranteed QoS support by using native ATM service benefits. This paper describes and compares advantages and disadvantages of Native ATM Services and ATM Internet Services, and addresses ATM API standardization and development trend that are made by the ATNI Forum for the support of native ATM services, and then describes the architecture and operation of our WWW browser and server using ATM API. The system architecture is based on HTTP over ATM API capable of supporting guaranteed QoS over its connections. The system defines and uses new HTML attributes within hyperlinking HTML elements for the description of ATM QoS and traffic characteristics that are derived from UNI signaling 3.1 connection characteristics information elements. Our system uses WinSock 2 API as its ATM API.

• Journal of Yeungnam Medical Science
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• v.15 no.1
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• pp.67-74
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• 1998

Successful management of duodenal obstruction in newborn infant implies not only satisfactory nutrition but also achievement of normal growth. To aid early diagnosis and management, we evaluated the diagnostic methods, operative interventions and clinical characteristics of thirty-nine infants with congenital duodenal obstructions. In the 11-year period from July 1986 through June 1997, thirty-nine patients with congenital duodenal obstruction (23 males and 16 females) were treated and reviewed at the Department of Pediatric Surgery, Yeungnam University Hospital. The ratio of male to female was 1.4:1, and 29 cases(74.1%) among total 39 patients were newborn. There were 5 premature patients and 16 patients of small for gestational age. The most common causes of the congenital duodenal obstruction was malrotation (26 cases, 66.7%) and followed by annular pancreas (9 cases, 23.1 %), type 1 atresia (3 cases, 7.7%) and wind-sock anomaly (1 case, 2.6%). Common symptoms were vomiting, abdominal distention, jaundice. Plain abdominal X-ray study combined with upper gastrointestinal series was the most commonly used diagnostic method. The operative procedures were performed by same pediatric surgeon utilizing Ladd's procedure in 26, duodenoduodenostomy in 8, duodenojejunostomy in 4, excision of wind-sock membrane in 1. A total of 15 associated congenital anomalies were found in 9 patients. Postoperative complications occurred in 13(33.3%). Overall mortality was 2.6%(1/39). Bilious vomiting and plain abdominal radiologic study were most useful for the diagnosis of congenital duodenal obstruction. Early diagnosis and operative intervention were important to prevent complications such as sepsis and peritonitis.

• Bulletin of the Korean Chemical Society
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• v.26 no.8
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• pp.1197-1202
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• 2005

The Ln(III) complexes with picrate ligand, $[Sm(Pic)_2(H_2O)_6]Pic{\cdot}6H_2O$, 1, and $[Ho(Pic)(H_2O)_7](Pic)_2{\cdot}3H_2O$, 2, have been synthesized and their crystal structures are analyzed by X-ray diffraction methods. Complex 1, crystallizes in the monoclinic $P2_1/n$ space group and complex 2 in the triclinic P-1 space group. In complex 1, two picrate ligands coordinate to the Sm(III) ion, one of them in the bidentate fashion. There are one picrate anion and six water molecules in the crystal lattice. The nine-coordinated Sm(III) ion forms a slightly distorted tricapped trigonal prism. In complex 2, only one picrate ligand coordinates to the metal ion as a monodentate. There are two picrate anions and three water molecules in the crystal lattice. The eight-coordinated Ho(III) ion forms a distorted bicapped trigonal prism. Based on the results of the TG-DTG and DSC thermal analysis, it was analyzed that the lanthanide picrate complexes 1 and 2 are thermally decomposed in three distinctive stages, the dehydration, the picrate decomposition, and the formation of the metal oxide.

• Proceedings of the Korean Information Science Society Conference
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• 2005.11a
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• pp.736-738
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• 2005

본 논문에서는 컬러 이미지의 색을 보존하면서 콘트라스트를 향상 시키는 히스토그램 평활화 기법을 제안 하였다. 과도한 영상의 밝기 변화를 조절하기 위해 히스토그램의 중간 값을 사용하였다. 히스토그램이 좌측 혹은 우측에 집중되어 분포하는 경우 최대 콘트라스트를 얻기 위해 엔드 인 콘트라스트 스트래칭을 추가 적용하였다. 제안된 알고리즘을 적용하면 색을 보존하면서 최대 콘트라스트를 얻을 수 있다.

• Transactions of the Korean Society for Noise and Vibration Engineering
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• v.25 no.4
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• pp.255-265
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• 2015

Shelter system is applying to weapon systems as usage of performing specific mission with arranging several electronic equipments and operators. Recently the electronic equipments is changing from development products to COTS(commecial off-the-shelf) for demonstrating high performance at low cost. As internal operators of shelter system conduct several missions for specific or long time in this present situation, one of the most important element considering the best combat power is internal noise level. Therefore, I desire to analyze the features and foresee multiple noise level with test for conforming whether requirements of design is met or not in this research paper.

• 제어로봇시스템학회:학술대회논문집
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• 2004.08a
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• pp.1870-1873
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• 2004

The objective of this study is to investigate the possibility of chemical process synthesis purely based on mathematical programming when given an objective, feed conditions, product specifications, and model equations for available process units. A method based on a state space approach is proposed, and applied to an example problem with a reactor, a heat exchanger, and a separator. The results indicate that a computer can automatically synthesize an optimal process without any heuristics or expertise in process design provided that global optimization techniques are improved to be suitable for large problems.