• Textile Coloration and Finishing
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• v.17 no.3 s.82
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• pp.8-15
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• 2005

Cationic dyeable polyester(CDP) fabric was annealed at varying temperatures range from $120^{\circ}C$ to $220^{\circ}C$ for 1, 3, and 5 min under tension. Dyeing rates of CDP fabrics were measured with cationic and disperse dyes at $100^{\circ}C$ and $120^{\circ}C$ in water system. Also X-ray diffraction pattern, DSC thermograms and dyeability of fabric with cationic and disperse dyes were investigated. The intensities of X-ray diffraction peaks of annealed fabric were increased with increasing in annealed temperature, and peak became sharp with heat setting temperature. The apparent color depth (K/S) of CDP fabric initially decreased with increase of heat-setting temperature up to $160\~180^{\circ}C$ and then increased at higher temperature. The shearing modulus(G) and surface roughness were increased with annealing temperature.

• Proceedings of the KWS Conference
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• 2009.11a
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• pp.25-25
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• 2009

종래의 위보기 자세에서 용접은 중력이 모재의 표면으로 향하고 있어 용융금속이 중력에 의해 표면방향으로 흘러내리게 되어 용접 실시가 불가능하였다. 이에 Shield Gas Force, Trailing Gas Force 그리고 Ahead Gas Force를 적절히 적용하여 Position Welding에서 중력으로 인해 Molten Metal이 처지는 문제를 극복하여 생산성 향상으로 연결할 수 있음을 선행 실험을 통해 확인하였으나 기존의 C(Convergent)형, CP(Convergent Divergent)형 및 P(Parrallel)형 가스 노즐은 용접조건에 따라 실드 가스의 소모량이 많고, 토출되는 실드가스력이 부족하여 용접시 볼록한 이면 비드 형성을 위한 용융 풀을 효과적으로 제어 할 수 없다. 따라서 본 연구에서는 동일량의 실드 가스 공급시 가스 노즐을 통해 토출되는 실드가스의 소모를 줄이고 실드가스력을 극대화하여 저가의 고생산성을 가진 친 환경 용접기술(Green welding)에 부합하는 CDP(Convergent Divergent Parrallel)형 가스 노즐을 제작하여 기존의 CP형 가스 노즐과 비교 분석하였다. 또한 Overhead Position에서의 비드형상제어와 Flat Position에서 방풍효과를 비교해 보았다. 그 결과 CDP Nozzle은 CP Nozzle보다 동일한 유량에서 풍속은 3.5배, 냉각능력은 1.5배, 가스압력은 6.25배로 우수한 성능을 확인할 수 있었고, Overhead Position에서 가스 유량을 동일하게 하여 용접하였을 때 CP Nozzle의 경우 오목한 이면비드가 나타났지만 CDP Nozzle의 경우 볼록하게 양호한 이면비드 형상이 나타났고, Flat Position에서의 방풍효과 비교실험에서 CDP Nozzle에서는 깊고 균일한 용입을 CP Nozzle에서는 불안정한 용입이 나타났는데 이는 CDP Nozzle의 경우 풍속에 의한 Arc Blow가 적게 발생하여 상대적으로 더 나은 용입을 확인하였다.

• The Magazine for Energy Service Companies
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• s.57
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• pp.36-39
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• 2009

탄소정보공개프로젝트 (The Carbon Disclosure Project, 이하 CDP라 칭함)는 투자자를 대신하여 주요 기업의 온실가스 관련 정보를 공개하도록 요구 하고 공개된 정보에 근거하여 각 기업의 온실가스 관련 리스크를 파악하여 투자 결정의 자료로 이용하고자 하는 영국에 본부를 둔 비영리 민간기구이다. 특히 지난해부터 CDP 한국위원회가 정식 활동을 시작하면서 국내에서도 관심을 끌고 있다.

• Journal of the Korean Society of Radiology
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• v.10 no.2
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• pp.101-107
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• 2016

It was performed in this study to provide basic information on production of accurate gonadal shield by measuring pelvic indicators of TDP SD ISP IAD 1CDP and 2CDP. when pelvis ap and hip ap examination was taken, there is no exact position of the reference point of the shield and anatomically more difficult to shield gonad in the case of female infants than male. Results analyzed by height in 70~80 and 110~120 were approximately 30mm 13mm 19mm 20mm 2mm and 7mm difference in TDP SD ISP IAD 1CDP and 2CDP respectively. This value was statistically significant (P<0.05). Results analyzed by age of 2~3 and 6~7 were different on SD ISP IAD and 2CDP by 17mm 10mm 12mm 16mm respectively. it was also statistically significant. However 1CDP was not statistically significant(P>0.05). the difference was nearly about 1mm. Analysis of results by weight of less than 10 and more than 20 showed difference on TDP SD ISP IAD 1CDP and 2CDP by 28mm 14mm 11mm 20mm 3mm and 8mm. it was statistically significant (P<0.05). From the above results, female infants pelvic indicator measurement can be used as reference value for shielding production and especially IAD can present a reference point on the shielding position. Pelvis indicators of female infant has a close correlation. In addition, as it is showen in the statistical difference analysis to have an accurate ovarian shield, gonad shield would be produced and used by height, age and weight.

• Proceedings of the Korean Society of Applied Pharmacology
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• 1994.04a
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• pp.167-167
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• 1994

Thioglycerol과 Glycerol을 출발물질로 1번 탄소(C) 위치의 산소(O),또는 황(S)에 octadecyl기로 alkylation한 후, 2번 탄소(C)위치 산소(O)를 palmitoyl기로acetylation시켜 만든 thioether lipid 및 ether lipid유도체를 인산화시킨 rac-1-S-octa-decyl-2-O-palmitoyl-1-S-thioglycerol-3-phosphate (DL-PTBA-P)와 rac-1-O-octadecyl-2-O-palmitoylglycerol-3-phosphate (DL-PBA-P)등을 합성하였다. 이들 thioether lipid 및 ether lipid유도체는 그 자체로도 in vitro와 in vivo에서anti-neoplastic property를 가지고 있는데, 이들 중간체를 핵산 화합물로써 역시 강한 항암 작용에도 불구하고 독성등 부작용이 문제가 되고있는 Ara-C (일명 Cytarabine)의 인산화물인 ara-CMP morpholidate와 conjugation시켜 최종물질로서 ara-CDP-DL-PCA, ara-CDP-DL-PBA, ara-CDP-DL-PTCA 및 ara-CDP-DL-PTBA등을 합성하였다. 이들 중 ara-CDP-DL-PTBA가 본 과제와 관련하여 항암제로서 최종 개발하고자하는 주요 물질인 Cytoros이다.

• Journal of the East Asian Society of Dietary Life
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• v.5 no.3
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• pp.233-238
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• 1995

CDP-choline is known as an intermediate of lecithin biosynthesis, and as an important drug for nervous diseases of the brain, For the bioconversion of CMP and choline to CDP-choline, ATP is required as an energy source. In these studies, the biosynthetic reaction of CDP-choline was coupled with ATP regenerating system by glycolysis. As a microorganism containing the highest conversion activity of CMP and choline to CDP-choline, Candida utilis ATCC 42416 was selected. The optimum reaction condition were 50mM choline chloride, 20mM CMP, 100mM potassium phosphate (pH8.0), 300mM glucose, 50mM MgSO4, 10% dried cells with shaking incubation at 3$0^{\circ}C$. The reaction was thus performed for 10 hours under the above optimum conditions. The concentration of CDP-choline was 16mM(80% in conversion ratio).

• Journal of Information Processing Systems
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• v.2 no.2
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• pp.88-94
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• 2006

In wireless cellular networks, previous researches on admission control policies and resource allocation algorithm considered the QoS (Quality of Service) in terms of CDP (Call Dropping Probability) and CBP (Call Blocking Probability). However, since the QoS was considered only within a predetermined cell capacity, the results indicated a serious overload problem of systems not guaranteeing both CDP and CBP constraints, especially in the hotspot cell. That is why a close interrelationship between CDP, CBP and cell capacity exists. Thus, it is indispensable to consider optimal cell capacity guaranteeing multiple QoS (CDP and CBP) at the time of initial cell planning for networks deployment. In this paper, we will suggest a distributed determination scheme of optimal cell capacity guaranteeing both CDP and CBP from a long-term perspective for initial cell planning. The cell-provisioning scheme is performed by using both the two-dimensional continuous-time Markov chain and an iterative method called the Gauss-Seidel method. Finally, numerical and simulation results will demonstrate that our scheme successfully determines an optimal cell capacity guaranteeing both CDP and CBP constraints for initial cell planning.

• Proceedings of the Korean Society of Applied Pharmacology
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• 1994.04a
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• pp.169-169
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• 1994

항암 및 면역조절작용을 가지고 있으며 그 자체가 서방성 prodrug으로서 약효를 나타낼것으로 기대되는 ara-C와 etherphospholipid의 conjugate인 ara-CDP-DL-PCA.2Na, ara-CDP-DL-PBA.2Na, 및 ara-CDP-DL-PMA.2Na 3종의 BR-8702-2의 micellar soultion을 투여시료로 하여 제암력 평가를 실시하였다. DBA/2J 마우스(평균 체중 25g, 수컷)에 L$_{1210}$임파성 백혈병 세포를 이식한 후, 24시간 후 약물을 복강내에 투여하는 실험계 에서 400mg/kg/day, 단회투여 및 80 혹은 100mg/kg/day, 1~5일간 투여로 ILS%값이 229~543으로 우수한 제암력을 보였다. 또한 BDF$_1$ mice(15~20g)의 axillary region에 3㎣의 Lewis Lung Tumor를 피하로 이식한후 약물투여를 통한 제암효과를 관찰하였다. 100, 200, 300mg/kg/day의 단회 투여계 에서는 수명연장 효과가 없었다. 한편, 20, 40, 60mg/kg/day, 1~5일간의 투여계 에서는 ara-CDP-DL-PCA.2Na만이 효과가 있었는데 농도에 역순하여 저농도인 20mg/kg/day, 1~5일간의 투여계에서 가장 효과가 있었으며 그때의 ILS%는 32.3%였고 투여기간중의 체중변화는 거의 보이지 않았다. 한편 NICOM 370 Dynamic Light Scattering을 이용하여 투여시료로한 micellar solution의 입자도를 분석한 결과 ara-CDP-DL-PCA.2Na는 4.2nm size의 것이 99.48%를 차지하고 있었다. ara-CDP-DL-PCA.2Na의 ICR 마우스를 이용한 급성독성 시험에 있어서 경구투여에서의 LD$_{50}$값은 암,수컷 모두 5000mg/kg이상 이었고, 정맥내 투여 에서는 432mg/kg이었다. 실험과정중 생존동물의 일반적 이상소견등은 없었으나 정맥내 투여의 경우에서 체중증가 억제현상이 있었다.

• Textile Coloration and Finishing
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• v.34 no.4
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• pp.224-233
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• 2022

Recently, consumer tastes of various classes at home and abroad prefer comfortable, unadorned, and simple clothing, and the athleisure trend, which can be used freely in daily life as well as exercise, has expanded to overall clothing products. Existing materials used for athleisure are composite knitted fabrics using polyester yarn and PU yarn, which has problems due to a chronic lack of color fastness and contamination by dyes even when PU laminating is applied, making it difficult to apply various colors. There is a quality problem in which deformation of the product occurs due to lack of durability. In this study, CDP yarn(75de/72f) and PU yarn(40de) were selected to commercialize the circular knitting for athleisure using CDP yarn in order to solve the problems that occur in the dyeing and laminating process when using polyester materials. CDP yarns were used to knit into single(CP75-S) and double(CP75-D) knit and single knit were found to be suitable as athleisure fabrics. After pretreatment and treatment under various conditions, the stainability of CDP circular knitting was examined. After pretreatment and dyeing process under various conditions, the property of scouring and dyeability of CP75-S were evaluated.

• Journal of Mechanical Science and Technology
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• v.20 no.9
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• pp.1483-1491
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• 2006

The pumping performance of molecular drag pumps (MDP) has been investigated experimentally. The exporimented MDPs are a disk-type drag pump (DTDP), helical-type drag pump(HTDP) and compound drag pump (CDP), respectively In the case of the DTDP, spiral channels of a rotor are cut on both upper surface and lower surface of a rotating disk, and the corresponding stator is a planar disk. In the case of the HTDP, the rotor has six rectangular grooves. The CDP consists with the DTDP, at lower part, and with the HTDP, at upper part. The experiments are performed in the outlet pressure range of $0.2{\sim}533Pa$. The inlet pressure and compression ratio are measured under the various conditions of outlet pressure and throughputs, and nitrogen is used for the test gas. At the outlet pressure of 0.2Pa, the ultimate pressure has been reached to $1.0{\times}10^{-2}Pa$ for the HTDP, $1.3{\times}10^{-4}Pa$ for the DTDP, and $3.6{\times}10^{-5}Pa$ for the CDP. The maximum compression ratio of the CDP is much higher than those of the DTDP or HTDP. Consequently, the ultimate pressure of the CDP is the lowest one.