• The Journal of Korean Academy of Prosthodontics
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• v.58 no.1
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• pp.7-13
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• 2020

Purpose: This study was to evaluate marginal and internal discrepancy of 3-unit fixed dental prostheses (FDP) fabricated by subtractive manufacturing and additive manufacturing. Materials and methods: 3-unit bridge abutments without the maxillary left second premolar were prepared (reference model) and the reference model scan data was obtained using an intraoral scanner. 3-unit fixed dental prostheses were fabricated in the following three ways: Milled 3-unit FDP (MIL), digital light processing (DLP) 3D printed 3-unit FDP (D3P), stereolithography apparatus (SLA) 3D printed 3-unit FDP (S3P). To evaluate the marginal/internal discrepancy and precision of the prosthesis, scan data were superimposed by the triple-scan protocol and the combinations calculator, respectively. Quantitative and qualitative analysis was performed using root mean square (RMS) value and color difference map in 3D analysis program (Geomagic control X). Statistical analysis was performed using the Kruskal-Wallis test (α=.05), MannWhitney U test and Bonferroni correction (α=.05/3=.017). Results: The marginal discrepancy of S3P group was superior to MIL and D3P groups, and MIL and D3P groups were similar. The D3P and S3P groups showed better internal discrepancy than the MIL group, and there was no significant difference between the D3P and S3P groups. The precision was excellent in the order of MIL, S3P, and D3P groups. Conclusion: Within the limitation of this study, the 3-unit fixed dental prostheses fabricated by additive manufacturing showed better marginal and internal discrepancy than the those of fabricated by subtractive manufacturing, but the precision was poor.

• Journal of Chest Surgery
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• v.24 no.7
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• pp.669-673
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• 1991

Fructose-l, 6-diphosphate as an additive to cold crystalloid cardioplegia [St. Thomas sol.] was studied prospectively in 60 patients undergoing open heart surgery from January 1, 1991, to June 30, 1991. Thirty patients received cardioplegia with FDP[group I ] and 30 patients received cardioplegia without FDP [group II ]. There were no differences between two groups pre-operatively with regard to age, heart disease, cross-clamp time, cardiac enzymes, or hemodynamic measurements [p>0.05]. Cardiopulmonary bypass was established using ascending aorta and vena cava cannulation employing moderate systemic hypothermia [30oC nasopharyngeal temperature] and hemodilution All patients received cardioplegia through the aortic root at aortic root pressure of 80mm Hg. The composition of the cardioplegic solution and its delivery were identical in both groups except for the addition of FDP[1.5 mg/mL] in group I. The cardioplegic infusate consisted of St. Thomas Hospital solution. The initial dose was infused through the aortic root. Topical myocardial cooling with saline slush was employed in all patients. Recorded operative data were cardiopulmonary bypass and cross-clamp times, amount of cardioplegic infusate. Blood samples for assessment of lactate dehydrogenase [LDH], creatine kinase [CK] and transaminases [GOT, GPT] were obtained before and at 1,2,3,7th postoperative period. Better myocardial protection effect was noted in group I than group II with respect to the % change of cardiac enzymes, although the differences were not significant. We conclude that FDP is a safe additive to crystalloid cardioplegia and may be beneficial in open heart surgery patients.

• Proceedings of the Korea Contents Association Conference
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• 2004.11a
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• pp.333-338
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• 2004

Today CCTV can be come across easily in public institutions, banks and etc. These CCTV plays very important roles for preventing many kinds of crimes and resolving those crime affairs. But in the case of recording a image of a specific person far from the CCTV, the original image needs to be enlarged and recovered in order to identify the person more obviously. The interpolation is usually used for the enlargement and recovery of the image. This interpolation has a certain limitation. As the magnification of enlargement is getting bigger, the quality of the original image can be worse than before. This paper uses FDP(Face Definition Parameter) of MPEG-4 SNHC FBA group and introduces a new algorithm that the face outline of a face image using Vector Descriptor based on the FDP makes possible better image recovery than the known methods until now.

• Korean Journal of Agricultural Science
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• v.49 no.3
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• pp.397-405
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• 2022

Castor oil cake is widely used as a raw material for organic fertilizers (OF) in Korea. Compared to other fertilizer raw materials, it is highly dependent on imports. In terms of replacing raw materials, dehydrated food waste powder (FDP) and castor oil cake have similar nutritional content, and if 30% is replaced, about 20% of the raw material cost can be saved. However, few studies on the effects on crop growth and soil properties when organic fertilizer and dry food waste powder are mixed and applied to the soil have been reported. The effects of an organic fertilizer made by mixing the commercial available organic fertilizer with dehydrated food waste (OF + FDP) on soil properties and the growth of two types of leafy vegetables (lettuce and young radish) were evaluated and compared with the performance of OF. The fresh weights of lettuce and young radish were the highest with OF amendment and stood at 114.3 and 119.0 g·plant^-1, respectively. These were followed by OF + FDP amendment, which produced 103.1 and 109.6 g·plant^-1, respectively. Compared to the control, OF and OF + FDP increased the lettuce fresh weights by about 69% and 52%, respectively, while the fresh weights of the radish were increased by about 223% and 207%, respectively. The soil pH, EC, total carbon content, and organic matter content in OF and OF + FDP increased. The mixture of dehydrated food waste powder and organic fertilizers is expected to improve soil quality and facilitate stable production of crops and contribute to the substitution of imported organic fertilizer raw materials.

• Journal of Society of Preventive Korean Medicine
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• v.2 no.1
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• pp.165-173
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• 1998

In order to investigate the effect of the Herba Segesbeckiae on the thrombosis induced by endotoxin in rats. The rats were treated with solid extract of Herba Siegesbeckiae 41.9mg /200g(Sample) which were administered orally. And the thrombosis was induced by injecting endotoxin in the caudal vein rats. And then the number of platelets, concentration of fibrinogen, prothrombin time and FDP(fibrinogen degradation product) were measured. The results were as follows; 1. Platelet was increased significantly in sample group compared with control group. 2. Prothrombin time was shortened significantly in sample group compared with control group. 3. Fibrinogen was increased significantly in sample group compared with control group. 4. FDP was decreased significantly in sample group compared with control group. According to the above results, Herba Siegesbeckiae had significant effects on number of Platelets, Prothrombin time, Fibrinogen and FDP. therefore, it is considered that Herba Siegesbeckiae can be applied to diseases related to thrombosis.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2011.10a
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• pp.691-694
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• 2011

본 논문은 항공관제 시스템을 구성하는 핵심 시스템인 비행자료처리시스템(FDP: Flight Data Processing System)에서 적용되고 있는 비행계획 포스팅 기법을 효율적으로 관리하기 위한 자동 포스팅 메커니즘에 대해 제안하고 있다. 본 논문에서 제안하는 방식은 관제사의 항공기 관제중에 가장 빈번하고도 중요하게 활용되는 정보인 비행계획 포스팅 정보를 FDP에서 처리할 때 자동 포스팅 방식을 적용하여 관제사와 항공관제 시스템과의 연결을 최소화하고 이를 통해 효율적이고 집중적인 관제가 지속될 수 있도록 지원한다. 또한 FDP 시스템에서 포스팅을 관리하기 위한 프로세서를 분리하여 존재시킴으로서, 전자 스트립 뿐만 아니라 종이 스트립까지 지원하는 정책 설계가 가능하며 정책 수정시 반영이 용이하다는 장점이 존재한다.

• Food Science and Preservation
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• v.24 no.8
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• pp.1079-1087
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• 2017

The study attempted to investigate the variation in the quality of the yellow paprika according to the duration of the yellow paprika and to use the basic materials for the development of various processed foods. The moisture content of dried paprika was 11.19% on the freeze-drying paprika (FD), and the amount of water was increased by 18.19% on the 15th day of the storage cycle. The pH has been significantly changed depending on the length of the storage period, and the sugar content in FD. The acidity contents was increased during storage in all dried paprikas showed the highest acidity, but hot air-drying paprika(HAD) was lowest in the acidity. The L value was decreased during storage period from the paprika outside and inside. The a value was not significantly dependent on the length of storage period from paprika outside and inside, and the b value increased the during storage period from paprika outside and inside. The texture of strongness, hardness, chewiness, and brittleness were decreased during storage period from all drying paprika except for FD, showing the increasing trend in cohesiveness, springiness, chewiness, and brittleness. The total aerobes changes was the lowest in HAD.

• Proceedings of the KOSOMBE Conference
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• v.1997 no.11
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• pp.482-483
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• 1997

Antifibrinolytic effect of lumbrokinase in mice, in vivo, was studied. Liquid phase lumbrokinse from Lumbricus rubellus was purified by column chromatography method. Lumbrokinase was orally inserted to mice. Although oral dosage of lumbrokinase, to investigate whether lumbrokinase in mice causes antifibrinolytic effect, we have concentration of lumbrokinase varied, and detection of antifibrinolytic effect was carried out using a FDP (fibrin degradation product) test and euglobulin fibrinolytic activity test. FDP test and euglobulin fibrinolytic activity test were compared the data of PBS ingestion. control with lumbrokinase ingestion. As a result, FDP was increased in 7.8mg, 26mg lumbrokinase concentrations after 25 hours succeeding oral prescription of lumbrokinase, and decreased after 49 hours, but 7.8mg lumbrokinase ingestion more increased than 26mg. Also, FDP of PBS ingestion control and 1.3mg lumbrokinase ingestion were not been observed nothing. Euglobulin fibrinolytic activity of PBS ingestion control and 1.3mg lumbrokinase ingestion were not been observed any clear zone after 8, 25, 48 hours, and 7.8mg and 26mg were observed the most largest clear zone after 25 hours and decreased after 48 hours. However, antifibrinolytic effect of oral prescription of lumbrokinase in mice was observed. Now we need to determine an efficient amount of lumbrokinase for antifibrinolytic effect.

• Journal of the Korea Safety Management & Science
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• v.14 no.2
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• pp.41-48
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• 2012

수공구 사용시 과도한 힘은 작업성 근골격계 질환을 일으킬 수 있는 주요 원인중 하나이다. 이와 관련하여, 수공구 파지시 인체 내부에 부과되는 근력과 외적으로 작용된 힘 간의 비율을 이해하는 것이 중요하며, 이는 근육에 부과되는 과도한 힘을 최소화 시키고, 작업에 필요한 힘의 효율성을 극대화 시키는데 필수적이라 할 수 있다. 이러한 비율과 관련하여 많은 연구가 되어 왔으나, 대부분 수리적 인체역학적 모델과 같은 간접적 추정 방법에 의거하고 있는 실정이다. 이러한 인체역학적 모델을 검증하고 개선하기 위하여 해부용 팔 (cadaver)을 활용한 직접적인 근력과 악력 측정이 필수적이다. 본 연구에서는 이러한 해부용 팔을 이용하여 상지 굴근(hand flexor)을 자동으로 제어하고 근력과 함께 악력을 측정할 수 있는 Hand Motion Simulator를 개발하고, 이를 통하여 다양한 사이즈의 손잡이 파지시 요구되는 근력과 외적으로 적용된 악력을 비교함으로써 수공구 손잡이 사이즈에 따른 근력의 효율성에 대하여 측정을 해 보았다. 또한, 적용된 굴근 (FDP & FDS) 간의 힘 비율에 따른 파지법의 차이를 조사해 보았다. 내부에 주어진 근력은 외부로 작용된 악력보다 5.3배 높은 부하가 작용하였으며 이러한 수공구 손잡이 파지시 힘의 효율성 역시 FDP 와 FDS 간의 비율이 3:2 였을 때, 그리고 손잡이 크기가 작을수록 높은 결과를 보였다. 반대로 손잡이의 크기가 커질수록 힘의 효율성은 저하되었다. 또한, 손가락 관절 각도의 경우 FDP와 FDS간의 비율에 따라 상이한 자세를 나타내었다. FDP 굴근의 비율이 높을 경우 손가락 끝마디 관절 (DIP) 의 굴곡을 보였으며, FDS 굴근 비율이 높을 경우 손가락 두 번째 관절(PIP)의 굴곡을 보였다. 본 연구를 통한 결과는 추후 상지작업자에 대한 근골격계 질환 예방 기준안 마련 및 수공구 설계를 위한 기초자료로 활용이 가능할 것으로 보인다.

• KSBB Journal
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• v.26 no.5
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• pp.393-399
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• 2011

Bacillus subtilis natto producing high level of a fibrinolytic enzyme was selected and Ultra Nattokinase$^{(R)}$ was manufactured by fermentation and purification. It was performed the evaluation of the antithrombotic effect of Ultra Nattokinase$^{(R)}$ (20,000 FU/g) with rat blood plasma. The maximum aggregation (inhibition ratio) was 71% (0%), 69% (2.8%), 62% (12.7%), 16% (77.5%) and 9% (87.3%), respectively, in the order of 0, 5, 10, 50 and 100 mg/mL of Ultra Nattokinase$^{(R)}$ solutions. Ultra Nattokinase$^{(R)}$ had antithrombotic effect, which was associated with the suppression of collagen-induced platelet aggregation. Ultra Nattokinase$^{(R)}$ in the topic of the FDP (fibrinogen degradation products) in blood coagulation tests showed a significant increasing trend. And based on the daily record of meal 39 people of ITT (what ?) group consisted with 19 people of NP (what ?) group and 20 people of PN (what ?) group except four people, two people who took vitamin K affecting the experiment and two people who took alcohol, finding to be taken Ultra Nattokinase$^{(R)}$ showed an increase in the FDP value after four weeks. In addition, FDP value of 41 people of ITT group except two people having metabolic syndrome was increased by Ultra Nattokinase$^{(R)}$.