• Computational Structural Engineering
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• v.5 no.2
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• pp.37-42
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• 1992

크레이 리서치(Cray Research Inc.)는 1972년 미국의 Seymour Cary가 슈퍼컴퓨터의 설계, 제작, 판매 및 기술지원을 목표로 Wisconsin주 Chippew Fall에 설립한 회사로, 혀재까지 세계 각지에서 300여 시스템을 공급한 슈퍼컴퓨터의 선두주자이다. 슈퍼컴퓨터의 역사를 이야기 할 때 크레이의 역사를 빼놓을 수 없을 정도로, 크레이 리서치는 1976년 세계최초의 슈퍼컴퓨터인 CRAY-1 시스템을 발표한 이래 끊임없는 연구노력을 경주하여, 1982년에 CRAY X-MP 시스템, 1985년에 CARY-2 시스템, 1988년에 CRAY Y-MP 시스템, 1992년에 CRAY C-90 시스템을 발표하였으며, 이들 시스템들은 각각 당 시대에 세계 최고의 성능을 지닌 슈퍼컴퓨터로 공인되어져 왔다.

• Computational Structural Engineering
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• v.5 no.2
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• pp.18-27
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• 1992

88년 9월중에 한국과학기술연구원 시스템공학연구소가 당시의 슈퍼컴퓨터 중 최상위 성능을 가진 Cray-2S(4 CPU, 1GB)를 설치함에 따라 국내에도 슈퍼컴퓨터 시대가 열리게 되었으며, 90년 10월에 산업계에서는 최초로 기아자동차에서 Cray Y/MP(1CPU)를 설치한 이래 최근에 국방과학연구소, 삼성그룹에서도 Cray Y/MP계열의 슈퍼컴퓨터를 설치하여 과학기술 계산 및 공학해석에 폭넓게 활용할 전망이다. 따라서 본 고에서는 슈퍼컴퓨터의 정의 및 분류, 특징과 보급현황에 대하여 알아보고 슈퍼컴퓨터 및 병렬처리기술을 이용한 유한요소해석에 관하여 간략히 기술하고저 한다.

• Asian-Australasian Journal of Animal Sciences
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• v.16 no.10
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• pp.1475-1481
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• 2003

The aim of this paper was to use the Cornell Net Carbohydrate and Protein System (CNCPS), that reports diet energy and protein value and animal requirements, as net energy for lactation ($NE_1$) and metabolizable protein (MP) respectively, to evaluate some rations for lactating Italian Mediterranean buffaloes. The investigation was carried out on six farms in the province of Caserta (southern Italy), where the milk production was controlled four times monthly on 10 animals (changing every time) chosen at different lactation days (5 categories): <2 months (A), 2-4 months (B), 4-6 months (C), 6-8 months (D), >8 months (E). Milk fat and protein were determined. Diet $NE_1$ and MP were estimated with the CPM-Dairy program (1998) using diet component chemical characteristics; then energy and protein intakes were estimated. $NE_1$ and MP requirements were estimated with two methods: 1) using CPM-Dairy that considers produced milk, fat and protein content, lactation phase and body condition score as main factors; 2) by applying the theory that to produce 1 kg of energy corrected milk, the buffalo needs 3.56 MJ of $NE_1$ and the efficiency to convert the absorbed aminoacids into milk protein is lower than cow (CNCPS). As regards energy, with method 1 the requirements were satisfactory starting from category A (4 out of 6 farms) and category B (5/6 farms); however, a surplus resulted for category E (5/6 farms). With method 2 a deficit in category A (5/6 farms) and B (3/6 farms) was observed, while the energy requirements were satisfied for all categories except E, where on only one buffalo farm had a surplus of energy intake. As regards protein, with method 1 the requirements were substantially satisfied for all the categories except E (3/6 farms); with method 2 the MP trend was much less favourable than with method 1. Indeed, a protein deficit was observed for all animals in categories A and B (5/6 farms). Moreover, on one farm the protein intake never satisfied animal requirements. In our experimental conditions, the use of the CNCPS to characterise diets for lactating buffalo and to calculate their requirements led to satisfactory results. By contrast, we cannot say the same for method 2, which applies a lower use efficiency of NE and MP for lactation in buffalo compared to cow.

• 한국생물공학회:학술대회논문집
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• 2003.10a
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• pp.428-433
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• 2003

We measured the effect of wettability of six MPSs for RGP(rigid gas permeable) lens. The used MPSs(multipurpose solutions) were OPTI-SOAK(ALCON), SOLO care hard(CIBA Vision), Total care(ALLERGAN), Simplicity(BOSTON), Wetting and Soaking Sol.(Bausch & Lomb) and Aquas-multi(Saehan). These MPSs keeps hydrophilic property of lens surface and increase the effect of cleaning or increase the effect of preservative effect. To compare with the effect of wettability we followed the way of contact angle measurement which was general way to measure wettability and compared lens which was conducted by each MPS made by different companies. As a control, 0.9% NaCl solution and artificial tears were used. The degree of the effect of wettability was decided by contact angle. It is hydrophilic property nearby $0^{\circ}$ of contact angle and it is closed by hydrophobic property as it increases. The results showed that every lens was nearby hydrophilic property within $25\;^{\circ}-36\;^{\circ}$. Also, it was differed by various factors. The surface tension showed various differences between 19.8 and 31.3 mN/m. In the viscosity, MPSs represented the highest viscosity between $4^{\circ}C$ and $20^{\circ}C$. It was much higher than compared with the viscosity of soft lens MPS. This experiment could be used to grasping the interaction between solutions used to MPS and the natural endowments of lens and to considering the relations of different factors effecting the wettability.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.21 no.6
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• pp.1370-1378
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• 1996

A subjective video quality assessment methods are proposed based on CCIR Rec. 500-5 for an evaluation and testing of compressed video quality and performance of video codec to be designed in accordance with the MPEG-2 MP ML specification which is adapted as a DTV standard for Korea digital DBS. Video sequence compressed in compliance with MPEG-2 MP ML encoding parameterswastested by the proposed video quality evaluation procedure. Test sequence were compressed at the bit rate 6Mbps, 7.5Mbps and 9Mbps, repectively. Test results of the 7.5Mbps bitrate showed a satisfactory picture quality at about 4.0 on the 5.0 absolute scale of ITU-R 500-5.

• Korean Journal of Pharmacognosy
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• v.25 no.3
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• pp.204-208
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• 1994

For the investigation of resources in Codonopsis species, the studies were carried out to evaluate the pharmaco-constituents from the leaves of Codonopsis lanceolata (Campanulaceae) whose roots have been used to antitussive, expectorant, detoxicate, tonic, edible, etc. as a folk medicine in Korea. From the EtOAc and BuOH fractions of MeOH extract, three flavonoid compounds, $luteolin-7-O-{\beta}-_D-glucopyranoside$$(C_{21}H_{20}O_{1i},\;mp\;254{\sim}255^{\circ}$, compound 1), $luteolin-5-O-{\beta}-_D-glucopyranoside$$(C_{21}H_{20}O_{1i},\;mp\;279{\sim}281^{\circ}$, compound 2) and luteolin $(C_{15}H_{10}O_6,\;mp\;327{\sim}330^{\circ}$, compound 3) were isolated and identified on the basis of their physicochemical properties and spectroscopic evidences(UV, IR, $^1H-NMR$, $^{13}C-NMR$, MS etc.) in comparison with authentics respectively.

• The Korean Journal of Food And Nutrition
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• v.29 no.5
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• pp.692-697
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• 2016

This study was aimed to develop a gruel using rice extrudates and to evaluate physicochemical properties of Tarakjuk (milk porridge; MP) prepared with milk (M) and rice powder (RP, control), rice extrudate (RE), or enzyme treated rice extrudates (ETR). Pasting property of ETR was significantly different from those of RP or RE with significantly low peak viscosity, breakdown and setback values in the ETR sample. Viscosity of MP prepared with ETR was also significantly low, as compared to that of control (> 900 cP). The total solids and spreadability of MP with ETR was higher than those with RP or RE. Hunter color values varied significantly depending on enzyme treatment levels in ETR samples with enzyme dose-dependent increase in b-value. Average starch digestibility of ETR sample was higher by 10.2% than that of control sample. DPPH radical scavenging activities of ETR samples were greater than those of RE or RP. These results indicated that ETR could be beneficial for preparing easy-drink and diet food with higher starch digestibility and fluidity, especially for gastric tube-fed patients.

• Korean Journal of Fisheries and Aquatic Sciences
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• v.43 no.5
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• pp.451-456
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• 2010

This study was conducted to evaluate the quality characteristics (proximate composition, fatty acids, amino acids, sensory and textural properties) of whole body and dorsal muscle of olive flounders fed extruded pellets (EP) compared to raw fish-based moist pellets (MP). The olive flounders in this study were reared from 300 g to 1000 g for 7 months by feeding either EP or MP. The fatty acids and total amino acids of the whole body and dorsal muscle of the fish were similar among both groups. The major fatty acids in whole body and dorsal muscle werepalmitic acid and oleic acid. Finally, no significant differences were observed between groups for sensory and textural properties of the muscle. These results suggest that EP could be developed to replace MP without adverse effects on olive flounder quality.

• Journal of Veterinary Clinics
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• v.21 no.4
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• pp.355-362
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• 2004

The purpose of this study was to herd management and control of dairy cows by milk components analysis in Gyeongsangnamdo. Milk components analysis were carried out milk yield (MY), milk fat (MF), milk protein (MP), milk urea nitrogen (MUN) and somatic cell count (SCC) but, milk solid (MS), day of non-pregnant condition (DNPC), and days of primipara (DPRI) involved in report. Dairy farms were divided high group, middle group, low group according to the standard records for milk components. Examination records were divided by farm, parity, year, season and month, the number of samples were 28,957. Feeding management practice and the prediction for the risk possibility of productive disease such as reproductive and metabolic disorders by evaluating fat, protein, solids. Determination of MY, MF, MP, MS were Milkoscan 4,000~5,000 Serier (FOSS Electric Co., Copenhagen, Denmark). Correlation coefficient of milk protein (MP) and milk solid (MS) was ascertain r=0.759. SCC was ascertain 372.8$\pm$11.34 (thousand unit) and DNPC was ascertain 155.3$\pm$5.15 (days) in seven parity.

• Mycobiology
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• v.41 no.4
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• pp.252-255
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• 2013

Fungal pathogens have caused severe damage to the commercial production of Pleurotus eryngii, the king oyster mushroom, by reducing production yield, causing deterioration of commercial value, and shortening shelf-life. Four strains of pathogenic fungi, including Trichoderma koningiopsis DC3, Phomopsis sp. MP4, Mucor circinelloides MP5, and Cladosporium bruhnei MP6, were isolated from the bottle culture of diseased P. eryngii. A species-specific primer set was designed for each fungus from the ITS1-5.8S rDNA-ITS2 sequences. PCR using the ITS primer set yielded a unique DNA band for each fungus without any cross-reaction, proving the validity of our method in detection of mushroom fungal pathogens.