• 한국조리학회지
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• 제24권1호
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• pp.13-23
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• 2018

This study aimed to investigate the characteristics of 3 pre-treatment of mealworm(Tenebrio molitor), and offer basic research data through appropriate pre-treatment method based on the component analysis result. This study was preparing the control group sample No.0(not contain mealworm), and the other sample (Sample No.1,2,3) was using the mealworm prepared in each of the three methods. By using the sample, this study conducted an inspection for component analysis, mineral contents, pH, color value, total amount polyphenols, DPPH radical scavenging activity, reducing power, acceptance test. Each experiments are three times repeated and validated following the one-way ANOVA analysis to verify a significant difference. Acceptance test conducted by 50 consumers indicate consumption decision for sunsik. using the seven point scale, assessment for appearance, flavor, taste, texture, overall acceptance. The research findings showed that sample containing sauted mealworm(SE2) is higher preference and significant in antioxidant activity(total amount polyphenols, DPPH radical scavenging activity, reducing power). Therefore, it is better to use sauted. The result of this study suggest that sauted mealworm is good ingredient for consumer acceptability and functionality of sunsik. According to results of the study, it is suggested to make better use of food, and provide food developer with meaningful date for market targeting. In addition, this study also provides the information for improving awareness of edible insect.

• 한국정보시스템학회지:정보시스템연구
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• 제21권3호
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• pp.187-214
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• 2012

Supply chain management(SCM) helps firms in integrating their business by collaborating with other value chain partners to meet the unpredictable demand of the end user. Agility is the fundamental characteristic of a supply chain needed for survival in turbulent and volatile markets, which are becoming norms as product life cycles shorten and environmental forces create additional uncertainty resulting in higher risk in the supply chain management. Literature reviews reveals various factors that could affect the agility. The objective of this study is to derive interdependence, partnership, quality of information, joint problem solving, modelize the mutual influential relationship between them, and look into the influential relationship influencing the agility. To test the proposed model, we used a data set generated from survey. Date analysis was conducted using 122 respondents. We used structural equation model (SEM) implemented in partial least square(PLS). The results of this study can be summarized as follows. Interdependence had a significant impact on partnership. Partnership had a significant impact on quality of information and joint problem solving. Quality of information had a significant impact on joint problem solving. Quality of information and joint problem solving had a significant impact on agility. This study diagnoses that Inter-organizational relationship characteristics are important for supply chain agility. Inter-organizational relationship characteristics are considered as an essential factor for supply chain agility.

• 센서학회지
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• 제26권4호
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• pp.259-265
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• 2017

Magnetometer calibration must be performed before the use of three-axis magnetometers to ensure the accuracy of orientation estimation. Recently, one of the most popular calibration approaches is the ellipsoid fitting technique due to its high performance in calibration. To date, in fact, performances of the existing ellipsoid fitting methods have been evaluated with full range rotation data. However, in case of the calibration of magnetometers attached to vehicles, ships, and planes, it is very difficult to collect the full range rotation data since their allowable ranges in terms of roll and pitch are limited to small. This constraint may result in serious performance degradation of some ellipsoid fitting algorithms. Therefore, to be practical, this paper proposes a weighted least square-based magnetometer calibration method that is robust in roll-pitch limited conditions. Furthermore, the proposed method is a linear approach and thus is free from the well-known initial value issue in nonlinear approaches. Experimental results show the superiority of the proposed method to other ellipsoid-fitting calibration methods.

• 대한한방소아과학회지
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• 제14권2호
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• pp.33-46
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• 2000

It has long been known that Jahage(紫河車) extracts of Placenta hominis are effective for immunological and vascular diseases in human body and thus, was used a major constituent of traditional oriental medicines. From full-term human placenta, we have purified a new type anticoagulant protein, PP27, using different chromatographic techniques of a phenyl TSK gel 650M column, DEAE, HA and Mono-Q columns. PP27 showed single band on SDS-PAGE with a molecular mass (Mr) of 27 kDa under denaturing conditions and a calibrated Sepharose 4B column chromatography indicated a molecular mass of 23 kDa, indicating that the value is similar to those of other PP4 enzyme reported to date. Isoelectric point of PP27 was p15.2. The protein was found to inhibit the coagulation time in a concentration-dependent manner. PP27 was acted as a vascular anticoagulant of annexin type, inhibits the blood clotting process by binding of the essential lipids in a reaction which is dependent on $Ca2^+$ ions. In the presence of $Ca2^+$ ions, PP27 combines with platelet membranes neutralizing their procoagulant effect. Coagulation triggered by the addition of thromboplastin/ lipid- mixtures is extinguished by PP27.

• 천문학회보
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• 제40권1호
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• pp.46.4-47
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• 2015

Carnegie Hubble Program II (hereafter CHP II) is a large Hubble Space Telescope (HST) observing campaign in the cycle 22 composed of a total of 184 orbits (132 primes + 52 parallels), which aims to measure H0 directly with an unprecedented accuracy. Unlike our previous efforts in CHP I which used Cepheids as a yardstick, CHP II takes the Population II (Pop II) distance indicators such as RR Lyraes and tip of the red giant branch stars (TRGBs) to set up a new calibration to Type Ia supernovae (SN Ia) distance. The Pop II distance scales have two immediate advantages over the classical Cepheid method: 1) The period-luminosity relation of the RR Lyrae has a scatter that is a factor of 2 smaller; 2) The RR Lyrae/TRGB distance scale can be applied to both elliptical and spiral galaxies. This will provide a great systematic benefit by ultimately allowing us to double the number of SN Ia distances based on geometry. By taking advantage of this Pop II route, we expect to measure H0 value to 3 % of error which will be the highest accuracy H0 measurement to date using the "Distance Ladder" method. In this talk I will present a brief background/overview on the CHP II, observations/data acquisition status, and ongoing research progress/preliminary results.

• Nuclear Engineering and Technology
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• 제36권2호
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• pp.121-126
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• 2004

3-PM liquid scintillation counting using the geometry-efficiency variation technique has been applied to the activity measurement of $^{204}T1$, which decays to $^{204}Hg\;and\;^{204}Pb\;by\;{\beta}^-$ and E.C., respectively. The TDCR values K have been derived over a wide range, 0.78 < K < 0.97, by displacing the detectors up to 50 mm away from an unquenched liquid scintillation sample $^{204}Tl$. The derived plots of the logic sums of double coincidences $N_D(K)$ very K vary linearly in the observed regions. The fractions of losses due to electron capture decay have been taken into account by employing a PENELOPE Monte Carlo simulation. The calibrated activity is 102.3 kBq at a reference date of July 1st, 2002 (UT) with a combined uncertainty of $0.63\%$. This is consistent with the value determined by means of the CIEMAT/NIST method at KRISS.

• 생물환경조절학회지
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• 제27권2호
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• pp.180-184
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• 2018

본 연구는 큰다닥냉이 어린잎 채소의 MA저장 중 OTR 필름 종류가 품질에 미치는 영향을 알아보고자 수행하였다. 플라스틱하우스에서 2주간 재배한 초장 10cm 내외의 큰다닥냉이 어린잎를 산소투과도가 1,300cc, 10,000cc, 20,000cc, 40,000cc, 그리고 $80,000cc{\cdot}m^{-2}{\cdot}day^{-1}{\cdot}atm^{-1}$인 OTR필름과 대조구인 미세천공필름($\varnothing$ 0.06cm, $36ea/100cm^2$)을 사용하여 포장하여 $8^{\circ}C$에서 10일간 저장하였다. 저장 종료일 모든 OTR필름 처리구의 생체중 감소율은 0.5%를 보였고, 대조구인 미세천공 필름은 1.3%의 감소를 나타냈다. 포장 내 산소농도는 20,000cc, 40,000cc, 그리고 80,000cc OTR필름 처리구에서 저장중 18%이상의 농도을 유지하였고, 1,300cc OTR필름 처리구는 저장 종료일 11%의 농도로 가장 낮게 유지되었다. 이산화탄소 농도는 1,300cc와 10,000cc OTR필름 처리구에서 각각 4.5%와 3.4%의 수준으로 꾸준히 증가하였고, 다른 OTR필름 처리구는 1% 미만의 농도를 유지하였다. 포장 내 에틸렌 농도는 저장 기간 중 1,300cc OTR 필름 처리구에서 $3-5{\mu}L{\cdot}L^{-1}$로 가장 높게 유지되었다. 1,300cc OTR필름 처리구에서 가장 낮은 이취와 가장 높은 외관상 품질을 보였는데, 대조구를 포함한 다른 처리구들은 황화현상으로 인한 품질저하로 상품성을 상실하였다. 저장 종료일에 조사한 엽록소 함량과 Hue angle값은 1,300cc OTR필름 처리구에서 가장 높았으며, 황색도를 나타내는 $b^*$값은 1,300cc OTR필름 처리구에서 가장 낮았다. 따라서 MA저장 중 황화와 이취 억제효과가 우수한 1,300cc OTR필름이 큰다닥냉이 어린잎 채소의 포장에 적합하다고 판단된다.

• 천문학논총
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• 제14권2호
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• pp.91-102
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• 1999

We have made intensive calculations on the maximum relative sunspot number and the date of solar maximum of 23rd solar cycle, by using the statistical and precursor methods to predict solar activity cycle. According to our results of solar data processing by statistical method, solar maximum comes at between February and July of 2000 year and at that time, the smoothed sunspot number will reach to $114.3\~122.8$. while precursor method gives rather dispersed value of $118\~17$ maximum sunspot number. It is found that prediction by statistical method using smoothed relative sunspot number is more accurate than by any method to use any data of 10.7cm radio fluxes and geomagnetic aa, Ap indexes, from the full analysis of solar cycle pattern of these data. In fact, current ascending pattern of 23rd solar cycle supports positively our predicted values. Predicted results by precursor method for $Ap_{avg},\;aa_{31-36}$ indexes show similar values to those by statistical method. Therefore, these indexes can be used as new precursors for the prediction of 23rd or next solar cycle.

• 보건행정학회지
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• 제26권1호
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• pp.71-78
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• 2016

The value of using health insurance claim database is continuously rising in healthcare research. In studies where comorbidities act as a confounder, comorbidity adjustment holds importance. Yet researchers are faced with a myriad of options without sufficient information on how to appropriately adjust comorbidity. The purpose of this study is to assist in selecting an appropriate index, look back period, and data range for comorbidity adjustment. No consensus has been formed regarding the appropriate index, look back period and data range in comorbidity adjustment. This study recommends the Charlson comorbidity index be selected when predicting the outcome such as mortality, and the Elixhauser's comorbidity measures be selected when analyzing the relations between various comorbidities and outcomes. A longer look back period and inclusion of all diagnoses of both inpatient and outpatient data led to increased prevalence of comorbidities, but contributed little to model performance. Limited data range, such as the inclusion of primary diagnoses only, may complement limitations of the health insurance claim database, but could miss important comorbidities. This study suggests that all diagnoses of both inpatients and outpatients data, excluding rule-out diagnosis, be observed for at least 1 year look back period prior to the index date. The comorbidity index, look back period, and data range must be considered for comorbidity adjustment. To provide better guidance to researchers, follow-up studies should be conducted using the three factors based on specific diseases and surgeries.

• Journal of Advanced Marine Engineering and Technology
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• 제25권3호
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• pp.471-486
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• 2001

The principal trends in the course of emission control legislation are reviewed in this paper. In order to keep such a regulation, moreover, an inquiry ito the concrete technical possibility is conducted through review articles, Also, the composition of exhaust gases emitted from a marine diesel engine are investigated as several samples and the measures that can satisfy the value of regulation are handled with laying stress on the control methods discussed to date. It was concluded that various combined systems can be made to reduce NOx emissions without deteriorating substantially navigation costs since many technologies for reducing NOx emissions are being developed. All heat engines suffer from SOx emissions. There are two methods for reducing SOx emissions: desulfurization from exhaust gas and removal of sulfur composition from fuel oil. However it is necessary to watch the development of these technologies to evaluate which method is more favorable. Heat engines have a big problem in the regulation of environmental pollution from exhaust emissions. In the near future, however, diesel engines may be superior to other heat engines, owing to the high thermal efficiency, although the sales of individual models in dises engines may be prosperous and declining.