• 한국방재안전학회논문집
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• 제6권1호
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• pp.87-91
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• 2013

사고대비물질 취급자가 수립 제출하는 비상조치계획에 대한 현장이행 기준과 검토 절차를 마련하기 위해 공정안전보고서, 안전성향상계획서에 대한 심사내용과 기준 등을 조사하였다. 각각의 안전관리제도 운영 담당자의 의견과 검토과정에서 예상되는 문제점을 확인하였다. 현장이행과 검토에 대한 기준은 담당자의 업무수행 능력을 고려하여 고도의 전문성을 요구하기 보다는 보고서에 반드시 포함되어야 할 항목과 내용이 적정하게 작성되었는지 여부를 확인할 수 있는 내용위주로 제시하였다.

• 펄프종이기술
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• 제40권2호
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• pp.23-28
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• 2008

As well as crop cultivation, they could not avoid automatizing and using more environmental friendly process in cultivation of fruit. And also, the consumer ask more safe fruit which is produced with more clean method. This is why the usage of aid materials for fruit cultivation like as fruiting bags are increasing. Practical utilization of wax emulsion treated water repelling fruiting bags are developed continuously and it's properties is compared properties of nomal fruiting bags. The water repelling process was developed with wax emulsion coating. After the experiment of wax emulsion preparation from paraffin and DEA and/or OA in Lab. scale, the wax emulsion was manufactured on pilot scale. The wax emulsion coated paper was prepared in mill scale coater. The water repellency and properties of emulsion coated fruiting bags were evaluated and compared with that of current fruiting bags.

• International journal of advanced smart convergence
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• 제9권2호
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• pp.90-104
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• 2020

It is difficult for non-experts to build machine learning (ML) models at the level that satisfies their needs. Deep learning models are even more challenging because it is unclear how to improve the model, and a trial-and-error approach is not feasible since training these models are time-consuming. To assist these novice users, we examined how interactive and explainable feedback while training a deep learning network can contribute to model performance and users' satisfaction, focusing on the data preparation process. We conducted a user study with 31 participants without expertise, where they were asked to improve the accuracy of a deep learning model, varying feedback conditions. While no significant performance gain was observed, we identified potential barriers during the process and found that interactive and explainable feedback provide complementary benefits for improving users' understanding of ML. We conclude with implications for designing an interface for building ML models for novice users.

• Journal of Nutrition and Health
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• 제37권8호
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• pp.722-731
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• 2004

The objective of this study was to evaluate the microbiological quality of non-heat-processed foods for implementation of a HACCP (Hazard Analysis and Critical Control Point) system in day-care center foodservice operations. The evaluating points were microbial assessment of foods, utensils, and employee's hands during preparation, cooking, and serving. The temperature of non-heated food being served was also measured. Microbiological quality was assessed using 3 M Petrifilm/syp TM/ to measure total plate count and coliforms for food and utensils and Staphylococcus aureus for hands in five Gumi day-care centers. Results showed low microbiological quality of non-heated foods. This was probably due to contaminated raw ingredients and cross-contamination that occurred during preparation and cooking (e.g., unsatisfactory washing and disinfection of raw materials and utensils). These results suggest that it is essential to educate employees on good personal hygiene (hand washing) , prevention of cross-contamination through use of properly washed and sanitized utensils, and proper washing and disinfection of raw vegetables. Establishing Sanitation Standard Operating Procedures (SSOPs) are an essential part of any RACCP system in day-care center foodservice operations.

• 한국정보통신학회:학술대회논문집
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• 한국해양정보통신학회 2003년도 추계종합학술대회
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• pp.957-962
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• 2003

The preparation of $Al_2$O$_3$-SiO$_2$ thin films from less than one micron to several tens of microns in thickness had been prepared from metal alkoxide sols. Two methods, dip-withdrawal and electrophoretic deposition, were employed for thin films and sheets formation. The requirements to be satisfied by the solution for preparing uniform and strong films and by the factors affecting thickness and other properties of the films were examined. for the preparation of thin, continuous $Al_2$O$_3$-SiO$_2$ films, therefore, metal-organic-derived precursor solutions contained Si and Al in a chemically polymerized form has been developed and produced in a clear liquid state. In the process of applying to substrates, this liquid left a transparent, continuous film that could be converted to crystalline $Al_2$O$_3$-SiO$_2$ upon heating to 100$0^{\circ}C$. And, a significant change of the film density took place in the crystallization process, thus leading to the strict requirements as to the film thickness, which could survive crystallization.

• 한국식품과학회지
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• 제2권2호
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• pp.1-7
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• 1970

1) 고구마의 경제적 활용과 이유식품의 개발을 목적을 고구마 대두분 및 기타 영양소를 사용하여 단백함량이 20%되는 이유식품을 드럼건조법에 의하여 제조하는 방법을 설정하였다. 2) 이 제품의 단백효율(PER)은 2.63 으로서 고구마 대신 옥수수전분을 사용한 제품의 PER(3.30)보다 낮았는데, 이는 드럼건조중 가용태 라이신의 파괴에 의함을 알았다. 3) 본 이유식품의 전체영양가 (사료효율, 체성분의 조성, 단백질보유율)는 우유식품이나 고구마 대신 옥수수전분을 사용한 이유식품과 비슷하였다.

• 한국세라믹학회지
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• 제45권11호
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• pp.725-733
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• 2008

In this study the preparation method of the spherical ADU droplets, intermediate compound of a HTGR nuclear fuel, was detailed-reviewed and then, the characteristics on an ageing and a washing steps among the wet process and the thermal treatment process on the died-ADU${\rightarrow}UO_3$ conversion with the high temperature furnaces were studied. The key parameters for spherical droplets forming are a precise control of feed rate and a suitable viscosity value selection of a broth solution. Also, a harmony of vibrating frequency and amplitude of a vibration dropping system are important factor. In our case, an uranium concentration is $0.5{\sim}0.7mol/l$, viscosity is $50{\sim}80$ centi-Poise, vibration frequency is about 100Hz. In thermal treatment for no crack spherical $UO_3$ particle, the heating rate in the calcination must be operated below $2^{\circ}C$/min, in air atmosphere.

• 한국세라믹학회지
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• 제41권11호
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• pp.804-811
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• 2004

본 연구는 colemanite원광을 출발원료로 하여 붕산을 추출하는 공정에서 마이크로파 적용에 대한 연구로, 황산을 첨가하고 가열하여 colemanite의 칼슘 성분을 황산칼슘으로 분리하여 내고, 액상에 존재하는 붕소 성분은 붕산으로 재결정화 하여 제조하였다 Colemanite에 황산을 첨가해 가열하는 공정에 마이크로파를 적용하면, 일반 가열원을 사용하였을 때와 비교하여 적은 양의 황산을 사용하여 추출이 가능하고, 가열시간을 단축하는 것이 가능하였다. 생성된 붕산의 순도는 일반 가열원을 사용하였을 때와 동등한 수준이고 열 특성 또한 동일하였으나, 입자의 크기는 작아졌다.

• 한국자원식물학회:학술대회논문집
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• 한국자원식물학회 2018년도 춘계학술발표회
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• pp.71-71
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• 2018

The aim of this study was to prepare a new functional food with enriched bioactive compound by the combination of Tartary buckwheat and bean flour mixes. Two types of bean such as: black bean and white bean with the ratio of 5, 10, 15 % were used to develope a food formulation. The solid formulation of functional food was prepared by the hot melt extrusion process (HME) at the temperature of 60, 90, $120^{\circ}C$. Total phenolic content (TPC), total flavonoid (TF) and DPPH were analysed of the prepared food by the use of spectrophotometer. Results demonstrated that TPC (254 mg/g), TF (18.22 mg/g) and DPPH (88%) were significanlty increased in the receipe of 10% black bean and 90% Tartary buckwheat mixes among the formulation at $90^{\circ}C$. As therefore, it is concluded that the optimum ratio of bean and Tartary buckwheat flour mixes should be considerd for the preparation of high quality functional food.

• 약학회지
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• 제49권1호
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• pp.1-5
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• 2005

Near-infrared (NIR) spectroscopy has been widely applied in various field, since it is nondestructive and no sample preparation is required. In this paper, NIR spectroscopy was used for the determination of naproxen in a commercial pharmaceutical preparation. NIR spectroscopy was used to determine the content of naproxen in intact naproxen tablets containing 250 mg ($65.8\%$ nominal concentration) by collecting NIR spectra in the range of $1100{\sim}1750nm$. The laboratory-made samples had $46.1{\sim}85.5\%$ nominal naproxen concentration. The measurements were made by reflection using a fiber-optic probe and calibration was carried out by partial least square regression (PLSR). Model validation was performed by randomly splitting the data set into calibration and validation data set (63 samples as a calibration data set and 42 samples as a validation data set). The developed NIR calibration gave results comparable to the known values of tablets in a laboratorial manufacturing process with standard error of calibration (SEC) and standard error of prediction (SEP) of $1.06\%\;and\;1.04\%$, respectively. The NIR method showed good accuracy and repeatability. NIR spectroscopic determination in intact tablets allowed the potential use of real time monitoring for a running production process.