• The Korean Society of Law and Medicine
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• v.7 no.2
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• pp.331-364
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• 2006

Medical supplies have contradiction of efficacy and side effect to the various diseases together. Therefore, people have tried to reduce the side effects and also provide various methods to cope with any damages from the medicine quickly. In the case of accidents by medical supplies, the victim can be protected with advantage by the Product Liability Law rather than the Torts. The limit of Product Liability Law's application depends on whether medical supplies belong to the product or not. According to Product Liability Law, the product should be processed. Therefore, medical supplied should be processed to be the category of product. It can be said that the medical supplies in pharmacy, Chinese medicine, medical herbs, biological medicine manufactures, blood manufactured medicine, cord blood, hemopoietic progenitior cell and stem cell belongs to the manufactured products. The mixture by the prescription of doctor or preparation of pharmacist can be recognized as the product because prescription or preparation is a manufacturing act. Therefore, applying Product Liability Law to manufacturer, doctor or pharmacist would achieve the goal which is protecting the victims extensively.

• Journal of the Korean Society of Safety
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• v.31 no.1
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• pp.66-73
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• 2016

Lyocell fibers were used as a precursor in order to improve yield and strength of cellulose-based precursor while manufacturing activated carbon fiber(ACF). Lyocell fibers as a precursor for the preparation of ACF were surface-modified by reaction with 3-aminopropyltriethoxysilane(APTES) and pre-treated with KOH and H3PO4. Using aforementioned precursor, ACFs were prepared by a series of stabilization, carbonization and activation process at high temperatures. On each process, FT-IR, TGA, UTM and SEM were used to observe fibers' physical properties including structure and porous surfaces. FT-IR results proved that surface modification was achieved during stabilization, carbonization and activation process. TGA results during carbonization process found that surface modified fibers with APTES 0.02 mol(A2) showed higher thermostability, and extended pre-treatment increased yield. Especially, yield was found to have an increase of 10~20 wt% with surface modification during activation process. UTM results showed that tensile strength has the same order of concentration of APTES after surface modification, however, was found to show lower tensile strength than lyocell fibers after stabilization process. SEM results revealed that more homogeneous porosity control could be proceed after modifying the surface for the effective removal of hazardous substances.

• Journal of Korea Technical Association of The Pulp and Paper Industry
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• v.47 no.6
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• pp.57-65
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• 2015

Microfibrillated cellulose (MFC) or Nanofibrillated cellulose (NFC) has been used to reduce the use of raw pulp and to improve paper strength. The problem of MFC preparation is high manufacturing cost. In this study, it was carried out to prepare MFC after enzyme beating and estimated properties of MFC. Endo-D was the best beating efficiency among three type of endo-glucanase. As the grinder pass number increased, the viscosity and the fines of MFC suspension increased while the crystallinity and the porosity of MFC sheet decreased. Also enzyme beating MFC was higher value in the crystallinity and lower value in the viscosity than non-enzyme MFC. In addition, the aspect ratio of MFC was the highest at 5 pass. MFC addition improved the handsheet strength and the air permeability but worsened the drainage.

• Fashion & Textile Research Journal
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• v.5 no.3
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• pp.244-250
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• 2003

Various types of industry, from manufacturing industry to service industry, can be a subject of exhibition. So, subdivided studies about exhibition for each type of industry or field are necessary. However, there are still insufficient studies about them. Also, fashion industry related exhibitions should be classified differently from other industries' exhibitions because of their special features. Hence, this study examines that how an exhibition is utilized as a promotion means of a company and the present condition of a fashion exhibition. It also compares a fashion exhibition with other industrial exhibitions to suggest the effective operations and the progressive promotion of the fashion exhibition. This study uses questionnaire from 5 companies, which participated fashion related exhibitions. Data of this study is statistically analyzed using SPSS for window ver. 10.0 program. As a result of this study, fashion related companies' recognition of exhibitions has been increased. However, in terms of exhibition participation. attitudes such as pre-promotion or pre-education for the staff, who are in charge of the exhibition booths, and the outcome of the exhibition aren't maximized because the right understanding concerning exhibitions is lacking and long-term preparation is insufficient. Also, advertisement for the exhibitions isn't enough because of insufficient preparation and absence of pre-promotion, so consultation with promising buyers can't be activated. Even though there are consultations, the consultations don't have much effect.

• YAKHAK HOEJI
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• v.49 no.1
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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.

• Journal of the Korean Academy of Esthetic Dentistry
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• v.29 no.1
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• pp.25-34
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• 2020

In recent years, as a burden on tooth preparationduring the processing the laminate veneer treatments to enhance aesthetics, the interests and demands for non-prep laminate veneers are increasing which do not require teeth preparation. Although there are clear limitationsbecause the restorations are fabricated without tooth preparation, there is a clear advantage of non-invasivehealthy teeth. When manufacturing a non-prep laminate veneer, an effective design should be selected according to the aesthetic requirements and intraoral condition because the margin of restorationsshould be determined on the natural tooth surface that isnot prepared. In this article, I would like to presentthe three different designsaccording to the range which teeth are covered, and the advantages and disadvantages of them. Non-prep laminate veneer introduced in this article was fabricated using Lithium disilicate press ingot.

• Fashion & Textile Research Journal
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• v.16 no.6
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• pp.979-986
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• 2014

This study establishes basic data for operations management by organizing processes and measuring time in the mini line for female jackets to improve productivity, ensure competitiveness, and maintain operator competency and the line process flow balance between apparel manufacturing companies. The results of this study are as follows. Sewing operations are divided into preparation functions, arrangement, partial tasks, and assembly that consist of 84 processes. The results from time measurement indicate that 3238.41seconds (sec) were required to produce a single jacket and that the average time required for operators was 231.32 sec. A control limit was established to increase the reliability of the measured value for net time. After outside values were removed, the operation time was measured to be 3176.35 sec. This accounted for 98.08% of the total operation time, with net time decreasing by 62.06. Skill and effort level coefficients were applied to measure the operator performance, the total real time was calculated to be 3415. The requirement for preparation and arrangement operations were 1233.35 sec, and 2182.22 sec for partial tasks and assembly operations. Process separation and organization were performed after the bottleneck operation was selected to identify the maximum line balance. Consequently, process efficiency of preparation and arrangement operations increased from 79.19% to 93.00%, and the partial tasks and assembly operations increased from 62.36% to 90.93%.

• Korean Chemical Engineering Research
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• v.51 no.6
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• pp.661-665
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• 2013

Effect of organic acid on the preparation of indium-oxalate salt from indium scraps generated from ITO glass manufacturing process was studied. Effects of parameters, such as type and concentration of organic acids, pH of reactant, temperature, reaction time on indium-oxalate salt preparation were examined. The impurity removal efficiency was similar for both oxalic acid and citric acid, but citric acid did not make organic acid salt with indium. The optimum conditions were 1.5 M oxalic acid, pH 7, $80^{\circ}C$, and 6 hours. On the other hand, the recoveries increased with pH, but the purity decreased. The indium-oxalate salt purity prepared by two cycles was 99.995% (4N5). The indium-oxalate salt could be converted to indium oxide and indium metal by substitution reaction and calcination.

• Korean Journal of Food Science and Technology
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• v.26 no.3
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• pp.231-238
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• 1994

The brined Chinese cabbages and kimchi seasoning mixture were separately stored and used for preparation of kimchi and the alternative method of conventional kimchi-manufacturing process was investigated. Chinese cabbages brined with 3% and 7% salt contents were stored at $0^{\circ}C$ and $10^{\circ}C$, and kimchi seasoning mixture without salt was stored at $4^{\circ}C$ and $10^{\circ}C$. The changes in pH and total acid of the cabbages were significantly slowly for the brined cabbage of 7% salt and storage at $0^{\circ}C$. Microbial growth including lactic acid bacteria were also increased slowly at $0^{\circ}C$. But, pH and total acid content of the kimchi seasoning mixture were not changed significantly at both temperatures during storage. Sensory evaluation on the kimchi samples showed that the modified method of kimchi preparation with separately stored seasoning mixture and brined cabbages is useful industrially or at home.

• Korean Journal of Food Science and Technology
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• v.23 no.5
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• pp.568-571
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• 1991

This study was designed to select the most stable oil among vegetable oils for mayonnaise preparation on lipid oxidation when blended with perilla oil. Oxidative stabilities of perilla oil, soybean oil, rapeseed oil, corn oil, sunflower oil and perilla blended oils (blended perilla oil with other vegetable oil in a equal weight rate) were tested. Among the perilla blended oils, perilla blended soybean oil was the most effective on oxidative stability. This may be concerned with the fact that the content of natural antioxidant, tocopherol, is higher than that of other oils. Mayonnaise was prepared by using both perilla oil and perilla blended soybean oil. Variations of POV and tocopherol content of mayonnaise during storage at $37^{\circ}C$ were compared. The changes in POV and tocopherol content in the mayonnaise of perilla blended soybean oil were less than those of perilla oil. This result suggested that the usage of perilla blended soybean oil instead of perilla oil itself is possible in the manufacturing of mayonnaise.