• Resources Recycling
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• v.24 no.5
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• pp.22-32
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• 2015

This study aims to discuss the concept of upcycling as it applies to diaper recycling. Upcycling is the process of converting waste materials into new products of better quality. Through benchmarking of upcycling examples, useless objects can be transformed into valuable materials. However, current upcycling examples determine value creation related to qualitative elements, so that it is difficult to establish any quantitative strategy of upcycled products. Therefore, this study expands a B2B (Business to business) product for improving market availability and establishes a direction using both recovered pulp and mixed plastic at the same time. As a result, the upcycling method for recovered pulp and mixed plastics, is the application of a cellulose insulator. Within the near future, the high quality insulator market will grow more than three times. An upcycling strategy targeting the high quality insulator market needs to be established.

• Journal of the Society of Cosmetic Scientists of Korea
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• v.33 no.4
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• pp.209-217
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• 2007

Melanin plays an important role in protecting human skin from UV radiation and determines the race and skin color. Melanin is also major target for developing skin-whitening cosmeceuticals. Recently, as the market size of skin-whitening cosmeceuticals has rapidly expanded, related researches and developments are also focused on maximizing the safety and efficacy. Also, patents of skin-whitening materials have been increasing steadily for ensuring the competitive power. Patent also shows the research trend of industry and institutes. In this review, we analyze the trend of research and development based on the patent application of skin-whitening cosmeceuticals.

• Korean Journal of Veterinary Research
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• v.16 no.1
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• pp.27-34
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• 1976

악상남도(惡尙南道) 김해군(金海郡) S 양돈장(養豚場)에서 1975년 4월 하순부터 5월 하순 사이에 사육돈(飼育豚) 1,200두중 약 350두에서 출혈성하리(出血性下痢)를 주증(主症)으로 하는 전염성(傳染性)이 강한 소화기질환(消化器疾患)이 발생하였다. 환돈(患豚)은 7주령(週齡)에서부터 14주령(週齡)까지에서 가장 많이 발생하고 급성(急性) 또는 아급성(亞急性)으로 경과하였으며 다량의 황백색(黃白色), 수양하리(水樣下痢)를 발하다가 황갈색(黃褐色), 포말성하리(泡沫性下痢) 또는 암적갈색(暗赤褐色) 점액성하리(粘液性下痢)를 나타내었다. 육안적(肉眼的) 병변(病變)은 대장(大腸)에 한하였으며 카타아르성(性), 출혈성(出血性) 내지 괴사성장염(壞死性腸炎)을 시현(示顯)하였으며 괴사(壞死)는 광범(廣凡)하나 표재성(表在性)이고 어떤 예에서는 결장점막(結腸粘膜) 속에 대소(大小)의 미세결절(微細結節)이 밀발(密發)한 것이 특징이었다. 조직학적검사(組織學的檢査)에서는 대장점막(大腸粘膜)에 현저한 배세포증식(杯細胞增殖), 울혈(鬱血) 및 원형세포침윤(圓形細胞浸潤)과 더불어 표재성괴사(表在性壞死)가 관찰되었고 상기(上記) 결절(結節)은 장선(腸腺) 속에 점액(粘液), 섬유소(纖維素) 및 붕괴세포(崩壞細胞)가 축적되어 선와(腺窩)가 확장되고 피복상피(被覆上皮)의 이형성(異形成)(dysplasia)을 일으키고 있음이 판명되었다. 병변부(病變部)의 세균염색(細菌染色)에 의하여 대형(大型) Spirocheta와 Vibrio 고균(孤菌)이 무수(無數)히 발견되었고 Spirocheta가 병변형성(病變形成)에 더 밀접하게 관련되어 있음이 밝혀졌다.

• The korean journal of orthodontics
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• v.23 no.4 s.43
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• pp.529-541
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• 1993

The purpose of this study was to investigate not only the variability in the timing and amount of the maximum pubertal spurt in cranial base and mandible, but also its interrelationship with the timing of peak height velocity. This study was carried out by analysing biannual serial lateral cephalometric radiographs of twenty-six males and twenty-one females who were taken from 8.5years to 16.5years old of mean age, according to the established land-marks and linear measurements. The results of this study were summarized as follows. 1. Prevalance of the maximum growth spurt more than 80 percentage was occurred in all measurements of cranial base and mandible, except posterior cranial base length in the female. 2. In all measurements of cranial base and mandible, the maximum spurt was occurred earlier in the female than the male while it was greater in male in all measurements except ramal height. 3. In body height measurement, the peak height velocity was occurred 2 years earlier for the female(11.0 years old) than the male(13.0 years old). 4. The timing of maximum spurt in anterior cranial base length and total mandibular length in both sexes and ramal height in the female were coincided with PHV. The maximum spurt was occurred in both sexes in all measurements 2 years before or after PHV, except mandibular body length and posterior cranial base length the in female. 5. In all ages, there was significant correlation between the total mandibular length and ramal height, and was also correlation between total cranial base length and anterior cranial base length(P<0.05). However, there was no significant correlation between the ramal height and mandibular body length. In addition, there was also no any correlation between the anterior cranial base length and posterior cranial base length in all ages(P>0.05).

• Journal of Chest Surgery
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• v.41 no.2
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• pp.273-276
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• 2008

Since the introduction of extracorporeal cardiopulmonary support of cardiac arrest in 1983, emergent cardiopulmonary support has been used to treat cardiac arrest. Acute massive pulmonary embolism is associated with a high mortality rate and it poses a challenge for both the anesthesiologist and the surgeons especially during operations. This report describes the use of the emergent bypass system in the effective management of an intraoperative massive pulmonary embolism and cardiac arrest in a 56-year-old woman. The patient was discharged on warfarin and there was no recurrence of the pulmonary embolism at the follow-up visit.

• Journal of Food Hygiene and Safety
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• v.8 no.2
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• pp.105-117
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• 1993

The objective of this investigation was to characterize the subacute toxic potency of orally administered poly(sodium acrylic acid-acrylic acid), super absorbent polymer. Four groups of rats were maintained on diets containing 0, 1.25, 2.5 or 5% of poly(sodium acrylic acid-acrylic acid). The mean dosages of poly(sodium acrylic acid-acrylic acid) were estimated to be 1025 mg/kg/day, 2009 mg/kg/day and 4728 mg/kg/day in the male groups. The estimated average dosages of poly(sodium acrylic acid-acrylic acid) in the female groups were 1011 mg/kg/day, 2088 mg /kg/day and 4576 mg/kg/day, respectively. Few test compound-related toxic effects were observed in body weight gain, clinical signs, hematological parameters and serum biochemical values. Urinalyses, gross necropsy and histopathology revealed no evidence of specific toxicity. Food and water consumption tended to increase in the animals fed the diet of 2.5% and 5%. Our data indicate that no-observed effect level of poly(sodium acrylic acid-acrylic acid) was estimated to be 1.25% in the diet (mean dosage: 1025 mg/kg/day in male rats, 1011 mg/kg/day in female rats).

• Journal of Food Hygiene and Safety
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• v.33 no.3
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• pp.214-219
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• 2018

The present study was carried out to investigate the acute oral toxicity of Chamaecyparis obtusa (C. obtusa) essential oil in ICR male and female mice. Acute oral treatment with C. obtusa essential oil did not reveal any sign of toxicity or mortality in treated mice. Mouse body weights were not affected after single oral administration of C. obtusa essential oil during the 14-day observation period. In the hematological and blood biochemical analysis, all parameters of the treated group with 2,000 mg/kg body weight of the essential oil were not significantly different those of the control group. Therefore, the lethal dose 50 of the essential oil was estimated to be greater than 2,000 mg/kg body weight in mice, which indicated that the essential oil is non-toxic. In conclusion, this study suggests that C. obtusa essential oil orally safe ICR mice.

• Management & Information Systems Review
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• v.39 no.3
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• pp.127-140
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• 2020

This study conducted analysis of YouTube channels by domestic companies as the marketing strategies of domestic companies vary due to the rapid growth of the Internet and YouTube channels. The YouTube channel analysis analyzed the number of subscribers, plays, videos and classifications of domestic companies on YouTube channels, the top 100 domestic companies in the YouTube ranking site "Company/Official. The analysis showed that 4.53 million companies had the largest number of subscribers, Samsung mobile, 544.69 million circuit Samsung mobile, and 11,416 League of Legends-Korea channels had the largest number of videos. The most product classification showed that food/dining companies were engaged in a lot of YouTube activities. The use of YouTube, which is rapidly growing in companies through analyzing YouTube channels from the perspective of a company's new marketing strategy, is a new tool for integrated marketing communications. It is expected that the YouTube channel, which enables two-way communication of companies' marketing strategies, will be used as basic data when producing YouTube content in the future.

• Journal of Digital Convergence
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• v.10 no.7
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• pp.193-200
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• 2012

This study aims to provide an important base resource for the effective medical supply system construction by figuring out the characteristics and changes of admission medical use of gastritis in 160 middle treatment areas classified by 2008 patient examination resources, and by figuring out factors affecting on changes. As a result, in terms of admission rate according to sex and age standardization per small area, there were differences as EQ was 15.1 and CV was 0.4. Top 10 variations were mainly in rural areas. It showed significant positive relations between admission and the number of bed, doctor and special medical equipment per 10,000 population. It is recommended that the government set a priority in the management of regional bed supply and the distribution of efficient medical resources.

• Journal of Korea Port Economic Association
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• v.23 no.2
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• pp.41-61
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• 2007

After the joining in the WTO of China, the container throughputs have begun to increase notably and Continuous developments of China ports are influencing operation and policy of Korea ports. At this point Pyeongtaek Dangjin port which has potency as China trading port confronts with turning point of port development as new port. To this, correct need grasping of North China shippers is important strategic element of PyeongTaek Dangjin Port activation. In this study, there is purpose to present Pyeongtaek Port's activation strategy by grasping customer needs executing questionnaire to China local company about Pyeongtaek Dangjin Port. As a research result, Pyeongtaek Dangjin Port possesses high geographical strength but has problems like development delay, tribe of various route, absence of marketing strategy. To solve this problem, this paper proposes expansion of port and logistics physical distribution equipment, improvement of services, foundation of joint logistics center, establishment of marketing organization etc. Namely, it may overcome only new port's limitation though develop to port of cargo creation style that is not simple cargo dependence style port.