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장현철,김경식,방준현,최천진,엄정식,김응준,이루지 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.2
The purpose of this study was to examine the perception and preference of skiers in a bid to provide ski resorts with useful information about successful positioning strategy. The subjects in this study were 9,722 skiers who purchased season tickets from N web site that sold ski season tickets. Their online purchasing route and page view were analyzed to find out what factors affected their purchase of ski season tickets. The findings of this study were as follows: First, 78 percent of the people investigated were make, and 22 percent were female. By age, the largest group was in their 20s(5,344 skiers), followed by those in their 30s(3,434), those in their 40s(631) and teenagers(229). Second, their page view rate with Yangji recorded highest with 24%, followed by Sungwoo Resort with 23% and Chonmasan with 13 percent. Third, by geographic area, the skiers from southern Gyeonggi province bought the largest number of tickets for the 2002/2003 season, followed by Gangweon province residents and northem Gyeonggi province dwellers. In the case of the 2003/2004 season, those from Gangweon provinece pruchased the most tickets, followed by southern Gyeonggi province dwellers and north Gyeonggi province residents.
김무식,최충식,이오석,전장표 대구보건대학 2002 대구보건대학 論文集 Vol.22 No.-
We investigated the basic operation conditions and biological properties for the dyeing wastewater treatment by sequencing batch reactor(SBR) process. The results are summarized as bellow. The experimental results were constructed with design factor. a. COD removal efficiency was appeared to be over 53% when carbohydrate not added to dyeing wastewater. According to carbohydrate addition weight COD removal efficiency was improved to 92%. b. TKN removal efficiency was appeared to be over 43% when carbohydrate not added to dyeing wastewater. When carbohydrate added to dyeing waste water TKN removal efficiency was achieved 87%. In a conclusion, therefore, under all the conditions provided in this study Sequencing Batch Reactor process appeared to be effective, economical and useful process for dyeing wastewater treatment.
응급실에서 소아환자의 진정제로서 케타민(Ketamine)의 사용
서정필,박준석,황태식,장석준,김승호 대한응급의학회 2000 대한응급의학회지 Vol.11 No.3
Background: Ketamine use in emergency room has been increased. It has rapid onset of action and appropriate duration of action. It does not need endotracheal intubation and produces potent analgesia, sedation, and amnesia. The object of this study is to determine the safety and the degree of physician's satisfaction in relation to ketamine use. Materials and Methods: This is a prospective study using protocol. Pediatric trauma patients who need sedation were given IM ketamine(4 ㎎/㎏) and atropine(0.01 ㎎/㎏) in a same syringe. Monitoring of patients was done by EM residents and complications of ketamine use were recorded. Physician's satisfaction was also recorded after the procedure. Results: Intramuscular ketamine was administered 54 times, mainly for laceration repair. Physicians completed protocol for 51 of treated children. The median time for onset of sedation was 6.5±2.4 min, and duration of action was 32.4±10.8 min. Hypersalivation occurred in 9.8%(n=5); random movement 3.9%(n=2), emesis during procedure(n=1), emesis at home(n=1), and transient oxygen desaturation(n=1). All were quickly identified and treated without specific airway management and sequelae. Of 84% of physicians was satisfied with ketamine use for pediatric sedation. Conclusion: Intramuscular ketamine can be administered safely and satisfactorily in emergency room to facilitate pediatric procedures in conjunction with a defined protocol and appropriate monitoring.
Jun, Shin-Hee,Lee, Eun-Jung,Jang, Tae-Sik,Kim, Hyoun-Ee,Jang, Jun-Hyeog,Koh, Young-Hag Chapman and Hall ; Kluwer Academic Publishers 2013 Journal of materials science, Materials in medicin Vol.24 No.3
<P>In this study, a silica xerogel-chitosan hybrid is utilized as a coating material to incorporate bone morphogenic protein-2 (BMP-2) on a porous hydroxyapatite (HA) scaffold for bone tissue engineering. BMP-2 is known as a therapeutic agent for improving bone regeneration and repair. Silica xerogel-chitosan hybrids have been used for the delivery of a growth factor as well as osteoconductive coatings. The biological properties of the hybrid coating incorporated with BMP-2 were evaluated in terms of the BMP-2 release behavior, osteoblastic cellular responses and in vivo performance. BMP-2 was continuously released from the hybrid coating layer on the porous HA scaffold for up to 6 weeks. The hybrid coating containing BMP-2 showed significantly enhanced osteoblastic cell responses in comparison with the hybrid coating and HA substrate. Consequently, new bone formation was significantly increased within the hybrid coating containing BMP-2. These results reveal that the hybrid coating containing BMP-2 has the potential to be used as a bone implant, whose osteogenic properties are promoted by the release of BMP-2 in a controlled manner for a prolonged period of time.</P>
Long-Term Stable, Low-Temperature Remote Silicate Phosphor Thick Films Printed on a Glass Substrate
Kim, Jun Sik,Kwon, Oh Hyeon,Jang, Jin Woo,Lee, Sung Hyun,Han, Sung Jun,Lee, Joo Hong,Cho, Yong Soo American Chemical Society 2015 ACS Combinatorial Science Vol.17 No.4
<P>A critical step in providing better phosphor solution for white light emitting diode (LED) is to utilize inexpensive silicate phosphors with strong thermal stability. Here, we demonstrate yellow silicate phosphor-embedded glass thick films with a high luminous efficacy of ∼32 lm/W at 200 mA as a nonconventional remote-phosphor approach. The simple screen-printing process of a paste consisting of (Ba,Sr,Ca)<SUB>2</SUB>SiO<SUB>4</SUB>:Eu<SUP>2+</SUP> phosphor and a low softening point glass creates a planar remote structure on a regular soda lime silicate glass with controllable film thickness and location (top vs bottom) of the phosphor layer. The glass matrix provides promising densification and adhesion with the substrate at the optimal low temperature of 410 °C, with the long-term stability in luminous efficacy over 500 h of operation. The proposed phosphor structure has important implications to overcome current limitations as phosphors.</P><P><B>Graphic Abstract</B> <IMG SRC='http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/acsccc/2015/acsccc.2015.17.issue-4/co500169t/production/images/medium/co-2014-00169t_0008.gif'></P><P><A href='http://pubs.acs.org/doi/suppl/10.1021/co500169t'>ACS Electronic Supporting Info</A></P>
Hyung-Jun Noh,Young-Bok Yoo,Si-Young Lee,Jang-Sun Suh,Jang-Sik Kwon,Chang-Sung Jhune,Kab-Yeul Jang,Soon-Ja Seok,Kang-RO Lee 한국버섯학회 2008 한국버섯학회지 Vol.6 No.2
This study was carried out to investigate amino acid contents of golden mushroom and pink mushroom. The amino acid analysis was followed by AccQ-Tag method and HPLC on gradient conditions. Seventeen amino acids were analyzed and sixteen amino acids were found in golden mushroom ; fifteen amino acids in pink mushroom respectively. Among total amino acid in golden mushroom, cystein content was the highest and glycine, glutamic acid, proline were followed. Among total amino acid in pink mushroom, cystein was the highest and glycine, lysine, methionine were followed. As shown in Fig.1, 2, concerning amino acids, cystein was dominant. and alanine was detectied in golden mushroom but pink mushroom.