• Nuclear Engineering and Technology
• /
• v.55 no.9
• /
• pp.3417-3422
• /
• 2023

Recently, as the clinically positive biological effects of ultra-high dose rate (UHDR) radiation beams have been revealed, interest in flash radiation therapy has increased. Generally, FLASH preclinical experiments are performed using UHDR electron beams generated by linear accelerators. Real-time monitoring of UHDR beams is required to deliver the correct dose to a sample. However, it is difficult to use typical transmission-type ionization chambers for primary beam monitoring because there is no suitable electrometer capable of reading high pulsed currents, and collection efficiency is drastically reduced in pulsed radiation beams with ultra-high doses. In this study, a monitoring method using bremsstrahlung photons generated by irradiation devices and a water phantom was proposed. Charges collected in an ionization chamber located at the back of a water phantom were analyzed using the bremsstrahlung tail on electron depth dose curves obtained using radiochromic films. The dose conversion factor for converting a monitored charge into a delivered dose was determined analytically for the Advanced Markus® chamber and compared with experimentally determined values. It is anticipated that the method proposed in this study can be useful for monitoring sample doses in UHDR electron beam irradiation.

• Asia-Pacific Journal of Business
• /
• v.14 no.3
• /
• pp.25-44
• /
• 2023

Receiving medical services abroad is an event that involves a high level of risk and stress for most people. This study proposes and empirically examines perceived control as a factor that has a potential to reduce the stress associated with overseas medical experience and enhance satisfaction with it. Based on the research findings in environmental psychology, one's perceived control was divided into cognitive control, behavior control, and decision control. A research model and a set of hypotheses were constructed to investigate the effect of each control on satisfaction and word-of-mouth communications among consumers who had overseas medical service experiences. The data collection was conducted through an online survey of 220 Chinese consumers who had visited Korea as plastic medicine tourists. Satisfaction with their service experience was significantly affected by both behavioral control and decisional control, but not by cognitive control. Thus, Chinese medical tourists prefer to maintain the belief that they are in charge of major decisions associated with the medical procedure, and that the results of the medical procedure will have personally desirable consequences. In addition, satisfaction experienced by Chinese consumers with overseas medical services had a significant impact on their word-of-mouth activities. Based on the research results, a set of academic and practical implications were derived.

• Progress in Medical Physics
• /
• v.25 no.1
• /
• pp.46-52
• /
• 2014

Liquid ionization chamber is filled with liquid equivalent material unlike air filled ionization chamber. The high density material allow very small-volume chamber to be constructed that still have a sufficiently high sensitivity. However liquid ionization chamber should be considered for both initial recombination and general recombination. We, therefore, studied using the Co-60 beam as the continuous beam and the microLion chamber (PTW) for comparing the ion collection efficiency by Greening theory, two-dose rate method and our experiment method. The measurements were carried out using Theratron 780 as the cobalt machine and water phantom and 0.6 cc Farmer type ionization chamber was used with microLion chamber in same condition for measuring the charge of microLion chamber according to the dose rates. Dose rate was in 0.125~0.746 Gy/min and voltages applied to the microLion chamber were +400, +600 and +800 V. As the result, the collection efficiency by three method was generally less than 1%. In particular, our experimental collection efficiency was in good agreement within 0.3% with Greening theory except the lowest two dose rates. The collection efficiency by two-dose rate method also agreed with Greening theory generally less than 1%, but the difference was about 4% when the difference of two dose rates were lower. The ion recombination correction factors by Greening theory, two-dose rate method and our experiment were 1.0233, 1.0239 and 1.0316, respectively, in SSD 80 cm, depth 5 cm recommended by TRS-398 protocol. Therefore we confirmed that the loss by ion recombination was about 3% in this condition. We think that our experiment method for ion recombination correction will be useful tool for radiation dosimetry in continuous beam.

• Journal of the Korean Society of Costume
• /
• v.36
• /
• pp.219-238
• /
• 1998

For the purpose of this Study, the situation of Korean costume properties in the collection of overseas museums was investigated through correspondence, interviews with their curators and persons in charge and survey. As results were made about the situation of museum science (conservation) and practical utilization of costume properties. So, the study result were drawn as follows : Krean costume properties unexplaind of 'Korean cultural Properties' could be found in the Metropolitan Museum of Art of New York(135 pieces), the Brooklyn Museum of New York(20 pieces), the Newark Museum of New Jersey(15 pieces), and the Victoria Albert Museum of London(100 pieces). Korean costume properties in the collection of over-seas museums mostly fall under the rang of period between the 19th century and the early 20th century and are classified into everyday clothing, wedding costume and armors for the most part. In 1900s, museum in several countries began to collected Korean cultural properties through foreign missionaries or diplomats as well as merchants or travellers in who bought Korean objects. Recently, scholars, traditional Korean costume designerss and diplomatic and consular offices in overseas have donated our Korean costume to many foreign museums. Korean costume properties were largely on display in the dependent display of folklore museums or in a part of exhibition gallery for Asian culture and there were the separate exhibition rooms in museums in the United Kingdom, Germany, Denmark, Austria, Japan and the United States America. But the size and level of display room for Korean cultural properties is one third as large as that for chinese or Japanese cultual properties. It was found in this study that the traditional Korean costume in the collection of overseas museums was largely recorded only as general items rather than given their proper names. The typical example of misnaming included bridal's Kimono for Wonsam(원삼) in the Metropolitan Museum of Art, Yeonroksaek-bumunsajeokori for Dangeui(당의) and Jissan-gryongwonmunsadurumagi for Kongdali(동달이) in the Okura collection of the Tokyo National Museum, and so on. And the Victoria Albert Museum modified the way of wearing Daenim(대님) and the National Museum of Ethnology in Osaka seemed to misplace the ornament of Keanggi(댕기) on Mubok(무복) and Josunjuk(조선족: Chinese-Korean) Museum also misplace hansam(한삼). On the one hand, the Newark museum of New Jersey mixed Chinese armor with the Korean one and the Photohraph of King Kojong(고종) with Chinese one. It is corrected to publish and disseminate the book concering Korean costume in order to inform foreign museums of thed proper names and wearing method of our traditional costumed. The repair of costume before cleaning in the process of conservation treatment can prevent damage likely to occur as the properties of fiber itself are weakened in liquid. It is recommended that western 8-figure stitch and tacking stitch is added to Korean traditional stitching method. Museums in the U.S.A and the U.K are concerned about the aftermath of cleaning it-self, specially conservation treatment may exert on remains and predominantly use the vacuuming method to remove dust or bits of straw before the exhibition beings. But in case of Korea, the dry cleaning and wet cleaning method are used according to the nature and state of a sample costume. This comprehensive cleaning method is gradually developing scientifically but it is expected that those concerned will make a chemical analysis of the solvent to be used and also the more precise test of costume properties will be conducted before cleaning them. A partial study was made here because the scope of study was too broad and vast. It is expected that more studies will be conducted concerning our costume culture under the long-term plan and active support at the government level.

• Journal of the Korean Society for information Management
• /
• v.22 no.3 s.57
• /
• pp.327-350
• /
• 2005

Second, the necessity of adopting subject divisional plan is to secure enough subject librarians and large space These necessities must be fulfilled prior to adopting the subject divisional plan. Third subject divisional plan model for efficient reference service of university library is 'wide-area subject divisional plan model'. 1) In the case of central library, the space model of wide-area subject divisional plan is programmed as undergraduate library for the undergraduate students. And each subject libraries is operated as research library for the professors and graduate students. 2) In central library, the collection model of wide-area subject divisional plan is practiced as offering reference and general education centered data for undergraduate students 'study. And each subject libraries is furnished with research papers, recent journals, and various major-related data. 3) The human resource model of wide-area subject divisional plan is applicated by arranging appropriate librarians at the right place. In the case of central library, the reference librarians and librarians who educate the users and take charge of function are set in to help undergraduate students with their study. Subject library needs to secure subject librarians, librarians who take charge of function, and graduate students who are related to the subject as student assistant. Then it is possible to discriminate reference service by subjects and users.

• Journal of Korean Library and Information Science Society
• /
• v.45 no.4
• /
• pp.67-93
• /
• 2014

This study aims to present a direction for local libraries on how to collect folk culture content and provide services in cooperation with public libraries across the country, with a focus on public libraries, in implementing the government policy to collect, classify, store, research, and utilize folk culture content. Results of the study drawn from literature review, surveys, case-studies are as follows: First, based on the advantage of higher accessibility than other institutions in charge of folk culture content provision, libraries should take a role to collect, store, and utilize folk culture content for public purpose of improving knowledge and interests of residents and storing local history. Second, folk culture content collection, enhanced content-creating, and user-oriented services reflecting various demands should be expanded, seeking ways to improve management conditions of folk culture content based on collaboration network between libraries, along with drawing interests and support from the local government and the central government. Thirdly, libraries should provide expanded services of collection, creation, use of folk culture content with a focus on local culture through regular and systematic study and building of folk culture content.

• Korean Journal of Heritage: History & Science
• /
• v.52 no.1
• /
• pp.148-169
• /
• 2019

The purpose of this paper is to understand characteristics and trends of calligraphy styles through the analysis of handwriting. Renowned Calligraphy of Korea (海東名迹, Haedong Myeongjeok) is the first collection of famous Korean calligraphers' masterpieces and was published by Shin Gongje (申公濟, 1469-1536) in the early sixteenth century. While my previous studies have focused on analyzing the publishing backgrounds of and differences among the wood block editions and stone-carved editions of the various remaining copies of Renowned Calligraphy of Korea, this study examines the calligraphy style in the early Joseon period as represented within the collection itself. This study tries to identify the aspects of style transitions among two categories of calligraphy: (1) the calligraphy style of scribes who were in charge of documentation in the central administrative institutions (館閣) and (2) the calligraphy style passed down among the Goryeong Shin clan (高靈申氏). This study verifies that various styles which emerged based on the influence of the revivalism of the late Yuan dynasty gained acceptance in the early Joseon period while the traditional Wang Xizhi style was still in use. The most notable revelation of this study is that the calligraphy style of Kangli Naonao (康里??), a Yuan dynasty calligrapher from a remote region to the west of China, appears to have become acceptable during this period. Indeed, various Yuan dynasty styles were flowing into Korea during the late Goryeo and the early Joseon period that stand in contrast to Zhao Mengfu's "pine-snow calligraphy style." Finally, the authenticity of the Eo Sukguan (魚叔權)'s record in A Storyteller's Miscellany (稗官雜記, Paegwanjapgi) is reviewed in this study. Eo claims that writing attributed to Park Gyeong in Renowned Calligraphy of Korea was actually Shin Jageon's. However, the analysis of the relationship between Shin and Park based on their backgrounds and their political positions suggests that Eo's claim is not valid.

• Journal of Environmental Impact Assessment
• /
• v.22 no.2
• /
• pp.183-194
• /
• 2013

The Ministry of Environment, Ministry of Agriculture, Fishery and Forestry, and Ministry of Construction, Transportation and Maritime Affairs are in charge of livestock manure management. There are national statistics regarding the livestock industry such as the National Pollution Source Survey, Livestock Statistic Survey, and Livestock-breeding Trend Survey. The current statistical data are focused on the scale of livestock breeding and the production of livestock manure using these data, but it is difficult to establish database due to lack of information. In order to plan relevant policies including management of livestock manure, the government established database systems such as the integrated information system of livestock manure, the integrated system of national infectious animal-disease prevention, and the Sae-ol public administrative system. We have tried to suggest improvements for the comprehensive environmental information system of livestock manure management by detecting problems in each level of the livestock manure life-cycle, making use of the existing systems, and considering the electronic transfer system of livestock manure. The services and functions of this comprehensive system include information of livestock farmers, the production, collection, transportation, and treatment of livestock manure, the area of agricultural land used for livestock manure, the report of approval and results on livestock manure products, management of statistical information, management of civil affairs, and relevant mobile application services. The system is made up of three processes: first, establishment of GIS-based management database of livestock manure; second, establishment of a history management system for livestock manure transactions; and third, development of a water quality assessment system.

• Journal of Korean Academy of Nursing Administration
• /
• v.13 no.4
• /
• pp.553-561
• /
• 2007

Purpose: This study aimed to assess needs of training programs for APN practice courses and continuing education programs for APNs to provide baseline data to improve APN education and practice. Methods: A total of 98 questionnaires were distributed to professors in 38 nursing institutions and 64 (65.3%) were returned. Data collection was performed in November and December, 2007 through email. Results: Professors in charge of geriatric and home care nurse practitioner programs constituted 43.7% of the study participants. Forty-one percent answered that they were satisfied with the practice programs they currently have operated, while 36.5% responded to have difficulty in appointment of institutions for practice programs and 56.3% had problems in assignment of preceptorship. In case of developing training programs for APN practice courses, 58.7% answered that they are willing to participate, and 90.6% felt needs for development of continuing education programs for APNs. Regarding liability insurance for APN students, only 11.5% provided insurance policy. Conclusion: The study results indicated that standardized training programs are needed to assure quality of APN education, and continuing education programs are required to provide opportunities for APNs to improve competencies.

• The Journal of Asian Finance, Economics and Business
• /
• v.7 no.6
• /
• pp.365-378
• /
• 2020

The study aims to develop concepts originating through empirical research models to build superior competitiveness and optimal performance achievement. Therefore, to bridge these goals, the study addresses several indicators/items as a novelty, namely, entrepreneurship insight factors, market orientation, knowledge-sharing, innovation, managerial capability, product strategy, process and service improvement, resources capability to improve performance and increase competitiveness by empirical model direct, mediating and indirect effect. The total sample in this study is 497 eligible SMEs that partner with go-food in Makassar City. All research samples are the owner or the person in charge of the business; the data collection period is from May to December 2019. Data are collecting using a survey with 64 construct questions, summarized in seven manifest variables. The research method uses quantitative tools, with SMART-PLS as a statistical tool. This study develops sixteen hypotheses; all of the hypotheses are supported both directly, indirectly, and mediated. The study also found that the link based on CCT, RBV, and TAM Theory is the right choice of theories, as the foundation of this study was very reliable and valid. Indeed, all of the grounded methods have implications both in theory and its main application for the business in the online marketplace.