• Journal of Chest Surgery
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• v.25 no.10
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• pp.1157-1160
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• 1992

Aortic valve repair with the use of tailored autologous pericardial extension to the native cusp was performed in one patient with rheumatic aortic valve incompetence. The patient was a 10-year-old girl with Grade II aortic regurgitation and tiny postoperative recannalization of the patent ductus arteriosus. The left aortic coronary cusp appeared to be a little thickened and a cicatrical shortening of the distance between the free edge of the cusp and its annular attachment. A semilunar shaped patch of autologous pericardium, treated with glutaraldehyde solution[6 minutes in 0.6% solution] was sutured along the free edge of the left coronry cusp. Postoperative recovery was uneventful. Echocardiography 8 months later showed Grade I aortic regurgitation. She is now conducting as usual life.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.15 no.11
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• pp.6669-6675
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• 2014

An invention produced through research by a professor at a university is an employee invention, and the industrial academy cooperation foundation of the university has the right to obtain a patent. The professor, in return, obtains the right to receive reasonable compensation for that invention. Research was carried out mostly by the cooperation and participation of students rather than the solitary performance of the professor. The contributory portion of the student to an invention can be treated as an employee invention, but occasionally it is considered a free invention. Therefore, the unilateral succession to the right to obtain a patent to the industrial academy cooperation foundation highlights the potential disputes between the university and students in the future. Therefore, in this study, the intellectual properties management codes of 80 universities were reviewed and analyzed for any possible problems and the appropriate directions to the codes' amendments are suggested.

• Journal of Engineering Education Research
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• v.15 no.4
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• pp.14-20
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• 2012

The Regional Cooperative Development Center (RCDC) at Tokushima Bunri University was established in 2005. The role of the RCDC is to make a social contribution and to assist in the development of human resources. The RCDC has made contributions to society by organizing meetings to facilitate the exchange of technology, holding public lectures, supporting joint research projects, providing technical assistance for manufacturers, making available the free use of equipment owned by the university and so on. Additionally, the RCDC has put much effort into giving undergraduate students internship opportunities at industries in the eastern part of Kagawa Prefecture (the TOSAN area) in Japan. The RCDC also trained a contracted researcher from a small company about the creation of intellectual property, including how to conduct a patent prior art search, how to prepare a patent specification, etc. The RCDC has worked in partnership with industry, Sanuki City Society of Commerce and Industry and Higashi-Kagawa City Society of Commerce and Industry in order to revitalize local communities.

• Archives of Craniofacial Surgery
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• v.16 no.3
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• pp.143-146
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• 2015

In this report, we present a scalp defect reconstruction with lateral arm free flap. We highlight the difficulty in obtaining a recipient vein and the venous drainage managed through an open end of the donor vein. A 52-year-old woman presented with a pressure sore on the left scalp. A lateral arm free flap was transferred to cover this $8{\times}6cm$ defect. The arterial anastomosis was successful, but no recipient vein could be identified within the wound bed. Instead, we used a donor venous end for the direct open venous drainage. In order to keep this exposed venous end patent, we applied heparin-soaked gauze dressing to the wound. Also, the vein end was mechanically dilated and irrigated with heparin solution at two hour intervals. Along with fluid management and blood transfusion, this management was continued for the five days after the operation. The flap survived well without any complication. Through this case, we were able to demonstrate that venous congestion can be avoided by drainage of the venous blood through an open vessel without the use of leeches.

• Journal of the Economic Geographical Society of Korea
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• v.9 no.3
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• pp.318-340
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• 2006

In the last decade, there has been a widespread interest in knowledge production activities as a new engine of endogeneous growth. In the knowledge-based economy, there has been a growing importance of the patent as the index of knowledge production. Much literature suggests that knowledge production activities tend to be spatially concentrated and formed the clusters in the advanced economies. The purpose of this paper is to analyze spatial-temporal patterns of knowledge production activities in Korea based on a data set of patents from 1981-2000. This paper uses spatial statistical methods and GIS to explore the spatial dimensions of knowledge production activities in Korea. Through this research, it was found that knowledge production activities were unevenly distributed. The knowledge production activity measured by patent counts is highly concentrated in a limited number of cities. The top 10 cities accounted for 68.5% of the total number of patents in the period of 1981-2000, suggesting the existence of a strong concentration of knowledge production activities in Korea. The locations of knowledge production activities by themselves represented a strong spatial autocorrelation. The concentration of knowledge production activities in Korea is spatially correlated to the concentration of adjacent neighboring cities. The location of knowledge production activities is not free from a spatial context and spillover of knowledge production activities are heavily bounded within geographic limits, forming a spatial cluster. There appear some quite a large spatial cluster around the seoul metropolitan area.

• Membrane Journal
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• v.32 no.4
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• pp.235-252
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• 2022

Forward osmotic pressure-free reverse osmosis (Δ𝜋=0 RO) was invented in 2013. The first patent (US 9,950,297 B2) was registered on April 18, 2018. The "Osmotic Pressure of Concentrated Solutions" in JACS (1908) by G.N. Lewis of MIT was used for the estimation. The Chang's RO system differs from conventional RO (C-RO) in that two-chamber system of osmotic pressure equalizer and a low-pressure RO system while C-RO is based on a single chamber. Chang claimed that all aqueous solutions, including salt water, regardless of its osmotic pressure can be separated into water and salt. The second patent (US 10.953.367B2, March 23, 2021) showed that a low-pressure reverse osmosis is possible for 3.0% input at Δ𝜋 of 10 to 12 bar. Singularity ZERO reverse osmosis from his third patent (Korea patent 10-22322755, US-PCT/KR202003595) for a 3.0% NaCl input, 50% more water recovery, use of 1/3 RO membrane area, and 1/5th of theoretical energy. These numbers come from Chang's laboratory experiments and theoretical analysis. Relative residence time (RRT) of feed and OE chambers makes Δ𝜋 to zero or negative by recycling enriched feed flow. The construction cost by S-ZERO was estimated to be around 50~60% of the current RO system.

• Safety and Health at Work
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• v.9 no.3
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• pp.360-364
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• 2018

Asbestos has been banned in many countries but many countries, including developing countries, are still using asbestos or materials containing asbestos. Substitute materials have been studied and developed over a long period of time because of the hazards of asbestos, and many people have recently shown interest in the hazards of substitute materials. However, comprehensive information about the types of asbestos substitutes, their use and health hazards, and references for the protection for the health of workers is limited. The purpose of this study is to provide people in the related industries with information on the types and health hazards of fibrous materials that can be used as asbestos substitutes. According to the patent resources from the United States and Europe, fibrous materials have been used to develop asbestos-free products since before 1980. Recently, the health hazards of asbestos substitutes have been assessed and many additional researches are required. However, only some of the substitute materials have been assessed for health hazards, and health hazard data has not been sufficient in many cases. Therefore, efforts should be made to minimize workers' exposure to substitute materials that do not contain asbestos.

• Proceeding of EDISON Challenge
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• 2015.03a
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• pp.491-495
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• 2015

Currently, selfie stick, a monopod take selfie photographs, got its popularity. Cradle used to connect selfie stick and smartphone usually uses electric force of spring to get smartphone fixed. But, using electric forces makes it hard to attach and detach smartphone from the cradle and gives possibility of smartphone falling down. CoQue suggests new solution of smartphone cradle by using cable tie (patent number US 8407863 B2) instead of electric force. It will give more easy and stable way of using selfie stick.

• Journal of the Korea Society of Computer and Information
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• v.21 no.1
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• pp.125-129
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• 2016

In this paper, we propose an efficient dynamic workload balancing strategy which improves the performance of high-performance computing system. The key idea of this dynamic workload balancing strategy is to minimize execution time of each job and to maximize the system throughput by effectively using system resource such as CPU, memory. Also, this strategy dynamically allocates job by considering demanded memory size of executing job and workload status of each node. If an overload node occurs due to allocated job, the proposed scheme migrates job, executing in overload nodes, to another free nodes and reduces the waiting time and execution time of job by balancing workload of each node. Through simulation, we show that the proposed dynamic workload balancing strategy based on CPU, memory improves the performance of high-performance computing system compared to previous strategies.

• The Research Journal of the Costume Culture
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• v.16 no.5
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• pp.878-890
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• 2008

As a pioneer of modem dance, $Lo{\ddot{i}}e$ Fuller($1869\sim1928$) was important because she introduced a free style dance using a new style of stage costumes. Also, $Lo{\ddot{i}}e$ Fuller was an important motif in $fin-de-si{\grave{e}}cle$, French arts, posters, sculptures, and so forth. This study aimed to clarify the characteristics of Fuller's dance and costumes, and to analyze the modernism in both. To better understand Fuller's dance, this article talks about research on Fuller's career, dance, and Fuller's own biography. Stage costumes, letters for patent, and photographs were are also studied. The most important elements of Fuller's dance were her costumes and the electric lights which could make free style expressions a fantastic representation of dance. To clarify the modernity of Fuller's dance, first of all, this study researched Fuller's career in dance and then analyzed representations of Fuller's dances in visual arts; posters, sculptures and lastly, the characteristics of Fuller's stage costumes. As a result, this article analyzed characteristics of Fuller's dance in three points. First, Fuller used sculptures of silk cloth's drapery to express physical movements and actions. Second, Fuller used lighting and electrical effects that had just been developed in the late 19th Century. Third, Fuller made an application for patents against stage costume and stage mechanisms for her original shows. This study focused on $Lo{\ddot{i}}e$ Fuller's stage costumes which played a main role in expressing fantastic sculptures for the first time in costume, visual arts, and dance studies. This study clarifies the characteristics of the stage costumes in Fuller's dance and is estimated as pioneering and fundamental research.