• Clinics in Shoulder and Elbow
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• v.5 no.2
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• pp.88-97
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• 2002

The purpose of this study was to compare the outcomes between arthroscopir repair and mini-open repair of medium and large rotator cuff tears in which arthroscopic repair was technically unsuccessful. We evaluated 76 patients of full-thickness rotator cuff tears, among them 42 patients had all-arthroscopic and 34 patients had mini-open salvage repairs. Patients who had acromioclavicular arthritis, subscapularis tear, or instability were excluded. There were 39 males and 37 females with mean age of 56 years (range,42 to 75 years). At a mean follow-up of 39 months (range, 24 to 64 months), the results of both groups were compared with regard to the UCLA and ASES shoulder rating scale s. Shoulder scores improved in all ratings in both groups (p > 0.05). Overall, sixty-six patients showed excellent or gr)of and ten patients showed fair or poor scores by the UCLA scale. Seventy-two patients satisfactorily returned to prior activity. Four showed unsatisfactory return. The range of motion, strength, and patient's satisfaction were improved postoperatively. There were no difference in shoulder scores, pain, and activity return between the arthroscopic and mini-open salvage groups (p > 0.05). However, Patients with larger size tear showed lower shoulder scores and less predictive recovery of the strength and function (p < 0.05). Postoperative pain was not different with respect to the size of the tear (p : 0.251). Arthroscopic repair of medium and large full-thickness rotator cuff tears had iln equal outcome to technically unsuccessful arthroscopic repairs, which were salvaged by conversion to a mini- open repair technique. Surgical outcome depended on the size of the tear, rather than the method of repair.

• Journal of Korean Home Economics Education Association
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• v.8 no.2
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• pp.29-41
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• 1996

In this research, researcher will examined the theoretical background of open education. Based on the result of the development of the suggested guidelines for a home economics teaching/learning program, researcher concludes that in order for the teaching/learning programs based on open education to be efficiently acieved in the classroom environment-organization at the middle school the following reform measures must accompany these programs. First, in order for the special characteristics of open education, i.e., individualized and small group study, to be effectively achieved, it is necessary to improve the physical classroom environment-organization. Second, the two class hours per week currently allotted for home economics are not sufficient to convey the information in the textbook. In order to reach objectives of teaching home economics according to open education a guarantee of a few more class hours is demanded. Third, in order to successfully achieve teaching/learning programs following open education, it is necessary for home economics teachers to make efforts to develop educational materials, and to engage in ongoing research and inservice training. For this to occur, measures must be taken to reduce the workload of teachers.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.13 no.2
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• pp.733-750
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• 2019

Software Defined Networking (SDN) is a new network paradigm, allowing administrators to manage networks through central controllers by separating control plane from data plane. So, one or more controllers must locate outside switches. However, this separation may cause delay problems between controllers and switches. In this paper, we therefore propose a Priority-based Scheduling policy for OpenFlow (PSO) to reduce the delay of some significant traffic. Our PSO is based on packet prioritization mechanisms in both OpenFlow switches and controllers. In addition, we have prototyped and experimented on PSO using a network simulator (ns-3). From the experimental results, PSO has demonstrated low delay for targeted traffic in the out-of-brand control network. The targeted traffic can acquire forwarding rules with lower delay under network congestion in control links (with normalized load > 0.8), comparing to traditional OpenFlow. Furthermore, PSO is helpful in the in-band control network to prioritize OpenFlow messages over data packets.

• Journal of the Korean Society of Environmental Restoration Technology
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• v.6 no.3
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• pp.46-55
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• 2003

This study aims to evaluate the Ulsan city residents' perception and satisfaction with open spaces and cityscape after consideration in the side of getting primary data for the city open spaces policy and Green Plan for Ulsan city. In this study, low data was gathered by questionnaires survey with stratified random sampling method. Questionnaires were designed by several sets of variables such as behavioral patterns, satisfactions for open spaces and user's demographic variables. Data were analyzed by descriptive statistics, cross-tabulation and regression analysis. The main results of this study can be summarized as follows : 1. In overage the residents were slightly satisfied with park open spaces. There were good and poor park open spaces. in the perceptions of citizens as follows : 'nearby mountain and open spaces', 'rail side green area' were high satisfactory, and 'riverside', 'green qualities' were low in satisfaction. 2. In overage the residents were slightly satisfied with cityscape. There were good and poor cityscape in the perceptions of citizens as follows : 'nearby forest in and open spaces', 'night scape of an urban center' were high satisfactory, and 'streetscape', 'appearances of high-rise buildings' were low in satisfaction. 3. As a results of regression analysis predictable variables for satisfaction with Park and Open spaces were : 'open spaces by the public', 'open spaces by neighbor', 'grande open spaces', 'open spaces of residence'. 4. As a results of regression analysis predictable variables for satisfaction with cityscape were : 'Central Business District(C.B.D) and nearby mountain and open spaces', 'residence and streetscape', 'riverside and park green open spaces'.

• Proceedings of the Korea Information Processing Society Conference
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• 2016.10a
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• pp.94-95
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• 2016

소프트웨어 정의 네트워킹 기술은 OpenFlow 프로토콜을 중심으로 제어평면과 전달평면의 인터페이스에 대한 연구 개발을 진행해왔다. 하지만, 새로운 헤더 포맷 또는 프로토콜에 대한 처리를 위해서는 OpenFlow Specification의 버전이 갱신되어야 하는 문제점이 있었다. 이에 대해 트래팩 처리가 특정 포맷에 한정되지 않도록 하기 위해, 네트워크 장비를 프로그래밍 하여 네트워크 관리자가 원하는 방식으로 트래픽을 처리할 수 있도록 하는 네트워크 장비 프로그래밍에 대한 연구가 활발하다. 본 논문에서는 데이터평면 프로그래밍에 대한 개략적인 연구 동향을 살펴본다.

• Analytical Science and Technology
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• v.15 no.4
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• pp.388-391
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• 2002

Rancidity of a soybean oil is investigated by an electrochmical method. The redox process of the soybean oil is totally irreversible and diffusion-controlled reaction. As scan rates are faster, the anodic peak potential of the soybean oil is shifted to the positive potential and the anodic current is increased. The anodic peak potentials of the soybean oil is not rarely changed up to open-42 days in the both atmosphere and room temperature. After the open times, the anodic peak potential is largely shifted to a negative direction. This indicates the oxidation of the soybean oil becomes easier. The anodic peak current of the soybean oil is decreased gradually up to open-42 days. But after the open times, the anodic peak current increases suddenly. It must be due to the formation of a carbonyl group owing to rancidity of the soybean oil.

• The Journal of Korean Institute of Electromagnetic Engineering and Science
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• v.18 no.2 s.117
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• pp.143-150
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• 2007

A meander slot antenna with open-end fed by a microstrip line which can be used at 400 MHz ISM band is newly proposed. The main difference between the proposed slot antenna and the previous slot antenna is the introduction of the open-end to miniaturize the previous meander slot antenna in the space restricted within narrow limit. In order to check the validity of the proposed antenna, the resonant frequency and radiation pattern of the proposed antenna have been simulated and examined. Good agreements between simulated results and measured results have been observed.

• Nuclear Engineering and Technology
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• v.52 no.5
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• pp.937-946
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• 2020

The aim in the present work is to simulate accident scenarios of AP1000 during the small-break loss-of-coolant accident (SBLOCA) and investigate the performance and behavior of automatic depressurization system (ADS) during accidents by using MIDAC (The Module In-vessel Degradation severe accident Analysis Code). Four types of accidents with different hypothetical conditions were analyzed in this study. The impact on the thermal-hydraulic of the reactor coolant system (RCS), the passive core cooling system and core degradation was researched by comparing these types. The results show that the RCS depressurization becomes faster, the core makeup tanks (CMT) and accumulators (ACC) are activated earlier and the effect of gravity water injection is more obvious along with more ADS valves open. The open of the only ADS1-3 can't stop the core degradation on the basis of the first type of the accident. The open of ADS1-3 has a great impact on the injection time of ACC and CMT. The core can remain intact for a long time and the core degradation can be prevent by the open of ADS-4. The all results are significant and meaningful to understand the performance and behavior of the ADS during the typical SBLOCA.

• Journal of the Korean Data and Information Science Society
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• v.25 no.4
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• pp.769-777
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• 2014

Recently many countries have established open government data platforms to disclose government or government controlled entities-owned data that can be freely used, reused and redistributed by anyone. Open government data can help you to make better decisions in your own life, or enable you to be more active in society. Open data is also making government more effective and transparent, which ultimately also reduces costs. This paper explains the open data concepts and circumstances in Korea, and also suggests detailed invigorating strategies such as data quality policy, data unification and standardization policy, open data service platform, and integrated support plan of big data and open government data.

• Journal of The Korean Society of Integrative Medicine
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• v.3 no.1
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• pp.71-80
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• 2015

Purpose: The purpose of this study was to compared the muscle activities of vastus medialis, vastus lateralis, rectus femoris in open kinetic chain and closed kinetic chain. Methods: Subjects of the study were 30 adults students. They were divided into 2 group, one for open kinetic chain and other for closed kinetic chain of extension, flexion, the maximum extension for vastus medialis, vastus latarealis, rectus femoris muscle activation. Results: Rectus femoris increased open kinetic chain group about all posture and vastus medialis increased open kinetic chain group about the maximum extension and flexion. and vastus lateralis increased open kinetic chain group about the maximum extension and flexion. Conclusion: Muscle activation are at the highest with the open kinetic chain in vastus medialis, vastus lateralis, rectus femoris. probably steady exercise thinked for open kinetic chain and closed kinetic chain.