• 대한통합의학회지
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• 제1권4호
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• pp.9-14
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• 2013

Purpose : The purpose of this study was to investigate the effect of visual Auditory rhythmic stimulation(VARS) in gait ability and proprioception with chronic stroke patients. Twenty-one persons after six months post stroke participated in pre test-post test control. Method : The subjects were randomly assigned to a visual Auditory rhythmic stimulation(VARS) group (n=10) and control group (n=11). Training process was practiced with exercise on thirty minutes a day, three days a week for four weeks. To find out the effect, inspected the FRT(functional reach test) by static balance and TUG(timed up and go test) by dynamic balance. Results : In static balance, FRT distance was significantly different between two group. In dynamic balance, TUG time was significantly different between two group. This study showed that the VARS training increase a balance by postural adjustment of chronic stroke patients more than control group. And so, the VARS training of hemiplegic patients was very important to successive rehabilitation. Conclusion : A continuous examination of VARS training could practical used of physical therapy with exercise.

• 한국전문물리치료학회지
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• 제16권1호
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• pp.42-51
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• 2009

The purpose of this study was to develop a checklist of risk factors for quantitative assessment of musculoskeletal complaints in shipbuilding workers. A key point was to develop comprehensive a checklist including the worker's physical ability, as ergonomic and workload factors. ln the first, through correlation analysis between musculoskeletal complaints and physical abilities in shipbuilding workers, risk factors related to physical abilities were selected. In the second, after the development of a checklist was composed of physical, ergonomic and workload factors, factor analysis was used to test the validity of the developed checklist. Each factors selected finally showed that physical factors were hand grip strength, spinal curvature, and flexibility (sit to reach), ergonomic factors were posture, total exposed time, duration, and force of working, and workload factors were physical and psychological workload perceived by worker. The results showed that musculoskeletal complaints was associated with physical abilities (p<.05). The developed checklist had a reliability of .761 (Cronbach=.761) and a validity and explanation of 54.9%. The criterion of management was classified in 4 stages by relative weights of each factor. It is suggested that active intervention is needed to reduce musculoskeletal complaints in workers with more than a 14.31 score.

• PNF and Movement
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• 제8권1호
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• pp.67-77
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• 2010

Purpose : The purpose of this study was to investigate the usefulness of clinical balance tests through the correlation of balance evaluation using by forceplate in elderly. Methods : Thirty nine healthy elderly subjects (14 males, 25 females) participated in the study. The subjects were evaluated with clinical balance tests [(Berg balance scale (BBS), Functional reach test (FRT), Tinetti's performance oriented mobility assessment (POMA), and one leg standing (OLS)]. Static balance evaluation was assessed by using forceplate. Center of pressure (COP) parameters were obtained using it as total path distance, total sway area, X mean frequency and Y mean frequency for 20 seconds in the following conditions: (1) comfortable standing with eyes opened and closed, (2) uncomfortable standing with eyes opened and closed. After static balance evaluation tested, dynamic balance evaluation was assessed. COP parameters were error distance and area during sine curve trace. COP parameters were movement time, error distance, and maintained time in the circle during COP movement task. Results : Clinical balance tests showed statistically significant correlation between static and dynamic balance evaluations. Among the clinical balance tests, the BBS, POMA, and OLS showed significant correlation with to assess the balance ability of elderly in clinical setting both evaluations. Conclusion : Clinical balance tests can be recommended in clinical setting because of low costs and simplicity.

• 대한간호학회지
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• 제28권1호
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• pp.37-46
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• 1998

Recently the concept of 'empowerment' not only attracts attention in the area of management but also is considered as an useful concept in the areas of nursing theory. practice, education, and research. The purpose of this paper is to clarify the meaning of the concept 'empowerment'. More concretely, it is to find the concept that can be applied appropriately to the area of nursing management. This study uses Walter & Avant's(1983) process of concept analysis. The attributes of empowerment based on the concept can be defined concisely as follows : 1. a dynamic and interaction process 2. a partnership which values self and others : power shaving 3. mutual decision-making using resources, opportunities, and authority 4. accept autonomy and responsibility Antecedents of empowerment consist of 1) mutual trust and respect, 2) education and support, 3) participation and commitment. In regard to the consequences of empowerment, it is expected to 1) positive self-esteem, 2) ability to set and reach goals, 3) the promotion of organization's effectiveness and productivity, 4) provide effective and high quality health-care, 5) a sense of hope for the future. The concept of empowerment is certainly believed that it will help future nurses since they needs an integrated technique that can treat acute and chronic patients' nursing, individuals, families, and communities. Therefore. it is necessary to develop the instrument including the defining attributes identified in this study. Also, it is need follow up study of this concept.

• PNF and Movement
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• 제7권4호
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• pp.37-43
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• 2009

Purpose : The purpose of this study was to evaluate the effect of core stability training at deep abdominal muscle for balance control of hemiplegic patient. Method : The subject of this study was a 47-year-old man with right hemiplegia. He was treated five times a week for three weeks with core stability training at deep abdominal muscles. Evaluation tool was used Functional reach test(FRT), timed up and go test(TUG) and one leg standing for stroke patients. Result : The FRT distance increase, TUG time decrease, one leg standing time increase core stability training at deep abdominal muscles for right hemiplegia improved was the ability for maintain balance. Posture and control of trunk stability are changing posture, and so which showed significant improve of total balance control. Conclusion : The result of this study showed that core stability training at deep abdominal muscles is an effective treatment for balance control. Therefore, it could be considered as a treatment method in the rehabilitation of stroke patient with poor postural control and imbalance, although further studies are needed.

• Journal of Microbiology
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• 제37권1호
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• pp.27-34
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• 1999

Two fractions with unusual antifungal activity that suppress asexual sporulation of several fungi were obtained from culture filtrate of Pseudomonas aeruginosa and were partially purified through the repeated silicagel flash column chromatographies. The sporulation-suppressive actions of these fractions in Aspergillus nidulans, Rhizopus stolonifer, and Coprinus cinereus, were analyzed by light and electron microscopes. The germination ability of the spores produced in the presence of these fractions were also checked to determine the persistent effects of these antifungal substances on the next generation. Light microscopic observation of developing sporangia of R. stolonifer grown in the presence of both fractions revealed that the significant number of sporangia failed to reach maturity, and frequently, uncontrolled growths of hyphae and rhizoids from the sporangiophores were found. In A. nidulans addition of these fractions appeared to cause different classes of morphological abnormality in conidia development, which included aborted formation of conidiogenous cells from the apex of conidiophores and enhanced hyphal growths either at the tip or middle of the conidiophores. Germination abilities of spores obtained from the cultures grown in the presence of antifungal fractions were 40∼60% in Aspergillus, 50∼80% in Coprinus (thallic spores), and 30∼40% in Rhizopus compared to those of normal spores.

• Journal of Power Electronics
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• 제17권3호
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• pp.579-589
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• 2017

In this study a new high step-up dc-dc converter is presented. The operation of the proposed converter is based on the capacitor switching and coupled inductor with a single active power switch in its structure. A passive voltage clamp circuit with two capacitors and two diodes is used in the proposed converter for elevating the converter's voltage gain with the recovered energy of the leakage inductor, and for lowering the voltage stress on the power switch. A switch with a low $R_{DS}$ (on) can be adopted to reduce conduction losses. In the generalized mode of the proposed converter, to reach a desired voltage gain, capacitor stages with parallel charge and series discharge techniques are extended from both sides of secondary side of the coupled inductor. The proposed converter has the ability to alleviate the reverse recovery problem of diodes with circuit parameters. The operating principle and steady-states analyses are discussed in detail. A 40W prototype of the proposed converter is implemented in the laboratory to verify its operation.

• International Journal of Fuzzy Logic and Intelligent Systems
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• 제12권3호
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• pp.238-244
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• 2012

A modeling of vision based robot formation control system using fuzzy logic controller and extended Kalman filter is presented in this paper. The main problems affecting formation controls using fuzzy logic controller and vision based robots are: a robot's position in a formation need to be maintained, how to develop the membership function in order to obtain the optimal fuzzy system control that has the ability to do the formation control and the noise coming from camera process changes the position of references view. In order to handle these problems, we propose a fuzzy logic controller system equipped with a dynamic output membership function that controls the speed of the robot wheels to handle the maintenance position in formation. The output membership function changes over time based on changes in input at time t-1 to t. The noises appearing in image processing change the virtual target point positions are handled by Extended Kalman filter. The virtual target positions are established in order to define the formations. The virtual target point positions can be changed at any time in accordance with the desired formation. These algorithms have been validated through simulation. The simulations confirm that the follower robots reach their target point in a short time and are able to maintain their position in the formation although the noises change the target point positions.

• 화훼연구
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• 제16권4호
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• pp.309-312
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• 2008

적색계 접목선인장 'Red King'은 'Black Ruby'등 기존 진적색 계통의 결점인 구색의 퇴색을 보완하고자 경기도농업기술원 선인장연구소에서 육성되었다. 2005년 'Red Jewelry' ${\times}$ 'GG024824' 조합에서 135개체를 기내 선발하고 후대양성 하였으며 최종 선발된 1계통을 3차에 걸쳐 특정검정한 후 'GG0511144'을 육성하였다. 'GG0511144'는 2007년 농촌진흥청 직무육성 신품종 선정위원회에서 'Red King'으로 명명되었으며, 'Red King'의 구색은 진한 적색이고 구의 형태는 편원형이다. 8~9개의 능을 가지며, 가시는 연갈색으로 반직립이다. 자구수가 14.6개이며, 구경 증가량은 36.8 mm로 증식력이 우수하다.

• 화훼연구
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• 제16권4호
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• pp.313-316
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• 2008

황색계 접목선인장 'Yellow King'은 기존 황색 계통의 결점인 구색의 퇴색, 접목활착율 저하, 조직의 견고성 부족 등을 보완하고자 경기도농업기술원 선인장연구소에서 육성되었다. 2005년 'GG0214319' ${\times}$ 'GG021295' 조합에서 209개체를 선발하고 후대양성 하였으며 최종 선발된 1계통을 3차에 걸쳐 특성검정한 후 'GG05176240'을 육성하였다. 'GG05176240'은 2007년 농촌진흥청 직무육성 신품종 선정위원회에서 'Yellow King'으로 명명되었으며, 'Yellow King'의 구색과 자구의 색은 황색이고 구의 형태는 원형이다. 8~9개의 능을 가지며, 가시는 갈색으로 반 직립한다. 자구수가 12.4개이며, 구경 증가량은 34.1 mm로 증식력이 우수하다.