• The Journal of Korean Physical Therapy
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• 제24권5호
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• pp.291-299
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• 2012

Purpose: This study examined the improved sensory, hand function, postural balance and activities of daily living (ADL) through somatosensory stimulation, such as the facilitation of functional reaching and tactile, proprioceptive stimulus of the upper limb (UL) and hand. Methods: Seventeen stroke patients having problems with motor and somatosensory deficits were selected in Bobath Memorial Hospital adult rehabilitation center. The patients were divided into two groups; the sensorimotor deficit group (SMDG) and motor deficit group (MDG). Somatosensory stimulation on the UL, physical therapy and occupational therapy were carried out three times a week over a six week these treatments were performed in both group period. To compare each group, the following assessment tools were used: such as tactile detection thresholds (TDT), two point discrimination on the affected side (TPDas), unaffected side (TPDus) stereognosis (ST) manual function test, hand function on the affected side (HFas) and unaffected side (HFus), Postural Assessment Scale for Stroke (PASS) and Korean version Modified Barthel Index (K-MBI). Results: In the SMDG, somatosensory stimulation on the UL was statistically important for TDT, TPDas, TPDus (except for the thener), ST, hand function on HFas, on HFus, PASS length of displacement with foam (LDFSEO), and K-MBI. In the MDG, somatosensory stimulation on the UL was important for TDT, TPDas, TPDus (except index finger) length of displacement with the eyes open, LDFSEO, HFas, HFus, PASS and K-MBI. In addition, there was a significant difference in the PASS between SMDG and MDG. Conclusion: Somatosensory stimulation on the UL affects the sensory, hand function, postural control and ADLs performance.

• Journal of Plant Biotechnology
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• 제39권1호
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• pp.49-61
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• 2012

This review summarises the biology, discovery and applications of single nucleotide polymorphisms in complex polyploid crop genomes, with a focus on the important oilseed crop $Brassica$ $napus$. $Brassica$ $napus$ is an allotetraploid species, and along with soybean and oil palm is one of the top three most important oilseed crops globally. Current efforts are well underway to $de$ $novo$ assemble the $B.$ $napus$ genome, following the release of the related $B.$ $rapa$ 'A' genome last year. The next generation of genome sequencing, SNP discovery and analysis pipelines, and the associated challenges for this work in $B.$ $napus$, will be addressed. The biological applications of SNP technology for both evolutionary and molecular geneticists as well as plant breeders and industry are far-reaching, and will be invaluable to our understanding and advancement of the $Brassica$ crop species.

• 한국재료학회지
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• 제22권3호
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• pp.140-144
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• 2012

Compared with bulk material, quantum dots have received increasing attention due to their fascinating physical properties, including optical and electronic properties, which are due to the quantum confinement effect. Especially, Luminescent CdSe quantum dots have been highly investigated due to their tunable size-dependent photoluminescence across the visible spectrum. They are of great interest for technical applications such as light-emitting devices, lasers, and fluorescent labels. In particular, quantum dot-based light-emitting diodes emit high luminance. Quantum dots have very high luminescence properties because of their absorption coefficient and quantum efficiency, which are higher than those of typical dyes. CdSe quantum dots were synthesized as a function of the synthesis time and synthesis temperature. The photoluminescence properties were found strongly to depend on the reaction time and the temperature due to the core size changing. It was also observed that the photoluminescence intensity is decreased with the synthesis time due to the temperature dependence of the band gap. The wavelength of the synthesized quantum dots was about 550-700 nm and the intensity of the photoluminescence increased about 22~70%. After the CdSe quantum dots were synthesized, the particles were found to have grown until reaching a saturated concentration as time increased. Red shift occurred because of the particle growth. The microstructure and phase developments were measured by transmission electron microscopy (TEM) and X-ray diffractometry (XRD), respectively.

• 대한물리의학회지
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• 제11권1호
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• pp.11-21
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• 2016

PURPOSE: This study was examined the effects of aerobic exercise using a step box and lower extremity strengthening exercise with an elastic band on the balance ability and lower extremity muscular strength in elderly subjects. METHODS: Forty-one healthy adults were randomly divided into experimental group 1 (Exp 1, n=14), experimental group 2 (Exp 2, n=14), and a control group (n=13). The Exp 1 conducted lower limb strengthening exercise using an elastic band and the Exp 2 performed aerobic exercise with a step box 50 minutes per day, twice per week, for eight weeks. RESULTS: There was significant increase in the Exp 1 and Exp 2 in comparison of the change of lower limb muscle strength according to measurement time (p<.05). But there was no significant difference according to intervention methods. In one-leg standing test change among the three groups after the intervention, the Exp 1 and Exp 2 saw significant improvement compared to the control group (p<.05) but there was no significant difference according to intervention methods. The change of the functional reaching test results, the Exp 1 and Exp 2 saw significant improvement according to the time of measurement. In the change of the Timed Up and Go test, there was significant improvement in the Exp 1 and Exp 2 compared to the control group (p<.01), but there was no significant difference according to intervention methods. CONCLUSION: Exercise to lower extremity strengthening program accompanied with aerobic exercise is considered more effective in dynamical balance and ability to walk.

• 한국콘텐츠학회논문지
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• 제12권3호
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• pp.222-232
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• 2012

본 연구는 슬관절 전치환술을 시행하고 난 후 3주 이내의 환자 24명에게 과제 지향 훈련과 체중 이동 훈련이 정적 균형과 동적 균형에 어떠한 영향을 미치는지 알아보기 위해서 실시하였다. 대상자는 과제 지향 훈련군(실험군) 12명과 체중 이동 훈련군(대조군) 12명을 2그룹으로 무작위 배정하였다. 각 군의 운동 효과를 알아보기 위하여 Gaitview 시스템과 기능적 팔 뻗기 검사를 통해 정적 균형을 측정하였고, Balance 시스템을 이용하여 동적 균형을 측정하였다. 통계 분석은 실험 전과 후의 차이를 알아보기 위하여 대응표본 t검정을 실시하였고, 그룹 간 차이를 알아보기 위하여 독립표본 t검정을 실시하였다. 그 결과 과제 지향 훈련군이 체중 이동 훈련군에 비해 정적, 동적 균형 능력에 유의한 차이를 보였다(p<0.05). 따라서 이번 연구 결과를 통해 슬관절 전치환술을 시행한 조기 환자들에게 과제 지향 훈련이 균형 능력에 효과적이라는 것을 알 수 있었다.

• Physical Therapy Rehabilitation Science
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• 제4권2호
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• pp.66-72
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• 2015

Objective: The aim of this study was to investigate the effect of balance training with plantar flexor stretching on ankle dorsi flexion range of motion (ROM), balance, and gait ability in stroke patients. Design: A randomized controlled pilot trial. Methods: Thirty stroke patients volunteered to participate in this study. The subjects were randomly allocated to two groups: the experimental group (n=15) received the neurodevelopment therapy plus balance training with plantar flexor stretching for 20 minutes in one session. The control group (n=15) received the same neurodevelopment therapy plus plantar flexor static stretching for 20 minutes in one session. Both groups underwent sessions four times a week, for a total of 4 weeks. Measurements included passive range of motion (PROM), active range of motion (AROM) of ankle dorsiflexion using a goniometer, timed up and go (TUG), the functional reaching test (FRT), and the 10 m walk test (10 MWT). Results: There were significant improvements in AROM and PROM of ankle dorsiflexion, TUG, and FRT scores after the intervention in the experimental group (p<0.05). However, the control group showed no statistically significant differences except for PROM of ankle dorsiflexion. The experimental group showed a significant improvement in PROM, TUG, and FRT scores compared to the control group (p<0.05). Conclusions: Balance training with plantar flexor stretching improves ankle dorsiflexion ROM and balance ability in patients with stroke. Therefore, this therapeutic intervention will be effective for rehabilitation of stroke patients in the clinical setting.

• 디지털융복합연구
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• 제12권7호
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• pp.297-304
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• 2014

본 연구는 가정운동프로그램이 뇌졸중 환자의 균형능력회복에 미치는 효과를 알아보기 위하여 실시하였다. 본 연구는 2013년 9월에서 2013년 12월까지 실시하였으며, 대상자는 총 20명으로 일반적인 통원 물리치료를 실시한 조군 10명, 일반적인 통원 물리치료를 실시하고 추가적으로 가정운동프로그램을 실시한 운동군 10명으로 나누어 배정하였다. 가정운동프로그램은 신경계 물리치료사가 대상자 집을 방문하여 8주동안 주 2회씩 매회 30분간 시행하였으며 체중이동훈련, 지구력훈련, 운동재훈련, 감각재훈련, 하지운동으로 구성되었다. 균형능력을 평가하기 위하여 Biorescu를 이용하여 족저압, 안정성한계, 동요속도를 측정하였고 임상적인 측정방법 중 하나인 기능적 팔뻗기 검사를 실시하였다. 연구결과 대조군과 운동군은 안정성한계, 동요속도, 기능적 팔뻗기 검사에서 유의한 차이가 나타났다. 본 연구는 가정운동프로그램이 뇌졸중 환자의 균형회복을 회복하는데 효과적인 치료전략 중 하나라는 것을 나타낸다.

• Korean Chemical Engineering Research
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• 제43권4호
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• pp.439-451
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• 2005

수소저장기술은 수소경제를 달성하기 위해 개발해야할 핵심요소기술이다. 이 논문에서는 고체수소저장기술의 최신 개발 동향을 고찰하였다. 나노구조 탄소계 물질(nanostructured carbon materials), 유기금속구조물(metal organic framework, MOFs), 금속수소화물(metal hydrides), 클래스레이트수화물(clathrate hydrates), 금속착수소화물(complex chemical hydrides)과 같은 고체수소저장매체를 중점적으로 고찰하였다. 그 결과 지금까지 개발된 고체수소저장재료의 수소저장용량은 고체의 표면적에 비례하여 증가함을 알 수 있었다. 또한 수송용 탑재형 수소저장 응용을 목적으로 안전하면서도 가역적 고밀도 수소저장이 가능한 기능성 신 나노재료의 개발 방향을 제시하였다.

• 대한기계학회논문집A
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• 제35권5호
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• pp.459-467
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• 2011

상지 운동기능 장애인의 재활치료에 대한 지속적인 관심과 훈련의 정량적인 평가가 요구되고 있다. 이러한 문제를 해결하기 위해서 햅틱 장치를 개발했다. 피험자가 햅틱 장치의 손잡이를 움직일 때, 가상의 힘을 제시하여 그들의 동작에 대해 어시스트력이나 항력을 제시할 수 있다. 개발한 상지 운동훈련 프로그램과 시스템의 유효성을 검토하기 위해, 5 명의 운동기능 장애인을 대상으로 직선동작 훈련 프로그램을 수행할 때의 손잡이 위치, 수행 속도, 손잡이의 오차 및 상지의 EMG 신호를 측정하였다. 5 명의 피험자의 손잡이의 궤적 및 EMG 활동이 유사함을 보였다. 이러한 결과는 가상 현실의 힘을 손잡이에 제시함으로써 EMG 활동이 증가하였다고 볼 수 있다. 본 실험의 결과, 객관적이며 정량적인 상지 재활치료 시스템의 개발 및 평가 방법이 시사되었다.

• 대한인간공학회지
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• 제29권4호
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• pp.595-604
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• 2010

Reaching up the present from the past, the design was reflected in our life, thereby having brought about great development in the aesthetic harmony or functional part. In the present era, it is advancing in order to seek for the better direction without being satisfied with formativeness. What comes to represent it is UX design, namely, user-experience design. If a user has confusion in using product or environmental facilities, or if a user needs to utilize by analyzing function, this cannot help being inconvenient. Only what a user's behavior is caused by which the cognitive and sensitive attributes interact without inconvenience can be said to be design for a user. Given explaining easily, UX implies to design and develop the designed product or space from the position of a client who uses. Also, it also implies to offer service of being satisfied. For one example, a work can be said that distributes logo to the upper part of web site. That is because of allowing client to be much confused if logo is distributed to the different position. The designed web site in consideration of user's position is developed much now. However, it is the real situation of being still much insufficient in the public facilities that have UX characteristics amid the living environment. There is great interest in UX of the public facilities. However, there are many cases of facing mostly for the first time. The understanding level is thought to be much different. This study examines about a concept of UX design, and about UX design, which considered from the user's position, and analyzes a case. Thus, the aim is to suggest good directivity in designing by efficiently approaching UX that can be difficult theoretically.