• 한국전문물리치료학회지
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• 제7권3호
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• pp.72-80
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• 2000

This study was to investigate the effects of a functional electrical stimulation (FES) on temporal parameters (stride length, step width and cadence) of gait patterns in a patient with right hemiparesis. A single-subject reversal (ABAB) design was used. The subject was a 25-year-old male who had foot drop and circumduction gait pattern. An ink foot-print method was used to assess the temporal parameters of gait between the baseline phase and the intervention phase. FES was applied at 8 m walkway, three times a week for 5 weeks. The results showed that stride length was increased by 4.04 cm and that step width was decreased by 3.93 cm in the intervention phase. There was no difference in cadence between the baseline phase and intervention phase.

• 천문학회보
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• 제40권1호
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• pp.79.1-79.1
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• 2015

We describe our ongoing project, Intensive Monitoring Survey of Nearby Galaxies. This survey is designed to study transients such as Supernovae (SNe) in nearby galaxies. Our targets are UV-bright (MUV < -18.4) and nearby (d < 50 Mpc) 50 galaxies selected from a GALEX catalog, whose star formation rates are larger than normal galaxies. High star formation in these galaxies ensures that core-collapse supernova explosions occur more frequently in them than normal galaxies. By monitoring them with a short cadence of a few hours, we expect to discover 5 SNe/yr events. Most importantly, we hope to construct very early light curves in rising phase for some of them, which enables us to understand better the physical properties of progenitor star and the explosion mechanism. To enable such a high cadence observation, we constructed a world wide telescope network covering northern, southern hemisphere distributed over a wide range of longitudes (Korea, US, Australia, Uzbekistan and Spain). Data reduction pipe line, detection and classification algorithms are being developed for an efficient processing of the data. Using the network of telescopes, we expect to reach observe not only SNe but also other transients like GRBs, Asteroid, variable AGNs and gravitaional wave optical counter part.

• PNF and Movement
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• 제16권2호
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• pp.179-185
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• 2018

Purpose: This study aimed to analyze the visual and spatial elements of the gait of a stroke patient who had diverse ankle weight loads applied, according to weight changes. Methods: The subject was a 57-year-old stroke patient diagnosed and hospitalized with a left intracerebral hemorrhage. A weight equivalent to 0%, 1%, and 2% of his body weight was applied to the area 5cm upward from the ankle using a Velcro strap. He was then trained on a treadmill, receiving a six-minute walk test to evaluate his gait ability. A gait analyzer was used to collect visual and spatial elements, such as gait distance, gait velocity, cadence, step length, stride length, and swing phase, according to a weight load equivalent to 0%, 1%, and 2% of his body weight. Results: According to the results of applying 0%, 1%, and 2% of his body weight on the ankle, except for gait velocity, his gait distance, cadence, step length, stride length, and swing phase were higher when 1% of his body weight was applied compared to 0% or 2% of his body weight. Conclusion: Applying a weight equivalent to 1% of the body weight to the ankle positively affected the visual and spatial element of the gait and heightened the efficiency of exercise during treadmill training, a gait-training tool generally used for stroke patients. However, the result is difficult to generalize because the number of subjects was small with only one subject.

• Journal of Korean Biological Nursing Science
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• 제20권3호
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• pp.141-149
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• 2018

Purpose: This study was conducted to examine the effects walking program with dance on gait, cognition, and risk of falls of elderly with dementia in a long-term care hospital. Methods: Subjects consisted of 42 elderly with dementia in a long-term care hospital (21 elderly with dementia in an experimental group and 21 elders with dementia in a control group). Data were collected from March 14 to April 30, 2016. Subjects in the experimental group performed walking program with dance (three times a week, 30-50 minutes session, 18 sessions). Data were analyzed using descriptive statistics, Chi-square test, Fisher's exact test, independent t-test, paired t-test, repeated measures ANOVA with the SPSS/WIN 21.0. Results: The participants in the experimental group showed significantly increased scores of cadence (F= 8.36, p= .007) and improved scores of cognition (F= 9.95, p= .003) compared the control group. Conclusion: The findings indicate walking program with dance is recommend a regular exercise program to enhance the cadence associated with walking speed and cognitive function elderly.

• 한국정보통신학회논문지
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• 제15권12호
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• pp.2632-2640
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• 2011

본 논문은 다수의 프로세싱 유닛의 데이터 처리할 수 있는 메모리 제어기를 설계하였다. 메모리 제어기는 마스터 중재기에 의해 마스터들의 요구 신호를 받아 순서에 맞추어서 데이터 충돌 없이 메모리에 전송하는 역할을 한다. 구현된 메모리 제어기는 마스터 인터페이스, 마스터 중재기, 메모리 인터페이스, 메모리 가속기로 구성된다. 제안한 메모리 제어기는 VHDL을 이용하여 설계하였고, 삼성의 메모리 모델을 이용하여 동작을 검증하였다. FPGA 합성 및 검증을 위해서는 ATERA사의 Quartus II를 이용하였고, 구현된 하드웨어는 Cyclone II 칩을 사용하였다. 시뮬레이션을 위해서는 Cadence사의 ModelSim을 이용하였다.

• 대한한의학회지
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• 제33권1호
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• pp.148-159
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• 2012

Objectives: This study investigated the correlation among Postural Assessment Scale for Stroke (PASS), Timed "Up and Go" Test (TUG) and gait (velocity, cadence, step-length, stride-length and single-limb support). Methods: The 70 subjects were assessed on trunk control measured with the use of the PASS, dynamic balance (TUG) and gait function (by GAITRite). The data were analyzed using Pearson product correlation. Results: The PASS total scores were significantly correlated with PASS-M, PASS-C, and PASS-T (r =.80 ~ .88 p<.01). All items of the PASS were significantly correlated with TUG (r = -.63 ~ -.81 p<.01), velocity (r = .44~.58 p<.01), cadence (r =.38 ~.51. p<.01), affected side step length (r = .44 ~.56 p<.01) and affected side stride length (r = .45 ~.59 p<.01). But affected side single-limb support was lowly correlated with PASS-M, PASS-C, PASS-T and PASS-total (r = .25~.36 p<.05). Conclusions: Measures of trunk control were significantly related with values of dynamic balance and gait. Based on these results, trunk control is an essential core component of balance and gait. Trunk control training programs after stroke should be developed and emphasized.

• 대한물리의학회지
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• 제7권1호
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• pp.21-28
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• 2012

Purpose : The purpose of this study was to examine the gait parameter and plantar foot pressure of adults with Down syndrome(DS) during walking in order to provide data for developing evidence-based deficit or common rehabilitation strategies. Method : 15 participants with DS(12 men, 3 women; age $26.06{\pm}4.47$) and 15 healthy subjects(12 men, 3 women; age $25.33{\pm}3.43$) were matched age. They walked at self selected speeds on a GAITRite system and RS-scan system, and had the following measurements done: cadence, stride length, step width, foot angle, percent stance, percent double support, and plantar foot pressure in 10 areas of the foot. Results : In comparison of gait parameter(cadence, stride length, step width, foot angle, percent stance, and percent double support) between adults with DS and healthy subjects, there was significant differences(p<.05). Regarding plantar foot pressure during gait with or without DS, there were statisically significant differences in the area of Toes 1-5, Metatasal 1-4, Midfoot, and Heel(Medial and lateral)(p<.05). Conclusion : Our data show that DS walk with a less physiolosical gait pattern and plantar foot pressure than healthy subjects. Based on our results, DS patients need targeted rehabilitation and exercise strategies.

• 한국멀티미디어학회논문지
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• 제1권2호
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• pp.154-161
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• 1998

본 연구에서는 영상 데이터를 실시간으로 처리하기 위해 병렬처리기 및 병렬 기억장치 구조를 제안하였으며, 많은 영상 데이터 중에서 문화재 영상을 대상으로 하였다. 기존의 영상 인식 및 검색 알고리즘은 병렬화하기에 적합하지 않아서 병렬화 가능한 알고리즘을 제안하였고, 제안된 알고리즘을 부분적으로 병렬화하고, 적합한 병렬 기억장치 및 병렬처리기 구조를 제안한 다음 CADENCE사의 모의실험 패키지인 Verilog-XL을 이용해서 모의실험 하였다. 그 결과 81배의 속도향상을 볼 수 있었다.

• 한국전문물리치료학회지
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• 제19권4호
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• pp.16-23
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• 2012

This study examined the effects of custom-made foot orthotics on the temporal-spatial gait parameters in children with cerebral palsy. Twenty spastic bilateral cerebral palsy (spastic CP) children (11 boys and 9 girls) participated in this study. GAITRite was used to examine the velocity, cadence, step length differential, step length, stride length, stance time, single support time, double support time, base of support, and toe angle while walking with and without foot orthotics. The differences in temporal-spatial parameters were analyzed using paired t-test. The significance level was set at .05. The velocity, cadence, both step lengths, both stride lengths, both bases of support and right toe angle significantly increased when the children with spastic CP with foot orthotics compared to without foot orthotics (p<.05). The step length differential between the two extremities, left stance time and left single support time, significantly decreased with foot orthotics (p<.05). Right stance time, right single support time, both double support times and left toe angle showed little change (p>.05). This study demonstrated that foot orthotics were beneficial for children with spastic CP as a gait assistance tool.

• 한국정보통신학회논문지
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• 제16권2호
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• pp.319-324
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• 2012

본 논문에서는 개선된 charge pump 회로를 이용하여 구성한 2-dimensional 터치스크린 패널 드라이버를 소개한다. 개선된 전정 센싱 회로는 charge pump 회로의 중간노드 전하 축적을 제거하여 출력 전압 표류 현상을 효과적으로 없앤다. 터치 패널 드라이버는 터치를 감지하는 아날로그 센싱 부분과 감지된 신호를 처리하는 디지털 신호 처리 부분으로 이루어진다. 제안된 터치스크린 드라이버의 동작을 확인하기 위하여 혼성 모드로 회로를 구성하고 Cadence Spectre를 이용하여 그 동작을 검증하였다. 디지털 회로 부분은 Verilog-A로 모델링하여 아날로그 회로와 인터페이스가 가능하게 하여 전체 회로 동작을 검증함으로써 혼성모드 회로 동작의 신뢰성을 확보하였고 시뮬레이션 시간을 단축할 수 있었다. 시뮬레이션 결과 개선된 전정 센싱 회로를 이용한 제안된 구조의 터치 패널 드라이버의 안정적인 동작을 확인하였다.