• 전자공학회논문지
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• 제54권6호
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• pp.134-139
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• 2017

본 논문에서는 전기자전거의 정밀 토크제어를 위하여 새로운 토크제어 방식을 제안하고 구현한다. 트로틀 노이즈를 제거하기 위한 이동 평균 필터를 채택함으로써 256 단계의 세분화된 트로틀 단계로 전기자전거의 제어가 가능하다. 설계된 컨트롤러는 전기자전거에 장착 실험되어 기존의 Cadence 감지 컨트롤러 대비 개선된 선형 제어특성을 확인하였다.

• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2015년도 추계학술발표대회
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• pp.1027-1030
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• 2015

하드웨어 디자인 설계에서 초기 단계의 설계 오류 발견은 개발 비용 감소 및 설계 시간 단축 측면에서 그 효과가 매우 크다. 이러한 초기 설계 오류 발견을 위한 대표적인 방법으로는 정형 검증(formal verification)이 있으며, Cadence SMV(Symbolic Model Verifier)는 정형 검증을 위해 Verilog HDL(Hardware Description Language)을 SMV로 자동 변환 해주는 장점이 있지만, 사건 기반 구조(event based structures)의 sensitivity list에 대한 지원을 하지 않는 한계가 있다. 이에 본 논문에서는 Cadence SMV에서 디지털회로(digital circuit) 중 하나인 조합 논리회로(combinational logic circuit)를 sensitivity list가 고려된 검증이 가능하도록 하는 방법을 제안한다. 신뢰성 있는 실험을 위해 본 논문에서는 제안하는 방법의 일반적인 규칙을 도출하였고, 도출된 규칙이 적용된 SMV 파일을 생성하는 자동화 프로그램을 구현하여 실험하였다. 실험결과 제안한 방법을 적용한 경우 기존 Cadence SMV가 발견하지 못한 설계상의 오류를 발견할 수 있었다.

• 한국전문물리치료학회지
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• 제8권1호
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• pp.89-96
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• 2001

This study addresses the effects of treadmill training on hyperextended knee and cadence in patients with hemiplegia. A single subject research design with multiple baselines across individuals was used for the study. Two patients with hemiplegia participated in the experiment. The experiment consisted of interventions where the patients were asked to ambulate for 15 minutes at a comfortable walking speed on the treadmill with 11% slope grade and were allowed to rest for 10 minutes. Patients, then, were asked to ambulated 20 meters at walkway. The number of occurrences of knee hyperextension and the total number of steps were recorded. The results showed that the occurrence of knee hyperextension decreased by approximately 30% after the first session of the treadmill training and continued to gradually decrease during the following sets of treadmill training. Meanwhile, there was a slight increase in the cadence to a negligible extent. These results suggest that the gait training on the sloped treadmill may be helpful for correcting the knee hyperextension in patients with hemiplegia.

• 대한음성학회지:말소리
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• 제35_36호
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• pp.77-100
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• 1998

This research, based on the support for the existence of 'Clitic Group', proves the 'Clitic Cadence' as the solid evidence to the point that music underlies poetic rhythm in the words or poetic lines which, in turn, underly speech rhythm. Through the relation of stress-beat and clitic cadence to musical schema, such as measure, motive and period, the study clarifes the figurations of cliticization, sometimes procliticized and sometimes encliticized, even if the former appears more often than the latter. Above all, this research puts emphasis on the separate position of clitics not criticized but positioned in strong positions in music, Finally, it suggests some use of clitics to teachers and learners of English for stress-beating for rhythmization of English.

• 한국운동역학회지
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• 제25권4호
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• pp.483-488
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• 2015

Objective : The purposes of this study was to analyze the locomotive movement of forelimbs according to changes in velocities in the quadruped cadence of horses. Methods : Horses selected as subjects consisted of Jeju pony horses (heights of withers: $1.23{\pm}0.51$). Two camcorders (HDR-HC7/HDV 1080i, Sony Corp, Japan) were used to capture the movement of the horses' forelimbs at a rate of 60 frames/sec. Additionally, raw data was collected from Kwon3D XP motion analysis package ver 4.0 program (Visol, Korea) with DARTFISH (DFKREA., Korea) video software solution. The variables analyzed consisted of 1 step lengths, 1 stride lengths, stance time, swing time, 1 stride time, velocity while walking, and trot of the horses. A two-way ANOVA and paired t-test of the variables by velocity and phase were treated at .05 level of significant difference, statistically. Results : The time elapsed of walk(stance: 0.63 sec[63.86%], swing: 0.35 sec[36.14%], 1 stride time: 0.99 sec respectively) showed significant difference with more delay than that of trot(stance: 0.29 sec[45.73%], swing: 0.34 sec[54.27% ], 1 stride time: 0.63 sec respectively), and also showed significant difference at trot in interaction (stance time>tort swing>walk swing>walk stance). The 1 step lengths and stride lengths in trot showed significant difference with longer than that of walk. Velocity of Trot showed significant difference statistically with higher than that of walk Conclusion : The horses' velocity during 1 step lengths and 1 stride lengths showed a proportional relationship, but the correlation between the horses' velocity and stance time showed a negative relationship during the quadruped cadence.

• 대한물리의학회지
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• 제15권2호
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• pp.31-38
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• 2020

PURPOSE: The aim of this study is to find a more efficient intervention method through a study of the gait variables and dynamic balance of chronic neck pain patients. METHODS: Forty subjects aged between 40 and 60 years were allocated randomly to two groups; The first group performed PA (Posteroanterior Mobilization), and the second group conducted CCF (Craniocervical Flexion Exercise). The gait variability measured the speed, cadence, and dynamic balance in the forward, leftward, rightward, and rearward directions. An independent t-test, Wilcoxon signed-rank test, and paired t-test were used for statistical analysis. RESULTS: In the dynamic balance measurements, the variability of PA (p < .000) and CCF (p < .000) in the rightward direction, PA (p < .004) in leftward direction and forward direction increased significantly (p < .013). In an analysis of the gait variability, the cadence increased significantly in the PA group (p < .022) and not significantly in the CCF group (p < .056). On the other hand, there was no increase in the speed variable, in the PA group (p < .437). In the CCF group, the cadence increased significantly (p < .022). The differences in the PA and CCF group differences were not significant. CONCLUSION: The PA group showed a significant increase in the forward (p < .013), leftward (p < .004), and rightward directions (p < .000). Speed was significant in the CCF group, and cadence was significant in the PA group. The dynamic Balance was effective in the rightward direction in both groups, but there was no significant difference between the two groups.

• 대한물리의학회지
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• 제6권1호
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• pp.1-8
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• 2011

Purpose : The purpose of this study was to find out the effect of closed kinetic chain exercise with functional electrical stimulation(FES) of the gluteus medius on gait in stroke. Methods : 30 hemiplegic patients voluntarily participated in this study. Subjects were divided into experimental group(n=15) and control group(n=15). Experimental group was given closed kinetic chain exercise with FES of the gluteus medius and control group was given only closed kinetic chain exercise for 4 weeks. All subjects were measured 10m-walking speed, cadence, functional walking category(FAC) and modified motor assessment scale(MMAS) before and after intervention. Results : In experimental group, gait velocity, cadence, FAC and MMAS showed significant difference between pre and post test(p<.05). In control group, gait velocity, cadence and FAC showed significant difference between pre and post test(p<.05). Before intervention, gait velocity, cadence, FAC and MMAS were not significant difference between experimental group and control group(p>.05), but after intervention, gait velocity, FAC and MMAS were significant difference(p<.05). Conclusion : This study show that closed kinetic chain exercise with functional electrical stimulation(FES) of the gluteus medius is beneficial intervention for increase the wlking ability in stroke.

• 한국전문물리치료학회지
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• 제15권3호
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• pp.35-43
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• 2008

The purpose of this study was to compare spatio-temporal parameters during walking between patients with idiopathic Parkinson's disease and a control group matched for age, height, and weight. Thirty-three subjects were included in this study. Fifteen normal subjects (age, $63.3{\pm}5.8$ yrs; height, $164.1{\pm}8.7$ cm; weight, $60.7{\pm}17.5$ kg) and eighteen patients (age, $64.0{\pm}7.7$ yrs; height, $164.7{\pm}7.3$ cm; weight, $63.6{\pm}7.7$ kg) participated in the study. The Vicon 512 Motion analysis system was used for gait analysis in each group during walking, with and without an obstacle. The measured spatio-temporal parameters were cadence, walking speed, stride time, step time, single limb support time, double limb support time, stride length, and step length. Results in stride length and step length, when walking without an obstacle, showed a significantly greater decrease in the patient group compared to the control group. During walking with an obstacle, the patient group showed a significantly greater decrease in the step length as compared to the control group. For the control group, there were significant decreases in parameters of cadence and walking speed and increases in parameters of stride time, step time, and single limb support time when walking with an obstacle. The patient group had lower cadence and walking speed and higher stride time, step time, and single limb support time during walking with an obstacle than in walking without an obstacle. These results suggest that patients with Parkinson's disease who walk over an obstacle can decrease cadence, stride length, and step length. Further study is needed, performed with more obstacles and combined with other external cues, such as visual or acoustic guides.

• 대한물리치료과학회지
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• 제15권1호
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• pp.57-66
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• 2008

This study was conducted to investigate the effects of kinesio taping in patients with degenerative arthritis. 40 female patients with degenerative arthritis were voluntarily recruited and randomly divided into experimental and control group. Experimental group(mean age was 73.4 years, height was 153.5cm, and weight was 59.9kg) was applied patellar inferior and medial gliding, quadriceps, tibial external rotation, gastrocnemius, and soleus using a kinesio tape. And control group(mean age was 72.7 years, height was 154cm, and weight was 58.6kg) was received a interferential current therapy(ENDOMED 582, Enraf－Nonius, Holland). And we received a consent form from all subjects. Measuring was conducted by using a 3－dimensional gait analysis system for measuring of stride length, cadence, and velocity. The results were as follow: Stride length was significantly increased after than before treatment(p<.05). Cadence was significantly increased after than before treatment(p<.05). And Velocity was significantly increased after than before treatment(p<.05). Cadence was a significant difference between experimental and control group(p<.05), but there was no significant difference stride length and velocity between two groups. So we suggest that kinesio taping has a effectiveness in patients with degenerative arthritis.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2004년도 ICCAS
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• pp.879-884
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• 2004

This paper describes the development of a synthetic multi-agent called KMITL Cadence 2003. KMITL Cadence 2003 is a robotic soccer simulation team consisting of eleven autonomous software agents. Each agent operates in a physical soccer simulation model called Robocup Soccer Server which provides fully distributed and real-time multi-agent system environment. All teammates have to cooperate to achieve the common goal of winning the game. The simulation models many aspects of the football field such as noise in ball movements, noisy sensors, unreliable communication channel between teammates and actuators, limited physical abilities and restricted communication. This paper addresses the algorithm to develop the soccer agents to perform basic actions which are scoring, passing ball and blocking the opponents effectively. The result of this development is satisfactory because the successful scoring attempts is increased from 11.1% to 33.3%, successful passing ball attempts is increased from 22.08% to 63.64%, and also, successful intercepting attempts is increased from 88% to 97.73%.