• 한국전기전자재료학회논문지
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• 제21권8호
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• pp.715-718
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• 2008

An in-line wet etch/cleaning system was established for the research and development in wet etch process. The system was equipped with a reverse moving system for the reduction in the size of the in-line wet etch/cleaning system and it was possible for the glass substrate to be moved back and forth and alternated in a wet etch bath. For the comparison of the effect of the normal motion and that of the alternating motion on the in-line wet etch process, indium tin oxide(ITO) pattern was obtained through both wet etch process conditions. The results showed that the alternating motion is not inferior to the normal motion in etch rate and in etch uniformity. It is concluded that the alternating motion is possible to be applied to the in-line etch process.

• 말소리와 음성과학
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• 제6권3호
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• pp.33-40
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• 2014

The purpose of the study was to examine alternating motion rate and its variability in children with childhood apraxia of speech (CAS) compared to typically developing children. Six children with CAS aged 9-12 years old and 10 children who were age-matched participated in the study. This study measured tokens per second and variabilities of the rates during the production of /$p^*$ a/, /$t^*$ a/, and /$k^*$ a/. For variability measures of the rates, each participant was asked to repeat speech tasks three times and the average value of the rates and its standard deviation were obtained. The results revealed that the CAS group showed slower rate only at /$k^*$ a/ than the control group. The CAS group exhibited greater variability of AMR at all the tasks than the control group. The results suggested that variability of AMR might be a more distinctive speech feature to children with CAS than the rate of the speech task.

• 제어로봇시스템학회논문지
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• 제14권4호
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• pp.327-331
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• 2008

An in-line wet etch/cleaning system was established for the research and development in wet etch process as a formation of electrode such as metal or transparent conductive oxide layer. A reverse moving system was equipped in the in-line wet etch/cleaning system for the alternating motion of glass substrate in a wet etch bath of the system. Therefore, it was possible for the glass substrate to be moved back and forth and it was possible to reduce the size of the system by using the reversing moving system. For the effect of the alternating motion of substrate on the etch rate in the in-line wet etch bath, indium tin oxide(ITO) patterns were obtained through wet etch process in the in-line system in which the substrate was moved back and forth. From the CD(critical dimension) skews resulted from the ADI CD and ACI CD of the ITO patterns, it was concluded that the alternating motion of glass substrate are possible to be applied to the mass production of wet etch process.

• 국제물리치료학회지
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• 제2권2호
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• pp.339-343
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• 2011

The purpose of this study is to see the effect of functional electrical stimulation on forced vital capacity and alternating motion rate in children with spastic cerebral palsy. This study divided 20 children with spastic cerebral palsy into two groups; functional electrical stimulation treatment group and control group. Functional electrical stimulation treatment group had 20min per day treatment three times a week for four weeks and the control group did not have any treatment. Before and after intervention, this study measured forced vital capacity and alternate motion rate(/peo/,/teo/) for all children. Forced vital capacity showed statistically significant increase for the group with functional electrical stimulation(p<.05) while the control group did not show any significant increase(p>.05). Alternate motion rate showed statistically significant increase for the group with functional electrical stimulation(p<.05) while the control group did not show any significant increase(p>.05). This result shows that functional electrical stimulation affected the ability of the children with spastic cerebral palsy who have decreased breathing and phonation capability.

• PNF and Movement
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• 제16권3호
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• pp.475-484
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• 2018

Purpose: The aim of the present study was to investigate the effect of a PNF orofacial exercise program on diadochokinesis in subacute stroke patients with dysarthria. Methods: Thirteen subacute stroke inpatients with dysarthria were recruited for the study. All participants were randomly assigned to two groups: an experimental group (n=7) and a control group (n=6). The experimental group performed a PNF orofacial exercise program, and the control group carried out an orofacial self-exercise. Both groups received the treatments 30 minutes per day, 5 days per week, for 4 weeks. The outcome measures were assessed before and after the intervention, including an alternating motion rate (AMR) and sequential motion rate for diadochokinesis. Results: After the intervention, both groups showed significant improvement in diadochokinesis (p<0.05). In the change values for both groups, the experimental group showed a more significant improvement than the control group did in /pə/ of AMR (p<0.05). Conclusion: These findings suggest that PNF orofacial exercise programs may have positive effects on the improvement of diadochokinesis in subacute stroke patients with dysarthria.

• 정보저장시스템학회논문집
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• 제3권2호
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• pp.66-72
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• 2007

Surface finishing using magnetorheological (MR) fluid is useful to finish small but not too small workpieces such as those in a few millimeter scale. However, due to the high surface hardness, this finishing process does not seem to be suit for applying to a hard disk slider. In this work, a preliminary study is performed on the finishing of the hard disk slider surface with a mixture of an MR fluid and diamond powder. During a wheel type MR finishing process, centrifugal force is found to be a major factor to cause a reduction in material remove rate (MRR), which is supported by a theoretical model. To facilitate this founding, the rotational speed of tool is confined to 500rpm while a rectilinear alternating motion with the mean speed, which is equivalent to the rotational speed, is additionally applied to the workpieces. As a consequence, MRR of about 2 times of the sole rotational case is obtained. This paper shows that MR finishing process can be used to polish a hard material in millimeter scale efficiently by controlling the speeds of the tool and the workpiece.

• 한국전자통신학회논문지
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• 제12권2호
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• pp.391-400
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• 2017

본 연구의 목적은 스마트 기기를 활용한 구강안면 훈련 영상 프로그램이 마비말장애가 있는 급성 뇌졸중 환자의 구강 구조 및 기능과 조음교대운동속도에 미치는 효과를 알고자 하였다. 본 연구는 마비말장애가 있는 급성 뇌졸중 환자 14명을 대상으로 하였다. 연구에 참가한 모든 대상자들은 실험군과 대조군으로 7명씩 무작위 할당되었다. 두 그룹의 대상자들은 4주 동안 모두 동일하게 보편적인 재활치료를 받았다. 실험군은 스마트 기기를을 활용한 구강안면 훈련 영상 프로그램을 보호자의 감독 하에 추가적으로 30분씩 더 수행하였다. 구강 구조와 기능을 측정하기 위하여 조음기관 구조 및 기능선별검사의 하위항목인 구강 구조와 기능을 평가하였다. 조음교대운동속도를 측정하기 위하여 교대운동속도와 연속운동속도를 평가하였다. 연구 결과, 그룹 내 비교에서 실험군과 대조군은 구강 구조 및 기능, 교대운동속도, 연속운동속도에서 유의한 향상을 보였다(p<.05). 두 그룹 간 변화량 비교에서 실험군은 대조군보다 구강기능과 교대운동속도의 /퍼/와 /터/에서 유의한 향상을 보였다(p<.05). 스마트 기기를 활용한 구강안면 훈련 영상 프로그램은 마비말장애가 있는 급성 뇌졸중 환자의 구강 기능과 조음기관 기능에 긍정적인 효과를 기대할 수 있는 중재방법으로 사료된다.