• 한국염색가공학회지
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• 제28권4호
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• pp.253-270
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• 2016

In the wool textile industry, the necessity for technology development has been steadily raised to create improved fineness and yarn count of existing wool yarns with thick fineness for ensuring higher quality grades of wool yarn. Recently, through controlling fineness of wool yarn for making finer wool in relation with environmentally-friendly and high-sensitivity trend, a differentiated continuous drawing process where the quality of wool can be artificially manipulated has been suggested in the latest textile industry. This study investigated the basic conditions during the continuous drawing process which enable to manufacture wool yarn with fine count by controlling reducing agent treatment, physical drawing and drying after reducing agent treatment, and oxidizing agent post-treatment conditions. Furthermore, this study reviewed the drawing effects by applying the basic conditions for reduction and oxidation reaction in the drawing processes of wool/cashmere, wool/silk, wool/polyester blended yarns as well as such wool yarns. Also, in order to review the practicability, this study examined the physical properties and dyeability of drawn wool yarn applied textile materials in comparison with normal wool yarn applied textile materials.

• The Journal of Korean Physical Therapy
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• 제28권1호
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• pp.1-7
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• 2016

Purpose: The aim of this study was to evaluate the effect of Bridge exercise with abdominal drawing-in on static and dynamic balance in patients with stroke. Methods: Forty patients with stroke participated in this study. Participation was randomly assigned to the Bridge exercise group (n=20) and the Bridge exercise with abdominal drawing-in group (n=20). A bio-feedback device was used when patients performed the Bridge exercise with abdominal drawing-in. This training was performed without any motion on the patient's spine and upper belly part, and the pressure was held with the biofeedback device as 40-70 mmHg. Both groups received training 30 minutes per day, three times per week, for four weeks. Weight bearing, anterior limit of stability, and posterior limit of stability for static balance ability were measured, and Berg balance scale (BBS), Timed up and go test (TUG) for dynamic balance ability were also measured. Results: Participants showed significant differences between pre- and post-mediation in terms of weight bearing, anterior limit of stability, posterior limit of stability, Berg balance scale, and Timed up and go test (p<0.05). The Bridge exercise with abdominal drawing-in group showed a more significant increase (p<0.05). Conclusion: According to the results of this study, both exercises were effective for improving the static and dynamic balance ability. However we suggest that the Bridge exercise with abdominal drawing-in is more efficient for increasing balance ability in patients with stroke.

• 한국CDE학회논문집
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• 제4권1호
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• pp.19-31
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• 1999

One of the non-photorealistic rendering method, a drawing technique which uses only fine curves and dashed line, is widely employed in an knots and post stamps printing. Engraving of the curves and lines are traditionally performed by human engravers which leads to low productivity in printing preparation. As an effort to improve productivity and quality, a drawing automation method which can easily produce a portrait composed of vector data for laser or chemical engraving is proposed. The method shows that it is possible to draw a portrait by controling the width and length of predefined fine lines according to the gray scales a the end points of each fine lines. A gradually controled weighting factor method is proposed in addition to the author previous works to prevent undesirable boundaries in an identical texture region. User interface functions of a commercial CAD system are heavily employed to exploit the presented method.

• PNF and Movement
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• 제17권1호
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• pp.19-29
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• 2019

Purpose: This study was an investigation of the effects of the bridge exercise with the sensory feedback of combined abdominal drawing-in on transverse abdominal and balance in patients with stroke. Methods: Forty subjects were randomly assigned into two groups. Subjects in the bridge exercise group (BG, n = 20) or feedback drawing-in bridge exercise group (FDBG, n = 20) were studied for 30 minutes each, twice daily, for four weeks. Outcomes were measured using affected weight distribution (AWD), anterior limit of stability (ALOS), posterior limit of stability (PLOS), timed up-and-go test (TUG), the Berg balance scale (BBS), and transverse abdominis thickness (TRA) before and after the four-week intervention period. Results: There were significant effects in the FDBG pre-intervention and post-intervention in AWD, ALOS, PLOS, TUG, BBS, and TRA. Conclusion: The results of this study suggest that the bridge exercise with sensory feedback combined with abdominal drawing-in could be beneficial for patients with stroke in terms of transverse abdominal and balance.

• 대한정형도수물리치료학회지
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• 제27권3호
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• pp.79-87
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• 2021

Objective: To compare the effects of lumbar dysfunction and balance when office workers with chronic back pain performed the abdominal drawing-in maneuver. Methods: A total of 16 office workers with chronic low back pain were included in this study. The participants were randomly divided into two groups: the general and abdominal drawing-in maneuver groups. The intervention was applied for 6 weeks, 3 times a week, 70 min per day. Participants in the general exercise group(n=8) performed the general physical therapy and lumbar flexibility exercise, whereas those in the abdominal drawing-in maneuver group(n=8) performed the general physical therapy and lumbar stabilization exercise using abdominal drawing-in maneuver(3 times/week for 6 weeks). All tests, were the Korean Oswestry disability index (KODI) and balance ability, were completed pre and post-intervention. Results: Significant improvements in the KODI and balance ability test were observed in the abdominal drawing-in exercise group (p<.05), whereas no significant changes (p>.05) were observed in the general exercise group. Conclusion: This study revealed that abdominal drawing-in maneuver can effectively improve the lumbar dysfunction and balance ability of office workers with chronic back pain.

• 지역사회간호학회지
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• 제28권2호
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• pp.196-205
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• 2017

Purpose: Art program has been found to enhance mood such as increasing motivation, self-expression and decreasing depression in older adults. This study was conducted to investigate the effects of clay art and drawing on depression and self-expression among elderly people at a long-term care center. Methods: The research was a pre-test and post-test non-equivalent design. Sixty older patients (clay art program=28. Drawing art program=32) over the age of 65 were recruited from 2 long-term care hospitals to participate in the 5 weeks program. Each group was scheduled with 10,120-minute evaluation sessions, twice per week. Test measures were completed before and after the 5 week intervention period for all participants. The data was collected from April 27 to May 29, 2015. It was analyzed with SPSS 22.0 using chi-square, t-test and paired t-test. Results: There were no significant difference in the levels of depression (t=0.21, p=.830) and total score of self-expression (t=-0.10, p=.919) between the two groups. However, the pre-post scores of self-expression in the clay art program (t=0.22, p=.826) were improved compared to the drawing art program (t=0.80, p=.430). Conclusion: Further studies are needed to evaluate the effectiveness of clay art program for extended senior care applications.

• 연구논문집
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• 통권23호
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• pp.155-164
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• 1993

A drawing technique which use only fine curves and dashed lines is widely adopted in banknotes and post stamps printing. Engraving of the curves and lines are traditionally performed by hand skill which provides low productivity in printing. As an effort for higher productivity and quality, a drawing automation method which can easily produce NC codes and drawings for a mechanical or chemical engraving is proposed. An initial work shows that it is possible to draw a portrait by contolling the width and length of predetermined fine lines according to the gray scale at the end points of each line. User interface functions of a commercial CAD system are heavily employed to exploit the presented method.

• 한국과학교육학회지
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• 제26권4호
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• pp.510-517
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• 2006

이 연구에서는 화학 개념 학습에서 학생들에게 제공되는 다양한 외적 표상들 간의 연계와 통합을 촉진하는 방안으로서의 그리기에 미치는 상황 흥미, 주의 집중, 인지적 노력의 영향을 조사하였다. 2개 남녀공학 중학교 1학년 178명을 대상으로 '보일의 법칙'과 '샤를의 법칙'에 대해 2차시 동안 그리기를 활용한 수업을 실시하였다. 학생들은 거시적인 현상을 시범 실험을 통해 관찰한 후, 제공된 언어적 정보에 대한 자신의 정신 모형을 그림으로 그리고 이를 시각적 정보와 비교하였다. 사후 검사로 상황 흥미, 주의집중, 인지적 노력, 개념 이해도 검사를 실시하였다. 연구 결과, 상황 흥미는 주의집중에 직접적인 영향을 주고, 주의집중은 직접적으로 또는 인지적 노력을 경유하여 개념 이해도에 긍정적인 영향을 주는 것으로 나타났다. 이런 결과는 그리기에서 처음으로 유발되는 것은 상황 흥미이며, 주의집중과 인지적 노력이 그리기를 통한 개념 이해에 직접적인 영향을 주는 요인일 수 있음을 시사한다. 이에 대한 교육적 함의를 논의하였다.

• 한국CDE학회논문집
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• 제7권1호
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• pp.9-17
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• 2002

The study is insufficient on process planning of the elliptical deep drawing product. Thus, in this present study, the expert system for elliptical deep drawing products was constructed by using process sequence design. The expert system was developed to be based on the general concept of each entity. The system was developed in this work consists of sixth modules. The first one is a shape recognition module to recognize non-axisymmetric products and to generate Entity_list. The second one is three dimensional (3-D) modeling module to calculate the surface area for non-axisymmetric products. The third one is a blank design module to create suggested blanks of three shapes with the identical surface area. The fourth one is shape design module based on the production rules that play the most important role in an expert system for manufacturing. The production rules are generated and upgraded by inter- viewing field engineers, plastic theory and experiments. The fifth and sixth ones are a graphic module to visualize results of the expert system and a post module to rise user's convenience, respectively. According to constructed the expert system for process sequence design, it was possible to reduce the lead time.

• The Journal of Korean Physical Therapy
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• 제27권3호
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• pp.147-153
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• 2015

Purpose: The purpose was to determine whether the application of the abdominal drawing-in maneuver (ADIM) and abdominal expansion maneuver (AEM) to stroke patients would affects their trunk stability, balance, pulmonary function, and grip strength. Methods: The subjects were 36 stroke patients who were randomly and equally assigned to an ADIM group (n=12), an AEM group (n=12), and a control group (n=12). The intervention was applied to each group three times per week, 30 minutes each time, for four weeks. Outcome measures were grip strength, modified functional reach test (mFRT) and pulmonary function. Pulmonary function were measured force expiratory volume at one second (FEV1), forced vital capacity (FVC), FEV1/FVC and peak expiratory flow (PEF) values. Results: The results of the three groups showed statistically significant improvements in grip strength. The AEM group showed significantly greater differences in grip strength than either the ADIM group or the control group. In the anterior mFRT, the ADIM group showed significantly improvements than the control group. The ADIM and AEM groups were showed statistically significant greater improvements in PEF between the baseline and post-intervention and the post-analysis revealed that the AEM group showed significantly greater improvements than the control group. Conclusion: The results of this study indicate that the ADIM and AEM were effective in improving the PEF of pulmonary function. The ADIM was more effective than AEM in trunk stabilization.