• 대한족부족관절학회지
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• 제12권1호
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• pp.47-54
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• 2008

Purpose: The isolated exercise therapy and its effect for the treatment of posterior tibial tendon dysfunction (PTTD) is not well known. The purpose of this study was to identify the clinical effect of stretching and strengthening exercise program on the patients' muscle function and range of motion, pain and gait in the management of the early stage PTTD. Materials and Methods: From October 2006 to March 2007, 14 patients with early stage PTTD (stage I or IIa) without surgical intervention were randomly assigned into two groups and we analyzed their clinical results. All patients were female and one who have sprained the same ankle during the program and one who withdrew from the program due to her private reason were excluded. At the last, the exercise group (EG) was seven and the control group (CG) was five. Mann-Whitney U test was used for the comparison of pain, ROM, muscle power, AOFAS score and 5 minute walking test of both groups. Wilcoxon-signed rank test was used for the comparison between the pre and post exercise program in EG. Results: The pain was significantly reduced in EG compare to CG and only the dorsiflexion was significantly increased in EG in the analysis of ROM. The dorsi flexion and plantar flexion power were significantly increased in EG. Conclusion: Our 6 weeks stretching and strengthening exercise program showed noticeably improved clinical result, and therefore it is recommended as one of the useful treatment option in the management of early stage PTTD.

• Journal of Electrical Engineering and Technology
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• 제10권4호
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• pp.1786-1795
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• 2015

It is common practice to identify the insulation faults of GIS through monitor the contents of SF₆ decomposed components. Partial discharges (PD) could lead to the decomposition of SF₆ dielectric, so new reactions usually occur in the mixture of the newly decomposed components including traces of H₂O and O₂. The new reactions also cause the decomposed components to differ due to the different amounts of H₂O and O₂ even under the same strength of PD. Thus, the accuracy of assessing the insulation faults is definitely influenced when using the concentration and corresponding change of decomposed components. In the present research, a needle-plate electrode was employed to simulate the PD event of a metal protrusion insulation fault for two main characteristic components SO₂F₂ and SOF₂, and to carry out influence analysis of trace H₂O and O₂ on the characteristic components. The research shows that trace H₂O has the capability of catching an F atom, which inhibits low-sulfide SF_x from recombining into high-sulfide SF₆. Thus, the amount of SOF₂ strongly correlates to the amount of trace H₂O, whereas the amount of SO₂F₂ is weakly related to trace H₂O. Furthermore, the dilution effect of trace O₂ on SOF₂ obviously exceeds that of SO₂F₂.

• 대한물리의학회지
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• 제13권3호
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• pp.49-60
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• 2018

PURPOSE: This study was conducted to investigate the intervention effect obtained by applying an ICF tool to improve the dressing in a patient with rotator cuff syndrome to schematize the problems and approaching with PNF to solve the problems. METHODS: The subject of this study was a 44-year-old patient who underwent surgery after complete right rotator cuff tear. To treat his symptoms, the processes of clinical practice were implemented in the order of examination, assessment, diagnosis, prognosis, intervention, and outcome. During examination, patient information was collected using the ICF core set. In the assessment, the problems were schematized, and an ICF assessment sheet was used to identify the interaction of the problems. The diagnosis was made by clearly describing the causal relationship derived from the assessment in ICF terms. To solve the problems, the intervention was given in the order of indirect, direct, and task based on the philosophy of PNF. To evaluate the outcome, the differences before and after the intervention were compared. Additionally, the comparison for the ICF qualifier is presented with the ICF evaluation display. RESULTS: The results of the study showed clinical advantages in shoulder strength, eccentric control, range of motion, scapular stability, and shoulder pain. Overall, our patient with rotator cuff syndrome showed improvement in dressing and undressing activity in response to the PNF strategy. CONCLUSION: Application of the PNF intervention strategy after complete rotator cuff tear would have a positive effect on patient upper extremity function.

• 한국작물학회지
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• 제44권3호
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• pp.191-196
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• 1999

In rice-barley cropping systems, efficient utilization of barley straw is essential, both to improve the soil fertility and to conserve the environment. In order to identify the effects of barley straw mulch rates in rice cultivation, a rice cultivar, 'Gancheogbyeo', was directly seeded on a no-tillage field synchronized with barley harvesting with five barley straw mulch rates, i.e., 0, 2.5, 5.0, 7.5 and 10.0 ton h $a^{-1}$ and agronomic characters of rice and soil nitrogen were determined. The increasing of barley straw mulch rates. Dominant weed species, chestnut, occurred in large amounts in no mulching or lower mulch rates than in higher mulch rates. The content of N $H_4$$_{＋}$-N in soil applied with high barley straw mulch rates was lower during the month after seeding, and then it was higher at heading date, compared with lower mulch rates or no mulch plot. As the barley straw rate increased, maximum tillering stage was delayed, and plant height was reduced. Although the lodging of rice plants was seldom observed in all plots, the breaking strength of the culm was significantly higher in the mulch rate of 10.0 ton h $a^{-1}$ . With an increase of barley straw mulch rate, the effective tillering rate and spikelet number $m^{-2}$ decreased while ripened grain ratio increased. The rice grain yield was slightly decreased with an increase of barley straw mulch rate, although significant differences were not found all barley straw mulch rates. These results suggest that there is no significant yield loss although the total barley straw production, approximately 5.0 ton h $a^{-l}$ in the present study, apply in the paddy for the following rice cultivation by no-tillage direct seeding.ect seeding.

• 지질공학
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• 제13권3호
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• pp.345-358
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• 2003

근래에 와서 천연골재자원의 보호와 건설 폐기물의 재활용의 측면에서 폐 콘크리트에서 분리한 재생골재의 재활용이 모색되어 왔으나, 재생골재는 주로 콘크리트 도로기층용과 구조물 됫채움재와 같은 저급재료로 사용되고 있다. 본 연구는 재생골재의 콘크리트 용 골재로의 효율적인 재활용 가능성을 위하여, 재생골재의 구성광물, 화학조성 및 공학적 물성 특성 파악하고 재생콘크리트(RCA)의 시공성과 역학적 특성에 대한 연구를 수행하였다. 재생골재에 잔존하는 폐 콘크리트의 모르타르 및 시멘트 페이스트는 골재의 기초 물성 특성, 재생콘크리트의 시공성 및 굳은 콘크리트의 공학적 특성에 주요한 영항을 미치는 것으로 나타났다. 그러나, 적절한 양의 재생굵은골재를 대체한 재생콘크리트는 압축강도와 동결융해 내구성에서 보통 콘크리트의 기준에 근접하는 것으로 나타났다 따라서, 재생골재의 제조과정에서 폐 콘크리트의 모르타르 및 시멘트 페이스트의 제거가 효율적으로 이루어지고 적절한 대체율이 적용되면, 재생골재는 콘크리트용 골재로서 효율적인 사용이 확대 될 수 있을 것으로 사료된다.

• 한국콘텐츠학회논문지
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• 제12권4호
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• pp.133-142
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• 2012

폴란스키의 영화는 폭력과 공포로 얼룩진 폐쇄 공간 속의 인간을 일관된 주제로 삼아 동시대의 불안정과 폭력의 경향, 사회 가치로부터 고립된 개인의 무능력과 고독을 제시하고, 그가 꾸준히 제기해 온 존재의 근원적 공포를 다룬다. 이 연구는 로만 폴란스키 감독의 영화들에서 보이는 독창적이고 고유한 연출스타일의 분석을 통해 영화 속에 나타난 불안과 공포의 미학을 살펴보는데 그 목적이 있다. 서스펜스 구축의 고전적인 원리와 다채로운 이미지 직조술에 기초한 그의 영화 스타일에서 보여주는 닫힌 상황 속에서 무력한 개인이 겪는 곤경, 알 수 없는 외부세계로부터 숨통을 조여 오는 공포의 기운, 야만적 폭력에 깨어지는 인간의 신념은 로만 폴란스키 영화와 흔히 연결되는 테마이다.

• 보존과학회지
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• 제35권6호
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• pp.670-680
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• 2019

본 연구는 다량의 목제유물이 출토된 삼국시대 함안 성산산성을 비롯하여 동시대로 생각되는 경상권 유적 목제유물의 수종분석 결과를 빗, 목간, 용기류 등의 용도별로 구분하여 비교함으써 용도에 따른 선호 수종이나 요구 특성이 있는지 파악하고자 하였다. 목간과 빗의 경우는 뚜렷한 선호 수종이 나타났고, 용기류의 경우는 비교적 중간 정도의 강도 특성을 갖는 목재로써 일정 부분 수분이 동의 저항성이 있을 것으로 생각되는 수종들이었다.

• 한국콘텐츠학회논문지
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• 제18권9호
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• pp.606-613
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• 2018

이 연구는 범죄에 대응하기 위하여 경찰의 정보활동 중 휴민트에 대하여 살펴보고, 휴민트의 특성을 고려하여 인적네트워크 수준이 휴민트 활용에 미치는 영향을 파악하기 위한 연구이다. 연구의 완성을 위하여 현직경찰을 대상으로 설문조사를 실시하여 얻어진 자료로 연구를 수행하였다. 휴민트는 대인간의 접촉을 통하여 얻어지는 정보를 의미하는 것으로 무형적인 접촉을 통하여 얻어지는 정보를 의미한다. 휴민트는 전달되는 속도가 빠르고, 상대의 은밀한 의도까지 파악할 수 있으며, 접근하기 어려운 정보에 접근할 수 있고, 기계를 사용하지 않는 경우가 많기 때문에 인간의 오감을 이용한 정보획득이 가능한 장점을 가지고 있다. 휴민트는 인간관계를 바탕으로 정보를 획득하는 정보활동으로서 인간관계는 휴민트 획득의 근간이라 볼 수 있다. 따라서, 경찰관의 인간관계를 독립변수라고 할 때 인간관계를 구성하는 인간관계 수준, 인간관계의 신뢰깊이, 인간관계의 폭이 휴민트 활용에 미치는 영향을 살펴본 결과, 인간관계의 폭이 넓을수록 동향을 파악하는데 효과적으로 이용하고 있는 것으로 나타났으며, 범죄에 대응하기 위한 정보를 활용하는 경우에도 인간관계의 폭이 넓을수록 효과적인 것으로 나타났다.

• Architectural research
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• 제19권3호
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• pp.79-87
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• 2017

In earthquake engineering, dynamic analyses are usually conducted by using a nonlinear analytical model of the entire building in order to identify the performance against earthquakes. At the same time, a large number of dynamic analyses are required to consider uncertainties on analytical models and ground motions. Therefore, it is necessary for the analytical model to be adequate, that is to say, the runtime should not be too long as the entire building is modeled to be in much detail, or the nonlinear model should not yield outputs very far from the actual ones by excluding important behaviors too much. The analytical model is usually developed based on experimental results, which have been already conducted for reinforced concrete columns with relaxed details. Therefore, this study aimed at making analytical models to be able to simulate the hysteretic behavior of the columns simply and easily. The analytical model utilizes a lumped hinge model to represent nonlinear moment-rotation hysteretic behavior of RC columns, which is feasible for nonlinear dynamic analyses usually conducted in earthquake engineering and for matching the analytical model to test results. For the analytical model, elements and material models provided by OpenSees are utilized. The analytical model can define the envelope curve, pinching, and unloading stiffness deterioration, but shortcoming of this model is not to be able to consider axial force-moment interaction directly and to simulate strength deterioration after post-capping completely. However, the analytical model can still represent test results well by considering that the goal of this study is to propose a general way to represent the hysteretic behavior of RC columns with relaxed details, not to provide parameters for a refined hysteretic model that can be just applied case by case.

• 한국수산과학회지
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• 제47권3호
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• pp.283-291
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• 2014

This study assessed dominant fish species, and the characteristics and spatio-temporal distribution of fish schools using acoustic and catch data in the marine ranching area (MRA) of Yeosu in July and August 2013. Acoustic data were collected using a 200-kHz dual beam transducer, and catch data were analyzed through auction data generated by a set net installed in the MRA. More fish schools were detected by acoustic methods in July than in August. The temporal distribution of fish schools differed between July and August, but, many schools demonstrated a high mean volume scattering strength (SV) around artificial reefs. Additionally, the characteristics of fish schools detected by echograms and the species caught by set nets differed between July and August. The dominant fish species were Engraulis japonicus, Pampus argenteus, Scomberomorus niphonius, and Pampus echinogaster in July, and approximately 85% of the catch in August consisted of Scomberomorus niphonius. Therefore, hydro-acoustic tools are useful for estimating fish school characteristics in large areas over a short period. To determine species, it is important to conduct net sampling surveys during the acoustic surveys. However, if a database of fish school characteristics organized by species is constructed through continuous study, it could be possible to identify fish species through acoustic methods alone.