• 대한관절경학회지
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• 제10권1호
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• pp.39-44
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• 2006

목적: 전방 십자 인대 손상군과 슬관절의 손상 경력이 없는 정상군에서 슬개골 저위증의 빈도와 그 정도를 비교하고자 한다. 대상 및 방법: 스포츠 손상 후 발생한 전방 십자 인대 파열로 전방 십자 인대 재건술을 시행한 114예를 대상으로 하였다. 제 I 군은 수상 후 3주 이내에 자기공명영상을 시행한 급성 전방 십자 인대 파열군으로, 제 II 군은 3주 이후에 자기공명영상을 시행한 만성 전방 십자 인대 파열군으로, 제 III 군은 정상 대조군으로 하였다. T1 강조 자기 공명영상 정중 시상면에서 Insall-Salvati ratio, Carton index를 측정하여 비교 분석하였다. 결과: 정상군에서 Insall-Salvati ratio는 $1.02{\pm}0.12$, Carton index는 $1.14{\pm}0.16$, 전방 십자 인대 파열군에서는 각각 $0.91{\pm}0.12,\;0.89{\pm}0.20$으로 전방 십자 인대 파열군에서 모두 통계학적으로 유의하게 적었다. 급성 전방 십자 인대 파열군과 만성 전방 십자 인대 파열군에서의 비교는 통계학적 유의성은 없었다. 결론: 전방 십자 인대 파열군에서 정상 대조군과 비교시 슬개골 저위증의 경향을 보였으며, 따라서 전방 십자 인대 재건술시 슬개골 저위증의 경우, 이식건의 선택에 있어 세심한 고려가 필요할 것으로 사료된다.

• 한방재활의학과학회지
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• 제28권4호
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• pp.71-79
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• 2018

Objectives The aim of this study is to observe the effectiveness of complex Korean medicine treatment applied to the patients with degenerative meniscal tear and the correlation among clinical effectiveness, body mass index (BMI) and Kellgren-Lawrence grade (KL-grade). Methods The study participants were 38 patients who had been diagnosed with degenerative meniscal tear. Participants were classified by BMI, KL-grade and treated with acupuncture, electroacupuncture and pharmacopuncture. Clinical outcomes were assessed using Numeric Rating Scale (NRS), Western Ontario and McMaster Universities Arthritis Index (WOMAC Index) and EuroQol-5 Dimension Index (EQ-5D Index). Results Both NRS and WOMAC scores were significantly reduced after treatment (p<0.001). The EQ-5D for assessing quality of life showed further improvement (p<0.05). A statistically significant correlation was observed between the BMI and NRS, EQ-5D. KL-grade was correlated with WOMAC. Conclusions These results show that complex Korean medicine treatment to the patient with degenerative meniscal tear may be effective as a conservative therapy. Further research is required to confirm the effectiveness of Korean medicine treatment.

• 대한금속재료학회지
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• 제50권9호
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• pp.669-675
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• 2012

Hot tearing was the most significant casting defect when the castability evaluation of the Al-Zn-Mg-Cu alloy system was conducted. It was related to the solidification range of the alloy. Therefore, the hot tear susceptibility of the AA7075 alloy, whose solidification range is the widest, was evaluated. The hot tear susceptibility was evaluated by using a mold for a hot tearing test designed to create the condition for the occurrence of hot tear in 8 steps. According to the tearing location and shape, a hot tear susceptibility index (HTS) score was measured. The solidification range of each alloy and hot tear susceptibility was compared and thereafter the microstructure of a near tear defect was observed. As a result, the HTS of the AA7075 alloy was found to be 67. Also, the HTS in relation to a change in Zn, Mg, Cu composition showed a difference of about 6-11% compared to the AA7075 alloy.

• 펄프종이기술
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• 제35권1호
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• pp.1-6
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• 2003

This study was carried out to investigate the effect of internal fibrillation on the pulp and paper properties. The internal fibrillation was introduced into the SwBKP and recycled SwBKP by the mechanical treatment with Hobart mixer. WRV and physical properties of SwBKP were improved by the internal fibrillation. However the mechanical treatment of recycled SwBKP resulted in the decrease of strength properties of paper except for the tear index, although it was observed that WRV was somewhat increased by the mechanical treatment. The decrease of strength properties of recycled SwBKP might be caused by the hornification of fiber and the decrease of fiber strength.

• 펄프종이기술
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• 제32권4호
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• pp.34-40
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• 2000

This study was carried out to evaluate the effects of enzymatic treatment on the characteristics of KOCC. Novozym 342 and Pulpzyme HC were used for this purpose. Enzymatic treatment greatly increased the freeness of KOCC and Novozym 342 was more effective. WRV was improved only when KOCC was treated with 0.1% Pulpzyme HC. Pulpzyme HC was more effective to improve the flexibility of fiber(conformability angle) than Novozym 342. Coarseness of fiber was decreased with the enzymatic treatment. Fines content greatly decreased with 0.01% addition of enzymes. Novozym 342 was more effective than Pulpzyme HC for this purpose. Apparent density, tensile index and tear index decreased with enzymatic treatment, but stiffness increased. Especially the decrease of apparent density, tensile index and tear index by the treatment with Novozym 342 was significant than those of Pulpzyme HC. Therefore Novozym 342 will be suitable for the removal of fines and for bulky sheet, otherwise Pulpzyme HC will be good.

• 펄프종이기술
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• 제33권1호
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• pp.30-37
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• 2001

The effects of enzymatic treatment of recycled fiber were investigated to obtain the basic informations which can be used to improve the papermaking properties of recycled fiber. The recycled fibers were prepared by the repeated handsheet making and disintegrating of hardwood of hardwood and softwood kraft pulp. Novozym 342, Dinimax and Pulpzyme HC were used for enzymatic treatment. The change of fiber length distribution, freeness, contact angle and crystallinity of pulp were measured. The brightness, opacity, breaking and tear index of paper were also measured. The enzymatic treatment decreased long fiber fraction of recycled hardwood fiber, but increased long fiber fraction of recycled softwood fiber. Freeness was decreased with 0.1% enzyme and then increased again with the increase of th enzyme dosage. The improvement of flexibility of recycled fiber was obtained through the decrease of contact angle that is resulted from the decrease of crystallinity of fiber. Brightness and opacity were affected by the type of pulp and enzyme, and dosage of enzyme. Breaking length of recycled hardwood fiber was improved with enzyme treatment, but breaking length of recycled softwood fiber was decreased except for 0.01% Pulpzyme treatment. Tear index was decreased with enzymatic treatment and the lowest decrease was observed with the treatment to Pulpzyme.

• 한방재활의학과학회지
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• 제28권1호
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• pp.175-184
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• 2018

The purpose of this study is to report the effectiveness of complex Korean Medicine treatment for anterior cruciate ligament (ACL) injuries with meniscus tear. Four patients were treated with complex Korean Medicine by acupuncture, pharmacopuncture and herbal medication. We evaluated the improvement of knee pain and function by Numeric Rating Scale (NRS), Western Ontario and McMaster Universities Arthritis Index (WOMAC Index), EuroQol-5 Dimension Index (EQ-5D Index). After treatment, we found that knee pain was reduced and joint function was improved by NRS and WOMAC index in all cases. In the evaluation of health-related quality of life through EQ-5D index, there was no significant difference in patients with degenerative knee osteoarthritis and severe meniscal injury. This results show that complex Korean Medicine may be an effective option for ACL injuries with meniscus tear. Further clinical studies are needed to clarify the effect of Korean Medicine therapy on ACL injuries with meniscus tear.

• 한국식품과학회지
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• 제45권4호
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• pp.473-477
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• 2013

혼합디자인에 의해 설정된 조건하에서 압출성형한 율무와 밀가루의 압출성형물은 율무 첨가에 대해 여러 반응 요인들이 압출성형물의 특성에 영향을 끼치는 것으로 나타났다. 실험조건은 율무 함량 5-75%, 밀가루 25-95%로 결정하였으며, 수분함량은 20.55%로 고정하여 modified distance based mixture design으로 실험설계 및 분석하였다. Bending 파손강도, WAI, a값 등은 유의성이 없는 것으로 나타났으나, 팽화물의 직경, WSI, L값, b값은 율무와 밀가루의 혼합에 의해 유의성이 존재하는 것으로 나타났다. 팽화물의 직경, L값, b값은 선형 모델로 분석할 수 있었으나 WSI는 quadratic 모델로만 설정이 가능한 것으로 나타났다. 율무의 함량이 많아질수록 외관적으로 팽창되어지는 정도가 적어졌으며, 색상도 어두워지는 것으로 나타났다. 율무의 함량이 증가할수록 L값은 77.84에서 72.73, a값은 1.37에서 1.77로, b값은 19.42에서 17.64로 이동되었다. WSI는 율무와 밀가루가 40%:60%로 혼합되어 압출성형되었을 때 가장 낮게 나타났으며, WAI는 율무와 밀가루 혼합 비율에 대해서는 유의성이 없는 것으로 나타났다. 혼합디자인 계획법은 시리얼류 제품 생산에 적합한 조직 형성과 반응량에 유의한 영향을 미치는 요인 등에 대해 적절한 혼합 비율과 가공 조건 등을 제시할 수 있음을 알 수 있었다. Modified distance based mixture design에 의해, 일반 시중 제품과 유사한 조직감을 나타낼 수 있는 율무와 밀가루, 물의 적정 배합 비율은 60.12:19.42:20.46으로 나타났다.

• 대한금속재료학회지
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• 제48권5호
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• pp.436-444
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• 2010

The hot tear susceptibility of Al alloys was investigated by using a constrained-rod mold designed to quantify 8 types of tear tendency. The severity of the crack was scored by 5 grades on a scale of 0 to 4, with 0 being "no crack formed" and 4 being "complete separation by crack". The Hot Tear Susceptibility index (HTS) which consists of crack type scores and position scores, was proposed to compare the hot tear tendency of Al alloys. A356.0 cast alloy and AA6061 wrought Al alloy showed an HTS value of 27.5 and 53 respectively. The effects of Si, Cu, and Mg content on hot tear tendency were also investigated with a constrained-rod mold. The variation of HTS values with alloying elements represents similar behavior in the variation of the solidification range in a pseudo binary phase diagram.

• 대한약침학회지
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• 제13권4호
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• pp.129-137
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• 2010

외상성 급성기 슬관절 반월상 연골판 손상으로 인하여 통증 및 보행장애를 호소하는 환자에 대하여 관절강내 봉약침을 시술하였으며 그 결과 통증의 감소 및 보행시간의 증가와 WOMAC Index score의 감소를 확인하였다. 향후 슬관절 반월상 연골판 손상환자에 대한 봉약침 시술의 효과에 대한 적용 및 연구가 더욱 필요할 것으로 생각된다.