• Clinics in Shoulder and Elbow
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• 제21권1호
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• pp.48-55
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• 2018

While non-operative treatment with structured rehabilitation tends to be the strategy of choice in the management of Rockwood type III acromioclavicular joint injury, some advocate surgical treatment to prevent persistent pain, disability, and prominence of the distal clavicle. There is no clear consensus regarding when the surgical treatment should be indicated, and successful clinical outcomes have been reported for non-operative treatment in more than 80% of type III acromioclavicular joint injuries. Furthermore, there is no gold standard procedure for operative treatment of type III acromioclavicular joint injury, and more than 60 different procedures have been used for this purpose in clinical practice. Among these surgical techniques, recently introduced arthroscopic-assisted procedures involving a coracoclavicular suspension device are minimally invasive and have been shown to achieve successful coracoclavicular reconstruction in 80% of patients with failed conservative treatment. Taken together, currently available data indicate that successful treatment can be expected with initial conservative treatment in more than 96% of type III acromioclavicular injuries, whereas minimally invasive surgical treatments can be considered for unstable type IIIB injuries, especially in young and active patients. Further studies are needed to clarify the optimal treatment approach in patients with higher functional needs, especially in high-level athletes.

• 한국작물학회지
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• 제10권
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• pp.45-50
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• 1971

방사선조사시 열처리의 효과를 알기 위하여 수도종자에 방사선조사시 열전후처리를 행하였던바$M_1$ 세대의 생물학적인 반응 및 $M_2$ 세대의 변이율에 대해 몇가지 결과를 얻었다. 1. 방사선선량 20kR에서 열전처리는 방사선단독조사에 비해 생물학적인 장해를 적게하고 변이율을 증가시켰다. 2. 방사선단독조사 및 조사전열처리에 비해 heat shocking으로서 열후처리하는 것은 변이율을 증가시켰다. 3. 열전처리에 의해 $M_1$ 세대의 장해가 적고 변이율이증가되는 가장 효과적인 열처리온도 및 시간은 6$0^{\circ}C$에서 30분간이었다. 4. 열처리는 방사선단독조사에 비해 mutation spectrum을 달리했다.

• 한국재료학회지
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• 제21권7호
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• pp.364-370
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• 2011

Currently, there are two main issues regarding the development of core technologies in the automotive industry: the development of environmentally friendly vehicles and securing a high level of safety in the event of an accident. As part of the efforts to address these issues, research into alternative materials and new car body manufacturing and assembly technologies is necessary, and this has been carried out mainly by the automotive industries. Large press molds for producing car body parts are made of cast iron. With the increase of automobile production and various changes of design, the press forming process of car body parts has become more difficult. In the case of large press molds, high hardness and abrasive resistance are needed. To overcome these problems, we attempted to develop a combined heat treatment process consisting of local laser heat treatment followed by plasma nitriding, and evaluated the characteristics of the proposed heat treatment method. From the results of the experiments, it has been shown that the maximum surface hardness is 864 Hv by the laser heat treatment, 953 Hv by the plasma nitriding, and 1,094 Hv by the combined heat treatment. It is anticipated that the suggested combined heat treatment can be used to evaluate the durability of press mold.

• 한국소음진동공학회:학술대회논문집
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• 한국소음진동공학회 2004년도 추계학술대회논문집
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• pp.349-353
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• 2004

A study on optimal placement of constrained layer damping treatment for vibration control of automotive panels is presented. The effectiveness of damping treatment depends upon design parameters such as choice of damping materials, locations and size of the treatment. This paper proposes a CAE (Computer Aided Engineering) methodology based on finite element analysis to optimize damping treatment. From the equivalent modeling technique, it is found that the best damping performance occurs as the viscoelstic patch is placed by means of the modal strain energy method of bare structural panels to identify flexible regions, which in turn facilitates optimizations of damping treatment with respect to location and size. Different configurations of partially applied damping layer treatment have been analyzed for their effectiveness in realizing maximum system damping with minimum mass of the applied damping material. Moreover, simulated frequency response function of the automotive roof with and without damping treatments are compared, which show the benefits of applying damping treatment. Finally, the optimized damping treatment configuration is validated by comparing the locations and the size of the treatment with that of an experimental modal test conducted on roof compartment.

• 대한한방소아과학회지
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• 제35권3호
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• pp.28-42
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• 2021

Objectives The purpose of this study is to investigate the effect of Tuina treatment for children with Autism Spectrum Disorder (ASD), and to propose guidance to future studies or application in clinical setting. Methods The articles published from year 2000 to May 2021 by China National Knowledge Infrastructure (CNKI) were searched by setting up field as '中醫學', '中藥', '中西醫結合' and by setting up keyword as '小儿自閉症', '儿童自閉症', '自閉症譜系障碍', 'Autism', 'Autism spectrum disorder' that corresponds to participant and '推拿', '導引', '按摩', 'Tuina', 'massage'. Results Nine selected articles were analyzed and summarized by authors and year published, characteristics, diagnostic criteria, treatment methods and contents, treatment duration, evaluation criteria and results of the study. The articles were also reviewed by reported side effects, and evaluated the quality of the study according to Cochrane Handbook's Risk of Bias 2 (RoB 2) assessment of the Randomized Control Trial (RCT) articles. All studies used Tuina treatment to achieve effective results for pediatric autism spectrum disorder. Conclusion Pediatric Tuina treatment (TM) is a non-invasive treatment that does not stimulate patients with unstable ASD but increase patient adherence, and can be safely and simply operated. Therefore, pediatric Tuina treatment is worth utilizing as a clinical basis for further development of ASD treatment.

• 대한한의학방제학회지
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• 제30권4호
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• pp.319-338
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• 2022

Objectives : The purpose of this study is to investigate the research trend of Korean traditional medicine for edema under Korean healthcare facilities. Methods : We collected data from search engines for research including domestic online database using the keywords edema, Hydrocele, emphysema and Pneumocranium Results : Total of 41 articles were about Lower body edema, General edema, edema of the eyelid, Lymphedema, Hydrocele, Bone marrow edema, hand edema, Brain edema, emphysema, Pneumocranium The treatment methods used were acupuncture and pharmacopuncture treatment, moxibustion treatment, herbal medicine treatment, cupping treatment, massage treatment, radio frequency treatment, and Chuna treatment. Twenty-nine studies used only oriental medicine treatment, and 12 studies combined oriental medicine and western medicine. the most commonly used measurement was Measurement of the perimeter of the area. Conclusions : This study shows the research trend of edema. Through the collected data, the treatment methods and for specific information of treatments were organized. This study can be used in clinical environments and will contribute for further study in edema.

• 한국재료학회지
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• 제32권3호
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• pp.139-145
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• 2022

Reheat treatment process of mold is necessary when partial machining of the mold is required, such as shape correction for an existing mold. If defects such as cracks or significant deterioration of mechanical properties of the mold occur during reheat treatment, it is impossible to reuse the mold. In this study, reheat treatment was performed up to two times for STD11 tool steel, and microstructure and mechanical properties according to the reheat treatment were evaluated. Carbide fraction and grain size of prior austenite were almost unchanged after the reheat treatment. Hardness and impact toughness increased significantly after QT treatment, and these properties were maintained without significant change even after the reheat treatment. It is concluded that up to two iterations of reheat treatment does not cause deterioration of properties of STD11 tool steel. Based on these results, a mold for a face-lifted front bumper was manufactured through machining and reheat-treating of an existing mold.

• 한국잠사곤충학회지
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• 제9권
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• pp.27-34
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• 1969

본시험은 G8과 Urea를 상엽에 복합처리하였을 때 상수의 발육 및 처리상엽을 결여한 잠아의 실용형질에 미치는 영향과 GB를 단일처리한 상엽을 결여하였을때 잠아의 실용형질을 구명하기 위하여 실시한 결과 다음과 같은 성과을 얻었다. 1. 상수 가. 춘잠기에는 GB+Urea를 복합처리한 것이 주당 엽중이 가장 무거웠으며 무처리구에 비하여 수엽량이 7％ 증수되 었다. 나. 추잠기에는 GB와 Urea를 각각 단일처리한 것과 GB＋Urea를 복합처리한 것이 무처리구보다 지조장, 엽장 및 엽폭이 컸으며 수량도 많았다. 그러나 GB을 단일처리한 것이 지조장 1.000m 당의 엽량이 가장 적었다. 다. 각처리별 상엽의 성분에 있어서는 GB과 Urea를 복합처리한 것이 GB+Urea를 복합처리한 것에 무처리구보다 수분과 조단백질이 약간 많았으나 건물과 탄수화물은 약간 적었다. 2. 춘잠기 잠아성장 가. 감잠비율에 있어서는 4,5령구 공히 GB+Urea 복합처리구가 높았고 화용비율은 4령구에서 다른 처리구 보다 적었다. 나. 기잠대 1 만두수잠량은 4,5령구 공히 복합처리구에 큰 차는 없었으나 GB단일처리구가 다른 처리구 보다 약산 많은 경향이었다. 다. 견증비율은 각처리구간에 유의차는 없었으나 4령구가 5령구에 비하여 약간 높았다. 3. 추잠기 잠아성장 가. 감잠비율은 무처리구와 Urea를 단일처리한것이 GB+Urea 복합처리한것과 GB를 단일처리한 것보다 낮았다. 나. 화용비율에 있어서는 Urea를 단일처리가 GB+Urea 복합처리한 것보다 높았으며 다른 처리간에는 유의차 가 없었다. 다. 대 4령구잠 1만두수견량은 Urea 처리구가 무처리구. GB+Urea 복합처리구, GB 단일처리구 보다 많았다. 라. 견증비율을 각처리간에 유의차가 없었다.

• Journal of Korean Dental Science
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• 제11권1호
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• pp.21-31
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• 2018

Occlusion may change spontaneously but dental treatment or trauma in the patients with temporomandibular disorders (TMDs) may also alter occlusion. This report presents three cases displaying occlusal changes. Review of literature emphasizes the significance of TMD treatment. Conservative treatment modalities such as counseling, medication, physical therapy and splint therapy may be selected as initial treatment options. Irreversible or invasive treatment, such as orthodontic, prosthodontic, and occlusal adjustment should not be attempted early. In case there is no response to conservative treatment, joint injection, muscle injection, arthrocentesis or arthroscopic surgery might be performed.

• Journal of Chest Surgery
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• 제47권6호
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• pp.499-503
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• 2014

Atrial fibrillation (AF) is the most common type of arrhythmia and has a large global burden. In general, treatment of AF is based on medication and consists of rate and rhythm control together with anticoagulation. However, surgical treatment may be required in patients with AF combined with organic valvular heart diseases or who experience recurrence despite medication. In addition, surgical treatment plays a role in the treatment of lone AF. This article reviews the various surgical treatment options for AF.