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불안정판 위에서 후방 유선형 신발이 척추기립근 및 하지 근 활성도에 미치는 영향
권혁규,권유정,박진현,Dennis W. Fell 대구대학교 특수교육재활과학연구소 2011 再活科學硏究 Vol.29 No.1
본 연구는 일반 신발과 후방 유선형 신발을 착용한 후 불안정판 위에서 척추세움근, 안쪽넓은근, 앞정강근, 장딴지근, 넙다리두갈래근의 근 활성도를 비교 하기 위한 것으로 성인 남녀 28명이 참가하였으며 대상자들은 일반 신발과 후방 유선형 신발을 신고 8단계의 BSS 기기 위에 15초 동안 서서 근활성도를 측정하였다. 이 연구의 결과를 종합해보면 후방 유선형 신발을 착용한 경우 일반 신발을 착용한 경우에 비해서 앞정강근과 안쪽 넓은근에서 상대적으로 더 높은 활성도를 보여주었다. 이러한 결과는 건강한 성인에서 후방 유선형 신발을 신었을 때 불안정한 면 위에서 균형을 유지하기 위해 발목의 자세 조절전략만으로도 균형을 유지하기에 충분한 것으로 생각되어진다. The purpose of this study was to compare muscle activation of erector spine and lower extremity such as tibialis anterior, gastrocnemius, medial hamstring and vastus medialis after wearing a pair of normal shoes and unstable shoes on the rocking surface. 28 university students who did not have any lower musculoskeletal and neurological disorders in the past were participated in this study. Each subject was standing for 15 seconds on the biodex stability system(BSS) of level 8 while wearing normal shoes and unstable shoes. we used Electromyography to measure muscle activation of elector spine and lower extremity and expressed muscle activation as a percentage of maximal voluntary isometric contraction (%MVIC). Paired t-test was used to compare the muscle activation of erector spine and lower extremity between normal shoes and unstable shoes. The result of this study was as follows. Tibialis anterior and vastus medialis showed relatively higher average electromyogram rates more than normal shoes(p<.05).
설성경,최문정,권혁래 국제비교한국학회 2002 비교한국학 Comparative Korean Studies Vol.10 No.1
On the subject of Japanese invasion of Korea in 1592(briefly called Imjin Invasion), it was studied for the character of Korea-Japan historic literature; Imjinrok, Taikouki, Chosenseipatski. The approach was made focusing on the environment, narrative method, plot and the characters, consciousess of writers etc. This discussion can be briefed out as follows. First of all, Imjinrok of Chosun Dynasty has been written with a great influence from both practical literature and historic description after Imjin Invasion. The Chronicle recording can counted as one of the major method of narration. The Japanese works such as Taikouki and Chosenseipatski were made on the tradition of military literature of previous generation. One of distinctive feature is the beautification and the heroism that is introduced as the repose for the defeated. It comes from the intended efforts to shape the works as the historical records outwardly, continuously following the trend of military records of previous generations. When the plot is compared, it is as follows, It can be categorized on the narrative novels; before the war, in the beginning of the war, in the midst of war, in the end of war, Three different copies of Imjinrok are almost identical with the stage as the midst of war as the historical records. However, it shows big difference in the peace treaty is made after the death of Toyotomi Hediyoshi, but the Hangul version presents that the Samyunhdangs heroic story over the Japanese after the General Lee Sunsin furthering the final ending with colonialism over Japan. It is one of the important pattern that the important pattern that the writers consciousness is found from post-war novels, even in the historical narration. The plot of Taikouki is composed as two parts: the combat story telling the invasion to the Chosun and the non-combat story showing the personal glorification of Toyotomi. The combat story showing the personal glorification of Toyotomi, The combat story is generally written with victorious events of Japanese military and the sudden final end without a clear description over peace treaty with Ming Dynasty and the defeat of Japan. In the middle of the combat story, it is full with non-combat statement and anecdote designed to chant the glorious Toyotomi and his ruling. On the contrary, two works of chosenseipataki is filled with the combat story on the whole. The first half of the Hori-copy makes the description comparatively as it is, but the second half relatively centered on the battle against Ming. On the non-combat narration, it shows the strong will of the writer who is going to emphasize the ideology of Japanese king. The Oseiki-copy is similar with the Hory-copy, but it is added up with new anecdotes with extended explanation for some simple contents, particularly on the heroism for Toyotomi and the martial story of Gato and Konisi. The comparison between the chosun and the Japanese is tried from different perspectives of counter partner each other: Imjinrok with the brutal and avaricious hegemony of the Japanese, Tailouki and Chosenseipatski with the lustful and extravagant, incompetent martiality of the Chosun. Compared with characters and consciousness of writer, Imjinrok represents the type of royal personality and the inevitable Gods providence in detail. For the Chosun Dynasty, it is counted as the winning forces: civil volunteer soldiers, the royal military warlords, foreign troops from Ming Dynasty, the Royal ministers asking the augmentation troops of Ming. Among the three copies, it brings about the active roles of commanders of civil volunteer forces and generals, remarkably displaying royalty and patriotism. Meanwhile, Lee Sunsin is shaped as the most important character form lots of commanders. Out of the defeated generals, it is presented with the outstanding character with fidelity, surpassing over victorious generals. On the other works, the dispatched troops of Ming seems to play a decisive role in the descriptive narration. It can mean the meritorious achievement in the history, but it seems for the writer to consider Ming as the God-sent troops. What draws the attention is the active involvement of characters who is praised with superpower of with deity. On the Chinese copy of Kukdo, this phenomenon is found with partial involvements, but on the Hangul copies with decisive and overall roles. From the Hangul copies, it is understandable with detailed pattern as a the providence of a God, theorized with untouchable presence of the Chosun Dynasty whom is protected by an Heavenly God and the Budda from any Japanese intrusive invasion. In connection with the reality in fact, the recognition of the God providence is quite superficial, resulting in the evidence of conservative ideology of actual politics. The writers of Tiakouki and Chosunseipatski tried to depict the ideal supreme commander and warriorship with the introduction of characters: Toyotomi Hideyoshi, Gato Kiyomasa, Konisi Yukinaga etc. It seems to foster the warrior spirit by the guideline of warrior way for the next generation. It is also originated from the intention to serve repose of the Toyotomi family, which is defeated by the Tokugawa Shogun.
DESIGN AND FABRICATION OF THE BEAM POSITION MONITOR FOR THE PEFP LINAC
Kwon, Hyeok-Jung,Kim, Han-Sung,Seol, Kyung-Tae,Ryu, Jin-Yeong,Jang, Ji-Ho,Cho, Yong-Sub Korean Nuclear Society 2013 Nuclear Engineering and Technology Vol.45 No.4
The beam position monitor (BPM) is an essential component for the PEFP 100-MeV linac's commissioning. A prototype stripline-type linac BPM was designedfor this purpose. The electrode aperture is 20 mm in diameter, and the electrode is 25 mm long, so it can be installed between Drift Tube Linac (DTL)101 and DTL102, which is the shortest distance. One end of the electrode is connected to the Sub Miniature Type A (SMA) feed through for signal measurement, and the other end is terminated as a short. The signal amplitude of the fundamental component was calculated and compared with that of the second harmonic component. The designed BPM was fabricated and a low-power RF test was conducted. In this paper, the design, fabrication and low power test of the BPM for the PEFP linac are presented.
( Jung Hyeok Kwon ) The Editorial Office of Gut and Liver 2010 Gut and Liver Vol.4 No.s1
Percutaneous ethanol injection (PEI) therapy has been replaced by more-effective thermal ablation techniques that have lower local recurrence rates. However, PEI therapy remains useful in certain settings. Since PEI can be performed in any portion of the liver, PEI therapy can be valuable when tumors are located in close proximity to intestinal loops or other positions that are risky for thermal local ablative techniques. PEI therapy is also valuable in other situations where radiofrequency ablation (RFA) is difficult, including technically difficult masses that are not detected with ultrasound (US), are located in the hepatic dome, in the subcapsular area, and exophytically, or are surrounded by large vessels. PEI therapy contributes to combination therapy with transcatheter arterial chemoembolization or RFA in advanced-stage hepatocellular carcinoma (HCC), and also to the treatment of large HCC or extrahepatic metastasis from HCC. These roles of PEI therapy should be stressed for the treatment of HCCs in appropriate clinical situations. This comprehensive review of articles related to PEI therapy illustrates the recent role and indications of this therapy, which is currently valuable for HCC in the era of RFA. (Gut Liver 2010;4(Suppl. 1):S105-112)