• Title/Summary/Keyword: symmetrical period

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One Stage Reconstruction of Facial Palsy Using Segmental Latissimus Dorsi Muscle Free Flap (부분 광배근 피판을 이용한 안면마비의 단단계 재건)

  • Kang, Dong Hee;Kim, Sang Bum;Koo, Sang Whan;Park, Seung Ha
    • Archives of Plastic Surgery
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    • v.32 no.3
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    • pp.281-286
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    • 2005
  • The goal in facial paralysis treatment is to achieve the normal appearance of the face as well as to reconstruct the natural symmetrical smile. In cases of facial paralysis, a widely accepted procedure is the two stage method, which combines neurovascular free muscle transfer with cross face nerve grafting. Although the results are promising, the two operations of this method, which are about 1 year apart, impose an economic burden on the patients and require a lengthy period before results are obtained. In order to overcome these drawbacks, one stage method, using latissimus dorsi neurovascuular free muscle flap was introduced. Between January 2000 and January 2004, fifteen patients with long standing facial paralysis were treated in the Korea University Anam Hospital. The segmental latissimus dorsi with long nerve and pedicle was transferred to the paralyzed side of the face. The first postoperative movement of the transferred muscle was reported at 8.9 months, faster than that of the two stage method. During the next 24 months, a constant increase in the power of muscle contraction was observed. The fifteen cases were evaluated within an average of 31.7 months following the surgery and satisfactory results including muscle contraction were obtained in eleven of the cases but muscle contraction was not found in three cases.

Imaging Features of Madelung's Disease: Case Report

  • Kang, Hyun Jung;Lee, In Sook;Cha, Won Jae;Kim, Hak Jin;Song, You Seon;Ko, Jin Young
    • Investigative Magnetic Resonance Imaging
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    • v.19 no.2
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    • pp.122-126
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    • 2015
  • Madelung's disease, or benign symmetric lipomatosis, is an uncommon disorder that is characterized by massive symmetrical deposits of adipose tissue in the upper trunk, neck and head, and is usually associated with alcohol abuse; as such, patients usually complain of cosmetic issues. Historically, Madelung's disease is usually encountered in men between 30 and 60 years of age, and is more prevalent in the Mediterranean population. In this case study, we describe a rare case of Madelung's disease, in an Asian patient who presented with symmetrically located bilateral masses in the anterior neck, which grew progressively larger over a period of seven years.

Inflorescence Habits of Different Plant Types in Peanut (땅콩의 초형별 개화습성)

  • 배석복;김종진
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.42 no.6
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    • pp.841-848
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    • 1997
  • This study was conducted to investigate the inflorescence habit mainly on major in farmer's peanut cultivar of the Shinpung plant type "Daekwang" of sequential branching and the Virginia plant type "Daepung" of alternate branching until maximum flowering dates. All flowers of two pairs of opposite branch in "Daekwang" showed almost symmetrical flowering order and in "Daepung" also showed similar tendency though it had somewhat irregalar alternate branching type in opposite branches. The lowest node in each branch had seven flowers while upper nodes had less flowers in this period. The first flower in "Daekwang" was born at first node of second branch of cotyledonary branches compared to those of "Daepung" at first reproductive branch of cotyledonary branches. One pair of cotyledonary branches had two-thirds of total flowers in two cultivars. Dates of average flower proceeding between nodes in each branch of "Daekwang" were appeared 4.32 days in main axil, 1st and 2nd opposite primary branches were 4.44 and 5.13 days, and 1st and 2nd secondary branches were 5.81 and 6.41 days respectively, but "Daepung" showed similar flower proceeding dates in all branches. but "Daepung" showed similar flower proceeding dates in all branches.

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A study on of Magdalens Abakanowicz (Magdalena Abakanowicz의 조형분석연구)

  • Ghim Eon-Bae
    • Journal of Science of Art and Design
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    • v.6
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    • pp.203-225
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    • 2004
  • We are sure that Abakanowicz positively assumes a position of members, which are represented the later modern fabric design. In sprite of his pervasive evaluation, we have doubt about his achievement because the preceding research is insufficient about argumentsuch as dependence on intuitive emotion study, conventional analysis of structure and insufficient inquiry of causa efficiens. We agree that basic structure of is dissipation. Though right and left symmetrical structure is similar, also that structure is different. We can't decide whether structure is unification structure, difference structure or mixture structure . We think that the time of confusing argument of his structure is changing period for disorganization trend. The result of this study confirm the research possibility about space organization with restructure analysis and verification for examining essence structure of sample text . The Thesis are concern that the different between paradigmatic appearances and syntagmatic, which exist . So, we can approach the meaning of system and find dominent point about constructional relationship on the works. The meaning of dominent point is understood about sexless trend or Androgyne, which are appeared Abakanowicz forth work period. The relationship structure which is mixed both issue show that inner issue of work is located the highest position. The paper presents confusing manufacture system, which are suggested man-woman sex and mixed meaning. The other result of this study are, 1. being known as Abakan algorism, Abakanowicz has new drafting idiom from his ancient belief. 2. we need to research the body texture of Abakanowicz with the trend of restructure of body study. 3. we need argue about gender study in relative with poster moderntheology related problem of sexlessness people and perfect sex-people.

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A Study on Aesthetic Category of Dress -Selected period of the Renaissance and the Baroque (복식의 미적 범주-르네상스$\cdot$바로크 복식에 적용하여)

  • Choi, Soo-Hyeon;Kim, Min-Ja
    • Journal of the Korean Society of Costume
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    • v.23
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    • pp.197-209
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    • 1994
  • The purpose of this study is to present a way to analyze and review the subjective view of the aesthetic for dress based on the framework of the aesthetic categories suggested by aesthetics. In order to define objectivism and subjectivism of the aesthetic of dress, theoretical studies on the aesthetic categories of dress were precded. And empirical studies on the aethetic categories of dress for selected period, the Renaissance (16th century) and the Baroque(17 th century). The results were follows : The objectivism of the aesthetic is the point of that an object causes human to feel and judge aesthetically, that is that of dress means judge aesthetically, that is that of dress means formal characteristic of dress and pervasive ideology expressed in dress. the subjectivism of the aesthetic is the point that the aesthetic is ruted in human, that is that of dress has been studied in relation to the image, the aesthetic consciousness m, or the aesthetic categories of dress. Especially, the aesthetic category is one of the universal and valid methods for the analysis of subjectivism of the aesthetic for dress. This study includes beauty, grace, elegance , the sublime, the tragic , the comic, aptness, ugliness as aesthetic categories of dress . Beauty is perfection and rule. Grace pleases human by sense. Elegance comes from the harmony of sense and spirit. the sublime comes into existence that human feels pleasure as well as displeasure simultaneously when human is overehelmed by objects. The tragic is the sense of the present of something valuable even if there is suffering. The comic is the sense of the presence of something amusing even if there is displeasure caused by contradiction. Apteness means utility in terms of the objectivism and , formality in terms of the subejctivism. Ugliness is opposite to beauty. As the result of emperical studies, the aesthetic categories of the Renaissance dress showed harmonious, balanced, and symmetrical beauty, and the magnificent, and enlarged sublime. In addition to these , grace and elegance were also found to some extent. Aesthetic categories of the Baroque dress show feminie, soft, cheerful, and fantastic grace, asymmetric , disarmonious, and extraordinary uglinesss, and the magnificient , grave, and dignified sublime.

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Acceleration of Wound Healing Using Adipose-derived Stem Cell Therapy with Platelet Concentrates: Plateletrich Plasma (PRP) vs. Platelet-rich Fibrin (PRF) (혈소판 농축재제를 이용한 창상치유의 촉진)

  • Hahn, Hyung-Min;Jeon, Yeo-Reum;Rha, Dong-Kyun;Lew, Dae-Hyun
    • Archives of Plastic Surgery
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    • v.38 no.4
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    • pp.345-350
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    • 2011
  • Purpose: Although platelet-rich plasma (PRP) potentiate the wound healing activity of adipose-derived stem cells (ADSCs), its effect cannot be sustained for a prolonged period of time due to short duration of action. This led us to design and produce platelet-rich fibrin (PRF), in an effort to develop a tool which lasts longer, and apply it on wound healing. Methods: Two symmetrical skin defects were made on the back of seven nude mice. ADSCs were applied to each wound, combined with either PRP or PRF. The wound area was measured over 14 days. By day 16, the wound was harvested and histologic analysis was performed including counting of the blood vessel. Results: The healing rate was more accelerated in PRP group in the first 5 days (p<0.05). However, PRF group surpassed PRP group after 6 days (p<0.05). The average number of blood vessels observed in the PRF group was $6.53{\pm}0.51$, compared with $5.68{\pm}0.71$ for the PRP group. Conclusion: PRF exerts a slow yet pervasive influence over the two-week course of the wound healing process. Thus, PRF is probably more beneficial for promoting the activity of ADSCs for a sustained period of time.

Experimental Study on the Thermodynamic Characteristics of Commercial Small-size Moxa Combustion (상용 소형 쑥뜸의 열역학적 특성에 대한 실험적 연구)

  • Lee Geon-Mok;Hwang Yoo-Jin;Lee Gun-Hyee
    • Journal of Acupuncture Research
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    • v.18 no.6
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    • pp.171-187
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    • 2001
  • Objective : Moxibustion has been proved efficacious for many diseases, but isn't widespread in the clinics due to a danger of skin burning, the smoke produced while burning a moxa combustion and so on. Therefore, another type of moxa that can be resolved these troubles is required. To improve the effect of moxibustion and develop the new thermal stimulating treatment, the performance of commercial moxibustion widely used are studied systematically and found out quantitatively. Methods : We have selected two types (small-size moxa A(sMA), small-size moxa B (sMB)) among small-size moxaes used widely in the clinic. We examined combustion time, various temperatures, temperature gradient in each period during a combustion of moxa. Results : 1. The combustion time in the preheating period appeared somewhat longer in sMA than in sMB. 2, The combustion time in the heating period appeared longer in sMA by 26% than in sMB. 3. The average temperature in the heating period was $37.6{\sim}37.8^{\circ}C\;in\;sMA\;and\;36.2{\sim}36.8^{\circ}C$ in sMB and the maximum temperature measured at a center of contact surface in sMA was $48.6^{\circ}C$, higher by over $2.8^{\circ}C$ than that of sMB moxibustion. 4. The average ascending temperature gradient in the heating period was $0.08{\sim}0.1^{\circ}C/sec$ in both moxaes, and the average ascending temperature gradient of heating period in sMB appeared larger. The maximum ascending temperature gradient appeared higher in sMB, and the time reaching maximum ascending temperature gradient appeared much earlier in sMA than in sMB. 5. The combustion time in the retaining period was around 100 sec in sMA and around 275 sec in sMB. 6. The average temperature in the retaining period was $42.2{\sim}46.0^{\circ}C\;in\;sMA\;and\;39.3{\sim}41.4^{\circ}C/sec$ in sMB. The minimum temperature in the retaining period was over $38.80^{\circ}C$ in sMA but just $34.7^{\circ}C$ in sMB. 7. The average descending temperature gradient in sMA was $-0.050{\sim}0.067^{\circ}C/sec$ and in sMB was $-0.030{\sim}0.037^{\circ}C/sec$ 8. The combustion time in the cooling period appeared longer over two times in sMA than in sMB, and the time which the cooling period (minimum temperature) finished at appeared later in sMB by 55 sec. 9. We classified the combustion process that the measured temperature rose over body heat($37^{\circ}C$) into the effective combustion period. The effective combustion time was 233.3 sec in sMA and 300.4 sec in sMB respectively, and was longer by about 29% in sMB. The average temperature and maximum temperature in the effective combustion time appeared higher in sMA. The time taken until the maximum temperature was reached was 225.1 sec in sMA and 244.5 sec in sMB, faster by about 20 sec in sMA. The maximum ascending temperature gradient during the effective combustion period appeared larger about 1.4 times in sMB, but the time when the maximum ascending temperature gradient happened was faster in sMA. Conclusion : It appears that sMB, compared with sMA, is proper if necessary to apply the long time and weak stimulus, because of the gentle stimulus during the relatively longer time. In contrast, sMA that the symmetrical combustion happened is proper if necessary to apply the short time and strong stimulus.

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Determination of Copper in Black, Red Pepper and the Waste Water Samples by a Highly Selective Sensitive Cu(II) Microelectrode Based on a New Hexadentates Schiff's Base

  • Norouzi, Parviz;Ganjali, Mohammad Reza;Faridbod, Farnoush;Salavati-Niasari, Masoud
    • Bulletin of the Korean Chemical Society
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    • v.27 no.9
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    • pp.1439-1444
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    • 2006
  • A $Cu^{2+}$ ion-selective membrane microelectrode has been fabricated from poly vinyl chloride (PVC) matrix membrane containing a new symmetrical hexadentate Schiff,s base 2-{1-(E)-2-((Z)-2-{(E)-2-[(Z)-1-(2-hydroxyphenyl)ethylidene]hydrazono}-1-methylpropylidene)hydrazono]ethyl}phenol (HDNOS) as a neutral carrier, Potassium tetrakis(4-chlorophenyl) borate (KTpClPB) as an anionic excluder and o-nitrophenyloctyl ether (NPOE) as a plasticizing solvent mediator. The microelectrode displays linear potential response in the concentration range of $1.0\;{\times}\;10^{-5}-1.0\;{\times}\;10^{-11}$ M of $Cu^{2+}$. The microelectrode exhibits a nice Nernstian slope of 25.9 ${\pm}$ 0.3 mV $decade^{-1}$ in the pH range of 3.1-8.1. The sensor has a relatively short response time in whole concentration ranges ($\sim$5 s). The detection limit of proposed sensor is $5.0\;{\times}\;10^{-12}$ M (320 pg/L), and it can be used over a period of eight weeks. The practical utility of the sensor has been demonstrated by using it as an indicator electrode in the potentiometric titration of $Cu^{2+}$ with EDTA. The proposed membrane electrode was used for the direct determining of $Cu^{2+}$ content in black and red pepper, and in waste water samples.

A Case Report on Polymyositis Treatment with Ohaeng-Hwa Acupuncture in Korean Medicine (오행화침법(五行和鍼法)을 적용한 다발성 근염 치료 1례)

  • Lee, Byung-Gwon;Kam, Chul-Woo;Park, Dong-Il;Han, Hyun-Young;Lee, Soo-Jung;Kwon, Kyoung-Man;Lee, Young-Jun
    • Korean Journal of Acupuncture
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    • v.27 no.4
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    • pp.119-127
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    • 2010
  • Objectives : Polymyositis is non-hereditary, autoimmune rheumatic disease, and one of the idiopathic inflammatory myopathy. It is characterized by progressive symmetrical proximal muscle weakness. Major clinical signs and symptoms of polymyositis are chronic non-suppurative inflammatation of skeletal muscle, elevation of muscle enzyme, and electromyographical changes. By use of Korean medicine treatments, muscle weakness and normalize muscle enzyme can be improved in case of polymyositis. Methods : A Patient, 32 years old, whom diagnosed with polymyositis on muscle biopsy and electromyographical changes, had medical treatments with Corticosteroids and Immunosuppressants, but no improvement was noted. She was treated with Korean Medicine, especially Ohaeng-Hwa Acupuncture(五行和 鍼法) and Ssanghwa-Tang(雙和湯) for three months period. Results : With Korean Medicine treatment of polymyositis for three months, most of her clinical signs and symptoms have been improved significantly, especially her muscle weakness and muscle enzyme level. Conclusion : This case has been reported to show that Korean medicine treatments have positive effects on polymyositis.

Three-Phase Four-Wire Inverter Topology with Neutral Point Voltage Stable Module for Unbalanced Load Inhibition

  • Cai, Chunwei;An, Pufeng;Guo, Yuxing;Meng, Fangang
    • Journal of Power Electronics
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    • v.18 no.5
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    • pp.1315-1324
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    • 2018
  • A novel three-phase four-wire inverter topology is presented in this paper. This topology is equipped with a special capacitor balance grid without magnetic saturation. In response to unbalanced load and unequal split DC-link capacitors problems, a qusi-full-bridge DC/DC topology is applied in the balance grid. By using a high-frequency transformer, the energy transfer within the two split dc-link capacitors is realized. The novel topology makes the voltage across two split dc-link capacitors balanced so that the neutral point voltage ripple is inhibited. Under the condition of a stable neutral point voltage, the three-phase four-wire inverter can be equivalent to three independent single phase inverters. As a result, the three-phase inverter can produce symmetrical voltage waves with an unbalanced load. To avoid forward transformer magnetic saturation, the voltages of the primary and secondary windings are controlled to reverse once during each switching period. Furthermore, an improved mode chosen operating principle for this novel topology is designed and analyzed in detail. The simulated results verified the feasibility of this topology and an experimental inverter has been built to test the power quality produced by this topology. Finally, simulation results verify that the novel topology can effectively improve the inhibition of an inverter with a three-phase unbalanced load while decreasing the value of the split capacitor.