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The nuclear medical study on the effect of Hap-Kok(LI4) Acupuncture on cerebral blood flow (합곡(合谷) 침자(鍼刺)가 뇌혈류에 미치는 영향에 대한 핵의학적 고찰)

  • Yang Yoo-Sun;Kim Sung-Jin;Hwang Yoo-Jin;Lyu Dong-Soo;Kim Min-Ja;Cho Eun-Hee;Kim Hyun-Jung;Yang Myeong-Bok;Lee Beung-Cheul;Lee In;Lee Geon-Mok
    • Journal of Acupuncture Research
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    • v.18 no.6
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    • pp.93-104
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    • 2001
  • Objective : To localize and compare the cerebral regions- activated by the the stimulation of traditional and burning acupunctures in right Hap-Kok (LI4) acupoints. Methods : Thirty-four healthy normal volunteers (19 males, 15 females, age 31${\pm}$11 years) were studies by rest/acupuncture Tc-99m HMPAO SPECT using same-dose sequential injection method using right Hap-Kok(LI4), traditional and burning acupunctures. All images were spatially normalized and the differences between rest and acupuncture activation state were statistically analyzed using SPM 96. Results : Statistical analysis of the effect by the stimulation using traditional acupuncture in right L14 showed regional cerebral perfusion increase in right inferior frontal lobe, right straight gyrus, left anterolateral frontal lobe, left anteroinferior temporal lobe, left posterior temporal lobe, and left cerebellum. In the stimulation using burning acupuncture in right LI4, regional cerebral perfusion increased in right posterior prefrontal lobe, right precental gyrus, right postcentral gyrus, right poteroinferior temporal lobe, left precentral gyrus, left Broca's area, left anterior parietal lobe, left posterior prefrontal lobe, and left cerebellum. In right LA, diffuse perfusion increase were noted in the both inferior frontal lobe by traditional acupuncture compared to burning acupuncture. Conclusion : The results localized the cerebral areas showed the effect of the acupuncture on cerebral blood flow. The effects of traditional and burning acupunctures on cerebral blood flow were similar in right Hap-Kok (LI4) acupoints. But the effects of traditional acupunctures on cerebral blood flow are stronger than those of burning acupunctures on cerebral blood flow.

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Ferroelectric Properties of Pb[(Zr,Sn)Ti]N$bO_3$ Thin Films by Annealing (열처리에 따른 Pb[(Zr,Sn)Ti]N$bO_3$ 박막의 강유전 특성)

  • Choe, U-Chang;Choe, Hyeok-Hwan;Lee, Myeong-Gyo;Gwon, Tae-Ha
    • Journal of the Institute of Electronics Engineers of Korea SD
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    • v.38 no.7
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    • pp.473-478
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    • 2001
  • Ferroelectric P $b_{0.99}$[(Z $r_{0}$ 6S $n_{0.4}$)/0.9/ $Ti_{0.1}$]0.98/N $b_{0.02}$ $O_3$(PNZST) thin films were deposited by a RF magnetron sputtering on L $a_{0.5}$S $r_{0.5}$Co $O_3$(LSCO)/Pt/Ti/ $SiO_2$/Si substrate using a PNZST target with excess PbO of 10 mole%. The crystallinity and electrical properties of the thin films annealed at various temperature and time were investigated. The thin films deposited at the substrate temperature of 500 $^{\circ}C$ and the power of 80 W were crystallized to a perovskite phase after rapid thermal annealing(RTA). The thin films annealed at 650 $^{\circ}C$ for 10 seconds in air exhibited the good crystal structures. The remanent polarization and coercive field of the PNZST capacitor were about 20 $\mu$C/$\textrm{cm}^2$ and 50 kV/cm, respectively. The reduction of the polarization after 2.2$\times$10$^{9}$ switching cycles was less than 10 %..10 %......

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Stability of antibody during heat treatment and storage in immunized milk with Helicobacter pylori antigen (Helicobacter pylori 항원을 이용한 면역우유의 열처리와 저장 중 항체의 안전성)

  • Jeong Eun-Ju;Park La-Young;Bae Man-Jong;Lee Shin-Ho
    • Food Science and Preservation
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    • v.13 no.2
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    • pp.223-227
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    • 2006
  • Optimal heat treatment conditions for maintaining the immune-activity of immunized milk with Helicobacter pylori antigen were studied Total bacterial count of immunized milk with H. pylori antigen decreased according to the increasing heating temperature and time. The viable tell number of immunized milk was $10^3\;CFU/mL$ after heat treatment for 30 min at $60^{\circ}C$, and coliform bacteria did not appear in immunized milk after heat treatment Immune-activity measured in terms of IgG concentration was maintained up to 99.99% after heat treatment for 30min at $60^{\circ}C$, but decreased rapidly below 50% after heat treatment above $70^{\circ}C$. The quality characteristics of immunized milk were examined during storage at $2^{\circ}C,\;4^{\circ}C\;and\;10^{\circ}C$. The pH, titratable acidity and total bacterial count were not changed significantly during 21 day storage at $2^{\circ}C\;and\;4^{\circ}C$, but rapidly changed after 7 day storage at $10^{\circ}C$. The immune-activity was kept well for 14 day storage at $2^{\circ}C,\;4^{\circ}C\;and\;10^{\circ}C$ but decreased rapidly after 14 days at every temperatures tested.

Observational Characteristics of East Asian Monsoon during the Summers of 1993 and 1994 (1993, 1994년 여름철 동아시아몬순의 관측 특성)

  • Kim, Baek-Jo;Ryu, Chan-Su
    • Journal of the Korean earth science society
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    • v.23 no.4
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    • pp.369-379
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    • 2002
  • The characteristics of the East Asian summer monsoon circulation associated with the cool and wet summer of 1993 and the warm and dry summer of 1994 are investigated by analyzing the atmospheric circulations features in the upper and lower troposphere and by examining the global SST and associated tropical convective precipitation fields. The negative geopotential height anomalies at 500 hPa and 200 hPa in 1993 over East Asia, the central North Pacific, and the western United States were replaced by positive ones in 1994. In addition, the 200 hPa zonal wind anomaly averaged over the East Asian summer monsoon region is negatively correlated with the Korean summer temperature anomaly. The subtropical jet stream in 1993 was displaced into the central part of Korea well south of its normal position. The western Pacific subtropical high was shifted southward, and the East Asian summer rainfall and temperature was above-normal and below-normal, respectively due to the southwestward extension of a cold and dry polar airmass from the Sea of Okhotsk to the Est Sea. In contrast, the subtropical jet stream in 1994 was displaced well north of its normal position. The abrupt northward shift of the western Pacific subtropical high was accompanied with the rapid northward movement of the rain band of the East Asian summer monsoon rainfall. The anomaly patterns of the East Asia summer rainfall and temperature were opposite to those of 1993. Large sea surface temperature anomalies of opposite signs existed in the tropical Pacific with a mature El $Ni{\~{n}o$ in 1993 and a weak La $Ni{\~{n}a$ condition in 1994. The role of the anomalous convective precipitation in the western Pacific and the Indian Ocean related with the variations in the low-level cross-equatorial flow along the northwestern periphery of the Australian high and the Mascarene high is probably to influence a large-scale atmospheric circulation over the East Asia during both the years.

Application of Waste Concrete Powder as Silica Powder of Cement Extruding Panel (시멘트 압출패널의 규사분말 대체재로서 폐콘크리트 미립분의 활용)

  • Kim, Jin-Man;Kim, Kee-Seok;La, Jung-Min;Choi, Duck-Jin
    • Journal of the Korean Recycled Construction Resources Institute
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    • v.6 no.1
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    • pp.88-94
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    • 2011
  • To make recycling aggregate, quantity of fine particles increase due to multi-crushing. Though this particles were mixed with recycling aggregate, those have to be disparted from aggregate in the high quality recycling aggregate, because of the cause of low quality. Considering reactivity, fine particles is better than coarse one. Therefore, it needs to develop suitable usage. We try to make cement extruding material by using the fine particles from concrete recycling, as a silicious replacement. Test results are as follows ; 1) Waste concrete powder has major ingredients such as $SiO_2$ and CaO, its density is $2.45g/cm^3$ being similar to silica powder, its diameter is range 13 to $141{\mu}m$. 2) Considering to strength properties according to particle size, specimen was made using small particles is higher strength than large one. 3) Despite of exception in the autoclaved curing, when the replacement of waste fine particle increase, strength of extruding panel shows almost same level.

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Zur Sruktur der Nazisprache (나치언어의 구조)

  • Kim Tschong-Young
    • Koreanishche Zeitschrift fur Deutsche Sprachwissenschaft
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    • v.8
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    • pp.223-245
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    • 2003
  • In dieser Arbeit wird der Versuch unternommen, die Struktur der Nazisprache zu analysieren. Nazisprache hat die Aufgabe, die Ideologie des Nationalsozialisrnus zu rechtfertigen und zu starken. Um diese Aufgabe zu realisieren, haben sich die Nationalsozialisten viel bemuht Im zweiten Abschnitt wird die Charakteristk dieser Sprache $erw\"{a}hnt$ Hier handelt es sich urn den Hintergrund der Nazisprache und Sprachlenkung im Nationalsozialismus. Im Abschnitt drei wird die syntaktische Struktur der Nazisprache beschrieben. Syntaktisch betrachtet, kann man in der Nazisprache $a\"{u}ffallende$ Struktur feststellen, und zwar eine hohe Frequenz von Adjektiv- Attributen, Adverbiale und Superlative. Bei den Adjektivattributen $la{\ss}t$ sich eine Reihe interessanter Entwicklungen beobachten. In vielen $F\"{a}llen$ tendieren die Attributionen zur idiomatischen Verfestigung. Im Bereich des Adverbs finden $auff\"{a}llige$ Verschiebung statt Adverbien $geh\"{o}ren$ zu den wichtigsten Mitteln, um die Haltung des Sprechers $gegen\"{u}ber$ einem $ge\"{a}u{\ss}erten$ Sachverhalt auf die situativen Bedingungen, insbesondere auf die Haltung und Erwartungen der Adressanten, abzustimmen. Und $auff\"{a}lig$ ist die $H\"{a}ufungwie$ beispie!sweise am von Superlativen auf engern Raum. Durch den inflationaren Gebrauch der superlativischen $Ausdr\"{u}cke$ verlieren im $Bewu{\ss}tsein$ des nationalsozialistischen Redners $allm\"{a}hlich$ ihre $F\"{a}higkeit$, den qualitativen Extremwert eines Sachverhalts zu bezeichnen. Deshalb grief vor allem Hitler schon fruh zu starkeren Mitteln, indem er die Gradative des genannten Typs in den Superlativ setzt. Im Abschnitt vier wird die lexikaIische Struktur der Nazisprache beschrieben. Wahrend des Dritten Reiches war die Entwickiung auf den Wortschatz in lexikalischen Bereichen erheblich, wie beispielsweise am Gebrauch der $Modew\"{o}rter$, die sich auf ideologische, dynamische und $milit\"{a}rische$ Terminologie bezogen sind, am Gebrauch $altert\"{u}mlicher$ $W\"{o}rter$ und am Gebrauch von $Fremdw\"{o}rter$. In der Zeit des Natioalsozialismus bedienten sich die NationaIsoziaIisten neben vieIen $Modew\"{o}Iter$ veralteter $W\"{o}Iter$ zur Kennzeichnung von $\"{A}mtern$ und Einheiten, um dem Regime eine historische $Legitimit\"{a}t$ zu verschaffen. Und sie gebrauchten auch $Fremdw\"{o}rter$ sehr haufig, um ihren Reden einen pseudowissenschaftlichen Anstrich zu geben.

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Mechanical evaluation of the use of conventional and locking miniplate/screw systems used in sagittal split ramus osteotomy

  • Santos, Zarina Tatia Barbosa Vieira;Goulart, Douglas Rangel;Sigua-Rodriguez, Eder Alberto;Pozzer, Leandro;Olate, Sergio;Albergaria-Barbosa, Jose Ricardo
    • Journal of the Korean Association of Oral and Maxillofacial Surgeons
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    • v.43 no.2
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    • pp.77-82
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    • 2017
  • Objectives: The aim of this study was to compare the mechanical resistance of four different osteosyntheses modeled in two different sagittal split ramus osteotomy (SSRO) designs and to determine the linear loading in a universal testing machine. Materials and Methods: An in vitro experiment was conducted with 40 polyurethane hemimandibles. The samples were divided into two groups based on osteotomy design; Group I, right angles between osteotomies and Group II, no right angles between osteotomies. In each group, the hemimandibles were distributed into four subgroups according to the osteosynthesis method, using one 4-hole 2.0 mm conventional or locking plate, with or without one bicortical screw with a length of 12.0 mm (hybrid technique). Each subgroup contained five samples and was subjected to a linear loading test in a universal testing machine. Results: The peak load and peak displacement were compared for statistical significance using PASW Statistics 18.0 (IBM Co., USA). In general, there was no difference between the peak load and peak displacement related to osteotomy design. However, when the subgroups were compared, the osteotomy without right angles offered higher mechanical resistance when one conventional or locking 2.0 mm plate was used. One locking plate with one bicortical screw showed higher mechanical resistance ($162.72{\pm}42.55N$), and these results were statistically significantly compared to one conventional plate with monocortical screws (P=0.016) and one locking plate with monocortical screws (P=0.012). The difference in peak displacement was not statistically significant based on osteotomy design or internal fixation system configuration. Conclusion: The placement of one bicortical screw in the distal region promoted better stabilization of SSRO. The osteotomy design did not influence the mechanical behavior of SSRO when the hybrid technique was applied.

Astronomy experiments using digital instruments (디지털 장비를 이용한 천문 실험)

  • Lee, Sang Hyun;Lee, Kyung Hoon;Lee, Enjung;Park, Joo Hyun;Jang, Kyu Bin;Lee, Dongho;Jo, Hyungyu;Lee, MinWook;Kim, Ga Hyung;Ku, Minjun;Seol, Jinwoo;Kim, Dong Ju;Kin, KangJin;Park, Gyutae;Kim, Do-Hoon;Kim, Do Yun;Lee, Sumin;Moon, SeongKeong;Shin, LaEl;Choi, Joonyoung;Ahn, Jaehyung;Choi, Wonseok;Kim, ChiYoung;Park, Jeong Hyeon;Jo, Se Hyeun;Shin, Kwan Hun
    • The Bulletin of The Korean Astronomical Society
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    • v.41 no.1
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    • pp.63.4-64
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    • 2016
  • 본 발표에서는 DSLR 카메라와 CCD를 이용하여 과학고등학교의 R&E교육과정에서 수행한 몇 가지 실험과 그 결과를 소개한다. DSLR 카메라와 SQM을 이용한 밤하늘 특성 분석, CCD를 이용한 고유운동 측정, DSLR을 이용한 산개성단의 측광, CCD를 이용한 산개성단의 측광과 이를 통한 산개성단의 질량분리와 역학적 진화에 대한 연구이다. 실험은 부산일과학고, 울산과학고, 부산과학고에서 수행되었으며, 모든 실험의 결과는 학생들이 직접 관측한 결과를 바탕으로 이루어졌다. 본 실험의 방법과 과정은 일선 학교에서 응용하여 활용될 수 있으며, 실험의 결과는 향후 유사한 실험 교육을 수행할 때 기초 자료로 활용되어 질 수 있다.

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Effect of Prunus mume Byproduct Obtained from Liqueur Manufacture on Quality Characteristics of Noodles (국수의 품질에 미치는 매실 리큐르 제조 부산물인 매실과육의 첨가효과)

  • Park, La-Young;Chae, Myoung-Hee;Lee, Shin-Ho
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.35 no.10
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    • pp.1461-1466
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    • 2006
  • The objective of this research was to investigate the potential use of Prunus mume liqueur byproduct (PLB) as an ingredient in noddle processing. After boiling, the weight and volume of PLB added noodles and turbidity of the noodle soup decreased significantly, compared with those of the control. In sensory evaluation, appearance and color scores of the noodle with PLB were lower than those of the control. However, scores for texture, flavor, taste and overall acceptability were higher in the noodle with PLB than in the control. The pH value of the noodle decreased with increase of PLB concentration and did not change during storage for 30 days at $10^{\circ}C$. Changes of titratable acidity in the noodle with PLB showed the same trend as pH. The surface of the noddle was covered with mold in the control and 10% PLB added noodle after 15 days storage at $10^{\circ}C$. However, the noodle with 20% and 30% PLB did not how significant increase in total bacteria up to 30 days at $10^{\circ}C$.

Degradation from Polishing Damage in Ferroelectric Characteristics of BLT Capacitor Fabricated by Chemical Mechanical Polishing Process (화학적기계적연마 공정으로 제조한 BLT Capacitor의 Polishing Damage에 의한 강유전 특성 열화)

  • Na, Han-Yong;Park, Ju-Sun;Jung, Pan-Gum;Ko, Pil-Ju;Kim, Nam-Hoon;Lee, Woo-Sun
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 2008.06a
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    • pp.236-236
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    • 2008
  • (Bi,La)$Ti_3O_{12}$(BLT) thin film is one of the most attractive materials for ferroelectric random access memory (FRAM) applications due to its some excellent properties such as high fatigue endurance, low processing temperature, and large remanent polarization [1-2]. The authors firstly investigated and reported the damascene process of chemical mechanical polishing (CMP) for BLT thin film capacitor on behalf of plasma etching process for fabrication of FRAM [3]. CMP process could prepare the BLT capacitors with the superior process efficiency to the plasma etching process without the well-known problems such as plasma damages and sloped sidewall, which was enough to apply to the fabrication of FRAM [2]. BLT-CMP characteristics showed the typical oxide-CMP characteristics which were related in both pressure and velocity according to Preston's equation and Hernandez's power law [2-4]. Good surface roughness was also obtained for the densification of multilevel memory structure by CMP process [3]. The well prepared BLT capacitors fabricated by CMP process should have the sufficient ferroelectric properties for FRAM; therefore, in this study the electrical properties of the BLT capacitor fabricated by CMP process were analyzed with the process parameters. Especially, the effects of CMP pressure, which had mainly affected the removal rate of BLT thin films [2], on the electrical properties were investigated. In order to check the influences of the pressure in eMP process on the ferroelectric properties of BLT thin films, the electrical test of the BLT capacitors was performed. The polarization-voltage (P-V) characteristics show a decreased the remanent polarization (Pr) value when CMP process was performed with the high pressure. The shape of the hysteresis loop is close to typical loop of BLT thin films in case of the specimen after CMP process with the pressures of 4.9 kPa; however, the shape of the hysteresis loop is not saturated due to high leakage current caused by structural and/or chemical damages in case of the specimen after CMP process with the pressures of 29.4 kPa. The leakage current density obtained with positive bias is one order lower than that with negative bias in case of 29.4 kPa, which was one or two order higher than in case of 4.9 kPa. The high pressure condition was not suitable for the damascene process of BLT thin films due to the defects in electrical properties although the better efficiency of process. by higher removal rate of BLT thin films was obtained with the high pressure of 29.4 kPa in the previous study [2].

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