• 제목/요약/키워드: opposite pattern

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Photosynthetic Patterns of 3 Crassulacean Plants under Drought Conditions

  • Kim, Tae-Jin;Choo, Yeon-Sik
    • Journal of Ecology and Environment
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    • v.30 no.2
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    • pp.187-193
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    • 2007
  • Higher plants can be categorized as C3, C4 or CAM according to their photosynthetic pathways, and some succulent plants are known to shift their patterns of photosynthesis from C3 to CAM in response to environmental stresses such as salt treatment or water deficiency. To investigate fundamental photosynthetic patterns and the induction of pattern shifts (C3, CAM, C3-CAM etc.) as a result of environmental stresses, we measured the water content, diurnal changes in pH, net $CO_2$ exchange, transpiration rate, total ionic contents, and osmolality of Kalancoe daigremontiana, Sedum kamschaticum and Sedum sarmentosum which belong to Crassulaceae known as representative CAM plant, after 10 days of drought treatment. S. kamschaticum and S. sarmentosum did not show a significant difference in diurnal pH variation in the treatment and control conditions. However, the pH of drought-treated Kalancoe was low at night and high in the daytime, with a pH value between 4 and 5. Typical CAM plants display a net $CO_2$ exchange that increases at night and decreases in the daytime. Kalancoe displayed the predicted pattern. However, S. kamschaticum and S. sarmentosum showed a photosynthetic pattern more typical of C3 plants, and did not show changes in photosynthetic pattern under drought stress. Kalancoe also showed a transpiration rate typical for CAM pho-tosynthesis, whereas the transpiration rates of S. kamschaticum and S. sarmentosum were in the typical range for C3 photosynthesis. Kalancoe had high total ionic contents during the night, which decreased somewhat during the daytime, whereas S. kamschaticum and S. sarmentosum displayed the opposite pattern. This result is similar to the diurnal patterns of changes in pH in the three plant species, which suggests a relationship between pH and ionic contents. S. sarmentosum showed lower osmolality under drought stress than in the control condition, whereas the osmolality of Kalancoe and S. kamschaticum did not differ between conditions. S. sarmentosum may have maintained internal water content by lowering its osmolality and raising its total ionic contents. In conclusion, Kalancoe displayed the characteristic responses of a typical CAM plant, whereas S. kamschaticum and S. sarmentosum displayed aspects of the C3 photosynthetic pattern under drought conditions. These results suggest that S. kamschaticum and S. sarmentosum (Crassulacea) in Korea overcome drought stress by increasing solute and ionic contents internally rather than changing their photosynthetic pattern from C3 to CAM under drought stress.

The Influence of the Pattern of Gripping the Ultrasound Head on the Activity of Upper Limb Muscles (초음파 도자를 쥐는 방법이 팔 근육의 근활성도에 미치는 영향)

  • Choi, Seok-Ho;Yi, Chung-Hwi;Jeon, Hye-Sun;Lee, Jeong-Weon
    • Physical Therapy Korea
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    • v.20 no.2
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    • pp.28-37
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    • 2013
  • This study examined differences in the activity of upper limb muscles according to how an ultrasound head is gripped. Twenty-two adult males were participated in the study. Each participant was asked to apply ultrasound treatment on to a lump of pork meat by two different ultrasound head grip patterns: spherical and cylindrical grips. Muscle activity was measured in the extensor carpi radialis longus (ECRL), flexor carpi ulnaris (FCU), and pronator teres (PT), triceps brachii (TB), middle deltoid (MD), and upper trapezius (UT) muscles. There were no significant differences in the EMG signals of any muscle according to the ultrasound head grip pattern (p>.05). There were significant differences in the EMG signal of each type of muscle (p<.05). The EMG signal of UT was the lowest and that of TB was lower than ECRL and FCU. There were interactions between ECRL and FCU, between ECRL and PT, between FCU and ECRL, and between FCU and MD. The EMG signal of ECRL using the cylindrical head was low and that of FCU with the cylindrical head was high, while the opposite was the case with the spherical head ($p_{adj}$ <.05/15). The results of this study indicate that the wrist muscles worked actively when the participants applied ultrasound therapy using both spherical and cylindrical heads. A spherical head might induce imbalanced muscle activity among the wrist muscles, leading to deviation of the wrist joint. Therefore, the cylindrical head is recommended for ultrasound therapy because it produced a constant, repeated force.

Water Temperature and Salinity Variation Analysis in the Inter-Tidal Zone, South of Ganghwado, Korea (강화도 남단 조간대에서의 수온 및 염분 변동양상 분석)

  • Cho, Hong-Yeon;Koo, Bon-Joo
    • Journal of Korean Society of Coastal and Ocean Engineers
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    • v.20 no.3
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    • pp.310-320
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    • 2008
  • Water temperature and salinity variation patterns were analysed using the CTD data measured in the Yeochari, Dongmakri and Donggeomdo intertidal zone, south of Ganghwado. Only the data during the submersion period of the measurement stations were used in this analysis. It is clearly shown that the correlation between air and water temperatures is very low and the water temperature variation shows clearly the opposite patterns as the tidal elevation increases and decreases. Whereas, the salinity change shows the similar pattern of the tidal elevation change pattern because the salinity change pattern could be described as the increasing function from the shoreline to offshore regions due to the continuous ground-water inflow in the adjacent watersheds. The salinity is increased from the submersion time to the high tide and decreased from the high tide to the exposure time.

A Study on Overabundant Qi And Retaliating Qi Of Five Circuits And Six Qi (운기(運氣)의 승복(勝復)에 관한 연구(硏究))

  • Yun, Chang-yeol
    • Journal of Korean Medical classics
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    • v.31 no.1
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    • pp.79-93
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    • 2018
  • Objectives : The climate changes in the natural realm displays pheonomena of excess and deficiency due to the principle of Yiyinyiyangzhiweidao. Here, overabundant qi arises due to the works of multiplication and insultation. When this overabundant qi is in force, the retaliating qi appears without fail to create a parallel. This is the Autonomous Equilibrium Mechanism found in the natural world. Studying this mechanism is deeply significant in understanding the mechanisms of diseases. Methods : The paper is written by reviewing the texts found in Huangdineijing's Chapters of Yunqi, which are $Q{\grave{i}}jiaobiandalun$, Wuchangzhengdalun, $Liuyuanzhengj{\grave{i}}dalun$, Zhizhenyaodalun, and Suwenliuqixuanzhumiyu. Results & Conclusions : The overabundance and retaliation in Five Circuits take the form of the restrained child of the Five Circuits takes revenge on the overabundant qi on behalf of his mother. The overabundance and retaliation in Six Qi take the form of rapid healing of Benqi which was in stagnation. Traditionally, overabundant qi is the only one in existence when the Five Circuits are in excess and the year of Hai yin wu wei you xu's regular transformation. During this time, retaliating qi does not exist. When Five Circuits are in deficiency and in the year of Si shen zi chou mao chen's pattern transformation, both the overabundant and deficiency qis exist. However, regardless of regular transformation or pattern transformation, overabundant qi and retaliating qi cannot exist at the same time. This seems to be the rational conclusion. There are some regulations that overabundance and retaliation follow. First, the strong and weak, and number of days coincide. Second, overabundance qi appear during the first half of the period when the qi of controling heaven is in place. During the later half of the period when the qi of terrestrial effect is in force, retaliation qi is the one that appears. Third, overabundance and retaliation does not end with one time. Rather, they will continue to repeat appearance and disappearance without any set pattern. Fourth, the overabundance and retaliation of the guest qi and dominant qi only has overabundance and no retaliation.

A Study on the Control of Asymmetric Sidelobe Levels and Multiple Nulling in Linear Phased Array Antennas (선형 위상 배열 안테나의 비대칭 Sidelobe 레벨 제어 및 다중 Nulling에 관한 연구)

  • Park, Eui-Joon
    • The Journal of Korean Institute of Electromagnetic Engineering and Science
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    • v.20 no.11
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    • pp.1217-1224
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    • 2009
  • This paper newly proposes a methodology towards computing antenna element weights which are satisfying asymmetric sidelobe levels(SLLs) specified arbitrarily on both sides of the main beam pattern, in the linear phased array antenna pattern synthesis problem. Opposite to the conventional methods in which the element weights are directly optimized from the array factor, this method is based on the optimum perturbations of complex roots inherent to the Schelkunoff's polynomial form which is described for the array factor. From the proposed methodology, the capability of nulling the directions of multiple jammers is also possible by independently perturbing only the complex roots corresponding to each jamming direction, hence allowing an enhancement of the simplicity of the numerical procedure by means of a proper reduction of the dimension of the solution space. The complex weights over the array are then easily computed by substituting the optimally perturbed complex roots to the Schelkunoff's polynomial. Some examples are examined and numerically verified by substituting the extracted weights into the array factor equation.

An Experimental Study on the Fire Investigation to the Broken Plane Types of Glass (유리 파단면의 화재감식에 관한 실험적 연구)

  • Mun, Yong-Soo;Kong, Ha-Sung
    • Journal of the Korea Safety Management & Science
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    • v.10 no.4
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    • pp.105-109
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    • 2008
  • The purpose of this study is to distinguish the causes of broken glass on doors or windows when it is originally kept among the remains on the floor in fire site - whether it was broken due to heating or outer power-through test and characteristics of the broken plane including the pattern on the plane. Addition to it, the study tries to find characteristics to judge the point and direction of breakdown through the analysis of glass broken by outer power. With two assumed causes - a) breakdown due to heating and b) breakdown due to outer power-3 pieces of glass plates ($30cm{\times}30cm{\times}5mm$) were tested for each case, getting the results as following: First, for the glass broken due to the change of temperature, the broken plane is of slow and smooth curve without any pattern. Second, for the glass broken due to outer power, with the impact point as the center, the glass shows breakdown of radial type and the side shows breakdown of near-perpendicular type. The far the broken piece is from the impact point, the bigger the size is. The broken piece at the impact point is of long triangle type and the two long planes of the triangle shows semi-arc with the center of breakdown point and the other plane shows opposite pattern. Third, when glass that is damaged by outer power is heated, damaged forms and side patterns of the glass that is damaged by outer power are heated and disappeared.

Time-series Change in Gyeongpo Beach Shoreline in 2009 and 2010 (2009-2010년 경포 해수욕장 해안선의 시계열 변화)

  • Lee, Chung-Il;Han, Moon-Hee;Jung, Hae-Kun;Kim, Sang-Woo;Kwon, Ki-Young;Jeong, Hee-Dong;Kim, Dong-Sun;Park, Sung-Eun
    • Journal of Environmental Science International
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    • v.20 no.11
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    • pp.1425-1435
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    • 2011
  • Time-series change in Gyeongpo beach shoreline was illustrated using DGPS(Differential Global Positioning System, resolution < 0.6m) observation from April, 2009 to April, 2010. The shoreline was subdivided into 12 areas, and westward and eastward movement of shoreline position at each area was calculated. In general, the shoreline moved toward sea during summer, and it moved toward land during winter. The southern and northern part of the shoreline had different pattern in time-series. The shoreline in the southern part moved toward sea during summer and moved toward land during winter, but time-series pattern of the shoreline in the northern part was more complicated than that in the southern part. Pattern of time-series change in the northern part was made up of three different types; the first is that the shoreline moves continuously toward land, and the second thing is that the shoreline's movement is the opposite to the southern part, and the third thing is that the shoreline maintains a state of equilibrium without any great fluctuation. The total length of the shoreline was the largest during winter and the smallest during summer. In general, time-series change in the shoreline had positive(+) relationship with sea surface pressure and wind speed.

A Study on the Emotional Evaluation Model of Color Pattern Based on Adaptive Fuzzy System (적응 퍼지 시스템을 이용한 칼라패턴 감성 평가 모델에 관한 연구)

  • 엄경배
    • Journal of the Korean Institute of Intelligent Systems
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    • v.9 no.5
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    • pp.526-537
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    • 1999
  • In the paper. we propose an evaluation model based the adaptive fuzzy systems, which can transform the physical features of a color pattern to the emotional features. The model is motivated by the Soen's psychological experiments, in which he found the physical features such as average hue, saturation, intensity and the dynamic components of the color patterns affects to the emotional features represented by a pair of adjective words having the opposite meanings. Our proposed model consists of two adaptive fuzzy rule-bases and the y-model, a l i r ~ r ys et operator, to fuze the evaluation values produced by them. The model shows con~parablep erformances to the neural network for the approximation of the nonlinear transforms, and it has the advantage to obtain the linbwistic interpretation from the trained results. We believe the evaluated results of a color pattern can be used to the emotion-based color image retrievals.

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A Study on the Application of PPLT(Protected/Permitted Left-Turn) Considering the Traffic Characteristics of PLT/PPLT (보호좌회전과 보호/비보호 겸용 좌회전 통행특성 차이를 고려한 보호/비보호 겸용 좌회전 적용방안에 관한 연구)

  • Nam, Sang-bum;Kim, Ju-hyun;Shin, Eon-kyo
    • The Journal of The Korea Institute of Intelligent Transport Systems
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    • v.19 no.4
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    • pp.30-44
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    • 2020
  • The application of PPLT is difficult to analyze and judge only from the effects of the delay time. In this study, the application of PPLT was proposed using not only the delay time of PLT and PPLT due to the change in traffic volume and the number of opposite straight lanes but also the traffic volume of passing a left turn and the number of conflict risks as indicators. According to the analysis, the more left-turn traffic than capacity and the less opposite-straight volume, the greater the PPLT effect. On the other hand, if the left-turn traffic is below capacity, the delay time will be reduced partially, but the overall passing left turn volume will not increase, and the conflict risk will increase. In addition, the conflict risk increases in the third lane or higher. Moreover, the difference of passing left-turn volume between PLT and PPLT showed a pattern similar to the delay time difference, and the PPLT coverage was wider than the difference in delay time and was associated more with the conflict risk numbers. Therefore, it would be reasonable to use passing left-turn traffic primarily, consider the delay time below the left-turn capacity, and consider the conflicting risk numbers simultaneously at or above the opposite straight three lanes.

A Study of the Case Record on Dyspnea and Wheezing Asthma Recorded in Xu Ming Yi Lei An ((${\ll}$속명의류안(續名醫類案)${\gg}$에 기재(記載)된 천(喘) 및 효천(哮喘)에 관(關)한 의안(醫案) 연구(硏究))

  • Lee, Ju-Il
    • Herbal Formula Science
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    • v.15 no.1
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    • pp.49-105
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    • 2007
  • Objectives : Select and analyze the case record of dyspnea and wheezing asthma recorded in Xu Ming Yi Lei An that is the most abundant and wide in contents in existing case records that are systematic, comprehending relatively modern Traditional Chinese Medicine to secure more deep and objective basis of Traditional Chinese Medicine approach for dyspnea and wheezing asthma to analyze and review possibility for clinical application in this study. Methods: The study was conducted with the case records of dyspnea and wheezing asthma in whole Xu Ming Yi Lei An. Pattern identify and classify selected case records and again classified with deficiency syndrome and excess syndrome. Also analyzed prescriptions and herbs used in the case records. Nature of herbs and properties and flavors that were used in the case records were classified and frequency of each nature of herbs were analyzed. Applicable case records were interpreted and suggested prescriptions, pulse feelings, pattern classification were analyzed and described. Results : Among the 5254 case records stated on the complete collection, it is researched that there are 63 case records for the symptom complex of dyspnea as 1.2% of the whole case records, and the case records on the symptom complex of wheezing asthma are 14 as the 0.27% of the total examples. 63 case record examples related with symptom complex of dyspnea were pattern identified and classified. As a result, deficiency syndrome of the Kidney(33 %), deficiency syndrome of the Spleen(26.0%), Wind-Cold(12.3%), phlegm turbidity(12.3%), Heat in the Lung(8.2%), asthenia of the Lung(8.2%) were investigated as above order. 14 case record examples related with wheezing asthma were pattern identified and classified. As a result, phlegm-Heat(26.3%), upper excess and lower deficiency(26.3%), external affections Wind-Cold(15.8%), Dampness-phlegm(10.5%), Lung asthenia(10.5%), Cold phlegm(5.3%), mutual deficiency and detriment of Heart and Kidneys(5.3%) were investigated as above order. Symptom complex of dyspnea has 67.1% of deficiency syndrome, 32.9% of excess syndrome resulting more deficiency syndrome than excess syndrome. Symptom complex of wheezing asthma has 42.1 % of deficiency syndrome and 57.9% of excess syndrome resulting more excess syndrome than deficiency syndrome. In case of symptom complex of dyspnea prescription used in the case record, the order of frequency is as following. Palmijihwang-tang, Bojung-ikgitang, Yungmijihwang-tang, Ijintang, Sojaganggitang, Igongsan. In case of symptom complex of wheezing asthma prescription in the case record, Yungmijihwang-tang, Ohotang, Dodamtang were mostly used. Herbs used in case records of symptom complex of dyspnea are Ginseng Radix, Poria, Glycyrrhizae Radix, Aconiti Iateralis Preparata Radix, Atractylodis Macrocephalae Rhizoma, Dioscoreae Rhizoma, Angelicae Gigantis Radix, Rehmanniae Radix Preparat, Pinelliae Rhizoma, Zingiberis Rhizoma Recens are mostly used. Nature of herb properties used for symptom complex of dyspnea and symptom complex of wheezing asthma are herbs that are warm properties. When the symptom complex of dyspnea and the symptom complex of wheezing asthma were treated. if the patient felt tenderness at Pyesu, doctors conducted pricking blood around the opposite Pyesu or Sipseon acupoint. when the patient didn't have tenderness at Pyesu by soft press, pricking blood was performed both sidees, right and left Pyesu. In case of the treatment of symptom complex of dyspnea and symptom complex of wheezing asthma, when they got treatment, when the symptom complex of disease is severe, a doctor cauterized the opposite Pyesu while the other Pyesu felt tenderness, and decided how the above treatment is performed whether the degree of the symptom compolex of disease is severe or not. In case of the treatment of symptom complex of dyspnea and symptom complex of wheezing asthma, if the person felt tenderness at Pyesu and is caught by the Wind-Cold pathogen, slight acupuncture is treated at relevant Pyesu with Fire needling. When patient with symptom complex of dyspnea and symptom complex of wheezing asthma cannot hawk sputum up from the oral and laryngopharynx, suction method is treated. Conclusion : With this study, actual traditional and clinical pattern identification form and characteristics of symptom complex of dyspnea and symptom complex of wheezing asthma were recognized. Modern case report utilizing in clinical application need to be secured and an incurable disease asthma need to be diagnosed and improvement for treatments have to be searched through other case records.

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