• Title/Summary/Keyword: Distribution pattern

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Analysis of Productivity in Rice Plant - (III) Dynamic Change of Canopy Structure - (벼의 생산력 분석 - (III) 군락구조의 동적변화 -)

  • Park, Hoon;Park, Young-Sun
    • Applied Biological Chemistry
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    • v.15 no.1
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    • pp.41-47
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    • 1972
  • Comparative study on dynamic change of canopy structure during ripening period were carried out by using newly bred high yield rice cultivar (IR 667-Suwon 213) and a commercial variety, Jinhung in relation to nitrogen nutrition. The results were as follows. 1. Canopy structure pattern (vertical distribution of dry matter density at heading)was vertical type for Jinhung and horizontal type for IR 667. 2. The vertical distribution pattern of leaf area density (or weight) in the canopy was central dominant type for IR 667 while apical dominant type for Jinhung. 3. Canopy conservation pattern and percent distribution pattern of leaf area density followed the vertical distribution pattern of leaf area density. 4. Canopy persistence was weaker in IR 667, thus they have smaller canopy conservation ratio indicating faster senescence. 5. Slow supply of nitrogen (sulfur coated urea) showed a trend to change the apical dominant pattern into the central dominant pattern by the conservation of central portion, and it-resulted in higher yield though nitrogen nutrition did little affect canopy pattern. 6. The central and apical dominant pattern appeared to be well matched to the upper leaf-dependent type and the lower leaf-dependent type of grain yield, respectively.

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The Comparison of Pattern Identification Diagnosis According to Symptom Scale Based on Obesity Pattern Identification Questionnaire (한방비만병증 설문지를 바탕으로 증상 척도에 따른 변증진단 비교)

  • Kang, Kyung-Won;Moon, Jin-Seok;Kang, Byung-Gab;Kim, Bo-Young;Shin, Mi-Sook;Choi, Sun-Mi
    • Journal of Korean Medicine for Obesity Research
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    • v.9 no.1
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    • pp.37-44
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    • 2009
  • The study was to investigate the distribution for the diagnosis of pattern identification questionnaire and agreement rate between diagnosis of pattern identification based on obesity pattern identification questionnaire and the clinical diagnosis of pattern' identification by medical specialist. The distribution for the diagnosis of pattern identification based on obesity pattern identification questionnaire was shown in order of stagnation of liver Gi, retention of undigested food, deficiency of Yang at scale of 5, 3, 2 score and the diagnosis rate of single pattern identification at scale of 5, 3, 2 score was 89.96%, 79.33%, 54.64%, respectively the agreement rate between the diagnosis of pattern identification based on obesity pattern identification questionnaire and the clinical diagnosis of pattern identification by medical specialist was 0.1013. Therefore, the complementary management in CRF questionnaires with consultation from experts and the study for score difference of pattern identification will improve the accuracy and agreement rate, which will will be helpful for pattern identification of obesity by clinical experts.

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A Study on the Analysis of Traffic Distribution and Traffic Pattern on Traffic Route using ND-K-S (ND-K-S를 적용한 항로 통항분포와 통항패턴 분석에 관한 연구)

  • Kim, Jong-Kwan
    • Journal of Navigation and Port Research
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    • v.42 no.6
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    • pp.446-452
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    • 2018
  • A traffic route is an area associated with high risk for accidents due to the flow of heavy traffic. Despite this concern, most studies related to traffic focus solely on traffic distribution. Therefore, there is a need for studies investigating the characteristics of ships' routes and traffic patterns. In this study, an investigation was carried out to analyze the traffic distribution and pattern in 3 major traffic routes for 3 days. For the purpose of the study, based on the prevailing traffic conditions, the route was divided into 10 gate lines. The ships passing through the lines were also classified into either small, medium and large. ND-K-S (normal distribution, kurtosis, and skewness) test was carried out for the traffic distribution at each gate line based on the information analyzed on each traffic route. The analysis of the results obtained from the ND test showed that large vessels have normal distribution, medium sized vessels have satisfied normal distribution in one-way route only while small sized vessels do not have normal distribution. According to the result obtained from the K-S test, normal traffic pattern shows a significant difference between two-way route and one-way route. Results obtained from the K test result shows that in the case of one-way route, vessels have a traffic pattern using a wide range on traffic route. Further analysis shows that vessels concentrate on one side of route in case of two-way route. Results obtained from the S test show that, in case of one-way route, vessels have a normal traffic pattern according to center line. However, analysis pf the results shows that vessels are shifted to the right side of route in case of two-way route. Despite these findings, it should be noted that this study was carried out in only 3 ports, therefore there is need for investigation to be carried out in various routes and conditions in future studies.

A new lateral load pattern for pushover analysis in structures

  • Pour, H. Gholi;Ansari, M.;Bayat, M.
    • Earthquakes and Structures
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    • v.6 no.4
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    • pp.437-455
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    • 2014
  • Some conventional lateral load patterns for pushover analysis, and proposing a new accurate pattern was investigated in present research. The new proposed load pattern has load distribution according weight and stiffness variation in height and mode shape of structure. The assessment of pushover application with mentioned pattern in X type braced steel frames and steel moment resisting frames, with stiffness and mass variation in height, was studied completely and the obtained results were compared with nonlinear dynamic analysis method (including time history analysis). The methods were compared from standpoints of some basic parameters such as displacement, drift and shape of lateral load pattern. It is concluded that proposed load pattern results are closer to nonlinear dynamic analysis (NDA) compared to other pushover load patterns especially in tall and medium-rise buildings having different stiffness and mass during the height.

A Pattern Classification of HDD (Hard Disk Drive) Defect Distribution Using Fuzzy Inference (퍼지 추론을 이용한 HDD (Hard Disk Drive) 결함 분포의 패턴 분류)

  • Moon Un-Chul;Kwon Hyun-Tae
    • The Transactions of the Korean Institute of Electrical Engineers D
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    • v.54 no.6
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    • pp.383-389
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    • 2005
  • This paper proposes a pattern classification algorithm for the defect distribution of Hard Disk Drive (HDD). In the HDD production, the defect pattern of defective HDD set is important information to diagnosis of defective HDD set. In this paper, 5 characteristics are determined for the classification to six standard defect pattern classes. A fuzzy inference system is proposed, the inputs of which are 5 characteristic values and the outputs are the possibilities that the input pattern is classified to standard patterns. Therefore, classification result is the pattern with maximum possibility. The proposed algorithm is implemented with the PC system for defective HDD sets and shows its effectiveness.

Study on the Difference of Cold-heat Patterns According to Sasang Cinstitution (사상체질에 따른 한열변증의 차이에 관한 연구)

  • Park, SooJung;Lee, Youngseop;Joo, Jongcheon
    • Journal of Sasang Constitutional Medicine
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    • v.29 no.4
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    • pp.326-335
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    • 2017
  • Objectives The purpose of this study was to analyze the difference of cold-heat pattern according to sasang constitution. Methods 3891 subjects were joined in this study. The sasang cinstitution diagnosis were proceeded by sasang constitution experts. The questionnaires and anthropometric measurements of the subjects were collected. Results The effect of gender and body mass index on the cold-heat pattern according to sasang constitution were significant. The effect of age on the cold-heat pattern according to sasang constitution were not significant. The distribution of short form-12 and blood test on the cold-heat pattern according to sasang constitution were significant. Conclusions There were significant different distribution of cold-heat pattern asscording to sasang constitution by gender, body mass index, short form-12, blood test.

Infrared Thermographic Imaging in Patients with Alopecia (탈모 환자의 적외선 체열 진단상 안면부 체열 특성)

  • Yi Tae-Hoo;Moon Jung-Bae;An Kyung-Eh;Lee Hye-Jung
    • The Journal of Korean Medicine
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    • v.27 no.2 s.66
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    • pp.244-252
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    • 2006
  • Objectives : To examine any potential relationships between the types of alopecia and the facial heat distribution in patients with alopecia. Methods : 183 patients with alopecia participated in this study to provide facial heat distribution measured by the Infrared Thermography Scanner (ITS, Nec San-ei Instruments Ltd, Japan). The thermography scan was used in a light- and heat-protected room after 20 minutes' of rest. 1.5m of distance was maintained between the patients and the scanner. Results : Specificity in the type of facial heat distribution was found as follow. 1. Types of facial heat distribution can be classified as T-type and diffused patterns. 2. There was a significant difference in the pattern of facial heat distribution among different types of alopecia (p=0.002): facial heat distribution appeared T-type in androgenic alopecia, alopecia areata, and telogen effluvium (71.3%, 85.7%, 70.4%), whereas diffused pattern was dominant in seborrheic alopecia (55.6%). 3. There was a significant difference in the pattern of facial heat distribution between men and women (p<0.001) : While the T-type and diffused type appeared equally in men (50.6% : 49.4%), T-type was dominant in women (88.0% vs. 12.0%). Conclusions : We conclude that the pattern of facial heat distribution differs depending on the types of alopecia and gender. These differences may provide useful information for diagnosis and clinical therapy for this population.

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Infrared thermographic imaging in patients with alopecia. (탈모 환자의 적외선 체열 진단상 안면부 체열 특성)

  • Yi, Tae-Hoo;Moon, Jung-Bae;An, Kyung-Eh;Lee, Hye-Jung
    • Journal of Oriental Medical Thermology
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    • v.5 no.1
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    • pp.78-86
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    • 2006
  • Objectives: To examine any potential relationships between the types of alopecia and the facial heat distribution in patients with alopecia Methods: 183 patients with alopecia participated in this study to provide facial heat distribution measured by the Infrared Thermography Scanner (ITS, Nec San-ei Instruments Ltd, Japan). The thermography scan was used in a light-and heat-protected room after 20 minutes’of resting period. 1.5m of distance maintained between the patients and ITS. Results: Specificity in the type of facial heat distribution was found as follow. 1. Types of facial heat distribution can be classified as T-type and diffused patterns. 2. There was a significant difference in the pattern of facial heat distribution among different types of alopecia (p=0.002): facial heat distribution appeared T-type in Androgenic Alopecia, Alopecia Areata, and Telogen Effluvium (71.3%, 85.7%, 70.4%), whereas diffused pattern was dominant in Seborrheic Alopecia(55.6%). 3. There was a significant difference in the pattern of facialheat distribution between men and women (p<0.001): While the T-type and diffused type were equally appeared in men (50.6%: 49.4%), T-type was dominant in women (88.0% vs. 12.0%). Conclusions: We conclude that the pattern of facial heat distribution differs depends on the types of alopecia and gender. These differences may provide useful information for the diagnosis and clinical therapy for this population.

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Diffractive patterning on Cr thin film using femtosecond laser pulses (펨토초 레이저에 의한 크롬박막 미세 회절패턴 제작)

  • Kim, Jae-Gu;Cho, Sung-Hak;Chang, Won-Seok;Na, Suck-Joo;Whang, Kyung-Hyun
    • Laser Solutions
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    • v.10 no.4
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    • pp.18-22
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    • 2007
  • In this paper, we suggested the femtosecond laser processing using the mask which makes Gaussian spatial beam distribution to a normalized distribution by Fresenel diffraction. Holography pattern of the size of $320{\times}320{\mu}m^2$ on the Cr thin film on glass substrate with a pixel size of $5{\times}5{\mu}m^2$ was fabricated according to the pattern generated by the iterative Fourier transform algorithm(IFTA) algorithm. We analysed the damage threshold with an assumption the power distribution as Gaussian profile as 45 $mJ/cm^2$. The regenerated image of letters through the diffractive pattern was well recognized at the screen.

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Characterization of Microscale Objects based on the Diffraction Pattern Analysis (회절무늬를 이용한 미세물체의 특성 측정)

  • 강기호;전형욱;손정영;오명환
    • Korean Journal of Optics and Photonics
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    • v.2 no.1
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    • pp.1-6
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    • 1991
  • This paper describes the theoretical analysis of a diffraction pattern analyzer for the characterization of microscale object fields and a method for obtaining size and size distribution from the measured diffraction pattern of the object fields. For the experimental verification, a typical optical Fourier transform system was set up and calibrated with 2 5$\mu \textrm m$ and 50$\mu \textrm m$ pinholes. The system responses to distilled water droplets, alcohol, glycerin and silicon oil were imaged with vidicon, and the image was processed to determine the size distribution of each liquid particle field. The energy distribution function which is defined as the total intensity of a circular ring in the diffraction pattern was used to determine the dominant particle size of each liquid particle field.

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