• Title/Summary/Keyword: LUE

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A Study in the Daqi- Theories by Yu Chang and Zhang Xi Chun (천담유창여장석순적 「대기」론)

  • Kum Ji Soo;Keum Kyung Soo;Jeong Sook Ei
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.18 no.5
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    • pp.1232-1236
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    • 2004
  • In the Far-Eastern traditional medicine, Oi[Energy] implies a wide range of meaning and is emphasized. There is nothing that is not related to this Qi, as seen in physiology, pathology, the relationship between human body and nature, the movements of intestines and gyeongnak[energy networks], the process of outbreak and change of illness, remedial laws, the features and effects of drugs, and so on. Accordingly, Nei Jing also says, 'every sickness arises from OL' The Qi has multi-meanings, and each of lots Of past physicians researched and analyzed it in different perspective, thus making the Qi-theories much richer. Still. there were not so many physicians who discussed the theme of Daqi. The denomination of Daqi is seen in Nei Jing and Jin Gui Yao Lue, and the physicians like Yu Chang in Ming dynasty and Zhang Xi Chun in Cheng dynasty, etc. applied and utilized Daqi by exploring its functional actions for human life and associating it with clinical practices. Yu Chang said that Daqi is Xiong Zong Yangqi[Positive Energy in Breast] governing every Qi, and that if this Qi is full, it spreads through body and protects the body from sickness, and vice versa. Summarizing his researches on the Daqi in Jin Gui Yao Lue and on the opinions of Yu Chang as well as his experiences, Chang Xi Chun maintained that the Qi accumulated in breast must be named Daqi, which constitutes the contents of Zongqi[Chief Energy] mentioned in Nei Jing. Once the Qi is vacant, breathing is not smooth, whole body is enervated, spirit becomes dim, thinking ability falls drastically. Furthermore, if the Qi is extremely vacant or more worsens, breathing stops. And he prescribed the medicines including Sheng Xian Tang as remedies against the symptom of Daqi XiaXian[Fall in Great Energy]. The recognitions of Daqi by Yu Chang and Zhang Xi Chun are consistent with each other. At any rate, their theories and prescriptions may be high in practical value in contemporary clinics.

Photochemical Reflectance Index (PRI) Mapping using Drone-based Hyperspectral Image for Evaluation of Crop Stress and its Application to Multispectral Imagery (작물 스트레스 평가를 위한 드론 초분광 영상 기반 광화학반사지수 산출 및 다중분광 영상에의 적용)

  • Na, Sang-il;Park, Chan-won;So, Kyu-ho;Ahn, Ho-yong;Lee, Kyung-do
    • Korean Journal of Remote Sensing
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    • v.35 no.5_1
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    • pp.637-647
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    • 2019
  • The detection of crop stress is an important issue for the accurate assessment of yield decline. The photochemical reflectance index (PRI) was developed as a remotely sensed indicator of light use efficiency (LUE). The PRI has been tested in crop stress detection and a number of studies demonstrated the feasibility of using it. However, only few studies have focused on the use of PRI from remote sensing imagery. The monitoring of PRI using drone and satellite is made difficult by the low spectral resolution image captures. In order to estimate PRI from multispectral sensor, we propose a band fusion method using adjacent bands. The method is applied to the drone-based hyperspectral and multispectral imagery and estimated PRI explain 79% of the original PRI. And time series analyses showed that two PRI data (drone-based and SRS sensor) had very similar temporal variations. From these results, PRI from multispectral imagery using band fusion can be used as a new method for evaluation of crop stress.

Assessment of Photochemical Reflectance Index Measured at Different Spatial Scales Utilizing Leaf Reflectometer, Field Hyper-Spectrometer, and Multi-spectral Camera with UAV (드론 장착 다중분광 카메라, 소형 필드 초분광계, 휴대용 잎 반사계로부터 관측된 서로 다른 공간규모의 광화학반사지수 평가)

  • Ryu, Jae-Hyun;Oh, Dohyeok;Jang, Seon Woong;Jeong, Hoejeong;Moon, Kyung Hwan;Cho, Jaeil
    • Korean Journal of Remote Sensing
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    • v.34 no.6_1
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    • pp.1055-1066
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    • 2018
  • Vegetation indices on the basis of optical characteristics of vegetation can represent various conditions such as canopy biomass and physiological activity. Those have been mostly developed with the large-scaled applications of multi-band optical sensors on-board satellites. However, the sensitivity of vegetation indices for detecting vegetation features will be different depending on the spatial scales. Therefore, in this study, the investigation of photochemical reflectance index (PRI), known as one of useful vegetation indices for detecting photosynthetic ability and vegetation stress, under the three spatial scales was conducted using multi-spectral camera installed in unmanned aerial vehicle (UAV),field spectrometer, and leaf reflectometer. In the leaf scale, diurnal PRI had minimum values at different local-time according to the compass direction of leaf face. It meant that each leaf in some moment had the different degree of light use efficiency (LUE). In early growth stage of crop, $PRI_{leaf}$ was higher than $PRI_{stands}$ and $PRI_{canopy}$ because the leaf scale is completely not governed by the vegetation cover fraction.In the stands and canopy scales, PRI showed a large spatial variability unlike normalized difference vegetation index (NDVI). However, the bias for the relationship between $PRI_{stands}$ and $PRI_{canopy}$ is lower than that in $NDVI_{stands}$ and $NDVI_{canopy}$. Our results will help to understand and utilize PRIs observed at different spatial scales.

A Clinical Study on Cases of Ling-Gui-Gan-Zao-Tang using Medical Approach of Sanghan-Geumgwe in Musculoskeletal Disorders (상한금궤처방의 근골동통질환 접근법에 따른 령계감조탕 증례(證例)의 고찰(考察))

  • Rho, Euy Joon;Ko, Young Hyup
    • 대한상한금궤의학회지
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    • v.4 no.1
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    • pp.13-28
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    • 2012
  • Objective : The purpose of this study is to suggest medical approach to musculoskeletal system disorders using the decoction of Sanghan-Geumgwe. We studied cases of Ling-Gui-Gan-Zao-Tang prescribed patients to evaluate the clinical efficacy in musculoskeletal system disorders Method : We devised medical approach of Sanghan-Geumgwe in musculoskeletal disorders as follows. First, we chose ryeon-je(攣劑) and soo-je(水劑) herb medicine, commonly used in musculoskeletal disorders. In the selected herb group, we designated ryeon-je(攣劑) to be first key herbs, Soo-Je(水劑) as the second key herb, and other herb groups as third key herb. In this sequential selection and exclusion process, herbs were chosen based upon yak-neung-hyo-seon (藥能效選). Combination of those selected herbs drew pre-prescription group, finally prescription were made by the prescription criteria. Results : Based on the medical approach of decoctions of Sanghan-Geumgwe, we chose Ling-Gui-Gan-Zao-Tang to treat many kinds of musculoskeletal system disorders. And we achieved higher results on treatment for musculoskeletal system disorders. Conclusions : The medical approch using the decoctions of Sanghan-Geumgwe is very useful in choosing accurate prescriptions for patients with musculoskeletal system disorders in clinic.

A Novel Character Segmentation Method for Text Images Captured by Cameras

  • Lue, Hsin-Te;Wen, Ming-Gang;Cheng, Hsu-Yung;Fan, Kuo-Chin;Lin, Chih-Wei;Yu, Chih-Chang
    • ETRI Journal
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    • v.32 no.5
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    • pp.729-739
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    • 2010
  • Due to the rapid development of mobile devices equipped with cameras, instant translation of any text seen in any context is possible. Mobile devices can serve as a translation tool by recognizing the texts presented in the captured scenes. Images captured by cameras will embed more external or unwanted effects which need not to be considered in traditional optical character recognition (OCR). In this paper, we segment a text image captured by mobile devices into individual single characters to facilitate OCR kernel processing. Before proceeding with character segmentation, text detection and text line construction need to be performed in advance. A novel character segmentation method which integrates touched character filters is employed on text images captured by cameras. In addition, periphery features are extracted from the segmented images of touched characters and fed as inputs to support vector machines to calculate the confident values. In our experiment, the accuracy rate of the proposed character segmentation system is 94.90%, which demonstrates the effectiveness of the proposed method.

Evaluations of 8lue Jean Related to Brand Name and Apparel Advertising Acceptance (상표 및 의류광고 수용도에 따른 청바지 평가에 관한 연구)

  • 이진희;이명희
    • Journal of the Korean Society of Clothing and Textiles
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    • v.19 no.1
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    • pp.13-22
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    • 1995
  • The objectives of this study were (1) to investigate the differences of evaluations of blue jean according to the level of apparel advertising acceptance, (2) to examine the differences of effect of brand Name on evaluations of blue jean, (3) and to investigate the differences of evaluations between Clothing and Textiles mojors and non Clothing and Textiles mojors. Questionnaire was comprised of 10 Likert type items of apparel advertising acceptance measure, and 11 items of 7-point scale for clothing evaluation measure. "Mcgreger" was selected for the blue jean evaluations of unrecognized brand, and "Calvin Klein" was for recognized brand. The subjects were 154 college female students in Seoul; 39 females were asked about evaluations of the blue jean of unrecognized brand name (Mcgreyer) without the brand name label, 40 unrecognized brand with the label, 41 recognized brand (Calvin Klein) without the brand name label, 34 recognized brand with the label. The data were analyzed using t-test, one-way ANOVA, and Duncan's multiple-range test. The results of the study were the followings: 1. Females with high scores in apparel advertising acceptance were more influenced by brand name in evaluations of blue jean than those with low scores. 2. The evaluations of blue jean was influenced by reputation of brand name in all evaluation criteria. Female group who evaluated the blue jean with recognized brand name label evaluated more positively than the other groups.an the other groups.

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Preparation of dense $BaMgAl_{10}O_{17}:Eu^{2+}$ particles and their surface treatment

  • Lee, Dae-Won;Boo, Jin-Hyo;Jung, Ha-Kyun
    • 한국정보디스플레이학회:학술대회논문집
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    • 2005.07b
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    • pp.1499-1502
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    • 2005
  • Dense $BaMgAl_{10}O_{17}:Eu^{2+}$ phosphor particles with a spherical shape have been synthesized through spray pyrolysis method using basic aluminum nitrate precursor as a spray solution. This $BaMgAl_{10}O_{17}:Eu^{2+}$ particles prepared by the spray pyrolysis have shown the stronger emission intensity compared to the commercially-available $BaMgAl_{10}O_{17}:Eu^{2+}$. However, thermal stability of the BAM:Eu b lue phosphor is very poor due to changing from $Eu^{2+}$ to $Eu^{3+}$ at the thermal process, so brightness of the phosphor decreases. To improve the thermal stability of the dense BAM:Eu phosphor, the spherical BAM:Eu particles were coated with pure $BaMgAl_{10}O_{17}$ layer using the hydrolysis reaction in a solution system. The synthesized powders were characterized by XRD, SEM and PL. On the other hand, the emission properties of the BAM:Eu phosphors coated with $BaMgAl_{10}O_{17}$ layer before and after thermal treatment at $500^{\circ}C$ for 30 min were estimated under VUV excitation. The brightness of the coated phosphor was higher than that of the uncoated phosphor. Also, the coating thickness of BAM layer in the BAM:Eu particles was optimized.

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Cell Selectivity of an Antimicrobial Peptide Melittin Diastereomer with D-amino Acid in the Leucine Zipper Sequence

  • Zhu, Wan Long;Nan, Yong Hai;Hahm, Kyung-Soo;Shin, Song-Yub
    • BMB Reports
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    • v.40 no.6
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    • pp.1090-1094
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    • 2007
  • Melittin (ME), a linear 26-residue non-cell-selective antimicrobial peptide, displays strong lytic activity against bacterial and human red blood cells. To design ME analogue with improved cell selectivity, we synthesized a melittin diastereomer (ME-D) with D-amino acid in the leucine zipper sequence (Leu-6, Lue-13 and Ile-20). Compared to ME, ME-D exhibited the same or 2-fold higher antibacterial activity but 8-fold less hemolytic activity. Circular dichroism analysis revealed that ME-D has much less $\alpha$-helical content in $\alpha$-helical content in the presence of zwitterionic EYPC/cholesterol (10 : 1, w/w) liposomes compared to negatively charged EYPE/EYPG (7 : 3, w/w) liposomes. The blue shift of the fluorescence emission maximum of ME-D in zwitterionic EYPC/cholesterol (10 : 1, w/w) liposomes was much smaller than in negatively charged EYPE/EYPG (7 : 3, w/w) liposomes. These results suggested that the improvement in therapeutic index/cell selectivity of ME-D is correlated with its less permeability to zwitterionic membranes.

A Study on Five Circuits and Six Qi Learning of Ming Dynasty (명대(明代)의 운기학(運氣學)에 관한 연구(硏究))

  • Yun, Chang-yeol
    • Journal of Korean Medical classics
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    • v.31 no.2
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    • pp.49-69
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    • 2018
  • Objectives: Following the Jin Yuan Dynasty, the Ming and Song Dynasties witnessed a great development of Yunqi xue. A study into this development has a vast significance in studying the history of the development of traditional Chinese medicine. Methods: The contents relating to Yunqi within the Comprehensive Medical Books, published during the Ming period, and medical texts separately published specifically dealing with Yunqi were used in order to review the unique characters of the study of Yunqi during this period. Results: There were many cases in the comprehensive medical books during the Ming period that dealt with Yunqi. Some of the examples are: Yunqilu in Yixueliuyao, YunQiZongLun in Yixuerumen, and Yunqilu in Yixueliuyao. A number of books that followed suit from the previous generation's study were published, the examples of which are Wangji's Yunqiyilan, and ZhangJiebin's LeiJingtuyi. WangJi, in his book, opposed the mechanic utilization of YunQi theory, and advocated the flexible application of the theory at the doctor's discretion. Liwei, in his YunQiZongLun, wrote a great deal of knowledge which he gained based on the previous-generation medical masters' achievements. Conclusions: Yunqi became widely accepted during the Ming period which led to some doctors advocating the flexible application of the YunQi theory, and some doctors even completely denouncing Yunqi.

Characterization of Ga, Al or In Doped ZnO Films Deposited by DC Magnetron Sputtering (DC 마그네트론 스터링법을 이용하여 증착한 Ga, Al, In 첨가 ZnO 박막의 특성)

  • Park, Sang-Eun;Park, Se-Hun;Jie, Lue;Song, Pung-Keun
    • Journal of the Korean institute of surface engineering
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    • v.41 no.4
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    • pp.142-146
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    • 2008
  • Trivalent ions(Ga, Al, In) doped ZnO films were deposited by DC magnetron sputtering on non-alkali glass substrate at substrate temperature of $300^{\circ}C$. We used the different three types of high density($95%{\sim}$) ceramic sintered disks(doped with $Ga_2O_3$; 6.65 wt%, $Al_2O_3$; 3.0 wt%, $In_2O_3$; 9.54 wt%). This study examined the effect of different dopants(Ga, Al, In) on the electrical, structural, and optical properties of the films. The lowest resistivity of $5.14{\times}10^{-4}{\Omega}cm$ and the highest optical band gap of 3.74 eV were obtained by Ga doped ZnO(GZO) film. All the films had a preferred orientation along the(002) direction, indicating that the growth orientation has a c-axis perpendicular to the substrate surface. The average transmittance of the films was more than 85% in the visible range.