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A Electromyographic Fatigue Analysis of the Gastrocnemius and Soleus (근전도를 이용한 하퇴삼두근의 근피로 분석)

  • Hong Wan-Sung;Kim Gi-Won;Kim Byung-Kon;Oh Joung-Lim
    • The Journal of Korean Physical Therapy
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    • v.14 no.4
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    • pp.487-497
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    • 2002
  • The fatigue process of the triceps surae was evaluated during a standing heel-rise test, comparising of pre-fatigue and post-fatigue. Sixteen healthy subjects with a mean age of 22.88 years participated. The heel-rise test was performed until exhaustion, and electromyographic activity expressed as mean value and root mean square of the gastrocnemius and soleus muscles were calculated. The average number of heel-rise performed was 63.69$\pm$26.10. The result of this present study indicate that the EMG signal is sensitive to the different muscle fatigue. Mean value and RMS decreased significantly in after fatigue. Significant difference were found between the pre-fatigue and post-fatigue in the total subjects. But there were no significant changes in mean and RMS between the male and female during standing heel-rise test. The present results, showing decreased EMG signal in the triceps surae, could be used as reference when testing the fatigue process in different clinical conditions. Recommendations for standardization of a heel-rise test are given.

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Crystal Structure and Optical Absorption of ZnO Thin Films Grown by Electrodeposition (전착법에 의한 ZnO 박막의 결정구조 및 광흡수 특성)

  • Choi, C.T.;Seo, J.N.
    • Journal of Sensor Science and Technology
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    • v.9 no.6
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    • pp.455-460
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    • 2000
  • Zinc oxide(ZnO) thin films were cathodically deposited on ITO glass from an aqueous zinc nitrate electrolyte. Three main fabrication parameters were taken into account : deposition potential, solution concentration and growth temperature. Different layers of ZnO thin films grown by varying the three parameters were studied by X-ray diffraction, scanning electron microscope and optical absorption spectroscopy. The prepared ZnO thin films were shown as a hexagonal wurtzite structure on the X-ray diffraction patterns and the good quality of ZnO thin films were obtained by potentiostatic cathodic deposition at -0.7V vs. Ag/AgCl reference electrode onto ITO glass from aqueous 0.1 mol/liter zinc nitrate electrolyte at $60^{\circ}C$.

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REGISTRATION OF IKONOS-2 GEO-LEVEL SATELLITE IMAGERY USING ALS DATA;BY USING LINEAR FEATURES AS REGISTRATION PRIMITIVES

  • Lee, Jae-Bin;Song, Woo-Seok;Lee, Chang-No;Yu, Ki-Yun;Kim, Yong-Il
    • Proceedings of the KSRS Conference
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    • 2007.10a
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    • pp.14-17
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    • 2007
  • To make use of surveying data obtained from different sensors and different techniques in a common reference frame, it is a pre-requite step to register them in a common coordinate system. For this purpose, we have developed a methodology to register IKONOS-2 Satellite Imagery using ALS data. To achieve this, conjugate features from these data should be extracted in advance. In the study, linear features are chosen as conjugate features because they can be accurately extracted from man-made structures in urban area, and more easily than point features from ALS data. Then, observation equations are established from similarity measurements of the extracted features. During the process, considering the characteristics of systematic errors in IKONOS-2 satellite imagery, the transformation function were selected and used. In addition, we also analyzed how the number of linear features and their spatial distribution used as control features affect the accuracy of registration. Finally, the results were evaluated statistically and the results clearly demonstrated that the proposed algorithms are appropriate to register these data.

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Diagnosis and treatment of a calf with patent urachus

  • Ha, Seungmin;Kim, Sooyoung;Kim, Seongmin;Park, Sookyoung;Lee, Soochan;Jung, Kihwa;Kim, Euntae;Gang, Seokjin;Han, Taeseok
    • Korean Journal of Veterinary Service
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    • v.41 no.1
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    • pp.47-49
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    • 2018
  • A 2-month-old female Holstein Friesian calf was noted to leak urine from the umbilicus during urination. She urinated through both the umbilicus and the urethra. A conduit from the umbilicus to the bladder was identified with ultrasonography. Uroperitoneum was ruled out because blood urea nitrogen and creatinine were within reference ranges. Surgery was performed to resect the patent urachus. Urachitis was identified during surgery. Dexamethasone and an antibiotic were used for the inflammation and postoperative cares. Meloxicam was substituted for dexamethasone since the calf showed side effects to dexamethasone. The calf recovered completely and there was no urine leakage from the umbilicus.

Biochemical properties and antimicrobial drug susceptibility of Erysipelothrix rhusiopathiae isolated from the cases of acute septicemic swine erysipelas (급성 폐혈증형 돼지단독예에서 분리한 Erysipelothrix rhusiopathiae의 생화학적 특성 및 약제감수성)

  • Baek, Young-sook;Cho, Gil-jae;Kim, Bong-hwan
    • Korean Journal of Veterinary Research
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    • v.30 no.4
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    • pp.413-420
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    • 1990
  • The present study was conducted to investigate biochemical properties and antimicrobial drug susceptibilities of 47 strains of E rhusiopathiae isolated from the cases of acute septicemic swine erysipelas in Youngnam and Kyunggi provinces during the period from June 1988 to December 1989. The isolants were identified as E rhusiopathiae on the basis of cellular and colonial morphology, and characteristic reactions in some biochemical tests. All the organisms produced hydrogen sulfide in triple sugar iron agar and showed the characteristic "pipe cleaner" type of growth in gelatin stab cultures. The majority of biochemical and cultural properties of E rhusiopathiae isolated from pigs affected with acute erysipelas were identical to those of the reference strains employed. All the isolates were highly susceptible to penicillin G, ampicillin, erythromycin (MIC:0.025~0.39IU or ${\mu}g/ml$), and moderately susceptible to oleandomycin, oxytetracycline, chloramphenicol(MIC:$0.78{\sim}25{\mu}g/ml$). Kanamycin and sulfadimethoxine showed no activity against the isolates(MIC:>$400{\mu}g/ml$). The MICs of dihydrostreptomycin presented two distribution peaks; of 47 strains, 5(10.6%) were resistant to dihydrostreptomycin (MIC:$400{\mu}g/ml$), while the majority of them were susceptible to the drug.

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Evaluation of Various Tone Mapping Operators for Backward Compatible JPEG Image Coding

  • Choi, Seungcheol;Kwon, Oh-Jin;Jang, Dukhyun;Choi, Seokrim
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.9 no.9
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    • pp.3672-3684
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    • 2015
  • Recently, the standardization of backward compatible JPEG image coding for high dynamic range (HDR) image has been undertaken to establish an international standard called "JPEG XT." The JPEG XT consists of two layers: the base layer and the residual layer. The base layer contains tone mapped low dynamic range (LDR) image data and the residual layer contains the error signal used to reconstruct the HDR image. This paper gives the result of a study to evaluate the overall performance of tone mapping operators (TMOs) for this standard. The evaluation is performed using five HDR image datasets and six TMOs for profiles A, B, and C of the proposed JPEG XT standard. The Tone Mapped image Quality Index (TMQI) and no reference image quality assessment (NR IQA) are used for measuring the LDR image quality. The peak signal to noise ratio (PSNR) is used to evaluate the overall compression performance of JPEG XT profiles A, B, and C. In TMQI and NR IQA measurements, TMOs using display adaptive tone mapping and adaptive logarithmic mapping each gave good results. A TMO using adaptive logarithmic mapping gave good PSNRs.

IT Architecture: Is It a Brand-new Paradigm? (IT 아키텍처, 과연 새로운 접근방법인가?: 미국과 국내 사례의 비교분석을 중심으로)

  • Jang, Si-Young;Lee, Chung-Seop;Choi, Young-Jin
    • Information Systems Review
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    • v.4 no.2
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    • pp.59-80
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    • 2002
  • Today the theme of "IT Architecture" has become a topic of special interest in both public and private sectors. Based on the literature survey on information systems planning and information architecture, IT architecture may be viewed as the outcome of evolution, rather than revolution. A case study was conducted in order to compare the tasks and deliverables of U.S. IT architecture and Korean Information Strategy Planning. No significant differences were found in tasks or deliverables. Implications of the study were discussed.

A study of the round Variation Design Brassiere Pattern

  • Park, You-Shin;Choi, Yeong-Soon
    • Journal of Fashion Business
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    • v.12 no.6
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    • pp.81-92
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    • 2008
  • The purpose of this study is to develop the applied brassiere pattern of women which are fitting for 75A. The constructing of this experimental brassiere were lower cup, upper cup, front panel and U-wing as well as a full cup embcing the entire breasts. Basing on the bra model from domestic experiment results, development of an applied design, round side type pattern, has been suggested. Thus, suggesting the round variation design bra, which is an applied design based on the basic model based on the breast volume. Based on the sizes that are in reference to Size Korea (2004) and related previous researches, the basic model that has been experimented with 11.4% polyurethane and 88.6% Nylon as the materials, has been selected as the model of research. This takes 75A, the size of which is set according to the underbust circumference and the breasts circumference, as the basic model. It is an application in terms of design, and there is no change to the cup volume or size because it has been moved only from the cutting line. The applied design changes the right side of the lower cup into an easily-movable form and attaches it to the upper cup, and the lower cup takes the right part of the upper cup to form a cup shape of round variation design. It also changes basic straight form of the wings, and alters them into U-shape.

Quantitative Analysis of Paeoniflorin from Paeonia lactiflora Using $^1H-NMR$

  • Yoo, Jong-Su;Song, Myoung-Chong;Ahn, Eun-Mi;Lee, Youn-Hyung;Rho, Yeong-Deok;Baek, Nam-In
    • Natural Product Sciences
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    • v.12 no.4
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    • pp.237-240
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    • 2006
  • Paeoniflorin, the major component of the root of Paeonia lactiflora, was quantitatively analyzed using $^1H-NMR$ spectrometry. The quantity of paeoniflorin was calculated by the ratio of the intensity of the signals (H-9, H-10, H-2', 6') to the aldehyde peak of the known amount of internal standard, 2,4,6-trihydroxybenzaldehyde. These results were compared with the conventional HPLC method. The contents of paeoniflorin in P. lactiflora, which were respectively calculated by H-9, H-10, H-2', 6' in the $^1H-NMR$ spectra and HPLC, were determined $2.60{\pm}0.07,\;2.44{\pm}0.09,\;2.77{\pm}0.12\;and\;2.46{\pm}0.16%$. The advantages of quantitative $^1H-NMR$ analysis are that can be analyzed to identify and quantify, and no reference compounds required for calibration curves. Besides, it allows rapid and simple quantification for paeoniflorin with an analysis time for only 20 min without any preprocessing.

Studies on the Efficacy of Combined Preparation of Crude Drugs (XV). -Effects of 'Samulanshin-Tang' on the Central Nervous System and Isolated Ileum- (생약복합제제(生藥複合製劑)의 약효연구(藥效硏究) (제15보)(第15報) -사물안신탕(四物安神湯)이 중추신경계(中樞神經系) 및 적출장관(摘出腸管)에 미치는 영향(影響)-)

  • Hong, N.D.;Lee, K.S.;Wang, W.W.;Kim, N.J.
    • Korean Journal of Pharmacognosy
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    • v.14 no.4
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    • pp.161-169
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    • 1983
  • Although the 'Samulanshin-Tang' has been widely used in clinical purposes in the -oriental medicine, its clinical efficacy is only documented for the case of palpitation in the Oriental medical reference. The present experiments were undertaken to investigate the clinical efficacy of 'Samulanshin-Tang' comparing effects with animal experiments and to validate its oriental medicine description. Following results were obtained; 1)Suppressive action was shown on convulsion due to cerebrocortical and diencephalic causes in Fraction I and II, but no such action was noted myelic causes in mice. 2)Sedative, analgesic and antipyretic actions were noted by Fraction III. 3)Relaxing action was shown on the isolated ileum in mice and antagonistic action was seen on acetylcholine and $BaCl_2$-induced contractions of the ilem that the direct action of the intestinal smooth muscle was recognized in mice and rats.

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