• Title/Summary/Keyword: biometry

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A Proposal of Digital Photo-Biometry of MRD1 and New Levator Function Test (디지털 사진을 이용한 MRD1의 계측과 새로운 위눈꺼풀 올림근 근력 측정법의 제안)

  • Lee, Seungkook;Park, Sung Gyu;Baek, Rong-Min
    • Archives of Plastic Surgery
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    • v.33 no.4
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    • pp.521-524
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    • 2006
  • Purpose: The history of biometry dates back to ancient Greek. The ideal body ratio from biometry is used as a guideline in many works of art. Biometry is also used as a medical standard to determine normal or abnormal. Since the biometry of face is so complicated, many surgeons tend to regard preoperative evaluation as a bother and substitute medical records with some photographs. We introduce a new method to measure $MRD_1$ and levator function using digital photographs, which becomes widely used lately. Methods: $MRD_1$ can be measured with the primary-gaze-view photo which is magnified by PhotoshopR 7.0.1. The distance from coneal reflex of ring flash to upper eyelid margin is converted to mm-unit using the piece of ruler attached on the patient's face. Levator function can be measured with up-gaze-view photo and down-gaze-view photo which are superimposed on another. The excursion distance of upper eyelid margin (a) and the excursion distance of eyebrow (b) are measured respectively. The levator function can be assessed through subtraction of two values (a-b). This method is simple and precise and can be applied directly to patient without photos. Results: Using magnified digital photos and computer, this method can reduce personal error and instrumental error. Taking some digital photos doesn't take long time, so it can reduce the effort of preoperative evaluation and discomfort of patients. Conclusion: Digital photo-biometry is useful for retrospective study. Especially reducing personal error, it is useful when the number of specimens is huge. New levator function test is much more useful for Asian-specific eyes than Berke's method allowing frontalis muscle compensation.

Characterization of Biometry and Chemical and Morphological Properties of Fibers from Bagasse, Corn, Sunflower, Rice, and Rapeseed Residues in Iran

  • Kiaei, Majid;Samariha, Ahmad;Kasmani, Jafar Ebrahimpour
    • Journal of Forest and Environmental Science
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    • v.26 no.2
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    • pp.75-82
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    • 2010
  • The biometry, morphological properties and chemical composition of bagasse, corn, sunflower, rice, and rapeseed residues plants were analyzed. The results revealed differences in biometry properties and chemical composition of the different types of agricultural resides investigated. The greatest proportion of fiber length (1.32 mm) and cellulose (55.56%) was found in residues of bagasse plants, with a low ash (1.78%) and lignin (20.5%). The lignin of all types of agricultural resides was less than hardwood and softwood. In addition, the rice and rapeseed residues plants had highest amount of ash and extractive component. The slenderness and flexibility ratios of the all types of agricultural resides fibers were similar to some of hardwood and softwood species.

Acceptable Values of Kappa for Comparison of Two Groups

  • Seigel Daniel G.;Podgor Marvin J.;Remaley Nancy A.
    • 대한예방의학회:학술대회논문집
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    • 1994.02b
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    • pp.129-136
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    • 1994
  • A model was developed for a simple clinical trial in which graders had defined probabilities of misclassifying pathologic material to disease present or absent. The authors compared Kappa between graders, and efficiency and bias in the clinical trial in the presence of misclassification. Though related to bias and efficiency, Kappa did not predict these two statistics well. These results pertain generally to evaluation of systems for encoding medical information, and the relevance of Kappa in determining whether such systems are ready for use in comparative studies. The authors conclude that, by itself, Kappa is not informative Enough to evaluate the appropriateness of a grading scheme for comparative studies. Additional, and perhaps difficult, questions must be addressed for such evaluation.

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Recovery Corrupted Video Files using Time Information (시간 정보를 활용한 동영상 파일 복원 기법)

  • Na, Gihyun;Shim, Kyu-Sun;Byun, Jun-Seok;Kim, Eun-Soo;Lee, Joong
    • Journal of Korea Multimedia Society
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    • v.18 no.12
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    • pp.1492-1500
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    • 2015
  • In recent crime scene, there is the captured crime scene video at least one. So video files recorded on storage media often provide important evidence. Criminals often attempt to destroy storage saved crime scene video. For this reason recovery of a damaged or deleted video file is important to resolve criminal cases in aspects of digital forensic. In the recent, there is a study to recover video file based on video frames, but it is very poor time efficiency when the connecting video frames. This paper proposed advanced frame-based recovery technique of a damaged video files using time information. We suggest a new connecting algorithm to connect video frames using recorded time information in front of video frame. We also evaluate performance in aspects of time and experiment result shows that proposed method improves performance.

A Study on Optical Changes and Sequence Discrimination of Toner-printed Text and Writing Text (토너 출력문자와 필기구류 기재문자 간 광학적 변화와 선후관계에 관한 연구)

  • Lee, Ka Young;Yoon, Do-Young;Lee, Joong
    • Korean Chemical Engineering Research
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    • v.55 no.1
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    • pp.135-140
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    • 2017
  • This paper is on a study for discrimination on relative sequence as a most actively discussed topic in forensic document fields. This paper describes the application of the visual spectral comparator and infinite focus microscope as observation methods for overlapping region of printing and writing lines. As a result, we could categorize overlapping region images and identify the sequence of printing and writing lines by various inks.

Morphology and Biometry of Two Oxvtrichid Species of Genus Histriculus Corliss, 1960 (Ciliophora, Hypotrichida, Oxvtrichidae) from Seoul, Korea (한국산 조직하모층 속 하모류 2종(유모 문, 하모 목, 첨모하모 과)의 형태 및 통계)

  • Shin, Mann-Kyoon;Kim, Won
    • The Korean Journal of Zoology
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    • v.37 no.1
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    • pp.113-119
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    • 1994
  • The oxytrichid ticks collected from the cultivated field in Yonchon-gun, Misan-myon Kyonggi-do near Seoul, Korea and the moss-covered soils on the old castle walls in Namhansansons, Kwansiu-gun, Kyonggi-do near Seoul, Korea were Identified as Histriculus cavicola (Kahl, 19351 and H. muscorum Kahl, 1932. These two species were redescribed with illustrations. The description was based on the obsenration of living specimens, protarsol impregnated specimens and biometric analysis. These are reported for the first time from Korea and distinguished from the other congeneric species by the following characteristics: the former has 4 macronuclei, 4 micronuclei, 5 transverse cirri and rather inconspicuous marginal cirri, while the latter, 2 macronuclei, 2 micronuclei, 4 transverse cirri and conspicuous marginal cirri, respecitvely.

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Biometry of Genitalia, Incidence of Gynecological Disorders and Pregnancy Loss in Black Bengal Goat : An Abattoir Study

  • Talukder, Anup Kumar;Rahman, Md. Ataur;Islam, Md. Taimur;Rahman, Abu Nasar Md. Aminoor
    • Journal of Embryo Transfer
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    • v.30 no.1
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    • pp.51-57
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    • 2015
  • This study was aimed to determine the biometry of genital organs, incidence of gynecological disorders and pregnancy loss in Black Bengal goat (Capra hircus). Genitalia of 118 does were collected from local abattoirs. Biometric parameters of genital organs were measured and gross and histopathological examinations were carried out for detection of abnormalities. For gravid uterus, age of the fetus was determined by measuring crown-rump length. There was no significant difference in the length, width and weight of right and left ovaries (P>0.05). However, the number of follicles between left ($5.3{\pm}2.3$) and right ovaries ($7.4{\pm}2.7$) varied significantly (P<0.05). The mean length of right fallopian tube and uterine horn were not varied with those of left fallopian tube and uterine horn. The length of uterine body, cervix and vagina were $1.3{\pm}0.1cm$, $3.3{\pm}0.5cm$ and $6.8{\pm}1.3cm$, respectively. Overall, 29 (24.6%) genitalia had abnormalities. Fifteen genitalia (12.7%) had ovarian abnormalities including ovaro-bursal adhesions (6.8%), parovarian cyst (5.1%) and follicular cyst (0.9%). Uterine abnormalities were found in 12 genitalia (10.2%) and predominant uterine lesion was endometritis (6.8%) followed by adenomyosis (1.7%), hemorrhagic lesion on endometrial surface (0.9%) and cyst in broad ligament (0.9%). In addition, cyst in fallopian tube (0.9%) and vagina (0.9%) were recorded. The proportion of slaughtered pregnant goats was 15.3% (18/118). The pregnancy wastage was highest in the first month (50.0%) followed by second (33.3%) and third (16.7%) month. It can be concluded that ovaro-bursal adhesions, parovarian cyst and endometritis are the gynecological disorders of major concern in Black Bengal goat.

The Biometry-Mendelian Controversy in the History of Statistics (생물측정학-멘델주의 논쟁에 대한 통계학사적 고찰)

  • Jo, Jae-Keun
    • Communications for Statistical Applications and Methods
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    • v.15 no.3
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    • pp.303-324
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    • 2008
  • From mid-1890's, biometricians and Mendelians debated over Darwin's evolutionary theory. Biologist W. Weldon and Mathematician K. Pearson were leaders of the biometric school and biologist W. Bateson led Mendelian school. In this paper topics of the controversy such as causation vs. correlation, frequency distribution are considered. And in relation to the tradition of British statistics, we consider the philosophy of Karl Pearson revealed in this debate. Besides many statistical methods and concepts by Karl Pearson, the newly born mathematical statistics got a new journal Biometrika, a department in university, and a school of researchers from this controversy.

Preservation of some partial orderings of life distributions under length biased distributions (기간편의분포하(其間偏倚分布下)에서 수명분포(壽命分布)의 편순서(偏順序) 보존(保存))

  • Choi, Jeen-Kap;Kim, Sang-Lyong
    • Journal of the Korean Data and Information Science Society
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    • v.4
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    • pp.45-51
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    • 1993
  • For studies in reliability, biometry and survival analysis, the length biased distribution is frequently appropriate for certain natural sampling plans. So, we shall convey the preservation of some partial orderings under life length biasd distributions and closures of ILR and NBU classes under life length biasd distributions.

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BIOMETRY OF MYOPIC ANISOMETROPIA AND ISOMETROPIA

  • Kim, Jaedo;Hellen Swarbrick;Jack Alexander
    • Proceedings of the Optical Society of Korea Conference
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    • 2002.07a
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    • pp.74-75
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    • 2002
  • This study investigated the relationship between refractive error and ocular elements in myopic anisometropia and isometropia. 15 visually normal myopic anisometropes (>1.00 D interocular difference), 14 emmetropes (${\pm}$ 0.50 D), 15 low myopes (<3.00 D) and 15 high myopes (>3.00 D) participated in the study. Refractive error was measured by non-cycloplegic subjective refraction. (omitted)

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