• Title/Summary/Keyword: Abnormal AT

Search Result 2,560, Processing Time 0.031 seconds

전개 .정렬 . 절단 성능에 영향을 미치는 홍고추 형상 요인 분석 (Shape Factor Analysis of Fresh Red Pepper Affecting the Performance of Unfolding, Arranging and Cutting)

  • 나우정;이승규;송대빈;김영복;이태곤
    • Journal of Biosystems Engineering
    • /
    • 제26권6호
    • /
    • pp.563-570
    • /
    • 2001
  • To develop a stalk detaching system the effect of shape factor of red pepper affecting the performance of unfolding, arranging and cutting was analysed. The obtained results are as follows : By cutting experiment, it was found that the bending of stalk affected the cutting rate of stalk, and that the bending of body increased the amount of peppers that were expelled from the cutting guide by conveying brush. The ratios, 'bending length of a body/body length'and 'bending length of a stalk/stalk length', could be used as criteria far abnormality of body and stalk of peppers, respectively. As a result of experiment, it was concluded that mechanical treatment would be difficult for the peppers with indexes greater than 0.4 and 0.3 fur body bending and stack bending. respectively. So, these indexes were used as criteria for distinguishing abnormality from normality of peppers. In the unfolding unit, conveyance of peppers was impossible for both of normal and abnormal ones at the inclination angle of 10°, especially, at the frequency of 8.3 Hz peppers maintained stationary state. At the inclination angle of 20°, both of normal and abnormal peppers showed similar tendencies, but abnormal ones showed an accumulation trend gradually with increased feeding speed. In the arranging unit, conveyance of peppers was almost impossible for both of normal and abnormal ones at the inclination angle of 20°, showing almost no difference between the conveyances of normal and abnormal ones. In the case of the inclination angle of 30°, at the condition of the feeding speeds and frequency corresponding 0.06 m/s, 0.08 m/s and 8.3 Hz, respectively, the passing time of the abnormal peppers on the arranging plate increased rapidly.

  • PDF

ZnO 세라믹스 거대입성장 (Abnormal grain growth of ZnO ceramics)

  • 김영정
    • 한국결정성장학회지
    • /
    • 제29권6호
    • /
    • pp.251-256
    • /
    • 2019
  • ZnO를 통상적인 소결온도 이상의 온도 1385℃에서 소결하는 과정에서 mm 크기로 거대 성장된 입자를 갖는 세라믹스를 제조하였다. 1400℃에서 8시간 소결하는 경우 성장에 참여하지 않은 입자의 크기는 30~40 ㎛이고 거대 성장된 입자는 1,000 ㎛에 달하여 부피비 최소 10,000배 이상의 급속한 성장이 이루어졌다. 이러한 급속한 성장의 원인으로 일차 입자 크기분포, 성형압 불균일 또는 불순물의 합입등을 고려하였으며, 이들 중 일차입자 크기 분포일 것으로 추정되나 확실한 증거를 확보하지 못하였다. 미세구조 관찰을 통해 거대입자 성장은 주변의 입자를 통째로 합치는 과정을 통해 성장하는 것으로 추정된다.

Chromosome Aberrations in Porcine Embryo Produced by Nuclear Transfer with Somatic Cell

  • Ah, Ko-Seung;Jin, Song-Sang;Tae, Do-Jeong;Chung, Kil-Saeng;Lee, Hoon-Taek
    • 한국수정란이식학회:학술대회논문집
    • /
    • 한국수정란이식학회 2002년도 국제심포지엄
    • /
    • pp.73-73
    • /
    • 2002
  • Nuclear transfer (NT) techniques have advanced in the last years, and cloned animals have been produced by using somatic cells in several species including pig. However, it is difficult that the nuclear transfer porcine embryos development to blastocyst stage overcoming the cell block in vitro. Abnormal segregation of chromosomes in nuclear transferred embryos on genome activation stage bring about embryo degeneration, abnormal blastocyst, delayed and low embryo development. Thus, we are evaluated that the correlations of the frequency of embryo developmental rates and chromosome aberration in NT and In viかo fertilization (IVF) derived embryo. We are used for ear-skin-fibroblast cell in NT. If only karyotyping of embryonic cells are chromosomally abnormal, they may difficultly remain undetected. Then, we evaluate the chromosome aberrations, fluorescent in situ hybridization (FISH) with porcine chromosome 1 submetacentric specific DNA probe were excuted. In normal diploid cell nucleus, two hybridization signal was detected. In contrast, abnormal cell figured one or three over signals. The developmental rates of NT and IVF embryos were 55% vs 63%, 32% vs 33% and 13% vs 17% in 2 cell, 8 cell and blastocyst, respectively. When looking at the types of chromosome aberration, the detection of aneuploidy at Day 3 on the embryo culture. The percentage of chromosome aneuploidy of NT and IVF at 4-cell stage 40.0%, 31.3%, respectively. This result indicate that chromosomal abnormalities are associated with low developmental rate in porcine NT embryo. It is also suggest that abnormal porcine embryos produced by NT associated with lower implantation rate, increase abortion rate and production of abnormal fetuses.

  • PDF

황해연안의 2013년 11월 이상조위편차 발생 원인 (The Cause of Abnormal Tidal Residuals Along the Coast of the Yellow Sea in November 2013)

  • 김호균;김영택;이동환
    • 해양환경안전학회지
    • /
    • 제22권4호
    • /
    • pp.344-353
    • /
    • 2016
  • 황해연안 조위관측소 10 개 지점에서 2013년 11월 24일 밤부터 25일 오전까지 관측한 해수면, 해면기압, 바람, 유동 자료뿐만 아니라 일기도를 분석하여 이상조위편차의 발생 원인과 관측자료들 간의 상호상관성을 알아보았다. 이상조위편차란 최대조위편차와 최소조위편차가 나타나는 시간동안 두 편차간의 차를 의미한다. 영종도의 최대조위편차는 111 cm, 최소조위편차는 -65 cm로, 4시간 1분 동안 176 cm의 이상조위편차를 보여 10개 조위관측소 가운데 가장 크다. 반면 모슬포의 이상조위편차는 8시간 52분 동안 약 68 cm로 가장 작다. 이 같은 이상조위편차는 기압점프에 의한 기상해일이 아니라 저기압에 의한 기압배치의 영향으로 바람에 의해 발생한 것으로 확인되었다. 각 지점에서 이상조위편차에 의한 흐름은 연평균 낙조류 세기의 16 ~ 41 %로 무시할 수 없을 정도이다. 조위편차, 바람, 조류잔차의 상호상관관계로부터 저기압의 중심이 한반도 서쪽에 가까이 위치해 있을 때 인천에서 남풍계열의 바람에 의한 북향류가 해수면을 상승시켰고, 한반도 통과 후 북풍계열의 바람에 의해 남향류가 해수면을 하강시켰다.

붕루(崩漏) 환자(患者) 1례(例)에 대한 임상보고 (A case report of Abnormal Uterine Bleeding)

  • 임은미;육상숙
    • 대한한방부인과학회지
    • /
    • 제19권4호
    • /
    • pp.245-255
    • /
    • 2006
  • Purpose : The purpose of this study is to report the effect of oriental treatments for the abnormal uterine bleeding. Methods : We treated a 30-year-old female who had been suffering from abnormal uterine bleeding for one month by Herb medication(Yikweseungyangtang, Chokyungjongoktang, Jahagehwan), acupuncture therapy and moxibustion therapy at the same time. And these teatments were based on 塞流([sailiu]-stanch blood), 澄源([chengyuan]-correct origin), 復舊([fuliu-restore) which are principles of treatment of 崩漏([benglou]-metrorrhagia). Results : After oriental medical teatment, abnormal uterine bleeding was disappeared and recovered the normal menstrual cycle. Conclusion : This case study shows that the oriental medical treatment in accordance with three principles of oriental treatment has an useful effect on abnormal uterine bleeding patient's treatment and recovery.

  • PDF

YIG 소결시 나타나는 비정상입성 장 현상과 그의 억제 (Suppression of the abnormal grain growth in the sintering of YIG)

  • 김동영;한진우;전동석;이상석
    • 한국전기전자재료학회:학술대회논문집
    • /
    • 한국전기전자재료학회 2002년도 하계학술대회 논문집
    • /
    • pp.466-469
    • /
    • 2002
  • In the sintering of YIG, abnormal grain growth phenomena was observed. This abnormal grain growth is related to the sintering temperature in this experiment. In the sintering below 145$0^{\circ}C$., the sintered body showed narrow size distribution. However, in the sintering at 145$0^{\circ}C$, a few grains grew rapidly with respect to other grains, and bimodal size distribution was appeared. Liquid phase was not observed far from the abnormally grown large grains, but only near the large grains. This means that the abnormal grain growth was caused by the nonuniform distribution of liquid phase which promote the grains growth. This nonuniform distribution of liquid phase was thought to be due to the nonuniform mixing of the starting materials. This abnormal grain growth was suppressed by enhance the compositional uniformity by multiple calcination.

  • PDF

비정상 자궁 출혈의 한약 치료에 대한 연구 - 제반 한의학 문헌의 붕루문을 중심으로 - (A Study on Korean Medical Treatment of Abnormal Uterine Bleeding - Based on Benglou Chapters of Classical Medical Texts -)

  • 김연태
    • 대한한의학원전학회지
    • /
    • 제36권4호
    • /
    • pp.41-54
    • /
    • 2023
  • Objectives : To examine Korean Medical treatment of abnormal uterine bleeding in classical texts, along with their clinical applicability. Methods : The Benglou chapters in the Donguibogam, Fuqingzhunuke, Xuezhenglun were examined in terms of diagnostic pattern and treatment. Benglou chapters of other medical texts were referenced as well. Basic Korean Medical knowledge of abnormal uterine bleeding and its clinical application were studied. Results : As abnormal uterine bleeding is generally caused by internal damage or deficiency from excessive labor, sexual activity, food, emotional stress, specific causes for each individual should be considered when approaching each case. Conclusions : Korean Medical treatment allows for a tailored approach to each pathology according to age and duration of illness, and has strength in dealing with various situations such as emergency situations, excessive bleeding, blood stagnation. As such, application of Korean Medicine in abnormal uterine bleeding is highly appropriate.

복심곡선 레일이상마모 발생 저감 사례 (The Reduction Case of Occurrence of Abnormal Wearing of Rail in Compound Curve Part)

  • 김완술
    • 한국철도학회:학술대회논문집
    • /
    • 한국철도학회 2007년도 춘계학술대회 논문집
    • /
    • pp.1097-1106
    • /
    • 2007
  • Rail provides running tract for train and broadly and widely conveys the weight of the train exerted from the train wheels that the rail directly supports onto the cross tie and roadbed, and supports the cross-sectional pressure exerted by centrifugal force at curvatures. That is, stationary rail provides surface on which dynamic train runs and guarantees cross-sectional resistance to enable the vertical snake motion of the train wheels as well as to maintain lateral force at curvatures. Rail provides running surface on which train wheels can run smoothly, and secures vertical and lateral force. However, it undergoes continuous destructive reactions (wearing and damages) and abrasion of the cladding by the train wheels. It is obvious that wearing will result when two metal parts act against each other. However, occurrence of abnormal wearing such as rapid wearing of the rail side due to complex generation of various mechanisms at the contact surface between the rail and train wheel flange. It is not easy to simply examine the causes of occurrence of abnormal wearing of rail and train wheel flange. Although countless number of academicians and specialists are conducting researches on abnormal wearing of rail and vertical wearing of train wheels, I believe it is too early to argue on pros and cons due to insufficiency of officially verified information on the issue. This review will be focusing on the examples of repairs that reduced the generation of abnormal wearing of rail by reviewing and improving characteristics of wearing and slack, speed of the train and cant as well as status of lubricator by choosing the compound curves present in the section between the $Anguk{\sim}Jongno3-ga$ Stations of the Route No. 3 among the compound curve tracks of the Seoul Metro Routes No. 3 & 4 at which abnormal wearing is generated continuously.

  • PDF

기능성 소화불량증 환자의 위 미주신경 활성 및 유문부 기능에 대한 족삼리(足三里) 전침과 일반 체침 자극의 복합 효능 (Combination Effects of Zusanli(ST36) Electroacupuncture and Manual Acupuncture of other Acupoints on Gastric Vagal Nerve Activity and Pyloric Valve Function in Patients with Functional Dyspepsia.)

  • 김유승;윤상협
    • 대한한방내과학회지
    • /
    • 제29권3호
    • /
    • pp.621-628
    • /
    • 2008
  • Objectives : The aim of this study was to investigate changes of gastric vagal nerve activity and pyloric valve function after execution of combination treatments of both electroacupuncture at Zusanli(ST36) and manual acupuncture at other acupoints in patient with functional dyspepsia. Methods : Bowel sounds of 49 patients (18 male, 31 female) were recorded and their % of bowel sound (%BS) and ratio of dominant frequency (DF) were analyzed. Postprandial %BS was used to indicate the gastric vagal activity after eating. Ratio of postprandial/fasting dominant frequency was used to present the degree of pyloric valve function. According to values of %BS and DF ratio, each patient was classified into normal or abnormal (<6 %BS, hypoactivity: <1 DF ratio, dysfunction) group. For 2 weeks, patients received a treatment consisting of both electroacupuncture stimulation at Zusanli (ST36) and acupuncture at other meridian points. Variation of parameters shifting normal to abnormal or abnormal to normal was observed, and total cure rate was calculated. Results : Total cure rate of %BS was 16%, and that of DF was 37%. Patients who improved to normal value from abnormal or aggravated to abnormal level showed both significant difference in both vagal nerve hypoactivity and pyloric valve dysfunction, respectively. Conclusions : Analysis of bowel sound might be useful to evaluate both gastric vagal nerve activity and pyloric valve function. Combination effects of Zusanli (ST36) electroacupuncture and manual acupuncture of other acupoints showed a bidirectional effect in which their activity and function were in general improved. sometimes from aggravated to abnormal level.

  • PDF

일개 대학의 건강검진 결과에 대한 연구 (Study of Findings from Health Examinations among University Students)

  • 김정희;김현미;송미령
    • 한국보건간호학회지
    • /
    • 제14권2호
    • /
    • pp.260-270
    • /
    • 2000
  • This study aimed at examining participation rate in taking health examinations. abnormal findings. and recognition and responses for re-examination recommendation among junior students at a university. Data were collected by interviews and self-reports between March and April. 2000. five months after receiving findings of health examinations. Question items in the questionnaire were made by the researchers. Participation rate for the health examination was $22.5\%$ of all registered junior students: $25.4\%$ for men and $16.6\%$ for women. College of medicine ranked the first in the participation rate. Of the examinees. $22.8\%$ showed abnormal findings. Of those students with abnormal findings. 149 students who were registered at the time of data collection became the subjects of the present study. The average age of the subjects was 23.7 years. The proportion of those with very good or. good self-evaluated physical health was $24.1\%$. while the proportion for mental health was $55.1\%$. The most prevalent problem for men was liver problem and for women anemia. More than $92\%$ of the subjects were aware of their abnormal findings. Those who sought advice were $71.8\%$ and their parents were most frequently asked for advice. As for the contents. $33.7\%$ were advised to visit a hospital. Of the 65 students recommended for re-examination. $60.9\%$ with liver problems took re-examination. while $37.2\%$ with urine problems. The multiple responses of the reasons for not following the recommendation for re-examination were 'not a serious problem $(63.9\%)$,' 'having no time $(22.2\%)$,' Students' recognition of the importance of health examination should be raised to increase their participation rate. When abnormal findings were detected. parents need to be informed for achieving adequate follow-up. All the students with abnormal findings need to be consulted by university health personnel to facilitate proper actions.

  • PDF