• Title/Summary/Keyword: Abnormal Displacement

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The Economic Impacts of Abnormal Climate on Fall Chinese Cabbage Farmers and Consumers (이상기후 발생이 가을배추 생산자 및 소비자에게 미치는 영향)

  • Cho, Jae-Hwan;Suh, Jeong-Min;Kang, Jum-Soon;Hong, Chang-Oh;Shin, Hyun-Moo;Lee, Sang Gyu;Lim, Woo-Taik
    • Journal of Environmental Science International
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    • v.22 no.12
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    • pp.1691-1698
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    • 2013
  • The purpose of this article is analyzing the economic impacts of abnormal climate on fall chinese cabbage farmers and consumers in Korea, with employing the equilibrium displacement model. Our results show that there were little difference in gross farm income, even though there were significant yield reductions due to abnormal climate changes. However periodic occurrences of abnormal climates caused serious damage to consumption levels which had declined by 10.6~17.1 percent with higher prices by 15.3~24.6 percent than normal climate years since 1990.

Back Analysis of Earth Retaining Wall Using Increment of Sequential Displacement (변위증분을 이용한 흙막이 벽의 역해석에 관한 연구)

  • 장범수;이승훈;김종민;김수일
    • Journal of the Korean Geotechnical Society
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    • v.19 no.5
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    • pp.7-14
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    • 2003
  • In the back analysis of braced excavation based on displacement measurements, the accumulated errors of abnormal displacement caused by unexpected loads are usually observed. To minimize such errors, in this study, displacement increment was used fur back analysis rather than displacement for the conventional method. That is, the increment of sequential displacement is used as the objective function and the back analysis program is developed by taking advantage of sequential linear programming method by modified method of feasible directions. Based on small scale model test, the analysis of proposed method is verified.

Economic Impacts of Abnormal Climate on Total Output of Red Pepper (이상기후에 따른 건고추 생산농가의 총수입 변화 계측)

  • Cho, Jae-Hwan;Suh, Jeong-Min;Kang, Jum-Soon;Hong, Chang-Oh;Lim, Woo-Taik;Shin, Hyun-Moo;Kim, Woon-Won
    • Journal of Environmental Science International
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    • v.23 no.4
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    • pp.707-713
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    • 2014
  • The purpose of this article is analyzing the economic impacts of abnormal climate on total revenue of red pepper in Korea, with employing the equilibrium displacement model. Our simulation results show the rate of yield change, price change, and total revenue change according to the climate change scenarios. In th case of by RCP 8.5 Scenario, red pepper production volume would be expected to decrease by 77.2% compared to 2012 while price increasing by 29.6%. As a result, total revenue to be returned to farmers would be reduced by 47.6% than it was in 2012. In contrast, total revenue would be expected to decline by 29.6% according to RCP 4.5 scenario.

A Case Study on the Feed-Back Analysis and the Reinforcement Plan using the Measurement Data of Excavation Site close to the Existing Underground Box (기존 지하 Box 근접 굴착공사 현장의 계측결과를 이용한 역해석 및 보강방안의 적용 사례)

  • Lee, Jung-Hee;Noh, Won-Seok;Jeong, Soon-Ig;Kim, Wan-Jong
    • Proceedings of the Korean Geotechical Society Conference
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    • 2010.09a
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    • pp.445-456
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    • 2010
  • Massive underground excavation can be carried out recently due to the technical development of the excavation for retaining wall. Feed-back analysis using field measurement results is recommended to secure the stability of the construction because calculated values at stages of the design and the construction are uncertain. Reinforcement plan should be established based on the result of it. This study deals with the underground excavation site, which is under construction and is close to structure(subway) at downtown area. The result of feed-back analysis on the measurement data of displacement at multi-soil layers was reflected to make a plan for safe construction. This case study can be useful information for contingency plan on abnormal displacement which can be occurred at similar underground excavation.

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Spinal Deformity Detection Based on the Evaluation of Middle Line´s Displacement on a Moire Image of a Human Back

  • Kim, Hyoungseop;Seiji Ishikawa;Yoshinori Otsuka;Hisashi Shimizu;Takashi Shinomiya
    • 제어로봇시스템학회:학술대회논문집
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    • 2001.10a
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    • pp.105.1-105
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    • 2001
  • In this paper, a technique is described for classifying normal cases and abnormal cases in automatic spinal deformity detection by computer based on moire topographic images of human backs. Displacement is evaluated statistically between the middle line extracted from the entire moire image and the middle line obtained from a small rectangle area defined on the moire image. The middle line is calculated employing a developed potential symmetry analysis technique. The displacement is calculated in several regions and the mean and the standard deviation of the displacement values are chosen as two features. A linear discriminant function (LDF) is defined on the 2-D feature space based on the Mahalanobis distance and the features are classified into two categories, i.e., normal and ...

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Relationships between Free Gaps and Abnormal Noises of Vehicle Stabilizer Links (차량용 스테빌라이져 링크의 유격과 이상소음 발생의 상관관계)

  • Han, Changwan;Kim, Hanjong;Yoo, Young-Jae;Park, Seonghun
    • Transactions of the Korean Society of Automotive Engineers
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    • v.25 no.1
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    • pp.28-34
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    • 2017
  • The vehicle stabilizer link is one of the suspension components that reduces the bumping and rolling during vehicle driving. However, this stabilizer link could be a source of the abnormal noises when its free gaps have higher than normal values. Therefore, the current study aims at investigating the quantitative relationships between the abnormal noises and free gaps of the vehicle stabilizer links, as well as the length of time that the vehicle stabilizer links could be used without generating abnormal noises. In this study, the abnormal noises were measured based on the magnitude of the stabilizer link vibration, while the free gaps were quantified through the force-displacement curves of the stabilizer links. Harsh durability tests were also conducted in order to quantify the operating cycles of the stabilizer links before generating the abnormal noises, along with the concomitant measurements of the free gaps. The current results showed that the abnormal noises of the stabilizer links were detected when its free gaps were larger than 0.12 mm. However, the free gaps of the stabilizer links, which are bigger than 0.1 mm, produced the abnormal noises at 1.5 million cycles under harsh durability test conditions. A parametric study in the future that would reflect the different shapes and sizes of the stabilizer links for diverse vehicles could determine more generalized relationships between the abnormal noises and free gaps of the vehicle stabilizer links.

Application of x-MR control chart on monitoring displacement for prediction of abnormal ground behaviour in tunnelling (터널 시공 중 이상 거동 예측을 위한 계측 변위의 x-MR 관리도 활용)

  • Yun, Hyun-Seok;Song, Gyu-Jin;Shin, Young-Wan;Kim, Chang-Yong;Choo, Seok-Yeon;Seo, Yong-Seok
    • Journal of Korean Tunnelling and Underground Space Association
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    • v.16 no.5
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    • pp.445-458
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    • 2014
  • The displacement data monitored during tunnel construction play a crucial role in predicting the behaviour of ground around and ahead of excavation face. However, the management criteria for monitoring data are not well established especially for the reliable analysis on varying aspect of displacement data along with chainage. In this study, we evaluated the applicability of x-MR control chart method, which is kind of applied statistical management method, for the analysis of displacement monitoring data in terms of prediction of possible collapse or induced cracks. As a result, a possible abnormal behaviour could be predicted beforehand at 5 ~ 13 m ahead or on at least one day before it occurred by using x-MR control chart method. In addition, it is noted that the moving range for the x-MR control chart should be set to 5~10 for this purpose.

Clinical Studies on Abomasal Displacement of Dairy Cows (유우제사위전위증에 관한 임상적 조사연구)

  • Cheong Chang-Kook;Jo Choong-Ho;Sung Jai-ki;Choi Hee-In;Hwang Woo-Suk;Nam Tchi-Chou
    • Journal of Veterinary Clinics
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    • v.1 no.1
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    • pp.11-23
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    • 1984
  • Epizootiolosical factors of 166 cows with abomasal displacement were studied and in 21 out of 166 cows, the functions of liver and kidney were also tested. 1. Incidence of abomasal displacement was perdominant in small sized dairy herd less than 15 cows, using area of paddock below 165㎡. 2. Out of 166 cows with abomasal displacement, 116 cows (70%) were found left sided displacement and 50 cows (30%) were right. 3. Generally, one to two weeks were taken before treatment of veterinarian following onset of sign of the diseases. Therefore many cases were found to be severe in their illness. 4, Incidence rate of abomasal displacement was predominant in summer season (June, July and Au-gust). However, occurence of the disease was continuous throughout the year. About 80 percent of abomasal displacement was distributed from first to third purturition. 5. High milk production and feeding with high concentrates and low roughage showed a tendendy to occurs the disease. 6. Approximately 75% of abomasal displacement was distributed within 1 month pre and post partum. 7. Cows with abomasal displacement consumed little concetrates and 75% of cows with abomasal displacement passed abnormal fecal material. 8. Sixty six out of 166 cows with abomsal displacement were coincident with diseases such as retained placenta, metritis, traumatic reticulo-peritonitis and mastitis. 9. In many cass of abomasal displacement, abomasum was extended with gas. 10. Activities of AST ana LDH showed the trends to reduce after surgical intervention comparing with pre-surgery. Bilirubin concentration markedly decreased after surgical treatment comparing with pre-surgery. 11. The concentration of BUN and creatinine moderatly decreased after surgery compared with pre-surgery.

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Ebstein's Anomaly -A Case Report- (엡스타인 심기형 -1례 보고-)

  • 전찬규
    • Journal of Chest Surgery
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    • v.27 no.1
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    • pp.57-59
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    • 1994
  • Ebstein`s anomaly, a rare congenital cardiac anomaly, is characterized by downward displacement of abnormal tricuspid valve. Indication for surgical repair and the optimal surgical approach are still controversy. Recently, we experience a case of Ebstein anomaly, which was treated by atrilized right ventricular plication and annuloplasty. The patient was discharged with good result on 17th post-operative day.

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A STUDY OF THE POSTERIOR SLOPE OF THE ARTICULAR EMINENCE IN PATIENTS WITH INTERNAL DERANGEMENT (악관절 내장증환자에서 관절돌기의 후방경사에 관한 연구)

  • Lee Geon-Ill;You Dong-Soo
    • Journal of Korean Academy of Oral and Maxillofacial Radiology
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    • v.21 no.2
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    • pp.225-234
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    • 1991
  • This study was designed to investigate the effects of the posterior slope of the articular eminence and the condylar angulation to the posterior slope of the articular eminence on internal derangement of TMJ. The materials consisted of 78 transcranial oblique lateral projections of 31 normal subjects and 47 internal derangement patients. The results were as follows: 1. The posterior slope of the articular eminences in normal group were larger than that in abnormal group, but there were not significant differences between each group about the condylar angulation to the posterior slope of the articular eminences. 2. The differences between in the right and left sides in patients who were affected unilaterally and bilaterally were larger than that in normal groups. 3, In patients affected unilaterally, there were not significant differences between affected joints and unaffected joints about the posterior slope of the articular eminence and the condylar angulation to the posterior slope of the articular eminence. 4. In abnormal group, there were significant differences between each group about condylar angulation to the post, slope of the articular eminence (ant. disk displacement without reduction > fibrous adhesion > ant. disk displacement with reduction), but not about the post, slope of the articular eminence.

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