• Title/Summary/Keyword: Active failure

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The Activation Guideline of Rural District and Eco-museum whole Area are Museum (농촌활성화정책과 지역통째로 박물관, 에코뮤지엄)

  • Bang, Han-Young;Choi, Hyo-Seung
    • Journal of the Korean Institute of Rural Architecture
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    • v.4 no.3
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    • pp.39-52
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    • 2002
  • Some projects being in force by the Ministry of Government Administration & Home Affairs and the Ministry of Agriculture & Forestry for farm village area activation offers experience activity of various form to city dwellers, and to farm village inhabitants, affirmative effect is expected in aspect that activation becomes possible for a lot of visitors. But, to farm village(rural district) area activation that huge budget and effort carried out successfully, there are some items that specialist, administration and the persons concerned must inspect together now. First, to project for farm village area activation succeeds; leading participation of inhabitants should be premised. Second, that stagnated economy revives is as rightful result that appears in case farm village area activation effort succeeds. But, can drop more highlights like the value pursuit of life in case put success or failure of all businesses in income enlargement. Third, because inhabitant cultivates own in making process, the attachment and pride for area can be inculcated. Doing not become focus is set to economical logic to do, the heritage of area as well as history culture, must consider that apply eco-museum concept that magnify nature heritage and industry heritage. Fourth, actually the plan period given usually is too shortly than received huge budget. Furthermore, in case it carries out by desirable inhabitants leading type so. Project that not consider the period that is cost to the statement of inhabitants' active opinion and finding out a point of compromise may be hard to get desirable result.

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Analysis of ICU Treatment on Resection of Giant Tumors in the Mediastinum of the Thoracic Cavity

  • Kang, Nai-Min;Xiao, Ning;Sun, Xiao-Jun;Han, Yi;Luo, Bao-Jian;Liu, Zhi-Dong
    • Asian Pacific Journal of Cancer Prevention
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    • v.14 no.6
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    • pp.3843-3846
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    • 2013
  • Objective: The purpose of this study was to assess prognosis after resection of giant tumors (including lobectomy or pneumonectomy) in the mediastinum. Materials and Methods: Patients with resection of a giant tumor in the mediastinum of the thoracic cavity received ICU treatment including dynamic monitoring of vital signs, arterial blood pressure and CVP detection, determination of hemorrhage, pulmonary function and blood gas assay, treatment of relevant complications, examination and treatment with fiber optic bronchoscopy, transfusion and hemostasis as well as postoperative removal of ventilators by invasive and non-invasive sequential mechanical ventilation technologies. Results: Six patients were rehabilitated successfully after ICU treatment with controlled postoperative errhysis and pulmonary infection by examination and treatment with fiber optic bronchoscopy without second application of ventilators and tubes after sequential mechanical ventilation technology. One patient died from multiple organ failure under ICU treatment due to postoperative active hemorrhage after second operative hemostasis. Conclusions: During peri-operative period of resection of giant tumor (including lobectomy or pneumonectomy) in mediastinum ofthe thoracic cavity, the ICU plays an important role in dynamic monitoring of vital signs, treatment of postoperative stress state, postoperative hemostasis and successful removal of ventilators after sequential mechanical ventilation.

Effect of Temperature on Particle Structure and Strength Characteristic of Sand and Weathered Granite Soil (온도변화가 모래 및 화강풍화토의 입자구조 및 강도 특성에 미치는 영향)

  • Yoo, Chung-Sik;Shin, Seung-Min
    • Journal of the Korean Geosynthetics Society
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    • v.14 no.2
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    • pp.57-70
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    • 2015
  • This paper presents the results of an investigation into the effect of forced temperature change cycles on physical and mechanical properties of sand and weathered granite soil. The effect of forced temperature change cylecs on the particle arrangement and the thermal conductivity was first investigated. A series of triaxial compression tests on the soils were also performed to look into the effect of temperature change cycles on the stress-strain-strength behavior. The results indicated that the forced temperature change cycle does not significantly affect the particle arrangement and thermal conductivity. It is shown however that the heating duration showed some effect on the deviatoric stress at failure while no significant effect due to the number of heating-cooling cycle was observed.

Web Cross Browsing of Korean Enterprises and Public Institutions According to International Guidelines (국제 표준을 통해 살펴 본 한국 기업과 공공기관의 웹사이트 호환성)

  • Suh, Eung-Kyo;Kim, Hong-Ki;Suh, Kil-Soo
    • Information Systems Review
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    • v.10 no.1
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    • pp.47-69
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    • 2008
  • Korea is one of the most advanced countries in the world in terms of information technologies (IT) applications and usages. However, its web browser market is so dominated by one company, and its web cross browsing according to international guidelines isquestioned. In this research, we have empirically examined web cross browsing of web sites of major companies and pubic institutions in Korea through different web browsers which conform international guidelines. In general, web cross browsing through Firefox was lower by 19% than that through Internet Explorer. Web cross browsing of public institutions was better than that of companies, and financial institutions were the worst. Typical cross browsing problems found with Firefox were inability to pay online, failure to play multimedia contents, and frame display errors. Causes of web cross browsing problems and suggestions for improving cross browsing are discussed.

Redundancy operation method for a distributed public address system (분산형 전관방송 시스템의 이중화 운영 방법)

  • Ryu, Taeha;Kim, Seungcheon
    • Journal of the Korea Convergence Society
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    • v.11 no.8
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    • pp.47-53
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    • 2020
  • In the case of a failure due to equipment deterioration in the public address system or a worker's mistake during construction, broadcasting becomes impossible. In this situation, we have designed a more advanced management broadcast system that can broadcast. The broadcasting service is operated using main broadcasting device, and local broadcasting device operates separately only in the local area. If the main broadcasting device becomes inoperable, the procedure for transferring the control activates the device with the local broadcasting devices based on data backed up by the main controller. This paper proposes an improved method of the conventional emergency broadcasting device duplication method. The existing method could not use the standby equipment in the normal state, but in the proposed method, the standby equipment can be used as local broadcasting equipment in usually. This method enables stable system operation while minimizing resource waste due to redundant configuration of expensive devices.

Modified Brostrom Operation for Revision Lateral Ankle Ligament Reconstruction (실패한 만성 족근관절 외측 재건술에서의 변형 Brostrom 술식의 결과)

  • Lee, Kyung-Tai;Young, Ki-Won;Kim, J-Young;Kim, Eung-Soo;Cha, Seung-Do;Park, Shin-Yi
    • Journal of Korean Foot and Ankle Society
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    • v.8 no.2
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    • pp.149-152
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    • 2004
  • Purpose: We assessed the clinical results of modified Brostrom procedure as a revision method after failure of a primary reconstruction. Materials and Methods: This is a retrospective study of seven patients treated with Modified Brostrom procedure after failed lateral ankle ligament reconstruction between 1996 and 2002. Instability symptom developed average 4.7 month after the initial reconstruction surgery at other clinics. All patients had significant functional impairment before surgery and not responded to conservative protocols. Modified Brostrom procedure was applied to all patients. Results: The average follow up was 51 months (18 to 84). Seven of eight patients had clinical stability following revision reconstruction, six patients (75%) returned to their previous functional level. American Orthopaedic Foot and Ankle Society ankle-hindfoot scores averaged 87.5. There is no difference in active or passive range of motion of plantar flexion or dorsiflexion when compared to the contralateral ankle. However, three patients were noted to have lost some degree of inversion when compated to contralateral ankle. Two patients had osteochondral lesion and multiple spurs and had pain around the ankle that prevented their full recovery. One patient complained of persistent pain which was considered complex regional pain syndrome. Conclusion: Though the outcome of the Modified Brostrom procedure as a method of revision surgery was less satisfactory compared to the results of primary ankle reconstruction, it would be an appropriate option when concomitant abnormalities were not accompanying.

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Integrated Chassis Control System with Fail Safety Using Optimum Yaw Moment Distribution (최적 요모멘트 분배 방법을 이용한 고장 안전 통합 섀시 제어기 설계)

  • Yim, Seongjin
    • Transactions of the Korean Society of Mechanical Engineers A
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    • v.38 no.3
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    • pp.315-321
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    • 2014
  • This paper presents an integrated chassis control system with fail safety using optimum yaw moment distribution for a vehicle with steer-by-wire and brake-by-wire devices. The proposed system has two-level structure: upper- and lower-level controllers. In the upper-level controller, the control yaw moment is computed with sliding mode control theory. In the lower-level controller, the control yaw moment is distributed into the tire forces of active front steering(AFS) and electronic stability control(ESC) with the weighted pseudo-inverse based control allocation(WPCA) method. By setting the variable weights in WPCA, it is possible to take the sensor/actuator failure into account. In this framework, it is necessary to optimize the variables weights in order to enhance the yaw moment distribution. For this purpose, simulation-based tuning is proposed. To show the effectiveness of the proposed method, simulations are conducted on a vehicle simulation package, CarSim.

Failure of immunization with Naegleriu fowleyi in mice born to immune mothers (Naegleria fowleri로 면역된 어미에서 태어난 마우스의 방어면역 결여)

  • 임경일;이근태
    • Parasites, Hosts and Diseases
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    • v.23 no.1
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    • pp.151-155
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    • 1985
  • Female BALB/c mice weighing 18~20g were immunized by three injections of $1{\times}10^6$ Naegleria iowleri trophozoites intraperitoneally at the interval of one week 6 times for the pregnant mice and 3 times for the offspring mice. One week after immunization the mice were challenged intranasally with N. fcwleri trophozoites $5{\times}10^4$ under secobarbital anesthesia. Experimental primary amoebic meningoencephalitis developed between day 7 and 16 after infection. All mice were dead due to amoebic meningoencephalitis in all experimental groups except in the offspring born to non-immune mothers. Mean of survival time, which is the duration of survival of mice from infection to death, was delayed in the groups of mice born to immune mothers, immune mice born to immune mothers. Active or passive protective immunity against N. fowleri infection was demonstrated in the ismunized mice and mice born to immune mothers. But the effectiveness of immunization was greatly impaired in terms of mortality in the immune mice born to immune mothers when N. fowulsri was infected intranasally.

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Chest Injuries due to Blunt Chest Trauma (둔좌상에 의한 흉부손상의 임상적 관찰)

  • Jin, Jae-Kwon;Park, Choo-Chul;Yoo, Seh-Young
    • Journal of Chest Surgery
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    • v.12 no.4
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    • pp.418-423
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    • 1979
  • Chest injuries due to blunt trauma often result in severe derangements that lead to death. And we have to diagnose and treat the patients who have blunt chest trauma immediately and appropriately. A clinical analysis was made on 324 cases of chest injury due to blunt trauma experienced at department of Thoracic and Cardiovascular Surgery, College of Medicine, Kyung Hee University during 8-year period from 1972 to 1979. Of 324 patients of blunt chest injuries, there were 189 cases of rib fracture, 121 of hemothorax or/and pneumothorax, 108 of soft tissue injury of the chest wall only, 41 of lung contusion, 24 of flail chest, 13 of scapular fracture, 7 of diaphragmatic rupture and others. The majority of blunt chest injury patients were traffic accident victims and falls accounted for the next largest group of accidents. Chest injuries were frequently encountered in the age group between 3rd decade and 4th decade [60%] and 238 patients were male comparing to 86 of female [Male: Female = 3:1 ]. In the patients who have the more number of fractured ribs, the more incidence of intrathoracic injury and intraabdominal organ damage were found. The principal associated injuries were head injury on 58 cases, long bone fractures on 37, skull fractures on 12, pelvic fractures on 10, renal injuries on 6 and intraabdominal organ injuries on 5 patients. The principle of early treatment of chest injury due to blunt trauma were rapid reexpansion of the lung by closed thoracotomy which was indicated on 96 cases, but open thoractomy was necessary on 14 cases because massive bleeding, intrapleural hematoma and/or fibrothorax, or diaphragmatic laceration-On 15 cases who were young and have multiple rib fracture with severe dislocation delayed elective open reduction of the fractured ribs with wire was done on the purpose of preserving normal active life. The over all mortality was 2.8% [9 of 324 cases] due to head injury on 3 cases, massive bleeding on 2,wet lung syndrome, acute renal failure on 1 and septicemia on 1 patient.

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Hazard Evaluation of Runaway Reaction in Deboronation Process Using H2O2 in DIET Synthesis of Pharmaceutical Raw Material (의약품 원료 DIET 합성 중 H2O2를 이용한 붕소제거 반응공정에서의 폭주반응 위험성 평가)

  • Kim, Won Sung;Lee, Keun Won
    • Journal of the Korean Institute of Gas
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    • v.22 no.4
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    • pp.49-54
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    • 2018
  • In the Active Pharmaceutical Ingredient(API) manufacturing company, since the product is produced by the chemical reaction, fire and explosion are frequently occurred in the process of inputting the raw powder as the chemical reaction stage. There are not many studies on safety measures through analysis of cause of accident in the actual chemical reaction stage. In this study, we investigated the heat flow in the boron removal reaction process to investigate the risk in the chemical reaction stage. The study reaction process was performed by using the reaction calorimeter for the products synthesized at the actual raw material in pharmaceutical factory. The risk was estimated by comparing the maximum temperature of the synthesis reaction, which can generate heat due to the failure of cooling in the actual manufacturing process, and the technical temperature. These results are applied to commercial manufacturing sites and safety measures to control the risk of runaway reaction due to reaction heat are suggested.