• Title/Summary/Keyword: Cause Diagnosis

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The Experimental Verification and Fault Cause Analysis of Breakdown on the 6.6kV class Cable Joint (6.6kV급 케이블 중간접속부의 절연파괴 사고원인 분석과 실험 검증)

  • Kim, Young-Seok;Shong, Kil-Mok;Jung, Jin-Su
    • Proceedings of the KIEE Conference
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    • 2009.07a
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    • pp.1385_1386
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    • 2009
  • In this paper, we examined the faulted cable joint through the external form analysis, material analysis, experimental verification and it's cause diagnosis system. It was not observed the voild, sharp material from the external form analysis and material variation. From the experimental verification, the thickness decrease of an insulator decreased ac breakdown strength suddenly and the breakdown traces of the insulator that was damaged by knife displayed elliptic shape. Thus, the faulted cable is assumed to accident that become dielectric breakdown by the deterioration of insulation performance that can happen when work.

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Nonobstructive Bilateral Hydronephrosis & Hydroureter from Nephrogenic Diabetes Insipidus with a Novel Mutation of AQP2 Gene (p.A123G)

  • Song, Ki Sup;Soo, Jeon Ihn;Namgoong, Mee Kyung
    • Childhood Kidney Diseases
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    • v.20 no.2
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    • pp.88-91
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    • 2016
  • Nephrogenic diabetes insipidus (NDI) can cause nonobstructive hydronephrosis. Congenital NDI (CNDI) is caused by a genetic mutation. This case report presents a 12-year-old girl who was incidentally diagnosed with nonobstructive hydronephrosis due to NDI caused by AQP2 gene mutation after being evaluated for microscopic hematuria found on routine health examination at school. The patient's medical and family history was unremarkable, and she complained of nocturia only at the time of the clinic visit. Bilateral hydronephrosis on abdominal ultrasonography prompted a water deprivation test, leading to diagnosis of NDI. Genetic study confirmed p.Asn (AAC)123Ser (AGC) in exon 2 of the AQP2 gene. Polyuria and hydronephrosis improved following arginine-vasopressin therapy. CNDI responsive to treatment should be considered as a possible cause of nonobstructive hydroureter.

A New Approach to Determine the Direction and Cause of Voltage Sag

  • Ahn, Seon-Ju;Won, Dong-Jun;Chung, Il-Yop;Moon, Seung-Il
    • Journal of Electrical Engineering and Technology
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    • v.3 no.3
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    • pp.300-307
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    • 2008
  • Event source locating is very important to improving the power quality level. This paper presents a method to determine the relative location of the voltage sag source according to the cause. For this, the concept of the relative location of the source is defined first. Then, the main causes of voltage sag are classified and their characteristics are discussed. From these investigations, the rules to determine the relative location of event source are proposed for each type and the overall algorithm to identify the relative location and the kind of event source is presented. Finally, the proposed method is applied to the IEEE 13-bus test system and it is verified that the method can help to pinpoint the accurate location of the event source.

Pituitary Apoplexy Presenting as Isolated Oculomotor Nerve Palsy

  • Yang, Moon-Seok;Cho, Won-Ho;Cha, Seung-Heon
    • Journal of Korean Neurosurgical Society
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    • v.41 no.4
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    • pp.246-247
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    • 2007
  • The most common cause of isolated oculomotor nerve palsy is ischemia of the peripheral nerve caused by a disease, such as diabetes mellitus. Another common cause of isolated oculomotor nerve palsy is compression by an intracranial aneurysm, usually an posterior communicating artery aneurysm. However, it is extremely rare in the pituitary tumor. We report an unusual case of pituitary adenoma presenting with isolated oculomotor nerve palsy in the setting of pituitary apoplexy. We suggest that pituitary apoplexy should be included in the differential diagnosis of a patient with isolated oculomotor nerve palsy and early surgery should be considered for preservation of oculomotor nerve function.

Ultrasound Guided Transversus Abdominis Plane Block for Anterior Cutaneous Nerve Entrapment Syndrome

  • Sahoo, Rajendra Kumar;Nair, Abhijit S.
    • The Korean Journal of Pain
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    • v.28 no.4
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    • pp.284-286
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    • 2015
  • Anterior cutaneous nerve entrapment syndrome (ACNES) is one the most common cause of chronic abdominal wall pain. The syndrome is mostly misdiagnosed, treated wrongly and inadequately. If diagnosed correctly by history, examination and a positive carnett test, the suffering of the patient can be relieved by addressing the cause i.e. local anaesthetic with steroid injection at the entrapment site. Conventionally, the injection is done by landmark technique. In this report, we have described 2 patients who were diagnosed with ACNES who were offered ultrasound guided transverses abdominis plane (TAP) injection who got significant pain relief for a long duration of time.

Diagnosis of neuropathic foot of diabetics using photo-plethysmography (용적맥파 측정법을 이용한 신경병증 당뇨병 족부질환의 진단)

  • Nam, Ki-Chang;Ryu, Chang-Yong;Jung, Won-Hyuk;Kim, Jin-Tae;Park, Joong-Hoon;Kim, Deok-Won
    • Proceedings of the KIEE Conference
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    • 2005.05a
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    • pp.39-41
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    • 2005
  • The population of diabetes is continuously increasing because of the economic development and the lifestyle modification. If diabetes become chronic condition, it can cause various complications. Among many other complications, diabetic foot is the most fatal issue since it may require amputation of the legs. Diabetic foot has three different types such as neuropathic, neuro-ischemic and ischemic. Among these types, patients of neuropathic foot experience sensory abnormality. Nerve conduction velocity (NCV) is used for diagnosing neuropathic foot but this method uses strong electric stimulus to cause severe pain to the patients In this study, two channel photo-plethysmography was used as noninvasive screening tool for distinguish neuropathic foot and normal group by observing blood flow of both finger and toe simultaneously.

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The Management Method for Preventing Frequent Defect about Each Inspection Part from The Data Analysis of Pre-qualification of Residential Building Reconstruction (주택 재건축 예비평가 자료분석을 통한 분야별 주요결함의 예방·조치방안)

  • Kim, chun hag;Bae, cheol hak
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2008.11a
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    • pp.181-186
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    • 2008
  • The purpose of this study is analyzing the frequent defect about each inspection part of Pre-qualification of residential building reconstruction and finding the cause of occurrence so that can supply a solution of the problem during the plalnning and constructure. The frequent defects are naturally following the deterioration and more occur in the structure body than a skin. The meaning that supply the cause and the managing method for preventing frequent defects about each inspection part is as follows. To prevent the defects, it is needed that the choice of the appropriate materials, giving a sufficient space for facilities, reliable constructure for the part of expecting the defects. The quality of life will go up due to making a good dwelling environment and extending the life cycle of structures from the inspection and managing the part of expecting defects.

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Stability evaluation of foundation settlement of power transmission tower (송전철탑의 기초침하에 대한 안정성 평가)

  • Lee, Dae-Soo;Cho, Hwa-Kyung;Kim, Dae-Hong;Ham, Bang-Uk
    • Proceedings of the Korean Geotechical Society Conference
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    • 2005.03a
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    • pp.687-696
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    • 2005
  • Safety diagnosis was conducted to evaluate the long-term stability evaluation of power transmission tower of which deformation of the upper structural elements occurred. To assess the cause of the structural deformation, field investigation including BIPS, down-hole test, concrete pile coring and finite element analysis were carried out. From these studies, the major cause of deformation was found due to the heavily fractured layer and weathered soil topography at the pile tip area. The cement-milk grouting method was proposed to reinforce these weak zone around the pile tip area. Also, the increase of cross-section and stiffness for steel members of upper tower structures was suggested. Instrumental monitoring was proposed as well to verify reinforcing effect.

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Study of Qi-pattern and Syndrom in Donguibogam ("동의보감(東醫寶鑑)" 목록(目錄) 중 '기(氣)' 자(字)가 포함된 병증(病證)에 대한 연구)

  • Lee, Seon-Goo
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.26 no.4
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    • pp.427-431
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    • 2012
  • Pattern identification is the process of overall analysis of clinical data to determine the location, cause and nature of a patient's disease and achieving a diagnosis of a pattern and syndrome. In Korean medicine, Pattern identification is very important act. In order to get good Pattern identification act is important to understand the Pattern and syndrom concept. In this studies, I would like to know Qi-Patten and syndrom means in Donguibogam. So, I looking for analysis that could be associated with the Qi-pattern and syndrom in Donguibogam. As a result, Qi-pattern and syndrom related to the Jeongjisang(情志傷). Jeongjisang(情志傷) is used in referring to illness related to unhealthy emotions. It also refers to illness where Jeongji(情志) plays a role in creating a more direct cause of illness in the larger pathogenic process.

Sleep-Related Eating Disorder (수면 관련 식이 장애)

  • Park, Young-Min
    • Sleep Medicine and Psychophysiology
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    • v.18 no.1
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    • pp.5-9
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    • 2011
  • Sleep-related eating disorder (SRED) is a newly recognized parasomnia that describes a clinical condition of compulsive eating under an altered level of consciousness during sleep. Recently, it is increasingly recognized in clinical practice. The exact etiology of SRED is unclear, but it is assumed that SRED might share features of both sleepwalking and eating disorder. There have been also accumulating reports of SRED related to the administration of various psychotropic drugs, such as zolpidem, triazolam, olanzapine, and combinations of psychotropics. Especially, zolpidem in patients with underlying sleep disorders that cause frequent arousals, may cause or augment sleep related eating behavior. A thorough sleep history is essential to recognition and diagnosis of SRED. The timing, frequency, and description of food ingested during eating episodes should be elicited, and a history of concurrent psychiatric, medical, sleep disorders must also be sought and evaluated. Interestingly, dopaminergic agents as monotherapy were effective in some trials. Success with combinations of dopaminergic and opioid drugs, with the addition of sedatives, has also been reported in some case reports.