• 대한전기학회:학술대회논문집
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• 대한전기학회 2000년도 하계학술대회 논문집 C
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• pp.2026-2028
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• 2000

As the results of evaluation of its performance for 300 kN Ball and Socket type suspension insulators. There was electrically internal puncture of the solid insulating body of the insulating due to the steep front impulse voltage, which usually occurs puncture before external flash-over of insulators, moreover we have obtained satisfactory results in power arc test of 7.2kA cycle fatigue test with high qualify control index of 4.6, especially we have obtained more satisfactory results than that before improvement of its materials.

• 대한전기학회논문지:전기물성ㆍ응용부문C
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• 제51권2호
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• pp.80-84
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• 2002

This paper presents some of the results of current research on 400kN Suspension Insulator Design. In this paper, authors carried out 2-dimensional field calculation in order to analyse dielectric characteristics of the insulator unit and 3-dimensional field calculation in order to analyse dielectric characteristics of the insulator strings. And the results of puncture tests of insulators were compared with the required field intensity of the insulator As results, it was found that electric field on the insulator unit is severest between two triple junctions, dielectric characteristics of insulator strings are much influenced by the surrounding configuration and the manufactured insulators have good results of puncture tests.

• 한국전기전자재료학회논문지
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• 제13권3호
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• pp.259-264
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• 2000

The paper provides the characteristic analyses of porcelain suspension insulators. The comparisons of characteristics were made as a function of failed and unfailed insulators which had ben used in the fields. This paper also describes the failure modes occurred in the fields. The aging of cement corrosion of metal breaking of shed puncture in the head and separation of glaze are different failure modes for porcelain suspension insulators. Among these failure modes the puncture breaking and glaze problems were major concerns in this research. The cracks porosities of porcelain and micro-crystals on the graze were the causes of these failures. These results were confirmed by conducting various failure analyses.

• 대한한방부인과학회지
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• 제21권1호
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• pp.150-167
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• 2008

Purpose: This is a following study of preceding study about application and improvement of acupuncture benefits in OB & GY disease that was performed in 2007. And this study was performed to complement and compare with a preceding study. Methods: The questionnaire used in preceding survey was distributed to general korean medical doctors who have mainly worked in oriental medical clinic. And results of this survey was compared with results of preceding survey. Results: Results of two surveys were almost similar. 1. The common suitable the sick and wounded name of Ob & Gy disease thought be added in Intra-abdominal acupuncture(腹腔內; CV13 ${\cdot}$ CV16 ${\cdot}$ CV10) in two surveys were dysmenorrhea(K05). infertility(K15), JingHa(pelvic tumor) (K11). In Puncture each adjoining acu-points in one insertion(透刺; SP6-GB39)were dysmenorrhea(K05), climacteric syndrome(K04). amenorrhea (K03), In Puncture each adjoining acu-points in one insertion(透刺; PC6-TE5) were climacteric syndrome(K04), hyperemesis(K16.0), dysmenorrhea(K05). 2. The common acupuncture benefits items that postpartum pain syndrome(K29) should be added as suitable the sick and wounded name were Intra-articular acupuncture(關節內; LI15, SI10, GB30), Intervertebral acupuncture (脊椎間; GV14, 16, 6, 4, 12, 11, 9, 8, 3), Puncture each adjoining acu-points in one insertion (透刺; SP6-GB39). Conclusion: Based on this study, Survey to more KMDs should be performed. And the academic and clinical verifications that supports this results should be supplied.

• The Korean Journal of Pain
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• 제31권4호
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• pp.296-304
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• 2018

Epiduroscopy is defined as a percutaneous, minimally invasive endoscopic investigation of the epidural space. Periduroscopy is currently used mainly as a diagnostic tool to directly visualize epidural adhesions in patients with failed back surgery syndrome (FBSS), and as a therapeutic action in patients with low back pain by accurately administering drugs, releasing inflammation, washing the epidural space, and mechanically releasing the scars displayed. Considering epiduroscopy a minimally invasive technique should not lead to underestimating its potential complications. The purpose of this review is to summarize and explain the mechanisms of the side effects strictly related to the technique itself, leaving aside complications considered typical for any kind of extradural procedure (e.g. adverse reactions due to the administration of drugs or bleeding) and not fitting the usual concept of epiduroscopy for which the data on its real usefulness are still lacking. The most frequent complications and side effects of epiduroscopy can be summarized as non-persistent post-procedural low back and/or leg discomfort/pain, transient neurological symptoms (headache, hearing impairment, paresthesia), dural puncture with or without post dural puncture headache (PDPH), post-procedural visual impairment with retinal hemorrhage, encephalopathy resulting in rhabdomyolysis due to a dural tear, intradural cyst, as well as neurogenic bladder and seizures. We also report for first time, to our knowledge, a case of symptomatic pneumocephalus after epiduroscopy, and try to explain the reason for this event and the precautions to avoid this complication.

• Archives of Plastic Surgery
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• 제39권5호
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• pp.546-550
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• 2012

Background This study was designed to introduce the feasibility of toe tissue transfer without venous outflow for fingertip reconstruction. Methods Five cases of fingertip defects were treated successfully with this method. Four cases were traumatic fingertip defects, and one case was a hook-nail deformity. The lateral pulp of a great toe or medioinferior portion of a second toe was used as the donor site. An arterial pedicle was dissected only within the digit and anastomosis was performed within 2 cm around the defect margin. The digital nerve was repaired simultaneously. No additional dissection of the dorsal or volar pulp vein was performed in either the donor or recipient sites. Other surgical procedures were performed following conventional techniques. Postoperative venous congestion was monitored with pulp temperature, color, and degree of tissue oxygen saturation. Venous congestion was decompressed with a needle-puncture method intermittently, but did not require continuous external bleeding for salvage. Results Venous congestion was observed in all the flaps, but improved within 3 or 4 days postoperatively. The flap size was from $1.5{\times}1.5cm^2$ to $2.0{\times}3.0cm^2$. The mean surgical time was 2 hours and 20 minutes. A needle puncture was carried out every 2 hours during the first postoperative day, and then every 4 hours thereafter. The amount of blood loss during each puncture procedure was less than 0.2 mL. In the long-term follow-up, no flap atrophy was observed. Conclusions When used properly, the free toe tissue transfer without venous anastomosis method can be a treatment option for small defects on the fingertip area.

• The Korean Journal of Pain
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• 제2권1호
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• pp.89-93
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• 1989

We performed the autologous epidural blood patch (AEBP) for the relief of headache and other related symptoms following dural punctures of the lumbar region during 8 years from 1981 to 1988. The total of 37 patients with the patching consisted of 9 cases in 3007 of spinal anesthesia, 12 accidental dural punctures in 4283 cases of lumbar epidural anesthesia, 12 cases in 4747 of epidural analgesia for back pain control, 3 cases of myelography and a case of diagnostic lumbar puncture. The headaches were relieved completely in 35 cases following the first AEBP and the remaining two were also relieved following the second AEBP. We think that the AEBP for postdural-puncture headache is the treatment of choice.

• 한국항해항만학회지
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• 제37권2호
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• pp.149-154
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• 2013

이 논문은 파공봉쇄장치(Liquid Spill Stopper) 성능 검증 실험에 대한 문제를 다룬다. 실험을 통해 선체에 파공이 발생한 경우 파공 봉쇄장치를 사용하여 신속하고 효율적으로 대응 및 봉쇄할 수 있는지를 가늠할 수 있다. 이 연구에서 쓰인 방법은 선체의 파공으로 해수가 유입할 때 발생하는 압력에 대한 실험 장치와 선박에 부착한 후 운항 중 분리 속도에 대한 실험이다. 이 논문의 주요 결과는 다음과 같다. 첫째, 직경 40mm 및 100mm 파공에서 1.0bar의 압력에도 제 성능을 발휘했다. 둘째, 선체 중앙에서 선미 방향으로 흘수선상 300mm, 흘수선, 흘수선하 300mm에 각각 2개씩 6개의 파공봉쇄장치를 부착한 채 항속을 높이기 시작한 결과, 해군 작전속도(18knots)를 상회하였으며 최초로 선수 흘수선에 부착한 것이 20.2knots에서 분리하였으므로 함정의 작전속도에 지장이 없을 뿐만 아니라 일반 선박의 선체 파공에서도 침수 방지 기능을 제공할 수 있다.

• 한국식품과학회지
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• 제16권3호
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• pp.309-313
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• 1984

츄잉검의 기계적(機械的) 물성(物性)과 관능적(官能的) 물성(物性) 및 기호성(嗜好性)과의 상관관계로부터 츄잉검의 텍스쳐를 잘 표현하는 물성(物性)을 찾아내었고 대표적(代表的)인 기계적(機械的) 물성(物性)으로부터 기호성(嗜好性)을 여측(予測)하는 식(式)과 ideal texture profile을 제시하였다. 츄잉검의 텍스쳐를 가장 잘 표현(表現)하는 대표적(代表的)인 물성(物性)은 초기(初期)의 관능적(官能約) stiffness와 기계적 puncture work, 중기(中期)의 관능적(官能的) firmness와 기계적(機械的) hardness, 후기(後期)의 관능적(官能的) firmness와 기계적(機械的) hardness, slope 및 관능적(官能的) lift 와 기계적(機械約) springiness이었다. 대표적(代表的)인 기계적(機械的) 물성(物性)으로 소비자(消費者)의 기호성(嗜好性)을 다음과 같이 여측(予測)하였다. 소비자(消費者)의 종합점수(綜合点數) = $7.336-0.369{\time}10^{-5}(Puncture work)+0.075{\time}10^{-5}(Intermediate\;hardness)+0.382{\time}10^{-5}(Final hardness)-0.806{\time}10^{-5}(Slope)-5.168(Springiness)$. 시대적(代表的)인 기계적(機械約) 물성(物性)으로 ideal texture profile을 작도하였다.

• Journal of Yeungnam Medical Science
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• 제37권2호
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• pp.106-111
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• 2020

Background: Fever is a common cause of pediatric consultation in the emergency department. However, identifying the source of infection in many febrile infants is challenging because of insufficient presentation of signs and symptoms. Meningitis is a critical cause of fever in infants, and its diagnosis is confirmed invasively by lumbar puncture. This study aimed to evaluate potential laboratory markers for meningitis in febrile infants. Methods: We retrospectively analyzed infants aged <3 months who visited the emergency department of our hospital between May 2012 and May 2017 because of fever of unknown etiology. Clinical information and laboratory data were evaluated. Receiver operating characteristic (ROC) curves were constructed. Results: In total, 145 febrile infants aged <3 months who underwent lumbar punctures were evaluated retrospectively. The mean C-reactive protein (CRP) level was significantly higher in the meningitis group than in the non-meningitis group, whereas the mean white blood cell count or absolute neutrophil count (ANC) did not significantly differ between groups. The area under the ROC curve (AUC) for CRP was 0.779 (95% confidence interval [CI], 0.701-0.858). The AUC for the leukocyte count was 0.455 (95% CI, 0.360-0.550) and that for ANC was 0.453 (95% CI, 0.359-0.547). The CRP cut-off value of 10 mg/L was optimal for identifying possible meningitis. Conclusion: CRP has an intrinsic predictive value for meningitis in febrile infants aged <3 months. Despite its invasiveness, a lumbar puncture may be recommended to diagnose meningitis in young, febrile infants with a CRP level >10 mg/L.