데이터베이스와 XML에 기반한 건설프로젝트 기술문서 전자화

정종현 한국건설관리학회 2005 한국건설관리학회 논문집 Vol.6 No.4

This study describes the digitalization of technical documents of construction projects using database for storage and XML for exchange format on the web. First, for this purpose, the requirements for effective digitalization are identified. Second, the strategies for using database and XML are presented. These strategies include the way to store and search for the technical documents, to draw up the XML document for some parts of the technical documents, to arrange the components in their proper hierarchy, to manage the graphics and mathematical expressions in database and XML documents. Finally we discussed the validities of the results of this study by partial implementation for structural design sheets which has all the characteristics of technical documents.

탄소섬유를 이용한 철근콘크리트 보 단부 휨보강에 대한 실험적 연구

정종현,이재광 대한건축학회 2006 大韓建築學會論文集 : 構造系 Vol.22 No.9

Carbon fiber sheets(CFS) are frequently used to strengthen the flexural capacity of RC beams. However, at the end region of RC beams, CFS cannot be used. This is because the required bond length cannot be provided at the column face, which results in the lack of bond strength between RC beam and CFS. Therefore, in this experimental study, we examined some methods that are expected to provide bond strength between RC beam and CFS. Then we performed the reduced-scale structural tests and made an investigation into the flexural capacity of RC beam focused on bond strength.

정신분열병에서 신경호르몬 조절이상

정종현,홍승철,박원명 대한정신약물학회 2006 대한정신약물학회지 Vol.17 No.5

Endocrinological studies of mental disorder are based on the fact that the neuroendocrinological system is under central nervous system control, thus linking peripheral hormonal secretion and brain activity. Neuroendocrine basis for the onset of schizophrenia which often occurs in adolescence and the gender differences in the clinical expression of illness have been explored. However, the studies of neuroendocrine alterations in schizophrenic patients are rarer and more inconsistent than affective disorder. Although the nature of neuroendocrinological dysfunction is less well characterized in schizophrenia than in mood disorder and anxiety disorder, a number of neuroendocrine abnormalities have been described. In schizophrenic patients, hypercortisolemia has been described especially during acute exacerbation, and persistent hypercortisolemia has been associated with ventricular enlargement and poor prognosis. Also, abnormality in HPA axis, HPG axis, HPT axis, prolactin, growth hormone and other neurohormonal profile has been described in schizophrenia. Although the precise neuroendocrinological alterations of schizophrenia is incompletely understood, the explored neurohormonal changes are helpful in the confirmation of recurrence, the selection of effective therapeutic agents, developing new therapeutic modalities, and prediction of treatment response and prognosis. This article reviews several neurohormonal researches on schizophrenia. For the further development of psychoneurohormonal researches in schizophrenic illness, more extensive studies in many aspects are needed.

주형온도가 CP Ti의 주조성에 미치는 영향

정종현,주규지,고은경 대한치과기공학회 2006 대한치과기공학회지 Vol.28 No.1

The purpose of this study was to evaluate the titanium castability with a spin typecasting machine(TiCast, Super R, Selec, Osaka. Japan). We tested phosphate bondedinvestment “Rematitan�Plus(Dentaurum, Inc., Pforzheim, Germany)”of mesh grid patternand plate pattern. Four different mold temperatures(room temperature, 200℃, 400℃and600℃) were prepared for the present study. In mesh grid pattern with spruing of φ0.88㎜dimeter, when the mold temperature increased, high percentage of castability was gained.Mold temperature showed a highly significant(p<0.05) correlation on the castability, Inplate pattern, the higher the mold temperature during casting, the greater the adhesivephenomenon between Ti surface and the investment.

폐 좌상 환자에서의 기계 환기 관련 폐렴에 대한 고찰

정종현,현성열,김진주,김재혁,임용수,조진성,황성연,양혁준 대한중환자의학회 2010 Acute and Critical Care Vol.25 No.4

Background: This study was conducted to determine the incidence, risk factors, and outcome of ventilator-associated pneumonia in patients with pulmonary contusion. Methods: The study was conducted at an urban teaching hospital emergency department with an annual volume of 80,000 patient visits. A retrospective analysis was conducted on thoracic injury patients admitted between Jan 2007 and Dec 2009. Among 122 patients investigated, 30 patients were excluded. Patient data included basal characteristics and information related to development of ventilator-associated pneumonia and ultimate mortality. Statistical methods included the Chi-square test and the Mann-Whitney test. Study data were stored and processed using Microsoft Office Excel 2007 & SPSS 18.0 for Windows. Results: Ventilator-associated pneumonia developed in 46 patients (50%). The patients with ventilator-associated pneumonia were more likely to have a longer duration of hospitalization, longer length of ICU stay, longer duration of mechanical ventilation, a low initial GCS, a higher APACHE II score, and were more likely to require emergency intubation or tracheostomy. Factors associated with mortality included longer duration of hospitalization, longer duration of mechanical ventilation, low intial GCS and the need for dialysis. Conclusions: Ventilator-associated pneumonia in the patients with pulmonary contusion was not relevant to mortality,but was relevant to longer hospitalization, length of ICU stay and duration of mechanical ventilation.

FEA를 PIV를 이용한 Butterfly Valve의 유동특성에 대한 연구

정종현,이동화,배인환,박영철 동아대학교 생산기술연구소 2002 生産技術硏究所硏究論文集 Vol.7 No.2

A particle image velocity experiment of butterfly valve flows and numerical simulation of them are a useful technique to investigate the physical phenomena of the flow field. A numerical analysis was carried out on incompressible fluid flows in a butterfly valve by using ANSYS-FLOTRAN. Characteristics of the butterfly flows at different valve disk opening angles with a uniform incoming velocity were investigated. Comparisons of ANSYS-FLOTRAN results with other results, i.e., experimental results, were made to determine the accuracy of the employed method. Results of the analysis may be useful in the valve design.

치과주조용 Ti-20%Zr-X%Cr(0≤X≥) 합금의 양극분극특성

정종현 광주보건대학 2004 論文集 Vol.29 No.-

Ti-20%Zr-X%Cr(0≤X≥10) alloys not containing harmful Al and V were newly designed in order to reveal their possibility for dental casting and melted in an arc melting and casting furnace under Ar atmosphere. The corrosion resistance was studied by anodic polarization test. From the observation of anodic polarization behavior, it was found that the corrosion resistance was markedly increased by the addition of Cr. The corrosion resistance of Ti-20%Zr-5%Cr alloy was superior to that in Ti-6%Al-4%V alloy but almost similar to that in cp Ti using in market place today.

'동아시아' 담론의 문제와 가능성 : 30년대 '동양' 담론과의 비교를 중심으로 on the comparison of 'toyo(東洋)' Discourse in 1930s

정종현 동국대학교 대학원 2002 大學院硏究論集-東國大學校 大學院 Vol.32 No.-

The Eastern Asia Discourse has appeared since 1990, is the attempt for groping the new cultural and civilized model in the progress of particular characteristic in this region for a period of reorganization in the world's history order. That discourse has various layers from Confucian capitalism that explains the economic developments of this region for the traditional Confucian culture in the global capitalistic system to context of postcolonialism that refuses Western universalism and the discourse that try to find the new alternative groping of progressive movement after dissolution of the Soviet Union through Eastern Asian tradition after modern capitalism. That discourse of various layers have a common point that Western modernism of Western equal to Universality and Orient equal to Particularity is the scheme of cognition that refuses the representative system that Western modernism has forced and non-Western has been immanent. In fact, that refusal for the representative system is not new. That is in collusion with Japanese Orientalism in 1930. Oreintal history in Japan that have denied Western universal system, Japanese Chogeuk(초극, subjugation) discourse that have negated modernity of Western capitalism, philosophical system of 'nation' subjectivity etc. are all transformed the ideology of Japanese fascism, but the cognitive system of them have possessed the refusal for Western universalism and fundamental desire of overthrown toward the representative system exposed themselves through a new universalism. The great subject of 'the

양극성 우울증 정신약물치료의 현재와 미래

정종현,우영섭,박원명 대한정신약물학회 2008 대한정신약물학회지 Vol.19 No.3

This article reviews the characteristics and major pharmacological treatment modalities of bipolar depression, which is distinguished from unipolar depression by etiologic differences, symptomatic features, clinical courses, and treatment responses. Bipolar depression is often disabling and very challenging to treat. In acute and prophylactic phases, mood stabilizers such as lithium, divalproex, and lamotrigine are used as first-line treatment, unless the patient is psychotic or markedly dysfunctional. Carbamazepine and oxcarbazepine can be used as a second-line treatment or in a combination regimen. Depressive episodes that do not respond to mood stabilizers, as well as relapsing episodes despite prophylactic therapy, justify treatment with antidepressants. Many clinicians also advocate the early use of antidepressants and antipsychotics when depressive episodes are severe or psychotic. Selective serotonin reuptake inhibitors and bupropion are considered the first choices for use in combination with a mood stabilizer. Bupropion in particular yields stability against manic switches or cycle acceleration. Traditionally, clinicians have used antipsychotics as a combination option when treating patients with bipolar depression who exhibit psychotic features. However, extensive and well controlled recent studies have shown that atypical antipsychotics such as quetiapine, olanzapine, and an olanzapine/fluoxetine combination can yield therapeutic efficacy and good tolerability for treating bipolar depression with or without psychotic features. In particular, a randomized controlled trial (RCT) using quetiapine monotherapy to treat patients with bipolar depression yielded significantly reduced depressive symptomatology. Other atypical antipsychotics such as amisulpride, aripirazole, risperidone, and ziprasidone have yielded antidepressive efficacy, but no RCT trials have been conducted on patients with bipolar depression. Some preliminary studies have shown that newly developed agents such as dopamine agonist, agomelatine, riluzole, mefepristone, and uridine effectively improve mood symptoms among patients with bipolar depression. More extensive clinical trials are needed. (Korean J Psychopharmacol 2008;19(3):125-135) This article reviews the characteristics and major pharmacological treatment modalities of bipolar depression, which is distinguished from unipolar depression by etiologic differences, symptomatic features, clinical courses, and treatment responses. Bipolar depression is often disabling and very challenging to treat. In acute and prophylactic phases, mood stabilizers such as lithium, divalproex, and lamotrigine are used as first-line treatment, unless the patient is psychotic or markedly dysfunctional. Carbamazepine and oxcarbazepine can be used as a second-line treatment or in a combination regimen. Depressive episodes that do not respond to mood stabilizers, as well as relapsing episodes despite prophylactic therapy, justify treatment with antidepressants. Many clinicians also advocate the early use of antidepressants and antipsychotics when depressive episodes are severe or psychotic. Selective serotonin reuptake inhibitors and bupropion are considered the first choices for use in combination with a mood stabilizer. Bupropion in particular yields stability against manic switches or cycle acceleration. Traditionally, clinicians have used antipsychotics as a combination option when treating patients with bipolar depression who exhibit psychotic features. However, extensive and well controlled recent studies have shown that atypical antipsychotics such as quetiapine, olanzapine, and an olanzapine/fluoxetine combination can yield therapeutic efficacy and good tolerability for treating bipolar depression with or without psychotic features. In particular, a randomized controlled trial (RCT) using quetiapine monotherapy to treat patients with bipolar depression yielded significantly reduced depressive symptomatology. Other atypical antipsychotics such as amisulpride, aripirazole, risperidone, and ziprasidone have yielded antidepressive efficacy, but no RCT trials have been conducted on patients with bipolar depression. Some preliminary studies have shown that newly developed agents such as dopamine agonist, agomelatine, riluzole, mefepristone, and uridine effectively improve mood symptoms among patients with bipolar depression. More extensive clinical trials are needed. (Korean J Psychopharmacol 2008;19(3):125-135)

한국형 우울장애 약물치료 알고리듬 2025 (VI): 비약물학적 생물치료

정종현,서정석,박원명,김낙영,최원석,우영섭,박성용,김원,이정구,양찬모,성형모,왕성민,정영은,심세훈,민경준,전덕인,윤보현,김문두,이상열 대한신경정신의학회 2025 신경정신의학 Vol.64 No.3

Objectives The Korean Medication Algorithm Project for Depressive Disorder (KMAP-DD) 2025 was under taken to provide updates of KMAP-DD 2021. This study focused on non-pharmacological biological treatments. Methods A total of 136 psychiatrists with vast clinical experience and academic publications in the non-pharmacological biological treatment of depressive disorder were primarily selected, and then the survey questionnaire was sent to them via mail, and 97 responses were received. Results Electroconvulsive therapy (ECT) was recommended as a first-line treatment strategy for major depressive disorders, severe with/without psychotic features with urgent suicidal risk, severe episodes with psychotic features in pregnant patients, and non-responders to pharmacotherapy with moderate episodes, as a second-line strategy for non-responders on antidepressant monotherapy or combination therapy, and combined with physical illness in severe episodes. For pregnant women with severe episodes of major depressive disorders, repetitive transcranial magnetic stimulation (rTMS) was preferred as a first-line strategy. However, in all other situations investigated (non-responders on combination therapy of antipsychotics and antidepressants, with comorbid physical illness, and initial treatment for antidepressant naive patients) were second-lines. Complementary or novel treatment was not recommended as the first or second-line treatment strategy for depressive disorder. Conclusion ECT and rTMS were the first-line strategies in specific clinical situations. The preference for ECT and rTMS gradually increased when compared with the previous algorithms. Complementary or novel treatments such as transcranial direct current stimulation, light therapy, nutritional therapy, vagus nerve stimulation, and deep brain stimulation were the third-line strategies, and their practical use seems to be still limited.