Synthesis and characterization of nitrogen-doped activated carbon with urea for supercapacitors

강원섭,김웅,박선민,노광철 한국공업화학회 2015 한국공업화학회 연구논문 초록집 Vol.2015 No.0

In this study, we propose a simple approach for the synthesis of nitrogen-doped activated carbon (N-doped AC) via thermal annealing with urea, to improve the cycle stability and rate capability of electric double layer capacitor (EDLC) by minimizing the oxygen functional group of AC. And we compared the effect of urea by concentration. In order to confirm chemical structure and composition of the materials, XPS and Raman analysis were conducted. The pore structures were characterized characterized by N2 adsorption/desorption isotherm at 77 K using the BET equation and BJH method. The electrochemical properties of N-doped ACs were accumulated by cyclic voltammetry, impedance spectra, and charge-discharge cycling performance in non-aqueous electrolyte. As a result, Electrochemical measurements indicated that N-doped AC exhibits enhanced rate capability and cycle performance as compared with pristine AC.

비만의 정신과적 접근

강원섭,김종우 대한비만학회 2010 The Korean journal of obesity Vol.19 No.3

비만은 정신과적 질환과 서로 연관이 있다는 근거들이 많고, 비만과 정신과적 질환이 동반된다는 점은 임상에서 비만의 평가와 치료에서 중요하게 고려해야 할 문제이다. 비만 환자들은 비만으로 인한 신체적, 심리사회적 결과들로 인해 고통 받고 있다. 이들은 편견과 차별에 노출되기 쉽기 때문에 거부에 대한 두려움 및 죄책감 등의 감정에 대한 치료가 필요하다. 비만 환자들에게 이분법적 사고와 파국적 사고와 같은 인지적 왜곡이 흔하다. 비만 치료의 장기적인 효과를 개선하기 위해서는 치료 후 체중이 다시 증가하는 것에 대한 이해가 필요한데, 인지적 요인 및 불분명한 치료 목표의 성립이 주된 원인이다. 따라서 비만 치료에 있어 비만 환자의 인지적 특성 및 심리사회적 특성에 대한 고려를 포함한 정신과적 접근이 필요할 것이다.

친환경 양봉! 21세기의 대안입니다.

강원섭,Gang, Won-Seop 한국양봉협회 2008 양봉협회보 Vol.337 No.-

노인 암 환자의 정신건강 관리

강원섭 한국장기요양학회 2018 한국장기요양학회 추계학술대회자료집 Vol.2018 No.-

등교 거부 행동문제인가 정신병리인가?

강원섭 ( Won Sub Kang ),반건호 ( Geon Ho Bahn ) 경희대학교 경희의료원 2005 慶熙醫學 Vol.21 No.1

한국판 의사 공감척도의 신뢰도와 타당도 검사

강원섭 ( Won Sub Kang ),김용희 ( Yong Hee Kim ),장환일 ( Hwan Il Chang ) 한국정신병리진단분류학회 2006 精神病理學 Vol.15 No.1

Objectives: This study was conducted to evaluate the reliability and validity of the Korean Version of the Jefferson Scale of Empathy-HP-version(K-JSE-HP). Method: The subjects were 86 residents who are working at Kyunghee University Hospital. The reliability and validity of K-JSE-HP and the differences on mean empathy scores by physicians` gender, specialty, career, and personality traits were examined. Results: The 20 items(except 2 items) of the K-JSE-HP(emotional empathy, cognitive empathy) was associated with excellent internal consistency(cronbach`s α=0.88) in reliabilities. The correlation coefficient between sum and the general items of the K-JSE-HP showed appropriate scores. Individual items showed good concurrent validity. Empathy scores were inversely correlated with impulsivity. But it were not associated with gender, specialty and career. Conclusion: K-JSE-HP was confirmed in its reliability and validity. It can be a useful scale for evaluating empathy in physician with various specialty.

일 종합병원 정신건강의학과 외래환자에서 벤조디아제핀 사용

이재영,강원섭,김종우,김영종,Lee, Jai Young,Kang, Won Sub,Kim, Jong Woo,Kim, Young Jong 대한불안의학회 2015 대한불안의학회지 Vol.11 No.2

Objective : This study examined benzodiazepine prescription patterns of outpatients visiting the psychiatry department in a single general hospital in Korea. Methods : A retrospective descriptive analysis of benzodiazepine prescriptions was performed on a database from 2014 in a general hospital in Korea. We analyzed the following factors of adult outpatients: demographic factors such as sex and age, amount of benzodiazepine prescribed, treatment duration, and diagnosis based on the ICD-10. Results : In 2014, benzodiazepines were prescribed to 46.4% of the outpatients. Percentage of benzodiazepine prescription increased with age and was highest in the age group 40-59 years. Prescription was more prevalent in women and the prescription percentage increased by treatment duration. Patients with the F4 diagnosis (neurotic, stress-related and somatoform disorders) were the most highly prescribed group. For all diagnosis groups, prescription was more prevalent in females or similar for both sexes except for patients with F5 diagnosis (behavioral syndromes associated with physiological disturbances and physical factors), with males being more predominant. Conclusion : Despite the concern regarding the rate of benzodiazepine prescription and administration to geriatric patients, long-term prescription and usage among older patients is still prevalent.

2P-Thermal Cycle에 따른 고체고분자연료 전지의 전해질막 손상 영향성

김선희,강원섭 한국공업화학회 2011 한국공업화학회 연구논문 초록집 Vol.2011 No.1

Factors Related to Noncompliance in Screening and Tracking Mild Cognitive Impairment Patients in a Single Community

박찬민,강원섭,김종우,백종우,김영종,전준희,이미애,김재광,송지영 대한신경정신의학회 2017 PSYCHIATRY INVESTIGATION Vol.14 No.2

Objective: We assessed the cumulative conversion rates (CCR) from minor cognitive impairment (MCI) to dementia among individuals who failed to participate in annual screening for dementia. Additionally, we analyzed the reasons for failing to receive follow-up screening in order to develop better strategies for improving follow-up screening rates. Methods: We contacted MCI patients who had not visited the Dongdaemun-gu Center for Dementia for annual screening during the year following their registration. We compared the CCR from MCI to dementia in the following two groups: subjects registered as having MCI in the Dongdaemun-gu Center for Dementia database and subjects who failed to revisit the center, but who participated in a screening test for dementia after being contacted. The latter participants completed a questionnaire asking reasons for not previously visiting for follow-up screening. Results: The final diagnoses of the 188 subjects who revisited the center only after contact were 19.1% normal, 64.9% MCI and 16.0% dementia. The final diagnoses of the 449 subjects in the Dongdaemun-gu Center for Dementia database were 25.6% normal, 46.1% MCI and 28.3% dementia. The CCR of the revisit-after-contact group was much lower than anticipated. The leading cause for noncompliance was “no need for tests” at 28.2%, followed by “other reasons” at 23.9%, and “I forgot the appointment date” at 19.7%. Conclusion: Considering the low dementia detection rate of the group who revisited only after contact and the reasons they gave for noncompliance, there appears to be a need for ongoing outreach and education regarding the course and prognosis of MCI.

일 대학병원에서 5개년간 섬망의 발생 및 치료 경향의 변화

배재호,강원섭,백종우,김종우,Bae, Jae Ho,Kang, Won Sub,Paik, Jong Woo,Kim, Jong Woo 한국정신신체의학회 2012 정신신체의학 Vol.20 No.2

연구목적 : 섬망은 의식 수준과 인지기능 변화로 인해 사고, 언어, 행동, 수면 양상 등에 갑작스러운 지장을 초래하는 장애로 정의된다. 본 연구의 목적은 최근 5개년간 일 대학병원의 정신과로 자문 의뢰된 섬망 환자들의 특성과 치료 방법을 분석하여 향후 섬망 연구에 있어 기초 자료를 제공하고 섬망의 발생과 치료에 변화가 있었는지 알아보고자 하는 것이다. 방 법 : 2007년 1월부터 2011년 12월까지 서울 회기동 소재의 경희대학교 병원에서 정신과로 자문 의뢰된 환자를 대상으로 섬망으로 진단된 475명의 환자의 의무기록을 후향적으로 검토하여 환자의 성별, 연령, 의뢰과, 의뢰 이유, 섬망의 원인, 섬망의 분류, 의뢰의의 오진율, 치료 방법, 처방 약물 종류 등을 조사 및 분석하였다. 결 과 : 5년간 섬망으로 진단된 475명의 환자 중 남성이 61.7%로 여성보다 더 많았다. 섬망 환자를 정신과로 의뢰하게 된 이유는 수면 장애가 80.8%로 가장 많았고 섬망이 발생한 원인으로는 수술 후 섬망이 30.9%로 가장 많았다. 전체 치료 건수 중 약물 처방이 76.6%이었으며 연도에 따라 유의하게 증가하는 양상을 보였다. 약물 처방 건수 중 항정신병 약물의 사용 빈도는 76.4%였으며 항정신병 약물중 Quetiapine의 사용 비율이 46.8%으로 가장 높았다. 그리고 타과 의뢰의가 섬망의 진단을 놓치게 된 이유는 환자가 이전에 치매를 진단받았을 경우가 6.8%로 가장 많았다. 결 론 : 근 5개년간 일 종합병원에서 정신과로 의뢰되는 섬망은 수술 후 발생하는 경우가 가장 많았고 약물 처방율이 높아지는 추세였다. 환자에게 이전 치매 병력이 있을 경우 섬망이 아닌 다른 질환으로 오진되기 쉬웠다. 본 연구를 통해 섬망의 임상 증상 및 원인, 의뢰 이유, 치료 경향에 대해 평가하고, 수면 주기의 변화에 대한 주의를 기울이며, 수술 후 섬망에 대한 예방전략 수립 및 약물 치료에 따른 치료 근거를 확립하는데 의의를 둘 수 있을 것이다. Objectives : Delirium is a disorder defined as a sudden disturbance in thinking, speaking, acting and sleep pattern due to altered level of consciousness and cognitive function. The objective of this study is to analyze characteristics and therapeutic methods of the delirious patients during the recent 5 years, and provide basic data for further studies and investigation regarding delirium in the occurrence and treatment. Methods : We retrospectively reviewed medical records of 475 patients who were consulted for delirium in Kyunghee University Medical Center from January 2007 to December 2011. Results : During the 5 years, among the 475 patients who were diagnosed as delirium, men were more common(61.7%). The most commonly consulted reason and cause were sleep disturbance(80.8%) and post-operational delirium(30.9%), respectively. The medication prescription percentage was 76.6% and was significantly increased year after year. Ratio of using antipsychotics were 76.4% among prescribed medication and the most frequently prescribed antipsychotic drug was quetiapine(46.8%). Other specialists commonly misdiagnosed delirium when the patient was previously diagnosed as dementia(6.8%). Conclusions : In our study, post-operational delirium was the most commonly referred reason and the percentage of medication prescription tended to increase. Patients with history of dementia were more easily misdiagnosed as diseases other than delirium. Our study suggests that we should evaluate symptoms, causes, reasons of consultation, management tendency of delirium. We should also closely observe changes in sleep patterns and establish the prevention strategies for post-operational delirium and therapeutic bases for pharmacotherapy.