양극산화법에 의한 TiO₂ 나노튜브 어레이의 제조와 성장거동

김선민,김기원,류광선,김유영,조권구,Kim, Seon-Min,Kim, Ki-Won,Ryu, Kwang-Sun,Kim, Yoo-Young,Cho, Kwon-Koo 한국분말야금학회 2011 한국분말재료학회지 (KPMI) Vol.18 No.1

Recently, $TiO_2$ nanotubes have considerably researched because of their novel application about photocatalysis, dye-sensitized solar cells (DSSCs), lithium ion battery, etc. In this work, self-standing $TiO_2$ nanotube arrays were fabricated by anodic oxidation method using pure Ti foil as a working electrode in ethylene glycole with 0.3M $NH_4F$ + $2%H_2O$. Growth behavior of $TiO_2$ nanotube arrays was compared according to temperature, voltage and time. The morphology, structure and crystalline of anodized $TiO_2$ nanotube arrays were observed by FE-SEM (field emission scanning electron microscope) and XRD (X-ray diffraction).

양극산화법에 의한 TiO₂ 나노튜브 어레이의 제조 및 광전기화학적 특성에 관한 연구

김선민,조권구,최영진,김기원,류광선,Kim, Seon-Min,Cho, Kwon-Koo,Choe, Yeong-Jin,Kim, Ki-Won,Ryu, Kwang-Sun 한국분말야금학회 2010 한국분말재료학회지 (KPMI) Vol.17 No.3

Self-standing $TiO_2$ nanotube arrays were fabricated by potentiostatic anodic oxidation method using pure Ti foil as a working electrode and ethylene glycol solution as electrolytes with small addition of $NH_4F$ and $H_2O$. The influences of anodization temperature and time on the morphology and formation of $TiO_2$ nanotube arrays were investigated. The fabricated $TiO_2$ nanotube arrays were applied as a photoelectrode to dye-sensitized solar cells. Regardless of anodizing temperature and time, the average diameter and wall thickness of $TiO_2$ nanotube show a similar value, whereas the thickness show a different trend with reaction temperature. The thickness of $TiO_2$ nanotube arrays anodized at $20^{\circ}C$ and $30^{\circ}C$ was time-dependent, but on the other hand its at $10^{\circ}C$ are independent of anodization time. The conversion efficiency is low, which is due to a morphology breaking of the $TiO_2$ nanotube arrays in manufacturing process of photoelectrode.

완충녹지 활용의 적정성 평가 -대전시 서구 완충녹지를 대상으로

김선민,이시영,Kim, Sun Min,Lee, Shi Young 한국토지주택공사 토지주택연구원 2019 LHI journal of land, housing, and urban affairs Vol.10 No.4

This study was started to study the buffer zone of Daejeon metropolitan city in order to study the policy and environment for the suitability evaluation of the use of green buffer zone. The target of the study was selected as the buffer zone of western buffer, which is frequently used in the Daejeon Metropolitan City, and a preliminary index was selected to evaluate the suitability of the green buffer zone. AHP analysis was conducted to increase the reliability of the preliminary indicators and the weight was analyzed by questionnaires to experts and practitioners. In addition, based on the existing statistical data, we rebuilt the green buffer zone and investigated the current condition, and compared and analyzed the green buffer zone and the places where they did not. The results are as follow. First, unlike the statute interpretation that construction can not be done in buffered green spaces, green buffer zones have been utilized in various ways. However, the lack of advanced citizen consciousness of the residents, the responsibility of the responsible person, and the problem of the management office alone are causing problems. Second, according to the results of AHP questionnaire analysis, functional and stability among the appropriateness indexes of green buffer zone utilization were evaluated highly. Park accessibility and utilization potential also weighed somewhat, and it was judged that the epochal trend was more important in the use of green buffer zones. Third, analysis of the status of Western green buffer zones in Daejeon showed that the utilization rate was more than half. This suggests the necessity of judging the appropriateness of the application of the green buffer zone effectively due to the change of the perception of the green buffer zone of the residents. Fourth, as a result of comparing and analyzing the site where the site is used and the site where it is not, it is found that it is used within a range that does not greatly affect each index. However, as the stability has decreased, we have decided that the utilization method is most damaging to the green zone, and we should strive to improve the stability in future. Finally, the analysis of a red clay road and a red clay road sites decreased from Class I of stability to Grade II. However, the fall figure showed a difference between the 13 % drop rate of the target location and the 5% decline rate of utilization. The difference was analyzed as the difference of width of a red clay road. This can be regarded as one of the ways of damaging the green zone to the minimum extent, which is a great advantage in selecting the future utilization plan.

체감의이인탕(體感薏苡仁湯) 복용(服用)과 전침시술(電鍼施術)이 체지방(體脂肪) 감소(減少)에 미치는 효과(效果) (한방치료((韓方治療)의 부분비만(部分肥滿) 개선(改善) 효과(效果))

김선민,김길수,Kim, Sun-Min,Kim, Kil-Soo 한방비만학회 2002 한방비만학회지 Vol.2 No.1

Background & Methods: In order to study the effect of electro-lipolysis-acupuncture, 57 outpatients who have had herbal medication in Kirin Oriental Hospital were devided to two groups; acupuncture-treated group(46) vs non-acupuncture-treated group(11) Acupuncture-treated group was given electro-lipolysis-acupuncture at least two times a week and administered with herbal diet medication, whereas non-acupuncture-treated group was administered only with herbal diet medication. Results: Mean age, body weight and BMI of these two group at the start point of the treatment were $27.22({\pm}7.64)\;vs \;29.09({\pm}8.73),\;67.76({\pm}9.34)\;vs\;67.00({\pm}10.69),\;and\;26.20({\pm}3.02)\;vs\;26.14({\pm}4.10)$ in the order of acupuncture-treated and non-acupuncture groups. After one month of treatment, change rate of body weight, BMI, total fat, percentage of fat was significantly higher in acupuncture-treated group. Also the change rate of arm circumference, hip circumference and thigh circumference was significantly higher in acupuncture-treated group. The change rate of abdominal circumference and WHR of acupuncture-treated group was higher than that of non-acupuncture-treated group with no statistical significance. The circumference reduction rate according to herbal dieting program was higher in this order, abdomen, arms, chest, thighs and hips. On the other hand, chest circumference change rate over weight loss rate, which is the portion no acupuncture treatment was given to, and AMC change rate was higher in non-acupuncture-treated group. Conclusion: These results imply that herbal dieting program combined with electro-lipolysis-acupuncture is more effective on reducing body fat, size reduction of localized obesity and preservation of muscle than herbal prescription only dieting program.

『동의수세보원사상초본권(東醫壽世保元四象草本卷)』에서의 양생(養生)에 관(關)한 고찰(考察)

김선민,송일병,Kim, Sun-min,Song, Il-byung 사상체질의학회 2000 사상체질의학회지 Vol.12 No.1

1. 연구목적 "동의수세보원사상초본권"의 내용 중에서 무병장수(無病長壽)를 하기 위한 양생(養生)은 어떠한 방법들이 있는가 조사해 보았다. 2. 방법 "동의수세보원사상초본권"에 기재된 글 중에서 예방적 사고방식 및 올바른 생활습관에 관하여 서술된 내용을 고찰하였다. 3. 결과 (1) 섭생(攝生)과 정신적 안정이 약(藥)보다 중요하니 조양(調養)하여 본상지기(本常之氣)를 50%이상(以上) 올려놓아 자발적으로 나아지려고 하는 항병력(抗病力)을 도와주면 병(病)을 관리하는 정신으로 편소지장(偏小之臟)의 취약점을 극복할 수 있으니 약(藥)의 중용(中庸)이 필요하다. 2) 주색(酒色)과 사노교착(思盧膠着)이 병(病)의 원인이 되므로 주색재권(酒色財權)의 중용(中庸), 성정(性情)의 중용(中庸), 인사(人事)의 능(能) 부능(不能)의 중용(中庸)을 통한 사상인(四象人)의 건강유지 방법과 치료정신을 제시하였다. 3) 자폭자엽(自暴自葉)하지 않고 주어진 여건에서 최선을 다하려는 긍정적인 자세와 희노애락(喜怒哀樂)을 중(中)과 절(節)에 맞춰서 크게 어긋나지 않게 노력하고 안빈락도(安貧樂道)하고 극기(克己)하는 생활속에서 복(壽)과 수(壽)를 누릴 수 있다. 4) 일반론적(一般論的) 지행(知行)으로서의 명지성행(明知誠行)보다 체질론적(體質論的) 지행(知行)으로서의 선사경행(善思敬行)으로 이기해물(利己害物)되지 않게 호심술(好心術)을 발휘하여 살아가는 것이 득수(得數)의 요인이 된다. Purpose This study is carried out to investigate the way of preservation of health. Method I studied the archives of the preventive way of thinking and upright habit of life expressed in the Dongyi Suse Bowon Sasang Chobonguen Result & Conclusion 1. For taking car of one's health and keeping quiet of emotion is more important than drug, we have to be cautious in extravagant use of drug. 2. For the preservation of health, it is recommended to observe moderation in liquor, sex, property, authority and discretion. 3. It is necessary for a man to do his best and to control emotion. 4. It had better engage in philanthropy than egoism.

염담수(鹽膽水)(간수)의 이뇨(利尿) 항부종(抗浮腫) 및 해열효과(解熱效果)에 관(關)한 실험적(實驗的) 연구(硏究)

김선민,Kim, Sun Min 사상체질의학회 1992 사상체질의학회지 Vol.4 No.1

To observe the diuretic action in mice, the anti-inflammatory action by carrageenin method and the anti-pyretic action by yeast method in rats, the Bittern was administered. Diuretic effort of Bittern was studied by measuring the urine flow, sodium, potassium in urinary excretion. The results in this work were summarized as follows: 1. The Bittern showed significant diuretic action. 2. The Bittern showed significant anti-inflammatory effect. 3. The Bittern showed significant anti-pyretic effect. According to the above results, the Bittern seems to be applicable to the treatment of edema.

백서 주령에 따른 carboxyhemoglobin의 해리양상에 관한 실험적 연구

김선민,김헌,조수헌,Kim, Sun-Min,Kim, Heon,Cho, Soo-Hun 대한예방의학회 1991 예방의학회지 Vol.24 No.4

One, two, six and ten week old Sprague-Dawley rats were exposed to carbon monoxide at 3,700 ppm for 30 minutes, and carboxyhemoglobin was measured immediateley. 5, 30, 60, 90, 120 minutes after the exposure. In each time after the exposure, the means of the carboxyhemoglobin levels were compared among the week age groups. The regression analysis was done using the natural logarithm of the carboxyhemoglobin concentration as a dependent variable and the time after the exposure as an independent vaiable. From the regression equation, the half lives of the carboxyhemoglobin were calculated. The one week old rats showed significantly higher carboxyhemoglobin level than other week age rats in the entire time after the exposure. The corrected carboxyhemoglobin concentration calculated by subtracting the normal carboxyhemoglobin level from the measured carboxyhemoglobin at each age group, showed no uniform differences. 백서 주령이 일산화탄소(CO) 폭로후 carboxyhemoglobin (HbCO) 형성 및 해리에 미치는 영향을 관찰하기 위하여 주령 1주, 2주, 6주 및 10주의 Sprague-Dawley계 백서에 일산화탄소를 폭로시킨 후 HbCO를 측정하여 다음과 같은 결론을 얻었다. 1. CO에 급성으로 폭로된 후 형성되는 HbCO의 농도는 백서 주령에 따라 유의한 차이를 보였으며, 이는 1주군에서 현저히 높았고, 폭로후 120분이 경과되어도 다른 주령군에 비하여 유의하게 높았다. 2. CO에 폭로되지 않은 백서에서의 HbCO농도는 각 주령군마다 유의한 차이를 보였으며, 비폭로군에서 얻어진 주령별 평균 HbCO농도를 CO폭로후 얻어진 개개의 관측치에서 뺀 후 이를 비교한 결과 1.에서와 같은 차이를 보이지 않았다. 3. CO폭로후 경과시간과 HbCO 농도와의 관계를 알아보는 회귀분석에서 폭로후 경과시간은 HbCO농도에 유의한 영향을 미치며, HbCO가 해리되는 속도는 주령 1주군에서 유의하게 높았다.

브로거 운동을 병행한 산전운동프로그램이 임산부의 허리 통증 및 균형에 미치는 영향 단일 사례 연구

김선민,장상훈,Kim, Sun Min,Jang, Sang Hun 대한물리치료과학회 2021 대한물리치료과학회지 Vol.28 No.1

Background: The purpose of this study was to effect of prenatal exercise program combined with Brugger's exercise on low back pain and balance in pregnant women. Design: A Single-Subject Study. Methods: This study was applied to 28 weeks of pregnant women who complained of low back pain for a total of 4 weeks. A total of 10 prenatal exercise programs in this study consists of sessions, and each session was applied with a Bruger exercise for 1 minute before the start. For the fatigue and safety of pregnant women, a break for 1 minute was provided for each session and was conducted under the supervision of the therapist The visual analogue scale (VAS), Oswestry disability index (ODI), and static balance (BT-4) were measured to evaluate the pregnant women's low back pain and balance ability before and after the intervention Results: The change in back pain after the intervention was VAS 5 before the intervention, but the VAS gradually decreased at 4 weeks after the intervention. Reduced to VAS 2 after 4 weeks of intervention. The Oswestry Disability Index (ODI) was 54%, which was at the level of severe disability, but the dysfunction index gradually decreased 4 weeks after intervention, reaching 19% in 4 weeks, and there were no problems with daily life. As for the static balance ability, the sway area and the sway distance values gradually decreased after the intervention in both the eyes open and closed state, showing an improvement in the static balance ability of pregnant women after the intervention than before the intervention. Conclusion: The prenatal exercise program combined with Brugger's exercise was effective to improve low back pain and static balance in pregnant women. The result of this study may helpful as basic data for obstetric physical therapy.

악관절 환자에서 Bite block을 이용한 역동적 자기공명 영상의 유용성

김선민,이평재,권영호,Kim Sun Min,Lee Pyeong Jae,Kwon Young Ho 대한방사선사협회 2004 대한방사선사협회지 Vol.30 No.1

Purpose : When wish to confirm form of purpose temporomandibularl joint negative plate and degree of displacement, application of own fairness reflex can supply much diagnostic data. Market wished to search usefulness of own fairness roller retroaction en

창출(蒼朮) 에탄올 추출물이 비만세포 매개 염증반응에 미치는 영향

김선민,김경준,Kim, Sun-Min,Kim, Kyung-Jun 대한한방안이비인후피부과학회 2011 한방안이비인후피부과학회지 Vol.24 No.1

Objective : Atractyloides Chinensis Rhizome (ACR) is widely used in oriental medicine as a remedy for an inflammation and an allergic disease. However, as yet there is no clear explanation of how ACR affects the production of inflammatory cytokine. This study was to determine the effects of ACR on the mast cell-mediated inflammatory responses. Method : The amount of inflammatory cytokine production induced by the phorbol myristate acetate (PMA) plus calcium ionophore(A23187) in the human mast cell line (HMC-1) incubated with various concentrations of ACR was measured. The TNF-${\alpha}$ protein levels were analysised by Western blots. The TNF-${\alpha}$, IL-6 and IL-8 secreted protein levels were measured by the ELISA assay. The TNF-${\alpha}$, IL-6 and IL-8 mRNA levels were measured by the RT-PCR analysis. NF-${\kappa}$B, phospho-I${\kappa}$B and MAPKs were examined by Western blot analysis. The NF-${\kappa}$B promoter activity was examined by a luciferase assay. Results : 1. The expressions of TNF-${\alpha}$ and TNF-${\alpha}$ mRNA were decreased dose-dependently at 0.05-0.2mg/$m\ell$ of ACR and significantly decreased at 0.2mg/$m\ell$. 2. The expressions of IL-6 and IL-6 mRNA were decreased dose-dependently at 0.05-0.2mg/$m\ell$ of ACR and significantly decreased at 0.2mg/$m\ell$. 3. The expressions of IL-8 and IL-8 mRNA were decreased dose-dependently at 0.05-0.2mg/$m\ell$ of ACR and significantly decreased at 0.2mg/$m\ell$ specially. 4. The expressions of Phosphorylated-JNK were decreased, not p38, ERK 5. The expressions of NF-${\kappa}$B were decreased dose-dependently at 0.1-0.2mg/$m\ell$ of ACR. The expressions of Phosphorylated I${\kappa}$B were significantly decreased at 0.2mg/$m\ell$. In addition, ACR suppressed PMA plus A23187-induced NF-${\kappa}$B promoting activity. Conclusion : It is suggested that ACR should suppress through inhibition of NF-${\kappa}$B activity and cytokine production.