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도심 수목원에서의 경관감상과 산책이 인체의 생리적 안정에 미치는 영향
박범진 ( Bum Jin Park ),가재남 ( Jae Nam Ka ),이민선 ( Min Sun Lee ),김선아 ( Seon A Kim ),박민우 ( Min Woo Park ),최윤호 ( Yoon Ho Choi ),정다워 ( Da Wou Joung ),권치원 ( Chi Weon Kwon ),염동걸 ( Dong Geol Yeom ),박순주 ( Soon Jo 한국산림과학회 2014 한국산림과학회지 Vol.103 No.4
This research was conducted to investigate the impact of viewing scenery and walking in the urban forest onphysiological relaxation of humans. The experiment was conducted in Hanbat Arboretum located in Daejeon, and thecontrol experiment was conducted in front of Daejeon City Hall. The subjects that participated in the experimentcomprised 24 Korean male university students in their 20s (average age, 21.1±2.5 years), participated in the experimentas the subject, and these subjects were classified into three groups divided into three locations such as the pine forest inArboretum, the pond in Arboretum, and the city. The subjects sat down and viewed scenery for 10 min, and they thenwalked for 15 min. Further, physiological changes were measured using indicators such as heart rate variability (HRV),blood pressure, and pulse rate. As a result, when subjects viewed scenery and walked in the urban forest, a statisticallysignificant increase in the high frequency (HF) power of HRV and decrease in systolic pressure was observed comparedwith when subjects viewed scenery and walked in the city. Through this research, it was found that activities like viewingscenery or walking in Arboretum of the city are effective in increasing the physiological relaxation of the city residents.
Han, Sang-Beom,Kwak, Da-Hee,Park, Hyun Suk,Park, Jin-Young,Ma, Kyeng-Bae,Won, Ji-Eun,Kim, Do-Hyoung,Kim, Min-Cheol,Park, Kyung-Won Elsevier 2018 Journal of Power Sources Vol.393 No.-
<P><B>Abstract</B></P> <P>(2,2,6,6-tetramethylpiperidin-1-yl)oxyl (TEMPO) with no free radical and non-volatile characteristic can be utilized as a liquid catalyst instead of O<SUB>2</SUB> at the cathode in a chemical regenerative redox fuel cell with H<SUB>2</SUB> as a fuel at the anode. In this study, the electrochemical properties and performance of TEMPO dissolved in sulfuric acid solution are investigated using half and unit cells. In the half-cell, TEMPO shows an activation energy of 1.27 kcal mol<SUP>−1</SUP> K<SUP>−1</SUP> for the reduction. A chemical regenerative redox fuel cell (CRRFC) using TEMPO as the liquid catalyst exhibits an open circuit voltage of 0.7 V and a maximum power density of 90 mW cm<SUP>−2</SUP> at 30 °C with a low activation loss. The regeneration cycling test of the CRRFC is performed at a constant voltage of 0.4 V under a flow rate of the oxygen-bubbled TEMPO solution. The performance of the CRRFC deteriorates, i.e., a power density of zero measured at >200 min. Thus, a highly efficient regeneration system needs to be developed for a high-performance CRRFC using TEMPO used as a liquid-type oxidant. Furthermore, stable liquid oxidants with relatively high standard reduction potentials can be proposed through various organic compounds.</P> <P><B>Highlights</B></P> <P> <UL> <LI> CRRFC was proposed using TEMPO instead of O<SUB>2</SUB> at the cathode. </LI> <LI> TEMPO showed fairly fast transport and low activation energy for the reduction. </LI> <LI> CRRFC exhibited an open circuit voltage of ∼0.7 V at 30 °C. </LI> <LI> CRRFC exhibited a maximum power density of ∼90 mW cm<SUP>−2</SUP> at 30 °C. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>
이다한,박찬진,박찬국,이성철,박민경,윤병우 경성대학교 공학기술연구소 2012 공학기술연구지 Vol.18 No.-
NW6005의 칩을 이용하여 발신자 번호 데이터를 추적하는데 성공하였고 그 뿐만 아니라 두 개 이상의 전화에서 발신자 번호 데이터를 수신하더라도 데이터가 깨지지 않고 제대로 수신하는 알고리즘을 구상하였고 그에 대한 실험은 성공적이었으며 또한 전화 통신중의 오류에 대한 문제도 해결하였다. 최종적으로 4개의 전화선에서 하나 또는 동시에 발신자 번호를 추적하여 시리얼 통신으로 데이터를 전송시키는 장비를 개발하였다.
결합조직형성 법랑모세포종의 방사선학적 소견 : 증례보고 3례
최다혜,허경회,문제운,이원진,허민석,이삼선,최순철,박관수 대한구강악안면방사선학회 2006 Imaging Science in Dentistry Vol.37 No.1
Desmoplastic ameloblastoma is a rare histologic variant of ameloblastoma. It shows important differences in anatomic distribution, histologic appearance, and radiographic findings compared with the general type of ameloblastoma. It is histologically characterized by an abundance of densely collagenous stroma and radiographically a mixed radiolucent-radiopaque lesion. We present three cases of desmoplastic ameloblastoma. All the patients complained on buccal swelling with or without pain and the sites of occurrence were the anterior and the premolar region. Plain radiographs showed mixed radiopaque-radiolucent lesion with ill-defined or diffuse sclerotic margin and no external root resorption. Additionally, CT scans revealed buccal expansion and relatively well-defined margin of the lesions. The clinical and radiographic features of the presented cases were compared with those of the desmoplastic ameloblastoma in the previous literatures. (Korean J Oral Maxillofac Radiol 2006; 36 : 63-8)
건조 재료를 사용한 콘크리트의 포장화에 관한 실험적 연구
한다희,박희곤,백민수,김성식,이영도,정상진 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.2
Most concrete is recently made of an aggregate which is properly absorbed, and earned in it in order to do capability at every fields. We have been close to demand new capability of high flowing and enduring for specific concretes. That is difficult to cope with claiming the efficiency on deterioration from lack of a high quality aggregate. Therefore, For solving the problems we apply to a packing method for using dried materials. That is to say it is a kind of making into an instant. In this study, There is a purpose to present fundamental data, comparing and analyzing a phenomenon about aggregate's absorption following the rate of adding water, for using existing materials.
구한나,박인경,박하영,성초아,장다엘,홍은민 이화여자대학교 간호과학대학 2012 이화간호학회지 Vol.- No.46
Purpose: This study was to grasp women’s knowledge about Breast Self-examination. Methods: We collected data from 317 women who lives in certain city, Korea using structured questionnaire from 5th, August to 20th, September. The collected data was analyzed by SPSS 19.0. Results: The average score of women’ Breast Self-examination knowledge was 6.79±3.68 (of 17). There are three categories in knowledge about Breast Self-examination. Average score of category is 2.31 ± 0.71(of 4) for knowledge of breast cancer, 2.11 ± 0.57(of 5) for knowledge of breast cancer symptom, 2.37 ± 0.45(of 8) for knowledge of Breast Self-examination. Knowledge about Breast Self-examination according to general characteristics varied significantly for different age, marital status, education, and history of breast disease. Knowledge about Breast Self-examination according to characteristics related Breast examination was higher for women who received Breast Self-examination education, received Breast Self-examination education by lecture, performed Breast Self-examination, and who received Clinical Breast Examination Conclusion: People who are teenager and over sixties, their knowledge of Breast Self-examination was low. Therefore, effective Breast Self-examination education program should be provided for women who are teenager and over sixties to promote their Breast Self-examination practice regularly.
Park, Min-Jung,Moon, Su-Jin,Baek, Jin-Ah,Lee, Eun-Jung,Jung, Kyung-Ah,Kim, Eun-Kyung,Kim, Da-Som,Lee, Jung-Ho,Kwok, Seung-Ki,Min, Jun-Ki,Kim, Seok Jung,Park, Sung-Hwan,Cho, Mi-La The American Association of Immunologists, Inc. 2019 JOURNAL OF IMMUNOLOGY Vol.203 No.1
<P><B>Key Points</B></P><P><OL><LI>Metformin enhances immunomodulatory properties and migration capacity of MSCs.</LI><LI>Metformin-treated MSCs exert therapeutic property in OA rats.</LI></OL></P><P>Mesenchymal stem cells (MSCs) can protect against cartilage breakdown in osteoarthritis (OA) via their immunomodulatory capacities. However, the optimization strategy for using MSCs remains challenging. This study’s objective was to identify the in vivo effects of metformin-stimulated adipose tissue-derived human MSCs (Ad-hMSCs) in OA. An animal model of OA was established by intra-articular injection of monosodium iodoacetate into rats. OA rats were divided into a control group and two therapy groups (treated with Ad-hMSCs or metformin-stimulated Ad-hMSCs). Limb nociception was assessed by measuring the paw withdrawal latency and threshold. Our data show that metformin increased IL-10 and IDO expression in Ad-hMSCs and decreased high-mobility group box 1 protein, IL-1β, and IL-6 expression. Metformin increased the migration capacity of Ad-hMSCs with upregulation of chemokine expression. In cocultures, metformin-stimulated Ad-hMSCs inhibited the mRNA expression of RUNX2, COL X, VEGF, MMP1, MMP3, and MMP13 in IL-1β–stimulated OA chondrocytes and increased the expression of TIMP1 and TIMP3. The antinociceptive activity and chondroprotective effects were greater in OA rats treated with metformin-stimulated Ad-hMSCs than in those treated with unstimulated Ad-hMSCs. TGF-β expression in subchondral bone of OA joints was attenuated more in OA rats treated with metformin-stimulated Ad-hMSCs. Our findings suggest that metformin offers a promising option for the clinical application of Ad-hMSCs as a cell therapy for OA.</P>
( Da Min Park ),( Jae-han Bae ),( Min Soo Kim ),( Hyeontae Kim ),( Shin Dal Kang ),( Sangmin Shim ),( Deukbuhm Lee ),( Jin-ho Seo ),( Hee Kang ),( Nam Soo Han ) 한국미생물 · 생명공학회 2019 Journal of microbiology and biotechnology Vol.29 No.11
In sourdough fermentation, lactic acid bacteria perform important roles in the production of volatile and antimicrobial compounds, and exerting health-promoting effects. In this study, we report the probiotic properties and baking characteristics of Lactobacillus plantarum SPCSNU 72-2 isolated from kimchi. This strain is safe to use in food fermentation as it does not carry genes for biogenic amine production (i.e., hdc, tdc, and ldc) and shows no β-hemolytic activity against red blood cells. The strain is also stable under simulated human gastrointestinal conditions, showing tolerance to gastric acid and bile salt, and adheres well to colonic epithelial cells. Additionally, this strain prevents pathogen growth and activates mouse peritoneal macrophages by inducing cytokines such as tumor necrosis factor-α, interleukin (IL)-6, and IL-12. Furthermore, the strain possesses good baking properties, providing rich aroma during dough fermentation and contributing to the enhancement of bread texture. Taken together, L. plantarum SPC-SNU 72-2 has the properties of a good starter strain based on the observation that it improves bread flavor and texture while also providing probiotic effects comparable with commercial strains.
The Effect of Dietary Fermented Soybean on the Growth Performance and Meat Quality of Pigs
Park, Jung-Min,Shin, Jin-Ho,Bak, Da-Jeong,Lee, Dan-Won,Jeon, Woo-Min,Song, Jea-Chul,SunWoo, Sun-Young,Lyoo, Young-Soo,Kim, Jin-Man Korean Society for Food Science of Animal Resource 2009 한국축산식품학회지 Vol.29 No.3
This study investigated the effects of fermented soybean (FS) on growth and meat quality in pigs. A total thirty-six pigs were divided into 2 groups (2 treatment$\times$18 pigs each) and fed the experimental diets for 4 wk as follows: control (FS free); and T1 (FS 1%). The pigs in T1 had a higher feed efficiency compared with pigs fed control diets. pH was also significantly higher in the T1 group (p<0.05). Water-holding capacity measured in T1 was slightly higher than that of the control. Cooking loss in T1 was significantly lower than controls (p<0.05). CIE $L^*$ and CIE $b^*$ value were significantly higher in the control (p<0.05), but CIE $a^*$ value of T1 was higher than control (p<0.05). The drip loss of T1 were significantly lower than controls (p<0.05). Sensory characteristics of the treatment group showed higher than controls (p<0.05). These results showed that FS could be served as a favorable feed additive and feedstuff for enhancing pork quality.
Anterior implant placement in the presence of maxillary impacted teeth: Case reports
Da-Min Park,Hyeong-Gi Kim,Young-Kyun Kim 대한치과이식임플란트학회 2021 The Korean Academy of Implant Dentistry Vol.40 No.3
There are sometimes canine or supernumerary teeth impacted at premaxilla area in adult patients. If impacted tooth exists at the implant site, we regularly extract the teeth before implantation. However we wonder if we must extract the impacted tooth for implantation. In this report, We present the cases in which bone grafts were performed after tooth extraction and implants were placed and cases in which implants were placed without extraction. We intend to provide answers to questions along with a literature review.