소형 관류식 증기 보일러

박동호,Park, Dong-Ho 한국설비기술협회 1989 설비 : 공조ㆍ냉동ㆍ위생 Vol.6 No.12

알칼리 금속 이온이 교환된 ZSM-23 제올라이트 내에서 톨루엔 메틸화반응의 형상선택성

박동호,김태석,이기웅,최상준,Park, Dong Ho,Kim, Tae Seok,Lee, Gi Ung,Choe, Sang Jun 대한화학회 1994 대한화학회지 Vol.38 No.9

숙성과 겔 성분이 MCM-41의 결정성에 미치는 효과에 대한 XRD 연구

박동호,박성수,Park, Dong-Ho,Park, Sung-Soo 대한화학회 2000 대한화학회지 Vol.44 No.1

The reaction gel mixtures of molar composition (0.3${\sim}$2.1) $SiO_2:\;(0.10{\sim}0.50)\;CTABr:\;0.15{\sim}0.23)\;TMAOH:\;(20{\sim}100)\;H_2O$ we prepared and then aged at room temperature for a definite duration. The aged gel is reacted hydrothermally at $150^{\circ}C$ for 2 days. The pH of reaction gel during synthesis is strongly influenced by the concentration of TMAOH and silica source. The pH change affects the phase of product, which is monitored by X-ray diffractometer. With increasing the TMAOH ratio from 0.19 to 0.23, the gel becomes more basic, and the product involves more lamellar phase. At TMAOH ratio lower than 0.19, the hexagonal phase is lower with decrease of pH. The content of the lamellar phase increases at a lower $SiO_2$ concentration, and higher concentrations have a clear detrimental effect on the crystallinity ofMCM-41 due to an excess silica source. The best quality MCM-41 is synthesized from a reaction gel composition of $1.0\;SiO_2:\;0.27\;CTABr:\;0.19\;TMAOH:\;40\;H_2O$. The pH values of this gel, aged one for 24 hr, and reacted one at $150^{\circ}C$ for 2 days are 12.3, 11.5, and 10.5, respectively. Gel aging for 24 h is essential for preparing high quality MCM-41. Longer aging causes a decrease of hexagonal phase. (0.3${\sim}$2.1) $SiO_2:\;(0.10{\sim}0.50)\;CTABr:\;0.15{\sim}0.23)\;TMAOH:\;(20{\sim}100)\;H_2O$의 비를 가진 겔 혼합물을 실온에서 정한 시간 동안 숙성시킨 다음, $150^{\circ}C$ 에서 48시간 동안 수열 반응시킨다. 합성과정에서 측정된 pH는 TMAOH와 실리카의 농도에 따라 변화되었으며, pH의 변화는 생성물의 상에 영향을 주었다. 생성물의 상은 X-선 회절기로 측정되었다. 0.19에서 0.23 범위에서 TMAOH 비율이 증가함에 따라, 겔의 염기성이 증가하고, 생성물 내 판상이 증가한다. TMAOH의 비가 0.19 이하에서는 pH가 감소하면서 육각상이 감소한다. $SiO_2$의 농도가 낮은 경우, 판상의 양이 증가하고, 높은 농도에서는 과다한 실리카원으로 인하여 MCM-41의 결정성이 저하된다. 결정성이 가장 우수한 MCM-41이 합성된 혼합물의 농도비는 $1.0\;SiO_2:\;0.27\;CTABr:\;0.19\;TMAOH:\;40\;H_2O$이었으며, 이 겔의 초기 pH와 24시간 동안 숙성 후의 pH와 $150^{\circ}C$에서 2일간 반응 후의 pH는 각각 12.3, 1 1.5, 10.5였다. MCM-41의 결정성을 높히기 위해서는 숙성이 필수적이며 하루 정도의 숙성이 가장 적당하였다. 하루 이상의 숙성은 육각상의 비율을 감소시킨다.

映画「青~CHONG~」からみる在日朝鮮人3世の自己アイデンティティ

朴東鎬(Park, Dong-Ho) 한국일본문화학회 2019 日本文化學報 Vol.0 No.81

This study reviewed the self-identity of third generation Zainichis through the movie “Blue~CHONG~”, which was produced by Lee, Sang-Il, a third generation Zainichi, as part of his graduation work at the Japan Institute of the Moving Image. This movie has been highly regarded as realistically representing the ambiguous and complex issue of self-identity among third generation Zainichis through the life of Joseon school students. This is distinct from other movies portraying the agonies of the Zainichis, an ethnic minority. However, this movie has not gained popularity among the public as it is an independent film. Third generation Zainichis are more closely connected with the Japanese society than their former generations. I studied how they perceive the “Nation” and how they define themselves to develop self-identities. This work helps understand third generation Zainichis with a perspective different from text images produced by the Korean’s position, while also working as reminder of the third generation Zainichi’s self-identity issue which has not come to the fore.

혈중 지질과 염증반응을 고려한 최적의 일회성 운동강도 모색

박동호 ( Dong Ho Park ),김용진 ( Yong Jin Kim ),김광회 ( Kwang Hoi Kim ) 한국스포츠정책과학원(구 한국스포츠개발원) 2011 체육과학연구 Vol.22 No.2

이 연구는 다양한 일회성 운동강도 처치의 비교를 통해 혈중지질 반응에 긍정적이면서도 염증반응이 증가되지 않는 최적의 일회성 운동강도를 규명하는 것이었다. 이 연구를 위해 10명의 연구 참여자를 대상으로 자전거를 이용한 최대점증부하검사를 실시하여 각 개인의 무산소역치(Individual Anaerobic threshold; IAT)를 결정하였다. IAT강도에서의 심박수를 100% 강도로 결정하고 Kavornen 공식을 활용하여 70, 80, 90,100, 110% IAT 강도에서의 심박수와 각 강도별로 300kcal를 소비하는데 소요되는 시간이 결정되었다. 실험참여자들은 무선할당방식으로 각 강도에서 300kcal를 소비하는 운동처치를 주당 1회씩 실시하였으며 매운동처치마다 운동 전, 운동 중(150kcal소비시점), 운동 직후, 휴식 30분, 휴식 90분에 상완정맥에서 혈액을 채혈하였다. 또한 아무런 자극이 없는 수준과의 비교를 위해 좌식안정을 취하며 동일한 시기에 혈액만 채혈하는 control 집단도 함께 구성하였다. 수집된 혈액에서 혈중지질(HDL-C, LDL-C, TG, TC)과 염증지표(hs-CRP, WBC와 하위변인)를 관찰하여 얻은 결과는 80%와 90% IAT에서의 운동이 운동 후 90분까지 TG를 운동 전에 비해 약 10%정도 낮추는 것으로 나타났고, 염증반응은 110%IAT까지 크게 증가되지 않는 것으로 나타나 혈중지질에 긍정적이면서도 염증반응을 증가시키지 않는 운동강도는 80~90% IAT인 것으로 판단된다. The purpose of this study was to investigate the optimal acute exercise intensity which has positive effect on the blood lipid concentrations and didn`t increase inflammation, through the comparison of various acute exercise intensity treatments. For this, 10 participants underwent bicycle graded exercise test and by this, their individual anaerobic threshold (IAT) was decided. The heart rate (HR) at the IAT was settled at 100% intensity, and the HR of 70, 80, 90, 100, 110% intensity was calculated by the using the Kavornen formula, and the consumption time for 300kcal at each intensity was decided. All kind of intensities were applied by counter balance method to subjects at one week intervals, and they consumed 300kcal during every exercise trial. One time of control treatment was added to the treatment which consist of blood sampling while resting at chair. the blood sample was collected at pre-exercise, during exercise (at the time of consuming 150kcal), post exercise (PE), 30min after from PE, and 90min after from PE. From the blood, blood lipid (HDL-C, LDL-C, TG, TC) and inflammation parameter (hs-CRP, WBC, WBC subfraction) was analyzed. The result was that 80%, 90% IAT lower TG about 10% until 90min after from PE when compare with pre-exercise while the inflammation response didn`t increased until 110%IAT. It can be concluded that the optimal intensity which has positive effect for blood lipid and didn`t increased inflammation response appeared at 80% and 90% IAT.

탈진 운동 후 세로토닌 운반체 유전자다형성에 따른 혈중 FFA, f-Trp, BCAAs 및 f-Trp/BCAAs의 반응

박동호 ( Dong Ho Park ),김창선 ( Chang Sun Kim ),정동식 ( Dong Sik Chung ),이종각 ( Jong Kak Lee ),이명천 ( Myung Chun Lee ),윤재량 ( Jae Ryang Yoon ),김영수 ( Young Soo Kim ),성봉주 ( Bong Ju Sung ) 한국스포츠정책과학원(구 한국스포츠개발원) 2005 체육과학연구 Vol.16 No.2

본 연구의 목적은 5-HTT 유전자다형성과 운동성 중추피로와의 관계를 규명하는데 있었다. 피험자 선정을 위해 대학교에 재학중인 교양(111명) 및 체육관련 학과 남학생(162명) 273명을 대상으로 혈액을 채취하여 5-HTT 유전자형(SS형, LS형, LL형)을 검사하였다. 이들 중 본 연구 목적에 맞는 40명의 피험자들이 최종적으로 선정되었다. 선정된 피험자를 대상으로 유전자형에 따라 3개 집단으로 구분하여(SS형 집단 16명, LS형 집단 15명, LL형 집단 9명), 장시간의 운동(1차 VT 강도, 2차 VO2max 강도, 3차 VT 강도 = 평균 58분의 운동소요시간)을 처치하여 피로를 유발시킨 후 5-HTT 유전자형에 따른 혈중 FFA, f-Trp, BCAAs, 및 f-Trp/BCAAs의 변화를 관찰하여 다음과 같은 결과를 얻었다. FFA의 경우, SS형은 안정시와 비교하여 운동종료 30분후에(p<.01) 그리고 운동직후와 운동종료 30분후를 비교할 때 유의하게 증가(p<.05)하였고, 24시간후에는 운동종료 30분후와 비교하여 유의하게 감소하였다(p<.05). LS형은 안정시에 비하여 운동종료 30분후(p<.05) 유의하게 증가한 반면 LL형은 안정시에 비하여 운동종료 30분후 유의한 증가를(p<.05) 그리고 24시간후가 운동종료 30분후에 비하여 유의한 감소를 보였다(p<.05). f-Trp는 시기간 세 집단 모두 비슷한 경향을 보였으나, LS형에서만 운동직후와 비교할 때 24시간후에 유의하게 감소하였다(p<.05). BCAAs에서는 LL형을 제외한 SS형과 LS형에서 운동종료 30분후를 안정시 및 운동직후와 각각 비교할 때 유의하게 감소하였다(p<.01, p<.01). f-Trp와 BCAAs(f-Trp/BCAAs)의 비율에서는 세 집단 모두에서 시기에 따른 경향은 비슷하였으나, 단지 LS형에서만 24시간후를 운동종료 30분후와 비교할 때 유의하게 감소하였다(p<.05). 24시간후의 혈장 f-Trp/BCAAs 비율 감소는 BCAAs의 증가와 f-Trp의 감소에 의한 것으로 나타났다. 유전자 타입과 대립형질의 빈도 분포(n=273)에서는 SS형 62.7%(n=171), LS형 30.0%(n=82), LL형 7.3%(n=20), 그리고 S 대립형질 77.7%(n=424), L 대립형질 22.3%(n=122)로 나타났다. 즉, LL형이 SS형 및 LS형에 비해 매우 낮은 분포를 보였다. 이상의 결과에서 비록 통계적으로 유전자형에 따른 집단간 유의한 차이는 없었으나, f-Trp의농도 및 f-Trp/BCAAs의 비율 모두 LL형이 SS형과 LS형보다 높게 나타났다. 이것은 안정시 및 장시간의 고강도 운동시 5-HT의 합성과 방출의 증가, 즉 5-HT의 신경전달이 LL형에서 높을 수 있음을 간접적으로 시사하는 것이다. 그러나 유전자형에 따른 집단간 유의한 차이가 없어 이러한 결과의 일반성을 단정하기 어렵지만, 전체 채혈 시기에 걸쳐 SS형과 LS형에서 LL형보다 낮은 경향을 보인다는 것은 특히 장시간의 고강도 훈련을 반복적으로 지속하는 선수들은 5-HTT SS형과 LS형이 유리하게 작용할 수 있을 것으로 판단할 수 있다. The purpose of this study was to verify the relationship between 5-HTTLPR gene polymorphism and exercise-induced central fatigue. Polymorphisms in the 5-HTTLPR were determined in genormic DNA obtained from 273 college aged mem. Forty out of 273 college aged mem were participated into this study and divided into three groups according to their genetypes (SS= 16, LS= 15, and LL= 9). All participants performed exhausted exercise, consisting of running them on a treadmill (with a 6° slope) for 3min at 5km/hour, 30min at ventilatory threshold intensity and, after 3min rest, sprints of 1min at 100%VO2max with 2min of walking between each sprint until re-exhasted, to lead fatigue. For the trial, blood samples were collected at pre-exercise (baseline), immediately post-exercise (IPE), 30m post-exercis (30m PE), and 24hours post-exercise (24h). Serum and plasma samples were analyzed for free-trpytophan (f-Trp), branched-chain amino acids (BCAAs), free fatty acids (FFAs), and f-Trp/BCAAs. Regardless of genotypes, the significant increases in 30m PE FFAs compared to baseline (p< .01 or p< .05) occurred while the decreases in 24h FFAs concentration compared to 30m PE occurred. The significant decrease in f-Trp (p< .05) at the 24h occurred only in LS genotype while the decrease in 24h BCAAs compared to both baseline (p< .01) and 30m PE BCAAs (p< .01) except LL genotype was observed, respectively. In assessing the f-Trp/BCAAs, the decrease in 24h f-Trp/BCAAs compared to 30m f-Trp/BCAAs occurred only in LS genotype (p < .05)although a similar decrease-tendency was observed in SS genotype. The significant reduction in f-Trp/BCAAs (p < .05) at the 24h was due to the increase in BCAAs and the decrease in f-Trp. In 273 subjects as general population, L allele frequencies were lower (77.66%) than S allele frequencies (22.34%) and the genotype frequencies were SS, 62.7%; LS, 30.0%; and LL, 7.3%. The genotypic frequencies in each group conformed to the Hardy-Weinberg equilibrium (X2 = 2.559, d.f. = 2, p = .278). Consequently, although no significant group difference was determined in changes of f-Trp and f-Trp/BCAAs ratio, the LS and SS genotypes showed a trend for lower levels or ratio of these variables, as compared with the LL genotype. This may imply that especially long distance runners with the LS and SS genotypes may have relative hypofunction of the 5-HT system due to the lower 5-HT level in the extracellular space, compared to the athletes with the LL genotype. This means that 5-HTTLPR genotype may be associated with endurance performance and elite endurance athletes with S allele might gain advantage over athletes with L allele.

태백선수촌에서의 3주간 훈련이 엘리트 복싱선수들의 Hct과 Hb의 농도, 운동효율성 및 3km 달리기 기록에 미치는 영향

박동호 ( Dong Ho Park ) 한국스포츠정책과학원(구 한국스포츠개발원) 2007 체육과학연구 Vol.18 No.4

본 연구는 태백선수촌 훈련장(1,330m)에서의 훈련이 고지대 적응효과를 유발할 수 있는가를 규명하기 위한 것이었다. 국가대표 복싱팀 22명을 대상으로 동일 량과 동일 강도의 훈련을 각각 3주간 해수면 훈련(태능선수촌, 100m)과 태백선수촌 훈련(1,330m)을 실시한 후 Hct(%)과 Hb의 농도(g/dl), 3km 달리기기록, VO2max (ml/kg/min), 운동효율성(VO2/velocity)과 최대점증부하검사 시 회복기 젖산 및 심박수 반응(안정시, 운동직후, 휴식 3분, 5분, 15분) 등을 분석하여, 다음과 같은 결과를 얻었다. 최대점증부하검사 시 탈진시까지의 운동소요시간이 유의하게 증가하였다(3분 9초 증가, p<.001). 최대점증부하검사 중 14km/h 속도에서의 운동효율성은 태백선수촌 훈련 전·후 간의 비교에서 유의한 차이가 발생하지 않았다(p>.05). 3km 달리기 제1차, 2차 기록 측정시 평균속도는 각각 16.37± 1.30km/h, 16.95±1.38km/h로 제1차 기록에 비해 제2차 기록이 0.58km/h 향상되었다(22초의 기록 단축, p=.0004). 태백선수촌 훈련 후 Hct의 경우, 약 9.17% (p<.001) 그리고 Hb는 8.74%(p<.001) 유의하게 증가하였다. 혈장량 변화율(%)은 시기간(F= 54.09, p<.001), 집단간(F= 12.07, p<.01) 그리고 상호작용(집단×시기, F= 7.17, p<.05) 모두 유의한 차이가 발생하였으며, 태백선수촌 훈련 후 그 양상이 더욱 두드러지게 나타났다. 이상의 결과를 종합하여 볼 때, 3주간의 태백선수촌(1,330m)에서의 훈련은 2,000m 이상의 고지대 체류 효과를 유발할 수 있을 것으로 판단된다. To investigate the training effect at the Taebaek training center(1,330m) on running economy(RE), hematocrit(Hct, %), hemoglobin(Hb, g/dl), 3km running record(3-KR), and VO2max, 22 elite national boxing players(n=22) trained at the similar training intensity and volume for 20days at 100m and for 20days at 1,330m. RE was assessed during submaximal treadmill runs at 14km/h before and after completion of intervention. VO2, heart rate, and blood lactate concentration were determined during the final 60s of each run, whereas Hb, Hct, 3km record, VO2max, and expended running time on the treadmill during incremental test were measured on a separate occasion. All testing was performed under normoxic conditions at approximately 100m. RE after 20days training at 1,330m compared with 20days training at 100m was not significantly different(p>.05). However, expended running time(3m 9s, p<.001) on the treadmill during incremental test was significantly improved. In addition, 3-KR was improved from 16.37±1.30km/h to 16.95±1.38km/h(p<.001). As a blood variables, Hct(%) and Hb(g/dl) were significantly increased both 9.17% (Hct, p<.001) and 8.74%(Hb, p<.001). We conclude that 20 days of training at 1,330m altitude improved the 3-KR and expended time on the treadmill during the incremental test as well as increased Hct and Hb concentration of elite national boxing players.

일반논문 : 나말여초기(羅末麗初期) 강원지방 평기와 연구

박동호 ( Dong Ho Park ) 한국고대학회 2011 先史와 古代 Vol.35 No.-

본 연구에서는 통칭 나말여초(羅末麗初)로 비정되어 왔던 강원지방의 l6개소 중요 유적을 대상으로 출토된 평기와의 제작기법과 문양의 구성 형태를 고려하여 분석을 시도하였다. 그 결과, 강원지방에서 출토된 통일신라∼고려초기의 기와들은 총 5단계로 시기 구분을 할 수 있었다. 시기구분에서는 평기와의 타날판과 비율 등을 고려하여 시기적 차이를 추정하였으며, 공반된 유물(막새기와 및 토기)과 문헌기록 등을 참조하였다. 시기구분 결과. 1단계(7세기 후반~8세기 중반), 2단계(8세기 중반~8세기 말), 3단계(8세기 말~9세기 중반), 4단계(19세기 중반~10세기 중반), 5단계(10세기 중반~11세기)로 구분되었다. 이중 4단계에서는 장판의 타날판 기와들만이 확인되어 장판타날판의 정형화 시기로 추정되었으며, 5단계에서는 고려기와의 성립기로 판단하였다. This research aims to investigate into plain roof-tiles excavated from 16 major relics in the Gangwon Province which were manufactured at the end of the Silla Dynasty and at the beginning of the Goryeo Dynasty: into their manufacturing techniques including into the forms and shapes of the patterns, with a focus on the period when they were produced. As a result, it is found that the tiles were classified in five stages. The period is divided into 1st stage (the second part of the 7th century~the middle of the 8th century), 2nd stage (the middle of the 8th century~the end of the 8th century), 3rd stage (the end of the 8th century~the middle of the 9th century), 4th stage (the middle of the 9th century~the middle of the 10th century), and 5th stage (the middle of the 10th century~the 11th century). It is estimated that the 4th stage was when long beating plate tiles were standardized since only such tiles are identified in that stage and that the 5th stage was when Goryeo Dynasty tiles were fully established.

블록 부동 소수점 기반 시스톨릭 어레이를 활용한 CNN 가속기

박동호(Dong-ho Park),최수일(Su-il Choi) 대한전자공학회 2022 대한전자공학회 학술대회 Vol.2022 No.6

在日映画<血と骨>に表われた暴力性研究

朴東鎬(Park, Dong-Ho) 한국일본문화학회 2015 日本文化學報 Vol.0 No.65

After the war, the appearance of leftish Japanese (Jai-nichi) movie directors and their active working with expiating on suppression of Korean lead making a lot of movies which showed remorse of dominating Korea and represented negative view to the rounding-up of discrimination. But Japanese tend to evaluate those movies as reconstructing of minority in Japanese society. We should understand those movies with different point of view. The appearance of Jai-nich was built on close relationship with social and historical circumstances at that time so it’s certain to come at it from another angle. In this study, the Korean-Japanese film 〈Blood and Bones〉 is analyzed in different angle with Japanese view. This movie showed a history of first generation of Jai-nichi through a life of one man (Jun-Pyeong Kim). The Jai-nichi narratives in movies were regarded as a mirror of a Japanese society in transition towards becoming a multiracial country; a fact which post-war Japanese society strove to ignore and eliminate. The presence of a Jai-nichi identity in film, which emerged from the Japanese occupation of Korea represented a unique viewpoint. This study took a skeptical look at this interpretation, and analyzed the protagonist, Jun-Pyeong Kim’s brutality in historical and social perspective. The movie was separated to seven major sequences and analyzed to understand a structure and development of narrative. Greimas’ semiotic square model was used to grasp a diverse meaning of the narrative structure. The character’s acts were analyzed in social and political context and a relationship between Jun-Pyeon Kim and 3 other women became known as an important clue of analyzing Kim’s drastic brutality. So the study tried to find the origin of brutality applying that relationship into Greima’s actor model and Semiotic Square. This study concludes that the brutality of the protagonist, Jun-Pyeong Kim in the film『Blood and Bones』came from Japan"s colonial rule of Korea. In other words, Kim’s several violent behaviors were symbolic of Jai-nichi who lived in the period of unstable and sudden changed imperialism of Japan and it was disclosed through this movie.