間歇的 運動에 의한 脫水 및 水分攝取의 生理的 效果

朴哲浩,朴吉俊,李相于,金永明,朴贊熙,玄松子,呂南會,朴相甲,金榮俊 東亞大學校附設스포츠科學硏究所 1989 스포츠科學硏究論文集 Vol.7 No.-

This study aims at revealing the physiological responses of dehydration (DH) and rehydration (RH) in intermittent exercises at the work intensity of 70% HR max. First, with general student public, three times of exercise (each for 20 minutes) at the given work intensity were taken, with a break for 25 minutes respectively. Their heart rate, rectal temperature and plasma electrolyte concentration both DH and RH were measured. Second, in two groups of athletes and non-athletes, 9 rounds of exercise (for 100 minutes) and 8 breaks (for 60 minutes) were taken, with RH forced 10 times to compensate for the subjects' water loss. Their change in sweat loss and plasma electrolyte concentration as well as the IVDP(Intensive Voluntary dehydration Phenomenon) were experimented. The summary of this research follows. 1) Mean heart rate and rectal temperature in intermittent exercises were higher at DH than at RH, growing up at the increasing level of DH. 2) RH saw no change in the plasma concentration of Na+, K+ and Cl-, while DH observed a significant increase. 3) HCO₃made a significant decrease at DH before growing up. 4) Mg++ had no change, while Ca++ increased significantly at RH and DH. 5) Lactate showed an increase with significance at RH and DH, especially greater at DH. 6) Osmotic pressure increased meaningfully at DH. 7) Anion gap increased significantly at DH and RH. 8) On the other hand, when the forced RH was held, the group of athletes had greater sweat loss per body surface area than that of non-athletes. 9) The athletes' plasma concentration of Na+ and Cl- revealed a clear decrease. 10) There was seen no significant change in the plasma concentration of K+, Mg++ and Ca++ in both groups. 11) The IVDP occurred at the RH of 2.3ℓfor athletes and more than 2.5ℓfor no-athletes.

성균관대학교 물리학과 방음실의 설계 및 제작

朴興秀,尹錫旺,李聖壽,朴光俊,吳世珍 성균관대학교 기초과학연구소 1986 論文集 Vol.37 No.1

An anechoic chamber was constructed to make to condition of acoustic free field at the Department of Physics, Sung Kyun Kwan University. In this paper the criteria for the design and construction of the anechoic chamber are described. 48cm long wedges of density 15.3kg/㎥ glasswool attached to the 40×20×20㎤ base were used for the lining of anechoic chamber with the cutoff frequency of 125Hz. The interior space of the chamber is 3.56m long, 3.38m wide and 2.37m high.

地域經濟活性化를 위한 農村市場開發에 관한 硏究 : 忠南 禮山地域市場을 中心으로

尹畯相,李武鉉,申尹撤,洪性贊,朴奉圭 公州大學校 産業開發硏究所 1994 産業開發硏究 Vol.2 No.-

Since the first year economic development plan, imblanced development of national territory during the economic development process has aggravated remarkable disparity between urban and rural areas. For this reason, this study introduced the development of rural market as one of the development strategies of regional economic to correct the imblance and relieve regional disparity. The purpose of this study were to look into the present situation of traditional rural market and to analyze the problems for the rural development in view of the current road situations in the rural areas and status of marketing facilities in market center and to measure the degree of rural area people's satisfaction to the rural market and to suggest the development plan of activating for rural market center. To collect data, the Yesan Gun rural market were selected and a total of 591 residents and 178 merchants were sampled as final subjects of survey. Interview and/or questionnaire method was the main method of data collection. The major findings of this study were as follows: 1) The population of Yesan Gun has decreased 2.85 persons per year from in 1984, but the number of vehicles were increased 2.85 times than in 1989. And the parking capacity of Yesan Eup was only 129 vehicles which were below of the total vehicles of Yesan Gun area (14,352). The number of Yesan area markets were 8 markets which consisted of 1 permanent market and 7 periodic markets. But as the economy has been developed, the conditions of rural markets have been changing. That is, the role of periodic market tends to be weakened with the growth of large cities, reinforcement of permanent markets, development of traffic facilities, large production, preferring high quality goods. 3) Generally, the people of Yesan Gun were attached for purchasing the necessaries of life and comodities and farming materials to ① Yesan Eup ② Seoul ③ Chonan Shi ④ Hongsung gun ⑤ Daejeon Shi. 4) The degree of community people's satisfaction to the town market presented 26.6% which meaned higher than dissatisfaction(9.5%). And the degree of people's inconvenience of accessibility to market center by transferring of bus terminal presented 64.2% which meaned higher than average. 5) The degree of people's dissatisfaction of traffic system in Yesan gun area presented followings: the road networks(61.5%), parking facility(68%), bus route(54%). 6) By the survey of merchants of Yesan gun area, on the average, it showed followings: the size of store was 6-10 pyeong(40%), the type of enterprise was retail dealer(70.9%), and purchasing place was wholesale dealer from Seoul(51.8%). 7) And they thought that Yesan town market were too small(70.8%), and the diversifying of goods was not enough(35.5%). 8) The merchants of Yesan area showed that the degree of into venience to traffic system was 72.7% and its to parking facility was 83.3%. And they complained that community administration agency have not tried to activate market(79.1%). Based on the results of this study, the following recommendation were made for activating regional economy and community market. That is, it is to strengthen the economic function in community market so as to suffice the economic and social activities for settlement area as their living space. And it is necessary to improve the interrelationship of the central functions. 1) So, the accessibility between market center and its surrounding areas must be rised. ① the enforcing preferentially to pave the bus terminal and market center to link two place. ② the running of shuttle-bus two place every regular market day. ③ the widening and connecting the road to rise accessibility between market center and its surrounding area. ④ the enforcement of parking facility around market center. ⑤ the constructing marketing centered area as intergrated body of various marketing facilities in the adjacent site is the centered area planned to achieve efficient marketing. 2) The modernization and specialization market center facilities. 3) The strengthening of drawing surrounding area people into Yesan market center. So, the following recommended: ① the development of special products market ② inducing special projects ③ the development tour and leisure course drawing industrial facilities. 4) And it needs to enforce community people's local patriotism and to support community markets by administration agency.

성균관대학교 물리학과 방음실의 음향특성

尹錫旺,朴興秀,朴光俊,李聖壽,金成春 성균관대학교 기초과학연구소 1986 論文集 Vol.37 No.1

The acoustical properties of the chamber at the Department of Physics, Sung Kyun Kwan University are investigated. By using the least square method based on pressure inverse law each reference sound pressure level is determined. The free field data are collected at both outdoor and indoor measurements. The deviations from the free field condition show that a reference sound pressure level plays a critical role in evaluating the performance of anechoic chamber. The cutoff frequency of the anechoic chamber is found to be in the range of 150Hz-170Hz.

간세포암의 고주파 열치료 후 천자침 경로를 통한 전이 1례

조영완,박석주,진한영,김준영,이재익,강명주,박정하,윤정희,박성재,지삼룡,이연재,이상혁,설상영 인제대학교 2006 仁濟醫學 Vol.27 No.-

Radiofrequency ablation(RFA), as a form of minimally invasive therapy for hepatocellular carcinoma, has become an important treatment modality. Because of limitation of surgery, RFA has become standard therapy for hepatocellular carcinoma in some situations. But there are some complications of RFA such as bleeding, infection, hematoma, adjacent organ thermal damage including intestinal perforation, needle track seeding, and so on. There are few reports in the literature that systematically evaluate the incidence of needle tract seeding and its associated risk factors. And only 2 cases of needle tract seeding of hepatocellular carcinoma after RFA were reported in Korea. We report a case of needle tract seeding of hepatocellular carcinoma after RFA.

Influence of Al2O3 Content and Cooling Rate on Crystallization in Fe2O3–CaO–SiO2–Al2O3 Systems

Tae Jun Park,Joon Sung Choi,Dong Joon Min 대한금속·재료학회 2022 METALS AND MATERIALS International Vol.28 No.9

The behavior of silico-ferrite of calcium and aluminum (SFCA) phases and the influence of sintered ore quality were investigatedusing a confocal laser scanning microscope to understand how the Al2O3content of iron ore affects the sintered orestructure and the crystallization behavior of SFCA in a Fe2O3–CaO–Al2O3–SiO2 pseudo-quaternary system. The experimentalresults were used to inform simulations of the heterogeneous dynamic behavior in response to the rapid temperature changesand various chemical compositions typically encountered in actual sintering processes. Increasing the Al2O3content in theFe2O3–CaO–Al2O3–SiO2 pseudo-quaternary system led to the hematite content decreasing, which affects the reducibilityof the sintered ore. The correlation between the creation of SFCA and the cooling effect associated with varying the Al2O3is discussed in detail.

당뇨병환자에서 뇨증 Fibronectin농도의 증가에 관한 연구

한승범,조준승,손건영,서성문,박근용,조성래,박규영,박정모,이인규,여준기 啓明大學校 醫科大學 1994 계명의대학술지 Vol.13 No.4

Plasma fibronectin is an α₂-glyoprotein, which is produced by vascular endothelial cells. Raised level of plasma fibronectin has been observed in diabetic patients particularly in the presence of microvascular complications. However, no available data exist about urine level of this glycoprotein in diabetic patients. We measured urine fibronectin level by ELISA methods in 54 diabetic patients who have microvascular comlications or not. The following results were obtained. 1) Urine fibronectin level(㎍/g creatinine) in diabetic group(1740.0±678.0) is increased compaired with those in normal control group(471.0±59.0). but this results were not significantly different among two groups(P>0.05). 2) Urine fibronectin level(㎍/g creatinine) was significantly increased in patients with nephropathy (6188.0±3144.0) compared with those in normal control group(471.0±59.0) and patients without nephropathy(645.0±251.0)(P<0.001). 3) There were a significant correlation between BUN, creatinine, creatinine clearance, 24hr urine total protein and urine fibronectin level in diabetic patients. Our data suggest that urine fibronectin excretion level might be used as a sensitive guide for diabectic nephropathy.

당뇨병 환자에서 발생한 대장 가성폐색증 1예

이재형,강준구,박준성,이창범,박용수,김동선,함준수,김태화,안유헌,박충기 대한당뇨병학회 2002 임상당뇨병 Vol.3 No.2

가성 장폐색은 기계적인 폐색부위가 없이 복부팽만과 구토 등 장폐색의 증상과 징후가 나타나는 질환을 말하며, 선행원인을 찾을 수 없는 원발성 가성 장폐색과 다른 질환에 이차적으로 발생하는 속발성 가성 장폐색으로 나눌 수 있다. 당뇨병은 잘 알려진 속발성 가성 장폐색의 원인이지만 실제로 당뇨병에 의한 가상 장폐색의 발생 빈도는 매우 드문 것으로 보이며, 가성 장폐색의 적절한 치료에 대해서는 아직 논란이 있다. 저자들은 2형 당뇨병 환자에게 대장에 국한된 급성 가성 장폐색을 진단하고 보존적 치료를 시행하여 호전된 1예를 경험하였기에 문헌고찰과 함께 보고하는 바이다. Colonic pseudo-obstruction is a disorder characterized by gross dilatation of the colon in the absence of any anatomic lesions, which obstructs the flow of the intestinal contents. Diabetes is a well known cause of secondary pseudo-obstruction but its prevalence in rare and not well understood. A 59-year-old woman patient was admitted due to abdominal distension and nausea of a day's duration. She was diagnosed with diabetes 15 years ago, but the condition had been poorly controoled. On the abdominal radiographs, there were marked small and large bowel dilatation with the, exception of the descending colon. Our initial diagnosis was mechanical obstruction, but the possible causes were not found. Also, we could not find another cause of the secondary pseudo-obstruction, with the exception of diabetes mellitus. Thus, she was diagnosed with a diabetes induced intestinal pseudo-obstruction. The colonic dilatation was resolved by conservative management and she became comfortable in 10 hospital days, and was subsequently discharged.

인슐린비의존형 당뇨병 환자에서 심전도상 QT 간격 변수들과 허혈성 심장질환 발생의 관계

서승오,진도균,박진철,진희종,임성희,유형준,박성우,박종태 대한노인병학회 2000 Annals of geriatric medicine and research Vol.4 No.3

LNT를 통해 분석한 국립공원 탐방목적과 산행 윤리 의식의 상관성 : 내장산국립공원 백양사지구와 남창지구를 중심으로

최형철(Choi Hyung Chul),박재철(Park Jae Chul),노재현(Roh Jae Hyun),신상섭(Shin Sang Sup),허준(Huh Joon) 한국산림휴양학회 2010 한국산림휴양학회지 Vol.14 No.3

본 연구는 LNT 항목의 분석을 통해서 산행 목적과 산행윤리의식 사이의 차이를 규명하기 위하여 수행되었다. 이를 위해서, 내장산국립공원의 백양사지구와 남창지구를 사례로 연구를 수행하였다. 이를 통해 국립공원 방문목적에 따라서 윤리 의식이 유의한 차이가 있음을 확인할 수 있었다. 다시 말하면, 산행목적의 탐방객이 행락 목적의 탐방객보다 윤리 의식이 높은 것을 확인할 수 있었다. This study was performed to identify the difference between purpose and ethics consciousness of national park visit through analysis of LNT(Leave No Trace) items. For this, case study was performed in the Baekyangsa and Namchang district in Naejang national park. Study methods were questionnaire and statistic analyses. Through these, the difference of Ethics Consciousness of national park visit according to visit purpose of one was identified. In other words, it was identified that visitors for climbing purpose had higher than those for pleasure-making in Ethics Consciousness of National Park Visit.