http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Active Audit and Topology Adaptation in Unstructured P2P Overlay Networks
Park, Jun-Cheol Research Institute of Science and Technology HONGI 2005 Hongik Journal of Science and Technology Vol.9 No.-
To make a peer-to-peer(P2P) network free from selfish or malicious peers is a challenging task because of the flat, fully distributed, autonomous, and anonymous nature of such networks. In this paper, we focus on a peer's intentional act of dropping a relaying message, which is hard to be traced to its doer. We propose an audit and topology adaptation scheme to confine and weaken the ill effect from peers dropping messages on other peers in an unstructured P2P network. Using active network technologies, the scheme makes some routers with augmented capability assist the peers in adjusting their overlay connections. It uses a small set of basic primitives only and thus applies to all kinds of unstructured P2P networks. In fact, any legacy peer can execute the algorithm used in the scheme for its own gain by issuing a single query as if it were searching for a file. The scheme encourages the peers to comply with the protocol of the network, which leads to the improvement of service quality and peer satisfaction level. As preliminary results, a restricted usage pattern of the scheme is experimented using various metrics, which demonstrates the practicality of the approach.
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.
제 3 대구치 발치시 환자의 호흡 패턴이 스트레스 변화 양상에 미치는 영향
이상명,김형욱,박양호,김진철,박준우,이성준,안재목,Rhee, Sang-Myung,Kim, Hyung-Wook,Park, Yang-Ho,Kim, Jin-Cheol,Park, Jun-Woo,Rhee, Sung-Jun,Nyamdorj, Selenge,Ahn, Jae-Mok 대한구강악안면외과학회 2007 대한구강악안면외과학회지 Vol.33 No.5
Purpose: Heart rate variability(HRV) is the clinical consequence of various influences of the autonomic nervous system(ANS) on heart beat. HRV can estimate the potential physiologic rhythm from the interval between consecutive beats(RR interval or HRV data). It is known as RSA which represents respiration-related HR rhythmic oscillation. Previous studies demonstrated a specific breathing pattern(0.1Hz, 6breaths/min) to improve a physiological body condition related to the stress. In this paper, the level of stress would be evaluated in terms of three phases of the dental treatment, combined with 6breaths/min. Methods: These phases include before, during and after tooth extraction or anesthesia or something.36 patients' stresses were assessed using HRV stress analyzer in each phase in Kangdong Sacred Heart Hospital, and Chuncheon Sacred Heart Hospital, Hallym University Medical Center from Jun. to Sept. of 2007. HRV 5-min data collected were analyzed in time-domain and frequency-domain to evaluate the activity of autonomic nervous system(ANS) which represents the level of stress. Results: All HRV parameters including HF(high frequency), LF(low frequency) and LF/HF ratio showned a significant change affecting the ANS balance. There was a 6.4% difference between R(LF/HF)s on general breathing pattern for balance of Autonomic nervous system, but on controlled breathing pattern, 0.1Hz, was made narrow till 1.4%. The activity of ANS has increased by 1.4% on general breathing pattern, and by 2.9% on controlled breathing pattern, 0.1Hz. Conclusion: After analysis of preoperative stress changes and effect of breathing pattern of 0.1 Hz on the stress in 36 patients who have undergone third molar extraction, following was concluded. In the preoperative stage, the sympathetic change was the greatest?after the?anesthetic injection, and stress was relieved by controlling the breathing pattern to a frequency of 0.1Hz.
박치영,모성환,문철호,곽재정,김태종,전용준,박유환,정춘해 朝鮮大學校 附設 醫學硏究所 1995 The Medical Journal of Chosun University Vol.20 No.2
von Willebrand's disease (vWD) is the most common autosomal-dominant inherited disorder resulting from a quantitative or a qualitative defect of von Willebrand factor (vWF). The most diagnostic pattern is the combination of a prolonged bleeding time, a reduction in plasma vWF concentration, a parallel reduction in ristocetin cofactor activity, and reduced factor Ⅷ activity, In this case, ristocetin-induced platelet aggregation data were compatible with that of vWD. Bleeding times were prolonged over 4 minutes, vWF antigen levels were 45%. vWF ristocetin cofactor activities were 0~1% and factor Ⅷ levels were 31%, when compared to the normal control. We report the case of a family with vWD. characterized by a quantitative defect in vWF
박종석,이준호,이기철 弘益大學校 科學技術硏究所 1999 科學技術硏究論文集 Vol.10 No.1
Recently, spatial data mining has become an important area as geographic information systems are affecting people more in many areas. In the past decade, knowledge extraction from raw data has been extensively studied. How to utilize the data mining technique for building a spatial data mining system is suggested in this paper. Especially, descretization of class attribue may affect the quality of the system, and after decising a partner attribute, we repeatedly re-discretized the class attribute and partner attribute alternately until no more recognition rate is improved. Also, we suggested a general query form which may be used in most spatial mining domains. The experimentation has been performed on TIGER data to prove the stability of our method.
박병주,노영태,이상봉,이영덕,전동호,박철준 釜山大學校 附設 體育科學硏究所 1997 體育科學硏究所 論文集 Vol.13 No.-
The decrease of working time and the increase of leisure time occused by the forms of Factory-Automation, Office-Automation and Household-Automation. The number of people involved in sports & leisure activities are world-widely increasing, and accordingly the demand of sports & leisure goods is outstandingly increased nowdays. In this regard, the main purpose of this study is to find out how the demand and desire of consumers are being formed by purchasing sports & leisure goods, to analysis major influencing consumers' purchasing activities by means of inspecting consumers' recogintion and attitude on sports & leisure goods. The following are results ; 1. In sports & leisure activity, this study is found out that 34 men(15.5%) play once in a week, 31(14.2%) play twice or thrice in a month, 29(13.3%) play twice or three in a week. But 31 women(14.2%) play twice or three in a month, 18(8.2%) play once in a week and 25(11.4%) never do it. 2. In use of purchasing goods, man in that to physical training 114(52.1%), to leisure 13(5.9%), etc 9(4.1%), women buy to leisure 75(34.3%), to physical training 5(2.3%), etc 3(1.3%). 3. The satisfied degrees of consumers is that man(3.82±0.7) is more than woman(2.86±0.7). 4. The determinant factors in purchasing is that woman is higher than, man in price, color, quality and design. But man is higher than woman in brand. 5. In improve method of sports and leisure goods, they answered in quality 113(51.6%), in design 66(30.2%), in price 16(7.3%), in brand 14(6.46%), in color 4(1.8%), etc 6(2.7%). 6. Information resources have mass media 52(23.7%), follow or friends 36(16.4%), show window or seller 21(9.6%). 7. The determinant factors of purchasing goods is 128(58.4%) in quality, 47(21.5%) in design, 37(16.9%) in color, 7(3.2%) in brand.
조정ㆍ카누選手의 最大酸素攝取量 및 유ㆍ무산소역치에 관한 硏究
朴哲浩,李相于,金榮俊 東亞大學校附設스포츠科學硏究所 1987 스포츠科學硏究論文集 Vol.5 No.-
The purpose of this study is compared with VO₂max, aerobic and anaerobic threshold of elite rowing and canoe player. For the subjects, 15 members of athlets were chosen, 8 members of rowing and canoe elite player. They did exercise with start speed of 140m/min without treadmill slope and the speed was incremented by 20m/min every minute and they were finally led to exhaustion. Ventilation was continously measured by douglas bag method every minute. The measurement of aerobic and anaerobic threshold were done by non invasive indices. Aerobic threshold (Aer T) was decided by the changing point of the first increment of the ventilation and the change point of V??ㆍVO₂?? and F??O₂. Anaerobic threshold (An T) was decided by the changing point of second increment of ventilation and changing point of V??ㆍVCO₂?? and F??CO₂. The conclusion were as follows: 1. There was no significant difference in VO₂(ml/kg.min) of the rowing players for the canoe players. But VO₂max(ℓ/min) was significantly difference. 2. For VO₂Aer T, VO₂An T, %VO₂AerT and %VO₂AnT of rowing players was significantly higher than canoe players and there was no difference in any other factors.
박철호,김영준,김우규,박태열,홍명엽 東亞大學校附設스포츠科學硏究所 1999 스포츠科學硏究論文集 Vol.17 No.-
The purpose of this study was to evaluate the anaerobic thresold and EPOC(Excess post-exercise Oxygen Consumption) in treadmill exercise of taekwondo players(n=7),and group of controls college students(n=7). The started treadmill exercise with speed of 120m/min and within treadmill 5% slope. Especially the treadmill speed was increased with 20m/min per two minutes and subjects were finally led to exhaustion. The results obtained from this test were as follows: 1. The VO₂max( /min), VO₂ max(kg) showed significantly higher differences taekwondo group than control group in maximum exercise. 2. The ventilation volume showed significant difference taekwondo group than control group in maximum exercise. 3. The anaerobic threshold showed significant difference taekwondo group than control group in maximum exercise. 4. The EPOC showed significant difference taekwondo group than control group in maximum exercise.