불포화 점성토의 등방압축 상태에서 발생하는 항복곡면과 경화함수

송창섭 ( Song Chang Seob ) 한국농공학회 1997 韓國農工學會誌 : 전원과 자원 Vol.39 No.1

This paper presents yield surfaces and hardening laws for describing the state of an unsaturated soil under isotropic compression and suction changes. The yield surface is formulated within the framework of hardening plasticity using two independent sets of stress variables : the excess of total stress over air pressure and the suction. And the application of the yield surfaces and hardening laws are confirmed from the result of the experiment. To this end a series of suction-controlled isotropic tests are conducted on clayey soils. Matric suction is controlled by the axis translation technique using high air entry ceramic disk. The specimens are compacted using a half of Proctor compaction energy with 5 % lower of water content than the optimum moisture contents. From test results, existence of the yield surfaces and an application of hardening laws to samples are confirmed· by comparison between test and predicted results. And it is confirmed that LC yield locus is extened with the total plastic deformations induced by suction or stress changes, however, SI yield locus is only extended with the plastic deformations by induced suction changes.

에코콘크리트의 독성시험

宋昌燮,李信昊,金明煥 忠北大學校 農業科學硏究所 2003 農業科學硏究 Vol.20 No.-

This study was performed to analyze the toxic effects fo ecoconcrete which was developed to be applicate the farm road and agricultural structure's backfill materials To this ends, a series of test was conducted for the soil picked in Hagso, located in Chungbuk province The mixture ratio of ESC was 10%, 20% and 30% by weight of dry soil Produced sample was observed through state of fish by intervals of time From the first toxic test result, singularity symptoms were observed to fish increases with ESC mixture ratio Common symptoms were observed impaired digestion, difficulty in breathing, body color change Specially, singularity symptoms were observed the most notedly in aquarium which mixture ratio 20% After 18 days the second toxic test result, it was found that in number of survival of fish could not observed change in aquarium, excepted ESC mixture ratio 20% Therefore, developed ecoconcrete does not influenced in number of survival of fish

진동대 모형 실험과 3차원 수치해석을 통한 농업용 저수지의 내진안정성 분석

송창섭, 김명환, 우제근 忠北大學校 農業科學硏究所 2017 農業科學硏究 Vol.33 No.1

The object of this paper was to determine seismic safety of agricultural reservoir. This study was carried out to analysis for the displacement characteristic and seismic acceleration characteristic. This study compare and evaluated the results of shaking table tests and 3-D Numerical analysis. As a result of the shaking table test, acceleration increased 10% after the installation in the short period seismic wave toward the center of levee, The maximum displacement was 11.98 mm in long - term seismic wave, and the permissible shipment variation was corrected to be less than 1% and 220 mm in ‘Assessment and improvement of seismic performance of existing dam’. As a result of 3-D Numerical analysis by combined load of railway vibration load and ground acceleration, the acceleration increased by maximum 2.97 times from bedrock acceleration 0.154 g in short period and long period seismic wave, The displacement was found to be 79.6 mm above the bank in the long - term seismic wave after construction, and the permanent displacement was 11.5 mm in the railway. 3-D Numerical analysis results showed ‘Assessment and improvement of seismic performance of existing dam’ as well as shaking table model test. Further research is needed on the combined action of railway and seismic loads for the seismic stability of agricultural reservoirs.

웹페이지 체류시간을 활용한 성향분석 시스템의 설계 및 구현

김창근,탁한호,송태섭 진주산업대학교 농업기술연구소 2007 農業技術硏究所報 Vol.20 No.-

If web users visit highly attractive pages during the navigation pattern, they spend more time over viewing and visiting the pages. This can be important information for electric commerce as well as for website owners to analyze what web sufferer’s tastes are. This paper is designated to find out sufferer’s precise taste by estimating how much time sufferers’ spent in certain sites that they have visited.

希臘哲學에서의 身體觀에 관한 硏究 : Planton과 Aristoteles를 中心으로

崔昌俊,宋銀燮 군산대학교 1985 論文集 Vol.10 No.-

If we compare Aristotele's view about human body with that of plato's, the latter assumed binary attitudes of soul and body by the view of idealism and conceptualism, and he gave more priority to the soul than to the body. Contrarily, Aristotle assumed the attitude of monism of soul and body to achieve the individual happiness focused on the principle of searching Reason, based on the individual happiness. But, today, the attitudes of Plato's and Aristotele's are contradicted with those of modern education which are to achieve the sound harmony of soul and body. Each of Plato's Philosophical thought and Aristotele's 'harmony and meson' is significant, since the modern educational idea is to achieve the balance of soul and body, although the soul is so much contaminated with mammonism in modern ages. Accordingly, to build the forms of physical education there should be the starting line which includes those ideas of Plato's and Aristotele's, to meet the desirable principles and the philosophy of physical education as well.

전통 흙집의 주거 환경 특성

리신호,송창섭 忠北大學校 農業科學硏究所 2003 農業科學硏究 Vol.20 No.-

The characteristics of temperature, humidity, air, and noises was analyzed to know the residential environment of the earthen house with core walls and wood frameworks The daily variations of temperature and humidity are small The purification effect of room air and the suppression effect of noises are confirmed

멀티미디어 시스템을 위한 버퍼 제어기의 알고리즘에 관한 연구

문병철,송태섭,김창근 진주여자전문대학 1995 論文集 Vol.18 No.-

In multimedia communication systems, the media stream units are produced at a regular time interval. As the packets pass through the network, each can encounter a varying amount of queueing delay. Thus it is difficult to maintain the regular thme interval. This situation leads the receiver's buffer state to starvation or to overrun, so the continuous properties of multimedia streams will not be guaranteed. In order to solve these problems, this paper analyze a buffer controller and compare with two algorithm of buffer controller. In this paper, the critical sections of overrun and starvation are established in the receiver's buffer. One method is calculates the service time for media stream in order to delay the occurrence of overrun of starvation's phenomenon. A service time value is calculated in the ratio of receiver's buffer size. The other method inspects the state of current buffer and calculates the size of region buffer and transition buffer, it can control the magnitude of media scaling policy based on these results whenever the periodic BCY(Buffer Check Time) is invoked. The buffer controller guarantees the quality of the media stream, increasing the utility of the receiver's resource and makes the fast response of media scaling using the properties of buffer loclity.

2급 응급구조사의 성인외상환자에 대한 처치의 적절성 평가

장문수,어은경,김상현,김창섭,송근정,박한규,유지영,최동섭 대한응급의학회 1995 대한응급의학회지 Vol.6 No.2

In Korea, EMT have two classified subgroup of first and second degree : EMT-P, and EMT. For the beginning, authorization of the first EMT was made in this year through the EMT educational program. There are 8 items which EMT can perform the treatment without the supervision by a physician. But there was no previous report of pertinent assesment of treatment performed by the EMT. There upon authors have conducted review of assessment done by the EMT in EC setting, and proposed the following treatment application can be used by EMT at the field of accident. The study materials include adult trauma patient older than 15 years, and sustained trauma within 48 hours before visiting Ewha University DongDaeMoon Hospital Emergency Deparment. The duration of study was from Apr. 1 1995 to Aug. 31 1995. the study was conducted by 5 certified EMT. The EMT's performance was evaluated by the attending Emergency Medicine physician. The result were as followings ; 1. Among the total 5532 ED visiting patients during the study period, 1267 were adult trauma patients who recieved treatment within 48 hours of injury. 2. Among 1222 out of 1267 patients have completed performed survey. 3. Male to female ratio was 2.6 : 1, age distribution was from 15 to 87 years old and mean age was 34.6 years old. 4. The MOI showed : MVA (33.1%), blunt trauma (29.9%), slip down (16.8%), penetrating injury(15.4%), and miscellaneous (5.7 %), burn (3.1%), falling down injury(2.9 %), bite injury(1.1%) in order. 5. There were 437 cases of survey completed by the EMT. For assessment of mental status of 3 different method : AVPU, 5 scale mental status and GCS, were correlated with EM physician with 99.1%, 98.6%, 97.7 %, respectively. 6. For 320 out of 437 cases of survey completed, 319 patients recieved treatment by the EMT within 30 minute and 1 patient between 30 to 60 minute of an ED arrival. 7. For those 437 cases of survey completed, 266 patient (60.9%) had adequate treatment and 54 patients (12.4%) had inadequate treatment. 67 patient (15.3%) did not received treatment but it was adequate inway, and 50 patients (11.9%) did not received treatment even though patient required treatment. In cases of adult trauma patients, EMT's mental status assessment was correlated with EM physician's assessment. But treatment done by EMT without the supervision of EM physician was adequate only in 76.2 %. Therefore, continuous education and assessment of treatment performed by EMT in needed to improve field treatment by EMT future.

鬱血性心不全症에 對한 臨床的 觀察

徐明洙,金吉洙,金佑泰,張錫源,金承源,宋昌燮 대한적십자사 1983 적십자병원지 Vol.10 No.2

서울의 Penicillinase Producing Neisseria Gonorrhoeae 발생빈도(1996)

김재홍,황동규,전재홍,김윤석,김중환,김용준,이창균,임동진,김현수,조창근,김경문,박상훈,전우형,김희성,이호정,차명수,김갑형,김형석,김석우,황지환,박병순,권오상,이민수,송기훈,성소영,이인섭,부태성 대한화학요법학회 1999 대한화학요법학회지 Vol.17 No.2

Background : In recent years, gonorrhea has been panedemic and remains one of the most commom STDs in the world, especially in developing countries. Objective & Methods: For the detection of a more effective therapeutic regimen and assessing the prevalence of PPNG, we have been trying to study the patients who have visited the VD Clinic of Choong-Ku Public Health Center in Seoul since 1980 by means of the chromogenic cephalosporin method. Results: In 1996, 139 strains of N. gonorrhoeae were isolated, among which 53(39.0%) were PPNG. Conclusion: Our results suggests that after a peak of 74.3% in 1993, the prevalence of PPNG in Seoul is gradually declining.