• Applied Biological Chemistry
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• v.16 no.2
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• pp.94-98
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• 1973

1. Tomato variety used was Bogsu No. 2 and it was grown in field. Experiments were conducted in 1971 and 1972 to examine the changes of $CO_2$ product on in each growth-period and the contents of acid, sugar and vitamine C during storage. 2. By controlled atmospheric pressure the effects of respirationreduction in tomato fruits were the most effective at 660 Torr. part. 3. $CO_2$ production of tomato fruits harvested at each growth-period was differently changed at each growth-period and $CO_2$ production in tomato fruit at the same maturity from the plant showed Sigmoid type. 4. $CO_2$ production of tomato fruits harvested at the same ripeness score was in influenced by controlled atmospheric pressure during growth period and $CO_2$ production was reduced at SAP part compared with NAP part during the full growth-period. 5. The change of weight in tomato fruits was decreased in NAP part than in SAP part during storage and contents of acid, sugar, and vitamine C showed the same tendency.

• Journal of the Korean Geographical Society
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• v.52 no.1
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• pp.1-13
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• 2017

This study aims to identify the warm and cold periods(WP, CP) of November appeared in the daily normals of daily minimum temperature of Seoul for 1941~1970 and 1971~2000 and to investigate synoptic characteristics of the temperature changes of WP and CP. The WP temperatures are increased clearly(p value 0.000), the CP temperatures are also warming but not significant statistically. In WP, there are not apparent trends corresponding the warming of WP temperature, in the Siberian High, Sea Level Pressure(SLP), 925hPa surface wind(U925, V925) around the Korean peninsula. In high period(1972~1979) of WP temperature, there are positive SLP anomaly and anomalous anticyclonic circulation pattern of 925hPa wind field over the Korean peninsula then the winter monsoon is weakened and the WP temperature is ascending. In CP, the Siberian high are weakening, the Hokkaido eastern low are strengthening and the westerlies(U925) over the Korean Peninsula are enlarging. So CP temperature are suppressed in rising trend or shows weak descent.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.21 no.1
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• pp.9-14
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• 1976

This experiment was conducted to find out the ., effects of various fertilizer level and Drill-seeding on the growth and yield of the two newly bred naked-barley varieties, Kwangsung and $Bangsa^6$ the former that was bred for the first time in Korea in 1972, is resistant to winter and productive, and the latter that was also bred in Korea by radioisotope treatment in 1974, is of short-stem, early maturing and productive. The grain yield in Drill-seeding was 8 percent higher than that in Conventional seeding. $Bangsa^6$ was more resistant to lodging and more adaptable to the amounts of the increased-fertilizer level than Kwangsung. In Drill-seeding, $Bangsa^6$ is thought to be more suitable naked-barley variety than Kwangsung.

• Journal of Chest Surgery
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• v.39 no.4 s.261
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• pp.328-331
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• 2006

Recurrent spontaneous pneumothorax associated with menstrual cycle was described first by Maurer in 1958. Lilington and colleague established the term 'catamenial pneumothorax' and reported 5 patients in 1972. Catamenial pneumothorax is defined as recurrent spontaneous pneumothorax occurring within 72 hours before or after the onset of menstruation, but the pathophysiology is not clearly understood, We report a recent experience of 37 years-old woman with catamenial pneumothorax, who was treated by thoracoscopic surgery.

• International Area Studies Review
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• v.13 no.2
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• pp.550-572
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• 2009

This paper investigates the textile negotiations between Korea and the U.S. which Korea, as a weaker party in the bilateral trade negotiation, was recognized as making a good performance by Odell(1985). Using the documents of Korean governments at the time - Ministry of Foreign Affairs and the Ministry of Commerce and Industry - telegrams and reports from various sources the paper picks a leveling factor during the negotiations. In the paper, we used a dynamic concept of power for describing the negotiating power, and showed Korea succeeded in making the negotiation symmetric using the Special Cooperative Relationship(SCR) as one of the most conspicuous leveling factors during the textile negotiations with the U.S. The paper contributes to finding the factors that can be used in the negotiations with power asymmetry as a leveling factor for weaker country. Also, based on the findings from the paper, future negotiators can get insights on which factors be used, and how to use those factors for leveling the negotiations with a stronger counterpart.

• Proceedings of the KOR-BRONCHOESO Conference
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• 1982.05a
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• pp.17.1-17
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• 1982

In 1965, Rosenberg reported that platinum compounds not only inhibit growth and cell division of E. coli but also has anti-tumor activity. Since then, through animal and clinical experiments by Welsch(1971), Speer(1972), Rossof(1972), Hill(1974), and Wittes(1975), it was proved that Cis-platinum has excellent supressive effects on malignant tumor, especially on head and neck cancer. Accordingly, Cis-platinum is now widely used, sometimes without any other durg, or sometimes with Bleomycin and Methotrexate etc. Inspite of the strong anticancer effect, the use of Cis-platinum is quite often discouraged because of the reports that Cis-platinum causes auditory impairment at high frequencies above the speech range due to inner ear damage and irreversible change in the renal tubules. Since Kohonen et al(1965), Standnicki et al(1974) reported that Cisplatinum has toxic effects at the basal turn of the cochlea using guinea pig, many studies on ototoxicity after infusion of Cis-platinum have been carried out using animals. But the studies on ototoxicity in human beings can hardly be found except in reports by Piel et al(1974) and Hong et al (1979). So the authors did a study which tried to clarify the ototoxic effect by comparing the hearing level after infusion of Cis-plastinum with the hearing level before infusion of Cis-plastinum in 30 patients who was treated with Cis-platinum and admitted to the dept. of otolaryngology of Yonsei University Hospital during 2 years and a half from July. 1979 to March. 1982 and the following results were obtained. 1) The results of auditory evaluation, using the pure tone average, hearing loss of 4kHz and 8kHz, Speech Reception Threshold, PB score, SISI showed that the difference of dosage does not change the hearing level after infusion of Cis-platinum and before infusion of Cis-platinum. 2) Cis-platinum had no effect on the hearing level of patients with conductive hearing loss, or with sensorineural hearing loss, as well as with normal hearing level. 3) The infusion of Cis-platinum did not cause any change in creatinine clearance, creatinine, uric acid, but only one case showed that Cis-platinum caused severe nephrotoxicity. 4) The infusion of Cis-plastinum did not cause any change in hemoglobin, leukocyte count, platelet count and there was no correlation with the amount of infusion. 5) To see the side effect of hydration practiced with the infusion of Cis-platinum, the electrolytes, particularly the K level in the serum was measured. But the results did not show any change. 6) Judging from the results of this study mentioned above, ototoxicity caused by infusion of Cis-platinum can be prevented by sufficient hydration. Also the results might say that the appropriate method of infusion of Cis-platinum might be effective in the patients with head and neck cancer who had sensorineural hearing loss for whom the infusion of Cis-platinum has been absolutely cotraindicated.

• Journal of Astronomy and Space Sciences
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• v.22 no.4
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• pp.441-450
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• 2005

The organic material is one of the most popular material for the satellites and the spacecrafts in order to perform the thermal management, and to protect direct exposure from the space environment. The present paper observes material property changes of organic material under the space environment by using ground facilities. One of the representative organic thermal management material of satellites, 2 mil ITO(Indium Tin Oxide) coated aluminized KAPTON was selected for experiments. In order to investigate the single parametric effect of protons in space environment, MC-50 cyclotron system in KIRAMS(Korea Institute of Radiological and Medical Science) was utilized for the ion beam irradiation of protons and ion beam dose was set to the Very Large August 1972 EVENT model, the highest protons occurrence near the earth orbit in history. The energy of ion beam is fixed to 30MeV(mesa electron volt), observed average energy, and the equivalent irradiance time conditions were set to 1-year, 3-year, 5-year and 10-year exposure in space. The procedure of analyses includes the measurement of the ultimate tensile strength for the assessment of quantitative degradation in material properties, and the imaging analyses of crystalline transformation and damages on the exposed surface by FE-SEM(Field Emission Scanning Electron Spectroscopy) etc.

• KOREAN POULTRY JOURNAL
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• v.4 no.8 s.34
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• pp.57-60
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• 1972

여기 산란계 10,000수를 확보한 양계장 주인이 있다고 가정하자. 대부분 다른 사람과 마찬가지로 그도 사소한 일에 도저히 신경쓸 겨를이 없었으나 몇달전 주의를 환기, 첵크해보니 계란 1타스 생산에 약2kg의 사료가 소비됨을 알았다. 그는 사료소비가 약간 높다는 것을 알았지만 사료를 허비하여 비용이 올라가는 줄은 몰랐다. 어느날 부화장 세일즈맨이 와서 계란 1타스 생산에 필요한 기준 사료 요구량은 약 1.86kg라고 했다. 그때 그는 계란 1타스당 140g의 사료가 낭비됨을 알았다. 그래서 곰곰히 계산해보니 1년에 1마리가 계란 20타스 생산하면 1타스당 140g 손실이니 20타스면 2.8kg의 사료를 낭비하고 년간수당 140원의 돈을 버리고 있음을 알았다. 1마리당 140원의 손실은 10,000수면 140,000원의 돈을 매년 버리고 있음을 발견하고 깜짝 놀라지 않을 수 없었다. 다행이도 그는 사소한 사료의 손실이 수익에 얼마나 손해를 끼치게 되는가 알게된 것이다. 그때부터 그는 고용인에게 하루 1회 사료를 주던것을 2회로 나누어 주도록 하고 사료운반통은 좀더 서서히 끌도록 하였다. 지금 그는 계란 1타스당 1.86kg의 사료를 소비하고 있으며 사소한 손실에 신경을 쓴 댓가로 전보다 1년에 140,000원의 돈을 더 벌고 있다.

• Journal of the KSME
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• v.18 no.1
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• pp.21-27
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• 1978

1972년 기계설계학과의 창설에 대한 논의가 분분할때 기계설계란 무엇인가 하는 오래된 질문에 제기되었다. 기계설계란 기계를 구성하고 있는 각 요소를 분석하고 이들의 역학적 특성과 제작상 의 문제점을 해결한다고 하여 완성되는 것이 아니고 과거의 경험적 토대위에 새로운 아이디어를 구현시키는 창조활동이다. 따라서 대학에서 강의하는 기계요소가 기계설계의 전부가 될 수는 없 다. 더우기 기계제도와 기계설계를 혼동하는 것은 있을 수 없는 일이다. 우리나라의 공과대학기계 공학과에서의 기계설계교육은 서울대학교공과대학을 비롯한 수개의 대학에서 실시되어온 패턴에 많은 영향을 받았다. 특히 1950년대 미국에서 일기 시작한 기계요소설계의 필수과목 제외로 인하 여 국내에서도 기게제도와 설계과목들이 축소되었다. 더우기 1975년에 와서 본격화된 실험대학프 로그램에 의한 140학점으로의 축소로 이들 과목들은 더욱 위축되었다. 앞으로의 기계설계교육은 어떻게 하여야 할 것인가를 생각하기 위해 외국에서의 동향과 우리나라 기게공업계의 현황 및 설계교육개선방안에 대하여 달하려고 한다.

• Proceedings of the Korean Society of Tribologists and Lubrication Engineers Conference
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• 1989.11a
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• pp.1-15
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• 1989

바이오트라이보로지(biotribology)란 생물학(biology)와 마찰학(tribology)의 합성어로서 그리이스어의 $\tau\rhoc\betao\sigma$(마찰하다)가 어원이며, 마찰 마모 윤활의 학술 용어 "tribology"가 영어로 된것은 1966년이다. 이때 마찰학이란 이학 또는 공학현상으로서 문제를 해석하는데 한정하였고 생물에 대한 문제까지 광범위하게 고려하지 못하였다. 1972년 영국 석유학회, 기계학회 그리고 Rheology 학회의 공동개최로 "윤활제의 레올로지" 회의가 열렸다. 거기서 Dowson 교수(기계공학)와 Right 교수(루마치스 의학)의 공동논문 "Bio-Tribology"를 발표해서 처음으로 그 용어를 제안하였다. Dowson 교수가 열거했던 바이오트라이보로지의 대상은 다음과 같다. (1) 기계에 사용되는 윤활제에 대한 미생물의 영향 (2) 인간의치의 마모 (3) 면도칼에 대한 저마찰 보호막의 작용 (4) 인체내의 유체수송(뇨관내의 유동기구, 타액의 운동, 혈액흐름) (5) 모세혈관내에서 적혈구의 운동과 혈장에서 그의 윤활작용 (6) 화상치료시 "정압기체 축수"적 부양 (7) 음식물을 씹을 때 타액의 윤활작용 (8) 관절기능의 윤활학적 연구 (9) 인공골두와 인공관절의 윤활학적 연구8) 관절기능의 윤활학적 연구 (9) 인공골두와 인공관절의 윤활학적 연구