• 한국초지조사료학회지
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• 제42권3호
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• pp.169-175
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• 2022

This study aimed to examine the changes in dry matter yield and growth characteristics of alfalfa (Medicago sativa L.) in response to variations in sowing dates during the autumn season of 2021-22 in a dry paddy field of Chilbo-myeon, Jeongeup-si, Jeollabuk-do. Treatments comprised four sowing dates at 10-day intervals, i.e., October 8, October 18, October 28, and November 8, 2021. The winter survival rate of alfalfa showed a significant difference between different treatments but was at a satisfactory level for all (p<0.05). The winter survival rate for the fourth sowing date, a month later than the first sowing date, was approximately 11.7% lower than that for the first sowing date. The plant height ranged between 82.3-93.1 cm and 60.5-63.7 cm at the first and second harvest, respectively, smaller at the second harvest than at the first harvest. The total dry matter yield of alfalfa was the highest at 13,316 kg/ha for the first sowing date, and the later the sowing date, the lower the dry matter yield. The protein content of alfalfa ranged between 13.6-17.3% in the first harvest, lower than the standard alfalfa protein content of 20% or more. In relative feed value, the first sowing (Oct. 8) was the most significantly higher in the first harvest (p<0.05). These results suggest that the early and mid-October sowing dates are optimum for sowing alfalfa during autumn and result in improved plant growth, dry matter yield, protein content, and winter survival compared to those at later sowing dates. Therefore, dry paddy fields can be safely employed for alfalfa cultivation with sowing dates in early and mid-October during autumn.

• 대한의생명과학회지
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• 제10권4호
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• pp.435-445
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• 2004

The characteristics of the testis and the annual cycle of the seminiferous epithelium of the Miniopterus schreibersi fuliginosus were examined by optical microscopy. The testis weight and diameter of the seminiferous tubules were increased gradually from May to July, and the highest activity was observed in August. The size then decreased rapidly from October. Spermatogenesis began in May, peaked in August, and was suspended from October to April in the following year. Spermatocytogenesis were produced from May to July. Spermiogenesis occurred from August to September. In particular, immature spematogenic cells in the seminiferous tubules were engulfed by the phagocytosis of Sertoli cells in October. From November to April, the seminiferous tubuly contained only Sertoli cells and Ad spermatogonia. Therefore, the periodic changes in the seminiferous epithelium of M. S. fuliginosus suggest that a long hibernation is an adaptive strategy for the preservation of energy and the regulation of the breeding cycle.

• 한국의류학회지
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• 제8권3호
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• pp.73-79
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• 1984

The purpose of the study is to obtain the basic data of the proper clothing weight according to the subcutaneous fat thickness. This study was done in April and October, and the subjects were 295 male and female college students. Results were as follows: 1. In the case of female students in April, there was no correlation between the subcutaneous fat thickness and the total clothing weight. But there was low negative correlation between the subcutaneous fat thickness and the upper and under clothing weight. 2. In the case of female students in October, there was low negative correlation between the subcutaneous fat thickness and the total, upper, outer clothing weight. 3. In the case of male students in October, there was no correlation between the subcutaneous fat thickness ana the clothing weight.

• 생약학회지
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• 제17권2호
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• pp.123-128
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• 1986

The determination of berberine in Berberis koreana was examined by the high performance liquid chromatography using ${\mu}-Bondapak$ $C_{18}$ column and $CH_3CN/phosphate$ buffer (pH 5.2) (60/40) as a mobile phase. The seasonal variations of berberine contents in Berberis koreana were as follows; 1) In roots, the average berberine content was 0.94% with the highest level of 1.32% in October. 2) In stems, their average berberine content was about 0.1% and in March, April, October and November, the contents were relatively high. 3) In leaves, however, the content was as low as 0.005%. According to the experimental results obtained, we found that Berberis koreana roots can serve as the useful natural plant resources for the berberine and October is the optimal season for the collection.

• 동의생리병리학회지
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• 제19권5호
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• pp.1446-1449
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• 2005

This study was designed to evaluate the effect of oriental medicine therapy on a adenomyosis. The patient was admitted to the OBGY department of Wonkwang university in Gwang-Ju, from 20th August 2004 to 7th September 2004, from 20th September 2004 to 1 st October 2004, from 20th October 2004 to 27th October 2004. She was treated with herbal medication, herbal acupunture etc. After this treatment, improvement was seen in dysmenorrhea (low abdomen pain, low back pain), profuse menstruation, the amount of black blood clots. The study suggests that oriental medicine therapy is significantly effective in the treatment of adenomyosis.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2002년도 Proceedings of International Symposium on Remote Sensing
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• pp.7-11
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• 2002

This study introduces the first method that determines tropospheric ozone column directly from a space-based instrument. This method is based on the physical differences in the Total Ozone Mapping Spectrometer (TOMS) measurement as a function of its scan-angle geometry. Tropospheric ozone in September-October exhibits a broad enhancement over South America, the southern Atlantic Ocean, and western South Africa and a minimum over the central Pacific Ocean. Tropical tropospheric ozone south of the equator is higher than north of the equator in September-October, the southern burning season. Conversely, ozone north of the equator is higher in March, the northern burning season. Overall, the ozone over the southern tropics during September-October is significantly higher than over the northern tropics. Abnormally high tropospheric ozone occurs over the western Pacific Ocean during the El Nino season when the ozone amounts are as high as the ozone over the Africa.

• Advances in Energy Research
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• 제7권2호
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• pp.123-134
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• 2020

Photovoltaic systems are progressively attached importance and their installed capacity increases day by day because of their reliability, decremented installation and operating cost and simple construction structure. Generated power obtained from a photovoltaic system changes depending upon regional distinctness, and It can be estimated approximately by taking into consideration mean global radiation amount, temperature and humidity. However, there may be different regional negative or positive factors like dust, air pollution, desert powder which affect generated power. The best reliable data for a region can be obtained from the existing photovoltaic system in the region. For this purpose, a monitoring system for 1000W monocrystalline photovoltaic system constructed at Kocaeli University Uzunciftlik Nuh Cimento Vocational High Scholl is prepared. The installed monitoring system shows and records real values generated from the photovoltaic system and environmental data. In the study, Instantaneous data obtained from the monitoring system for October 2018 and 7th October 2018 is given within figures. Additionally, daily and monthly total energy productions of the photovoltaic system are given for October 2018 and date interval between July 2018 and March 2018, respectively.

• 한국식품저장유통학회지
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• 제24권6호
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• pp.849-856
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• 2017

본 연구는 까마중 열매의 수확시기에 따른 성분변화, 항산화효과 및 항염증 효과를 분석하여 최적 수확시기를 구명하였다. 까마중 열매의 유리당은 4가지가 검출되었으며, 유리당 중 fructose는 대체적으로 수확시기가 늦어짐에 따라 증가하였다. 까마중 열매의 주요 유기산은 malic acid와 acetic acid로 나타났으며, 총 유기산 함량은 10월 18일과 10월 25일에 수확한 까마중 열매들에서 높게 나타났다. 총 폴리페놀 함량은 10월 18일에 수확한 까마중 열매, 10월 11일에 수확한 까마중 열매 및 10월 25일에 수확한 까마중열매 순으로 높게 나타났다. 수확시기별 까마중 ethanol 추출물들의 항산화효과와 항염증효과 검정을 위하여 DPPH radical scavenging assay와 ABTS radical scavenging assay를 수행하였으며, 항염증 효과 측정을 위하여 lipopolysaccharide(LPS)로 염증을 유발시킨 RAW 264.7 cells을 NO 저해실험에 사용하였다. 항산화 효과와 항염증 효과는 10월 18일에 수확한 까마중 열매 ethanol 추출물에서 가장 높은 활성을 나타내었다. 10월 18일에 수확한 까마중 열매는 총 폴리페놀 함량, 항산화 효과 및 항염증 효과가 우수하였다. 까마중 열매의 수확시기에 따른 성분분석 및 생리활성 실험 결과, 까마중 열매의 최적 수확시기는 성숙 중기인 10월 18일과 10월 11일로 밝혀졌다.

• Journal of Astronomy and Space Sciences
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• 제26권4호
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• pp.467-478
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• 2009

2003년 10월 28일에 X18 급의 태양 플레어가 발생한 다음날인 10월 29일부터 10월 31일까지 할로윈 이벤트로 불리는 초대형 지자기 폭풍이 전 지구적으로 발생하였다. 할로윈 이벤트 기간 동안 한반도 상공 전리권 양상을 살펴보기 위해서 GPS 신틸레이션 S4 지수와 GPS 토모그래피 기법을 사용한 최대 전자밀도($NmF_2$)의 변화를 날짜별로 분석하였다. GPS 신호손실과 신틸레이션의 총 발생 횟수는 10월 28일과 29일이 각각 1,094회와 1,387회로 30일과 31일의 604회와 897회에 비해 높게 나타났다. 이는 지자기 폭풍이 반드시 전리권 교란을 발생하지 않음을 의미 한다. 그러므로 지자기 폭풍이 아닌 전리권 교란을 감시하기 위해서는 지자기 교란 지수보다 S4 지수가 유용할 것이다. 전리권 전자밀도 변화 양상은 GPS 토모그래피 기법으로 산출된 전리권 최대전자밀도($NmF_2$) 값을 날짜별로 분석하였다. 10월 28일에 가장 높은 $NmF_2$ 값을 보이고 있다. 이는 안양 이온존데에서 관측된 $NmF_2$ 값의 변화와 일치되는 경향을 보이며, 전자밀도가 낮은 30일과 31일에 GPS 신틸레이션과 신호손실 총 발생회수가 낮게 나타나는 양상을 보이고 있다. 결론적으로 지자기 폭풍과 GPS 신호 품절의 상관성은 나타나지 않고 있으나 전자멸도가 감 소할수록 GPS 신호품질은 양호한 것으로 나타나고 있다. 향후 장기관측 자료 분석을 통해 평상시와 지자기 폭풍 기간 동안의 GPS 신호품질과 전자멸도 변화에 대해 연구가 진행될 것이다.

• Animal cells and systems
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• 제1권3호
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• pp.435-445
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• 1997

Specimens of Bosmina longirostris collected from various freshwater habitats of 84 localities in South Korea from October 1981 to August 1997 were examined, and seasonal changes of the cladoceran populations in Late Kwangjuho from October 1995 to August 1977 were analysed. In this paper, B. longirostris in Korea was redescribed and figured, with a discussion of morphological characteristics. Some ecological features of the species were noted.