• 제목/요약/키워드: collection period

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북한산 국립공원의 고형 폐기물에 관한 연구 (A Study on the solid waste of Buk Han Mt National Park)

  • 도갑수;장일영;김광진
    • 기술사
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    • 제19권1호
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    • pp.12-24
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    • 1986
  • The number of visiters to Bukhan Mt. national park, generation quantity of solid waste and collection system were researched to consider a counterplan for the pollution control of the national park and study for developing the effective treatment of solid waste was tried through the proximate analysis of each component containing. Results obtained in this study were summerized as follows; The great part of visitors go on an excursion to the Bukhan Mt. national park during July and August and also, the solid waste was generated nearly a half of the total amount at the same period. The major collection facilities in the national park were waste basket and incineration box. But the incineration box was too large in volume and very far in distance, and its collection period was irregular, so it was cause to the congestion of solid waste and bad smell and dirty. Therefore, to complete collection of solid waste, we must set up the waste basket which able to find within 40~50m from the origination place of solid waste and induce the visitors to throw the solid waste. It was obtained as moisture content: 48.5 wt%, volatile solid: 28.4wt%, fixed solid: 23.1 wt%, lower heating value: 1,320kca1/kg from experimental analysis of solid waste. According to this analysis, the incineration operation is possible, but the generation quantity of solid waste was too small to construct incineration plant for heat recovery. It was found that it is suitable for the aerobic composting by mixing with the night soil which generate in the national park after the recovery of resources such as metals, glasses and plastics.

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마라리아 모개문 Anopheles sinensis Wiedmann 의 생태학적 조사 (Bionomics of Anopheles sinensis Wiedmann in Western Plain Area in Korea)

  • 홍한기
    • 한국동물학회지
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    • 제10권2호
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    • pp.18-22
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    • 1967
  • The routine entomological investigations were carried out in the areas of Kaejeon-Myon, OkkuGun, Cholla Pukdo province in 1964 and Sinchang-Myon, Asan Gun, Chungchong Namdo province in 1965, for the better understanding of the behavior of the anpheline mosquitoes especially of the population density , resting , feedign, and breeding habits. The results are as follows : 1. During the investigation , three species of anopheline mosquitoes were recorded ; Anopheles sinensis Wiedmann 1825, A, sineroides Yamada 1935, and A. yatsushiroensis Miyazaki 1951. A . yatsushiroensis Myiyasaki 1951, so far only recorded in Japan, was recorded for the first time in Korea in 1964 ; the site was Kaejong Myon, Okku Gun, Cholla Pukdo province. 2. Anopheles mosquitoes begin to appear from the middle of April and disappear in October. The date of mosquitoes collected by resting place collection in cow shed are three weeks ahead to the night time cow biting collection. 3. Resting places of anopheline mosquitoes are mainly in cow shed and outdoors which provides high humidity and shadow. 4. The population density of a. sinensis sows a peak in late June and early July in cow shed and by cow biting collection respectively, and another small peak in late August and early September. 5, . the biting activity at night is throughout the night from dusk to dawn, sharply decreasing just before dawn. The peak period was different in each months, 2100-2200 hours in June, 2300-2400 in July , 0300-0400 in August , and 2300-2400 in September. 6. The minimum temperature required for the mosquito's biting activity is 15 $^{\circ}C$ and the optimum is between 24-$25^{\circ}C$ : over $25^{\circ}C$ the activity is decreased. 7.A , sinensis appeared to be zoophilic in Sinchang area but 13 times anthrophophilic in Kaejong area than the former. 8. the light attraction of a. sinensis is significantly low in middle June and early August. The parous rate of A. sinensis caught by cow biting collection appeared higher after midnight (2400-0300 hours) with no relation to the peak period of biting activity by month.

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화가(和歌)와 한시(漢詩)의 혼효(混淆) 양상과 특징 (Aspects and Characteristics of the Combination(混淆) of Waka(和歌) and Chinese Poetry(漢詩))

  • 최귀묵
    • 고전문학과교육
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    • 제39호
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    • pp.221-246
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    • 2018
  • 이 글에서 필자는 대략 10~17세기에 걸쳐서 일본의 상층 귀족이 화가(和歌)와 한시(漢詩)를 '혼효(混淆)'하여 창안해서 향유한 세 가지 양식의 양상과 특징을 살펴보았다. 세 가지 양식이라고 한 것은 '화한낭영(和漢朗詠)', '시가합(詩歌合)', 그리고 '연구연가(聯句連歌)'를 가리킨다. '화한낭영'은 10세기에, '시가합'은 12세기에, '연구연가'는 14세기에 각각 등장했으며, 그 후 일본 문학사에 지속적으로 영향을 끼쳤다. 화한혼효가 진행되면서 화가와 한시의 거리가 점차 가까워지더니 마침내 둘이 결합해서 한 작품을 이루게 되었다. 즉 화가와 한시는, 낭영하기에 적합한 작품이라고 해서 한데 모였고(화한낭영) 경합을 위해 작품 대 작품으로 맞섰으며(시가합) 종국에는 장시(長詩)를 구성하는 행으로 갈마드는 데까지 이르렀다(연구연가). 화한혼효는 자국어 노래를 한시에 손색이 없게 만들고자 하는, 중세 동아시아 문학사의 공통된 움직임의 일본 버전이라고 말할 수 있다. 한편 한시가 화가와 병렬, 경합 교대, 결합되면서 어떤 위상 변화가 나타났는지 확인함으로써 세 가지 양식이 존재한 시기의 한시에 대한 일본인의 태도, 거기에 상응해서 발현된 일본 한시의 특징에 대해서도 논의할 단서를 발견할 수 있다. '나'가 아닌 '좌중'의 기호, 시인의 내면이 아닌 시대가 숭상하는 내용과 표현, 자기표현이라는 서정시의 본령이 아닌 즐거운 오락을 위한 수단이라는 점이 중세 전 후기 일본 한시의 특징이고, 이러한 특징은 일본 한문학사의 저층을 흐르는 흐름이었다고 할 수 있다. 필자는 동아시아 문학사의 관점에서 중세 시기 일본 한문학사를 논할 실마리가 여기에 있다고 생각한다.

광폭 전기집진기의 집진특성에 판한 연구 - II. 펄스 하전 파형의 영향 - (A Study on the Collection Characteristics of a Wide Plate-Spacing Electrostatic Precipitator -II. Effect of Wave Form of Pulse Energization -)

  • 김용진;하병길;정상현;홍원석;하대홍;유주식
    • 설비공학논문집
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    • 제13권11호
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    • pp.1059-1064
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    • 2001
  • This study Investigates the effect of the wave form of pulse energization on the collection characteristics of a wide plate spacing electrostatic precipitator. For the semi-pulse energization, the peak current and voltage of the energization increases with increase of the pulse period, and the corona current increases, as pulse ratio decreases. For the micro-pulse energization, the corona current increases with increase of the pulse voltage. The collection efficiency of semi-pulse and micro-pulse energization is larger than that of DC charge.

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존경각장서(尊經閣藏書)에 관한 일고찰(一考察) (The Collection of Jon Gyung Gak)

  • 이춘희
    • 한국비블리아학회지
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    • 제1권1호
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    • pp.15-30
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    • 1972
  • Jon Gyunk Gak established in 1475 was the library of Sung Kyun Kwan which was the only university in the period of Yi Dynasty. For the study of library histories of Korea, particularly the libraries of high learning institutions the Jon Gyung Gak library acquires a greater importance. The collection of Jon Gyung Gak consisted mainly of Chinese classics such as the works of Confucius, Mencius, or the books about histories which were the textbooks of students in those days. But the books about Laoism or Buddhism were strictly forbiddened, and also books like medicine or agriculture pertaining to technical sciences were disregarded. The Jon Gyung Gak was destroyed by fire in 1514 and suffered severely again by the 1m Chin War in 1590's, but the library had been made constant efforts to maintain its collections for the performance of educational functions. This paper gives special emphasis to analyzing the collection of Jon Gyung Gak by its chronological order.

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Effect of Seed Collection Stage and Temperature on Germination of Deutzia paniculata Nakai, the Korea Native Species

  • Jeong, Mi Jin;Choi, Go Eun;Ghimire, Balkrishna;Lee, Ha Yan;Jung, Ji Young;Choi, Myung Suk;Ku, Ja Jung;Lee, Kyung Mee;Lee, Cheul Ho;Suh, Gang Uk;Son, Sung Won
    • 원예과학기술지
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    • 제34권3호
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    • pp.372-382
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    • 2016
  • In this study, we investigated the effect of seed collection stage and alternating temperature on the germination of Deutzia paniculata (Hydrangeaceae). The seeds were collected from naturally growing D. paniculata populations in Mt. Palgong, Gyeonsangbuk-do, Korea every two weeks over a three month period from August through October, 2014, totaling five collections. We examined seed characteristics such as seed size (length and width) and weight, and germination percentages for each collection stage under four different germination temperature regimes. We also examined germination after 30 and 60 days of cold moist stratification. Each collection phase had a different germination percentage and the lowest germination percentage was observed in the seeds from phase I (average GP of 15.7%). The germination percentage was similar at the later collection phases and in the higher temperatures suggesting that later collection times and higher temperatures are optimal for D. paniculata germination. We found that the optimum collection stage with high viability and germination percentage of for D. paniculata was during the middle of the September.

'매향' 딸기 삽목묘와 유인묘의 노동 기간, 작업 시간 및 생육 비교 (Comparison of Labor Period, Work Time, and Seedling Growth in Cutting and Pinning Transplants on 'Maehyang' Strawberry)

  • 황희성;정현우;강재현;황승재
    • 생물환경조절학회지
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    • 제30권4호
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    • pp.257-262
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    • 2021
  • 유인 방법은 딸기 묘를 생산하는 전통적인 방법이다. 그러나 딸기 묘를 유인하여 번식하는 방법은 오랜 노동시간이 있어야 하는 노동 집약적인 방법이다. 삽목 방법은 상대적으로 유인 방법에 비해 노동 기간과 작업 시간이 짧으므로 유인의 효과적인 대안으로 주목되어왔다. 이 연구는 유인과 삽목 사이의 노동 기간, 작업 시간 및 묘의 생육을 조사하기 위해 수행되었다. '매향' 딸기는 두 개 동의 딸기 육묘용 유인 온실과 삽목 온실에서 각각 재배되었다. 유인 방법(유인 작업, 모주 제거, 자묘 간 분리) 및 삽목 방법(삽수 채묘, 저장 전 처리, 삽목 작업)에 대한 주요 작업 시간을 측정했으며, 유인은 158일 동안 6개의 작업이 필요하며, 삽목은 113일 동안 4개의 작업이 필요했다. 유인은 삽목보다 작업 시간이 더 많이 필요했다. 유인과 삽목묘 육묘 방법에 따른 유의적인 차이가 없었다. 이러한 결과는 묘소질의 손실 없이 육묘 동안 유인 방법보다 삽목 방법이 더 많은 노동 기간과 작업 시간을 절약할 수 있음을 의미한다.

조선시대 여성 폐면용 쓰개의 특징 - 박물관 유물을 중심으로 - (The Characteristic of Women's Veils in Chosun Dynasty Period - Focusing on the Museum Collection -)

  • 류보영;임상임
    • 한국의류학회지
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    • 제26권10호
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    • pp.1424-1435
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    • 2002
  • This study is about women's veils from Chosen period housed in various museums and see how they reflect the escalating inequality between the two sexes based on Confucianism and its social ramifications including the strict rules that kept women from freely communicating or staying in same quarters with men from tender age. I first visited various museums to see what kind of veils they had in their collections and then looked at reproductions, museum catalogues, and other studies to get a better understanding of the designs, colors, and fabrics of the veils in each collection and came to following conclusions:. 1. I looked at 26 veils of 7 different sues both in person and in museum catalogues, and they included a Neouls,3 Myunsas, l2Jahngots,4 Chuneuis,1 Sahkgat 3Junmos, and 1 Garima. Various documents attest to the existence of one more style of veil,1. e. skirt-shaped veil, but there was no specimen of the type. 2. Museums had various types of veils for women, but most of them dated from late Chosun period. 3. Female veils in Chosun period had dearly-defined characteristics depending on their wearers. Each type had its own fabric color, and form, so one could tell the status of the wearer just by looking at it 4. The veils that I found at museums around the country had following characteristics: . Neoul was worn by high-class women and it covered up the face better than other types of veils. Myunsa was also caned Myunsapo, and it featured brilliant gold foils to mark the salted status of the wearer. Jahngot was originally a robe for both sexes but it turned into a type of veil for low-class females in late am period and there were more Jangots in museum collections than my other type of veils. Chuneui has various styles and it has a cotton lining so low-class women wore it to both cover the face and to stay worn Sahkgat was worn by low-class women for its convenience. Junmo was elaborately decorated and showy, and it was worn by courtesans. Garima was worn by courtesans or professional women in medicine, and unlike other type of veils, it showed the face of the wearer.

의궤도(儀軌圖)의 회화사적(繪畵史的) 특징(特徵)과 그에 나타난 관중복식(官中服飾) (A Study on the characteristics of the EUI-GUE DO and the costumes of the Royale Family)

  • 유송옥
    • 복식
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    • 제10권
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    • pp.5-16
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    • 1986
  • This dissertation is a study of the costume of the Yi dynasty by means of an investigation of the Ka-rae-do-gam-Eui-gue Do(嘉禮都監儀軌圖: a collection of paintings of the royal wedding ceremonies and processions issued by the royal court) and the Jung-ri Eui-gue Do(整理儀軌圖: a collection of a series of paintings showing the whole process of the royal courtesies and ceremonies on the occasion of the king's visit to Hyun-yoong Won in Hwa-sung in 1975年). The Yi dynasty period is roughly divided into two parts. The first period extends from 1392, in which the reign of the dynasty started, to 1600, when Imjin Waeran(the Japanese Invasion of Korea) ended; the second period lasts from 1600 to the last day of the dynasty in 1910. Of the "Eui-gue Do"(儀軌圖: paintings of the royal ceremonies) which were made in the first period of the dynasty, there is no extant example, the reference to which is found only in records. However, the examples of the "Eui-gue Do" belonging to the second period remain abundant in number, together with the detailed accounts about them. The followings are the conclusions deduced from this study, which tries to illuminate the pictorial characteristics as well as the traits of costume manifested in the above-mentioned two groups of paintings. Most of the costume seen in the Ka-rae-do-gam Eui-gue and the Jung-ri Eui-gue were not clad in accordance with the wearer's individual desire or taste, but in strict conformity with the norm and sense of order in the society based on the Cosfucian political and ethical principles.

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Identification of SNPs Related to 19 Phenotypic Traits Using Genome-wide Association Study (GWAS) Approach in Korean Wheat Mini-core Collection

  • Yuna Kang;Yeonjun Sung;Seonghyeon Kim;Changsoo Kim
    • 한국작물학회:학술대회논문집
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    • 한국작물학회 2020년도 춘계학술대회
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    • pp.120-120
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    • 2020
  • Based on the simple sequence repeat (SSR) marker, a Korean wheat core collection were established with 616 wheat accessions. Among them, the SNP genotyping for the entire genome was performed using DNA chip array to clarify the whole genome SNP profiles. Consequently, a total of 35,143 SNPs were found and we re-established a mini-core collection with 247 accessions. Population diversity and phylogenetic analysis revealed genetic diversity and relationships from the mini core set. In addition, genome-wide association study (GWAS) was performed on 19 phenotypic traits; ear type, awn length, culm length, ear length, awn color, seed coat color, culm color, ear color, loading, leaf length, leaf width, seeding stand, cold damage, weight, auricle, plant type, heading stage, maturation period, upright habit, and degree of flag leaf. The GWAS was performed using the fixed and random model circulating probability unification (FarmCPU), which identified 14 to 258 SNP loci related to 19 phenotypic traits. Our study indicates that this Korean wheat mini-core collection is a set of germplasm useful for basic and applied research with the aim of understanding and exploiting the genetic diversity of Korean wheat varieties.

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