• Journal of Sericultural and Entomological Science
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• v.48 no.2
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• pp.61-67
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• 2006

We investigated fertilization rate, hatchability rate, pupation rate and cocoon quality etc to selecting good characteristics of the wild silkmoth, Antheraea yamamai using method of indoor-and outdoor-rearing. As results of indoor rearing, the healthiness of A. yamamai was better in light green colour strain than that of dark green colour strain, but cocoon quality was better in dark green colour strain. There was a little effect to selecting major characteristics in grade of A, B and C strain classified with cocoon weight. $F_1$ hybrid was lower in fertilization rate and hatchability rate than parent, but higher in pupation rate and cocoon quality. There was no effect of heterosis in $F_2$ hybrid. In case of outdoor rearing, mortality rate was lower than that of indoor rearing but missing larva was higher. In addition, outdoor rearing is higher that indoor rearing in cocoon weight, cocoon shell weight and cocoon shell rate.

• Journal of Conservation Science
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• v.20
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• pp.31-42
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• 2007

The archaeological site of Nambuk-dong, Yongyu Island, Incheon which goes back to the Neolithic making it difficult to identify character of site, To get information for identifying utility and character of Open-Air Hearths within the finds, an organic residues analysis was conducted on soil and stone sample, sterol was analysis to determine the originality of archaeological sample, then percentage of fatty acid was identify the species of sample. As a result, it is assumed that No. 9, 10, 12 finds once had shellfish-related materials remain, No. 32 find seemed to have animal materials, No. 42, 43 finds were related to plant. In conclusion, it seems that open-air hearths of Yongyu Island had utility mainly related to making seafood.

• The Journal of Engineering Geology
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• v.4 no.3
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• pp.321-331
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• 1994

Environmental geologic maps were produced on the cheong-Ju area using GIS technique. They are GIS maps on land management and regional land use planning. In the last year, the model of environmental geologic map was established, and the digital database was constructed by environmental and geotechnical data collected form various sources. The special maps for environmental geologic study were also pnoduced ; landslide hazard and risk map, cut & fill map, actual run-off map and engineering geological map. The maps are secondary models (sub-model) in order to create final environmental geologic map. Finally, Environmental Geologic Unit(EGU) was evaluated for regional land use planning and land management by EGIS(Environmental Geologic Inforafion System). This unit is very important in order to assess environmental geologic impact on large construction works and detailed road design etc.

• Korean Journal of Plant Taxonomy
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• v.45 no.3
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• pp.227-238
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• 2015

Korean species within the genus Astragalus have been taxonomically revised based on herbarium specimens and field examinations. In this study, we recognized the following eight species and one variety: A. laxmannii subsp. laxmannii, A. dahuricus, A. sikokianus, A. uliginosus, A. schelichowii, A. setsureianus, A. mongholicus var. dahuricus, A. mongholicus var. nakaianus, and A. sinicus. Based on recent taxonomic progress with this genus, their scientific names are being reconsidered. A Korean plant, previously recorded as A. adsurgens, is included in the polymorphic taxa A. laxmannii subsp. laxmannii. Astragalus koraiensis was initially described from Gangwon Province as an endemic species, and it is now regarded as conspecific with A. sikokianus. Furthermore, the taxonomic entities and their morphological characteristics have been clarified for A. schelichowii and A. setsureianus, both of which are not well known in Korea. We provide a key to these species and enumerate their synonymies and taxonomic notes.

• Journal of The Korean Association For Science Education
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• v.15 no.4
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• pp.487-494
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• 1995

본 연구는 우리 나라의 성인들이 자신의 초중등 학교 시절 경험하였던 학교 과학교육에 대해 어떤 종류의 즐거운 혹은 괴로운 기억들을 현재까지 갖고 있는가를 탐색하였다. 성인들은 오래 전 경험하였던 매우 인상적인 활동이나 장면들을 통해 학교 과학교육을 기억할 것이고, 이러한 기억은 그들의 학교 과학교육에 대한 전반적인 태도에 결정적인 역할을 할 것이다. 따라서 성인들의 학교 과학교육에 대한 이러한 기억들을 살펴보면, 학교 과학교육의 특징을 이해하고 장기적으로 학교 과학교육을 보다 즐거운 경험의 장으로 만드는 데 도움이 될 것이다. 본 연구는 소규모의 설문 조사를 통해 이루어졌으며, 설문 대상은 대구지역의 30-50대 성인 88명이었다. 설문은 현재 과학과 관련된 특정한 직업을 갖고 있지 않은 사람을 대상으로 하였으며, 설문에서 응답자들은 자신들의 초중등 학교 과학교육을 받으면서 가장 즐거웠던 기억과 가장 괴로웠던 기억이 구체적으로 무엇이며 이러한 경험은 초중고 어느 때이었는가를 응답하였다. 성인들이 가장 즐거웠던 기억으로 지적한 것은 실험 실습 활동(65.9%), 야외학습 활동(19.3%) 등으로 전통적인 교실수업 이외의 활동이 약 86%로 나타났다. 그리고 효과적인 교실수업, 교사의 인성적 특징, 과학전람회 참가 등의 경험을 언급한 경우도 부분적으로 있었다. 성인들이 가장 괴로웠던 기억으로 지적한 것은 따분한 교실수업(51.1%), 실험 실습 활동의 부정적인 측면(28.4%) 등으로 나타났으며, 부분적으로 과다한 숙제, 교사의 인성적 특징, 야외학습 활동, 과학수업의 부재 등을 지적한 경우도 있었다. 또한 전체적으로 즐거웠던 기억은 국민학교 시절의 경험에서(56.8%), 반면 괴로웠던 기억은 고등학교 시절의 경험에서(44.3%) 많이 나타났다. 특히, "개구리 해부 실험" 의 경우, 7명이 가장 즐거웠던 기억으로 8명은 가장 괴로웠던 기억으로 언급하여 매우 상반된 견해를 나타냈다. 따라서 동일한 활동일지라도 학생들에게는 매우 상반된 경험으로 작용하게 되며, 이 경우 생명체에 대한 과학실험의 윤리적 문제와 이에 대한 갈등을 분명하게 드러냈다.

• Korean journal of applied entomology
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• v.36 no.3
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• pp.237-242
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• 1997

Comparative studies on suppression possibility with three phytoseiid mite species (An.thly,seiu,sw omersleyi Schicha. A. ,fidIrrc~i.Gs arman and T\ulcornerphlorlrotiiu.s oc~c~idetitaliNs esbit) to the two-spotted spider mite (Te~trrrt~yc.Iir~l~l\ulcorner.i\c .(re Kwh) on kidney bean leaves in field and greenhouse were carried out. In the field experiments with the initial prey -predator ratio of 4 : 1. I0 : I and 20: I . A. ,firllrrcis suppressed successfully the prey populations at all three ratios 17 days after the initial infestation. A. wornc,r-;leyi \uppressed the prey population only at the ratio of 4 : 1, while T. oc~c~ideritcr1iw.s as unable to suppress the prey population at all tested ratios. In the greenhouse experiments with the initial prey-predator ratio of 10: 1, A. jil1ltrci.s could suppress the prey population continuously during the infestation period. A. ~~otnc~r,slceoyuil d suppress the prey population for 13 days after the initial infestation, while T. occie1mttrli.s could suppress the prey population for 8 - 23 days after the initial infestation.

• Journal of the Korean association of regional geographers
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• v.7 no.4
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• pp.93-104
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• 2001

The purpose of this study is to analyze the geomorphic characteristics of two erosional basins with same geological conditions. The study areas, the Okcheon basin ($36^{\circ}\;14'{\sim}36^{\circ}\;20'\;N,\;127^{\circ}\;32'\;30"{\sim}127^{\circ}\;37'\;37"\;E$) and Jincheon basin($36^{\circ}\;48'{\sim}37^{\circ}\;03'\;N,\;127^{\circ}\;22'{\sim}127^{\circ}\;36'\;E$), are located on middle part of the Geum river. The geological maps, a summit level map, and a drainage network map are created and analyzed the geomorphic characteristics. The main results are as follows: 1) The Okcheon basin and Jincheon basin are typical erosional basin, in which basin floor are composed of granite. 2) The formation of Okcheon basin and Jincheon basin resulted from differencial erosion after upwarping. 3) Okcheon basin and Jincheon basin are available for specialized agriculture area and a site of new settlement with satisfactory to accessibility.

• The Korean Journal of Pesticide Science
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• v.8 no.4
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• pp.347-352
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• 2004

Susceptibility of Curculio sikkimensis adults to 39 commercial insecticides were evaluated by body dipping method, Among them sixteen insecticides of chlorpyrifos, fenitrothion, fiponil, phenthoate, benfuracarb, thiodicaib, carbosulfan, bifenthrin, cypermethrin, $\lambda$-cyhalothrin, deltamethrin, clothianidin, acetamiprid+diflubenzuron, etofenpox+diazinon, esfenvalerate+fenitrothion and furathiocarb +diflubenzuron showed 100% mortality. Insecticides with over 80% residual effect at 1 day after treatment were phenthoate, benfuracarb and thiodicarb (95.0, 82.5, and 85.0%, respectively). However, after that, it was dropped rapidly. Other insecticides showed low residual effect. In the control efficacy test on C. sikkimensis, insecticides with over 90% control values at 1 day after treatment were phenthoate, thiodicarb, fipronil, acetamiprid+bifenthrin and furathiocarb+diflubenzuron. However, all insecticides from 2 days after treatment were over 90%.

• The Journal of Engineering Geology
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• v.24 no.4
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• pp.473-486
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• 2014

The objective of this study is to produce the rock slope hazard map on the Mt. Hwangryeong located at center of Busan Metropolitan City for evaluating the rock slope hazard susceptibility. The Mt. Hwangryoeng is located between Dongrae and Ilkwang faults and consists of various rocks such as sedimentary rock, andesitic volcanic rock, andesite, gabbro and granitic rocks. Thematic maps were carried out using ArcGIS for Database including the orientations and density of joints, strength of rock constructed through the field survey and results from previous studies. Also, rock slope hazard susceptibility for the Mt. Hwangryoeng area was studied using empirical method through checklists proposed by NDMI (National Disaster Management Institute). Results from using the empirical method indicated that rock slopes are evaluated from very stable to stable, but moderate stability has been partially presented along the edge of the mountain area.

• Journal of the Korean association of regional geographers
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• v.9 no.3
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• pp.395-409
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• 2003

In this study the meaning and necessity for self-regulation in managing and organizing the national curriculum is researched in order to reflect the reality that the tide of regionalization appears apparently with globalism. Hwacheon is chosen and applied as an example region for selecting and forming a new learning content in geography education and teaching and learning that content. The regional geography should be learned in high schools according to the approach of regional textbooks being made and used now in primary and middle schools, and the contents of textbooks should be properly reorganized in accordance with the students' school ages rather than organized simply with enumerating geographic facts in a row. And the contents should be organized centering on the learners' daily living sphere. In addition, teaching-learning method should be taken into consideration according to the scale of the regions. Consequently, in this study small-scaled area was chosen as a learning content, laying stress on daily lives within the living zone, and therefore field work is considered as a learning method.