• Journal of the Korean earth science society
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• v.27 no.3
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• pp.313-327
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• 2006

This study investigated the geochernical characteristics of Mn scale formed in groundwater wells at the Damyang area. The composition of Mn scale consists mainly of MnO and $SiO_2$. The content of Mn ranges from56.61wt.% to 68.69wt.%, and $SiO_2$ content ranges from 1.56wt.% to 10.45wt.%. The contents of Mo and Ba in Mn scale increased with increased depth; whereas, the content of Zn and Pb decreased with increased depth. Birnessite, quartz and feldspars were identified in Mn scales using x-ray powder diffraction studies. The IR absorption bands for Mn scales show major absorption band due to OH stretching, adsorbed molecular water, and birnessite stretching, respectively. In the SEM and EDS analysis, the Mn scale consists of botryoidal, spherical, spherulite, and empty straw structure. Those structure may be precipitated simply due to oversaturation with concentrated Mn content or may be formed through biogenic precipitation by Lepthothrix discophora. Under microanalysis using EDS on those structure surface of Mn scales, the Mn atomic percent range from 28 to 44, and such elements revealed the presence of Si, K, Na, Ca, Cl, Cu, Zn, and Ba.

• Journal of the Korean Geographical Society
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• v.40 no.1 s.106
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• pp.78-95
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• 2005

The purpose of this paper is to analyze industrial and innovation networks of long-live area of Honam Region and to suggest a policy direction for regional development of rural areas where have been neglected in the knowledge-based information society. Four counties (Sunchang, Damyang, Gokseong, and Gurye) in the Southwestern region of Korea are regarded as long-live belt of Korea. Production and innovation networks :Ire analyzed based on intensive surveys of firms in the belt. Major findings from the surveys are as follows. First, there are considerably strong local networks of production firms in terms of supply of input materials and labor. There are strong backward industrial linkages of the production firms with agricultural activities and considerable forward linkages with tourism industry. In addition, Internet is becoming a useful tool for sales of the new products. Second, the analysis of the innovation networks in the long-live area suggests the development of 'virtual innovation cluster' in the era of knowledge-based information society. The results imply that this innovation networks can be developed as a virtual innovation cluster in the rural areas, which can be the basis for the development of rural innovation systems.

• Journal of Korean Society of Rural Planning
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• v.24 no.1
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• pp.11-19
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• 2018

The purpose of this study was to analyze the participant's perception of importance and performance of rural tourism network products that are linked with local resources, and propose the implications on the development direction of such products. The focus is on helping rural tourism network products acquire competencies that will help them evolve their business and differentiate themselves. To reach these objectives, a survey was designed through theoretical research on the motive of rural tourism and on agritourism networks. The survey was carried out on visitors to rural communities that produce rural tourism network products from November, 2015, to January, 2016 using 165 copies of a questionnaire after distributing 175 copies. The first quadrant continue and sustain', an area of high importance and high performance, included trial program components, stress reduction, getting away from daily routines, gaining new experiences, comfort, experiencing rural culture, travel expenses, and making memories with family. The second quadrant 'requires intensive improvement', an area of high importance but low performance, included having diverse trial programs, refreshment, experiencing agriculture, and education of children. Therefore, continuous interest is required for the area of 'maintenance' just as it is for activating educational farms in rural communities and a more fundamental improvement in the operation should be made for the area of 'intensive management'.

• Korean Journal of Human Ecology
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• v.18 no.1
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• pp.13-27
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• 2009

This study purposed to survey grandparents' difficulties in parenting their grand children at grandparent-grandchild households in South Jeolla rural areas. This study was conducted through in-depth interviews from January to October, 2008. The subjects were eight grandparents living with their grandchildren in Boseong-gun, Gangjin-gun, Yeonggwang-gun, Hampyeong-gun, Haenam-gun and Damyang-gun in South Jeolla province. The results are as follows: the grandparents' difficulties in parenting grandchildren are divided into four categories of variable factors: 'Difficulties related to grandparents themselves'; 'Difficulties related to their grandchildren'; 'Difficulties related to early childhood education institution: and 'Difficulties related to their grandchildren's peer group or surrounding people'. The main difficulties in these categories are 'poor, aging and weak conditions of grandparents: 'conflicts in their parenting attitude to have compassion on grandchildren: 'grandparents' not enough educational support to grandchildren due to their ignorance about today's education system: and 'anxiety about the possibility for their grandchildren to be abandoned once again.' These results can be used as a piece of basic information for desirable supports to grandparent-grandchild households.

• Korean Journal of Organic Agriculture
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• v.26 no.3
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• pp.381-391
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• 2018

This study was carried out to determine whether cage traps can be used to capture wild boars successfully, and to assess their response to different bait materials and the number of wild boars caught. Steel cage-traps ($4.0m{\times}1.5m{\times}1.2m$, $L{\times}W{\times}H$) were installed at two sites in Damyang County and at one site in Sunchang County, South Korea. To identify preferred bait-diet, baits were prepared with dry corn and fermented sour corn and placed in equal amounts at the sites close to wild boar pads at 200 m intervals. Before selecting trap locations where sufficient activity was observed, pre-baiting was undertaken and steel-framed traps were installed with gates open. Preference for bait materials was not clearly defined. After providing the bait for the first time, the number of days until wild boars ate all the food were counted. In the Damyang and Youngam areas, where hunting was allowed, total bait consumption took 6 to 12 days; in contrast, in the Sunchang area, where no hunting took place, total food consumption took only 5 days. In addition, after pre-baiting with the mixture of dry and sour corn for diet for about 8.7 days and then opening the trap gates for 3 more days, 13.7 days were necessary to catch 4.3 wild boars per trap. These results suggest that hunting intensity around trapping places was an important factor in determining the success of the traps.

• Journal of the Korean association of regional geographers
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• v.7 no.3
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• pp.44-58
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• 2001

The purpose of this study is to investigate the potential water condition of Honam region according to water budget analysis. For this purpose, the eight regions (Suncheon, Gwangju, Jhangheung, Damyang, Mokpo, Yosu, Huksando, Namwon) are selected as study area. The result is as follows. (1) The water surplus indicating the potential water condition is ordered as Yosu, Sunchon, Changhung, Namwon, Damyang, Huksando, Kwangju, Mokpo. So the potential water condition of Kwangju and Mokpo is worst among study regions. (2) The high water surplus region is corresponded to high precipitation and low actual evapotranspiration legions. (3) The potential water condition is to agree with several facts about the water resource condition of Honam region. For example, large scale dam of Honam region has been constructed for Kwangju and Mokpo city. This fact indicates that the potential water condition calculated by water budget analysis is corresponded to actual water resource condition. (4) Consequently, the water budget analysis is effective method for investigating the actual water condition and establishing the water resource management of specific regions.

• Elastomers and Composites
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• v.34 no.3
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• pp.222-228
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• 1999

In this work, the effect of chemical treatments on the carbon blacks as-received has been studied in the context of surface, adsorption, microstructure properties, and physical surface free energetics. As an experimental result, the basic chemical treatment leads to an increase in the either dispersive or specific component without significant change the pH and specific surface area. While, acidic chemical treatment do significantly change the surface and adsorption properties, and microstructures of the carbon blacks. In particular, the result given by basic chemical treatment shows an increase of the London dispersive component of the surface free energy which is a major parameter in evaluating the dispersion or specific surface area of the carbon blacks studied. This is probably a major role in evaluating the dispersion the carbon blacks, which are reinforced in elastomer matrix in a composite system.

• Journal of the Korean Society of Clothing and Textiles
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• v.32 no.10
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• pp.1584-1594
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• 2008

This study was to research the characteristics of the body shape of Korean woman farmers by the major crops. Four hundred ninety-five Korean woman farmers from 9 different area such as Kumi, Damyang, Iksan, Injae, Chungju, Choongju, Haman, Whasung, and Whasoon volunteered for this study. Their major crops were the rice, the pepper, the water melon, the strawberry, the wild rocambole, the sweet persimmon, the grapes, the mushroom, and the chrysanthemums. Twelve body angles were measured from archived the somatotype photographs of the front, the side, and the back. Questionnaires of SF-36 and the farmer's symptom, and the farm-work related movements were surveyed. The results were as follows; 1. Farmers had lower health levels in physical role limit, pain, vitality, and physical function than other occupational workers. 2. Most farmers acted the high-risk ergonomics motions when they worked in the farm. 3. There were significantly different on the both shoulder angles, the hip tangential line slope, the hip breadth angel, in frontal ankle-knee angle, the bending back angle, the dropping breast slope, the abdominis media angle, under the abdominis media angle, the glutea angle, under the glutea angle, and the sideward knee angle(p<.05). 4. Farmers cultivating the low plants such as the water melon, the strawberry, and the wild rocambole showed more banded vertebralis and side knee angles. Farmers cultivating the red pepper showed the dropping the left shoulder and O shape legs. Farmers cultivating the fruit trees such as the sweet persimmon and the grapes showed the less banded side knee angles than other farmer groups. 5. On comparing the same age, farmers showed the older's body shape in earlier and much more than the old living in the city.

• Journal of the Korean Wood Science and Technology
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• v.15 no.3
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• pp.14-23
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• 1987

This study was carried out to investigate the anatomical characteristics, the radial and axial variation of the cell dimension and bulk density for four bamboo species used as the major material of bamboo products in Korea; Phyllostachys(P.bambusoides, P.edulis, P.nigra var.henonis, and Pnigra). The results obtained were summarized as follows; 1) In the outer part of culm, the mophological difference of cell diameter and distribution were not acknowledged. However, gum-like substance was occurred In the epidermis, hypodermis, cortex and metaxylem vessel of P.nigra, while it was occured only in the metaxylem vessel of P.edulis. 2) The protoxylem vessel in the central zone of culm-wall could be in the two types; the first type consisted of 4-5 small cell pieces occurred in P.edulis and P.nigra var. henonis, the second type of 1-2 large cell pieces in P.bambusoides and P.nigra. And transition of cell diameter from the vascular bundle sheath to the ground tissue was gradually enlarged in P.nigra and P.edulis but abruptly in P.bambusoides and P.nigra var. henonis. 3) Thin-wall tyloses were well developed in the outer and central zone of culm-wall in four species. 4) Compared with the central part of culm-wall, the number of parenchyma cells and the amount of the vascular bundle sheaths per unit area were a few in the inner part. The inner part nearest to the pith cavity was consisted of thick-well parenchyma cell. 5) The dimensional variations of metaxylem vessel and parenchyma cell in the radial direction were decreased from the inner part to the epidermis in all species observed. 6) The fiber length was the maximum in the central zone and its diameter was increased from the inner part to the outer part. In the axial variation. fiber length was slightly increased from the base and then decresed slowly toward the top, and its diameter was reverse. 7) The axial variation of the bulk density was continuously increased from the base toward the top and its radial variation was rapidly increased from the inner part to the epidermis.

• Journal of the Korean Society of Clothing and Textiles
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• v.32 no.3
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• pp.431-442
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• 2008

This study was to research the characteristics of the somatotype of Korean farmers. 836 Korean farmers(Male: 361 persons, Female: 475 persons) volunteered for this study. They volunteered from 9 different area such as Kumi, Damyang, Iksan, Injae, Chungju, Choongju, Haman, Whasung, and Whasoon. The reusults were as follows: 1. The subcutaneous body fat thickness were decreased as they aged(p<.05). 2. The thicker the subcutaneous body fat thickness of Korean farmer, the wider the circumference size by the Korean famer's physical parts(p<.05-p<.001). 3. There were no significant differences in the circumference size such as upper arm, chest, bust, waist, umbilical waist, hip, and calf between Korean farmers and Korean standard size. 4. Korean women farmer showed significantly differences in the upper arm circumference(p<.01), the chest circumference(p<.01), the bust circumference(p<.01), the waist circumference(p<.01), the umbilical waist circumference(p<.01), and the calf circumference(p<.05) from Korean women standard by ages. Especially, Korean women farmer had thicker the umbilical waist circumference(the 40's: 103.2mm, the 50's 52.3mm, the 60's 22.3mm, over 70's 22.1mm) than Korean women standard. 5. The 40's women farmer had thicker the upper arm circumference, the chest circumference, the bust circumference, the waist circumference, the umbilical waist circumference, and the calf circumference than Korean women standard. The 70's women farmer had skinner circumferences except the umbilical waist circumference than Korean women standard. 6. Korean farmers showed the crooked back shape, the broad-knee length and also front-bending knee shape as they aged.