• International Journal of Human Ecology
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• 제10권2호
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• pp.25-37
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• 2009

This study investigated differences in related factors affecting life satisfaction with the elderly in or above middle class experiencing successful ageing. In the study, the respondents were 206 elderly people whose occupation (professional career) placed them in the middle and upper class range residing in metropolitan Seoul. Major results are summarized as follows: (1) In order to test gender differences, results of t-test show that there are 13 variables with seven of those being statistically significant and the rest being insignificant. (2) Needs fulfillment and physical functioning are significant factors for Korean male elders to be satisfied with their later lives. Needs fulfillment, physical functioning, group activity, and learning activity are significant factors for Korean female elders to be satisfied with their later lives.

• 소성∙가공
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• 제6권3호
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• pp.192-202
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• 1997

This study presents an effect of number of passes in wire-cut electric discharge machining on fine blanking dies and products. Three part fine blanking dies were produced by the difference of numbers of passes discharge machining. Brake pad was produced, through the die produced like that, the objective of this study is the improvement in surface roughness of die block and punch, life extension of die block, the decrease of second fracture dimensions, the rise of productive.

• 한국콘텐츠학회논문지
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• 제20권8호
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• pp.448-465
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• 2020

본 연구는 성인초기 지적장애인을 연구대상으로 하여 가족기능의 조절효과를 중심으로 지적장애인의 자기 결정이 삶의 질에 미치는 영향을 분석하였다. 본 연구 목적을 달성하기 위해, 성인초기 지적장애인으로, 지적 장애진단을 받은 만 18세에서 만 25세인 지적장애인으로 정하고, 지역사회에서 생활하고 있는 장애인을 선정하였으며, 설문 진행의 어려움을 감안하여 성인초기 지적장애인들이 가장 많이 이용하고 있는 주요 복지기관을 선정하여 편의표집을 하였다. 연구결과는 다음과 같다. 첫째, 지적장애인의 "자기결정(자율성, 심리적 역량, 자아실현)"은 "삶의 질(신체적 안녕, 물리적 안녕, 사회적 안녕, 생산적 활동 및 발달, 심리·정서적 안녕)"에 영향을 미치는 것으로 나타났다. 둘째 지적장애인의 "인구통계학적 특성(성별, 종교유무, 근로여부)"에 따라 "자기결정(자율성, 심리적 역량, 자아실현)"의 차이는 발생하지 않았다. 셋째, 지적장애인의 "인구통계학적 특성(성별, 종교유무, 근로여부)"에 따른 "삶의 질(신체적 안녕, 물리적 안녕, 사회적 안녕, 생산적 활동 및 발달, 심리·정서적 안녕)"은 차이가 발생하였다. 넷째, 지적 장애인의 "자기결정"과 "삶의 질"의 관계에서 가족기능의 조절효과가 발생하였다. 본 연구는 성인초기 지적장애인을 대상으로 당사자의 관점에서 바라본 자기결정과 가족기능, 삶의 질에 대한 관계를 검증함으로써 장애인복지 실천현장에서 이들에게 제공되어야 하는 서비스 실천방향을 제시하였다는 측면에서 의미가 있다.

• 환경영향평가
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• 제6권2호
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• pp.103-112
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• 1997

The object of this study is the introduction and the application of Ecological Footprint(EF) for sustainability of regional people activities. It is a tool for the evaluation of specific projects through various lifestyles or consumption to area of broad policy and budgets. But in Korea there is no assessment for consumption level of human activities by EF. Therefore this study try to analyse ecologically productive land for human activities of Cheju-island in order to assess the sustainability in Cheju and compares with another industrized countries. We analyze the human activities level of Cheju-island then the EF is about 0.9(ha/cap). This value is not more than another countries like Canada and United States. EF assists in choosing technologies, policies and Life Cycle Assessment(LCA) which can perform a certain task with the smallest ecological footprint. It will help society to avoid collapse and move towards sustainability and ecological efficiency.

• 한국초지조사료학회지
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• 제17권4호
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• pp.351-356
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• 1997

With a purpose of finding out the influences of herbicide treatment on the forage value and ecological characteristics of grassland vegetations in the Rumex acetosella dominated pasture, this trial was arranged as a randomized block design with three treatments[1) Seeding(cntrol), 2)dicamba 4${\ell}$/ha+seeding+dicamba 4 ${\ell}$/ha and 3) dicamba 4${\ell}$/ha+lime+seeding+dicamba 4 ${\ell}$/ha], and conducted in Youngam, Jeonnam Province ftom June, 1995 to October, 1996. In the Rumex acetosella dominated pasture, the treatment of dicamba 4${\ell}$/ha+ lime+seeding+dicamba 4${\ell}$/ha was improved to the most desirable grassland vegetation with pasture plants of 87%. In the renovated grassland, the life forms of Hemicryptophytes increased greatly by 57.0%, on the other hand Geophytes was much more decreased by 56.8% than those of low productive grassland. The similarity coefficients between grassland vegetation groups were greatly affected by botanical composition. The forage value of standing crop in the renovated grassland with 6.56 was much more increased than low productive grassland with 2.76. The treatment of dicamba 4${\ell}$/ha+lime+ seedingdicamba 4${\ell}$/ha increased 2 1% of dry mattaer yield, and were high 18- 19% of energy (NEL and TDN) productivity than those of the control(seeding), respectively.

• Asian-Australasian Journal of Animal Sciences
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• 제8권5호
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• pp.499-503
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• 1995

The performance records of 410 Holstein Friesian crossbred cows belonging to seven genetic groups (Fl, 3/4, 1/4, 5/8, 3/8, triple cross and miscellaneous cross) maintained at Livestock Production Research Institute, Bahadurnagar, Okara were analyzed for various parameters of lifetime traits. For the analysis 2 data sets were made. Data set I included all the cows disposed off from the herd which have completed at least one lactation while for data set II performance traits for only first five lactations were considered. The data was analyzed by Mixed Model Least squares and Maximum Likelihood computer programme PC-I version. The least squares means ${\times}$ standard errors for data set I (periods are in days and milk yield is in litres) were $994.5{\pm}15.5$, $1,877.0{\pm}70.9$, $1,651.9{\pm}19.3$, $2,533.7{\pm}36.5$, $3,530.0{\pm}40.5$, $15,785.2{\pm}320.0$, $8.46{\pm}0.19$, $5.66{\pm}0.16$ and $3.79{\pm}0.08$, respectively for age at first calving (APC), Ist lactation milk yield (FLMY), productive life (PL), herd life (HL), total life (TL), lifetime milk yield (LTMY), milk yield per day of productive life (MY/PL), milk yield per day of herd life (MY/HL) and milk yield per day of total life (MY/TL). For data set II these values were $1,004.2{\pm}21.2$, $2,220.5{\pm}113.1$, $1,429.1{\pm}40.8$, $2,302.1{\pm}73.3$, $3,307.2{\pm}77.3$, $13,189.7{\pm}667.4$, $9.10{\pm}0.34$, $5.66{\pm}0.25$ and $4.02{\pm}0.18$ in the same order. For data set I the effect of year of first calving was significant for AFC, FLMY, PL, HL, LTMY and MY/PL. The season of Ist calving was significant only for MY/PL. The effect of genetic group was significant for AFC, FLMY, MY/PL and MY/TL while the effect of parity was significant for all the traits. For data set II the effect of year of Ist calving was significant only for AFC, FLMY and PL while the season of Ist calving was significant for FLMY and PL while the effect of genetic groups was significant for MY/HL only. The lifetime production performance is in general close to the various estimates reported in the literature.

• 대한가정학회지
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• 제33권6호
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• pp.115-136
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• 1995

The exploratory purpose of this study was to investigate the Honsu trend and to examine the relationships between the Honsu, marriage exchange resources and marital satisfaction from general group and also explore the differences in Honsu expenditure between the general group and the aimed group. the explanatory purpose of this study was to prove the social meaning of the Honsu as a 'productive exchange resources' using Emerson's exchange network theory. The data was collected from 800 men and women of general group and 72 men and women of aimed group within 5 years of marital duration through the questionnaire method. Major findings of the study from the general group were as follows : in general group 1. The bridegroom group expended more Honsu than bride group. Bridegroom's primary expenditure item was house expenditure, and bride's primary one was newlywed life goods. 2. The bridegroom's Honsu were influenced positively by parents'SES, bridegroom & bride's education level and bride's parents'SES. Bride's Honsu were influenced positively by parents' SES and bridegroom & bride's education level. 3. Bridegroom's marital satisfaction were influenced positively by bride's marriage need, bridegroom's marriage need, bride's physical attraction and bridegroom & bride's education level. Bride's marital satisfaction were influenced positively by bride's marriage need, bridegroom's physical attraction, bridegroom & bride's education level, bridegroom's marriage need, bridegroom's future possibilities and bridegroom's Honsu. 4. The social meaning of the Honsu was a 'productive exchange resource'. 1. The bridegrooms of aimed group expended more housing expenditure and also Honsu than the brides but there's no statistically significant differences in Honsu expenditure between the bridegrooms and the brides of aimed group. 2. The bridegrooms of aimed group expended about 3 times more money for wedding present for spouse and abut 1.2 times more for Honsu than the bridegrooms of general group. The bride of aimed group expended about 4.6 times more money for general group. the bride of aimed group expended abut 4.6 times more money about 4 times more for housing expenditure and about 3 times more for total Honsu than the brides of general group.

• 농업과학연구
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• 제39권2호
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• pp.227-242
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• 2012

Accurate estimation of milk production cost is very important for dairy farmers in establishing strategies for business management (e.g. planning a program for milk production, deciding the size of business and investment, determining the milk price for sale). Since the estimated cost of milk production is used as an important index to determine the basal price of milk in Korea, there has been much interest and debate on the method used to estimate milk production cost among the stakeholder. This study was thus carried out to identify problems in the current methodology for estimating cost of milk production, and to find a better way to improve it. We propose several alternatives and better ways to improve the current method for estimating cost of milk production. Estimation of the income and cost per head should be based on the number of cattle converted to grown cows. Cost estimation per liter of milk should be made for both whole milk and 3.4% milk fat corrected milk. The value of purchased cows and raised replacement heifers should be the same as their market value. The productive life span of cows should be less 4 years, and the terminal or salvage value of cows needs to be 30 to 40% less than her initial value. When calculating depreciation of cows over the productive life span, however, the salvage value should be 0 or 1 Korean won. On calculating labor costs, the farm labor wage corresponding to the average wage of nonfarm industrial workers should be assumed. Beside of these, better estimation procedures for other items are also given. The proposed methods from this study should improve the accuracy of estimation of milk production cost and help to achieve consensus among the stakeholder.

• 한국콘텐츠학회논문지
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• 제22권5호
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• pp.711-720
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• 2022

본 연구는 일과 생활 균형의 일탈행동에 대한 영향력 관계에서 직무효능감과 회복탄력성의 다중 매개효과를 검증하고자 수행되었다. 실증연구를 위한 자료는 제주지역에 근무하는 기업 근로자를 대상으로 자료를 수집하였으며, 자료수집 과정에서 발생할 수 있는 동일방법편의를 최소화하기 위해 쌍으로 구성된 총 400쌍의 설문지를 배부하여 355부를 회수하여 불성실하게 응답한 57부를 제외하고 총 298부를 분석에 활용하였다. 가설검증을 위한 과정은 SPSS Macro 프로그램을 활용하여 다중 매개효과를 검증하였으며, 연구자들의 예상과 같이 일과 생활 균형은 직무효능감과 회복탄력성에 긍정적인 영향력이 확인되었고, 일탈행동에는 저감효과가 있는 것으로 확인되었다. 더불어 양자관계에서 다중매개 효과는 직무효능감은 완전 매개효과가 확인되었으나 회복 탄력성은 양자관계를 연결하는 주요 매개변수로의 역할을 하지 않는 것으로 확인되었다. 본 연구의 시사점은 기존연구에서 주목받고 있는 일과 삶의 균형을 개인 차원에서 발생하는 생산적 행동에 대한 긍정적 역할의 범주를 넘어 이를 반생산적 행동으로 연구 범주를 확대하고 그 역할에 대한 의미 있는 이론적 및 실무적 시사점을 제안하고 있다.

• Animal Bioscience
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• 제37권2호
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• pp.184-192
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• 2024

Objective: This study aims to investigate the genetic structure and characteristics of the Angus cattle population in Hungary. The survey was performed with the assistance of the Hungarian Hereford, Angus, Galloway Association (HHAGA). Methods: Genetic parameters of 1,369 animals from 16 Angus herds were analyzed using the genotyping results of 12 microsatellite markers with the aid of PowerMarker, Genalex, GDA-NT2021, and STRUCTURE software. Genotyping of DNA was performed using an automated genetic analyzer. Based on pairwise identity by state values of animals, the Python networkx 2.3 library was used for network analysis of the breed and to identify the central animals. Results: The observed numbers of alleles on the 12 loci under investigation ranged from 11 to 18. The average effective number of alleles was 3.201. The overall expected heterozygosity was 0.659 and the observed heterozygosity was 0.710. Four groups were detected among the 16 Angus herds. The breeders' information validated the grouping results and facilitated the comparison of birth weight, age at first calving, number of calves born and productive lifespan data between the four groups, revealing significant differences. We identified the central animals/herd of the Angus population in Hungary. The match of our group descriptions with the phenotypic data provided by the breeders further underscores the value of cooperation between breeders and researchers. Conclusion: The observation that significant differences in the measured traits occurred among the identified groups paves the way to further enhancement of breeding efficiency. Our findings have the potential to aid the development of new breeding strategies and help breeders keep the Angus populations in Hungary under genetic supervision. Based on our results the efficient use of an upcoming genomic selection can, in some cases, significantly improve birth weight, age at first calving, number of calves born and the productive lifespan of animals.