• Title/Summary/Keyword: 한국지지

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A Study on Applicability and External / Internal Stability of true MSEW abutment with slab (순수형 보강토교대의 슬래브교에 대한 적용성 및 외적/내적 안정성 검토)

  • Park, Min-Cheol
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.19 no.5
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    • pp.263-274
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    • 2018
  • In this study, the applicability and external/internal stability of a MSEW abutment with a slab were investigated. Structural analysis of slab bridges between 10 ~ 20.0 m and thicknesses of 0.7 ~ 0.9 m was carried out to calculate the reaction forces due to dead and live loads acting on the bridge supports. The slab bridge with a length of 20.0 m satisfied the allowable contact pressure of 200 kPa for the true MSEW abutment. Because the external stability of the true MSEW abutment was dominated by the geometry of the MSE wall, the change in the factor of safety due to the load of the super-structure is small. Because the stiffness of the foundations is fixed and the load of the super-structure is increased, the factor of safety of the bearing capacity was reduced. As the load of the super-structure was increased, the horizontal earth pressure of the true MSEW abutment increased greatly. As a result, the pullout and fracture of the uppermost reinforcement, which are the factors of safety, did not meet the design criteria. Therefore, it is necessary to increase the pullout resistance and the long-term allowable tensile force of the reinforcement placed on the top of the reinforced soils to ensure efficient design and performance of a true MSEW abutment.

The plan of stabilizing Gyeongnam Chung-yang Green Pepper Farm Income (경남 청양 풋고추농가 소득 안정화 방안)

  • Hwang, Min-Ji;Jeong, Ho-Jung;Cho, Jae-Hwan
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.19 no.2
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    • pp.387-396
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    • 2018
  • This study examined the instability factor of real income and net profits of Chung-yang Green Pepper Farm through an analysis of the operating costs. Furthermore, this paper suggests a plan for stabilizing the price by shipment adjustments resulting from an analysis of the price elasticity by A Linear Approximated Inverse Almost Ideal Demand System (LA/IAIDS). The income instability factor of the farm based on an analysis of the operating costs was attributed to the unexpected loading of utility expenses and collapse of the price due to oversupply at a specific point in time. On the other hand, this is insufficient to completely explain the income instability factor of Chung-yang Green Pepper Farm because a price collapse does not include the monthly price changes. An analysis of the price and scale flexibility of Chung-yang Green Pepper Farm by monthly data showed that annual farm net yield increases by 1.21% due to a 2.21% increase in price if the shipment quantity is reduced to 1% a year. In summary, a plan that supports the farm price received through declining shipments in winter is effective in stabilizing the income of farms. Because Chung-yang Green Pepper in Gyeongnam region has an especially high market share of 82.5%, the prices and income of Gyeongnam Chung-yang Green Pepper farms can be stabilized effectively if they form an association of producers around the Gyeongnam region and adjust the shipment.

Effect of Multifaceted Intervention Program on Multi-Dimensional Psychologic Condition, Empowerment, Work Readiness, and Functional Capacity in Industrially Injured Workers (다면재활프로그램이 산업재해근로자의 다차원 심리상태, 역량강화, 직업복귀준비 및 작업능력에 미치는 효과)

  • Noh, Dong-hee;Song, Moon-Hee;Jo, Eun-Ju;Kang, Seong-Gu;Kim, Kyoung-Hwa;Kam, Kyung-Yoon
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.19 no.2
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    • pp.293-301
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    • 2018
  • This study examined the effects of a multifaceted intervention program on the psychological condition, empowerment, work readiness, and functional capacity for job performance of industrially injured workers. Twelve injured workers in C hospital were included in this study. The subjects participated in a social rehabilitation program 2 hours a day, twice a week, for 8 weeks in total, as well as a work hardening program 3 to 4 hours a day, 5 times a week, for 8 weeks in total. The study was conducted from March to September, 2017. A multi-dimensional psychological examination, empowerment scale, work readiness interview and functional capacity evaluation were conducted and the test scores compared before and after the program with the Wilcoxon signed rank test. In the multi-dimensional psychological examination, there were significant differences in the levels of anxiety, depression, lack of social support, and somatization symptoms (p<.05) except anger. The participants also showed significant differences in the empowerment scale, work readiness scale, and functional capacity evaluation. This study suggests that a multifaceted intervention program can be effective in improving the psychologic condition, empowerment, work readiness, and functional capacity of industrially injured workers and, in turn, may improve their rate of returning to work.

Variation of strength of soil matrix with artificially manipulating particle distribution of granular soil (인위적 입도조정에 따른 지반의 강도특성 변화)

  • Moon, Jun-Ho;Xin, Zhen-Hua;Kim, Gab-Boo;Moon, Sun-Mi;Kim, Young-Uk
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.19 no.1
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    • pp.56-62
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    • 2018
  • In this study, an artificially formed Gap graded soil, designed to increase its shear strength, was analyzed to determine the strength parameters through direct shear tests. Uniform and fine grain size samples were compared to the Gap graded soil to investigate the increase in the shear strength. Plate loading tests were conducted using 13mm and 19mm aggregates to confirm the reproducibility of the strength enhanced samples for site application. This test confirmed that the particle size ratio and the internal friction angle are correlated to the shear strength, and the shear resistance angle significantly increased in the specific particle size ratio range. The calculation of the ultimate bearing capacity by the plate load test demonstrated that the grain size adjustment method greatly influences the strength increase rate. Therefore, the findings were verified and it was confirmed that a high shear strength is achievable despite the existence of a poor particle size distribution.

A Study on the Life Satisfaction of Married Immigrant Women : focusing on ecosystem perspectives (결혼이주여성의 생활만족도에 관한 연구: 생태체계적 관점에서)

  • Kwon, Taeyeon
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.19 no.1
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    • pp.239-250
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    • 2018
  • This study classified the predictors affecting the life satisfaction level of married immigrant women into socio-demographic factors (age, education, personal system factors (Korean proficiency, self-rated health, depressed mood, multicultural attitude), family system factors (spouse relationship satisfaction, child relationship satisfaction, couple conversation time, decision-making status), and social factors (social support, social capital, experience of social discrimination, multicultural family support center use) based on ecosystem perspectives and comprehensively examined their effects. The data for 14,464 married immigrant women from the National Survey on Multicultural Families 2015 were analyzed through hierarchical multiple regression. The findings of this study are as follow. First, the results indicated that all ecosystem factors- that is personal, family, and social system factors-significantly affected life satisfaction level of married immigrant women and especially personal and family system factors increased the predictability on their satisfaction. Second, among all predictors, spouse relationship satisfaction was the factor most strongly associated with life satisfaction. Finally, the income variable among socio-demographic factors, depression among personal system factors, spouse relationship satisfaction among family system factors, and experience of social discrimination among social system factors all showed the strongest significant effects on the life satisfaction level of married immigrant women. These results suggest that comprehensive factors based on the ecosystem perspectives to intervene and promote the life satisfaction of married immigrant women should be considered.

Development of a flower support for real flower decoration Automatic Production System (생화 장식 꽃받침 자동 생산 시스템 개발)

  • Song, Myung-Seok;Kim, Man-Joong;Kim, Seon-Bong;Ji, Peng;Ryuh, Beom-Sahng
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.19 no.7
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    • pp.63-71
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    • 2018
  • A flower support was developed for real flower decoration automation production system using an ultrasonic wave sealer to automatically produce a system. Because a flower support for real flower decoration that was produced manually could not meet the needs of the consumers, this study developed an automated manufacturing system to increase productivity. A flower support for real flower decoration was constructed using a cap consisting of plastic and plate made from non-woven fabric. The guide was designed to transport the cap to the ultrasonic wave sealer and optimal guide was developed from the test according to the material and shape. To produce the entire system, the guides and accessories were weighed and appropriate motors and pulleys were calculated. Control of the automation production system was based on a PCB board, which increased the reliability and security, and a remote controller with manual and automatic modes was prepared. After development, tests of the transfer precision and repetition accuracy revealed an X-axis of 2.7mm, a Y-axis of 1 mm, and a repetition of 0 mm. The productivity was also checked. The automated machine worked 8 hours/day to make 35 supports and 70 Therefore, the automatic system produces 200% more output than manual work

The Experience of Cancer Survivor's Return to Everyday Life (암 생존자의 일상생활 복귀 경험)

  • Kim, Seon-Young
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.21 no.5
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    • pp.327-336
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    • 2020
  • This study was undertaken to identify ways that enable a successful comeback to everyday life and improvement in the quality of life, by understanding the experiences of cancer survivors in returning to everyday life. Totally, 19 people diagnosed with complete cure after 5 years of cancer treatment, were recruited for the study. Data was collected through in-depth interviews from January 18 to February 25, 2017. One-time interviews took 90 to 120 minutes, and data analysis was achieved by applying the grounded theory. The central phenomenon of 'reality that cannot be escaped' and 'uncertain reality that cannot know tomorrow' was attributed to the causal conditions 'hard reality', 'physical exhaustion', 'psychological exhaustion' and 'economic exhaustion'. Depending on context conditions such as 'lack of family support', 'shift to a vulnerable working class', 'insufficient support system', 'hope for the societal support system', 'daunted gender', 'prejudice against cancer/cancer patients', 'information on life after rare full healing'. The strategy for a successful return was influenced by intervention conditions such as 'robust family fence' and 'effective cancer insurance', which resulted in 'building a new life' or 'enduring'. We conclude that for a successful return to daily lives, cancer survivors require comprehensive information, health and social-welfare interventions.

일본 '고방파(古方派)' 의학에 관한 연구

  • Park, Hyeon-Guk;Kim, Gi-Uk;Jeong, Gyeong-Ho
    • Journal of Korean Medical classics
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    • v.20 no.2
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    • pp.231-268
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    • 2007
  • 재일본규주황한의학적전통의학지전신취시중국전통의학적지식(在日本叫做皇漢醫學的傳統醫學之前身就是中國傳統醫學的知識). 16세기이래(16世記以來), 일본불단수도이개조중국의학적최신성과(日本不斷收到而改造中國醫學的最新成果), 동양원류우부동홍류적한방의학체계점점형성적과정전후(同樣源流又不同洪流的漢方醫學體系점점形成的過程前后), 출현료4개학문유파(出現了4個學問流派). 저취시(저就是)"후세파(后世派)"."고방파(古方派)"."절충파(折衷派)"."고증파(考證派)". 소우호세파(소于호世派), 논자이경재대한한의학원전학회지적제19권3호상보고료(논者已경在大한한의학原典학회紙的第19卷3호上보告了), 본논문시연속적연구성과(本논文是연속的硏究成果). 종이재본논문상(종而在本논文上), 이한국적이정환(以한국的李政桓), 백유상(白裕相), 정창현등적연구여중국양영적연구위기초(丁彰炫等的硏究與中國梁嶸的硏九爲基礎), 요개략지보고일본의학방면상적‘고방파’(要槪略地報告日本의학方面上的'古方派'). "고방파"지칭부정근세송명의학이지지지한대장중경적"상한잡병론"지일본의가("古方派"指稱否定近世宋明醫學而只支持漢代張仲景的"傷寒雜病論"之日本醫家). 일반"상한론"전파우일본적실정시대(一般"傷寒論"傳播于日本的室町時代), 명응년간(明應年間)(1492${\sim}$1500)판정운재명유학후(阪淨運在明留학후), 타회도일본적시후(他回到日本的시候), 종명수입(종明수入)"상한잡병론(傷寒雜病論)", 이후일본후세한의칭송료이관동지역적영전덕본(以후日本후世漢醫칭송了以關東地域的永田德本)(1513-1603)위(爲)"고방파적선구자(古方派的先구者)". 도강호시대재일본학술계출현료복고사조(到江戶時代在日本學術係出現了復古思潮). 이등인제(伊藤仁劑)(1627${\sim}$1705)앙망료유학적경전(仰望了儒學的經典), 이차적극지주장료의학적복고(而且積極地主張了醫學的復古), 이후적생조래(以후荻生組徠)(1666${\sim}$1728)대우복여성인적학문부단노력(對于復與聖人的學問不斷努力). 인차복고적학문재덕천시대성위일대학파(因此復古的學問在德川時代成爲一代學派), 18세기상반기시전성시기(18世紀上半期是全盛시期). 주요의가시명고옥현의(主要醫家是名古屋玄議)(1628${\sim}$1696), 후등양산(後藤양山)(1659${\sim}$1733), 산협동양(山脅東洋), 병하천민(병河天民)(1679${\sim}$1719), 송원유악(松原維嶽)(1689${\sim}$1765), 향천수암(香川修庵)(1683${\sim}$1755), 타문복고적유학영향도흔다의학방면(他문復古的儒學影향到흔多의학方面). 중요의가길익동동(重要醫家吉益東洞)(1702${\sim}$1773)도후대피평위고방적'태두'(到后代被평위古方的'泰斗'), 동시'마귀'(同시'魔鬼'). 인차본논문소우황한의학지중"후세파"여반대후세파적"고방파"(因此本論文소于皇漢醫學之中"后世派"與反대后世派的"古方派"), 통과학파명칭여역사지위(通過學派名稱與歷史地位), 주요의가적생애(主要醫家的生涯), 학술적요지(學術的要旨), 저서등(著書等), 이연구병보고타문적학문주장(以硏究병報告他們的學問主張). 이차진저차궤회(而且진저次机회), 상회고아문한의학연착여하역사적궤적(想回고我문韓醫學沿着如何歷史的軌跡).

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Development of the auto leveling mechanism for side-by-side refrigerator doors (양문형 냉장고 도어의 자동 단차 맞춤 메커니즘 개발)

  • Weng, Lei;Yun, Jae-Deuk;Jung, Yoong-Ho
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.13 no.7
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    • pp.3165-3174
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    • 2012
  • Recently the increasingly common large refrigerator is the side by side(SBS) refrigerator whose freezing chamber and refrigerating chamber are set side by side. But one of the biggest dissatisfaction of customers about SBS refrigerator is that the two doors don't meet the same height when they are closed. It is called door height difference(DHD). The main cause of DHD is the unevenness of floor on which a refrigerator is placed or the cabinet deformation caused by long time use. When the DHD is confirmed, the customer or maintenance personnel use wrench to adjust the support screw to make the refrigerator to reach the horizontal position. But for big refrigerator, it is not only difficult for women and old people who don't have enough force to adjust it, but also inappropriate to require customers to do this job. In order to resolve this problem, this research proposes a new mechanism which can detect the DHD and adjust two doors to the same height automatically. The adjustment would be completed during opening and closing the doors, avoid needing hard operation with wrench by hand.

A Study on Serviceability of Oversized Bolt Hole in High-Tension Bolt Joint Subjected to Bending (휨을 받는 고장력볼트 체결부에서 과대공에 따른 사용성에 관한 연구)

  • Park, Jeong-Ung;Yang, Seung-Hyun;Jang, Suk-In
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.10 no.10
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    • pp.2831-2836
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    • 2009
  • If a design load exceeding the frictional force of the contact surface is applied to the connection of steel members using a high-tension bolt friction joint, sliding occurs and the connection of the steel members bears the design load through the shear strength and bearing strength of the bolt and the base plate. The sliding distance can be determined by the tensile force of the bolt, the friction coefficient of the contact surface, and the position of the bolt in the base plate hole. This study measured and analyzed sliding according to standard bolt hole and oversize bolt hole when pure bending moment and tensile force were applied to high-tension bolt joints with different sizes of bolt holes made in the base plate and the cover plate. In a high-tension bolt joint receiving pure bending moment and tensile force, the load causing sliding in an oversize bolt hole was $74\sim94%$ of that in a standard bolt hole. In a member receiving tensile force, the sliding load ratio was lower when the size of oversize bolt holes in the base plate and the cover plate was large. In addition, the size of the oversize bolt hole in the base plate was more closely correlated with the change of sliding loadthan the size of the oversize bolt hole in the base plate.