• Title/Summary/Keyword: overwork

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A Study of Job Shop Scheduling for Minimizing Tardiness with Alternative Machines (대체기계가 존재하는 Job Shop 일정계획 환경에서 납기지연을 최소화하는 방법에 관한 연구)

  • Kim, Ki-Dong;Kim, Jae-Hong
    • Journal of Industrial Technology
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    • v.28 no.A
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    • pp.51-61
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    • 2008
  • In these days, domestic manufacturers are faced with managerial difficulties such as the increasing competition in their industry and the increasing power of customers. In this situation, they have to satisfy their customers with high quality of their products and meeting due date of their orders. Production of the order within due date is an important factor for improving enterprise competitiveness. The causes of occurrence of tardiness may be wrong product scheduling, unexpected events in field and so on, a way to minimize tardiness is use of alternative machines, overwork, outsourcing and etc.. In this study, we deal with a scheduling problem that can minimize tardiness using alternative machines. This paper provides a mathematical program and a heuristic method for job shop scheduling for minimizing tardiness with alternative machines. And a proposed heuristic method is verified comparing with optimal solution obtained by ILOG CPLEX.

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A Study on the Collision between Fishing Vessel and non Fishing Vessel using Questionnaire Analysis (설문분석을 통한 어선 비어선간 충돌사고에 관한 연구)

  • Park, Moon-Kab;Jeon, Yeong-Woo;Lee, Yoo-Won
    • Journal of Fisheries and Marine Sciences Education
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    • v.25 no.3
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    • pp.716-723
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    • 2013
  • The postal or group questionnaire survey was conducted to inquire into the cause of collision between fishing vessel and non-fishing vessel targeting fishing vessel personnel(FVP), non-NFVP and a person involved in a marine accident. As a result, we could verify the root cause of collision, a negligence of lookout which noted overwork for FVP and careless for non-FVP. The cause of collision by inappropriate avoid action was poor communications for FVP and non-FVP. To reduce collision, we need to be trained to take a sharp lookout, a radio communication by VHF and the collision avoidance actions by early and substantial action to keep well clear. The results are expected to contribute for the reduction of collision and victims.

Clinical Study of One Patient with Wallenberg's Syndrome (Wallenberg 증후군(症候群) 환자 1례의 증례 보고)

  • Byun, Seok-Mi;Kim, Mi-Bo;Tark, Myoung-Rim;Yoon, Hwa-Jung;Ko, Woo-Shin
    • The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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    • v.22 no.2
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    • pp.261-268
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    • 2009
  • Objectives : Wallenberg's syndrome is dorsolateral medullary syndrome. The main symptoms of it are ataxia of gait, nausea, vomiting, vertigo, diplopia, numbness, dysphagia and other major symptoms. By use of Oriental medical treatment, we could improve symptoms on one patient with Wallenberg's syndrome. Methods : We conducted one patient with Wallenberg's syndrome after overwork seen at Dong-Eui University Ulsan Oriental Medical Hospital. We treated symptoms from Wallenberg's syndrome by oriental medical treatment such as herb and acupuncture. Results and Conclusion : We suggest that the oriental medical treatment by differentiation of symptoms make the patient with the Wallenberg's syndrome recovery.

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Resolution Method of Women's EMT Stresses at the Fire Station: Focused on the Gyungbuk Province (소방관서 내에서 여성구급대원의 스트레스 해소방안: 경상북도를 중심으로)

  • Lee, Seong-Chul;Lee, Ranny;Kong, Ha-Sung
    • Journal of the Korea Safety Management & Science
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    • v.16 no.1
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    • pp.45-52
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    • 2014
  • The purpose of this study is to make sure what the stress causes of women's EMTs within the firehouse are, and is to suggest ideas (plans) that are possible to resolve this problem. The reasons are because of difficulties such as not only the overwork at one's tasks, the uncomfortable working environment and circumstances, women's pregnancy, but also shift work or the shift system. It's own ideas about the way to resolve these difficulties are as follows: a separate operation of first-aid department, environmental improvement within a fire house (fire station) via remodeling, activation of substitute man power, alterating women's EMT services into daywork system, mutual encouragement and solicitude among co-workers, reinforcement of the number of the working force to be mobilized, and adoption about the rest year system in employment.

Phenomenological Study on Experience of Preterm Labor (임부의 조기진통 경험에 대한 현상학적 연구)

  • Ryu, Khyung-Hee;Shin, Hye-Sook
    • Women's Health Nursing
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    • v.15 no.2
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    • pp.140-149
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    • 2009
  • Purpose: The purposes of this phenomenological study were to explore the experience of preterm labor. Methods: The participants were 7 women admitted to two obstetric hospitals in Kyunggi-do Province with preterm labor. Data was collected with MP3 records through individual in-depth interviews and participated observation. The data was analyzed by Giorgi(1985) method. Results: The results were divided into six categories as follows: 1) Inappropriate coping: unexpected event, overwork, lack of insight of preterm labor, 2) Burn out: multiple role, burden, role conflict. 3) Restrictions of lifestyle: uncomfortable hospital environment, wearisomeness, limitations of personal hygiene, 4) Physical discomfort: headache, flush, tremor, palpitations, 5) Psychological distress : concerns about fetus health status, fear of possible preterm delivery, lack of information, financial worries, 6) A transition to new lifestyle: share of household chores, communication with self-help group, careful lifestyle. Conclusion: The findings of this study will offer a better understanding of women's preterm labor experiences and suggest clues to nurses on how to improve the care they provide.

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Bibliographical study on the Jiu Qi(九氣) shown at Ju Tong Lun(擧痛論) in Shao Wen(素問) Huang Ti Nei Ching(黃帝內經) (${\ll}$소문(素問).거통론(擧痛論)${\gg}$에 나타난 구기(九氣)에 대(對)한 고찰(考察))

  • Kim, Bo-Kyung
    • Journal of Oriental Neuropsychiatry
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    • v.11 no.1
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    • pp.145-167
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    • 2000
  • Jiu Qi(九氣) was shown at Ju Tong Lun(擧痛論) in Shao Wen(素問) Huang Ti Nei Ching(黃帝內經), and is nine important factors that affect the function of human body. Jiu Qi concludes endogenous, exogenous, non-endo-exogenous factors. I do the bibliographical study on the Jiu Qi, the results were as follows; 1. The Qi of Jiu Qi has two opposite meanings. one is genuine vital energy(正氣), and the other is the factors causing abnormal state in vital energy. Jiu Qi is nine factors concluding coldness-heat(exogenous factors). six emotional factors(endogenous factor), overworking(non -endo-exogenous factor). 2. Anger may lead to abnormal rising of vital energy. Anger causes Qi of the liver to go perversely upward, and perverted flow of exuberant Qi of the liver lead to dysfunction of the spleen, so resulted in hematemesis, diarrhea, indigestion. 3. Joy can promote the harmony of vital energy and blood, so do the circulation of nutrient and defensive energy in physiological state. But an excessive joy may lead to the sluggishness of vital energy. 4. The lung keeps the pathway of air unconstructed, disseminates vital energy, cleanses the inspired air and keeps vital energy flowing downward. Sorrow affects on the function of the lung and the heart, so could result in obstruction of the circulation of nutrient and defensive energy. An excessive sorrow after stagnation may lead to the consumption of vital energy. 5. Fear makes vital energy and essence of the kidney sink to inward and downside, makes Yang-Qi can't go upward, so causes obstruction of triple wanner. An excessive fear can obstructs the ascending of Yang-Qi, so may lead to the abnormal falling of vital energy. 6. Coldness makes the sweat pore be contracted, so obstructs the circulation of triple warmer, causes sluggishness of defensive energy or Qi of the internal organ. 7. Heat makes the sweat pore be open, much amount of sweat is excreted with Yang-Qi, defensive energy, vital energy. Heat may consume vital energy. 8. Sudden fright affects on spirits of the heart and liver, causes disorder of the mental faculties and separation of blood and vital energy. Fright may lead to disorder of Qi. 9. Overwork concludes overfatigue and exhaustion caused by intemperance in sexual life. Overwork renders vital energy consumed, and hence results in lassitude and listlessness. 10. Thinking affects on the function of the heart and the spleen. Over thinking may lead to depression of vital energy. Through the bibliographical study on Jiu Qi, I got smallest amount of it, and this must be more investigated correlating with clinical study.

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Effect of Tinnitus after Bleeding, Acupuncture, Moxa, and Laser treatment (부황, 뜸, 침 레이저요법 시술이 耳鳴에 미치는 영향)

  • Park, Gyung-hwa;Han, Young-mok;Ahn, Soo-Hyun;Hwang, Chung-yeon
    • The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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    • v.12 no.1
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    • pp.396-407
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    • 1999
  • Although tinnitus is a common disease, it's reason, pathogenesis and treatment are not examined clearly. As tinnitus is a subjective complaint, it is not easy to evaluate objectively and to compare with another. In this study, we intend to estimate the effect of a variety of oriental medical treatments to tinnitus. We inquired about 30cases of tinnitus patients visited the Kwang-ju Oriental Medical Hospital of Wonkwang University from Apr. 1998 to Sep. 1998. We examined the 30cases in the view of sex, age, occupation, duration, etiologic factors, past history, associating symptoms, quality of tinnitus, and recovery rate after treatments. The results were as follows: 1. In distribution of sex, the ratio of male was $63.3\%$(19cases)and\;female\;was\;36.6\%$(11cases). 2. In distribution of age, the ratio of the 2th decade was $6.6\%(2cases),\;the\;3th\;decade\;was\;20.0\%(6cases),\;the\;4th\;decade\;was\;16.6\%(5cases),\;the\;5th\;decade\;was\;23.3\%(7cases),\;the\;6th\;decade\;was\;30.0\%\;(9cases),and\;the\;7th\;decade\;was\;3.3\%(1case)$. 3. In distribution of occupation, the ratio of employee was $23.3\%$(7cases), house-keeper was $63.3\%(11cases),\;farmer\;was\;16.6\%(5cases),\;teacher\;was\;13.3\%$ (4cases), and student, merchant, soldier was each $3.3\%$(1case). 4. In distribution of duration, the ratio of under 1month was $6.6\%$ (2cases), 1 month -6 months was $20.0\%$(6cases), 6 months- 12months was $30.0\%$(9cases), 12months-36months was $23.3\%$(7cases), and over 36months was $20.0\%$(6cases). 5. In etiologic factor of tinnitus, the ratio of unknown reason was $40.0\%$ (12cases), overwork was $16.6\%$(5cases), emotional stress was $10.0\%$(3cases), noise was $6.6\%$(2cases), cases of laying overwork upon stress was $13.3\%$(4cases), head trauma was $3.3\%$(1case), gun report was $3.3\%$ (1case), and after sickness was $6.6\%$(2cases). 6. 9 cases had experienced such a disease as meniere's disease, tympanitis, labyrinthitis, trauma of tympanum, hypertension, etc. 7. Commonly associated symptoms were dizziness, deafness, uneasiness, headache, ear fullness, fatigue, insomnia, nausea, vomiting, and forgetfulness. 8. Most frequent quality of tinnitus were buzzing, whistling, humming etc. 9. In $76.6\%$(23cases) of tinnitus patients, it was improved, but in $23.3%$(7cases) of them, not improved. Total recovery rate was $42.2\%$.

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Research into the Connections between the Sarangche of the Chosun Dynasty and Modern Residential Work Spaces (조선시대 사랑채와 현대주거 내 업무공간의 연계성 연구)

  • Noh, Jin-Hee;Choi, Kyung-Ran;Sung, Yun-Jung
    • Journal of the Korean housing association
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    • v.22 no.5
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    • pp.37-46
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    • 2011
  • Residential space has come to maintain a degree of specialization dependent upon the division of space according to function, while roles and functions have either expanded or ceased to exist corresponding to shifts in social values. However, various human behaviors connected to lifestyle habits and values are in fact becoming obsolete. This research will examine the mental, social, and functional aspects of the relationship between residential work spaces in modern homes and the sarangche as well as the communal space of daily and social life of the Chosun Dynasty to enhance the value and function of traditional residential space. As the boundary between family and work blurs with the home office environment of today, we are experiencing a deterioration of health and seeing problems in securing family domain as well as the prolonging of overwork. While the function of the traditional sarangchae encompassed a wider variety of activities than today's homes, the sarangchae achieved an efficient use of space divisions between rooms according to the particular purpose and situation. Accordingly, a reinterpretation of modern residential work space is needed through its connection to the sarangchae with consideration to the philosophy and values of the life of the noble class and the habits of our traditional lifestyle that have previously taken place within the sarangchae in an exterior space.

The Clinical Study on the Effects of Moxibustion to FBSS(Failed Back Surgery Syndrome) (요추 수술실패증후군 환자에 대한 구법(灸法)의 임상적 연구)

  • Lee, Dong-Hwa;Park, Hee-Soo;Hwang, Jung-Su
    • Journal of Acupuncture Research
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    • v.23 no.3
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    • pp.67-75
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    • 2006
  • Objectives : The purpose of this study is to evaluate the clinical effect of moxibustion treatment for FBSS patients by VAS. Methods : This clinical study was carried out for 51 cases with FBSS, who had been treated from January, 2003 to October, 2005, in oriental medical clinic. The patients were treated by the moxibustion during 8 weeks on the pain region of lower back or legs. We measured the effects of treatment by VAS. SPSS( Statistical Program for Social Science) for Windows was used for statistical analysis and repeated measures ANOVA was performed to gauge the improvement of VAS. Results : 1. We investigated 25 female and 26 male patients. The age distribution was from early 20's to 70's, among which 50's were most common. 2. The worsening factors are usually overwork and heavy lifting, but the main reason is unknown. 3. According to VAS, The patients with FBSS were improved by moxibustion treatment. Conclusion : Through this research, moxibustion therapy is considered to be effective and safe method for FBSS(Failed Back Surgery Syndrome). Moxibustion treatment had some problems that should be overcome such as severe pain and burning. Therefore we should pay more attention.

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A Clinical Study of Trigger Point by Blocking Methods (유발점 차단에 의한 임상적 연구)

  • Hur, Yung-Gu
    • Journal of Korean Physical Therapy Science
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    • v.4 no.2
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    • pp.383-390
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    • 1997
  • The purpose of this study is the evaluation of the degree of post injection soreness, symptom duration, factor and autonomic symptoms after trigger point injection in patients with trigger points. We devided the subjects of the study into four groups Such as, only dry needling, needle-TENS, with massage-stretch, massage-stretch only, including 100 patients, and measured the visual analog scale before treatment and after treatment. Before treatment, The VAS mean scores were $6.2{\pm}1.03$ in needle-TENS with massage-stretch group ; $6.2{\pm}1.75$ in needdle-TENS group, and $6.3{\pm}1.85$ in dry needling group, and $6.8{\pm}1.03$ in massage-stretch group. In post injection 3rd day, The VAS mean score were $0.9{\pm}1.78$ in needling-TENS with massage-stretch group, $1.1{\pm}1.52$ in needling-TENS group, $1.7{\pm}1.10$ in dry needling group, and $3.9{\pm}3.01$ in massage-stretch group. As for a causative factor of activities for trigger were overload with 37.0%, overwork with 35.0% and fatigue with 13.0%. Symptoms for trigger were tenderness with 28.0%, numbness and tingling with 24.0%. ROM limit with 17.0% and tightness with 17.0%. As a result, needling-TENS with massage-stretch group showed less soreness and effect than other group.

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