• 제목/요약/키워드: Warm-working

검색결과 63건 처리시간 0.032초

변형지도 모델링을 통한 구리 분말 소결체의 고온 변형에 따른 미세조직 연구 (Microstructural Evolution during Hot Deformation of P/M Copper using Processing Map)

  • 장수호;김영무;박경채
    • 한국분말재료학회지
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    • 제19권2호
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    • pp.134-139
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    • 2012
  • P/M coppers are subjected to the isothermal compression tests at the strain rate ranging from 0.01 to 10.0 $s^{-1}$ and the temperature from 200 to $800^{\circ}C$. The processing map reveals the dynamic recrystallization (DRX) domain in the following temperature and strain rate ranges: $600-800^{\circ}C$ and 0.01-10.0 $s^{-1}$, respectively. In the domain, the region at temperature of $600^{\circ}C$ and strain rate of $10^{-2}s^{-1}$ shows peak efficiency. From the kinetic analysis, the apparent activation energy in the DRX domain is 190.67 kJ/mol and it suggests that lattice self-diffusion is the rate controlling mechanism.

일부병원의 신규간호사 오리엔테이션에 관한 조사연구 (Survey on the Orientation for New Nurses in a Hospital)

  • 이정애
    • 간호행정학회지
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    • 제3권1호
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    • pp.83-92
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    • 1997
  • This study was designed to evaluate the current orientation and further to develop an effective orientation curriculum of new nurses by analyzing questionraire taken from 45 numbers of all nurses who have worked for 18 months below at one hospital located in C city on July, 1995. The results obtained are summarized as follows. 1. The subjects showed the high necessity of "emergency nursing", "cardiopulmunary resuscitation", "disinfection and infection" and "interpersonal relationship" in order, but relatively low necessity of "doctor supports" and "medical insurance affair" for the practical orientation. Therefore, the orientation should provide prepondently an education Which they really need, on the basis of their education experiences and/or requirements. 2. Practical training, individual teaching and performance will be an effective orientation more than theorical education. The educator should be selected from unit based persons being capable of providing technical education to trainee. Also, in order to develop the teaching method and to improve the corresponding ability, a special program is required for educators. 3. It will be desirable that task training is given at least one month before working at their unit. In addition, orientation schedule should be made to concentrate trainee on their task training fully. 4. The subjects showed that half of them had spent four to six months for work adaptation. A meeting of new nurses may be helpful not only to acclimate themselves to new circumstances. but also to provide an exchange of views and an emotional relationship. Furthermore, unit based staffs should exerts efforts to maintain the educational circumstances and warm concern for new nurse's adaptation.

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원자력발전소 온배수를 이용한 해양온도차발전에 대한 연구 (Study on OTEC System using Condenser Effluent from Nuclear Power Plant)

  • 서향민;박성식;신상호;김종보;김남진
    • 대한설비공학회:학술대회논문집
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    • 대한설비공학회 2008년도 하계학술발표대회 논문집
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    • pp.1267-1272
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    • 2008
  • OTEC power plants are studied as a viable option for the supply of clean energy. In this paper, the thermodynamic performance of OTEC system was calculated. The results show that the working fluids such as R32 and R125 would be alternatives based upon cutting down the system size, environmental preservation, and conditions without having a severe penalty in efficiency. the initial cost significantly. The regeneration system increase in energy efficiency, and the system can generate electricity when the difference in warm and cold seawater inlet temperatures are greater than $15^{\circ}C$. Also, the system efficiency of OTEC power plant using the condenser effluent from nuclear power plant instead of the surface water increased about 2%.

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The Symbolic Meanings of Louis XVI's Costumes in the Portraits

  • Kim, Ju-Ae
    • 한국의류학회지
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    • 제35권12호
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    • pp.1409-1417
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    • 2011
  • This study examines King Louis XVI costumes and his portraits according to symbolic meanings. This study analysis of costumes comes from portraits related various domestic and overseas literature, preliminary study papers, and web sites. Omnipotence, activity, nobility, openness and benevolence were distinguished in the symbolic meaning expressed in the portraits of King Louis XVI. Louis XVI in a portrait was drawn with god or expressed as a martyr and symbolically showed the omnipotence of god. Louis XVI was symbolized as almighty god by maximizing the authority and dignity of the king through the hands of justice that were used as a background or portrait accessory and a costume with the symbol of House of Bourbon. Kings of many generations were expressed as authoritative through portraits. However, Louis XVI showed a proletarian aspect in ordering portraits to reflect the daily working image of communicating with citizens. Active images such as the king riding a horse or administering the state affairs were emphasized in a political and military perspective; in addition, the benevolence of the king was symbolically presented through a family portrait. This symbolically signified that the king is a warm-hearted person who passionately takes care of state affairs and loves the people through a noble element coming from pastel colors and attributes of red colors. Historically, the political incompetence and indifference of kings was fragmentally emphasized; however, these portraits considered the king as one who tried to fulfill duties as the true king with a great interest in politics and the people.

AZ31-xCa (x=0, 0.7, 2.0 wt.%) 압출재의 압축변형시 파괴거동 (Fracture Behavior of AZ31-xCa (x=0, 0.7, 2.0 wt.%) Extrudes during Compression)

  • 강나은;임창동;유봉선;박익민
    • 대한금속재료학회지
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    • 제48권1호
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    • pp.85-89
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    • 2010
  • The plastic deformation behavior of magnesium alloy is affected simultaneously by deformation temperature and strain rate under warm and/or hot working conditions. The soundness of deformation of AZ31-xCa (x=0. 0.7, 2.0 wt.%) extrudes during compression was strongly affected by processing variables including deformation temperature, strain rate. compression-loading direction, which was related to the activation of available deformation systems. The deformation behavior of AZ31-xCa extrudes was also affected by Ca content, which was related to the change of the sort and fraction of second phase. The complex effects of deformation temperature and strain rate on the deformation behavior of AZ31-xCa extrudes during compression under various conditions could be successfully described by Zener-Hollomon parameter.

마스네슘 합금 판재 (AZ31)의 온도별 성형 특성 분석 (A study on forming characteristics of magnesium alloy (AZ31) on various temperatures)

  • 이한규;라원빈;홍소담;이창환
    • Design & Manufacturing
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    • 제12권3호
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    • pp.42-47
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    • 2018
  • Recently, in the surge of global environmental issues, there has been a great attention to lightweight materials in purpose of saving energy. Magnesium alloys not only have low specific gravity, and superb specific stiffness, but are also excellent in blocking vibrations and electromagnetic waves. So demand for this material is getting bigger rapidly throughout the industry. In this study, we examined the improvement of formability of magnesium alloy AZ31 material in warm working. Drawing, bending and shearing process were carried out by varying the forming temperature and the forming speed, and the influence of the variables on each process was studied. In the experiments, the high forming temperature and low forming speed results in high formability in the drawing process and the bending process. In the shearing process, as the forming temperature increases, the length of the fracture decreases.

간호개념에 대한 기초조사 (The Empirical Exploration of the Conception on Nursing)

  • 백혜자
    • 대한간호학회지
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    • 제11권1호
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    • pp.65-87
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    • 1981
  • The study is aimed at exploring concept held by clinical nurses of nursing. The data were collected from 225 nurses conviniently selected from the population of nurses working in Kang Won province. Findings include. 1) Nurse's Qualification. The respondents view that specialized knowledge is more important qualification of the nurse. Than warm personality. Specifically, 92.9% of the respondents indicated specialized knowledge as the most important qualification while only 43.1% indicated warm personality. 2) On Nursing Profession. The respondents view that nursing profession as health service oriented rather than independent profession specifically. This suggests that nursing profession is not consistentic present health care delivery system nor support nurses working independently. 3) On Clients of Nursing Care The respondents include patients, family and the community residents in the category of nursing care. Specifically, 92.0% of the respondents view that patient is the client, while only 67.1% of nursing student and 74.7% of herself. This indicates the lack of the nurse's recognition toward their clients. 4) On the Priority of Nursing care. Most of the respondents view the clients physical psychological respects as important component of nursing care but not the spiritual ones. Specially, 96.0% of the respondents indicated the physical respects, 93% psychological ones, while 64.1% indicated the spiritual ones. This means the lack of comprehensive conception on nursing aimension. 5) On Nursing Care. 91.6% of the respondents indicated that nursing care is the activity decreasing pain or helping to recover illness, while only 66.2% indicated earring out the physicians medical orders. 6) On Purpose of Nursing Care. 89.8% of the respondents indicated preventing illness and than 76.6% of them decreasing 1;ai of clients. On the other hand, maintaining health has the lowest selection at the degree of 13.8%. This means the lack of nurses' recognition for maintaining health as the most important point. 7) On Knowledge Needed in Nursing Care. Most of the respondents view that the knowledge faced with the spot of nursing care is needed. Specially, 81.3% of the respondents indicated simple curing method and 75.1%, 73.3%, 71.6% each indicated child nursing, maternal nursing and controlling for the communicable disease. On the other hand, knowledge w hick has been neglected in the specialized courses of nursing education, that is, thinking line among com-w unity members, overcoming style against between stress and personal relation in each home, and administration, management have a low selection at the depree of 48.9%,41.875 and 41.3%. 8) On Nursing Idea. The highest degree of selection is that they know themselves rightly, (The mean score measuring distribution was 4.205/5) In the lowest degree,3.016/5 is that devotion is the essential element of nursing, 2.860/5 the religious problems that human beings can not settle, such as a fatal ones, 2,810/5 the nursing profession is worth trying in one's life. This means that the peculiarly essential ideas on the professional sense of value. 9) On Nursing Services. The mean score measuring distribution for the nursing services showed that the inserting of machine air way is 2.132/5, the technique and knowledge for surviving heart-lung resuscitating is 2.892/s, and the preventing air pollution 3.021/5. Specially, 41.1% of the respondents indicated the lack of the replied ratio. 10) On Nurses' Qualifications. The respondents were selected five items as the most important qualifications. Specially, 17.4% of the respondents indicated specialized knowledge, 15.3% the nurses' health, 10.6% satisfaction for nursing profession, 9.8% the experience need, 9.2% comprehension and cooperation, while warm personality as nursing qualifications have a tendency of being lighted. 11) On the Priority of Nursing Care The respondents were selected three items as the most important component. Most of the respondents view the client's physical, spiritual: economic points as important components of nursing care. They showed each 36.8%, 27.6%, 13.8% while educational ones showed 1.8%. 12) On Purpose of Nursing Care. The respondents were selected four items as the most important purpose. Specially,29.3% of the respondents indicated curing illness for clients, 21.3% preventing illness for client 17.4% decreasing pain, 15.3% surviving. 13) On the Analysis of Important Nursing Care Ranging from 5 point to 25 point, the nurses' qualification are concentrated at the degree of 95.1%. Ranging from 3 point to 25, the priorities of nursing care are concentrated at the degree of 96.4%. Ranging from 4 point to 16, the purpose of nursing care is concentrated at the degree of 84.0%. 14) The Analysis, of General Characteristics and Facts of Nursing Concept. The correlation between the educational high level and nursing care showed significance. (P < 0.0262). The correction between the educational low level and purpose of nursing care showed significance. (P < 0.002) The correlation between nurses' working yeras and the degree of importance for the purpose of nursing care showed significance (P < 0.0155) Specially, the most affirmative answers were showed from two years to four ones. 15) On Nunes' qualification and its Degree of Importance The correlation between nurses' qualification and its degree of importance showed significance. (r = 0.2172, p< 0.001) 0.005) B. General characteristics of the subjects The mean age of the subject was 39 ; with 38.6% with in the age range of 20-29 ; 52.6% were male; 57.9% were Schizophrenia; 35.1% were graduated from high school or high school dropouts; 56.l% were not have any religion; 52.6% were unmarried; 47.4% were first admission; 91.2% were involuntary admission patients. C. Measurement of anxiety variables. 1. Measurement tools of affective anxiety in this study demonstrated high reliability (.854). 2. Measurement tools of somatic anxiety in this study demonstrated high reliability (.920). D. Relationship between the anxiety variables and the general characteristics. 1. Relationship between affective anxiety and general characteristics. 1) The level of female patients were higher than that of the male patient (t = 5.41, p < 0.05). 2) Frequencies of admission were related to affective anxiety, so in the first admission the anxiety level was the highest. (F = 5.50, p < 0.005). 2, Relationship between somatic anxiety and general characteristics. 1) The age range of 30-39 was found to have the highest level of the somatic anxiety. (F = 3.95, p < 0.005). 2) Frequencies of admission were related to the somatic anxiety, so .in first admission the anxiety level was the highest. (F = 9.12, p < 0.005) 0. Analysis of significant anxiety symptoms for nursing intervention. 1. Seven items such as dizziness, mental integration, sweating, restlessness, anxiousness, urinary frequency and insomnia, init. accounted for 96% of the variation within the first 24 hours after admission. 2. Seven items such as fear, paresthesias, restlessness, sweating insomnia, init., tremors and body aches and pains accounted for 84% of the variation on the 10th day after admission.

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조선시대 여성의 일상용 머리쓰개에 관한 연구 (A Study on Women's Daily Headdresses in the Joseon Dynasty)

  • 강서영;김지연
    • 복식
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    • 제65권6호
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    • pp.79-98
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    • 2015
  • This article studied women's headdresses that appeared in the paintings of Joseon Dynasty. This examined the shapes of women's headdresses painted in genre paintings, record paintings and nectar ritual paintings from Joseon Dynasty and compared them to literatures and relics in order to analyze their types and characteristics. Headdress can be categorized into three types: (1) square cloth worn on the top of the head; (2) a kind of small cap; (3) Cloth that completely covers the head. The first type of headdress resembles the shape of Garima. In the early period of Joseon Dynasty, it was worn not only by Gisaeng, but also by both upper and lower class women. The second type of headdress includes a cap made by connecting several cloths, round cap, and cone-shaped cap. These two types are worn on top of the head. However, sometimes these were worn between the head and the chignon to fix the chignon. Also, these were used as hair accessories for decorative purposes. In particular, old women wore these headdresses and braided their white hair around them to fix the chignon. This way, the headdress not only kept the head warm, but also hid the old women's scanty hair. Headdress was usually made of black fabric and it was a simple hair accessory that replaced the wig. The third type of headdress was widely worn among lower class women. The cloth completely covered the head so that the hair would not fall when working. It also provided protection from cold and hot weather. According to paintings, there were many ways of wearing the cloth around the head.

일제강점기의 한의학 교재 중 하나인 『한방의학강습서(漢方醫學講習書)』 - 서문과 발문(跋文)의 번역과 인용서적의 분석을 중심으로 (A Lecture Book on Traditional Korean Medicine in the Period of Japanese Occupation, 『Eihak Gangseupseo(醫學講習書)』 - focused on its preface, epilogue and reference books)

  • 조학준
    • 한국의사학회지
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    • 제23권1호
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    • pp.77-104
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    • 2010
  • In July 2008, I obtained a copy of "Hanbang Eihak Gangseupseo" through Uibangseowon. It was recorded that the book was compiled by Seong Ju-bong and reviewed by Ji Seok-young. According to previous studies, this book was the lecture book that was used in teaching Traditional Korean Medicine in Daejeon, Chungcheongnam-do. This book gave insight to the system and curriculum of the school for Traditional Korean Medicine in Daejeon, Chungcheongnam-do. It also exhibited the academic characteristics of Traditional Korean Medicine in the Period of Japanese Occupation and the medical viewpoint of Seong Ju-bong. The summary is as follows: First, an independent School for Traditional Korean Medicine was run in Daejeon, Chungcheongnam-do, with reasonable curriculums and systematic textbooks. Second, the medical viewpoint and treatment methods of Huang Yuan-Yu of Qing Dynasty was actively introduced. Then it was reorganized for the society and stimulated the progress of Traditional Korean Medicine. Third, while absorbing Chinese Medicine, it still inherited our heritage of Traditional Korean Medicine Especially, Seong Ju-bong's original opinions and clinical experiences are shown in surgery, gynecology and pediatrics. Fourth, in a break from the past, when Chinese culture could not be introduced due to diplomatic problems between Joseon and Qing, efforts were made to overcome limitations of lagging behind by adopting and educating Warm Disease study. Fifth, while working side by side with Ji Seok-young who introduced the modern Western Medicine through vaccination, it still searched for a traditional Korean medical treatment for chickenpox. I hope that the report of my findings through reading "Eihak Gangseupseo" could make up for the fact that the medical history during the colonial period is scarce.

학습 환경의 실내 온도와 학습재료의 색채에 따른 학습수행의 특성 (The Characteristics of the Learning Performance according to the Indoor Temperature of the Learning Environment and the Color of the Learning Materials)

  • 김보성
    • 한국산학기술학회논문지
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    • 제14권2호
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    • pp.681-687
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    • 2013
  • 본 연구는 학습 환경의 실내 온도와 학습재료 색채와의 조합이 학습수행에 어떠한 영향을 미치는 지를 살펴보고자 하였다. 이를 위해 학습활동 적정온도($22.5{\sim}24^{\circ}C$)를 중심으로(중립 실내 온도 조건), 그 이상인 조건(고온 실내온도 조건), 그리고 그 이하인 조건(저온 실내 온도 조건)으로 각각 실내 온도 조건을 구분하였으며, 난색계열인 빨간색과 한색계열인 파란색, 그리고 중성인 검은색과 연두색으로 각각 색채 조건을 구분하였다. 학습과 관련된 과제로는 음운 작업기억 과제를 사용하여 집단 간 실내 온도 조건에 따른 색채 조건에서의 과제 수행을 살펴보았다. 그 결과, 학습과제의 반응시간에서는 각 독립변수들에 의한 차이가 유의하지 않은 반면, 정확률에서는 색채 조건 중 빨간색과 검은색 조건에서 보다 정확한 수행이 나타났다. 이는 빨간색이 가진 현저성과 색채 온도감 및 검정색이 가진 친숙성과 다른 색에 비해 유일하게 현저성을 가지지 않는 특이성이 존재하기 때문에 나타난 결과로 해석할 수 있다.