• Title/Summary/Keyword: Physical dimensions

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Investigation the tilling imbalance and dimensional variations of multi-cavity injection molded parts (다수 캐비티의 사출성형품에서 충전의 불균형과 치수편차의 고찰)

  • Kang, M.A.;Kim, Y.K.;Kim, J.M.;Lyu, M.Y.
    • Proceedings of the Korean Society for Technology of Plasticity Conference
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    • 2007.10a
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    • pp.266-270
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    • 2007
  • Small injection molded articles such as lens and mobile product's parts are usually molded in multi-cavity mold. The problems occurred in multi-cavity molding are flow imbalance among the cavities. The flow imbalance affects on the dimensions and physical properties of molded articles. First of all, the origin of flow imbalance is geometrical imbalance of delivery system. However, even the geometry of delivery system is balanced well the cavity imbalance is being developed. This comes from the unsuitable operational conditions of injection molding. Among the operational conditions, injection speed is the most significant process variable affecting the filling imbalances in multi-cavity injection molding. In this study, experimental study of flow imbalance has been conducted for various injection speeds and materials. Also, the filling Imbalances were compared with CAE results. The dimensions and physical state of multi-cavity molded parts were examined. The results showed that the filling imbalances vary according to the injection speed and flow property of resins. Subsequently, the imbalanced filling and pressure distribution in the multi-cavity affect on the dimensions and physical states of molded parts.

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Concept Development of Grief-Focusing on the Process of Spousal Bereavement (애도 개념개발 - 배우자 사별과정을 중심으로 -)

  • Lee, Mi-Ra
    • Journal of Korean Academy of Nursing
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    • v.37 no.7
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    • pp.1119-1130
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    • 2007
  • Purpose: This study was done to develop the concept of grief focusing on the process of spousal bereavement in Korea. Methods: The Hybrid model was used for analysis according to the 3 phases. An extensive literature review was done for the Theoretical phase. In-depth interviews were conducted with 15 participants whose spouses died within the past 3 years in the Field phase. In the Final analytic phase, the results in the Theoretical and the Field phases were compared, analyzed, and integrated according to the process of grief. Results: The antecedent of the concept of spousal grief was spousal death. The dimensions of grief were classified to inner dimensions related to oneself, relational dimensions related to family and others, and existential dimensions related to the meaning of being. The attributes of grief were physical suffering, decline of cognitive ability, heartbreaking sorrow, expectations and conflicts of a new life, social stigma, dependence on or resentment towards God, etc. The empirical referent of grief was physical, psychological, social, and spiritual health status. The grieving progressed through 3 phases-shock-emancipation, suffering, and integration. Conclusion: Nurses should recognize the importance of their unique position as supporters for grievers, and try to assess individual characteristics and to provide tailored nursing interventions.

A Research on Standard Dimensions for Fresh Cut Flower Packages (절화류의 포장규격에 관한 연구)

  • Ha, Young-Sun;Kim, Jong-Kyoung
    • KOREAN JOURNAL OF PACKAGING SCIENCE & TECHNOLOGY
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    • v.12 no.1
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    • pp.1-5
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    • 2006
  • Increasement of total cost during distribution chain requires packaging standardization to reduce extra handling and delays at transshipment point. In Korea, high valued agricultural products to export are most often shipped by air freight. Fresh flowers, in particular, the need to set package standard for air palletization are strongly recommended. This study tried to find an optimum standard dimensions for export packages. After extensive research on combinations of various flower dimensions, package dimensions and pallet sizes, we found that 96 inches pallet was most adequate for international air freight. Based on the results, new 40 standard package dimensions were introduced and stacking efficiencies were calculated.

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Apparel Quality Evaluation Process bused on Means- Bnd Chain Theory: A Theoretical Study (수단-목적 사슬 이론을 이용한 의복품질 평가과정에 잔한 이론적 연구)

  • 오현정;이은영
    • Journal of the Korean Society of Clothing and Textiles
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    • v.22 no.4
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    • pp.452-459
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    • 1998
  • The purpose of this study was to discover a conceptual framework and evaluation process of apparel quality by means-end chain theory. The theoretical study was conducted to find out a conceptual framework and build a hypothetical evaluation process model of apparel quality. Apparel quality was perceived associative network called a means-end chain and was evaluated in several stages. A conceptual framework of apparel quality evaluation was organized into hierarchical relationships among four different dimensions: physical attribute, physical function, instrumental performance, and expressive performance. The means-end structure linked tangible physical attributes and function to more abstract instrumental and expressive performance. A hypothetical evaluation process model linked dimensions of apparel quality to the selected means-end relationship. Different consumers had different means-end chains for the same apparel. Therefore different subjects are likely to have different evaluation paths. From this study we can suggest an evaluation process model of apparel quality.

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Development of Korean Male Body Model for Computational Dosimetry

  • Lee, Ae-Kyoung;Choi, Woo-Young;Chung, Min-Suk;Choi, Hyung-Do;Choi, Jae-Ick
    • ETRI Journal
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    • v.28 no.1
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    • pp.107-110
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    • 2006
  • The dimensions of the human body vary by age, sex, and race. The internal structure and outer dimensions of a body exposed to an electromagnetic field is important for accurate dosimetry. The average physical size of Korean adult males between the ages 18 to 24 was investigated, and a male volunteer was selected whose physical condition is within the physical standards, ${\pm}5%$. Magnetic resonance images and partially computerized tomography images of the volunteer were acquired. The intervals between the transverse images were 1 mm for the head and 3 mm for the rest of the body. About 30 different tissues were manually classified by an anatomist on the raw images, and the segmented images were implemented in the form of a text file appropriate for numerical formulation.

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The Relationship Between a Physical Therapist's Sense of Humor and Empowerment (물리치료사 유머감각과 임파워먼트와의 관계)

  • Lee, Kyung-Hyun;Lee, Jung-Hyun;Kim, Ki-Tae;Kim, Sang-Jae;Lim, Ji-Young;Kim, Ji-Hoon;Son, Kyung-Hyun
    • Journal of Korean Physical Therapy Science
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    • v.21 no.1
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    • pp.1-12
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    • 2014
  • Purpose : This study aims to provide fundamental information for increasing a physical therapist's empowerment and suggesting effective ways to incorporate humor into the physical therapist's organizations by investigating a level of perceived sense of humor and empowerment, as well as examining the relationship between them. Method : This study was conducted in the country's 9 general hospitals, 11 rehabilitation hospitals, 20 clinics. The data of general characteristics, sense of humor, and empowerment were collected from 1 August 2012 to 25 August 2012. A total of 300 clinical instructors were distributed and collected. The call response rate was 94.7%(n=284). The collected data were analyzed by spss/pc + 12.0 Result : 1. The mean score of the physical therapist's sense of humor was $56.53{\pm}05.58$ out of 84 and each of the sub-dimensions were scored in order of emotional expressiveness, liking of humor and metamessage sensitivity. 2. The mean score of the physical therapist's empowerment was $56.67{\pm}12.72$ out of 84 and each of the sub-dimensions scored in order of meaning, competence, self-determination and impact. 3. There was no significant difference between the sense of humor and the empowerment(r=0.093, p=0.118). 4. There were no significant difference in sense of humor. 5. There were significant differences in the levels of the empowerment by sex, marriage, workers satisfaction, age, attainment in scholarship, workplace, and duration of work. Conclusion : Although there was no significant difference between the sense of humor and the empowerment. the sub-dimension of human preference was significant.

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Measuring Workload of Home Visit Care Activities Using Relative Values (방문요양 행위 업무량의 상대적 가치 측정)

  • Han, Seong-Ok;Park, Eun-Cheol;Kang, Dae-Ryong;Kang, Im-Ok
    • Journal of Preventive Medicine and Public Health
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    • v.41 no.5
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    • pp.331-338
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    • 2008
  • Objectives : The purpose of this study was to measure the workload of home visit care activities and their relative values. This study examined also factors that affect the workload of home visit care activities. Methods : The participants of this study were 126 home-helpers of 50 home visit care agencies at the 2nd Long-term Care Insurance Demonstration Project. The workload of home visit care activities was divided into total work and four dimensions ; physical efforts, mental efforts, stress and time. Home visit care activities consisted of four categories with 24 items. We used magnitude estimation method to measure their relative values of the four dimensions. The participants answered the relative values of each activities based on the reference service. We used the activity for supporting their elderly's evacuation as the reference service. Results : Most of the respondents were over 40 years old female. They consumed most their time supporting elderly's going out. They consumed their highest physical, mental efforts, and stress for activities of coping with emergency situation. The Pearson correlation coefficients showed significant relationships between workload and each dimensions. This study showed that all four dimensions are statistically significant predictors of workload of home visit care activities. Also, we found that the home-helper's career affects the workload of home visit care activities. Conclusions : The workload of home visit care activities could be explained by physical efforts, mental efforts, stress and time.

Preferred settings of the VDT workstation dimensions posture (VDT 작업을 위한 최적치수 및 작업자세에 관한 연구)

  • 박수찬;이남식;장명현;김철중
    • Journal of the Ergonomics Society of Korea
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    • v.10 no.2
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    • pp.3-13
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    • 1991
  • As the VDT work constrains work postures because of its work characteristics. VDT worksta- tions should be properly designed so as to be fitted to various types of physical conditions of op- erators. Therefore, in this study, the preferred settings of VDT wrokstation dimensions of operators. Therefore, in this study, the preferred settings of VDT workstation dimensions and work postures were studied in order to determine the appropriate dimensions and the work postures for VDT operators which will alleviate the musculoskeletal troubles or visual fatigue. The scpoe of the study is as follows. 1. Measurement and analysis of the preferred settings of the height of workstation, keyboard, seat, and screen among the experienced VDT operators. 2. Anaysis of the relationship between the preferred settings of workstation height and the seat height control among the experienced VDT operators. 3. Analysis of the work postures of the experienced VDT operators.

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Classification of body types of male wheelchair users (휠체어를 사용하는 성인 남성의 체형분류)

  • Park, Kwang-Ae;Kwon, Young-Ah
    • Fashion & Textile Research Journal
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    • v.11 no.4
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    • pp.621-632
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    • 2009
  • The purpose of this study was to analyze the physical characteristic of the wheelchair users by directly measuring the disabled men who use a wheelchair and to classify body types. The subjects were 178 male wheelchair users 20-69 years range of age. The results of this study were as follows. The cause of disability was classified into four groups; Poliomyelitis(P), Spinal Cord Injury(S), Cerebral Palsy(C), Amputee(A). There was a remarkable difference in the physical characteristic of the wheelchair users due to their cause of disability. A have greater values in all the dimensions. P have the largest drop values and smaller values in the lower body dimensions. S have greater values in the height of upper body trunk, back interscye length, and chest circumference, whereas smaller values in waist front length and thigh circumference. C have smaller values in most body dimensions except circumference of lower limb. By the factor analysis on the anthropometric data came out the result to be eight factors. The result of cluster analysis using factor scores shows the body types of wheelchair users can be divided into four body types; PY, RBB, TBP, RA. PY type is short and has the largest drop values, whereas RBB type tends to have the smallest drop values. TBP type is tall and the torso tends to be larger than those of the other types. RA type has smaller values in front body dimensions and moderate values in other dimensions. The diversity in body types should be considered among the wheelchair users.

Affective Metaphor of Dimensional Perception (물리적 차원 지각에 대한 감성 메타포)

  • Mun, Sung-Chul;Whang, Min-Cheol;Lee, Jung-Nyun;Kim, Jong-Hwa;Kim, Ji-Hye
    • Journal of the Ergonomics Society of Korea
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    • v.30 no.1
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    • pp.187-193
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    • 2011
  • Objective: The aim of this study was to investigate the association between conceptual metaphors of affect and physical dimensions. Background: The evidence that affect is unconsciously linked to physical dimensions(e.g., position and color) has been obtained in western cultures. However, in eastern cultures, especially, in Korea, it has been seldom tested. It is indispensable to examine whether or not cultural differences exist for better understanding of the conceptual metaphors. Method: 50 positive and 50 negative words were adopted from previous studies in order to determine the relationship between physical domains and abstract affect. Three hypotheses were tested in this study: (1) Good is up. (2) Good is bright. (3) Good is right(for right-handers). The automatic association between valence(positive vs. negative) and vertical position (up vs. down) was investigated in experiment 1, in which 100 words were randomly presented on either the top or the bottom of a LCD screen and the evaluation time of the presented word was recorded. The unconscious association between valence and color(white and black) was examined in experiment 2, where each word was randomly presented in either white or black. Lastly, we tested whether right-handers tend to associate rightward space with positive ideas and leftward space with negative ideas. Results: Reaction time was faster when words were presented in metaphor congruent domains(e.g., 'positive words on the top, in bright color, and on right space vs. negative words on the bottom, in dark color, and on left region) than when they were shown in metaphor incongruent domains. Conclusion: The results might give the groundwork for various directions in further understanding perception, emotion, and behavior. Application: This study may provide useful points to GUI designers and service developers if further studies enhanced in validity and reliability are followed.