• Title/Summary/Keyword: measuring tools

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A Study on Measurement of In-Plane Displacement using ESPI in Mechanical Structure under torsional load (비틀림하중을 받는 기계구조물의 ESPI를 이용한 면내변위 측정에 관한 연구)

  • Jang, Seok-Won;Lee, Hak-Ju;Choe, Eun-O;Jeong, Chan-Hui
    • Transactions of the Korean Society of Mechanical Engineers A
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    • v.26 no.4
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    • pp.693-700
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    • 2002
  • Recently, the mechanical structures applied to many industrial products, especially in electronic products, appear to be miniaturized and complicated. This trend makes it difficult to analyze the stress distribution of those mechanical structures and generates new challenges for precise measurement of strain. In order to solve this measurement problem many optical measurement techniques have been suggested. Among those, the ESPI(Electronic Speckle Pattern Interferometry) has been considered as one of the most useful tools. But the shortage of recognition and difficulties of measurement have limited its industrial applications in spite of its excellent capabilities. Therefore in this study, not only the verification of the FEA result but the enhancement of industrial application of ESPI was tried by measuring the in-plane displacement of mechanical structure with ESPI, which is difficult to be measured with strain gauge.

A Study on w6/w3 and P/M/S Ratios of Fatty Acids Ingested by University Students (일부 대학생의 지방산 섭취량과 섭취지방산의 w3, w6계 지방산 및 P/M/S 비율에 관한 연구)

  • 오경원;박계숙;김택제;이양자
    • Journal of Nutrition and Health
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    • v.24 no.5
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    • pp.399-407
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    • 1991
  • The purpose of this study was to estimate the intake of individual fatty acid and eventually to contribute to the establishment of dietary guidelines and recommendations of fatty acids for the Koreans. The subjects consisted of female college students aged 20 to 29 years old. Their dietary intake was assessed twice. in summer and in winter, by means of a 24-hour dietary recall method. Food models and other measuring tools were also used. Concentrations of serm total triglyceride, total cholesterol and HDL-& LDL-cholesterol were measured. The subjects consumed 12.3g of polyunsaturated fatty acids, 14.3g of monounsaturated fatty acids and 14.99g of saturated fatty acids per day The ratios of polyunsaturated/saturated fatty acids( P/S) and polyunsaturatedimonounsaturatedi saturated fatty acids (P/M/S) taken by the subjects were 0.8/1.0 and 0.8/l.0/l.0, respectively. The ratio of w61w3 fatty acids was found to be 8.3/l.0. All of these values seem to fall in the desirable range. The percentages of total calorie from carbohydrate. fat and protein were 59.4%, 23.4% and 17.2%, respectively. The concentrations of serum total triglyceride, total cholesterol. HDL-cholesterol and LDL-cholesterol were 59.3ms/dl, 192.7mg/dl, and 59.0mg/dl, and 121.9mg/dl., respectively.

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Factors Influencing Sick Role Behavior Compliance in Patients on Hemodialysis (혈액투석 환자의 역할행위이행 영향요인)

  • Jeon, Hyun Mi;You, Hye Sook
    • Journal of Korean Academy of Fundamentals of Nursing
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    • v.26 no.1
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    • pp.23-31
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    • 2019
  • Purpose: This study was a descriptive survey research to identify the factors that influence sick role behavior compliance in patients on hemodialysis. Methods: Structured surveys were used to collect data from 170 patients who are on hemodialysis three times a week through outpatient care at a university hospital located in G City using tools measuring resilience, family support, and sick role behavior compliance. Data were analyzed using descriptive statistics, t-test, one-way ANOVA, Pearson's correlation coefficient, and Stepwise multiple linear regression. Results: The results showed that factors that influenced sick role behavior compliance in the subjects were in the order of family support (${\beta}=.27$, p<.001), age (${\beta}=.27$, p<.001), and resilience (${\beta}=.23$, p=.003). Resilience, family support, and sick role behavior compliance were positively correlated. Factors influencing hemodialysis patients' sick role behavior compliance included family support, age, and resilience. These variables explained 30.2% of the variance in sick role behavior compliance. Conclusion: Based on these results, care intervention and the development of a training program that involves family in the treatment plan and process to support and encourage patients are needed to increase the sick role behavior compliance in patients on hemodialysis.

Current Status of Interprofessional Education-related Research within Korean Nursing Literature (전문직 간 교육에 대한 국내 간호연구 현황 분석)

  • Ahn, EunKyong
    • Journal of Industrial Convergence
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    • v.19 no.3
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    • pp.75-82
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    • 2021
  • This study was conducted to analyse interprofessional education(IPE)-related research within Korean nursing literature and suggest future directions for IPE research. For this, Five articles were included for final review. As a results, IPE in nursing research has received attention since 2017. Studies have confirmed that no clear definition of IPE concepts has been established in nursing education. Key findings regarding IPE were categorized into Awareness of IPE, Effects of IPE as an intervention and Validation of Korean version tools measuring effectiveness of IPE. The collaboration of nurses and other healthcare professionals is essential to providing quality healthcare. Therefore, considerable effort should be made to define the concept of IPE and activate research to effectively apply it to nursing education and practice in Korea.

Determinants of Writing Research According to International Standards in Web of Science Journals

  • Al Sawy, Yaser Mohammad Mohammad
    • International Journal of Computer Science & Network Security
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    • v.21 no.3
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    • pp.94-102
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    • 2021
  • The study aimed to define all the main determinants of writing a research paper in an integrated manner within the requirements of the science network journals, by introducing scientific research and the steps of writing a research paper, starting from choosing the title to writing the abstract, identifying the research problem, questions, importance and objectives of the study, how to choose previous studies, research methodology and tools, discussion and results In addition to determining the acceptable percentage of plagiarism for science network journals, recommendations, choosing appropriate references and choosing the appropriate references, in addition to determining the acceptable percentage of plagiarism for the journals of the Network of Science, the researcher used the method of analytical investigative research to find out the axes of the study and analyze different reference citation methods to deal with different sources of information (articles-books-theses-conference works-reviews), In addition to studying the most important international programs for measuring plagiarism ratios that are accredited within the journals of the Science Network, and the study concluded that the researcher must present original and innovative results, add an integrated and logical work, take into account all the scientific conditions in the design of the research, its steps and ethics, and take into account the international standards in citing Reference, taking into account the rates of plagiarism within Web of Science journals.

Development of job satisfaction scale for dental hygienist (치과위생사의 직무만족에 관한 측정도구 개발)

  • Park, Ji-Hyeon;Lim, Soon-Ryun
    • Journal of Korean society of Dental Hygiene
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    • v.20 no.6
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    • pp.913-924
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    • 2020
  • Objectives: This study was conducted to develop a dental hygienist's job satisfaction scale and to evaluate its validity and reliability. Methods: A total of 34 preliminary questions were composed based on the components commonly defined in previous studies and in-depth interviews. Results: The results of the study were practice activity, professional satisfaction, income, working conditions, patient relations, and co-worker relations using the exploratory factor analysis. Goodness of fit of the model assessed using confirmatory factor analysis generally met the criteria. On verification of the internal consistency, the Cronbach's alpha for the factors were as follows: 0.821 for practice activity, 0.822 for professional satisfaction, 0.847 for income, 0.765 for working condition, 0.743 for patient relations, and 0.747 for co-worker relations, which implied that the measurement tool was reliable. Through exploratory and confirmatory factor analyses, a total of 24 items for six factors: six items for practice activity factors, four items for professional satisfaction, three items for income, four items for working conditions, three items for patient relationships, and three items for coworker relations. Conclusions: Based on the aforementioned results, the validity and reliability of the dental hygienist's job satisfaction measurement tool were satisfactory. Thus, it may be used for assessing the job satisfaction of the dental hygienists in future.

Types and Characteristics of Digital Anthropometric Methods (디지털 인체 계측 방법의 유형 및 특성)

  • Kim, Rira
    • Journal of Fashion Business
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    • v.25 no.5
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    • pp.88-98
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    • 2021
  • In this study, the characteristics of digital anthropometric methods were determined with case studies. These methods were broadly classified into two categories: non-wearable and wearable. Then, these categories were further classified into four types: 3D Scanning, mobile app, smart clothing, and smart tool Among the non-wearable types, the "3D scanning" technique was based on the use of 3D hardware equipment. With this technique, the body shape was measured and the internal body information was obtained. Therefore, it is used in fields of healthcare and fitness. Among the wearable types, "Smart clothing" involves a special clothing that measures human body and a smartphone application. Both the components are linked to a fashion platform, which is based on the measured sizes that help shoppers. The "Smart tool" has the characteristic of measuring only with smart tools and smartphone applications; it does not involve the measurement of images. The common advantage of digital anthropometric methods are as follows: they reduce the time and cost of measurement by enabling self-measurement. Moreover, simple measurements are used to determine the size of anthropometry. Thereafter, it accumulates this data to track the continuous changes in size. From an industrial point of view, digital anthropometric technology should be used to increase sales. The on-demand market can be expanded as global consumers would throng the Korean fashion market. For the consumer, an avatar should be created to fit the user's size. This would provide a fun experience to the user.

The Relationship between Organization Innovation Capabilities and Export Performance of Technological Innovation type SMEs (혁신형 중소기업의 조직혁신역량이 기업의 수출성과에 미치는 영향)

  • Jung, Jae Hoon;Oh, Ka Young
    • Asia-Pacific Journal of Business
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    • v.13 no.3
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    • pp.493-504
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    • 2022
  • Purpose - This study investigate the effect of innovative capacity on corporate export performance and moderating flexibility. Design/methodology/approach - For this, hypotheses were established by reviewing previous studies and an empirical analysis was conducted for testing. Using SPSS 22.0, a frequency analysis of related variables was conducted. Through an exploratory factor analysis, validity and reliability tests of measuring tools were conducted and a descriptive statistics was analyzed for collected data result and hypotheses testing. Findings - Finally, with a verified model, the hypotheses and the moderating effects were tested. The results are as follows; The innovationa capacities have a positive effect on export performance and flexibility However, the flexbilitiy was not moderator in the relationship between innovative capacity and export performance. Research implications or Originality - According to the results above, this study presents directions to improve export performance of technological innovative type SMEs. The innovative capabilities, marketing capacity, organization innovative capacity and process innovative capactity, has an positive effect on

Design and Implementation of an Absolute Position Sensor Based on Laser Speckle with Reduced Database

  • Tak, Yoon-Oh;Bandoy, Joseph Vermont B.;Eom, Joo Beom;Kwon, Hyuk-Sang
    • Current Optics and Photonics
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    • v.5 no.4
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    • pp.362-369
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    • 2021
  • Absolute position sensors are widely used in machine tools and precision measuring instruments because measurement errors are not accumulated, and position measurements can be performed without initialization. The laser speckle-based absolute position sensor, in particular, has advantages in terms of simple system configuration and high measurement accuracy. Unlike traditional absolute position sensors, it does not require an expensive physical length scale; instead, it uses a laser speckle image database to measure a moving surface position. However, there is a problem that a huge database is required to store information in all positions on the surface. Conversely, reducing the size of the database also decreases the accuracy of position measurements. Therefore, in this paper, we propose a new method to measure the surface position with high precision while reducing the size of the database. We use image stitching and approximation methods to reduce database size and speed up measurements. The absolute position error of the proposed method was about 0.27 ± 0.18 ㎛, and the average measurement time was 25 ms.

Burning Characteristics of Wood-based Materials using Cone Calorimeter and Inclined Panel Tests

  • Park, Joo-Saeng;Lee, Jun-Jae
    • Journal of the Korean Wood Science and Technology
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    • v.30 no.3
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    • pp.18-25
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    • 2002
  • Research to discuss the fire performance of materials requires tools for measuring their burning characteristics and validated fire growth models to predict fire behavior of the materials under specific tire scenarios using the measured properties as input for the models. In this study, burning characteristics such as time to ignition, weight loss rate, flame spread, heat release rate, total heat evolved, and effective heat of combustion for four types of wood-based materials were evaluated using the cone calorimeter and inclined panel tests. Time to ignition was affected by not only surface condition and specific gravity of the tested materials but also the type and magnitude of heat source. Results of weight loss rate, measured by inclined panel tests, indicated that heat transfer from the contacted flame used as the heat source into the inner part of the specimen was inversely proportional to specific gravity of material. Flame spread was closely related with ignition time at the near part of burning zone. Under constant and severe external heat flux, there was little difference in weight loss rate and total heat evolved between four types of wood-based panels. More applied heat flux caused by longer ignition time induced a higher first peak value of heat release rate. Burning characteristics data measured in this study can be used effectively as input for fire growth models to predict the fire behavior of materials under specific fire scenarios.