• Title/Summary/Keyword: qualitative research methods

Search Result 1,876, Processing Time 0.03 seconds

Kinematic Analysis in Reaching Depending on the Localized Vibration Duration in Persons With Hemiparetic Stroke (국소 진동자극이 편마비 뇌졸중 환자의 팔 뻗기 수행에 미치는 영향에 대한 운동학적 분석)

  • Yoo, Eun-Young;Park, Ji-Hyuk;Kwon, Jae-Sung;Cho, Sang-Yoon;Lee, Bo-Mi;Kim, Yeong-Jo;Kim, Jae-Nam;Kim, Sun-Ho
    • Therapeutic Science for Rehabilitation
    • /
    • v.7 no.3
    • /
    • pp.79-88
    • /
    • 2018
  • Objective : Localized vibration has been shown to have a positive effect on recovery of upper-limb motor function in patients with hemiparetic stroke, but there has been little research on kinematic analysis for qualitative changes in movement. This study investigated kinematic changes in elbow motion during reaching after localized vibration in persons with hemiparetic stroke. Methods : This study used a one-group, cross-over trial design. Ten chronic stroke patients randomly received localized vibrations on the affected biceps brachii for 5, 10, or 20 min, at 70 Hz. Kinematic analysis of reaching was measured using a 3-D motion analysis system. Variables included peak angular velocity, time to peak angular velocity, and movement units during elbow motion. Result : Affected side elbow motion during reaching was faster, smoother, and more efficient after 20 min localized vibration. Peak angular velocity increased (p<0.05), and time to peak angular velocity (p<0.05) and the movement unit were significantly decreased (p<0.05) during elbow motion for reaching. Conclusion : Localized vibration can improve kinematic components during reaching motion in persons with hemiparetic stroke.

Seismic AVO Analysis, AVO Modeling, AVO Inversion for understanding the gas-hydrate structure (가스 하이드레이트 부존층의 구조파악을 위한 탄성파 AVO 분석 AVO모델링, AVO역산)

  • Kim Gun-Duk;Chung Bu-Heung
    • 한국신재생에너지학회:학술대회논문집
    • /
    • 2005.06a
    • /
    • pp.643-646
    • /
    • 2005
  • The gas hydrate exploration using seismic reflection data, the detection of BSR(Bottom Simulating Reflector) on the seismic section is the most important work flow because the BSR have been interpreted as being formed at the base of a gas hydrate zone. Usually, BSR has some dominant qualitative characteristics on seismic section i.e. Wavelet phase reversal compare to sea bottom signal, Parallel layer with sea bottom, Strong amplitude, Masking phenomenon above the BSR, Cross bedding with other geological layer. Even though a BSR can be selected on seismic section with these guidance, it is not enough to conform as being true BSR. Some other available methods for verifying the BSR with reliable analysis quantitatively i.e. Interval velocity analysis, AVO(Amplitude Variation with Offset)analysis etc. Usually, AVO analysis can be divided by three main parts. The first part is AVO analysis, the second is AVO modeling and the last is AVO inversion. AVO analysis is unique method for detecting the free gas zone on seismic section directly. Therefore it can be a kind of useful analysis method for discriminating true BSR, which might arise from an Possion ratio contrast between high velocity layer, partially hydrated sediment and low velocity layer, water saturated gas sediment. During the AVO interpretation, as the AVO response can be changed depend upon the water saturation ratio, it is confused to discriminate the AVO response of gas layer from dry layer. In that case, the AVO modeling is necessary to generate synthetic seismogram comparing with real data. It can be available to make conclusions from correspondence or lack of correspondence between the two seismograms. AVO inversion process is the method for driving a geological model by iterative operation that the result ing synthetic seismogram matches to real data seismogram wi thin some tolerance level. AVO inversion is a topic of current research and for now there is no general consensus on how the process should be done or even whether is valid for standard seismic data. Unfortunately, there are no well log data acquired from gas hydrate exploration area in Korea. Instead of that data, well log data and seismic data acquired from gas sand area located nearby the gas hydrate exploration area is used to AVO analysis, As the results of AVO modeling, type III AVO anomaly confirmed on the gas sand layer. The Castagna's equation constant value for estimating the S-wave velocity are evaluated as A=0.86190, B=-3845.14431 respectively and water saturation ratio is $50\%$. To calculate the reflection coefficient of synthetic seismogram, the Zoeppritz equation is used. For AVO inversion process, the dataset provided by Hampson-Rushell CO. is used.

  • PDF

Emotion and Sensibility Engineering Appraisal Methodology for Selecting FormFactor in Early Mobile Phone Design (휴대전화 초기설계에서 형태인자 선정에 대한 감성공학 평가방법론)

  • Cha Sung-Woon;Lee Kyung-Soo;Cho Hyun-Seung;Kim Min-Soo
    • Science of Emotion and Sensibility
    • /
    • v.9 no.1
    • /
    • pp.27-38
    • /
    • 2006
  • In the planning stage of mobile phone development, one of the most important considerations is to select a FormFactor properly to determine the strategy and Purpose of a Product. Up to now, the FormFactor has been selected only by intuitional and qualitative methods. In this study, the Appraisal Methodology using Sensibility Adjectives of Emotion and Sensibility Engineering was presented to suggest the systematic and rational framework in the field of FormFactor selection. First, we verified the conceptual FormFactors with Axiomatic Design and classified the Sensibility Adjectives into the verified FormFactors. When the FormFactor and classified Design Parameters (DP) were given to a designer, the designer implemented the preliminary designs and they were assessed and analyzed by the survey. With these processes, we were able to select the proper designs for FormFactors which were fit for the purpose of a product. This was caused by connecting the Axiomatic Design and tile Sensibility Adjectives. This study gave the possibilities that can be spread to the selection factors, except for the FormFactor, from now on.

  • PDF

Analysis of Menarche Experience and Raising of Need of Menarche Education (성인의 초경경험분석에 따른 국민학생을 위한 초경교육의 필요성 제기)

  • Kim, Jeong-Eun
    • Women's Health Nursing
    • /
    • v.1 no.2
    • /
    • pp.222-243
    • /
    • 1995
  • The purpose of this study was to develop concrete and in-depth knowledge about menarche and to raise the need of menstrual education. The data were collected from purposively sample 34 women from twenties to forties from April 27 to October 10, 1994. Semi-structured intensive interviews were done and these qualitative data were analysed with "Ethnograph" computer program. The results of the study were as follows : 1. The experience of menarche could be classified into two main groups, which were positive and negative response to menarche. The negative experiences were to be shameful, tearful, scared of the phenomena and thought as a kind of punishment for guilt or confused menarche with other symptoms of diseases. On the contrary, the positive experiences were to be proud of physical maturity and to think that is was wonderful, miraculous and to perceive it as a warm experience. 2. The experience of menarche was influenced by various factors. They were the knowledge about menstruation, the quality and amount of informations, the time of menarche, the environmental factors, the response of significant others toward menarche. The experience of menarche could be positive or negative according to these factors. 3. The previous information sources about menstruation could be significant others, school education and mass-media. The significant others were mothers, sisters, friends and the person in charge of school sex education such as school nurses, home economics, military drill and athletics of teachers. And mass-media included sex education booklets, nursery tales, TV programs, and publicity activities of sanitary napkin companies. 4. The opinions of the subjects about the proper time of menarcheal education could be grossly classified into two groups. The first was active approach toward children when they were in elementary school. The second was passive approach which postponed the time until the child ask about it, because it would be awkward for them to discuss about the topic. 5. The participants thought that the ideal methods of menarche education would be systematic school education programs, open discussion with daughters, audio-visual teachings, or practical education in everyday life. 6. The contents of the menarche education based on the participants' opinions, would be positive details about meanings and functions of menstruation. And it would be desirable if the attitudes of the person in charge of education could be positive, open-hearted, and favorable toward menstruation.

  • PDF

Development of Work Stress Measurement Tool for Academic Librarians (대학도서관 사서의 직무스트레스 측정 도구 개발)

  • Lee, Jong Yoon;Cho, Hyun Yang
    • Journal of the Korean Society for Library and Information Science
    • /
    • v.47 no.3
    • /
    • pp.181-205
    • /
    • 2013
  • The purpose of this study is to develop a job-stress scale for librarians who work in university libraries. The study was first conducted by analyzing existing representative job-stress scales that are used domestically and internationally. To understand the characteristic of particular job stress that academic librarians have, the in-depth interview among qualitative research methods was selected, and 15 librarians who work at a 4-year system university libraries participated in this study. Based on the results of the questionnaire survey, the reliability and validity were verified. To analyze the validity, exploratory factor analysis was carried out. To extract factors, principal component analysis was used. To extract factors, principal component analysis was used. For the rotation method, a varimax rotation was applied. A tertiary measurement tool with a total of 46 questions for 11 factors was developed after removing measurement questions that were rejected as a result of the analysis. As a result of factor analysis on the tertiary measurement tool, 11 factors were extracted. Those 11 factors include 'peer relation conflict factor(factor 1)', 'superior-subordinate relation conflict factor (factor 2)', 'work compensation evaluation factor(factor 3)', 'emotional labor factor(factor 4)', 'physical environmental factor(factor 5)', 'employment stability(factor 6)', 'job demand factor(psychological) (factor 7)', 'decision-making and responsibility factor(factor 8)', 'work complexity factor(factor 9)', 'work boundary conflict factor(factor 10)', and 'job demand factor(physical)(factor 11)'.

Parenting experiences of mother in children with developmental disabilities (발달장애 아동 어머니의 양육 경험)

  • Yeo, Yeong-Nam;Park, Hae In;Shin, Jeoung-Soon
    • Journal of the Korea Academia-Industrial cooperation Society
    • /
    • v.19 no.8
    • /
    • pp.283-294
    • /
    • 2018
  • The purpose of this study is to understand and describe in depth the meaning of parenting experiences of mothers with children with developmental disabilities through phenomenological methods. Participants of this study were selected by convenience sampling 11 mothers who were taking care of children with developmental disabilities who were being treated at the Welfare Center for the Disabled in C city. Data were collected from February to April, 2018 by using in-depth interview and tape-recording. The interview data were analyzed by the phenomenological analysis method of Giorgi. As the result of analysis, the following seven constituents were emerged; Regreting to delay the uncertain diagnosis, Difficulty in accommodating children with disabilities, Unbearable gaze around, Family disagreements due to children with disabilities, Adopting and dedicated to child care for disabled childre, Tiring of raising children with disabilities, Accepting children with disabilities. In conclusion, the parenting attitude of mother with developmental disability is influenced not only by the children with developmental disabilities but also by the social contact opportunities of daily life and interpersonal relationship including mothers' emotional stability and social isolation, It is considered that medical and welfare should be systematically introduced for physical, psychological and emotional support for mothers.

A Study on the Effective VTS Communications Analysis by the Method of VCDF in Busan Port (VCDF 방식을 통한 효율적인 VTS 통신 데이터 분석에 관한 연구 - 부산항을 대상으로 -)

  • Kim, Bong-Hyun;Park, Young-Soo
    • Journal of the Korean Society of Marine Environment & Safety
    • /
    • v.22 no.4
    • /
    • pp.311-318
    • /
    • 2016
  • The VTS concept was located as a principal methods of maritime safety administration in world's major harbors and expected to become the pivotal role for the future of the maritime and harbor society with e-Navigation epoch. If recent limelight concept of big-data has been included in aspect of information gathering and analysis with various studies, it's required advanced studies to improve the information analysis capability and application range of the data that can be mining by the VTS. In this study, contrast to other studies that aimed quantitative analysis as communication number, it can be mining the time information and each of the communication VTS for the target vessel, including qualitative analysis, such as the purpose or the type of communication. This comparison across multiple items of the collected information, and presenting the VTS data mining model (VCDF) that can be analyzed for the purpose of analyzing way, type and number of communication by ship's type, also number of violations through VTS communication. First, In Busan port case, it shows frequently information service and shows frequently communicating with particular types of vessels. Second, Passive VTS carried out notwithstanding many kinds of traffic violations due to communication congestion. This arranged information can be used as data for the analysis, as possible the level of traffic for VTSO situational awareness, which pointed to the 'workloads' in 'IALA Guideline' and could be used as a database for future research of e-Navigation.

Korean World Cup soccer event sporting character of the preference factor analysis (한국인의 월드컵 축구 이벤트 스포츠 캐릭터 선호요인 분석)

  • Son, Jeoung-A;Kim, Heun-Min
    • Journal of the Korea Academia-Industrial cooperation Society
    • /
    • v.12 no.6
    • /
    • pp.2477-2488
    • /
    • 2011
  • The study of the Korean World Cup soccer event sports what is the character's preference factors were analyzed inductively. For this purpose the following research methods were used. First, the target for the study of the D City 10, 20, 30, 40 respectively 30 patients were sampled. World Cup soccer event of the 12 sports chosen for frequency analysis of characters, the final four characters for the analysis of qualitative data were collected from questionnaires 'What aspect of your character do you like this?' that consists of an open survey conducted by Was. As a result, about World Cup chukguk character of the sports people have a preference factors were altered by age, by comprehensively, the Korean people in terms of the five characters and related factors that have in common, which prefer oehyeongseong, internality, Meaningfulness, diversity, and specificity was. Specifically, the 'oehyeongseong' the cute look or exercise (soccer) would be good to see such a varied and colorful, with friendly materials, including a preference factor, and 'internality' and the friendly and patriotic images, meaning Star 'in football and that implies a special meaning was preferred. Finally, the specificity due to the food culture in Korea prefer rooting factors were analyzed.

Examination of the Lives of Professional Golfers Growing to Excellent Sports Leaders (우수 스포츠지도자로 성장하는 프로골퍼의 삶 탐색)

  • Kim, Dong-Kee
    • Journal of the Korean Applied Science and Technology
    • /
    • v.37 no.2
    • /
    • pp.303-317
    • /
    • 2020
  • The purpose of this study is to conceptualize the process of formation by the exploration of the lives of professional golfers who grow to excellent sports leaders, categorize the concept and suggest models between categories. In order to reveal in depth the change process of the job formation, the 'grounded approach' as a qualitative study was used as a the methodological frame of this study, and snow sampling, one of nonrandom sampling was used for the selection method of the study participants. 10 study participants who are able to make positive self-expression and talk with the researcher were selected. Through grounded approach appropriate for this process research, this study could acquire following results. First, through the casual condition that is the exploration of the lives of professional golfers growing to excellent sports leaders, it connected to the central phenomena of professional instruction methods and education belief as golf leaders. In this process, the changes as new experiences for the charm of the new job and relationship formation influence as the function of a contextual condition. In addition, golf leaders tried to become a more completed golf leader through self-efforts for development and expertise attainment according to the their own situations as well as belief, and they have established the lives of firm golf leaders through the process. Second, as a result of the changes of their lives as professional golfers growing to excellent sports leaders, the paradigm of grounded approach which is abstracted as total 141 concepts, 17 subcategories, and 11 superordinate categories were composed.

Quantitative Evaluations for Impressions of Landscape and Soundscape about Traditional Area in Asan City (아산시의 전통적인 지역에 대한 경관과 소리경관의 정량적 인상평가)

  • Yim, Dong-Kyun;Sugiyama, Kazuichi;Kim, Eung-Nam
    • The Journal of the Korea Contents Association
    • /
    • v.16 no.5
    • /
    • pp.520-532
    • /
    • 2016
  • In this paper, we propose a novel method to analyze and quantitatively evaluate the impression of landscapes and soundscapes about traditional area of Chungnam Asan city in Korea. For this, we collated data about impression evaluation of Korean and Japanese students and, based on these result, we proved the validity and usefulness of the evaluation system that we proposed through this study. The research process conducted in this study as follows: first of all, we had selected five traditional places of interest in Asan City, and investigated various conditional elements of the area including soundscapes which is forming the landscape using video camera. And we made both Korean and Japanese students evaluate the impression for these videotaped landscape data through using the SD(semantic differential) method. And then, we quantified these qualitative data through applying the quantification theory and cluster analysis method to them. Though this process, we could obtain both data as a result derived by classifying each sample and categorizing levels of those impression evaluation. Because of totally difference between those two analyzing processes, which one is for sample classification and the other is for determining impression level, we could validate the usefulness of our evaluation system through conducting comparative analysis of results from both methods. Analysis showed that our novel evaluation system for landscape is effective and, in most part of the traditional landscape, Japanese students' responses are different far from the Korean students' responses.