• Title/Summary/Keyword: Scale Effect

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Spatial Analysis of Wind Trajectory Prediction According to the Input Settings of HYSPLIT Model (HYSPLIT 모형 입력설정에 따른 바람 이동경로 예측 결과 공간 분석)

  • Kim, Kwang Soo;Lee, Seung-Jae;Park, Jin Yu
    • Korean Journal of Agricultural and Forest Meteorology
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    • v.23 no.4
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    • pp.222-234
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    • 2021
  • Airborne-pests can be introduced into Korea from overseas areas by wind, which can cause considerable damage to major crops. Meteorological models have been used to estimate the wind trajectories of airborne insects. The objective of this study is to analyze the effect of input settings on the prediction of areas where airborne pests arrive by wind. The wind trajectories were predicted using the HYbrid Single-Particle Lagrangian Integrated Trajectory (HYSPLIT) model. The HYSPLIT model was used to track the wind dispersal path of particles under the assumption that brown plant hopper (Nilaparvata lugens) was introduced into Korea from sites where the pest was reported in China. Meteorological input data including instantaneous and average wind speed were generated using meso-scale numerical weather model outputs for the domain where China, Korea, and Japan were included. In addition, the calculation time intervals were set to 1, 30, and 60 minutes for the wind trajectory calculation during early June in 2019 and 2020. It was found that the use of instantaneous and average wind speed data resulted in a considerably large difference between the arrival areas of airborne pests. In contrast, the spatial distribution of arrival areas had a relatively high degree of similarity when the time intervals were set to be 1 minute. Furthermore, these dispersal patterns predicted using the instantaneous wind speed were similar to the regions where the given pest was observed in Korea. These results suggest that the impact assessment of input settings on wind trajectory prediction would be needed to improve the reliability of an approach to predict regions where airborne-pest could be introduced.

A Study on Reinforcement of Fire Safety in Residential Spaces of Low-Income Classes (저소득계층 주거 공간 화재안전성 강화를 위한 연구)

  • Park, Nam-Kwon
    • Journal of the Society of Disaster Information
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    • v.17 no.4
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    • pp.882-889
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    • 2021
  • Purpose: The purpose of this study was to improve fire safety in Gosiwon, a residential space for the low-income class. Method: Problems appearing in the process of fire occurrence and damage were verified once again. In addition, we would like to suggest improvement measures through systematic discussions on blind spots. Results: As a result of examining the risk of cool fire, the causes of fire occurred in various ways. In addition, the possibility of radiant heat due to heat accumulation due to narrow rooms inside the Gosiwon was high. Also, it was found that the possibility of fire spread was high due to clothing and household goods. It was reconfirmed that the poor internal structure of a narrow indoor space had a significant effect on the spread of fire and the scale of damage as it tried to accommodate as many people as possible inside. Conclusion: It is necessary to complete the installation as soon as possible for Gosiwon where the simple sprinkler is not installed. For this, a stronger driving force from the government and local governments is needed. In addition, it will be necessary to discuss how to improve the spatial and structural fire vulnerabilities that appear due to the structural characteristics of the Gosiwon.

The Effect of Complex Korean Medicinal Treatment with Chuna Manual Therapy and Radiological Characteristics on 2 Cases of Chronic Pain after Spondylolisthesis Posterior Lumbar Fusion Surgery: Cases Report (척추전방전위증 요추 후방유합술 이후 만성통증 환자 2례를 대상으로 추나 치료를 적용한 한방복합치료 효과와 영상의학적 특성: 증례 보고)

  • Jeong, Hyeon-Gyo;Kim, Yu-Gon;Kim, Dae-Ho;Lim, Jin-Woong;Kim, Yong-Hwa;Kang, Deok;Jeong, Hwe-Joon;Shin, Kyung-Moon;Shin, Dong-Hoon;Yang, Jae-Woo;Oh, Ji-Hoon
    • The Journal of Churna Manual Medicine for Spine and Nerves
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    • v.16 no.2
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    • pp.79-86
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    • 2021
  • Objectives This study aimed to assess the role of complex Korean medicinal treatment with Chuna manual therapy in two patients with chronic pain after posterior lumbar fusion surgery. Methods A retrospective analysis was performed on 2 patients postoperatively based on their medical records. The surgery regions were verified using T2-weighted axial magnetic resonance imaging. Patients with chronic pain after spondylolisthesis posterior lumbar fusion surgery received complex Korean medicinal treatment with Chuna manual therapy during hospitalization. Numeric rating scale (NRS) in the degree of 0-10 and Oswestry disability index (ODI) were measured before and after treatment. Results Case 1 had an improved NRS score from 7 to 4, and Case 2 had an improved NRS score from 7 to 5. In addition, ODI score improved in both cases. Conclusions Complex Korean medicinal treatment with Chuna manual therapy is effective for relief from chronic pain after posterior lumbar fusion surgery.

A Numerical Study on the Step 0 Benchmark Test in Task C of DECOVALEX-2023: Simulation for Thermo-Hydro-Mechanical Coupled Behavior by Using OGS-FLAC (DECOVALEX-2023 Task C 내 Step 0 벤치마크 수치해석 연구: OGS-FLAC을 활용한 열-수리-역학 복합거동 수치해석)

  • Kim, Taehyun;Park, Chan-Hee;Lee, Changsoo;Kim, Jin-Seop
    • Tunnel and Underground Space
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    • v.31 no.6
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    • pp.610-622
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    • 2021
  • The DECOVALEX project is one of the representative international cooperative projects to enhance the understanding of the complex Thermo-Hydro-Mechanical-Chemical(THMC) coupled behavior in the high-level radioactive waste disposal system based on the numerical simulation. DECOVALEX-2023 is the current phase consisting of 7 tasks, and Task C aims to model the THM coupled behavior in the disposal system based on the Full-scale Emplacement (FE) experiment at the Mont-Terri underground rock laboratory. This study performs the numerical simulation based on the OGS-FLAC developed for the current study. In the numerical model, we emplaced the heater with constant power horizontally based on the FE experiment and monitored the pressure development, temperature increase, and mechanical deformation at the specific monitoring points. We monitored the capillary pressure as the primary effect inducing the flow in the buffer system, and thermal stress and pressurization were dominant in the surrounding rocks' area. The results will also be compared and validated with the other participating groups and the experimental data further.

Effect of Group Cognitive Orientation to Daily Occupational Performance (CO-OP) Intervention on the Occupational Performance Skills of Children With Cerebral Palsy (인지 기반 작업수행(Cognitive Orientation to daily Occupational Performance: CO-OP) 그룹 중재가 뇌성마비 아동의 작업수행기술에 미치는 영향: 사례연구)

  • Jeon, Joo Young;Park, Jin Hee;Kim, Geon Woo
    • The Journal of Korean Academy of Sensory Integration
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    • v.20 no.1
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    • pp.1-13
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    • 2022
  • Objective : The purpose of this study was to investigate the effects of group Cognitive Orientation to daily Occupational Performance (CO-OP) on the occupational performance and social interaction skills of children with Cerebral Palsy (CP). Methods : A single-case experimental study with an ABA design was conducted from April to June 2021, targeting three children with cerebral palsy who met the study selection criteria. The baseline period consisted of 3 intervention sessions until the data were stabilized, and the intervention period consisted of 10 sessions (once a week, 60 minutes/session). For comparison before and after the intervention, motor development, visual perception, and daily life behavior were evaluated. To evaluate the quality of each session, a performance quality evaluation scale was used. Results : In all 3 subjects, the quality of work performance in the three common goal activities improved. The evaluation scores for visual perception, large and small movements, and daily activities were also improved. Conclusion : This study provided evidence that group CO-OP can improve the pre-academic skills and occupational performance of children with CP.

Mediating Effect of Male Gender Role Conflict on the Relationship between Conformity to Masculine Norm and Psychological Distress (남성 규범 순응이 심리적 디스트레스에 미치는 영향: 남성 성역할 갈등을 매개로)

  • Baek, Joo-Hee;Yang, EunJoo
    • The Journal of the Korea Contents Association
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    • v.22 no.6
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    • pp.453-466
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    • 2022
  • This study attempted to examine the role of gender roles in psychological distress of Korean adult men. Specifically, it was attempted to verify whether compliance with multidimensional male gender roles predicts psychological distress through gender role conflict. To this end, this study was conducted on 358 male participants aged 19 to 39 using the Korean Conformity to Masculine Norm Inventory, Korean Male Gender Role Conflict Scale, and General Health Questionnaire. As a result of the study, it was found that the influence on psychological distress through male gender role conflict was different depending on the sub-factors of the male gender norm. The sub-factors of masculine norms, 'power and control', 'job - independence', and 'emotion suppression', were statically predicted psychological distress through the medium of 'fear for femininity', which is a sub-factor of gender role conflict. Meanwhile, among the male norms, 'male leadership' and 'family support' had negative direct effects on psychological distress, and the indirect effects through gender role conflict were not significant. The results of this study suggest that the sub-factors of male norms have different functions for psychological distress, and in particular, the dysfunctional role of male norms can be caused by negative emotions about femininity during gender role conflict.

A Case Study of Therapeutic Song Making to Enhance the Self-identity of Adolescents in Residential Treatment Facility (시설보호청소년의 자아정체감 증진을 위한 치료적 노래만들기 사례)

  • Hwang, Hyejin;Song, Inryoeng
    • Journal of Music and Human Behavior
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    • v.19 no.1
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    • pp.43-67
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    • 2022
  • This is a case study of therapeutic song making activities aimed at improving the self-identity of adolescents in residential treatment facility. The participants were three male teenagers (16 to 18 years of age). The song making intervention was conducted individually with the participants once a week over 13 weeks, and each session lasted 60 minutes. The participants took the lead in making songs by discussing on the self-image and his/her role in the relationship and using musical elements to reflect his/her perception. For analysis, an evaluation method was used to analyze the pre- and post-test results for each sub-domain of the self-identity scale, and changes in the verbal and musical responses during each session. Two of the participants demonstrated higher post-test results compared to their pre-test performance, and their highest post-test scores were for the subdomains of intimacy and initiative respectively. In terms of verbal and musical responses per session, all three participants improved their subjectivity through the self-exploration process, which contributed to the establishment of a more positive self-image. This study suggests that facility youth engaging in making creative songs can positively change their perception of their present and future selves and have a positive effect on their sense of identity.

A Study on the Listener's Emotional Perception of Music According to Harmonic Progression Level (음악의 화음 전개 수준에 따른 감상자의 정서 지각 연구)

  • Ryu, Hae In;Choi, Jin Hee;Chong, Hyun Ju
    • Journal of Music and Human Behavior
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    • v.19 no.1
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    • pp.93-112
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    • 2022
  • The purpose of this study was to compare participants' perceived emotion following harmonic changes in music. In this study, 144 participants, aged 19 to 29 years, listened to music online that included low to high harmonic progression in tonal music (major-minor). After listening to each piece of music, participants were asked to rate 4 items using a 7-point Likert scale: emotional potency, arousal, degree to which the harmony impacted the listener's emotions, and listener's preference for the music. There were significant differences between each of the four items upon the level of harmonic progression. When the participants were divided into two groups (i.e., those with a background in music and those with no background in music), there was a significant difference between the groups in terms of emotional potency, but there was no significant interaction effect. This study confirmed that various emotional responses in listeners can be induced by controlling the exogenous variables in musical excerpts. Based on this, it is expected that the harmonic progression level can be provided to the client to be used as an effective therapeutic tool in music therapy intervention.

Factors Affecting on Major Satisfaction of the Male Students in Department of Dental Hygiene (치위생(학)과 남학생 전공만족도에 영향을 미치는 요인)

  • Kim, Kyung-Mi;Kim, Young-Ki
    • Journal of Korea Entertainment Industry Association
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    • v.14 no.3
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    • pp.421-429
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    • 2020
  • The purpose of this study aimed to identify the relationship between department adaptation, career satisfaction and major satisfaction of the male students in department of dental hygiene and to provide basic data to improve their major satisfaction. The subjects were 102 male students attended dental hygiene departments at four universities in Seoul, Gangwon-do and Gyeongsang-do. The survey was completed a self administered questionnaire survey available on a website from September to October 2019. The collected data were analyzed frequency, mean and standard deviation, correlation and logistic regression using the SPSS 22.0 program. The questionnaire consisted of a total of 36 questions, with each item scored on a 5-point Likert scale. The mean score of male students of dental hygiene department major satisfaction was 3.32, department adaptation was 3.48 and career satisfaction was 3.08. The results of the correlation analysis shows that major satisfaction has a statistically significant positive correlation between career satisfaction and departmental adaptation(p<0.01), career satisfaction was a statistically significant positive correlation to the departmental adaptation(p<0.01). As a result of regression analysis with Independent variables such as departmental adaptation(β=0.410) and career satisfaction(β=0.457) were analyzed to have a significant positive effect on the major satisfaction(p<0.001). Accordingly, the department adaptation and job career satisfaction are critical factors for major satisfaction.

Clinical Study of Chuna Combination Therapy for Patients with Persistent Pain and Dysfunction after Total Knee Arthroplasty (슬관절 전치환술 후 지속 통증 및 기능 장애가 있는 환자에 대한 추나병행치료 임상연구)

  • Lee, Woong-Jin;Lee, Jin-Hyun;Park, Tae-Yong;Park, Jung-Sik;Song, Yun-Kyung
    • Journal of Korean Medicine Rehabilitation
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    • v.32 no.2
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    • pp.123-138
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    • 2022
  • Objectives This study was conducted to evaluate the clinical efficacy and safety of the chuna combination treatment for patients who complain of functional impairment and pain even 3 months after total knee arthroplasty. Methods 24 patients who had 3 months of surgery and who had knee joint pain with a score of 4 or higher on the numerical rating scale (NRS) for more than a week were selected as subjects. The test group received usual care and Chuna treatment and the control group received the administration of drugs as usual care. And then the clinical efficacy and safety were compared and evaluated. Follow-up was performed 1 month after the end of treatment. Results As a result of the analysis, it was confirmed that the primary parameter Korean Western Ontario and McMaster Universities (K-WOMAC) showed statistical significance in the amount of change in visit 2-visit 10 (V2-V10) in the pain domain and in the amount of change in visit 2-follow 1 (V2-FU1) in the functional domain and total score domain. The secondary parameter (NRS, risk of fall, and range of motion) showed a tendency to decrease in the degree of discomfort, but statistical significance could not be confirmed. Conclusions Because this study did not have enough study subjects, it is difficult to use the results as confirmatory evidence. However, it was confirmed that the 4-week Chuna treatment had a significant effect and safety in patients who underwent total knee arthroplasty. Therefore, this study is meaningful as a prior research data to prepare confirmatory evidence in the future.