• Title/Summary/Keyword: Objective Rating

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Load rating of box girder bridges based on rapid testing using moving loads

  • Hong Zhou;Dong-Hui Yang;Ting-Hua Yi;Hong-Nan Li
    • Smart Structures and Systems
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    • v.32 no.6
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    • pp.371-382
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    • 2023
  • Box girder bridges are now widely used in bridge construction, and it is necessary to perform load rating regularly to evaluate the load capacity of box girder bridges. Load testing is a common measure for load rating. However, the bridge must be loaded by many trucks under different loading conditions, which is time-consuming and laborious. To solve this problem, this paper proposes a load rating method for box girder bridges based on rapid moving loads testing. The method includes three steps. First, the quasi-influence factors of the bridge are obtained by crossing the bridge with rapidly moving loads, and the structural modal parameters are simultaneously obtained from the dynamic data to supplement. Second, an objective function is constructed, consisting of the quasi-influence factors at several measurement points and structural modal parameters. The finite element model for load rating is then updated based on the Rosenbrock method. Third, on this basis, a load rating method is proposed using the updated model. The load rating method proposed in this paper can considerably reduce the time duration of traditional static load testing and effectively utilize the dynamic and static properties of box girder bridges to obtain an accurate finite element model. The load capacity obtained based on the updated model can avoid the inconsistency of the evaluation results for the different structural members using the adjustment factors specified in codes.

Developing Corporate Credit Rating Models Using Business Failure Probability Map and Analytic Hierarchy Process (부도확률맵과 AHP를 이용한 기업 신용등급 산출모형의 개발)

  • Hong, Tae-Ho;Shin, Taek-Soo
    • The Journal of Information Systems
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    • v.16 no.3
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    • pp.1-20
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    • 2007
  • Most researches on the corporate credit rating are generally classified into the area of bankruptcy prediction and bond rating. The studies on bankruptcy prediction have focused on improving the performance in binary classification problem, since the criterion variable is categorical, bankrupt or non-bankrupt. The other studies on bond rating have predicted the credit ratings, which was already evaluated by bond rating experts. The financial institute, however, should perform effective loan evaluation and risk management by employing the corporate credit rating model, which is able to determine the credit of corporations. Therefore, this study presents a corporate credit rating method using business failure probability map(BFPM) and AHP(Analytic Hierarchy Process). The BFPM enables us to rate the credit of corporations according to business failure probability and data distribution or frequency on each credit rating level. Also, we developed AHP model for credit rating using non-financial information. For the purpose of completed credit rating model, we integrated the BFPM and the AHP model using both financial and non-financial information. Finally, the credit ratings of each firm are assigned by our proposed method. This method will be helpful for the loan evaluators of financial institutes to decide more objective and effective credit ratings.

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The Status of Paid and Free Star Chart Game Applications: Focus on Google Play in Korea

  • Nam, Sang-Zo
    • International Journal of Contents
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    • v.14 no.3
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    • pp.46-52
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    • 2018
  • The objective of this study was to determine the status of star chart game applications in the Google play store in Korea. The share of game genres in paid and free star charts of game applications was searched. Also, the average reviewer's rating, average number of reviews, and average age rating based on the genre of paid and free star charts of game applications, and the average price of paid applications based on genre were analyzed. Hypothesis tests for the differences in average reviewer's rating, average number of reviews, average age rating according to the genre of game applications were performed. Also, hypothesis tests for the differences in average reviewer's rating, average number of reviews, average age rating between the paid and free game applications along with the hypothesis test for the differences in price according to the genre of paid game applications were performed. Lastly, hypothesis tests for the correlation between the start chart ranking and number of reviews in association with the correlation between the start chart ranking and reviewer's rating were performed. Statistically significant differences in average reviewer's rating, average number of reviews, average age rating according to the genre of game applications, and between the paid and free game applications were verified. However, the correlation between the start chart ranking and number of reviews in association with the correlation between the start chart ranking and reviewer's rating were not statistically significant.

A Study of Simple Rock Mass Rating for Tunnel Using Multivariate Analysis (다변량분석을 이용한 터널에서의 간편 RMR에 관한 연구)

  • 위용곤;노상림;윤지선
    • Proceedings of the Korean Geotechical Society Conference
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    • 2000.11a
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    • pp.493-500
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    • 2000
  • Rock Mass Rating has been widely applied to the underground tunnel excavation and many other practical problems in rock engineering. However, Rock Mass Rating is hard to make out because it is difficult to estimate each valuation items through all kind of field situations and items of RMR have interdependence. So the experts of tunnel assessment have problems with rating rock mass. In this study, using multivariate analysis based on domestic data(1011EA) of water conveyance tunnel, we presented rock mass rating system which is objective and easy to use. The constituents of RMR are decided to RQD, condition of discontinuities, groundwater conditions, orientation of discontinuities, intact rock strength, spacing of discontinuities in important order. In each step, we proposed the best multiple regression model for RMR system. And using data which have been collected at other site, we examined that presented multiple regression model was useful.

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Comparison of Stuttering Self-Rating Scales in Adults with Stuttering (유창성장애 성인의 주관적 말더듬 평가도구들의 비교)

  • Kim, Jae-Ock;Shin, Moon-Ja
    • Proceedings of the KSPS conference
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    • 2007.05a
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    • pp.257-260
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    • 2007
  • This study was designed to compare the self-rating scales (SSS, S-24, P-FA, and PSI) translated into Korean in adults with stuttering. Eighteen adults with stuttering were participated. Each scale was divided into two sub-categories, avoidance and locus of control. The correlations among the scales and among the sub-categories were evaluated. Objective stuttering severity and self-rated stuttering severity were compared. Results indicated that those scales were significantly correlated. Total score in each scale and each sub-category were also significantly correlated. There were no significant differences in total score nor subjective stuttering severity with objective stuttering severity. The self-rating scales in adults with stuttering currently used in clinics and research areas in Korea are suitable tools that adults with stuttering can evaluate the characteristics of and attitudes for stuttering subjectively.

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Comparison of Patient's Subjective Rating Scales for Voice Evaluation in Professional Voice Users with Vocal Fold Lesions (전문직 음성사용자의 주관적 음성평가도구간의 비교)

  • Kim, Jae-Ock;Choi, Sung-Hee;Lim, Sung-Eun;Choi, Jae-Nam;Choi, Hong-Shik
    • Proceedings of the KSPS conference
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    • 2007.05a
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    • pp.292-294
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    • 2007
  • This study was designed to compare the translated patient's subjective rating scales for voice evaluation (Voice Handicap Index; VHI, Voice-Related Quality of Life; V-RQOL, Voice Rating Score; VRS) into Korean, taken from 24 professional voice users diagnosed with organic voice disorders. First, the correlation amongh those scales were observed. Second, the correlation between the patient's subjective rating scales and acoustic measures (Jitter%, Shimmer%, NHR) were examined. Third, those scales were compared by clinician's objective scale (G in GRBAS scale). Results indicated that significant correlations among the patients' subjective rating scales and significant correlations of clinician's rating scale with jitter% and Shimmer%, but not with NHR were observed. In addition, there were significant correlations of G with VHI and VHI-P (one of subscale of VHI). However, none of acoustic measures were correlated with the patient's subjective rating scales.

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Assesment and Diagnosis of Attention Deficit Hyperactivity Disorder(ADHD) - Focusing on Behavior Rating Scales - (주의력결핍과잉행동장애의 진단 및 평가 - 행동평정척도들을 중심으로 -)

  • Chang, Gyu-Tae;Han, Yun-Jeong
    • The Journal of Pediatrics of Korean Medicine
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    • v.20 no.2
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    • pp.147-175
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    • 2006
  • Objective : This study is to investigate the method for assesment and diagnosis of ADHD, especially focusing on behavior rating scales. Methods : We searched the recent date of the publication and paper in ADHD. Results : For Assesment and Diagnosis of ADHD, various method such as interview with parents, child and teacher, behavior observation, behavior rating scales and neuropsychological test are used. The structured interview consists of the restrictive questions and response, and then have diagnostic algorithm, consequently can be used by untrained clinicians. Of the structured interview, standardization of K-SADS in Korean version is finished. Behavior rating scales, the form of parent, teacher and self-report questionnaires, are used as diagnosis and treatment evaluation of ADHD. Behavior rating scales consist of both ADHD-specific scales and broad-band scales designed to screen for various symptoms (including ADHD symptoms). ADHD-specific scales are useful in differential diagnosis, discrimination of subtype, treatment evaluation, However, broad-band scales are useful in preliminary examination. The neuropsychological tests can evaluate attention deficit and effect of attention deficit on cognitive function and academic performance. The neuropsychological tests also used in diagnosis and treatment evaluation of ADHD. Conclusion : For Assesment and Diagnosis of ADHD, various method are used, especially behavior rating scales are both useful and simple tool for diagnosis and treatment evaluation.

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Assessment of the Global Rating of Knee Function in Patients Following Anterior Cruciate Ligament Reconstruction

  • Ross, Michael D;Prall, Joshua
    • Physical Therapy Rehabilitation Science
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    • v.11 no.1
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    • pp.1-7
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    • 2022
  • Objective: The purpose of this study was to assess the validity of the global rating of knee function as a measure of participation restrictions experienced during activities of daily living and sports by patients with a history of anterior cruciate ligament reconstruction (ACLR). Design: Cross-sectional study. Methods: Forty-three subjects (33 males, 10 females, age=20.3 ± 1.3 years), at a mean of 31.2 ± 14.4 months following ACLR, participated in this study. During testing, subjects were first asked to provide a global rating of function by assessing their level of knee function on a 0 to 100 scale, with 0 points representing complete loss of function due to their knee injury and 100 points representing their level of function prior to their knee injury. After providing a global rating of function, subjects completed the Knee Outcome Survey (KOS) Activities of Daily Living Scale (ADLS) and Sports Activity Scale (SAS), which served as the measure of participation restrictions in this study. Results: Pearson product correlations revealed moderate relationships between the global rating of function and the ADLS (r=0.66, p<0.0001) and SAS (r=0.69, p<0.0001). Conclusions: The global rating of knee function provides a valid measure of participation restrictions experienced during activities of daily living and sports by patients with a history of ACLR.

A case study on a patient of developmental disabilities with ADHD (시호가룡골모려탕(柴胡加龍骨牡蠣湯)을 이용한 발달장애 환자의 ADHD증상 관리 1례)

  • Jung, Myung-Ju;Park, Jong-Chan;Lee, Eun-Kyung;Yang, Duk-Mo;Yu, Dong-In
    • 대한상한금궤의학회지
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    • v.5 no.1
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    • pp.61-73
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    • 2013
  • Objective : The purpose of this report is to submit a case study on a patient of developmental disabilities with ADHD by taking "Sihogayonggolmoryeo-tang". Methods : We gave herbal medicine to a patient and observe the progress as the way of Cornners Abbreviated Rating Scale(CARS), ADHD Rating Scale (K-ARS), The ADD-H Comprehensive Teacher's Rating Scale(ACTeRS), Child Attention Problem(CAP), IOWA Conners Rating Scale, Conners Teacher Rating Scale(CTRS), Conners Parents Rating Scale (CPRS), Home Situation Questionnaire(HSQ), School Situation Questionnaire(SSQ). Results : The total score of CARS, ACTeRS and other scales were decreased by taking herbal medicine, and especially hyperactive scores were significantly decreased. Conclusions : Patient's symptom was significantly improved by using "diagnostic system based on Shanghanlun six meridian patterns and provisions" and analyzing patient's psychological and physical conditions.

Sediment Estimation of Large Reservoir Using Daily Flowrate Analysis (일유량 분석을 이용한 대규모 저수지의 퇴사량 추정)

  • 정재성
    • Journal of Environmental Science International
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    • v.6 no.5
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    • pp.417-423
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    • 1997
  • The objective of this study Is to supply basic data for large reservoir sedimentation research In future and make suggestions to maintain and opera능 the reservoir more of efficiently. At first, previous studios about the estimation of sediment yield rate were reviewed in Korea. And the discharge rating curves of upstream stage gauging stations and the correlation between dam Inflow and stage discharge were analyzed. With the analysis results, the spec유c sediment rate of Soyanggang dam was estimated as 608 m3/km2/yr. It was similar to that of Soyanggang dam feasibility study and 1994's field surveys of the reservoir than that of 1983's field surveys. Because the sediment rating curves were derived under the low discharge conditions, It needs to be checked under the flood conditions. However, the suggested methods such as flowrate analysis and sediment estimation will be useful to the sediment studios In future. Key words . reservoir sediment, sediment yield rate, rating curve, flowrate analysis.

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