• Title/Summary/Keyword: impact factors

Search Result 7,122, Processing Time 0.031 seconds

Risk-based Safety Impact Assessment for Construction Projects (위험도 접근방법에 의한 건설사업 안전영향평가방안에 관한 연구)

  • Choi Hyun-Ho;Jung Pyung-Ki;Seo Jong-Won;Choi Ook
    • Proceedings of the Korean Institute Of Construction Engineering and Management
    • /
    • 2004.11a
    • /
    • pp.504-509
    • /
    • 2004
  • Safety assessment of construction projects may be affected by various factors such as types and scale of projects, construction methods, procedure, climactic, and site conditions etc. Presently, in planning and design phases, designers are still often uncertain of their responsibilities, l3i]I information and training of safety. Therefore, designers are still failing to exploit the potential that have to eliminate and reduce risks on site. In this study, the concepts of safety impact assessment is introduced in order to derive the performing design for safety in design phase. For this purpose, a framework for safety impact assessment model using risk-based approach for construction projects is suggested. The suggested model includes of information survey and scenarios, classification of safety impact factors occurred by design and construction, and quantitative estimation of magnitude and frequency. Moreover, the checklist which is enable to identify relationship between safety impact factors and design factors is developed and the methodology of safety impact assessment model using risk-based approach is also proposed.

  • PDF

Study on the Factors Affecting the Richness Index of Bird Species in Environmental Impact Assessment (환경영향평가에서 조류 종풍부도 변화에 미치는 요인 고찰 연구)

  • Hyunbin Moon;Eunsub Kim;Dongkun Lee
    • Journal of Environmental Impact Assessment
    • /
    • v.33 no.2
    • /
    • pp.64-73
    • /
    • 2024
  • As the seriousness of habitat destruction caused by development projects emerges, the importance of environmental impact assessment (EIA) is increasing to preserve biodiversity. In previous studies, research is being conducted to quantitatively evaluate the biodiversity impact of development factors and surrounding environmental factors on the landscape scale, but research on the factors affecting the reduction of biodiversity based on development projects is insufficient. This study examined whether independent variables (size of development project, type of the development, DEM, ecosystem and nature map, distance from the green land, distance from the protected area), which have been proven to effect biodiversity through the previous researches, have a significant effect on the change of richness index (RI) through multi-class logistic regression analysis, T-test, and analysis of the development type. As a result, only the size of development project and the first richness index in EIA showed p-value less than 0.05. And it was confirmed that the reduction in biodiversity was significantly changed in the following construction types: installation of sports facilities, energy development, and development of industrial location and industrial complex. Since the results of this study confirmed that the impact of the variables may be inconsistent depending on the analysis scale, additional study of necessary indicators at the development project is needed to analyze biodiversity changes in EIA accurately.

A Consideration on the Establishment of Standard level for Floor Impact Sound Insulation (바닥충격음 차단성능 기준설정 고찰)

  • 송민정;기노갑;장길수;김흥식;김선우
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
    • /
    • 2001.05a
    • /
    • pp.226-229
    • /
    • 2001
  • Recently the impact sound insulation performance is regarded as one of the most import factors in determining the quality of housing environment. In order to reduce the impact sound level transmitted through the floors and structures, establishing the standard level of impact sound insulation performance is needed. In this consideration, The effecting facts for the standard insulation level is reviewed.

  • PDF

LCA-based Environmental Impact Analysis for Prestressed Concrete Girders (프리스트레스 콘크리트 거더의 LCA기반 환경영향 분석)

  • Choi, Gyeong-Chan;Kim, Do-Hoon;Park, Jin-Young;Kim, Byung-Soo
    • KSCE Journal of Civil and Environmental Engineering Research
    • /
    • v.40 no.1
    • /
    • pp.69-76
    • /
    • 2020
  • Bridges which are components of road network consume large amounts of resources such as concrete and steel materials, which have large environmental impacts during construction. This causes a great environmental burden. In order to reduce the environmental impact caused by the construction of the bridge, the environmental impact should be reviewed based on reasonable data in the early design stage. The purpose of this study is to provide basic data for LCA-based environmental impact assessment in the process of selecting bridge type in the early design stage. For this purpose, design data for four types of PSC bridges (general PSC girder, IPC girder, e-Beam, DR girder) were collected and LCA was performed to analyze the basic unit value and impact factors of environmental load. The results of the analysis showed that the environmental impact of IPC girder was the smallest, and the environmental impact of e-Beam was 133.7% higher than that of IPC girder. In addition, concrete, reinforcement, PC strand, square timber, sheath pipe, and steel plate were derived as the main factors that generate 98.5% of the overall environmental impact of PSC girder.

An Analysis on Kinematically Contributing Factors at Impact of Forehand Drive Motion in Squash (스쿼시 포핸드 드라이브 동작의 임팩트시 운동학적 주요요인 분석)

  • Lee, Kyung-Il;Lee, Hee-Kyung
    • Korean Journal of Applied Biomechanics
    • /
    • v.17 no.1
    • /
    • pp.29-39
    • /
    • 2007
  • This study were obtained elapsed time phase-by-phases, displacement, user angle, velocity and angular velocity to analyse kinematically contributing factors at impact of forehand drive motion, on targeting three male players. The results of the study were presented as follows; In the forehand drive swing, the elapsed time by phases was a total of .52 seconds: .30 seconds from backswing to impact and .22 seconds from impact to follow-through, Considering the mean change in locations of COM of each(part$\rightarrow$body segment) at impact, racket head, left shoulder, right wrist and left hip, the left-right directions(X-axis) were showm to be each $.61{\pm}.03$, $1.19{\pm}.08$, $.66{\pm}.03$, $.94{\pm}.06$, and $.45{\pm}.03m$. The displacement differences of COM of each body segment were shown to be -.57, -.05, -.33, and .16m. For the vertical direction(Z-axis), the center of mass was lowest at impact and highest at E3. For the displacement of the right wrist on the left hip, the right wrist moved to .82m to the lower direction without change in the locations of the hip from E1 from E2. When the left hip moved .02m from E2 to E3, the right wrist moved .7m in the upper direction. In respect to the velocity of each body segment, the hip and the shoulder joint accelerated and then the wrist followed. Then the right wrists of all the subjects and their racket heads showed maximum speed, and an effective swing was observed. At the angle of each part, the angle of the right wrist was the smallest at the backswing and the largest at the moment of the impact. Then it increased gradually in the follow-through section. In respect of angular velocity for subject A, the hip moved and the largest change occurred. Immediately before the impact, the subject made a swing using his right wrist, his hip, and the shoulder joint, showing the maximum value, which was judged to be effective.

A Study of Impact Factors and Barrier Height of Compact Car Road for Decision of Barrier Type (소형차도로 방호울타리 형식선정을 위한 충돌계수 및 방호울타리 높이선정 연구)

  • Choi, Hyun-Ho;Kim, Ki-Hwan;Lee, Eui-Joon;Yi, Sang-Keun
    • KSCE Journal of Civil and Environmental Engineering Research
    • /
    • v.30 no.6D
    • /
    • pp.605-613
    • /
    • 2010
  • In this study, Impact factors are represented and barrier height of compact car road of safety barrier is suggested through the investigation of applying problems of existed standard of general car road. For this, traffic accidents analysis is performed and based on the analysis, impact vehicle weight, impact Angle, crash velocity, and barrier height are investigated. For the decision of impact angle, analysis is carried out by comparison of RISER and 2-lines expressway accidents data. Through this, higher-impact angle is suggested. Vehicle weight data of sub-compact car, small vehicle, medium and large vehicle, SUV, small truck is surveyed and analyzed. Based on the accident accumulation rate, regression analysis of vehicle weight impact and impact velocity is performed. Also, based on the cumulative rate of vehicle weight on expressways near Seoul, barrier height of compact car road is calculated. It is noted that the results of this study will be contributed to the decision of barrier type.

A Study on Advertising Expressive Factors of Fashion Products on Brand Equity -Focused on Mediate Role of Brand Personality- (패션제품 광고표현요소와 브랜드 자산에 관한 연구 -브랜드 개성의 매개효과를 중심으로-)

  • Lee, Seung-Hee;Chang, Yoon-Kyung;Park, Soo-Kyeong
    • Journal of the Korean Society of Clothing and Textiles
    • /
    • v.32 no.11
    • /
    • pp.1659-1668
    • /
    • 2008
  • The purpose of this study was to examine the impact of advertising expressive factors on brand equity and to investigate the role of brand personality as a factor mediate variable. The subject used for this study were 352 female university students. The data was analyzed by descriptive analysis, correlation analysis and confirmatory factor analysis using SPSS program and Amos program. As the result, model fit index showed $X^2$=57.824, df=19, GFI=0.969, CFI=0.959, NFI=0.942, and RMSEA=0.076, providing good model fit. Out of the advertising expressive factors, sophistication and model preference factors gave impact on brand personality. Also, among advertising expressive factors, novelty, sophistication, model preference, information factors affected brand equity. Finally, brand personality influenced on brand equity. Brand equity was affected directly by advertising expressive factors. It was also affected by brand personality which is a mediate factor between advertising expressive factors and brand equity. The results of this study would provide advertising strategy for fashion brand.

Impact of Psychosocial Factors on Occurrence of Medication Errors among Tehran Public Hospitals Nurses by Evaluating the Balance between Effort and Reward

  • Zaree, Tahere Yeke;Nazari, Jalil;Jafarabadi, Mohhamad Asghary;Alinia, Tahereh
    • Safety and Health at Work
    • /
    • v.9 no.4
    • /
    • pp.447-453
    • /
    • 2018
  • Background: Patient safety and accurate implementation of medication orders are among the essential requirements of par nursing profession. In this regard, it is necessary to determine and prevent factors influencing medications errors. Although many studies have investigated this issue, the effects of psychosocial factors have not been examined thoroughly. Methods: The present study aimed at investigating the impact of psychosocial factors on nurses' medication errors by evaluating the balance between effort and reward. This cross-sectional descriptive study was conducted in public hospitals of Tehran in 2015. The population of this work consisted of 379 nurses. A multisection questionnaire was used for data collection. Results: In this research, 29% of participating nurses reported medication errors in 2015. Most frequent errors were related to wrong dosage, drug, and patient. There were significant relationships between medications errors and the stress of imbalance between effort and reward (p < 0.02) and job commitment and stress (p < 0.027). Conclusion: It seems that several factors play a role in the occurrence of medication errors, and psychosocial factors play a crucial and major role in this regard. Therefore, it is necessary to investigate these factors in more detail and take them into account in the hospital management.

A STUDY ON IMPROVEMENT PLANS USING USER DISSATISFACTION FACTORS IN ASTRONOMICAL SCIENCE MUSEUM - Focusing on the case of Geochang Wolseong Space Creative Science Museum - (천문과학관의 이용자 불만요인을 활용한 개선방안 연구 - 거창월성우주창의과학관 사례를 중심으로 - )

  • HAN-HO JEONG;YONGGI KIM
    • Publications of The Korean Astronomical Society
    • /
    • v.38 no.3
    • /
    • pp.99-110
    • /
    • 2023
  • In this study, complaints from visitors in the science museum satisfaction survey were categorized into four primary factors and ten sub-factors. This categorization aimed to provide recommendations for enhancing the Geochang Wolseong Space Creative Science Museum as an illustrative case study. Futhermore, the study examimed the relative importance of each factor by surveying 90 science museum visitors. The following results are obtained. Firstly, it was evident that the Geochang Wolseong Space Creative Science Museum requires urgent improvement. Certainly, in the primary factors, issues related to the utilization environment emerged as the most significant sources of dissatisfaction, while in the sub-factors, the adequacy of fees was identified as the most prominent concern. Secondly, through the result of the IPA (Importance-Performance Analysis) of the complaint factors, four primary issues were identified as top priorities for consideration: fare adequacy, lack of convenient facilities, in sufficient publicity, and a lack of distinctiveness compared to similar facilities. Lastly, when analyzing the relationship between complaints and overall satisfaction, factors related to human service, environment, and educational content had negative effects. In contrast, factors associated with science museum operation exhibited a different trend, suggestinga structural impact relationship with the overall impact of complaints.

An Influence of VMD configuration factors of Coffee shops on Brand equity and Repurchase intention (커피전문점의 VMD 구성요인이 브랜드자산과 재구매의도에 미치는 영향)

  • Kim, Sang-Soo;Song, In-Am;Hwang, Hee-Joong
    • Journal of Distribution Science
    • /
    • v.10 no.11
    • /
    • pp.39-53
    • /
    • 2012
  • Purpose - This study identifies relationships amongst repurchase intentions, brand equity, and preference by applying VMD of fashion retail stores. The results would help coffee shop owners and coffee makers in devising an appropriate strategy for successfully managing coffee shops. Research design, data, methodology - The VMD model of a coffee shop includes harmony, trend, and attractiveness, while brand equity encompasses brand awareness, perceived quality, and brand image. In this study, the VMD factors of coffee shops, brand equity, and brand preference, are shown as independent variables, while repurchase intention is shown as the dependent variable. The study aims to ascertain the extent of the influence configuration factors of a coffee shop have on brand equity, brand preference, and repurchase intention. Regression analysis was used to verify the mediating effects of brand preference on brand equity and repurchase intention. The measurement items were already deemed as reliable and valid in the previous study, but some modifications were made for the purposes of this study. Questionnaires were distributed to 550 consumers on a national scale, and 517 consumers amongst these were finally used as a sample for analysis using the SPSS 17.0 statistical program. Results - First, amongst the VMD configuration factors of a coffee shop, trend, and attractiveness have a positive impact on brand equity (brand awareness, perceived quality, and brand image). Second, brand equity has a positive effect on brand preference. Third, brand preference has a positive effect on repurchase intention. Fourth, brand preference plays the role of a mediator in measuring the impact of brand awareness and brand image on customers' repurchase intentions. Conclusions - The theoretical implications can be summarized as follows. First, this study proposes a theoretical basis that can be adapted to the VMD configuration factors of a coffee shop by identifying the relationship between brand equity and coffee shops. This study applies the VMD factors to the coffee shops and presents a new research model by examining the relationships amongst VMD components of coffee shops: brand equity, brand preference, and repurchase intention. Second, it clearly establishes the relationship between brand equity and brand preference by identifying the mediating effects of brand preference, given that brand equity has a positive impact on repurchase intention. The practical implications are as follows. First, development of brand equity and management can be important components for coffee shops in determining that the VMD configuration factors of coffee shops have an impact on brand equity. Second, amongst the VMD configuration factors, attractiveness and trend have a positive influence on choosing coffee shops, therefore store atmosphere should be attractively designed, while the menu and interiors should complement each other and be reviewed periodically to conform to the latest trend. Third, VMD configuration factors that are confirmed are not easily changed. Fourth, large franchises and foreign companies have strengths in scale, locations, and brand. Fifth, the different ways of campaigning should be compared to those of large franchises and foreign companies in order to increase brand equity using VMD configuration factors.

  • PDF