Existing Concrete Girder Bridges' Bending Stiffness Assessment Based on Crack Characteristics Parameters

2012 ◽  
Vol 226-228 ◽  
pp. 1581-1585
Author(s):  
Dong Lian Tan ◽  
Wen Hua Yan
Keyword(s):  
Regression Analysis ◽  
Reinforced Concrete ◽  
Model Test ◽  
Quantitative Assessment ◽  
Bending Stiffness ◽  
Qualitative Assessment ◽  
Test Results ◽  
Girder Bridges ◽  
The Relationship ◽  
Concrete Girder

A lot of existing reinforced concrete girder bridges appeared cracks in the service phase. Because of the beam's cracks existing, the sectional bending stiffness of the beam decreased. It would reduce the structure's bearing capacity, so the bridges' structure performance urgently needs to be assessed by effective methods, so as to study further measures. In this paper, based on the indoor model test results of four pieces of model beams, regression analysis of the crack characteristics parameters and test's load-displacement curves has been carried out. The relationship between crack characteristics parameters and girder bridge's bending stiffness has been established. The qualitative assessment of structure crack's appearance inspection is transmitted to quantitative assessment, so it will make the assessment more objective and scientific.

scholarly journals THE SAFETY AND SECURITY OF THE TOURISM ENTREPRENEURSHIP POTENTIAL REALIZATION IN MODERN CONDITIONS

2020 ◽  
Vol 6 (5) ◽  
pp. 203-208
Author(s):  
Iryna Mazur ◽  
Ramil Aliyev ◽  
Yuliia Zhelizko
Keyword(s):  
Regression Analysis ◽  
Safety Information ◽  
Security Threats ◽  
Test Results ◽  
Correlation And Regression Analysis ◽  
Tourist Flows ◽  
Political Security ◽  
High Level ◽  
The Impact ◽  
The Relationship

The purpose of the paper is to determine the relationship between different types of tourism safety and security, and components of the tourism entrepreneurship potential, to conduct a quantitative analysis of these indicators in the regions of Ukraine and to identify areas for ensuring the safety and security of the tourism entrepreneurship potential realization. Methodology. Analysis of tourism safety and security in Ukraine is based on the assessment of security potential indicator and the security threats indicator for 25 regions. These indicators take into account the following types of safety and security: security of tourist services, safety of tourist facilities and equipment, social security, political security, financial security, medical safety, information security, and ecological security. The impact of tourism safety and security on the tourism entrepreneurship potential realization is determined on the basis of correlation and regression analysis, where the indicator of the tourism entrepreneurship potential realization is the volume of domestic and inbound tourist flows in the region. The empirical basis of the study is the data of the State Statistics Service of Ukraine for 2019. The reliability of the regression model was tested on the basis of the approximation coefficient and Fisher's F-test. Results of the correlation analysis indicate a significant relationship between ensuring the safety and security of tourism in the region and the volume of domestic and inbound tourist flows. As a result of regression analysis, a model of a high level of reliability was obtained, which indicates how the volume of domestic and inbound tourist flows to the region increases with increasing the level of tourist safety and security by unit. Practical implications. Since the process of safety and security ensuring for the tourism entrepreneurship potential realization cannot be implemented exclusively at the regional level, it is justified the feasibility of a targeted public policy in eight areas. Value/originality. The identified relationship between the types of safety and security of tourism and components of the tourism entrepreneurship potential, as well as establishing the level of impact of safety and security of tourism on the tourism entrepreneurship potential realization in the region provide for a better understanding of ways for efficient governance in this area.

Role of Antiplatelet/Anticoagulant Medications and Blood-Clotting Tests in Prediction of Traumatic Foot Compartment Syndrome

2018 ◽  
Vol 39 (6) ◽  
pp. 725-730
Author(s):  
Young Hwan Park ◽  
Won Seok Choi ◽  
Gi Won Choi ◽  
Hak Jun Kim
Keyword(s):  
Regression Analysis ◽  
Compartment Syndrome ◽  
Blood Clotting ◽  
Test Results ◽  
Medication History ◽  
Level Of Evidence ◽  
Antiplatelet Medication ◽  
Foot Injury ◽  
The Relationship

Background: Although intracompartmental bleeding is one cause of traumatic compartment syndrome, no previous studies have defined the role of hemostatic stability in the development of traumatic compartment syndrome. Therefore, to investigate this issue, we identified the relationship between antiplatelet/anticoagulant medications and the development of traumatic foot compartment syndrome. In addition, as a possible predictor of compartment syndrome, we evaluated the utility of blood-clotting tests in the prediction of traumatic foot compartment syndrome. Methods: Retrospective review of patients diagnosed with isolated foot injury in our institution between 2008 and 2016 was used to identify patients who had traumatic foot compartment syndrome. Potential predictors, including medication history for antiplatelet/anticoagulant agents and blood-clotting test results, were analyzed using logistic regression analysis. The present study included 789 feet, and 29 (3.7%) had traumatic foot compartment syndrome. Results: The antiplatelet medication and the blood-clotting test results were not significantly associated with the development of traumatic foot compartment syndrome. Among other variables, damage caused by heavy objects as the injury mechanism was the only significant predictor in the development of traumatic foot compartment syndrome ( P < .05). Conclusion: Our results showed that antiplatelet medication and blood-clotting tests did not predict the development of traumatic foot compartment syndrome. Level of Evidence: Level III, retrospective comparative series.

scholarly journals Bulk Density Adjustment of Resin-Based Equivalent Material for Geomechanical Model Test

2015 ◽  
Vol 2015 ◽  
pp. 1-8 ◽  
Author(s):  
Pengxian Fan ◽  
Haozhe Xing ◽  
Linjian Ma ◽  
Kaifeng Jiang ◽  
Mingyang Wang ◽  
...  
Keyword(s):  
Bulk Density ◽  
Model Test ◽  
Coarse Aggregate ◽  
Uniaxial Compression Test ◽  
Equivalent Material ◽  
Test Results ◽  
Geomechanical Model ◽  
Geomechanical Model Test ◽  
Substitution Ratio ◽  
The Relationship

An equivalent material is of significance to the simulation of prototype rock in geomechanical model test. Researchers attempt to ensure that the bulk density of equivalent material is equal to that of prototype rock. In this work, barite sand was used to increase the bulk density of a resin-based equivalent material. The variation law of the bulk density was revealed in the simulation of a prototype rock of a different bulk density. Over 300 specimens were made for uniaxial compression test. Test results indicated that the substitution of quartz sand by barite sand had no apparent influence on the uniaxial compressive strength and elastic modulus of the specimens but can increase the bulk density, according to the proportional coarse aggregate content. An ideal linearity was found in the relationship between the barite sand substitution ratio and the bulk density. The relationship between the bulk density and the usage of coarse aggregate and barite sand was also presented. The test results provided an insight into the bulk density adjustment of resin-based equivalent materials.

scholarly journals Effect of Rational Advertisement Appeal on Online Branding in Pakistan

2018 ◽  
Vol 3 (1) ◽  
pp. 36
Author(s):  
Muhammad Shoukat Malik ◽  
Rabia Tanveer
Keyword(s):  
Factor Analysis ◽  
Regression Analysis ◽  
Sampling Technique ◽  
Positive Influence ◽  
Test Results ◽  
Online Questionnaire ◽  
Online Branding ◽  
Convenience Sampling ◽  
Customer Attitude ◽  
The Relationship

The purpose of this study is to identify the effect of rational advertisement appeal on online branding within the context of Pakistan. Customer attitude is the moderator. The relationship between attitude of customers and online branding is also taken into consideration. Personal items and gadgets are two types of products considered in order to determine differences in purchases while being online. A quantitative survey based research design is used in this study. Nonprobability sampling technique of convenience sampling is used. Data were collected through an online questionnaire. 244 usable responses were obtained. Data was analyzed using SPSS 22. Factor analysis was performed followed by regression analysis and T-test. Results of data analysis revealed that a rational advertisement appeal is a significant predictor of online branding. Customer attitude did not moderate the relationship between rational advertisement appeal and online branding. However, customer attitude had a positive influence on online branding. There were some differences between the product types when consumers purchased online for personal items and gadgets. This study made an important contribution in the literature by investigation the effect of rational advertisement appeal on online branding.

scholarly journals MODERASI PENGALAMAN PADA PENGARUH FRAUD RISK ASSESSMENT, SKEPTISME, DAN WORKLOAD TERHADAP KEMAMPUAN MENDETEKSI KECURANGAN

2019 ◽  
pp. 183
Author(s):  
Kiswanto - Kiswanto ◽  
Panji Aziz Maulana
Keyword(s):  
Risk Assessment ◽  
Regression Analysis ◽  
Supervisory Board ◽  
Test Results ◽  
Professional Skepticism ◽  
Moderating Variables ◽  
Fraud Risk ◽  
Central Java ◽  
The Relationship ◽  
Positive Effect

The purpose of this study was to analyze the effect of fraud risk assessment, skepticism, and workload on the ability to detect fraud with experience as quasi moderating variables. The population and sample of this study are auditors who work at the Central Java Development and Supervisory Board (BPKP). The sample in this research is 41 auditor. Data collection using questionnaires. Data analysis method of this research is multiple regression analysis and moderated regression analysis (MRA). The results of this study indicate that the fraud risk assessment has no significant effect on the ability to detect fraud. Professional skepticism, workload, and experience have a significant positive effect on the ability to detect fraud. The test results also show that experience can moderate the influence of the relationship between fraud risk assessment and the ability to detect fraud. Based on the results of the study it can be concluded that experience is a moderating quasi variable where experience has a direct and indirect influence (moderation) on the ability to detect fraud. The influence of fraud risk assessment on the ability to detect fraud is determined by experience.

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