Experiment study of buckling-restrained brace and PFD-BRB system

2011 ◽  
Author(s):  
Jigang Zhang ◽  
Jingjing Zhang
Keyword(s):  
Experiment Study ◽  
Buckling Restrained Brace ◽  
Brb System

The Non-Market Benefits of Expanding Organic Waste-to-Energy Facilities: A Choice Experiment Study

2016 ◽  
Vol 24 (4) ◽  
pp. 103 ◽  
Author(s):  
Hyo-Jin Kim ◽  
Seul-Ye Lim ◽  
Seung-Hoon Yoo
Keyword(s):  
Choice Experiment ◽  
Organic Waste ◽  
Waste To Energy ◽  
Experiment Study ◽  
Market Benefits

Withdrawal: Experiment study of bleed air contaminant transport in aircraft cabin

2018 ◽  
Author(s):  
Xiyuan Chen ◽  
Zhenbin Wang ◽  
Bowen Ma ◽  
Shibin Yang ◽  
Xiaozhe Sun
Keyword(s):  
Contaminant Transport ◽  
Experiment Study ◽  
Aircraft Cabin ◽  
Air Contaminant

Experiment Study Of Light Transmitting Concrete

2016 ◽  
pp. 1
Author(s):  
Abdelmajeed Altlomate ◽  
Mohamed Jadan ◽  
Faesal Alatshan ◽  
Fidelis Mashiri
Keyword(s):  
Experiment Study

Reliability and reliability-based sensitivity analysis of self-centering buckling restrained braces using meta-models

2021 ◽  
pp. 1045389X2110263
Author(s):  
Seyede Vahide Hashemi ◽  
Mahmoud Miri ◽  
Mohsen Rashki ◽  
Sadegh Etedali
Keyword(s):  
Failure Probability ◽  
Limit State ◽  
Computational Cost ◽  
Sensitivity Analyses ◽  
State Function ◽  
Reliability Indices ◽  
Buckling Restrained Brace ◽  
Polynomial Response Surface ◽  
Nonlinear Dynamic Analyses ◽  
High Computational Cost

This paper aims to carry out sensitivity analyses to study how the effect of each design variable on the performance of self-centering buckling restrained brace (SC-BRB) and the corresponding buckling restrained brace (BRB) without shape memory alloy (SMA) rods. Furthermore, the reliability analyses of BRB and SC-BRB are performed in this study. Considering the high computational cost of the simulation methods, three Meta-models including the Kriging, radial basis function (RBF), and polynomial response surface (PRSM) are utilized to construct the surrogate models. For this aim, the nonlinear dynamic analyses are conducted on both BRB and SC-BRB by using OpenSees software. The results showed that the SMA area, SMA length ratio, and BRB core area have the most effect on the failure probability of SC-BRB. It is concluded that Kriging-based Monte Carlo Simulation (MCS) gives the best performance to estimate the limit state function (LSF) of BRB and SC-BRB in the reliability analysis procedures. Considering the effects of changing the maximum cyclic loading on the failure probability computation and comparison of the failure probability for different LSFs, it is also found that the reliability indices of SC-BRB were always higher than the corresponding reliability indices determined for BRB which confirms the performance superiority of SC-BRB than BRB.

scholarly journals PRS3 Discrete Choice Experiment Study Concept: Stated Preferences in Obstructive SLEEP Apnea Patients

2020 ◽  
Vol 23 ◽  
pp. S716
Author(s):  
M. Braun ◽  
S. Dietz-Terjung ◽  
C. Taube ◽  
C. Schoebel
Keyword(s):  
Obstructive Sleep Apnea ◽  
Sleep Apnea ◽  
Discrete Choice Experiment ◽  
Discrete Choice ◽  
Choice Experiment ◽  
Stated Preferences ◽  
Experiment Study ◽  
Obstructive Sleep

Practical Work or Simulations? Voices of Millennial Digital Natives

2021 ◽  
pp. 004723952110189
Author(s):  
Promail K.Y. Leung ◽  
Maurice M.W. Cheng
Keyword(s):  
Virtual World ◽  
Electronic Devices ◽  
Digital Natives ◽  
Practical Work ◽  
Group Interview ◽  
Experiment Study ◽  
Electric Circuits ◽  
Online Simulations ◽  
Validated Instrument ◽  
Quasi Experiment Study

Students nowadays grow up with electronic devices and are adept at navigating the virtual world. Practical activities may be more of a novelty for them than simulations. Using the topic of electric circuits as a context, we examined the ways in which Grade 11 students perceived and learned from practical work and simulations, respectively. In this quasi-experiment study, a group of 19 students used a free online simulations package “Circuit Construction Kit,” while another group of 17 students learnt through practical work. We administered a validated instrument to both groups and found that practical work and simulations supported students’ learning in similar ways. The interventions were then reversed so that all participants experienced both practical work and simulations. Finally, seven students from each group were selected for a group interview. Through the interviews, we identified features of simulations and practical work respectively that students believed contributed to their learning.

scholarly journals Stated Preferences for Plant-Based and Cultured Meat: A Choice Experiment Study of Spanish Consumers

2021 ◽  
Vol 13 (15) ◽  
pp. 8235
Author(s):  
Alfredo J. Escribano ◽  
Maria Belen Peña ◽  
Carlos Díaz-Caro ◽  
Ahmed Elghannam ◽  
Eva Crespo-Cebada ◽  
...  
Keyword(s):  
Choice Experiment ◽  
Meat Products ◽  
Meat Production ◽  
Experiment Study ◽  
Negative Effects ◽  
High Quality ◽  
Cultured Meat ◽  
Production And Consumption ◽  
Alternative Sources ◽  
Negative Impacts

Meat production and consumption have been claimed to have negative impacts on the environment, and even on the consumer’s health. In this sense, alternative sources of protein, mainly meat substitutes and cultured meat, have emerged due to those perceived negative effects. Our paper carries out a choice experiment to analyze the preferences of 444 Spanish consumers and their willingness to pay for plant-based and cultured meats, as compared to conventional meat. Spain was considered of interest for this study due to its significant gastronomic culture, with high-quality meat products that make a great contribution to the economy, meaning that this could be a suitable and also challenging market in which to test alternative sources of protein. The findings show that consumers’ motivations and their interactions with these products are complex. Additionally, a cluster analysis allowed us to identify three types of consumers in terms of preference for these products: price-sensitive millennials, conscious/concerned consumers, and indifferent consumers. Only one group showed some level of acceptance of these alternative products meats.

scholarly journals How Do Patients Want Us to Use the Computer During Medical Encounters?—A Discrete Choice Experiment Study

2021 ◽  
Author(s):  
Cédric Lanier ◽  
Melissa Dominicé Dao ◽  
Dave Baer ◽  
Dagmar M. Haller ◽  
Johanna Sommer ◽  
...  
Keyword(s):  
Discrete Choice Experiment ◽  
Discrete Choice ◽  
Choice Experiment ◽  
Primary Care Physicians ◽  
Skills Training ◽  
Experiment Study ◽  
Visual Contact ◽  
Patient Centered ◽  
Clinical Communication ◽  
French Speaking

Abstract Background Primary care physicians (PCPs) now widely use electronic health records (EHRs) during medical encounters. Experts in clinical communication issued recommendations for a patient-centered use of EHRs. However, they have never been validated by patients themselves. Objective To explore patients’ preferences regarding physicians’ EHR-related behaviors. Design Discrete choice experiment study. Patients French-speaking patients waiting for a medical consultation at two outpatient clinics in Geneva, Switzerland. Main Measures We invited patients to watch videos displaying 2 or 3 variations of four specific EHR-related behaviors and asked them to indicate which one they preferred. EHR-related behaviors were (1) typing: continuous/intermittent/handwriting in biomedical or psychosocial focused consultations; (2) maintaining contact while typing: visual/verbal/both; (3) signposting the use of EHR: with/without; (4) position of physicians’ hands and bust: on the keyboard and towards the patient/away from the keyboard and towards the patient/on the keyboard and towards the screen. Key Results Three hundred thirty-six patients participated (response rate 61.4%). They preferred intermittent typing versus handwriting or continuous typing for biomedical issues (32.7%; 95% CI: 26.0–40.2% vs 31.6%; 95% CI: 24.9–39.0% or 14.9%; 95% CI: 10.2–21.1%) and psychosocial issues (38.7%; 95% CI: 31.6–46.3% vs 24.4% 95% CI: 18.4–31.5% or 17.9%; 95% CI; 12.7–24.4%). They favored visual and verbal contact (38.9%; 95% CI: 31.9–46.3%) over verbal (30.3%; 95% CI: 23.9–37.5%) or visual contact only (11.4%; 95% CI: 7.5–17.1%) while the doctor was typing. A majority preferred signposting the use of EHR versus no signposting (58.9%; 95% CI: 53.5–64.0% vs 34.8%; 95% CI: 29.9–40.1%). Finally, half of the patients (49.7%; 95% CI: 42.0–57.4%) favored the position with the physician’s bust towards the patient and hands away from the keyboard. Conclusions Our study shows that patients’ preferences regarding EHR-related behaviors are in line with most experts’ recommendations. Such recommendations should be more consistently integrated into under- and postgraduate communication skills training.

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