scholarly journals Statistical analysis of typical elevator accidents in China from 2002 to 2019

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Shengnan Lan ◽  
Saihua Jiang ◽  
Jun Qiu ◽  
Zijian Wan ◽  
Lian Chen ◽  
...  
Keyword(s):  
Statistical Analysis ◽  
Accident Investigation ◽  
Related Factors ◽  
The Future ◽  
Official Sources ◽  
Statistical Results

Abstract By utilising data from official sources, a statistical analysis was made on the elevator accidents that occurred in China during the period 2002 to 2019 on five aspects namely elevator type, occurrence stage, casualty’s identity, accident type and accident causes. The main purpose is to use the frequency and correlation among related factors to evaluate crucial causes, and to prevent similar accidents among technicians and users. Based on the statistical results and discussion, some proposals were put forward to the management of the responsible authorities for accident investigation and prevention of similar elevator accidents in the future.

The Role of External Auditor Responsible in Examining and Assessing the Sustainability Dimensions of the Audited Companies

2021 ◽  
Vol 39 (11) ◽  
Author(s):  
Asaad Mohammed Ali Wahhab
Keyword(s):  
Statistical Analysis ◽  
Random Sample ◽  
Corporate Sustainability ◽  
Professional Responsibility ◽  
Global Reporting Initiative ◽  
External Auditors ◽  
The Future ◽  
Study Population ◽  
External Auditor

The study aims to identify the responsibility of the external auditor in examining and evaluating the dimensions of sustainability information from the perspective of the auditors who are working in Iraqi companies and auditing offices. To achieve this goal, a questionnaire was created and distributed to a random sample of the study population consisting of auditors working in Iraqi companies and auditing offices. 83 questionnaires were retrieved, and all were valid for statistical analysis, which indicates100% of the sample study. The results of the study show that there is awareness among the external auditors in Iraq about their responsibility to examine and evaluate information related to dimensions of economic, environmental and social and the governance rules for sustainability and their application of the standards on the global reporting initiative (GRI). Besides, the presence of high trend among the auditors causing them to be accountable to the society who are the stakeholders, causing problems that can hinder the performance of the auditors in fulfilling their professional responsibility. This study will highlight several pieces of evidence from the works of literature as references of information to the external auditor and the corporate sustainability in Iraq to the future empirical and theoretical researcher.

Projecting conflict risk following the Shared Socioeconomic pathways: what role for water stress and climate?

2021 ◽  
Author(s):  
Sophie de Bruin ◽  
Jannis Hoch ◽  
Nina von Uexkull ◽  
Halvard Buhaug ◽  
Nico Wanders
Keyword(s):  
Climate Change ◽  
At Risk ◽  
Machine Learning Techniques ◽  
Mitigation Measures ◽  
Related Factors ◽  
Socioeconomic Impacts ◽  
Learning Techniques ◽  
The Future ◽  
Conflict Risk

<p>The socioeconomic impacts of changes in climate-related and hydrology-related factors are increasingly acknowledged to affect the on-set of violent conflict. Full consensus upon the general mechanisms linking these factors with conflict is, however, still limited. The absence of full understanding of the non-linearities between all components and the lack of sufficient data make it therefore hard to address violent conflict risk on the long-term. </p><p>Although it is neither desirable nor feasible to make exact predictions, projections are a viable means to provide insights into potential future conflict risks and uncertainties thereof. Hence, making different projections is a legitimate way to deal with and understand these uncertainties, since the construction of diverse scenarios delivers insights into possible realizations of the future.  </p><p>Through machine learning techniques, we (re)assess the major drivers of conflict for the current situation in Africa, which are then applied to project the regions-at-risk following different scenarios. The model shows to accurately reproduce observed historic patterns leading to a high ROC score of 0.91. We show that socio-economic factors are most dominant when projecting conflicts over the African continent. The projections show that there is an overall reduction in conflict risk as a result of increased economic welfare that offsets the adverse impacts of climate change and hydrologic variables. It must be noted, however, that these projections are based on current relations. In case the relations of drivers and conflict change in the future, the resulting regions-at-risk may change too.   By identifying the most prominent drivers, conflict risk mitigation measures can be tuned more accurately to reduce the direct and indirect consequences of climate change on the population in Africa. As new and improved data becomes available, the model can be updated for more robust projections of conflict risk in Africa under climate change.</p>

scholarly journals The Influence of Design Parameters on Straight Bevel Gear Dynamics

2015 ◽  
Vol 5 (2) ◽  
pp. 114
Author(s):  
Chiu-Fan Hsieh ◽  
You-Qing Zhu
Keyword(s):  
Statistical Analysis ◽  
The Other ◽  
Design Parameters ◽  
Bevel Gears ◽  
Straight Bevel Gear ◽  
Pressure Angle ◽  
Stress Fluctuation ◽  
Shaft Angle ◽  
Statistical Results ◽  
Component Force

<p class="1Body">This study analyzes the influence of design parameters on the dynamics of straight bevel gears by constructing a model that allows variation in the shaft angle, pressure angle, and backlash. According to the statistical analysis, the order of influence of these parameters on weight is shaft angle &gt; pressure angle &gt; backlash. When the shaft angle is 90°, the statistical results show the drive is stable and the stress fluctuation level is low. The pressure angle, on the other hand, can affect the gear’s dynamic property by influencing the driving component force on the gear and the component force on the shaft. The results for the shaft and pressure angles are used to determine the appropriate backlash. Overall, the analysis not only provides designers with an important reference but explains the dominance in the market of gear designs with a 90° shaft angle and a 20° pressure angle.</p>

Models for Codifying International Rules for Jurisdiction, Liability, Safety and Accident Investigation for Commercial Passenger Spaceflight

2014 ◽  
Vol 83 (3) ◽  
pp. 251-292 ◽  
Author(s):  
Ricky J. Lee ◽  
Sarah L. Steele
Keyword(s):  
International Community ◽  
Civil Aviation ◽  
Flight Safety ◽  
Accident Investigation ◽  
Policy Makers ◽  
Maritime Law ◽  
Space Tourism ◽  
The Future

The prospect of commercial passenger spaceflight presents an unique opportunity to the space community, comprised not only of the scientists, engineers, enthusiasts and entrepreneurs, but also diplomats, governments, policy makers and legislators, to formulate an internationally acceptable set of requirements, standards and procedures that would give international consistency to operators of commercial passenger spaceflight, both for space tourism and for terrestrial transportation. It is important that the international community avail itself of this opportunity before various countries decide to become “flags of convenience” or to impose more stringent standards than overseas operators can comply with so as to protect a budding industry of their own. This article will explore, from parallels in maritime law and civil aviation law, and drawing from existing domestic examples of regulation, what lessons may be learnt from such existing bodies of law and regulation that may provide some guidance for the future formulation of regulations for on range safety, flight safety or accident investigation relating to commercial passenger spaceflight.

scholarly journals The research on COVID-19 and economy from 2019 to 2020: analysis from the perspective of bibliometrics

2021 ◽  
Vol 12 (2) ◽  
pp. 217-268
Author(s):  
Nana Liu ◽  
Zeshui Xu ◽  
Marinko Skare
Keyword(s):  
Statistical Analysis ◽  
Value Added ◽  
Research Trends ◽  
Research Progress ◽  
Future Research ◽  
Human Society ◽  
Citation Networks ◽  
The Future ◽  
Meaningful Research

Research background: The outbreak and spread of COVID-19 brought disastrous influences to the development of human society, especially the development of economy. Purpose of the article: Considering that knowing about the situations of the existing studies about COVID-19 and economy is not only helpful to understand the research progress and the connections between COVID-19 and economy, but also provides effective suggestions for fighting against COVID-19 and protecting economy, this paper analyzes the existing studies on COVID-19 and economy from the perspective of bibliometrics. Methods: Firstly, the discussion starts from the statistical analysis, in which the basic distributions of the studies on different countries/regions, different publication sources, different publication years, etc., are presented. Then, the paper shows the cooperation situations of the researchers from analyzing the related citation networks, co-citation networks and cooperation networks. Further, the theme analysis of the related studies is presented, in which the related co-occurrence networks are shown, and then the detailed analyses of the studies are introduced. Based on these analyses, the discussions about future research are presented, and finally we draw a conclusion. Findings & value added: The analyses not only present the basic situation on the research about COVID-19 and Economy, but also show the future research trends, which can provide meaningful research expectations.

Designers’ Willingness Assessment to Use Recycled and Salvaged Materials in Landscape Architecture

2014 ◽  
Vol 935 ◽  
pp. 138-141
Author(s):  
Zahra Balador ◽  
Zahra Raeisi
Keyword(s):  
Statistical Analysis ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Landscape Architecture ◽  
The Other ◽  
Construction Sites ◽  
Material Management ◽  
Gas Emissions ◽  
Management Guidelines ◽  
Statistical Results

Using salvages and reused materials is an effort to conserve energy and other resources, and reduce greenhouse gas emissions; on the other hand, these materials cost a fraction of the price of new. The information generated by this study revealed several useful material management guidelines. Statistical results shows that designers who are educated about these products and how they can be used, are interested in using recycled materials, and can potentially decrease the amount of trash being produced on a much larger level. All information was obtained from product brochures, manufacturer websites, visiting construction sites, statistical analysis and conversations with designers.

scholarly journals The Pet Plant Project: Treating Plant Blindness by Making Plants Personal

2018 ◽  
Vol 80 (5) ◽  
pp. 339-345 ◽  
Author(s):  
Shawn E. Krosnick ◽  
Julie C. Baker ◽  
Kelly R. Moore
Keyword(s):  
Positive Reinforcement ◽  
Daily Basis ◽  
Fundamental Importance ◽  
Student Responses ◽  
Course Materials ◽  
Lecture Material ◽  
Qualitative Survey ◽  
The Future ◽  
Statistical Results

“Plant blindness” is defined as the failure to appreciate the fundamental importance of plants. To address this phenomenon, we created the Pet Plant Project (P3) where students grow an unknown plant from seed, monitor development, and relate lecture concepts to their plant on a daily basis. A qualitative survey was administered and analyzed to evaluate student responses to the experience. Themes in the analysis, identified across 209 student-participants at Tennessee Tech University, included positive reinforcement of lecture material, a new-found appreciation for plants, responsibility and pride related to plant care, a continued desire to grow plants, and more. Statistical results included: 73% of students noticed plants more after the project; 76% planned to grow plants in the future; and 68% made a connection with their own plant that bolstered engagement in course materials.

Expertise of Surgeons Publishing Novel Techniques in the Journal of Wrist Surgery

2021 ◽  
Author(s):  
Lara L. Cohen ◽  
Dustin H. Massel ◽  
Joseph S. Geller ◽  
David L. Chen ◽  
Seth D. Dodds
Keyword(s):  
Statistical Analysis ◽  
Surgical Techniques ◽  
Senior Author ◽  
New Technique ◽  
Novel Technique ◽  
Research Outcomes ◽  
Surgeon Experience ◽  
Standardize Reporting ◽  
Statistical Results

Abstract Introduction Recent efforts to standardize reporting of surgeon experience in novel technique publications have recommended reporting of Tang level of expertise (LOE). Question/Purpose The aim of this study was to document trends in LOE reporting for novel technique articles published in the Journal of Wrist Surgery and evaluate whether author experience affects novel research outcomes. Methods A total of 261 articles published from 2018 to 2020 were reviewed. Articles describing novel surgical techniques were included and examined for Tang LOE. Author variables were collected online. Results Eight percent (21/261) of articles discussed novel surgical techniques and one reported LOE. Nearly half (47.6%) of articles did not conduct statistical analysis. Four (19.0%) reported insignificant statistical results and 7 (33.3%) reported significant findings. All significant statistical findings were positive. Number of prior related publications by the senior author did not affect new technique result significance (p = 0.34). Discussion From 2018 to 2020, only one article documented LOE. Authors' variables, including number of prior related publications, were not correlated with significant results in their new publications. This may suggest that an author's established experience in a novel technique, quantified by prior publications on the topic, does not make one more likely to achieve significantly better or worse outcomes in their reviewed Journal of Wrist Surgery study. Conclusions Tang LOE is an important way for readers to classify expertise and should be reported, and potentially modified to better define contributing variables.

Impact of Human Factors on Measurement Errors

2013 ◽  
pp. 274-291 ◽  
Author(s):  
Vinodkumar Jacob ◽  
M. Bhasi ◽  
R. Gopikakumari
Keyword(s):  
Experimental Study ◽  
Statistical Analysis ◽  
Measurement Error ◽  
Measurement Errors ◽  
Human Error ◽  
Quantitative Comparison ◽  
Measuring System ◽  
Measuring Instrument ◽  
Related Factors ◽  
Human Errors

Measurement is the act or the result, of a quantitative comparison between a given quantity and a quantity of the same kind chosen as a unit. It is for observing and testing scientific and technological investigations and generally agreed that all measurements contain errors. In a measuring system where both a measuring instrument and a human being taking the measurement using a preset process, the measurement error could be due to the instrument, the process or human error. This study is devoted to understanding the human errors in measurement. Work and human involvement related factors that could affect measurement errors have been identified. An experimental study has been conducted using different subjects where the factors were changed one at a time and the measurements made by them recorded. Errors in measurement were then calculated and the data so obtained was subject to statistical analysis to draw conclusions regarding the influence of different factors on human errors in measurement. The findings are presented in the paper.

Sign in / Sign up

Export Citation Format

Share Document