Welcome to IgMin Research – an Open Access journal uniting Biology, Medicine, and Engineering. We’re dedicated to advancing global knowledge and fostering collaboration across scientific fields.
At IgMin Research, we bridge the frontiers of Biology, Medicine, and Engineering to foster interdisciplinary innovation. Our expanded scope now embraces a wide spectrum of scientific disciplines, empowering global researchers to explore, contribute, and collaborate through open access.
Welcome to IgMin, a leading platform dedicated to enhancing knowledge dissemination and professional growth across multiple fields of science, technology, and the humanities. We believe in the power of open access, collaboration, and innovation. Our goal is to provide individuals and organizations with the tools they need to succeed in the global knowledge economy.
IgMin Publications Inc., Suite 102, West Hartford, CT - 06110, USA
We strive to create a platform for scientists to engage across different fields and drive rapi
Biography
Dr. Charles C. Thiel Jr. is a seasoned engineer and researcher specializing in earthquake engineering, risk assessment, and uncertainty analysis. With over 30 years of experience, he has contributed significantly to the development and application of methodologies that evaluate the seismic vulnerability of structures.
Dr. Thiel earned his Ph.D. in Engineering Sciences from Purdue University in 1970. Since then, he has been at the forefront of seismic risk analysis, particularly in the context of building evaluations. Notably, he has assessed the probable maximum losses (PML) for over 1,000 buildings, encompassing nearly 50 million square feet of space. His expertise has been instrumental in shaping seismic standards and guidelines, including his role as co-chairman in developing ASTM E2026-99, the first technical standard for performance of seismic vulnerability evaluations.
In addition to his technical contributions, Dr. Thiel has been an active participant in various committees aimed at enhancing seismic safety. He chaired the committee that developed seismic retrofit and repair standards for existing buildings for the California Building Code (Title 24) and led the ATC-35 Ground Motion Initiative to develop next-generation representations of seismic ground motion for design and regulatory applications.
Currently, Dr. Thiel serves as the principal at Telesis Inc., with offices located at 14 Wood Street, San Francisco, CA 94118, and 361 South Palouse Street, Walla Walla, WA 99362. He continues to engage in research and consulting, focusing on enhancing the reliability and effectiveness of professional assessments in engineering.
His work underscores the importance of understanding and mitigating uncertainties in engineering assessments, ensuring that decisions are based on sound, reliable data.
Research Interest
Dr. Charles C. Thiel Jr.'s research interests primarily focus on earthquake engineering, seismic risk assessment, and uncertainty analysis in structural engineering. He specializes in evaluating the seismic vulnerability of buildings, with a particular emphasis on the probabilistic assessment of structural damage during seismic events. His work is pivotal in developing methods to quantify the potential losses buildings may face during earthquakes, contributing to safer design practices. Dr. Thiel has worked extensively on developing seismic retrofit and repair standards for existing structures, helping to guide regulatory frameworks and improve building resilience. He is also interested in advancing the understanding of seismic ground motions, having led initiatives to create next-generation models for predicting ground motion behavior. Additionally, Dr. Thiel’s research aims to enhance the accuracy and reliability of professional assessments, ensuring that engineering evaluations are based on sound methodologies that can mitigate risks associated with natural disasters.
Open Access Policy refers to a set of principles and guidelines aimed at providing unrestricted access to scholarly research and literature. It promotes the free availability and unrestricted use of research outputs, enabling researchers, students, and the general public to access, read, download, and distribute scholarly articles without financial or legal barriers. In this response, I will provide you with an overview of the history and latest resolutions related to Open Access Policy.
All professional technical assessment processes are fraught with uncertainty. If a decision is premised upon the result, the decision maker must understand the reliability of the performed assessment. A causal theory application is developed utilizing distinct (linguistic, ordered) terms and continuous (numerical) variables. It uncouples the methods from the result of the assessment obtained and focuses on those aspects that are important to the reliability assessment of the conclusion, not the answer itself. Matrices provide a means of charact...erizing the uncertainty of the methods and information available for each principal issue impacting the reliability. These matrices are determined as paired qualitative assessments of the Quality of the Measures Used and the Quality of Implementation of component description measures. Each is qualified by two to five grades, allowing three, five, seven, or nine quality distinctions for the assessed element. Uncertainty β values are determined for each component of the assessment combined by either an RMS procedure or a weighted average and converting a numerical value back to a consistent linguistic term. This procedure yields a basis for using good judgment while being sensible and reasonably cautious by independently determining the reliability using a carefully considered approach. California State University has assessed seismic retrofit priorities for 56 buildings using this method and has committed to its continuing use as its retrofit priority evaluation tool.
0000-0002-6860-122X 
