scholarly journals Liability In Conducting Tests

1998 ◽  
Vol 15 (2) ◽  
Author(s):  
Roy J. Leonard
Keyword(s):  
Data Sheet ◽  
Building Code ◽  
Materials Testing ◽  
Testing Laboratory ◽  
Raw Data ◽  
Design Information ◽  
Laboratory Results ◽  
Forensic Engineering ◽  
Project File ◽  
Building Project

Instead Of Earning A Small Fee On A Building Project, A Materials Testing Laboratory Can Instead Become Involved In Litigation Which Could Cost It And Its Liability Insurers An Amount Many Times The Fee. But More Than This, There Could Also Be An Infinitely Greater Amount Of Time Spent Defending The Firm Than Was Ever Spent In Performing The Tests. In The Majority Of Cases The Tests Are Performed To Either Supply Design Information Or Monitor Compliance With Project Specifications And/Or Building Code Requirements. However, If Problems Develop And Litigation Begins, Then The Project File Information Becomes Evidence Of What Took Place On The Project. In Some Cases, However, The Laboratory Is Employed After Litigation Has Begun, Or The Probability Of A Lawsuit Is High, And The Testing Is Performed To Provide Evidence. In Any Event, The Results Of These Tests Are Taken As Essential Facts Which Will Be Reviewed By The Attorneys And Their Forensic Engineering Experts. Sometimes The Technicians Or Managers Of The Firm Providing These Field Or Laboratory Results Will Be Deposed, And Every Raw Data Sheet, Report And Log In The File May Be Examined In Great Detail By The Various Parties. If One Error Is Found, It May Be Contended That There May Be Other Errors Which Have Not Been Found Yet. If It Develops That Any Errors Or Suspected Errors Were Made, Then The Laboratory May Become Party To The Lawsuit.

Questions to the Article: An Artificial Intelligence Model to Predict the Mortality of COVID-19 Patients at Hospital Admission Time Using Routine Blood Samples (Preprint)

2020 ◽  
Author(s):  
Shu-Chun Kuo ◽  
CHIEN WEI ◽  
Willy Chou
Keyword(s):  
Data Entry ◽  
Ann Model ◽  
Model Accuracy ◽  
Data Format ◽  
Raw Data ◽  
Probability Of Survival ◽  
Testing Data ◽  
Laboratory Results ◽  
Data Yield ◽  
Artificial Neural Network Ann

UNSTRUCTURED The recent article published on December 23 27 in 2020 is well-written and of interest, but remains several questions that are required for clarifications, including (1) 30 feature variables with normalized format(mean=0 and SD=1) required to compare model accuracy with those with the raw-data format; (2)inconsistency in variable numbers between entry and preview panels in Figure 4 and reference typos; and (3) data-entry format with raw blood laboratory results in Figure 4 inconsistent with the model designed using normalized data to estimate parameters. We conducted a study using the training and testing data provided by the previous study. An artificial neural network(ANN) model was performed to estimate parameters and compare the model accuracy with those eight models provided by the previous study. We found that (1) normalized data yield higher accuracy than that with the raw data; (2) typos definitely exist at the bottom review (=32>30 variables in the entry) panels in Figure 4 and typos in Table 6; and (3)the ANN earns a probability of survival(=0.91) higher than that(=0.71) in the previous study using the similar entry data when the raw data are assumed in the app. We also demonstrated an author-made app using the visualization to display the prediction result, which is novel and innovative to make the result improved with a dashboard in comparison with the previous study.

Roof snow loads in Canada

1980 ◽  
Vol 7 (1) ◽  
pp. 1-18 ◽  
Author(s):  
D. A. Taylor
Keyword(s):  
Building Code ◽  
Detailed Design ◽  
Design Information ◽  
Snow Loads

The National Building Code of Canada requires buildings to be designed to carry uniformly and nonuniformly distributed snow loads and the "Commentary on Snow Loads" in Supplement No. 4 to the National Building Code of Canada gives detailed design information. This paper discusses the material given in the 1977 commentary and supplements it with examples and photographs.

scholarly journals Forensic Engineering Investigation Of Dezincification In A Major Corrosion Litigation

2013 ◽  
Vol 30 (1) ◽  
Author(s):  
Robert N. Anderson
Keyword(s):  
Zinc Content ◽  
Building Code ◽  
Insurance Companies ◽  
Urban Location ◽  
Home Owner ◽  
Plumbing Systems ◽  
Forensic Engineering ◽  
Low Strength ◽  
Engineering Investigation

Zinc-Rich Brasses With The Zinc Content Above 30% Can Be Involved In Corrosion Processes With Catastrophic Results. The Dezincification Results In A Low Strength Copper With A Porous Sponge Like Structure. The Case, Where Dezincification Occurred With Massive Impact, Involved 34,000 New Homes In An Urban Location In Nevada. These Homes Were Constructed Using Building Code Approved Plastic Pex Tubing For Plumbing With Brass Fittings. Leaks Developed In The Home Plumbing Systems After Approximately 3-6 Years. This Failure Resulted In Lawsuits Involving Home Owner Associations, Insurance Companies, Contractors, Plumbers, Architects, Manufacturers, And Suppliers.

scholarly journals Forensic Engineering Analysis of Dynamic Forces Created by Pedestrians Impacting Plate Glass at Different Speeds

2015 ◽  
Vol 32 (1) ◽  
Author(s):  
Michael Kravitz
Keyword(s):  
Impact Load ◽  
Building Code ◽  
Engineering Analysis ◽  
Glass Panel ◽  
Impact Speed ◽  
Dynamic Forces ◽  
Exit Door ◽  
Forensic Engineering ◽  
Pedestrian Impact ◽  
The Impact

This paper examines the effect of a pedestrian inadvertently impacting a glass panel adjacent to a glass exit door. The glass panel was full length and unmarked, violating the local building code and building commissioner directives. The defense argued that the old building code, to which the college building was constructed, was “grandfathered” and there was no violation. Initial witness and plaintiff statements indicated that the plaintiff was running when he struck the panel, which shattered and caused the plaintiff to incur injuries. The plaintiff testified later, in deposition, that he was walking when he struck the glass. The court needed to establish liability percentage, which is common in civil cases, and it was necessary to determine at what pedestrian impact speed the glass panel would break. The analysis used Timoshenko’s theory of vibration plates, Roark’s stress strain formulas, ergonomics, and human factors to estimate the impact load and stresses on the glass panel that caused failure.

scholarly journals Forensic Engineering Data Collection For Stairway Incidents

2007 ◽  
Vol 24 (2) ◽  
Author(s):  
Wilbur T. Yaxley ◽  
Armstrong Jeffrey D.
Keyword(s):  
Data Collection ◽  
Building Codes ◽  
Building Code ◽  
Engineering Data ◽  
Forensic Engineering ◽  
Riser Height ◽  
Design Construction

Forensic Engineers Are Often Called Upon To Investigate Injury Events On Stairs. A Significant Number Of Injuries And Deaths Occur On Stairways. With A Background In Design, Construction, And Building Codes, Forensic Engineers Can Identify The Appropriate Codes With Which The Stairs Might Be Required To Comply, Can Determine Whether Deficiencies Exist And To What Extent, And Whether Deficiencies Are Related To The Design Or The Construction Of The Facility. Data Collection On Stairways Can Be Difficult And Tedious. Measurements Of Tread Depths And Riser Heights Must Be Measured With Precision To Compare With Allowable Tolerances. This Paper Presents Various Means Of Collecting Data Related To Stairways, Including Documentation Of Tread Depth, Riser Height, Tread Slope, Nosing, Handrails, And Headroom Clearances. The Paper Will Also Introduce A Device That Was Developed And Validated By The Authors For Measuring Treads And Risers. This Paper Focuses Only On Data Collection Methodologies, And Does Not Present Analyses Or Render Opinions With Regard To Building Code Requirements. The Building Code Requirements That Are Presented Herein Are Only For The Purpose Of Illustrating Typical Code Requirements, To Illustrate Why Various Data Must Be Collected, And To Review Proper Methods Of Data Collection.

Virtual Reality’s Role in Improving Student Knowledge and Engagement in the Materials Testing Laboratory

2021 ◽  
pp. 113-121
Author(s):  
Rajesh Jha ◽  
Douglas Choi ◽  
Rebecca Traboulsi ◽  
Arun Srinivasa
Keyword(s):  
Materials Testing ◽  
Student Knowledge ◽  
Testing Laboratory

scholarly journals Different materials and techniques for accurate molding for adaptation in angled implants

2014 ◽  
Vol 62 (2) ◽  
pp. 149-152 ◽  
Author(s):  
Lisliane Nara Rossi LEANDRO ◽  
Rui Barbosa de BRITO JÚNIOR ◽  
Marcelo Lucchesi TEIXEIRA ◽  
Luiz Martins TURANO ◽  
Luciana Jardini da CUNHA
Keyword(s):  
Correlation Coefficient ◽  
Horizontal Plane ◽  
Accurate Result ◽  
Sao Paulo ◽  
Materials Testing ◽  
Testing Laboratory ◽  
Whitney Test ◽  
Mann Whitney Test ◽  
Different Types ◽  
Master Model

OBJECTIVE: To evaluate the marginal misfit between intermediate and micro-unitmetal cylinder, by varying the angle of the implants, using two different types of material and different molding techniques. METHODS: A model was made with three implants (one perpendicular to the horizontal plane and two inclined) using micro-unit intermediates. A rod attached to the master model served as a control condition to evaluate the suitability of the twenty specimens, carried out with the help of an optical stereomicroscope (Pantec, Brazil; Materials Testing Laboratory, São Leopoldo Mandic, Campinas, São Paulo). RESULTS: Evaluator reliability was assessed using theIntraclass Correlation Coefficient, obtaining 99.6% (excellent). There were significant differences between groups, and the Mann-Whitney test compared groups in pairs for a more accurate result. CONCLUSION: The group which presented the best behavior was open tray and condensation silicone and the worst result, that needed to be cast several times, was closed tray and condensation silicone.

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