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Extreme Convective Gusts in the Contiguous USA

Most damage to buildings across the contiguous United States of America (USA) is caused by gusts in convective events associated with thunderstorms. Design rules for structures to resist these events rely on the integrity of meteorological observations and the methods of assessment. These issues were addressed for the US Automated Surface Observation System (ASOS) in six preliminary studies publis...
Posted 4 weeks ago

Mechanical characteristics of dissimilar friction stir welding processes of aluminium alloy [AA 2024-T351 and AA 7075-T651]

Aerospace industries have remained dependent on aluminium alloys for airframe structural components manufacturing due to their superior strength, fracture toughness, and ability to resist corrosion. Especially, AA2024 and AA7075 have been the most prominent and timely tested robust aluminium alloys in these manufacturing sectors. However, joining these aluminium alloys through conventional fusion ...
Posted 4 weeks ago

Multi-Response Optimization of Process Parameters in Friction Stir Welding of AA 8011-H14 / AA 5052-H34 using Taguchi Grey Relational Analysis

Friction stir welding (FSW) offers a distinct advantage in its ability to effectively join dissimilar metals and alloys. This study focuses on the butt welding of AA 8011-H14 and AA5052-H34 through FSW, aiming to explore the influence of process parameters on crucial mechanical properties such as ultimate tensile strength, yield strength, percentage elongation, and hardness. The examination of the...
Posted 4 weeks ago

Unexpected abnormal coagulation test results in a 2-year-old child

Rejection of the sample with repeated blood withdrawal is always an unwanted consequence of sample nonconformity and preanalytical errors, especially in the most vulnerable population – children. Here is presented a case with unexpected abnormal coagulation test results in a 2-yearold child with no previously documented coagulation disorder. Child is planned for tympanostomy tubes removal unde...
Posted 4 weeks ago

All Articles

Extreme Convective Gusts in the Contiguous USA

Mechanical characteristics of dissimilar friction stir welding processes of aluminium alloy [AA 2024-T351 and AA 7075-T651]

Multi-Response Optimization of Process Parameters in Friction Stir Welding of AA 8011-H14 / AA 5052-H34 using Taguchi Grey Relational Analysis

Unexpected abnormal coagulation test results in a 2-year-old child

How Should Surveillance Systems Account for Concurrent Intravascular Catheters?

Challenges in Predicting Lyme Disease Risk

Managing Uncertainty in Prenatal Diagnosis of Congenital Heart Disease

Limitations of Meta-analyses of Studies With High Heterogeneity

The Uncertain Science of Predicting Death

Tobacco Use in High-Risk Populations