Is the flexural strength of brittle materials measured from 3PB test is equal to that measured from 4PB test? and Why? Just a brainstorming exercise

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Is there an accurate test measure the age of concrete?

07 August 2019 5,534 6 View

Adhesion strength of coating?

How can I determine a good adhesion strength range for coatings on polymer surfaces, such as DLC on polymer substrates? Is there a specific threshold for adhesion strength (from T-peel tests)...

10 August 2024 942 3 View

London dispersion in CCl4 vs the dipole-dipoles force strength in CHCl3?

How do you tie-break and rank these two in their strength?

03 August 2024 4,471 1 View

What are the limitations and challenges of using machine learning for predicting concrete compressive strength in practical applications?

Machine learning (ML) has shown great potential in predicting the compressive strength of concrete, an important property for structural engineering. However, its practical application comes with...

03 August 2024 2,546 2 View

What is the role of oxidative stress in toxin-induced carcinogenesis?

What is the role of oxidative stress in toxin-induced carcinogenesis? I am currently researching the impact of environmental toxins on children's health and would greatly appreciate insights from...

02 August 2024 3,174 1 View

"Idrisi Selva" tutorial Books for pridiction with driving factors in modeling?

Some educational books with practical exercises of the "Idrisi Selva" software, which have step-by-step visual training for predicting the change of land use/land cover and including the use of...

28 July 2024 4,168 0 View

Could GSH level be more in CCL4 rats than negative control rats?

i compare between the antioxidant and oxidative stress level between negative control rats (saline) and CCL4 intoxicated rats. i found the level of GSH and TAC is more in toxic group than normal....

26 July 2024 1,887 0 View

Can we eliminate the stress singularity at the tip of the crack by manipulating the elastic constants?

The aim of the research here is to prevent the propagation of the crack in the fabricated elastic medium with useful applications.

25 July 2024 9,976 3 View

How do nutrient transporters and aquaporins interact under abiotic stress in plants?

"The Correlation between Nutrition and Transport Mechanism under Abiotic Stress in Plants: A Comprehensive Review" by Muhammad Saleem, Jianhua Zhang, Muhammad Qasim, Rashid Iqbal, and Li Song,...

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A twin-shaft kiln or a rotary kiln for lime production 1 class? if compressive strength of limestone is low 60 MPa?

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How can alternative crops for augmenting farmers’ income in abiotic stress regions and impact of abiotic environmental stresses on crop quality?

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Hossam E. M. Sallam

Is the moment distribution along the beam span affected its ultimate load?

Rujie He

Not equal.

Xing Zhao

4PB has a uniform bending moment distribution. Some defects of sample may not be shown in the 3PB test because of the stress concentration.

Baybora Bitlisli

Free body diagram is shown...