How do engineer determine the number of cells for concrete box girder bridges?

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In joints of precast concrete bridge segments, what are the functions of applying epoxy adhesive?

08 September 2018 4,118 8 View

If on-site slump test fails, should engineers allow the contractor to continue the concreting works?

08 September 2018 7,233 8 View

Are diaphragms necessary in the design of concrete box girder bridges?

07 August 2018 9,232 5 View

What are the problems associated with this method in terms of shrinkage of concrete?

In bridge widening projects, the method of stitching is normally employed for connecting existing deck to the new deck.

06 July 2018 2,366 4 View

In the design of elastomeric bearings, why are steel plates inserted inside the bearings?

06 July 2018 5,632 6 View

Pick up the correct statement regarding low heat cement from the following?

A.It possesses less compressive strength B.Its initial setting time is about one hour C.Its final setting time is about 10 hours D.Its mainly used for mass concrete work E.All the above.

06 July 2018 2,770 2 View

Does Water damage concrete?

06 July 2018 1,322 4 View

What are the functions of column in a building?

06 July 2018 5,733 1 View

What is the cement sand & aggregate ratios for various grades of concrete mix?

06 July 2018 8,706 1 View

Sometimes the side of concrete bridges is observed to turn black in colour. What is the reason for this phenomenon?

06 July 2018 7,548 7 View

Geotechnical Engineering (Proceedings of the ICE) time review?

Hello everyone, I recently submitted an article to Geotechnical Engineering (Proceedings of the ICE), and the current status has been listed as "EiC Pre-assessment: Ready" for the past 20 days. I...

10 August 2024 6,489 1 View

Why Do TDS and EC Increase with Larger Wastewater Volumes, While BOD and COD Decrease?

I have carried out MFC experiments on three different volumes, 50, 500 and 1000 mL of wastewater. Results after MFC treatment shows that TDS and EC are more in larger volumes of water i.e. TDS and...

09 August 2024 9,621 0 View

Could it be a cell culture contamination?

Hello everyone! I observed in my culture (htert-RPE1 cells) an orange- red particle at the bottom of the dish. It is visible to the naked eye as a very very small red dot. Could it be a...

09 August 2024 2,822 3 View

Is there any way to quantify bacterial and fungal cells in their mixed culture?

I am working in fungal fermentation of soybean meal and there is bacterial growth in them at times. I am trying to quantify fungal cell counts and bacterial cells; but I haven't been able to do at...

07 August 2024 7,535 4 View

How to fix errors in my heat transfer steel structure with reinforced concrete slab model Abaqus?

I have modelled a steel structure using beam elements in Abaqus and attached to this structure reinforced concrete slab. The analysis that I am making is heat transfer of the structure. The...

07 August 2024 1,027 0 View

Gromacs first step of minimization ?

I have face this problem anyone help me how to solve this issue ?which is below Fatal error: There are inconsistent shifts over periodic boundaries in a molecule type consisting of 78 atoms. The...

07 August 2024 2,597 1 View

How to normalize and take the significance of the MTT OD values with 3 replicates for the same cell-line?

Hi, I have a question about normalizing the MTT OD values for doing the statistical analysis. So, if we have 3 different plates and we call them 3 different replicates, so, first we would...

07 August 2024 8,104 4 View

Why activated CAR-Jurkat cell could not kill targets?

Previously when I co-coluture anti-CD19(FMC63) CAR-Jurkat with Raji with E:T=5:1, Jurkat can eliminate Raji in 24h. However, when I test another CAR construct, although I can dectect totally CD69...

06 August 2024 639 2 View

How to Add Missing Water Molecules in Protein-Membrane Simulations?

I have protein-membrane simulations (PDB, PSF, DCD) and have noticed that water molecules near the protein are not visible in the simulations. How can I fix this issue? Is there a way to place the...

04 August 2024 1,200 2 View

How to isolate lymphocytes from mouse spleen?

I have tried several times to isolate lymphocytes from mouse spleen, but all attempts have been unsuccessful. I tried most available protocols. I used different dissociation media (HBSS with Ca...

04 August 2024 9,913 7 View