22 July 2019 7 8K Report

What the suitable protocol to analysis the solvent like methanol of acetic acid (organic acid)?

Can I detect the concentration of residue methanol by HPLC?

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Is there a direct connection between zero core reluctance and zero leakage flux?

I have seen that some lecturers claim the leakage flux of a transformer will automatically become zero in case it has an ideal iron core. I want to say NO! This is correct for a system with a...

03 May 2024 4,010 14 View

Can engineers help me answer the questionnaire?

I need help with one survey to reach 3000 people (response). I will be really thankful if anyone can reply and share this...

01 February 2024 1,437 7 View

Is it possible to apply Industry 4.0 and Marketing 4.0 in a service company?

Industry 4.0 and Marketing 4.0 are the latest developments in these two functions and will affect the work of companies in general and service companies in particular. Certainly, this use has many...

27 January 2024 1,545 2 View

Do you use the hardness of pomegranate peel to determine the harvest date?

The hardness of the peel of pomegranate fruits is affected by irrigation, the environment, and the number of fruits on the tree, so it is difficult to rely on the hardness of the peel in...

10 January 2024 3,609 1 View

How can I make a buffered nutrient solution which be susceptible in alkaline environment?

I want to make a nutrient solution. When I use it in alkaline soils, some of elements such as P, Fe, Zn, Mn, Cu will change to non soluble salts which are not available to plant. How can I make a...

26 October 2023 6,655 0 View

How the water increases the Concrete Slump?

Dear Sir, We all know that the water cement ration 0.45, which may vary due to the Mix-Design. But during the concrete due to changes of weather & materials SSD condition the slump changed...

12 October 2023 3,379 6 View

What are the parameters using for synthesis nanoparticles in liquid using laser ablation?

please i would like to collect all the parameters related to the synthesis of nanoparticles using laser ablation, in terms of laser parameters, liquid parameters, environment parameters and if any...

27 September 2023 5,713 7 View

What is the Effect of container diameter on nanofluid stability?

Long time a go, I came across a journal paper that describes the effect of vial or container diameter on the dispersion stability of nanofluid. It mentioned that, if three vials had the same...

25 August 2023 5,261 3 View

How to model CFRP?

Hello, I have a study of columns strengthened with 2, 4, and 6 layers of unidirectional CFRP. 1)- Does the number of layers refer to the number of plies, or should I divide each layer into 2...

28 July 2023 7,659 2 View

How can receive Li-Fi use smart phone camera?

In Li-Fi technology, information is sent by an LED and a receiver receives the information The question is, that its possible to receive information through a smartphone camera without an external...

09 July 2023 1,319 0 View

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Separation of organic acids-HPLC?

Hello What should be done to separate and identify organic acids in HPC when their RetTime is the same?Like oxalic acid with Propanoic Acid.or acids that have a very close RetTime.

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Palmitic acid presence in aqueous fraction

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Determining the worth of a point improvement in Hamilton Depression Scale?

Dear readers, Thanks for your attention. I am wondering about the health economic problem of quantifying the value of interventions which a) prevent, b) improve symptom profile and c) ultimately...

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How to convert g/kg Humic acid dose to kg/ha?

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02 August 2024 7,186 6 View

I need to dissolve stigmasterol for an animal experiment, it hasn't dissolved in either DMSO or vegetable oil. Can anyone recommend the best solvent?

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Conjugation of PEG-Amine to an Amino Acid Using EDC?

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