Can someone provide me ASTM C133 standard?

I need to perform the relevant tests to obtain results such as the resistance to cold crush and the refractory rupture modulusI need it to perform these types of tests

05 February 2019 1,082 3 View

What is the best method for lipids extraction of leaves?

Hello! I need to extract lipids from three plants. What is the best method { If you can help me with a protocol, thank you regards

27 April 2018 5,853 4 View

How are emission factors (CO2e)for solid waste components calculated? I believe LCA is involved but Im not sure how ?

07 August 2017 6,340 4 View

What are the main challenges of direct 3D printing with precious metals?

I am doing my dissertation on mass customisation and engineering of jewellery products. One of my aims is to find out why direct 3d printing in particular in the jewellery industry has not been as...

06 August 2017 6,323 9 View

How do I aggregate PLA-PEG nanoparticles?

Hello everyone!! Currently, I am working on the fabrication of PLA nanoparticles with PEG adsorbed on their surface. I am based on the article "The internalization of fluorescence-labeled PLA...

18 December 2015 2,751 3 View

Can someone identify the eggs found in faeces of the river Otter, Lontra longicaudis?

Our Group (Laura Jaramillo and me) have two other parasite eggs found in faeces of the river Otter, that are different of the previously discussed

17 February 2015 4,916 5 View

Can we really measure test-retest reliability in memory tests?

It seems obvious that there is a big difference between being repeatedly exposed to a reaction time task, in which minimal or any learning at all is expected, and to be evaluated several times...

09 October 2014 8,615 12 View

What is the most difficult factor for elaborate Biodiesel?

The main factors for produce bio fuels

23 April 2014 3,230 4 View

After a reference from Int J Body Compos Res, can any body help?

Hi, I am after the reference below, my library says it cannot obtain a copy either locally or internationally, any help appreciated! Chris Wang ZM, Heshka S, Wielopolski L, Pi-Sunyer FX, Pierson...

03 March 2021 6,193 1 View

Is There Any Feasible Method To Test Fluorescent Compounds Other Than Fluorescence Spectrometers ??

Is There Any Feasible Method To Test The Efficiency Of Fluorescent Compounds Other Than UV Spectrometers ? Suggestions Would Be Appreciated !

02 March 2021 5,785 3 View

How to compare different concentrations of nanoparticles for characterization from ICP-MS?

I took measurements of different concentrations of 15 nm and 5 nm Au nano particle solutions. I'm trying to determine which concentration I measured gives the best reading overall. I also...

02 March 2021 7,626 1 View

Timeout error!! Processor in the loop (PIL) using STM32F4 Matlab 2018a?

Dear Researchers I am trying to perform a PIL simulation using STM32F4 Discovery board and comunication serial USB TO TTL. During simulation I receive the following timeout error: An error...

01 March 2021 2,327 1 View

Any research papers for extraction of nutrient deprivation on macroalgae? Analysed by HPLC-UV and GC/MS. Possibly from macroalgae genus Rhizoclonium?

I am doing my thesis on the nutrient deprivation on the macroalgae Rhizoclonium sp. I will be analysing the levels over a period of roughly 5 days by HPLC-UV and GC/MS. I will be using seawater as...

28 February 2021 6,477 1 View

How to Eliminate cosine error and abbe error in LASER measurement system(for example Rhenishaw XL80)?

I like to do project in laser measurement system. My objective is to eliminate or reduce the cosine error, abbe error in Laser measurement system. I have Rhenishaw XL80 system. Please tell the...

28 February 2021 4,890 3 View

Is there any published or unpublished statistics on dropout rate (Dose1 to Dose-2) for Covid-19 vaccination in India, US, UK or any other country?

Are there any published or unpublished statistics or papers on the dropout rate (Dose1 to Dose-2) for Covid-19 vaccination in India, USA, UK, or any other country where vaccination has started at...

28 February 2021 4,237 1 View

I want to performe MALDI-TOF MS for bacterial identification, I would appreciate it if anyone can tell me the matrix solution preparation protocol ?

based on what I've studied on multiple papers, for peptide and protein identification Alpha-cyano-4-hydroxycinnamic acid (CHCA) is an appropriate matrix to use, I also know that the CHCA powder...

26 February 2021 6,799 3 View

Why initial concentration of Pb not the same as calculated one when testing using AAS?

I am currently doing research on the adsorption of heavy metal using magnetic reduce graphene oxide. I use AAS to determine the concentration of the heavy metal. I prepare the Pb solution with...

26 February 2021 9,580 4 View

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I am trying to find how to know the density needed for a pva electrospinning in a 0.6mm neddle, the electrospinning will be from top to bottom and the problem I really have is the solution because...

25 February 2021 2,615 3 View