AEM Rubber hardness problem?

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What is the mechanism of action of ipatropium as a bronchodilator?

ipatropium is used as an anti-asthma drug, what is the target of action of ipatropium and how does the mechanism

10 June 2023 7,007 1 View

Is it possible to study Kinetic-thermodynamic-equilibrium for degradation/absorption or solubility dataset using Response surface methodology (RSM)?

How to examine kinetic modelling, thermodynamic and equilibrium calculations in a degradation/absorption or solubility study using response surface methodology (RSM)? Which RSM models are suitable...

07 January 2022 9,014 5 View

How much tween 20 or ethanol should i use in order to dissolve 1 ml of essential oil?

Is there any standard or procedure for this? Thanks in advance.

07 September 2020 5,236 3 View

Why doesn't RG list country-specific university departments?

It is my observation that RG lists name of each regular department at each university heading. But, there are some departments that are not similar in each country. One example is "Department of...

08 June 2020 4,014 2 View

Does anybody have experience with high or varying RFU (relative fluorescence unit) values between replicates in qPCR?

I have run a qPCR-assay using a Cy5-probe. On one of the plates, some technical replicates have very high RFU-levels, but the Ct-values of the replicates are almost identical. Does anybody know...

05 March 2020 6,710 4 View

Which softwares can I use to analyze 16S rRNA metagenomic data to elucidate the community structure?

Actually what i want to know is that do we have access to the codes of the software.

22 December 2016 1,014 5 View

How can I run GAMS in an excel interface?

I have a pocket program project with an excel interface but i need to run GAMS behind it. It includes an optimization model.

01 February 2016 1,124 3 View

When we calculate the geometric mean for AHP, how important is the "size of n"?

For example n=250, the geometric mean is still maintaining validity?

10 August 2014 3,589 3 View

Can we couple forward osmosis and membrane distillation to improve overall recovery?

Looking for experiments/experiences where forward osmosis is coupled with membrane distillation to improve overall water recovery or separate draw solution from the treated water?

24 March 2014 8,378 10 View

Besides NF and RO, what is the best technology or method to remove TCEP (Tris (2-chloroethyl) phosphate)?

TCEP is relatively persistent to biodegradation and advanced oxidation. It has a relatively low octanol water partition coefficient (log Kow=1.3) which results in less than 50% removal via...

17 February 2014 6,548 3 View

Can formaldehyd-fixed gelatin be melt?

I am puzzled about the properties of gelatin, when used for tissue-embedding. Hard gelatin can be melt again by temperatures about 40°C. Formalin-fixed gelatin is like crosslinked protein and...

07 August 2024 1,686 1 View

Why am I getting "shark finn"-like signal?

My collegue and I are having hard time to understand what is happening. Basically we have a tapping device that work with Arduino and a pneumatic pump. The pump allows the tapping of two...

04 August 2024 4,662 1 View

In SEM, if a latent variable consists of three observed variables, and each observed variable has four items, what should I do?

Suppose I am studying the construct of "Academic Motivation" (latent variable) in students, which is measured through three observed variables: "Intrinsic Motivation," "Extrinsic Motivation," and...

31 July 2024 3,913 6 View

How to add viscosity into a hyperelastic material such as Mooney-Rivlin rubber in LS-DYNA?

Hi, I am working on a head FE model and want to try different material types on brain. I read some papers that use Mooney-Rivlin rubber model and wondering if i can add viscosity into it. Is it...

24 July 2024 5,908 0 View

Mechanochemistry: ball to powder mass or ball to powder volume?

I run mechanochemical reactions that involves the use of a large amount of catalyst (1:1 molar ratio to the reactant). When I try to understand the effect of amount of catalyst on the reaction, I...

23 July 2024 9,938 1 View

For 3d transition metal elements, is there a mathematical expression for the energy E in their hard X-ray absorption spectrum?

Only the absorption side is considered, and the fine structure of the extended side is not considered

05 July 2024 2,894 2 View

How hard is it to get a patent?

I would like to know how hard it is to get a patent for our invention.

04 July 2024 4,092 4 View

What is polymer/chemicals can increase the swelling index of a polymeric film?

Polymeric film such as latex rubber substrate or polymer

01 July 2024 8,343 4 View

What role does grain size play in the mechanical properties of nanocrystalline metals and how can this be controlled during the manufacturing process?

In nanocrystalline metals, the size of their crystalline grains affects how strong, ductile, and hard they are. Smaller grains often mean stronger metals but can reduce ductility. Controlling...

28 June 2024 6,925 0 View

What are the engineering applications of polyethylene with waste tire rubber?

When polyethylene, whether high-density or low-density, is mixed with percentages of waste tire rubber, it becomes a new material. Where can it be used?

26 June 2024 3,349 2 View