What is the best antimicrobial agent among metal oxides?

I am looking for an antimicrobial metal oxide agent for a polymeric implant and I am wondering which one is the best?

21 January 2021 7,068 5 View

Detection of insect eggs in stored and processed products?

Currently, in order to identify insect eggs in stored or processed products (such as contaminated flour or wafer samples), staining was performed based on the method mentioned in the below...

15 January 2021 6,362 5 View

Why pathlines keep changing their patterns?

Hello, I am using ansys fluent to simulate a steady state phenomenon, even though the residual curves are absolutely flatten, pathlines keep changing their patterns over more iteration. I was...

12 November 2020 2,231 3 View

How to simulate fracture in the axle housing ?

Hey there, I want to simulate & analyze the fracture and fatigue (crack growth) in the rear axle housing of heavy tracks (Volvo company) in Abaqus. My question is which method is suitable for...

12 November 2020 3,377 3 View

Do you think Corona-virus (COVID-19) will lead to a new age of environmental behaviors?

It seem individual's attitude to environment are changing rather than last year due to corona virus issues and challenges. What do you think?

27 August 2020 6,394 17 View

How can I request a transimtted force between two nodes when I use tie constraint in ABAQUS?

Dear all, I have used a tie constraint in ABAQUS to attach two surfaces. the meshes of both surfaces are compatible so in front of every node of surface-1 is a node of surface-2. thus the force...

24 May 2020 9,890 3 View

To what extent, the number of people infected by Corona-virus (COVID-19) in a country can determine the level of disaster resiliency in that country?

I want to know if coronaviruses are considered as fixed variable entered in every country, can level of resiliency of that country be determined by the number of infected and dead people?...

22 March 2020 1,120 14 View

Can Corona-virus disease (COVID-19) be an opportunity to increase people sensitivity to the global crises such as climate change?

These days, people are discussing about pro-environmental and protective notions in their life all over the world. It seems this level of consideration should be navigated to a sustainable path....

19 March 2020 1,190 59 View

Why people perceive Corona-virus disease (COVID-19) more different than other global crisis such as climate change?

It is important for me that in what ways understanding of crisis leads to do some actions.

09 March 2020 7,731 38 View

Does it matter to melt a glass composition from room temperature?

In the case of making a glass, do we get different results in terms of structure, properties and etc. if we: 1- heat the mixed raw materials from room temperature to the desired temperature ,...

22 February 2020 2,867 3 View

Polymer composites suddenly solidifies?

I am making polymer composite by solvent mixing method. When I am trying to add filler solution in polymer solution it quickly get solidified. How to make them then uinform? It doesn't give time...

03 March 2021 7,540 4 View

What solvent can I used for Paal Knorr reaction between 6-amino hexanoic acid and 2.5 hexanedione?

I am try to make the Paal Knorr reaction between 2.5 hexnedione and 6-amino hexanoic acid, my problem is type of solvent to use, because 6-hexaminohexanoic acid is soluble in water but I am not...

02 March 2021 4,443 2 View

How to polymerize TEOS?

I want to polymerize TEOS on a surface. I know that NH4OH is a preferred catalyst and an alcoholic solvent should be used .But I can not find certain amounts of each material to use. Does any one...

02 March 2021 1,404 6 View

How can extract ciprofloxacin hydrochloride disolve in water er to organic solvent such as dichloromethan or any other solvent?

I need a procedure to extract the ciprofloxacin hydrochloride from aqueous solution by using dichloromethane in detail,. I thank you very much.

01 March 2021 4,306 1 View

How to separate water from glycerol solvent in a solvent recovery vacuum distillation column?

I am currently doing my third year design project. I have been assigned to design a glycerol recovery column in vinyl acetate monomer production. The process unit before the recovery column is an...

01 March 2021 9,525 4 View

Heat exchanger with liquid Nitrogen as coolant?

I want to cool Natural Gas from 195 Kelvin to 138 Klevin in a heat exchanger by using liquid nitrogen as the coolant medium. When entering the heat exchanger, the liquid nitrogen will have a...

01 March 2021 6,450 5 View

Is CD44 degraded in lysosome together with hyaluronan after CD44 mediated endocytosis of hyaluronic acid?

Also when RHAMM binds hyaluronic acid, they get internalized, will RHAMM also be degraded? Or both CD44 and RHAMM will be transferred back to the cell membrane? Asking for breast cancer cell line...

01 March 2021 8,169 2 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 make fractions of chloroform extract of plant, using seperating funnel?

28 February 2021 8,466 2 View

Why am i not getting solid after reacting APTES with salicylaldehyde?

The reaction of APTES with salicylaldehyde in ethanol leads to the formation of imine compound yellow solid which is mention in literature, but I am not getting yellow solid I don't know why? when...

28 February 2021 2,955 2 View