What pH condition required to coat APTES on silica coated Fe3O4?

It's a hydrolysis reaction, which may produce by either acid or base-catalyzed reaction. so can anybody help me with this, which condition is suitable for this reaction?

26 February 2021 1,760 8 View

What condition required for coating of Fe3O4@SiO2 by using APTES?

I tried coating Fe3O4@ SiO2 by using APTES in 5% water-ethanol but it is not coated. Kindly suggest a solution for it. Thanks

24 February 2021 5,992 4 View

How to Control Whiteflies in coconut leaves?

24 February 2021 1,005 1 View

Is it possible to design digital all pass filter for specific frequency range of the system?

I would like to know, Is it possible to design digital all pass filter for specific frequency range of the system to alter the phase of the system in that specific range of frequency? If yes how...

26 November 2020 1,402 5 View

In some CP patch design the polarization changes for LHCP to RHCP, What should be the possible reasons?

I have designed a dual print dual cp antenna, identical patch on both side of the substrate (placed side by side), on analysis, it is found it is showing LHCP in one band and RHCP in another band....

04 August 2020 5,136 3 View

In dual band antenna why the gain in upper band decreases?

In some printed antenna designs, generally, the gain in the upper band is larger than the lower band. However, in some cases (in my design having printed circle on both side of the substrate like...

03 August 2020 5,802 5 View

How to cap the maximum amount of reinforcement addition to make a polymer to be thermally conductive?

Addition of reinforcement with very high thermal conductivity (ex. graphene) would enhance the thermal conductive value of the developed polymer composites. How would one cap the maximum weight...

21 June 2020 9,303 11 View

We are facing rotten problem in kesar mango near mouth of it. What may be reason for that?

We are doing natural farming of kesar mango. This year we are facing rotten problem in mango near mouth of it. Last year it seems good. For this reason we are facing problem in selling if it....

02 June 2020 5,277 7 View

In COVID-19 modeling estimates for India by CDDEP, Johns Hopkins, and Princeton, what decideds peaking and decay?

COVID-19 modeling estimates for India have been presented by a team of researchers affiliated with CDDEP, Johns Hopkins, and Princeton. The results described in...

28 March 2020 1,623 2 View

Up to what temperatures can nCovid-19, novel corona virus survive?

The question does not require much explanation. Interested to know if there is some study on overall pattern of temperature range of permanent inactivity of various viruses and bacteria of all...

10 March 2020 8,749 44 View

What makes yellow color appear in phosphorus sample after autoclave digestion?

I was using autoclave for digesting water samples for Total phosphorus measurement with ascorbic acid method. The autoclave was set to perform 2 hours digestion and around 121 Celsius degrees. I...

25 January 2021 206 3 View

Which statistical analysis do I use to compare three data sets with different sample size?

I need to compare the soil phosphorus content in three different locations. I would run an Anova to compare the three data sets (1: 3 data points; 2: 17 data points & 3: 4 data points) to see...

16 January 2021 5,553 14 View

Seperate of organic and inorganic phosphorus in waste water?

Is it possible to separate organic and inorganic phosphorus in wastewater with a filter?

14 January 2021 952 3 View

Is there any relevant technique for mesocosm studies in marine environment using Nanoparticles?

I am planning to perform mesocosm study in simulated marine environment using Phosphorus based nanoparticles, i would be using marine micro-organisms in it. kindly suggest me some effective...

07 January 2021 5,877 3 View

How is phosphorus liberated in calcareous soil..?

Phosphorous is one of the elements that plants need, but it is fixed in calcareous soils

05 January 2021 2,920 6 View

How does the nanoparticle concentration affect the Hydrodynamic size in Millique water ?

I am doing a time based study and at the initial hours , i am getting considerable high values of hydrodynamic size. The concentration is very low in the range of 3-10ppm and the nanoparticles are...

30 December 2020 5,971 3 View

I'm trying to prepare RhxP nanoparticles decorated on phosphorus-doped nitride carbon, but after pyrolysis i m getting only few mg product why?

trying to prepare RhxP nanoparticles

10 November 2020 9,875 3 View

How to determine the P ratio?

Hello dear all of you researchers, How can I calculate or determine the exact 'P' content of the coating of electroless Ni-P deposition on the materials? I look forward to hearing from you and...

08 October 2020 6,245 3 View

Estimation error for values "between 0 and 1" ?

We know that the estimation error (in percent) can be calculated with EEx = a*sqrt(var(x))*100/x, where EEx is the estimation error, a is a constant, var(x) is the variance (came from...

06 September 2020 1,659 4 View

What are the effects of phosphorus deficiency on dehydrogenase activity in soil bacteria and fungi?

I suspect that under phosphorus deficiency the electron transport chain in the plasmamembrane and mitochondria of soil bacteria and AM fungi, respectively, is disrupted as a result of lower ATP...

30 August 2020 4,659 3 View