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 are the LAB methodologies (procedures, equipment etc) for CO2 enrichment experiments to study crop responses?

I am doing a proposal for a research entitled 'GRAIN YIELD AND QUALITY RESPONSES OF WHEAT GENOTYPES UNDER CO2 ENRICHMENT AND EXTREME EVENTS' I will be using climate chamber and I would like to...

18 February 2021 6,494 4 View

What is the critical deficiency limit in soil for Mn in wheat crop ? in terms of DTPA extractable Mn?

critical range for Mn in soils is 2.5-4.5 ppm for all plants as an average, but what is the exact amount of DTPA extractable Mn in soil for wheat crop

04 February 2021 4,008 4 View

What is the best lighting design for conservation?

In the museums, the sensitive organic materials need to be displayed under 50 lux or less and aways from any UV or IR. LEDs still have a little amount of UV. What is the better option? Is it...

20 January 2021 5,965 3 View

How to remove the jacketing from the midsection of an optical fibre?

I have a HCS fibre with a 200 micron diameter. I want to remove the jacketing in sections along its length so I can replace the cladding underneath and create an evanescent field sensor. Obviously...

13 December 2020 3,068 2 View

How to prepare wheat grain sample for amino acid analysis through UV-HPLC ?

how to prepare wheat grain sample for amino acid analysis through UV-HPLC, and also amino acid standards for HPLC , I will be very very thank full.

10 December 2020 1,207 3 View

How to estimate the effect of nematodes on some varieties of wheat?what are the correlation possible to do ?

Hi , I carried out a test on the behavior of some varieties of durum wheat with respect to the CCNs, two successive years, in pots, and I inoculated with the same number of cysts (Pi), at the end...

05 December 2020 7,187 3 View

Is Coefficient of Variability (CV) positively correlated with root mean squared error (RMSE) in every case??

My data for fungicide treated replication shows higher RMSE and R-square but less CV compared to the untreated replication for a regression between vegetation indices and yield. How correct is it?...

23 November 2020 2,079 6 View

Learning to discriminate mycorrhizal from non mycorrhizal fungi for McGonigle method. Can anyone recommend a handbook or manual for this?

To assess root colonization by AMF, I want to use the grid-line intersect method (Giovannetti & Mosse, 1980) or even the magnified intersection method (McGonigle et al., 1990). I understand the...

23 November 2020 5,338 8 View

Can anyone help with SDS-PAGE problems?

i'm working on protein evaluation in flour of wheat and others legumes.....I'm using SDS-PAGE. However those days (about two weeks ago) i foudd nothing in the gels (no bands), i dont know what's...

11 November 2020 2,330 3 View

How to analysis drought in lab condition in wheat?

I wish to conduct the drought analysis study in wheat. anyone knows Procedure to conduct drought analysis, especially in wheat crop. Please share the information. I am looking to develop training...

09 November 2020 3,850 4 View