What is the effects of earthworm density on GHG emissions?

20 April 2020 1 849 Report

Why higher earthworm density increased CO2 but, decreased CH4 emissions during vermicomposting?

I guess it increases the penetration of O2 leading to CH4 aerobic oxidation and promoting aerobic organic matter respiration (increasing CO2).

More Bayu Dume's questions See All

Has anyone ever done research on employment for people with disabilities especially in public service?

I am currently doing my research on employment rate of people with disability in public service. I would be glad if someone has done or is doing the same topic.

19 March 2020 4,631 3 View

What is the best condition for analysis of methanol and formaldehyde with Gas Chromatography in a FID detector?

We are having a problem analyzing methanol and formaldehyde in an aqueous sample. We have a HP-Carbowax and Rtx-1 column. What is the best column for separation of methanol and formaldehyde? What...

22 April 2014 4,724 5 View

What do you expect from IR spectra of nh4-zsm-5?

I don't know what the difference is between IR spectra for na-zsm-5 and nh4-zsm-5. Any suggestions for what is the right characterization for knowing the exchange of Na ions to NH4 ions from...

30 March 2014 4,249 3 View

Which of these three methods for calculating the concentration of a metal sample is true?

I am kind of confused calculating the concentrations of some metal samples in my work. I digested a sample with acid then diluted it in a 250 ml volumetric flask. When I measured with AAS the...

27 March 2014 7,185 45 View

What weight to calculate the concentration of hexavalent chromium in the metal plating? Is it the weight of sample or weight of the plating?

I determined the concentration of hexavalent chromium with spectrophotometer uv - vis with diphenylcarbazide, after the extraction with base solution from metal plating. for calculating the amount...

26 August 2013 7,672 3 View

Can we determine speciation of chromium in small steel parts?

Is it possible to determine the concentration of hexavalent and trivalent chromium in solid sample such as small steel parts? using uv-vis, aas, or icp-ms, probably How to extract hexavalent and...

14 July 2013 1,117 4 View

What are the different structures, reactivity and activity of ephedrine and pseudoephedrine?

What are the different structure, reactivity and activity of ephedrine and pseudoephedrine?

06 November 2012 8,985 1 View

Role of Rhizosphere microorganisms in Nutrition of Plants

Rhizosphere microorganisms are the main drivers of turnover of organic C, N, and P and thus recycling of organically bound nutrients, for example by ammonification and nitrification, but may also...

01 January 1970 3,761 3 View

How to quantify carbon deposition on CuZnAl catalyst?

Dear All, I want to quantify carbon deposition on the surface of the CuZnAl catalyst. I have tried thermogravimetric analysis, but I've got weight gain as the active Cu- get oxidised. Does anyone...

01 March 2021 1,907 3 View

Why Trivalent chromium start precipitating above PH 5 ? Moreover discuss difference between adsorption of chromium and precipitation of chromium ?

I am a student of MS Environmental Engineering and started my research phase. I am working on metal removal ( chromium iii ) by using activated carbon prepared from the agricultural feedstock. So...

01 March 2021 5,475 2 View

How can I assign a velocity along one direction to CO2 molecules in a molecular dynamics simulation using GROMACS?

Dear all, I am trying to perform a MD simulation about the interaction between CO2 and a polymer. I create my model, solvate it and perform the NVT and NPT equilibration. Now I am not able to...

26 February 2021 10,014 3 View

CGA 300 Regulator for CO2 cylinder?

Has anyone ever tried to deliver CO2 with a CGA 300 regulator? I know that a CGA 320 regulator is standard for CO2. The issue is that I currently do not have any free CGA 320 regulators. I also...

25 February 2021 3,292 3 View

What are the methods used for CNT..?

Respected Professor's i hope you are doing well and happy. i need some information about carbon Nanotubes. before blending the CNT with the matrix the CNT has been introducing in some treatments....

24 February 2021 5,383 5 View

How to clean up TEM grid with plasma cleaner?

I need to clean the hydrocarbon contamination on the carbon substrate of TEM grid. However, I heard that substrate could be broken by the powerful plasma. My substrate is pure carbon, with ~3nm,...

23 February 2021 3,262 5 View

Have anyone checked before Cyclic voltammograms of intial ITO substrate and E-teck?

As a beginner in electrochemistry, I tried to obtain cyclic voltamograms of commercial anatase powder deposited on an ITO substrate or on Eteck. After several attempts, I noticed that my cyclic...

23 February 2021 3,175 3 View

What are some underexplored theories and concepts in Activated Carbon as A Water Filter?

Hi, me and my team mates are currently planning to pursue the topic of Activated Carbon from Coconut as a Water Filter. And we would like to ask for your suggestions and knowledge on what specific...

22 February 2021 6,569 3 View

How to do a surface treatment of uncoated TiO2 with polymer?

Basically, I would like to know how to treat or coat on the uncoated bare TiO2 (Ti-OH rich) surface with polymer which has anchoring groups in the polymer structure like trimethoxygroups. What is...

21 February 2021 4,657 6 View

What are some underexplored theories and concepts in Activated Carbon as A Water Filter?

Hi, me and my team mates are currently planning to pursue the topic of Activated Carbon from Coconut as a Water Filter. And we would like to ask for your suggestions and knowledge on what specific...

21 February 2021 7,561 4 View