Could the "incoming radiation (net radiation)" values be negative?

Could the "incoming solar radiation" values be negative? What is the difference between "global solar radiation" and "incoming solar radiation"? Which one might be measured negative values?

21 February 2021 7,726 9 View

How long does it take for MCF-7 cancer cells to adhere to the microfluidic surface? Is 24 hours enough?

Hello everyone. We have cultured MCF-7 cancer cells in microfluidics several times and incubated them for 24 hours, but as the nanomaterial passed through the cells, the cells moved and no cell...

05 September 2020 7,292 3 View

Should Quartz powder or Sand water absorption be considered for UHPC mix design calculations? How is the water absorption of the powder calculated?

07 August 2020 1,592 1 View

What does scale.factor do exactly in LogNormalize function in R and why it is 10000 by default?

Hi, In LogNormalize function feature counts for each cell are divided by the total counts for that cell and multiplied by the scale.factor prior to log transformation. My question is what does...

26 July 2020 1,980 2 View

How to use all of CPU capacity for Analysis in Ansys mechanical Apdl?

Hello. Im using Ansys mechanical Apdl for timehistory analysis. I want to use all of Cpu's cores in this process. Help me please to do that with your guidance. #ansys #cpu_capacity

23 June 2020 7,600 3 View

How to simulate a porous media which is opaque to thermal radiation in Fluent Ansys?

Hello I am trying to model a porous zone in Fluent (the fluid in void is air) which is opaque to thermal radiation. If I set it as a porous zone with air as the media, Fluent treats it as a...

31 May 2020 7,450 2 View

Critical thinking assessments?

i'm trying to find a comprehensive explanation of most -if not all- of the instruments proposed to assess critical thinking skills and abilities. i will appreciate if you could introduce them or...

29 May 2020 5,717 5 View

How can I merge a slope raster to Land use-HSG shapefile in order to produce Curve Number in GIS?

Hi every body: I'm trying to calculate Run off Curve Number in GIS, first of all I need to merge my Land use-Hydrological soil group shapefile with Slope raster of my study area to produce CN...

19 April 2020 4,587 3 View

Does the presence of clones on the agar plate mean that the cloning has been done successfully?

I did cloning. it was like a traditional approach. Firstly, Restriction digestion was performed for both vector (8kb) and target gen (700bp), and also the vectors and target gene were run on the...

21 March 2020 9,618 4 View

What is the role of the fractal dimension(FD) in the analysis of a dynamical system such as Russler's?

According to the articles, we use fourier transform to compute power spetra density(psd) in spectral analysis , Sm = psd = lim {2|Ym|^2 /( N * delta) }, m=1,2,3,..., N / 2 psd is a function of...

03 March 2020 2,318 4 View

How the wettability of rock sample can be changed by ageing in pure hydrocarbon oils only?

I want to do wettability analysis of hydrocarbon oil (octane)/rock/surfactant solution system. but to do the analysis first I have to make rock surface oil-wet. Since hydrocarbon oil does not have...

27 February 2021 5,383 3 View

Cause of blisters in ALD layer at the edge of electrode?

I've encountered a defect during processing that I can't figure out, so I'm hoping I might find some ideas here. My mask design is a microelectrode array, with 60 microelectrodes with diameter...

19 January 2021 665 1 View

Methods for the seperation of vegetable oil and mineral oil?

Good evening, I am looking for methods according following topic: Vegetable oil (raps) contaminated with hydrocarbons (e.g. motor oil) shall be purified and separated from hydrocarbons. (Usage...

07 December 2020 7,077 7 View

What could be the best genetic markers for cuticle resistance in Mosquitoes ?

Insect cuticle plays control roles in reducing insecticide penetration into the insect's internal body. This cuticle possesses cuticular biomolecules such as proteins and hydrocarbons which maybe...

11 November 2020 6,333 1 View

Is it possible to calculate the significance difference of two values/ percentages? If so what statistical test would you use?

I have multiple datasets (from different sites/ samples) showing decreasing hydrocarbon (HC) concentration in soil over time (as the soil is treated). Each data set has different time intervals...

10 November 2020 3,297 7 View

Is there a correct way to adjust percentage recovery based on extraction efficiency when there is a repeatable matrix interference?

Hi, I am currently reviewing a student's work, and they were advised to correct some of their calculations for % recovery of the spiked standards based on the recovery of one of the mid range...

25 October 2020 2,578 3 View

Is it possible to use gas chromatography for the analysis of water contaminated by hydrocarbons?

I am using a gas chromatograph to determine the composition of the petroleum fraction, is there a possibility to do an analysis of water contaminated with alkane rich hydrocarbons?

23 October 2020 9,944 3 View

What is the impact of the covid-19 pandemic on global warming?

Because of extensive lock up during the pandemic in many countries of the world, notably Europe, USA, Brazil, China and India, there was reduced use of hydrocarbons, especially due to much reduced...

15 October 2020 8,539 23 View

Can we use 2, 6-dichlorophenol indophenol (DCPIP) method for analyzing crude oil degradation containing high sulfur content in the crude oil?

I was trying to find out whether my bacteria can degrade crude oil or not using DCPIP method that changes color after oxidizing hydrocarbons. But, I happen to order the crude oil containing 5%...

25 June 2020 9,801 2 View

How may I make sure ozone only reacts with various cellular lipids and prevent secondary reactions with other biomolecules(proteins, hydrocarbons) ?

I have a question. If I try to study the effects of ozone in animal cell cultures' antioxidant activity by triggering a reactions with the cell's lipid molecules, how can I make sure the ozone...

13 April 2020 8,649 3 View