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

Does the pressure(-600 mmHg) affects pH?

When I conducted the degassing experiment using decompression under anaerobic condition(and I used ferrous based chelating agent), the oxidized ferric were observerd. So, could you tell me the...

03 March 2021 4,892 5 View

What is the best way to keep an anaerobic chamber anoxic in the absence of hydrogen?

I'm a graduate student who works with an anaerobe, so I often work in an anaerobic chamber. I've been working on an assay that involves the steady-state of the quinone/ quinol pool. Anoxic...

03 March 2021 2,971 1 View

Is stone a sustainable material? Is it a sustainable approach to use natural stone waste in architecture?

I'm designing a zero-waste restaurant and considering using marble waste to make some tables and a bar countertop. My clients think it's not "sustainable enough" and I would like to have more...

01 March 2021 4,326 7 View

Uncertianiny in using dry or wet basis in mixing a sediment with fuel oil?

Hello I'm currently working on a topic related to studying the anaerobic biodegradation of TPH in marine sediments. In this work, sediment should be mixed with fuel oil to a concentration of 20 g...

24 February 2021 9,839 3 View

Advice on growing lactobacillus species in the lab?

Hello everyone, For part of my PhD project, I'm hoping to grow some lactobacillus species in the lab so that I can create standard curves for a qPCR quantification of a faecal sample. However, I...

24 February 2021 3,157 6 View

Is anyone working on a project focused on immigrants/newcomers working in the hospitality industry and how they have been impacted by COVID?

The on-going Covid-19 pandemic has had devastating economic effects on many industries. However, few have suffered to the same extent as full-service restaurants. Numerous studies have shown that...

24 February 2021 9,496 4 View

What is the optimum time and temperature of blanching and pre-frying potato for frozen fries?

I am helping a local home industry for developing frozen fries from their local farm. I want to know what is the optimum blanching and pre-frying temperature and time for processing. Please also...

23 February 2021 1,616 5 View

Aspen Plus Error: Unknown or undefined bead number?

Hello, in my Aspen Plus Simulation (see attachment) there are two heat exchangers. One HEX1 (oil+gas) ist fed by hot gas which ist coming out of a burner. The other HEX2 (gas+gas) shall work as a...

14 February 2021 8,096 2 View

How to measure pH in anaerobic digester?

I'm planning on doing research by using anaerobic digester with liquid substrate and want to see its pH changes periodically. Any suggestion on measuring the pH with maintaining its anaerobic...

09 February 2021 1,293 1 View

R/Python package for time-intensity or progressive profiling in sensory evaluation?

Hi I've been looking for a stat package for my sensory evaluation data (progressive profiled which is a multi-timepoint version of descriptive analysis). Is there any available one to...

08 February 2021 9,170 3 View