For example, space weather events, like typhoons, volcanic eruptions, earthquakes, etc, would cause ionospheric disturbances. But how to identify the specific disturbances when these events happen at the same time?
I am working on one optimization problem. the model with two states, the transition between the two states based on one threshold value (L = 5, which L< 5 -> Normal state, L== 5 ->...
11 February 2021 4,045 3 View
Selfconsistent noncollinear magnetic calculations can be done in VASP. I am wondering how VASP update the spin directions at each local site. For molecular dynamics, VASP search the next...
16 January 2021 1,398 3 View
The Poisson's ratio of soil is quite difficult for us geo-engineers to obtain. I came across a problem when I tried to determine the parameters in a FEM model. For the saturated clay in...
02 January 2021 8,971 3 View
I want to ligate a linear 1.7kbp plasmid with the EcoRI sites at two sides, but when I use the quick ligase kit from NEB to test the ligation efficiency it is hard to ligate it. Is there anyone...
08 December 2020 3,442 3 View
I have seen COVID19 test LoD ranging from 180 to 600000 NAAT Detectable Units/mL So a rapid antigen test with LoD of TCID50 1.13 x10^2 per mL and RT PCR TCID50 1x10^-2 per mL (600 NDU/mL) and a...
28 November 2020 1,238 3 View
Recently I have been involved in this problem: After expressed by adding IPTG, lysed with B-PER, and resolved with Buffer B (8M urea), incubate with Ni-NTA beads, everything looks fine. When I...
21 November 2020 7,416 3 View
Hello everybody! Recently, I have been using CEL technology to simulate the TNT explosion in the air, but I have encountered some difficulties. I don't know how to do discrete field material...
13 September 2020 7,012 2 View
Hi, I was doing the Abaqus explicit model for a plain woven fabric where two types of yarns(PU&PA) were set as the weft and one type of yarn(PA) was set as the warp. When the load applied to the...
10 September 2020 1,164 2 View
I am graduate from other major, and now working in computer science and technology, my roomates are mostly researching on image recognition. I want to switch to it and learn how to cooperate with...
21 August 2020 2,888 9 View
I differentiated THP-1 cells to macrophages using PMA(100ng/ml) and then used lentivirus to deliver shRNA to knockdown my target genes. Unfortunately, it was too difficult to be transfected...
16 August 2020 5,073 3 View
I am investigating thermospheric mass density profiles between 300-800 km altitude. I would like to compare the variability with other parameters, including temperature, electron content,...
01 March 2021 5,902 3 View
Hello ! In a work, I have to benchmark different algorithms to fill in missing values in time series. I insist on the fact that this is imputation and not forecasting. In my case, I have access...
24 February 2021 7,470 7 View
Hi Everyone, I am designing a pilot study using rodents to assess the effects of simulated space environments (radiation + altered gravity) on microbiome and immune system. I have limited...
24 February 2021 1,825 3 View
Are there any references to insects or animals that can cause damage or weathering to the rock or fossil material? books or paper that would be nice. Thank you very much!
24 February 2021 6,805 3 View
Hello All, I am looking for the historical wind data/map (mainly the year 2020-2021). I would like to look at the wind value and direction for the specifics locations within the US for the...
18 February 2021 9,543 4 View
I am trying to discretize a continuous time state space model using the following code s=tf('s'); G=1/(Iyy*(s^2)) Gs=ss(G) Gd=c2d(Gs,0.01,'zoh'); Now, when i use this discretized model 'Discrete...
30 January 2021 8,665 10 View
Dear all, I'd like to open here a sort of forum for understanding how the geodesists community is moving in view of the X-band SAR satellite constellation. The new constellation will offer new...
24 January 2021 6,248 0 View
The dataset is needed for forecasting wind power output using the weather information. I will be much obliged if anyone can share a relevant dataset or link.
04 January 2021 6,344 2 View
People long for green space Anxiety, worry Restriction of recreational activities What do people think of green spaces because of Covid 19 pandemic? With which modeling this issue can be studied
28 December 2020 5,243 3 View
Hi Kind helpers, For my industrial design thesis, I'm working on a concentrated solar energy (>CPV) construction, to be integrated in urban areas/buildings (glass roofs, with integrated...
28 December 2020 9,180 8 View