Until it reaches high enough for an orbitally based rigid pipe takes over the feed? Big weight at and above geostationary orbit. Build in LEO then remove debris and lower hard pipe as orbit gets higher.
Obviously it would have to have some sort of repulsion system to steer satellites around it while capturing space junk.
Hi, could anyone recommend a plasmid and/or protocol for reporter gene assay in S. cerevisiae? I want to assess the effect of growth conditions on a transcription factor, so I want to clone it`s...
01 March 2021 210 1 View
Trying to gather insight from an unresolved discussion with a colleague here, and either the available literature surrounding this topic and/or my keywords in search of are lacking. Context:...
21 February 2021 6,389 3 View
Dear colleagues, I was just wondering if you can suggest a good method to get a rough estimation to the concentration of O2 and H2O inside the glove box as unfortunately, our glove box doesn't...
17 February 2021 1,012 3 View
Hi! I am looking for some specific information in regards to the minimum amount of UV intensity required to begin the photo degradation process in polymers. I understand each polymer is...
15 February 2021 7,703 4 View
This large international conference will be held online this year due to COVID. I am submitting a paper to the Technology Enhanced Language Learning track (8). It is about a topic I have never...
15 February 2021 1,975 15 View
Hello, I'm currently running a PCA on a polytomous data set (5 point Likert). I want to create a discrimination index to narrow down my items before running the PCA. After looking around, I'm...
13 February 2021 3,517 2 View
This is a follow-up on an earlier question regarding mechanistics of vaccines: why current vaccines don't block transmission. In summary, they don't engage mucosal immune cells to produce IgA....
08 February 2021 8,321 3 View
Dear all, High beurocracy hihly complicate field ecolocial and evolutionary research nowadays. Nearly all tropical countries (maybe all?) requires research permit for performitng research and in...
04 February 2021 3,672 6 View
I want to perform the synthesis of a hydrogel and I want to know if I can polymerize NIPPAm with PEGmethacrylate or only with PEGacrylate?
02 February 2021 2,106 6 View
01 February 2021 4,616 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
I have a pipe with 10 mm in Diameter and 2 bar pressure, the fluid velocity is 200 m/s, the fluid is air. is there a way to reduce velocity without affecting the pressure value?
25 February 2021 7,187 3 View
Hello everyone, hope all is good. I want to analyse multi-phase fluid flow through pipe, which software is best to do so ?
21 February 2021 4,230 8 View
Hello, I have read in a few publications that to extract total DNA from sputum samples, both bead beating and enzymes are used to disrupt the cells. Bead beating is supposed to be efficient in...
18 February 2021 3,360 2 View
I am designing a riser pipe for use in ocean down to depths of 5km. Polymetallic nodules are pumped from the seabed to the surface. For my FEA and CFD analyses I need to input a maximum pressure...
06 February 2021 2,803 3 View
I want to simulate satellite attitude control with a quaternion attitude representation. thrusters and reaction wheels are the main AOCS controllers. is it Ok to omit orbit dynamics (orbit...
31 January 2021 5,094 2 View
Hello dear online comunity, i am new to CFD and we are currently involved in a project work for our masters degree. Since the problem we decided to simulate is quite complex, we cannot rely on the...
29 January 2021 2,200 3 View
I would like to plating Ni/Au on the selected area. Can anyone give me a suggestion? It is a bit like to make golden finger on PCB board. Instead with the PCB board, I use polyimide as my...
28 January 2021 8,330 1 View
The 1st image shows the moment when I import my design(IGES) into the Mechanical APDL. The 2nd image occurs when I wanted to Operate>Boolean>Divide Volume By Area. The design is a regular...
28 January 2021 2,962 3 View
Hello, I'm doing a research about if psychometric tools can be translated into video games. My main major is video games. So I'm an absolute newbie with psychometric tools. I have chosen PVQ tool...
22 January 2021 5,992 2 View