Archive for the 'attenuation' Category

How do I check S/N levels and attenuation on my modem?

I am having some problems with my internet connection, and have been advised to check my signal to noise and attenuation levels for the connection to my modem. Does anybody know how I can do this? Thanks. First you need to access your modem/router. Open start menu, go to run. type in cmd, then hit [...]

How do you calculate sound attenuation in an exhaust system?

There are many variables which will affect the sound. including fuel used, compression ratio, cam timing, manifold material and thickness, number of silencers, material & construction of silencers, exhaust diameter, length of tailpipe. Unless you are a major car designer with millions of pounds to spend then trail and error is probably a better way [...]

CFD attenuation of vortexshedding @ Re=60

This simulation shows how vortex shedding can be stabilized using jet actuation at +/-120 degrees from the stagnation point. The Y velocity @x=2.75*D was used as feedback signal. Duration : 0:0:8

What is an attenuation artifact mean on a cardiac stress test?

Can occur due to breast tissue in females

Attenuation in the trp operon, part 1

Duration : 0:4:47

Where will I find the downstream attenuation and noise margin values?

I need the values to find the fastest broadband speed on my phone line. It depends on the router you’re using. Usually you’d go into your internet browser and in the address bar type 192.168.0.1 or 192.168.1.1 (although there are others). You’ll probably be asked for a username and password. Assuming you haven’t changed it [...]

D.S.G Attenuation Pond Design PBL

U.L Civil Engineering Year 2 Wt4014 PBL Group: D.S.G Members: William Buckley, John MacKenna, Tomas O’ Donoghue, Liam Fleming & James Culhane. Duration : 0:5:29

Apollo Landings with Heat Shield Impact Attenuation Systems

1965 NASA Langley Research Center test film showing a model Apollo re-entry capsule being tested for re-entry landing. The model had a combination heat shield/impact absorber installed. The tests were conducted in the Impacting Structures Facility, now known as the Vortex Research Facility. http://gis.larc.nasa.gov/documents/720B/historic/WebApp.html Duration : 0:10:0

How many dB of attenuation translates into 70% of voltage being lost to attenuation?

I’m pretty sure I’m supposed to be using the equation dB= 20 * log10 (P1/P2) but I am not sure how to figure out what the question is asking. Correct. dB = 20 * log10(V1/V2) for voltage dB = 20 * log10(.7) -3.098 dB dB = 10 * log10(P1/P2) for power (note a p not [...]

Make your own attenuation cable!! EclipseWebJS,this is for U

I made this to help EclipseWebJS but anyone who wants to make one can feel free to use this video. Duration : 0:7:7