Office will then consider all prior art received when deciding
to grant or to deny a patent.
Joe Gwinn
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and follow
dry air, so all leaks
are outward and the dew point is never reached inside the box.
Joe Gwinn
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At 3:24 PM + 2/24/12, time-nuts-requ...@febo.com wrote:
Date: Fri, 24 Feb 2012 14:42:36 +0100
From: b...@lysator.liu.se
To: Discussion of precise time and frequency measurement
time-nuts@febo.com
Subject: Re: [time-nuts] Neutrinos not so fast? (defective connector)
Bj?rn,
[snip]
urethane foams available from building supply houses.
Joe Gwinn
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and follow the instructions there.
bead sheet. I will
have to check out foam board next time. Both would be more difficult
to cut without a hot wire knife.
Balsa wood cuts very easily with a sharp knife, glues very well with
carpenters' glue, and will not degrade over time.
Joe Gwinn
-coax.com/pages/technicalinfo/applications/27.asp
Joe Gwinn
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the output of a 78xx or the like
regulator.
Joe Gwinn
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and follow the instructions there.
to establish a paper
link between CERN and Gran Sasso which would be independent of the current
link.
Why do all that, versus just running an amplified fiber between CERN
and Gran Sasso? Two links are likely to be twice the trouble and
error.
Joe Gwinn
assumes *very* subtle, given that none of the ~100 coauthors
could find it, and it won't have been for lack of trying. Now the
world physics community is on the case, so it may not take all that
long.
Joe Gwinn
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more or less sinusoidally, this being the residue after
the average clock drift is removed.
Joe Gwinn.
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and follow
this along, by increasing the capacitance.
Joe Gwinn
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and follow the instructions there.
assembly integrated with the
heatsink plate is most likely a heat pipe of some kind, as that's
what Thermacore makes. It's a model 2644, from the nameplate, but no
joy at the Thermacore.com website.
Joe Gwinn
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%3D4294915469
Copper-water-nitrogen VCHPs seem simple enough for fabrication in a
home shop, although long-term retention of nitrogen (or any such gas)
will require hard brazed or welded hermetic seams and seals (versus
soft solder and ball valves).
Joe Gwinn
is in the book I
left at work. It was pretty good, especially considering that the
heatsink system is wholly passive and electronics-free.
Joe
Bob
On Jan 23, 2010, at 1:33 PM, Joe Gwinn wrote:
Back in December 2009 I proposed (in Re: [time-nuts] Cheap
Rubidium (heatpipe cooling for)) use
My comments are in-line, below
On Fri, Dec 25, 2009 at 4:38 PM, Joe Gwinn joegw...@comcast.net wrote:
At 12:45 AM + 12/25/09, time-nuts-requ...@febo.com wrote:
Date: Thu, 24 Dec 2009 17:14:38 -0700
From: Robert Darlington rdarling...@gmail.com
Subject: Re: [time-nuts] Cheap Rubidium
approach to
carry away the heat. It's got a pump to move the water, but the rest of it
is fairly simple.
Bob
On Dec 24, 2009, at 2:49 PM, Joe Gwinn wrote:
A dodge occurs to me - a homebrew heat pipe:
http://en.wikipedia.org/wiki/Heat_pipe.
Make the cold plate of copper, to which
At 10:06 PM + 12/23/09, time-nuts-requ...@febo.com wrote:
Date: Thu, 24 Dec 2009 09:46:13 +1300
From: Bruce Griffiths bruce.griffi...@xtra.co.nz
Subject: Re: [time-nuts] Cheap Rubidium
To: Discussion of precise time and frequency measurement
time-nuts@febo.com
Joe Gwinn wrote
be adapted.
Anyway, a heat pipe system will stabilize the coldplate temperature
fairly accurately despite variations in thermal load, has no moving
or electrical parts, and may be sufficient by itself. If not
sufficient, it can be used as the outer stage in a two-stage ovening
scheme.
Joe
temperature by actively controlling
the speed of the fan (or pump) driving air (or oil) through the heat
sink, as has been suggested.
Joe Gwinn
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not
drift across the screen.
Joe Gwinn
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Message-ID: 4b251964.5040...@rubidium.dyndns.org
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Joe Gwinn wrote:
At 1:44 AM + 12/13/09, time-nuts-requ...@febo.com wrote:
Date: Sat, 12 Dec 2009 17:29:17 -0800
From: Colby Gutierrez-Kraybill co...@astro.berkeley.edu
Subject: [time
the math to estimate performance compared
to the traditional ZCD approach, but the complex multiply and average
approach should be quite robust against noise, and is easily
implemented in a DSP or FPGA.
Joe Gwinn
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than US $10. Here's one:
http://www.dadsrockshop.com/blades.html
The traditional approach is to hold the oddly shaped object to be cut
in pitch. By lapidary standards, ferrites are pretty soft, and so
should cut quite quickly.
Joe Gwinn
___
time
Does anybody know of any PCI cards that will receive IRIG-B time
signals and come with an I/O driver for AIX (IBM's flavor of UNIX)?
Industrial-grade commercial products are preferred.
Thanks,
Joe Gwinn
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Magnus,
At 10:31 AM + 1/10/09, time-nuts-requ...@febo.com wrote:
Message: 5
Date: Sat, 10 Jan 2009 11:06:39 +0100
From: Magnus Danielson mag...@rubidium.dyndns.org
Subject: Re: [time-nuts] Standards sought for immunity of shielded
cable links to power-frequency ground loops
To:
Magnus,
At 6:02 PM + 1/10/09, time-nuts-requ...@febo.com wrote:
Message: 4
Date: Sat, 10 Jan 2009 19:02:09 +0100
From: Magnus Danielson mag...@rubidium.dyndns.org
Subject: Re: [time-nuts] Standards sought for immunity of shielded
cable links to power-frequency ground loops
To:
At 4:59 AM + 1/7/09, time-nuts-requ...@febo.com wrote:
Message: 6
Date: Tue, 06 Jan 2009 21:54:41 -0600
From: Brian Kirby kirb...@bellsouth.net
Subject: Re: [time-nuts] Standards sought for immunity of shielded
cable links to power-frequency ground loops
To: Discussion of precise time
Steve,
At 8:39 AM + 1/2/09, time-nuts-requ...@febo.com wrote:
Message: 6
Date: Fri, 2 Jan 2009 14:00:56 +1300
From: Steve Rooke sar10...@gmail.com
Subject: Re: [time-nuts] Leap seconds and POSIX
To: Discussion of precise time and frequency measurement
time-nuts@febo.com
2009/1/2 Joe
Message-ID: 495dd1ef.7030...@rubidium.dyndns.org
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Joe Gwinn skrev:
Having worked in the POSIX committee for many years, I can shed some
light on how POSIX handles leap seconds:
In short, POSIX adamantly ignores leap seconds. All
Magnus,
At 12:00 PM + 1/2/09, time-nuts-requ...@febo.com wrote:
Message: 1
Date: Fri, 02 Jan 2009 09:45:23 +0100
From: Magnus Danielson mag...@rubidium.dyndns.org
Subject: Re: [time-nuts] Leap seconds and POSIX
To: Discussion of precise time and frequency measurement
time-nuts@febo.com
Having worked in the POSIX committee for many years, I can shed some
light on how POSIX handles leap seconds:
In short, POSIX adamantly ignores leap seconds. All days in POSIX
have the same length, 86,400 seconds.
This omission is not by accident, instead having been violently
debated at
@bsdimp.com
Content-Type: Text/Plain; charset=us-ascii
In message: p06240822c582a02c4...@[192.168.1.212]
Joe Gwinn joegw...@comcast.net writes:
: Having worked in the POSIX committee for many years, I can shed some
: light on how POSIX handles leap seconds:
:
: In short, POSIX adamantly
Pete,
At 4:58 AM + 12/27/08, time-nuts-requ...@febo.com wrote:
Message: 2
Date: Fri, 26 Dec 2008 19:10:47 -0700
From: Pete peteraw...@earthlink.net
Subject: Re: [time-nuts] Sub Pico Second Phase logger
To: Discussion of precise time and frequency measurement
time-nuts@febo.com
Joe,
Bruce,
At 10:16 PM + 12/23/08, time-nuts-requ...@febo.com wrote:
Message: 1
Date: Wed, 24 Dec 2008 08:47:21 +1300
From: Bruce Griffiths bruce.griffi...@xtra.co.nz
Subject: Re: [time-nuts] Sub Pico Second Phase logger
To: Discussion of precise time and frequency measurement
At 5:05 PM + 12/23/08, time-nuts-requ...@febo.com wrote:
Date: Tue, 23 Dec 2008 16:10:29 +
From: Mark Sims hol...@hotmail.com
Subject: [time-nuts] Sub Pico Second Phase logger
To: time-nuts@febo.com
Message-ID: blu125-w29c8667e5fae2a1ee11f5bce...@phx.gbl
Content-Type: text/plain;
At 5:05 PM + 12/23/08, time-nuts-requ...@febo.com wrote:
Date: Tue, 23 Dec 2008 11:40:51 -0500
From: John Ackermann N8UR j...@febo.com
Subject: [time-nuts] New topics (was Re: He is a Time-Nut
Troublemaker)
To: Discussion of precise time and frequency measurement
Bruce,
At 11:43 PM + 12/22/08, time-nuts-requ...@febo.com wrote:
Date: Tue, 23 Dec 2008 12:01:40 +1300
From: Bruce Griffiths bruce.griffi...@xtra.co.nz
Subject: Re: [time-nuts] Sub Pico Second Phase logger
To: Discussion of precise time and frequency measurement
time-nuts@febo.com
Ulrich,
At 7:57 AM + 12/22/08, time-nuts-requ...@febo.com wrote:
Message: 7
Date: Mon, 22 Dec 2008 08:56:55 +0100
From: Ulrich Bangert df...@ulrich-bangert.de
Subject: Re: [time-nuts] Sub Pico Second Phase logger
To: 'Discussion of precise time and frequency measurement'
Joe
Joe Gwinn wrote:
Bruce,
[snip]
Some claim to be able to sync to an SPDIF input but the resultant jitter
may be large.
Why large jitter? Bad implementation?
I'm just suspicious, although I did see some data somewhere that seemed
Joe Gwinn wrote:
At 2:01 AM + 12/22/08, time-nuts-requ...@febo.com wrote:
Message: 4
Date: Mon, 22 Dec 2008 11:19:06 +1300
From: Bruce Griffiths bruce.griffi...@xtra.co.nz
Subject: Re: [time-nuts] Sub Pico Second Phase logger
To: Discussion of precise time and frequency
@febo.com
Joe
Joe Gwinn wrote:
Bruce,
At 3:54 AM + 12/19/08, time-nuts-requ...@febo.com wrote:
Message: 5
Date: Fri, 19 Dec 2008 16:51:55 +1300
From: Bruce Griffiths bruce.griffi...@xtra.co.nz
Subject: Re: [time-nuts] Sub Pico Second Phase logger
To: Discussion of precise time
@febo.com
Joe
Joe Gwinn wrote:
At 11:48 PM + 12/18/08, time-nuts-requ...@febo.com wrote:
Message: 5
Date: Fri, 19 Dec 2008 12:48:27 +1300
From: Bruce Griffiths bruce.griffi...@xtra.co.nz
Subject: Re: [time-nuts] Sub Pico Second Phase logger
To: Discussion of precise time
@febo.com
Joe
Joe Gwinn wrote:
This is from home. I'll not be at work until next year.
At 11:48 PM + 12/18/08, time-nuts-requ...@febo.com wrote:
Message: 4
Date: Fri, 19 Dec 2008 12:17:33 +1300
From: Bruce Griffiths bruce.griffi...@xtra.co.nz
Subject: Re: [time-nuts] Sub Pico
This is from home. I'll not be at work until next year.
At 11:48 PM + 12/18/08, time-nuts-requ...@febo.com wrote:
Message: 4
Date: Fri, 19 Dec 2008 12:17:33 +1300
From: Bruce Griffiths bruce.griffi...@xtra.co.nz
Subject: Re: [time-nuts] Sub Pico Second Phase logger
To: Discussion of precise
At 11:48 PM + 12/18/08, time-nuts-requ...@febo.com wrote:
Message: 5
Date: Fri, 19 Dec 2008 12:48:27 +1300
From: Bruce Griffiths bruce.griffi...@xtra.co.nz
Subject: Re: [time-nuts] Sub Pico Second Phase logger
To: Discussion of precise time and frequency measurement
time-nuts@febo.com
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