| --- Day changed Sat Jun 20 2009 | ||
| genehacker | well I was just thinking about automatically designing laser cutters the other day | 00:02 |
|---|---|---|
| ybit | http://nathan.instras.com/projects/spin-coater/index.html :: spin coater for ~$70 | 00:03 |
| ybit | "Spin coater based on brushless dc motor of hard disk drivers" | 00:05 |
| genehacker | google maskless lithography dlp projector | 00:07 |
| genehacker | you will find what you need | 00:07 |
| ybit | hmm can't ssh into serverftp to upload | 00:07 |
| ybit | genehacker: what i need for?... | 00:08 |
| genehacker | it show you how to make a simple spin coater using a blender | 00:08 |
| genehacker | and also a machine for exposing photoresist | 00:09 |
| ybit | We have developed a novel programmable, low cost, spin coater to be used for applications where flat substrates are coated with an uniform | 00:09 |
| ybit | thin layer of a desirable material. The equipment is built with dc brushless motor present in most of the hard disk drivers (HDDs). The system | 00:09 |
| ybit | offers manual control, wide speed range (from 0 to 10,000 rpm), spin speed stability and compact size. The paper also describes the use of such | 00:09 |
| ybit | equipment for the fabrication of thin poly(o-methoxyaniline) (POMA) films, which are of particular interest for design organic electronic devices, | 00:09 |
| ybit | such as diodes, transistor, sensors and displays. | 00:09 |
| ybit | interesting | 00:09 |
| ybit | genehacker: are you talking about your post on diybio? | 00:10 |
| genehacker | it is related | 00:10 |
| ybit | hough they had trouble achieving uniform illumination which | 00:12 |
| ybit | means they had to adjust the brightness with an image overlay and | 00:12 |
| ybit | ended up only being able to use only 95% of the image after the | 00:12 |
| ybit | overlay was applied. | 00:12 |
| ybit | that 95 needs to be 100.. | 00:12 |
| ybit | for dna synthesis, you are correct, it's not a problem | 00:13 |
| genehacker | http://www6.in.tum.de/Main/StudentProjectsFullBodyTracking | 00:14 |
| genehacker | check this out | 00:14 |
| genehacker | not related | 00:14 |
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| kanzure | ybit: can you give me an index of the interesting papers that you have found in the last few days please? | 09:13 |
| kanzure | or interesting books / other downloadable item thingies | 09:13 |
| kanzure | elsevier is down for maintenance. at 9 in the morning on a Saturday? wtf. this is prime time! | 09:27 |
| ybit | i get a connection refused when i attempt to upload papers to the server | 10:38 |
| ybit | kanzure^ | 10:38 |
| ybit | s/upload papers to the server/tunnel into the server with ssh | 10:42 |
| ybit | you are using port 22, right? | 10:42 |
| ybit | there is one thing that i will be looking for when i get back from work in about 7 hours: a low-cost design of an rie chamber | 10:43 |
| kanzure | what is a rie chamber? | 10:46 |
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| kanzure | ybit: have you tried ssh, scp and sftp? | 10:46 |
| kanzure | maybe there's some weird configuration thingy that I am forgetting | 10:46 |
| kanzure | usually I just have to run adduser and that's that. | 10:46 |
| kanzure | you're not on some blacklist for university sys-admins or something, are you? | 10:47 |
| ybit | sciencedirect is down too today :( | 10:49 |
| ybit | heh | 10:49 |
| ybit | ssh: connect to host adl.serverftp.org port 22: Connection refused | 10:51 |
| ybit | i must be ;) | 10:51 |
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| ybit | it probably has to do with no keys set | 11:00 |
| ybit | or not, i don't know. will have to get back to this later this afternoon | 11:01 |
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| kanzure | ybit: firewall issues? | 13:18 |
| kanzure | for some reason I was reading through http://pypi.python.org/pypi?%3Aaction=index this morning | 13:18 |
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| fenn | ybit: serveftp, not serverftp | 13:43 |
| kanzure | http://science.slashdot.org/story/09/06/20/163200/DIY-Biologists-To-Open-Source-Research | 13:50 |
| genehacker | kanzure did you see my link about the IRL ironman worktable? | 13:50 |
| kanzure | no | 13:55 |
| genehacker | ok | 13:56 |
| kanzure | did you send it | 13:56 |
| genehacker | >http://www6.in.tum.de/Main/StudentProjectsFullBodyTracking | 14:08 |
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| kanzure | heh all of my combinations() problems in python have been because I haven't been using pygraph.digraph() | 15:16 |
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| kanzure | :set paste and :set nopaste | 15:29 |
| kanzure | so, in a python unittest module thingy, is it one method tested per method within the test class? or what's the deal on this? | 15:42 |
| kanzure | er, standard style deal I mean | 15:42 |
| kanzure | http://pyyaml.org/wiki/PyYAMLDocumentation | 15:44 |
| kanzure | fenn: can you look at line 124 of http://192.168.1.108/combinations.py | 16:05 |
| kanzure | if you run it, you will see that the len(g.edges()) changes in the print statements | 16:05 |
| kanzure | even though I am clearly not operating on g ever | 16:05 |
| kanzure | (am using copy.copy) | 16:05 |
| kanzure | is copy.copy not a "deep" copy? | 16:08 |
| kanzure | aha. "Shallow copy operation on arbitrary python objects" | 16:08 |
| kanzure | copy.deepcopy() is what I want | 16:08 |
| fenn | you are 192.168.1.100 | 16:11 |
| kanzure | bah | 16:15 |
| kanzure | where do I kick this? /etc/networks ? | 16:15 |
| fenn | /etc/network/interfaces | 16:27 |
| fenn | allow-hotplug eth0 | 16:28 |
| fenn | auto eth0 | 16:28 |
| fenn | iface eth0 inet static address 192.168.1.108 | 16:28 |
| fenn | er, that should be a new line | 16:28 |
| fenn | address 192.168.1.108 | 16:28 |
| fenn | netmask 255.255.255.0 | 16:28 |
| fenn | network 192.168.1.0 | 16:28 |
| fenn | gateway 192.168.1.1 | 16:28 |
| kanzure | is "static" the end of the line there? | 16:29 |
| fenn | yes | 16:29 |
| kanzure | should I comment out any "iface eth0 inet dhcp" lines? | 16:30 |
| fenn | yes | 16:33 |
| kanzure | it's kind of stupid that the next version of haskell is called haskell' | 16:49 |
| kanzure | as if that's not going to be a nightmare to google | 16:49 |
| kanzure | oops. combinations.py takes forever, and on top of that, it's finding all cutsets, not just all cutsets that divide the graph into only two subsets. | 17:03 |
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| kanzure | if [ -n "$BASH_ENV" ]; then . "$BASH_ENV"; fi | 17:17 |
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| kanzure | I have something in the form of ((a,b),) and I need it in the form of [a,b] | 18:27 |
| kanzure | in python | 18:27 |
| digitaltao | uh ;x output ? | 18:29 |
| kanzure | list(((a,b),)[0]) | 18:32 |
| kanzure | yay | 18:32 |
| kanzure | fenn: http://192.168.1.100/combinations.py | 18:34 |
| kanzure | it passes :) | 18:34 |
| kanzure | sudo apt-get install python-pygraphviz | 19:02 |
| kanzure | or is it libgv-python ? | 19:02 |
| kanzure | python-pydot | 19:04 |
| kanzure | http://dkbza.org/pydot.html | 19:05 |
| kanzure | the screenshots on that page are interesting | 19:05 |
| kanzure | for tmPython and TeXmacs | 19:06 |
| kanzure | http://dkbza.org/images/tm_python3.jpg | 19:06 |
| kanzure | todo: make unit tests for find-all-cycles.py as well | 19:15 |
| kanzure | wtf is 'dircolors' | 19:19 |
| kanzure | ok. this is starting to look better. | 19:36 |
| ybit | 5~http://memscyclopedia.org/su8.html | 19:58 |
| ybit | http://memscyclopedia.org/su8.html | 19:59 |
| katsmeow-afk | you think i can apply su8 onto steel, cure it, and call it "paint" ? | 20:10 |
| katsmeow-afk | i am thinking it wold have very low porosity | 20:11 |
| ybit | the best schematics i can find for an rei chamber|reactor are typically in patents, e.g.: http://www.google.com/patents/download/Magnetic_field_enhanced_plasma_etch_reac.pdf?id=054xAAAAEBAJ&output=pdf&sig=ACfU3U0IXoL76jufrLqPdrQhY5cQ91zAcw | 20:17 |
| ybit | rie* | 20:17 |
| ybit | http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=RSINAK000075000012005277000001&idtype=cvips&gifs=yes :: "Microwave-induced plasma reactor based on a domestic microwave oven for bulk solid state chemistry" | 20:22 |
| ybit | sciencedirect has been down all day :\ | 20:31 |
| kanzure | incompetent clods | 20:31 |
| ybit | any of you want to grab the paper listed above? | 20:32 |
| kanzure | eventually :) | 20:33 |
| ybit | heh | 20:33 |
| ybit | i uploaded some papers to my account the server, some need to be renamed before being moved to the papers dir | 20:33 |
| katsmeow-afk | what's the thickest i can get a uv cured crosslinked photoresist that isn't in any way cured involving outgassing?, and what chemical would that be? | 20:34 |
| kanzure | outgassing? | 20:34 |
| ybit | will do it later when i am online using konqueror | 20:34 |
| ybit | (much easier that way) | 20:35 |
| katsmeow-afk | outgassing = solvents evaporating or being squeezed out | 20:35 |
| ybit | i don't know katsmeow-afk | 20:35 |
| kanzure | I always thought that uv photocured crosslinked polymers do not require outgassing | 20:37 |
| kanzure | but maybe I'm wrong? | 20:37 |
| katsmeow-afk | i agree, i think so too, but i stated it to be sure i got what i wanted | 20:39 |
| katsmeow-afk | i thought 2-part epoxied don't cure by outgassing , but seems they are almost as porus as latex, which ougassed ferociously | 20:39 |
| ybit | ww.york.ac.uk/res/redgroup/redsite/files/no25.pdf :: the microwave paper | 20:45 |
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| kanzure | unit test for find-all-cycles completed. | 21:58 |
| kanzure | um I'm still not sure how to do this | 22:22 |
| kanzure | so, at all nodes on a cycle have their through variables sum up to the same value? or, what? | 22:24 |
| xp_prg | what are you applying this to kanzure? | 22:24 |
| kanzure | " The directed sum of the electrical potential differences around any closed circuit must be zero. " | 22:26 |
| kanzure | xp_prg: extracting state equations from skdb packages | 22:26 |
| kanzure | so around any cycle, across variables sum to zero | 22:27 |
| kanzure | at a circuit, the through variables equal zero | 22:27 |
| kanzure | or something.. | 22:27 |
| kanzure | "To allow http://www.google.com/url?sa=t&source=web&ct=res&cd=3&url=http%3A%2F%2Fwww.springerlink.com%2Findex%2FP64768W654438463.pdf&ei=Qak9StizN4-qtgfJq7QI&usg=AFQjCNGC6Ar5BNVxqulrh3wrgs9eN9EKgg&sig2=6HoypNAy0ECfinI-1_FVzw to be used in a starting point URL, your EZproxy administrator must first authorize the hostname of this URL in the config.txt file." | 22:32 |
| xp_prg | use nodal analysis with matrices | 22:49 |
| ybit | where's the electronic supplementary info from the maskless photolithography with LEDs paper? | 22:50 |
| kanzure | xp_prg: why use matrices | 23:05 |
| kanzure | my graph-based methods work just fine | 23:05 |
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| kanzure | "he voltage law says that the sum of voltages around every closed loop in the circuit must equal zero. A closed loop has the obvious definition: Starting at a node, trace a path through the circuit that returns you to the origin node. KVL expresses the fact that electric fields are conservative: The total work performed in moving a test charge around a closed path is zero. | 23:44 |
| kanzure | " | 23:44 |
| kanzure | DeCarlo, RA, Lin PM, Linear Circuit Analysis: Time Domain, Phasor and Laplace Transform Approaches, Oxford University Press, 2001. Node Voltage, Loop Current, and Modified Nodal Analysis. re: supernodes | 23:48 |
| kanzure | http://en.wikibooks.org/wiki/Circuit_Theory/Analysis_Methods | 23:51 |
| ybit | anyone aware of simulation software for in-vivo MEAs, kanzure? | 23:53 |
| kanzure | which part do you want to simulate? | 23:55 |
| kanzure | the microcontroller doohickey? | 23:55 |
| kanzure | http://adl.serveftp.org/dokuwiki/nodal_analysis | 23:55 |
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