Eric Yung's Weblog

ultrasurf – free proxy to America

ericyung — Tue, 05 Jul 2011 09:31:27 +0000

Ultrasurf is a product of Ultrareach Internet Corporation. Originally created to help internet users in China find security and freedom online, Ultrasurf has now become the world’s most popular pro-privacy, anti-censorship software, with millions of people using it to bypass firewalls and protect their identity online.

http://www.ultrareach.com/

Tomcat 6: How to change the ROOT application

ericyung — Fri, 27 May 2011 09:00:30 +0000

1) unzip tomcat.zip to a directory

2) setup JAVA_HOME environment variable

3) create following file, named as “ROOT.xml” in conf/Catalina/localhost/

4) restart tomcat

reference : http://stackoverflow.com/questions/715506/tomcat-6-how-to-change-the-root-application

Install matplotlib into Window

ericyung — Mon, 18 Apr 2011 06:19:55 +0000

matplotlib is a excellent tool for plotting chart. It is very easily to install into window environment. I am using python 2.6 in Window 7.

1) Download numpy

http://sourceforge.net/projects/numpy/files/NumPy/1.5.1/

binary: numpy-1.5.1-win32-superpack-python2.6.exe

2) Download matplotlib 1.0.1

http://sourceforge.net/projects/matplotlib/files/matplotlib/matplotlib-1.0.1/

matplotlib-1.0.1.win32-py2.6.exe

3) Installation
Execute: numpy-1.5.1-win32-superpack-python2.6.exe
Execute: matplotlib-1.0.1.win32-py2.6.exe

4) Testing
start python console and typo in following:
from pylab import * plot(range(10)) show()

then you should see a new window with a line chart like this:

AKG K702

ericyung — Sat, 29 Jan 2011 08:32:01 +0000

I purchased a AKG K702 for few months. It was introduced by my fans in Music industry.

It is comfortable to wear and great sound. What I like the most is, not like the other headphones, it does sound the original, without unnecessary bloom on the high/low frequency.

It has more reasonable price than the other.

when browse the youtube, I find a interesting video about how it’s made.

Now, I need to find a better sound source for it .

web dev – browser compatibility

ericyung — Sat, 18 Sep 2010 04:52:52 +0000

Recently restart some development on web page. Encounter some browser compatibility issue between IE and the others (sad we still need to support the IE 6)

After several attempts, finally find out it missing following line.

below is very good explanation:

is what’s know as a “document type declaration (or definition)” (DTD). In essence it identifies to the browser the type of code that is being used in the document. When declaring a doctype, it is then your responsibility as a designer to code the page to the specifications you have “declared” you are using in the doctype. In your example, you are declaring to the browser that you will be writing your code to HTML 4.01 transitional specifications and that is what it is expecting. If you falter from those “expectations” then your code may become considerd as “invalid” and may not display correctly in some browsers.

This is where things start to get a little confusing. The transitional doctype was institituted to allow a transitional period for designers to migrate from older coding standards to newer coding standards. An alternative to a “transitional” doctype would be a “strict” doctype.

In the example you have provided the distinction would be that for a “strict” doctype to be valid and display correctly, then you must write the code for your pages specifically to HTML 4.01 standards, whereas using a “transitional “doctype would allow you to use depracated (i.e. obsolete) code from say perhaps, HTML 4.0 or HTML 3.2 and, although it’s planned to eventually be elliminated would at least still work for the time being.

An example would be tags. Very old coding practice and now depricated and has been replaced by using style instead.

For more on doctype declarations (a.k.a. DTD’s) go here

http://www.w3schools.com/tags/tag_doctype.asp

link: http://www.ozzu.com/website-design-forum/first-line-html-code-doctype-html-public-t58206.html

another thing is the MUST HAVE (life saving) tools:

- firebug

- html validator.

Just hard believe how people to develop page without these tools in the old day.

Salute to the developers them.

Query the WEB : YSQL

ericyung — Wed, 27 Jan 2010 05:13:12 +0000

surf the net, I come across a great introduction on YSQL.

http://net.tutsplus.com/tutorials/other/an-api-for-the-web-learning-yql/

YSQL (“Yahoo Query Language”) is a tool to query a lot of things from web.
For example, you can query 10 “cat” photos from flickr by statement:

select * from flickr.photos.search where text=”Cat” limit 10

and result can be in XML and JSON format.

The best of all, it has an excellent console for you to test out the query.

http://developer.yahoo.com/yql/console/

yahoo really does something brilliant this time.

and here is the screencast:

http://developer.yahoo.com/yos/screencasts/yql_screencast.html

eject cd in mac book pro

ericyung — Tue, 13 Oct 2009 16:45:36 +0000

today I insert a DVD into my macbook pro but no response… it really make scare.

OK.. no panic.. googling and here is the answer (extracted from macrumors.com – http://guides.macrumors.com/Force_Eject_a_Stuck_CD_or_DVD )

# Open Disk Utility and choose the disc you wish to eject in the left-hand pane, then click on the Eject button.
# Some Macintoshes have a paperclip hole that you can insert a straightened paperclip into, manually triggering the eject mechanism.
# Open Terminal and type “drutil tray eject” to eject the disc/tray, and “drutil tray close” to close the tray.

Flight of the conchrods

ericyung — Sat, 01 Aug 2009 05:33:27 +0000

The mighty Comedy duo (Bret and Jemaine) New Zerland. Their lyrics is really funny. And the most I like their music.

Some performance I like on I found on youtube.
Flight Of the Conchords – Jenny

Flight Of The Conchords – The Humans Are Dead

( especially like binary solo – 00010001… and like my battery. )

Flight of the Conchords – Hiphopopotamus vs. Rhymenoceros

Flight of the Conchords Ep 3 Hiphopopotamus vs. Rhymenoceros

Flight of the Conchords Ep 6 Bowie’s In Space

(is it tribute to bowie?? )

Amazing – stop motion animation

ericyung — Sun, 26 Jul 2009 08:52:30 +0000

In dig into youtube, my attention focused on the stop motion animation/file.

The idea is simple, you take a 1000 pictures on an objection and and glue them together and play in ~24 frame per second. Everyone can do it using your webcam (of course it takes long time). But you just cannot image how hobbyist can take it into this extreme.

super awesome..

favicon – online favicon creator

ericyung — Sat, 25 Jul 2009 05:04:44 +0000

favicon.cc is a Online favicon creator. It is fast and easy to use (even in compare with icon creator program).

I am used this site to build icon for my google site, highly recommend!