Map Box.net drive in computer using WebDAV

We can create a local box.net virtual drive in computer using WebDAV. We will be able to do most of the file operations (copy/paste/rename) from local computer. Note that the local drive will be only a link to your box.net folder and contents, which means the actual folders and files will not be downloaded to local computer (like Dropbox).

In Windows 7,

1. Go to (My) computer.
2. Click Map network drive
3. In the folder field, write  https://www.box.net/dav
4. After few seconds, there will be prompt for user name and password. Provide your box.net user name and password.
5. Windows will create a local drive pointing to your box.net folders.

How to Convert Magnet links into Torrent Files for Dropbox

Some of the torrent sites like Piratebay are now offering only magnet links. If you would like to start downloading remotely using dropbox, the magnet links won't work. To remote start downloading, you need the actual .torrent file.


Steps to follow:

1. Click the magnet link. Your default torrent client (for example utorrent) will start. Press OK.
2. After the download has started, go to %appdata%\uTorrent\ using Windows Run command (for other clients look for appropriate folder in  %appdata%.)
3. You will see the .torrent file there (if the .torrent file is not there, it means the torrent downloading has not yet started - wait for couple of minutes. Once the download is started, the .torrent file will show up).

Now you have the .torrent file to email or copy to Dropbox.


Option 2: You can try to use http://magnet2torrent.me. However, it may not work all the time. It may work, if your torrent is a popular one.

Calculation of Vapor Pressure using HYSYS.

1. Create the stream with required composition.

2. Enter the desired temperature in the stream properties.

3. Set the vapor fraction to 0.

Pressure calculated by HYSYS will be the vapor pressure of that stream. Note that HYSYS is actually calculating the bubble pressure when vapor fr is set to 0. But bubble pressure is the vapor pressure at the specified temperature (good for any temperatures below critical temperature).

Note that vapour pressure greater than operating pressure (for a multicomponent mixtures) just means that the liquid is flashing (Vapor-liquid mixture).


To keep a liquid phase the operating pressure of a two phase stream is usually greater than the liquid vapour pressure. Otherwise the liquid would flash so that the vapour pressure of the new liquid is below the operating pressure. This means for a two phase multicomponent mixture flow, the vapour pressure of liquid at operating temperature (not entire mixture) is equal to the operating pressure.

DD-WRT Client bridge on Linksys E3000.

These steps are adapted from http://www.dd-wrt.com/wiki/index.php/Client_Bridged. However following those steps exactly did not work for me. So I modified the steps.

My Access point router IP address was 192.168.1.254 (not a DD-WRT router) and E3000 router IP address was 192.168.1.1.

1. Download and install a recommended build for your router. DO NOT USE SP1. I used Kong build 19200M (SP2 build).
2. Do a HARD reset on your router (press the reset buttom on the back of E3000 router for at least 15 seconds).
3. Connect a cable from your computer to the LAN port on your router.
4. Set your computer to a static IP address of 192.168.1.9
5. Set your browser to 192.168.1.1 and open the dd-wrt webgui.
6. You should be asked to change your password and username. Carefully type these in. (If you aren't asked for a password and username, do a hard reset, this time doing it properly!) Hit change password.
7. Go FIRST to wireless, wireless security and enter the security type and key that matches your primary router.
8. Hit SAVE, (NOT APPLY)
9. Go to the wireless, basic settings page and change the wireless mode to Client Bridge.
10. Your wireless network mode, channel and encryption should be set to the same as the primary router.
11. Set the wireless network name to exactly the same as your primary router. Make sure spelling and capitalization match.
12. Hit SAVE, (NOT APPLY)
13. Goto Setup, basic setup and enter a router Local IP address of 192.168.1.1. (it will be already that IP address). Leave subnet mask at 255.255.255.0.
14. Set the Gateway IP to the IP of your primary router. (192.168.1.254 in my case)
15. Leave Local DNS blank
16. Change your timezone and DST to match where you are.
17. Hit SAVE, (NOT APPLY)
18. Goto Security, Firewall. 
19. Disable SPI Firewall
20. Hit Save and then Apply.
21. You are done. Wait for at least 5 minutes for the router to apply the configuration and get the internet connection from primary router. 

Full Vacuum Vs Half Vacuum (FV Vs HV)

Full Vacuum

FV - for vessels having steam as a signifacant component during normal operation (e.g. amine regenerators)
- for vessels operating under full or partial vacuum during normal operation
- for vessels that require steamout as part of routine operation

Half Vacuum
HV - for vessels that require steamout during maintenance only and does not have steam during normal operation

Thanks doct9960

Boiler and Pressure Vessel engineering - FV versus Half FV for BPVD?:

Interconnection tag number is P&ID.

Interconnection tag number is P&ID is called OPC.

"Interconnections (OPC) – are shown between lines (piping OPC) and instrument signals (Instrument OPC) present on two different P&ID sheets. Sometime these interconnectors are also assigned with a unique tag number. For easy identification of the connections between two P&IDs. A connector present on two different drawing connection a line or a signal carries the same tag number."

Credits: Piping and Instrumentation Diagram – P&ID | Enggcyclopedia:

LOC acronym

In Chemical Engineering plant terms, we always talk about Loss of containment. So the acronym LOC is used in HAZOPs regularly to indicated "loss of containment".