Petroleum Distillation and Gasoline Properties
REDUCED PRESSURE DISTILLATION
Distillation is a process designed to separate liquids by boiling point. After fractional distillation or topping, a material called petroleum spirit is obtained and must be further distilled for use. The problem is that if it is distilled in the same way as crude oil, its high boiling point would cause much of the material to evaporate or burn. The decomposition temperature of the material is less than the boiling point. At 350 °C the carbon chains begin to decompose.
Read MoreTransformers: Principles, Connections, and Applications
Transformers
Schedule Index
The process for determining the rate schedule is as follows:
- For single-phase transformers, represent the primary winding so that terminal A is at the top of the diagram (coinciding with the number 12 of an imaginary clock placed overlapping the vector diagram).
- Represent the secondary winding, noting that primary and secondary windings located in the same column produce in-phase FEMs (homologous terminals).
- Overlap both diagrams. The schedule is the angle formed by two vectors:
Understanding IP Addressing, Subnetting, and Network Security
- CIDR (Classless Inter-Domain Routing) is a subnetting method that allows administrators to divide network and host bits anywhere in the address, not just between octets. It introduces a new notation: a standard dotted-decimal address followed by a forward slash and a numeral indicating the network prefix size. The IANA (Internet Assigned Numbers Authority), managed by ICANN (Internet Corporation for Assigned Names and Numbers), is the source of all registered addresses. They allocate address blocks
Network Configuration for Cancun, Los Cabos, and Mexico
Cancun
Switch Configuration
Switch>enable
Switch#conf t
Switch(config)#hostname SW-C1
SW-C1(config)#interface giga 0/1
SW-C1(config-if)#switchport mode trunk
SW-C1(config-if)#exit
SW-C1(config)#vlan 20
SW-C1(config-vlan)#name CANCUN1
SW-C1(config-vlan)#exit
SW-C1(config)#vlan 30
SW-C1(config-vlan)#name CANCUN2
SW-C1(config-vlan)#exit
SW-C1(config)#vlan 40
SW-C1(config-vlan)#name CANCUN3
SW-C1(config-vlan)#exit
SW-C1(config)#interface range fast 0/1-13
SW-C1(config-if-range)#switchport mode access
Introduction to Distributed and Cloud Computing
HW 1
Utility Computing, Distributed Computing, and Paradigms
- Utility computing offers computing resources as a metered service.
- Distributed computing is a computer system in which several interconnected computers share the computing tasks assigned to the system.
- Paradigms of distributed computing include cluster computing, grid computing, and cloud computing.
Improving Performance
- Three ways to improve performance: work harder, work smarter, and get help.
- In computer analogy, the three ways to run applications
Valve Guide: Types, Functions, and Applications
Section 1: Control Valves and Screw Closure
Screw Closure
A screw:
- Interior: Thread rod driver fits into a capsule.
- Exterior: RBI stem thread is on the outside of the capsule.
Screw Valve Types
- Globe Valve: Spherical body with ends in a straight line. Rod axis is perpendicular to the body ends.
- Oblique Valve: Spherical body with ends in a straight line. Rod axis is oblique to the body ends.
- Valve Conduits in Right Angles: Cylindrical body with ends at right angles. Rod axis is straight with one end of the