Home Theatre System - 6200 P.M.P.O

Features :
1.5.1 Home Theatre System With Display and Remote
Output Power : 6200 Watts P.M.P.O,Professionally designed 2.built-in amplifier,subwoofer and satellite speaker designed,5.25" professionally enhanced subwoofer driver.
3.Outside heat sink designed,Dynamic bass boost, Low distortion.
4.The system can be connected to DVD and any other Audio output equipment.
5.The system is magnetically shielded which can be put near the monitor or TV and without magnetic influence.
6.Remote Control designed,AUX and 5.1 CH switch Function,Point hoster Power are pointing remote control on Power machine start job aboard first.
7.When playing the music,adjust all control knob to demanding level,Power Output : 30 W + 10W X 5
8.Frequency Response : BASS : 10Hz ~ 300Hz Front Surround : 220Hz ~ 45Khz S/N : > 60dB
Seperation :> 40dB Speaker : SubWoofer 5.25" + 3" X 5 + 1.5" x 2
Control : Volume , Mute, Menu, 5.1 /AUX / Remote
9.Accessories : Subwoofer Speaker :1 pcs Satellite Speaker : 5 pcs Audio Cable : 6 pcs User Manual: 1 pcs Remote Control :1 pcs

TOSHIBA Laptop - Satellite Portege M400

Features : 1.Model Name Portege M400

2.Part Code PPM40L 00E00F

3.Processor Intel Core Duo T2400

4.Speed 1.66 Ghz

5.RAM 512MB DDR II

6.Hard Disk 80 GB

7.DVD-R CD-RW DVD Combo

8.Display 12.1" XGA

9.Graphic Card Shared

10.Color/ Infra-red/ Bluetooth Titamium Silver/BT

11.Wi-Fi Internal 802.

11a/b/g Intel WIFI card.

12.Ports 3*USB 2.0, RGB, ieee 1394,4-in-1 card reader, External microphone, Headphone, RJ-13.11,RJ-45, DC-in14.Battery Back up 6 cell15.Weight 2.1Kg16.OS XP Tab

LENOVO Desktop Computer - Thinkcentre A55 8985xxx

Features :
1=Intel Dual Core 1.8 Ghz ( E2160 )
2=Intel 946 Gv Motherboard With Gigabit Lan & PCI Exp Slot
3=512 MB DDR II 667 Mhz
4=160 GB Sata Hard Disk
5=DVD +CD Rw Combo Drive
6=DOS
7=Warranty Status : 3 Years Limited WarrantyShipment Time : 7 DaysSeller Type : Trader

Crude Oil Distillation System

This distillation system is designed for the distillation of crude oil and petroleum products. Crude oil distillation can be complex and time consuming. Our crude oil distillation system includes everything needed to perform the ASTM methods, D2892 and D5236, for distilling crude oil. The system’s automation minimizes the operator time needed to perform the test. The equipment design makes the test straightforward and easier to perform.

Distillation Column Configuration

The crude oil distillation system can come in a wide variety of configurations with single or multiple distillation columns.

The packed column configuration is used to distill the crude oil up to a maximum 450°C atmospheric equivalent vapor temperature. It is sometimes called true boiling point distillation or D2892. The distillation column has 15 theoretical plates and complies fully with ASTM D2892. Pot sizes of 2 to 100 liters are available.

A variety of column packing types are available including Propak, Helipak, and structured packing. Other packing types are also available.

The vacuum pot still configuration is typically used to distill the residual material from the D2892 distillation out to atmospheric equivalent vapor temperatures up to 565°C or higher. The vacuum pot still complies fully with ASTM D5236. Pot sizes of 1 to 22 liters are available.More >>>>

Mobile Broadband Wireless Access (MBWA)

Mobile Broadband Wireless Access (MBWA) is a technology being developed by IEEE 802.20 and is aimed at wireless mobile broadband for operations from 75 to 220 mph (120 to 350 km/h). The 802.20 standard committee was first to define many of the methods which were later funneled into Mobile WiMAX, including high speed dynamic modulation and similar scalable OFDMA capabilities. It apparently retains fast hand-off, Forward Error Correction (FEC) and cell edge enhancements.

The Working Group was temporarily suspended in mid-2006 by the IEEE-SA Standards Board because it had been the subject of a number of appeals. A preliminary investigation of one of these "revealed a lack of transparency, possible 'dominance,' and other irregularities in the Working Group".^[20]

In September 2006, the IEEE-SA Standards Board approved a plan to enable the working group to continue under new conditions, and the standard is now expected to be completed by Q2 2008.

Qualcomm, a leading company behind 802.20, has dropped support for continued development in order to focus on LTE. >>>>

Wimax

WiMAX, meaning Worldwide Inter-operability for Microwave Access, is a telecommunications technology that provides wireless transmission of data using a variety of transmission modes, from point-to-multipoint links to portable and fully mobile internet access. The technology provides up to 72 Mbit/s symmetric broadband speed without the need for cables. The technology is based on the IEEE 802.16 standard (also called Broadband Wireless Access). The name "WiMAX" was created by the WiMAX Forum, which was formed in June 2001 to promote conformity and interoperability of the standard. The forum describes WiMAX as "a standards-based technology enabling the delivery of last mile wireless broadband access as an alternative to cable and DSL" .

Early WirelessMAN standards, the European standard HiperMAN and Korean standard WiBro have been harmonized as part of WiMAX and are no longer seen as competition but as complementary. All networks now being deployed in South Korea, the home of the WiBro standard, are now WiMAX.

As a short-range mobile Internet technology, such as in cafes and at transportation hubs like airports, the popular Wi-Fi 802.11b/g system is widely deployed, and provides enough coverage for some users to feel subscription to a WiMAX service is unnecessary. >>>>

Network Security (Wi-Fi)

During the early popular adoption of 802.11, providing open access points for anyone within range to use was encouraged to cultivate wireless community networks;^[13] particularly since people on average use only a fraction of their upstream bandwidth at any given time. Later, equipment manufacturers and mass-media advocated isolating users to a predetermined whitelist of authorized users—referred to as "securing" the access point.

Measures to deter unauthorized users include suppressing the AP's SSID broadcast, allowing only computers with known MAC addresses to join the network, and various encryption standards. Suppressed SSID and MAC filtering are ineffective security methods as the SSID is broadcast in the open in response to a client SSID query and a MAC address can easily be spoofed. If the eavesdropper has the ability to change his MAC address, then he can potentially join the network by spoofing an authorized address.

WEP encryption can protect against casual snooping, but may also produce a misguided sense of security since freely available tools such as AirSnort or aircrack can quickly recover WEP encryption keys. Once it has seen 5-10 million encrypted packets, AirSnort can determine the encryption password in under a second;^[14] newer tools such as aircrack-ptw can use Klein's attack to crack a WEP key with a 50% success rate using only 40,000 packets. The newer Wi-Fi Protected Access (WPA) and IEEE 802.11i (WPA2) encryption standards resolve most of the serious weaknesses of WEP encryption.

Attackers who have gained access to a Wi-Fi network can use DNS spoofing attacks very effectively against any other user of the network, because they can see the DNS requests made, and often respond with a spoofed answer before the queried DNS server has a chance to reply.>>>>