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This book can be used as a general handbook for applying electrical engineering to the oil, gas and
petrochemical industries. The contents have been developed from a series of lectures on electrical
power systems, given to oil company staff and university students, in various countries. The author
has condensed many years of his knowledge and practical experience into the book.
Tuyển tập các báo cáo nghiên cứu về hóa học được đăng trên tạp chí sinh học quốc tế đề tài : The influence of a weight-bearing platform on the mechanical behavior of two Ilizarov ring fixators: tensioned wires vs. half-pins
WiMAX (Worldwide Interoperability for Microwave Access) is a wireless broadband access network named by industry group called the WiMAX forum formed in June 2001. It is Wireless MAN with IEEE 802.16 family standards. Loosely, WiMAX is a standardized wireless version of Ethernet that enables the last mile, intended primarily as an alternative to wire technologies (such as Cable Modems, DSL and T1/E1 links ) to provide broadband access to customer premises.
Wireless communications offer organizations and users many benefits such as portability and flexibility,
increased productivity, and lower installation costs. Wireless technologies cover a broad range of
differing capabilities oriented toward different uses and needs. Wireless local area network (WLAN)
devices, for instance, allow users to move their laptops from place to place within their offices without the
need for wires and without losing network connectivity. Less wiring means greater flexibility, increased
efficiency, and reduced wiring costs.
A new type of semiconductor laser is studied, in which injected carriers in the active region
are quantum mechanically confined in localized finite self-assembled wire-like quantumdash
(Qdash) structures that are varied in sizes and compositions. Effects of such carrier
distribution and quasi three-dimensional density of states contribute to a quasisupercontinuum
interband lasing characteristics, which is a new laser design platform as
compared to continuous broad emission spectrum generated by nonlinear media pumped
with ultrashort laser pulse....
The purpose of the Windows operating system is to organize and control all of the
components attached to and installed on your computer. You could say that Windows
is a platform and its graphical interface allows you, the user, to interact with and
manage all of the items that sit on the platform. In other words, most components are
not hard-wired to the operating system, but you can freely add, remove, and work with
ADC’s Quad Loop Extender (QLX) 3192 shelf adapter is an adapter board that allows for an ADC
Soneplex QLX module to be plugged into an industry-standard 3192 office repeater shelf. The QLX
3192 shelf adapter also supports an optional ADC System Controller Unit (SCU) for system management
and craft port access.
ADC's Loopstar® Fiber Field Cabinet for ADC’s next-generation SONET platform offers service
providers an economical solution for providing legacy TDM services (DS1/DS3) and next-generation
Ethernet services in areas that cannot be served from local wire centers or mobile switching
In these environments, ADC’s small outdoor enclosure, packaged with ADC’s LoopStar 800 SONET
access system and other supporting equipment, allows carriers to continue providing customer
requirements and offering additional services.
The whole group was transferred by boat to a floating pontoon located approximately 100m from
the bank. The structure was anchored in water about 25-30 m deep. This was the second such
platform constructed at Yonki Dam; the first had been vandalised and sunk. The new structure
was floated using large sections of sealed PVC piping lashed with wire and rope. Timber slats
were fixed on the top to create a walking platform. Experiment cages were about 1m3
framed at the top with bamboo and secured to the sides of the pontoons at various locations. The