Bulldozer

A bulldozer is a crawler (continuous tracked tractor) equipped with a substantial metal plate (known as a blade) used to push large quantities of soil, sand, rubble, or other such material during construction or conversion work and typically equipped at the rear with a claw-like device (known as a ripper) to loosen densely compacted materials.

Bulldozers can be found on a wide range of sites, mines and quarries, military bases, heavy industry factories, engineering projects and farms.

The term "bulldozer" refers only to a tractor (usually tracked) fitted with a dozer blade.

Description

Most often bulldozers are large and powerful tracked heavy equipment. The tracks give them excellent ground holding capability and mobility through very rough terrain. Wide tracks help distribute the bulldozer's weight over a large area (decreasing ground pressure), thus preventing it from sinking in sandy or muddy ground. Extra wide tracks are known as swamp tracks or LGP (low ground pressure) tracks. Bulldozers have transmission systems designed to take advantage of the track system and provide excellent tractive force.

Bulldozer (disambiguation)

Bulldozer may refer to:

Bulldozer (microarchitecture)

The AMD Bulldozer Family 15h is a microprocessor microarchitecture developed by AMD for the desktop and server markets. Bulldozer is the codename for this family of microarchitectures. It was released on October 12, 2011 as the successor to the K10 microarchitecture.

Bulldozer is designed from scratch, not a development of earlier processors. The core is specifically aimed at computing products with TDPs of 10 to 125 watts. AMD claims dramatic performance-per-watt efficiency improvements in high-performance computing (HPC) applications with Bulldozer cores.

The Bulldozer cores support most of the instruction sets implemented by Intel processors available at its introduction (including SSE4.1, SSE4.2, AES, CLMUL, and AVX) as well as new instruction sets proposed by AMD; ABM, XOP, FMA4 and F16C.

Overview

According to AMD, Bulldozer-based CPUs are based on GlobalFoundries' 32 nm Silicon on insulator (SOI) process technology and reuses the approach of DEC for multitasking computer performance with the arguments that it, according to press notes, "balances dedicated and shared computer resources to provide a highly compact, high units count design that is easily replicated on a chip for performance scaling." In other words, by eliminating some of the "redundant" elements that naturally creep into multicore designs, AMD has hoped to take better advantage of its hardware capabilities, while using less power.

Xenia

Xenia may mean:

Generosity or hospitality

Places

People

Xenia (hotel)

Xenia (Ξενία) was a nationwide hotel construction program initiated by the Hellenic Tourism Organisation (Ελληνικός Οργανισμός Τουρισμού, E.O.T.) to improve the country's tourism infrastructure in the 1960s and 1970s. It constitutes one of the largest infrastructure projects in modern Greek history.

History

Until the 1950s, Greece featured only a few major hotels, mostly situated in the country's great cities, and a few smaller ones in islands like Corfu or Rhodes. In 1950, EOT began a program to construct and operate hotels across the country, especially in the less-travelled areas. Locations were specially selected and the architecture combined local knowledge with standardized elements. The buildings were embedded in the landscape, but at the same time followed a modernist style.

The first manager of the project was the architect Charalambos Sfaellos (from 1950 to 1958) and from 1957 the buildings were designed by a team under Aris Konstantinidis. Many private hotel projects in Greece were inspired by the Xenia hotels and the program had reached its aims in the early 1970s. In 1974 the construction program was complete. The Xenia program itself was officially terminated in 1983, and the hotels were given over to private operators or eventually sold off.

Grand Duchess Xenia Alexandrovna of Russia

Grand Duchess Xenia Alexandrovna of Russia (Russian: Ксения Александровна Романова; 6 April 1875 – 20 April 1960) was the elder daughter of Emperor Alexander III of Russia and Empress Maria Feodorovna of Russia (née Princess Dagmar of Denmark) and the sister of Emperor Nicholas II. She married her second cousin Grand Duke Alexander Mikhailovich of Russia, with whom she had seven children. During her brother's reign she recorded in her diary and letters increasing concern about his rule. After the fall of the monarchy in February 1917 she fled Russia, eventually settling in the United Kingdom.

Early life

Grand Duchess Xenia Alexandrovna was born on 6 April 1875 at Anichkov Palace in St. Petersburg. She was the fourth child and elder daughter among the six children of Alexander III of Russia and his wife Empress Maria Feodorovna of Russia (née Princess Dagmar of Denmark).

After the assassination of her grandfather Tsar Alexander II of Russia, when Xenia was 6 years old, her father Alexander III ascended to the Russian throne. It was a difficult political time, plagued with terrorist threats and for security reasons Alexander III moved with his family from the Winter Palace to Gatchina Palace. Xenia and her siblings were raised mostly there with simplicity. As a child, Xenia was a tomboy and was very shy.