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"China Changfeng Mechanics and Electronics Technology Academy (中国长峰机电技术研究设计院) or China Changfeng, founded in 1957, is one of the four design academies under the China Aerospace Science and Technology Corporation (CASC). It is located on Yongding Road, in the western suburbs of Beijing, and employs more than 16,000 personnel. Changfeng conducts research, development and production of air and missile defense, ASAT, and associated radar systems. It is also responsible for several SAM systems, including the HQ-2, HQ-7, and HQ-61. Changfeng developed the 8610 SRBM based on the HQ-2 SAM, previously developed by the Academy. In recent years, Changfeng has expanded its focus to include submarine-launched and land-based ballistic missiles, such as the JL-1, DF-1 and DF-21. Other names Other names for Changfeng are : Second Academy, Surface-to-Air Missile (SAM) Academy, China Changfeng Group (CCFG), China Changfeng Company (CCC), China Changfeng (CCF), China Chang Feng Mechano- Electronic Engineering Company. Sources * NTI, China Changfeng Mechanics and Electronics Technology Academy References Category:Space program of the People's Republic of China Category:Aerospace companies of China "
"The Battle of Pirot ( ) took place during the Serbo-Bulgarian War between the 26th and 27 November, 1885 near the town of Pirot, Serbia.The battle opposed the Bulgarian Western Corps to the Serbian Nišava Army and ended with a Bulgarian victory and the signing of an armistice. The battle led to the treaty of Bucharest ending the Serbo-Bulgarian War restoring peace between the two countries. Prelude After the Bulgarian victory at the Battle of Slivnitsa, fought from 17-19 November 1885, the Bulgarian army counter- attacked. The Bulgarian troops defeated the Serbs at Gurgulyat (19 November) and Dragoman (22 November), and subsequently reached the city of Pirot,Пейчев, А. и др. 1300 години на стража, София, 1984, Военно издателство, p. 211 where the Serbian Nišava army occupied defensive positions in the hills to the east of the town. The battle On 26 November, the Bulgarians defeated the Serbian cover forces along the border and moved on to Pirot. At around 15:00 on the same day, the Bulgarian advanced guard engaged the enemy, first achieving success on the left flank of the front, after the detachment of Captain Popov had seized the heights of Divan and Cherni Vrah. On the right flank, the 10th Regiment of the Serbian Šumadija Division retreated followed by the two battalions sent to defend Pirot. During the skirmishes on the left flank, the Bulgarians had suffered 48 killed, 136 wounded and 27 missing, while the Serbians lost 67 soldiers, had 134 wounded and 85 captured. The Serbians were badly equipped and unprepared using second hand obsolete Russian artillery while the Bulgarian used modern German weaponry. During the night of 27 November, the Serbs regrouped and at dawn managed to retake Pirot from the Bulgarians. The column of Major Gudzhev attacked the Šumadija Division and the Bulgarians managed to push the Serbs to the river Temska. The retreat of the Šumadija Division forced the Drina Division to pull back as well and the Bulgarians pursued after them. On the left flank, the Bulgarians were also successful. The Serbs managed to hold on their position in the southern part of Pirot until the night. Later the Bulgarians, pushed the Serbs from the city and attack Serbian army positions west of the town of Pirot. The Serbians continued to hold a position to the south of the town till nightfall. Aftermath A day after the victory, the Bulgarian army prepared to continue its advance to the city of Niš, which was a target of Greater Bulgarian national project, but the Austro-Hungarian delegation in the Bulgarian capital made it clear that if the Bulgarian advance continued, Austria-Hungary would have intervened in the war on the side of Serbia. As result the same day an armistice was concluded. The treaty of Bucharest on 3 March 1886 brought the brief war to an end and restored the prewar status quo. Notes *a. For Julian calendar was 14 and 15 November. ReferencesSources * Атанасов, Щ. и др. Българското военно изкуство през капитализма, София, 1959, Държавно военно издателство при МНО * Димитров, И., Съединението 1885 - енциклопедичен справочник, София, 1985, Държавно издателство „д-р Петър Берон" * Недевска, Е., Шанов, С. Сръбско-българската война 1885. Сборник спомени, София, 1985, Военно издателство * Венедиков, Й., История на доброволците от Сръбско- българската война 1885 година, София, 1985, Издателство на отечествения фронт, стр. 181-190 * Христов, Х. и др. Сръбско-българската война 1885. Сборник документи, София, 1985, Военно издателство Category:Conflicts in 1885 Category:Battles involving Bulgaria Category:Battles involving Serbia Category:1885 in Bulgaria Category:Serbo-Bulgarian War Category:1885 in Serbia Category:Pirot District Category:November 1885 events "
"Water Sky Garden is a sculptural environment designed by artist Janet Echelman. The garden is located outside the Richmond Olympic Oval, an official venue for the 2010 Vancouver Olympic Games. The installation consists of a wetland treatment pond, 300 ft. boardwalk, two 52 ft. pedestrian bridges, two net sculptures, and a fountain. Design Water Sky Garden, Vancouver The boardwalk and "sky lanterns" were inspired by Richmond's cultural communities. Richmond's immigrant population is the highest of any city in Canada. More than half of these immigrants are of Asian descent. The boardwalk was designed to resemble the choreography of the Dragon Dance, a performance frequently used in Chinese festivals. The Nitobe Memorial Garden and Dr. Sun Yat-Sen Chinese Garden, both in Vancouver, were important inspirations for paths, ponds and framing of the garden's landscape. The boardwalk was designed to encourage people to linger and view the garden. Water Sky Garden from underneath Top Detail of Water Sky Garden Snowy day at Water Sky Garden The pond collects rainwater from the Oval's roof and surrounding landscape. It is then purified and re-circulated to be used to irrigate the plants in the surrounding space, provide clean water for the Oval, and empty into the adjacent Fraser River. Aeration for the pond is provided by a fountain on the South side of the garden. The "sky lanterns" are made of ultraviolet-resistant PTFE fiber nets, supported by painted galvanized steel rings. At night, the lanterns are lit with submerged lights, and the boardwalk is lit with LED spotlights. The eastern lantern is 75 ft. at its largest diameter, and the netting is 25 ft. deep. The northern lantern is 52 ft. at its largest diameter. Its net is 25 ft. deep with a 14 ft. tail that descends to the pond below. The garden was designed so that participants can both look at and look through the netted sculptures without obstructing the view of the Oval building or the surrounding garden area. The initial design process began with the creation of a three-dimensional computer model created using custom software. Those forms were then translated into CAD software in order to define the geometry and surfaces of the sculpture. These digital structures were then exported to a gravity and wind simulator in order to determine the necessary twine tenacity to withstand strong winds. From this information, construction drawings are created which include specific looming patterns, color information, and lengths of meshes. References External links * Water Sky Garden on Janet Echelman's website * TENARA Sewing Thread official site * Water Sky Garden on Google Street View * "Sculpting Urban Airspace: Janet Echelman", September 2011 Sculpture Magazine Category:Public art Category:Landscape design history Category:Outdoor sculptures in Canada Category:Footpaths Category:Pedestrian bridges in Canada Category:Fountains in Canada Category:2010 sculptures Category:Constructed wetlands "