All articles A–Z

Site C dam

The Site C dam, formally the John Horgan Dam, is a BC Hydro hydroelectric dam on the Peace River in northeast British Columbia, generating about 5,100 GWh yearly.

Oct 15, 2026

Site engineer

A site engineer is a construction professional based on a building site who sets out the works to design dimensions and supervises quality, safety, and daily execution.

Oct 15, 2026

Site license

A site license is a software agreement permitting use of a product at a single site, usually with unlimited end users, costing less than buying individual copies.

Site map

A site map is a file or page listing a website's URLs so search engines or people can find them; the XML form, sitemap.xml, is common.

Oct 20, 2026

北庭故城遗址 (Site of Beshbalik City, Beiting Gucheng) is a 1.5 km² ruined medieval city in Jimsar County, Xinjiang, seat of the Tang Beiting Protectorate, Uyghur summer capital and Yuan Beshbalik; a 2014 UNESCO Silk Roads World Heritage site and Xinjiang's only national archaeological park.

Site of Han Chang'an City

汉长安城遗址 (Site of Han Chang'an City), capital ruins of the Western Han and Xin dynasties in northwest Xi'an; 36 km² walled city, 12 triple-gateway gates, Weiyang Palace UNESCO site since 2014, excavated since 1956.

Site of Palmyra

Site of Palmyra (Tadmor): UNESCO World Heritage site since 1980 in Syria's desert northeast of Damascus, a 1,640 ha caravan-city ruin with a 1,100 m colonnade, on the danger list since 2013 after ISIS destruction in 2015.

Site of Reversible Destiny

Site of Reversible Destiny – Yoro Park (養老天命反転地), an experimental art-architecture park by Arakawa and Madeline Gins in Gifu, Japan, opened 1995, 18,100 sq m, built to challenge the body and reverse destiny.

Site of Special Scientific Interest

Site of Special Scientific Interest (SSSI): UK designation for land of special flora, fauna, or geological interest, notified by Natural England under the Wildlife and Countryside Act 1981; 4,127 English sites covering 1,088,000 hectares, with condition targets to 2042.

Site of the Ancient City of Bian

卞国故城遗址 (Bian ancient city site), Spring-and-Autumn to Han walled city in Bianqiao Village, Sishui County, Jining, Shandong; rammed-earth walls, 2017 survey plan 1000 x 970 m; eighth-batch national key cultural relics protection unit, 2019.

Site of the Ancient City of the State of Qi

杞国故城遗址 (Site of the Ancient City of the State of Qi), a Spring and Autumn to Han walled-city site at Huangqibao, Fangzi District, Weifang, Shandong; near-square 2.8-million-square-meter Zhou-Han city identified with the Si-surname state of Qi's Chunyu capital, a seventh-batch national heritage site (2013).

Site of the Old City of Raozhou

饶州故城址 (Raozhou Gucheng Zhi), Liao dynasty city site in Linxi County, Chifeng, Inner Mongolia; '日'-shaped two-city plan, 1,400 x 700 m, built to settle Bohai migrants; national key cultural relic since 2013.

Site of the Sui Daxing and Tang Chang'an City

隋大兴唐长安城遗址 (Sui Daxing–Tang Chang'an city site), the buried 582 CE planned capital beneath Xi'an, a 1996 national key protection unit including the Qinglong Temple site, a Tang Esoteric Buddhist monastery where Huiguo taught Kukai.

Site plan

A site plan, also called a plot plan or block plan, is a scaled bird's-eye drawing showing a property's legal boundary, structures, setbacks, easements, utilities, and drainage.

Site Ramsar des Monts Birougou

Site Ramsar des Monts Birougou, Ramsar site no. 1654 in southern Gabon, designated 2 February 2007; 536,800 ha of Chaillu Massif forest containing Monts Birougou National Park, source of the Nyanga and Ngounié rivers, with about 20 primate species.

Site Ramsar du Complexe W

Site Ramsar du Complexe W (Ramsar Site no. 1668) is a 926,927-hectare Beninese Ramsar wetland designated 2 February 2007, comprising W du Benin National Park and border protected areas, part of the W-Arly-Pendjari transboundary complex.

Site Ramsar Ntokou-Pikounda

Site Ramsar Ntokou-Pikounda (Ramsar no. 2079) is a 427,200-hectare Congolese wetland and national park designated 18 September 2012, home to gorillas, forest elephants, chimpanzees, and over 180 fish species in the Congo Basin.

Site Ramsar Odzala Kokoua

Site Ramsar Odzala Kokoua (Ramsar Site 2080) is a 1,300,000 ha wetland of international importance in Republic of Congo, designated 18 September 2012, overlapping Odzala-Kokoua National Park and Biosphere Reserve, with gorillas, chimpanzees and forest elephants.

Site Ramsar Vallée du Niari

Site Ramsar Vallée du Niari (Ramsar site no. 2081), a 1,581,000-hectare Wetland of International Importance designated 18 September 2012 in southern Republic of the Congo, in the Kouilou-Niari basin, home to elephants, gorillas, chimpanzees, and over 200 waterbird species.

Site reliability engineering

Site reliability engineering, or SRE, is an engineering discipline applying software engineering methods to large-scale system operations, coined at Google and managed through service level objectives and error budgets.

Site-directed mutagenesis

Site-directed mutagenesis (SDM) is an in vitro method for creating a specific mutation in a known DNA sequence, established by Michael Smith in 1978 (1993 Nobel Prize in Chemistry), performed by PCR-based workflows such as QuikChange, overlap extension, and inverse PCR.

Site-directed RNA editing

Site-directed RNA editing uses engineered enzymes or guide RNAs to alter individual RNA bases without changing the genome, offering transient, repeatable therapies now in early clinical trials.

Site-directed spin labeling

Site-directed spin labeling (SDSL) is a biophysical technique that attaches nitroxide labels at chosen protein sites, letting EPR spectroscopy report structure, dynamics, and nanometer distances.

Site-specific infrared dichroism spectroscopy

Site-specific infrared dichroism (SSID) is an infrared spectroscopy method that measures polarized absorbance of isotope-labeled bands to determine the orientation of labeled sites in oriented molecular assemblies.

Site-specific integration

Site-specific integration is a genetic engineering method that inserts a transgene into a chosen genomic locus using recombinases or nucleases, giving reproducible expression free of position effects.

Site-specific recombination

Site-specific recombination is a genetic engineering method in which recombinase enzymes exchange DNA strands at short recognition sequences to delete, invert, or integrate genes in cells.

Site-specific theatre

Site-specific theatre is performance created for and conditioned by a particular non-theatrical location or found space, also called site-specific or site-responsive performance; it emerged from 1960s art and theatre trends and now spans heritage sites, community projects, and digital platforms.

Sitelen Pona

Sitelen Pona is the logographic script for the constructed language Toki Pona, created by Sonja Lang in Toki Pona: The Language of Good (2014), with one pictorial glyph per word, composite glyphs, cartouches for names, UCSUR encoding, and the 2026 Common Sitelen Pona standard.

Sitetracker

Sitetracker is a Montclair, New Jersey software company, led by CEO Giuseppe Incitti, selling cloud-based deployment and asset lifecycle management software to telecom, energy, utility, and EV charging providers.