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Occupancy sensor types include: PIR sensors, which work on heat difference detection, measuring infrared radiation.Inside the device is a pyroelectric sensor which can detect the sudden presence of objects (such as humans) who radiate a temperature different from the temperature of the background, such as the room temperature of a wall.
Examples of implicit occupancy sensors includes CO 2 sensors and Wi-Fi-connected device count. [1] The selection of occupancy sensing devices depends on the size of the space being monitored, the budget for sensors, the desired accuracy, the goal of the sensor (detecting occupant presence or count), and security considerations.
Occupancy can also refer to the number of units in use, such as hotel rooms, apartment flats, or offices. When a motel is at full occupancy, it is common practice to turn on a NO VACANCY neon sign. Completely vacant buildings can also attract crime. A 2017 study found that demolishing vacant buildings "reduce crime by about 8 percent on the ...
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During the Vietnam War, soldiers and deserters from the United States Army maintained a thriving black market at Chợ Lớn, trading in various American and especially U.S. Army-issue items. This was the area, near the Quan Âm Pagoda where photojournalist Eddie Adams took his famous execution photograph. [ 8 ]
Thổ Chu Island (Vietnamese: đảo Thổ Chu or đảo Thổ Châu) is the largest island of Thổ Chu Islands in the Gulf of Thailand. Here lies the administrative center of Thổ Châu Commune, Phú Quốc District, Kiên Giang Province, Vietnam. In the West, [1] the island is also known as Poulo Panjang or Pulo Panjang. [2] [3] [4]
Chữ Nôm (𡨸喃, IPA: [t͡ɕɨ˦ˀ˥ nom˧˧]) [5] is a logographic writing system formerly used to write the Vietnamese language.It uses Chinese characters to represent Sino-Vietnamese vocabulary and some native Vietnamese words, with other words represented by new characters created using a variety of methods, including phono-semantic compounds. [6]
Cốc Cốc was founded in 2008 [9] as iTim Technologies LLC [10] by Victor Lavrenko, a Soviet-born Israeli entrepreneur, the founding CTO of Mail.ru, and founder and CEO of the Russian search engine Nigma.ru, along with Vietnamese co-founders Lê Văn Thanh, Nguyễn Thanh Bình, and Nguyễn Đức Ngọc.