Results 11 to 20 of about 24,637 (271)

A Novel Air-Door Opening and Closing Identification Algorithm Using a Single Wind-Velocity Sensor

Sensors, 2022
The air-door is an important device for adjusting the air flow in a mine. It opens and closes within a short time owing to transportation and other factors.
Wentian Shang, Lijun Deng, Jian Liu
doaj   +2 more sources

An Intelligent Automated Door Control System Based on a Smart Camera

Sensors, 2013
This paper presents an innovative access control system, based on human detection and path analysis, to reduce false automatic door system actions while increasing the added values for security applications.
Jiann-Jone Chen, Hsin-Teng Sheu, Chin-Lun Lai, Jie-Ci Yang   +3 more
doaj   +2 more sources

The symbolism of the number three in various forms of material culture in funerary architecture during the Old Kingdom [PDF]

Pražské Egyptologické Studie, 2021
In various expressions of material culture examples not only of the use the number three but also of sub units of three equal and mainly simple decorative themes employed in combination with another decorative theme can be observed.
Leo Roeten
doaj   +1 more source

Door pinching detection system using door end rubber with built-in pressure-sensitive sensor and non-contact power supply

Nihon Kikai Gakkai ronbunshu
On railway vehicles, when passengers get on or off, their luggage and other objects can get caught in the doors. If the object caught is large, the pinching of the object is detected by the current door pinching detection device (DPDD).
Shogo MAMADA, Hiroshi TANAKA, Momoko YOSHIDA, Tatsuya OTA, Yukihiro AKASAKA, Rena WATANABE   +5 more
doaj   +2 more sources

An air door opening and closing time identification and stage division method based on the wind speed data of a single sensor

Scientific Reports
In mines, tunnel ventilation is monitored using wind speed sensors to measure the stability of the mine ventilation system. However, opening and closing the air door will cause violent fluctuations in the monitoring data of the wind speed sensors.
Ying Song, Shan Li, Wentian Shang
doaj   +2 more sources

Application of Platform Screen Door Gap Detection Device on Fully Automatic Operation Metro Lines

Chengshi guidao jiaotong yanjiu
Objective On the fully automatic operation metro lines, there exists a gap between the platform screen door and the train, leading to the risk of clamping people and objects.
LI Hongming
doaj   +2 more sources

GA-YOLOv11: A Lightweight Subway Foreign Object Detection Model Based on Improved YOLOv11 [PDF]

Sensors
Modern subway platforms are generally equipped with platform screen door systems to enhance safety, but the gap between the platform screen doors and train doors may cause passengers or objects to become trapped, leading to accidents.
Ning Guo, Min Huang, Wensheng Wang
doaj   +2 more sources

Archaeological Exploration and Conservation at the Mausoleum and Tomb of False Door, Aksum, Ethiopia

Ethiopian Journal of the Social Sciences and Humanities, 2011
Archaeological investigations undertaken at the Mausoleum and the Tomb of False Door in 2005 in the Main Stelae Field, in Aksum, yielded two Aksumite metal cramps and an Aksumite main entrance to the Mausoleum.
Tekle Hagos
doaj   +3 more sources

False-Niche or False-Door? The Evidence in Real and Represented Architecture

, 2018
One of the major features documented at Amluk-dara is the presumed presence of a huge central niche, which was the architectural target of the monumental staircase. The same feature has been documented in other stupas, such as Tokar-dara in Swat and Zar Dheri in the Hazara district, as well as in another gigantic stupa at Shevaki 1 in Kapisa.
Elisa Iori
openaire   +2 more sources

The False Door of Shepsi at the Egyptian Museum of Cairo [PDF]

International Journal of Heritage Tourism and Hospitality, 2020
Taher Abdelhamid, Abdelhamid Taher
exaly   +2 more sources