Results 21 to 30 of about 450,897 (302)

An optical system for measuring the eccentricity of glass wool pipe-for industrial use [PDF]

open access: yes, 1999
An optical system for measuring the eccentricity of the glass wool pipe has been developed for an industrial use. The system consists of a contact sensor, a photo light sensor and a signal processing system with a logic circuit.
68176   +7 more
core   +1 more source

Integration of Horizontal Light Pipe and Shading Systems in Office Building in the Tropics

open access: yesJournal of Applied Science and Engineering, 2021
Many high-rise office buildings in the tropics have a full-glazed façade and a deep open-plan space. Without any external shading, the office space has a non-uniform daylight distribution and glare problem.
Feny Elsiana   +2 more
doaj   +1 more source

Universal Model of Finite-Reynolds Number Turbulent Flow in Channels and Pipes [PDF]

open access: yes, 2007
In this Letter we suggest a simple and physically transparent analytical model of the pressure driven turbulent wall-bounded flows at high but finite Reynolds numbers Re.
D. A. Naot   +6 more
core   +2 more sources

Heliostats Daylighting System for Multi-floor Buildings

open access: yesJournal of Daylighting, 2019
Daylighting has been considered as a major part of sustainable buildings for saving electric lighting and providing benefits such as, health, visual comfort, and productivity of the occupants.
Irfan
doaj   +1 more source

Mining Security Pipe© (TSM)© with Underground GPS Global© (RSPG)© Escape Security Device in Underground Mining [PDF]

open access: yesManagement Systems in Production Engineering, 2016
TSM is escape pipe in case of collapse of terrain. The TSM is a passive security tool placed underground to connect the work area with secure area (mining gallery mainly).
Giménez Rafael Barrionuevo
doaj   +2 more sources

Pipe Defect Detection and Reconstruction Based on 3D Points Acquired by the Circular Structured Light Vision

open access: yesAdvances in Mechanical Engineering, 2013
The inspection of pipe inside is very important so as to ensure the safety of pipe transmission. The pipe defect detection method based on inside 3D points acquired by circle structured light vision system was discussed in this paper.
Wang Ying, Jin Cuiyun, Zhang Yanhui
doaj   +1 more source

Predicting the Instability Trajectory of an Obliquely Loaded Pipeline on a Clayey Seabed

open access: yesJournal of Marine Science and Engineering, 2022
Predicting the instability trajectory of an obliquely loaded pipeline on the seabed is vital for the global buckling assessment. To numerically investigate the obliquely loaded pipe–soil interactions, a plane strain elastoplastic finite element model ...
Ning Wang, Wengang Qi, Fuping Gao
doaj   +1 more source

A novel vaginal manipulator for identifying vaginal canal separation line by visible and near-infrared transillumination light: PHARUS Pipe

open access: yesPhotodiagnosis and Photodynamic Therapy
Introduction: In total laparoscopic hysterectomy, a uterine manipulator with transillumination functionality is often employed as an instrument to visualize the vaginal canal demarcation line.
Akiko Yoshida Ueno   +4 more
doaj   +1 more source

Daylight Utilization with Light Pipe in Farm Animal Production: A Simulation Approach

open access: yesJournal of Daylighting, 2016
Light pipes offer a passive way to bring daylight inside deep buildings, such as agricultural buildings. However, the lack of reliable performance predictability methods for light pipes represents a major obstacle preventing their widespread use.
Alejandro Pacheco Diéguez’   +3 more
doaj   +1 more source

A Simultaneous Pipe-Attribute and PIG-Pose Estimation (SPPE) Using 3-D Point Cloud in Compressible Gas Pipelines

open access: yesSensors, 2023
An accurate estimation of pipe attributes, pose of pipeline inspection gauge (PIG), and downstream pipeline topology is essential for successful in-line inspection (ILI) of underground compressible gas pipelines.
Hoa-Hung Nguyen   +2 more
doaj   +1 more source

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