Results 21 to 30 of about 18,274 (156)

Proposal and effectiveness verification of rail adjustment optimization method for elevator installation

Nihon Kikai Gakkai ronbunshu, 2023
In the installation process of an elevator, work performs to correct the bending of the rail in order to suppress the lateral vibration of the car due to the irregularity of the guide rail.
Yutaka MARUYAMA, Yoshihiko NAKADA, Yasufumi TAKAKUSAKI, Yoshinobu ISHIKAWA   +3 more
doaj   +1 more source

Estimation of maximum displacement of elevator rope while car driving during earthquake using a single displacement sensor

Nihon Kikai Gakkai ronbunshu
During an earthquake, elevator operation is restricted by controlled operation because the elevator ropes resonate with the building sway. In this paper, based on the assumption that the elevator can operate even in the event of an earthquake if the ...
Ryoji NAKANISHI, Nanako MIURA, Tetsu OGAWA, Kazuhiro TANAKA, Taku YOSHIDA   +4 more
doaj   +1 more source

Influence of the combination of big data technology on the Spark platform with deep learning on elevator safety monitoring efficiency.

PLoS ONE, 2020
To effectively minimize elevator safety accidents, big data technology is combined with deep learning technology based on the Spark platform. This study first introduces the relevant theories of elevator safety monitoring technology, namely big data ...
Jie Yu, Bo Hu
doaj   +1 more source

Physics-Informed Neural Network-Based Elevator Degradation Diagnosis and Early Warning

Sensors
With the continuous growth of urban building density and elevator deployment, the reliability, maintenance, and degradation risk warning of elevator systems have attracted increasing attention. Conventional monitoring methods based on fixed thresholds or
Ren Li, Gang Xiao, Yuanming Zhang, Yaxing Ren, Fangfang Yao, Xiaoying Ru, Zhenhao Li   +6 more
doaj   +1 more source

Elevating sampling [PDF]

Lab Chip, 2014
This perspective highlights challenges and opportunities in the collection and preparation of a target from real-world sources for subsequent processing in micro- and nanofluidic systems.
Joseph M, Labuz, Shuichi, Takayama
openaire   +2 more sources

LightWaveNet: a lightweight wavelet-enhanced high-low-frequency-aware network with multi-stage supervision for rice disease recognition

Frontiers in Plant Science
IntroductionAccurate identification of rice diseases is critical for ensuring food security and advancing intelligent agricultural management. However, existing deep learning methods, while achieving high accuracy, often involve heavy computational costs
Weiqiang Pi, Tao Zhang, Rongyang Wang, Zhongyou Zhou, Guowei Ma, Yong Wang   +5 more
doaj   +1 more source

Tension fluctuation analysis of main ropes for 2:1 roping elevator by variations in groove depth of traction machine

Mechanical Engineering Journal
As buildings have become taller in recent years, elevators, which provide vertical transportation within buildings, are becoming larger in capacity and tend to have longer lifting strokes. Generally, the rope-type elevator has multiple main ropes. As the
Takayoshi KAMADA, Ayato SHIBAYAMA, Kazuhiro TANAKA, Tetsu OGAWA, Taku YOSHIDA   +4 more
doaj   +1 more source

Non-Contact and Non-Intrusive Add-on IoT Device for Wireless Remote Elevator Control

Applied Sciences, 2023
This work proposes an Internet-of-Things (IoT) device for remote elevator control. The new contribution of this proposal to the state-of-the-art is that it can convert a manually operated elevator into a remote controlled elevator without requiring any ...
Elena Rubies, Ricard Bitriá, Eduard Clotet, Jordi Palacín   +3 more
doaj   +1 more source

Microstructural Synergy of ZrC-NbC Reinforcements and Its Coupled Effects on Mechanical and Dynamic Properties of Titanium Matrix Composites

Metals
In aerospace applications, titanium matrix composites (TMCs) must balance high strength, thermal stability, and vibration resistance. This study investigates the microstructural evolution and multi-property correlations in single-phase ZrC-reinforced ...
Juan Wang, Haijun Zhang, Baiqing Zhou, Zhong Yang   +3 more
doaj   +1 more source

Numerical Coupling Simulation of the Vertical Blowing Suspension Position of Tea Leaves Based on Computational Fluid Dynamics and the Discrete Element Method

HortScience
To provide reference for the design of the air-suction tea sorting device, the coupled numerical simulation model was established by the coupling method of computational fluid dynamics (CFD) and discrete element method (DEM) with tea of different quality
Xu Zhang, Xinyu Zhu, Kai Yu, Rongyang Wang   +3 more
doaj   +1 more source