Results 61 to 70 of about 485,064 (256)

A Remote Monitoring and Diagnosis Method Based on Four-Layer IoT Frame Perception

open access: yesIEEE Access, 2019
In this study, a real-time remote monitoring and fault diagnosis method has been developed based on the Internet of Things (IoT) frame perception, and successfully applied to a mine hoist system. The proposed method combines the sensor technology, online
Juanli Li   +6 more
doaj   +1 more source

Improving Low-Resource Chinese Named Entity Recognition Using Bidirectional Encoder Representation from Transformers and Lexicon Adapter

open access: yesApplied Sciences, 2023
Due to their individual advantages, the integration of lexicon information and pre-trained models like BERT has been widely adopted in Chinese sequence labeling tasks.
Xiaochao Dang   +4 more
doaj   +1 more source

Underground mining of aggregates. Main report [PDF]

open access: yes, 2010
This report examines the economic feasibility of underground mining for crushed rock aggregates in the UK, but particularly in the London, South East and East of England regions (the South East area of England).
Brown, Teresa J.   +7 more
core  

The clashing of in situ and pre‐cast technologies—Western trends and local traditions in concrete engineering shaping shell construction in 20th‐century Hungary

open access: yesStructural Concrete, EarlyView.
Abstract After a blossoming pre‐World War II (WWII) period, the concrete construction industry in then‐socialist Hungary existed in a relative isolation from the Western World during the mid‐20th century. In this paper, we focus on the body of work of one of the then newly established state‐owned design offices, IPARTERV, to show how the isolation ...
Orsolya Gáspár, Péter Haba
wiley   +1 more source

Comparing isoflurane and desflurane: A prospective randomised blinded clinical trial in horses undergoing elective surgery

open access: yesVeterinary Record, EarlyView.
Abstract Background The recovery period is associated with the greatest risk of injury for horses undergoing anaesthesia. Recovery quality and duration can be influenced by the volatile agent. Methods This prospective, randomised blinded clinical investigation recruited 101 healthy client‐owned horses undergoing elective surgery at one UK equine ...
Kate White, John Hird, Polly Taylor
wiley   +1 more source

CFD Simulations of the New Construction of Light Brattice Wall for Mine Shafts

open access: yesEnergies, 2021
Brattice walls in mine shafts are used for various purposes, for example, permanent brattice walls can be used to separate ventilation sections. They can be also used in the case of modernization of the hoisting system, as it is in Shaft no.
Tomasz Rokita   +3 more
doaj   +1 more source

A ‘Wholly Unjustifiable Treatment of British Subject’? The Detention of W. T. Goode in the Baltic, 1919

open access: yesHistory, EarlyView.
Abstract In the summer of 1919, W. T. Goode, the Manchester Guardian’s special correspondent in Russia and the Baltic, was arrested in the Estonian capital Tallinn and briefly detained aboard a British warship. Goode's detention caused a furore, leading to accusations of kidnap, heated commentary in the press and questions in parliament.
Colin Storer
wiley   +1 more source

Application of Variable Frequency Speed Regulation System Based on Redundance PLC Control in Mine Hoist

open access: yesKongzhi Yu Xinxi Jishu, 2018
Mine hoist is a key device for mine production, the design of its drive system can directly affect the efficiency and safety of mine production. It proposed an automatic mine hoist AC speed regulating system based on redundancy PLC control algorithm, in ...
LIU Yihong, JING Huabing
doaj  

Unipolar deviation control algorithm and its application in mine hoist mechanical braking system

open access: yesGong-kuang zidonghua, 2016
A kind of unipolar deviation control algorithm was proposed and applied to mine hoist mechanical braking system. The algorithm can change a feedback control system from no error system to error system, which is beneficial to improve system stability and ...
DENG Shijian   +4 more
doaj   +1 more source

Dynamic analyses of hoisting ropes in a multi-rope friction mine hoist and determination of proper hoisting parameters [PDF]

open access: yesJournal of Vibroengineering, 2016
To avoid the failure of rope collision caused by large amplitude transverse vibrations, this study aimed to determine proper hoisting parameters of a multi-rope friction mine hoist. To explore dynamic behaviors of the hoisting catenaries with constant length and the vertical hoisting ropes with variable length which are both subjected to the periodic ...
Yansong Ma, Xingming Xiao
openaire   +1 more source

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