Results 61 to 70 of about 2,747 (242)

Speed control method of scraper conveyor based on load prediction and energy consumption optimization

Meitan kexue jishu
Aiming at the problems of energy waste and low transportation efficiency caused by continuous high-speed operation of scraper conveyor in fully mechanized mining face, this paper combined with two-way coal cutting technology, systematically analyzed the ...
Weibing WANG, Jialu LUO, Lai LI, Shuanfeng ZHAO, Zhengxiong LU, Kaifang LI   +5 more
doaj   +1 more source

Composite Sliding Mode Control of a Permanent Magnet Direct-Driven System For a Mining Scraper Conveyor

IEEE Access, 2017
A composite sliding mode control based on the load characteristic of the permanent magnet direct-driven system is presented for a mining scraper conveyor.
En Lu, Wei Li, Xuefeng Yang, Shaoyi Xu
doaj   +1 more source

Interpreting of the economic effectiveness of conveyors used for transporting seeds along the curvilinear tracks [PDF]

, 2014
Запропоновано методику техніко-економічного обґрунтування транспортно-технологічних механізмів (ТТМ), що проводиться на основі їх порівняльного оцінювання з типовими представниками машин, які здійснюють однотипні операції й несуттєво відрізняються за ...
Hevko, Iv., Lyashuk, O., Tarasyuk, Y., Ляшук, Олег Леонідович, Тарасюк, Ю.   +4 more
core  

Finite Element Analysis of Vibration and Noise of Scraper Conveyor [PDF]

Proceedings of the 2015 International Conference on Industrial Technology and Management Science, 2015
The noise pollution produced by the scraper conveyor affects the working environment seriously. Based on a certain type of the scraper conveyor transmission system as a research object, using the finite element analysis software ANSYS for modal analysis, the results suggested that the natural frequencies of scraper and chute were the same in the 15 th ...
Hanwu Liu, Yu Sun, Liran Xu
openaire   +1 more source

If‐Conditionals as Arguments in Nineteenth‐Century Women's Instructive Writing in English

Transactions of the Philological Society, EarlyView.
Abstract This article seeks to analyse the if‐conditionals in a corpus of cookery recipes written by women, namely the Corpus of Women's Instructive Texts in English (1800–1899) (CoWITE19). These texts are original texts written by British and American women between 1800 and 1850.
Margarita‐Esther Sánchez‐Cuervo
wiley   +1 more source

Design of wireless detection system of driving device of scraper conveyor

Gong-kuang zidonghua, 2014
In view of problems of complex wiring and bad reliability because current driving device of scraper conveyor uses wired detection mode, a wireless detection system of driving device of scraper conveyor based on RFID technology was designed.
ZHAO Zheqian, ZHAO Sihai, HU Yuwei, NIE Zhe   +3 more
doaj   +1 more source

Снижение токовых и динамических нагрузок в регулируемом асинхронном электроприводе шахтного скребкового конвейера при заклинивании цепи [PDF]

, 2013
Предложен способ снижения динамических нагрузок в регулируемом асинхронном электроприводе скребкового конвейера без гидромуфты при заклинивании цепи. По результатам компьютерного моделирования показана работоспособность способа, получена зависимость ...
Осичев, Александр Васильевич, Ткаченко, Андрей Александрович   +1 more
core  

The McKinleys of Punch: Politics and the Press in Melbourne, 1870s to 1920s

Australian Journal of Politics &History, EarlyView.
This article re‐examines the Melbourne Punch (1855–1925; known simply as Punch from 1900) as a political weapon in the cut‐and‐thrust of Victorian, local, and national politics, in the hands of its longest‐serving, but least‐known proprietor, Alexander McKinley (1848–1927).
Richard Scully
wiley   +1 more source

Two-stage gasification: fine characterisation of wood chips pyrolysis step in a continuous fixed bed reactor [PDF]

, 2011
Two-stage gasification is a proven technology for combined heat and power generation, particularly as it enables the production of a high quality, virtually tar-free gas.
Commandre, Jean-Michel, Dufourny, Adrien, Martin, Eric, Milhe, Mathieu, Van de Steene, Laurent   +4 more
core  

Lithic analysis in African archaeology: Advances and key themes

Archaeometry, EarlyView.
Abstract Stone artifacts (lithics) preserve for extended periods; thus they are key evidence for probing the evolution of human technological behaviors. Africa boasts the oldest record of stone artifacts, spanning 3.3 Ma, rare instances of ethnographic stone tool‐making, and stone tool archives from diverse ecological settings, making it an anchor for ...
Deborah I. Olszewski, Amanuel Beyin, Justin Pargeter   +2 more
wiley   +1 more source