Results 51 to 60 of about 485,064 (256)

A method for bearing fault diagnosis of mine hoist using convolutional attention autoencoder

, 2021
In view of the complex environment and frequent faults in the actual operation of mine hoist, a fault diagnosis method based on Convolution Attention Autoencoder (CAAE) is proposed through theoretical analysis and experimental verification to improve ...
J. Zhang, Ke Yang, Yuanyuan Jiang, Ling Xia   +3 more
semanticscholar   +1 more source

Anthropologist, heal thyself: Toward an anthropology of healing through relational interbeing

Feminist Anthropology, EarlyView.
Abstract I call for an anthropology that confronts its own woundedness. Anthropologists often bear witness to suffering but rarely examine how our own grief, trauma, and institutional distress shape the affective tone of our work. Drawing on fieldwork with Runa (Quechua) women affected by forced sterilization in Peru and guided by my collaborator and ...
Lucía Isabel Stavig
wiley   +1 more source

Dynamic Monitoring the Friction Transmission of Mine Hoist Using Triboelectric Nanogenerators Self‐Powered Sensor Based on Different Surface Structures Embedded in the Friction Lining

Advanced Engineering Materials
The friction lining is a critical component of the friction hoist, serving as the driving force for lifting through its interaction with the wire rope. Monitoring the friction state between the wire rope and the friction lining is crucial as it directly ...
Yu Guo, Cunao Feng, Qianru Cao, Jie Xiao, Xinyu Jiang, Xinyue Zhang, Kai Chen, Xiaowei Li, Dekun Zhang   +8 more
semanticscholar   +1 more source

Modeling of induction motor drive of a mine hoist on the basis of a doubly-fed electric machine

E3S Web of Conferences, 2021
One of the options for the modernization of existing hoist electric drives with a wound-rotor induction motor is its starting according to the scheme of a doubly-fed machine. For this purpose, a frequency converter with an adjustable amplitude, frequency
V. Ostrovlyanchik, I. Popolzin, V. Kubarev, Dabin Qi   +3 more
semanticscholar   +1 more source

Practices, barriers, and opportunities for dietitians‐nutrionists in critical care in latin america: A cross‐sectional study

Journal of Parenteral and Enteral Nutrition, EarlyView.
Abstract Background Dietitians–nutritionists (DNs) play a key role in intensive care units (ICUs), yet their scope of practice varies across settings. This study aimed to describe the professional practices of DNs working in ICUs in Latin America and to identify factors associated with their level of professional activity.
Mirta Crovetto, Solange Parra‐Soto, Samuel Durán‐Aguero, Karla Cordón‐Arrivillaga, Marisa Canicoba, Leslie Landaeta‐Díaz, Jhon Jairo Bejarano, Saby Mauricio, Edna J. Nava‐González, Valeria Carpio‐Arias, Sheila Cerezo, Sonia Ivankovich, Alfonsina Ortiz, Beatriz Nuñez‐Martinez, Eliana Romina Meza‐Miranda, Gertrudis M Adrianza de Baptista, Marisela Morales, Melissa Miranda‐Durán, Frank Carrera‐Gil   +18 more
wiley   +1 more source

Single Smooth Waveform Command‐Shaping Control of Overhead Crane Systems Utilizing Two‐Stage Acceleration–Deceleration Profile for Short‐Moving Point‐to‐Point Maneuver

International Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT Modern industrial demand for efficient material handling in confined spaces has driven the need for overhead cranes capable of short‐distance point‐to‐point maneuvers without compromising payload stability. Conventional three‐stage shaper profiles, experiencing acceleration, cruising, and deceleration, become inefficient or infeasible for ...
Mohammed Alfares, Jasem Baroon, Khaled Alhazza   +2 more
wiley   +1 more source

Alloy Qualification for Producing Quench and Tempered Plate Steels with Extra‐Heavy Gage

steel research international, EarlyView.
This study develops alloy concepts for ultraheavy steel plates (>100 mm) with ≥690 MPa yield strength. Through dilatometry and Jominy testing, the effects of Mo, Ni, and B on hardenability are quantified. A synergy between 0.5% Mo and 0.5%–1.0% Ni ensures core strength at low cooling rates, while boron microalloying suppresses ferrite and promotes ...
Xabier Azpeitia, Unai Mayo, Nerea Isasti, Eric Detemple, Hardy Mohrbacher, Pello Uranga   +5 more
wiley   +1 more source

Optimised dragline planning model [PDF]

, 1993
The presenting company provided data for typical operating parameters used in dragline operation. The problem for the Study Group was to investigate whether an optimal model of dragline operation could be developed.
Sier, D.
core  

Influence of an Electromagnetic Field on Direct Reduction of Iron Oxide Using Hydrogen as a Reducing Agent

steel research international, EarlyView.
This study investigates the reduction of pure iron oxides and industrial iron ore using hydrogen gas as a reducing agent. Additionally, to determine whether the reduction process can be accelerated, electromagnetic fields of 50 Hz and 25 kHz were applied.
Mykyta Levchenko, Oleksandr Gryshyn, Oleksandr Velychko, Oleksandr Grek, Anzhela Nadtochiy, Olena Volkova   +5 more
wiley   +1 more source

Design of health diagnosis system of mine hoist

Gong-kuang zidonghua, 2013
A health diagnosis system of mine hoist was designed taking LabVIEW software as platform. The system uses sensor to collect multi-channel data continuously, so as to realize real-time on-line monitoring for mine hoist; uses strong signal acquisition and ...
ZHANG Guo-dong, QI Rui-mi
doaj