Results 31 to 40 of about 2,182 (220)

TOF underground accurate positioning technology based on message multiplexing

Gong-kuang zidonghua, 2019
In view of problems that symmetric-double-sided two-way ranging (SDS-TWR) method had low ranging efficiency and poor expansibility and there was still room for improvement in the ranging efficiency and positioning system capacity of asymmetric-double ...
CHEN Kang, WANG Jun, BAO Jianjun, WANG Wei, XU Shouquan, CHEN Nan   +5 more
doaj   +1 more source

The effects of the Two-Week Rule on NHS colorectal cancer diagnostic services: A systematic literature review

BMC Health Services Research, 2006
Background The Two-Week Rule (TWR) was introduced to ensure that all patients with a suspected colorectal cancer (CRC) saw a hospital specialist within 14 days of an urgent GP referral.
Hutchings Hayley A, Thorne Kymberley, Elwyn Glyn   +2 more
doaj   +1 more source

Energy Efficient Space–Time Line Coded Regenerative Two-Way Relay Under Per-Antenna Power Constraints

IEEE Access, 2018
In multiple-input multiple-output (MIMO) systems, per-antenna power constraint (PAPC) has been considered to enhance the power efficiency of the multiple power amplifiers.
Jingon Joung
doaj   +1 more source

Experimental investigation of nanographene mixed in the copper electrodes for electrical discharge machining [PDF]

Engineering and Technology Journal
Nanotechnology in electrode manufacturing is a new technique to enhance the machinability of materials that are difficult to machine using electrical discharge machining (EDM).
Osama Sabbar, Ali Khleif, Baraa Albaghdadi   +2 more
doaj   +1 more source

Influence of graphene coating in electrical discharge machining with an aluminum electrode

Journal of the Mechanical Behavior of Materials, 2023
Since the cost of electrodes in electrical discharge machining (EDM) is usually too high, it leads to a significant increase in the production cost.
Pham Van Dong, Shirguppikar Shailesh, Huu Phan Nguyen, Thangaraj Muthuramalingam, Le Thi Phuong Thanh, Trong Ly Nguyen, Ganachari Vaibhav   +6 more
doaj   +1 more source

Prediction and optimization of tool wear rate during electric discharge machining of Al/Cu/Ni alloy using adaptive neuro-fuzzy inference system

Heliyon, 2020
Aluminum (Al)-copper (Cu)-nickel (Ni) alloy is a versatile material with lightweight and excellent strength. It also possesses properties such as superior corrosion resistance, fatigue strength. These alloys are essential in sectors viz.
Mangesh Phate, Aditya Bendale, Shraddha Toney, Vikas Phate   +3 more
doaj   +1 more source

ALTERNATYWIZM, DYSJUNKTYWIZM I PLURALIZM DOŚWIADCZENIOWY [PDF]

Studia Humanistyczne AGH, 2018
W artykule krótko przedstawiono aksjomaty teorii wielości rzeczywistości Leona Chwistka (TWR), stanowiącej podstawę jego teorii teorii wielości rzeczywistości w sztuce (TWRS).
Paweł Jakub Zięba
doaj   +1 more source

Investigation of the Effect of Nano Powder Mixed Dielectric on EDM Process [PDF]

Engineering and Technology Journal, 2020
In this paper, Artificial Neural Network was adopted to predict the effect of current, the concentration of aluminum oxide (Al2O3) and graphite Nanopowders in dielectric fluid for the machining of Carbon steel 304 using Electrical Discharge Machining ...
Rasha R. Elias
doaj   +1 more source

Research on mine personnel positioning method based on time range

Gong-kuang zidonghua, 2018
Four kinds of mine personnel positioning methods based on time range were researched, namely TOA, TWR, SDS-TWR and TDOA positioning methods, they are less influenced by roadway environment and suitable for mine personnel precise positioning.TOA ...
SUN Zhexing
doaj   +1 more source

LEONA CHWISTKA TEORIA WIELOŚCI RZECZYWISTOŚCI W SZTUCE [PDF]

Studia Humanistyczne AGH, 2018
W artykule krótko przedstawiono aksjomaty teorii wielości rzeczywistości Leona Chwistka (TWR), stanowiącej podstawę jego teorii teorii wielości rzeczywistości w sztuce (TWRS).
Gabriel Bednarz
doaj   +1 more source