Results 101 to 110 of about 13,372,123 (291)

Structural studies and functional engineering of NanX: an anhydro‐sialic acid transporter from Escherichia coli

open access: yesFEBS Open Bio, EarlyView.
Biophysical characterisation shows that NanX, a membrane transport protein from the major facilitator superfamily (MFS), forms both monomers and dimers after purification. AlphaFold modelling and substrate docking provide information on residues likely involved in substrate recognition for NanX and another MFS member, NanT.
Michael C. Newton‐Vesty   +13 more
wiley   +1 more source

Pre-evaluation on surface profile in turning process based on cutting parameters [PDF]

open access: yes, 2009
Traditional online or in-process surface profile (quality) evaluation (prediction) needs to integrate cutting parameters and several in-process factors (vibration, machine dynamics, tool wear, etc) for high accuracy.
MA, Ning   +3 more
core   +1 more source

Numerical simulation of rock breaking by PDC bit in hot dry rocks

open access: yesNatural Gas Industry B, 2019
Penetrating through hot dry rocks for geothermal resources with high geothermal gradients, high degrees of hardness and abrasivity will be extremely difficult, and a reasonable tooth distribution is a key factor to improve its rock-breaking efficiency ...
Xiaohua Zhu, Zhaowang Dan
doaj   +1 more source

Recent insights into the molecular mechanism of ubiquinol oxidation by cytochrome bc1

open access: yesFEBS Open Bio, EarlyView.
The review reflects on the mechanism of the catalytic reaction in cytochrome bc1: the electron bifurcation that involves the separation of two electrons derived from the quinol oxidation to opposite sides of the enzyme across the membrane. This review summarizes the long‐standing effort to understand the mechanism of quinol oxidation catalyzed by ...
Anna Wójcik‐Augustyn   +2 more
wiley   +1 more source

Development of a Laboratory-Integrated Microwave-Assisted Cutting Machine and Its Use in Carbonate Rocks

open access: yesApplied Sciences
Full-face tunnel boring machines (TBMs) can be used to excavate hard rocks, but there are still significant issues with low advance rate and high cutter wear. However, roadheaders and other mechanical excavators are unable to cut hard rocks.
Masoud Rostami Ghabankandi   +5 more
doaj   +1 more source

Towards specific cutting energy analysis in the machining of Inconel 601 alloy under sustainable cooling conditions

open access: yesJournal of Materials Research and Technology, 2023
M. Korkmaz   +7 more
semanticscholar   +1 more source

Chronobiology of Cancer: How Aging Fuels Oncogenesis at the Molecular Level

open access: yesAging and Cancer, EarlyView.
This graphical abstract illustrates the key biological pathways linking aging with cancer development and progression. In the upper left, cumulative exposure to ultraviolet radiation, toxins, and reactive oxygen species (ROS) causes DNA damage and genomic instability, whereas age‐related decline in repair mechanisms, such as ATM/ATR, BER, and NER ...
Anu Singh, Aroonima Misra, Sufian Zaheer
wiley   +1 more source

Energy efficiency identification and surface roughness prediction using cutting force signal for computer numerical controlled machine systems

open access: yesScientific Reports
The energy efficiency identification of machining process plays an indispensable part in achieving energy-efficient manufacturing and improving energy utilization as well as productivity and surface quality.
Chunhua Feng   +4 more
doaj   +1 more source

Trade-off analysis of machinability of steel alloy AISI 304L using Taguchi-grey integrated approach

open access: yesJournal of Materials Research and Technology
Energy analysis during machine tool operations in manufacturing sector is becoming one of the prominent research avenues due to rising energy costs and environmental impact brought on by high energy consumption.
Faisal Abbas   +7 more
doaj   +1 more source

Analysis of the effect of the cutting speed on specific cutting energy in turning process

open access: yesIOP Conference Series: Materials Science and Engineering, 2019
In machining process, the cutting temperature and cutting force produced is an important parameter need to be control or reduce. The cutting temperature and cutting force will effected the tool life thus effected the tool cost.
Ismail Thamrin
semanticscholar   +1 more source

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