Results 51 to 60 of about 5,765,502 (356)

Rescue Path Planning and Simulation Analysis of Mining Robot Based on Improved A* Algorithm

open access: yesTaiyuan Ligong Daxue xuebao
Purposes The situation of post-disaster site of coal mine underground is complex. Aiming at the fact that traditional A* algorithm-based coal mine robot rescue path planning bears path insecurity, low efficiency, and other problems, and by combining with
Biying DUAN   +7 more
doaj   +1 more source

In-Situ Single Particle Reconstruction Reveals 3D Evolution of PtNi Nanocatalysts During Heating [PDF]

open access: yesarXiv, 2023
Tailoring nanoparticles composition and morphology is of particular interest for improving their performance for catalysis. A challenge of this approach is that the nanoparticles optimized initial structure often changes during use. Visualizing the three dimensional (3D) structural transformation in situ is therefore critical, but often prohibitively ...
arxiv  

Effects of preconditioning and extrusion of linseed on the ruminal biohydrogenation of fatty acids. 2. In vitro and in situ studies [PDF]

open access: yes, 2006
The extent and/or intermediates of ruminal biohydrogenation (BH) of fatty acids (FA) were investigated in vitro and in situ using a raw, pre-conditioned or extruded blend of linseed and wheat bran (70:30).
Akraim, Fowad   +3 more
core   +1 more source

miRNA‐29 regulates epidermal and mesenchymal functions in skin repair

open access: yesFEBS Letters, EarlyView.
miRNA‐29 inhibits cell‐to‐cell and cell‐to‐matrix adhesion by silencing mRNA targets. Adhesion is controlled by complex interactions between many types of molecules coded by mRNAs. This is crucial for keeping together the layers of the skin and for regenerating the skin after wounding.
Lalitha Thiagarajan   +10 more
wiley   +1 more source

Effect of long reaction distance on gas composition from organic-rich shale pyrolysis under high-temperature steam environment

open access: yesInternational Journal of Coal Science & Technology
When high-temperature steam is used as a medium to pyrolyze organic-rich shale, water steam not only acts as heat transfer but also participates in the chemical reaction of organic matter pyrolysis, thus affecting the generation law and release ...
Lei Wang   +6 more
doaj   +1 more source

Lessons from the Auriga discs: The hunt for the Milky Way's ex-situ disc is not yet over [PDF]

open access: yes, 2017
We characterize the contribution from accreted material to the galactic discs of the Auriga Project, a set of high resolution magnetohydrodynamic cosmological simulations of late-type galaxies performed with the moving-mesh code AREPO. Our goal is to explore whether a significant accreted (or ex-situ) stellar component in the Milky Way disc could be ...
arxiv   +1 more source

Influence of the Preparation Process on Microstructure, Critical Current Density and Tc of MgB2 Powder-In-Tube Wires [PDF]

open access: yesIEEE Transactions of Applied Superconductivity 13 (2003) 3203, 2002
MgB2 wires and tapes suffer from a limitation of the transport current densities, especially at low field, due to an unsufficient thermal stabilization caused by hot spots from a non-homogeneous microstructure, the presence of secondary phases and voids.
arxiv   +1 more source

Autophagy in cancer and protein conformational disorders

open access: yesFEBS Letters, EarlyView.
Autophagy plays a crucial role in numerous biological processes, including protein and organelle quality control, development, immunity, and metabolism. Hence, dysregulation or mutations in autophagy‐related genes have been implicated in a wide range of human diseases.
Sergio Attanasio
wiley   +1 more source

Orthogonal optimization of the ratio of nano-silica sol-EVA-fly ash cement-based composite slurry and the effect on its physical properties

open access: yesMeitan xuebao
To address the problem that traditional cement-based slurry materials cannot meet the actual demand for grouting and reinforcement of large deformation roadways in coal mines, some high-performance composite slurry materials are obtained by modifying ...
Yuxu SHEN   +8 more
doaj   +1 more source

Flexible Pressure Sensor Array with Multi-Channel Wireless Readout Chip

open access: yesSensors, 2022
Flexible sensor arrays are widely used for wearable physiological signal recording applications. A high density sensor array requires the signal readout to be compatible with multiple channels.
Haohan Wangxu   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy