Results 81 to 90 of about 2,290,362 (336)

Research on Fidelity Performance of Coring Bits during Drilling and Cutting in Deep Extreme Environments

Applied Sciences, 2023
Deep rock formations in extreme environments are characterized by complex working conditions, various structures, high hardness, and high resistance to compression. However, existing coring techniques leave the cores of deep rock formations vulnerable to
Fuda Sun, Ling Chen, Yanyan Li, Zhehao Wang, Bin Xiao, Zexiang Chen   +5 more
doaj   +1 more source

Application of Phanerochaete Chrysosporium on Biochemimechanical Pulping Process of Terentang Wood (Campnosperma Auriculata Hook.f) [PDF]

, 2016
Terentang wood (Campnosperma auriculata Hook.f) is relatively low in specific gravity (0.3), hence its utilization as pulp by chemi-mechanical is an alternative process.
Aprianis, Y. (Yeni), Irawati, D. (Denny), Marsoem, S. N. (Sri)   +2 more
core   +2 more sources

An upstream open reading frame regulates expression of the mitochondrial protein Slm35 and mitophagy flux

FEBS Letters, EarlyView.
This study reveals how the mitochondrial protein Slm35 is regulated in Saccharomyces cerevisiae. The authors identify stress‐responsive DNA elements and two upstream open reading frames (uORFs) in the 5′ untranslated region of SLM35. One uORF restricts translation, and its mutation increases Slm35 protein levels and mitophagy.
Hernán Romo‐Casanueva, Ariann E. Mendoza‐Martínez, P. Abril Medina‐Flores, Carlos Campero‐Basaldua, Alexander DeLuna, Soledad Funes   +5 more
wiley   +1 more source

Flat Energy Bands within Antiphase and Twin Boundaries and at Open Edges in Topological Materials

, 2019
A model for two-dimensional electronic, photonic, and mechanical metamaterial systems is presented, which has flat one-dimensional zero-mode energy bands and stable localized states of a topological origin confined within twin boundaries, antiphase ...
Ahn, Keun Hyuk, Prodan, Emil, Zhu, Linghua   +2 more
core   +1 more source

Investigating the Effects of Mechanical Properties of Rocks on Specific Energy and Penetration Rate of Borehole Drilling

Geotechnical and Geological Engineering, 2020
This paper deals with the analysis of effects of mechanical properties of rock on penetration rate and specific energy. Five specimens were collected from the four locations in Federal capital territory, Abuja.
Peter Kolapo
semanticscholar   +1 more source

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

FEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka, Yuxi Liu, Stefano Maggi, Debnath Ghosal, Jue Wang, Prashant P. Damke, Stephen D. Carter, Wei Zhao, Sukhithasri Vijayrajratnam, Joseph P. Vogel, Carrie L. Shaffer, Grant J. Jensen   +11 more
wiley   +1 more source

Role of the kinematics of probing electrons in electron energy-loss spectroscopy of solid surfaces

, 2015
Inelastic scattering of electrons incident on a solid surface is determined by the two properties: (i) electronic response of the target system and (ii) the detailed quantum-mechanical motion of the projectile electron inside and in the vicinity of the ...
Krasovskii, E. E., Nazarov, V. U., Silkin, V. M.   +2 more
core   +1 more source

Clues on black hole feedback from simulated and observed X-ray properties of elliptical galaxies [PDF]

, 2009
The centers of elliptical galaxies host supermassive black holes that significantly affect the surrounding interstellar medium through feedback resulting from the accretion process.
Blandford, Chartas, Ciotti, Ciotti, Crenshaw, David, Di Matteo, Di Matteo, Diehl, Diehl, Fabian, Ferrarese, Fukazawa, Gallo, Gebhardt, Ho, Hopkins, J.P. Ostriker, Kim, L. Ciotti, Loewenstein, Machacek, Mahadevan, Mathews, Merloni, Narayan, O’Sullivan, O’Sullivan, O’Sullivan, Pellegrini, Pellegrini, Pellegrini, Pellegrini, Pellegrini, Peterson, Proga, S. Pellegrini, Sazonov, Soria, Trinchieri, Vedder   +40 more
core   +1 more source

Plasma activation mechanisms governed by specific energy input: Potential and perspectives

Plasma Processes and Polymers, 2023
AbstractIn a low‐temperature plasma, the electrons pick up energy from the electric field in collisions with atoms and molecules, gaining high kinetic energy that must be sufficient for ionizing reactions to sustain the plasma. For molecular gases, an average energy per heavy gas particle is thus available in the plasma, the specific energy input ...
openaire   +1 more source

The influence of specific mechanical energy on cornmeal viscosity measured by an on-line system during twin-screw extrusion

, 1999
The influence of specific mechanical energy (SME) on cornmeal viscosity during the twin-screw extrusion at feed moisture contents of 25 and 30% and screw speeds in the range from 100 to 500 rpm was measured.
Y. K. Chang, F. Martínez-Bustos, T. Park, J. Kokini   +3 more
semanticscholar   +1 more source