Results 21 to 30 of about 11,669,741 (301)

Life’s Mechanism

open access: yesLife, 2023
The multifarious internal workings of organisms are difficult to reconcile with a single feature defining a state of ‘being alive’. Indeed, definitions of life rely on emergent properties (growth, capacity to evolve, agency) only symptomatic of intrinsic functioning. Empirical studies demonstrate that biomolecules including ratcheting/rotating enzymes,
openaire   +5 more sources

Mechanical Thrombectomy

open access: yesAnnals of Indian Academy of Neurology, 2022
Large vessel occlusion stroke contributes to disability and mortality out of proportion to its incidence. Over time it was noted that intravenous thrombolysis alone was not sufficient for this stroke type. Slowly, endovascular approach and mechanical clot retrieval have come out to be the biggest advances in the field of ...
Chintan Prajapati   +3 more
openaire   +3 more sources

Reaction Mechanisms with Exotic Nuclei [PDF]

open access: yes, 2003
This talk examines a number of reaction mechanisms for scattering initiated by an exotic projectile. Comparisons are made with recent experimental data, in order to extract information on the peculiarity of the nuclear structure under extreme conditions ...
Bonaccorso, Angela
core   +2 more sources

Surface micromachined mechanisms and micromotors [PDF]

open access: yes, 1991
Electric micromotors are sub-millimeter sized actuators capable of unrestrained motion in at least one degree of freedom. Polysilicon surface micromachining using heavily phosphorus-doped LPCVD polysilicon for the structural material, LPCVD silicon ...
Mehregany, Mehran, Tai, Yu-Chong
core   +1 more source

Analysis of PARP inhibitor toxicity by multidimensional fluorescence microscopy reveals mechanisms of sensitivity and resistance

open access: yesNature Communications, 2018
Methods to study anti-cancer drugs cytotoxicity are often low throughput and rely on population average. Here the authors present an automated image-based cytometry method to quantify multiple cytotoxicity parameters in single cells, and use it to study ...
Jone Michelena   +5 more
doaj   +1 more source

Полиномиальные аппроксимации некоторых функций активации нейронных сетей

open access: yesИнформатика и автоматизация, 2022
Активное внедрение систем машинного обучения ставит актуальную задачу обеспечения их защиты от различных типов атак, направленных на нарушение свойств конфиденциальности, целостности и доступности как обрабатываемых данных, так и обучаемых моделей. Одним
Grigory Marshalko, Julia Trufanova
doaj   +1 more source

Calculation Model of Relative Permeability in Tight Sandstone Gas Reservoir with Stress Sensitivity

open access: yesGeofluids, 2021
During the development of tight gas reservoir, the irreducible water saturation, rock permeability, and relative permeability change with formation pressure, which has a significant impact on well production.
Jin Yan   +4 more
doaj   +1 more source

Mechanisms for Stable Sonoluminescence [PDF]

open access: yes, 1995
A gas bubble trapped in water by an oscillating acoustic field is expected to either shrink or grow on a diffusive timescale, depending on the forcing strength and the bubble size.
B. P. Barber   +26 more
core   +8 more sources

Advances in the basic study of lacustrine shale evolution and shale oil accumulation

open access: yesShiyou shiyan dizhi, 2020
This manuscript provides a review of the recent advances in the study of fundamental processes and geological drivers involved in the lacustrine shale deposition, burial diagenesis, thermal maturation and in-situ oil accumulation, aimed at identifying ...
Maowen LI   +10 more
doaj   +1 more source

3D-porous-GAN: a high-performance 3D GAN for digital core reconstruction from a single 3D image

open access: yesJournal of Petroleum Exploration and Production Technology, 2023
The 3D digital rock technology is extensively utilized in analyzing rock physical properties, reservoir modeling, and other related fields. This technology enables the visualization, quantification, and analysis of microstructures in rock cores, leading ...
Xiangchao Shi   +3 more
doaj   +1 more source

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