Results 121 to 130 of about 6,588,363 (300)

Study on the determination method of excitation load in electrical signal simulation for piezoelectric ultrasonic internal inspection of pipelines

open access: yesScientific Reports
Accurately determining the initial acoustic field excitation load of a piezoelectric ultrasonic probe is essential for simulating electrical signals and calculating wall thickness during ultrasonic internal inspection of pipelines.
Guangli Xu   +4 more
doaj   +1 more source

A Holistic Platform Approach for Developing Robust Pulmonary mRNA Delivery: Integrating Novel Phenolic Acid‐Derived Ionizable Lipids and Device Engineering

open access: yesAdvanced Functional Materials, EarlyView.
An integrated pulmonary mRNA delivery platform combining novel biodegradable syringic acid‐derived ionizable lipids, design‐of‐experiments formulation optimization, and vibrating‐mesh nebulizer engineering enabled stable aerosolization and efficient lung delivery.
Neha Kaushal   +21 more
wiley   +1 more source

Investigation of hydrogen-induced crack propagation in X80 hydrogen-blended pipelines using CPFEM-CZM

open access: yes管道保护
Utilizing the existing natural gas pipeline network for hydrogen-blended transportation is an effective approach to facilitate the large-scale adoption of hydrogen energy. However, hydrogen embrittlement in pipeline steel hinders the rapid development of
Xixian BAI   +5 more
doaj  

An Innovative High-Strength Double-Network Hydrogel for Use as a Drilling Fluid Plugging Agent

open access: yesGels
The problem of wellbore leakage is a key challenge in the petroleum industry, limiting drilling progress and increasing drilling costs. Plugging agents play a role in repairing leaks and fractures; however, traditional plugging materials generally have ...
Yanfeng He   +7 more
doaj   +1 more source

Designing Vanadium‐Based Oxide Electrocatalysts for Water Splitting: Experimental and Mechanistic Insights with Machine Learning

open access: yesAdvanced Functional Materials, EarlyView.
This review establishes structure‐property‐mechanism relationships across six modification strategies for V‐based oxide water‐splitting electrocatalysts: lattice engineering, heteroatom doping, interface engineering, carbon‐based hybridization, morphology engineering, and surface reconstruction and pre‐catalyst design, where dissolution is reframed as ...
Youness El Issmaeli   +4 more
wiley   +1 more source

Experimental study of surfactant flooding system in low permeability reservoir

open access: yesScientific Reports
In view of reservoirs with low pressure, medium porosity, and low permeability in Changqing Oilfield, along with the “double high stage” in the middle and late development featuring a sharp rise in water cut and a low comprehensive water flooding ...
Bai Jinmei   +3 more
doaj   +1 more source

Electron‐Deficient Linkers Enhance H2O2 Electrosynthesis in Covalent Organic Frameworks

open access: yesAdvanced Functional Materials, EarlyView.
Linker π‐conjugation modulates the electronic state of the Ni–N4 centers and their interaction with the key *OOH intermediate while preserving the primary coordination motif. NiPc‐PTDA delivers an H2O2 selectivity of 92% and a production rate of 34.8 mol gcat−1 h−1, highlighting linker electronic properties as a molecular design parameter for NiPc ...
Houting Xie   +7 more
wiley   +1 more source

Pressure Transient Analysis for Vertical Well Drilled in Filled-Cave in Fractured Reservoirs

open access: yesFluids
For capturing dynamic information about a filled-cave in the fractured reservoir, a novel Pressure Transient Analysis (PTA) analytical model for a well located at the filled-cave is established.
Wenyang Shi   +8 more
doaj   +1 more source

Architecture‐Driven Functional Coupling in Vertically Aligned Nanocomposites

open access: yesAdvanced Functional Materials, EarlyView.
Vertically aligned nanocomposites define a growth‐engineered architecture in which vertical interfaces, strain fields, defect pathways, and phase connectivity are created simultaneously. This review shows how these architectural features couple ferroic, optical, ionic, electrochemical, and device responses, establishing design rules and open challenges
Md Shatil Islam‐Shanto   +4 more
wiley   +1 more source

Forecasting China's natural gas consumption based on a combination model

open access: yes, 2010
Ensuring a sufficient energy supply is essential to a country Natural gas constitutes a vital part in energy supply and therefore forecasting natural gas consumption reliably and accurately is an essential part of a country's energy policy Over the years
Wang, Weiguo   +3 more
core   +1 more source

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