Results 91 to 100 of about 140,547 (299)

Self‐Assembled Monolayers in p–i–n Perovskite Solar Cells: Molecular Design, Interfacial Engineering, and Machine Learning–Accelerated Material Discovery

open access: yesAdvanced Materials, EarlyView.
This review highlights the role of self‐assembled monolayers (SAMs) in perovskite solar cells, covering molecular engineering, multifunctional interface regulation, machine learning (ML) accelerated discovery, advanced device architectures, and pathways toward scalable fabrication and commercialization for high‐efficiency and stable single‐junction and
Asmat Ullah, Ying Luo, Stefaan De Wolf
wiley   +1 more source

An Experimental and Numerical Simulation Study on Rock Cutting Based on Pre-Breaking

open access: yesShiyou jixie, 2019
The design of the mixed-cutter placement can only rely on the engineering experience. The combination of experiment and numerical simulation is used to study the rock breaking force and rock breaking efficiency of the PDC cutter under different pre ...
Liu Zhong, Hou Huihui, Hu Wei
doaj  

Rock‐breaking mechanism and efficiency of straight‐swirling mixed nozzle for the nondiagenetic natural gas hydrate in deep‐sea shallow

open access: yesEnergy Science & Engineering, 2020
Jet breaking using a high‐pressure nozzle is one solution for breaking natural gas hydrate (NGH) formations, creating a larger breaking volume and fluidizing broken solid fragments.
Yang Tang   +4 more
doaj   +1 more source

Emergent Freestanding Complex Oxide Membranes for Multifunctional Applications

open access: yesAdvanced Materials, EarlyView.
This review surveys freestanding oxide membranes and covers fabrication and three pathways for studies and devices: strain‐free and strained membranes, and van der Waals‐integrated heterostructures. We show how coupled oxide responses map onto these routes and cross‐couple to expand behaviors.
Baowen Li   +6 more
wiley   +1 more source

Research on disc cutter excavation characteristics for different blade width based on numerical simulations and experiments

open access: yes工程科学学报
This study addresses the abnormal failures, such as blade fractures and wear, encountered by disc cutters when excavating hard rock with high uniaxial compressive strength.
Yong SHANG   +5 more
doaj   +1 more source

Enhancing CO2 Injection Efficiency: Rock-Breaking Characteristics of Particle Jet Impact in Bottom Hole

open access: yesAtmosphere
Storing CO2 in oil and gas reservoirs offers a dual benefit: it reduces atmospheric CO2 concentration while simultaneously enhancing oil displacement efficiency and increasing crude oil production. This is achieved by injecting CO2 into producing oil and gas wells.
Yi Wang, Jian Zhao
openaire   +2 more sources

Atomically Resolved Acoustic Dynamics Coupled with Magnetic Order in a Van der Waals Antiferromagnet

open access: yesAdvanced Materials, EarlyView.
Magnetically coupled acoustic phonon modes (f1, f2, f3) are captured by ultrafast X‐ray diffraction in a prototypical van der Waals antiferromagnet FePS3, including their atomic displacement vectors (u) and the acoustic propagation wave vectors (k). Notably, the atomic displacement vector and amplitude of these modes, represented by the direction and ...
Faran Zhou   +24 more
wiley   +1 more source

Systematic optimization of human pluripotent stem cells media using Design of Experiments. [PDF]

open access: yes, 2015
Human pluripotent stem cells (hPSC) are used to study the early stages of human development in vitro and, increasingly due to somatic cell reprogramming, cellular and molecular mechanisms of disease.
Chailangkarn, Thanathom   +2 more
core   +1 more source

Anti‐Slip Material‐Based Strategies and Approaches

open access: yesAdvanced Materials Technologies, EarlyView.
This review highlights the principle mechanisms of slipping at the microscale, linking contact mechanics with a friction behavior model for surface interfaces. Main strategies to develop anti‐slip properties to the surfaces are discussed alongside standardized testing approaches.
Sogand Abbaspoor‐Zanjani   +3 more
wiley   +1 more source

Integrated selection and design method for PDC bits and positive displacement motor

open access: yesPetroleum
It has been found that the rock breaking tools combination of positive displacement motors (PDM) with different output parameters (positive rotational speed and positive torque) and polycrystalline diamond compact (PDC) bits with different design ...
Zhaowei Wang   +5 more
doaj   +1 more source

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