Results 131 to 140 of about 571,375 (356)

Single and Bi‐Layer Glass‐Based Phantoms: Robust Materials for a Calibration Standard for Fluorescence Imaging Systems

Advanced Photonics Research, EarlyView.
Fluorescence‐guided surgery is a common technique and characterizing imaging performance is important to ensure clinical reliability. A calibration standard comprising multiple glass phantoms fabricated to mimic the optical properties of fluorescent and non‐fluorescent tissue is presented.
Mingze Yang, Yunle Wei, Philipp Reineck, Adam J. Wells, Heike Ebendorff‐Heidepriem, Jiawen Li, Robert A. McLaughlin   +6 more
wiley   +1 more source

Prediction of Brent crude oil price based on LSTM model under the background of low-carbon transition [PDF]

arXiv
In the field of global energy and environment, crude oil is an important strategic resource, and its price fluctuation has a far-reaching impact on the global economy, financial market and the process of low-carbon development. In recent years, with the gradual promotion of green energy transformation and low-carbon development in various countries ...
arxiv  

Recent Advances in Variable‐Stiffness Robotic Systems Enabled by Phase‐Change Materials

Advanced Robotics Research, EarlyView.
Phase‐change materials (PCMs), such as shape memory alloys, hydrogels, shape memory polymers, liquid crystal elastomers, and low‐melting‐point alloys, are driving advancements in stiffness‐tunable robotic systems across a wide range of applications. This review highlights recent progress in PCM‐enabled robotics, focusing on their underlying mechanisms,
Sukrit Gaira, Liao Wu, Ming Li, Priyank Kumar, Xiaopeng Li, Shi‐Yang Tang   +5 more
wiley   +1 more source

Synthesis of Modified Nano-Hydrotalcite Clay by Micellar Method and Its Application as Gel-like Crude Oil Flow Improver

Gels
The network formed by wax precipitation at low temperature and colloid asphaltene at high temperature leads to poor fluidity of heavy oil, and the gelling characteristics of crude oil lead to pipeline blockage, which affects the exploitation ...
Yingna Du, Michal Slaný, Tianbao Hu, Yubo Lian, Yingxue Bai, Congyu Ke, Gang Chen   +6 more
doaj   +1 more source

Origins of Oil, a Correction and Further Comment on the Brunnock1 Even C-Number Predominance in Certain Higher Alkanes of African Crudes, and on the Biogenesis of Nonacosane [PDF]

, 1967
Robert Robinson
openalex   +1 more source

Direct Access to α,β‐Unsaturated γ‐Lactams via Palladium‐Catalysed Carbonylation of Propargylic Ureas.

Advanced Synthesis &Catalysis, Volume 367, Issue 5, March 4, 2025.
Abstract Additive carbonylations typically necessitate strong nucleophiles, such as alcohols or amines. In this study, we carbonylated a poorly nucleophilic urea, under oxidant‐free conditions. Our straightforward carbonylative strategy enables access to versatile α,β‐unsaturated γ‐lactams featuring an aminocarbonyl fragment, utilizing readily ...
Debora Schiroli, Aleksandr Voronov, Francesco Pancrazzi, Nunzio Iraci, Salvatore Vincenzo Giofrè, Beatrice Macchi, Valeria Stefanizzi, Raffaella Mancuso, Bartolo Gabriele, Paolo Pio Mazzeo, Luca Capaldo, Nicola Della Ca'   +11 more
wiley   +1 more source

Applications of Vapor Recovery to Crude Oil Production [PDF]

, 1968
G.B. Evans, Ralph Nelson
openalex   +1 more source

Automatic Crude Oil Handling Through a Pressurized System from the Wellhead to the Refinery [PDF]

, 1967
William B. Davis, Paul W. Truman, A.R. Groeneman   +2 more
openalex   +2 more sources

Improving the Photochemical Skeletal Enlargement of Pyridines to 1,2‐Diazepines with Isocyanates

Advanced Synthesis &Catalysis, Volume 367, Issue 5, March 4, 2025.
Abstract In this work, we extend the one‐pot protocol to synthesize 1,2‐diazepines from commercially available and cheap starting materials. Capitalizing on isocyanate derivatives as activating agents, the photochemical skeletal enlargement occurs, while preserving key functional groups embedded in more than 30 substrates.
Clément Ghiazza, Aurélie Damond, Jérôme Marrot, Xavier Moreau   +3 more
wiley   +1 more source

A Study of the Vaporization of Crude Oil by Carbon Dioxide Repressuring [PDF]

, 1963
D.E. Menzie, R.F. Nielsen
openalex   +1 more source