Results 121 to 130 of about 154 (152)
Cold EI—The Way to Improve GC‐MS and Increase Its Range of Applications
ABSTRACT Gas chromatography‐mass spectrometry (GC‐MS) with Cold electron ionization (EI) is based on interfacing the GC and MS with a supersonic molecular beam (SMB) along with electron ionization of vibrationally cold sample compounds in the SMB in a contact‐free fly‐through ion source (hence the name Cold EI).
Aviv Amirav +3 more
wiley +1 more source
Purpose Provide the theoretical foundation and the first practical demonstration of spatiotemporal encoding (SPEN) using additional nonlinear gradient hardware. Methods The quadratic phase profile can be generated either by a chirped‐RF pulse combined with a constant gradient or, directly, by a quadratic gradient pulse.
Andreas Holl +8 more
wiley +1 more source
Autonomy for MRI Field Cameras: Synchronization, Self‐Calibration, and Sequence Detection
ABSTRACT Purpose This work aims to provide a workflow for operating NMR field probes in MR scanners independently of pulse programming, scanner TTL trigger pulses and dedicated calibration sequences. Methods An independent timing system and limited prior knowledge about relative probe positions enable synchronous field measurement, probe position ...
Oskar Björkqvist, Klaas P. Pruessmann
wiley +1 more source
Seasonal variation of leaf functional traits in sub‐Arctic plants
Leaf functional traits are informative of plant fitness and functions in ecosystems. These functional traits and their variation across geographic extents are much studied but less is known about their temporal variation over a growing season. Here, we provide an analysis of the seasonal variation in six leaf functional traits of 11 sub‐Arctic vascular
Pekka Niittynen +2 more
wiley +1 more source
Development of Vertical Wind Turbine Blades Using 4D Printing of Composites
Vertical axis wind turbine: White blade: Commercial. Black blade: Composite. ABSTRACT This paper presents the procedure to make vertical wind turbine blades using the technique of 4D printing of composites (4DPC). The blades are made using carbon/epoxy composite materials with a fiber volume fraction of about 60%.
Emad Fakhimi, Suong Van Hoa
wiley +1 more source
Dental composites: a comprehensive review on formulation, properties and recent developments
Dental composites are essential in modern restorative dentistry; this review covers their development, composition, key properties and recent advances, highlighting new technologies for optimizing materials and improving clinical outcomes. Abstract Dental composites have evolved considerably since their introduction, becoming the cornerstone of modern ...
Rayenne Latoui +2 more
wiley +1 more source
This review examines bio‐based polyurethanes from renewable feedstocks, focusing on structure‐property relationships governing mechanical performance. It analyzes reinforcement strategies, benchmarks against petrochemical counterparts, and explores future directions, including non‐isocyanate routes and circular economy integration for sustainable high ...
Khaled Chawraba +4 more
wiley +1 more source
ABSTRACT The Nacho Nyäk Tagé (Stewart River) watershed in central Yukon (Canada) is characterized by discontinuous permafrost that is locally highly sensitive to thaw. This study aims to map the spatial distribution of permafrost terrain disturbances (PTDs) in the watershed and model thaw susceptibility to support community‐led land‐use planning by the
Frederic Brieger +2 more
wiley +1 more source
ABSTRACT Under continued climate warming, understanding present‐day permafrost distribution and the controls on ground thaw are critical for predicting permafrost thaw trajectories and associated implications. This study presents a high‐resolution investigation of permafrost extent and active layer thickness (ALT) across a coniferous forested hillslope
Alana Muenchrath +2 more
wiley +1 more source
A panel showing the morphological differences between Sorghum halepense (A), hybrids (B), and Sorghum bicolor (C) with a novel KASP‐based genetic assay capable of reliably distinguishing between them. Partially Created in BioRender. https://BioRender.com/1u30ukv Abstract BACKGROUND Sorghum bicolor and Sorghum halepense can readily hybridize, creating ...
Connor Purvis +2 more
wiley +1 more source

