Results 91 to 100 of about 32,795 (346)
Advanced Healthcare Materials, EarlyView.Norbornene‐functionalized alginate is crosslinked with a di‐thiolated peptide sequence cleavable by cell‐secreted matrix metalloproteinases and decorated with cell‐adhesion peptides upon exposure to UV. Thyroid follicles, endometrial and intestinal organoids are encapsulated in a gentle manner with high cell viability and correct phenotype ...
Julia Fernández‐Pérez +8 more
wiley +1 more source
A Method to Mitigate the Effects of Strong Geomagnetic Storm on GNSS Precise Point Positioning
Space Weather, 2022 Geomagnetic storm can affect the performance of Global Navigation Satellite System (GNSS) precise positioning services. To mitigate the adverse effects of strong geomagnetic storms, we propose to establish the geometry‐free (GF) cycle slip threshold ...
Xiaomin Luo +6 more
doaj +1 more source
Ionospheric Regional modeling Algorithm based on GNSS Precise Point Positioning [PDF]
, 2021 Precise point positioning (PPP) is an absolute spatial positioning technology different from carrier phase relative positioning. With the continuous development of Global navigation satellite system (GNSS), multi-constellation GNSS further provides PPP ...
Chen, Yan
core
Resolving the Structural Duality of Graphene Grain Boundaries
Advanced Materials, EarlyView.Cantilever ncAFM resolves the atomic structure of grain boundaries in graphene, revealing coexisting stable and metastable types. Both contain pentagon/heptagon defects, but metastable GBs show irregular geometries. Modeling shows metastable GBs form under compression, exhibiting vertical corrugation, while stable GBs are flat.
Haojie Guo +11 more
wiley +1 more source
Low-Cost Real-Time PPP/INS Integration for Automated Land Vehicles
Sensors, 2019 The last decade has witnessed a growing demand for precise positioning in many applications including car navigation. Navigating automated land vehicles requires at least sub-meter level positioning accuracy with the lowest possible cost.
Mohamed Elsheikh +4 more
doaj +1 more source
A Crowdsourced GNSS and PPP Reference Network [PDF]
, 2021 Due to its requirements for well-positioned base stations and lengthy times-to-first-fix, the Precise Point Positioning (PPP) techniques for decimeter positioning haven\u27t found widespread application in navigation in smartphones.
Diggelen, Frank van, Malkos, Steve
core +1 more source
Advanced Materials Interfaces, EarlyView.Surface roughness and chemistry of novolak‐based grayscale resists are dependent on both exposure dose and post‐exposure thermal treatment. The observed trends align with the viscoelastic phase separation model and underscore the need to consider both thermodynamic and kinetic factors in resist processing. By tailoring thermal treatment, it is possible
Rahul Singh +4 more
wiley +1 more source
Feasibility of precise navigation in high and low latitude regions under scintillation conditions [PDF]
, 2018 Scintillation is one of the most challenging problems in Global Navigation Satellite Systems (GNSS) navigation. This phenomenon appears when the radio signal passes through ionospheric irregularities.
Altadill, David +9 more
core +3 more sources
Advanced Materials Interfaces, EarlyView.Self‐assembled CoO nanobeads on the Van der Waals surface of PtTe2 were synthesized through simple thermal annealing utilizing the residual oxygen in the annealing chamber. In this study, the electrocatalytic effect for oxygen evolution reaction from CoO nanobeads on conducting PtTe2 was confirmed, elucidating the new pathway to design a ...
Minhyuk Choi +9 more
wiley +1 more source
Performance of PPP and PPP-RTK with new-generation GNSS constellations and signals
Satellite NavigationThe expansion of Global Navigation Satellite Systems (GNSS) and Regional Navigation Satellite Systems (RNSS), along with broadcasting of additional signals, offers more options for Precise Point Positioning (PPP). Utilizing a number of constellations and
Xiaohong Zhang +6 more
doaj +1 more source