Results 101 to 110 of about 549,143 (317)

Real-Time PPP Based on the Coupling Estimation of Clock Bias and Orbit Error with Broadcast Ephemeris

open access: yesSensors, 2015
Satellite orbit error and clock bias are the keys to precise point positioning (PPP). The traditional PPP algorithm requires precise satellite products based on worldwide permanent reference stations.
Shuguo Pan   +4 more
doaj   +1 more source

Measurement of the Velocity of the Neutrino with MINOS [PDF]

open access: yesarXiv, 2014
The MINOS experiment uses a beam of predominantly muon-type neutrinos generated using protons from the Main Injector at Fermilab in Batavia, IL, and travelling 735 km through the Earth to a disused iron mine in Soudan, MN. The 10{\mu}s-long beam pulse contains fine time structure which allows a precise measurement of the neutrino time of flight to be ...
arxiv  

Immunoengineering of a Photocaged 5´‐triphosphate Oligoribonucleotide Ligand for Spatiotemporal Control of RIG‐I Activation in Cancer

open access: yesAngewandte Chemie International Edition, EarlyView.
This study presents a method for precise control of RIG‐I (retinoic acid inducible gene I), an innate immune receptor of RNA that, when activated, induces anti‐tumor immune responses and cancer cell death. By incorporating photocage modifications into RNA ligands, we enable a spatially and temporally regulated immune response and offer a targeted ...
Sandra Anika Lewash   +11 more
wiley   +1 more source

Direct comparisons of European primary and secondary frequency standards via satellite techniques [PDF]

open access: yes, 2019
We carried out a 26-day comparison of five simultaneously operated optical clocks and six atomic fountain clocks located at INRIM, LNE-SYRTE, NPL and PTB by using two satellite-based frequency comparison techniques: broadband Two-Way Satellite Time and Frequency Transfer (TWSTFT) and Global Positioning System Precise Point Positioning (GPS PPP).
arxiv   +1 more source

Understanding and Tuning Singlet–Triplet (S1–T1) Energy Gaps in Planar Organic Chromophores

open access: yesAngewandte Chemie International Edition, EarlyView.
A new framework for tuning singlet–triplet (S1–T1) gaps based on electrostatic interactions of the transition density is developed. Three widely applicable design rules for maximizing the singlet–triplet gap are derived: minimizing the number of electrons, localizing the excitation, and optimizing through‐space interactions.
Weixuan Zeng   +3 more
wiley   +1 more source

Public Debt: What Measures Should We Use? A Case Study of Public Debt in Mid‐ and Post‐pandemic Australia and Its Economic, Policy and Social Consequences

open access: yesAustralian Economic Review, Volume 55, Issue 4, Page 441-460, December 2022., 2022
Abstract The COVID‐19 pandemic saw governments around the world suddenly accumulate substantially higher levels of public debt. We consider the level of debt entered into by Australia's federal, state and territory governments and compare this against three metrics for debt sustainability.
Sebastian Zwalf, Robin Scott
wiley   +1 more source

Simulation case study of deformations and landslides using real-time GNSS precise point positioning technique

open access: yesGeomatics, Natural Hazards & Risk, 2016
The precise point positioning (PPP) is a Global Navigation Satellite System (GNSS) computation technique that performs precise positioning using a single receiver.
Raquel M. Capilla   +3 more
doaj   +1 more source

Conjugated polymers as photocatalysts for hydrogen therapy

open access: yesBMEMat, EarlyView.
Conjugated polymers, including linear polymers and crosslinked conjugated materials, are promising photocatalysts for hydrogen evolution due to their excellent optical properties. Hydrogen therapy based on photocatalytic hydrogen evolution presented significant effects in the fields of anti‐inflammatory, free radical scavenging, and cancer treatment ...
Feixue Mi   +10 more
wiley   +1 more source

Performance analysis of real-time and post-mission kinematic precise point positioning in marine environments

open access: yesGeodesy and Geodynamics, 2020
This article focuses on the performance analysis of both real-time and post-mission kinematic precise point positioning (PPP) in challenging marine environments.
Serdar Erol   +3 more
doaj  

Lienhwalides: Unique Tropolone–Maleidride Hybrids from Hypoxylon lienhwacheense

open access: yesChemBioChem, EarlyView.
Lienhwalides are novel tropolone–maleidride hybrid molecules unique in nature. Absolute configuration is solved by semisynthetic approaches and X‐ray analysis. Interplay between both lwt and lwm biosynthetic gene clusters is responsible for the production of lienhwalides.
Katharina Schmidt   +13 more
wiley   +1 more source

Home - About - Disclaimer - Privacy