Results 51 to 60 of about 783,650 (212)

Stabilization of Strongly Reduced Fe(I) Single Atom Species Coordinated in a 2D Self‐Assembled Metal–Organic Network

Advanced Functional Materials, EarlyView.
A graphene‐supported 2D metal–organic network stabilizes highly reactive Fe(I)‐N4 single sites through Co‐induced charge redistribution. Combined experiments and theory reveal Fe(I) formation, oxygen‐driven oxidation, and O2 activation mechanisms, offering a strategy to access low‐valent iron centers relevant to catalytic and biological processes ...
Alessandro Namar, Basant Roondhe, Michela De Col, Stefania Baronio, Matteo Jugovac, Mattia Scardamaglia, Eleanor Frampton, Nikolay Vinogradov, Paolo Giannozzi, Erik Vesselli   +9 more
wiley   +1 more source

PPP Infrastructure development in China: Challenges and future trends [PDF]

, 2013
China is one of the fastest growing economies, which demonstrates a strong investment-led growth model to the world. Chinese central government has a strategic infrastructure plan to support its national economic growth and rapid urbanisation.
Kong, Jiaojiao, Jiaojiao, Kong, Zhou, Lei, Perera, Srinath (R18622), Tang, Xianglai, Perera, Srinath, Udeaja, Chika, Xianglai, Tang   +7 more
core  

Cube: An Open-Source Software for Clock Offset Estimation and Precise Point Positioning with Ambiguity Resolution

Remote Sensing
Precise point positioning (PPP) is a prevalent, high-precision spatial absolution positioning method, and its performance can be enhanced by ambiguity resolution (AR).
Shuai Liu, Yunbin Yuan, Xiaosong Guo, Kezhi Wang, Gongwei Xiao   +4 more
doaj   +1 more source

Improved PPP Ambiguity Resolution with the Assistance of Multiple LEO Constellations and Signals

Remote Sensing, 2019
The fusion of low earth orbit (LEO) constellation and Global Navigation Satellite Systems (GNSS) can increase the number of visible satellites and optimize spatial geometry, which is expected to improve the performance of precise point positioning (PPP ...
Xin Li, Xingxing Li, Fujian Ma, Yongqiang Yuan, Keke Zhang, Feng Zhou, Xiaohong Zhang   +6 more
doaj   +1 more source

Efficacy of dual sublingual immunotherapy with Japanese cedar pollen and house dust mite allergens in patients with allergic rhinitis sensitized to multiple allergens

Laryngoscope Investigative Otolaryngology, 2022
Objective In the present study, we examined the effects of dual sublingual immunotherapy (SLIT) with Japanese cedar pollen (JCP) and house dust mite (HDM) allergens on nasal symptoms during the peak pollen period (PPP) and in late fall (LF) in patients ...
Tatsuya Fujii, Yoshiaki Kitamura, Seiichiro Kamimura, Keisuke Ishitani, Noriaki Takeda   +4 more
doaj   +1 more source

Ligand Assisted Epitaxial Growth of CsPbBr3 Microcrystal Resonators With Record ‐Low Lasing Thresholds

Advanced Functional Materials, EarlyView.
Solution‐based ligand‐assisted epitaxial growth (LAEG) yields high‐quality CsPbBr3 microcrystals on different substrates with superior morphology, passivated surfaces, and high photoluminescence quantum yield. These robust micro‐resonators achieve record‐low room‐temperature lasing thresholds of 7.2 kW·cm−2 and maintain operational stability up to 90 ...
Shuyu Zhou, Viktor Rehm, Zijian Peng, Tomáš Hrbek, Anastasia Barabash, Christoph J. Brabec, Berke Özyalin, Yufei Han, Johannes Böhmer, Johannes Will, Erdmann Spiecker, Klaus Götz, Tobias Unruh, Jędrzej Korczak, Tomasz Story, Felix Hilpert, Olaf Brummel, Jörg Libuda, Iva Matolínová, Wolfgang Heiss   +19 more
wiley   +1 more source

Early Retinal UCHL1 Dysregulation Coupled With Synaptic Loss Reflects Alzheimer's Disease Severity

Advanced Science, EarlyView.
This study identifies synapse‐enriched deubiquitinase UCHL1 as an early Aβ‐responsive regulator of retinal synaptopathy in Alzheimer's disease. Retinal UCHL1 loss accompanies excitatory synapse degeneration, p75NTR activation, and neuroinflammation, and predicts Braak stage and cognitive decline. Aβ42 fibrils trigger synaptic and UCHL1 depletion before
Altan Rentsendorj, Jean‐Philippe Vit, Alexandre Hutton, Yosef Koronyo, Saba Shahin, Edward Robinson, Ernesto Barron, Anthony Rodriguez, Ousman Jallow, Julia Sheyn, Bhakta Prasad Gaire, Lalita Subedi, Miyah R. Davis, Barathan Gnanabharathi, Alexander V. Ljubimov, Stuart L. Graham, Vivek K. Gupta, Mehdi Mirzaei, Debra Hawes, Katlin Silm, Keith L. Black, Lon S. Schneider, Alfredo A. Sadun, Jesse G. Meyer, Dieu‐Trang Fuchs, Maya Koronyo‐Hamaoui   +25 more
wiley   +1 more source

Continuous GPS PPP-AR frequency transfer links

Metrologia
Abstract In this paper, we show that the SPARK software of the Natural Resources Canada (NRCan) with their DCR (Decoupled Clock Rapid) products can be used to generate the PPP-AR continuous batch clock solutions of multiple days, which we use to build frequency transfer links between two remotely located GPS receivers.
Bin Jian, Marina Gertsvolf
openaire   +1 more source

Assessing the Performance of Multipath Mitigation for Multi-GNSS Precise Point Positioning Ambiguity Resolution

Remote Sensing, 2023
Real-time GNSS PPP is commonly used for high-precision positioning, but its utility is constrained by factors that necessitate extended convergence periods for a dependable accuracy.
Kai Zheng, Lingmin Tan, Kezhong Liu, Mozi Chen, Xuming Zeng   +4 more
doaj   +1 more source

Boosting Ferroelectricity: 2D and Polymer Ferroelectric Hybrids Enabling Ambipolar Nonvolatile MoS2 Memory Transistor

Advanced Science, EarlyView.
Two‐dimensional CuInP2S6 nanosheets are incorporated into a P(VDF‐TrFE) matrix to induce polarization‐cooperative ferroelectric coupling. The resulting P(VDF‐TrFE)/CuInP2S6 hybrid film exhibits reinforced ferroelectric ordering and reduced coercive electric fields compared with pristine P(VDF‐TrFE).
Yeonsu Jeong, Honglei Wang, Pietro Tordi, Ying Chieh Hu, Adrián Tamayo, Bing Wu, Hyun Soo Ahn, Zdenek Sofer, Jong Hoon Jung, Massimo Bonini, Paolo Samorì   +10 more
wiley   +1 more source