Results 91 to 100 of about 549,143 (317)

Datum maintenance of the main Egyptian geodetic control networks by utilizing Precise Point Positioning “PPP” technique [PDF]

NRIAG Journal of Astronomy and Geophysics, 2016
Abstract A geodetic control network is the wire-frame or the skeleton on which continuous and consistent mapping, Geographic Information Systems (GIS), and surveys are based. Traditionally, geodetic control points are established as permanent physical monuments placed in the ground and precisely marked, located, and documented.
Mahmoud Elmewafey, Magda H. Farahan, Mostafa Rabah   +2 more
openaire   +2 more sources

LRRC4 Deficiency Drives Premature Ovarian Insufficiency by Disrupting Metabolic Homeostasis in Granulosa Cells

Advanced Science, EarlyView.
LRRC4 deficiency disrupts the metabolic homeostasis of mitochondrial aerobic respiration and glycolysis during GC differentiation by inhibiting the ubiquitination‐mediated degradation of YAP, which ultimately leads to POI. These findings reveal the novel molecular etiology of POI and provide a promising target for prevention and treatment.
Yujie Shang, Yunjun Li, Di Han, Kun Deng, Wei Gao, Minghua Wu   +5 more
wiley   +1 more source

Modeling and assessment of five-frequency BDS precise point positioning

Satellite Navigation, 2022
Since its full operation in 2020, BeiDou Satellite Navigation System (BDS) has provided global services with highly precise Positioning, Navigation, and Timing (PNT) as well as unique short-message communication.
Zhiyuan Wu, Qianxin Wang, Chao Hu, Zhihao Yu, Wei Wu   +4 more
doaj   +1 more source

Correlations in Magnetic Sub‐Domains as an Unconventional Phase Diagram for van der Waals Ferromagnets

Advanced Science, EarlyView.
An unconventional magnetic order is observed in exfoliated CrBr3 layers, characterized by vertically correlated planar magnetic sub‐domains. Magnetic force microscopy, ab initio calculations, and micromagnetic simulations indicate that these sub‐domains arise from stacking faults modifying interlayer exchange coupling.
Sergey Y. Grebenchuk, Magdalena Grzeszczyk, Zhaolong Chen, Makars Šiškins, Vladislav Borisov, Manuel Pereiro, Mikhail I. Katsnelson, Olle Eriksson, Kostya S. Novoselov, Maciej Koperski   +9 more
wiley   +1 more source

A Smart Realtime Service to Broadcast the Precise Orbits of GPS Satellite and Its Performance on Precise Point Positioning

Sensors, 2020
At present, Global Position System (GPS) navigation ephemeris mainly broadcasts satellite orbits with meter-level precision for standard point positioning and precise relative positioning. With the rapid development of real-time precise point positioning
Dehai Li, Wei Yan, Jinzhong Mi, Yamin Dang, Yunbin Yuan, Xingli Gan   +5 more
doaj   +1 more source

Suspended Tissue Open Microfluidic Patterning (STOMP)

Advanced Science, EarlyView.
Suspended Tissue Open Microfluidic Patterning (STOMP) is a method that enables precise spatial patterning within a single suspended tissue. By leveraging capillary pinning and open microfluidics, STOMP facilitates the creation of complex tissue interfaces such as diseased‐healthy boundaries and tissue‐tissue junctions. This method integrates mechanical
Amanda J. Haack, Lauren G. Brown, Alex J. Goldstein, Priti Mulimani, Jean Berthier, Asha R. Viswanathan, Irina Kopyeva, Jamison M. Whitten, Ariel Lin, Serena H. Nguyen, Thomas P. Leahy, Ella E. Bouker, Ruby M. Padgett, Natalie A. Mazzawi, Jodie C. Tokihiro, Ross C. Bretherton, Aaliyah Wu, Stephen J. Tapscott, Cole A. DeForest, Tracy E. Popowics, Erwin Berthier, Nathan J. Sniadecki, Ashleigh B. Theberge   +22 more
wiley   +1 more source

Development of Precise Point Positioning Method Using Global Positioning System Measurements [PDF]

Journal of Astronomy and Space Sciences, 2011
Precise point positioning (PPP) is increasingly used in several parts such as monitoring of crustal movement and maintaining an international terrestrial reference frame using global positioning system (GPS) measurements.
Byung-Kyu Choi, Jeong-Ho Back, Sung-Ki Cho, Jong-Uk Park, Pil-Ho Park   +4 more
doaj   +1 more source

A-PPP: Array-Aided Precise Point Positioning With Global Navigation Satellite Systems

IEEE Transactions on Signal Processing, 2012
In this paper, the global navigation satellite system (GNSS) precise point positioning (PPP) concept is generalized to array-aided PPP (A-PPP). A-PPP is a measurement concept that uses GNSS data, from multiple antennas in an array of known geometry, to realize improved GNSS parameter estimation (position, attitude, time and atmospheric delays).
openaire   +3 more sources

A Detailed Comprehensive Role of Digital Technologies in Green Finance Initiative for Net‐Zero Energy Transition

Advanced Energy and Sustainability Research, EarlyView.
This study aims to provide actionable recommendations for leveraging digital innovation for the achievement of scalable, equitable, and transparent Net Zero Energy Transition by offering actionable recommendations. As a result of this comprehensive analysis, the review highlights the critical interplay between digital technologies and GF as vital ...
Furkan Ahmad, Ameni Boumaiza, Antonio Sanfilippo, Luluwah Al‐Fagih   +3 more
wiley   +1 more source

Occupational Exposure Patterns to Disinfectants and Cleaning Products and Its Association With Asthma Among French Healthcare Workers

American Journal of Industrial Medicine, EarlyView.
ABSTRACT Background Disinfectants and cleaning products (DCPs) are important asthma risk factors among healthcare workers. However, healthcare work involves heterogenous cleaning tasks and co‐exposure to many chemicals. These multidimensional aspects have rarely been considered.
Bakari Ibrahim, Nicole Le Moual, Guillaume Sit, Marcel Goldberg, Bénédicte Leynaert, Céline Ribet, Nicolas Roche, Raphaëlle Varraso, Marie Zins, Rachel Nadif, Laurent Orsi, Orianne Dumas   +11 more
wiley   +1 more source