Results 51 to 60 of about 12,241 (271)

Naphthalimide‐Based Type‐I Nano‐Photosensitizers for Enhanced Antitumor Photodynamic Therapy: H2S Synergistically Regulates PeT and Self‐Assembly

Angewandte Chemie, Volume 137, Issue 48, November 24, 2025.
Here, we introduce a design strategy for activated photosensitizers (PSs) wherein photoinduced electron transfer (PeT) is combined with a process of self‐assembly that can be regulated by endogenous H2S—a tumor‐associated biomarker to favor Type‐I photochemical reactions.
Huiyu Niu, Songnan Wang, Yang Liu, Nana Ma, Shuaiwei Cheng, Beidou Feng, Hyunsun Jeong, Yonggang Yang, Ge Wang, Tony D. James, Juyoung Yoon, Jonathan L. Sessler, Hua Zhang   +12 more
wiley   +2 more sources

Design of Beidou timing module

IOP Conference Series: Earth and Environmental Science, 2020
Abstract The Beidou timing module receives the Beidou Satellite Information, calculates the time and positioning information, transmits the time and timing information through various external interfaces, and has the function of short message forwarding. This paper presents a system design scheme for the Beidou time-keeping module, which
openaire   +1 more source

STUDY ON THE PERFORMANCE OF BEIDOU HIGH-PRECISION REFERENCE STATION NETWORK IN BEIBU GULF OF GUANGXI [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
Beidou high-precision reference station network in Beibu Gulf of Guangxi consists of five parts, namely Beidou reference stations, the data processing system, the operation and service platform, the data broadcast system and user terminals.
X. Y. Zhong, Y. F. Yang, C. L. Zhou
doaj   +1 more source

The Analysis of Ionospheric TEC Anomalies Prior to the Jiuzhaigou Ms7.0 Earthquake Based on BeiDou GEO Satellite Data

Remote Sensing
The position between BeiDou geostationary Earth orbit (GEO) satellites and ground-based receiving stations can roughly be considered to be constant with negligible fluctuations; thus, the total electron content (TEC) data over a fixed ionospheric ...
Xinyi Jia, Jing Liu, Xuemin Zhang
semanticscholar   +1 more source

Temporal Evolution and Prevention Efficacy of Ritually Induced Fire Ignition Probability in Urban‐Forest Interface Zones: An Empirical Model Based on Forest Fire Risk Data From Kaifu District

Engineering Reports, Volume 8, Issue 1, January 2026.
This study integrates multi‐source geospatial data and fire risk modeling to provide the first quantitative analysis of the dynamic impacts of ritual fires on urban‐forest interface zones. Unlike conventional static risk assessment methods, our proposed temporal evolution model elucidates the coupling mechanisms between anthropogenic activities and ...
Sicong Zhou
wiley   +1 more source

GPS + Galileo + BeiDou precise point positioning with triple-frequency ambiguity resolution

GPS Solutions, 2020
Along with the rapid development of GNSS, not only BeiDou, but also Galileo, and the newly launched GPS satellites can provide signals on three frequencies at present.
Pan Li, Xinyuan Jiang, Xiaohong Zhang, M. Ge, H. Schuh   +4 more
semanticscholar   +1 more source

Regional Medium‐Scale Traveling Ionospheric Disturbance Propagation Model Based on BDS GEO Satellites

Space Weather, Volume 24, Issue 1, January 2026.
Abstract Accurate modeling of traveling ionospheric disturbances (TIDs) is essential for characterizing their spatiotemporal variations and mitigating their effects on Global Navigation Satellite System (GNSS) precise positioning. This study develops a regional medium‐scale TID (MSTID) propagation model using BeiDou geostationary orbit (GEO) total ...
Dengkui Mei, Xiaohong Zhang, Xiaodong Ren, Xuan Le, Wentao Yang, Ahmed Abdelaziz   +5 more
wiley   +1 more source

Freshly Generated Super Sunrise Plasma Bubbles During the Geomagnetic Storm on November 5–6, 2023

Space Weather, Volume 24, Issue 1, January 2026.
Abstract During the geomagnetic storm on November 5–6, 2023, freshly generated super sunrise equatorial plasma bubbles (EPBs) and associated irregularities over the 80°–140°E sector were observed combining ground‐based and space observations from GNSS, ionosondes, HF Doppler records, and several satellite missions (COSMIC2, Swarm, and DMSP).
Ke Li, Donghe Zhang, Yaoyu Tian, Yi Zeng, Guanglin Yang, Xiukuan Zhao, Guozhu Li, Yongqiang Hao   +7 more
wiley   +1 more source

CGAN BeiDou Satellite Short-Message-Encryption Scheme Using Ship PVT

Remote Sensing, 2022
The transmission standard and format of short-message communication in the BeiDou satellite-navigation-system are open, the civilian channel adopts a direct-transmission plaintext mechanism, and the content of short messages is at risk of data leaks ...
Sheng Liu, Di Wu, Lanyong Zhang
doaj   +1 more source

GNSS e dati geografici costituiscono la quinta infrastruttura primaria globale

GEOmedia, 2014
2014 is the year of the official start of services provided by European Galileo satellite positioning system, and even if a few years late, the expectations for the induction of a rapidly growing market are many, with expected growth more then doubled by
Renzo Carlucci
doaj   +2 more sources