Results 71 to 80 of about 2,075 (224)

System-level characterisation of hybrid LEO-terrestrial link performance under Ka-band propagation and interference constraints

Scientific Reports
Hybrid integration of Low Earth Orbit (LEO) satellite systems with terrestrial networks is a critical facilitator for beyond-5G connectivity, especially in situations where terrestrial coverage is constrained by cost or feasibility.
Sujatha Rajkumar, Aditya Menon, Siddhanth Gupta, Indrasen Singh   +3 more
doaj   +1 more source

Detection Performance Analysis of Marine Wind by Lidar and Radar under All-Weather Conditions

Remote Sensing
Accurate marine wind detection under all-weather conditions is crucial for maritime activities. The joint detection of lidar and radar is supposed to be a potential way to carry out the all-weather sensing of wind. However, their performance analysis has
Yunli Peng, Youcao Wu, Chun Shen, He Xu, Jianbing Li   +4 more
doaj   +1 more source

EarthCARE Cloud Profiling Radar observations of the vertical structure of marine stratocumulus clouds [PDF]

Atmospheric Chemistry and Physics
Launched in May 2024, the EarthCARE Cloud Profiling Radar (EC-CPR) provides enhanced sensitivity, finer horizontal resolution, finer vertical sampling and greatly reduced surface clutter contamination compared to its predecessor, the CloudSat's CPR (CS ...
Z. Xu, P. Kollias, P. Kollias, S. Sasikumar, A. Battaglia, B. Puigdomènech Treserras, M. L. W. McLinden   +6 more
doaj   +1 more source

Maximizing Nanoscale Disorder in Block Copolymers for Orientation‐Independent SERS Platform Toward Non‐Invasive Diagnostics

Advanced Science, EarlyView.
Maximizing Nanoscale Disorder in Block Copolymers for Orientation‐Independent SERS Platform toward Non‐Invasive Diagnostics is a nature‐inspired strategy that engineers controlled randomness within block copolymer lamellae to achieve optical isotropy without compromising nanoscale periodicity.
Jin Man Kim, Wonsik Kim, Wansun Kim, Yeon‐Hee Kim, Samjin Choi, Jang Hwan Kim, Hyeong Min Jin   +6 more
wiley   +1 more source

Investigation of free space optics performance in diverse weather condition: a case study

Discover Applied Sciences
The performance of a 32-channel Dense Wavelength Division Multiplexing (DWDM) Free Space Optical (FSO) communication system is evaluated under varying atmospheric conditions associated with four cities in the state of Odisha, India: Bhubaneswar, Puri ...
Tusharkant Panda, Bhawani Sahu, Padmini Mishra, Asutosh Gouda, S. P. Samal, Pramod Martha   +5 more
doaj   +1 more source

Programming Structural Symmetry and Emission in Low‐Dimensional Hybrid Perovskites via Time and Temperature

Advanced Science, EarlyView.
We demonstrate programmable structural symmetry and emission in benzylammonium‐based low‐dimensional hybrid perovskites. Continuous shaking transforms orthorhombic platelets into a lower‐symmetry monoclinic phase with broadband emission, whereas thermal activation drives the reverse pathways toward a higher‐symmetry configuration resembling the ...
Luiz G. Bonato, Sirous Khabbaz Abkenar, Balaji Dhanabalan, Quentin Evrard, Luca Goldoni, Sergio Marras, Giorgio Divitini, Milena P. Arciniegas   +7 more
wiley   +1 more source

Comparing and Merging Observation Data from Ka-Band Cloud Radar, C-Band Frequency-Modulated Continuous Wave Radar and Ceilometer Systems

Remote Sensing, 2017
Field experiment in South China was undertaken to improve understanding of cloud and precipitation properties. Measurements of the vertical structures of non-precipitating and precipitating clouds were obtained using passive and active remote sensing ...
Liping Liu, Zheng Ruan, Jiafeng Zheng, Wenhua Gao   +3 more
doaj   +1 more source

Gαi1/3 Are Essential for BMP2‐Induced Osteogenesis by Bridging BMP Receptors to the Gab1 Signaling Complex

Advanced Science, EarlyView.
The Gαi1/3 protein is a crucial connecting protein closely related to the signal transduction process of bone formation‐related cytokines such as BMP2. Gαi1/3 mediates downstream signaling pathways such as Smads and MAPK by binding to adaptor proteins like Gab1, thereby promoting the osteogenic effect of BMSCs.
Huajian Shan, Chaowen Bai, Yifei Zhu, Chenyang Xu, Sonngtao Li, Qize Sun, Chang She, Jinyu Bai, Cong Cao, Yitian Yang, Xiaozhong Zhou   +10 more
wiley   +1 more source

Differential Tissue‐Coupled Powering for Battery‐Free Injectable Electroceuticals

Advanced Science, EarlyView.
A thread‐like injectable neural stimulator is powered through differential tissue‐coupled powering (DTCP), which harvests RF‐frequency tissue potentials with an elongated receiver while preserving a injectable cross‐section. The system integrates an ASIC, stimulation electrodes, and a portable transmitter, enabling wireless peripheral nerve stimulation,
Han Wu, Sultan Mahmud, Mali Halac, Asif Iftekhar Omi, Domenica Sofia Baez Rodas, Jeremiasz Dados, Chaojun Cheng, Anyu Jiang, Cameron Wallace, Anvi Singh, Erin Patrick, Baibhab Chatterjee, Shriya Srinivasan, Adam Khalifa   +13 more
wiley   +1 more source

Quest for a Coherent Definition of Weak-line Quasars and Its Physical Implications

The Astrophysical Journal
Weak-line quasars (WLQs) represent a subset of type 1 quasars distinguished by remarkably weak high-ionization broad emission lines, yet exhibiting normal optical/UV continua. This study establishes a physically motivated definition of WLQs using 371,091
Xiaoqiang Cheng, Jianfeng Wu, Qiaoya Wu
doaj   +1 more source