Results 231 to 240 of about 767,153 (271)

CMCSMA-Citric Acid Hydrogel-Coated Pancreatic Duct Stent Used for Pancreatic Calculi. [PDF]

Gels
Li J, Yang J, Wang S.
europepmc   +1 more source

Late closure of the open abdomen in emergency abdomino-pelvic surgery: Advanced indications to negative pressure wound therapy? [PDF]

World J Emerg Surg
Prete FP, De Luca GM, Sgaramella LI, Poli E, Malerba S, Puglisi GR, Moschou M, Saponara B, Marano L, Gurrado A, Coccolini F, Catena F, Testini M.   +12 more
europepmc   +1 more source

Dynamically Bonded MXene‑Composite Hydrogel via Confined‑Space Gelation for Multimodal Sensing, Photothermal Response and Human‑Machine Interaction. [PDF]

Small
Guo X, Sun J, Liu S, Li K, Yang X, Zhao Y, Wang J, Tong M, Gu X.   +8 more
europepmc   +1 more source

A case report of bacterial canaliculitis caused by Ottowia massiliensis Sp.nov. [PDF]

BMC Ophthalmol
Wu Y, Sun H, Kang M, Chen K, Liang Q, Lu X.   +5 more
europepmc   +1 more source

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Predicting Duct Height in Atmospheric Duct by Neural Network

Advanced Materials Research, 2012
The experimental data show that Southeast China Sea has a higher occurrence probability of atmospheric duct. Based on modified refractivity, Neural Network was introduced to predict the duct height of evaporation duct and analyze the anomalous propagation of electromagnetic wave in marine evaporation duct.
exaly   +2 more sources

Analysis of Missing Cloud Echoes in Atmospheric Duct

2019 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference (CSQRWC), 2019
In order to analyze the phenomenon of missing cloud echoes of doppler weather radar in Dalian in July 25, 2006, the atmospheric duct is calculated by using the atmospheric temperature and humidity profiles measured at that time. According to the calculated atmospheric duct, the parabolic numerical equation model and radar cloud echo detection distance ...
Hua Wang, Yunbo Li, Haichuan Tang, Lin Jiao   +3 more
exaly   +2 more sources

Trends and frontiers of atmospheric duct research based on CiteSpace and deep learning

Environmental Science and Pollution Research, 2022
The research of evaporation duct is of fundamental importance in the radar and signal communication industry. Particularly, in a real atmosphere environment, most of the radar holes cannot be corrected in time because of the persistent evaporation duct phenomenon.
Zhiqiang Wei, Jiali Xu, Jiajing Wu
exaly   +3 more sources

Modeling on multi‐eigenpath channel in marine atmospheric duct

Radio Science, 2009
A multi‐eigenpath channel model is proposed to simulate the microwave transhorizon communication signal in marine atmospheric duct environment. The channel model identifies the relation between multiperiodical delay components and subeigenpath components. The simplified algorithm of subeigen signal is proposed on the basis on signal‐to‐multipath ratio.
Xiao‐long Zhao, Ji‐ying Huang, Shu‐hong Gong   +2 more
exaly   +2 more sources

Analysis of Ultra-short Wave Propagation in Atmospheric Duct

2018 12th International Symposium on Antennas, Propagation and EM Theory (ISAPE), 2018
Aiming at the phenomenon of Ship-borne AIS over-the-horizon communication in some area in the Yellow Sea in June 2, 2018, which influenced by atmospheric duct, the atmospheric duct is calculated by using the atmospheric temperature and humidity profiles measured at that time.
Haichuan Tang, Hua Wang, Lin Jiao, Yunbo Li   +3 more
exaly   +2 more sources

FNN-Based Prediction of Wireless Channel with Atmospheric Duct

ICC 2021 - IEEE International Conference on Communications, 2021
This paper proposes solutions to channel prediction with atmospheric duct based on feedforward neural network (FNN) modeling. Specifically, FNN-based model is to produce accurate prediction by directly learning from large database rather than depending on any assumption.
Hanzhong Zhang, Ting Zhou, Tianheng Xu, Yuzhen Wang, Honglin Hu   +4 more
openaire   +2 more sources