Results 91 to 100 of about 1,458,515 (251)

Surface Current Retrieval From TerraSAR-X Data Using Doppler Measurements [PDF]

, 2010
The purpose of this paper is to investigate the estimation of surface currents directly on stripmap TerraSAR-X data, as an alternative to Along Track Interferometry.
Thomas Fritz, Breit, Helko, Hartmut Runge, Rossi, Cristian, Fritz, Thomas, Helko Breit, Runge, Hartmut, Cristian Rossi   +7 more
core   +1 more source

Decoupling and Parameter Extraction Methods for Conical Micro-Motion Object Based on FMCW Lidar

Sensors
Micro-Doppler time–frequency analysis has been regarded as an important parameter extraction method for conical micro-motion objects. However, the micro-Doppler effect caused by micro-motion can modulate the frequency of lidar echo, leading to coupling ...
Zhen Yang, Yufan Yang, Manguo Liu, Yuan Wei, Yong Zhang, Jianlong Zhang, Xue Liu, Xin Dai   +7 more
doaj   +1 more source

Perceptions and experiences of midwives' regarding the use of the labor care guide at two state hospitals in Khomas region, Namibia

International Journal of Gynecology &Obstetrics, EarlyView.
Abstract The labor care guide (LCG) is a new tool for monitoring labor, introduced to replace the partograph, which had been used improperly and inconsistently across various contexts. Early research suggests that healthcare practitioners view the LCG as a tool that enhances the quality of care during labor and delivery.
Amalia N. N. Ilonga, Takaedza Munangatire   +1 more
wiley   +1 more source

Diagnostic accuracy of Doppler ultrasound technique of the penile arteries in correlation to selective arteriography [PDF]

, 1988
In 63% of 265 patients with erectile dysfunction a relevant arterial inflow disturbance was found by Doppler ultrasound examination. Correlation between Doppler and arteriography in 58 patients showed an accuracy of 95% in detecting penile arteries and ...
Stief, Christian Georg, Thon, Walter F., Gall, Helmut, Bähren, Wolfgang, Scherb, Wolfgang   +4 more
core   +1 more source

Renal screening sonography—A comparative study in a Portuguese basic emergency service

Journal of Medical Radiation Sciences, Volume 72, Issue 1, Page 8-16, March 2025.
Renal sonography screening aids in clinical decision‐making for patients with suspected renal colic. This study intends to compare the accuracy and pertinence of sonographic findings obtained by a sonographer in a Basic Emergency Service (BES) with that of radiologists at Referral Hospital (RH) in Portugal. Renal sonography screening was able to detect
Sérgio Miravent, Carmen Jiménez, Narciso Barbancho, Manuel Duarte Lobo, Teresa Figueiredo, Carla Gomes, Ion Ratusneac, João Mário Gonçalves, Corina Hasnas, Rui de Almeida   +9 more
wiley   +1 more source

Modeling rainfall drop size distribution moments using an S‐band polarimetric radar in complex terrain

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Using S‐band dual‐polarization radar and disdrometers during PRECIP 2022 in Taiwan, we analyze a Mei‐Yu frontal event with widespread stratiform rain and embedded convection. Multiple disdrometers are used to create a novel drop size distribution model for S‐band radars resolving both the drizzle and precipitation modes. The model reveals both inferred
Ian C. Cornejo, Angela K. Rowe, Michael M. Bell, Wei‐Yu Chang   +3 more
wiley   +1 more source

Ultrahigh-resolution ISAR Micro-Doppler Suppression Methodology Based on Variational Mode Decomposition and Mode Optimization

Leida xuebao
The imaging of aerial targets using Inverse Synthetic Aperture Radar (ISAR) is affected by micro-Doppler effects resulting from localized micromotions, such as rotation and vibration.
Zhongyu LI, Liang GUI, Yu HAI, Junjie WU, Dangwei WANG, Anle WANG, Jianyu YANG   +6 more
doaj   +1 more source

Classification of UAV-to-Ground Vehicles Based on Micro-Doppler Signatures Using Singular Value Decomposition and Deep Convolutional Neural Networks

IEEE Access, 2019
Attack from the unmanned aerial vehicles (UAVs) has been the main means of high-precision strike. Therefore, classifying ground vehicles from the UAV with high accuracy is of great significance.
Lingzhi Zhu, Shuning Zhang, Huichang Zhao, Si Chen, Dongxu Wei, Xiangyu Lu   +5 more
doaj   +1 more source

A Luminescent PEI/Cy5‐Citrate‐Functionalized Carbonated Apatite Nanoplatform for In Vitro Gene Delivery and In Vivo Traceability

Small, EarlyView.
A luminescent PEI/Cy5‐citrate‐functionalized carbonated apatite nanoplatform combines biocompatibility, plasmid delivery, and Cy5‐based traceability. The system enables effective in vitro gene delivery while preserving cell viability and allows real‐time in vivo fluorescence tracking of the nanocarrier.
Laura Garrido Martín, Marta García Gallego, Raquel Fernández Penas, José Manuel Peula García, Jaime Gómez Morales, Houria Boulaiz   +5 more
wiley   +1 more source

Endocytosis‐independent cytosolic entry of messenger RNA via fluorous bilayer zippering attenuating Toll‐like receptor signaling and enables ischemic tissue salvage

Smart Molecules, EarlyView.
The present study establishes a paradigm shift in synthetic mRNA delivery through the convergence of three orthogonal chemistries—perfluoro‐acylation, bio‐orthogonal click cross‐linking, and disulfide reduction—within a single, modular polymer architecture. Abstract A fundamental constraint of conventional messenger RNA (mRNA) delivery systems is their
Yue Wang, Haitao Xie, Guoqing Xiang, Yanhua Li, Changgui Tong, Hongyan Cui, Qixian Chen, Haidong Li, Yan Zhao   +8 more
wiley   +1 more source