Results 61 to 70 of about 14,928 (214)

Review of High-resolution Imaging Techniques of Wideband Inverse Synthetic Aperture Radar

Leida xuebao, 2020
At present, the emphasis of Inverse Synthetic Aperture Radar (ISAR) systems on the characteristics of high carrier frequency, wide bandwidth, multi-polarization capability, distribution, and networking has led to the development and progress of ISAR ...
Biao TIAN, Yang LIU, Pengjiang HU, Wenzhen WU, Shiyou XU, Zengping CHEN   +5 more
doaj   +1 more source

Use of Nuclear Magnetic Resonance Imaging Angiography to Follow-Up Arterial Remodeling in an Animal Model [PDF]

, 1998
Appropriately sized arteries in small animals may be possible models for studying the remodeling process as occurs after arterial balloon injury in humans. Magnetic resonance imaging (MRI) is able to noninvasively image tissue in vivo.
Berthold Höfling, Johannes Schirmer, Losordo DW, Markus Schwaiger, Mintz GS, Serap Esin, Sigrid Nikol, Stephan Nekolla, Tanya Y. Huehns, Toussaint JF   +9 more
core   +1 more source

Managing the meniscus Part 2: Traumatic tear patterns, biologic augmentation, transplantation, innovation and future research

Knee Surgery, Sports Traumatology, Arthroscopy, EarlyView.
Abstract Acute, traumatic meniscus tears are common and should be repaired whenever possible. However, the biological age of the patient, along with the specific tear morphology, may significantly influence the selection of the repair technique, expected clinical outcomes and the postoperative rehabilitation protocol.
Armin Runer, Matthew P. Kolevar, Ehab M. Nazzal, Jonathan D. Hughes, Sebastian Kopf, Aaron J. Krych, Michael T. Hirschmann, Robert F. LaPrade, Alan Getgood, Tim Spalding, Robert Prill, Maria Tuca, Matthieu Ollivier, Sebastian Siebenlist, Sachin Tapasvi, Volker Musahl   +15 more
wiley   +1 more source

OFDM-ISAR Sparse Optimization Imaging and Motion Compensation

Leida xuebao, 2016
Orthogonal Frequency Division Multiplexing (OFDM) technology has been utilized in radar imaging to obtain high-resolution range profiles without inter-range cell interference.
Wu Min, Zhang Lei, Liu Songyang, Xing Mengdao   +3 more
doaj   +1 more source

Multiplying Elements of Fragmentation? Polycentrism, the Launcher Crisis and the Future of Europe in Space

Global Policy, EarlyView.
ABSTRACT This article explores the current controversies surrounding the European Ariane launcher and its implications for the future of European space governance. The Ariane program, historically a symbol of European technopolitical integration, faces mounting challenges due to delays, rising costs and increasing competition from private actors like ...
Nina Klimburg‐Witjes, Joseph Popper
wiley   +1 more source

A Composite Network for CS ISAR Integrating Deep Adaptive Sampling and Imaging

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Compressive sensing (CS) actively contributes to inverse synthetic aperture radar (ISAR) imaging with less raw data. The design of the measurement matrix and the development of reconstruction methods are critical processes in CS ISAR imaging.
Lianzi Wang, Ling Wang, Miguel Heredia Conde, DaiYin Zhu   +3 more
doaj   +1 more source

Efficient range alignment algorithm for real-time range-Doppler algorithm [PDF]

, 2017
When deriving a range-Doppler image or a time-frequency image of a fast-maneuvering target at long range, existing range alignment methods yield poor results due to the large numbers of range profiles (RPs) and range bins that are required for this task.
Bae, J.-H., Jung, J.-H., Kim, K.-T., Kim, S.-H., Park, S.-H.   +4 more
core   +1 more source

The Therapeutic Potential of Farm Dust Extracts in a Mouse Model of Eosinophilic Inflammation

Allergy, EarlyView.
Farm dust extract (FDE) treatment reduces airway eosinophilia, mucus overproduction, and MHC‐II expression on DCs, limiting antigen presentation and Th2 inflammation. It increases PD‐L1 on DCs, promoting T cell deactivation. Additionally, FDE enhances Tregs and upregulates CTLA‐4, reinforcing suppression.
Rabia Ülkü Korkmaz, Jimmy Omony, Xiaomei Tan, Markus Klotz, Guilherme Dragunas, Sirui Chen, Soni Shankhwar, Zeynep Ertüz, Christoph Müller, Mohab Ragab, Aicha Jeridi, Romina Augustin, Janna Nawroth, Theodore S. Kapellos, Bettina Rankl, Ali Önder Yildirim, Erika von Mutius   +16 more
wiley   +1 more source

Performance Analysis on ISAR Imaging of Space Targets

Leida xuebao, 2017
Usually, in traditional Inverse Synthetic Aperture Radar (ISAR) systems design and mode selection for space satellite targets, coherent integration gain in azimuth direction hardly can be analyzed, which depends on target’s motion.
Zhou Yejian, Zhang Lei, Wang Hongxian, Xing Mengdao   +3 more
doaj   +1 more source

Two Dimensional Array Imaging with Beam Steered Data

, 2013
This paper discusses different approaches used for millimeter wave imaging of two-dimensional objects. Imaging of a two dimensional object requires reflected wave data to be collected across two distinct dimensions.
Patole, Sujeet, Torlak, Murat
core   +1 more source