A5114910522- Advanced SAR Imaging Techniques
- Synthetic Aperture Radar (SAR) Applications and Techniques
- Soil Moisture and Remote Sensing
- Radar Systems and Signal Processing
- Ocean Waves and Remote Sensing
- Microwave Imaging and Scattering Analysis
- Geophysics and Gravity Measurements
- Estrogen and related hormone effects
- Cryospheric studies and observations
- Geophysical Methods and Applications
- Oceanographic and Atmospheric Processes
- Advanced Surface Polishing Techniques
- Advanced machining processes and optimization
- Sparse and Compressive Sensing Techniques
- Underwater Acoustics Research
- Arctic and Antarctic ice dynamics
- Remote-Sensing Image Classification
- Cancer therapeutics and mechanisms
- Face and Expression Recognition
- Gait Recognition and Analysis
- Bioactive Compounds and Antitumor Agents
- Receptor Mechanisms and Signaling
- Photoacoustic and Ultrasonic Imaging
- Ultrasonics and Acoustic Wave Propagation
- Machine Learning and Data Classification
National Space Science Center
2009-2024
Chinese Academy of Sciences
2014-2024
China Centre for Resources Satellite Data and Application
2024
Beihang University
2024
Ningbo University of Technology
2024
Jiangsu University of Science and Technology
2024
University of Chinese Academy of Sciences
2007-2023
Wenzhou University
2022
Huashan Hospital
2008-2021
Fudan University
2008-2021
Abstract The MerR-family proteins represent a unique family of bacteria transcription factors (TFs), which activate in manner distinct from canonical ones. Here, we report cryo-EM structure B. subtilis activation complex comprising six-subunit (2αββ‘ωε) RNA Polymerase (RNAP) core enzyme, σ A , promoter DNA, and the ligand-bound BmrR, prototype TFs. reveals that RNAP BmrR recognize upstream DNA opposite faces induce four significant kinks −35 element to −10 cooperative manner, restores...
We consider here the problem of image classification when more than one visual feature are available. In these cases, Bayes fusion offers an attractive solution by combining results different classifiers (one classifier per feature). This is a general form so-called "naive Bayes" approach. Analyzing performance with respect to Bayesian over joint distribution, however, tricky. On hand, it well-known that latter has lower bias former, unless features conditionally independent, in which case...
In this paper, We introduce the Interferometric Imaging Radar Altimeter (InIRA), first spaceborne wide-swath ocean radar altimeter on board Chinese Tiangong-2 space laboratory, which was launched September 15, 2016. The major mission of InIRA is to validate mechanism and design new generation altimeter, as well conduct preliminary application researches. in-orbit observation results demonstrate that it capable measuring dynamic sea surface height with wide swath, waves different scales...
In the present study, anionic lipid/peptide/DNA (LPD) complexes consisting of pH-sensitive liposome and protamine were introduced as carriers targeting RAW 264.7 cell line, which had been reported to be difficult for transfection. The LPD physically characterized. pH sensitivities sizes liposomes investigated. zeta potentials altered significantly with addition sulfate liposomes. It was demonstrated that produced an increase in stability plasmid DNA against DNase I. TEM showed size...
This paper presents for the first time results of marine gravity recovery using ocean observation data acquired by Tiangong-2 interferometric imaging radar altimeter (TG2 InIRA) which demonstrate not only balanced accuracies north and east components deflection vertical (DOV) as envisaged, but also improved spatial resolutions DOV compared with that conventional altimeters (CAs). Moreover, much higher measurement efficiency owing to wide-swath capability great potential in accuracy...
The interferometric imaging radar altimeter (InIRA) onboard Chinese Tiangong-2 Space Laboratory is a Ku-Band two-channel radar, which aims to test and validate the mechanism of wide-swath ocean topography measurement through interferometry with short baseline at small incidence angles, as well some key technologies, e.g. high-power solid state power amplifier (SSPA), from accurate sea surface height (SSH) can be retrieved. was launched on Sept. 15, 2016, currently InIRA works very well. In...
Radar imaging experiment of ground moving target a light rail-way train by Ku-band radar with two receiving channels is introduced results presented. Both coherent and incoherent as well co-pol cross-pol interferometric were conducted SAR amplitude images interferometric-phase obtained compared. The along-track clearly show the speed variation train, i.e., traveled at an increasing in one direction decreasing opposite direction. indicate that for bistatic or multi-static imaging,...
In this paper we will show that by using the nadir interferometric two beams, obtained phase (InPha) can help us to estimate baseline status. The basic idea is InPha related actual observation geometry, i.e. status, height of platform, incidence angles as well topography target. If rule out possibility variation platform or target, then relate status (rolling angle and length). An airborne altimetry experiment over lake with multi-carrier frequencies was carried test promising results were...
Ground moving trains have been imaged by many airborne and spaceborne SAR systems, but seldom ground-based radar system. In this paper, we introduce our experiment on train imaging a Ka-band system with 1 GHz bandwidth. The bandwidth is realized synthesizing 10 subpulses in frequency-jumped burst (FJB). High-resolution images for were obtained the electromagnetic scattering characteristics analyzed. Radar show that at different aspect angle, strong centers are may changeable.
Tiangong-2 Interferometric imaging radar altimeter (InIRA) applies the technology of small incident angle and high precision interferometric phase measurement, which has characteristics wide swath, accuracy height measuring. Compared with traditional altimeter, InIRA can realize much wider swath obtain SAR image observed area, so there is a requirement onboard memory downlink speed for InIRA. As result, we need to investigate data compression technique reduce rate. an efficient algorithm...
Oestrogen related receptor α participated in the regulation of oxidative metabolism and mitochondrial biogenesis, was overexpressed many cancers including triple-negative breast cancer. A set new ERRα inverse agonists based on p-nitrobenzenesulfonamide template were discovered compound 11 with high potent activity (IC50 = 0.80 μM) could significantly inhibit transcription ERRα-regulated target genes. By regulating downstream signalling pathway, suppress migration invasion ER-negative...
Noise radar has been applied in many fields since it was proposed more than 50 years ago. However, not to interferometric SAR imaging yet as far we know. This paper introduces our recent work on noise radar. An system developed which can transmit both chirp signal and chaotic (CNS) at multiple carrier frequencies. airborne experiment with this by transmitting signals carried out, the data were processed show capability of CNS. The results shows that although phase quality CNS is degraded due...
A moving train was imaged by a Ka‐band interferometric (In) radar of 2 GHz bandwidth working at the dechirping model. Two images from two channels as well their In image were obtained after estimating speed and direction train. The plots phases (InPhes) along exhibits periodic fluctuations, which are resulted back forth motions both locomotive other compartments when trains ahead, this can be attributed to micro‐motion (m‐M) As far it is known, first time experimentally demonstrate m‐M...