Renjie Zhu

ORCID: 0000-0001-7982-4640
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About
Contact & Profiles
Research Areas
  • Radio Astronomy Observations and Technology
  • Astronomical Observations and Instrumentation
  • GNSS positioning and interference
  • Pulsars and Gravitational Waves Research
  • Cancer-related molecular mechanisms research
  • Geophysics and Gravity Measurements
  • Circular RNAs in diseases
  • Astronomy and Astrophysical Research
  • Astrophysics and Cosmic Phenomena
  • Advanced Computational Techniques and Applications
  • Advanced Frequency and Time Standards
  • Superconducting and THz Device Technology
  • Advancements in PLL and VCO Technologies
  • Particle accelerators and beam dynamics
  • Photonic and Optical Devices
  • Seismic Waves and Analysis
  • Advanced Wireless Communication Techniques
  • Cryptographic Implementations and Security
  • Gamma-ray bursts and supernovae
  • Particle Accelerators and Free-Electron Lasers
  • MicroRNA in disease regulation
  • T-cell and Retrovirus Studies
  • Magnetic confinement fusion research
  • Embedded Systems and FPGA Design
  • Digital Filter Design and Implementation

NARI Group (China)
2025

Shanghai Astronomical Observatory
2010-2023

Shanghai East Hospital
2019-2022

Naval University of Engineering
2019-2020

University of Chinese Academy of Sciences
2014-2019

Chinese Academy of Sciences
2006-2018

Max Planck Institute for Gravitational Physics
2005-2006

Eaton (United States)
2006

Max Planck Innovation
2005

Max Planck Society
2005

The GEO 600 gravitational wave detector uses advanced technologies including signal recycling and monolithic fused-silica suspensions to achieve a sensitivity close the kilometre scale LIGO VIRGO detectors. As soon as design of is reached, will be operated part worldwide network acquire data scientific interest. limited infrastructure at site does not allow for major upgrade detector. Hence collaboration decided improve by small sequential upgrades some which tested in prototypes first....

10.1088/0264-9381/23/8/s26 article EN Classical and Quantum Gravity 2006-03-29

Of all the large interferometric gravitational-wave detectors, German/British project GEO600 is only one which uses dual recycling. During four weeks of international S4 data-taking run it reached an instrumental duty cycle 97% with a peak sensitivity 7 × 10−22 Hz−1/2 at 1 kHz. This paper describes status during and improvements thereafter.

10.1088/0264-9381/23/8/s10 article EN Classical and Quantum Gravity 2006-03-24

In order to protect the safety of LNG carrier, onboard equipment, and personnel, it is necessary monitor liquid level, temperature, pressure carrier. case emergency, carrier side shore equipment should be turned off alarmed. Therefore, this article designs a monitoring system. Firstly, overall architecture system was designed, consisting management layer, control device layer; subsequently, its functions were including ESD emergency shutdown trigger/reset, cargo tank protection, sea/port...

10.1117/12.3044968 article EN 2025-01-16

Immune system disorder is associated with metastasis of triple-negative breast cancers (TNBCs). A robust, individualized immune-related genes (IRGs)-based classifier was aimed to develop and validate in our study precisely estimate the axillary lymph node (ALN) status preoperatively patients early-stage TNBC. We first analyzed RNA sequencing profiles TNBC from The Cancer Genome Atlas database by using bioinformatics approaches, screened 23 differentially expressed IRGs. 9-gene panel...

10.1080/21691401.2019.1703731 article EN cc-by Artificial Cells Nanomedicine and Biotechnology 2019-12-20

By regulating complex functional processes, circRNAs are crucial in the development of different cancers. Nevertheless, most papillary thyroid cancer metabolic reprogramming remain unknown.The expression circRNA was assessed by qRT-PCR tissues and cell lines. Cell proliferation glucose intake experiments were performed certain kit. Transwell assays wound healing to investigate function metastasis. In addition, a serious molecular conducted determine exact mechanism circRAD18. Luciferase...

10.21037/gs-21-481 article EN Gland Surgery 2021-08-01

Circular RNAs (circRNAs) are a type of non-coding RNA which play an important role in the regulation biological processes various malignant tumors. However, potential molecular mechanisms and roles circRNAs colorectal cancer (CRC) remain unelucidated.In current study, we analyzed data high-throughput microarray sequencing to screen differentially expressed CRC. Cell counting kit-8 (CCK-8), colony-formation, transwell, mouse xenograft models immunohistochemistry assays were used explore...

10.21037/atm-21-3930 article EN Annals of Translational Medicine 2021-08-01

Long noncoding RNA 00703 (LINC00703) was found originating from a region downstream of Kruppel-like factor 6 (KLF6) gene, having 2 binding sites for miR-181a. Since KLF6 has been reported as target miR-181a in gastric cancer (GC), this study aims to investigate whether LINC00703 regulates the miR-181a/KLF6 axis and plays functional role GC pathogenesis.GC tissues, cell lines, nude mice were included study. protein immunoprecipitation (RIP) pull-down assays used evaluate interaction between...

10.5230/jgc.2019.19.e43 article EN cc-by-nc Journal of the Korean Gastric Cancer Association 2019-01-01

China is planning to launch a relay satellite in the coming years with payload for Earth-Moon Very-Long-Baseline Interferometer (VLBI) observation research and scientific applications, known as Lunar Orbit VLBI Experiment (LOVEX) system. This system will perform lunar orbit experiments world, improve accuracy of planetary spacecraft determination capabilities astrophysics astrometry. Prior launch, key technologies must be verified, so we have established LOVEX ground validation similar...

10.1109/tim.2023.3282288 article EN IEEE Transactions on Instrumentation and Measurement 2023-01-01

Very-long-baseline interferometry (VLBI) is a type of astronomical used in radio astronomy. VLBI digital backend wideband data acquisition system with dedicated real time processing algorithms implemented and installed each station. The institutes American, Europe, Japan China have start to develop backends 2000s. first named Chinese Data Acquisition System (CDAS) developed by Shanghai Astronomical Observatory (SHAO) was finished 2009. It has four intermediate frequency (IF) input channels...

10.23919/piers.2018.8597987 article EN 2018 Progress in Electromagnetics Research Symposium (PIERS-Toyama) 2018-08-01

Abstract The Five-hundred-meter Aperture Spherical radio Telescope (FAST) is the largest single-dish telescope in world, and now being commissioned after first light September 2016. Very long baseline interferometry (VLBI) among key science topics according to original design. FAST VLBI system has been established, fringe successfully obtained. will significantly improve sensitivity of existing networks future, some projects need high benefit from its participation.

10.1088/1674-4527/20/5/74 article EN Research in Astronomy and Astrophysics 2020-05-01

The function of MALAT1, a long non-coding RNAs (lncRNA), in HER2- positive breast cancer remains largely unexplored.This study aimed to investigate the effect MALAT1 on tumor development HER2-positive cancer.We detected expression cells and tissues, analyzed effects cell proliferation lines (BT-474 SKBR3). A mouse xenograft model was established for detecting cancer.As result, remarkably up-regulated both tissues. In addition, silencing inhibited vitro vivo. Furthermore, knockdown by shRNA...

10.2174/1568009621666210618164300 article EN Current Cancer Drug Targets 2021-06-21

Background: Natural killer/T-cell lymphoma (NKTL) is difficult to treat. Circular RNAs (circ RNAs) have been implicated in tumorigenesis. However, the function of circKIF4A NKTL has not investigated. Methods: QPCR analysis was used compare levels cell lines versus normal lines. Kaplan-Meier survival assess effect on prognosis NKTL. The correlation between clinicopathological features and expression examined using cox regression analysis. Luciferase reporter, RNA immunoprecipitation...

10.3390/cancers14194950 article EN Cancers 2022-10-09

Chinese Space VLBI was selected as a background research project to further refine scientific objectives and overcome key technologies in 2012. After three years of research, we condensed out the main space VLBI, i.e., directly imaging super massive black hole, accurate measurement mass central on mystery great energy active galactic nuclei, formation jet, acceleration collimation mechanism, etc. Important progress has been made technologies. The attitude control method with high precision...

10.1007/sspma2015-00577 article EN 2016-04-26

<p indent="0mm">Real-time signal acquisition, recording, and transmission are the important functions of very long baseline interferometry (VLBI). In Chang’e-5 (CE-5) mission, a VLBI backend is required to connect telemetry, track command (TT&amp;C) beacons, data signals from multiple probes, such as orbiter, ascender, lander, extragalactic radio source in time. Due frequency points, large dynamic range, complex spectrum form probe signals, existing astronomical backends do not meet...

10.1360/sspma-2021-0076 article EN Zhongguo kexue. Wulixue Lixue Tianwenxue 2021-05-28

Very Long Baseline Interferometry (VLBI) is an important radio astronomy technology, it has high spatial resolution, widely used in deep space probes precision measurements. Correlator the VLBI core data pre-processing equipment, a complex speed signal processing system. In recent years, with development of Field Programmable Gate Array (FPGA) lot performance digital platforms based on FPGA chip have appear. Shanghai astronomical observatory, we designed series hardware correlators and...

10.23919/piers.2018.8597645 article EN 2018 Progress in Electromagnetics Research Symposium (PIERS-Toyama) 2018-08-01

VLBI (Very Long Baseline Interferometry) technology is a high resolution astronomy observation method, which combines several telescopes to achieve the of large telescope. Because measurement precision technology, it applied accurate positioning quasars and changes baseline distance direction within range thousands kilometers. As everybody knows, we provide moon satellite orbit information by using technology. The digital backend always subject Shanghai astronomical observatory. And core...

10.23919/piers.2018.8598083 article EN 2018 Progress in Electromagnetics Research Symposium (PIERS-Toyama) 2018-08-01

它利用多架射电望远镜同时观测同一目标源, 对接收到的信号进行干涉从而得到 目标源的空间位置信息.该技术广泛地应用于天体物理、天体测量、空间大地测量等领域.由于其超 高的空间角位置测量能力, VLBI 技术也作为深空探测器的测量手段之一, 与测速、测距一起为探测 器提供测定轨结果.目前美国宇航局

10.1360/112013-110 article ZH-CN Scientia Sinica Informationis 2014-02-01

A time-interval measuring module (TIMM), which achieves precision about 50-60 picoseconds (RMS), is integrated on Xilinx's Virtex 4 FPGA. Implementation a TIMM FPGA provides not only high scale of integration, but also higher and shorter dead time compared to traditional methods. Principle operation, architecture the prototype construction this are presented.

10.1109/icimw.2006.368626 article EN 2006-09-01
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