Article
Geochemistry & Geophysics
Thomas C. Stone
Summary: This article studies the potential impact of lunar radiometric measurements obtained from an orbiting platform. The study finds that lunar irradiance is influenced by spacecraft motion and phase angle, but the changes are relatively small. By planning observations, the variations in target irradiance can be minimized.
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
(2022)
Article
Transportation
Vishal C. Kummetha, Mohsen Kamrani, Sisinnio Concas, Achilleas Kourtellis, Omkar Dokur
Summary: This research focuses on detecting and mitigating traffic congestion on freeways by combining traditional traffic data with newer sources such as Bluetooth and connected vehicles. The developed algorithm predicts the onset and intensity level of congestion using real-time traffic measurements and can be applied to different types of congestion. The study also demonstrates the effectiveness of using connected vehicle data for calibrating simulation models and implementing mitigation strategies.
JOURNAL OF INTELLIGENT TRANSPORTATION SYSTEMS
(2022)
Article
Clinical Neurology
Maggie D. Clarke, Eric Larson, Erica R. Peterson, Daniel R. McCloy, Alexis N. Bosseler, Samu Taulu
Summary: This paper discusses the specific challenges and solutions in infant MEG studies, covering a wide range of pre-processing steps and emphasizing the importance of proper signal processing.
FRONTIERS IN NEUROLOGY
(2022)
Article
Computer Science, Information Systems
Jianghui Cai, Yuqing Yang, Haifeng Yang, Xujun Zhao, Jing Hao
Summary: This article proposes a two-stage data pre-processing framework called ARIS for noise identification and data reduction. The framework improves the accuracy of data analysis by identifying and removing noise, and reduces the impact of noise on the results.
ACM TRANSACTIONS ON KNOWLEDGE DISCOVERY FROM DATA
(2022)
Article
Astronomy & Astrophysics
Werner Poetzi, Astrid Veronig, Robert Jarolim, Jenny Marcela Rodriguez Gomez, Tatiana Podlachikova, Dietmar Baumgartner, Heinrich Freislich, Heinz Strutzmann
Summary: The Kanzelhohe Observatory for Solar and Environmental Research (KSO) has been in continuous operation since its establishment in 1943, focusing on regular observation of the Sun and collecting a significant amount of data. This article describes the separate processing steps from data acquisition to high level products, including quality classification, CLV profile construction, and an overview of data products. Access to data products and detailed information about FITS headers, file naming, and data hierarchy is also provided.
Article
Engineering, Aerospace
Kathleen Harmon, Brad Arnold, Michael Levesque, Mark Johnston, Stephen Lichten, Patricia Lock, David Berry, Sami Asmar, Timothy Pham
Summary: NASA's Deep Space Network (DSN) plays a crucial role in deep space exploration by providing telecommunication services to users worldwide. This paper discusses the lessons learned from DSN's preparations for the Artemis I mission, including performance and reliability, network loading, interface management, international collaboration, and the role of international partners. These lessons will be applied to future missions, including Artemis II and beyond.
Article
Computer Science, Artificial Intelligence
Christoph Anders, Gabriel Curio, Bert Arnrich, Gunnar Waterstraat
Summary: The performance of time-series classification of EEG data varies across paradigms and participants. This study examines the influence of spatial filter optimization methods and non-linear data transformation on classification performance. It proposes an algorithm for prototyping and benchmarking preprocessing pipelines for a specific paradigm and dataset. The study found that individual signal-to-noise ratio explained up to 74% of the performance differences between subjects.
NETWORK-COMPUTATION IN NEURAL SYSTEMS
(2023)
Article
Materials Science, Multidisciplinary
Dewen Jiang, Zhenyang Wang, Kejiang Li, Jianliang Zhang, Le Ju, Liangyuan Hao
Summary: In this study, a prediction model based on support vector regression (SVR) is constructed to predict the gas utilization rate (GUR) of a blast furnace (BF) at different time points. Pre-processing the raw data using the 3 sigma criterion leads to more accurate predictions.
Article
Chemistry, Analytical
Giverny Robert, Ryan Gosselin
Summary: In this study, a method using multiblock partial least squares (MBPLS) is proposed to compare the impact of pre-processing techniques on spectral data and regression models. Superloadings are used to provide qualitative and quantitative information on preprocessed data, aiding in the selection of appropriate pre-processing techniques for a dataset.
ANALYTICA CHIMICA ACTA
(2022)
Article
Automation & Control Systems
Alessandro Baldini, Riccardo Felicetti, Francesco Ferracuti, Alessandro Freddi, Sabrina Iarlori, Andrea Monteriu
Summary: This article presents a real-time fault detection method for dealing with propeller faults on multirotor drones using only the on-board Inertial Measurement Unit (IMU) data. The proposed method has low computational requirements and achieves a classification accuracy of up to 93.37% (98.21%). It can be easily generalized to other multirotor vehicles and has low space and time complexity.
ENGINEERING APPLICATIONS OF ARTIFICIAL INTELLIGENCE
(2023)
News Item
Engineering, Electrical & Electronic
Andrew Jones
Summary: The Chinese spacecraft Chang'e-4 successfully landed on the moon, with the team waiting nervously for vital signals to confirm a soft landing. When the spectral signals were visible, everyone cheered enthusiastically, marking the sweet payoff of years of hard work for Su Yan and her team.
Article
Engineering, Aerospace
Lin Li, Li Wang, Li Yuan, Ran Zheng, Yanpeng Wu, Jie Sui, Jun Zhong
Summary: Micro-vibration caused by disturbance sources onboard spacecraft can severely degrade the working environment of high-precision space optical instruments (HPSOIs) in orbit. Notable micro-vibration suppression methods have been developed in recent decades, mainly focusing on disturbance source suppression, payload isolation, and transfer path suppression. Passive isolation techniques are commonly used in aerospace engineering, while active isolators are proposed for dealing with low-frequency vibrations in spacecraft. Additionally, emerging advanced suppression methods utilizing the advantages of IOS have also been reported.
Article
Computer Science, Artificial Intelligence
Maria Novo-Loures, Yeray Lage, Reyes Pavon, Rosalia Laza, David Ruano-Ordas, Jose Ramon Mendez
Summary: Data mining has become a powerful tool for exploring unseen connections between variables and facts in different domains. However, current data analysis frameworks, specifically those using pipelining schemes, lack early error detection techniques and developer support mechanisms. In this study, a new pipelining framework, BDP4J, is introduced with improved features to address these limitations.
INTERNATIONAL JOURNAL OF INTERACTIVE MULTIMEDIA AND ARTIFICIAL INTELLIGENCE
(2022)
Review
Food Science & Technology
Haoran Gao, Rick Jorgensen, Rajsri Raghunath, Siddharth Nagisetty, Perry K. W. Ng, Venu Gangur
Summary: This study evaluated the impact of food processing on wheat allergenicity and identified fermentation and enzymatic hydrolysis as promising methods for creating novel hypo-/nonallergenic wheat products. However, further preclinical validation and human clinical trials are needed to advance the research. Five specific research concepts were also identified to facilitate the development of hypo-/nonallergenic wheat products for various industries.
COMPREHENSIVE REVIEWS IN FOOD SCIENCE AND FOOD SAFETY
(2021)
Article
Astronomy & Astrophysics
C. Garcia Marirrodriga, A. Pacros, S. Strandmoe, M. Arcioni, A. Arts, C. Ashcroft, L. Ayache, Y. Bonnefous, N. Brahimi, F. Cipriani, C. Damasio, P. De Jong, G. Deprez, S. Fahmy, R. Fels, J. Fiebrich, C. Hass, C. Hernandez, L. Icardi, A. Junge, P. Kletzkine, P. Laget, Y. Le Deuff, F. Liebold, S. Lodiot, F. Marliani, M. Mascarello, D. Mueller, A. Oganessian, P. Olivier, E. Palombo, C. Philippe, U. Ragnit, J. Ramachandran, J. M. Sanchez Perez, M. M. Stienstra, S. Thuerey, A. Urwin, K. Wirth, I. Zouganelis
Summary: The Solar Orbiter's main scientific goal is to address the central question in heliophysics: how does the Sun create and control the heliosphere? It carries ten scientific instruments towards the innermost regions of the Solar System, reaching as close as 0.28 AU from the Sun. The spacecraft's orbital inclination will be progressively increased to reach higher solar latitudes, enabling detailed studies of the polar regions of the Sun for the first time.
ASTRONOMY & ASTROPHYSICS
(2021)
Article
Geosciences, Multidisciplinary
Xing Wang, Jianjun Liu, Dawei Liu, Hai Huang, Lin Guo, Qing Zhang, Yuan Chen, Bin Liu, Wangli Chen, Xin Ren, Chunlai Li
Summary: The Yutu-2 rover of the Chang'E-4 mission encountered four special rocks during its exploration. The onboard VNIS collected their spectral data and revealed varying degrees of dust coverage on the rock surfaces. The analysis suggests that these rocks may not originate from the lunar upper crust.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Multidisciplinary Sciences
Jianjun Liu, Bin Liu, Xin Ren, Chunlai Li, Rong Shu, Lin Guo, Songzheng Yu, Qin Zhou, Dawei Liu, Xingguo Zeng, Xingye Gao, Guangliang Zhang, Wei Yan, Hongbo Zhang, Lihui Jia, Shifeng Jin, Chunhua Xu, Xiangjin Deng, Jianfeng Xie, Jianfeng Yang, Changning Huang, Wei Zuo, Yan Su, Weibin Wen, Ziyuan Ouyang
Summary: The distribution, characteristics, and sources of lunar water are still controversial. In this study, the Chang'E-5 mission conducted in-situ spectral observations and laboratory analysis of returned samples to investigate the hydroxyl contents in lunar soils. The results show that the hydroxyl contents in the Chang'E-5 landing site are relatively weak, consistent with predictions from remote sensing and ground-based telescopic data. The study also suggests that apatite may be an important source of excess hydroxyl observed in young mare regions.
NATURE COMMUNICATIONS
(2022)
Article
Astronomy & Astrophysics
Qing Zhang, Dawei Liu, Jianjun Liu, Lin Guo, Bin Xue, Jianfeng Yang, Benyong Yang, Xing Wang, Hai Huang, Bin Liu, Wangli Chen, Xin Ren
Summary: This study introduces a reflectance calibration method to convert radiance to reflectance factor using the MSCam calibration target. By characterizing the photometric properties of the calibration target and developing a reflectance model, high precision calibration is achieved. The in-flight derived reflectance factors are consistent with laboratory measurements, ensuring accurate spectral interpretation of Martian surface properties.
Article
Spectroscopy
Zhaopeng Chen, Xin Ren, Jianjun Liu, Weiming Xu, Yizhong Zhang, Xiangfeng Liu, Qin Zhou, Wangli Chen
Summary: This article introduces the calibration method for the laser-induced breakdown spectroscopy (LIBS) of the Mars Surface Composition Detector (MarSCoDe). By using the natural gradient boosting probabilistic prediction (NGBoost) ensemble learning method, the probabilistic major element composition (PMEC) models were established and proved to be accurate and robust through testing and validation.
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY
(2022)
Article
Multidisciplinary Sciences
Dawei Liu, Xing Wang, Jianjun Liu, Bin Liu, Xin Ren, Yuan Chen, Zhaopeng Chen, Hongbo Zhang, Guangliang Zhang, Qin Zhou, Zhoubin Zhang, Qiang Fu, Chunlai Li
Summary: Laboratory analyses on the Chang'E-5 lunar soil samples have revealed that lunar late-stage mare basalts contain abundant iron-rich high-Ca pyroxene instead of olivine. This finding is significant for understanding the thermal evolution and young volcanic activities on the Moon.
NATURE COMMUNICATIONS
(2022)
Article
Astronomy & Astrophysics
Jia Li, Hongyu Li, Xin Ren, Dong Zhao, Long Xu
Summary: This paper presents an approach to remove dust storms on Mars by utilizing image dehazing knowledge obtained on Earth. By collecting remote-sensing images and selecting clean and dusty image pairs, a deep model is trained to eliminate dust and improve the topographical and geomorphological details of Mars.
ASTRONOMICAL JOURNAL
(2023)
Article
Environmental Sciences
Yizhong Zhang, Xin Ren, Zhaopeng Chen, Wangli Chen, Zhenqiang Zhang, Xiangfeng Liu, Weiming Xu, Jianjun Liu, Chunlai Li
Summary: China's first Mars rover, Zhurong, successfully landed in the southern region of Utopia Planitia on May 14, 2021. Equipped with MarSCoDe, Zhurong is able to analyze the material composition of the Martian surface using LIBS, SWIR, and a microimaging camera. However, analysis shows that the spectra acquired by MarSCoDe's LIBS experience wavelength drift, which affects the accuracy of elemental analysis. This paper establishes a wavelength calibration method based on a quadratic function relationship between the drift and CCD temperature of the MarSCoDe spectrometer.
Article
Multidisciplinary Sciences
Xiaoguang Qin, Xin Ren, Xu Wang, Jianjun Liu, Haibin Wu, Xingguo Zeng, Yong Sun, Zhaopeng Chen, Shihao Zhang, Yizhong Zhang, Wangli Chen, Bin Liu, Dawei Liu, Lin Guo, Kangkang Li, Xiangzhao Zeng, Hai Huang, Qing Zhang, Songzheng Yu, Chunlai Li, Zhengtang Guo
Summary: Landforms on the Martian surface provide valuable insights into past surface processes, but the modern hydroclimatic conditions on Mars are still not well understood. This study reports the discovery of various surface features on salt-rich dunes in southern Utopia Planitia, suggesting the involvement of saline water from thawed frost/snow as the most likely cause. The findings shed light on the more humid conditions of the modern Martian climate and have important implications for future exploration missions searching for signs of extant life.
Article
Geosciences, Multidisciplinary
Qing Zhang, Dawei Liu, Xin Ren, Xing Wang, Lin Guo, Zhaopeng Chen, Bin Liu, Wangli Chen, Wei Yan, Jianjun Liu
Summary: This study focused on using the Multispectral Camera on the Zhurong rover to investigate atmospheric optical depth and dust deposition rate on Mars, and discovered a distinctive deposition process compared to other rovers or landers.
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Astronomy & Astrophysics
Zongyu Zhang, Yan Su, Shun Dai, Jianfeng Zhou, Xin Ren, Jianjun Liu, Chunlai Li
Summary: The Lunar Regolith Penetrating Radar (LRPR) on the Chang'E 5 lander is the first antenna-array radar deployed for the exploration of extraterrestrial objects. It can measure the subsurface structure of the moon with a resolution of about 10 cm. This study presents a cable delay calibration method and an imaging method based on radio astronomy to visualize the subsurface structure of the Chang'E-5 landing site. The radar images derived from LRPR observations show consistency and match the drilling process record.
Article
Multidisciplinary Sciences
Jianjun Liu, Xiaoguang Qin, Xin Ren, Xu Wang, Yong Sun, Xingguo Zeng, Haibin Wu, Zhaopeng Chen, Wangli Chen, Yuan Chen, Cheng Wang, Zezhou Sun, Rongqiao Zhang, Ziyuan Ouyang, Zhengtang Guo, James W. Head, Chunlai Li
Summary: According to orbital observations, Mars experienced a recent 'ice age' approximately 0.4-2.1 million years ago, during which a latitude-dependent ice-dust mantle (LDM) was formed. Subsequently, a decrease in obliquity amplitude led to an 'interglacial period' in which the lowermost latitude LDM ice was eroded and returned to the polar cap. However, there is a lack of in situ surface observations in lower- to mid-latitudes to support a glacial-interglacial transition consistent with atmospheric circulation models.
Review
Astronomy & Astrophysics
Xiangfeng Liu, Weiming Xu, Hai Qi, Xin Ren, Jianjun Liu, Luning Li, Zhixin Yan, Chongfei Liu, Jun Chen, Zhenqiang Zhang, Chunlai Li, Rong Shu
Summary: The Mars Surface Composition Detector (MarSCoDe) is a remote sensing instrument on the Zhurong rover that uses LIBS and SWIR to detect the chemical composition of Martian soils and rocks. It is equipped with a set of onboard calibration targets, the MarSCoDe calibration target (MCCT) set, to assess the instrument's performance and calibrate its response. This paper discusses the selection, development, characterization, and testing of the MCCT set, as well as the analysis of the collected LIBS spectra under different atmospheric scenarios.
SPACE SCIENCE REVIEWS
(2023)
Article
Astronomy & Astrophysics
Guangliang Zhang, Hongbo Zhang, Chunlai Li, Jianjun Liu, Qin Zhou, Bin Liu, Dawei Liu, Mingchun Dong, Wei Zuo, Xin Ren, Zan Wang
Summary: The Chang'E-5 mission achieved China's first automatic lunar surface sampling return. The Ground Research and Application System is responsible for storing, preparing, and processing the returned lunar samples. The Lunar Sample Laboratory has storage, processing, and preparation functions for the original lunar samples, allowing long-term storage and processing in a high-purity nitrogen environment on Earth. The mission returned scooped and drilled samples, and this study developed detailed protocols for their storage, preparation, and processing. After being returned to the Lunar Sample Laboratory, the samples undergo three stages of processing, storage, and preparation. The prepared samples will be used to analyze their physical and chemical properties and describe their basic characteristics, providing important information and technical support for subsequent scientific research.
SCIENTIA SINICA-PHYSICA MECHANICA & ASTRONOMICA
(2023)
Article
Geochemistry & Geophysics
Wei Yan, Xin Ren, Jianjun Liu, Li Zhang, Wangli Chen, Dong Wang, Qiang Fu, Xu Tan, Xiaoxia Zhang, Haibin Ai, Baoqian Wang, Quanquan Zhi, Zichen Huang, Chen Song
Summary: This study describes the stereo imaging strategy of the high-resolution imaging camera (HiRIC) used in China's first Mars exploration mission (Tianwen-1), and provides a topographic dataset for the Tianwen-1 landing area. The data has significant implications for studying Mars geomorphology and conducting scientific research on Mars.
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
(2022)
Article
Optics
Fu Lianbo, Liu Jianjun, Ren Xin, Yan Wei, Kong Deqing, Chen Wangli, Huang Hai, Gao Xingye
Summary: With the rapid development of China's planetary exploration project, this paper uses a high-precision 3D laser scanner to measure and analyze the deformation of large antenna panels, achieving efficient and accurate deformation monitoring.
ACTA PHOTONICA SINICA
(2022)
