A5101682446- Dark Matter and Cosmic Phenomena
- Astrophysics and Cosmic Phenomena
- Escherichia coli research studies
- Solar and Space Plasma Dynamics
- Radiation Therapy and Dosimetry
- Ionosphere and magnetosphere dynamics
- Enterobacteriaceae and Cronobacter Research
- Geomagnetism and Paleomagnetism Studies
- Radiation Detection and Scintillator Technologies
- Viral gastroenteritis research and epidemiology
- Earthquake Detection and Analysis
- Influenza Virus Research Studies
- GNSS positioning and interference
- Environmental Impact and Sustainability
- Astro and Planetary Science
- Fire effects on concrete materials
- Rabies epidemiology and control
- Viral Infections and Vectors
- Scientific Research and Discoveries
- Yersinia bacterium, plague, ectoparasites research
- Sustainable Supply Chain Management
- Salmonella and Campylobacter epidemiology
- Advanced Battery Technologies Research
- International Business and FDI
- E-commerce and Technology Innovations
Chengdu University
2024
Shanghai Municipal Center For Disease Control Prevention
2010-2024
Zhuhai Institute of Advanced Technology
2024
Chinese Academy of Sciences
2019-2023
University of Chinese Academy of Sciences
2020-2023
Institute of High Energy Physics
2019-2023
Sichuan Agricultural University
2023
University of California, Los Angeles
2023
Wuhan University of Technology
2022
Wuhan University
2011-2022
The Alpha Magnetic Spectrometer (AMS) is a precision particle physics detector on the International Space Station (ISS) conducting unique, long-duration mission of fundamental research in space. objectives include precise studies origin dark matter, antimatter, and cosmic rays as well exploration new phenomena. Following 16-year period construction testing, precursor flight Shuttle, AMS was installed ISS May 19, 2011. In this report we present results based 120 billion charged ray events up...
We report the observation of new properties primary iron (Fe) cosmic rays in rigidity range 2.65 GV to 3.0 TV with 0.62×106 nuclei collected by Alpha Magnetic Spectrometer experiment on International Space Station. Above 80.5 dependence ray Fe flux is identical He, C, and O fluxes, Fe/O ratio being constant at 0.155±0.006. This shows that unexpectedly belong same class which different from Ne, Mg, Si class.Received 2 October 2020Revised 22 November 2020Accepted 9 December...
We report the observation of new properties primary cosmic rays, neon (Ne), magnesium (Mg), and silicon (Si), measured in rigidity range 2.15 GV to 3.0 TV with 1.8×10^{6} Ne, 2.2×10^{6} Mg, 1.6×10^{6} Si nuclei collected by Alpha Magnetic Spectrometer experiment on International Space Station. The Ne Mg spectra have identical dependence above 3.65 GV. three 86.5 GV, deviate from a single power law 200 harden an way. Unexpectedly, rays is different He, C, O. This shows that O are two classes rays.
We present the precision measurement of daily proton fluxes in cosmic rays from May 20, 2011 to October 29, 2019 (a total 2824 days or 114 Bartels rotations) rigidity interval 1 100 GV based on 5.5×10^{9} protons collected with Alpha Magnetic Spectrometer aboard International Space Station. The exhibit variations multiple timescales. From 2014 2018, we observed recurrent flux a period 27 days. Shorter periods 9 and 13.5 are 2016. strength all three periodicities changes time rigidity....
We present the precision measurement of 2824 daily helium fluxes in cosmic rays from May 20, 2011 to October 29, 2019 rigidity interval 1.71 100 GV based on 7.6×10^{8} nuclei collected with Alpha Magnetic Spectrometer (AMS) aboard International Space Station. The flux and proton ratio exhibit variations multiple timescales. In nearly all time intervals 2014 2018, we observed recurrent a period 27 days. Shorter periods 9 days 13.5 are 2016. strength three periodicities changes rigidity....
Precise knowledge of the charge and rigidity dependence secondary cosmic ray fluxes secondary-to-primary flux ratios is essential in understanding propagation. We report properties heavy fluorine F R range 2.15 GV to 2.9 TV based on 0.29 million events collected by Alpha Magnetic Spectrometer experiment International Space Station. The spectrum deviates from a single power law above 200 GV. heavier F/Si ratio distinctly different lighter B/O (or B/C) dependence. In particular, 10 GV, F/SiB/O...
We report the properties of sodium (Na) and aluminum (Al) cosmic rays in rigidity range 2.15 GV to 3.0 TV based on 0.46 million 0.51 nuclei collected by Alpha Magnetic Spectrometer experiment International Space Station. found that Na Al, together with nitrogen (N), belong a distinct ray group. In this group, we observe that, similar N flux, both flux Al are well described sums primary component (proportional silicon flux) secondary fluorine flux). The fraction increases for N, Na, fluxes...
We present the precision measurements of 11 years daily cosmic positron fluxes in rigidity range from 1.00 to 41.9 GV based on 3.4×10^{6} positrons collected with Alpha Magnetic Spectrometer (AMS) aboard International Space Station. The show distinctly different time variations electron at short and long timescales. A hysteresis between is observed a significance greater than 5σ rigidities below 8.5 GV. On contrary, proton similar variation. Remarkably, we found that are modulated more for 7...
The bacteria Streptococcus pneumoniae (pneumococcus) and Haemophilus influenzae type b (Hib) are leading causes of childhood pneumonia meningitis major contributors to worldwide mortality in children younger than 5 years age. Asymptomatic nasopharyngeal carriage pneumococcus Hib was determined for healthy Shanghai 2009. Children from immunization clinics were enrolled this study. Specimens the nasopharynx collected cultured Columbia chocolate agar identify pneumococcal carriage. Pneumococcal...
Objective: Rabies is a vaccine-preventable, viral zoonotic disease caused by lyssavirus. This study was aimed at analyzing the epidemiological characteristics of human rabies in Shanghai to provide valuable information support accurate prevention and control. Methods: Individual-level data on dog bites/attacks were collected from 2006 2021. Demographic characteristics, spatial seasonal patterns, correlations analyzed explore profiles. Infection risk predicted with Bayesian aggression model....
This paper presented a feasible quantitative method to evaluate carbon emissions of the remanufacturing process used vehicle CVT (Continuously Variable Transmission) gearbox. The emission evaluation is proposed, which combined with Hierarchical Relevance Analysis (HRA) theory and Emission Factor Approach (EFA). In this research, characteristics for gearbox are analyzed, various sources on system classified analyzed define boundaries system, correlation matrices among hierarchical essential...
Abstract. GNSS radio occultation (RO) plays an important role in ionospheric electron density inversion and sounding of sporadic E layers. As China's first electromagnetic satellite, China Seismo-Electromagnetic Satellite (CSES) has collected the RO data from both GPS BDS-2 satellites since March 2018. In this study, we extracted signal-to-noise ratio (SNR) CSES calculated standard deviation normalized SNR. A new criterion is developed to determine Es events, that is, when mean value...
The environment is the basis for living and development of human, eco-innovation key driver new economic growth. However, some underdeveloped regions in China, it still a challenge local government to get balance between goals environment. paper selects pulp industry, which creates tremendous pollution closely related daily life. According particular characteristics industry Sichuan Province, bamboo redesigned improve ecosystem, while increasing income farmers. From perspective game theory,...
With the continuous development and application of unmanned vehicle technology, more vehicles must work in a variety different bad weather environmental conditions, which also brings higher requirements to research perception systems. Especially foggy days or other severe complex road states becomes difficult. Therefore, improve effect weather, this paper proposes multi-functional visual system based on YOLOv5. This three aspects problem weather. First, model balance between computational...
Performance based engineering (PBE) is increasingly recognised as the gold standard for ensuring structural safety under extreme loading conditions such a post-flashover fire. While no universally agreed methodology exists implementing PBE various kinds of loadings in general, there are three clearly defined stages doing so order to design or assess resistance fire loading. The characterised first stage, which may range from simple prescribed time-temperature relationships if fires adopted,...
Abstract We model and examine the research development (R&D) intensity of a focal industry from an inter-industry network perspective. More specifically, we estimate how industry’s R&D investment is affected by partner (suppliers customers) industries’ expenditure. also investigate impact overall economy on expenditure finally position in supply chain moderates economy’s found that, general, positively associated with its intensity. In addition, growth rate economy. Finally, that...