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Article
Open AccessNitrogen addition has divergent effects on phosphorus fractions in four types of soils
Globally increasing atmospheric nitrogen (N) deposition has altered soil phosphorus (P) transformations and availability, and thereby influenced structure and function of terrestrial ecosystems. Edaphic charac...
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Article
Equalization for the low-response cells of the AMS-02 electromagnetic calorimeter
Performing precision equalization on the low-response detection units of electromagnetic calorimeter (ECAL), it is essential for precision energy measurements of Alpha Magnetic Spectrometer (AMS-02).
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Article
Cosmic-ray helium nuclei measurement with the calorimeter of the Alpha Magnetic Spectrometer
The distributions of energy responses of helium measured by the electromagnetic calorimeter (ECAL) of Alpha Magnetic Spectrometer (AMS-02) in Monte-Carlo do not agree with those in real data, thus using energy...
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Article
On-orbit equalization of the electromagnetic calorimeter of the Alpha Magnetic Spectrometer
The Alpha Magnetic Spectrometer (AMS-02) will continuously collect data for the lifetime of the International Space Station (ISS). On-orbit equalization must be performed to ensure the accuracy of the AMS ener...
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Article
Improvement of cosmic-ray proton measurement with the electromagnetic calorimeter of the Alpha Magnetic Spectrometer
The energy response of protons measured by electromagnetic calorimeter (ECAL) of Alpha Magnetic Spectrometer (AMS-02) shows disagreement between Monte Carlo (MC) simulation and data. Therefore, using the respo...
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Chapter and Conference Paper
The Long-Term Performance and Life Test of the Spaceborne Rubidium Atomic Clock Under Vacuum on the Ground
The spaceborne atomic clock is one of the core payloads of the Beidou III Global Navigation Satellite, which provides a highly stable time frequency reference for navigation satellites. At present, the Beidou ...
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Chapter and Conference Paper
The Design of Thermal Resistance Testing System for Thermal Interface Material
Thermal conductive gasket is a kind of widely used thermal interface material, the measurement of its thermal resistance has been neglected in actual use. In this paper, according to Fourier’s one-dimensional ...
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Chapter and Conference Paper
The Design of Variant Gradient Fractal Dot Matrix Structure Strengthening PCM Heat Sink
A phase change material (PCM) based heat sink strengthened by fractal matrix sandwich with variable gradient for short or intermittent thermal control of electronic equipment was introduced in the present pape...
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Article
Improvement in the 3D shower shapes description in the Monte Carlo simulation for a lead-scintillating fiber electromagnetic calorimeter
The lead-scintillating fiber electromagnetic calorimeter (ECAL) of the Alpha Magnetic Spectrometer measures the energy of positrons/electrons and separates them from hadrons. The electromagnetic shower shapes ...
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Article
Open AccessInhibition of litter decomposition of two emergent macrophytes by addition of aromatic plant powder
Aromatic plants show antimicrobial activity due to their essential oils, but their effect on litter decomposition is unclear. In this study, we evaluated the biomass loss and nutrient dynamics in leaf litters ...
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Article
Open AccessCaregiver burden and its determinants among family members of patients with chronic viral hepatitis in Shanghai, China: a community-based survey
In China, caregivers of chronic viral hepatitis patients experience considerable burdens, stress and disruption of their own well-being and social activities. Measurement of the effect on caregivers is an unde...
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Article
Open AccessThe development of a combined mathematical model to forecast the incidence of hepatitis E in Shanghai, China
Sporadic hepatitis E has become an important public health concern in China. Accurate forecasting of the incidence of hepatitis E is needed to better plan future medical needs. Few mathematical models can be u...