A5053580028- Maritime Transport Emissions and Efficiency
- Vehicle emissions and performance
- Geophysics and Gravity Measurements
- Atmospheric chemistry and aerosols
- Inertial Sensor and Navigation
- GNSS positioning and interference
- Air Quality and Health Impacts
- Seismic Waves and Analysis
- Ocean Acidification Effects and Responses
- Scientific Measurement and Uncertainty Evaluation
- Geophysics and Sensor Technology
- Air Quality Monitoring and Forecasting
- Maritime Ports and Logistics
- Radio Astronomy Observations and Technology
- Environmental Policies and Emissions
- Cellular and Composite Structures
- Embedded Systems and FPGA Design
- Statistical and numerical algorithms
- Maritime Navigation and Safety
- Surface Modification and Superhydrophobicity
- Reservoir Engineering and Simulation Methods
- Climate Change and Health Impacts
- Electrospun Nanofibers in Biomedical Applications
- Advanced biosensing and bioanalysis techniques
- RNA and protein synthesis mechanisms
Tsinghua University
2019-2024
State Key Joint Laboratory of Environment Simulation and Pollution Control
2024
Southwest Jiaotong University
2024
China Academy of Launch Vehicle Technology
2023
Zhejiang University
2022
Hunan University
2017
Huazhong University of Science and Technology
2014-2015
Yangtze University
2014
Beihang University
2012
Abstract. The high-resolution ship emission inventory serves as a crucial dataset for various disciplines including atmospheric science, marine and environmental management. Here, we present global high-spatiotemporal-resolution at resolution of 0.1° × the years 2013 2016–2021, generated by state-of-the-art Shipping Emission Inventory Model (SEIMv2.2). Initially, annual 30 billion Automatic Identification System (AIS) data underwent extensive cleaning to ensure validity accuracy in temporal...
Abstract. Ship emissions and coastal air pollution around China are expected to be alleviated with the gradual implementation of ship domestic emission control area (DECA) policies. However, a comprehensive post-assessment on policy's effectiveness is still lacking. This study developed series high-spatiotemporal inventories from 2016 2019 based an updated Emission Inventory Model (SEIM v2.0) analyzed interannual changes in under influence both activity increases gradually promoted In this...
Shipping is the cornerstone of international trade and thus a critical economic sector. However, ships predominantly use fossil fuels for propulsion electricity generation, which emit greenhouse gases such as carbon dioxide methane, air pollutants particulate matter, sulfur oxides, nitrogen volatile organic compounds. The availability Automatic Information System (AIS) data has helped to improve emission inventories from ship stacks. Recent laboratory, shipborne, satellite modeling studies...
Currently, over 80% of the international trade volume is carried by sea. Marked persistent growth, evident atmospheric impacts, intricate mitigation challenges, shipping has been recognized as one most "hard-to-abate" sectors gathering increasing attention from both academic community and governmental in recent years. Against backdrop ambitious climate clean air objectives, quantitative emission characterization, impact assessment policy effectiveness research are not only fundamental to...
Classical absolute gravimeters are widely used in many areas, including metrology, seismology, geophysics, and exploration. These apply a free-fall method to measure gravitational acceleration using laser interferometer. In practice, the measurement precision is affected by ground vibrations. Vibration correction an important way deal with these vibrations for gravity measurement. Most vibration methods use commercial seismometer motion of reference retroreflector indirectly. A vertical...
Absolute gravity measurement refers to the of absolute value gravitational acceleration (<i>g</i>, approximately 9.8 m/s<sup>2</sup>). The precision is limited mainly by vibration noises. Vibration correction a simple and feasible way deal with noises, which corrects results detecting noises sensor. At present, performance different sensors lacks systematic analysis evaluation. In this paper, theoretical how sensor characteristics affect carried out. performances...
Accurate observations of the gravitational acceleration (g , about 9.8 m/s <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> ) provide important geophysical data for use in geophysics, metrology, and geodesy. At present, most widely used absolute gravimeter determines value g by tracking a falling retroreflector vacuum using laser interferometer. The precision accuracy measurement are mainly affected ground vibration noise. When compared...
Accurate absolute gravimeters are important instruments in applications, such as metrology, geophysics, and geological exploration. Vibration is one of the limiting factors that cause deterioration measurement accuracy, which includes trueness precision. The vibration correction method, a seismometer used to record vibration, provides an effective method deal with disturbances. theoretical analysis shows ultimate accuracy limited by inherent frequency performance seismometer. algorithm...
Abstract. The high-resolution ship emission inventory serves as a crucial dataset for various disciplines including atmospheric science, marine environmental management, etc. Here, we present global high spatiotemporal resolution at of 0.1° × the years 2013, 2016–2021, generated by state-of-the-art Shipping Emission Inventory Model (SEIMv2.2). Initially, annual 30 billion Automatic Identification System (AIS) data underwent extensive cleaning to ensure validity and accuracy in temporal...
Abstract. Ship emissions and coastal air pollutions around China are expected to be alleviated with the gradually implemented of domestic ship emission control (DECA) policy. However, there is so far a lack comprehensive post assessment on response after policy implementation. This study developed series high spatiotemporal inventories China’s inland rivers 200 Nm zone from 2016 2019 based an updated Emission Inventory Model (SEIM v2.0) analysed interannual changes under influence both...
Dynamic onboard gravimetry is essential in geophysics, geodesy and exploration. Optical interferometry one of the promising technologies to achieve dynamic absolute gravimetry. A vibration correction system aimed at optical proposed this paper. Its performance preliminarily verified static condition on ground a passive gimbal suspension respectively. As for case ground, standard deviation reduced from 7.5 mGal 0.9 systematic 1.3 0.3 after correction. gimbal, amplitude noise up 0.1...
Free-fall absolute gravimeters are widely employed to measure the gravitational acceleration, commonly known as g. It applies an interferometer trajectory of a free-falling object. The measurement precision is limited by ground vibration. A vibration correction method often applied in noisy environment including moving platform, sometimes it required get g value quickly. takes much time about 6 min calculate for one set (no less than 25 drops). In order quickly and accurately obtain hostile...
The foam core sandwich composite ship is a new kind using special materials. advantages include easy molding, short construction period and so on. However, due to the specialty of material property as well complexity structures, there are element applicability calculation efficiency problems when conducting FEA (Finite Element Analysis) calculations whole ship. Based on experiment simulation result, shell found which equivalent solid beam plate. An efficient practical way developed this...
Measuring absolute gravity acceleration from a ship or aircraft is essential in gravimetry. Unlike conventional ground measurement, marine gravimeters are disturbed six degrees-of-freedom. Among the degrees-of-freedom, translation along Z-axis and rotations around X-axis Y-axis have main influences on measured acceleration. Thus six-degrees-of-freedom vibration isolator with output constraints developed this paper. The structure of based Stewart platform, state-space dynamic model...
Abstract The ballistic free-fall absolute gravimeters are widely used in acquiring information of gravity field and the self-vibration gravimeter is crucial for high precision gravitational measurement. T-1 has a multi-directional full-band excitation. resulted horizontal swing major impact, since simplified as cantilever beam. A laser vibrometer was applied to directly measure mechanical self-vibration. frequency nonlinear effect on measurement error g, peak frequencies should be avoided....