A5101574996- Advanced Antenna and Metasurface Technologies
- Metamaterials and Metasurfaces Applications
- Civil and Geotechnical Engineering Research
- Antenna Design and Analysis
- Traffic Prediction and Management Techniques
- Thermal Radiation and Cooling Technologies
- Geoscience and Mining Technology
- Safety and Risk Management
- Microwave Engineering and Waveguides
- Transportation Planning and Optimization
- Grouting, Rheology, and Soil Mechanics
- Advanced MEMS and NEMS Technologies
- Mining and Gasification Technologies
- Sensor Technology and Measurement Systems
- Geotechnical and Geomechanical Engineering
- Blasting Impact and Analysis
- Climate change and permafrost
- Tunneling and Rock Mechanics
- Evacuation and Crowd Dynamics
- Acoustic Wave Resonator Technologies
- Occupational Health and Safety Research
- Traffic control and management
- Engineering and Environmental Studies
- Millimeter-Wave Propagation and Modeling
- Geotechnical Engineering and Underground Structures
Northeast Normal University
2023-2024
University of Chinese Academy of Sciences
2024
China University of Mining and Technology
2008-2022
Construction Development (Qatar)
2015
Nantong University
2012
Beijing University of Technology
2010
Czech Academy of Sciences, Institute of Geology
2009
The broadband metamaterial perfect absorbers over various incident angles are highly significant in long-wave infrared (LWIR) detection. Previous research on LWIR has mainly focused metallic resonators. Here, we propose two that use dielectric resonators instead. germanium (Ge) the top layer excite resonance modes control equivalent impedance of structure, which acts high-lossy Si3N4-Ti reflecting to assume absorption. Firstly, designed a three-layer structure Ge-Si3N4-Ti, achieved...
In this article, a compact bandpass filter with pair of transmission zeros exploiting capacitive loaded cavities is presented. The proposed structure mainly composed coplanar waveguide (CPW) feeding structures and four substrate integrated (SIW) resonators. size the has been greatly reduced due to circle metallic septum vertical coupling stacked in three dimensional by low temperature co-fired ceramic technology. not only achieves advantages high-selectivity, much wider upper stopband...
As traffic-related work zone crashes continue to increase across the nation, safety of road users and workers has become a top priority for transportation agencies. This study compared three different temporary control countermeasures traffic channelizing devices by using simplified conflict model evaluate their effectiveness. used "stoplight up" "headlight combined with volume passenger car percentage. The found that use flashing vehicle flagger is most effective. level speed limit double...
In this paper, the author simulates geological conditions of permafrost areas, establi-shes CFG group piles indoor model, observes pile and frozen soil temperature field, then compares calculated results temperatures under concrete hydration heat effect by using ABAQUS with measured data, thus determines applicability for analysis in order to analyze distribution regularities effect, thermal perturbation range effects different molding on model field.
Through the combustion experiments on cables and servers in a data room, characteristic parameters of materials were obtained, analyzed evaluated from aspects heat release rate, gas concentration, flue temperature, so on. The results show that network cable electric can be ignited during test. In overall fire experiment single server group with three cabinets, process is divided into stages: initial growth stage, stable attenuation stage. CO 2 concentration have peaks, respectively, 58, 98,...
Using the National Highway transportation hub system planning of Beijing as background, and based on functions highway hubs, this article analyzes different operational requirements to systems primary for users. Basic principles transport planning, theory control will be used putting forward a program. This program have multi-level hierarchical oriented work, feedback auxiliary work high quality service core. establishes an overall model passenger systems, structure with organization...
In the view of actual project, this paper analyses credit problems foundation treatment, from three aspects location, shallow blow fill and pile’s negative firctio- n. Then especially studies field testing scheme about dynamic compaction method with precipitation, based on analysis percussive precipitation packless vibroflotation method. Meanwhile, operated steps attention construction have been enucleated.
Abstract In this study, a compact filtering 2 × array antenna with high selectivity utilizing substrate integrated waveguide (SIW) is presented. The proposed structure mainly composed of coplanar feeding structures, SIW cavities, and four radiation patches by low‐temperature co‐fired ceramic technology. designed not only achieves the advantages but also realizes miniaturized volume 12 1.18 mm 3 . simulated measured results show that center frequency 28 GHz has 10.7% fractional bandwidth 10.8 dB gain.