159 results on '"Li, Tianchu"'
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2. Development and Evaluation of a Narrow Linewidth Laser System for 171Yb+ E2 Transition
3. Is there a finite mobility for the one vibrational mode Holstein model? Implications from real time simulations.
4. A Low Temperature-Sensitive Ramsey Cavity for Rb Fountain Clocks
5. Development of Rb fountain clock for time keeping
6. Research on supraharmonic emission characteristics and influence factors of two-stage single-phase frequency converter
7. Voltage sag source location based on multi-layer perceptron and transfer learning
8. Application of the imaginary time hierarchical equations of motion method to calculate real time correlation functions.
9. A low-temperature quantum Fokker–Planck equation that improves the numerical stability of the hierarchical equations of motion for the Brownian oscillator spectral density.
10. Calculation and test analysis for power frequency electromagnetic field of transmission line crossing agricultural greenhouse area
11. Influence of phase sequence arrangement on the electromagnetic environment of four-circuit AC line on the same tower
12. Efficient propagation of the hierarchical equations of motion using the Tucker and hierarchical Tucker tensors.
13. Mixed quantum classical reaction rates based on the phase space formulation of the hierarchical equations of motion
14. Fiber Based Time and Frequency Synchronization System
15. Progress on a Compact Ultra-stable Laser System for Photonic Microwave Generation
16. A compact, transportable optical clock with 1×10−17 uncertainty and its absolute frequency measurement
17. Bimetal Temperature-Compensated Ramsey Cavity for Atomic Fountain Frequency Standards
18. Experimental study on voltage sag tolerance of adjustable speed drive with AC contactor
19. An Ultra-Low-Frequency Active Vertical Vibration Isolator With Horizontal Constraints for Absolute Gravimetry
20. Microwave-Vacuum Integrated Cavity with a Low Temperature Sensitivity for Cs Fountain Clocks
21. Bimetal Temperature-Compensated Ramsey Cavity for Atomic Fountain Frequency Standards
22. Time: Astronomical time - atomic time - redefining second based on constant
23. Design and operation of a transportable 87Rb atomic fountain clock
24. Preliminary progress of the state preparation with a new optical pumping method in a cesium atomic fountain clock
25. Design of the optical system for 171-ytterbium single-ion optical clock
26. Economic Losses Aversion Mechanism of Voltage Sag in Pharmaceutical Industry
27. Technical Development of Absolute Gravimeter: Laser Interferometry and Atom Interferometry
28. Ultranarrow bandwidth Faraday atomic filter approaching natural linewidth based on cold atoms
29. Seamless Switching Control Technology for the Grid-Connected Converter in Micro-Grids
30. Geopotential measurement with a robust, transportable Ca+ optical clock
31. Absolute frequency measurement of an Yb optical clock at the 10−16 level using International Atomic Time
32. A Voltage Sag Immunity Testing Method for Industrial Process Based on Electrical-Physical Properties
33. Fountain clocks comparisons in Beijing area
34. Optical microwave generation with an ultra-stable Fabry–Perot cavity in a laser diode self-injection loop
35. Advances in strontium optical lattice clocks at NIM
36. Technical Development of Absolute Gravimeter: Laser Interferometry and Atom Interferometry
37. Optical scanning extrinsic Fabry-Perot interferometer for absolute microdisplacement measurement
38. Design and operation of a transportable 87Rb atomic fountain clock.
39. Advances in the NIM Cs fountain clocks
40. The preliminary evaluation of the new fountain clock NIM6
41. The tentative application of optical generation of microwave on the fountain clock in NIM
42. The ultra-stable microwave based on ultra-stable laser
43. The ultra-stable microwave based on ultra-stable laser with robustness and long term stability
44. Absolute frequency measurement of an Yb optical clock at the 10−16 level using International Atomic Time.
45. Preliminary progress of the state preparation with a new optical pumping method in a cesium atomic fountain clock
46. The ultra-stable microwave based on ultra-stable laser
47. First Harmonic Saturated Absorption Frequency Stabilization of Lasers Using Sampling Integration Technique
48. The progress of the NIM6 fountain clock in NIM
49. The microwave down converted from ultra-stable laser by an optical frequency comb
50. Fountain clocks comparisons in Beijing area
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