Tao Sun

University of Chinese Academy of Sciences

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Trends

Author Order

Document Type

Co-Authors

Renata M. Wentzcovitch

Lamont-Doherty Earth Observatory

Dong‐Bo Zhang

Beijing Normal University

Zhangyuan Chen

Peking University

Xiaopeng Xie

Peking University

Peng Guo

Capital Medical University

Weiwei Hu

Shanghai University

Stefano Fabris

Scuola Internazionale Superiore di Studi Avanzati

Huanfa Peng

Karlsruhe Institute of Technology

Lixin Zhu

Shandong University

Jackie Y. Ying

Institute of Materials Research and Engineering

Cooperative Institutions

Chinese Academy of Sciences

100

Peking University

University of Chinese Academy of Sciences

Tsinghua University

Shanghai Jiao Tong University

Shandong University

Sichuan University

Huazhong University of Science and Technology

Zhejiang University

University of Science and Technology of China

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Field

Thermal Properties of Liquid Iron at Conditions of Planetary Cores

Journal of Geophysical Research Planets (2022)

Qing Li Jiawei Xian Yigang Zhang Tao Sun L. Vočadlo

Abstract Thermal properties of iron at high pressures ( P ) and temperatures ( T ) are essential for determining the internal structure and evolution of planetary cores. Compared to its solid counterpart, the liquid phase of iron is less studied and existing results exhibit large discrepancies, hindering a proper understanding of planetary cores. Here we use the formally exact thermodynamic integration approach to calculate thermal properties of liquid iron up to 3.0 TPa and 25000 K. Uncertainties associated with theory are compensated by introducing a T ‐independent pressure shift based on experimental data. The resulting thermal equation of state agrees well with the diamond anvil cell (DAC) data in the P ‐ T range of measurements. At higher P ‐ T it matches the reduced shock wave data yet deviates considerably from the extrapolations of DAC measurements, indicating the latter may require further examinations. Moreover, the calculated heat capacity and thermal expansivity are substantially lower than some recent reports, which have important ramifications for understanding thermal evolutions of planetary cores. Using Kepler‐36b as a prototype, we examine how a completely molten core may affect the P ‐ T profiles of massive exoplanets. By comparing the melting slope and the adiabatic slope along the iron melting line, we propose that crystallization of the cores of massive planets proceeds from the bottom‐up rather than the top‐down.

Diamond anvil cell

10.1029/2021je007015

Cite

Citations (10)

Thermal conductivity from phonon quasiparticles with subminimal mean free path in the MgSiO3 perovskite

Physical review. B./Physical review. B (2017)

Dong‐Bo Zhang Philip B. Allen Tao Sun Renata M. Wentzcovitch

Understanding the lattice thermal conductivity at high temperatures is important for many applications. We characterize phonon quasiparticles numerically through a hybrid approach that combines first-principles molecular dynamics and lattice dynamics. We find no lower-bound limits on phonon mean free paths in the ${\mathrm{MgSiO}}_{3}$ perovskite. This contradicts the widely used minimal mean free path idea. The clear identification of phonon quasiparticles validates the use of a phonon gas model when the phonon mean free paths are shorter than the lattice constants of solids. Using the phonon quasiparticle properties, we have calculated the lattice thermal conductivity of the ${\mathrm{MgSiO}}_{3}$ perovskite. The results are reasonable compared to recent experimental measurements.

Lattice (music)

10.1103/physrevb.96.100302

Cite

Citations (18)

The Improvement of a kind Solid State Nuclear Track Detector

Hedianzixue yu tance jishu (2010)

Tao Sun

The article improves the traditional solid state nuclear track detector(SSNTD) by adding the electrostatic collection system.Thus the detector's measurement time will be reduced.At the same time,it finds that the new detector can provide exactly concentration of radon in a short time when compares with the detector without the electrostatic collection system.So the new detector has a practical applied importance.

Nuclear track

Source

Cite

Citations (1)

Combination of a Push-Pull-Block Strategy with a Heterogonous Xylose Assimilation Pathway Toward Lipid Overproduction from Lignocellulose in Yarrowia Lipolytica

SSRN Electronic Journal (2022)

Tao Sun Yizi Yu Lu Lin Rodrigo Ledesma‐Amaro Xiao‐Jun Ji

The production of biodiesel using microbial lipids derived from renewable lignocellulosic biomass is considered a promising strategy to reduce environmental pressure and promote the green energy transition. The hydrolysates of lignocellulosic biomass are rich in glucose and xylose, which makes it crucial to efficiently utilize both sugars. Here, we combined metabolic engineering and adaptive laboratory evolution (ALE) to construct an engineered Yarrowia lipolytica strain that can efficiently produce lipids from glucose and xylose. First, the "Push-Pull-Block" strategy was adopted to increase lipid content to 73.42% of dry cell weight (DCW). Then, a heterogonous xylose-utilization pathway was integrated into the engineered strain, which was subjected to ALE. The final evolved strain could accumulate 53.64% DCW of lipids from xylose, and the lipid titer reached 16.25 g/L. This work sheds light on the potential of microbial lipid overproduction from lignocellulose using engineered Y. lipolytica .

10.2139/ssrn.4223124

Cite

Citations (0)

Low-noise and broadband optical frequency comb generation based on an optoelectronic oscillator

Optics Letters (2014)

Xiaopeng Xie Tao Sun Huanfa Peng Cheng Zhang Peng Guo

A novel scheme to generate broadband high-repetition-rate optical frequency combs and low phase noise microwave signals simultaneously is proposed and experimentally demonstrated. By incorporating an optical frequency comb generator in an optoelectronic oscillator loop, more than 200 lines are generated for a 25 GHz optical frequency comb, and the single-sideband phase noise is as low as −122 dBc/Hz at 10 kHz offset for the 25 GHz microwave signal. 10 and 20 GHz optical frequency combs and microwave signals are also generated. Unlike the microwave frequency synthesizer, the phase noise of the microwave signals generated by this new scheme is frequency independent.

Comb generator

dBc

10.1364/ol.39.000785

Cite

Citations (45)

Phonon Quasi-Particles and Anharmonic Free Energy in Complex Systems

Bulletin of the American Physical Society (2014)

Dong‐Bo Zhang Tao Sun Renata M. Wentzcovitch

Source

Cite

Citations (0)

Additional file 2 of De novo transcriptome analysis provides insights into the salt tolerance of Podocarpus macrophyllus under salinity stress

Figshare (2021)

Lijuan Zou Taotao Li Bingbing Li Jing He Chunli Liao

Additional file 2: Supplementary Dataset 1. Gene co-expression clusters of the upregulated DEGs in P. macrophyllus under LS salt stress.

10.6084/m9.figshare.16869718

Cite

Citations (0)

Additional file 4 of De novo transcriptome analysis provides insights into the salt tolerance of Podocarpus macrophyllus under salinity stress

Figshare (2021)

Lijuan Zou Taotao Li Bingbing Li Jing He Chunli Liao

Additional file 4: Supplementary Dataset 3. Transcription factors which were predicted in the assembly transcriptome of P. macrophyllus.

10.6084/m9.figshare.16869722

Cite

Citations (0)

Nonlinear auto-adjusting iterative reconstruction technique for interferometric tomography

Optical Engineering (2013)

Yizhong Song Tao Sun Peishu Qu

A new algebraic reconstruction technique (ART), nonlinear auto-adjusting iterative reconstruction technique (NAIRT), is proposed and applied to reconstruct a section of an actual thermal air flow field. With numerical simulation, NAIRT was tested to reconstruct a complicated field to demonstrate its superior reconstructive capability. In contrast, three typical ARTs, the basic ART, simultaneous ART (SART), and a modified SART (MSART), were simulated to demonstrate the reconstructive capability improvement attained through the use of the proposed NAIRT. The calculated results were discussed with mean square error (MSE) and peak error (PE). A thermal air flow field was produced with an alcohol burner and was detected by a laser beam. With laser beam projections, a cross-section of the field was reconstructed by NAIRT. As a result, the reconstructive capability was improved much by NAIRT. The MSE decreased by 95.5%, and PE by 97.2% from that of the basic ART. Only NAIRT converged without filters while its reconstructive accuracy improved. By increasing the projections from 42 to 84, the accuracy of NAIRT without filters was improved significantly. NAIRT could effectively reconstruct the section of the thermal field. The proposed NAIRT needed no filter for its convergence and it had the highest reconstructive accuracy and simplest iterative expression of those analyzed.

Algebraic Reconstruction Technique

Interpolation

10.1117/1.oe.52.7.074107

Cite

Citations (0)

A novel microfluidic enzyme-organocatalysis combination strategy for ring-opening copolymerizations of lactone, lactide and cyclic carbonate

Chemical Engineering Journal (2018)

Weijun Huang Ning Zhu Yihuan Liu Jian Wang Jun Zhong

Microreactor

Lactide

Trimethylene carbonate

Biodegradable polymer

10.1016/j.cej.2018.09.033

Cite

Citations (31)