Li Jin

ORCID: 0000-0002-1737-7344
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Research Areas
  • Aluminum Alloys Composites Properties
  • Magnesium Alloys: Properties and Applications
  • Glass properties and applications
  • Metallurgy and Material Forming
  • Aluminum Alloy Microstructure Properties
  • Additive Manufacturing Materials and Processes
  • Hydrogen Storage and Materials
  • Metal and Thin Film Mechanics
  • Welding Techniques and Residual Stresses
  • Photonic Crystal and Fiber Optics
  • Advanced Welding Techniques Analysis
  • Microstructure and Mechanical Properties of Steels
  • Solid State Laser Technologies
  • Microstructure and mechanical properties
  • Metallic Glasses and Amorphous Alloys
  • Titanium Alloys Microstructure and Properties
  • High Entropy Alloys Studies
  • Metal Alloys Wear and Properties
  • Optical Network Technologies
  • Sleep and Work-Related Fatigue
  • Hybrid Renewable Energy Systems
  • Catalysis and Hydrodesulfurization Studies
  • Quantum optics and atomic interactions
  • Neuroendocrine Tumor Research Advances
  • Lung Cancer Research Studies

China General Nuclear Power Corporation (China)
2023

Zhejiang Provincial People's Hospital
2021

Hangzhou Medical College
2021

Zhoukou Normal University
2018-2021

Chongqing University
2010-2020

East China Normal University
2019

South China University of Technology
2018

Shanghai Jiao Tong University
2000-2017

Xidian University
2010

The Mg-Gd-Y-Zn-Zr alloys are representational and potential age-hardening systems as reported in the past ten years, but their mechanical properties still dependent on grain size its distribution. effect of bimodal structure Mg-8Gd-3Y-0.5Zr alloy with distributions was investigated. results suggested that volume fraction fine (FG) coarse (CG) could be controlled by combined processes hot forging, extrusion annealing. And for present distribution, improvement strength is attributed to...

10.1016/j.jma.2017.09.004 article EN cc-by-nc-nd Journal of Magnesium and Alloys 2017-11-19

10.1016/s1003-6326(19)65186-1 article EN Transactions of Nonferrous Metals Society of China 2020-01-01

Fatigue driving is one of the most important causes traffic accidents. Real-time fatigue detection and early warning very to reduce number accidents, injuries, deaths. Although traditional ECG (Electrocardiography) based methods can effectively identify state, they need a relatively long time period (in general 5 min) signal not be used monitor state in real-time. In this paper, short-time signals oriented method proposed improve real-time character. A pre-processing scheme present enhance...

10.1109/itsc.2018.8569409 article EN 2018-11-01

To develop the Chinese version of Clinical Outcomes in Routine Evaluation-Outcome Measure (CORE-OM) and examine its psychometric properties, we investigated a sample 689 non-clinical 309 clinical participants found this measurement had good acceptability, internal reliability, test-retest reliability convergent validity; it moderate correlations with Schwartz Outcome Scale Symptom Check List-90, which showed an acceptable concurrent validity. Specifically, explored cut-off line criterion g...

10.1080/03069885.2019.1682120 article EN British Journal of Guidance and Counselling 2019-10-21

Three thermal frequencies that were designated as 3, 4, and 5 Hz used to reveal the microstructural evolution, mechanical, corrosion properties of AA6061-T6 sheets welded by double pulsed gas metal arc welding (DP-GMAW) using observations, microhardness tests, tensile bend impact tests. A self-developed system consisted a digital multifunctional welder an dynamic waveform wavelet analyzer was chosen perform operations record electrical signal waveforms during process. The results show...

10.3390/app8040540 article EN cc-by Applied Sciences 2018-04-02

Effect of Zn on the microstructure, age hardening response and mechanical properties Mg–3Sn–1Al alloy which is immediately aged at 180°C after extrusion process (T5) was investigated. It found that can refine remarkably improve aging with peak hardness increases to 75 HV time reduces from ∼110 ∼60 h, attributed solid solution Al, an amount finer Mg 2 Sn precipitates. The as Mg–3Sn–2Zn–1Al exhibits better property room temperature or 150°C than alloy, ascribed fine grained microstructure...

10.1179/1743284714y.0000000607 article EN Materials Science and Technology 2014-07-22

10.1016/j.jallcom.2015.10.034 article EN Journal of Alloys and Compounds 2015-10-24

The rate and power propagation equations of Er <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3+</sup> Tm -codoped tellurite fiber amplifier pumped by 800-nm laser are presented solved to analyze the dependences gain at both 1470 1530 nm on codoping concentration , length, input signal power. numerical results show that with pump 200 mW length 1.5 m, may reach 12.0 dB when 4.0times10 xmlns:xlink="http://www.w3.org/1999/xlink">25</sup> ions/m...

10.1109/lpt.2005.860398 article EN IEEE Photonics Technology Letters 2006-01-18

We present a numerical model of an Er3+-Tm3+-Pr3+ codoped fiber amplifier pumped with 800 nm laser for the first time to best our knowledge. The rate and power propagation equations are solved numerically, dependence gains at 1310, 1470, 1530 windows on active ion concentrations length calculated. results show that pump 20 mW, when Pr(3+)-Tm(3+)-Er(3+) around 2.0 x 10(24), 2.26 10(24) (ions/m3), respectively, signals may be equally amplified in 1.3 m.

10.1364/ao.48.002220 article EN Applied Optics 2009-04-09

Mg-5Sn alloys containing different Zn contents (Zn=1, 2, 3; wt.%) were extruded at 380°C with a extrusion ratio of 29, rolled 400°C total rolling reduction 50% subsequently. The microstructure, texture and mechanical properties as-extruded as-rolled sheets investigated. results indicated that played vital role on microstructure under conditions, the strength elongation improved addition due to recrystallization during hot processing. sheet high content exhibited degree dynamic stable strain...

10.4028/www.scientific.net/kem.727.196 article EN Key engineering materials 2017-01-01

Surfacing gradient layers using different materials on the surface of die is an efficient way to improve its service life, especially under extreme high temperature and pressure. To obtain superior high-temperature stability, a cobalt-based superalloy welding material, JLCo32 nickel-based CHN327 were both designed in this study as which welded manufactured by bimetal-layer surfacing technology. Arc two kinds was conducted ferrous alloys matrix, ten cycles heating 700 °C with speed 2 s−1...

10.1088/2053-1591/ab30b2 article EN Materials Research Express 2019-07-10

10.3964/j.issn.1000-0593(2020)02-0333-10 article EN Guangpuxue yu guangpu fenxi 2020-01-01

Based on the exact resultant solution of two-dimensional Poisson's equation in strained Si and Si1–xGeX layer, a simple accurate analytical model including surface channel potential, electric field, threshold voltage subthreshold swing for fully depleted gate stack silicon-germanium-on-insulator (SGOI) MOSFETs has been developed. The results show that this novel structure can suppress short effects (SCE), drain-induced barrier-lowering (DIBL) improve performance nanoelectronics application....

10.1088/1674-1056/19/10/107301 article EN Chinese Physics B 2010-10-01
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