Liu Jia

ORCID: 0000-0003-0704-7824
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About
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Research Areas
  • Welding Techniques and Residual Stresses
  • Advanced Surface Polishing Techniques
  • Railway Engineering and Dynamics
  • Simulation and Modeling Applications
  • Advanced machining processes and optimization
  • Industrial Technology and Control Systems
  • Advanced Measurement and Metrology Techniques
  • Advanced Numerical Analysis Techniques
  • Engineering Applied Research
  • Regional Development and Environment
  • Mechanical stress and fatigue analysis
  • Power Systems and Technologies
  • Gear and Bearing Dynamics Analysis
  • Additive Manufacturing Materials and Processes
  • Advanced Computational Techniques and Applications
  • Knowledge Management and Technology
  • Environmental Changes in China
  • Lung Cancer Treatments and Mutations
  • Acoustic Wave Phenomena Research
  • Multimedia Communication and Technology
  • Laser and Thermal Forming Techniques
  • Diamond and Carbon-based Materials Research
  • Reproductive Health and Contraception
  • Higher Education and Teaching Methods
  • Access Control and Trust

Ningbo University of Technology
2025

Hengshui University
2003-2023

Chongqing University of Science and Technology
2023

Changchun University of Science and Technology
2018-2020

Southwest Jiaotong University
2018-2019

China General Nuclear Power Corporation (China)
2018

China International Science and Technology Cooperation
2018

Institute of High Energy Physics
2011-2018

Chinese Academy of Sciences
2018

Chengdu University of Technology
2016

Balling effect is an inevitable defect during Selective laser melting (SLM) process, and it deteriorates the mechanical corrosion properties of resulting parts. In this work, SLM process used with various inclination angles to fabricate samples. The deep relationship between selective as-SLM fabricated parts established understand angle on surface roughness, microstructure evolution, 316L stainless steel components. Results show that Ra value increased increasing angles. Inclination play...

10.1088/2053-1591/aaf2d3 article EN Materials Research Express 2018-11-22

10.1016/j.nima.2018.03.029 article EN Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment 2018-03-15

According to a large amount of the test data, mid and high frequency vibrations high‐speed bogies are very notable, especially in 565~616 Hz range, which just passing frequencies corresponding 22nd 24th polygonal wear wheel. In order investigate main cause wheel higher‐order polygon formation, 3D flexible model Chinese train bogie is developed using explicit finite element method. The results show that couple vibration wheelset may lead high‐order wears reduce coupled resonance frame,...

10.1155/2018/6759105 article EN cc-by Shock and Vibration 2018-01-01

In order to study the impedance characteristics of frictional draft gear, MT‐2 gear is studied, and its mechanical properties are analyzed firstly. Then, mathematical models two common gears established based on data collected from vehicle impact test, effects modeling methods simulation results compared through shunting test bench simulation. Researches show that, under various experimental conditions, simulated characteristic curve lookup table model moves along a fixed trajectory...

10.1155/2019/2547318 article EN cc-by Shock and Vibration 2019-01-01

Artificial neural networks are introduced in the area of grinding. There some disadvantages BP (Back Propagation) algorithm, such as low rate convergence speed, easily falling into local minimum point and weak global search capability. In order to solve these problems, this paper presents a new learning algorithm that uses GA (Genetic Algorithm) train networks. The prediction model surface roughness cylindrical traverse grinding based on evolutionary is proposed detail. experimental...

10.1109/mace.2011.5987221 article EN 2011-07-01

In this paper, we use the knowledge of semiconductor refrigeration, developed a small temperature-constant box, which can meet need biological agents and storage conditions, suitable for medical reaction experiment equipment line, to guarantee activity in daily preserving experimental. It be embedded into test has advantages such as size, high precision temperature control, easy adjust, two-way control temperature, no refrigerant, pollution-free. This paper introduces design basic box...

10.4028/www.scientific.net/amm.325-326.703 article EN Applied Mechanics and Materials 2013-06-13

Existing works in federated learning (FL) often assume an ideal system with either full client or uniformly distributed participation. However, practice, it has been observed that some clients may never participate FL training (aka incomplete participation) due to a myriad of heterogeneity factors. A popular approach mitigate impacts participation is the server-assisted (SA-FL) framework, where server equipped auxiliary dataset. despite SA-FL empirically shown be effective addressing...

10.48550/arxiv.2405.02745 preprint EN arXiv (Cornell University) 2024-05-04

Background: In the treatment of colorectal cancer, laparoscopic surgery has seen a significant amount success. Reducing risk postoperative complications and improving patients’ quality life can be accomplished by appropriately employing pelvic peritoneal repair sigmoid colostomy when appropriate. Objective: To compare fusion closure peritoneum combined with extraperitoneal non-closure intraperitoneal in patients low rectal cancer who had permanent colostomy. Methods: Low admitted to Hengshui...

10.26689/par.v7i3.4869 article EN Proceedings of Anticancer Research 2023-05-29

The three-dimensional finite element method has become the main for studying biomechanics of temporomandibular joint due to its precise and non-invasive characteristics. However, geometric similarity mechanical simulation different modeling methods differ, there are significant differences in their authenticity. principle is use modern computer technology numerically convert properties objects, establish an intuitive, time-saving, conclusive research model, analyze stress-strain situation...

10.25236/ijfm.2023.051217 article EN International Journal of Frontiers in Medicine 2023-01-01

With the development of digital reference service, more and single service institutions have been involved into consortia to participate in collaborative online service. Nevertheless, some extent it is still questioned whether always superior This paper reports a student research project that gives reply this doubt. During project, chat services provided by four categories libraries United States were evaluated. At first, author describes origin, scope, methodology limitations project. Then...

10.1515/bfup.2006.353 article EN BIBLIOTHEK Forschung und Praxis 2006-01-19

According to the characteristics of high speed face milling process, models dynamic cutting forces and frequency spectrum were established. By means analysis for cutter, law influence cutter’s structure parameters on performance cutter was acquired, machining aluminum alloy developed, evaluation processed based experiment. The results indicate that more teeth greater contact angle can make energy dispersible, higher rake depress forces, improve effectively cutter. High with five takes better...

10.4028/www.scientific.net/kem.375-376.663 article EN Key engineering materials 2008-03-01

With the demand of acquiring high-accuracy blade surface by repeated grinding, a theoretical investigation is presented on rapid measurement for grinding process. The polygon approximation method used in this paper which uses corner points as starting compared with traditional approximation. feature are obtained iteratively from points, have maximum curvatures corresponding region. In order to obtain surface, chosen control construct initial fitting B-spline and then modifies them meet...

10.4028/www.scientific.net/amr.988.281 article EN Advanced materials research 2014-07-01
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