Lei Liu

ORCID: 0000-0003-0481-0708
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Research Areas
  • Optical measurement and interference techniques
  • Advanced X-ray Imaging Techniques
  • Advanced Manufacturing and Logistics Optimization
  • Manufacturing Process and Optimization
  • Evaluation and Optimization Models
  • Digital Holography and Microscopy
  • Cloud Computing and Resource Management
  • Advanced Sensor and Control Systems
  • Software-Defined Networks and 5G
  • Industrial Automation and Control Systems
  • Collaboration in agile enterprises
  • Petri Nets in System Modeling
  • Quantum Dots Synthesis And Properties
  • Network Traffic and Congestion Control
  • Innovative Teaching and Learning Methods
  • Caching and Content Delivery
  • Educational Technology and Assessment
  • Engineering and Test Systems
  • Competency Development and Evaluation
  • Economic Analysis and Policy
  • Economic and Fiscal Studies
  • Wireless Sensor Networks and IoT
  • Product Development and Customization
  • Earthquake Detection and Analysis
  • Advanced Decision-Making Techniques

Shandong University of Science and Technology
2008-2020

Bohai University
2016

Changchun University of Technology
2015

Hubei University
2012

Wuhan Business University
2012

Henan University of Urban Construction
2008

Pingdingshan University
2008

Rutgers, The State University of New Jersey
2008

Purpose The purpose of this paper is to propose a method for assessing the lean construction management performance (LCMP) engineering projects using analytic network process-fuzzy comprehensive evaluation (ANP-FCE) model. Design/methodology/approach Literature review and questionnaire surveys were used achieve an index system LCMP. data needed calculate weights indices derived from surveys. ANP Super Decisions (SD) software verify validity weights. FCE was adopted carry out LCMP, results...

10.1108/ecam-01-2019-0020 article EN Engineering Construction & Architectural Management 2019-07-29

Purpose The purpose of this paper is to focus on the assembly quality copier products, specifically, concentrating prediction operator‐induced defect. Design/methodology/approach Based Shibata model, design‐based complexity redesigned. And Sony Standard Time replaced by Fuji Xerox in calculation process‐based complexity. Furthermore, different correlation functions are attempted and comparatively studied regression analysis. Thereby, a new defect rate model proposed validated with three...

10.1108/01445150910987745 article EN Assembly Automation 2009-09-25

The dissertation aims to achieve two goals. First, it attempts establish a new theoretical framework—the collaborative scientific conceptual change model, which explicitly attends social factor and epistemic practices of science, understand change. Second, report the findings classroom study investigate how apply this framework examine trajectories in CSCL environment provide pedagogical implications. Two simulations were designed help students make connections between macroscopic substances...

10.7282/t3057g5h article EN 2008-01-01

Soft resources, which are system software components that use hardware or synchronize the of hardware, playing a critical role in performance multi-tier web systems, and thus it is quite important to tune soft resource allocation for using limited resources obtain maximum effectiveness. In this paper, we integrate both theoretical experimental studies problem. Specifically, apply queueing network model formulating conduct measurements based on RUBiS benchmark precise parameters. Quantitative...

10.1109/icws.2016.73 article EN 2016-06-01

Endotoxins, also called lipopolysaccharides (LPS), are mostly found in the outer membrane of Gram-negative bacteria, which widely used as a common expression system to produce some biological products. The presence small amounts endotoxin can cause side effects host organism such shock, tissue injury, and even death. Due these reactions, it is essential remove endotoxins final In actual production process, contamination occur at any process unit. this article, we review structure...

10.62051/ijphmr.v2n1.21 article EN cc-by-nc Deleted Journal 2024-08-29

10.3724/sp.j.1187.2011.00075 article EN JOURNAL OF ELECTRONIC MEASUREMENT AND INSTRUMENT 2011-02-14

A present logistic chain is a cooperative system with multiple partners. Batch processing function and passing value uncertainty are two important properties, time-related schedulability analysis key for improving efficiency of business operations in system. logical time Petri net proposed order to model analyze property, batch chains. The methods presented calculating property different types transitions such as input transitions, output traditional transitions. An example given illustrate...

10.1109/access.2020.2978940 article EN cc-by IEEE Access 2020-01-01

Inventory management is the basis for automobile manufacturing enterprises normal production and marketing.At present,Automobile inventory main bottleneck caused by low level of information technology.From perspective supply chain,Application collaborative theory method、the technology internet things,establishing a virtual warehouse,Achieve improved situation enhance core competitiveness, improve status industry's purpose.

10.2991/msetasse-15.2015.200 article EN cc-by-nc 2015-01-01

Carrying out mechanical equipment operation management can improve the economic efficiency for enterprises, prevent accidents, ensure production safety, and promote reform of machinery maintenance system.Using computer system to manage is necessary requirements information age.For difficulties development, this paper conducted database design.Following design process conceptual design, logical physical design.Conceptual using E-R diagram approach, suggested a link between entities entity;...

10.2991/ameii-16.2016.258 article EN cc-by-nc 2016-01-01

Digital holography is one of the most widely used quantitative phase imaging technologies at present, owing to its non-contact, high-accuracy and full-filed measurement. However, when optical path difference induced by measurement sample larger than wavelength, a unwrapping algorithm has be utilized unwrap retrieve actual phase. And existing algorithms suffer huge computational burden slow retrieval speed. Although they have been greatly improved, their speed limited unwrapping. In order...

10.7498/aps.72.20230473 article EN Acta Physica Sinica 2023-01-01

Benefitting from the high measurement efficiency, off-axis digital holography (DH) has become a most powerful DH technique for fast and high-accuracy measurement. Owing to carrier frequency, real image can be isolated easily in Fourier spectrum of one hologram, so that transform algorithm (FTA) is widely used realize phase retrieval. In FTA, important tasks figure out accurate peak position then shift center remove carrier. However, owing digitalization always not located at an integral...

10.7498/aps.71.20211509 article EN Acta Physica Sinica 2022-01-01
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