Kai Wu

ORCID: 0000-0002-8706-5194
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About
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Research Areas
  • Lignin and Wood Chemistry
  • Catalysis for Biomass Conversion
  • Biofuel production and bioconversion
  • Catalysis and Hydrodesulfurization Studies
  • Mobile Agent-Based Network Management
  • Context-Aware Activity Recognition Systems
  • Chemical Synthesis and Reactions
  • Advanced Cellulose Research Studies
  • Metallurgy and Material Forming
  • Polyoxometalates: Synthesis and Applications
  • IPv6, Mobility, Handover, Networks, Security
  • Manufacturing Process and Optimization
  • Vanadium and Halogenation Chemistry
  • Image and Object Detection Techniques
  • Data Visualization and Analytics
  • Handwritten Text Recognition Techniques
  • Network Time Synchronization Technologies
  • Energy Harvesting in Wireless Networks
  • Assembly Line Balancing Optimization
  • Engineering Applied Research
  • Geomechanics and Mining Engineering
  • Innovations in Concrete and Construction Materials
  • Biopolymer Synthesis and Applications
  • Green IT and Sustainability
  • Network Security and Intrusion Detection

Microbiology Institute of Shaanxi
2024

China Tobacco
2023

Chongqing University of Science and Technology
2020-2021

China University of Petroleum, Beijing
2021

Hunan University
2018-2020

State Key Laboratory of Chemical Engineering
2016-2020

Tianjin University
2016-2020

Collaborative Innovation Center of Chemical Science and Engineering Tianjin
2016-2020

Nanjing University of Science and Technology
2020

Southwest Forestry University
2016-2018

Nonproductive adsorption of cellulase on lignin was a major inhibitory mechanism reducing the enzymatic saccharification efficiency lignocellulosic material. The surface and structural properties Fenton reaction-oxidized lignins (FRLs) their effects nonproductive binding enzymes to Avicel were examined. chemistry pretreatment not only decreased ratio syringyl guaiacyl units phenolic OH group content in preparations but increased carboxylic negative zeta potential lignin, all which could be...

10.1021/acssuschemeng.7b04191 article EN ACS Sustainable Chemistry & Engineering 2018-01-23

The interactions between lignin and cellulase play a key role in the effective enzyme saccharification of lignocellulose. This work investigated enhancing effect ethanol organosolv lignins (EOL) from bamboo on hydrolysis pure cellulose. addition EOL-P. amarus EOL-D. sinicus (8 g/L) remarkably increased 72 h glucose yields Avicel, 51.3% to 61.1%, 59.4%, respectively, made much more available for Langmuir adsorption isotherms showed that had lower binding ability enzymes than milled wood...

10.1021/acssuschemeng.6b02475 article EN ACS Sustainable Chemistry & Engineering 2016-12-29

A one-pot process for the depolymerization of lignin-rich corncob residue (LRCR) is investigated in supercritical ethanol over an alumina-supported NiMo (NiMo/Al) alloy catalyst. The LRCR, as a major byproduct enzymatic hydrolysis process, was completely liquefied and effectively transformed into aromatic compounds without formation tar or char under optimal reaction conditions. temperature, time, solvent, initial hydrogen pressure have significant effects on LRCR. highest overall yield...

10.1021/acs.energyfuels.9b01457 article EN Energy & Fuels 2019-08-30

Crack-like defects frequently form in pipes exposed to aggressive environments or during welding fabrication. Appropriate strength matching factors should be determined for process evaluation based on the reliability aspect. In this paper, current research status of codes and standards related requirement weld metals pipeline industry were reviewed. The results showed that almost all considered lower limit pipe tensile as a specimens cross-weld test breaking at position. This was...

10.1016/j.jpse.2021.09.002 article EN cc-by Journal of Pipeline Science and Engineering 2021-09-01

Abstract To screen and evaluate possible functional factors in the bamboo lignin moiety that could block non‐productive adsorption of enzyme proteins on lignin, milled wood (MWL) Fenton oxidized (FOLs) were prepared incorporated enzymatic hydrolysis Avicel. The addition MWL decreased 72 h glucose yields cellulose from 57.1 % to 45.3 %, while FOLs effectively improved digestibility up 69.5 which was 22 higher than system without use FOLs. affinity binding strength cellulase with lower MWL....

10.1002/ente.201700880 article EN Energy Technology 2018-01-23

10.1016/j.cmpb.2011.03.016 article EN Computer Methods and Programs in Biomedicine 2011-05-10

Energy efficiency for activity recognition is a challenging task in the long-term health monitoring applications. To save energy wireless body sensor networks, adaptive compressed classification framework proposed. The proposed mechanism estimates minimum activity-specific compression ratio subject to given accuracy and adaptively adjusts number of samples taken by nodes based on feedback from result recognition. A brute force algorithm utilized quickly find optimal trade-off power...

10.1109/bigcom.2018.00013 article EN 2018-08-01

Intrusion detection system (IDS) is based on data mining technology in this paper. Association rule which a method of will make the boundaries intervals hard. It increase information loss. In paper, novel framework techniques proposed for designing IDS. framework, classification engine, actually core IDS, uses fuzzy association rules building classifiers. Particularly, sets are exploited as descriptive models different classes. Generally, approach outperforms other methods, especially terms...

10.1109/icicis.2011.72 article EN International Conference on Internet Computing and Information Services 2011-09-01

Quality characteristics of steel workpiece and their inspection methods are introduced, the influencing factors surface quality analyzed by tools. A set scheme for cutting temperature force on-line monitoring is worked out. Thin film thermocouple technology was introduced to measure dynamic which affects workpieces. system measuring has been developed. high speed data acquisition card ADlink PCI-9118HG used acquire signals. Simple friendly human-machine interface programmed with application...

10.4028/www.scientific.net/amm.55-57.451 article EN Applied Mechanics and Materials 2011-05-03

A series of metal-doped MoS2, including W-, V-, and Re-doped are prepared via a two-step hydrothermal method, which presents higher activity on the depolymerization enzymatic hydrolysis lignin (EHL) in ethanol as compared to undoped MoS2. At 320 °C for 6 h, highest overall aromatic monomer yield 231 mg/g EHL, alkylphenols (A-Ps) main products with 126.5 is obtained over hydrothermally W-doped MoS2 W/Mo molar ratio 0.1 (Ts-W0.1@MoS2). The sample gives enhancement EHL bio-oils' heating value...

10.1021/cbe.3c00062 article EN cc-by-nc-nd Chem & Bio Engineering 2024-01-31

Harvesting energy from human motion has created an opportunity for battery-free wearable devices to realize long-term activity monitoring. By simply using the collected or acceleration is insufficient distinguish some similar activities very well, it motivates us exploit combination of harvesting kinetic and recognition. An recognition approach SRC-EA proposed, which based on sparse representation classification utilize multimodal information. To validate effectiveness our approach, a sensor...

10.1109/icc.2018.8422998 article EN 2018-05-01

Gear reliability assessment of vehicle transmission has been a challenging issue determining safety in the industry due to significant amount classification errors with high-coupling gear parameters and insufficient high-density data. In terms preprocessing assessment, this paper presents representation generation approach based on generative adversarial networks (GAN) advance performance evaluation as problem. First, no need for complex modeling massive calculations, conditional net (CGAN)...

10.3390/act10050086 article EN cc-by Actuators 2021-04-23

Assembly reliability is an important part of product quality, which greatly affects the level whole machine.Because limitations FMEA and FTA, they are not suitable for assembly complex mechanical equipment.A new functional decomposition method machine (FDWM) proposed modelling in this paper.Firstly, by decomposing into function connection main components, success tree model (STWM) can be established.Secondly, a hybrid combining modified grey relation least squares support vector (MGR-LSSVM)...

10.2507/ijsimm19-2-co9 article EN International Journal of Simulation Modelling 2020-06-09

Targeting at solving the problem of low accuracy existing recognition methods caused by imbalance face data sets in university security system, an unbalanced Data Augmentation method based on Rotate-and-Render-DCGAN is proposed to improve campus. Our goal correct angled faces set through Rotate-and-Render and generate artificial images enrich image database combined with DCGAN classifier's performance recognition. We evaluate compare impact traditional Rotate-and-Render- accuracy. The...

10.1109/iicspi51290.2020.9332396 article EN 2020 IEEE 3rd International Conference of Safe Production and Informatization (IICSPI) 2020-11-28

Raised a new synchronization technology of ARP resource Real-time-batch technology. This is applied on the Ethernet switches. With usage this technology, we achieved reasonable use system resources to ensure consistency resources. We batch reduce utilization CPU, and real-time when doesn't work. dynamic adjustment temporary storage area size timing interval resolve problem between data get better performance. The also carry out technologies detect attack defense. These guarantee system's...

10.1109/icicis.2010.5534734 article EN 2010-06-01
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