Advanced Graphic Communication, Printing And Packaging Technology: Proceedings Of 2019 10th China Academic Conference On Printing And Packaging (lecture Notes In Electrical Engineering (600))

This book includes a selection of peer-reviewed papers presented at the 10th China Academic Conference on Printing and Packaging, which was held in Xi'an, China, on November 14-17, 2019. The conference was jointly organized by the China Academy of Printing Technology, Beijing Institute of Graphic Communication, and Shaanxi University of Science and Technology. With 9 keynote talks and 118 papers on graphic communication and packaging technologies, the conference attracted more than 300 scientists. The proceedings cover the latest findings in a broad range of areas, including color science and technology, image processing technology, digital media technology, mechanical and electronic engineering, Information Engineering and Artificial Intelligence Technology, materials and detection, digital process management technology in printing and packaging, and other technologies. As such, the book appeals to university researchers, R & D engineers and graduate students in the graphic arts, packaging, color science, image science, material science, computer science, digital media, and network technology 2019 10th China Academic Conference on Printing and Packaging Conference Executive Committee Conference Academic Committee Preface Contents Color Science and Technology Experiment Based No-Reference Objective Image Quality Metric for Testing Performance of Different Tone Mapped Images Abstract 1 Introduction 2 Experiment and Model Development 3 Results and Discussions 4 Conclusions References Correlations Between Colour Discrimination and Colour Quality Metrics Abstract 1 1 Introduction 2 2 Experimental Method 2.1 Experimental Setup 2.2 Experimental Design and Procedure 3 3 Results and Discussion 3.1 Colour Discrimination in Different Lighting Conditions 3.2 Correlation Analysis 4 4 Conclusions References Analysis on Color Rendering Performance of Digital Acquisition System for Grotto Murals Abstract 1 Introduction 2 Experimental Equipment and Conditions 2.1 Digital Acquisition Equipment 2.2 Light Sources 2.3 Related Software 3 Detection Method 4 Results and Analysis 4.1 Color Gamut 4.2 Color Rendering Accuracy 5 Conclusions Acknowledgements References Testing of Colour Quality Models Using Colour Preference Assessment Results Abstract 1 Introduction 2 Experimental Methods 2.1 Light Sources 2.2 Samples and Experimental Environment 2.3 Procedures 3 Results 4 Modelling 5 Conclusions 6 Compliance with Ethical Standards References Improved Spectral Reflectance Reconstruction Algorithm Based on Matrix R Method Abstract 1 1 Improved Matrix R Method 1.1 ICA Method and Smooth Inversion Method 1.2 Improved Matrix R Method 2 2 Experiment and Results 3 3 Conclusions Acknowledgements References Research on Colour Visual Preference of Light Source for Black and White Objects Abstract 1 Introduction 2 Experimental Method 2.1 Experimental Setup 2.2 Experimental Design 2.3 Experimental Procedure 3 Result and Discussion 3.1 Effects of Object Characteristics on Preference 3.2 Preference Analysis of Selecting Black or White Objects 3.3 Contrastive Analysis of Black and White Objects and Coloured Objects 4 Conclusions Compliance with Ethical Standards References Research on Color Vision Anomaly Under Light Source of Color LEDs Abstract 1 1 Introduction 2 2 Metamerism and Quantization Method 3 3 Color Discrimination Experiment Under Color LED 3.1 Experiment Condition and Procedure 3.2 Data Processing 4 4 Conclusions Compliance with Ethical Standards References An Analysis of the Influence of Measurement Illuminant Conditions on the Printing Color Appearance Abstract 1 Introduction 2 Color Samples Production 2.1 Production Method 2.2 Production of Color Samples 3 Color Sample Grouping and Color Difference Evaluation 3.1 Chroma Measurement and Grouping 3.2 Subjective Evaluation 3.3 Analysis of Results 4 Conclusions References Study on the Effectiveness of Colour Quality Metrics in Preference Prediction at Different Illuminance Levels Abstract 1 Introduction 2 Method 2.1 Experimental Setup 2.2 Experimental Design 2.3 Experimental Procedure 2.4 Analysis of Colour Preference Metrics 3 Result and Discussion 3.1 Analysis of Preference at Different E and CCT 3.2 Correlation Analysis 4 Conclusions Compliance with Ethical Standards References The Performance of Color Matching Functions in Different Field Sizes Abstract 1 Introduction 2 Color Matching Experiment 2.1 Displays 2.2 Color Stimuli 2.3 Different Field Size Conditions 3 Data Analysis 3.1 Performance of Different CMFs 3.2 Observer Variability in Different Field Sizes 4 Conclusions Compliance with Ethical Standards References To Build a Novel HDR/WCG Display Model Abstract 1 1 Introduction 2 2 System Establishing 2.1 Liquid Crystal Display (LCD) Panel 2.2 Digital Light Projector (DLP) 2.3 Fresnel Lens and Diffuser 3 3 Measurement 4 4 Gamut Enlarge Proposal 5 5 Conclusions References A New Auto-brightness Control Technology for Mobile Terminal Under Various Ambient Illumination Abstract 1 Introduction 2 Experiments 3 Results and Discussion 3.1 Observer Variation 3.2 Data Analysis of Categorical Judgment Method and ACR Calculation 4 Conclusions Compliance with Ethical Standards References Chinese Skin Colour Preference of Different Genders Abstract 1 Introduction 2 Methodology 3 Result and Analysis 3.1 Inter-observer Variation and Intra-observer Variation 3.2 Agreement Between Female and Male Observers 3.3 Final Results Versus Whiteness Versus Hue 4 Conclusions Compliance with Ethical Standards References Yellow Color Acquisition of Old Yellowed Book Based on Color Management with Small Color Gamut Abstract 1 Introduction 2 Methods 2.1 Preparation of the Standard Color Card with Small Color Gamut 2.2 Generation of ICC Profile for Scanning Device with the Prepared Standard Color Card 3 Results 4 Conclusions Acknowledgements References Research Review of Color Appearance Phenomenon and Models Abstract 1 Introduction 2 Color Appearance Models with Basic Framework 2.1 Early Models Developed from CIELAB 2.2 CIECAM97s Color Appearance Model 2.3 CIECAM02 Color Appearance Model 2.4 Image Color Appearance Model—iCAM 3 Application and Values of Color Appearance Models 4 Conclusions Acknowledgements References Study on Effect of Device Link Profile in Color Management Abstract 1 Introduction 2 Experiments 2.1 Experimental Equipment and Materials 2.2 Experimental Principle and Methodology 2.2.1 Experimental Principle 2.2.2 Methodology 3 Results 3.1 Comparison of Standard ICC and Device Link 3.1.1 Creating Device Link Profile 3.1.2 Color Conversion of Device Link 3.1.3 Color Conversion of Standard ICC 3.1.4 Results 3.2 Effect of K Channel Setting on DVL 4 Conclusions Acknowledgements References Experimental Research on the Theoretical Basis of Density Balance Equation Abstract 1 Statement of Problem 2 Experimental Design and Data Acquisition 3 Experimental Analysis of Density Proportionality 4 Experimental Analysis of Density Additivity 4.1 Additive Experimental Analysis of Experimental Data Based on Inter-color (I.E. Red, Green and Blue) Scales 4.2 Additivity Experiment Analysis Based on Grey Scale Experiment Data 5 Research Conclusion References Reference Images Development for Evaluation of Tone Mapping Operators Abstract 1 1 Introduction 2 2 Methodology 3 3 Results and Discussion 4 4 Conclusions Compliance with Ethical Standards References The Influence of Database Establishment on Color Difference in Computer Color Matching Abstract 1 1 Introduction 2 2 Experiment 2.1 Establishment of the Basic Database 2.1.1 Basic Ink Blending 2.1.2 Color Measurement and Database Establishment 2.2 Standard Colors Matching Experiment 2.2.1 Comparison of Seven Standard Color Differences in Three Substrate Databases 2.2.2 Comparison of Seven Standard Color Differences in Three Printing Speed Databases 2.2.3 Comparison of Seven Standard Color Differences for Two Orders of Magnitude Proportional Spline Database 2.3 Influencing Factors Analysis 3 3 Conclusions Acknowledgements References Research on Yellow Reproduction of Antique Books Based on Small Color Gamut Abstract 1 Introduction 2 Experiment Process 2.1 Large Color Gamut Color Management 2.2 Small Gamut Color Management 2.2.1 Color Card of Small Gamut 2.2.2 ICC Profile of Small Gamut 2.2.3 Color Difference Calculation 3 Results 4 Conclusions Acknowledgements References Analysis of Color Gamut in Color 3D Printing Abstract 1 1 Introduction 2 2 Principle of PolyJet Color 3D Printing Technology 3 3 Experimental Design 4 4 Result Analysis 4.1 Overall Color Gamut Comparison Analysis 4.2 Analysis of Coloring Characteristics of Different Lightness 5 5 Conclusions Acknowledgements References Study on the Influencing Factors of Color Reproduction in Color 3D Printing Abstract 1 Introduction 2 Compare of Different Color 3D Printing Technologies 2.1 FDM Color Printing 2.2 LOM Color Printing 2.3 3DP Color Printing 2.4 Polyjet Color Printing 2.5 SLM or SLS Color Printing 3 Experiments 3.1 Equipment, Scheme and Test Instrument 3.2 Data Curves 3.3 Discussion 4 Conclusions Acknowledgements References Image Processing Technology Region of Interest Extraction Based on Convolution Neural Networks for Image Linear Distortion Correction Abstract 1 Introduction 2 Convolution Neural Networks for ROI Extraction 2.1 Network Architecture 2.2 Loss Function 2.3 Training 2.4 Experiments 3 Perspective Transformation 4 Conclusions Acknowledgements References Research on Image Output Method Based on Optical Fiber Array Features Abstract 1 Introduction 2 Principle of Laser Dot Scanning Imaging 2.1 Standard Optical Fibers Array Without Distance 2.2 Optical Microfibers Array with Distance 3 Image Scanning Based on Dot Array with Distance 3.1 Equidistant Dot Array 3.2 Non-equidistant Dot Array 4 Image Scanning Method Based on Non-equidistant Dot Array 5 Conclusions Acknowledgements References Study on Image Retrieval Method for Color Information Abstract 1 Principles of Image Retrieval for Color Information 1.1 Representation of Image Color Features 1.2 Quantification and Measurement of Color Features 2 Method of Image Retrieval 2.1 Conversion of Color Space 2.2 Improvement of Color Space Quantization Method 2.3 Improvement of Similarity Measurement Method 3 Analysis of Experimental Results 3.1 Objective Data Analysis 3.2 Subjective Data Analysis 4 Conclusions Acknowledgements References Image Restoration of Dun Huang Murals Based on Auto-encoder Generative Adversarial Neural Network Abstract 1 1 Introduction 2 2 Auto Encoder Generative Adversarial Neural Network 2.1 Principle of Image Completion Based on GAN 2.2 Network Structure 3 3 Experiment and Result Analysis 3.1 Data Set Acquisition and Experimental Environment 3.2 Experimental Results and Analysis 4 4 Conclusions Acknowledgements References Optimal Tone Reproduction of Different Oil Painting Style Images Abstract 1 Introduction 2 Experiment 2.1 Photographs Used in the Paper 2.2 Setting of Tone Reproduction Curves 2.3 Production Method of Oil Painting-Stylized Images 2.3.1 Brush Stroke 2.3.2 Application of Brush Strokes 2.4 Optimum Tone Reproduction 2.5 Evaluation Method: A Method of Psychometric Scaling for a Ranking Scale 3 Result and Discussion 3.1 Seurat Style Image 3.1.1 Results of Landscape1 3.1.2 Results of Landscape2 3.1.3 Results of Portrait1 3.1.4 Results of Portrait2 3.2 Monet Style Images 3.2.1 Results of Landscape1 3.2.2 Results of Landscape2 3.2.3 Results of Portrait1 3.2.4 Results of Portrait2 3.3 Van Gogh-Style Images 3.3.1 Results of Landscape1 3.3.2 Results of Landscape2 4 Conclusions Compliance with Ethical Standards References Study on Image Graying Method for Defect Detection of Area Elements in Map Printing Abstract 1 Introduction 2 Graying Method in Industrial Production 3 Weight-Adjustment Graying Method 3.1 Statistic Image Color Information 3.2 Calculate the Difference Between Elements and Background 3.3 Determine the Graying Weight 4 Experimental Verification 5 Conclusions References Blind Image Quality Assessment Based Automatical Motion Blur Restoration Algorithm Abstract 1 Intrduction 2 Related Works 2.1 General Motion Blurring Model 2.2 Estimation of Fuzzy Angle 2.3 Estimation of Fuzzy Length 2.4 No-Reference Image Quality Index 3 Our Proposed Algorithm 4 Experiments and Discussions 5 Conclusions Acknowledgements References Research on a Slice-Based Voxelization Method Abstract 1 1 Introduction 2 2 Voxelization 2.1 Slice and Rasterization 2.2 Draw the Contour of the Model 3 3 Experimental Results 4 4 Conclusions Acknowledgements References Digital Media Technology Study on Gesture Recognition Method for Special Effects Abstract 1 1 Introduction 2 2 Relevant Technical Principles 2.1 Multiview Hand Key Points Detection 2.2 Gesture Recognition Method 2.2.1 Key Points 2.2.2 Location Relation of Key Points 3 3 Design and Implementation of Gesture Recognition and Special Effect Application 3.1 Gesture Recognition Module 3.2 Particle Effects and Display 4 4 Comparison of Experimental Results 4.1 Comparison of Gesture Recognition Accuracy 4.2 Comparison of Gesture Types 5 5 Conclusions Acknowledgements References Design of Mobile APP for Printing Pricing Based on Android Abstract 1 Introduction 2 Demand Analysis 3 System Design 3.1 Technical Solution 3.2 Interface Design 3.3 Database Design 3.4 Functional Module Design 4 System Implementation 5 Conclusions Acknowledgements References Production and Experience of VR Roaming System in History Museum of Tianjin University of Science and Technology Abstract 1 Introduction 2 Development Software Introduction 3 Design Ideas and Framework of VR Roaming System in School History Museum 4 Design and Production of VR Roaming System in School History Hall 4.1 Construction of 3D Model of School History Museum 4.2 UI Interface Production 4.3 Audio Import 4.4 Production of Scene Roaming 5 Testing and Optimization 6 Conclusions References Development of Multi-functional Intelligent Packaging for Skin Care Products Based on AR Technology Abstract 1 Introduction 2 AR Technology Principle 2.1 Feature Matching Technology 2.2 Tracking Registration Technology 2.3 Display Technology 2.4 Human-Computer Interaction Technology 3 Skin Care Product Mart Packaging Development 3.1 Design and Manufacture of Packing Structure 3.2 Design and Production of Packaging Drawings 3.3 Material Collection and Production 3.4 APP Development 3.5 Partial Code Flow Chart 4 Result 5 Conclusions References Use Augmented Reality to Improve the Sales of Agricultural Products-Take Lemon as an Example Abstract 1 Intrduction 2 Formation Mechanism of Purchasing Behavior and Problems in Agricultural Products Industry 3 The Utility and Application Strategy of AR Technology in the Formation of Purchasing Behavior 3.1 Immersion in Multidimensional Interaction and Information Selection Autonomy 3.2 Entertainment Promotion and Marketing to Enhance Cognitive Depth 3.3 Integrating Background Data to Provide Effective Information Services 4 Take Lemon as an Example to Develop AR Bookmark APP 5 Conclusions References Printing Engineering Technology Preparation for Electrochromic Devices on PET Substrate Using Screen Printing Abstract 1 1 Introduction 2 2 Experiment 2.1 Materials 2.2 Preparation of the Film of PEDOT:PSS and Post-treatment 2.3 Preparation of ECDs 2.4 Characterization of Films and Devices 3 3 Result and Discuss 3.1 Films of PEDOT:PSS Based on PET 3.2 SR of Films with Different Formulas and Post-treatment 3.3 Properties of ECDs 4 4 Conclusions Acknowledgements References Fabrication of Flexible Temperature Sensor Based on Printed Electronics Abstract 1 Introduction 2 Experimental 2.1 Materials 2.2 Instruments 2.3 Preparing of the Thermosensitive Ink 2.4 Fabrication of Flexible Temperature Sensor 3 Results and Discussion 3.1 Effect of Sintering Temperature on Microstructure and Electrical Conductivity of Ag Electrodesz 3.2 Sensing Characteristics of Flexible Temperature Sensor 3.3 Response Time of the Temperature Sensor 3.4 Hysteresis of Temperature Sensor Based on Printed Electronics 3.5 Effect of the Spontaneous Heating of Temperature Sensor on Resistance 4 Conclusions Acknowledgements References Fabrication of Micro-Structure Electrode for Supercapacitor by Inkjet Printing Abstract 1 Introduction 2 Experimental Section 2.1 Materials 2.2 Equipment 2.3 Experimental Methods 2.3.1 Preparation of GO/AgNO3 Solution 2.3.2 Fabricated Micro-Structure Surface by Inkjet Printing 2.3.3 Deposition GO/AgNO3 on Micro-Structure Surface 2.4 Characterization 3 Results and Analysis 4 Conclusions References Study and Simulation on Forming Process of Ink Drops Abstract 1 1 Introduction 2 2 Establishment of Droplet Formation Model 3 3 Results and Discussion 3.1 Droplet Formation Process 3.2 Surface Tension Analysis 3.3 Frequency Analysis 3.4 Entrance Drive Speed Analysis 4 4 Conclusions Acknowledgements References Inkjet Printing of Water-Soluble Quantum Dots Abstract 1 1 Introduction 2 2 Materials and Methods 2.1 QDs Ink Preparation 3 3 Results and Discussions 3.1 Fluorescence Properties of QDs-COOH 3.2 Dimensionless Analysis 3.3 Coffee-Ring Effect 3.4 Inkjet Printing of QDs Patterns 4 4 Conclusions Acknowledgements References Study on Grating Constant of Matte Light Pillar Holographic Materials Abstract 1 1 Introduction 2 2 Experiment 2.1 Holographic Materials 2.2 Spectral Measurement 2.3 Grating Equation 3 3 Conclusions Acknowledgements References Determination Method for Index Weight of RPMS Reconfigurable Scheme Abstract 1 1 Introduction 2 2 Construction of Comprehensive Evaluation Index System 3 3 Analytic Hierarchy Process 4 4 Method of Interval Fuzzy Number 5 5 Method of Triangular Fuzzy Number 5.1 Constructing Fuzzy Judgment Matrix 5.2 Calculating the Comprehensive Weight of Index 5.3 Determining Weights of Index at Different Levels 6 6 Conclusions Acknowledgements References Research and Application on the Effect of Micro-Information Magnification Based on Human Visual System Abstract 1 1 Introduction 2 2 Theories 2.1 Construction of Moiré Pattern 2.2 Rayleigh Criterion 3 3 Micro-Information Magnification Experiments and the Results 3.1 Micro-Information Magnification Experiment 3.2 Micro-Information Magnification Effect and Analysis 4 4 Conclusions Acknowledgements References Research on Digital Watermarking Technology Based on MATLAB Abstract 1 1 Introduction 2 2 Digital Watermarking Algorithms and Evaluation 2.1 Digital Watermarking Algorithm 2.2 Realization and Evaluation of Digital Watermark 2.3 Effect of Watermark Embedding and Extraction Without Attacks 2.4 Quality Evaluation Under Different Attack 3 3 Conclusions References A Summary of Thermosentive CTP Plate and Its Application and Research in China Abstract 1 Introduction 2 The Development of Thermal CTP Plates 2.1 Thermal CTP Plates 2.1.1 Thermal CTP Plate that Needs Heat-Treatment Before Development 2.1.2 Thermal CTP Plate Without Prebaking Treatment 2.2 The Processless Thermal CTP Plate 2.2.1 General Classification of Processless Thermal CTP Plates 2.2.2 Existing Problems and Application Experience of Processless CTP Plate 3 Conclusions Acknowledgements References Data Control Method for Printing Quality Based on Polynomial Regression Abstract 1 Introduction 2 The Data Control Method and Practice for Printing Quality 3 Conclusions Acknowledgements References Study on the Application of G7 Process in Flexographic Printing Abstract 1 Introduction 2 Research Significance 3 Test Conditions of the Printing 4 Analysis and Evaluation of Measurement Results 4.1 First Round Printing Based on Linearization of CTP 4.2 Second Round Printing of Certification Printing 5 Conclusions Acknowledgements References Research on Improving Display Effect of Micro-lens 3D Printing Abstract 1 Introduction 1.1 Micro-lens Array and Its Research Status in 3D Printing 1.2 Proposal of Research Topic 2 Research on Technological Process of Micro-Lens 3D Printing 2.1 Design of 3D Micrographics Combined with Micro-Lens Array 2.2 Fabrication of Micro-lens 3D Optical Film 2.3 Process Control of Micro-lens 3D Printing Technology 3 Results and Discussion 4 Conclusions Acknowledgements References Creative Visualization of Coin Classifier Design Based on 3D Modeling Abstract 1 Introduction 2 Modeling and Solution 3 Output and Analyses 4 Conclusions Acknowledgements References Application and Surface Characterization of Braille Production Based on FDM 3D Printing Abstract 1 Introduction 2 Experiments 2.1 Braille Design 2.2 Braille 3D Printing 3 Experimental Detection and Analysis 3.1 Detection of Size 3.2 Performance Testing 4 Conclusions Acknowledgements References Research on the Printing Suitability of Alcohol-Free Fountain Solution Based on Green Printing Abstract 1 Introduction 2 Basic Theory of Printing Fountain Solution 2.1 Fountain Liquid Fountain Principle 2.2 Analysis of Wetting Mechanism 3 Research on Preparation of Alcohol-Free Fountain Solution 3.1 Wetting Agent Selection 3.2 Composition Analysis of Stabilizer 3.3 Buffer Solution Preparation 4 Test and Analysis of the Printing Suitability of Fountain Solution 4.1 Print Density Test Results Analysis 4.2 Analysis of Dot Expansion Test Results 4.3 Comparative Contrast Test Results Analysis 4.4 Comparative Contrast Test Results Analysis 5 Conclusions Acknowledgements References Review on the Research of Frontier Graphene Conducive Ink Printing Technology Abstract 1 Introduction 2 Preparation Methods of Graphene Ink 3 Primary Dispersion Methods and Difficulties 4 Main Printing Methods of Graphene Ink 4.1 Inkjet Printing 4.2 Screen Printing 4.3 Gravure Printing 4.4 Flexography 4.5 Micro-contact Flexography 5 Conclusions Acknowledgements References Review of Patented Technology of Magnetic Ink Anti-counterfeiting Abstract 1 Introduction 2 Patent Distribution of Magnetic Ink Anti-counterfeiting Technology 3 3Development of Magnetic Ink Anti-counterfeiting Technology 3.1 Magnetic Ink Materials 3.2 Magnetic Ink Anti-counterfeiting Process 3.3 Magnetic Orientation Structure of Magnetic Ink Anti-counterfeiting Printing 4 Prospect of Magnetic Ink Anti-counterfeiting Technology References Critical Tension of Web Wrinkling Abstract 1 Introduction 2 Web Critical Tension Analysis 2.1 Theoretical Model of Web Wrinkling 2.2 Critical Tension 3 Instance Analysis 4 Conclusions Acknowledgements References Packaging Engineering Technology Static Compression Experiment and Finite Element Simulation Analysis of Honeycomb Paperboard Abstract 1 Introduction 2 Mechanical Properties Test of Honeycomb Paperboard 3 Quasi-static Compression Test of Honeycomb Paperboard 4 Finite Element Simulation of Honeycomb Paperboard Quasi-static Compression 5 Comparing Simulation Results and the Experimental Results 6 Conclusions Acknowledgements References Experimental Study on Moisture-Proof Coating for Corrugated Boards and Boxes Abstract 1 Introduction 2 Moisture-Proof Coating Experiments 3 Results and Discussion 4 Conclusions References Research on Personalized Packaging Design Based on Double Gray Cardboard Abstract 1 Introduction 2 Strength Comparison Test of Double Gray Cardboard 2.1 Schematic Diagram of Strength Test 2.2 Strength Test for Single Layer 2.3 Strength Test for Double Layer Without Lamination 2.4 Strength Test for Double Layer Cladding 2.5 Strength Test for Composite Layer 3 Double-Gray Cardboard Splicing Joint Design 3.1 Tear Strength Test of Adjacent Plate Joints 3.2 Double-Layer Double-Grey Board Packaging Structure Design 4 Conclusion Reference Integrated Testing System for Multiple Sensors in Intelligent Packaging Abstract 1 Introduction 2 Construction of Sensor Testing System for Intelligent Packaging 3 Working Principle of Sensor Testing System for Intelligent Packaging 3.1 Data Acquisition 3.2 Data Processing 4 Working Performance of Sensor Testing System for Intelligent Packaging 5 Conclusions References Research Progress and Application of Flexible Humidity Sensors for Smart Packaging: A Review Abstract 1 1 Introduction 2 2 Classification of Flexible Humidity Sensors Based on Sensitive Materials 2.1 Graphene Oxide (GO) 2.2 Carbon Nanotubes 2.3 Other Conductive Materials 3 3 Conclusions Acknowledgements References Study on Paper Packaging Safety of Large Lithium Battery Based on ISTA 3E Abstract 1 Introduction 2 Paper Packaging Structure Design and Material Option 2.1 Structure Design 2.2 Material Option 3 Packaging Safety Experiments 3.1 Experimental Materials and Equipment 3.2 ISTA 3E Testing 3.2.1 Impact Testing 3.2.2 Compression Testing 3.2.3 Vibration Testing 3.2.4 Rotating Edge Drop Testing 3.3 Result and Discussion 4 Conclusions References Process and Quality Study of Cold Fresh Pork Under Low Temperature Plasma Treatment Abstract 1 1 Introduction 2 2 Materials and Methods 2.1 Materials and Reagents 2.2 Plasma Generating Device 2.3 Method 2.3.1 Raw Material Processing 2.3.2 TVB-N Value 2.3.3 pH Determination 2.3.4 Juice Loss Rate 3 3 Results and Discussion 3.1 Sterilization Effects 3.2 TVB-N Effects 3.3 pH Effects 3.4 Juice Loss Rate Effects 4 4 Conclusions Acknowledgements References Mechanical Engineering Technology A Method of Fault Diagnosis for Rolling Bearing in Ink Rollers Based on Analysis of Sound Field Abstract 1 1 Introduction 2 2 Sound Field Construction of Multi-roller System 3 3 Analysis of Sound Field Images Based on BEMD 4 4 Experiments and Results 5 5 Conclusions Acknowledgements References Study on the Structure Optimization of Oven Duct System in Gravure Press Abstract 1 1 Introduction 2 2 Oven Duct Structural Analysis 3 3 Oven Duct System Modeling and Numerical Simulation 3.1 Hydrodynamic Equations 3.2 Duct System Model 3.3 Solution Method 3.4 Analysis of Numerical Simulation Results 4 4 Duct System Structure Optimizations 4.1 Structural Optimization of Funnel-Shaped Duct 4.2 Structural Optimization of Box Duct 5 5 Experimental Verification 6 6 Conclusions Acknowledgements References Robot Hand Based on Multifunctional Tactile Sensor for Warehouse Application Abstract 1 Introduction 2 Material and Fabrication of Flexible Resistance Bending Sensor 3 Control of Robot Hand and Tactile Information Feedback System 3.1 Control of Robot Hand 3.2 Tactile Information Acquisition System for Robot Hand Based on Flexible Tactile Sensor 4 Conclusions References Design of Rectifying Controller Based on Fuzzy PID Control Strategy Abstract 1 Introduction 2 Dynamics Model of the Belt Movement 3 Hardware Composition of the Correction Control System 3.1 Ultrasonic Sensor 3.2 Correction Controller 3.3 Correction Actuator 4 Software Design of the Correction Control System 4.1 Correction Controller Main Program Design 4.2 PC Software Preparation 5 Experimental Results and Analysis 6 Conclusions Acknowledgements References Follow-up Property of Circumferentially Grooved Idle Roller in Roll-to-Roll Manufacturing Abstract 1 1 Introduction 2 2 Mathematical Model of Follow-up Time of the Circumferentially Grooved Roller 3 3 Idle Roller Follow-up Property Parameters 3.1 Bearing Load 3.2 Bearing Friction Torque 4 4 Discussions of Results 5 5 Conclusions Acknowledgements References The Motion Characteristics Analysis and Simulation of the Transverse Sealing Mechanism in a Pillow Bag Packaging Machine Abstract 1 1 Introduction 2 2 Working Principle and Motion Diagram of the Transverse Sealing Mechanism 3 3 Motion Analysis of Transverse Sealing Mechanism 4 4 Specific Study 5 5 Conclusions Acknowledgements References Numerical Simulation of Regenerative Thermal Oxidizer Abstract 1 Introduction 2 Principle and Structure of Regenerative Thermal Oxidizer 3 Regenerator Numerical Simulation 3.1 Establishment of Turbulence Model 3.2 Boundary Condition Setting 4 Results and Discussion 4.1 Relationship Between Pressure Drop and Bed Height 4.2 Thermal Efficiency and Bed Height 5 Conclusions Acknowledgements References Study on Bubble Motion Characteristics Under the Effect of the Difference Stirring System Abstract 1 1 Introduction 2 2 Impeller Agitator Simulation 2.1 Governing Equations 2.2 Original Impeller Modeling 2.3 Twin-Screw Belt Structure Impeller Modeling 3 3 Experiment 4 4 Conclusions Acknowledgements References A Review of FDM Nozzle System for Additional Materials Manufacturing Technology Abstract 1 Introduction 2 Research Status at Home and Abroad 2.1 Advances in FDM Channel Research 2.2 Research Progress of FDM Cooling Device 2.3 Research Progress of FDM Heating Device 2.4 Research Progress of FDM Nozzle Structure 3 Challenges of Nozzle System in the Future 4 Potential Direction and Development Trend 5 Conclusions Acknowledgements References Tooth Profile Optimization for Mixing Proportional Pump of Solvent-Free Laminating Mixer Abstract 1 1 Introduction 2 2 Mathematical Model Analysis of Flow Calculation for Double Arc Gear Pump 2.1 Calculation Model of Instantaneous Flow Quantity of Double Arc Gear Pump 2.2 Analysis of Factors Affecting Flow Pulsation of Double Arc Gear Pumps 3 3 Tooth Profile Optimization Design of Double Arc Gear Pump 4 4 Experimental 5 5 Conclusions Acknowledgements References Information Engineering and Artificial Intelligence Technology Research Progress of Capacitive Flexible Pressure Sensors Abstract 1 Introduction 2 Research Progress in Improving Sensor Performance 2.1 Micro-Nano Structures 2.2 Composite Dielectric Layers 3 Applications of Capacitive Flexible Pressure Sensors 3.1 Intelligent Medical 3.2 Robot 4 Summary and Outlook Acknowledgements References Research on Face Recognition Based on Vertex Energy Minimum Patterns Abstract 1 Introduction 2 Theoretical Research of Face Recognition Algorithms Based on Ricci Curvature Flow 2.1 Discrete Ricci Curvature Flow 2.2 Constructing the Minimum Energy Model of Vertex 3 Face Recognition Based on Ricci Curvature Flow 3.1 Eigenvalue Extraction 3.2 Method Comparison 4 Conclusion Acknowledgements References Transformer-Based Coattention: Neural Architecture for Reading Comprehension Abstract 1 Introduction 2 Model 2.1 Coattention 2.2 Multi-head Attention 2.3 Transformer-Based Coattention (TBC) 2.4 Hybrid Scheme 3 Experiments and Analysis 3.1 Word Representation Analysis 3.2 Hybrid Results 4 Conclusions Acknowledgements References Game Comment Data Mining Based on Text Sentiment Analysis Abstract 1 Introduction 2 Methodology 2.1 Data Collection and Preprocessing 2.2 Build Dictionaries 2.3 Emotion Analysis 2.3.1 Emotional Feature Selection 2.3.2 Training Model 2.4 Attribute Importance Analysis 2.5 Constructing the IPA Plot 2.5.1 SIPA 2.5.2 IPCA 3 Conclusion Acknowledgements References Negative Sentiment Analysis of MOOC Comments Based on Machine Learning Abstract 1 1 Introduction 2 2 Experimental Design 2.1 Data Collection 2.2 Data Preprocessing 2.3 Data Analysis 3 3 Results Analysis 4 4 Summary Acknowledgements References Overview of the Reference Model for Printing Intelligent Factory Abstract 1 Introduction 2 Reference Model for Printing Intelligent Factory 2.1 Reference Model 2.2 Model Architecture 3 Model Application 3.1 Model Application Methodology 3.2 Application of the Model 4 Concl