Suchen und Finden

Titel

Autor

Inhaltsverzeichnis

Nur ebooks mit Firmenlizenz anzeigen:

 

Advances in Communication, Devices and Networking - Proceedings of ICCDN 2018

Advances in Communication, Devices and Networking - Proceedings of ICCDN 2018

Rabindranath Bera, Subir Kumar Sarkar, Om Prakash Singh, Hemanta Saikia

 

Verlag Springer-Verlag, 2019

ISBN 9789811334504 , 574 Seiten

Format PDF, OL

Kopierschutz Wasserzeichen

Geräte

213,99 EUR

Mehr zum Inhalt

Advances in Communication, Devices and Networking - Proceedings of ICCDN 2018


 

Organizing Committee

6

Chief Patron

6

Patron

6

General Chair

6

International Advisory Committee

6

National Advisory Committee

7

Technical Programme Committee

8

Convener

9

Co-conveners

9

Preface

10

Contents

12

About the Editors

18

A Simple VIS–NIR LED-Based Model for Estimation of Plant Chlorophyll

20

1 Introduction

21

2 Materials and Methods

22

2.1 Single-Leaf Method

22

2.2 Spectrophotometer Method

22

2.3 Design of the System

22

3 Results and Discussion

23

3.1 Comparison of SRVI for Different Methods

24

4 Conclusion

27

References

27

A Novel High-Performance Leakage-Tolerant Keeper Domino Circuit for Wide Fan-In Gates

29

1 Introduction

29

2 Power Consumption

31

3 Leakage-Controlled Keeper

32

4 Simulation and Result

33

5 Conclusion

36

References

36

Drain-Doping Engineering and its Influence on Device Output Characteristics and Ambipolar Conduction on a Splitted-Drain TFET Model

38

1 Introduction

38

2 Device Structure and Parameters

39

3 Simulation Setup

40

4 Results and Discussion

40

4.1 Drain Output Characteristics

40

4.2 Optimization of Ambipolar Conductivity

42

5 Conclusion

42

References

42

Implementation of a Doped Pocket Region in Order to Enhance the Device Performance of MOSFET

45

1 Introduction

45

2 Device Structure and Simulation Setup

46

2.1 Fabrication Steps

47

2.2 Simulation Setup

47

3 Results and Discussions

49

3.1 Drain Biasing

49

3.2 Gate Biasing

49

3.3 Comparison of Conventional MOSFET and Proposed MOSFET

50

4 Conclusion

51

References

52

Design of Digital-to-Analog Converter Using Dual Pair Differential Amplifier in 180 nm CMOS Technology

53

1 Introduction

53

2 System Architecture

54

2.1 Current Source

55

2.2 Switch Driver

55

2.3 Gilbert Cell Design

55

2.4 Rail-to-Rail Operation

57

3 simulation results

58

4 Conclusion

60

References

60

An Analytical Surface Potential Model for Highly Doped Ultrashort Asymmetric Junctionless Transistor

61

1 Introduction

61

2 Model Derivation

62

3 Model Verification and Discussions

65

4 Conclusion

68

References

68

Analytical Modeling of Surface Potential for Double-Gate MOSFET

70

1 Introduction

70

2 Double-Gate MOSFET

71

3 Derivation of Surface Potential of Double-Gate MOSFET

72

4 Results and Discussions

73

5 Conclusion

76

References

76

Grid Impedance Measurement in Low-Voltage Network

78

1 Introduction

78

2 Proposed Method

80

3 Results and Discussion

83

4 Conclusions

84

References

85

Fault Localization on the Transmission Line Using FDOST and RBFNN

86

1 Introduction

86

2 Fast Discrete Orthogonal Stockwell Transform

87

3 Radial Basis Function Neural Network (RBFNN)

88

4 System Description and Fault Simulation

89

5 Feature Extraction and Fault Localization

90

6 Result and Analysis

91

7 Conclusion

93

References

93

Low-Voltage Hardware-in-Loop Test Model Using Real-Time Digital Simulator for Single-Phase Converter

94

1 Introduction

94

2 Review Work

95

3 Materials and Methods

96

3.1 Block Schematic of Proposed HIL

96

3.2 Mathematical Model of Boost Converter

97

3.3 Converters-RTDS Interfacing at Low Voltage Level

98

4 Experimentation

98

4.1 Duty Cycle Controller Using TL494

98

4.2 HIL Test of the Boost Converter

99

4.3 Case Studies and Simulation Results

99

5 Conclusion

101

References

102

Power Quality Improvement by Active Shunt Filter with Hysteresis Current Controller

103

1 Introduction

103

2 Active Shunt Filter

104

2.1 Calculation of Reference Current by P-Q Theory

105

2.2 Hysteresis Current Controller

107

3 MATLAB Simulink Model

107

4 Result and Discussion

108

5 Conclusion

110

Appendix

110

References

110

Evaluation of Energy Power Spectral Distribution of QRS Complex for Detection of Cardiac Arrhythmia

112

1 Introduction

113

2 Materials and Methods

114

2.1 Datasets

114

2.2 Preprocessing of Noisy ECG Signal

114

2.3 R-Peaks Localization

114

2.4 Q and S Inflection Points Localization

115

3 Feature Extraction from QRS Complex

116

3.1 Continuous Wavelet Transform Using FFT Algorithm (CWTFT)

116

3.2 One-Way ANOVA

120

4 Conclusions

120

References

121

Radiometric Calibration of RISAT-1 SAR Image Using Integral Method

123

1 Introduction

123

2 Background Study

124

2.1 Calibration Field and Alignment

126

2.2 Radar Cross Section

126

3 Methodology of SAR Calibration

127

4 Integral Method of Calibration

127

5 Study Area and Data Set

129

6 Results and Discussion

129

7 Conclusion

132

References

132

Optimization of Microstrip Patch Array Antenna for Gain Enhancement

134

1 Introduction

134

2 Antenna Parameters

135

2.1 Antenna Design

136

2.2 2?×?2 Patch Antenna and Its Return Loss

137

2.3 2?×?2 Patch Antenna with Fractal

138

2.4 4?×?4 Patch Antenna

140

3 Conclusions

141

References

142

Design of a Dual-Band Low-Profile Single-Arm Spiral Antenna for Vehicular Applications

144

1 Introduction

144

2 Antenna Design

145

3 Experimental Results

146

3.1 Return Loss Measurements

146

3.2 Radiation Pattern Measurements

147

4 Discussion and Conclusion

149

References

150

Application of Defected Ground Structure for Stable Gain with Ultrawide Bandwidth

151

1 Introduction

151

2 Theory, Parametric Studies and Proposed Structure

153

2.1 Theory, Parametric Studies

153

2.2 Proposed Structure

155

3 Results and Discussions

155

4 Conclusion

157

References

158

Novel Composite Dielectric Resonator Antenna for 5G Applications

160

1 Introduction

160

2 Antenna Configuration

161

3 Results

163

4 Conclusion

163

References

166

Design of a Dual-Band Rectangular Microstrip Patch Antenna with Diagonal Slit for Its Use in L- and S-Band Communications

168

1 Introduction

168

2 The Design Consideration

169

2.1 Calculation for Width (W)

169

2.2 Calculation of Effective Dielectric Constant (?eff)

169

2.3 Calculation of Actual Length of the Patch (Leff)

170

3 The Antenna Configuration

170

4 The Return Loss Measurement

171

4.1 The Radiation Pattern

171

5 Discussion and Conclusion

173

References

174

Modeling and Analysis of Metamaterial-Based Antenna for Wi-Fi and WLAN Applications

175

1 Introduction

175

2 Design of the 4?×?4 SRR Array

176

3 Analysis of the Metamaterial Structure

177

4 Conclusion

180

References

181

Microstrip Line Fed Two Element E-Plane HDRA Antenna Array

182

1 Introduction

182

2 Antenna Array Design

183

2.1 Resonant Frequency

183

2.2 Study of Coupling

183

2.3 Antenna Array Geometry

183

2.4 Study of Coupling

185

3 Conclusion

187

References

187

Design and Development of MIMO Radar

189

1 Introduction

189

2 System Modeling

190

2.1 Transmitter

191

2.2 Channel

192

2.3 Receiver Signal Processing

193

3 Results

193

3.1 Target Detection by Using SISO and MIMO

194

3.2 Characterization of the Target

194

3.3 Conclusion

195

References

195

Gain Enhancement of Microstrip Patch Using Different Array Configurations

196

1 Introduction

197

2 Antenna Design

197

2.1 Results and Discussion

200

3 Summary

203

References

203

Implementation of a Feature-Adaptive Colour Image Copyright Protection Scheme

205

1 Introduction

205

2 Watermark Embedding and Extraction

206

2.1 Feature Region Extraction

206

2.2 Lifting Wavelet Transform

207

2.3 Encoder and Decoder

208

3 Result Analysis

210

4 Conclusion

214

References

214

Design of Phased MIMO Radar and Its Performance Analysis Based on Different Beamforming Algorithms

216

1 Introduction

216

2 Phased MIMO Radar Model

217

3 Linearly Constrained Minimum Variance (LCMV)

218

4 Minimum Variance Distortionless Response (MVDR)

219

5 Simulation Work

220

6 Results

220

7 Conclusion

222

References

222

LabVIEW-Based Software and Hardware Implementation of 16-QAM Modem

224

1 Introduction

224

2 Quadrature Amplitude Modulation

225

2.1 16-QAM

225

3 LabVIEW Implementation of 16-QAM Modem

226

3.1 16-QAM Modulator

226

3.2 16-QAM Demodulator

227

4 Simulation Result

228

5 Hardware Implementation

228

6 Conclusion

230

References

230

A Study on Capacity of MRC over OWDP Fading Channels

231

1 Introduction

231

2 Channel and System

232

3 The Pdf of Output SNR for MRC Receiver

233

4 Adaptive Transmission System Capacity

234

4.1 Channel Inversion with Fixed Rate (CIFR)

234

4.2 Truncated Channel Inversion with Fixed Rate (TIFR)

235

4.3 Constant Transmitting Power

236

4.4 Optimal Power and Rate Adaption at the Transmitter

237

5 Numerical Results and Discussion

238

6 Conclusions

239

References

239

A Novel Wavelet-Based Image Defogging Using Dark Channel Prior and Guided Filter

241

1 Introduction

242

2 Review of Previous Works

242

3 Proposed Algorithm

243

4 Simulation Results and Performance Analysis

245

5 Conclusions

247

References

247

New Approach to Image Segmentation Based on Neighborhood-Influenced Fuzzy C-Means Clustering

249

1 Introduction

249

2 Proposed Method

251

3 Result

252

4 Performance Analysis

253

5 Conclusion

254

References

254

Morphological Change Detection in Terror Camps of Area 1 and 2 by Pre- and Post-strike Through MOAB: A

255

1 Introduction

255

1.1 Background of Mother of All Bombs (MOAB)

256

2 Change Detection Through Second-Order Statistical Parameters

257

3 Experimental Results

258

3.1 Comparative Plot for Pre and Post-strike Texture Feature Variations for Area 1

261

3.2 Comparative Plot for Pre and Post-strike Texture Feature Variations for Area 2

261

3.3 Image Enhancement Using Decorrelation Stretcher (DS)

261

3.4 Colour Maps Through Decorrelation Stretcher

262

4 Conclusion

263

References

265

Morphological Change Detection in Terror Camps of Area 3 and 4 by Pre- and Post-strike Through MOAB: B

266

1 Introduction

266

2 Methodology for Working of GLCM (Gray Level Co-occurrence Matrix)

267

3 Experimental Results

268

3.1 Comparative Plots for Pre- and Post-strike Texture Feature Variations for Area 3

271

3.2 Comparative Plots for Pre- and Post-strike Texture Feature Variations for Area 4

272

3.3 Image Enhancement Using Decorrelation Stretcher (DS)

272

3.4 Change Maps Through Decorrelation Stretcher

273

4 Conclusion

274

References

275

A Study of Digital Communication over Generalized K-Fading Channels

277

1 Introduction

277

2 Channel and System Model

278

3 Performance Calculation of Generalized K-Fading

279

3.1 ASER

279

3.2 Outage Probability

281

4 Numerical Results and Discussions

281

5 Conclusions

284

References

284

An Improved Genetic Algorithm Based Solution to Vehicle Routing Problem over OpenMP with Load Consideration

285

1 Introduction

285

2 Related Work

287

2.1 Genetic Algorithm: An Overview

287

2.2 State-of-the-Art Approaches to VRP

288

3 Genetic Programming Approach to VRP

289

4 Parallelized Version of the Proposed Method Over OpenMP

291

4.1 OpenMP Programming Model

291

4.2 Algorithmic Modeling of the Problem Over OpenMP

292

5 Experimental Results

293

6 Conclusion and Future Scope

295

References

296

Capacity Analysis in Generalized K-Fading Channels

297

1 Introduction

297

2 Generalized K-Fading Model

298

3 Adaptive Transmission System Capacity

299

3.1 Channel Inversion with Fixed Rate (CIFR)

299

3.2 Truncated Channel Inversion with Fixed Rate (TIFR)

300

3.3 Constant Transmitting Power

301

4 Numerical Results and Discussion

302

5 Conclusions

304

References

304

Speckle Reduction of Ultrasound Image via Morphological Based Edge Preserving Weighted Mean Filter

306

1 Introduction

307

2 Review of Previous Works

307

3 Proposed Method of Speckle Reduction

308

3.1 Morphological Operation

308

3.2 Weight Estimation

309

3.3 Artifact Removal

310

4 Experimental Results and Analysis

311

4.1 Quantitative Analysis

311

5 Conclusion

315

References

315

Autonomous Vehicle—A Miniaturized Prototype Development

316

1 Introduction

316

1.1 Case Study: Google Autonomous Car

317

1.2 ADAS and AV

317

2 Problem Definition

318

3 Prototype Development

318

3.1 Hardware Development

318

3.2 Software Development

319

3.3 Data Acquisition

320

3.4 Signal Processing

321

4 Discussion and Conclusion

322

References

322

BER Analysis for Lattice Reduction Aided MIMO Receiver

324

1 Introduction

324

2 System Model

325

2.1 Maximum-Likelihood Estimation

326

2.2 Zero Forcing

326

2.3 Minimum Mean Square Estimation

326

3 Lenstra–Lenstra–Lovász (LLL) Lattice Basis Reduction

327

4 LLL Algorithm Analysis

327

4.1 Algorithm

327

4.2 Gram–Schmidt Orthogonalization (GSO)

328

4.3 Size Reduction

329

4.4 Lovász Condition

329

4.5 Swapping

329

5 Linear Detection Combined with Lattice Reduction

330

6 LR-Aided ZF Detection

330

7 LR-Aided MMSE Detection

330

8 Simulated Result

331

9 Conclusion

334

References

334

Sparse Coding of Bottleneck Features-Based i-Vector Representation for Language Recognition

336

1 Introduction

336

2 Bottleneck Feature-Based i-Vector for LR

337

2.1 DNN Bottleneck Feature

337

2.2 i-Vector Representation

338

2.3 GMM Posteriors

338

2.4 DNN Posteriors

338

3 Proposed LR Approaches

339

3.1 Learned-Exemplar Dictionary-Based LR Approach

339

3.2 Language Recognition Using D-KSVD

339

3.3 Language Recognition Using LC-KSVD

340

4 Experimental Setup

341

4.1 Database

341

4.2 Bottleneck Features

341

4.3 The i-Vector Extraction

341

4.4 Classification and Score Calibration

342

5 Results and Discussion

342

6 Conclusion

345

References

345

Review on Indoor Channel Characterization for Future Generation Wireless Communications

347

1 Introduction

347

2 Environments

348

3 Indoor Technologies

349

4 Radio Propagation

350

5 Channel Modeling

350

5.1 Empirical Models

350

5.2 Physical Models

351

6 Types of Measurement Systems

352

7 Conclusion

352

References

353

Phased-MIMO Radar in Low SNR Regime

355

1 Introduction

355

2 Mathematical Model

356

2.1 Discussion Output SNR

357

2.2 MIMO Radar

357

2.3 Phased-MIMO Radar

357

2.4 Low SNR Approximation

358

3 Simulation Results

359

4 Conclusion

359

References

360

Implementation and Analysis of Spectrum Sensing Using Energy Detection Method

361

1 Introduction

361

2 Mathematical Modeling

362

3 Results

364

4 Conclusion

369

References

369

A Comparative Study on Different Genres of Image Restoration Techniques

370

1 Introduction

370

1.1 Varieties of Noise

371

2 Noise Removal Techniques

374

2.1 Filtering Techniques

375

3 Selection of the Complaisant Filter

376

4 Various Types of Filter

377

4.1 Mean Filter

377

4.2 Median Filter

377

4.3 Order Statistics Filter

378

4.4 Adaptive Filter

378

4.5 Wiener Filter

378

5 Implementation of Median Filter

378

6 Conclusion

378

References

379

Realization of Communication System with Remote Access Using LabView

381

1 Introduction

381

2 Extraction of Message Bit and BER Calculation

382

3 Modulation

382

4 For Calculation of Bandwidth of Message Signal, Circuit Was Designed

383

5 Methodology

383

5.1 Block Diagram

383

6 Result Analysis

384

6.1 Generation and Transmission of Message Signal

384

6.2 Extraction of Message Signal and BER Calculation

384

7 Modulation

387

7.1 SNR Versus BER Plot

388

8 Conclusion

388

References

389

Rational Approximation Methods for a Class of Fractional-Order SISO System in Delta Domain

390

1 Introduction

390

2 Rational Approximation of Fractional-Order SISO System

391

3 Simulation and Results

393

4 Conclusion

396

References

397

Utilization of Electric Vehicle for LFC of Multi-area System Using Wind Driven Optimized Classical Controllers

398

1 Introduction

398

2 System Modelling

400

3 Wind Driven Optimization Technique

401

4 Result and Analysis

403

4.1 Response Comparison for of I, PI and PID Controllers

403

4.2 Performance Comparison Under Random Loading

406

4.3 Comparison of Dynamic Responses in Presence and Absence of Electric Vehicle

406

5 Conclusion

408

Appendix

408

References

408

Lift Automation and Material Sorting Using PLC

410

1 Introduction

410

2 Problem Definition

412

3 Solution Strategy

412

4 Results Obtained

413

5 Conclusion

417

References

417

Automated Computer-Aided Lung Cancer Detection System

419

1 Introduction

419

1.1 CAD System

420

1.2 Soft Computing

420

2 Review of Previous Work on Lung Nodules

421

3 Database Used

422

4 Methodology

422

5 Result

423

6 Conclusion

425

References

426

Indirect Field Oriented Control for Three-Phase Induction Motor Drive Using DSP Controller

428

1 Introduction

428

2 Materials and Methods

430

2.1 Field-Oriented Control or (FOC)

430

2.2 Hysteresis Modulation

430

3 The Schematic of the Proposed Work

430

3.1 Expressions for Estimation of Parameters for IFOC Implementation

431

3.2 IFOC Algorithm

433

4 Experimentation and Results

433

4.1 IFOC Based VSI-IM Simulation Model

433

4.2 Hardware Implementation

434

5 Conclusion

435

References

436

Smart Ambient Weather Monitoring System for Hikers

437

1 Introduction

438

2 Design of Proposed System

438

2.1 System Architecture

438

3 Working Principle

439

4 Result and Discussion

441

5 Conclusion

443

References

444

Implementation of a Temperature Control Process Trainer Through PID Controller Designed with Siemens S7-1200 PLC and HMI

445

1 Introduction

445

2 Control System Description

446

3 Modelling and Simulation

448

4 Comparison

450

5 Conclusion

450

References

451

An Efficient and Enhanced Mechanism for Message Hiding Based on Image Steganography Using ECC-Cryptosystem

453

1 Introduction

453

2 Flow Diagram of Our Proposed Methodology

455

3 Proposed Algorithm

455

4 Implementation of Proposed Method

457

4.1 Phase 1

457

4.2 Reverse Process of Phase 1

459

4.3 Phase 2

459

5 Result and Analysis

460

5.1 Mean Square Error

461

5.2 Peak Signal to Noise Ratio

461

5.3 Security

461

6 Conclusion

463

References

463

Outdoor Obstacle Detection Module to Assist Visually Challenged

465

1 Introduction

466

2 Methodology

466

2.1 Block Diagram

467

2.2 Image Acquisition

468

2.3 Image Processing

468

2.4 Haar Training

468

2.5 Distance Measurement

469

3 Device Set up

469

3.1 Raspberry Pi Module

469

3.2 Raspberry Pi Camera

469

3.3 Hc-Sr04 Ultrasonic Module

470

3.4 Buzzer/Audio

470

4 Results and Discussions

470

4.1 Real-Time Output

470

4.2 Ultrasonic Output

471

4.3 Buzzer/Audio Output

471

4.4 On-Field Detection

472

5 Conclusion

472

References

472

Design of PID Controller for Maximum Power Point Tracking for PV Energy Systems

474

1 Introduction

474

2 Modeling of Solar Cell

475

3 Designing of DC–DC Boost Converter

475

4 Designing of PID Controller

476

5 Simulation Results

477

5.1 Parameters Values

478

5.2 Simulation Results

478

6 Discussion and Conclusion

479

References

480

Fleet Tracking Using Internet of Things

481

1 Introduction

481

1.1 Global Positioning System (GPS)

482

1.2 NodeMCU

483

2 Methodology

483

2.1 Block Diagram

483

2.2 Back-End: Server and Application

485

2.3 Practical Model and Result

485

3 Conclusion

487

References

487

IOT-Based Navigation for Visually Impaired Using Arduino and Android

488

1 Introduction

488

2 System Design

489

2.1 System Configuration

490

2.2 Microcontroller

490

2.3 Obstacle Detection Unit

491

2.4 Warning Unit

491

2.5 APIs and Database

492

3 Results

495

4 Conclusion and Future Work

496

References

496

Implementation of Lightweight Crypto Processor Using Logistic Map for Wireless Sensor Network

498

1 Introduction

499

2 Stream Cipher

500

3 Principles of Random Number Generations

501

3.1 Logistic Map as Sequence Generator

502

3.2 Chaotic Behaviour Analysis of the Logistic Map

502

4 Hardware Implementation of Logistic Sequence Generator

504

5 Model for Stream Cipher Using Logistic Sequence Generator

505

6 Experimental Results

506

7 Conclusion

507

References

507

Application of IoT-Enabled Smart Agriculture in Vertical Farming

509

1 Introduction

510

2 System Overview

512

3 System Design

512

4 Results and Discussion

513

5 Conclusion

515

References

516

UVM-Based Verification IP of AMBA AXI Protocol Showing Multiple Transactions and Data Interconnect

517

1 Introduction to AMBA

517

2 Introduction to AXI Protocol

518

3 Key Features of AXI Protocol

519

3.1 Individual Address/Control and Data Phases

519

3.2 Unaligned Transfers

519

3.3 Multiple Outstanding Addresses

520

3.4 Out-of-Order Transaction Completion

520

4 Analysis and Results

520

4.1 Separate Address/Control and Data Phases

520

4.2 Out-of-Order Completion

523

5 Conclusion

524

References

524

Prospect of Improving Internet of Things by Incorporating Software-Defined Network

525

1 Introduction

525

2 IoT Key Challenges and Opportunities with SDN Solutions

528

3 Existing Literature

529

4 Research Issues

530

5 Conclusion

531

References

532

Smart Healthcare Systems Using Cloud Computing Environments

533

1 Introduction

533

2 Related Work

535

3 System Architecture

535

3.1 Offloading Process

536

4 Result Analysis

538

4.1 Improving Data Storage Capacity and Processing Time

538

5 Conclusion

538

References

539

Cloud-Based Multilayer Telemedicine Architecture: A Case Study

541

1 Introduction

541

2 Proposed Architecture

542

3 Creation of Database

543

3.1 Entity Relationship Diagram (ERD)

544

3.2 Data Flow Diagram (DFD)

545

3.3 Diagnosis Algorithm

546

4 Validation of Telemedicine Software

547

5 Discussion and Conclusion

549

References

549

Smart Water Pump Controller

550

1 Introduction

551

2 Problem Definition

551

3 Analysis of Problem

552

4 Proposed Solution Strategy

552

5 Design Strategy for the Solution

553

6 Working Principle

554

6.1 Arduino UNO

554

6.2 Raindrop Sensor

554

6.3 Ultrasound Sensor

555

6.4 Breadboard

555

6.5 Relay

557

6.6 NodeMCU

557

7 Implementation and Result

557

8 Conclusion

558

References

559

IoT-Based Smart Home

560

1 Introduction

560

2 System Design

561

3 Working of the System

562

3.1 Appliances Feedback System

562

3.2 Water and Electricity Monitoring Unit

563

4 Testing and Results

564

5 Conclusion

564

References

565

Implementation of Home Surveillance System Using Local Area Network and Internet of Things

566

1 Introduction

566

2 System Design

567

2.1 Software System Design

569

3 Conclusion

571

References

571

Author Index

572