Venti racconti / Gianna Manzini

• Record Nr.: UNIBAS000033059
• Autore: Manzini, Gianna
• Pubbl/distr/stampa: [Milano] : Mondadori, 1941
• Descrizione fisica: 345 p. ; 19 cm
• Collana: Lo specchio
• Lingua di pubblicazione: Italiano
• Formato: Materiale a stampa
• Livello bibliografico: Monografia

Nanometer frequency synthesis beyond the phase-locked loop / / Liming Xiu

• Record Nr.: UNINA9910820686903321
• Autore: Xiu Liming
• Pubbl/distr/stampa: Hoboken [New Jersey] : , : John Wiley & Sons, , 2012; [Piscataqay, New Jersey] : , : IEEE Xplore, , [2012]
• ISBN: 1-280-79376-7; 9786613704153; 1-118-34794-3; 1-118-34795-1; 1-118-34792-7
• Descrizione fisica: 1 online resource (340 p.)
• Collana: IEEE Press Series on Microelectronic Systems ; ; v.25
• Disciplina: 621.381/32
• Soggetti: Timing circuits; Frequency synthesizers; Very high speed integrated circuits
• Lingua di pubblicazione: Inglese
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Note generali: Description based upon print version of record.
• Nota di bibliografia: Includes bibliographical references and index.
• Nota di contenuto: PREFACE xi -- 1 CLOCK SIGNAL IN ELECTRONIC SYSTEMS 1 -- 1.1 The Significance of Clock Signal 1 -- 1.2 The Characteristics of Clock Signal 5 -- 1.3 Clock Signal Driving Digital System 18 -- 1.4 Clock Signal Driving Sampling System 24 -- 1.5 Extracting Clock Signal From Data: Clock Data Recovery 30 -- 1.6 Clock Usage in System-on-Chip 32 -- 1.7 Two Fields: Clock Generation and Clock Distribution 33 -- 2 CLOCK GENERATION: EXISTING FREQUENCY SYNTHESIS TECHNIQUES 37 -- 2.1 Direct Analog Frequency Synthesis 38 -- 2.2 Direct Digital Frequency Synthesis 39 -- 2.3 Indirect Method (Phase-Locked Loop Based) 41 -- 2.4 The Shared Goal: All Cycles Have Same Length-in-Time 51 -- 3 TIME-AVERAGE-FREQUENCY 53 -- 3.1 The Scale of Level and the Scale of Time 53 -- 3.2 What Is Frequency? 54 -- 3.3 Reinvestigating the Frequency Concept: the Birth of Time-Average-Frequency 56 -- 3.4 Time-Average-Frequency in Circuit Implementation 59 -- 3.5 Average Frequency, Time-Average-Frequency, and Fundamental Frequency 61 -- 3.6 The Need of a Theory 62 -- 3.7 The Summary: Why Do We Need Time-Average-Frequency? 63 -- 4 FLYING-ADDER DIRECT PERIOD SYNTHESIS ARCHITECTURE 65 -- 4.1 The Working Principle 65 -- 4.2 The Major Challenges in the Flying-Adder Circuit 68 -- 4.3 The Circuit of Proof of Concept 74 -- 4.4 The Working Circuitry 77 -- 4.5 Frequency Transfer Function, Frequency Range, Frequency Resolution, and Frequency Switching Speed 87 -- 4.6 The Technique of Post Divider Fractional Bits Recovery 88 -- 4.7 Flying-Adder PLL: FAPLL 90 -- 4.8 Flying-Adder Fractional Divider 91 -- 4.9 Integer-Flying-Adder Architecture 92 -- 4.10 The Algorithm to Search Optimum Parameters 98 -- 4.11 The Construction of the Accumulator 99 -- 4.12 The Construction of the High Speed Multiplex 104 -- 4.13 Non-2's Power Flying-Adder Circuit 107 -- 4.14 Expanding VCO Frequency Range in Nanometer CMOS Processes 109 -- 4.15 Multiple Flying-Adder Synthesizers 110 -- 4.16 Flying-Adder Implementation Styles 111 -- 4.17 Simulation Approaches 112 -- 4.18 The Impact of Input Mismatch on Output Jitter 113 -- 4.19 Flying-Adder Circuit as Digital Controlled Oscillator 127 -- 4.20 Flying-Adder Terminology 128 -- 4.21 Flying-Adder Synthesizer and Time-Average-Frequency: The Experimental Evidence 129 -- 4.22 Time-Average-Frequency and Setup Constraint: Revisit 154 -- 4.23 Sense the Frequency Difference: The Time-Average-Frequency Way 156 -- 4.24 Flying-Adder and Direct Digital Synthesis (DDS): The Difference 157 -- 4.25 Flying-Adder for Phase (Delay) Synthesis 158 -- 4.26 Flying-Adder for Duty Cycle Control 162 -- 4.27 Flying-Adder Synthesizer in Reducing the Number of PLLs in SoC 163.; 5 DIGITAL-TO-FREQUENCY CONVERTER 167 -- 5.1 Two Ways of Representing Information 167 -- 5.2 The Converters for Transforming Information 168 -- 5.3 The Two Cornerstones of the Digital-to-Frequency Converter 170 -- 5.4 The Theoretical Foundation of Flying-Adder Digital-to-Frequency Converter 172 -- 5.5 Convert the Spurious Energy to Noise Energy 193 -- 5.6 Move Spurs Around 198 -- 5.7 Spread the Energy 201 -- 5.8 Performance Merits 205 -- 6 THE NEW FRONTIER IN ELECTRONIC SYSTEM DESIGN 211 -- 6.1 The Clocking Challenges in Reality 211 -- 6.2 Flying-Adder and Its Three Major Application Areas 216 -- 6.3 Flying-Adder for On-chip Frequency Generation 218 -- 6.4 Flying-Adder as Adaptive Clock Generator 222 -- 6.5 Flying-Adder as On-chip VCXO 230 -- 6.6 Flying-Adder for Frame Rate Synchronization and Display Monitor Accommodation 237 -- 6.7 Flying-Adder for Frequency Synchronization in Digital Communication: A Preview 240 -- 6.8 Flying-Adder for Clock Data Recovery 242 -- 6.9 Flying-Adder DLL for Deskew 255 -- 6.10 Flying-Adder for Digital Frequency-Locked Loop (Flying-Adder DFLL) 256 -- ; 6.11 Flying-Adder for Digital Phase-Locked Loop (Flying-Adder DPLL) 262 -- 6.12 Flying-Adder Technology for Dynamic Frequency Scaling 262 -- 6.13 Flying-Adder as 1-bit DDFS 264 -- 6.14 Flying-Adder for Spread Spectrum Clocking 265 -- 6.15 Flying-Adder for Driving Sampling System 268 -- 6.16 Flying-Adder for Non-uniform Sampling 271 -- 6.17 Flying-Adder as Digital FSK Modulator 273 -- 6.18 Flying-Adder for PWM/PFW DC-DC Power Conversion 274 -- 6.19 Integrate Clocking Chips into Processing Chips 275 -- 7 LOOKING INTO FUTURE: THE ERA OF "TIME" 279 -- 7.1 The Four Fundamental Technologies in Modern Chip Design 279 -- 7.2 "Time"-Based Analog Processing 281 -- 7.3 "Time" and Frequency: Encoding Messages Through Modulation 283 -- 7.4 Manipulate "Time": The Tools 283 -- 7.5 It Is Time to Use "Time" 284 -- APPENDICES 287 -- Appendix 4.A: The VHDL Code for Flying-Adder Synthesizer 287 -- Appendix 4.B: How Close Can It Reach an Integer? 296 -- Appendix 4.C: The Seed and Set in Integer-Flying-Adder PLL 299 -- Appendix 4.D: The Number of Carries From an XIU-Accumulator 302 -- Appendix 5.A: The Flying-Adder State Machine Model (perl) 303 -- Appendix 5.B: The Flying-Adder Waveform Generator (perl) 307 -- Appendix 5.C: The Flying-Adder Waveform Generator with Triangular Modulation (perl) 310 -- Appendix 5.D: The Flying-Adder Waveform Generator with Random Modulation (perl) 314 -- Appendix 6.A: The FA-DCXO Tangent Line and Linearity Measurement 318.; INDEX 321.
• Sommario/riassunto: Introducing a new, pioneering approach to integrated circuit designNanometer Frequency Synthesis Beyond Phase-Locked Loop introduces an innovative new way of looking at frequency that promises to open new frontiers in modern integrated circuit (IC) design. While most books on frequency synthesis deal with the phase-locked loop (PLL), this book focuses on the clock signal. It revisits the concept of frequency, solves longstanding problems in on-chip clock generation, and presents a new time-based information processing approach for future chip design.Beginning with the basics, the book explains how clock signal is used in electronic applications and outlines the shortcomings of conventional frequency synthesis techniques for dealing with clock generation problems. It introduces the breakthrough concept of Time-Average-Frequency, presents the Flying-Adder circuit architecture for the implementation of this approach, and reveals a new circuit device, the Digital-to-Frequency Converter (DFC). Lastly, it builds upon these three key components to explain the use of time rather than level to represent information in signal processing.Provocative, inspiring, and chock-full of ideas for future innovations, the book features:. A new way of thinking about the fundamental concept of clock frequency. A new circuit architecture for frequency synthesis: the Flying-Adder direct period synthesis. A new electronic component: the Digital-to-Frequency Converter. A new information processing approach: time-based vs. level-based. Examples demonstrating the power of this technology to build better, cheaper, and faster systemsWritten with the intent of showing readers how to think outside the box, Nanometer Frequency Synthesis Beyond the Phase-Locked Loop is a must-have resource for IC design engineers and researchers as well as anyone who would like to be at the forefront of modern circuit design.

Information for a Better World: Shaping the Global Future : 17th International Conference, iConference 2022, Virtual Event, February 28 – March 4, 2022, Proceedings, Part II / / edited by Malte Smits

• Record Nr.: UNINA9910548171703321
• Pubbl/distr/stampa: Cham : , : Springer International Publishing : , : Imprint : Springer, , 2022
• ISBN: 9783030969608; 9783030969592
• Edizione: [1st ed. 2022.]
• Descrizione fisica: 1 online resource (379 pages)
• Collana: Information Systems and Applications, incl. Internet/Web, and HCI, , 2946-1642 ; ; 13193
• Disciplina: 302.231; 004
• Soggetti: Application software; Database management; Computer networks; Computers; Information storage and retrieval systems; Computer and Information Systems Applications; Database Management; Computer Communication Networks; Computing Milieux; Information Storage and Retrieval
• Lingua di pubblicazione: Inglese
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Nota di bibliografia: Includes bibliographical references and index.
• Nota di contenuto: Bibliometric Analysis and Data Visualization of Archival Science Journal Literature (1971-2020) .-Analysis of the Dynamics among State Libraries, Local Libraries, and Citizens in the United States -- Controversial ‘Black Legend’ concept as misinformation or disinformation related to history: where do we go from here in 21st century information field? -- The Rural Information Penalty -- Predicting the usage of scientific datasets based on article, author, institution, and journal bibliometrics -- Library, Information Science, and Archives Doctoral Research trends in Australia -- Elapsed collective ; memory: Looking for the forgotten classic works in Library and Information Science -- Putting Community-Based Learning and Librarianship into Practice -- Information Governance & Ethics; Data Science; Human-Computer Interaction & Technology¸ Information Behaviour & Retrieval¸ Communities & Media¸ Health Informatics -- Online “helpful” lies: An empirical study of helpfulness in fake and authentic online reviews -- Setting up a Checkpoint for Research on the Prevalence of Journal Data Policies: A Systematic Review -- Internet access and bridging the digital divide: the crucial role of universal service obligations in telecom policy -- Toward a Practice-Based Approach to Privacy Literacy -- Good governance and national information transparency: A comparative study of117 countries -- Involve humans in algorithmic fairness issue: A systematic review -- Tensions between intellectual property law and freedom of expression: a UK perspective -- An Annotation Schema for the Detection of Social Bias in Legal Text Corpora -- Selling Political Data: How Political Ad Tech Firms’ Discourses Legitimate Microtargeting -- Data Science; Human-Computer Interaction & Technology¸ Information Behaviour & Retrieval¸ Communities & Media¸ Health Informatics -- A Brief Typology of Time: Temporal Structuring and Dissonance in Service Provision for People Experiencing Homelessness -- Exploiting Transfer based Multitask Learning for the Detection of Media Bias in News Articles -- Data Analytics Usage, Absorptive Capacity and Sharing Economy Innovation Performance -- Cross-Regional Analysis of the Aging Phenomenon of Biomedical Scholars -- Practicing what is preached: Exploring reproducibility compliance of papers on reproducable research -- A Higher Purpose: Towards a Social Justice Informatics Research Framework -- XCoref: Cross-document Coreference Resolution in the Wild -- Impartial Predictive Modeling and he Use of Proxy Variables -- Human-Computer Interaction & Technology¸ Information Behaviour & Retrieval¸ Communities & Media¸ Health Informatics -- Flexibility, Occupation and Gender: Insights from a Panel Study of Online Freelancers -- Causal Discovery and Knowledge Linkage in Scientific Literature: a case study in biomedicine -- Facial Recognition Interaction in a University Setting: Impression, Reaction, and Decision-making -- The need for transparent demographic group trade-offs in Credit Risk and Income Classification -- Data Capitalism, Microsoft’s Planetary Computer, and the Biodiversity Informatics Community -- Planning and running a low-contact UX design workshop during the pandemic: Challenges and design implications -- Testing the Generalization of Neural Language Models for COVID-19 Misinformation Detection -- Identifying Machine-Paraphrased Plagiarism -- An Ensemble Framework for Dynamic Character Relationship Sentiment in Fiction -- The Origin and Value of Disagreement Among Data Labelers: A Case Study of Individual Differences in Hate Speech Annotation -- Folk Theories and User Strategies on Dating Apps – How users understand and manage their experience with algorithmic matchmaking -- ontextual Perceptions of Feminine-, Masculine- and Gender-Ambiguous-Sounding Conversational Agents -- An Initial Analysis of E-Procurement Search Behaviour -- Mobile Devices as Information Discovery Tools for Young Children – A Multi-Method Study on Children’s and Parents’ Perspectives -- Conversational Interaction with Historical Figures: What’s it good for? .-Hybrid digital card sorting: new research technique or mere variant? -- Improving Community Detection Performance in Heterogenous Music Network by Learning Edge-type Usefulness Distribution -- Information literacy, transition, and risk in the COVID-19-environment -- Intentions to Seek Information about COVID-19 ; Vaccine among Young Adults: An Application of the Theory of Planned Behavior -- Exploring the Relationship Between Youth Information Behavior, Substance Use, and Substance Use Expectancies: A Pilot Story -- Access to Information Two Years After an ICT4D Project in Bangladesh: New Digital Skills and Traditional Practices -- Understanding and Predicting Characteristics of Test Collections in Information Retrieval -- Sentiment and Network Analysis of Twitter Reactions to the U.S. Birthright Citizenship Ban Debate -- Understanding Information and Communication Opportunities and Challenges for Rural Women through the SustainableLivelihood Framework -- Communities & Media¸ Health Informatics -- You Are What You Tweet: Profiling Users by Past Tweets to Improve Hate Speech Detection -- A Digital Bridge: Increasing Digital Access to Low-Income Job Seekers and the Role of Community Organizations -- Using Local Community to Ease Long Haul Uncertainty during the COVID-19 Pandemic -- Perceiving Libraries in a Making Context: Voices of Arts and Crafts Hobbyists -- Flames of Justice in a Virtual Garden: An Analysis of a Digital campaign on Twitter Surrounding the Death of an Indian Celebrity -- Health Informatics -- Advice Giving in Medical Research Literature -- Professional identity and perceived crisis severity as antecedents of healthcare professionals’ responses to health misinformation on social media -- “She seems more human”: Understanding Twitter users’ credibility assessments of dementia-related information -- Hands-Free Electronic Documentation in Emergency Care Work through Smart Glasses -- Privacy Attitudes andCOVID Symptom Tracking Apps: Understanding Active Boundary Management by Users -- YouTube As a Helpful and Dangerous Information Source for Deliberate Self-harming Behaviours.
• Sommario/riassunto: This two-volume set LNCS 13192-12193 constitutes the refereed proceedings of the 17th International Conference on Information for a Better World: Shaping the Global Future, held in February 2022. Due to COVID-19 pandemic the conference was held virtually. The 32 full papers and the 29 short papers presented in this volume were carefully reviewed and selected from 167 submissions. They cover topics such as: Library and Information Science; Information Governance and Ethics; Data Science; Human-Computer Interaction and Technology¸ Information Behaviour and Retrieval¸ Communities and Media¸ Health Informatics.