cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Nonvolatile Circuits for Memory, Logic, and Artificial Intelligence Slides and Transcript
Creators: Meng-Fan Chang
Publisher: name: IEEE
Year: 2021

2018 ISSCC Tutorials
Abstract- Memory has proven a major bottleneck in the development of energy-efficient chips for IoT applications and artificial intelligence (AI). Recent nonvolatile memory (NVM) devices not only serve as nonvolatile memory macros, but also enable the development of nonvolatile logics (nvLogics) for nonvolatile processors as well as computing-in-memory (CIM) for AI chips. In this tutorial, we begin with an introduction to various NVM technologies (i.e. MRAM, PCM, ReRAM) and the fundamental circuits used in NVM macros. We then review various state-of-the-art circuit techniques for low-power, high-speed on-chip NVM macros. In the third part of the tutorial, we examine some of the challenges involved in the further development of these technologies and review examples of NVM enabled nvLogics (i.e. nvFlipflop, nvSRAM, nvTCAM) for nonvolatile processors and CIMs for AI chips.                                                                                                                                                                                                                                                                                                    Bio - Professor Chang received his M.S. from Pennsylvania State University and his Ph.D. degree from National Chiao Tung University in Taiwan. He is currently a full Professor at National Tsing Hua University, Taiwan. Before 2006, he has worked in industry over 10 years.
Between 1997 and 2006, Dr. Chang worked in the design of circuits for SRAM/Flash compilers at Mentor Graphics (New Jersey, US), TSMC (Taiwan), and IPLib (Taiwan). His research interests include circuit design for volatile and nonvolatile memory, in-memory-computing, artificial intelligence chips, and neuromorphic computing.
Since 2010, Professor Chang has co-authored 35+ top-tier conference papers (14 ISSCC, 14 VLSI, 8 IEDM, and 4 DAC), 30+ IEEE journal papers, and 40+ granted US patents. He is an associate editor for IEEE TVLSI, IEEE TCAD, and IEICE Electronics, and has been serving on the TPC for ISSCC, IEDM (Chair of Memory Technology for 2017), A-SSCC, IEEE CAS Society (Chair Elect of NG-TC), and numerous conferences. He has also been serving as the Associate Executive Director for Taiwan’s National Program of Intelligent Electronics (NPIE) since 2011.
Error Correcting Codes in 5G/NVM Applications Slides and Transcript
Creators: Hsie-Chia Chang
Publisher: name: IEEE
Year: 2021

2018 ISSCC Tutorials
Abstract - The growing needs of efficient data transmission and storage are driving information delivery technologies to new frontiers.  Either in the new radio (NR) links of 5G communications, or in emerging non-volatile memories (NVMs) with continuously increasing capacity, error correcting codes (ECCs) are essential and crucial in maintaining the data correctness.  In this tutorial, we will cover major concepts in ECC design and architecture, including multi-Gb/s LDPC-BC, energy-efficient LDPC-CC, and Polar/Turbo decoders that fulfill different requirements in various 5G scenarios.  For NVM applications, we will introduce 1-error and 2-error correcting scheme with parallel architectures for NOR flash, as well as BCH and LDPC coding schemes for NAND/3D-NAND, to address low-latency and high-throughput solutions.
Bio - Hsie-Chia Chang received the B.S., M.S., and Ph.D. degrees from National Chiao Tung University, Hsinchu, Taiwan, in 1995, 1997, and 2002, respectively, all in electronics engineering.
He was with OSP/DE1, MediaTek Corporation, from 2002 to 2003, where he was involved in decoding architectures for combo single chip.  In 2003, he joined the faculty of the Electronics Engineering Department, National Chiao-Tung University, where he has been a Professor since 2010. His research interests include algorithms and VLSI architectures in signal processing, in particular, error control codes and crypto-systems.  He has published more than 100 IEEE journal/conference papers, and more than 50 U.S./Taiwan patents. Recently, he has focussed on designing high code-rate ECC schemes for flash memory, PUF implementation for secure MCU system, and multi-Gb/s chip implementations for wireless communications. Dr. Chang served as the Deputy Director General with the Chip Implementation Center, Taiwan, since 2017.  He has also served as an Associate Editor of the IEEE Transactions on Circuits and Systems I: Regular Papers since 2012, as well as served as a Technical Program Committee Member of the IEEE Asian Solid-State Circuits Conference from 2011 to 2013, and the International Solid-State Circuits Conference in 2018.  He was a recipient of the Outstanding Youth Electrical Engineer Award from the Chinese Institute of Electrical Engineering in 2010, and the Outstanding Youth Researcher Award from the Taiwan IC Design Society in 2011.
Digital RF Transmitters Slides and Transcript
Creators: Renaldi Winto
Publisher: name: IEEE
Year: 2021

2018 ISSCC Tutorials
Abstract - Direct digital-to-RF conversion at the antenna interface offers many exciting opportunities to push the performance envelope of RF transmitters in efficiency, area, signal bandwidth, and modulation quality. This tutorial will provide a complete overview of digital transmitter architectures, starting from digital bits at the symbol rate all the way to the antenna. We will start at the heart of this architecture, with a review of state-of-the-art, high-efficiency, digital PA topologies. Then we will discuss all auxiliary circuits and digital signal-processing tricks needed around the PA core to enable the transmitter to meet strict signal fidelity and spectrum cleanliness requirement while to simultaneously provide the PA core with the optimal environment for highest efficiency.  Topics for discussion include: digital sample-rate conversion, 1-D and 2-D digital pre-distortion for wideband signals, and peculiarities of signal processing in the polar domain.
Bio - Renaldi Winoto received his Bachelors degree from Cornell University in 2003 and his Ph.D. degree from University of California, Berkeley in 2009. He was with Marvell Semiconductors from 2009 to 2017 where he worked as an Engineering Director and led a group responsible for definitions of RF transceiver architectures and designs of RF power amplifiers for Wireless LAN. In 2017, he joined Tectus Corporation, a stealth-mode start-up. He is a member of the technical program committee for RFIC and ISSCC. His research interest is in mixed-signal and radio-frequency circuits for wireless communication systems.
Basics of Quantum Computing Slides and Transcript
Creators: Edorado Charbon
Publisher: name: IEEE
Year: 2021

2018 ISSCC Tutorials
Abstract - The tutorial introduces quantum computing to a general audience. It begins with the concept of qubit and its representation, followed by 1-qubit quantum gates and qubit measurement. It will then move on to 2-qubit states, entanglement, and 2-qubit gates. Switching gears, the tutorial will discuss quantum Fourier transforms, unitary transforms, and quantum arithmetic. Finally, we will go through a simple quantum algorithm and discuss solid-state implementations of networks of qubits, highlighting the challenges for reading and controlling them. We conclude with future perspectives.
Bio- Edoardo Charbon received the Diploma from ETH Zurich in 1988, the M.S. degree from UC San Diego in 1991, and the Ph.D. degree from UC Berkeley in 1995 all in electrical engineering and EECS. He was with Cadence Design Systems from 1995 to 2000. In 2000, he joined Canesta, Inc., as its Chief Architect. Since 2002, he has been a faculty member at EPFL and, from 2008-2016, at TU Delft. He has authored over 250 papers and two books; he holds 20 patents. His current research interests include 3D imaging, advanced biomedical imaging, quantum integrated circuits, and cryo-CMOS for quantum computing and sensing. Dr. Charbon is a Distinguished Visiting Scholar with the W. M. Keck Institute for Space, California Institute of Technology, a Fellow of the Kavli Institute of Nanoscience Delft, a Distinguished Lecturer of the IEEE Photonics Society, and a Fellow of the IEEE.
Hybridization of Magnetism and Piezoelectricity for an Energy Scavenger based on Temporal Variation of Temperature
Creators: name: Carlioz, L.
name: Delamare, J.
name: Basrour, S.
name: Poulin, G.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Other Computer Science (cs.OH)
subject: FOS: Computer and information sciences

description: Autonomous microsystems are confronted today to a major challenge : the one of energy supply. Energy scavenging, i.e. collecting energy from the ambient environment has been developed to answer this problematic. Various sources have already been successfully used (solar, vibration). This article presents temporal variations of temperature as a new source of exploitable energy. A brief review will take place at the beginning, exposing the different approaches used in the past. Then we will focus our attention on hybridization of magnetism and piezoelectricity. A new kind of thermal generator is proposed and a preliminary model is exposed. Conclusions will be drawn on the suitability of this prototype and the improvements that are needed to increase its potential.
description: Submitted on behalf of EDA Publishing Association (http://irevues.inist.fr/handle/2042/16838)
Single-Photon Detection in CMOS Slides and Transcript
Creators: Matteo Perenzoni
Publisher: name: IEEE
Year: 2021

2018 ISSCC Tutorials
Abstract - Every single photon carries information in position, time, etc. Single-photon devices are now demonstrated and available in several CMOS technologies, but the needed circuits and architectures are completely different from conventional visible light sensors. This tutorial starts from the description of structure and operation of a single-photon detector, and it continues on the definition of circuits for the front-end electronics needed to efficiently manage the extracted information, addressing challenges and requirements. Then, it concludes with an overview of the different architectures that are specific for each application field, with examples in the biomedical, consumer, and space domain.
Bio - Matteo Perenzoni received the Laurea degree in Electronics Engineering from the University of Padova, Italy, in 2002. In January 2004, he joined Fondazione Bruno Kessler (FBK), Trento, Italy, as a research scientist, where he now leads the Integrated Radiation and Image Sensors (IRIS) research unit. He has been collaborating as contract professor with the University of Trento, and visiting researcher at TU Delft. His
research interests include the design of advanced image sensors from single-photon to multispectral sensing.
Postcard from Kathleen Raine to Percy Jarrett, September 12, [1980]
Creators: name: Raine, Kathleen, 1908-2003
Publisher: name: University of Victoria Libraries
Year: 2023
Subjects: subject: Periodical editors
valueUri: http://id.worldcat.org/fast/1058064
subject: Scholars
valueUri: http://id.worldcat.org/fast/1106878
subject: Philobiblion (Bookseller : Victoria, B.C.)
subject: Authors, English
valueUri: http://id.worldcat.org/fast/821945
subject: Critics
valueUri: http://id.worldcat.org/fast/883769
subject: Authors
valueUri: http://id.worldcat.org/fast/821688
subject: Periodicals--Publishing
valueUri: http://id.worldcat.org/fast/1058100
subject: Jarrett, Percy W.
subject: Poets
valueUri: http://id.worldcat.org/fast/1067778
subject: Poets, English
valueUri: http://id.worldcat.org/fast/1067870
subject: Skelton, Robin
valueUri: http://id.worldcat.org/fast/51853
subject: Jarrett, Elizabeth
subject: Book industries and trade
valueUri: http://id.worldcat.org/fast/836171
subject: English poetry--Manuscripts
valueUri: http://id.worldcat.org/fast/912320
subject: Raine, Kathleen, 1908-2003
valueUri: http://id.worldcat.org/fast/52672
subject: Skelton, Sylvia

description: Part of a collection of letters from award-winning British poet and scholar Kathleen Raine to Percy Jarrett, owner of the dealership Philobiblion which specialized in literary books and manuscripts. Most of the letters discuss the negotiation of sales of Raine’s manuscript material (of which Irvine Library at the University of California was the primary buyer), the periodical Temenos, that Raine co-founded; and Jarret’s son-in law Robin Skelton, who was a poet and Professor of English Literature at the University of Victoria. In this postcard Raine writes about her recent trip to Dublin, the affects of having a dishwasher, and two collected works in progress: Collected Poems, and Collected Yeats Pages
Emptiness Formation in Polytropic Quantum Liquids
Creators: name: Yeh, Hsiu-Chung
name: Gangardt, Dimitri M.
name: Kamenev, Alex
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study large deviations in interacting quantum liquids with the polytropic equation of state $P(ρ)\sim ρ^γ$, where $ρ$ is density and $P$ is pressure. By solving hydrodynamic equations in imaginary time we evaluate the instanton action and calculate the emptiness formation probability (EFP), the probability that no particle resides in a macroscopic interval of a given size. Analytic solutions are found for a certain infinite sequence of rational polytropic indexes $γ$ and the result can be analytically continued to any value of $γ\ge 1$. Our findings agree with (and significantly expand on) previously known analytical and numerical results for EFP in quantum liquids. We also discuss interesting universal spacetime features of the instanton solution.
Chemistry of the anions from isoxazolin-5-ones ; Lactone synthesis via β-keto ester dianion alkylaton
Creators: name: Tischler, Samuel Arthur
Publisher: name: University of British Columbia
Year: 2010

description: In part I of this thesis an examination of the utility of isoxazolin-5-ones, e.g. 114, as B-keto ester dianion equivalents is presented. Generation of the anion of isoxazolin-5-one 114 and reaction with various electrophiles gave products 140 in fair to good yields. In particular, the cases where [See thesis for diagram] E=TMS, Br, C₆H₅S, and C₆H₅Se illustrate that the chemistry of the anion of isoxazolin-5-ones is complimentary to that of β-keto ester dianions. Several routes or potential routes to the preparation of unsaturated isoxazolin-5-ones are also discussed. One of these pathways involves the condensation of Wittig reagent 141 with aldehydes. The success of this plan was [See thesis for diagram] demonstrated by the preparation of unsaturated isoxazolin-5-ones 142, R= C₆H₅- and CH₃(CH₂)₄₋, R'=H. Finally, several strategies for the cleavage of isoxazolin-5-ones to β-keto esters were investigated. In part II of this dissertation, the synthesis of large ring lactones via an internal β-keto ester dianion alkylation is described (equation i). The β-keto ester halides 262 were [See thesis for diagram] prepared by the alcoholysis of acetyl Meldrum's acid 253 with 1,n-bromoalcohols. The study of the cyclization of β-keto ester [See thesis for diagram] halide 262g revealed that elimination as well as intramolecular alkylation often occurred (equation ii). The effect of [See thesis for diagram] temperature, leaving group, solvent, and counterion on the cyclization process was therefore examined. The results of this investigation have shown that cyclization was optimized when the halide 262 was added to three equivalents of lithium diisopropylamide in tetrahydrofuran (0° ￫ RT) . These conditions provided β-keto lactones when the chain length n ≥ 9, while elimination predominated when n ≤ 8. Finally, the preparation and intramolecular alcoholysis of the hydroxyacyl Meldrum's acid 295 was conducted and gave the fourteen-membered β-keto lactone 266e in fair yield. [See thesis for diagram]
Low-Jitter PLLs for Wireless Transceivers Slides and Transcript
Creators: Xiang Gao
Publisher: name: IEEE
Year: 2021

2018 ISSCC Tutorials
Abstract- PLLs and frequency synthesizers are key building blocks in wireless transceivers. With the trend of higher data-rate, higher carrier frequency and higher order of modulation, the jitter or phase noise requirement becomes more demanding given a limited power budget. This tutorial starts from the fundamentals of PLL jitter and power consumption. Various sources of PLL jitter and power will be identified and analyzed, and design methodologies to optimize them on both the block and system level will be presented. Finally, the working principle and recent advances of the low jitter sub-sampling PLL architecture will be discussed.
Bio- Xiang Gao received the B.E. degree from the Zhejiang University, Hangzhou, China, in 2004 and the M.Sc. (cum laude) and Ph.D. (cum laude) degrees from the University of Twente, Enschede, The Netherlands, in 2006 and 2010 respectively, both in electrical engineering. From 2010 to 2016, he was a principal engineer and design manager with Marvell Semiconductor, Santa Clara, CA, focusing on wireless transceiver circuits. He is now an Engineering Director with Credo Semiconductor, Milpitas, CA, working on high-speed SerDes. He has published 20 papers and holds 8 patents. He is an IEEE senior member.
ADC-Based Serial Links: Design and Analysis Slides and Transript
Creators: Sam Palermo
Publisher: name: IEEE
Year: 2021

2018 ISSCC Tutorials
Abstract - Growing serial I/O data rates, over both severe low-pass electrical and dispersive optical channels, necessitate increased equalization complexity and consideration of more bandwidth-efficient modulation schemes, such as four-level pulse-amplitude modulation (PAM4). Serial links which utilize ADC-based receiver front-ends offer a potential solution, as they enable more powerful and flexible DSP for
equalization and symbol detection and can easily support advanced modulation schemes. This tutorial will provide an overview of key concepts in ADC-based serial links that support operation over high-loss channels. Topics covered include high-speed ADC topologies, digital equalizers, benefits of partial analog equalization, modeling approaches, and calibration techniques.
Bio - Samuel Palermo received the B.S. and M.S. degrees in electrical engineering from Texas A&M University, College Station, TX in 1997 and 1999, respectively, and the Ph.D. degree in electrical engineering from Stanford University, Stanford, CA in 2007. From 1999 to 2000, he was with Texas Instruments, Dallas, TX, where he worked on the design of mixed-signal integrated circuits for high-speed serial data
communication. From 2006 to 2008, he was with Intel Corporation, Hillsboro, OR, where he worked on high-speed optical and electrical I/O architectures. In 2009, he joined the Electrical and Computer Engineering Department of Texas A&M University where he is currently an associate professor. His research interests include highspeed electrical and optical interconnect architectures, RF photonics, high performance clocking circuits, and integrated sensor systems. Dr. Palermo is a recipient of a 2013 NSF-CAREER award. He is a member of Eta Kappa Nu and IEEE. He has served as an associate editor for IEEE Transactions on
Circuits and System – II from 2011 to 2015 and has served on the IEEE CASS Board of Governors from 2011 to 2012. He is currently a distinguished lecturer for the IEEE Solid-State Circuits Society. He was a coauthor of the Jack Raper Award for Outstanding Technology-Directions Paper at the 2009 International Solid-State Circuits Conference, the Best Student Paper at the 2014 Midwest Symposium on Circuits and Systems, and the Best Student Paper at the 2016 Dallas Circuits and Systems Conference. He received the Texas A&M University Department of Electrical and Computer Engineering Outstanding Professor Award in 2014 and the Engineering Faculty Fellow Award in 2015.
Shock Waves in Eulerian Cosmological Simulations: Main Properties and Acceleration of Cosmic Rays
Creators: name: Vazza, F.
name: Brunetti, G.
name: Gheller, C.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We analyze the properties of Large Scale Shocks in a cosmological volume of size 103Mpc/h simulated with the public 1.0.1 release of the ENZO code. Different methods to identify and characterize shocks in post processing are discussed together with their uncertainties. Re-ionization affects the properties of shocks in simulations, and we propose a fitting procedure to model accurately the effect of re-ionization in non--radiative simulations, with a post--processing procedure. We investigate the properties of shocks by means of a procedure which uses jumps in the velocity variables across the cells in the simulations and this allows us to have a viable description of shocks also in relatively under-dense cosmic regions. We derive the distributions of the number of shocks and of the energy dissipated at these shocks as a function of their Mach number, and discuss the evolution of these distributions with cosmological time and across different cosmic environments (clusters, outskirts, filaments, voids). In line with some previous numerical studies (e.g. Ryu et al.2003, Pfrommer et al.2006) relatively weak shocks are found to dominate the process of energy dissipation in the simulated cosmic volume, although we find a larger ratio between weak and strong shocks with respect to previous studies. We estimate the rate of injection of CR at Large Scale Shocks by adopting injection efficiencies taken from previous numerical calculations. The flux dissipated in the form of CR within the whole simulated volume at the present epoch is about 20 per cent of the thermal energy dissipated at shocks; this fraction is smaller within galaxy clusters.
description: 25 pages, 29 figures. final version accepted by MNRAS. Figures and discussions upgraded
Testing GRBs as Standard Candles
Creators: name: Basilakos, S.
name: Perivolaropoulos, L.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Several correlations among Gamma Ray Burst (GRB) observables with available redshifts have been recently identified. Proper evaluation and calibration of these correlations may facilitate the use of GRBs as standard candles constraining the expansion history of the universe up to redshifts of $z>6$. Here we use the 69 GRB dataset recently compiled by Schaefer (astro-ph/0612285) and we test the calibration of five of the above correlations ($1:\epkk-E_γ$, $2:\epkk-L$, $3:\tlag-L$, $4:V-L$, $5:\trt-L$) with respect to two potential sources of systematics: Evolution with redshift and cosmological model used in the calibration. In examining the model dependence we assume flat \lcdm and vary $\omm$. Our approach avoids the circularity problem of previous studies since we do not fix $\omm$ to find the correlation parameters. Instead we simultaneously minimize $χ^2$ with respect to both the log-linear correlation parameters $a$, $b$ and the cosmological parameter $\omm$. We find no statistically significant evidence for redshift dependence of $a$ and $b$ in any of the correlation relations tested. We also find that one of the five correlation relations tested ($\epkk-E_γ$) has a significantly lower intrinsic dispersion compared to the other correlations. For this correlation relation, the maximum likelihood method favors the existence of a cosmological constant while the other four correlation favor a flat matter dominated universe $\omm \simeq 1$. Finally, a cross-correlation analysis between the GRBs and SnIa data for various values of $\omm$ has shown that the $E_{peak}-E_γ$ relation traces well the SnIa redshift regime. However, even the tightest correlation relation ($E_{peak}-E_γ$) provides much weaker constraints on $\omm$ than current SnIa data.
description: 10 pages, 3 figures. Improved statistical analysis. Minor changes in results. Accepted in MNRAS (to appear)
Particle production in p-p collisions and prediction for LHC energy
Creators: name: Kraus, I.
name: Cleymans, J.
name: Oeschler, H.
name: Redlich, K.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We analyze recent data on particle production yields obtained in p-p collisions at SPS and RHIC energies within the statistical model. We apply the model formulated in the canonical ensemble and focus on strange particle production. We introduce different methods to account for strangeness suppression effects and discuss their phenomenological verification. We show that at RHIC the midrapidity data on strange and multistrange particle multiplicity can be successfully described by the canonical statistical model with and without an extra suppression effects. On the other hand, SPS data integrated over the full phase-space require an additional strangeness suppression factor that is beyond the conventional canonical model. This factor is quantified by the strangeness saturation parameter or strangeness correlation volume. Extrapolating all relevant thermal parameters from SPS and RHIC to LHC energy we present predictions of the statistical model for particle yields in p-p collisions at sqrt(s) = 14TeV. We discuss the role and the influence of a strangeness correlation volume on particle production in p-p collisions at LHC.
description: 6 pages, 6 figures, 4 tables, submitted to Phys. Rev. C
Simulation of an Electrostatic Energy Harvester at Large Amplitude Narrow and Wide Band Vibrations
Creators: name: Tvedt, Lars Geir Whist
name: Blystad, Lars-Cyril Julin
name: Halvorsen, Einar
Publisher: name: arXiv
Year: 2008
Subjects: subject: Other Computer Science (cs.OH)
subject: FOS: Computer and information sciences

description: An electrostatic in-plane overlap varying energy harvester is modeled and simulated using a circuit simulator. Both linear and nonlinear models are investigated. The nonlinear model includes mechanical stoppers at the displacement extremes. Large amplitude excitation signals, both narrow and wide band, are used to emulate environmental vibrations. Nonlinear behavior is significant at large displacement due to the impact on mechanical stoppers. For a sinusoidal excitation the mechanical stoppers cause the output power to flatten and weakly decrease. For a wide band excitation, the output power first increases linearly with the power spectral density of the input signal, then grows slower than linearly.
description: Submitted on behalf of EDA Publishing Association (http://irevues.inist.fr/handle/2042/16838)
Matter sound waves in two-component Bose-Einstein condensates
Creators: name: Baizakov, B. B.
name: Kamchatnov, A. M.
name: Salerno, M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: The creation and propagation of sound waves in two-component Bose-Einstein condensates (BEC) are investigated and a new method of wave generation in binary BEC mixtures is proposed. The method is based on a fast change of the inter-species interaction constant and is illustrated for two experimental settings: a drop-like condensate immersed into a second large repulsive condensate, and a binary mixture of two homogeneous repulsive BEC's. A mathematical model based on the linearized coupled Gross-Pitaevskii equations is developed and explicit formulae for the space and time dependence of sound waves are provided. Comparison of the analytical and numerical results shows excellent agreement, confirming the validity of the proposed approach.
description: 16 pages, 9 figures
CNG-Theory Math Derivation Notebook
Creators: name: Price, Robert Anthony
Publisher: name: Zenodo
Year: 2025
Subjects: Chronogenesis
Theory of Everything
Quantized Time Feild
Unified Physics
Particle Mass Prediction
Gravitational Time Curvature
Entropy Geometry
Scalar feild Theory
Quantum Decoherence

description: Chronogenesis Field Derivation Notebook,

This notebook contains the full set of equations and step-by-step math used to build the Chronogenesis Theory. In this theory, time is treated as a real physical field that creates everything in the universe—mass, energy, gravity, and quantum effects. The math in this file shows how these ideas work using only time and its curvature, with no extra forces or adjustable constants. This document is the main math reference for the Chronogenesis project.
SUV RESURSLARIDAN FOYDALANGANLIK UCHUN SOLIQ
Creators: name: Musurmonova, E'zoza
Publisher: name: Zenodo
Year: 2025

description: Suv resurslariga soliq solish suvni barqaror boshqarish uchun muhim siyosat vositasidir. Ushbu maqola suvdan foydalanish uchun soliq solish tamoyillari, mexanizmlari va oqibatlarini o‘rganadi. Unda bunday soliqlar suvni samarali iste'mol qilishga qanday yordam berishi, davlat daromadlarini keltirishi va tabiatni muhofaza qilish bo‘yicha sa'y-harakatlarni rag‘batlantirishi o‘rganiladi. Har xil soliq modellari, jumladan, hajmli to‘lovlar, ifloslanishga asoslangan yig‘imlar va darajali narxlar ularning iqtisodiy va atrof-muhitga ta'siri bilan bog‘liq holda tahlil qilinadi. Bundan tashqari, maqolada suvga soliq solish bo‘yicha global misollar va ilg‘or tajribalar muhokama qilinadi. Shuningdek, siyosatni qo‘llash, arzon narxlardagi muammolar va iqtisodiy o‘sish va ekologik barqarorlik o‘rtasidagi muvozanat kabi muammolar ko‘rib chiqiladi.
Photochemical reaction on graphene surfaces controlled by substrate-surface modification with polar self-assembled monolayers
Creators: name: Nouchi, Ryo
name: Ikeda, Kei-ichiro
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The unique thinness of two-dimensional materials enables control over chemical phenomena at their surfaces by means of various gating techniques. For example, gating methods based on field-effect-transistor configurations have been achieved. Here, we report a molecular gating approach that employs a local electric field generated by a polar self-assembled monolayer formed on a supporting substrate. By performing Raman scattering spectroscopy analyses with a proper data correction procedure, we found that molecular gating is effective for controlling solid phase photochemical reactions of graphene with benzoyl peroxide. Molecular gating offers a simple method to control chemical reactions on the surfaces of two-dimensional materials because it requires neither the fabrication of a transistor structure nor the application of an external voltage.
description: Submitted version
Optimization and AMS Modeling for Design of an Electrostatic Vibration Energy Harvester's Conditioning Circuit with an Auto-Adaptive Process to the External Vibration Changes
Creators: name: Galayko, Dimitri
name: Basset, Philippe
name: Paracha, Ayyaz Mahmood
Publisher: name: arXiv
Year: 2008
Subjects: subject: Other Computer Science (cs.OH)
subject: FOS: Computer and information sciences

description: Electrostatic transducers for vibration energy scavenging have been an object to numerous studies, but are still facing major issues relating to their conditioning circuit. One of the most popular ones uses a charge pump and a flyback circuit based on a Buck DC-DC converter (Fig. 1). A commutation between the energy accumulation in the charge pump and the recharge of the buffer capacitor Cres is assured by a switch which is the major bottleneck in the energy harvester circuit. The commutation timing of the switch determines the efficiency of the energy harvesting. In previous papers [1] the switch commutates periodically with some fixed duty ratio. However, this solution is not appropriate when the environment parameters, e.g. the vibration frequency, change. We found that the switching should be ordered by the internal state of the circuit, an not by some fixed timing scenario. We presents how to find the optimal operation mode of the harvester. To validate the study, the system was modeled using a mixed VHDL-AMS - ELDO model.
description: Submitted on behalf of EDA Publishing Association (http://irevues.inist.fr/handle/2042/16838)
Basics of Adaptive and Resilient Circuits Slides and Transcript
Creators: Keith Bowman
Publisher: name: IEEE
Year: 2021

2018 ISSCC Tutorials
Abstract - Dynamic device and circuit parameter variations degrade processor performance, energy efficiency, yield, and reliability across all market segments, ranging from small embedded cores in an IoT to large multicore servers. This tutorial introduces the primary variations during a processor’s operational lifetime, including transient voltage droops, temperature changes, and radiation-induced soft errors, as well as persistent transistor and interconnect aging. This presentation then describes the negative impact of these variations on timing and data retention in logic and embedded memory across a wide range of voltages and clock frequencies. To mitigate these adverse effects from dynamic variations, this tutorial presents adaptive and resilient circuits, while highlighting the key design trade-offs and testing implications for product deployment.
Bio - Keith Bowman is a Principal Engineer and Manager in the Processor Research Team at Qualcomm Technologies, Inc. in Raleigh, NC. He pioneered the invention, design, and test of Qualcomm’s first commercially successful circuit for mitigating the adverse effects of supply voltage droops. He received the Ph.D. degree from the Georgia Institute of Technology and worked at Intel for 12 years. He has published over 70 technical conference and journal papers and presented over 30 tutorials on variation-tolerant circuit designs. He currently serves on the ISSCC technical program committee.
Fermionic vacuum densities in higher-dimensional de Sitter spacetime
Creators: name: de Mello, E. R. Bezerra
name: Saharian, A. A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Fermionic condensate and the vacuum expectation values of the energy-momentum tensor are investigated for twisted and untwisted massive spinor fields in higher-dimensional de Sitter spacetime with toroidally compactified spatial dimensions. The expectation values are presented in the form of the sum of corresponding quantities in the uncompactified de Sitter spacetime and the parts induced by non-trivial topology. The latter are finite and the renormalization is needed for the first parts only. Closed formulae are derived for the renormalized fermionic vacuum densities in uncompactified odd-dimensional de Sitter spacetimes. It is shown that, unlike to the case of 4-dimensional spacetime, for large values of the mass, these densities are suppressed exponentially. Asymptotic behavior of the topological parts in the expectation values is investigated in the early and late stages of the cosmological expansion. When the comoving lengths of compactified dimensions are much smaller than the de Sitter curvature radius, to the leading order the topological parts coincide with the corresponding quantities for a massless fermionic field and are conformally related to the corresponding flat spacetime results. In this limit the topological parts dominate the uncompactified de Sitter part and the back-reaction effects should be taken into account. In the opposite limit, for a massive field the asymptotic behavior of the topological parts is damping oscillatory.
description: 19 pages, 4 figures, cosmological applications are added
title: Oxidation Products of Tryptophan and Proline in Adipokinetic Hormones—Artifacts or Post-Translational Modifications?
Creators: name: König, Simone
name: Marco, Heather G.
name: Gäde, Gerd
Publisher: name: University of Muenster, Institutional Repository MIAMI
Year: 2023
Subjects: subject: 610 Medicine and health

description: Background: Adipokinetic hormones (AKHs) regulate important physiological processes in insects. AKHs are short peptides with blocked termini and Trp in position 8. Often, proline occupies position 6. Few post-translational modifications have been found, including hydroxyproline ([Hyp6]) and kynurenine. Our recent data suggest that the Hyp- and Kyn-containing AKHs occur more often than originally thought and we here investigate if they are natural or artifactual. Methods: From crude extracts of the corpora cardiaca (CC) of various insect species, AKHs were analyzed using liquid chromatography coupled to high-resolution mass spectrometry (LC-MS). Synthetic [Hyp6]-AKHs were tested in an in vivo metabolic assay. Freshly dissected Periplaneta americana and Blaberus atropos CCs (with precautions taken against oxidation) were analyzed. B. atropos CC were placed into a depolarizing saline and the released AKHs were measured. Results: Hyp was detected in several decapeptides from cockroaches. The modified form accompanied the AKH at concentrations below 7%. The [Hyp6]-AKHs of B. atropos were present in fresh CC preparations and were shown to be releasable from the CC ex vivo. Synthetic [Hyp6]-containing peptides tested positively in a hypertrehalosemic bioassay. Hydroxyprolination was also detected for Manto-CC from the termite Kalotermes flavicollis and for Tetsu-AKH of the grasshopper, Tetrix subulata. Oxidized Trp-containing forms of Nicve-AKH were found in species of the burying beetle genus Nicrophorus. Conclusions: Trp oxidation is known to occur easily during sample handling and is likely the reason for the present findings. For hydroxyprolination, however, the experimental evidence suggests endogenous processes.
description: "Finanziert durch den Open-Access-Publikationsfonds der Universität Münster."
สถานภาพผลงานทางวิชาการด้านสุนทรียศาสตร์ในสถาปัตยกรรมและศิลปะเกี่ยวเนื่องในประเทศไทย_เส้นทาง สาระ สู่การวิจัย
Creators: name: ผู้ช่วยศาสตราจารย์ ดร.หม่อมหลวงปิยลดา ทวีปรังษีพร
Publisher: name: โรงพิมพ์แห่งจุฬาลงกรณ์มหาวิทยาลัย
Year: 2012
Subjects: สุนทรียศาสตร์,สถานภาพผลงานทางวิชาการ,สุนทรียศาสตร์ในสถาปัตยกรรม,ประเทศไทย,การปริทัศน์เชิงวิพากษ์

description: 61, Academic Journal of Architecture
Studies on bacterial capsular polysaccharides and on a plant gum
Creators: name: Di Fabio, Jose Luis
Publisher: name: University of British Columbia
Year: 2010

description: The structure of the capsular polysaccharides from Klebsiella serotype K60 and K26 have been determined using the techniques of methylation.periodate oxidation,partial hydrolysis, and β-elimination. ¹H- and ¹³C-n.m.r. spectroscopy was used to establish the nature of the anomeric linkages in both polysaccharides and also in the oligosaccharides obtained by the different degradative techniques used. Specific hydrolases obtained from bacteriophages were utilized to degrade two Klebsiella polysaccharides. Larger quantities of oligosaccharide repeating units can be generated in this manner. Two bacteriophages, Ø60 and Ø46,the first one with β-glucosidase activity and the other with β-galactosidase activity, were used to degrade the corresponding polysaccharides according to a new, simplified procedure. The purified gum exudate from Chorisia speciosa (palo borracho) was studied. The results from methylation analysis, β-elimination and partial hydrolysis made possible a tentative assignment for an "average structure" of the gum polysaccharide.
Design of parametrically forced patterns and quasipatterns
Creators: name: Rucklidge, A. M.
name: Silber, M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: The Faraday wave experiment is a classic example of a system driven by parametric forcing, and it produces a wide range of complex patterns, including superlattice patterns and quasipatterns. Nonlinear three-wave interactions between driven and weakly damped modes play a key role in determining which patterns are favoured. We use this idea to design single and multi-frequency forcing functions that produce examples of superlattice patterns and quasipatterns in a new model PDE with parametric forcing. We make quantitative comparisons between the predicted patterns and the solutions of the PDE. Unexpectedly, the agreement is good only for parameter values very close to onset. The reason that the range of validity is limited is that the theory requires strong damping of all modes apart from the driven pattern-forming modes. This is in conflict with the requirement for weak damping if three-wave coupling is to influence pattern selection effectively. We distinguish the two different ways that three-wave interactions can be used to stabilise quasipatterns, and present examples of 12-, 14- and 20-fold approximate quasipatterns. We identify which computational domains provide the most accurate approximations to 12-fold quasipatterns, and systematically investigate the Fourier spectra of the most accurate approximations.
description: 43 pages, 21 figures, 8 page appendix. An animated gif movie can be found on http://www.maths.leeds.ac.uk/~alastair/papers/RS_qp_siads_abs.html as can PostScript/pdf versions of the paper, with full resolution figures (or if there is any difficulty in obtaining files from arXiv)
SOCIO-ECONOMIC IMPACT OF THE FAILED AND ABANDONED BRASS LNG CONSTRUCTION PROJECT ON BRASS ISLAND, BAYELSA STATE, NIGERIA
Creators: name: Akpan, Samuel Okon
name: Ezekiel, Nnadi
Publisher: name: SADI JOURNALS
Year: 2025
Subjects: Abandoned, Brass, Construction, Project, Socio-Economic

description: The topic of this study is the Socio-Economic Impact of the Failed and Abandoned Brass LNG Construction Project on Brass Island and the Host Communities. The purpose of the study was to determine the factors that were responsible for the failure and abandonment of the Brass LNG Project and the socio-economic impact of the failure and abandonment of the project on the host communities. The study employed the quantitative research method, using a structured questionnaire as a data collection instrument. A population of 57 staff (both Junior and Senior) spread across the Brass LNG Project Team, NNPC in Brass Island and Abuja. A sample size of 50 was arrived at using Yamane’s mode of sampling size technique. 50 questionnaires were administered, of which 50 were retrieved, translating to a 100% response rate. The data collected was analyzed using the t-test and chi-square statistical tools. Hypotheses I and II were tested, and Decisions were taken. The Study Objectives were achieved. The findings of the study reveal the causes that led to the failure and abandonment of the Brass LNG Project. The study also reveals there were significant socio-economic impacts on the host community as a result of the failure and abandonment of the Brass LNG project. Based on the study findings, the researcher gave some useful and practical recommendations to mitigate future Abandonment of Oil and Gas Projects in Nigeria. The outcome of the study has practical benefits to Project Managers, Project Engineers, Oil and Gas Stakeholders, the Academic Society, Industrial Professionals, Policy Makers, and Organizations saddled with the responsibility of Oil and Gas development in Nigeria
The Weibull - log Weibull Transition of the Inter-occurrence time statistics in the two-dimensional Burridge-Knopoff Earthquake model
Creators: name: Hasumi, Tomohiro
name: Akimoto, Takuma
name: Aizawa, Yoji
Publisher: name: arXiv
Year: 2008
Subjects: subject: Geophysics (physics.geo-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: In analyzing synthetic earthquake catalogs created by a two-dimensional Burridge-Knopoff model, we have found that a probability distribution of the interoccurrence times, the time intervals between successive events, can be described clearly by the superposition of the Weibull distribution and the log-Weibull distribution. In addition, the interoccurrence time statistics depend on frictional properties and stiffness of a fault and exhibit the Weibull - log Weibull transition, which states that the distribution function changes from the log-Weibull regime to the Weibull regime when the threshold of magnitude is increased. We reinforce a new insight into this model; the model can be recognized as a mechanical model providing a framework of the Weibull - log Weibull transition.
description: 11 pages, 7 figures
แนวทางการบริหารโครงการปรับปรุงและก่อสร้างสถานเอกอัครราชทูตไทยและสถานกงสุลใหญ่ไทย
Creators: name: กุลธิดา แสงนิล,รองศาสตราจารย์ นาวาโท ไตรวัฒน์ วิรยศิริ
Publisher: name: โรงพิมพ์แห่งจุฬาลงกรณ์มหาวิทยาลัย
Year: 2012
Subjects: การบริหารโครงการสถาปัตยกรรม,โครงการปรับปรุง,โครงการก่อสร้าง,สถานเอกอัครราชทูตไทย,สถานกงสุลใหญ่ไทย

description: 61, Academic Journal of Architecture
Noctuidae
Creators: name: Pohl, Greg
name: Anweiler, Gary
name: Schmidt, Christian
name: Kondla, Norbert
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Noctuidae

description: 63. Noctuidae As currently defined, the Noctuidae include only those groups with a trifid hindwing venation (Lafontaine and Fibiger 2006), to the exclusion of the Erebidae, which were formerly included here. Most Noctuoidea species of economic concern fall in this group, such as the cutworms, armyworms and earworms. Th ere are about 8,000 named species of Noctuidae globally, reaching their greatest diversity in temperate regions, particluarly grasslands and steppe habitats. Approximately 2,500 noctuid species occur in North America; 643 are reported herein from AB. 63.1. Plusiinae A group of primarily medium-sized (30–50 mm wingspan) moths with many colorful and attractive species. Many have metallic marks on the forewings, and some are diurnal flower visitors. Th e subfamily is defined by the quadrifid hindwing venation and lashed eyes. Th e larvae of most species are semi-loopers with a reduced number of prolegs. Th ey feed on the foliage of a wide variety of plants, and several (e.g., Trichoplusia spp.) are important agricultural pests. There are approximately 400 species of Plusiinae in the world, centered in temperate habitats in the northern hemisphere. Approximately 80 species in about 24 genera occur in North America; 41 species are known from AB. Th e North American species have been revised by McDunnough (1944b) and more recently by Lafontaine and Poole (1991).
description: Published as part of Pohl, Greg, Anweiler, Gary, Schmidt, Christian & Kondla, Norbert, 2010, An annotated list of the Lepidoptera of Alberta, Canada, pp. 1-549 in ZooKeys 38 (38) on pages 253-254, DOI: 10.3897/zookeys.38.383, http://zenodo.org/record/576629
description: {"references": ["Lafontaine JD, Fibiger M (2006) Revised higher classification of the Noctuoidea (Lepidoptera). Th e Canadian Entomologist 138: 610 - 635.", "McDunnough JH (1944 b) Revision of the North American genera and species of the phalaenid subfamily Plusiinae. Memoirs of the Southern California Academy of Sciences 2: 175 - 232.", "Lafontaine JD, Poole RW (1991) Noctuoidea: Noctuidae: Plusiinae. Fasc. 25.1. In: Dominick RB, Ferguson DC, Franclemont JG, Hodges RW, Munroe EG (Eds) Th e moths of America north of Mexico. Wedge Entomological Research Foundation, Washington, D. C., 182 pp."]}