15 Hits in 10.7 sec

A 2.5-V 57-MHz 15-Tap SC Bandpass Interpolating Filter With 320-MS/s Output for DDFS System in 0.35->tex<$mu hboxm$>/tex<CMOS

S.-P. U, R.P. Martins, J.E. Franca
2004 IEEE Journal of Solid-State Circuits  
with fast opamps, and also ultra-low timing-skew multiple phase generation in order to achieve high-performance operation at high frequency.  ...  The prototype ICs present a signal-to-noise-and-distortion ratio (SNDR) of 61 dB, with a dynamic range of 69 dB, for 1% THD, and 61 dB, for 1% IM3.  ...  ., for the technical support, and the reviewers for their useful comments and suggestions.  ... 
doi:10.1109/jssc.2003.820855 fatcat:shzm2tmlgvc2tjaalgn2jzd4iq

A 2.2 µW Cognitive Always-On Wake-Up Circuit for Event-Driven Duty-Cycling of IoT Sensor Nodes

Giovanni Rovere, Schekeb Fateh, Luca Benini
2018 IEEE Journal on Emerging and Selected Topics in Circuits and Systems  
It is driven by the LC-ADC activity and trained to minimize classification errors due to falsely detected events.  ...  We report an always-on event-driven asynchronous wake-up circuit with trainable pattern recognition capabilities to duty-cycle power-constrained internet-of-things (IoT) sensor nodes.  ...  Kleier; as well as ACP AG, Zollikon, CH for chip fabrication and the ETH Microelectronic Design Center for EDA support.  ... 
doi:10.1109/jetcas.2018.2828505 fatcat:7tzehbythfahpjueq72akhcuqq

A Deep-Subthreshold Variation-Aware 0.2-V Open-Loop VCO-Based ADC

Viet Nguyen, Filippo Schembari, Robert Bogdan Staszewski
2021 IEEE Journal of Solid-State Circuits  
This effort encapsulates the design and implementation of an ultra-low-voltage (ULV) 0.2-V open-loop VCO-based analog-to-digital converter (ADC).  ...  , variation-aware, voltage-controlled oscillator (VCO)-based ADC.  ...  and Erik Staszewski and Sunisa Staszewski for measurement and lab assistance.  ... 
doi:10.1109/jssc.2021.3114006 fatcat:p3f2esux3va35foamn2yexq52u

A Multi-Channel Low-Power System-on-Chip for in Vivo Recording and Wireless Transmission of Neural Spikes

Andrea Bonfanti, Maria Ceravolo, Guido Zambra, Riccardo Gusmeroli, Gytis Baranauskas, Gian Nicola Angotzi, Alessandro Vato, Emma Maggiolini, Marianna Semprini, Alessandro Sottocornola Spinelli, Andrea Leonardo Lacaita
2012 Journal of Low Power Electronics and Applications  
Powered by 2 AAA batteries, the system can continuously work for more than 100 hours allowing for long-lasting neural spike recordings.  ...  Fadiga (IIT, Genova) for useful discussions and A. Oleynjk (Universita' di Ferrara) for providing us the clustering software.  ...  The high-pass cut-off frequency of the front-end amplifiers was set to about 300 Hz to properly reject the low-frequency signals and the power-line noise, enabling correct spike detection.  ... 
doi:10.3390/jlpea2040211 fatcat:lqzi3s35hvfpzhfhwxxw6k3vby

Evolvable Smartphone-Based Point-Of-Care Systems For In-Vitro Diagnostics

François Patou
2016 Zenodo  
Our investigation revolves around the silicon-nanowire biological field effect transistor, a promising biosensing technology for the detection of biological analytes at ultra low concentrations.  ...  We discuss extensively the sensitivity and instrumentation requirements set by the technology before we present the design and implementation of an evolvable smartphone-based platform capable of interfacing  ...  The F28377D presents a high reference potential V high = 3.3 V and a low reference V low = 0 V.  ... 
doi:10.5281/zenodo.204579 fatcat:okesojvyjjghpntsmb676lvsh4

Penilaian Kualiti Laporan EIA Dalam Aspek Kajian Hakisan Tanah [article]

Abdul Mahmud
2020 Figshare  
Test and retest method is conducted to ensure the reliability of review data meet the standard. The overall quality is calculated by aggregating the each value quality of review areas.  ...  Study shows that, there are weaknesses among the developer in terms of implementing erosion anda sedimentation control measures.  ...  Methodology: The methodology used for this study consist of four stages; optimal sequence synthesis, alternative sequence synthesis, energy comparison, and controllability comparison.  ... 
doi:10.6084/m9.figshare.12095736 fatcat:fzsit3wyqjc3fni4no4zzopz5e

CMOS Hyperbolic Sine ELIN filters for low/audio frequency biomedical applications

Evdokia Kardoulaki, Emm Drakakis
Its dual scope is to: consolidate the theory behind the synthesis and design of high order Sinh continuous–time filters and more importantly to confirm their micro-power consumption and 100+ dB of DR through  ...  They can handle large-signals in a low power environment under half the capacitor area required by the more popular ELIN Log-domain filters.  ...  Serdijn, "Ultra Low-Power Biomedical System Designs," in Ultra Low-Power Biomedical Signal Processing: Springer, 2009, pp. 131-172.quote equation (3.37) with an extra factor of ¼ at the RHS.  ... 
doi:10.25560/9612 fatcat:4swhjyeuu5f4lorzt35snp5kzu

Cell Micro-patterning [chapter]

2016 Encyclopedia of Nanotechnology  
(>20-50 dB for frequencies beyond 10 GHz), very high linearity (>66 dBm third-order intercept point), and nearzero power consumption ($tens of nJ per  ...  radio frequency (RF) signal paths in microwave and millimeter-wave circuits through mechanical motion and contact.  ...  For examples in animal cells, pH controls the activity of key enzymes, protein synthesis, DNA and RNA synthesis, cell cycle, and ion conductance by membranes.  ... 
doi:10.1007/978-94-017-9780-1_100152 fatcat:msyahfwivvcxhol3nltwdi546e

Chemical Vapor Deposition (CVD) [chapter]

Yoke Khin Yap, Dongyan Zhang
2016 Encyclopedia of Nanotechnology  
(>20-50 dB for frequencies beyond 10 GHz), very high linearity (>66 dBm third-order intercept point), and nearzero power consumption ($tens of nJ per  ...  radio frequency (RF) signal paths in microwave and millimeter-wave circuits through mechanical motion and contact.  ...  For examples in animal cells, pH controls the activity of key enzymes, protein synthesis, DNA and RNA synthesis, cell cycle, and ion conductance by membranes.  ... 
doi:10.1007/978-94-017-9780-1_345 fatcat:hqqkocm2sne5jp32r7akdjceyi

Index [chapter]

2016 Encyclopedia of Cell Biology  
convoluted membranes and membrane webs generation by 2:820-822 formation of double-membraned vesicles by 2:821F corpse clearance, SRs in 3:733 correct undamaged nucleotide insertion 1:447 corrector  ...  controlling 4:104 angiogenic growth factors 4:104 capillary growth factor ligand, receptor, and co-receptor domain structures 4:105F FGF-VEGF-Ang-PDGF networking 4:108-109 vascular remodeling factors  ...  nerve growth factor (NGF) 2:211, 3:51-52, 3:235, 4 :223-224 inducing neurite outgrowth through G protein 3:52 association between G proteins and tubulin 3:52-53 3:479-480 nuclear envelope transmembrane  ... 
doi:10.1016/b978-0-12-394447-4.09001-5 fatcat:p5gwgrhzjjgyziy6x6cxvcfo6u

Power Electronic Control of a Partial Core Transformer [article]

Vijay Bendre, University Of Canterbury
Partial core transformers have a low magnetising reactance and hence draw a high magnetising current.  ...  This characteristic makes them a perfect fit in applications where the load is capacitive in nature, such as a.c. power frequency high voltage testing of generator insulation and cable testing etc.  ...  In this case, the zero of the triangular wave coincides with zero of the reference sinusoid.  ... 
doi:10.26021/1310 fatcat:sehfkxvpmbca5pzhtm353hppkq

CAS - CERN Accelerator School and CLRC Daresbury Laboratory : Specialised CAS Course on Power Converters [article]

Daniel Brandt
The important problem of the high precision required for power converters in particle accelerators was exposed by lectures on regulation theory, high-precision measurements, ADC-DAC and general controls  ...  These proceedings contain the lectures given at the eighteenth specialized course organized by the CERN Accelerator School (CAS), the topic being 'Power Converters for Particle Accelerators'.  ...  The author would like to express his deep gratitude and admiration to Professor Foch who initiated the research about the systematic synthesis of power converter topologies.  ... 
doi:10.5170/cern-2006-010 fatcat:pewuq3yypfb5zo3ujyt3tdrf6u

An Optoelectronic Stimulator for Retinal Prosthesis

Yan Huang, Emm Drakakis, Christofer Toumazou
Meanwhile, with the aim of developing a portable retinal prosthesis, a system on chip (SoC) architecture was proposed and a wide tuning range sinusoidal voltage-controlled oscillator (VCO) which is the  ...  Therefore, the system can be completely external and not does have the power and degradation problems of implanted devices.  ...  Acknowledgements My deepest gratitude goes first and foremost to Dr. Emmanuel. M. Drakakis, my supervisor, for his sense of responsibility, enlightening guidance, and endless patience.  ... 
doi:10.25560/4379 fatcat:bfuzmabrjjdb3ndtfmf6v5j5ya

Dynamic Digital Optical Tomography for Cancer Imaging and Therapy Monitoring

Molly Flexman
This dissertation presents the design and validation of an instrument for rapid optical imaging using digital detection techniques.  ...  These studies show that diffuse optical tomography is a valuable imaging modality that can play an important role in cancer detection and treatment.  ...  Andreas Hielscher has been an invaluable mentor and advisor throughout my  ... 
doi:10.7916/d8jd540p fatcat:o6whqqf36vgttldchxuvnmjfm4

Low temperature spectroscopy of photosystem II in higher plants [article]

Lesley Debono, University, The Australian National, University, The Australian National
S Styl ing acknowledges support from the Swedish Research Council and the Swedish Energy Agency. E. Krausz and R Pace acknowledge support from the Australian Research Council.  ...  This spectrum was labelled the ' transient high-light differencespectrum' (THDS).  ...  Firstly, the MCD and CCD were both designed to be very stable with specific design features to ensure stability such as ultra-stable lamp power-supplies and the use of a chopper in the MCD to minimise  ... 
doi:10.25911/5d4ffba337388 fatcat:oqtyb5cymnfrhcqlqc3m2frgxa