gebhart/patrepeval huggingface dataset:
Antenna and input stages of a 470-710 mhz silicon tv tuner for portable applications (2005)

This paper describes the antenna and input stages of a silicon TV-tuner intended for portable devices such as cell phones, laptops and PDAs. The tuner meets the requirements of the mobile and portable DVB-T radio access interface specifications MBRAI. The first stages of the tuner comprise a broadband antenna, a matching and filtering circuit, and LNA. The frequency band of operation is 470-710MHz (DVB-H). The matching and filtering circuitry comprises a strong GSM trap that attenuates the GSM frequencies by more than 40dB. The overall power gain is 20 /spl plusmn/ 3dB in the band, and the NF of the total chain is less than 4dB. The power consumption is 21mW from 2.5V supply. The LNA is fabricated in a 0.25/spl mu/m, 35GHz f/sub T/ BiCMOS technology based on D. Szmyd et al. (2001).
Impact of the backside potential on the current collapse of GaN SBDs and HEMTs (2015)

This paper shows both experimentally and in simulation that the amount of current collapse for GaN SBDs and HEMTs strongly depends on the node to which the backside is connected, i.e., how the device is packaged, and the underlying physics is explained. It is shown that the difference in current collapse is not due to a difference in charge trapping. The reduction in current collapse for a backside-to-anode/source connection is due to a compensating switching charge that is not present when the backside is connected to the cathode/drain, for which stronger current collapse is observed.
A prototype of injector to control and to detect the release of magnetic beads within the constraints of multibifurcation magnetic resonance navigation procedures (2016)

The prototype of injector shows performance above the requirements inherent to magnetic resonance navigation. This system is a step toward in vivo multibifurcation MRN. Magn Reson Med 77:444-452, 2017. © 2016 Wiley Periodicals, Inc.
Les convertisseurs électromécaniques d'énergie : des systèmes mécatroniques (2003)

International audience
A Method to Determine the Located Region of Lateral Trap Position by Analysis of Three-Level Random Telegraph Signals in n-MOSFETs (2015)

This paper introduces a method to determine the located region of trap position by the analysis of three-level random telegraph signal (RTS) in partially-depleted silicon-on-insulator n-channel metal-oxide-semiconductor field-effect-transistors. For the cases of two traps, the average time at the 2nd level (〈τ2〉) is composed of average emission time of one trap and average capture time of the other. Comparison and analysis of 〈τ2〉 curves varying with gate voltage in RTS measurements with and without interchanged source/drain can clarify the located regions of the two traps. Moreover, the simplified equations are also considered and used to confirm the trap positions.
A novel approach to design of cis-acting DNA structural element for regulation of gene expression in vivo (1991)

Taking advantage of the degeneracy of the genetic code we have developed a novel approach to introduce, within a gene, DNA sequences capable of adopting unusual structures and to investigate the role of such sequences in regulation of gene expression in vivo. We used a computer program that generates alternative codon sequences for the same amino-acid sequence to convert a stretch of nucleotides into an inverted-repeat sequence with the potential to adopt cruciform structure. This approach was used to replace a 51-base-pair EcoRI-HindIII segment in the N-terminal region of the beta-galactosidase gene in plasmid pUC19 with a 51-bp synthetic oligonucleotide sequence with the potential to adopt a cruciform structure with 18 bp in the stem region. In selecting the 51-bp sequence, care was taken to include those codons that are preferred in E. coli. E. coli DH5-alpha cells harbouring the plasmid containing the redesigned sequence showed drastic reduction in expression of the beta-galactosidase gene compared to cells harbouring the plasmid with the native sequence. This approach demonstrates the possibility of introducing DNA secondary-structure elements to alter regulation of gene expression in vivo.
Arrays for chronic functional microstimulation of the lumbosacral spinal cord (2004)

Our objective is to develop neural prostheses based on an array of microelectrodes implanted into the sacral spinal cord, that will allow persons with spinal cord injuries to regain control of their bladder and bowels. For our chronic cat model, we have developed two microelectrode arrays, one type containing nine discrete activated iridium microelectrodes and the second utilizing silicon substrate probes with multiple electrode sites on each probe. Both types can elicit an increase in the pressure within the urinary bladder of more than 40-mm Hg and/or relaxation of the urethral sphincter. A stimulus of 100 microA and 400 micros/ph at 20 Hz (charge-balanced pulses) was required to induce a large increase in bladder pressure or relaxation of the urethral sphincter. We found that 24 h of continuous stimulation with these parameters induced tissue injury (disrupted neuropil, infiltration of inflammatory cells, and loss of neurons close to the tip sites). However, a neural prosthesis that is intended to restore bladder control after spinal cord injury would not operate continuously. Thus, when this stimulus was applied for 24 h, at a 10% duty cycle (1 min of stimulation, then 9 min without stimulation) only minimal histologic changes were observed.
Environment-Assisted Tunneling as an Origin of the Dynes Density of States (2010)

We show that the effect of a high-temperature environment in current transport through a normal metal-insulator-superconductor tunnel junction can be described by an effective density of states in the superconductor. In the limit of a resistive low-Ohmic environment, this density of states reduces into the well-known Dynes form. Our theoretical result is supported by experiments in engineered environments. We apply our findings to improve the performance of a single-electron turnstile, a potential candidate for a metrological current source.
Highly Efficient Polymer-Based Optoelectronic Devices Using PEDOT:PSS and a GO Composite Layer as a Hole Transport Layer (2014)

We demonstrate highly efficient polymer light-emitting diodes (PLEDs), as well as polymer solar cells (PSCs), using a solution-processable poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS):graphene oxide (GO) (PEDOT:GO) composite layer as hole transport layers (HTLs). The PEDOT:GO composite HTL layer shows enhanced charge carrier transport due to improved conductivity by benzoid-quinoid transitions with a well-matched work function between GO (4.89 eV) and PEDOT:PSS (4.95 eV). Moreover, it reduces remarkably exciton quenching and suppresses recombinations that bring higher charge extraction in PSCs and increases the recombinations of holes and electrons within the active layer by the blocking behavior of the electrons from a fluorescent semiconductor due to the existence of GO with large bandgap (∼3.6 eV) in the PEDOT:GO composite layer, therefore leading to an enhancement of device efficiency in PLEDs and PSCs. The optimized PLEDs and PSCs with a PEDOT:GO composite HTL layer shows the maximum luminous efficiency of 21.74 cd/A (at 6.4 V) for PLEDs, as well as the power conversion efficiency of 8.21% for PSCs, which were improved by ∼220 and 12%, respectively, compared to reference PLEDs and PSCs with a PEDOT:PSS layer.
Caratterizzazione metrologica di un sistema distribuito di misura per localizzare guasti in reti di distribuzione (2008)

In precedenti lavori gli autori hanno presentato un sistema di misura distribuito per rilevare disturbi transitori e un metodo di localizzazione guasti basato su misure dell’istante di inizio del disturbo effettuate in punti strategici della rete di distribuzione. In seguito si è indagato sulle prestazioni della procedura sviluppata, prima simulando guasti e manovre su una rete Std. IEEE, poi introducendo condizioni di funzionamento reali del sistema elettrico e variando sistematicamente le condizioni di guasto. Per completare l’analisi del metodo proposto si deve valutare l’incertezza con cui viene stimata la posizione del punto di guasto. A tale scopo, ogni blocco della catena di misura corrispondente a un canale della stazione remota è stato caratterizzato metrologicamente e si sono valutati gli effetti delle sorgenti di incertezza sull’istante temporale registrato. L’incertezza sull’istante di tempo viene infine propagata attraverso l’algoritmo di localizzazione per ottenere l’incertezza combinata sulla posizione del punto di guasto.
ChemInform Abstract: Conformational Considerations in the Design of a Glucagon Analogue with Increased Receptor Binding and Adenylate Cyclase Potencies. (1986)

Abstract The C‐terminal region of glucagon which is imponant for binding of the hormone to its plasma membrane receptor has been proven to have an α‐helical structure.
Effect of Geographical Distribution of Failed Links on Survivability Improvement in Translucent Elastic Optical Network Employing Shared Protection with Fallback (2019)

We show that the geographical distribution of simultaneously failed links influences survivability improvement only slightly when employing shared protection with fallback (SP-FB) in translucent elastic optical networks. Results show that SP-FB is useful during disasters.
Increased Oil Recovery by Permeability Modification in High Permeability Contrast Slim Tubes (2014)

Abstract Biofilm and biopolymers produced from microbes have been shown to reduce the permeability of high perm streaks which can result in improved sweep efficiency. The rate of permeability modification is very reproducible but can vary depending on the specific treatments used. Our approach has been to inoculate the reservoir with a microbe that under the optimal nutrient conditions will express a biopolymer as a film, reduce the size of pore throats and reduce the apparent permeability. The microbe and the nutrients are tailored to the conditions of each reservoir thus giving MEOR the greatest chance for success. In this paper we describe the use of a high permeability contrast composite slim tube to demonstrate increased oil recovery using microbes that generate biofilms to reduce the permeability contrast and thus improve sweep efficiency. In this setup, three hydraulically constrained slim tubes – working as very long sand packs – were constructed from different sources of sand with a range of particle size distributions. Absolute and differential pressure transducers were used to monitor the pressure drop across individual slim tubes and across the composite configuration of the three slim tubes. Oil traps were located at the exit of each slim tube to measure the oil production from each tube. The permeabilities of the slim tubes against a high salt injection brine (TDS ∼ 85,000 ppm) were measured to be 45, 4.5 and 2.6 Darcy. This presented a challenging system with a slim tube at a very high permeability that would need to be reduced by the MEOR treatment. Oil (viscosity of ∼58 cp) was pumped independently into each slim tube to assure that each slim tube was at residual water saturation. The slim tubes were allowed to age before the start of the test. Once working in composite mode the flows of the injected brine and MEOR treatments were dictated only by the hydraulics of the composite slim tube. The produced fluids from all three slim tubes were sent to a single back pressure regulator. In the composite mode, oil was readily produced only from the high permeability slim tube during the initial (non-MEOR) flooding sequence. A salt tolerant microbe present in the target oil reservoir capable of producing biofilms and altering the permeability was inoculated into the composite slim tube. The inoculated microbes were batch fed periodically using a protocol that was scaled down from one that would be used in a field test. An increase in the pressure drop and corresponding increase in oil production from the lower permeable slim tubes was observed as a result of the treatment. This resulted in a dramatic increase in the recovery factor from the composite slim tube. This work is a continuation of tests described in earlier papers (SPE129657, SPE146483 and SPE159128 – references 4, 5 and 6).
Model-based Reconstruction for Multi-Frequency Collimated Beam Ultrasound Systems (2022)

Collimated beam ultrasound systems are a technology for imaging inside multi-layered structures such as geothermal wells. These systems work by using a collimated narrow-band ultrasound transmitter that can penetrate through multiple layers of heterogeneous material. A series of measurements can then be made at multiple transmit frequencies. However, commonly used reconstruction algorithms such as Synthetic Aperture Focusing Technique (SAFT) tend to produce poor quality reconstructions for these systems both because they do not model collimated beam systems and they do not jointly reconstruct the multiple frequencies. In this paper, we propose a multi-frequency ultrasound model-based iterative reconstruction (UMBIR) algorithm designed for multi-frequency collimated beam ultrasound systems. The combined system targets reflective imaging of heterogeneous, multi-layered structures. For each transmitted frequency band, we introduce a physics-based forward model to accurately account for the propagation of the collimated narrow-band ultrasonic beam through the multi-layered media. We then show how the joint multi-frequency UMBIR reconstruction can be computed by modeling the direct arrival signals, detector noise, and incorporating a spatially varying image prior. Results using both simulated and experimental data indicate that multi-frequency UMBIR reconstruction yields much higher reconstruction quality than either single frequency UMBIR or SAFT.
Synthesis and Characterization of Antimony(III) Complexes of Thioamides, and Crystal Structure of {[Sb(Imt)2Cl2]2((2‐Imt)}Cl2(Imt=Imidazolidine‐2‐thione) (2011)

Abstract Antimony(III) complexes of thioamides [thioamides=thiourea (Tu), N , N′ ‐dimethylthiourea (Dmtu), tetramethylthiourea (Tmtu), imidazolidine‐2‐thione (Imt) and diazinane‐2‐thione (Diaz)] with the general formulae, Sb(thione) n Cl 3 ( n =1, 2, 2.5, 3) were prepared and characterized by elemental analysis, IR and NMR ( 1 H, 13 C) spectroscopic methods. The spectral data of the complexes are consistent with the coordination of the thiones to antimony(III). The crystal structure of one of them, {[Sb(Imt) 2 Cl 2 ] 2 ( μ 2 ‐Imt)}Cl 2 ( 1 ), was determined by X‐ray crystallography, which shows that the complex is dinuclear consisting of two [Sb(Imt) 2 Cl 2 ] units bridged by an Imt molecule. In 1 , the antimony atom is bonded to two chlorine atoms, two sulfur atoms of coordinated Imt molecules and one sulfur atom of a bridging Imt molecule. The antimony environment can be considered to be distorted octahedral with one Cl − ion weakly bound to antimony.
Full Poincaré sphere coverage with plasmonic nanoslit metamaterials at Fano resonance (2010)

A form-birefringent plasmonic metamaterial of the subwavelength thickness is used to convert the light's polarization state in a way to cover the whole Poincar\'e sphere's surface by adjusting the experimental configuration. This optical anisotropy is induced by grating surface plasmon polaritons of a nanoslit array made in a thin golden film with the narrow spectral Fano resonance. Phase delay between linearly polarized states introduced by the sample reaches the value of $0.85\ensuremath{\pi}$ in the visible corresponding to the effective ordinary-extraordinary refractive index difference of $\ensuremath{\Delta}n\ensuremath{\simeq}10.4$.
Google's Training Chips Revealed: TPUv2 and TPUv3 (2020)

This article consists only of a collection of slides from the author's conference presentation.
When Individual Data Points Matter: Interactively Analysing Classification Landscapes (2016)

The selection of classification models among several options with similar accuracy cannot be done through purely automated methods, and especially in scenarios in which the cost of misclassified instances is crucial, such as criminal intelligence analysis. To tackle this problem and illustrate our ideas, we developed a prototype for the visualization and comparison of classification landscapes. In our system, the same data is given to different classification models. Classification landscapes are shown in the scatter plots, together with their geographical location on a map and detailed textual description for each data record. To enhance model comparison, we implemented interactive anchor-points selection in classification landscapes. Using those anchors, the user can manipulate and reproject the model results in order to get more comparable classification landscapes. We provided a use case with crime data, for crime intelligence analysis.
ChemInform Abstract: Alkynyl‐2‐deoxy‐D‐riboses, a Cornucopia for the Generation of Families of C‐Nucleosides. (2011)

Abstract A practical synthesis of acetylated deoxyribose (IV) and is α‐anomer is presented.
Energy Distribution of Positive Charges in Gate Dielectric: Probing Technique and Impacts of Different Defects (2013)

Positive charges (PCs) in gate dielectric shift the threshold voltage and cause a time-dependent device variability. To assess their impact on circuits, it is useful to know their distribution for a wide energy range both within and beyond silicon bandgap. Such a distribution is still missing, and a technique for its extraction has not been demonstrated yet. The central objective of this paper is, for the first time, to develop a new fast technique and to demonstrate its capability for probing the energy distribution of PCs over such a wide energy range. Results show that PCs can vary significantly with energy level. The PCs in different energy regions clearly originate from different defects. The PCs below the valence band edge are as-grown hole traps that are insensitive to stress time and temperature, and substantially higher in thermal SiON. The PCs above the valence-band edge are from created defects. The PCs within the bandgap have a peak near Ev + 0.8 eV and saturate for either longer stress time or higher stress temperature. In contrast, the PCs above a conduction band edge, namely the antineutralization positive charges, do not saturate, and their generation is clearly thermally accelerated.
Abstract 2955: Increased Luminal Diameter With Drug-eluting Versus Bare-metal Stenting Of The Piglet Ductus Arteriosus (2007)

Introduction: Maintaining ductus arteriosus (DA) patency by stent implantation may be advantageous in congenital heart disease management algorithms. Rapamycin, an immuno-suppressant drug, has anti-proliferative properties, inhibits smooth muscle cell (SMC) migration and may deter intimal hyperplasia occurring during spontaneous closure and post stent implantation of the DA. Methods: 16 Yorkshire piglets (age 7–11 days old, weight 2.2– 4.9 kg) underwent stent implantation of the DA (rapamycin-eluting (n = 8), bare metal (n = 8) stents, (3.5 mm diameter) and were sacrificed at 2, 4 and 6 weeks. Dissected DA were analyzed for SMC and extracellular matrix components (elastin, collagen and glycosaminoglycans). External diameter, wall thickness and lumen diameter were analyzed by morphometric software. DA-derived SMC were isolated and cultured for 7 days in the presence or absence of 100mM of rapamycin. Cellular proliferation rates were assessed by proliferative antigen Ki-67 detection and [ 3 H]-thymidine incorporation. Specific antibodies to elastin, collagen type I, and chondroitin sulfate-containing glycosaminoglycans were analyzed. Results: Rapamycin-eluting stents significantly inhibited neointimal formation compared with bare metal stents at 4 and 6 weeks resulting in larger luminal diameters (p&lt;0.001). The in vitro studies demonstrated rapamycin-treated cultures of the DA-derived SMC had 50% lower proliferation rates (p&lt;0.001). Conclusions : Rapamycin has anti-proliferative actions on the DA. Drug-eluting stents may be a more efficient tool for prolonging patency of the DA in neonates palliated for future correctional surgery.
Quantum Control of the Tin-Vacancy Spin Qubit in Diamond (2022)

Group-IV colour centres in diamond are a promising light-matter interface for quantum networking devices. We demonstrate multiaxis coherent control of the SnV spin-qubit via an all-optical stimulated Raman drive between the ground and excited states.
Supplementary Table S1 from Integrated Genomic Characterization of the Human Immunome in Cancer (2023)

&lt;p&gt;Table S1. The GSEA score and p-values for differentially expressed genes that are immunologically relevant.&lt;/p&gt;
Structural characterization of a plant photosystem I and NAD(P)H dehydrogenase supercomplex (2013)

Cyclic electron transport (CET) around photosystem I (PSI) plays an important role in balancing the ATP/NADPH ratio and the photoprotection of plants. The NAD(P)H dehydrogenase complex (NDH) has a key function in one of the CET pathways. Current knowledge indicates that, in order to fulfill its role in CET, the NDH complex needs to be associated with PSI; however, until now there has been no direct structural information about such a supercomplex. Here we present structural data obtained for a plant PSI-NDH supercomplex. Electron microscopy analysis revealed that in this supercomplex two copies of PSI are attached to one NDH complex. A constructed pseudo-atomic model indicates asymmetric binding of two PSI complexes to NDH and suggests that the low-abundant Lhca5 and Lhca6 subunits mediate the binding of one of the PSI complexes to NDH. On the basis of our structural data, we propose a model of electron transport in the PSI-NDH supercomplex in which the association of PSI to NDH seems to be important for efficient trapping of reduced ferredoxin by NDH.
Count-rate statistics for drift detectors (2002)

Synchrotron light sources are low-duty-cycle pulsed X-ray sources, a fact that is often neglected in estimating the count-rate capabilities of photon-counting detectors in synchrotron-based experiments. In this paper, we demonstrate the effect that this has on the pileup statistics of drift detectors. We derive expressions for the cases of continuous and pulsed X-ray sources. We consider a pulsed source with period that is either much less than the shaper support time or much less than the average drift time. We also consider a pulsed source with a period that is long or comparable to both the shaper support and the drift time. These conditions correspond to normal and reduced bunch fill patterns of synchrotrons.
Effect of turbulence on the risetime of sonic booms and spark generated N waves (2002)

The risetime of acoustic pulses, such as sonic booms and electric spark generated N waves, is affected by propagation through turbulence. Risetime increases with increasing propagation distance and turbulence intensity. Data from electric spark propagation through turbulence show that Pierce’s wave front folding theory (1971) correctly describes the dependence of risetime τ on propagation distance x, i.e., τ∝x11/7, and turbulence kinetic energy dissipation rate ε, i.e., τ∝ε4/7. More recently, Pierce (AIAA-95-105) also derived a dispersion relation for acoustic pulse propagation through turbulence. The dispersion relation leads to an extra term in the propagation equation and takes into account the averaged contribution of all or part of the turbulence spectrum. A review of the dispersion theory is presented. Then a Van Kármán turbulent kinetic energy spectrum is used to obtain an accurate representation of both very large and very small turbulence structures. New results are compared with previous results obtained with a Kolmogorov spectrum.