gebhart/patrepeval huggingface dataset:
Modelling and simulation of an harvester head mechanism (2017)

This paper presents an approach for modelling and simulating a harvester head mechanism in the delimbing process of hardwood stands. An original model of the mechanical transmission is developed which allows, in the early phases of design, sizing of actuators and structural elements but also the validation and optimization of the various stages of the logging operation. The considered type of trees is characterized by flexuous trunks and big branches. Hence, the current harvester heads are not enough efficient to process such trees. New designs of harvester head are required to overcome these problems. In order to predict the process performances associated to several novel architectures of harvester heads, in preliminary design stage, a modelling of the process is developed. It is based on parameterized tree models with realistic geometry. The global harvesting head model makes interact original sub-models representative of basics functions as feeding trunk into the head and cutting branches by knife. These models identified experimentally, allow a good prediction of the interactions between the different parts of the machine and trees. The modelling and simulation of harvester head mechanisms are implemented in a numerical multibody environment. Simulation results of the global model are in a good agreement with the observed behaviour of the real system and represent a design support tool to develop innovative concepts of harvester head.
Synthesis of ( R , R )‐4,6‐Dibenzofurandiyl‐2,2′‐Bis (4‐Phenyloxazoline) ( DBFOX / PH ) – A Novel Tridentate Ligand (2003)

Abstract Dibenzofuran‐4,6‐dicarboxylic acid (R,R)‐Dibenzofuran‐4,6‐dicarboxylic acid bis(2‐hydroxy‐1‐phenylethyl) amide (R,R)‐4,6‐Dibenzofurandiyl‐2,2′(4‐phenyloxazoline) Sec‐Butyl lithium Dimethylformamide Diethylaminosulfur trifluoride Carbon dioxide
Inhibition of Oxidative Stress in Rostral Ventrolateral Medulla Improves Impaired Baroreflex Sensitivity in Stroke-Prone Spontaneously Hypertensive Rats (2012)

Reactive oxygen species (ROS) in rostral ventrolateral medulla (RVLM) of brainstem contribute to sympathoexcitation and are critically involved in the pathogenesis of hypertension. Baroreflex sensitivity (BRS) is a valuable prognostic parameter of the autonomic nervous system, and is impaired in hypertension. The aim of the present study was to determine whether or not a chronic reduction of ROS in the RVLM improves impaired BRS in hypertensive rats. We transfected adenovirus vectors encoding either manganese superoxide dismutase (AdMnSOD) or β-galactosidase (AdLacZ) into the RVLM of stroke-prone spontaneously hypertensive rats (SHRSP). We measured BRS using the spontaneous sequence method. BRS was significantly lower in SHRSPs than in Wistar-Kyoto rats. In the AdMnSOD-transfected SHRSP, blood pressure, heart rate, and sympathetic nervous system activation were significantly decreased from day 5 after the gene transfer. BRS in the AdMnSOD-transfected SHRSP was significantly increased from day 4 after the gene transfer with the reduction of ROS in the RVLM. Furthermore, in the AdMnSOD-transfected SHRSP, intravenous infusion of atropine dramatically decreased BRS. In contrast, in the AdLacZ-transfected SHRSP, atropine did not decrease BRS. These results suggest that chronic reduction of ROS in the local RVLM improves the impaired BRS in SHRSP through inhibition of the sympathetic component.
Global Phase Correction Improves Metalens Efficiency (2022)

We introduce a fast joint optimization of unit cells across the whole metasur-face, exploiting interactions between nearby cells to produce a desired near-field profile and improving whole-lens focusing efficiency.
Emissivities and Optical Constants of Electromagnetically Levitated Liquid Metals as Functions of Temperature and Wavelength (1990)

The development of a unique, noncontact, temperature measurement device utilizing rotating analyzer ellipsometry is described. The technique circumvents the necessity of spectral emissivity estimation by direct measurement concomittant with radiance brightness. Using this approach, the optical properties of electromagnetically levitated liquid metals Cu, Ag, Au, Ni, Pd, Pt, Zr were measured in situ at 4 wavelengths and up to 600 K superheat in the liquid. The data suggest an increase in the emissivity of the liquid compared with the incandescent solid. The data also show moderate temperature dependence of the spectral emissivity, particularly when the wavelength of light is close to an absorption edge of the material. The data for both solids and liquids show excellent agreement with available values in the literature for the spectral emissivities as well as the optical constants.
A preclinical assessment of d.l-govadine as a potential antipsychotic and cognitive enhancer (2011)

Tetrahydroprotoberberines (THPBs) are compounds derived from traditional Chinese medicine and increasing preclinical evidence suggests efficacy in treatment of a wide range of symptoms observed in schizophrenia. A receptor-binding profile of the THPB, d.l-govadine (d.l-Gov), reveals high affinity for dopamine and noradrenaline receptors, efficacy as a D2 receptor antagonist, brain penetrance in the 10-300 ng/g range, and thus motivated an assessment of the antipsychotic and pro-cognitive properties of this compound in the rat. Increased dopamine efflux in the prefrontal cortex and nucleus accumbens, measured by microdialysis, is observed following subcutaneous injection of the drug. d.l-Gov inhibits both conditioned avoidance responding (CAR) and amphetamine-induced locomotion (AIL) at lower doses than clozapine (CAR ED50: d.l-Gov 0.72 vs. clozapine 7.70 mg/kg; AIL ED50: d.l-Gov 1.70 vs. clozapine 4.27 mg/kg). Catalepsy is not detectable at low biologically relevant doses, but is observed at higher doses. Consistent with previous reports, acute d-amphetamine disrupts latent inhibition (LI) while a novel finding of enhanced LI is observed in sensitized animals. Treatment with d.l-Gov prior to conditioned stimulus (CS) pre-exposure restores LI to levels observed in controls in both sensitized animals and those treated acutely with d-amphetamine. Finally, possible pro-cognitive properties of d.l-Gov are assessed with the spatial delayed win-shift task. Subcutaneous injection of 1.0 mg/kg d.l-Gov failed to affect errors at a 30-min delay, but decreased errors observed at a 12-h delay. Collectively, these data provide the first evidence that d.l-Gov may have antipsychotic properties in conjunction with pro-cognitive effects, lending further support to the hypothesis that THPBs are a class of compounds which merit serious consideration as novel treatments for schizophrenia.
Animal models of enteroaggregativeEscherichia coliinfection (2013)

Enteroaggregative Escherichia coli (EAEC) has been acknowledged as an emerging cause of gastroenteritis worldwide for over two decades. Epidemiologists are revealing the role of EAEC in diarrheal outbreaks as a more common occurrence than ever suggested before. EAEC induced diarrhea is most commonly associated with travelers, children and immunocompromised individuals however its afflictions are not limited to any particular demographic. Many attributes have been discovered and characterized surrounding the capability of EAEC to provoke a potent pro-inflammatory immune response, however cellular and molecular mechanisms underlying initiation, progression and outcomes are largely unknown. This limited understanding can be attributed to heterogeneity in strains and the lack of adequate animal models. This review aims to summarize current knowledge about EAEC etiology, pathogenesis and clinical manifestation. Additionally, current animal models and their limitations will be discussed along with the value of applying systems-wide approaches such as computational modeling to study host-EAEC interactions.
MP70-09 PREDICTORS OF BIOCHEMICAL RECURRENCE AFTER PRIMARY FOCAL CRYOTHERAPY FOR LOCALIZED PROSTATE CANCER: A MULTI-INSTITUTIONAL ANALYTIC COMPARISON OF THE PHOENIX AND STUTTGART CRITERIA (2017)

selecting the appropriate candidate for cryoablation and determining the intensity of post-treatment follow-up.
Recombinant major ampullate spidroin-particles as biotemplates for manganese carbonate mineralization (2021)

Abstract Mineral deposition in biological systems is often templated by organic matrices including proteins directing the nucleation and growth of bioceramics by interacting with early stage species of the mineralization process or coordinating specific facets of the forming crystal. Structurally, charged surface patches are a characteristic motif of biomineralization-associated proteins, which are able to accumulate and bind ions from the surrounding media and, therefore, initiate, promote or inhibit mineralization. Controlled protein engineering enables the manipulation and control of bioinspired in vitro precipitation systems, and thus not only opens prospects for the design of environmentally benign synthetic strategies towards hierarchically structured functional materials, but also enhances the understanding of fundamental interaction mechanisms in biomineralization processes. Here, two recombinant variants of the spider silk protein ADF4 were engineered with oppositely charged peptide tags. Both were processed into micrometer-sized particles and investigated for their influence on manganese carbonate mineralization. Micro- and nano-structured manganese carbonate represents an attractive material for diverse applications including catalysis and wastewater treatment. While both types of spider silk particles were incorporated into the mineral structure, the positively tagged proteins appeared to interact more strongly with the formed manganese carbonate crystals than their negatively charged counterparts. Combination of the spider silk particles and poly(acrylic acid) (PAA), a water-soluble structure-directing agent associated with the stabilization of amorphous precursor phases in carbonates, resulted in the formation of film-like non-equilibrium structures of MnCO 3 entrapping the spider silk particles. With the aim to gain mechanistic insights and to elucidate the interaction between the different components involved in the mineralization process, we studied the interplay between PAA, positively or negatively tagged spider silk particles, and Mn(II) ions by time-resolved dynamic light scattering. The here used set-up affords the possibility to identify control strategies for the template-mediated mineralization of manganese carbonate.
On Secure Network Coding for Two Unicast Sessions (2016)

This paper characterizes the secret message capacity of three networks where two unicast sessions share some of the communication resources. Each network consists of erasure channels with state feedback. A passive eavesdropper is assumed to wiretap any one of the links. The capacity achieving schemes as well as the outer bounds are formulated as linear programs. The proposed strategies are then numerically evaluated and shown to achieve higher rate performances (up to a double single- or sum-rate) with respect to alternative strategies, where the network resources are time-shared among the two sessions. These results represent a step towards the secure capacity characterization for general networks. They also show that, even in configurations for which network coding does not offer benefits in absence of security, it can become beneficial under security constraints.
Millimeter wave narrowband optical fiber links using external cavity semiconductor lasers (1994)

We present the theoretical analysis and the experimental implementation of a narrowband millimeter wave optical fiber communication system using an external cavity semiconductor laser. We derive analytic expressions and present experimental data for the modulation response, relative intensity noise, carrier-to-noise ratio, and harmonic distortion for a semiconductor laser in an external cavity operating as a transmitter in the millimeter wave frequency range. We present a system implementation of this capable of transmitting 40-Mbt/s digital data at a 35-GHz subcarrier frequency with bit-error rates below 10/sup /spl minus/9/ over a 6.3-km-long optical fiber link.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>
Crystal-induced anisotropy of spin accumulation in Si/MgO/Fe and Si/Al2O3/ferromagnet tunnel devices (2013)

The effect of crystalline order on the anisotropy of spin accumulation in Si/oxide/ferromagnet tunnel devices has been investigated. The spin accumulation induced electrically in the silicon changes when the magnetization of the ferromagnet is rotated either from in-plane to perpendicular to the tunnel interface or when it is rotated within the plane of the magnetic layer. A fourfold in-plane anisotropy, which reflects the crystalline nature of the tunnel contact, is observed not only for crystalline MgO/Fe contacts, but also for devices with amorphous Al${}_{2}$O${}_{3}$ tunnel barrier and polycrystalline ferromagnetic electrode. The in-plane anisotropy is attributed to the direct coupling of states from the ferromagnet to those in the Si, as in coherent tunneling, causing anisotropy in devices in which only the nonmagnetic (Si) electrode is crystalline.
14nm FinFET based supply voltage boosting techniques for extreme low V<inf>min</inf> operation (2015)

This paper presents new dynamic supply and interconnect boosting techniques for low voltage SRAMs and logic in deep 14nm FinFET technologies. The capacitive coupling in a FinFET device is used to dynamically boost the virtual logic and array supply voltage, improving V <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">min</sub> . Hardware measurements show a 2.5-3x access time improvement at lower voltages and a functional V <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">min</sub> down to 0.3V. Results are supported by novel physics-based capacitance extraction and novel superfast statistical circuit simulations.
Tm-doped GdVO/sub 4/ laser longitudinally pumped by 808 nm laser diode (2004)

In this study, a Tm:GdVO/sub 4/ crystal grown by the Czochralski (CZ) technique was investigated. We pumped the crystal with an 808 nm LD and obtained a slope efficiency of 12.2 %, the maximum value reported for LD-pumped Tm:GdVO/sub 4/.
Conventional and periodic N-grams in the transcription of drum sequences (2003)

In this paper, we describe a system for transcribing polyphonic drum sequences from an acoustic signal to a symbolic representation. Low-level signal analysis is done with an acoustic model consisting of a Gaussian mixture model and a support vector machine. For higher-level modelling, periodic N-grams are proposed to construct a "language model" for music, based on the repetitive nature of musical structure. Also, a technique for estimating relatively long N-grams is introduced. The performance of N-grams in the transcription was evaluated using a database of realistic drum sequences from different genres and yielded a performance increase of 7.6 % compared to a the use of only prior (unigram) probabilities with the acoustic model.
Special Issue: Forming and Joining of Lightweight and Multimaterial Systems (2015)

With this special issue of the Journal of Manufacturing Science and Engineering (JMSE) our objective is to collect papers which enhance the understanding of material deformation processes; expand the lightweight material forming and multi-material joining processes and modeling capability; and promote R&D activities on forming and joining new materials and/or new forming and joining technologies at length scales varying from microto macro-scale.
Inhibitory effects of L-2'-deoxyguanosine 5'-triphosphate (L-dGTP) and L-2'-deoxythymidine 5'-triphosphate (L-dTTP) on human telomerase (1999)

Telomerase, which synthesizes telomeric DNA in eukaryotic cells, is classified as a reverse transcriptase. To clarify the recognition of 2'-deoxyribonucleoside 5'-triphosphate (dNTP) chirality by telomerase, we studied the inhibitory effects of L-dGTP on HeLa cell telomerase activity using a quantitative 'stretch PCR' assay. L-dGTP had a weakly inhibitory effect (IC50 = 200 microM) in the presence of 10 microM dGTP. This effect was less obvious when the concentration of dGTP was higher. L-dTTP had a similar inhibitory effect. These findings suggest that telomerase may bind to L-dGTP and L-dTTP, and that the ability of telomerase to bind to dGTP or dTTP is changed.
ChemInform Abstract: Chemical Vapor Deposition of Molybdenum Silicide (1988)

Abstract is performed in a cold‐wall reactor using a mixture of MoF 6 and SiH 4 as source.
Ohmic Contact Properties of Tungsten Plug and Ferroelectric Properties of (Bi,La)4Ti3O12Thin Film in Stacked Capacitor Structure (2002)

A stacked Bi3.35La0.85Ti3O12 (BLT) capacitor with Pt/IrOx/Ir bottom electrode stack was successfully integrated on a tungsten (W) plug up to metallization for mega-bit ferroelectric random access memory. The optimized BLT film was prepared using the metal-organic decomposition method and the total thermal budget during the integration was 2 h at 650°C in oxygen ambient. For ensuring the thermal stability of the plug, the buried barrier structure was fabricated with both W recess and chemical-mechanical polishing of the TiN barrier layer. The robust W plug showed good ohmic contact behavior and the contact resistance was about 200 Ω/plug after metallization at the contact size of φ 0.30 µm. The electrical properties of the BLT capacitor were also evaluated via the plug after metallization. The remanent polarization (2Pr) was about 26 µC/cm2 and the leakage current density was about 3 ×10-7 A/cm2 at the applied voltage of 3 V. Fatigue loss after 1 ×1011 cycles was about 3% at the switching voltage of 3 V.
Supplementary Table 3 from Immunologic Recognition of a Shared p53 Mutated Neoantigen in a Patient with Metastatic Colorectal Cancer (2023)

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MINER: Multiscale Implicit Neural Representations (2022)

We introduce a new neural signal model designed for efficient high-resolution representation of large-scale signals. The key innovation in our multiscale implicit neural representation (MINER) is an internal representation via a Laplacian pyramid, which provides a sparse multiscale decomposition of the signal that captures orthogonal parts of the signal across scales. We leverage the advantages of the Laplacian pyramid by representing small disjoint patches of the pyramid at each scale with a small MLP. This enables the capacity of the network to adaptively increase from coarse to fine scales, and only represent parts of the signal with strong signal energy. The parameters of each MLP are optimized from coarse-to-fine scale which results in faster approximations at coarser scales, thereby ultimately an extremely fast training process. We apply MINER to a range of large-scale signal representation tasks, including gigapixel images and very large point clouds, and demonstrate that it requires fewer than 25% of the parameters, 33% of the memory footprint, and 10% of the computation time of competing techniques such as ACORN to reach the same representation accuracy.
Film Texture, Hole Transport and Field-Effect Mobility in Polycrystalline SnO Thin Films on Glass (2014)

A p-type oxide semiconductor, tin monoxide (SnO), is expected for high-mobility p-channel oxide thin-film transistors. In this study, we fabricated polycrystalline SnO films by three methods based on pulsed laser deposition, direct deposition at high temperatures, in-situ thermal annealing without exposure to air, and ex-situ thermal annealing after exposure to air. It was found that the crystallite orientation depends largely on the fabrication methods; i.e., the direct deposition enhanced c-axis orientation in particular at higher temperatures, and the in-situ thermal annealing induced homogeneous nucleation of non-oriented crystallites at high temperatures. Further, ex-situ thermal annealing nucleated (101)-oriented crystallites due probably to surface contamination originating from air exposure. In-plane Hall mobility was related to the film texture; i.e., the c-axis oriented films exhibited higher hole mobilities in the a-b plane while the more (101)-oriented films exhibited lower mobilities. This observation was attributed to an intrinsic nature that heavier effective hole mass along the Γ-Z direction ([001] direction) than that of the Γ-M direction ([110] direction), originating from strong anisotropy of the layered crystal structure of SnO. The on-state currents of SnO TFTs fabricated by 300°C deposition or thermal annealing were explained qualitatively by the hole mobilities measured by Hall effect.
Cellulose Nanopaper with Monolithically Integrated Conductive Micropatterns (2019)

Abstract This work presents a route to fabricate micropatterned conductive structures where the conductors are monolithically integrated with nanocellulose‐based paper. To fabricate conductive features, microstructures are patterned on filter papers using wax‐printing, followed by vacuum filtration of carbon nanotubes (CNTs) or silver nanowires (AgNWs) dispersed in aqueous cellulose nanofibrils (CNFs). These patterns are then laminated onto a pure CNF substrate (both in gel‐state) and dried to form cellulose nanopapers with integrated conductive micropatterns. Resolutions of the conductive features are shown down to 400 µm wide, 250 nm thick, and with conductivity values of 115 ± 5 S cm −1 for the CNF–CNT and 3770 ± 230 S cm −1 for the CNF–AgNW micropatterns. The nanopaper and the conductive patterns both constitute random fibrous networks, and they display similar ductility and swelling behavior in water. Thus, the integrated conductive micropatterns can withstand folding, as well as wetting cycles. This stability of the micropatterns makes them useful in various devices based on nanocellulose substrates. As an example, an electroanalytical nanopaper device that operates in wet conditions is demonstrated.
Lambada: Interactive Data Analytics on Cold Data Using Serverless Cloud Infrastructure (2020)

Serverless computing has recently attracted a lot of attention from research and industry due to its promise of ultimate elasticity and operational simplicity. However, there is no consensus yet on whether or not the approach is suitable for data processing. In this paper, we present Lambada, a serverless distributed data processing framework designed to explore how to perform data analytics on serverless computing. In our analysis, supported with extensive experiments, we show in which scenarios serverless makes sense from an economic and performance perspective. We address several important technical questions that need to be solved to support data analytics and present examples from several domains where serverless offers a cost and performance advantage over existing solutions.
Space vector modulation method to balance the neutral voltage for a three level inverter (2010)

This paper investigates the capacitor voltage balance scheme for a neutral point clamped inverter. A symmetrical space vector modulation is used to analyze the imbalance in neutral point voltage. This method overcomes the drawbacks of Nearest Three Vector modulation method. The redundancies of different switch configurations for the generation of the same output voltage are used to limit the voltage drift when modulation index is less than half. The deviation in the neutral voltage is further reduced by adjusting the duty cycle distribution variable. The voltage balance scheme is analyzed for linear and non linear loads. The performance of control strategy is also examined for a grid connected inverter.