gebhart/patrepeval huggingface dataset:
Human-inspired feedback synergies for environmental interaction with a dexterous robotic hand (2014)

Effortless control of the human hand is mediated by the physical and neural couplings inherent in the structure of the hand. This concept was explored for environmental interaction tasks with the human hand, and a novel human-inspired feedback synergy (HFS) controller was developed for a robotic hand which synchronized position and force feedback signals to mimic observed human hand motions. This was achieved by first recording the finger joint motion profiles of human test subjects, where it was observed that the subjects would extend their fingers to maintain a natural hand posture when interacting with different surfaces. The resulting human joint angle data were used as inspiration to develop the HFS controller for the anthropomorphic robotic hand, which incorporated finger abduction and force feedback in the control laws for finger extension. Experimental results showed that by projecting a broader view of the tasks at hand to each specific joint, the HFS controller produced hand motion profiles that closely mimic the observed human responses and allowed the robotic manipulator to interact with the surfaces while maintaining a natural hand posture. Additionally, the HFS controller enabled the robotic hand to autonomously traverse vertical step discontinuities without prior knowledge of the environment, visual feedback, or traditional trajectory planning techniques.
Survival Determinants in Lung Transplant Patients With Chronic Allograft Dysfunction (2011)

Although most CLAD patients develop an obstructive pulmonary function, 28% develop a restrictive pulmonary function, compatible with the recently defined restrictive allograft syndrome phenotype. Early-onset CLAD, previous development of NRAD, and the development of restrictive allograft syndrome are associated with worse survival after CLAD has been diagnosed.
Influence of Degree of Protein Aggregation on Mass Transport Through Wheat Gluten Membranes and Their Digestibility—An In Vitro Study (2004)

ABSTRACT The influence of the network structure of wheat gluten on the barrier properties against enzymes was investigated in vitro. The changes in the network structure were introduced by different temperature treatments. The modifications were assessed with solubility studies of wheat gluten proteins in sodium dodecyl sulfate (SDS). The physical barrier properties of wheat gluten membranes were investigated with transport studies examining the transfer of a model protein with no enzymatic activity (BSA) through gluten membranes. The protein network was an effective barrier for BSA, although lightly cross‐linked films were mechanically instable. Membrane breaks occurred in function of the cross‐linking density (percentage of SDS‐insoluble proteins) after only 24 hr for lightly cross‐linked films (≈30% SDS‐insoluble proteins), while highly cross‐linked membranes (≈80% SDS‐insoluble protein) were tight up to more than 33 days. The digestion experiments of the gluten films with pepsin showed that the hydrolysis of wheat gluten films with &gt;72% of SDS‐insoluble protein was significantly retarded. In conclusion, technological treatments to increase the cross‐linking density of gluten have the potential to slow the digestion of cereal‐based foodstuff and to reduce the degradation rate of composite biomaterials.
Induction of ovulation during anoestrus in two breeds of sheep with multiple injections of LH alone or in combination with FSH (1986)

The gonadotrophic requirements for the induction of ovulation and formation of a viable corpus luteum in two breeds of seasonally anoestrous sheep of differing fecundity was investigated. Welsh Mountain (n = 20) and Damline ewes (n = 19) were given LH or FSH either alone or in combination. Luteinizing hormone was injected i.v. at an increasing frequency for 72 h (one injection every 3 h for 24 h, one every 2 h for 24 h, and one every hour for 24 h) and FSH was injected in an identical manner for the first 36 h of treatment. Exogenous LH alone and in combination with FSH induced a preovulatory LH surge in all 19 ewes and ovulation in 18 out of 19 ewes of both breeds. However exogenous FSH alone was ineffective. The incidence of normal corpus luteum function in ewes induced to ovulate was low and not related to treatment, timing or magnitude of the LH/FSH surge. It is concluded that in both breeds studied it is the infrequency of LH pulses which limits the development of preovulatory follicles during seasonal anoestrus, that the requirement for FSH remains unknown, and that the induction of inadequate corpora lutea during seasonal anoestrus reflects either defects in hormonal priming of the preovulatory follicle and/or inappropriate luteotrophic support after ovulation.
Dynamics of a wetting layer and Marangoni convection in microgravity (2011)

Near the liquid-vapor critical point in pure fluids, material and thermal properties vary considerably with temperature. In a series of microgravity experiments, sulfur hexafluoride (SF6) was heated ∼1 K above its critical temperature, then quenched below the critical temperature in order to form gas and liquid domains. We found a power law exponent of 0.389 ± 0.010 for the growth of the wetting layer thickness during the intermediate stage of phase separation. Full and microscopic view images of the sample cell unit were analyzed to determine the changes in the size distribution of liquid droplets inside the gas phase over time. We found that the distribution of diameters for liquid droplets always contains a fraction of very small droplets, presumably due to a continuous nucleation process. At the same time, the size distribution flattens over time and rapidly includes large-size droplets, presumably generated through a coalescence mechanism. By following both a large gas bubble over two hours of video recordings, we found periodic and synchronous motion of the gas bubble along both the x and y directions. By following a large liquid droplet embedded into the large gas bubble, we found periodic, out of phase motions, which we related to Marangoni convection. The experimentally measured velocity of the liquid droplet is in good agreement with the theoretical predicted velocity of ∼0.386 μm/s obtained from Young's thermocapillary effect.
Pestalotheols E–H: Antimicrobial Metabolites from an Endophytic Fungus Isolated from the Tree Arbutus unedo (2011)

Abstract Four new compounds, pestalotheols E–H ( 1 – 4 ), along with one known metabolite, anofinic acid ( 5 ), were isolated from a fungal endophyte, an unidentified Ascomycete. The structures of the new compounds were elucidated by detailed spectroscopic analysis, and the relative stereochemistries of pestalotheols E–H ( 1 – 4 ) were confirmed by NOESY experiments. Compounds 1 – 5 showed good antifungal, antibacterial, and antialgal activities against Microbotryum violaceum , Escherichia coli , Bacillus megaterium , and Chlorella fusca ; compounds 3 – 5 showed strong antibacterial activity.
Synthesis and Seed Germination Stimulating Activity of Some Imino Analogs of Strigolactones (2007)

Strigolactones are germination stimulants for seeds of the root parasitic weeds, Striga and Orobanche spp. The imino analog of GR24 showed moderate germination stimulating activity against the seeds of S. hermonthica. The seed germination stimulating activity of some phenyliminoacetates and phenyliminoacetonitriles was also examined. The degree of activity of the phenyliminoacetate was less than that of the phenylacrylates. On the other hand, the degree of activity of the phenyliminoacetonitrile was comparable to that of the phenylacrylonitriles. Among the tested compounds, the 3-pyridyliminoacetonitrile showed higher activity against the seeds of O. crenata than GR24. These findings demonstrate that it is not always essential to have the Michael acceptor of the C-D ring junction moiety which has been proposed to react with nucleophilic species presented at the target site to enhance the activity.
Gas Sensor Devices Obtained by Ink‐jet Printing of Polyaniline Suspensions (2007)

Abstract We report on the fabrication process of a sensing device obtained by ink‐jet printing of polyaniline suspension on alumina substrates. We optimized the inkjet parameters (amplitude and duration of jetting impulse, jetting frequency, substrate velocity) to obtain thin polyaniline lines as sensitive layers and we analyzed the morphology of PANI lines on substrate. Device response towards ammonia are also discussed and compared with reference device obtained by spin‐coating.
PREVALENCE AND CORRELATES OF PROSTATITIS IN THE HEALTH PROFESSIONALS FOLLOW-UP STUDY COHORT (2002)

Self-reported prostatitis was common among healthy men of all ages but there was considerable overlap with self-reported BPH. Prostatitis had several identifiable correlates that may aid in its recognition.
Characterization of a high capacity, dual compensation chamber loop heat pipe (1999)

Results of acceptance tests at the Institute of Thermal Physics (ITP) in Russia and initial performance tests at the Air Force Research Laboratory (AFRL) of a dual compensation chamber (CC) loop heat pipe (LHP) are compared for three orientations. At steady state, temperatures were higher and heat transfer coefficients and conductance were lower at AFRL. These differences are attributed to higher resistance due to usage, rather than test, mounting and more complex insulation lay-up at AFRL. For the horizontal orientation power (W) and heat flux (W /cm2) reached at IPT and AFRL were 1500 and 10.5, and 900 and 6.3, respectively. AFRL transient data showed brief reverse flow on startup for some runs with power at or below 50 W, at times marked temperature fluctuations, and response to chiller temperature change.
Threshold and memory switching in polycrystalline silicon (1982)

Both threshold and memory switching have been observed in very high value resistors formed from undoped low pressure chemical vapor deposited (LPCVD) polycrystalline silicon and of a size suitable for microelectronic application. The resistors undergo a reversible, current-controlled negative resistance transition at a threshold voltage of around 50 V. A slightly higher applied voltage induces the memory switching transition, with a permanent increase in conductance of more than a factor of 106. It is suggested that threshold switching occurs via charge injection that neutralizes grain boundary potential barriers, thereby increasing the carrier mobility. It is probable that the memory switching event is due to the formation of a permanent, relatively conductive filament induced by Joule heating of the material.
Design and control of permanent magnet assisted synchronous reluctance motor with copper loss minimization using MTPA (2020)

International audience
Lateral Motion Control of an Underwater Thruster System Suspended to a Ship By a Slender Marine Structure (1996)

This paper describes the control of a system consisting of a thrust unit connected to a surface vessel by means of a marine cable, riser or other similar slender marine structure. Motion only in the lateral direction has been considered. Position and velocity control of the thruster system results in vibration suppression in the system. The stability of the system is analyzed using Lyapunov theory, and the system is shown to be globally asymptotically stable and thereby robust to environmental disturbance,
The First Self‐Assembled Dinuclear Triple‐Helical Lanthanide Complex: Synthesis and Structure (1992)

Eighteen europium–nitrogen bonds are formed when a specially designed bis(terdentate) nitrogen-containing ligand L1 reacts with europium(III) perchlorate. In the resulting triple-helical dinuclear cation [Eu2L]6+ 1, the metals are coordinated to nine nitrogen atoms each, forming a slightly distorted tricapped trigonal prism (see schematic representation on the right; the open circles are the coordinating N atoms of L1, solid circles the europium(III) ions).
Open implementation toolkit for building survivable applications (2002)

We consider two aspects of survivability namely survival by adaptation and survival by protection. We show how the quality objects (QuO) distributed adaptive middleware framework enables us to introduce these aspects of survivability in a flexible and systematic manner. We describe a toolkit for developing adaptive applications and demonstrate how more survivable applications can be built using the toolkit.
Chronically Infused Intrathecal Morphine in Dogs (2003)

The authors found that high intrathecal morphine concentrations lead to aseptic intrathecal inflammatory masses. The lack of effect of clonidine and the possible suppressive effects of clonidine on the local reaction suggest the utility of such coadministration.
Biologically Plausible Local Learning Rules for the Adaptation of the Vestibulo-Ocular Reflex (1992)

The vestibulo-ocular reflex (VOR) is a compensatory eye movement that stabilizes images on the retina during head turns. Its magnitude, or gain, can be modified by visual experience during head movements. Possible learning mechanisms for this adaptation have been explored in a model of the oculomotor system based on anatomical and physiological constraints. The local correlational learning rules in our model reproduce the adaptation and behavior of the VOR under certain parameter conditions. From these conditions, predictions for the time course of adaptation at the learning sites are made. 1 INTRODUCTION The primate oculomotor system is capable of maintaining the image of an object on the fovea even when the head and object are moving simultaneously. The vestibular organs provide information about the head velocity with a short delay of 14 ms but visual signals from the moving object are relatively slow and can take 100 ms to affect eye movements. The gain, G, of the VOR, defined as ...
Detection of Damage and Crack in Railhead by Using Eddy Current Testing (2011)

Eddy current testing is a nondestructive testing method, which is used to detect discontinuities and defects in conductive materials. Using this technique, two different types of artificial defects in a railhead were evaluated in order to analyze the relationship between different types of defects and eddy current signals, and to obtain data on the size of the rail surface defects and crack location. The actually used rail sample was also studied. Surface cracks and defects were clearly observed as amplitude and phase changes of detected signals. This study succeeds in quantitatively analyzing and discriminating the damage types.
Experiments and Modeling of PEM Fuel Cells for Dead-Ended Anode Operation. (2010)

This thesis develops models for the design and control of Dead-Ended Anode (DEA) fuel cell systems. Fuel cell operation with a dead-ended systems anode reduces fuel cell system cost, weight, and volume because the anode external humidification and recirculation hardware can be eliminated. However, DEA operation presents several challenges for water management and anode purge scheduling. Feeding dry hydrogen reduces the membrane water content near the anode inlet. Large spatial distributions of hydrogen, nitrogen, and water develop in the anode, affecting fuel cell durability. The water and nitrogen which cross through the membrane accumulate in the anode during dead-ended operation. Anode channel liquid water plugging and nitrogen blanketing can induce hydrogen starvation and, given the right conditions, trigger cathode carbon oxidation leading to permanent loss of active catalyst area. Additionally, the accumulation of inert gases in the anode leads to a decrease in cell efficiency by blocking the catalyst and reducing the area available to support the reaction. Purging the anode uncovers the catalyst and recovers the available area, but at the expense of wasting hydrogen fuel. To understand, design, and control DEA fuel cells, various models are developed and experimentally verified with plate-to-plate experiments using neutron radiography and gas chromatography. The measurements are used to parameterize dynamic models of the governing two-phase (water liquid and vapor) spatially distributed transport phenomena. A reduced order model is developed that captures the water front evolution inside the gas diffusion layer and channels. A second model captures the nitrogen blanketing front location along the anode channel. The reduced order models are combined to form a complete description of the system. They require less computational effort, allow efficient parameterization, and provide insight for developing control laws or designing and operating DEA fuel cells.
In situ growth of CuS nanoparticles on g-C3N4 nanosheets for H2 production and the degradation of organic pollutant under visible-light irradiation (2019)

The solar-to-fuel conversion using a photocatalyst is an ideal method to solve the energy crisis and global warming. In this contribution, photocatalytic H<sub>2</sub> production and organic pollutant removal using g-C<sub>3</sub>N<sub>4</sub>/CuS composite was demonstrated. Well dispersed CuS nanoparticles (NPs) with a size of about 10 nm were successfully grown on the surface of g-C<sub>3</sub>N<sub>4</sub> nanosheet <i>via</i> a facile hydrothermal method. The as-prepared g-C<sub>3</sub>N<sub>4</sub>/CuS nanocomposite at an optimized loading exhibited a much higher visible light photoactivity, giving up to 2.7 times and 1.5 times enhancements in comparison to pure g-C<sub>3</sub>N<sub>4</sub> for photocatalytic H<sub>2</sub> production and methylene orange (MO) degradation, respectively. These enhanced photocatalytic activities are attributed to the interfacial transfer of photogenerated electrons and holes between g-C<sub>3</sub>N<sub>4</sub> and CuS, which leads to effective charge separation on both parts. That is, under the visible light irradiation, electrons in the valence band (VB) of g-C<sub>3</sub>N<sub>4</sub> can directly transfer to the CuS NPs, which can act as an electron sink and co-catalyst to promote the separation and transfer of photo-generated electrons, thus significantly improving the photocatalytic efficiency.
Triggering TLR7 in mice induces immune activation and lymphoid system disruption, resembling HIV-mediated pathology (2008)

Chronic immune activation is a major cause for progressive immunodeficiency in human immunodeficiency virus type-1 (HIV) infection. The underlying trigger, however, remains largely unknown. HIV single-stranded RNA is a potent immune activator by triggering Toll-like receptor (TLR) 7/8. Thus, we hypothesized that sustained TLR7 triggering induces chronic immune activation and thereby contributes to progressive immunodeficiency. We used the synthetic compound R848 or a mixture of uridine-rich HIV single-stranded (ss) RNA oligonucleotides--both are potent TLR7/8 agonists--to explore the effects of sustained TLR7 triggering on the murine lymphoid system. Sustained TLR7 triggering induced an immunopathology reminiscent of progressive lymphoid destruction in HIV disease; we observed lymphopenia, elevated proinflammatory cytokines, splenomegaly, contracted lymphoid subsets, and lymphoid microarchitecture alteration with reduced marginal zone B-lymphocytes. Upon exposure to inactivated vesiculo-stomatitis virus, antibody production was abolished, although splenic lymphocytes were activated and total IgG was elevated. Our data imply that HIV itself may directly contribute to immune activation and dysfunction by stimulating TLR7. Thus, manipulation of TLR7 signaling may be a potential strategy to reduce chronic hyper-immune activation and, thereby, disease progression in HIV infection.
Experimental evaluation of the age of information via emulation (2015)

This work focuses on evaluating a new metric for the timeliness of information in a status monitoring system, referred to as the age of information or the status age. Investigation into the age of information metric is fairly recent and has primarily been focused on theoretical analysis, and there has been no evaluation of the metric in a realistic system of networked nodes. We evaluate the age metric in a realistic wireless system using the open source network emulation tools CORE and EMANE. Our goal is to validate theoretical results on age for a single link across a wide range of system parameters. In addition to verifying existing theoretical results, we go further by adding more theoretical results that better model the emulated system than currently offered in the theory. Our results indicate that the theoretical results are indicative of real world behavior, but we also identify the limitations of the theoretical models and the impact on the emulated age.
8.1: Experimental verification of a &#x03BB;/50 optical spot size of a C-aperture nano antenna tip for photo-electron emitter applications (2010)

We propose a photo-electron emitter structure whose electron beam size is 20 nm using CsBr photo-emission layer and a novel nano-optical antenna structure. The optical spot size of 20 nm has been experimentally demonstrated.
Randomized clinical trial comparing oral nifedipine with lateral anal sphincterotomy and tailored sphincterotomy in the treatment of chronic anal fissure (2005)

LAS was most effective in providing pain relief and allowing rapid fissure healing, with minimal recurrence and no increased risk of incontinence, in patients with good anal sphincter function.
Restructuring of Graphene Oxide Sheets into Monodisperse Nanospheres (2012)

We demonstrate a method to restructure graphene oxide sheets into monodisperse solid 17 nm nanospheres by tuning the solution ionic strength. This method enables the preparation of both two-dimensional self-assemblies comprising three-dimensional GO nanospheres and three-dimensional super assemblies of GO clusters via dispersal into an aerosol. The GO super assemblies are more thermally stable than single crumpled sheets. Finally, we demonstrate that GO nanospheres and their assemblies can be thermally processed to form reduced GO with high aromatic character while still maintaining their spherical conformation.
Diffusion and Solubility of Common Microelectronic Airborne Molecular Contaminants into PEI Thin Polymer Membranes and its Related Contamination Control Applications (2020)

Sorption and outgassing mechanisms of corrosive gases in relation with wafers lost yield due to polymer container Front Opening Unified Pod (FOUP), is crucial information to understand the cross contamination between FOUP and wafers. This occurs when FOUPs (made in polymers) outgas contaminants into the wafer surrounding minienvironment. Gas sorption is governed by surface adsorption, followed by diffusion and solubility and then, permeability appears as a key parameter to understanding these cross contamination phenomena. In this work, we present the transport coefficients obtained for gaseous HF and HCl at cleanroom conditions (Patm, 21 ± 2°C &amp; 40% RH) at two different HX concentrations using the sorption kinetic method, based on Fick’s law, for thin films (≈50μm) of PEI. Finally, we establish the relationship between the sorption parameters of a polymer thin film and the potential contamination transfer from a FOUP whose main polymer material is similar.