gebhart/patrepeval huggingface dataset:
Robotic pick-and-place of novel objects in clutter with multi-affordance grasping and cross-domain image matching (2019)

This article presents a robotic pick-and-place system that is capable of grasping and recognizing both known and novel objects in cluttered environments. The key new feature of the system is that it handles a wide range of object categories without needing any task-specific training data for novel objects. To achieve this, it first uses an object-agnostic grasping framework to map from visual observations to actions: inferring dense pixel-wise probability maps of the affordances for four different grasping primitive actions. It then executes the action with the highest affordance and recognizes picked objects with a cross-domain image classification framework that matches observed images to product images. Since product images are readily available for a wide range of objects (e.g., from the web), the system works out-of-the-box for novel objects without requiring any additional data collection or re-training. Exhaustive experimental results demonstrate that our multi-affordance grasping achieves high success rates for a wide variety of objects in clutter, and our recognition algorithm achieves high accuracy for both known and novel grasped objects. The approach was part of the MIT–Princeton Team system that took first place in the stowing task at the 2017 Amazon Robotics Challenge. All code, datasets, and pre-trained models are available online at http://arc.cs.princeton.edu/
A Car Transportation System Using Multiple Robots iCART : 1st Report, The Design and the Control Algorithm of Robots(Mechanical Systems) (2009)

We propose a novel car transportation system termed as iCART (i__-ntelligent c__-ooperative a__-utonomous r__-obot t__-ransporters). This system transports cars using two robots that move in coordination. This car transportation system can transport cars of any size and offers various functions such as parking, valet parking, towing service, and the transportation of cars inside a factory, onto a ferry, and in complicated parking areas. The robots in this car transportation system comprise three modules: the mobile base module, the lifter module, and the connecting module. This paper describes the details of the operation mechanism and the basic algorithm of each module. A leader-follower-type distributed motion control algorithm is applied to the proposed system and is used in an experiment performed to verify the validity of its function.
Functional Imaging of Human Epidermal Growth Factor Receptor 2–Positive Metastatic Breast Cancer Using <sup>64</sup>Cu-DOTA-Trastuzumab PET (2013)

(64)Cu-DOTA-trastuzumab visualizes HER2-positive metastatic breast cancer with high sensitivity and is effective in surveying disseminated disease. A 45-mg trastuzumab predose provides a (64)Cu-DOTA-trastuzumab biodistribution favorable for tumor imaging. (64)Cu-DOTA-trastuzumab PET/CT warrants further evaluation for assessing tumor HER2 expression and individualizing treatments that include trastuzumab.
Vulvodynia: a neuroinflammatory pain syndrome originating in pelvic visceral nerve plexuses due to mechanical factors (2022)

This short opinion aimed to present the evidence to support our hypothesis that vulvodynia is a neuroinflammatory pain syndrome originating in the pelvic visceral nerve plexuses caused by the failure of weakened uterosacral ligaments (USLs) to support the pelvic visceral nerve plexuses, i.e., T11-L2 sympathetic and S2-4 parasympathetic plexuses. These are supported by the USLs, 2 cm from their insertion to the cervix. They innervate the pelvic organs, glands, and muscles. If the USLs are weak or lax, gravitational force or even the muscles may distort and stimulate the unsupported plexuses. Inappropriate afferent signals could then be interpreted as originating from an end-organ site. Activation of sensory visceral nerves causes a neuro-inflammatory response in the affected tissues, leading to neuroproliferation of small peripheral sensory nerve fibers, which may cause hyperalgesia and allodynia in the territory of the damaged innervation. Repair of the primary abnormality of USL laxity, responsible for mechanical stimulation of the pelvic sensory plexus, may lead to resolution of the pain syndrome.
Recent Developments towards Control-Based Color Profiling Technology (2009)

In this paper we describe the advances made in high accuracy, high performance destination color profiling technology for use in digital printers. A profiling technology, configured to produce (a) an initial estimate in the factory of a fine tuned GCR strategy and gain matrices as starting LUTs, and (2) a runtime profiling technology for adjusting colors before production run by the customer on a drifted print engine. Key new algorithms presented are: Co-operative Neighbor Driven Gray Component Replacement (GCR) algorithm and control-based inversion. These algorithms are used with other known suite of algorithms to make a complete practical profiling technology.
Experimental and numerical investigations on asymmetric fused fibre couplers consisting of different single-mode fibres (2013)

Fused fibre couplers (FFCs) are essential components in fibre-based laser and amplifier systems for combining the pump and signal wavelengths into one fibre. Typically, identical fibres are employed in FFCs, which limits the combinable wavelengths to above the cutoff of the fibre. An approach for coupling two widely separated wavelengths is the use of different fibres with single mode guidance for the respective wavelength [1]. Due to the asymmetry introduced by the different fibres a special technique is necessary, for example pre-tapering one fibre before coupler fabrication, in order to achieve a high coupling ratio.
3-D particle tracking with two-photon excitation: Instrumentation and statistical analysis of results (1999)

We have extended the reach of single particle tracking (SPT) by implementing a 3-D SPT system on the two-photon fluorescent microscope.Our system utilizes an x-y galvanometer scanner and a piezo driven z-stage, both under feedback control.This poster analyzes the 3-D trajectories obtained for particles in both homogeneous media and inhomogeneous media, such as the fractal environment of agarose gels.We present the results of these trajectories and analyze the distribution of diffusion coefficients obtained for each axis, and provide criteria to classify the various motional modes observed.We provide Monte Carlo calculations for comparison.We also investigate what effect artifacts, such as vibrations, will have on the results.In addition, we discuss the applicability of this technique in the investigation of various biological systems by addressing the trade-off between the frequency response and the accuracy of the determination of particle position.Finally, we consider alternatives to a simple raster scan (for example, resonant-mode scanning) and how these alternative scanning procedures impact the performance of the instrument.
Multiple Excitation Pulse, Multiple Probe Pulse Femtosecond Spectroscopy (1992)

The use of multiple femtosecond excitation pulses for increased control over material behavior has been demonstrated experimentally 1−3 and also discussed at some length theoretically 4 . Applications demonstrated to date include vibrational amplification in crystal lattices and manipulation of molecular electronic and vibrational coherences. One of the primary goals is increased control over chemical or structural rearrangements. Some of the experimental challenges involved include electronic and vibrational dephasing, which limit the extent to which the effects of the first pulse in a sequence are "remembered" by a sample as additional pulses arrive, and unwanted optical effects which lead to unwanted material responses or even sample damage and which limit the light intensity that can be used.
Supplementary Figures and Tables from ATF6-Mediated Signaling Contributes to PARP Inhibitor Resistance in Ovarian Cancer (2023)

&lt;p&gt;Table S1 - Antibody Details Table S2 - Primer Sequences Table S3 - AP1 shRNA Screen Details Table S4 - Patient Characteristics from Tissue Microarray Table S5 - Transcription factor overlap Figure S1 - Dose response, AP1 activity and AP1 subunit expression. Figure S2 - ATF6 Immunohistochemistry, KM Curve, and AP1 transcriptional targets Figure S3 - P38 Inhibitor Dose Response Figure S4 - DNA Damage in OVCA420 cell line and qPCR expression of BRCA1 and PARP1 Figure S5 - Controls for animal study&lt;/p&gt;
High-speed optical studies of long spark (Istra, Russia) and triggered lightning (Camp Blanding, Florida): initial results (2003)

Experimental results on classical long spark development optically studied in July-August, 2002 at the High Voltage Research Center (HVRC), Istra, Russia have been presented. Main goal of these studies was to test universal streak and framing cameras K004M and K008 developed by the BIFO Company, Russia for the University of Florida, USA to be used at the International Center for Lightning Research and Testing (ICLRT) at Camp Blanding, Florida. Both cameras were tested at the conditions (solid angles, spatial and time resolution, sensitivity etc.) being like as much as possible to those expected in actual triggered-lightning experiments at Camp Blanding. Basic results on testing have been found to give hope well enough for the triggered-lightning research. Additionally to the testing, some features of long spark development in different stages have been studied using up to three devices operated synchronously. In combination with two cameras pointed out above, an old analog image converter streak camera of FER14-type (designed in 1980 by the VNIIOFI, Moscow as requested by the All-Union Electrotechnical Institute, Istra) instrumented with a novel CCD readout system SU04-type (designed by the BIFO Company) was being used. This combined system FER14+SU04 has been found to operate well enough too. Some experimental results with pictures presented expand available data and current knowledge on electrical discharge in large air gaps.
Divide and correct (2014)

In comparison to multiple choice or other recognition-oriented forms of assessment, short answer questions have been shown to offer greater value for both students and teachers; for students they can improve retention of knowledge, while for teachers they provide more insight into student understanding. Unfortunately, the same open-ended nature which makes them so valuable also makes them more difficult to grade at scale. To address this, we propose a cluster-based interface that allows teachers to read, grade, and provide feedback on large groups of answers at once. We evaluated this interface against an unclustered baseline in a within-subjects study with 25 teachers, and found that the clustered interface allows teachers to grade substantially faster, to give more feedback to students, and to develop a high-level view of students' understanding and misconceptions.
A fault-tolerant PMSG drive for wind turbine applications with minimal increase of the hardware requirements (2013)

Fault-tolerant permanent magnet synchronous generator (PMSG) drives for wind turbine applications play a major role in improving reliability and availability levels, since power converters are very prone to fail. In this paper, a fault-tolerant converter with the ability to handle power switch open-circuit faults is addressed. The main concern of proposed converter topology is the minimization of the hardware requirements, leading to a low increase of the system cost. Firstly, the employed fault diagnostic technique does not require additional measurements, nor high computational effort. Secondly, the circuit topology reconfiguration implies a minimum number of extra components as well as minimal oversizing of the standard ones. Accordingly, a four-switch three-phase converter with the dc bus midpoint connected to the transformer neutral point and a three-switch three-phase rectifier are adopted for post-fault operation of the grid- and PMSG-side converters, respectively. Vector control strategies are proposed for both converters under analysis, focusing the issues of capacitor voltages balancing and torque ripple minimization. The performance of the proposed fault-tolerant PMSG drive is analyzed by means of experimental results.
Carbon Dioxide Hydrosilylation to Methane Catalyzed by Zinc and Other First-Row Transition Metal Salts (2019)

Abstract We accomplished zinc catalyzed hydrosilylation of carbon dioxide (CO2) to silyl formate (C+II), bis(silyl)acetal (C0), methoxysilane (C−II), and finally methane (C−IV). Among several zinc salts, we found that Zn(OAc)2 with ligand 1,10-phenanthroline was the best. A turnover number of 815000 was achieved using the zinc catalyst to yield C+II. Unexpectedly, we observed the generation of CO from CO2 and hydrosilane for the first time. In addition to Zn, other first-row transition metals (Mn, Fe, Co, Ni, and Cu) also served as Lewis acid catalysts for CO2 hydrosilylation, regardless of the nature of the metal.
Data-driven shared decision-making on cancer treatment (2019)

This poster gives an overview of the current NWO data2person project on data-driven shared decision making for cancer patients. Currently, (1) three systematic reviews have been carried out, (2) a prediction model for quality of life outcomes was created using latent-class analysis, (3) a prototype data-to-text system explaining these outcomes was developed and (4) a questionnaire measuring patients' information preferences with respect to personalized statistics is constructed.
Biosynthesis of the lantibiotic Pep5 (1990)

Pep5 is a tricyclic peptide antibiotic which contains the unusual amino acids dehydrobutyrine, lanthionine and 3-methyllanthionine. It is matured from a 60-amino-acid precursor peptide (pre-Pep5) deduced from the sequence of the structural gene pepA. To study the biosynthesis of Pep5 we tried to isolate the primary translation product. We identified a peptide in crude extracts of the Pep5-producing Staphylococcus epidermidis strain using antibodies raised against a synthetic 26-residue peptide representing the leader peptide region of pre-Pep5. The putative precursor was purified by reversed-phase HPLC. The isolated peptide did not react with antibodies directed against a C-terminal fragment of mature Pep5 containing two sulfide bridges. Neither lanthionine nor 3-methyllanthionine was detected in amino acid analysis of the isolated precursor. Its amino acid sequence was identical with the sequence predicted from pepA, but Edman degradation stopped at the first threonine residue of the prolantibiotic region indicating a posttranslational modification at this position. The molecular mass of the isolated peptide was 6575.4 +/- 1.7 Da, determined by ion-spray mass spectrometry. This is in agreement with a molecule being dehydrated at the four threonine and the two serine residues in the propeptide region; such a peptide has a calculated molecular mass of 6576.7 Da. The results strongly suggest that maturation of the lantibiotic Pep5 is initiated by selective dehydration of hydroxyamino acids in the propeptide region of the primary translation product and that thioether ring formation is not closely linked to dehydration.
Toward Understanding the Mechanism of Wine Oxidation (2021)

The electronic configuration of oxygen (O<sub>2</sub>) does not allow it to react directly with wine reductants such as polyphenols. It relies on the catalytic intervention of iron (Fe), which redox cycles between its ferrous (Fe(II)) and ferric (Fe(III)) states. O<sub>2</sub> oxidizes Fe(II) to Fe(III), and Fe(III) then oxidizes polyphenols. Low concentrations of copper accelerate oxidation, and nucleophiles, especially sulfite, promote polyphenol oxidation. In wine that is protected from air, Fe exists mainly as Fe(II), but the Fe(III):Fe(II) concentration ratio increases immediately on air exposure, stabilizing at varying speeds and values. The oxidation of Fe(II) in air-saturated model wine and the reduction of Fe(III) by a catechol under nitrogen in model wine were examined separately to better understand the oxidative process. The Fe(III) produced when Fe(II) reacted with O<sub>2</sub> slows the reaction. As in wine, it was important to include sulfite to remove the intermediate hydrogen peroxide, which also oxidizes Fe(II). The reaction was pseudosecond-order in Fe(II), indicating that the transfer of both electrons to O<sub>2</sub> is rate determining. Similarly, when Fe(III) was reduced by the catechol, the Fe(II) produced inhibited the reaction, which overall followed a pseudosecond-order rate law in Fe(III). The rate of Fe(II) oxidation was slower than the rate of Fe(III) reduction, but when the reactions occurred together, as in wine oxidation, Fe(III) and Fe(II) concentrations equilibrated such that their rates equalized. Under the conditions studied, this occurred at 32% Fe(III). This equilibrium was attained quickly, as is the case in red wine. These findings on the oxidative process should help explain the relationships between wine composition, redox state, and Fe(III):Fe(II) concentration ratios.
Pore-Scale Redistribution of Water during Wetting of Air-Dried Soils As Studied by Low-Field NMR Relaxometry (2003)

The kinetics of water uptake and redistribution in several soils and their components are studied using NMR relaxometry. Unlike the normal behavior observed in stable porous media, entry into micropores in the soil is a slow process as compared to entry into macro- and mesopores. This indicates that soils air-dried at ambient temperature include gel phases that have collapsed or reoriented, closing micropores, during drying. Wetting must then include the swelling processes that re-open micropores. This can even exhibit temperature dependence giving an "apparent activation energy" comparable to that of a chemical reaction, for example, ester hydrolysis. The processes of micropore opening may play a role in slow uptake of contaminants into soils.
Fourier domain optical coherence tomography and digital algorithm for dispersion compensation (2017)

Get PDF Email Share Share with Facebook Tweet This Post on reddit Share with LinkedIn Add to CiteULike Add to Mendeley Add to BibSonomy Get Citation Copy Citation Text C. Lee, P. N. Yang, L. Tsai, and H. Y. Lin, "Fourier domain optical coherence tomography and digital algorithm for dispersion compensation," in Conference on Lasers and Electro-Optics, OSA Technical Digest (online) (Optica Publishing Group, 2017), paper JW2A.49. Export Citation BibTex Endnote (RIS) HTML Plain Text Citation alert Save article
Design and characterization of a multi-vapor preconcentrator for a micro-scale gas chromatograph (2009)

This dissertation addresses several elements critical to the design and implementation of adsorbent-packed micro-scale preconcentrator/focuser (PCF) intended for integration into a microfabricated gas chromatograph (GC). Assessment of the adsorption of volatile organic compounds (VOCs) on two commercial graphitized carbons at air concentrations in the parts-per-billion (ppb) range in the context of the Dubinin-Radushkevich (DR) isotherm model revealed an unusual bi-modal distribution of characteristic adsorption energies for most vapors. Systematic trends in observed VOC behaviors on these non-microporous adsorbents are rationalized in terms of the volatility and polarity of the adsorbates, and the relative strength of adsorbate-absorbent interactions over different ranges of surface coverage. The attempt to apply the DR model at such low VOC concentrations is unprecedented, and the results highlight several constraints on its applicability for estimating the mass of adsorbent required for efficient PCF performance. The effect of flow velocity on the capacity of an adsorbent-packed PCF containing ~1 mg of adsorbent was characterized along with a similarly packed device of a more conventional design. It was shown for two representative vapors that below a bed residence time of 4 msec, corresponding to volumetric flow rates of 30 mL/min, fractional breakthrough occurred almost immediately. The critical bed residence time differed between the vapors in a predictable manner, and guidelines were established on the basis of these results for limiting the operational flow rates of PCFs. Using the conventional PCF a series of tests was then performed to explore the capacity of the device upon exposure to binary mixtures comprising vapors with different volatility and structure. Comparison of the results with those expected on the basis of recently developed models derived from larger adsorbent beds revealed significant discrepancies, which suggests that improvements to such models are needed; however several factors were revealed that may facilitate future efforts to improve the models. These first attempts to verify the application of established thermodynamic and kinetic models of adsorption to PCFs containing low-mg quantities of adsorbents have produced important results critical to their design and implementation in microanalytical systems for VOC mixtures.
Absorption, fluorescence, and electron spin resonance investigation of tervalent cerium activated LaMgAl11O19 (1988)

Single crystals of the magnetoplumbite (MP)-like compounds La1−xCex MgAl11O19 (0≤x≤1) have been grown from the melt by the flame fusion method. These crystals have been characterized by optical absorption and fluorescence which occur between 4f and 5d levels as well as by electron spin resonance at 20 K. For dilute samples (x≤0.15) all of these studies agree with a distribution of cerium between two kinds of sites with C2v point symmetry but with different optical spectroscopic properties whose occupation depends on the cerium content (x value). There is no evidence of any cerium in the regular MP lanthanide site with D3h symmetry. Several structural models which could account for these results are discussed.
Increases in tissue Pco2 during circulatory shock reflect selective decreases in capillary blood flow* (2006)

These observations suggest that microcirculatory failure in capillaries appears as an early defect in close association with anaerobic metabolism during progression of circulatory shock in an animal model of septic peritonitis.
Characterization of T-Cell Responses to Conserved Regions of the HIV-1 Proteome in BALB/c Mice (2014)

A likely requirement for a protective vaccine against human immunodeficiency virus type 1 (HIV-1)/AIDS is, in addition to eliciting antibody responses, induction of effective T cells. To tackle HIV-1 diversity by T-cell vaccines, we designed an immunogen, HIVconsv, derived from the most functionally conserved regions of the HIV-1 proteome and demonstrated its high immunogenicity in humans and rhesus macaques when delivered by regimens combining plasmid DNA, nonreplicating simian (chimpanzee) adenovirus ChAdV-63, and nonreplicating modified vaccinia virus Ankara (MVA) as vectors. Here, we aimed to increase the decision power for iterative improvements of this vaccine strategy in the BALB/c mouse model. First, we found that prolonging the period after the ChAdV63.HIVconsv prime up to 6 weeks increased the frequencies of HIV-1-specific, gamma interferon (IFN-γ)-producing T cells induced by the MVA.HIVconsv boost. Induction of strong responses allowed us to map comprehensively the H-2(d)-restricted T-cell responses to these regions and identified 8 HIVconsv peptides, of which three did not contain a previously described epitope and were therefore considered novel. Induced effector T cells were oligofunctional and lysed sensitized targets in vitro. Our study therefore provides additional tools for studying and optimizing vaccine regimens in this commonly used small animal model, which will in turn guide vaccine improvements in more expensive nonhuman primate and human clinical trials.