gebhart/patrepeval huggingface dataset:
System-level throughput evaluation of multiuser MIMO using enhanced codebook considering user mobility in LTE-Advanced downlink (2014)

In LTE-Advanced downlink, multiuser (MU)-MIMO transmission with closed-loop precoding matrix indicator (PMI) selection and use of interference suppression ability of mobile station (MS) receiver are promising technologies to improve spectrum efficiency. In this paper, we investigate the throughput performance of a proposed MU-MIMO codebook that contains amplitude control information in addition to the phase control information. In system-level simulations, the impacts of the MS speed on the closed-loop control and the difference in the MIMO receiver capabilities for inter-user interference suppression are evaluated considering the overhead for different transmission modes (TMs). The simulation results show that the minimum mean square error (MMSE) receiver for inter-user interference suppression is necessary to obtain stable MU-MIMO performance gains irrespective of the MS mobility. The results also show that LTE TM 9, i.e., dynamic switching between single-user (SU)-MIMO and MU-MIMO, combined with the proposed codebook improves cell-average (cell-edge) throughput performance by approximately 10% (20%), compared to TM 4 with the Release 8 4-Tx codebook.
Executing Boolean Queries on an Encrypted Bitmap Index (2016)

We propose a simple and efficient searchable symmetric encryption scheme based on a Bitmap index that evaluates Boolean queries. Our scheme provides a practical solution in settings where communications and computations are very constrained as it offers a suitable trade-off between privacy and performance.
Region-based segmentation on evolving surfaces with application to 3D shape and radiance estimation (2004)

Region-based Segmentation on Evolving Surfaces with Application to 3D Reconstruction of Shape and Piecewise Constant Radiance Hailin Jin 1 , Anthony J. Yezzi 2 , and Stefano Soatto 1 Computer Science Department, University of California, Los Angeles, CA 90095, hljin,soatto@cs.ucla.edu School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA 30332, ayezzi@ece.gatech.edu Abstract. We consider the problem of estimating the shape and radi- ance of a scene from a calibrated set of images under the assumption that the scene is Lambertian and its radiance is piecewise constant. We model the radiance segmentation explicitly using smooth curves on the surface that bound regions of constant radiance. We pose the scene re- construction problem in a variational framework, where the unknowns are the surface, the radiance values and the segmenting curves. We pro- pose an iterative procedure to minimize a global cost functional that combines geometric priors on both the surface and the curves with a data ﬁtness score. We carry out the numerical implementation in the level set framework. Keywords: variational methods, Mumford-Shah functional, image segmen- tation, multi-view stereo, level set methods, curve evolution on manifolds. Fig. 1. (COLOR) A plush model of “nemo.” The object exhibits piecewise constant appearance. From a set of calibrated views, our algorithm can estimate the shape and the piecewise constant radiance. Introduction Inferring three-dimensional shape and appearance of a scene from a collection of images has been a central problem in Computer Vision, known as multi- view stereo. Traditional approaches to this problem ﬁrst match points or small
Organo-f-element catalysts for efficient and highly selective hydroalkoxylation and hydrothiolation (2010)

Lanthanide and actinide catalysts have made significant contributions to many areas of homogeneous catalysis with hydroelementation of C-C unsaturation being a notable area of success. In this Perspective, we review recent advances in f-element hydroelementation for highly selective hydroalkoxylation and hydrothiolation processes. As will be discussed, f-element hydroalkoxylation and hydrothiolation catalysts exhibit selectivities unobtainable by many late transition metal complexes. First, we review lanthanide-mediated hydroalkoxylation processes with mechanistic, thermodynamic, and kinetic considerations discussed, and then compare/contrast them with analogous C-N and C-P bond-forming transformations. In addition, computational studies are discussed which provide further insight into this transformation and the observed selectivities. Next, actinide-mediated alkyne hydrothiolation is reviewed with a similar discussion of reactivity, mechanism, and thermodynamics.
Synthesis and Pharmacological Characterization of a Difluorinated Analogue of Reduced Haloperidol as a Sigma-1 Receptor Ligand (2023)

Reduced haloperidol (<b>1</b>) was previously reported to act as a potent sigma-1 receptor (S1R) ligand with substantially lower affinity to the dopamine D2 receptor (D2R) compared to haloperidol. It was also found to facilitate brain-derived neurotrophic factor (BDNF) secretion from astrocytic glial cell lines in a sigma-1 receptor (S1R)-dependent manner. Although an increase in BDNF secretion may have beneficial effects in some neurological conditions, the therapeutic utility of reduced haloperidol (<b>1</b>) is limited because it can be oxidized back to haloperidol in the body, a potent dopamine D2 receptor antagonist associated with well-documented adverse effects. A difluorinated analogue of reduced haloperidol, (±)-4-(4-chlorophenyl)-1-(3,3-difluoro-4-(4-fluorophenyl)-4-hydroxybutyl)piperidin-4-ol (<b>2</b>), was synthesized in an attempt to minimize the oxidation. Compound (±)-<b>2</b> was found to exhibit high affinity to S1R and facilitate BDNF release from mouse brain astrocytes. It was also confirmed that compound <b>2</b> cannot be oxidized back to the corresponding haloperidol analogue in liver microsomes. Furthermore, compound <b>2</b> was distributed to the brain following intraperitoneal administration in mice and reversed the learning deficits in active avoidance tasks. These findings suggest that compound <b>2</b> could serve as a promising S1R ligand with therapeutic potential for the treatment of cognitive impairments.
Scheduling parallel implementations of partitioned orthogonal transformations (1992)

Orthogonal matrix transformations form an important part of matrix-based signal processing applications. Systolic arrays for computing these algorithms have been developed and the size of these arrays usually depends directly on the size of the problem. For large matrix sizes, implementing large numbers of processors in hardware is not physically feasible. In this paper, we examine two popular orthogonal transformations, Givens rotations and householder transformations (HT), from the viewpoint of realizing a fixed-size parallel processor array that can handle large data matrices. An efficient scheduling procedure is used to compute the HT on a systolic type array, its performance is compared with that of an array designed for computing the Givens method. An important conclusion resulting from the comparison is that the performance of the HT array is superior to that for the Givens method when the matrices are larger compared to the array size.
Haptic Implications of Tool Flexibility in Surgical Teleoperation (2008)

In space and surgical robotics applications, the desire is to use thin and lightweight manipulators and cable-driven end-effectors. This, however, introduces joint and/or link flexibility in the slave robot of a master-slave teleoperation system, reducing the effective stiffness of the slave and the transparency of teleoperation. Here, we analyze teleoperation transparency and stability under slave joint and link flexibility (tool flexibility) and evaluate the added benefits of using extra sensors at the tip of the flexible slave. One of the results of this paper is that tip velocity feedback can eliminate the display of joint or link flexibility to the user during a hard contact task.
<title>Image quality assessment with a Gabor pyramid model of the human visual system</title> (1997)

Reliable image quality assessments are necessary for evaluating digital imaging methods (halftoning techniques) and products (printers, displays). Typically the quality of the imaging method or product is evaluated by comparing the fidelity of an image before and after processing by the imaging method or product. It is well established that simple approaches like mean squared error do not provide meaningful measures of image fidelity. A number of image fidelity metrics have been developed whose goal was to predict the amount of differences that would be visible to a human observer. In this paper we outline a new model of the human visual system (HVS) and show how this model can be used in image quality assessment. Our model departs from previous approaches in three ways: (1) We use a physiologically and psychophysically plausible Gabor pyramid to model a receptive field decomposition; (2) We use psychophysical experiments that directly assess the percept we wish to model; and (3) We model discrimination performance by using discrimination thresholds instead of detection thresholds. The first psychophysical experiment tested the visual system's sensitivity as a function of spatial frequency, orientation, and average luminance. The second experiment tested the relation between contrast detection and contrast discrimination.
Nanocellulose Hydrogel for Blood Typing Tests (2019)

The gel test is the most prevalent method for the forward and reverse blood typing tests. It relies on the controlled centrifugation of red blood cells (RBCs) and antibodies through a gel column. This noncontinuous matrix is currently based on microbeads that often lack sensitivity. For the first time, nanocellulose hydrogel is demonstrated as a sustainable and reliable medium for gel-based blood typing diagnostics. Gels with a minimum of 0.3 wt % TEMPO-oxidized cellulose nanofibers (0.92 mmol/g of carboxyl content) separate agglutinated and individual RBCs in the forward test. The addition of glycine is able to balance the osmotic pressure and reduce hemolysis to 5%, while retaining the electrostatic repulsion responsible for the gel network structure and its rheological properties. For the reverse typing, cellulose nanofibers are chemically cross-linked with hexamethylenediamine (HMDA), increasing the gel yield point 8-fold. Sodium chloride is added to achieve the osmolality found in the human plasma and limit cell lysis to 15%, without affecting the gel colloidal stability. Nanocellulose hydrogel constitutes a performant, low cost, and green soft material, providing clear and well-defined results for both blood grouping tests.
New strategies for coordinated control in power distribution grids &#x2014; Effective integration of photovoltaic plants utilizing sensitivity analysis (2013)

This investigation aims at providing recommendations to distribution system operators on how to effectively integrate photovoltaic plants in the distribution network. The focus is laid on utilizing the sensitivity analysis to coordinate voltage control and optimize the total reactive power required. Furthermore novel strategies are introduced for an effective use of the reactive power capability of PV plants. The main goal is to pave the way for system operators to use PV plants for operation management purposes by means of integrating them in their SCADA system.
Developmentally‐Inspired Shrink‐Wrap Polymers for Mechanical Induction of Tissue Differentiation (2014)

A biologically inspired thermoresponsive polymer has been developed that mechanically induces tooth differentiation in vitro and in vivo by promoting mesenchymal cell compaction as seen in each pore of the scaffold. This normally occurs during the physiological mesenchymal condensation response that triggers tooth formation in the embryo.
An ultrawideband photonic crystal antenna (2002)

We present the development of a novel ultrawideband antenna structure that uses photonic crystals as a substrate to reflect the energy normally trapped within a substrate into free space. Photonic crystals are three-dimensional periodic structures that exhibit spatial three-dimensional filter properties. In order to achieve an ultrawideband photonic crystal, two photonic crystals with different periodicities are stacked in tandem. The stop band of the photonic crystal is used as a distributed reflector of a short pulse that is generated at the surface of the crystal by photoconductively switched planar antennas.
Ultrasensitive fluorescence detection of DNA (1991)

Progress on Ultrasensitive fluorescence detection of DNA is briefly described. (CBS)
Multi-scale quantum point contact model for filamentary conduction in resistive random access memories devices (2014)

We depart from first-principle simulations of electron transport along paths of oxygen vacancies in HfO2 to reformulate the Quantum Point Contact (QPC) model in terms of a bundle of such vacancy paths. By doing this, the number of model parameters is reduced and a much clearer link between the microscopic structure of the conductive filament (CF) and its electrical properties can be provided. The new multi-scale QPC model is applied to two different HfO2-based devices operated in the unipolar and bipolar resistive switching (RS) modes. Extraction of the QPC model parameters from a statistically significant number of CFs allows revealing significant structural differences in the CF of these two types of devices and RS modes.
Organization of hierarchical perceptual sounds: music scene analysis with autonomous processing modules and a quantitative information integration mechanism (1995)

We propose a process model for hierarchical perceptual sound organization, which recognizes perceptual sounds included in incoming sound signals. We consider perceptual sound organization as a scene analysis problem in the auditory domain. Our model consists of multiple processing modules and a hypothesis network for quantitative integration of multiple sources of information. When input information for each processing module is available, the module rises to process it and asynchronously writes output information to the hypothesis network. On the hypothesis network, individual information is integrated and an optimal internal model of perceptual sounds is automatically constructed. Based on the model, a music scene analysis system has been developed for acoustic signals of ensemble music, which recognizes rhythm, chords, and source-separated musical notes. Experimental results show that our method has permitted autonomous, stable and effective information integration to construct the internal model of hierarchical perceptual sounds. 1
<title>Estimation of surface shape from endoscopic image sequence</title> (1993)

In this paper, an approach is presented for 3-D surface shape estimation from monocular endoscopic images. The algorithms uses image sequence that are taken by shifting camera. In the first stage, the camera movements are estimated and the surface shape is roughly estimated by a method that is similar to stereo vision. In the second stage, the surface shape is refined by a multiview method. This multiview system selects several images from the image sequence and determines the corresponding view positions. Since each view contains noise, the algorithm solves for the depth distribution by minimizing an energy function such that all regions of several images are matched as close as possible in a least square sense while a smoothness constraint is applied on the solution. The contribution ratio of each view to the estimation is controlled by a weighting function that is decided depending on the geometric relationship between the surface point and each viewpoint. Principle of the method and experimental results are presented.
Seeing through Bone with Surface-Enhanced Spatially Offset Raman Spectroscopy (2013)

Surface-enhanced spatially offset Raman spectroscopy (SESORS) is a label-free vibrational spectroscopy that has the potential for in vivo imaging. Previous SESORS experiments have been limited to acquiring spectra using SERS substrates implanted under the skin or from nanoparticles embedded in tissue. Here we present SESORS measurements of SERS active nanoparticles coated with a Raman reporter molecule (nanotags) acquired, for the first time, through bone. We demonstrate the ability of SESORS to measure spectra through various thicknesses (3-8 mm) of bone. We also show that diluted nanotag samples (~2 × 10(12) particles) can be detected through the bone. We apply a least-squares support vector machine analysis to demonstrate quantitative detection. It is anticipated that these through-bone SESORS measurements will enable real-time, non-invasive spectroscopic measurement of neurochemicals through the skull, as well as other biomedical applications.
1225: RATIO OF PATIENTS’ INSPIRATORY FLOW TO HFNC FLOW: A KEY IN AEROSOL DELIVERY TO INFANTS AND TODDLERS (2018)

1Rush University Medical Center, Chicago, IL 2Rush University Medical Center & Aerogen Pharma Corp, San Mateo, CA
One-dimensional analytical modeling of the VDMOS transistor taking into account the thermoelectrical interactions (2002)

We have developed an analytical one-dimensional thermoelectrical model for the power MOSFET transistor, implemented in the SABER circuits simulator, in which the device's temperature becomes an interactive variable during the simulation. The accuracy of the model is improved with an electrical and thermal characterization, and two validation circuits.
Medical Management of Kidney Stones: AUA Guideline (2014)

A variety of medications and dietary measures have been evaluated with greater or less rigor for their efficacy in reducing recurrence rates in stone formers. The guideline statements offered in this document provide a simple, evidence-based approach to identify high-risk or interested stone-forming patients for whom medical and dietary therapy based on metabolic testing and close follow-up is likely to be effective in reducing stone recurrence.
Optical third-harmonic generation in polyacetylene (1989)

Third-harmonic generation experiments have been performed on fully oriented crystalline ItransR-(CH${)}_{\mathrm{x}}$ Rat two laser wavelengths: 1.064 and 1.907 \ensuremath{\mu}m. Theoretical analysis of third-harmonic generation in a semiconductor slab is presented which allows the extraction of the electronic third-order susceptibility from the experiments. A simple method was used for the elimination of environmental effects on the measurements. The third-order susceptibilities obtained are \ensuremath{\Vert}${\ensuremath{\chi}}_{\mathrm{xxxx}}^{(3)}$(\ensuremath{\omega},\ensuremath{\omega},\ensuremath{\omega}) ${\mathrm{\ensuremath{\Vert}}}_{\ensuremath{\lambda}=1.064\phantom{\rule{0ex}{0ex}}\mathrm{\ensuremath{\mu}}\mathrm{m}}$=(9\ifmmode\pm\else\textpm\fi{}4) \ifmmode\times\else\texttimes\fi{}${10}^{\mathrm{\ensuremath{-}}9}$ esu and \ensuremath{\Vert}${\ensuremath{\chi}}_{\mathrm{xxxx}}^{(3)}$(\ensuremath{\omega},\ensuremath{\omega},\ensuremath{\omega}) ${\mathrm{\ensuremath{\Vert}}}_{\ensuremath{\lambda}=1.907\phantom{\rule{0ex}{0ex}}\mathrm{\ensuremath{\mu}}\mathrm{m}}$ =(1.7\ifmmode\pm\else\textpm\fi{}0.7)\ifmmode\times\else\texttimes\fi{}${10}^{\mathrm{\ensuremath{-}}8}$ esu, representing exceptionally high values compared to other organic and inorganic semiconductors.
Advances in Immersion Related Defectivity on XT:1250i at IMEC (2006)

The immersion-specific watermark defect is discussed in its formation mechanism and in the influence of materials and exposure process. The non-topcoat approach was the basis of the work, where the properties of resist surface itself played the key role. Water droplets left on the resist surface were considered to induce the watermark defect in two possible ways; (1) the droplet is carried over to PEB process and impact the resist properties under the heat, (2) the droplet already evaporates before the PEB leaving some residue on the surface. A notable reduction in the resist dissolution rate was observed in the former case, which could be due to either physical or chemical change in the resist materials triggered by the water, and thereby would result in an unavoidable patterning failure. Therefore it is essential not to leave any water droplets on the surface in preventing the watermark formation. A very much hydrophobic materials design was proven effective in achieving this. The watermark formation was correlated to the scanning speed of immersion showerhead and the defectivity was evaluated in this perspective. The receding contact angle of the resist surface was found to well correlate to the "allowable" scanning speed, and was concluded that the higher was the better. A resist material was newly designed by using a hydrophobic polymer on this basis and the resist demonstrated a promising results not only in the watermark defectivity but also in lithographic performance.
Palladium-Catalyzed Synthesis of Functionalized Tetraarylphosphonium Salts (2007)

An efficient method to synthesize functionalized tetraarylphosphonium salts is described. This palladium-catalyzed coupling reaction between aryl iodides, bromides, or triflates and triphenylphosphine generates phosphonium salts in high yields. The coupling is compatible with a variety of functional groups such as alcohols, ketones, aldehydes, phenols, and amides.
Melting, crystallization, and solution behavior of chain molecules with hydrocarbon and fluorocarbon segments (1988)

Abstract Melting, crystallization, and solution behavior of n ‐alkanes with fluorocarbon segments of twelve carbon atoms on one end, F(CF 2 ) 12 (CH 2 ) n H, or on both ends, F(CF 2 ) 12 (CH 2 ) n (CF 2 ) 12 F were investigated by DSC, MAS 13 C NMR, light scattering, and birefringence studies. Both triblock F(CF 2 ) m (CH 2 ) n (CF 2 ) m F and diblock F(CF 2 ) 12 (CH 2 ) n H compounds with 4 ≦ n ≦ 14 melt by a two‐step process. In the first step, the alkyl segment conformations gain nearly liquid like trans/ gauche ratios, while the perfluorinated segments remain ordered. “Gels” which incorporate the entire solvent are formed by crystallization from even dilute solutions of hydrocarbon and fluorocarbon solvents. The gels are built up of extremely long, interdigitated needles of the pure solute. Due to the bilayer structures and different degrees of ordering of the hydrocarbon and the fluorocarbon segments, the crystals grow preferentially in the direction parallel to the lamellar surface. Light scattering experiments in octane demonstrated the formation of micelle type associates.
Supplementary Methods from A 12-Gene Set Predicts Survival Benefits from Adjuvant Chemotherapy in Non–Small Cell Lung Cancer Patients (2023)

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NIKA 2: next-generation continuum/polarized camera at the IRAM 30 m telescope and its prototype (2016)

NIKA 2 (New Instrument of Kids Array) is a next generation continuum and polarized instrument successfully installed in October 2015 at the IRAM 30 m telescope on Pico-Veleta (Granada, Spain). NIKA 2 is a high resolution dual-band camera, operating with frequency multiplexed LEKIDs (Lumped Element Kinetic Inductance Detectors) cooled at 100 mK. Dual color images are obtained thanks to the simultaneous readout of a 1020 pixels array at 2 mm and 1140 x 2 pixels arrays at 1.15 mm with a final resolution of 18 and 12 arcsec respectively, and 6.5 arcmin of Field of View (FoV). The two arrays at 1.15 mm allow us to measure the linear polarization of the incoming light. This will place NIKA 2 as an instrument of choice to study the role of magnetic fields in the star formation process. The NIKA experiment, a prototype for NIKA 2 with a reduced number of detectors ( 400 LEKIDs) and FoV (1.8 arcmin), has been successfully operated at the IRAM 30 telescope in several open observational campaigns. The performance of the NIKA 2 polarization setup has been successfully validated with the NIKA prototype.