gebhart/patrepeval huggingface dataset:
iMecho (2009)

Traditional desktop search engines only support keyword based search that needs exact keyword matching to find resources. However, users generally have a vague picture of what is stored but forget the exact location and keywords of the resource. According to observations of human associative memory, people tend to remember things from some memory fragments in their brains and these memory fragments are connected by memory cues of user activity context. We developed iMecho (My Memory Echo), an associative memory based desktop search system, which exploits such associations and contexts to enhance traditional desktop search. Desktop resources are connected with semantic links mined from explicit and implicit user activities according to specific access patterns. Using these semantic links, associations among memory fragments can be built or rebuilt in a user's brain during a search. Moreover, our personalized ranking scheme uses these links together with a user's personal preferences to rank results by both relevance and importance to the user. In addition, the system provides a faceted search feature and association graph navigation to help users refine and associate search results generated by full-text keyword search. Our experiments investigating precision and recall quality of iMecho prototype show that the association-based search system is superior to the traditional keyword search in personal search engines since it is closer to the way that human associative memory works.
Feedback write scheme for memristive switching devices (2011)

In nanoscale memristive switching devices, the statistical distribution of resistance values and other relevant parameters for device operation often exhibits a lognormal distribution, causing large fluctuations of memristive analog state variables after each switching event, which may be problematic for digital nonvolatile memory applications. The state variable w in such devices has been proposed to be the length of an undoped semiconductor region along the thickness of the thin film that acts as a tunnel barrier for electronic transport across it. The dynamical behavior of w is governed by the drift diffusion of ionized dopants such as oxygen vacancies. Making an analogy to scanning tunneling microscopes (STM), a closed-loop write scheme using current feedback is proposed to switch the memristive devices in a controlled manner. An integrated closed-loop current driver circuit for switching a bipolar memristive device is designed and simulated. The estimated upper limit of the feedback loop bandwidth is in the order of 100 MHz. We applied a SPICE model built upon the TiO2 memristive switching dynamics to simulate the single-device write operation and found the closed-loop write scheme caused a narrowing of the statistical distribution of the state variable w.
Superhalogens: A Bridge between Complex Metal Hydrides and Li Ion Batteries (2015)

Complex metal hydrides and Li ion batteries play an integral role in the pursuit of clean and sustainable energy. The former stores hydrogen and can provide a clean energy solution for the transportation industry, while the latter can store energy harnessed from the sun and the wind. However, considerable materials challenges remain in both cases, and research for finding solutions has traditionally followed parallel paths. In this Perspective, I show that there is a common link between these two seemingly disparate fields that can be unveiled by studying the electronic structure of the anions in complex metal hydrides and in electrolytes of Li ion batteries; they are both superhalogens. I demonstrate that considerable progress made in our understanding of superhalogens in the past decade can provide solutions to some of the materials challenges in both of these areas.
Downloadable Software Algorithm Reduces Inappropriate Shocks Caused by Implantable Cardioverter-Defibrillator Lead Fractures (2010)

A software download that upgrades previously implanted ICDs without surgical revision reduces inappropriate shocks caused by lead fractures.
Fault Location for Multi-Terminal Tapped Lines Using Synchronized Measurements (2018)

Increased penetration of distributed energy resources and their integration to the grid has given rise to huge growth in the number of multi-terminal transmission line installments. Majority of the installations do not have any measurement instruments placed at the junction, mainly to make them cost-effective. Conventional two-terminal fault location solutions fail when applied to these systems due to current infeed at the junction and lack of measurements there. This paper proposes a novel and robust fault location solution which uses positive sequence voltage and current quantities from all three terminals for accurate localization of the fault. The solution approach is to estimate the currents flowing from all three sections into the junction as a function of unknown fault distance and line parameters. The fault location is obtained by equating the sum of the three estimated currents to zero and solving for the unknown.
Plasma polymer process for microfluidic devices fabrication (2009)

Summary form only given. Plasma polymerization, so called remote plasma enhanced chemical vapour deposition (RPECVD) has been increasingly used in microsystems field. Plasma polymers served primarily as supports for electronic sensors or carriers for biomolecules and cell attachment. This work describes the first use of plasma thin film deposition for the easy, fast and reduced cost fabrication of microfluidic channels. A new method named "plasma polymerization on a micropatterned surface" (PPMS) is presented. First, micropatterns representing the desired channels were designed on a silicon wafer, either by lithography of a sacrificial photoresist or by plasma etching of the Si substrate. Then, the patterned substrate was introduced into the reaction chamber of a home-made microwave (2.45 GHz) plasma reactor. The organosilicon monomer 1,1,3,3,tetramethyldisiloxane was used as the precursor to synthetize and deposit a polymer organosilicon film by a remote afterglow PECVD. The deposited polymer is used as the structural material of the microfluidic network. Unlike conventional plasma deposition methods, PPMS process occurs at moderate temperatures and allows the deposition of a wide range of thicknesses (10 nm-500 mum), with 14 nm/s growth rate. Our method enables a rapid creation of capillarity-driven flow systems with channels width ranging from 4 to 700 mum without pillars. Channels are characterized and successfully tested. Capillary forces draw water, as well as aqueous solution into the channel from the inlet reservoir to the outlet one with the initial velocity of 4.4 cm/s. In addition, PPMS easily and softly allows the building of transparent microfluidic networks directly on processed electronic components.
Specialty High Bandwidth Multimode Fiber for Optical Interconnection (2009)

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 Y. Sun, R. Lingle, and D. Mazzarese, "Specialty High Bandwidth Multimode Fiber for Optical Interconnection," in Asia Communications and Photonics Conference and Exhibition, Technical Digest (CD) (Optica Publishing Group, 2009), paper TuZ3. Export Citation BibTex Endnote (RIS) HTML Plain Text Citation alert Save article
Numerical simulations of capillary barrier field tests (1997)

Numerical simulations of two capillary barrier systems tested in the field were conducted to determine if an unsaturated flow model could accurately represent the observed results. The field data was collected from two 7-m long, 1.2-m thick capillary barriers built on a 10% grade that were being tested to investigate their ability to laterally divert water downslope. One system had a homogeneous fine layer, while the fine soil of the second barrier was layered to increase its ability to laterally divert infiltrating moisture. The barriers were subjected first to constant infiltration while minimizing evaporative losses and then were exposed to ambient conditions. The continuous infiltration period of the field tests for the two barrier systems was modelled to determine the ability of an existing code to accurately represent capillary barrier behavior embodied in these two designs. Differences between the field test and the model data were found, but in general the simulations appeared to adequately reproduce the response of the test systems. Accounting for moisture retention hysteresis in the layered system will potentially lead to more accurate modelling results and is likely to be important when developing reasonable predictions of capillary barrier behavior.
Static race verification for networks with reconvergent clocks (2002)

We introduce a new method for pruning combinational paths in a static timing verifier. Our method is fast and robust, even for networks with min-max delays on reconvergent clock trees. We will show that current techniques for static timing verification are either not robust or not efficient for such networks. We will also show that these networks are becoming increasingly important with newer low-power, high-speed integrated circuits. We propose a new pruning strategy for such networks which is both correct and efficient.
MEMS based conductivity-temperature-depth (CTD) sensor for harsh oceanic environment (2005)

A MEMS based silicon CTD sensor for ocean environment is presented. The sensor components are a capacitive conductivity sensor (C), gold doped silicon temperature sensor (T), a multiple diaphragm piezoresistive pressure sensor (D). The sensor elements have further been packaged to protect them from harsh marine environment. This paper provides the design, fabrication and initial test results on a prototype CTD sensor
A Microdischarge-Based Monolithic Pressure Sensor (2014)

This paper describes the investigation of a microdischarge-based approach for sensing the diaphragm deflection in a monolithically fabricated pressure sensor. This transduction approach is appealing from the viewpoint of miniaturization. The device consists of a deflecting Si diaphragm with a sensing cathode, and a glass substrate with an anode and a reference cathode. The total exterior volume of the device is 0.05 mm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sup> ; typical electrode size and separations are 35 and 10 mm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sup> . Pulsed microdischarges are initiated in a sealed chamber formed between Si and glass chips, and are filled with Ar gas. External pressure deflects the Si diaphragm and changes the interelectrode spacing, thereby redistributing the current between the anode and two competing cathodes. The differential current is indicative of the diaphragm deflection which is determined by the external pressure. A 6-mask microfabrication process is investigated for device fabrication. Electrode connections to the interior of the chamber are provided by laser drilling and copper electroplating through high aspect ratio glass vias. The Si and glass substrates are bonded by Au-In eutectic. The redistribution of plasma current between competing cathodes, as a consequence of diaphragm deflection over a range of pressure, was experimentally demonstrated. First principles modeling of transient microdischarges have provided insights to the fundamental processes responsible for the differential current and guidance for scaling the device to smaller dimension.
Filtering tricks for FSK demodulation (2005)

In this article, we present a useful trick to make the implementation of a digital noncoherent frequency shift keying (FSK) demodulator more economical from a hardware complexity standpoint, with the goal of minimizing its computational workload. The article also utilizes comb filters in removing the dc offset from the signals and in reducing the complexity of follow-on filtering. The corrected signal is amenable to additional processing at the IF frequency or may be down-converted to a baseband frequency for further processing.
A Total-Velocity Sequential Preconditioner for Solving Implicit Reservoir Simulation Matrix Equations (1999)

Abstract The total velocity sequential semi-implicit method has received significant use since it was originally developed in about 1970 by Spillette, Hillestad, and Stone1. Its advantage is a reduction in the per-timestep computational requirement. It comprises two major steps: a solution of the IMPES pressure equation, then a solution of coupled saturation equations. Since the pressure solution is for a single unknown at each gridblock, it requires less work than solving fully implicit equations. Since the set of saturation equations does not have the elliptic nature of the pressure equation or of the fully implicit coupled set of equations, the saturation solution converges rapidly. Overall, the per-timestep computational work required is typically a half to a fifth that required for fully implicit computations. The sequential semi-implicit method is far more stable than IMPES, and it can be effective in a wide variety of reservoir problems. However, there are problems in which it does not work as well as the fully implicit method, its per-timestep economy being more than offset by a requirement to perform more timesteps. This paper describes an attempt to get the best of both worlds by using the total velocity equations in a preconditioner for the implicit matrix equation. The resulting method, which is similar to CPR2, has performed effectively in a variety of problems. However, its performance has not yet been compared to that of competing methods.
Measured-state driven warm-start strategy for linear MPC (2015)

Model Predictive Control (MPC) is an optimization-based control technique which involves solving an optimization problem in every sampling instant. As a consequence, MPC is very computationally demanding, compared to traditional control techniques. Thus, much effort in academia and also in industry is aimed at finding a way to decrease the computation time. One approach is to find such a starting point for the iterative solver that it finds the optimum in less iterations - this technique is called warm-start or hot-start. This paper brings attention back to the common warm-start technique as well as an alternative - realized via the Linear Quadratic Regulator (LQR) static feedback. The paper proposes a natural combination of both of these warm-start techniques to achieve improved results.
Microfabricated water immersion zone plate optical tweezer (2008)

We demonstrate the trapping of beads in water with a microfabricated Fresnel zone plate. Beads are loaded onto the microfabricated optical traps using conventional optical tweezers and fluorescence microscopy is used to track bead position. Analysis of the bead position as a function of time is used to determine trapping stiffness. We present experiments showing the three-dimensional trapping of 2μm diameter beads with trapping stiffnesses that are comparable to conventional optical tweezers when the zone plate efficiency is taken into account.
Design of a current-steering implantable stimulator with electric field shifting for deep brain stimulation (2010)

Active control over the electric field distribution during deep brain stimulation (DBS) can provide better focus of the stimulation field on target regions, beneficial to improve neural selectivity and reduce side effects arising from simulation of non-target regions. A current-steering tripolar electrode configuration can be adopted to achieve better selectivity in DBS. The tripole consists of a central cathode and two lateral anodes. The currents through the anodes are set by two complementary current sources. By varying the ratio between the amplitude of the anodic currents, the current can be steered toward one anode, while keeping the cathodic current constant. In this paper we present the design of a current-steering tripolar current source in 0.35 μm CMOS technology. The current source is capable of delivering cathodic currents up to 1.5 mA and generate exponential and quasi-trapezoidal pulses needed for anodal blocking. The average mismatch between sourcing and sinking currents is in the order of 0.4% and the output compliance ranges between 6.1V and 11.15V for a 12V supply, when the maximum and minimum anodic currents are supplied, respectively.
Registration of ‘PVL01’ Rice (2019)

‘PVL01’ (Reg. no. CV‐153, PI 682661), a Provisia (BASF) long‐grain rice ( Oryza sativa L.) cultivar, was developed by the Louisiana State University Agricultural Center at the H. Rouse Caffey Rice Research Station (HRCRRS) near Crowley, LA, and approved for release by the director of the Louisiana Agricultural Experiment Station in 2017. PVL01 is the first rice cultivar to be released as part of the Provisia Rice System (BASF) with resistance to Provisia herbicide, containing the active ingredient quizalofop, an AACase (group 1) herbicide. PVL01 was derived from the cross ‘Cheniere’/BASF1‐5 that was made in 2012 at the HRCRRS and advanced in 2014 as an F 2 :F 3 row based on agronomic characteristics. Testing in the Provisia Preliminary Yield (PVPY) trial in 2014 and the Provisia Multilocation Test in 2015 indicated good yield potential and favorable agronomic characteristics. In 2016 and 2017, PVL01 was evaluated in 14 replicated trials across seven locations in Louisiana. Four high‐yielding commercial cultivars were included as checks, ‘CL111’, ‘Cheniere’, ‘Cocodrie’, and ‘Mermentau’. Grain yield of PVL01 was 7.5 t ha −1 compared with 7.6 t ha −1 for CL111, 8.3 t ha −1 for Cheniere, 6.8 t ha −1 for Cocodrie, and 7.5 t ha −1 for Mermentau. PVL01 is very susceptible to blast, susceptible to sheath blight and bacterial panicle blight, and moderately resistant to Cercospora spp.
Effect of Interocular Contrast Difference on Stereopsis in Observers With Sensory Eye Dominance (2019)

By linking SEDinhibition and SEDcombo with the effect of ICD on stereopsis, we provided further support for the notion that the stimulus-compensating effect is mediated by the interocular inhibitory and interocular gain control mechanisms. Furthermore, the interocular contrast for SEDstereo-threshold and SEDstereo-RT can be potentially applied for improving stereopsis in individuals with SED.
Fourier spectrum method to determine dose-to-clear in a photoresist (2014)

A Fourier spectrum method to determine the dose-to-clear in a photoresist is proposed. The frequency content of scanning electron microscope resist images is used to determine whether the resist has been dissolved. Using this method, the dose to clear the resist is calculated automatically instead of via visual inspection, a method in which operator influence can affect the result.
Transportable real-time single-particle ion trap mass spectrometer (2005)

A transportable ion trap mass spectrometer for real-time detection and characterization of individual airborne particles was constructed by minimal modification of a commercial ion trap mass spectrometer. A blank flange was replaced with a flange containing an aerodynamic lens based inlet, light scattering detection optics and ablation/ionization laser optics. Four holes were drilled into the ring electrode. Timing electronics boards running off of in-place power systems were added and integrated with the existing software. The modified mass spectrometer and laser system was packaged in a rugged wheeled frame for easy transport. Particles entered the instrument through a 100μm orifice and were passed through an aerodynamic lens system that produced a well-collimated particle beam over a wide range of sizes. The particle beam passed through a skimmer into the main chamber where individual particles were optically detected and sized with two focused 532nm diode lasers on their way to the ion trap. When the particles reached the center of the trap, they were ablated and ionized with a focused 266nm laser. The nascent ions were then mass analyzed using standard ion trap techniques, including tandem mass spectrometry. Each detected particle was characterized with a mass spectrum and an aerodynamically determined particle size. Careful design minimized the weight and size of the instrument to 104kg and 69×71×76cm, with power consumption less than 1.5kW. Tandem mass spectrometry was demonstrated for identification of ions through collision-induced dissociation (CID) up to mass spectrometry (MS).4 Unit mass resolution was observed in both the parent and CID mass spectra.
Localized chronic iron deposition within non-reperfused myocardial infarctions (2015)

Background Chronic iron deposition is known to occur within reperfused hemorrhagic myocardial infarctions (MIs), and could be a source of prolonged inflammatory activity within MI territories. However, whether the stagnant blood downstream to the permanent occlusion (i.e. in territories of non-reperfused MI) could lead to chronic iron deposition is unknown. In this study, using a controlled canine model, we investigated whether chronic iron deposition could occur in non-reperfused MIs using T2* CMR and validated our findings with standard histological methods.
A novel APD-based detector module for multi-modality PET/SPECT/CT scanners (1999)

The lack of anatomical information in SPECT and PET images is one of the major factors limiting the ability to localize and accurately quantify radionuclide uptake in small regions of interest. This problem could be resolved by using multi-modality scanners having the capability to acquire anatomical and functional images simultaneously. The feasibility of a novel detector suitable for measuring high-energy annihilation radiation in PET, medium-energy /spl gamma/-rays in SPECT and low-energy X-rays in transmission CT is demonstrated and its performance is evaluated for potential use in multi-modality PET/SPECT/CT imaging. The proposed detector consists of a thin CsI(Tl) scintillator sitting on top of a deep GSO/LSO pair read out by an avalanche photodiode. The GSO/LSO pair provides depth-of-interaction information for 511 keV detection in PET, while the thin CsI(Tl) that is essentially transparent to annihilation radiation is used for detecting lower energy X- and /spl gamma/-rays. The detector performance is compared to that of an LSO/YSO phoswich. Although the implementation of the proposed GSO/LSO/CsI(Tl) detector raises special problems that increase complexity, it generally outperforms the LSO/YSO phoswich for simultaneous PET, SPECT and CT imaging.
Monoclonal Antibodies to Genus- and Type-Specific Papillomavirus Structural Antigens (1986)

Monoclonal antibodies against SDS-disrupted bovine papillomavirus type 1 (BPV1) were obtained from hybridomas prepared by fusing mouse myeloma cell line P3X63Ag8U1 with spleen cells from immunized BALB/c mice. Six hybridoma cell lines were obtained after testing supernatant fluids for positivity by the enzyme-linked immunosorbent assay using the immunogen as antigen and by indirect immunofluorescence (IF) on frozen sections of BPV1-induced bovine fibropapillomas. Monoclonal antibodies (AU1-AU6) from these hybridomas were then tested for reactivity by IF tests on BPV2-induced fibropapillomas and on human plantar warts and vulvar condylomas and by avidin-biotin complex tests on sections of formalin-fixed cervical dysplasias. One monoclonal antibody (AU1) was reactive with all tissues, four (AU3-AU6) were reactive with both BPV1 and BPV2 fibropapillomas, and the remaining antibody (AU2) was only reactive with BPV1-induced fibropapillomas. All monoclonal antibodies reacted with the major capsid protein (mol. wt. 54,000) of BPV1, whereas five (AU1, AU3-AU6) reacted with the major capsid protein of BPV2. These results indicate that papillomavirus genus-specific, cross-reactive, and type-specific antigenic determinants are located on the major capsid protein of BPV1.