gebhart/patrepeval huggingface dataset:
Deep Learning for Target-Dependent Sentiment Classification in Social Media (2018)

There is currently a revolution in developing deep learning models for improving performance of many machine learning systems. This revolution has been expanded to sentiment analysis (opinion mining) as a promising research area. Throughout this paper, we swaged in various recent works that are performed for developing sentiment analysis systems by exploiting capabilities of deep learning models. We introduce a comprehensive literature review on predicting sentiments expressed towards particular topics (targets) in micro-blogs (such as tweets). This micro-specialization is referred to as target-dependent sentiment classification. To make our work more comprehensive, we evaluated also two more deep learning models that have not been used before in this research direction. Experimental results are shown along with summaries and discussions to emerge significance of developing deep learning based models in improving accuracy of target-dependent sentiment classification. Our findings highlighted some gaps that can be filled in future research and illustrates that there is a room for improvement.
Easy Separation of the Cis-syn-Cis and Cis-anti-Cis Isomers of Dicyclohexyl-18-crown-6 (1992)

Abstract The separation of the cis-anti-cis and the cis-syn-cis isomers of DCH18C6 from a mixture of cis isomers of commercial DCH18C6 is achieved by selective crystallization of the uranyl nitrate/DCH18C6 cis-anti-cis complex.
ELECTROTHERMALLY ACTUATED BI-DIRECTIONAL LINEAR VIBROMOTOR (1999)

A compact polysilicon surface-micromachined thermal actuator-based vibromotor has been designed and fabricated. Mechanical power transmission occurs during the impact of the thermal actuators on the sides of a movable guided element (slider.) Bi-directional operation is made possible through the impact head design. The thermal actuators have been driven at frequencies up to 10 kHz. A traveling speed of 3 mm s has been demonstrated with an AC input voltage of 2.0 V at 5 kHz plus a 10.0-V DC bias offset. A polysilicon hinged vertical micromirror has been moved for a full range of 350 mu m.
Redox flow cell energy storage systems (1979)

NASA-Redox systems are electrochemical storage devices that use two fully soluble Redox couples, anode and cathode fluids, as active electrode materials separated by a highly selective ion exchange membrane. The reactants are contained in large storage tanks and pumped through a stack of Redox flow cells where the electrochemical reactions (reduction and oxidation) take place at porous carbon felt electrodes. A string or stack of these power producing cells is connected in series in a bipolar manner. Redox energy storage systems promise to be inexpensive and possess many features that provide for flexible design, long life, high reliability and minimal operation and maintenance costs. These features include independent sizing of power and storage capacity requirements and inclusion within the cell stack of a cell that monitors the state of charge of the system as a whole, and a rebalance cell which permits continuous correction to be made for minor side reactions that would tend to result in the anode fluid and cathode fluids becoming electrochemically out of balance. These system features are described and discussed.
TxCache: Transactional cache using byte-addressable non-volatile memories in SSDs (2014)

Transaction is a common technique to ensure system consistency but incurs high overhead. Recent flash memory techniques enable efficient embedded transaction support inside solid state drives (SSDs). In this paper, we propose a new embedded transaction mechanism, TxCache, for SSDs with non-volatile disk cache. TxCache revises cache management of disk cache to support transactions using two techniques. First, it persists new-version data in non-volatile disk cache in a shadow way while protecting old-version data from being overwritten. Second, it uses pointers and flags leveraging the byte-addressability to cluster pages of each transaction and manage transaction status. The non-volatility and byte-addressability properties make TxCache an efficient transaction design. Experiments using file system and database workloads show performance improvement up to 46.0% and lifetime extension up to 33.8% compared to a recent transactional SSD design.
Silica Extraction at the Mammoth Lakes Geothermal Site (2006)

The purpose of this project is to develop a cost-effective method to extract marketable silica (SiO{sub 2}) from fluids at the Mammoth Lakes, California geothermal power plant. Marketable silica provides an additional revenue source for the geothermal power industry and therefore lowers the costs of geothermal power production. The use of this type of ''solution mining'' to extract resources from geothermal fluids eliminates the need for acquiring these resources through energy intensive and environmentally damaging mining technologies. We have demonstrated that both precipitated and colloidal silica can be produced from the geothermal fluids at Mammoth Lakes by first concentrating the silica to over 600 ppm using reverse osmosis (RO). The RO permeate can be used in evaporative cooling at the plant; the RO concentrate is used for silica and potentially other (Li, Cs, Rb) resource extraction. Preliminary results suggest that silica recovery at Mammoth Lakes could reduce the cost of geothermal electricity production by 1.0 cents/kWh.
Unified Virtual Oscillator Control for Synchronization Under Ultra-Weak Grid Conditions (2021)

A unified virtual oscillator controller (uVOC) with fast power control response is proposed for enhanced synchro-nization under ultra-weak grid conditions. The recently proposed uVOC offers a unified analysis, design, and implementation framework for both grid-following and grid-forming converters; leveraging its superior synchronization capability, enhanced fault ride-through response is achieved without the need for a back-up controller during faults. In this work, we propose an improved uVOC design and implementation which enables fast power-flow control. Through analysis, we demonstrate that the proposed controller retains synchronization as long as a feasible equilibrium exists. Furthermore, using dynamic reactive power control the feasible power-flow range is extended under ultra-weak grid conditions. Systematic design guidelines for controller parameters are presented. The analysis and design are validated through hardware experiments.
Cover Picture: Strategies for Hydrogen Storage in Metal–Organic Frameworks / High H<sub>2</sub> Adsorption in a Microporous Metal–Organic Framework with Open Metal Sites (Angew. Chem. Int. Ed. 30/2005) (2005)

Hydrogen storage strategies …︁ for metal–organic frameworks have been developed recently to enhance their applicability in this role, as shown in the cover picture. In their Minireview on page 4670 ff., O. M. Yaghi and J. L. C. Rowsell discuss the various approaches used to reach the required compromise between high porosity and smaller pore size for stronger binding of H 2 under ambient conditions. In their Communication on page 4745, B. Chen, O. M. Yaghi, and co‐workers report a promising hydrogen‐storage material with open metal sites.
Indicators of Liver Viability in the Ex Vivo Perfused Human Liver. (2014)

Machine perfusion of the liver is rapidly gaining support for the recovery and preservation of grafts injured by long warm ischemia (WI). A major advantage of machine perfusion at warm temperatures is the ability to assess the viability of the liver pre-transplantation. However, the best indicators need to be identified to accurately assess the liver during perfusion. To this end, we perfused 20 human livers discarded for transplantation with varying durations of warm ischemia (range 14-54 minutes) in our subnormothermic perfusion system. We monitored the liver by assessment of blood gas analysis, bile flow, biochemical markers of function (albumin, urea) and injury (alanine aminotransferase, alkaline phosphatase), tissue analysis (ATP), clearance of indocyanine green (ICG), and (electron-)microscopy. These parameters were correlated to characteristics of the donor and WI of the liver. We show here that metabolic and liver function parameters are sustained or improved during perfusion, with an increase in oxygen consumption, albumin and urea output and overall sustained bile production. Minimal injury was observed biochemically or microscopically. ATP content of the liver tissue improved significantly (61.1 to 204.3 p=0.012). ATP content showed a good correlation with WIT (r2=.83, p=.0045). As ATP measurement requires tissue biopsy non-invasive and real-time parameter are preferred. Not the total production of bile, but whether bile production increased during perfusion correlated best with the low WIT (p<0.006)(Figure). A positive correlation with WIT was also found between the release of alanine aminotransferase (ALT) (r2=.58, p=.016) and clearance of ICG (r2=.95, p=.002). In conclusion, ATP content, sustained bile production and ALT and clearance of ICG are best correlated to WIT and may be useful as indicators of liver quality. Ongoing work aims to formulate predictive scores using these and other parameters of viability that can predict transplant outcome.Figure: No Caption available.DISCLOSURES:Izamis, M.: Other, Author of patent, A patent exists including the technology described. Uygun, K.: Other, Author on patent, A patent exists including the technology described.
High Brightness HDR Projection Using Dynamic Freeform Lensing (2016)

Cinema projectors need to compete with home theater displays in terms of image quality. High frame rate and spatial resolution as well as stereoscopic 3D are common features today, but even the most advanced cinema projectors lack in-scene contrast and, more important, high peak luminance, both of which are essential perceptual attributes of images appearing realistic. At the same time, HDR image statistics suggest that the average image intensity in a controlled ambient viewing environment such as the cinema can be as low as 1% for cinematic HDR content and not often higher than 18%, middle gray in photography. Traditional projection systems form images and colors by blocking the source light from a lamp, therefore attenuating between 99% and 82% of light, on average. This inefficient use of light poses significant challenges for achieving higher peak brightness levels. In this work, we propose a new projector architecture built around commercially available components, in which light can be steered to form images. The gain in system efficiency significantly reduces the total cost of ownership of a projector (fewer components and lower operating cost), and at the same time increases peak luminance and improves black level beyond what is practically achievable with incumbent projector technologies. At the heart of this computational display technology is a new projector hardware design using phase modulation in combination with a new optimization algorithm that is capable of on-the-fly computation of freeform lens surfaces.
Electrolyzed Reduced Water Which Can Scavenge Active Oxygen Species Supresses Cell Growth and Regulates Gene Expression of Animal Cells (2006)

Active oxygen species are considered to cause extensive oxidative damage to biological macromolecules, which bring about a variety of diseases as well as aging. Reduced water produced near cathode during electrolysis of water exhibits high pH, low dissolved oxygen, extremely high dissolvedmolecular hydrogen, and extremely negative redox potential values. Recently we found that strongly electrolyzed reduced water scavenges active oxygen species and protects DNA from oxidative damage (Shirahata, S. et al., Biochem. Biophys. Res. Commun., 234, 269–274 (1997)). Electrolyzed reduced water suppressed the growth of human normal fibroblast TIG-1, human lung adenocarcinoma A549, and human uterine cervix cancer HeLa, indicating that reduced water affects the signaling pathway of cell cycle. The expression of the interleukin-6 gene was enhanced by reduced water as well as ascorbic acid, (+)-catechin and tannic acid when added to the culture of human osteosarcoma MG-63 cells, suggesting that reduced water acts as a reductant to cells.
Sparse imaging for fast electron microscopy (2013)

Scanning electron microscopes (SEMs) are used in neuroscience and materials science to image centimeters of sample area at nanometer scales. Since imaging rates are in large part SNR-limited, large collections can lead to weeks of around-the-clock imaging time. To increase data collection speed, we propose and demonstrate on an operational SEM a fast method to sparsely sample and reconstruct smooth images. To accurately localize the electron probe position at fast scan rates, we model the dynamics of the scan coils, and use the model to rapidly and accurately visit a randomly selected subset of pixel locations. Images are reconstructed from the undersampled data by compressed sensing inversion using image smoothness as a prior. We report image fidelity as a function of acquisition speed by comparing traditional raster to sparse imaging modes. Our approach is equally applicable to other domains of nanometer microscopy in which the time to position a probe is a limiting factor (e.g., atomic force microscopy), or in which excessive electron doses might otherwise alter the sample being observed (e.g., scanning transmission electron microscopy).
Capacitive micromachined ultrasonic transducers with piston-shaped membranes: fabrication and experimental characterization (2009)

Capacitive micromachined ultrasonic transducers (CMUTs) featuring piston-shaped membranes (piston CMUTs) were developed to improve device performance in terms of transmission efficiency, reception sensitivity, and fractional bandwidth (FBW). A piston CMUT has a relatively flat active moving surface whose membrane motion is closer to ideal piston-type motion compared with a CMUT with uniformly thick membranes (classical CMUT). Piston CMUTs with a more uniform surface displacement profile can achieve high output pressure with a relatively small electrode separation. The improved device capacitance and gap uniformity also enhance detection sensitivity. By adding a center mass to the membrane, a large ratio of second-order resonant frequency to first-order resonant frequency was achieved. This improved the FBW. Piston CMUTs featuring membranes of different geometric shapes were designed and fabricated using wafer bonding. Fabricating piston CMUTs is a more complex process than fabricating CMUTs with uniformly thick membranes. However, no yield loss was observed. These devices achieved ~100% improvement in transduction performance (transmission and reception) over classical CMUTs. For CMUTs with square and rectangular membranes, the FBW increased from ~110% to ~150% and from ~140% to ~175%, respectively, compared with classical CMUTs. The new devices produced a maximum output pressure exceeding 1 MPa at the transducer surface. Performance optimization using geometric membrane shape configurations was the same in both piston CMUTs and classical CMUTs.
Development of an efficient structure‐based drug discovery platform for BACE1 Inhibitors for the treatment of Alzheimer's Disease (2016)

BACE1 (Beta‐site Amyloid precursor protein (APP) Cleaving Enzyme 1) is a promising therapeutic target for Alzheimer's disease (AD). However, efficient expression, purification and crystallization systems are not well described or detailed in the literature nor are approaches for treatment of enzyme kinetic data for tight‐binding inhibitors well described. Therefore, we have developed a platform for expression and purification of BACE1, including protein refolding from inclusion bodies, from E. coli in addition to a reproducible crystallization procedure of BACE1 bound with inhibitors. We also report a detailed approach to the proper analysis of enzyme kinetic data for compounds that exhibit either rapid‐equilibrium or tight‐binding inhibitor behavior. Our methods allow for the purification of 16 mg of BACE1 enzyme from 1 L of culture scale, which is higher than reported yields in the current literature. For treatment of inhibitory data, we have identified binding affinity ranges where fitting kinetic data using the Morrison equation and plot and running a standard inhibitor to accurately determine the active enzyme concentration, is favored over classical models. To evaluate our platform from purification to X‐ray crystallography, we have tested known potent inhibitors previously reported by the Ghosh lab. The inhibitory constants and X‐ray structures of these three compounds in complex with BACE1 were readily obtained and provide important insight into the structure and thermodynamics of the BACE1‐inhibitor interactions.
An interactive 3D user interface for guided bronchoscopy (2007)

Recent studies have shown that more than 5 million bronchoscopy procedures are performed each year worldwide. The procedure usually involves biopsy of possible cancerous tissues from the lung. Standard bronchoscopes are too large to reach into the peripheral lung, where cancerous nodules are often found. The University of Washington has developed an ultrathin and flexible scanning fiber endoscope that is able to advance into the periphery of the human lungs without sacrificing image quality. To accompany the novel endoscope, we have developed a user interface that serves as a navigation guide for doctors when performing a bronchoscopy. The navigation system consists of a virtual surface mesh of the airways extracted from computed-tomography (CT) scan and an electromagnetic tracking system (EMTS). The complete system can be viewed as a global positioning system for the lung that provides pre-procedural planning functionalities, virtual bronchoscopy navigation, and real time tracking of the endoscope inside the lung. The real time virtual navigation is complemented by a particle filter algorithm to compensate for registration errors and outliers, and to prevent going through surfaces of the virtual lung model. The particle filter method tracks the endoscope tip based on real time tracking data and attaches the virtual endoscopic view to the skeleton that runs inside the virtual airway surface. Experiment results on a dried sheep lung show that the particle filter method converges and is able to accurately track the endoscope tip in real time when the endoscope is inserted both at slow and fast insertion speeds.
Diversified Service Provisioning in Global Business Networks (2011)

Companies and their services are being increasingly exposed to global business networks and Internet-based on-demand services. Much of the focus is on flexible orchestration and consumption of services, beyond ownership and operational boundaries of services. However, ways in which third-parties in the "global village" can seamlessly self-create new offers out of existing services remains open. This paper proposes a framework for service provisioning in global business networks that allows an open-ended set of techniques for extending services through a rich, multi-tooling environment. The Service Provisioning Management Framework, as such, supports different modeling techniques, through supportive tools, allowing different parts of services to be integrated into new contexts. Integration of service user interfaces, business processes, operational interfaces and business object are supported. The integration specifications that arise from service extensions are uniformly reflected through a kernel technique, the Service Integration Technique. Thus, the framework preserves coherence of service provisioning tasks without constraining the modeling techniques needed for extending different aspects of services.
How Can We Trust a Policy System to Make the Best Decision? (2005)

Policy-based systems are becoming increasingly common; the emerging areas of autonomic (Horn; Kephart and Chess, 2003) and on demand (Kephart and Walsh, 2004) computing are accelerating the adoption of such systems. As the requirements on policy-based systems become more complex, traditional approaches to the implementation of such systems, such as relying entirely on simple "if [condition] then [actions]" rules, become insufficient. New approaches to the design and implementation of policy-based systems have emerged, including goal policies (Kephart and Walsh, 2004; Bandara et al., 2004), utility functions (Kephart and Walsh, 2004), data mining, reinforcement learning, and planning. Unfortunately, these new approaches do nothing to reduce administrators' skepticism towards policy-based automation - how is an administrator to believe that a policy-based system will help his systems perform better? Unless policy-based systems are trusted at least as much as traditional systems, it is unlikely that the acceptance of the policy-based systems will increase. In this report, we describe an approach by which a policy-based system can win the trust of its users, and can continuously adjust itself to make better decisions based on the users' preferences.
RF sensor of a novel NMR apparatus (for petrophysical evaluation) (1992)

A pulsed-NMR (nuclear magnetic resonance) apparatus has been developed for petrophysical evaluation of earth formations. The instrument is deployed in boreholes drilled in the ground that are typically 20 cm in diameter and 0.5-5 km deep. The NMR measurement yields the volume fraction of the pores in the rock and the distribution of the pore sizes. A vital component of borehole NMR instruments is a near-field antenna that is used to transmit high-power RF pulses, to manipulate the nuclear spin state of the hydrogen nuclei. Similar to a radar, when the transmitter is off, the antenna receives a feeble RF pulse (a spin-echo) due to precessing nuclear magnetic moments. The design of the antenna requires extreme care, because the NMR signal induced in the antenna is comparable to the thermal noise generated in the antenna. The design goal is to maximize the signal to noise ratio, which is an increasing function of figure of merit.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Oxynitride glass fibers. Patent Application (1985)

This invention relates to the production of high-elastic-modulus, high-strength, corrosion-resistant oxynitride glass-fibers for improved fiber-reinforced composites. The incorporation of nitrogen into silicon-yttrium-aluminum oxide glasses enhances the properties of bulk glass. This invention is the first demonstation that such glasses can be made into fibers. The addition of nitrogen to pratically any oxide glass fiber composition will produce improvements in properties similar to those shown for the silicon-yttrium-aluminum system.
Allyl-Terminated Polypropylene Macromonomers: A Route to Polyolefin Elastomers with Excellent Elastic Behavior (2015)

We report the design, synthesis, and physical/mechanical properties of graft copolymers containing semicrystalline polypropylene side chains and amorphous ethylene/α-olefin copolymer backbones. These materials, a new class of semicrystalline, polyolefin-based thermoplastic elastomers, are made in two steps. First, allyl-terminated syndiotactic or isotactic polypropylene macromonomers are synthesized with controlled microstructure and molecular weight using bis(phenoxyimine)titanium or chiral ansa-zirconocene catalysts, respectively. Second, a pyridyl-amido hafnium catalyst is used to copolymerize the macromonomer, ethylene, and an α-olefin with precise control of composition and side chain incorporation. With highly crystalline polypropylene side chains and amorphous backbones of low glass-transition temperatures (<−55 °C), the samples have strain-to-break values up to 1400% and elastic recovery above 85% at maximum strains up to 1000%. The synthetic method described herein does not require the use of a living polymerization catalyst; in addition, the mechanical properties of these graft copolymers exceed those of the best linear block polyolefins.