gebhart/patrepeval huggingface dataset:
Decentralized Optimal Dispatch of Photovoltaic Inverters in Residential\n Distribution Systems (2014)

Decentralized methods for computing optimal real and reactive power setpoints\nfor residential photovoltaic (PV) inverters are developed in this paper. It is\nknown that conventional PV inverter controllers, which are designed to extract\nmaximum power at unity power factor, cannot address secondary performance\nobjectives such as voltage regulation and network loss minimization. Optimal\npower flow techniques can be utilized to select which inverters will provide\nancillary services, and to compute their optimal real and reactive power\nsetpoints. Leveraging advances in semidefinite relaxation techniques and\nsparsity-promoting regularizations, such problems can be solved with reduced\ncomputational burden and with optimality guarantees. To enable large-scale\nimplementation, a novel algorithmic framework is introduced - based on the\nso-called alternating direction method of multipliers - by which the optimal\npower flow problem in this setting can be systematically decomposed into\nsub-problems that can be solved in a decentralized fashion by the utility and\ncustomer-owned PV systems with limited exchanges of information. Since the\ncomputational burden is shared among multiple devices and the requirement of\nall-to-all communication can be circumvented, the proposed optimization\napproach scales to large distribution networks.\n
Dynamic power management with power network-on-chip (2014)

A critical challenge in multifunctional heterogeneous systems-on-chip is delivering high quality dynamically controlled power to support power efficient and portable systems. Efficiently providing multiple point-of-load on-chip voltages requires fundamental changes to the power delivery and management process. The concept of a power network on-chip (PNoC) is introduced here as a general scalable platform for delivering and managing power. This network provides enhanced power control and real-time management of resource sharing for systematic and scalable management of the power delivery process in heterogeneous integrated circuits. To evaluate the performance of the proposed power delivery and management system, a PNoC with four power routers is investigated which supplies power to four power domains. The behavior of the individual power domains is modeled with IBM power grid benchmarks. The proposed architecture and circuits for sensing, routing, and dynamic control of the on-chip power are described. The built-in modularity of the PNoC is exploited to apply dynamic voltage scaling, illustrating the scalability of the PNoC platform while exhibiting power savings of up to 32%.
Computerized analysis of radiographic bone patterns: Effect of imaging conditions on performance (2000)

We are developing computerized methods for characterizing the bone texture pattern from digitized skeletal radiographs. For this method to be useful clinically, it must be able to distinguish between weak and strong bone under the range of exposure conditions potentially encountered in the clinical setting. In this study, we examined the effect of exposure conditions on Fourier-based texture features. Thirty-four femoral specimens from total hip arthroplasties were radiographed multiple times under different exposure conditions. The specimens underwent mechanical strength testing from which load to failure values were obtained. The performance of the texture features were investigated in the task of distinguishing between strong and weak bone as characterized by the load to failure values. The texture features showed no dependence upon focal spot size of the x-ray tube or magnification. The texture features did show a dependence with relative exposure, peak kilovoltage, and amount of scattering material.
Intrinsically superparamagnetic Fe-hydroxyapatite nanoparticles positively influence osteoblast-like cell behaviour (2012)

The results of the current study suggest that these novel FeHA MNPs may be particularly relevant for strategies of bone tissue regeneration and open new perspectives for the application of a static magnetic field in a clinical setting of bone replacement, either for diagnostic imaging or magnetic drug delivery.
Aligned Carbon Nanotube Film Self-Organized on a SiC Wafer (1998)

An aligned carbon nanotube film was fabricated on the surface of an α-SiC wafer by heating at 1700°C for 30 min. in a vacuum electric furnace due to the decomposition of SiC by selected desorption. It was found to be easy to produce a large-area carbon nanotube film on the SiC substrate. The (0002) lattice distance of graphite constructing the CNTs was obtained to be 0.344 nm from the electron diffraction pattern.
Pseudomonas aeruginosa outer membrane lipoprotein I gene: molecular cloning, sequence, and expression in Escherichia coli (1989)

Lipoprotein I (OprI) is one of the major proteins of the outer membrane of Pseudomonas aeruginosa. Like porin protein F (OprF), it is a vaccine candidate because it antigenically cross-reacts with all serotype strains of the International Antigenic Typing Scheme. Since lipoprotein I was expressed in Escherichia coli under the control of its own promoter, we were able to isolate the gene by screening a lambda EMBL3 phage library with a mouse monoclonal antibody directed against lipoprotein I. The monocistronic OprI mRNA encodes a precursor protein of 83 amino acid residues including a signal peptide of 19 residues. The mature protein has a molecular weight of 6,950, not including bound glycerol and lipid. Although the amino acid sequences of protein I of P. aeruginosa and Braun's lipoprotein of E. coli differ considerably (only 30.1% identical amino acid residues), peptidoglycan in E. coli, are identical. Using lipoprotein I expressed in E. coli, it can now be tested whether this protein alone, without P. aeruginosa lipopolysaccharide contaminations, has a protective effect against P. aeruginosa infections.
The Respiratory Pathogen<i>Moraxella catarrhalis</i>Adheres to Epithelial Cells by Interacting with Fibronectin through Ubiquitous Surface Proteins A1 and A2 (2005)

Moraxella catarrhalis ubiquitous surface protein (Usp) A1 has been reported to bind fibronectin and is involved in adherence. In this study, using M. catarrhalis mutants derived from clinical isolates, we show that both UspA1 and UspA2 bind fibronectin. Recombinant truncated UspA1/A2 proteins, together with smaller fragments spanning the entire molecule, were tested for binding to fibronectin. Both UspA1 and UspA2 bound fibronectin, and the fibronectin-binding domains were located within UspA1 299-452 and UspA2 165-318 . These 2 truncated proteins inhibited binding of M. catarrhalis to Chang conjunctival epithelial cells to an extent similar to that by anti-human fibronectin antibodies. Our observations show that both UspA1 and UspA2 are involved in adherence to epithelial cells via cell-associated fibronectin. The biologically active sites within UspA1 299-452 and UspA2 165-318 have therefore been suggested to be potential candidates to be included in a future vaccine against M. catarrhalis.
Nonlinear Compensation Using Multi-Subband Frequency-Shaped Digital Backpropagation (2012)

uz t are the two polarization components.
Rapid and quantitative chemical exchange saturation transfer (CEST) imaging with magnetic resonance fingerprinting (MRF) (2018)

CEST-MRF provides a method for fast, quantitative CEST imaging.
Single-shot fluorescence spectra of single micron-sized particles for the characterization of biological aerosols (2003)

Summary form only given. Airborne biological particles are minor but important component of Earth's atmosphere. They can cause disease in humans, animals, and plants. Therefore, the rapid real-time measurements of fluorescence spectra of airborne particles for the discrimination and characterization among biological aerosols would be useful. In this paper a new method for real-time measurement of reproducible, high signal-to-noise ratio, single-shot UV laser excited fluorescence spectra of various flowing individual biological aerosols is described.
Enzymatic Production of Ribavirin from Orotidine by<i>Erwinia carotovora</i>AJ 2992 (1988)

Journal Article Enzymatic Production of Ribavirin from Orotidine by Erwinia carotovora AJ 2992 Get access Hideyuki Shirae, Hideyuki Shirae Central Research Laboratories of Ajinomoto Co., Inc., 1-1, Suzuki-cho, Kawasaki-ku, Kawasaki 210, Japan Search for other works by this author on: Oxford Academic Google Scholar Kenzo Yokozeki, Kenzo Yokozeki Central Research Laboratories of Ajinomoto Co., Inc., 1-1, Suzuki-cho, Kawasaki-ku, Kawasaki 210, Japan Search for other works by this author on: Oxford Academic Google Scholar Koji Kubota Koji Kubota Central Research Laboratories of Ajinomoto Co., Inc., 1-1, Suzuki-cho, Kawasaki-ku, Kawasaki 210, Japan Search for other works by this author on: Oxford Academic Google Scholar Agricultural and Biological Chemistry, Volume 52, Issue 6, 1 June 1988, Pages 1499–1504, https://doi.org/10.1080/00021369.1988.10868897 Published: 01 June 1988 Article history Received: 23 December 1987 Published: 01 June 1988
Simultaneous Carbon and Nitrogen Removal in Anoxic-Aerobic Circulating Fluidized Bed Biological Reactor (CFBBR) (2004)

Biological nutrient removal (BNR) in municipal wastewater treatment to remove carbonaceous substrates and nutrients, has recently become increasingly popular worldwide due to increasingly stringent regulations. Biological fluidized bed (BFB) technology, which could be potentially used for BNR, can provide some advantages such as high efficiency and a compact structure. This work shows the results of simultaneous elimination of organic carbon and nitrogen using a circulating fluidized bed biological reactor (CFBBR, which has been developed recently for chemical engineering processes. The CFBBR has two fluidized beds, running as anoxic and aerobic processes to accomplish simultaneous nitrification and denitrification, with continuous liquid recirculation through the anoxic bed and the aerobic bed. Soluble COD concentrations in the effluent ranging from 4 to 20 mg l(-1) were obtained at varying COD loading rates; ammonia nitrogen removal efficiencies averaged in excess of 99% at a minimum total hydraulic retention time (HRT) of 2.0 hours over a temperature range of 25 degrees C to 28 degrees C. Effluent nitrate nitrogen concentration of less than 5 mg l(-1) was achieved by increasing effluent recycle rate. No nitrite accumulation was observed either in the anoxic bed or in the aerobic bed. The system was able to treat grit chamber effluent wastewater at a HRT of 2.0 hours while achieving average effluent BOD, COD, NH3-N, TKN, nitrates, total phosphate, TSS and VSS concentrations of 10 mg l(-1), 18 mg l(-1), 1.3 mg l(-1), 1.5 mg l(-1), 7 mg l(-1), 2.0 mg l(-1), 10 mg l(-1) and 8 mg l(-1) respectively. The CFBBR appears to be not only an excellent alternative for conventional activated sludge type BNR technologies but also capable of processing much higher loadings that are suitable for industrial applications.
Large-Signal-Network-Analyzer Phase Calibration on an Arbitrary Grid (2019)

We have developed a method for improving the synchronization of large-signal network analyzers and transferring "cross-frequency" phase calibrations from a calibrated sampling oscilloscope to the large-signal network analyzer on an arbitrary frequency grid. The approach can be applied to the measurement of modulated signals and other waveforms on arbitrary and fine frequency grids. This translates into the ability to measure complex and arbitrarily long signals traceably with high dynamic range.
An almost full-scan BIST solution-higher fault coverage and shorter test application time (2002)

This paper illustrates that for existing scan-based Built-In Self-Test (BIST) architectures under the pseudo-random testing scheme, scanning all flip-flops may not be the best strategy for achieving high fault coverage with a practical limit on test length. In general, for scan-based BIST, not scanning flip-flops with relatively high pseudo-random observabilities through the primary outputs may indeed improve the fault coverage as well as the test application time. We illustrate the issues and present a flip-flop selection strategy for scan-based BIST to maximize the fault coverage and reduce the test application time. Experiments have been conducted based on an industrial tool psb2 for several benchmark circuits. The results show that the almost-full-scan circuits based on our flip-flop selection strategy can achieve higher fault coverages and significantly shorter test application time as compared with the full-scan circuits.
Scintillation study of ZnWO4 single crystals (1980)

Scintillation characteristics of the Czochralski-grown ZnWO4 single crystal were studied. This crystal, with light red-brown color, exhibits a maximum luminescence wavelength of 480 nm under excitation at 254 nm. The total luminescence output under x-ray excitation at 254 nm. The total luminescence output under x-ray excitation was found to be 2.3 times larger than that of the best Bi4Ge3O12 at room temperature with small afterglow.
Naval Structural Antenna Systems for Broadband HF Communications—Part II: Design Methodology for Real Naval Platforms (2006)

Recently, it was shown how to make a multipurpose broadband HF antenna system out of existing naval super-structures such as the funnel or a big mast. The idea was discussed by means of canonical structures, e.g., a cylindrical body of circular or square cross-section, placed onto an infinite ground plane. This paper investigates the critical aspects concerning the extension of naval structural antenna concept to real ship platforms with the aim to define a general design methodology for impedance matching and radiation pattern control. The method is described with reference to a realistic frigate model, whose big mast is transformed into a broadband HF antenna system able to perform communications by both sea-wave and sky-wave links. It is demonstrated that, even in a real environment, the multiport strategy permits to increase the system efficiency and to moderately shape the radiation pattern in order to overcome the shadowing effect due to other large objects
Two-Step Iron(0)-Mediated N-Demethylation of <i>N</i>-Methyl Alkaloids (2010)

A mild and simple two-step Fe(0)-mediated N-demethylation of a number of tertiary N-methyl alkaloids is described. The tertiary N-methylamine is first oxidized to the corresponding N-oxide, which is isolated as the hydrochloride salt. Subsequent treatment of the N-oxide hydrochloride with iron powder readily provides the N-demethylated amine. Representative substrates include a number of opiate and tropane alkaloids. Key intermediates in the synthesis of semisynthetic 14-hydroxy pharmaceutical opiates such as oxycodone and oxymorphone are also readily N-demethylated using this method.
Normothermic Ex Vivo Lung Perfusion in Clinical Lung Transplantation (2011)

Transplantation of high-risk donor lungs that were physiologically stable during 4 hours of ex vivo perfusion led to results similar to those obtained with conventionally selected lungs. (Funded by Vitrolife; ClinicalTrials.gov number, NCT01190059.).
Stable field emission from nanoporous silicon carbide (2012)

We report on a new type of cold cathode field emission electron source capable of extremely high emission, producing current densities at levels comparable to thermal sources. Record stable emission in excess of 6 A/cm2 at 7.5 V/μm and a maximum current density of 11 A/cm2 at 9.0 V/μm are demonstrated. The emitter is a unique structure, comprised of a monolithic and rigid nanostructured foam with homogenously distributed emission sites. The fabrication process is simple and scalable, as it consists of wet chemistry and ion etching and does not require high temperature gas phase synthesis. Electric field enhancement is tunable and is set by a two-level hierarchy consisting of local nanostructure morphology and the macroscopic shape.
From essential to beneficial: glycoprotein D loses importance for replication of bovine herpesvirus 1 in cell culture (1997)

Glycoprotein D (gD) of bovine herpesvirus 1 (BHV-1) has been shown to be an essential component of virions involved in virus entry. gD expression in infected cells is also required for direct cell-to-cell spread. Therefore, BHV-1 gD functions are identical in these aspects to those of herpes simplex virus 1 (HSV-1) gD. In contrast, the gD homolog of pseudorabies virus (PrV), although essential for penetration, is not necessary for direct cell-to-cell spread. Cocultivation of cells infected with phenotypically gD-complemented gD- mutant BHV-1/80-221 with noncomplementing cells resulted in the isolation of the cell-to-cell-spreading gD-negative mutant ctcs+BHV-1/80-221, which was present in the gD-null BIV-1 stocks. ctcs+BHV-1/80-221 could be propagated only by mixing infected with uninfected cells, and virions released into the culture medium were noninfectious. Marker rescue experiments revealed that a single point mutation in the first position of codon 450 of the glycoprotein H open reading frame, resulting in a glycine-to-tryptophan exchange, enabled complementation of the gD function for cell-to-cell spread. After about 40 continuous passages of ctcs+BHV-1/80-221-infected cells with noninfected cells, the plaque morphology in the cultures started to change from roundish to comet shaped. Cells from such plaques produced infectious gD- virus, named gD-infBHV-1, which entered cells much more slowly than wild-type BHV-1. In contrast, integration of the gD gene into the genomes of gD-infBHV-1 and ctcs+BHV-1/80-221 resulted in recombinants with accelerated penetration in comparison to wild-type virions. In summary, our results demonstrate that under selective conditions, the function of BHV-1 gD for direct cell-to-cell spread and entry into cells can be compensated for by mutations in other viral (glyco)proteins, leading to the hypothesis that gD is involved in formation of penetration-mediating complexes in the viral envelope of which gH is a component. Together with results for PrV, varicella-zoster virus, which lacks a gD homolog, and Marek's disease virus, whose gD homolog is not essential for infectivity, our data may open new insights into the evolution of alphaherpesviruses.
Influence of the high density lipoprotein receptor SR-BI on reproductive and cardiovascular pathophysiology (1999)

The high density lipoprotein (HDL) receptor SR-BI (scavenger receptor class B type I) mediates the selective uptake of plasma HDL cholesterol by the liver and steroidogenic tissues. As a consequence, SR-BI can influence plasma HDL cholesterol levels, HDL structure, biliary cholesterol concentrations, and the uptake, storage, and utilization of cholesterol by steroid hormone-producing cells. Here we used homozygous null SR-BI knockout mice to show that SR-BI is required for maintaining normal biliary cholesterol levels, oocyte development, and female fertility. We also used SR-BI/apolipoprotein E double homozygous knockout mice to show that SR-BI can protect against early-onset atherosclerosis. Although the mechanisms underlying the effects of SR-BI loss on reproduction and atherosclerosis have not been established, potential causes include changes in (i) plasma lipoprotein levels and/or structure, (ii) cholesterol flux into or out of peripheral tissues (ovary, aortic wall), and (iii) reverse cholesterol transport, as indicated by the significant reduction of gallbladder bile cholesterol levels in SR-BI and SR-BI/apolipoprotein E double knockout mice relative to controls. If SR-BI has similar activities in humans, it may become an attractive target for therapeutic intervention in a variety of diseases.
Lipopolysaccharide-Based Enzyme-Linked Immunosorbent Assay for Experimental Use in Detection of Antibodies to<i>Lawsonia intracellularis</i>in Pigs (2005)

An enzyme-linked immunosorbent assay (ELISA) for Lawsonia intracellularis was developed and compared with a whole-cell antigen-based immunofluorescence antibody test (IFAT). The antigen-containing lipopolysaccharide (LPS) was derived from Percoll gradient purified cultures of L. intracellularis by using a modification of the Westphal hot phenol procedure. The antigen was bound directly to polystyrene 96-well microtiter plates, and the assay was performed in an indirect ELISA format. Specificity and sensitivity values based on 80 known positive and 80 known negative serum samples from controlled experimental trials were 93.7% and 88.7%, respectively. Serological results from a controlled L. intracellularis challenge exposure study confirmed the high specificity and sensitivity of this assay (100% and 99.5%, respectively). Comparisons between the LPS ELISA and the IFAT in detecting anti-Lawsonia antibodies in this controlled study revealed significantly more LPS ELISA-positive pigs than IFAT-positive pigs on days 21, 28, 35, and 42 (P = 0.003, 0.030, 0.002, and 0.006, respectively). This indirect ELISA (LPS ELISA) test is an improved method of detecting antibodies in pigs soon after exposure to L. intracellularis, regardless of isolate type (vaccine or wild type) in experimental studies. The LPS ELISA may be used as a tool to support future research trials on vaccine efficacy and to further understand the immune response induced by L. intracellularis.
A Texas MEOR Application Shows Outstanding Production Improvement Due To Oil Release Effects On Relative Permeability (2012)

Abstract A Microbial Enhanced Oil Recovery (MEOR) application in the Big Wells Field located in Dimmit County, Texas has shown a significant improvement in production—both oil rate and water cut performance. As a result of a specific nutrient injection designed in the laboratory to stimulate in situ, naturally occurring microbes, for this San Miguel sandstone reservoir and its microbial ecology, a marked improvement was seen in the two producing wells to which the treatment was applied. The water cut in one well improved from fifty per cent to fifteen percent. The water cut in a second well improved from fifty-five to thirty-five percent. Although previous field applications of this MEOR process had shown increases in oil production and decreases in water production, water production in this application was completely stopped for a brief time as a result of the treatment. This paper reviews the Big Wells producing well treatments and their results. A specific look at the oil release mechanism of this MEOR process offers an explanation as to how the oil released by these treatments impacts the relative permeability of fluids in the reservoir near the treated wellbores as demonstrated in the field producing well treatments. Similar benefits are seen during the treatment of water injection wells related to performance in adjacent producing wells. The significance of this application is that field evidence supports that production improvements result from the release of oil in sufficient quantities to change the near wellbore relative permeability to both oil and water. Also, it demonstrates that this MEOR technology can be successfully applied to reservoirs in this geographical area and extends the lower threshold for formation permeability suitable for treatment. Having been successfully applied in other parts of North America, this is an important application of this MEOR technology in Texas.
Signatures for network coding (2009)

This paper presents a practical digital signature scheme to be used in conjunction with network coding. Furthermore, the authors' idea simultaneously provides authentication and detects malicious nodes that intentionally corrupt content on the network.