gebhart/patrepeval huggingface dataset:
Steep Sub-Boltzmann Switching in AlGaN/GaN Phase-FETs With ALD VO<sub>2</sub> (2018)

We report the first demonstration of ultralow leakage AlGaN/GaN MOS-HEMTs on silicon substrates loaded at the source with atomic layer deposition (ALD)grown VO <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> metal-insulator transition (MIT) material resistors. The resulting GaN phase-transition FET (phase-FET) shows steep sub-Boltzmann switching in its transfer characteristics in both sweep directions with slopes of ~9.9 and ~28.2 mV/decade at 60 °C. The control MOS-HEMTs and the phase-FETs show more than 12-order on/off ratio with ultralow off-state leakage. Because of the MIT, the drain current and the transconductance also show unconventional behavior. This first demonstration of ultralow leakage steep switching in GaN phase-FETs using integrationfriendly ALD VO <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> opens the door to introducing new functionalities in nitride low-power digital devices, microwave circuits, photonic devices, and power electronics in the GaN-on-silicon platform.
NEW WOODBURY-RAMAN LASER MATERIALS (1963)

Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation M. Geller, D. P. Bortfeld, W. R. Sooy; NEW WOODBURY‐RAMAN LASER MATERIALS. Appl. Phys. Lett. 1 August 1963; 3 (3): 36–40. https://doi.org/10.1063/1.1723564 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentAIP Publishing PortfolioApplied Physics Letters Search Advanced Search |Citation Search
Design of a large-force piezoelectric Inchworm motor with a force duplicator (2013)

A novel piezoelectric Inchworm motor (IWM) that utilizes a cantilever between the load and the extender of the motor have been shown to double the stall load of the motor without compromising on the speed. A simple but effective means to calculate the stall limit is also presented, and applied to both a conventional IWM design as well as the new design. This method was experimentally verified.
Dairy cattle genetics and its applications in Brazil (2012)

The Brazilian dairy industry is based mainly on pasture-oriented, dual purpose systems in the tropical part of the Country, utilizing 'B. taurus' x 'B. indicus' hybrid animals, mostly Holstein/Gir, milked with restricted suckling of calves, which was shown to be more economical than artificial rearing in most circumstances. The Brazilian farmers have maintained for decades the dairy herd intermediate between B. taurus and B. indicus. Results of surveys and census data reveal a wide variation in dairy farm size, which is associated with different genotype use; low-input, smaller farms use a higher proportion of the more resilient, low B. taurus grade cows, while larger farms use more of the higher yielding, higher 'B. taurus' grades.
Evidence for Persistent, Occult Infection in Neonatal Macaques following Perinatal Transmission of Simian-Human Immunodeficiency Virus SF162P3 (2006)

To model human immunodeficiency virus (HIV) perinatal transmission, we studied infection of simian-human immunodeficiency virus (SHIV) SF162P3 in 10 pregnant Macaca nemestrina females and their offspring. Four of nine infants born to and suckled by these dams had evidence of infection, a transmission rate of 44.4% (95% confidence interval, 13.7% to 78.8%). We quantified transplacentally acquired and de novo Env-specific immunoglobulin G (IgG), IgM, and neutralizing antibodies in newborns. Transmission of escape variants was confirmed. In utero infection (n = 1) resulted in high viremia, depletion of peripheral CD4+ T cells, and rapid evolution of env in blood and tissues. Peripartum or postpartum SHIV infection (n = 3) resulted in postacute viral control that was undetectable by very sensitive multiplex PCR, despite increasing antibodies. Seropositive infants with highly controlled viremia had homogeneous peripheral blood env sequences, and their tissues had <3 copies per million cells. A high incidence of seropositive virus-low or -negative SHIV infection in infant macaques has implications for HIV type 1 perinatal transmission and detection.
A PAC-Bayesian Approach to Spectrally-Normalized Margin Bounds for Neural Networks (2017)

We present a generalization bound for feedforward neural networks in terms of the product of the spectral norm of the layers and the Frobenius norm of the weights. The generalization bound is derived using a PAC-Bayes analysis.
The double‐bundle technique for anterior cruciate ligament reconstruction: a systematic overview (2006)

In traditional anterior cruciate ligament reconstruction, there is a subset of patients complaining of knee instability, especially rotational instability, and athletes not able to return to their preinjury level of sports activity. Currently, controversy exists over the usefulness of the double bundle technique (DBT) in addressing these problems. In order to evaluate the DBT, we completed a literature review from 1969 to February 2006 focusing on anatomy, magnetic resonance imaging, graft incorporation, biomechanics, kinematics, surgical techniques, complications and outcome. The DBT is not a standardized technique, which makes it difficult to compare results. Cadaver studies have proven biomechanical advantages with respect to ap-stability, but assessing the rotational stability remains difficult. There is a lack of available outcome studies with sufficient follow-up to demonstrate the potential advantages of DBT. The theoretical advantages of DBT require careful evaluation with outcome, biomechanical and kinematic studies. In addition, studies are needed to address issues such as graft incorporation and complications. An advantage offered by DBT is the possibility to identify rupture patterns that can lead to surgical preservation of an intact and augmentation of an injured bundle. The approach of augmentating a single bundle technique reconstruction with adequate anterior-posterior but poor rotational stability is promising.
G Protein-Coupled Receptor 30 Is Critical for a Progestin-Induced Growth Inhibition in MCF-7 Breast Cancer Cells (2002)

The issue of how progesterone affects mammary gland growth is controversial, and the mechanism governing the effects of the hormone remains mostly unknown. We have previously shown that G protein-coupled receptor 30 (GPR30) is a progestin target gene whose expression correlates with progestin-induced growth inhibition in breast cancer cells. In this study, we investigate the role of GPR30 in regulating cell proliferation and mediating progestin-induced growth inhibition. When progestin failed to inhibit the growth of MCF-7 cells and instead stimulated growth, GPR30 was down-regulated. In this way, the inhibitory or stimulatory affects that progestin has on proliferation correlated with the level of expression of GPR30. Transient expression of GPR30 resulted in a marked inhibition of cell proliferation independent of estrogen treatment. GPR30 antisense was used to evaluate the role of GPR30 expression in progestin-induced growth inhibition. A diminished GPR30 mRNA expression by the antisense stimulated growth. Interestingly, GPR30 antisense abrogated the growth inhibitory effect of progestin and progesterone. Indeed, progestin induced 1) a reduction in cell proliferation, 2) G1-phase arrest, and 3) down-regulation of cyclin D1 was diminished. These data suggest that the orphan receptor, GPR30, is important for the inhibitory effect of progestin on growth.
Identification of zinc‐binding ligands in the Class II fructose‐ 1,6‐bisphosphate aldolase of <i>Escherichia coli</i> (1993)

An expression and mutagenesis system for the E. coli Class II fructose-1,6-bisphosphate aldolase has been created by modification of the vector pKfda (Biochem. J. 257 (1989) 529-534). Large amounts of Class II aldolase (about 1 g/l in crude extracts), with properties consistent with those previously reported for the naturally occurring enzyme (Biochem. J. 169 (1978) 633-641) are obtained. The enzyme contains 2 zinc ions per enzyme dimer. We have investigated the nature of the zinc-binding site of the enzyme by site-directed mutagenesis. His-108, His-111, Cys-112 and His-142 were identified as possible zinc-binding ligands by sequence alignments and comparisons with other known zinc-containing enzymes. Mutation of these residues identified His-108 and His-111 as two of the ligands directly responsible for the tight binding of zinc. Mutation of the other two residues results in only a small effect on the amount of zinc bound per monomer and a corresponding change in specific activity. These residues are, therefore, unlikely to be directly involved in zinc binding, but may be indirectly involved in some manner in the zinc-binding environment.
Similarity in Semantic Graphs: Combining Structural, Literal, and Ontology-based Measures (2015)

Semantic graphs provide a valuable way to represent data while preserving real world meaning. As these graphs become more popular for storing large quantities of data, it is important to have methods of determining similarity between nodes in the graph. This paper extends previous structural similarity algorithms by taking advantage of meaning contained in a graph’s literals and the graph’s ontology and allowing users to control how much each type of similarity effects overall scores. Preliminary tests indicate that including these sources of similarity increases scores in way that is better aligned with human intuition.
MIMO systems with one directional antenna (2010)

The use of one directional antenna in MIMO systems utilizes the fact that faded propagation is not random in azimuth, but has local maxima. Thus it can improve the link performances (Throughput, Bit Error Rate and Signal to Noise), provided that the directional antenna can be rotated towards the optimal direction. Indoor tests with two antennas (one monopole and one microstrip) show typical capacity improvement of 50% to 80% in comparison to two omni directional antennas.
Three-phase (LC)(L)-type series-resonant converter: Design and experimental results (2010)

This paper presents the design and experimental results of a three-phase (LC)(L)-type DC-DC series-resonant converter with capacitive output filter. Based on an approximate analysis a design procedure is presented with a design example. Intusoft simulation results for the designed converter are presented for input voltage and load variations. Experimental results obtained in a 300 W converter are presented. It was observed that the magnetizing inductance is low enough eliminating the need for external parallel inductance. Major advantages of this converter are the leakage and magnetizing inductances of the high-frequency transformer are used as part of resonant circuit and the output rectifier voltage is clamped to the output voltage. Also, the converter operates in soft-switching for the inverter switches with a narrow frequency control range and the tank current decreases with the load current.
A transformer-flux-balance controller for a high-frequency-link inverter with applications for solid-state transformer, renewable/alternative energy sources, energy storage, and electric vehicles (2011)

This paper outlines a controller that balances the flux of the isolation transformer in a multi-stage high-frequency-link (HFL) bi-directional inverter. It comprises a primary-side high-frequency (HF) dc/ac converter (referred to as Bridge I) followed by cascaded ac/pulsating-dc and pulsating-dc/ac converters (referred to as Bridge II and Bridge III) on the secondary side of the transformer. The overall inverter is preceded by a capacitive filter and is followed by an output LC filter. The issue with the flux balance arises when energy is fed back from the ac output of the inverter to the dc energy source. The problem arises in the HFL inverter in this bi-directional mode since without an intermediate dc-link capacitor, the output of Bridge III, which is pulsating, has an additional problem with the variation in the maximum amplitude of each pulse due to an underlying beat frequency. Without addressing the flux imbalance, the HF transformer may saturate and have an impact on its size and thermal sustenance. The simulation results of the flux-balance controller shows satisfactory performance.
Gas Turbine Compressor Operating Environment and Material Evaluation (1989)

The reliability and performance of a gas turbine compressor is strongly dependent upon the environment in which it operates, the materials which are used, and the filtration system. Erosion and to a certain extent fouling can be controlled by the filtration system, but corrosion is largely controlled through site and material selection. The factors which determine the corrosivity of a site are humidity, the concentration of acid-forming gases, and the composition of particulates. The interrelationships of these factors are discussed with an aim of reducing their impact on compressor operation. A necessary condition for corrosion is the presence of moisture. The acidity of the moisture results from its interaction with the gases and particulates of the environment. The details of these interactions which are important to turbine operators are discussed. A considerable amount of corrosion testing of base materials and coatings has been performed and this is reviewed. A table is presented for selection of compressor materials based on the nature of the site environment and the type of compressor filtration.
5TH International Conference on the Biogeochemistry of Trace Elements July 11-15, 1999 Vienna, Austria, Volume 1 (1999)

These are the extended abstracts for the keynote lectures, special symposia and technical sessions of the 5th International Conference on the Biogeochemistry of Trace Elements held at the Technical University Vienna, July 11-15, 1999. The conference is dedicated to explore and discuss contemporary and emerging issues in biogeochemistry research of trace elements. Conference topics cover important aspects of fundamental research such as kinetics and mechanisms of the fate of trace elements, including radionuclides, in soils and related ecosystems and methods for their assessment.
Scanning electron microscopy of the irradiated mouse bladder urothelium. (1986)

The luminal surface of mouse bladder urothelium was studied by scanning microscopy 1 year after irradiation with 0, 10 and 20 Gy respectively. The controls that were anaesthetized only displayed surface characteristics indistinguishable from normal urothelium. Irradiation with 10 Gy did not result in marked overall changes in the scanning electron microscopic features of the luminal aspect, but in some areas alterations comparable to the alterations after 20 Gy were observed. After irradiation with 20 Gy focal hyperplastic areas, superficial early ulceration and dedifferentiation of cover cells were seen. The dedifferentiation to featureless cells is probably not associated with increased proliferation, which in focally hyperplastic areas gives rise to a cobblestone or fuzzy appearance with small superficial cells and with many different surface features. The featureless cells may represent degenerative or agonal changes only, but a preneoplastic nature cannot be ruled out.
Functional properties of plant proteins. Part 2. Selected physicochemical properties of native and denatured protein isolates from faba beans, soybeans, and sunflower seed (1981)

Abstract Functional properties — as solubility, water and oil adsorption, emulsifying capacity, emulsion activity and stability — of protein isolates from faba beans, soybeans and sunflower seed depending on the isolation process were determined. Proteins isolated under mild conditions, it means by precipitation using dialysis or dilution of salt extracts with water, show the highest solubility, characterized by a sharp minimum of solubility at a rather narrow range of pH. An incubation of the precipitated proteins at low pH (pH 2) results in a decrease of the solubility on the alcaline and acidic part of the solubility profile. On the contrary to the decreased solubility, the proteins denatured by acid show an increased water adsorption capacity. Depending on the kind of protein and the conditions of preparation these values can reach the manifold ones of the control. Smaller increases of oil adsorption in acid‐denatured proteins were found, too. The emulsion activity and stability were not or only slightly influenced, but the emulsifying capacity was strongly decreased by the denaturation procedure. The emulsifying capacity was influenced by the solubility of the protein, but a strong correlation does not exist. The high water adsorption of Promine D can be reached by the other plant proteins after denaturation. The sunflower protein showed the highest emulsifying capacity. Increasing the pH from the isoelectric range to 7 improves all studied functional properties.
Estimation of rate of heat release by means of oxygen consumption measurements (1980)

Abstract Measurement of the rate of oxygen consumption provides a simple, versatile and powerful tool for estimating the rate of heat release in fire experiments and fire tests. The method is based on the generalization that the heats of combustion per unit of oxygen consumed are approximately the same for most fuels commonly encountered in fires. A measurement of the rate of oxygen consumption can then be converted to a measure of rate of heat release. Data on heats of combustion are presented to support this generalization. The applicability of the technique to combustion under fire conditions is examined, possible sources of error in the measurements are discussed, and applications of the method are reviewed. It is concluded that the accuracy of oxygen consumption based rate of heat release measurements should compare favorably with those derived from conventional calorimetric measurements.
The Synthesis of 4,5-Methylenephenanthrene (1941)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Synthesis of 4,5-MethylenephenanthreneW. E. Bachmann and John Clark SheehanCite this: J. Am. Chem. Soc. 1941, 63, 1, 204–206Publication Date (Print):January 1, 1941Publication History Published online1 May 2002Published inissue 1 January 1941https://pubs.acs.org/doi/10.1021/ja01846a046https://doi.org/10.1021/ja01846a046research-articleACS PublicationsRequest reuse permissionsArticle Views124Altmetric-Citations25LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts
CT hybridomas: tumor cells capable of lysing virally infected target cells. (1982)

By fusing primed murine lymphocytes with a syngeneic T cell lymphoma, we have been able to select for H-2-restricted, virus-specific cytotoxic T cell hybridomas (CTH). These T cell hybrids, which replicate in ordinary tissue culture medium or in ascites, are capable of lysing virally infected target cells, and their activity is facilitated by the presence of lectins in the assay medium. Unlike cells mediating lectin nonspecific lysis, these hybridomas are H-2 restricted and specific for single viral proteins. The ability to maintain these cells in culture for over 18 mo and to pass them in vivo without loss of activity or specificity indicates that they will provide sufficient material for the analysis of surface proteins and genetic information required for the recognition and lysis of virally infected cells by killer T cells.
Target motion prediction and tracking by bi-directional dynamic associative neural network (2002)

Derived from simple neural network models, a bidirectional dynamic associative neural network for tracking and predicting target motion is presented. The network applies a retrospective autoregression model for continual updating of the network parameters and computing the future motion states of the target. Simulation results show improvements over previous models in the accuracy of prediction
Switched-capacitor power converters with integrated low dropout regulators (2001)

A dual-cell switched-capacitor power converter with output PMOSs serving as pass transistors of a low drop-out regulator (LDR) is presented. Dual-loop feedback compensation with capacitor multiplier is employed. This switching LDR is fabricated using a 0.6 /spl mu/m AMS CMOS process. With an input voltage of 1.8 V, a regulated output voltage of 3 V is obtained, achieving an efficiency of 81% when driving a load of 100 mA at an equivalent switching frequency of 460 kHz.
Lateral high-voltage devices using an optimized variational lateral doping (1996)

Abstract A novel high-voltage generic power device structure based on an optimum variation in the lateral doping profile is proposed. The structure is implemented with a series of zones having piece-wise constant doping located in the field sustaining region of the device. The structure has been evaluated as an integrated component in a range of high-voltage devices, including MOST, JFET and BJT. The simulation results show the breakdown voltages achieved by the different structures can reach 85% of that, calculated for an equivalent parallel plane abrupt junction. The on-resistance of each device is very low while the switching speed is very high. Among these devices, the MOST shows the best improvement in performance. Since these lateral devices are compatible with modern sub-micrometre IC-technology, and are capable of self-isolation, they are very attractive for applications in HVIC and PIC processes.
19.4: Reflective Backlights for Liquid Crystal Displays (2001)

Abstract A novel reflective backlight based on OLED technology has been developed for use with monochrome transmissive LCDs. The rear metal cathode of the OLED in combination with a polarisation preserving diffuser is used as the reflector for the LCD, thereby avoiding the use of an inefficient transflector. Both green and blue reflective backlights are reported which provide greater luminous efficacies and brighter reflective states than conventional transflective LCDs illuminated with either LED or inorganic electroluminescent backlights.