gebhart/patrepeval huggingface dataset:
System-level PVT variation-aware power exploration of on-chip communication architectures (2009)

With the shift towards deep submicron (DSM) technologies, the increase in leakage power and the adoption of power-aware design methodologies have resulted in potentially significant variations in power consumption under different process, voltage, and temperature (PVT) corners. In this article, we first investigate the impact of PVT corners on power consumption at the system-on-chip (SoC) level, especially for the on-chip communication infrastructure. Given a target technology library, we then show how it is possible to “scale up” and abstract the PVT variability at the system level, allowing characterization of the PVT-aware design space early in the design flow. We conducted several experiments to estimate power for PVT corner cases, at the gate level, as well as at the higher system level. Our preliminary results are very interesting, and indicate that (i) there are significant variations in power consumption across PVT corners; and (ii) the PVT-aware power estimation problem may be amenable to a reasonably simple abstraction at the system level.
The Reaction of Acetals with Malonic Acid and its Derivatives. A Contribution to the Knowledge of the Knoevenagel-Doebner Reaction (1957)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Reaction of Acetals with Malonic Acid and its Derivatives. A Contribution to the Knowledge of the Knoevenagel-Doebner ReactionJ. Klein and Ernst D. BergmannCite this: J. Am. Chem. Soc. 1957, 79, 13, 3452–3454Publication Date (Print):July 1, 1957Publication History Published online1 May 2002Published inissue 1 July 1957https://pubs.acs.org/doi/10.1021/ja01570a037https://doi.org/10.1021/ja01570a037research-articleACS PublicationsRequest reuse permissionsArticle Views1222Altmetric-Citations35LEARN 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
Multimodal access control systems which combines classical access control methods with biometric methods (2010)

Research topic covered was the identification of a characteristic method of authentication based on biometric fingerprint reading to achieve a solution to secure communications. Biometric identification solution based on fingerprint reading was combined with conventional authentication methods to achieve more secure communications and computers better protected.
Retinal oscillations carry visual information to cortex (2009)

Thalamic relay cells fire action potentials that transmit information from retina to cortex. The amount of information that spike trains encode is usually estimated from the precision of spike timing with respect to the stimulus. Sensory input, however, is only one factor that influences neural activity. For example, intrinsic dynamics, such as oscillations of networks of neurons, also modulate firing pattern. Here, we asked if retinal oscillations might help to convey information to neurons downstream. Specifically, we made whole-cell recordings from relay cells to reveal retinal inputs (EPSPs) and thalamic outputs (spikes) and then analyzed these events with information theory. Our results show that thalamic spike trains operate as two multiplexed channels. One channel, which occupies a low frequency band (<30 Hz), is encoded by average firing rate with respect to the stimulus and carries information about local changes in the visual field over time. The other operates in the gamma frequency band (40-80 Hz) and is encoded by spike timing relative to retinal oscillations. At times, the second channel conveyed even more information than the first. Because retinal oscillations involve extensive networks of ganglion cells, it is likely that the second channel transmits information about global features of the visual scene.
Three dimensional vision system for intelligent vehicles (2002)

This paper describes a three dimensional vision system for intelligent vehicles. After reviewing related works, the paper focuses on a stereo vision system which measures the distance to the vehicle in front using trinocular triangulation. Custom processor architectures were developed for low mass-production cost, real-time operation, low power consumption, and small physical size. The system was installed in a trunk of a car and evaluated successfully on highways.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Sum of the Parts: Mass Spectrometry-Based Metabolomics (2013)

Metabolomics is a rapidly growing field of research used in the identification and quantification of the small molecule metabolites within an organism, thereby providing insights into cell metabolism and bioenergetics as well as processes important in clinical medicine, such as disposition of pharmaceutical compounds. It offers comprehensive information about thousands of low-molecular mass compounds (<1500 Da) that represent a wide range of pathways and intermediary metabolism. Because of its vast expansion in the past two decades, mass spectrometry has become an indispensable tool in "omic" analyses. The use of different ionization techniques such as the more traditional electrospray and matrix-assisted laser desorption, as well as recently popular desorption electrospray ionization, has allowed the analysis of a wide range of biomolecules (e.g., peptides, proteins, lipids, and sugars), and their imaging and analysis in the original sample environment in a workup free fashion. An overview of the current state of the methodology is given, as well as examples of application.
Uniform nomenclature for bacterial plasmids: a proposal (1976)

[This corrects the article on p. 168 in vol. 40.].
Maturing ion-implantation technology and its device applications in SiC (2002)

Ion-implantation is an indispensable technique for planar selective area doping of SiC devices, because thermal diffusion of the desired dopants at temperatures where SiC doesn't decompose is not possible. Incongruent evaporation of Si from the SiC wafer during post-implantation annealing limits the maximum annealing temperature that can be used to repair the lattice damage and steer the implant into the substitutional lattice positions. Other problems include the nonstoichiometric disturbances caused by the ion-implantation, which result in non-uniform Si and C atom concentration and vacancy concentration depth distributions in the implanted region; and the difficulty in restoring the lattice quality back to the virgin level if as-implant lattice damage is of amorphous level. Ion-implantation in SiC needs to be performed at an elevated temperature in the range of 500 - 1000 /spl deg/C. An additional problem is the deep ionization energies of the useful donor (/spl sim/ 80 meV) and acceptor (> 240 meV) impurities in SiC, which limit the maximum carrier concentration . Results of donor, acceptor, and compensation species ion-implantations in 6H- and 4H-SiC are presented.
Angiopoietin 2 mediates microvascular and hemodynamic alterations in sepsis (2013)

Septic shock is characterized by increased vascular permeability and hypotension despite increased cardiac output. Numerous vasoactive cytokines are upregulated during sepsis, including angiopoietin 2 (ANG2), which increases vascular permeability. Here we report that mice engineered to inducibly overexpress ANG2 in the endothelium developed sepsis-like hemodynamic alterations, including systemic hypotension, increased cardiac output, and dilatory cardiomyopathy. Conversely, mice with cardiomyocyte-restricted ANG2 overexpression failed to develop hemodynamic alterations. Interestingly, the hemodynamic alterations associated with endothelial-specific overexpression of ANG2 and the loss of capillary-associated pericytes were reversed by intravenous injections of adeno-associated viruses (AAVs) transducing cDNA for angiopoietin 1, a TIE2 ligand that antagonizes ANG2, or AAVs encoding PDGFB, a chemoattractant for pericytes. To confirm the role of ANG2 in sepsis, we i.p. injected LPS into C57BL/6J mice, which rapidly developed hypotension, acute pericyte loss, and increased vascular permeability. Importantly, ANG2 antibody treatment attenuated LPS-induced hemodynamic alterations and reduced the mortality rate at 36 hours from 95% to 61%. These data indicate that ANG2-mediated microvascular disintegration contributes to septic shock and that inhibition of the ANG2/TIE2 interaction during sepsis is a potential therapeutic target.
Genetic Analysis of the AdnA Regulon in <i>Pseudomonas fluorescens</i> : Nonessential Role of Flagella in Adhesion to Sand and Biofilm Formation (2003)

AdnA is a transcription factor in Pseudomonas fluorescens that affects flagellar synthesis, biofilm formation, and sand adhesion. To identify the AdnA regulon, we used a promoterless Tn5-lacZ element to study the phenotypes of insertion mutants in the presence and absence of AdnA. Of 12,000 insertions, we identified seven different putative open reading frames (ORFs) activated by AdnA (named aba for activated by AdnA). aba120 and aba177 showed homology to flgC and flgI, components of the basal body of the flagella in Pseudomonas aeruginosa. Two other insertions, aba18 and aba51, disrupted genes affecting chemotaxis. The mutant loci aba160 (possibly affecting lipopolysaccharide synthesis) and aba175 (unknown function) led to loss of flagella. The mutant bearing aba203 became motile when complemented with adnA, but the mutated gene showed no similarity to known genes. Curiously, aba18, aba51, aba160, and aba203 mutants formed biofilms even in the absence of AdnA, suppressing the phenotype of the adnA deletion mutant. The combined findings suggest that flagella are nonessential for sand attachment or biofilm formation. Sequence and promoter analyses indicate that AdnA affects at least 23 ORFs either directly or by polar effects. These results support the concept that AdnA regulates cell processes other than those directly related to flagellar synthesis and define a broader cadre of genes in P. fluorescens than that described so far for its homolog, FleQ, in P. aeruginosa.
A Model for Emissions from ZnS:Ce<sup>3+</sup> and SrS:Ce<sup>3+</sup> Thin-Film Electroluminescent Devices (1992)

ZnS:CeF 3 thin-film electroluminescent devices are prepared in the vacuum and the oxygen atmosphere by means of an electron-beam evaporation method. The Auger depth profiles for the ZnS films prepared in the oxygen atmosphere show that oxygen substitutes for sulfur. The luminescent decay time for 475 nm and 530 nm emissions of Ce 3+ ions reveals an increase, particularly in the 530 nm emission when the films are prepared in the oxygen atmosphere. The experimental results suggest that a nonradiative energy transfer via a certain defect occurs in ZnS:Ce 3+ films. A simple model for emissions from ZnS:Ce 3+ films is proposed, based on the Auger type-nonradiative energy transfer via sulfur vacancies. The electroluminescent characteristics seen in SrS:Ce 3+ films are also discussed on the basis of the same mechanism.
The “Interior Resonance” Problem Associated with Surface Integral Equations of Electromagnetics: Numerical Consequences and a Survey of Remedies (1990)

ABSTRACT It is well known that certain surface integral equations used to describe exterior electromagnetic scattering problems may not produce unique solutions if applied to closed geometries that also represent resonant cavities. This paper explores the numerical consequences of the uniqueness problem. The "interior resonance" problem and several proposed remedies are illustrated using the eigenvalues of the integral operators for circular cylinders. Although an eigenvalue of the continuous integral operator vanishes at a resonance frequency, discretization error may prevent the associated matrix eigenvalue from becoming appreciably small. Inaccurate results are due to an incorrect balance between the excitation and the small matrix eigenvalue near a resonance frequency.
Selection of temporally dithered codes for increasing virtual depth of field in structured light systems (2010)

Temporally dithered codes have recently been used for depth reconstruction of fast dynamic scenes using off-the-shelf DLP Projectors. Even though temporally dithered codes overcome the DLP projector's limited frame rate, limitations with the optics create challenges for using these codes in an actual structured light system. Specifically, to maximize the amount of light leaving the projector, projector lenses are designed to have large apertures resulting in projected patterns that appear in focus over a narrow depth of field. In this paper, we propose a method to design temporally dithered codes in order to extend the virtual depth of field of a structured light system. By simulating the PWM sequences of a DLP projector and the blurring process from the projector lens, we develop algorithms for designing and decoding projection patterns in the presence of out of focus blur. Our simulation results show a 47% improvement in the depth of field when compared against randomly selected codewords.
Credit Scoring and the Equal Credit Opportunity Act (1978)

While credit-scoring systems have promoted more efficient and, arguably, more equitable extension of credit, the use of such systems by commercial lenders raises new and significant legal issues. In this Article, the author explains the formation and operation of credit-scoring; compares this method to the less precise, more subjective judgmental approach; and examines some of the legal issues inherent in the use of such systems.
Investigation of Voltage Loss in Vanadium Redox Flow Battery (2010)

Abstract not Available.
Phased array antenna with a multilayer substrate (1994)

A phased array antenna, composed of microstrip patch antennas for scanning a vertical shaped beam over a horizontal range of ±40 degrees , has been developed. A problem in shaping the beam and scanning it over a wide range is how to mount the feed in a small space. In the paper, an application of the parallel feed to the vertical feed system is presented. Further, the active element pattern of the microstrip patch antenna is investigated, and the radiation characteristics of the phase array antenna are estimated in order to use microstrip patch antennas over a wide-range and as an accurate scanning antenna. The analysis is applied to the large scale antenna after it is confirmed by test results using some small arrays.
Design and feasibility study for the application of an inflatable rubber structure in a navigation lock (2014)

The results revealed that exposure to Ag-NPs adversely affected sperm motility, morphology, viability, and concentration. Ag-NPs also induced oxidative stress and lipid peroxidation in testicular tissue. The exposure to Ag-NPs decreased serum FSH, LH, and testosterone hormones. Additionally, comet assay revealed DNA degeneration in the testicular tissue of rats exposed to Ag-NPs. Histopathological examination showed various histological alterations in the testes of rats intoxicated with Ag-NPs. Furthermore, co-administration of Zn-NPs ameliorated most of the toxic effects of Ag-NPs via their antioxidative capacity.
Effect of Mexiletine on Thermal Allodynia and Hyperalgesia in Diabetic Mice (2000)

The antinociceptive effect of mexiletine in diabetic mice was examined. Tail-flick latencies at heat intensity of 35 and 50 V in diabetic mice were shorter than those in non-diabetic mice. In diabetic mice, mexiletine increased the tail-flick latency at 35 V to the level observed in non-diabetic mice. The tail-flick latency at 50 V in diabetic mice, but not in non-diabetic mice, was increased by pretreatment with capsaicin (0.56 nmol, i.t., 24 h). The antinociceptive effect of mexiletine in diabetic mice was reduced by capsaicin. These results suggest that the mexiletine-induced antinociception in diabetic mice involves the inhibition of the nociceptive transmission of capsaicin-sensitive primary afferent fibers.
Advances in voltammetric techniques (1974)

B. Fleet and R. D. Jee, Sel. Annu. Rev. Anal., 1974, 4, 1 DOI: 10.1039/AS9740400001
Mechanisms of catalytic oxidation of hydrocarbons in a solid-electrolyte fuel cell (1983)

Results presented in this paper are part of an ongoing investigation of the electrocatalytic mechanisms involved in the anodic oxidation of hydrocarbons and the cathodic reduction of O2 in a fuel cell employing Sc2O3- or Y2O3-stabilized ZrO2. The general status of the electrochemical studies is reviewed. The particular focus of this paper is on experiments performed to test the assumption that the solid electrolyte plays an important role in electrocatalysis compared to the porous metallic electrode. It has been observed that great enhancement in reaction-rates and current drawn at a given overpotential occurs when the electrolyte is blackened by electrolysis, forming a suboxide of zirconia, ZrO2-x. Simple potentiometric measurements with H2 as the fuel and air as oxidant have been made on both the unblackened and blackened ZrO2-Sc2O3 system.
[Evaluation of quality of life in patients with Graves orbitopathy and its influencing factors]. (2019)

<b>Objective:</b> To evaluate life quality of Graves orbitopathy (GO) patients using Graves orbitopathy quality-of-life questionnaire (GO-QOL) and explore the influence factors of the quality of life of GO patients. <b>Methods:</b> This was a cross-sectional study conducted at The Third Affiliated Hospital of Southern Medical University including 145 newly diagnosed GO patients. All the patient answered the GO-QOL and underwent ophthalmic and endocrine assessments. The main outcome measures were the scores on GO-QOL 2 subscales: visual functioning and appearance. Based on the classification in the guideline of European Group on Graves Orbitopathy (EUGOGO), the patients were divided into two groups: mild and moderate to severe groups. Then the scales between these two groups were compared and influencing factors were analyzed. Finally, the floor and ceiling effects were assessed. <b>Results:</b> The GO-QOL scores for the subscales of visual functioning and appearance were 70.91±27.83 and 61.29±26.37 respectively in 145 GO patients. Visual functioning and appearance were lower in moderate to severe group (62.71±28.77 and 57.52±26.49, respectively) than in mild group (85.58±18.77 and 68.02±24.99, respectively).The GO-QOL scores for the visual functioning subscale were significantly correlated with age (<i>P</i>=0.002), clinical active score (<i>P</i>=0.011) and the degree of diplopia (<i>P</i>=0.00, <i>R</i>(2)=0.373). The GO-QOL scores for the appearance were significantly correlated with sex (<i>P</i>=0.05) and thyroid-stimulating hormone levels (<i>P</i>=0.001, <i>R</i>(2)=0.231). No significant ceiling or floor effects were observed for either subscale of the GO-QOL. <b>Conclusions:</b> With the aggravation of the disease, the quality of life of GO patients is getting worse and worse. The main influencing factors of the quality of life of GO patients include age, gender, diplopia, clinical active score and thyroid-stimulating hormone levels. Close attention needs to be paid to the quality of life of GO patients.
Multivariable Adaptive Control Design with Applications to Autonomous Helicopters (2002)

Control of autonomous helicopters in the presence of environmental and system uncertainties is a challenging task. These uncertainties not only change the dynamics of the system but the trim inputs themselves. A viable multivariable adaptive control methodology is proposed that is applicable for general maneuvers with arbitrary speeds and high-bandwidth requirements. The control design methodology achieves global stability and is tested on a high-fidelity simulation of a real life autonomous helicopter. The results indicate a satisfactory tracking performance even as the speeds and bandwidth requirements are increased well beyond hover and as the parametric uncertainties were increased by about 20% of their nominal values.
Continuous thermal bulk copolymerization of styrene and maleic anhydride (1999)

Thermal bulk copolymerization of styrene (monomer 1) and maleic anhydride (monomer 2) was carried out in a continuous stirred tank reactor (CSTR) with a double helical ribbon-anchor impeller. A series of experimental runs under different operating conditions (average residence time, reaction temperature, and the composition in the inflow stream) were done, which showed that steady states could be approached. The effect of operating conditions on monomer conversion and copolymer composition was discussed. A CSTR model was established and the model parameters from the semicontinuous tests were used to predict conversions and copolymer compositions of the continuous process under transient and steady states. Kinetics from the semicontinuous bulk copolymerization were transferable to the continuous process. The modeling work for the continuous process showed that the same result as in a semicontinuous process could be obtained; the numerical method in which the gel effect on the copolymerization was incorporated exhibited excellent agreement between the model calculation and the experimental data. However, when using the assumption that k22 = 0, k21[M1] ≫ k12[M2], (RI/2kt)1/2 is a constant, and V is a constant, the predictions from the analytical solution to the model were in good agreement with the actual process data. © 1999 John Wiley & Sons, Inc. J Appl Polym Sci 73: 615–622, 1999