gebhart/patrepeval huggingface dataset:
Rapidly tunable, narrow-band infrared filter arrays (2023)

Tunable filters can use Fano metasurface designs having extremely narrow transmission bands. The Fano metasurface can comprise dielectric or semiconductor materials and can produce transmission bands with quality factors well in excess of 1000—at least a factor of 50 greater than typical metamaterial-based infrared resonances. Numerical simulations of these metasurfaces show that the spectral position of the passband can be changed by slightly changing the position of a small dielectric perturbation block placed within the near-field of the resonator by using simple electromechanical actuation architectures that allow for such motion. An array of independently tunable narrowband infrared filters can thereby be fabricated that only requires deep-subwavelength motions of perturbing objects in the resonator's near-field.
CLASSIFICATION AND AN ALGORITHMIC APPROACH TO THE RECONSTRUCTION OF FEMORAL DEFICIENCY IN REVISION TOTAL HIP ARTHROPLASTY (2003)

Corresponding author:, Craig J. Della Valle, MD, Midwest Orthopaedics at Rush, 1725 West Harrison Street, Suite 1063,, Chicago, IL 60612. E-mail address: [email protected]
2 λ switch (2020)

We demonstrate an elastic multi-wavelength selective switch with up to two wavelength switching capability per crosspoint. We fabricated the switch in a silicon photonics foundry and demonstrated a 17 nm tuning range for ring resonators, with a mean path loss of 2.43 dB. This is a 70% reduction in path loss as compared to previous generations, and we demonstrate a high-speed pulse-amplitude-modulation-4 transmission at 111 Gbps through different paths of the switch.
Fabrication of Ordered Porous SWNT‐Polymer Nanocomposites by Emulsion Templating (2007)

Abstract Porous polymer films were produced from water‐in‐oil emulsion. Aqueous droplets were dispersed in PMMA/benzene solution without any emulsifier. Simple dip‐coating of the emulsion on a substrate and air‐drying led to hexagonally ordered porous thin films. Porous single walled carbon nanotubes (SWNT)‐polymer composite films were prepared through the similar procedures also. The electrical conductivity of porous SWNT‐polymer composites increased with the content of SWNT.
Methodology to Perform Conjugate Heat Transfer Modeling for a Piston on a Sector Geometry for Direct-Injection Internal Combustion Engine Applications (2019)

&lt;div class="section abstract"&gt;&lt;div class="htmlview paragraph"&gt;The increase in computational power in recent times has led to multidimensional computational fluid dynamics (CFD) modeling tools being used extensively for optimizing the diesel engine piston design. However, it is still common practice in engine CFD modeling to use constant uniform boundary temperatures. This is either due to the difficulty in experimentally measuring the component temperatures or the lack of measurements when simulation is being used predictively. This assumption introduces uncertainty in heat flux predictions. Conjugate heat transfer (CHT) modeling is an approach used to predict the component temperatures by simultaneously modeling the heat transfer in the fluid and the solid phase. However, CHT simulations are computationally expensive as they require more than one engine cycle to be simulated to converge to a steady cycle-averaged component temperature. Furthermore, a piston design optimization study would involve large numbers of simulations and including CHT modeling would be impractical considering the computational expense. Accordingly, in the current publication, an approach to perform piston CHT simulations on sector geometries is proposed to reduce the computational time significantly with minimal impact on the prediction accuracy. The study was performed on a heavy-duty engine at a high load operating condition of 20 bar gross IMEP and engine speed of 1800 rev/min. Since the open cycle portion of the engine cycle cannot be simulated on a sector mesh, a scaling methodology was developed to account for the contribution of the open cycle to the wall heat transfer. The average and the maximum piston temperature from the sector CHT approach were predicted within 35 K and 25 K of the full geometry CHT simulation respectively. Additionally, the distribution of the temperature within the solid piston obtained from the sector CHT simulation was compared to the temperature distributions from a full CHT geometry and the results showed good agreement. The sector CHT approach resulted in a ~8x reduction in computational time on a 1/7 sector geometry.&lt;/div&gt;&lt;/div&gt;
On-Chip Batteries as Distributed Energy Sources in Heterogeneous 2.5D/3D Integrated Circuits (2023)

Energy efficiency in digital systems faces challenges due to the constraints imposed by small-scale transistors. Moreover, the growing demand for portable consumer electronics necessitates the use of compact energy sources. To address these challenges, heterogeneous 3D IC technology has emerged as a promising solution for the former. Regarding the latter, we propose the concept of distributed batteries within a heterogeneous 3D IC. This approach involves utilizing multiple smaller batteries with different specifications among different modules of 3D ICs. This approach optimizes performance and overcomes limitations associated with both 3D ICs and conventional power delivery methods. Distributed batteries play a vital role in effectively managing the heat generated by energy sources and modules within a 3D IC. Furthermore, they contribute to achieving a uniform distribution of heat throughout the entire structure, which ultimately ensures the optimal performance of the batteries and modules. The simulation results indicate a 40 percent enhancement in achieving a more even distribution of generated heat. Additionally, the proposed distributed battery techniques improve power delivery, enhance reliability, and enable optimized voltage regulation while improving efficiency. In addition to the primary benefits, alternative configurations of the proposed approach can offer extra energy storage capacity and act as efficient electromagnetic shields, resulting in an impressive reduction of external electromagnetic noises by 60 dB.
Service development and deployment in H.323 and SIP (2002)

Among the different solutions providing multimedia teleconferencing services over IP networks, two approaches are of major importance: H.323 standardized by the ITU-T and SIP standardized by the IETF. Some comparisons on a system level have been published, but the service architectures have rarely been addressed in the literature. In the near future an important driver for multimedia business will be the services and the mechanisms for their fast and efficient service development and deployment. We provide a comparison of the methods to implement services in SIP and H.323 focusing on the service architectures and their capabilities regarding the implementation of new features. While H.323 is still the more mature standard-albeit SIP tends to keep up-the two protocols have basic differences in the supplementary services architectures. H.323/H.450 has been defined as a sophisticated enterprise solution and is well suited to support complex multimedia calls involving widely interoperable supplementary services. SIP on the other side represents a more universal approach. SIP uses more generic syntax and semantics regarding feature definition and session description, which carries the danger to cause interworking problems. The advantage of SIP is its general applicability for signaling non-VoIP sessions for example the establishment of a PSTN session as standardized in the PINT approach.
Substituted Azabicyclo[2.2.1]heptanes as Selective Orexin-1 Antagonists: Discovery of JNJ-54717793 (2020)

The orexin system consists of two neuropeptides (orexin-A and orexin-B) that exert their mode of action on two receptors (orexin-1 and orexin-2). While the role of the orexin-2 receptor is established as an important modulator of sleep wake states, the role of the orexin-1 receptor is believed to play a role in addiction, panic, or anxiety. In this manuscript, we describe the optimization of a nonselective substituted azabicyclo[2.2.1]heptane dual orexin receptor antagonist (DORA) into orally bioavailable, brain penetrating, selective orexin-1 receptor (OX1R) antagonists. This resulted in the discovery of our first candidate for clinical development, JNJ-54717793.
Oropharyngeal Candidiasis: A review of Current Intervention Strategies (2004)

Summary This article sets out to review recent research studies pertaining to the drug treatment of oropharyngeal candidiasis in infants. The main aims of treatment programmes are to resolve signs and symptoms of the infection; and minimise drug induced resistance, with minimal adverse side effects. A search for clinical evidence using Medline, Nursing Index and Embase between 1995 and 2003, produces no systemic reviews, no placebo controlled trials only three random control trials for the treatment of oropharyngeal candidiasis in infants. Three independent randomised control trials with samples of infants with oropharyngeal candidiasis (who were not immuno-compromised), compare the three main drug treatments of choice for infants, i.e. miconazole gel, clotrimazole (nystatin) suspension, and fluconazole suspension. The randomised trial of these infants found that miconazole gel had a significantly higher cure rate compared with nystatin suspension. At day 12 of the trial there was a 99% cure rate with the use of miconazole gel (25 mg QDS) compared to only a cure rate of 54% with nystatin suspension (100 000 IU QDS) (P&gt; &lt; 0.0001). The evidence from these studies suggest that miconazole gel (25 mg QDS) is the drug of choice for health visitors treating infants with oropharangeal candidiasis, as it is a safe and effective and cost effective treatment regime from birth.
Live‐Cell SERS Endoscopy Using Plasmonic Nanowire Waveguides (2014)

Live-cell surface-enhanced Raman spectroscopy (SERS) endoscopy is developed by using plasmonic nanowire waveguides as endoscopic probes. It is demonstrated that the probe insertion does not stress the cell. Opposed to conventional SERS endoscopy, with excitation at the hotspot within the cell, the remote excitation method yields low-background SERS spectra from specific cell compartments with minimal associated photodamage. As a service to our authors and readers, this journal provides supporting information supplied by the authors. Such materials are peer reviewed and may be re-organized for online delivery, but are not copy-edited or typeset. Technical support issues arising from supporting information (other than missing files) should be addressed to the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.
Alterations in Canine Left Ventricular-arterial Coupling and Mechanical Efficiency Produced by Propofol (1997)

Although propofol depresses mechanical matching of the LV to the arterial system and reduces LV efficiency, these alterations plateau at higher dosages of propofol because reductions in afterload begin to offset further declines in myocardial contractile function.
First measurement of Ξc0 production in pp collisions at s=7 TeV (2018)

The production of the charm-strange baryon 0 c is measured for the first time at the LHC via its semileptonic decay into e + - e in pp collisions at s = 7 TeV with the ALICE detector. The transverse momentum (p T ) differential cross section multiplied by the branching ratio is presented in the interval 1 < p T < 8 GeV/c at mid-rapidity, |y| < 0.5. The transverse momentum dependence of the 0 c baryon production relative to the D 0 meson production is compared to predictions of event generators with various tunes of the hadronisation mechanism, which are found to underestimate the measured crosssection ratio.
ChemInform Abstract: Cyclic Sulfamate from N‐Substituted 2‐Amino‐3‐phenyl‐2‐propanol and Its Nucleophilic Reactions. (1991)

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Motion and position sensors for the automotive industry (2006)

We are proposing a novel technique to implement low cost motion and position sensing via micro-photonic devices based on digital diffractive optics. Standard optical encoders based on conventional shadowing effect as well as more complex grating based optical encoders are now becoming commodities in the automation industry. However, they lack many of the requirements for demanding applications as in the automotive industry. The severe automotive requirements are not only linked to high performance (resolution), but also to harsh environmental issues like fast temperature drifts, vibrations, shocks, accelerations, dust, humidity, to drastic cost issues, to small size/footprint, and finally to reliability (very long MTBF or constant monitoring of the wear-out for fault tolerance). Our diffractive optics based motion and position sensors are best suited for such special environments, while providing same or higher accuracy and resolution than standard encoders without the need for slow and/or unreliable electronic interpolation methods as it is done in the vast majority of encoders on the market today. We are proposing a novel method to design, implement and replicate in mass such motion and position sensors, which make them ideal solutions for large volume - low cost - high performance - high reliability applications. As an application example, we are applying our technology to the "Steer By Wire" (SBW) technology. Our SBW implementation requires 3 different sensors, two angular encoders (hybrid and absolute) and one torque sensor.
Size control and vacuum-ultraviolet fluorescence of nanosized KMgF3 single crystals prepared using femtosecond laser pulses (2016)

We fabricated nanosized KMgF<sub>3</sub> single crystals via a dry pulsed laser ablation process using femtosecond laser pulses. The sizes, shapes, and crystallographic properties of the crystals were evaluated by transmission electron microscopy (TEM). Almost all of the particles were spherical with diameters of less than 100 nm, and they were not highly agglomerated. Selected-area electron diffraction and high-resolution TEM analyses showed that the particles were single crystals. Particle diameter was controlled within a wide range by adjusting the Ar ambient gas pressure. Under low gas pressures (1 and 10 Pa), relatively small particles (primarily 10 nm or less) were observed with a high number density. With increasing pressure, the mean diameter increased and the number density drastically decreased. Vacuum-ultraviolet cathodoluminescence was observed at 140-230 nm with blue shift and broadening of spectrum.
Covid-19-Associated Coagulopathy: Biomarkers of Thrombin Generation and Fibrinolysis Leading the Outcome (2020)

<i>Background:</i> Coronavirus Disease 2019 (COVID-19)-associated coagulopathy is characterized by a prothrombotic state not yet comprehensively studied. We investigated the coagulation pattern of patients with COVID-19 acute respiratory distress syndrome (ARDS), comparing patients who survived to those who did not. <i>Methods:</i> In this prospective cohort study on 20 COVID-19 ARDS patients, the following biomarkers were measured: thrombin generation (prothrombin fragment 1 + 2 (PF 1 + 2)), fibrinolysis activation (tissue plasminogen activator (tPA)) and inhibition (plasminogen activator inhibitor 2 (PAI-2)), fibrin synthesis (fibrinopeptide A) and fibrinolysis magnitude (plasmin-antiplasmin complex (PAP) and D-dimers). Measurements were done upon intensive care unit (ICU) admission and after 10-14 days. <i>Results:</i> There was increased thrombin generation; modest or null release of t-PA; and increased levels of PAI-2, fibrinopeptide A, PAP and D-dimers. At baseline, nonsurvivors had a significantly (<i>p</i> = 0.014) higher PAI-2/PAP ratio than survivors (109, interquartile range (IQR) 18.1-216, vs. 8.7, IQR 2.9-12.6). At follow-up, thrombin generation was significantly (<i>p</i> = 0.025) reduced in survivors (PF 1 + 2 from 396 pg/mL, IQR 185-585 to 237 pg/mL, IQR 120-393), whereas it increased in nonsurvivors. Fibrinolysis inhibition at follow-up remained stable in survivors and increased in nonsurvivors, leading to a significant (<i>p</i> = 0.026) difference in PAI-2 levels (161 pg/mL, IQR 50-334, vs. 1088 pg/mL, IQR 177-1565). <i>Conclusion:</i> Severe patterns of COVID-19 ARDS are characterized by a thrombin burst and the consequent coagulation activation. Mechanisms of fibrinolysis regulation appear unbalanced toward fibrinolysis inhibition. This pattern ameliorates in survivors, whereas it worsens in nonsurvivors.
Co‐ordinated voltage control of DFIG wind turbines in uninterrupted operation during grid faults (2006)

Abstract Emphasis in this article is on the design of a co‐ordinated voltage control strategy for doubly fed induction generator (DFIG) wind turbines that enhances their capability to provide grid support during grid faults. In contrast to its very good performance in normal operation, the DFIG wind turbine concept is quite sensitive to grid faults and requires special power converter protection. The fault ride‐through and grid support capabilities of the DFIG address therefore primarily the design of DFIG wind turbine control with special focus on power converter protection and voltage control issues. A voltage control strategy is designed and implemented in this article, based on the idea that both converters of the DFIG (i.e. rotor‐side converter and grid‐side converter) participate in the grid voltage control in a co‐ordinated manner. By default the grid voltage is controlled by the rotor‐side converter as long as it is not blocked by the protection system, otherwise the grid‐side converter takes over the voltage control. Moreover, the article presents a DFIG wind farm model equipped with a grid fault protection system and the described co‐ordinated voltage control. The whole DFIG wind farm model is implemented in the power system simulation toolbox PowerFactory DIgSILENT. The DFIG wind farm ride‐through capability and contribution to voltage control in the power system are assessed and discussed by means of simulations with the use of a transmission power system generic model developed and delivered by the Danish Transmission System Operator Energinet.dk. The simulation results show how a DFIG wind farm equipped with voltage control can help a nearby active stall wind farm to ride through a grid fault, without implementation of any additional ride‐through control strategy in the active stall wind farm. Copyright © 2006 John Wiley &amp;Sons, Ltd.
Impairment of Instantaneous Autonomic Regulation Relates to Blood Pressure Fall Immediately after Standing in the Elderly and Hypertensives (2006)

The relation between changes in blood pressure and changes in autonomic activity over a very short period of time has not been reported thus far. To examine this relation, we here introduced a new method of power spectrum analysis with wavelet transformation, which has very fine time resolution and is able to assess changes in autonomic activity quantitatively even during movement. Our subjects were 15 hypertensive and 17 normotensive subjects. A head-up tilt test was performed in all subjects, and during the test, electrocardiogram and blood pressure were recorded continuously. The power spectrums for both parameters were calculated simultaneously every 5 s using wavelet transformation. The high frequency of the RR interval of the electrocardiogram (RR-HF) and low frequency of systolic blood pressure (SBP-LF) were defined and calculated as markers of parasympathetic and alpha-1 receptor blocker, bunazosin-sensitive sympathetic activity, respectively. Focusing on the changes for 2 min immediately after head-up tilting, it was found that the changes in SBP-LF and RR-HF were significantly delayed, by at least 40 s, in hypertensives compared with normotensives and also in elderly compared with non-elderly subjects. Multiple regression analysis demonstrated that the instantaneous change in RR-HF was the most important confounding factor for a fall in blood pressure immediately after head-up tilting. In conclusion, real-time changes in autonomic activity calculated by wavelet transformation may provide sensitive and useful information about acute changes in cardiovascular regulation, such as delayed reaction of the autonomic regulation after head-up tilting, that may be major causes of the blood pressure fall in hypertensive and elderly subjects.
A polymorphic dinucleotide repeat probe on chromosome 3p: LIB 44-36ca (D3S769) (1993)

Journal Article A polymorphic dinucleotide repeat probe on chromosome 3p: LIB 44-36ca (D3S769) Get access Laura Schmidt, Laura Schmidt * * To whom correspondence should be addressed Search for other works by this author on: Oxford Academic PubMed Google Scholar Hua Li, Hua Li Search for other works by this author on: Oxford Academic PubMed Google Scholar Ming-Hui Wei, Ming-Hui Wei Search for other works by this author on: Oxford Academic PubMed Google Scholar Michael I. Lerman, Michael I. Lerman 1Laboratory of Immunobiology, National Cancer Institute, Frederick Cancer Research and Development CenterFrederick, MD 21702, USA Search for other works by this author on: Oxford Academic PubMed Google Scholar Berton Zbar, Berton Zbar 1Laboratory of Immunobiology, National Cancer Institute, Frederick Cancer Research and Development CenterFrederick, MD 21702, USA Search for other works by this author on: Oxford Academic PubMed Google Scholar Kalman Tory Kalman Tory Search for other works by this author on: Oxford Academic PubMed Google Scholar Human Molecular Genetics, Volume 2, Issue 1, January 1993, Page 89, https://doi.org/10.1093/hmg/2.1.89-a Published: 01 January 1993
Electro-photographic model based stochastic clustered-dot halftoning with direct binary search (2011)

Most electrophotographic printers use periodic, clustered-dot screening for rendering smooth and stable prints. However, when used for color printing, this approach suffers from the problem of periodic moire resulting from interference between the periodic halftones of individual color planes. There has been proposed an approach, called CLU-DBS for stochastic, clustered-dot halftoning and screen design based on direct binary search. We propose a methodology to embed a printer model within this halftoning algorithm to account for dot-gain and dot-loss effects. Without accounting for these effects, the printed image will not have the appearance predicted by the halftoning algorithm. We incorporate a measurement-based stochastic model for dot interactions of an electro-photographic printer within the iterative CLU-DBS binary halftoning algorithm. The stochastic model developed is based on microscopic absorptance and variance measurements. The experimental results show that electrophotography-model based stochastic clustered dot halftoning improves the homogeneity and reduces the graininess of printed halftone images.
Automatic Asymptotic and Big-O Calculations via Computer Algebra (1979)

A computer program able to approximate symbolic expressions asymptotically is described. More precisely, the program determines, as requested, simpler expressions which are either asymptotically equal, of the same exact order, of at least the same order, of greater order, of lesser order, or of at most the same order as the given expression. Additional features allow the combination of exact and approximate subexpressions in the proper manner. The program is intended as a tool for complexity analysis, numerical analysis, and wherever approximations are used.
Session details: Document structure & adversarial information retrieval (2010)

No abstract available.