gebhart/patrepeval huggingface dataset:
Satellite vs. Cellular Broadcasting : A Multi-Criteria Comparison (2006)

Traditional voice and video-oriented networks such as the cellular and satellite networks are being increasingly used to carry data traffic. We endeavor to compare the downlink broadcast performance of the two architectures against each other on the basis of energy consumption, end-to-end delay and maximum stable throughput. The architectures are modelled as systems of Geo/G/1 queues. Queuing theory arguments and then sample-path based comparisons are used to show that the satellite architecture while being more energy-efficient has a higher delay and a lower maximum throughput than the cellular architecture. Many wireless applications require an underlying packet broadcast capability. Given a fixed set of resources, the broadcast performance of a network depends critically on its architecture. Even among infrastructure-based networks such as the satellite and the cellular networks, the performance can be quite different depending on the criteria used for comparison. We study two network scenarios for data traffic - a Low-Earth Orbit (LEO) satellite transmitting to nodes in its footprint, and a terrestrial cellular network - and compare them on the basis of the energy consumption, delay and maximum throughput attainable. While studies such as (1), (2) and (3) compare the performance of different cellular systems such as CDMA and GSM or CDMA and TDMA networks, works like (4) and (5) compare the performance of different LEO satellite architectures. Reference (6) deals with allocating channels for voice traffic in a dynamic fashion to the mobile nodes for both satellite and cellular architectures. (7) compares the performance of the IRIDIUM satellite network versus the AMPS cellular architecture, but the comparison is based on the mechanisms used for call handoff, call registration and related aspects. There does not appear to be any previous work that compares these architectures for data traffic, especially on the basis of energy consumption. In this paper, we compare the downlink performance of guaranteed broadcast transmission in satellite and cellular architectures on the basis of energy consumption, end-to- end delay and the maximum stable throughput that can be sustained by the two architectures. The two architectures are modelled as discrete-time Geo/G/1 queues transmitting with a fixed transmit power and at a fixed rate. Using both queuing theory arguments and sample-path-based comparisons, we show that the satellite architecture is more energy efficient, while the cellular network has a lower end-to-end delay and a higher maximum stable throughput. II. SYSTEM MODEL
Searching with Measurement Dependent Noise (2016)

Consider a target moving at a constant velocity on a unit-circumference circle, starting at an arbitrary location. To acquire the target, any region of the circle can be probed to obtain a noisy measurement of the target's presence, where the noise level increases with the size of the probed region. We are interested in the expected time required to find the target to within some given resolution and error probability. For a known velocity, we characterize the optimal tradeoff between time and resolution, and show that in contrast to the well studied case of constant measurement noise, measurement dependent noise incurs a multiplicative gap in the targeting rate between adaptive and non-adaptive search strategies. Moreover, our adaptive strategy attains the optimal rate-reliability tradeoff. We further show that for optimal non-adaptive search, accounting for an unknown velocity incurs a factor of at least two in the targeting rate.
ChemInform Abstract: Lithium Perchlorate Accelerated Friedel—Crafts Addition of Furans to β‐Nitrostyrenes. (2014)

ChemInformVolume 45, Issue 15 Heterocyclic Compounds ChemInform Abstract: Lithium Perchlorate Accelerated Friedel—Crafts Addition of Furans to β-Nitrostyrenes. Martin J. Stoermer, Martin J. Stoermer Inst. Mol. Biosci., Univ. Queensland, St. Lucia, Queensl. 4072, AustraliaSearch for more papers by this authorHans-Matthias Richter, Hans-Matthias Richter Inst. Mol. Biosci., Univ. Queensland, St. Lucia, Queensl. 4072, AustraliaSearch for more papers by this authorDieter E. Kaufmann, Dieter E. Kaufmann Inst. Mol. Biosci., Univ. Queensland, St. Lucia, Queensl. 4072, AustraliaSearch for more papers by this author Martin J. Stoermer, Martin J. Stoermer Inst. Mol. Biosci., Univ. Queensland, St. Lucia, Queensl. 4072, AustraliaSearch for more papers by this authorHans-Matthias Richter, Hans-Matthias Richter Inst. Mol. Biosci., Univ. Queensland, St. Lucia, Queensl. 4072, AustraliaSearch for more papers by this authorDieter E. Kaufmann, Dieter E. Kaufmann Inst. Mol. Biosci., Univ. Queensland, St. Lucia, Queensl. 4072, AustraliaSearch for more papers by this author First published: 27 March 2014 https://doi.org/10.1002/chin.201415112Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat No abstract is available for this article. Volume45, Issue15April 15, 2014 RelatedInformation
Quantification of PEFC Catalyst Layer Saturation via In Silico, Ex Situ, and In Situ Small-Angle X-ray Scattering (2023)

The complex nature of liquid water saturation of polymer electrolyte fuel cell (PEFC) catalyst layers (CLs) greatly affects the device performance. To investigate this problem, we present a method to quantify the presence of liquid water in a PEFC CL using small-angle X-ray scattering (SAXS). This method leverages the differences in electron densities between the solid catalyst matrix and the liquid water filled pores of the CL under both dry and wet conditions. This approach is validated using ex situ wetting experiments, which aid the study of the transient saturation of a CL in a flow cell configuration in situ. The azimuthally integrated scattering data are fitted using 3D morphology models of the CL under dry conditions. Different wetting scenarios are realized in silico, and the corresponding SAXS data are numerically simulated by a direct 3D Fourier transformation. The simulated SAXS profiles of the different wetting scenarios are used to interpret the measured SAXS data which allows the derivation of the most probable wetting mechanism within a flow cell electrode.
A multicentre comparison of quantitative 90Y PET/CT for dosimetric purposes after radioembolization with resin microspheres (2015)

Current generation ToF scanners can consistently reconstruct (90)Y activity concentrations, but they underestimate activity concentrations in small structures (≤37 mm diameter) within a warm background due to partial volume effects and constraints of the reconstruction algorithm. At the highest count rates investigated, measures of background concentration (about 300 kBq/ml) could be estimated on average to within 1%, 5% and 2% for GE Healthcare (all-pass filter, RR + ToF), Philips (4i8s ToF) and Siemens (2i21s all-pass filter, RR + ToF) ToF systems, respectively. Over the range of activities investigated, comparable performance between GE Healthcare and Siemens ToF systems suggests suitability for quantitative analysis in a scenario analogous to that of postradioembolization imaging for treatment of liver cancer.
Multiwavelength mid-IR spatially-dispersive CW laser based on polycrystalline Cr2+:ZnSe (2004)

For the first time we demonstrate a multiwavelength, ultrabroadband, continuous-wave, tunable, polycrystalline Cr2+:ZnSe spatially-dispersive laser, operating in the near IR spectral region. We show a dual-wavelength operation of the laser, tunable over a 600 nm spectral range (2200-2800 nm), an ultrabroadband operation of the laser, producing a continuous 135 nm wide spectrum centered at 2500 nm, and show a 200 nm wide (2400-2600 nm) multiline, tunable output spectra, consisting of up to 40 spectral lines. We also show simultaneous tuning of a 20-lines ultrabroadband spectrum over a spectral range of 2200-2800 nm.
Stereoselective synthesis of perillaldehyde-based chiral β-amino acid derivatives through conjugate addition of lithium amides (2014)

The Michael addition of dibenzylamine to (+)-tert-butyl perillate (3) and to (+)-tert-butyl phellandrate (6), derived from (S)-(-)-perillaldehyde (1), resulted in diastereomeric β-amino esters 7A-D in a moderately stereospecific reaction in a ratio of 76:17:6:1. After separation of the diastereoisomers, the major product, cis isomer 7A, was quantitatively isomerized to the minor component, trans-amino ester 7D. All four isomers were transformed to the corresponding β-amino acids 10A-D, which are promising building blocks for the synthesis of β-peptides and 1,3-heterocycles in three steps. The steric effects of the isopropyl group at position 4 and of the α-methyl substituent of (R)-N-benzyl-N-α-methylbenzylamine on the reactivity were also studied and, upon application of a chiral amine, excellent stereoselectivity of the conjugate addition was observed. Amino ester 11 was obtained as a single product and transformed to the corresponding amino acids 10A and 10D in good yields on the gram scale.
(Energy Technology Division Supramaniam Srinivasan Young Investigator Award Address) Towards Deterministic Electrode Design: Elucidating the Role of Surface Chemistry and Microstructure on Flow Battery Performance (2019)

Redox flow batteries (RFBs) are promising for energy-intensive grid storage applications, but further improvements are needed for universal adoption. 1,2 While research efforts have primarily focused on molecular engineering of redox couples as a means of reducing system cost, advances in other critical systems components also hold significant cost reduction potential. Of particular importance are the porous electrodes which are responsible for multiple critical functions in the flow cell related to thermodynamics, kinetics, and transport including providing surfaces for electrochemical reactions, enabling uniform liquid electrolyte distribution with low hydraulic resistance, as well as conducting electrons and heat. However, there is limited knowledge on how to systematically design and implement these materials in emerging RFB applications, forcing the repurposing of available materials that are not tailored for this electrochemical system. Moreover, current generation materials, which are typically developed via empirical approaches, lack control of surface chemistry (e.g., compositional heterogeneity) and morphology (e.g., broad pore size distribution). This fundamentally limits the performance, durability and, consequently, the cost of resultant systems. In this talk, I will discuss methods for disaggregating and quantifying resistive losses in various porous electrodes using model redox couples, diagnostic flow cells, and electrochemical modeling. 3,4 When applied in combination with suitable spectroscopy and microscopy techniques, structure-performance relations can be elucidated 5,6 which may eventually lead to design rules that enable the fabrication of chemistry-specific electrodes based solely on the knowledge of the physical and electrochemical properties of the redox active electrolyte. References 1. I. Gyuk, M. Johnson, J. Vetrano, K. Lynn, W. Parks, R. Handa, L. Kannberg, S. Hearne, K. Waldrip, R. Braccio, Grid Energy Storage , US Department of Energy, 2013 2. R.M. Darling, K.G. Gallagher, J.A. Kowalski, S. Ha, F.R. Brushett, Energy &amp; Environmental Science , 2014, 7, 3459 3. J.D. Milshtein, J.L. Barton, R.M. Darling, F.R. Brushett, Journal of Power Sources , 2016, 327, 151 4. J.D. Milshtein, K.M. Tenny, J.L. Barton, J. Drake, R.M. Darling, F.R. Brushett, Journal of the Electrochemical Society , 2017, 164(11), E3265 5. K.V. Greco, A. Forner-Cuenca, A. Mularczyk, J. Eller, F.R. Brushett, ACS Applied Materials &amp; Interfaces , 2018, 10(51), 44430 6. A. Forner-Cuenca, E. Penn, A. Oliveira, F.R. Brushett, in preparation
Nano illumination microscopy: a technique based on scanning with an array of individually addressable nanoLEDs (2020)

In lensless microscopy, spatial resolution is usually provided by the pixel density of current digital cameras, which are reaching a hard-to-surpass pixel size / resolution limit over 1 µm. As an alternative, the dependence of the resolving power can be moved from the detector to the light sources, offering a new kind of lensless microscopy setups. The use of continuously scaled-down Light-Emitting Diode (LED) arrays to scan the sample allows resolutions on order of the LED size, giving rise to compact and low-cost microscopes without mechanical scanners or optical accessories. In this paper, we present the operation principle of this new approach to lensless microscopy, with simulations that demonstrate the possibility to use it for super-resolution, as well as a first prototype. This proof-of-concept setup integrates an 8 × 8 array of LEDs, each 5 × 5 <em>μm</em><sup>2</sup> pixel size and 10 <em>μm</em> pitch, and an optical detector. We characterize the system using Electron-Beam Lithography (EBL) pattern. Our prototype validates the imaging principle and opens the way to improve resolution by further miniaturizing the light sources. © 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
Optimal Planning and Learning in Uncertain Environments for the Management of Wind Farms (2014)

Wind energy is a key renewable source, yet wind farms have relatively high cost compared with many traditional energy sources. Among the life cycle costs of wind farms, operation and maintenance (O&M) accounts for 25–30%, and an efficient strategy for management of turbines can significantly reduce the O&M cost. Wind turbines are subject to fatigue-induced degradation and need periodic inspections and repairs, which are usually performed through semiannual scheduled maintenance. However, better maintenance can be achieved by flexible policies based on prior knowledge of the degradation process and on data collected in the field by sensors and visual inspections. Traditional methods to model the O&M process, such as Markov decision processes (MDPs) and partially observable MDPs (POMDPs), have limitations that do not allow the model to properly include the knowledge available and that may result in nonoptimal strategies for management of the farm. Specifically, the conditional probabilities for modeling the degradation process and the precision of the observations are usually affected by epistemic uncertainty. Although MDPs and POMDPs are formulated for fixed transition and emission probabilities, the Bayes-adaptive POMDP (BA-POMDP) framework treats those conditional probabilities as random variables and is therefore suitable for including epistemic uncertainty. In this paper, a novel learning and planning method is proposed, called planning and learning in uncertain dynamic systems (PLUS), within the BA-POMDP framework that can learn from the environment, update the distributions of model parameters, and select the optimal strategy considering the uncertainty related to the model. Validating with synthetic data, the total management cost of a wind farm using PLUS is shown to be significantly less than costs achieved by a fixed policy or through the POMDP framework. The preliminary results show the promise of the proposed methodology for optimal management of wind farms.
Dual Tumor Microenvironment Remodeling by Glucose‐Contained Radical Copolymer for MRI‐Guided Photoimmunotherapy (2021)

Aberrant glucose metabolism and immune evasion are recognized as two hallmarks of cancer, which contribute to poor treatment efficiency and tumor progression. Herein, a novel material system consisting of a glucose and TEMPO (2,2,6,6-tetramethylpiperidin-1-yl)oxyl) at the distal ends of PEO-b-PLLA block copolymer (glucose-PEO-b-PLLA-TEMPO), is designed to encapsulate clinical therapeutics CUDC101 and photosensitizer IR780. The specific core-shell rod structure formed by the designed copolymer renders TEMPO radicals excellent stability against reduction-induced magnetic resonance imaging (MRI) silence. Tumor-targeting moiety endowed by glucose provides the radical copolymer outstanding multimodal imaging capabilities, including MRI, photoacoustic imaging, and fluorescence imaging. Efficient delivery of CUDC101 and IR780 is achieved to synergize the antitumor immune activation through IR780-mediated photodynamic therapy (PDT) and CUDC101-triggered CD47 inhibition, showing M1 phenotype polarization of tumor-associated macrophages (TAMs). More intriguingly, this study demonstrates PDT-stimulated p53 can also re-educate TAMs, providing a combined strategy of using dual tumor microenvironment remodeling to achieve the synergistic effect in the transition from cold immunosuppressive to hot immunoresponsive tumor microenvironment.
Mural Crohn Disease: Correlation of Dynamic Contrast-enhanced MR Imaging Findings with Angiogenesis and Inflammation at Histologic Examination—Pilot Study (2009)

Certain MR imaging-derived mural hemodynamic parameters correlate with disease chronicity and angiogenesis in Crohn disease, but not with histologic and clinical markers of inflammation. Data support the working hypothesis that microvessel permeability increases with disease chronicity and that tissue MVD is actually inversely related to mural blood flow.
Uranyl dication mediated photoswitching of a calix[4]pyrrole-based metal coordination cage (2018)

A set of self-assembled tri- and tetrapodal metal coordination cage structures (cage-1 and cage-2, respectively) constructed from the uranyl dication (UO22+) and a dibenzoic acid functionalised cis-calix[4]pyrrole (1) are described. The inherent photochemical reactivity of the uranyl dication mediates the transformation of cage-1 to cage-2via the activation of molecular oxygen.
COGITO: Génération de code au runtime pour la sécurité des systèmes embarqué (2016)

International audience
A 60GHz direct-conversion CMOS receiver (2005)

A direct-conversion receiver incorporates folded microstrip lines to create resonance at 60GHz in a common-gate LNA and active mixers. Realized in 0.13 /spl mu/m CMOS technology, it provides a voltage gain of 28dB with 12.5dB NF while consuming 9mW from a 1.2V supply.
Improved EPLL performance using multiple sinusoidal signal integrators for grid-connected VSC system synchronisation (2016)

This paper presents a novel synchronisation technique, which is based on the structural modification of the conventional Enhanced Phase-Locked Loop (EPLL) by introducing Multiple Sinusoidal Signal Integrator (MSSI) modules. The proposed MSSI-EPLL proves to overcome the weakness of the EPLL by employing adaptive MSSI modules in both amplitude and frequency loops to effectively eliminate low order harmonics under distorted AC grid condition, without sacrificing the dynamic performance. The test bench setup also considers the application of a single-to-ground fault at the Point of Common Coupling (PCC) and a step change in AC system frequency. For these test scenarios, the EPLL suffers noticeable periodic ripples during the dynamic process due to phase and amplitude jumps, with slower response time and steady oscillations during frequency change. But, these drawbacks are significantly mitigated by the MSSI-EPLL, as proven mathematically and confirmed through simulation studies.
80 Gbit/s simultaneous photonic demultiplexingbased on OTDM-to-WDM conversion by four-wave mixing with supercontinuum light source (2001)

A novel method for all-optical all-channel simultaneous demultiplexing based on OTDM-to-WDM conversion by four-wave mixing with a highly chirped rectangular shaped supercontinuum source is proposed. Error-free 80 to 10 Gbit/s demultiplexing operation in eight channels is experimentally demonstrated.
The Effect of Spinning Exercise on Women Hormone and Immune-Related Factors in Middle Aged Women (2018)

The purpose of this study is to investigate the effect of spinning exercise on estrogen and immune-related factors in middle aged women. The participants of this study were divided into two groups: spinning exercise group (n=10) and control group (n=10) in middle aged women. Participation in the spinning exercise was performed three time a week and the target heart rate was 50~60%. In this study, SPSS ver. 21.0 s tatistical package was used to analyze the data. The paired t-test was conducted to verify the differences within each group before and after the spinning exercise, and the independent t-test was conducted to analyze the difference between the groups. The results of this study were as follows; First, there was no statistically significant difference between before and after the control group for estrogen, WBC, lymphocyte, and IgG changes in the group, and there was a statistically significant difference for each factor in the spinning exercise group (p＜.01)(p＜.05)(p＜.05)(p＜.05). Control group and the spinning exercise group showed statistically significant differences in the changes of estrogen, WBC, Lymphocyte and IgG (p＜.05)(p＜.05)(p＜.05)(p＜.05) in the post test. Second, there was no statistically significant difference in the changes of Eosinophil and Monocyte before and after the spinning exercise, and there was no statistically significant difference in the changes of Eosinophil and Monocyte between control group and spinning exercise group.
Supplementary Table S2 from Mutant NPM1 Hijacks Transcriptional Hubs to Maintain Pathogenic Gene Programs in Acute Myeloid Leukemia (2023)

&lt;p&gt;Supplementary Table S2 shows the differential expressed genes in dTAG-13 vs DMSO treatment at 24hr in OCI-AML3-NPM1c-degron2 cells.&lt;/p&gt;
Analysis of a Novel Nasoenteral Tube Design (2022)

Abstract Tube patency is essential for patients who receive enteral nutrition via a small-bore nasoenteral feeding tube. Formation of a clog within these tubes interrupts and delays delivery of nutrition. Unfortunately, current tubes are prone to clogging. A small-bore nasoenteral feeding tube design is proposed with a gradually increasing diameter over its length, which could mitigate clog issues. Small-bore feeding tubes that increase in diameter over their length were evaluated relative to constant diameter tubes to determine if a tapered tube design could reduce the pressure required to clear an established clog in benchtop testing at pressures representative of those achieved safely in the clinical environment. Incorporating a tapered design into an 8 Fr nasal feeding tube significantly reduced the pressure to expel an established clog by 62% (p &amp;lt; 0.05; 279.2 kPa versus 710.8 kPa, respectively). When compared to constant diameter tubes with the same proximal outside diameter, a tapered tube design permits clearance of an established clog at lower pressure.