gebhart/patrepeval huggingface dataset:
Synthesis of highly calorific gaseous fuel from syngas on cobalt-manganese-ruthenium composite catalysts (1989)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis of highly calorific gaseous fuel from syngas on cobalt-manganese-ruthenium composite catalystsTomoyuki Inui, Akira Sakamoto, Tatsuya Takeguchi, and Yoshiaki IshigakiCite this: Ind. Eng. Chem. Res. 1989, 28, 4, 427–431Publication Date (Print):April 1, 1989Publication History Published online1 May 2002Published inissue 1 April 1989https://pubs.acs.org/doi/10.1021/ie00088a009https://doi.org/10.1021/ie00088a009research-articleACS PublicationsRequest reuse permissionsArticle Views128Altmetric-Citations17LEARN 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
Withdrawal: Activation of the AMP-activated protein kinase by the anti-diabetic drug metformin in vivo : Role of mitochondrial reactive nitrogen species. (2019)

The Journal raised questions that the AMPK immunoblot in Fig. Fifteen years after publication, the original data for these figures were not available for evaluation. The authors were able to provide to the Journal data from repeat experiments for Fig. The authors also provided the journal evidence that the duplications of Figs. The authors offered to publish substitute figures based on the repeated experiments and corrected figures, alternatively, offered to repeat the experiments. However, the Journal declined both offers, a decision with which the authors respectfully disagree. Further, the authors state that the results of this article are confirmed by the results of complementary experiments presented in
Clinical Outcome of Anterior Cruciate Ligament Reconstruction with Quadrupled Hamstring Tendon Graft and Bioabsorbable Interference Screw Fixation (2003)

Quadrupled hamstring tendon autograft anterior cruciate ligament reconstruction with bioabsorbable interference screw fixation is comparable with other methods of anterior cruciate ligament reconstruction in terms of patient satisfaction, knee stability, and function.
<title>Influence of cryogen spray cooling parameters on the heat extraction rate from a sprayed surface</title> (2002)

Cryogen spray cooling is used to prevent epidermal thermal damage during port-wine stain laser therapy, despite the limited understanding of the fluid dynamics, thermodynamics, and heat transfer characteristics of cryogen sprays. In recent studies, it has been suggested that the heat flux through human skin could be increased by changing physical parameters such as nozzle-to-skin distance, nozzle diameter, and/or by depositing cryogen in sequential spurts. These changes affect spray parameters such as droplet diameter, velocity, and spray temperature. Therefore, in order to optimize new nozzle designs, it is necessary to explore the influence that these fundamental spray parameters have on heat extraction. In this paper, various valve/nozzle configurations were characterized. A Phase Doppler Particle Analyzer was used to determine the average diameter, velocity, and droplet concentration of various cryogen sprays. The mass flux delivered by each valve/nozzle configuration was also measured, along with the average spray temperature. A custom-made device consisting of an insulated metallic disk was used to measure the heat extracted by different sprays. The results showed that there are significant differences in the heat extracted by the different valve/nozzle configurations. These variations are proportionally influenced by mass fluxes. Strong correlations were also observed between average droplet velocities and heat extraction. These findings indicate that mass flux has a dominant effect on heat extraction from human skin during cryogen spray cooling. It is also apparent that kinetic and thermal energies are other parameters to be considered when optimizing heat extraction.
Platinum-catalyzed hydrosilylation - colloid formation as the essential step (1986)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPlatinum-catalyzed hydrosilylation - colloid formation as the essential stepLarry N. Lewis and Nathan. LewisCite this: J. Am. Chem. Soc. 1986, 108, 23, 7228–7231Publication Date (Print):November 1, 1986Publication History Published online1 May 2002Published inissue 1 November 1986https://pubs.acs.org/doi/10.1021/ja00283a016https://doi.org/10.1021/ja00283a016research-articleACS PublicationsRequest reuse permissionsArticle Views2642Altmetric-Citations308LEARN 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
Dynamic thermal management of high heat flux devices using embedded solid-liquid phase change materials and solid state coolers (2012)

Dynamic operation and control is an essential tool for thermal management of a number of next generation electronic devices that suffer from localized hotspots with large heat fluxes. Due to limited cooling resources, the time that high heat flux devices can operate before load mitigation approaches must be employed is limited. To mitigate the spatial and temporal non-uniformities in chip temperature that result from dynamic power maps, the authors have introduced a novel thermal management approach that integrates solid-liquid phase change materials (PCMs) with an embedded heat spreader network directly into the die near the hotspots. This combined PCM-heat spreader network, or Composite Thermal Capacitor (CTC), gives the device a large increase in the local thermal capacitance near the hotspots. A prototype CTC that monolithically integrates micro heaters, PCMs and a Si spreader matrix into a test chip has been fabricated and shown to increase allowable device operating times by over 650% and address heat fluxes of up to ~395 W/cm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> . Coupled to the CTCs are solid state coolers (SSCs) that deliver fast regeneration of the CTCs during throttling events. Experiments that couple thermoelectric coolers to the CTCs, show that system duty cycles of over 50% can be achieved.
A transient analysis for the convex combination of two adaptive filters with transfer of coefficients (2010)

This paper proposes an improved model for the transient of convex combinations of adaptive filters. A previous model, based on a first-order Taylor series approximation of the nonlinear functions that appear in convex combinations, tended to overestimate the variance of the auxiliary variable used to estimate the mixing parameter. In this paper, we apply a second-order Taylor approximation that improves these estimates, and obtains better agreement with simulations. In addition, we also extend the model to include a simple mechanism for the transfer of coefficients between the constituent filters, a procedure that greatly improves the convergence of the overall filter, and provide an expression to select the free parameter used in such a scheme.
<title>Experiences with fiber optic Bragg grating sensors in civil engineering</title> (2001)

Initially developed for applications in the aerospace industry, fiber-optic Bragg grating sensors (FBG) have attracted attention in the civil engineering community. The interest in FBG sensors has been motivated by the potential advantages they can offer over existing sensing technologies. They are, immune to electromagnetic interference, small in size and can be easier to install than traditional electrical resistance strain gauges. They can also be multiplexed, that is, a single fiber may have more than one change. Although field test of FBG sensors have been reported in literature, there is a dearth of information on their installation procedures, their precision in quantifying strains of concrete structures, and robustness requirements for embedment in concrete structures. In particular the harsh environment during the construction of concrete structures is a great challenge in the installation of these fragile sensors. The paper reports on our experiences with FBG sensors in concrete structures. FBG sensor have been sued to quantify strain, temperature and to capture vibration signals. Th result of these studies indicate that, if properly installed, FBG sensors can survive the sever conditions associated with the embedment process and yield accurate measurements of strains and vibration response, so it is possible to benefit from their potential advantages.
Interactions between radiation therapy and immunotherapy: the best of two worlds? (2006)

Contrary to earlier thought, there is now accumulating evidence that local radiation therapy and various form of immunotherapy may be complementary. This may occur as a result of radiation-induced changes to the tumour cells themselves, the tumour microenvironment, the tumour vasculature and modulation of antigen-presenting and effector cell function. This study discusses recent findings and potential applications of this apparent synergy.
Predictive value of the TRI-SCORE for in-hospital mortality after redo isolated tricuspid valve surgery (2023)

Redo ITVS was rarely performed and was associated with an overall high in-hospital mortality and morbidity, but hiding important individual disparities. The TRI-SCORE accurately predicted in-hospital mortality after redo ITVS and may guide clinical decision-making process (www.tri-score.com).
Autonomous Simultaneous Localization and Mapping driven by Monte Carlo uncertainty maps-based navigation (2012)

Abstract This paper addresses the problem of implementing a Simultaneous Localization and Mapping (SLAM) algorithm combined with a non-reactive controller (such as trajectory following or path following). A general study showing the advantages of using predictors to avoid mapping inconsistences in autonomous SLAM architectures is presented. In addition, this paper presents a priority-based uncertainty map construction method of the environment by a mobile robot when executing a SLAM algorithm. The SLAM algorithm is implemented with an extended Kalman filter (EKF) and extracts corners (convex and concave) and lines (associated with walls) from the surrounding environment. A navigation approach directs the robot motion to the regions of the environment with the higher uncertainty and the higher priority. The uncertainty of a region is specified by a probability characterization computed at the corresponding representative points. These points are obtained by a Monte Carlo experiment and their probability is estimated by the sum of Gaussians method, avoiding the time-consuming map-gridding procedure. The priority is determined by the frame in which the uncertainty region was detected (either local or global to the vehicle's pose). The mobile robot has a non-reactive trajectory following controller implemented on it to drive the vehicle to the uncertainty points. SLAM real-time experiments in real environment, navigation examples, uncertainty maps constructions along with algorithm strategies and architectures are also included in this work.
Elliptic curve cryptosystems (1987)

We discuss analogs based on elliptic curves over finite fields of public key cryptosystems which use the multiplicative group of a finite field. These elliptic curve cryptosystems may be more secure, because the analog of the discrete logarithm problem on elliptic curves is likely to be harder than the classical discrete logarithm problem, especially over <inline-formula content-type="math/mathml"> <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" alttext="GF left-parenthesis 2 Superscript n Baseline right-parenthesis"> <mml:semantics> <mml:mrow> <mml:mrow class="MJX-TeXAtom-ORD"> <mml:mtext>GF</mml:mtext> </mml:mrow> <mml:mo stretchy="false">(</mml:mo> <mml:mrow class="MJX-TeXAtom-ORD"> <mml:msup> <mml:mn>2</mml:mn> <mml:mi>n</mml:mi> </mml:msup> </mml:mrow> <mml:mo stretchy="false">)</mml:mo> </mml:mrow> <mml:annotation encoding="application/x-tex">{\text {GF}}({2^n})</mml:annotation> </mml:semantics> </mml:math> </inline-formula>. We discuss the question of primitive points on an elliptic curve modulo <italic>p</italic>, and give a theorem on nonsmoothness of the order of the cyclic subgroup generated by a global point.
ChemInform Abstract: SYNTHESIS OF N‐(3′,4′‐DIMETHOXY‐5′‐BROMOPHENETHYL)‐2‐(4′‐HYDROXYPHENYL)ACETAMIDE AND ALLIED PRODUCTS (1977)

Abstract Da beim Erhitzen des Bromphenäthylamins (III) mit der Säure (II) das gewünschte Amid (I) nur in geringen Ausbeuten entsteht, werden eine Anzahl von Acylierungen unter verschiedenen Bedingungen durchgeführt, um die optimalen Bedingungen zur Synthese von (I) (s. Schema (II)+(III)‐(I)) oder Analogen zu ermitteln.
On-Chip Josephson Junction Microwave Switch (2015)

The authors report on the design and measurement of a reflective single-pole single-throw microwave switch with no internal power dissipation, based on a superconducting circuit containing a single Josephson junction. The data demonstrate the switch operation with 2 GHz instantaneous bandwidth centered at 10 GHz, low insertion loss, and better than 20 dB on/off ratio. The switch's measured performance agrees well with simulations for input powers up to -100 dBm. An extension of the demonstrated circuit to implement a single-pole double-throw switch is shown in simulation.
Monitoring the Effects of Water Stress in Cotton Using the Green Red Vegetation Index and Red Edge Ratio (2019)

The main objective of this work was to study the feasibility of using the green red vegetation index (GRVI) and the red edge ratio (RE/R) obtained from UAS imagery for monitoring the effects of soil water deficit and for predicting fibre quality in a surface-irrigated cotton crop. The performance of these indices to track the effects of water stress on cotton was compared to that of the normalised difference vegetation index (NDVI) and crop water stress index (CWSI). The study was conducted during two consecutive seasons on a commercial farm where three irrigation frequencies and two nitrogen rates were being tested. High-resolution multispectral images of the site were acquired on four dates in 2017 and six dates in 2018, encompassing a range of matric potential values. Leaf stomatal conductance was also measured at the image acquisition times. At harvest, lint yield and fibre quality (micronaire) were determined for each treatment. Results showed that within each year, the N rates tested (&gt; 180 kg N ha−1) did not have a statistically significant effect on the spectral indices. Larger intervals between irrigations in the less frequently irrigated treatments led to an increase (p &lt; 0.05) in the CWSI and a reduction (p &lt; 0.05) in the GRVI, RE/R, and to a lesser extent in the NDVI. A statistically significant and good correlation was observed between the GRVI and RE/R with soil matric potential and stomatal conductance at specific dates. The GRVI and RE/R were in accordance with the soil and plant water status when plants experienced a mild level of water stress. In most of the cases, the GRVI and RE/R displayed long-term effects of the water stress on plants, thus hampering their use for determinations of the actual soil and plant water status. The NDVI was a better predictor of lint yield than the GRVI and RE/R. However, both GRVI and RE/R correlated well (p &lt; 0.01) with micronaire in both years of study and were better predictors of micronaire than the NDVI. This research presents the GRVI and RE/R as good predictors of fibre quality with potential to be used from satellite platforms. This would provide cotton producers the possibility of designing specific harvesting plans in the case that large fibre quality variability was expected to avoid discount prices. Further research is needed to evaluate the capability of these indices obtained from satellite platforms and to study whether these results obtained for cotton can be extrapolated to other crops.
Water-Channel Analog to High-Velocity Combustion (1953)

Abstract This paper is a sequel to one presented in 1951, by the author (1). It was shown that during the development of detonation, the combustion zone which appears first in a unidimensional flow field as a single discontinuity, is later transformed into an unsteady, double discontinuity system, and it was demonstrated that such a transformation is necessary because of the restrictions imposed on the system by the dynamic boundary conditions. In the water channel the combustion-front discontinuity is simulated by a unidimensional source formed by admitting water from the bottom. By a proper selection of state parameters analogous relationships are derived to those between pressure and specific volume in a gaseous combustion system. Thus the consequences of restrictions imposed by dynamic boundary conditions on the propagation of combustion are illustrated in an analogous system which, being simpler in nature, is easier to understand. Moreover, the water-channel analog is utilized as an illustrative model of a system where controlled, stationary detonation could be achieved.
An 8 &#x2013; 18 GHz wideband SiGe BiCMOS low noise amplifier (2009)

In this paper, an 8 – 18 GHz wideband low noise amplifier (LNA) with an active balun fabricated in a 0.13-µ m SiGe BiCMOS technology was presented. The LNA achieves 16-dB of gain with 1.5 dB variation over the 8GHz to 18 GHz frequency band and a matched input with less than −9 dB of reflection. The minimum noise figure (NF) is 5 dB at 8GHz and increases to 6 dB at 18GHz. The measured IIP3 is −15-dBm with 17 mA total current consumption from 2.2V supply.
Updates on Traditional Medicinal Plants for Hepatocellular Carcinoma (2016)

Aim: Hepatocellular carcinoma (HCC) is a major worldwide problem primarily caused by hepa titis B and C virus infection. End stage liver cancer treatment options are limited thus requiring expensive liver transplantation which is not available in many countries. Methods: Several herbal compounds and herbal composite formulas have been studied through in-vitro and in vivo as an anti-HCC agent, enhancing our knowledge about their biological functions and targets. In this article, arecent update on the herbal medicine has been provided with reference to liver cancer. Results: For the sake of clarity, the effective herbal compounds, clinical studies of herbal composite formula, cell culture, and animal model studies safety are discussed. The effects of many herbal active compounds of Annona atemoya, Andrographis paniculata, Boerha viadiffusa, Piper longum, Podophyllum hexandrum, Phyllanthus amarus, and Terminalia chebula, and herbal composite formula on autophagy, apoptosis, antioxidant, and inflammation characteristicshave been provided. Conclusion: This will enhance our un-derstanding on the prevention and treatment of HCC by herbal active compounds and herbal composite formulas.
Multi-Robot Enhanced Intelligent Multi-User Millimeter-Wave MIMO Systems under Uncertain Environment (2019)

This paper investigates how to maximize the practical communication quality of multi-user millimeter-wave (mmWave) MIMO systems with uncertain environment through effectively using the mobility from multi-robots as dynamic relays and adopting machine learning techniques. mmWave MIMO has been considered as a promising wireless communication technology due to the high frequency usage efficiency from beamforming. However, the uncertain environment could seriously affect the effectiveness and practicality of beamforming since wireless channels may have a more complicated structure, and the coordination among multiple nodes could be more difficult. For instance, the uncertain distribution of mobile users could significantly affect the performance of wireless channels, and then significantly degrade practical communication quality. Therefore, this paper presents a novel Multi-Robot Enhanced Intelligent Multi-User Millimeter-Wave MIMO (MREI-MU-MIMO) system that adopt both dynamic codebook based beam training protocol and online reinforcement learning to supervise the mobility of multi-robot-relay as well as handle the serious effects form the uncertain environment. Firstly, a novel dynamic codebook development is presented that cannot only lower the complexity of existing beamforming codebooks and also handle the complicated channel structure under uncertainty during multi-user beam training. Then, a decentralized Deep Q-Network (DQN) rein-forcement learning algorithm has been developed to intelligently manage multi-robot mobility and further effectively assign the optimal MIMO to handle the uncertainty from environment. The effectiveness of the proposed design has been demonstrated through real-time simulation and experiment.
ON THE QUESTION OF THE OCCURRENCE AND METABOLISM OF 5‐HYDROXYTRYPTAMINE AND RELATED INDOLE COMPOUNDS IN MAMMALIAN SEMEN (1961)

The content of 5-hydroxytryptamine was examined in the semen of man, bull, ram, boar and dog. Spectrophotofluorimetric and chromatographic analysis of extracts prepared by several methods has shown that the semen contains only minute quantities of 5-hydroxytryptamine, if any. One cannot attribute to 5-hydroxytryptamine the uterus-stimulating effect which the human seminal plasma is known to exert. Tryptophan, although present in the seminal plasma, is not converted to 5-hydroxytryptamine on incubation of semen. 5-Hydroxytryptophan is oxidatively deaminated, but not decarboxylated, by spermatozoa. 5-Hydroxytryptamine itself, like tryptamine and tyramine, is not deaminated by either whole semen or washed suspensions of ram spermatozoa.