gebhart/patrepeval huggingface dataset:
1A1-C04 Development of Low-Pressure Driven Pneumatic Actuator and Its Application to Multi-Finger Robot Hand (2006)

This paper presents a nonmetallic and light robot hand using balloon type pneumatic actuators developed by us. The drive system of our proposed robot hand uses balloon type pneumatic actuators originally developed in consideration of safety for human contact. The characteristics of the pneumatic actuator proved that it is possible to drive a robot hand and get enough generated force to grasp objects by lower inner pressure and air volume. Therefore, a model the same size as a human hand can be made without a big air compressor.
Controlling the Short-Range Order and Packing Densities of Many-Particle Systems (2002)

ADVERTISEMENT RETURN TO ISSUEPREVAddition/CorrectionORIGINAL ARTICLEThis notice is a correctionControlling the Short-Range Order and Packing Densities of Many-Particle SystemsS. Torquato and F. H. StillingerCite this: J. Phys. Chem. B 2002, 106, 43, 11406Publication Date (Web):October 3, 2002Publication History Published online3 October 2002Published inissue 1 October 2002https://doi.org/10.1021/jp022019pCopyright © 2002 American Chemical SocietyRIGHTS & PERMISSIONSArticle Views227Altmetric-Citations18LEARN 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 InReddit PDF (9 KB) Get e-Alerts Get e-Alerts
ChemInform Abstract: 1‐(Organosulfonyloxy)‐3(1H)‐1,2‐benziodoxoles: Preparation and Reactions with Alkynyltrimethylsilanes. (1997)

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.
Control of Junction Temperature and Its Rate of Change at Thermal Boundaries via Precise Loss Manipulation (2017)

To optimize the lifetime of switching power semiconductors, this paper presents a methodology to control power device junction temperature T <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">j</sub> and its change during power cycles ΔT <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">j</sub> at thermal boundaries. This paper proposes a supervisory state machine to interrupt nominal system-level control only when temperature bounds are exceeded, and coordinates smooth transitions as T <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">j</sub> (k) and ΔT <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">j</sub> (k) approach their respective boundaries. To ensure that thermal states are regulated via precise and independent modulation of conduction and switching loss elements, decoupling methods are proposed. Also proposed is a ΔT <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">j</sub> control law that closes a control loop on the rate of change state Ṫ <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">j</sub> , and introduces active thermal capacitance and conductance into the closed-loop thermal system dynamics. Experimental evaluation of the proposed system illustrates well damped T <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">j</sub> (k) and ΔT <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">j</sub> (k) responses, and gradual adjustment of the manipulated inputs switching frequency and duty ratio. Finally, comparison with a current limit-based T <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">j</sub> regulation method illustrates how the proposed system allows power converters to push harder against their thermal limits.
A Circular Polarized Metallic Patch Antenna for RFID Reader (2005)

A novel single feed circularly polarized metallic patch antenna for RFID reader is proposed. The proposed antenna has a simple structure, it has corner truncated square patch, ground plane and a probe feed. In addition to structure of the proposed antenna is simple and low cost. Experimental results of a constructed prototype with the center operating frequency at 911 MHz showed that the antenna has an impedance bandwidth (2: 1 VSWR) of about 23 MHz, a 3 dB axial ratio of about 9 MHz, and a gain level of about 9 dBi.
First Series Using Ultrasonic Propulsion and Burst Wave Lithotripsy to Treat Ureteral Stones (2022)

PURPOSE: Our goal was to test transcutaneous focused ultrasound in the form of ultrasonic propulsion and burst wave lithotripsy to reposition ureteral stones and facilitate passage in awake subjects. MATERIALS AND METHODS: Adult subjects with a diagnosed proximal or distal ureteral stone were prospectively recruited. Ultrasonic propulsion alone or with burst wave lithotripsy was administered by a handheld transducer to awake, unanesthetized subjects. Efficacy outcomes included stone motion, stone passage, and pain relief. Safety outcome was the reporting of associated anticipated or adverse events. RESULTS: Twenty-nine subjects received either ultrasonic propulsion alone (n = 16) or with burst wave lithotripsy bursts (n = 13), and stone motion was observed in 19 (66%). The stone passed in 18 (86%) of the 21 distal ureteral stone cases with at least 2 weeks follow-up in an average of 3.9±4.9 days post-procedure. Fragmentation was observed in 7 of the burst wave lithotripsy cases. All subjects tolerated the procedure with average pain scores (0–10) dropping from 2.1±2.3 to 1.6±2.0 (P = .03). Anticipated events were limited to hematuria on initial urination post-procedure and mild pain. In total, 7 subjects had associated discomfort with only 2.2% (18 of 820) propulsion bursts. CONCLUSIONS: This study supports the efficacy and safety of using ultrasonic propulsion and burst wave lithotripsy in awake subjects to reposition and break ureteral stones to relieve pain and facilitate passage.
Charged-particle nuclear modification factors in XeXe collisions at $$ \sqrt{s_{\mathrm{NN}}} = 5.44 $$ TeV (2018)

A bstract The differential yields of charged particles having pseudorapidity within | η | &lt; 1 are measured using xenon-xenon (XeXe) collisions at $$ \sqrt{s_{\mathrm{NN}}} = 5.44 $$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msqrt> <mml:msub> <mml:mi>s</mml:mi> <mml:mrow> <mml:mi>N</mml:mi> <mml:mi>N</mml:mi> </mml:mrow> </mml:msub> </mml:msqrt> <mml:mo>=</mml:mo> <mml:mspace/> <mml:mn>5.44</mml:mn> </mml:math> TeV. The data, corresponding to an integrated luminosity of 3.42 μ b −1 , were collected in 2017 by the CMS experiment at the LHC. The yields are reported as functions of collision centrality and transverse momentum, p T , from 0.5 to 100 GeV. A previously reported p T spectrum from proton-proton collisions at $$ \sqrt{s}=5.02 $$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msqrt> <mml:mi>s</mml:mi> </mml:msqrt> <mml:mo>=</mml:mo> <mml:mn>5.02</mml:mn> </mml:math> TeV is used for comparison after correcting for the difference in center-of-mass energy. The nuclear modification factors using this reference, R AA * , are constructed and compared to previous measurements and theoretical predictions. In head-on collisions, the R AA * has a value of 0.17 in the p T range of 6–8 GeV, but increases to approximately 0.7 at 100 GeV. Above ≈6 GeV, the XeXe data show a notably smaller suppression than previous results for lead-lead (PbPb) collisions at $$ \sqrt{s_{\mathrm{NN}}}=5.02 $$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msqrt> <mml:msub> <mml:mi>s</mml:mi> <mml:mrow> <mml:mi>N</mml:mi> <mml:mi>N</mml:mi> </mml:mrow> </mml:msub> </mml:msqrt> <mml:mo>=</mml:mo> <mml:mn>5.02</mml:mn> </mml:math> TeV when compared at the same centrality (i.e., the same fraction of total cross section). However, the XeXe suppression is slightly greater than that for PbPb in events having a similar number of participating nucleons.
Regulation of atriopeptin release from the isolated rat heart (1986)

Recent studies have demonstrated that the mammalian atria possess an endocrine function which appears to play a role in the regulation of systemic arterial pressure, fluid balance, and electrolyte homeostasis. They have begun to study the regulation of atriopeptin (atrial natriuretic factor) release into the coronary effluent of the isolated perfused rat heart. Characterization by high pressure liquid chromatography of the form of the hormone released indicates that the predominant form is the active low MW circulating hormone not the pro-hormone. The release of immunoreactive atriopeptin (iAP) was stimulated by infusion of norepinephrine (1 ..mu..M) or epinephrine (1 ..mu..M) 3.0 and 2.6-fold, respectively. The ..beta..-adrenergic agonist isoproterenol and the ..cap alpha..-2 adrenergic agonist BHT-920 lacked effects on iAP release. On the other hand, the ..cap alpha..-1 adrenergic agonist phenylephrine caused a dose-dependent increase in release of iAP. Release of iAP stimulated by phenylephrine was inhibited by the ..cap alpha.. antagonist phentolamine. Further, iAP release was stimulated 4.2-fold by phorbol ester (1 ..mu..M) but was not affected by 4-..beta.. phorbol (1 ..mu..M). From these collective data they conclude that the release of atriopeptin is stimulated by ..cap alpha..-1 receptor activation and that protein kinase C participates in the regulation of secretion.more » The data suggests that the sympathetic nervous system may play a physiologic role in the regulation of atriopeptin secretion.« less
ChemInform Abstract: A New Mild Method for the Cleavage of the Amide Bond: Conversion of Secondary and Tertiary Amides to Esters. (1998)

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.
Cellular Layer-by-Layer Coculture Platform Using Biodegradable, Nanoarchitectured Membranes for Stem Cell Therapy (2017)

Stem cells are regulated in vivo through interactions with the surrounding microenvironments in a three-dimensional (3D) manner. A coculture of stem cells with desired cell types, which recapitulates the complex in vivo cell–cell communications, has been reported as an effective method to direct stem cell differentiation into specific lineage. However, conventional bilayer coculture systems employ membranes of microscale thickness and low porosity, which limit interaction between cocultured cells for efficient stem cell differentiation. Furthermore, conventional coculture systems require cell-impairing enzyme treatment to harvest the cells from the membranes. Here, we developed a cellular layer-by-layer (cLbL) coculture platform using biodegradable, nanothin, highly porous (BNTHP) membranes. Equipped with more porous and thinner membranes, the cLbL coculture platform better mimicked the in vivo 3D microenvironment and promoted cellular cross-talks between cocultured cells which occurred in nanoscale, resulting in more efficient stem cell differentiation compared to the conventional bilayer coculture systems. Furthermore, biodegradibility, biocompatibility, and highly flexibility of BNTHP membranes enabled conversion of the cell-attached membranes into implantable 3D cell constructs, thus avoiding harmful enzymatic harvesting of the cells. The cLbL platform may be an effective method to induce stem cell differentiation and facilitate cell implantation for stem cell therapy.
Studies on the Activity and Selectivity of the Copper-Chromium-Manganese Oxide Catalysts. XII. (1962)

As authors mentioned in the previous reports, the pilled copper-chromium-manganese oxide Catalyst had the superior activity and selectivity against those of the nickel catalyst for hydrogenation of nitrobenzene to aniline, crotonaldehyde to butylaldehyde and butanol in the vapor phase, and the selective hydrogenation of acetylene contained in a small amount in the mixture gas of ethylene and hydrogen and of carbon monoxide and hydrogen.An investigation was made to confirm the reproducibility of the hydrogenation of the unsaturated organic compound mentioned above by using the same catalyst on a pilot plant scale, and also to determine the very small amount of by-products coming from hydrogenation of the raw materials which could not decode in the laboratory scale.As a result, it was found that the catalyst has good reproducibility for the hydrogenation of unsaturated organic compounds, especially in the produced ethylene-hydrogen gas mixture the amount of acetylene was 1 ppm or less.
Exercise training reverses cardiac aging phenotypes associated with heart failure with preserved ejection fraction in male mice (2020)

Heart failure with preserved ejection fraction (HFpEF) is the most common type of HF in older adults. Although no pharmacological therapy has yet improved survival in HFpEF, exercise training (ExT) has emerged as the most effective intervention to improving functional outcomes in this age-related disease. The molecular mechanisms by which ExT induces its beneficial effects in HFpEF, however, remain largely unknown. Given the strong association between aging and HFpEF, we hypothesized that ExT might reverse cardiac aging phenotypes that contribute to HFpEF pathophysiology and additionally provide a platform for novel mechanistic and therapeutic discovery. Here, we show that aged (24-30 months) C57BL/6 male mice recapitulate many of the hallmark features of HFpEF, including preserved left ventricular ejection fraction, subclinical systolic dysfunction, diastolic dysfunction, impaired cardiac reserves, exercise intolerance, and pathologic cardiac hypertrophy. Similar to older humans, ExT in old mice improved exercise capacity, diastolic function, and contractile reserves, while reducing pulmonary congestion. Interestingly, RNAseq of explanted hearts showed that ExT did not significantly modulate biological pathways targeted by conventional HF medications. However, it reversed multiple age-related pathways, including the global downregulation of cell cycle pathways seen in aged hearts, which was associated with increased capillary density, but no effects on cardiac mass or fibrosis. Taken together, these data demonstrate that the aged C57BL/6 male mouse is a valuable model for studying the role of aging biology in HFpEF pathophysiology, and provide a molecular framework for how ExT potentially reverses cardiac aging phenotypes in HFpEF.
Cell cycle regulated genes in the three domains of life (2010)

Comment on: Bernander R, et al. Cell Cycle 2010; 9:795-806.
Syntheses of O‐Methylasparvenone‐Derived Serotonin‐Receptor Antagonists (1998)

Abstract Based on O ‐methylasparvenone ( 1 ), a N‐free 5HT 2 C antagonist with moderate affinity (p K i = 6.7), derivatives bearing dimethylamino ( 7 ), (dimethylamino)methyl ( 17 , 18 , 21 , and 22 ), and aminomethyl substituents ( 26 ) in place of the benzylic OH group of 1 as well as pyrrolidine‐ ( 33 ) and piperidine‐fused derivatives ( 29 , 43 , and 45 ) were synthesized. In contrast to the lead structure 1 , these new ligands were active in vivo in the rat. The tricycles 33 and 45 display high affinities for the 5HT 2 C receptor (p K i = 8).
ChemInform Abstract: Novel Radical Chain Reactions Based on O‐Alkyl Tin Dithiocarbonates. (1993)

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.
Multiscale Stratigraphic Reservoir Characterization for Flow and Storage of CO2: Roadmap for Modelling and Quantitative Understanding (2023)

Summary This poster outlines a hierarchical, multiscale modelling approach that is adapted from proven hydrocarbon reservoir characterization workflows to determine which 3D sedimentological and stratigraphic heterogeneity types at which temporal and spatial scales and in which configurations are most important for successful long-term CO2 storage. The approach is particularly in saline aquifers that are data-poor but have the potential to store large CO2 volumes. It uses the Representative Element Volume (REV) concept and associated upscaling methodology to characterise sedimentological heterogeneity types, and it leverages novel modelling tools that facilitate rapid model construction and prototyping, geometrically accurate representation of key geological heterogeneities in models, and computationally efficient simulation of all CO2 trapping mechanisms over relevant spatial and temporal scales.
Towards Intelligent Load Balancing in Data Centers (2021)

Network load balancers are important components in data centers to provide scalable services. Workload distribution algorithms are based on heuristics, e.g., Equal-Cost Multi-Path (ECMP), Weighted-Cost Multi-Path (WCMP) or naive machine learning (ML) algorithms, e.g., ridge regression. Advanced ML-based approaches help achieve performance gain in different networking and system problems. However, it is challenging to apply ML algorithms on networking problems in real-life systems. It requires domain knowledge to collect features from low-latency, high-throughput, and scalable networking systems, which are dynamic and heterogenous. This paper proposes Aquarius to bridge the gap between ML and networking systems and demonstrates its usage in the context of network load balancers. This paper demonstrates its ability of conducting both offline data analysis and online model deployment in realistic systems. The results show that the ML model trained and deployed using Aquarius improves load balancing performance yet they also reveals more challenges to be resolved to apply ML for networking systems.
Non-resonant Element in Slotted Ground Plane for Multiband Antenna Operation (2014)

New ways of achieving small, multiband, multifunctional, and standard solutions for mobile handset antennas are demanded in the current wireless market. A non-resonant element of 5 mm × 5 mm × 5 mm, a matching network, and a 100 mm × 40 mm slotted ground plane are proposed to satisfy mobile market demands that require multiband operation and small antenna solutions. The main advantage of the proposed design is that with only one non-resonant element of considerably small size (0.015 , 900 MHz), the handset is capable of providing operation at mobile bands.
Supplementary Figure S1 from Small-Molecule Prodigiosin Restores p53 Tumor Suppressor Activity in Chemoresistant Colorectal Cancer Stem Cells via c-Jun-Mediated ΔNp73 Inhibition and p73 Activation (2023)

&lt;p&gt;Prodigiosin targets CRCSC self-renewal in vitro.&lt;/p&gt;
Continuous Copolymerization of Vinylidene Fluoride with Hexafluoropropylene in Supercritical Carbon Dioxide: High-Hexafluoropropylene-Content Amorphous Copolymers (2008)

Copolymerization of vinylidene fluoride (VF2) and hexafluoropropylene (HFP) was carried out in supercritical carbon dioxide using a continuous stirred tank reactor. Three different HFP/VF2 molar feed ratios were studied, 59:41, 66:34, and 73:27, giving rise to amorphous copolymers containing about 23, 26, and 30 mol % HFP, respectively. The experiments were carried out at 40 °C with pressures in the range of 207–400 bar using perfluorobutyryl peroxide as the free radical initiator. Depending on the copolymer composition, the molecular weight, and the reaction pressure, either a homogeneous (solution) or a heterogeneous (precipitation) polymerization was observed. The effects of feed monomer concentration and reaction pressure were explored at otherwise constant conditions. The rate of polymerization (Rp) and the number-average molecular weight (Mn) increased linearly with the total monomer concentration, independent of the mode of polymerization, i.e., homogeneous or heterogeneous. Both Rp and Mn increased by about 20–30% when the reaction pressure was increased from 207 to 400 bar. This increase could be accounted for by the effect of pressure on the reaction rate constants. The molecular weight distributions were perfectly unimodal except for the lowest HFP-content copolymers at the highest monomer concentrations. The data suggest that the carbon-dioxide-rich fluid phase is the main locus of polymerization, even when the polymer precipitates during the reaction.
Wind Tunnel Testing of a Sonic Boom Minimized Tail-Braced Wing Transport Configuration (2004)

A supersonic transport configuration was designed for reduced ground sonic boom loudness by Sonic Boom Minimization, as defined in NASA TP-1348. An inverted V-tail braces the wing and nacelle (US patents D417,184 and 6,729,577). A 1/100 scale model was tested in February 2000 at the NASA Langley 4’ x 4’ Unitary Tunnel at Mach numbers of 2.0 and 1.6, and in April 2001 at the NASA Glenn 10’ x 10’ at Mach 2.0. Pressures below the model were measured for comparison with design predictions and for input into modified-linear ground sonic boom propagation methodology. The measured boom levels achieved the predicted <0.5 psf shock strengths when propagated to the ground. Several challenges getting sonic boom measurements are described, and recommendations are made for improving supersonic test results in the future.
Solidification Structure and Secondary Particles in Vertical-Type High-Speed Twin-Roll Cast 3003 Aluminum Alloy Strip (2019)

The effect of cooling rate on microstructure of vertical-type high-speed twin-roll cast 3003 aluminum alloy strip was investigated. The solidification structure was characterized in terms of grain size and kinds, size, morphology and chemical composition of secondary particles. The 3003 aluminum alloy strip consisted of cell structure, dendritic structure, globular grains and eutectic structure along the strip thickness direction. From the relationship between the cooling rates and as-cast grain size, the cooling rate of high-speed twin-roll cast strip surface area was estimated as 3.1 × 103 K/s. Significant differences in the formation of secondary particles were found between direct chill (DC)-casting and the high-speed twin-roll casting as a result of the different cooling rates; Al6(Mn,Fe) and α-Al(Mn,Fe)Si phase were identified in the DC-cast sample, whereas only α-Al(Mn,Fe)Si was predominant in the high-speed twin-roll cast strip. The Al6(Mn,Fe) particles in DC-cast sample were script-like morphology with high aspect-ratio. In contrast, α-Al(Mn,Fe)Si particles in the high-speed twin-roll cast strip was spore-like morphology. Most α-Al(Mn,Fe)Si particles in the strip were considered to be formed as one of the eutectic components from the liquid droplets trapped in the inter-dendrite regions. In particular, Fe-rich α-Al(Mn,Fe)Si phase was formed at strip central area due to the increase in Fe segregation at the growth front.