gebhart/patrepeval huggingface dataset:
A Highly Sensitive Tactile Sensor Using a Pyramid‐Plug Structure for Detecting Pressure, Shear Force, and Torsion (2018)

Abstract Sensors that detect and discriminate external mechanical forces are a principal component in the development of electronic tactile systems that can mimic the multifunctional properties of human skin. This study demonstrates a pyramid‐plug structure for highly sensitive tactile sensors that enables them to detect pressure, shear force, and torsion. The device is composed of pyramid‐patterned ionic gel inspired by neural mechanoreceptors and engraved electrodes. Based on a pyramid‐plug structure, the deformation mechanism differs between different types of external mechanical loadings. The sensor provides the high sensitivities of 1.93 kPa −1 , 29.88 N −1 , and 3.39 (N cm) −1 , and a wide range of detection for tactile daily activity. Moreover, this tactile sensor could work through either of the two transduction methods (capacitive transduction and piezoresistive transduction). It is shown that this tactile sensor can be used to monitor changes in electrical signals ranging from those caused by human breathing to those caused by arbitrary multiplex human touching.
Investigation on the Response of the Human Eye to the Light Flicker Produced by Different Lamps (2006)

The response of the human eye to flicker depends on the type of lamp used. The standard flickermeter is based on the measurement of voltage and assumes the light source to be a 60 W incandescent lamp. When a different lamp is the source of light flicker, the standard flickermeter gives erroneous results. This paper presents a dynamic model of the eye-brain response to flicker. The model is based on the analysis of the light emitted by the lamp. A suitable measurement system has been developed and three different kinds of lamps have been considered. Experimental results show how the emitted light spectra and the human eye response to different colors determine the level of annoyance
Convection in Scaled Turbine Internal Cooling Passages With Additive Manufacturing Roughness (2021)

Abstract Additive manufacturing processes, such as direct metal laser sintering (DMLS), enable the creation of novel turbine cooling internal passages and systems. However, the DMLS method produces a significant and unique surface roughness. Previous work in scaled passages analyzed pressure losses and friction factors associated with the rough surfaces, as well as investigated the velocity profiles and turbulent flow characteristics within the passage. In this study, the heat transfer characteristics of scaled additively manufactured surfaces were measured using infrared (IR) thermography. Roughness panels were CNC machined from plates of aluminum 6061 to create near isothermal roughness elements when heated. Fluid resistance differences between the aluminum roughness panels and roughness panels constructed from ABS plastic using the same roughness patterns from McClain et al. (2020, “Flow in a Simulated Turbine Blade Cooling Channel With Spatially Varying Roughness Caused by Additive Manufacturing Orientation,” ASME Turbo Expo 2020, Turbomachinery Technical Conference and Exposition, Virtual Conference, Sept. 21–25, GT2020-16069) were investigated. Finally, the overall thermal performance enhancements and friction losses were assessed through the calculation of surface averaged “global thermal performance” ratios. The global thermal performance characterizations indicate results in-line with those found for traditional commercial roughness and slightly below traditional internal passage convection enhancement methods such as swirl chambers, dimples, and ribs. The passages investigated in this study do not include compressibility effects or the long-wavelength artifacts and channel geometric deviations observed by Wildgoose et al. (2020, “Impact of Additive Manufacturing on Internal Cooling Channels with Varying Diameters and Build Directions,” ASME Turbo Expo 2020, Turbomachinery Technical Conference and Exposition, Virtual Conference, Sept. 21–25, GT2020-15049). However, the results of this study indicate that, based on the roughness augmentation alone, artificial convective cooling enhancers such as turbulators or dimples may still be required for additively manufactured turbine component cooling.
Analysis of IEEE 802.11N-Like Transmission Techniques with and Without Prior CSI for Video Applications (2007)

Previous research into MIMO systems has focused little on optimisation for video transmission. In terms of multimedia transmission, spatial multiplexing (SM) is commonly proposed as the most suitable MIMO technique. Most SM-based video transport schemes look to exploit the multiplexing gain, which comes at the expense of a relatively high SNR, unless the channel state is known at the transmitter. Space-time block coding (STBC) is an attractive technique that does not provide the mapping flexibility of SM techniques, but does dramatically reduce the packet-error rate. This paper compares these techniques in terms of decoded video quality through simulations based on practical transmission scenarios. The use of multiple-description coding (MDC) is further proposed to provide a new class of wireless video transmission algorithms.
Combining content analysis of television programs with audience measurement (2012)

Combining content analysis of television programs with quantitative audience measurement can provide insights into customer reactions to advertisements and program content. This work introduces a system architecture that incorporates anonymous audience metrics from an operational IPTV environment with metadata from a content-based analysis of recorded programs. Evaluated on a collection of news programs, the system verifies that events derived from the audience metrics data stream correspond to media segmentation boundaries such as commercial breaks and topic changes. An automated system for executing multimodal media segmentation algorithms for commercial break and topic change detection is also discussed. Better understanding of audience reaction can help IPTV service providers plan infrastructure investments and help in managing multimedia content delivery networks.
Chemical Separations with Liquid Membranes (1996)

Liquid membrane technology is introduced and its position within the broader field of separation science is delineated. The different types of liquid membrane configurations are described. Advantages of using a carrier species in the liquid membrane to enhance both the efficiency and selectivity of facilitated transport are summarized and two types of transport mechanisms are compared. Following a description of the general organization for the volume into sections on theory and mechanism, carrier design, synthesis, and evaluation, and applications in chemical separations, the contents of each chapter are briefly summarized.
Catalytic activity of using tungsten oxide with hydrogen peroxide for methyl orange degradation (2020)

In this work, a tungsten oxide nanoparticle was developed with a simple method, using tungsten powder. The orthorhombic, hexagonal and monoclinic crystalline structures obtained were characterized by X-ray diffraction, scanning electron microscopy, as well as Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy. The coupling of these tungsten oxide nano particles with hydrogen peroxide is carried out on methyl orange removal from wastewater. The use of Hydrated orthorhombic particles showed the highest removal rate up to 89.7% comparatively to hexagonal and monoclinic crystalline structures respectively. The reusability of these particles showed a good stability with monoclinic crystalline structure after four cycles. Key words: Dyes, Tungsten Oxide, Catalysis, H2O2.we &nbsp;
Toward wireless receivers without crystals (2005)

In new low cost, low bit rate wireless protocols such as Zigbee/spl trade/ and Bluetooth/spl trade/, there is significant economic motivation to implement transceivers with a completely integrated alternative to quartz crystals. In this paper, we explore a differential detection based method of recovering a direct sequence spread spectrum signal with a receiver that does not have a crystal reference. Despite the additional frequency offset and phase introduced by using an integrated crystalless reference oscillator, we find that such a receiver is feasible and can perform sufficiently for many applications.
Synthesis and Characterization of the First Mononuclear NiIIPhosphorane Imino Complex (1998)

ADVERTISEMENT RETURN TO ISSUEPREVCommunicationNEXTSynthesis and Characterization of the First Mononuclear NiII Phosphorane Imino ComplexLaura Crociani, Francesco Tisato, Fiorenzo Refosco, Giuliano Bandoli, Benedetto Corain, and Luigi M. VenanziView Author Information ICTIMA-C.N.R., C.so Stati Uniti 4, 35020 Padova, Italy Dipartimento di Scienze Farmaceutiche Via Marzolo 5, 35131 Padova, Italy Dipartimento di Chimica Ingegneria Chimica e Materiali, Via Vetoio Coppito Due 67010 L'Aquila, Italy Centro Studio Stabilità Reattività Composti di Coordinazione CNR, Via Marzolo 1, 35131 Padova, Italy ETH Zentrum Laboratorium für Anorganische Chemie Universitästrasse 6 CH-8092 Zürich, Switzerland Cite this: J. Am. Chem. Soc. 1998, 120, 12, 2973–2974Publication Date (Web):March 17, 1998Publication History Received10 November 1997Published online17 March 1998Published inissue 1 April 1998https://doi.org/10.1021/ja9738440Copyright © 1998 American Chemical SocietyRIGHTS & PERMISSIONSArticle Views293Altmetric-Citations16LEARN 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 Read OnlinePDF (94 KB) Get e-AlertsSupporting Info (2)»Supporting Information Supporting Information SUBJECTS:Amines,Cations,Ligands,Mixtures,Particulate matter Get e-Alerts
Analysis of interaction attitudes using data-driven hand gesture phrases (2014)

Hand gesture is one of the most expressive, natural and common types of body language for conveying attitudes and emotions in human interactions. In this paper, we study the role of hand gesture in expressing attitudes of friendliness or conflict towards the interlocutors during interactions. We first employ an unsupervised clustering method using a parallel HMM structure to extract recurring patterns of hand gesture (hand gesture phrases or primitives). We further investigate the validity of the derived hand gesture phrases by examining the correlation of dyad's hand gesture for different interaction types defined by the attitudes of interlocutors. Finally, we model the interaction attitudes with SVM using the dynamics of the derived hand gesture phrases over an interaction. The classification results are promising, suggesting the expressiveness of the derived hand gesture phrases for conveying attitudes and emotions.
Vraagstukken chemische reactorkunde; ontleend aan het college m3 chemische reactorkunde (1982)

Deze verzameling vraagstukken is bedoeld als ondersteuning en oefening bij het bestuderen van de begins~len der Chemische Reactorkunde. Ze is ontleend aan de tentamens die sinds maart 1977 aan de Afdeling der Scheikundige Technologie door de auteurs zijn afgenomen. De vraagstukken zijn verdeeld over een aantal onoerwerpen die bij het onderwijs in de reactorkunde aan de TH's en HTS'en ter sprake komen. Binnen elk onderwerp zijn gelijksoortige vraagstukken bij elkaar gezet en is gepoogd een min of meer opklimmende moeilijkheidsgraad aan te houden. Aan het einde van het boekje zijn van alle vraagstukken de antwoorden opgenomen. Verder is van elk van de onderwerpen een karakteristiek vraagstuk nader, doch summier uitgewerkt. Voor docenten is bij de auteurs op verzoek een dergelijke summiere uitwerking van alle vraagstukken verkrijgbaar. Voor op- en aanmerkingen houden wij ons gaarne aanbevolen.
Removable organic antireflection coating (1996)

Preliminary studies with Brewer Science CD9 ARC have shown that high-intensity ultraviolet exposure results in significant changes in film properties, including thickness, plasma etch resistance, and develop rate. This process has been studied over a range of temperatures and exposure conditions, and their results are interpreted in terms of competing polymer main chain scission and crosslinking reactions. The process represents a path to improved etch performance, and the possibility exists for use of Brewer ARC in a bi-layer portable conformable mask resist scheme.
Biosurfactant-facilitated leaching of metals from spent hydrodesulphurization catalyst (2018)

This study, after further in-depth investigations, might lead to the development of an eco-friendly and economic technology to treat or even regenerate the environmentally hazardous spent HDS catalysts, which are generated in huge amounts by the petroleum refineries.
The Potential of Wearable Limb Ballistocardiogram in Blood Pressure Monitoring via Pulse Transit Time (2019)

The goal of this study was to investigate the potential of wearable limb ballistocardiography (BCG) to enable cuff-less blood pressure (BP) monitoring, by investigating the association between wearable limb BCG-based pulse transit time (PTT) and BP. A wearable BCG-based PTT was calculated using the BCG and photoplethysmogram (PPG) signals acquired by a wristband as proximal and distal timing reference (called the wrist PTT). Its efficacy as surrogate of BP was examined in comparison with PTT calculated using the whole-body BCG acquired by a customized weighing scale (scale PTT) as well as pulse arrival time (PAT) using the experimental data collected from 22 young healthy participants under multiple BP-perturbing interventions. The wrist PTT exhibited close association with both diastolic (group average r = 0.79; mean absolute error (MAE) = 5.1 mmHg) and systolic (group average r = 0.81; MAE = 7.6 mmHg) BP. The efficacy of the wrist PTT was superior to scale PTT and PAT for both diastolic and systolic BP. The association was consistent and robust against diverse BP-perturbing interventions. The wrist PTT showed superior association with BP when calculated with green PPG rather than infrared PPG. In sum, wearable limb BCG has the potential to realize convenient cuff-less BP monitoring via PTT.
Highly stable solid state dye lasers based on polymer-filled nanoporous silica aerogels (2004)

New hybrid matrices based on silica aerogels obtained under supercritical conditions, a highly porous material with porosityt up to 90%, have been synthesized. The open porous network of the aerogel was saturated with pyrromethene dyes solved in organic mooners, and polymerization took place inside of the silica structure. The resulting polymer filled nanoporous aerogels, cast in the form of cylindrical monoliths, were used as gain media in solid-state dye lasers. Under the demanding conditions of tightly focused transversal pumping with 532 nm, 5 mJ pulses at 10 Hz repetition rate, highly photostable laser emission was obtained.
Escape from Protacs®: Recent Developments in Protein Degradation With Small-Molecule Glues (2021)

Medicinal Chemistry Reviews is an outstanding 965 page volume providing timely and critical reviews of important topics in medicinal chemistry. It is provided free of charge to MEDI members in electronic format. Members can also order a print copy, for the cost of printing, shipping and handling
Synthesis and antimicrobial evaluation of new derivatives of diphenylsulfone. (1994)

New derivatives of diphenylsulfone have been synthesized and their antibacterial and antifungal activities evaluated. Their chemical structures have been established by means of analytical and NMR spectroscopic data.
Mechanical characterization of next generation eWLB (embedded wafer level BGA) packaging (2011)

Integrated Circuits fabricated on silicon are assembled in different forms of electronic packages and are used extensively in electronic products such as personal, portable, healthcare, entertainment, industrial, automotive, environmental and security systems. Current and future demand for these electronic systems in terms of performance, power consumption, reliable system at a reasonable price are met by developing advanced/appropriate silicon process technology, innovative packaging solutions with use of chip-package-system co-design, low cost materials, advanced assembly and reliable interconnect technologies. In this article packaging evolution for hand held application is discussed with special focus on next generation chip embedding technology called eWLB in detail. Currently 1st generation eWLB technology is available in the industry. This paper will highlight some of the recent advancements in component level and board level reliability of next generation eWLB technologies including multi-RDL, thin eWLB, extra large eWLB with multi-chip. Standard JEDEC tests were carried out to investigate component level reliability and both failure analysis was performed to investigate potential structural defects. Daisychain eWLBs were assembled with different package size and different configuration as like thin or multi-RDL or multi-die. Test vehicles were also tested for drop and TCoB (Temperature on Board) reliability in industry standard test conditions. Next generation test vehicles passed both drop and TCoB tests. There was more than 50% improvement of characteristic lifetime with thinned eWLB in TCoB test because of its enhanced flexibility of package. This paper also presents study of package warpage behavior with temperature profile which is important for understanding of mechanical behavior of next generation 3D eWLBs.
Ultrafast colorimetric detection of nucleic acids based on the inhibition of the oxidase activity of cerium oxide nanoparticles (2014)

A label-free colorimetric method to detect nucleic acids, which relies on target DNA induced shielding of the oxidase activity of CeO2 NPs, is developed. With this novel strategy, target nucleic acids can be identified within a few minutes and without the need for post-purification of PCR products.
Genome-Wide Copy Number Analysis Uncovers a New HSCR Gene: NRG3 (2012)

Hirschsprung disease (HSCR) is a congenital disorder characterized by aganglionosis of the distal intestine. To assess the contribution of copy number variants (CNVs) to HSCR, we analysed the data generated from our previous genome-wide association study on HSCR patients, whereby we identified NRG1 as a new HSCR susceptibility locus. Analysis of 129 Chinese patients and 331 ethnically matched controls showed that HSCR patients have a greater burden of rare CNVs (p = 1.50 × 10(-5)), particularly for those encompassing genes (p = 5.00 × 10(-6)). Our study identified 246 rare-genic CNVs exclusive to patients. Among those, we detected a NRG3 deletion (p = 1.64 × 10(-3)). Subsequent follow-up (96 additional patients and 220 controls) on NRG3 revealed 9 deletions (combined p = 3.36 × 10(-5)) and 2 de novo duplications among patients and two deletions among controls. Importantly, NRG3 is a paralog of NRG1. Stratification of patients by presence/absence of HSCR-associated syndromes showed that while syndromic-HSCR patients carried significantly longer CNVs than the non-syndromic or controls (p = 1.50 × 10(-5)), non-syndromic patients were enriched in CNV number when compared to controls (p = 4.00 × 10(-6)) or the syndromic counterpart. Our results suggest a role for NRG3 in HSCR etiology and provide insights into the relative contribution of structural variants in both syndromic and non-syndromic HSCR. This would be the first genome-wide catalog of copy number variants identified in HSCR.
Supplementary Movie 2 from TRAP1 Regulates Proliferation, Mitochondrial Function, and Has Prognostic Significance in NSCLC (2023)

&lt;p&gt;WMV - 9842K, Video of TRAP1-siRNA1 treated A549 cell growth.&lt;/p&gt;
Enhanced maturation of induced pluripotent stem (iPS) cell‐derived neurons by astrocyte‐conditioned medium: roles of differential regulation of Ca2+ channel and GABAA receptor activities (2012)

Astrocytes promote synaptogenesis in vitro , a development which may be crucial to generating appropriate stem cell derived models of neurodegenerative diseases. However, the mechanism(s) by which they exert such effects are currently unknown. We investigated the influence of mouse striatal astrocyte conditioned medium, at 7, 14 and 21 days, on the differentiation and maturation of human iPS‐derived neuroprogenitors using whole‐cell patch‐clamp and Ca 2+ imaging. Although the proportion of cells able to fire an action potential in response to depolarization was unaffected, the conditioned medium evoked: i) significant hyperpolarization of the membrane at rest; ii) upregulation of L‐, N‐ and R‐ type Ca 2+ channel function, and; iii) a dramatic increase in the proportion of spontaneously active cells. Increasing the extracellular [Ca 2+ ] from 0.6 to 1.8 mM resulted in accelerated neurogenesis and mimicked the enhanced maturity seen with astrocyte conditioned medium. These effects were blocked using specific inhibition of N‐ and L‐ type Ca 2+ channels or GABA A receptors. Taken together, these data demonstrate a clear role for GABA A ‐evoked depolarization, and consequent voltage‐gated Ca 2+ influx, in the process of neuronal maturation, and suggest that astrocytes may promote synaptogenesis, at least in part, via increased gain of the GABA excitation pathway. Funded by MRC and CHDI.
N-Terminal finger stabilizes the reversible feline drug GC376 in SARS-CoV-2 M pro (2021)

Abstract The main protease (M pro , also known as 3CL protease) of SARS-CoV-2 is a high priority drug target in the development of antivirals to combat COVID-19 infections. A feline coronavirus antiviral drug, GC376, has been shown to be effective in inhibiting the SARS-CoV-2 main protease and live virus growth. As this drug moves into clinical trials, further characterization of GC376 with the main protease of coronaviruses is required to gain insight into the drug’s properties, such as reversibility and broad specificity. Reversibility is an important factor for therapeutic proteolytic inhibitors to prevent toxicity due to off-target effects. Here we demonstrate that GC376 has nanomolar K i values with the M pro from both SARS-CoV-2 and SARS-CoV strains. Restoring enzymatic activity after inhibition by GC376 demonstrates reversible binding with both proteases. In addition, the stability and thermodynamic parameters of both proteases were studied to shed light on physical chemical properties of these viral enzymes, revealing higher stability for SARS-CoV-2 M pro . The comparison of a new X-ray crystal structure of M pro from SARS-CoV complexed with GC376 reveals similar molecular mechanism of inhibition compared to SARS-CoV-2 M pro , and gives insight into the broad specificity properties of this drug. In both structures, we observe domain swapping of the N-termini in the dimer of the M pro , which facilitates coordination of the drug’s P1 position. These results validate that GC376 is a drug with an off-rate suitable for clinical trials.
ChemInform Abstract: Discrete Allyl Complexes of Group 3 Metals and Lanthanides (2010)

Abstract Review: 61 refs.