gebhart/patrepeval huggingface dataset:
Effect of oxygen removal on hydrogen photoproduction in algae (1983)

Hydrogen photoproduction from water in Scenedesmus cells requires removal of oxygen by a reagent in contact with the algae. Both deoxyhemoglobin and deoxymyoglobin stimulated hydrogen production by reversible absorption of oxygen. Their effectiveness was greatly increased when other oxygen-combining reagents were present in a separate chamber with deoxyhemoglobin and deoxymyoglobin serving as reversible oxygen transfer agents.
Sketch-based interfaces for modeling and users' needs: Redefining connections (2012)

Abstract The goal of this paper is to reexamine assumptions about sketch-based interfaces for modeling in the context of designers' needs and practices. Research questions examine (a) the type of sketch support and (b) the timing of support. Both concepts try to determine when, what, why and how to augment design processes in a way that is useful to designers. Two experiments (one in architecture and one in product design) based on ergonomics theory are conducted and intend to question some of these assumptions. The Port Zeeland experiment examines how 20 novices perceive and copy a blurred architectural sketch, which provides clues for a sketch interpretation system. The “Tragere” experiment studies how 12 professional product designers, some of whom are “idea generators” and others “idea pursuers,” perceive, recognize, and handle a design sketch. The results take a designer's point of view in assessing the timing and value of sketch assistance in product design. The quantitative data analysis provides rich clues about when, why and how product sketches should be supported. The paper explores the strategies developed by designers to perceive and recognize graphical content and discusses the generation of three-dimensional volumes, the univocity state between sketches and three-dimensional models, and the treatment of features in freehand sketches. The paper concludes with observations on the timing and value of support, as first integrated in NEMo, a tool for early stage architectural design, and then in PEPS 3 , an early stage framework for product design.
The Relationship between Fundamental Motor Skill Proficiency and Participation in Organized Sports and Active Recreation in Middle Childhood (2017)

Motor skill proficiency in middle childhood is associated with higher physical activity levels at that age and is predictive of adolescent physical activity levels. Much of the previous research in this area has used accelerometry in determining these relationships, and as a result, little is known about what physical activities the children are engaging in. Therefore the aim of this study was to examine rates of participation in physical activities, the relationships between motor proficiency and how often children participate, and if there were gender-based differences in participation, motor skills, or the relationship between these variables. Participants were 400 boys and girls (Mean age = 9 years 6 months) in grade 4. Motor skills were assessed using the Test of Gross Motor Development-2 (TGMD-2) and physical activity participation was measured using the Children's Assessment of Participation and Enjoyment (CAPE). Descriptive statistics, chi-squared analyses, and multivariate analysis of variance (MANOVA) were used to examine activity patterns and whether these patterns differed by gender. Correlation coefficients were used to estimate the relationships between fundamental motor skill proficiency and participation. The boys and girls participated in many of the same activities, but girls were more likely to participate in most of the informal physical activities. More boys than girls participated in team sports, boys participated more frequently in team sports, and the boys' object control and locomotor skill proficiency were significantly associated with participation in team sports. There were some significant associations between motor skills and participation in specific activities; however it is not clear if participation is developing skillfulness or those who are more skilled are engaging and persisting with particular activities.
Heteroepitaxial Growth of 3C-SiC(111)on Si(110) Substrate Using Monomethylsilane (2006)

Abstract not Available.
Device-free detection of approach and departure behaviors using backscatter communication (2016)

Smart environments and security systems require automatic detection of human behaviors including approaching to or departing from an object. Existing human motion detection systems usually require human beings to carry special devices, which limits their applications. In this paper, we present a system called APID to detect arm reaching by analyzing backscatter communication signals from a passive RFID tag on the object. APID does not require human beings to carry any device. The idea is based on the influence of human movements to the vibration of backscattered tag signals. APID is compatible with commodity off-the-shelf devices and the EPCglobal Class-1 Generation-2 protocol. In APID an commercial RFID reader continuously queries tags through emitting RF signals and tags simply respond with their IDs. A USRP monitor passively analyzes the communication signals and reports the approach and departure behaviors. We have implemented the APID system for both single-object and multi-object scenarios in both horizontal and vertical deployment modes. The experimental results show that APID can achieve high detection accuracy.
How product quality drives profitability: the experience at Holiday Inn (2001)

Quality-management
Programmable logic arrays for prototype computer implementation (1990)

Discusses the prototyping of MUSHROOM, a RISC processor designed to support object-oriented and symbolic processing languages such as Smalltalk-80 and Lisp respectively. In many respects, MUSHROOM resembles the mass of RISC architectures now dominating the 32-bit processor market. The ability to reconfigure nearly instantaneously is clearly a major advantage of LCA devices over UV erasable or fuse programmable devices. By loading different configuration patterns, the same hardware can, for example, be readily used to implement many different versions of the processor architecture. Although dynamic re-configuration is useful in this respect, it is less useful in correcting errors as the time required for re-placement and re-routing can be substantial. For programmable devices, the logic density and IO connectivity of LCAs are unsurpassed. However, the matrix structure and programmable interconnect can lead to widely varying signal timings depending on the routing. Consequently, great care must be taken to eliminate long paths on critical signals. In contrast, the signal timings in the PAL style of programmable devices are much easier to determine and manage. >
Cis-trans Isomerase Isomerisation from Maleic Acid to Fumaric Acid (1961)

The author found a new enzyme which is capable of isomerising maleic acid to fumaric acid. The enzyme was isolated from a bacterium belonging to Pseudomonas sp. and was concentrated to eight times against the original extract. The biochemical properties were determined as follows: the enzyme required glutathione or cysteine for full activity and was inhibited completely by monoiodoacetate and p-chloromercuribenzoate.
Inspection in Semiconductor Manufacturing (1999)

Abstract The sections in this article are Defect Reduction Cycle in Semiconductor Manufacturing Inspection in the IC Manufacturing Process Life Cycle Optical Imaging Technology Laser‐Scattering Technology Measurement of Optical Scatter from Contaminants on Wafers Automatic Defect Classification Future Challenges Conclusions Acknowledgments
Optical parametric oscillation with intracavity sum-frequency generation (1993)

Theoretical calculations of an optical parametric oscillator containing an intracavity sum-frequency crystal are presented for the case in which only the signal beam from the parametric generation process oscillates in the cavity. The pump beam that is not converted in the parametric generation process is summed with the signal beam to produce a beam at the desired frequency. The stable steady-state configurations that completely deplete the incident pump radiation are determined. When the sum-frequency crystal precedes the parametric-oscillator crystal, steady states with nearly complete pump depletion can occur for over a factor of twelve variation in the pump intensity. Other regimes of operation display period-doubling routes leading to chaotic solutions. A numerical calculation for conversion of 1.064- mu m radiation to 589-nm light yields an intensity conversion efficiency of 86.6%.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Embryonic hybrid cells: a powerful tool for studying pluripotency and reprogramming of the differentiated cell chromosomes (2001)

The properties of embryonic hybrid cells obtained by fusion of embryonic stem (ES) or teratocarcinoma (TC) cells with differentiated cells are reviewed. Usually, ES-somatic or TC-somatic hybrids retain pluripotent capacity at high levels quite comparable or nearly identical with those of the pluripotent partner. When cultured in vitro, ES-somatic- and TC-somatic hybrid cell clones, as a rule, lose the chromosomes derived from the somatic partner; however, in some clones the autosomes from the ES cell partner were also eliminated, i.e. the parental chromosomes segregated bilaterally in the ES-somatic cell hybrids. This opens up ways for searching correlation between the pluripotent status of the hybrid cells and chromosome segregation patterns and therefore for identifying the particular chromosomes involved in the maintenance of pluripotency. Use of selective medium allows to isolate in vitro the clones of ES-somatic hybrid cells in which "the pluripotent" chromosome can be replaced by "the somatic" counterpart carrying the selectable gene. Unlike the TC-somatic cell hybrids, the ES-somatic hybrids with a near-diploid complement of chromosomes are able to contribute to various tissues of chimeric animals after injection into the blastocoel cavity. Analysis of the chimeric animals showed that the "somatic" chromosome undergoes reprogramming during development. The prospects for the identification of the chromosomes that are involved in the maintenance of pluripotency and its cis- and trans-regulation in the hybrid cell genome are discussed.
Virtual Desktop Infrastructures: Architecture, survey and green aspects proof of concept (2016)

Virtual Desktop Infrastructure (VDI) is a new generation of cloud service in which users operating systems execute in a cloud data center. Users can access their desktops and applications by using thin client devices. This thin client is consisting of only a screen attached with low power CPU. This new paradigm of delivering remote desktop provides benefits in terms of flexibility, cost reduction, data security and energy saving which are the green benefits from using VDI. VDI becomes an important technology in green computing and energy saving. In this paper, we present and review the green benefits for using VDI in large and small organizations. The usefulness and energy-saving features of VDI are also illustrated by some experiments.
Supracrystals of <i>N</i>-Heterocyclic Carbene-Coated Au Nanocrystals (2014)

Controlling the generation of organized 3D assemblies of individual nanocrystals, called supracrystals, as well as their properties, is an important challenge for the design of new materials in which the coating agent plays a major role. We present herein a new generation of structured fcc Au supracrystals made of N-heterocyclic carbene (NHC)-coated Au nanocrystals. The 3D assemblies were achieved by using benzimidazole-derived NHCs tailored with long alkyl chains at different positions. The average size of the nanocrystal precursors (4, 5, or 6 nm) and their ability to self-assemble were found to be dependent on the length, orientation, and number of alkyl chains on the NHC. Thick and large supracrystal domains were obtained from 5 nm Au nanocrystals coated with NHCs substituted by C14 alkyl chains on the nitrogen atoms. Here, the geometry of both the Ccarbene–Au and N–Calkyl bonds induces a specific orientation of the alkyl chains, different from that of alkylthiols, resulting in Au surface covering by the chains. However, the edge-to-edge distances in the supracrystals suggest that the supracrystals are stabilized by interdigitation of neighboring nanocrystals alkyl chains, whose terminal part must point outward with the appropriate geometry.
Automatic Road Extraction based on Normalized Cuts and Level set Methods (2011)

Automatic road network extraction based on high resolution satellite image for urban planning holds great potential for significant reduction of database development/updating cost and turnaround time. Satellite remote sensing has been recognized worldwide as an effective technology for the monitoring and mapping the urban development. Two approaches for road network extraction for an urban region have been proposed. When an image is considered in original form it is difficult and computationally expensive to extract roads due to presence of other road-like features with straight edges. Hence roads are first extracted as elongated regions by removing bright regions (that mostly represent the buildings, parking lots and other open spaces), non-linear noise segments are removed median filtering (based upon the fact that road networks constitute large number of small linear structures).The roads are then modeled as boundaries and are extracted using Level set and Normalized cuts methods .Finally The extracted roads are overlayed on the original image. The experimental results show that these approaches are efficient in extracting road segments in urban region from high resolution satellite images. Evaluation of the results carried out by comparing the level set and normalized cuts results with manually extracted reference data. The methods were applied on the high resolution IKONOS image of urban area of Hobart, Australia.
Determination of sulfur dioxide by ultraviolet absorption spectrometry (1973)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDetermination of sulfur dioxide by ultraviolet absorption spectrometryAugusta. SytyCite this: Anal. Chem. 1973, 45, 9, 1744–1747Publication Date (Print):August 1, 1973Publication History Published online1 May 2002Published inissue 1 August 1973https://doi.org/10.1021/ac60331a050Request reuse permissionsArticle Views709Altmetric-Citations41LEARN 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 (472 KB) Get e-Alertsclose Get e-Alerts
Independent blockade of cerebral vasodilation from acetylcholine and nitric oxide (1988)

We investigated the mechanisms of cerebral arteriolar dilation from topical acetylcholine and the nitrovasodilators, sodium nitroprusside, nitroglycerin, and nitric oxide, in anesthetized cats equipped with cranial windows for the observation of the cerebral microcirculation. Acetylcholine-mediated dilation was eliminated by topical methylene blue. This blockade was reversed by either topical superoxide dismutase, catalase, or deferoxamine. Nitroprusside- and nitric oxide-induced dilation were not affected by methylene blue. Vasodilation from the nitrovasodilators was significantly diminished by topical nitro blue tetrazolium, but acetylcholine-mediated dilation was unaffected by nitro blue tetrazolium. Neither methylene blue nor nitro blue tetrazolium affected dilation from topical 8-bromoguanosine 3',5'-cyclic monophosphate. These data show that methylene blue selectively blocks acetylcholine-mediated endothelium-dependent dilation by generating oxygen radicals. The mechanism involved is hydroxyl radical-mediated oxidation of endothelium-derived relaxing factor. Nitro blue tetrazolium selectively blocks dilation from the endothelium-independent nitrovasodilators. The endothelium-derived relaxing factor generated by acetylcholine in the cerebral microcirculation is not nitric oxide.
On-Demand Software Streaming System for Embedded System (2006)

Many embedded computers are running with extremely limited resources and the need for optimizing resource utilization is increasing. In this paper we present the design and implementation of software streaming system that can reduce user waiting time and improve storage utilization. While traditional operating system loads program from local storage, software streaming system loads it from a remote server. The software streaming server divides executable file into basic code blocks and sends only the required code blocks instead of the whole file. We have implemented the streaming system on the embedded Linux using a streaming file system. Experimental results show that our streaming system can save storage up to 50%. Using our software streaming technique, embedded system can provide shorter waiting time to users when using new application as compared to traditional system
Synthesis, Characterization, and Photocatalytic Activity of Titania and Niobia Mesoporous Molecular Sieves (1998)

Mesoporous titania and niobia molecular sieves were prepared by a ligand-assisted templating method. For comparison, titania samples were also prepared by simple hydrolysis and condensation of Ti alkoxide in the absence of templating agents. All materials were thoroughly characterized by UV−vis reflectance spectroscopy, N2 adsorption, and X-ray diffraction. The UV absorption thresholds, and thus the optical band gaps, of as-synthesized mesoporous titania and niobia were similar to those of bulk phase, crystalline reference materials. Adsorption of N2 showed that extremely high surface area materials were synthesized by the templating method as long as thermal treatments were moderate. Higher temperature caused loss in surface area and partial crystallization of the sample. Elemental analysis revealed that neither high-temperature calcination nor solvent extraction removed the phosphorus component of the template used in the synthesis of mesoporous titania. However, solvent extraction of the template was effective for the mesoporous niobia sample. The transition metal oxides were tested as photocatalysts in the liquid-phase oxidative dehydrogenation of 2-propanol to acetone. The observed quantum yield of the reaction was 0.45 over Degussa P25, a standard titania catalyst. However, mesoporous titania converted 2-propanol with a very low quantum yield of 0.0026. Amorphous titania synthesized by alkoxide hydrolysis also exhibited a very low photocatalytic activity for the reaction. The quantum yield increased as the amorphous titania was crystallized to greater extents. A very low quantum yield was also found for the mesoporous niobia sample compared to a crystalline standard. Apparently, the surface reactivities of the poorly crystallized samples were suppressed by defects that act as electron−hole traps.
Nonequilibrium Electrokinetic Effects in Beds of Ion-Permselective Particles (2004)

Electrokinetic transport of fluorescent tracer molecules in a bed of porous glass beads was investigated by confocal laser scanning microscopy. Refractive index matching between beads and the saturating fluid enabled a quantitative analysis of intraparticle and extraparticle fluid-side concentration profiles. Kinetic data were acquired for the uptake and release of electroneutral and counterionic tracer under devised conditions with respect to constant pressure-driven flow through the device and the effect of superimposed electrical fields. Transport of neutral tracer is controlled by intraparticle mass transfer resistance which can be strongly reduced by electroosmotic flow, while steady-state distributions and bead-averaged concentrations are unaffected by the externally applied fields. Electrolytes of low ionic strength caused the transport through the charged (mesoporous) beads to become highly ion-permselective, and concentration polarization is induced in the bulk solution due to the superimposed fields. The depleted concentration polarization zone comprises extraparticle fluid-side mass transfer resistance. Ionic concentrations in this diffusion boundary layer decrease at increasing field strength, and the flux densities approach an upper limit. Meanwhile, intraparticle transport of counterions by electromigration and electroosmosis continues to increase and finally exceeds the transport from bulk solution into the beads. A nonequilibrium electrical double layer is induced which consists of mobile and immobile space charge regions in the extraparticle bulk solution and inside a bead, respectively. These electrical field-induced space charges form the basis for nonequilibrium electrokinetic phenomena. Caused by the underlying transport discrimination (intraparticle electrokinetic vs extraparticle boundary-layer mass transfer), the dynamic adsorption capacity for counterions can be drastically reduced. Further, the extraparticle mobile space charge region leads to nonlinear electroosmosis. Flow patterns can become highly chaotic, and electrokinetic instability mixing is shown to increase lateral dispersion. Under these conditions, the overall axial dispersion of counterionic tracer can be reduced by more than 2 orders of magnitude, as demonstrated by pulse injections.
Patterned Color and Fluorescent Images with Polydiacetylene Supramolecules Embedded in Poly(vinyl alcohol) Films (2006)

Abstract Poly(vinyl alcohol) (PVA) films embedded with functional polydiacetylene (PDA) are efficiently prepared for color and fluorescence imaging. Intensely blue films are obtained by mixing and drying solutions containing PDA vesicles and PVA. A blue‐to‐red color transition is observed upon heating the polymer films. In addition, selective UV irradiation (through a photomask) of PVA films containing diacetylene monomer results in the generation of micropatterned color (without heating) and both color and fluorescent images (after heating the films at 120 °C for 10 s). Patterned two‐color (blue and red) images in the polymer film are readily obtained by a sequential process of photomasked irradiation, heating, and unmasked irradiation.
Temperature Estimation of Stator Winding in Permanent Magnet Synchronous Motors Using d-Axis Current Injection (2018)

This paper presents a stator winding temperature detection method for permanent magnet synchronous motors (PMSMs) using a motor parameter estimation method. PMSM performance is highly dependent on the motor parameters. However, the motor parameters vary with temperature. It is difficult to measure motor parameters using a voltage equation without additional sensors. Herein, a stator winding temperature estimation method based on a d-axis current injection method is proposed. The proposed estimation method can be used to obtain stator temperatures and to achieve reliable operation. The validity of the proposed method is verified through simulations and experimental results.