gebhart/patrepeval huggingface dataset:
Silicon photonics packaging for highly scalable optical interconnects (2015)

Big Data and cloud-based applications drive the increasing amount of data traffic between and within data centers. Optical interconnect technology offers a larger bandwidth-distance product, interconnect density and power efficiency as copper based links. Integrated silicon photonics provides a tight integration between the optical functions with electronics on a single silicon die at the competitive cost-level of CMOS technology. All necessary silicon photonic building blocks operating at 1.3 μm and 1.55 μm have already been demonstrated. However, one of the remaining challenges is the system-level assembly, including a scalable connectorization scheme for very high optical I/O counts. To overcome this limitation, we demonstrate in this paper a silicon photonic packaging solution using polymer waveguides, which can be routed tightly to the silicon chip edge. As a first step towards this implementation, the optical coupling between a silicon photonics chip and the polymer waveguides is here discussed. The experimental results of the coupling loss and tolerance to misalignments between a silicon waveguide and a single-mode polymer waveguide processed on the chip are reported.
Process behavior and stability in short circuit gas metal arc welding (1999)

In this paper, the results of an investigation dealing with short circuit gas metal arc welding with the emphasis on process stability are presented. Welding runs were made under different conditions and, during each run, the different process parameters were continuously monitored. It was found that maximum process stability is reached under specific welding conditions. Outside this maximum, either irregular material transfer takes place with a tendency for open arc droplet transfer or stubbing of the welding wire in the weld pool starts to occur, accompanied by highly irregular melt-off behavior. The results show that process stability is directly related to weld pool oscillation. More specifically, it appears that process stability is maximum when the short circuit frequency equals the oscillation frequency of the weld pool. Under these conditions, the weld pool touches the droplet at the end of the electrode at every oscillation, which results in regular droplet transfer and high stability of the overall welding process.
Pautas para los Autores (2010)

La REVISTA SIGNOS INVESTIGACION EN SISTEMAS DE GESTION, tiene como proposito servir de medio de divulgacion para las reflexiones, la discusion y los resultados de investigacion en temas relacionados con la calidad, la gestion de la calidad, los diversos modelos de gestion normalizados y la responsabilidad social, asi como de experiencias referidas a la aplicabilidad, la innovacion y la pertinencia de las teorias, los modelos y los sistemas de gestion, en organizaciones privadas y publicas.
MOS Adaptive Memory Elements as Weights in an Adaptive Pattern Classifier (1966)

A solid-state adaptive memory element compatible with integrated network circuitry and a pattern classifier employing the unique adaption properties of this element are described. Each individual element consists of a resistor, a diode, and a special purpose MOS transistor all fabricated on a silicon substrate. Adaption in this case is accomplished by changing the electrical characteristics of the MOS transistor. This element is combined with a fixed reference resistor in a current-summing scheme to form a useful adaptive weight having both positive and negative values. The circuitry necessary for controlling the adaption of the element and its use as a weight during pattern classification is relatively simple and completely compatible with established integrated circuit technology. The pattern classifier can easily be trained to classify the majority of a given group of input patterns correctly according to arbitrarily selected "desired outputs."
Safety and limit states design for reinforced concrete (1976)

This state-of-art paper reviews the concept of limit states design. Following a brief review of statistical definitions the sources of variability in reinforced concrete structures are reviewed. Methods of defining structural safety are reviewed. Following a derivation of the procedures used to compute load and [Formula: see text] factors, a series of [Formula: see text] factors compatible with the 1975 National Building Code of Canada load factors are computed. With the exception of the value for shear the new [Formula: see text] factors are lower than the current American Concrete Institute and Canadian Standards Association values by about the amount of the ratio of load factors in National Building Code of Canada and American Concrete Institute. The computed [Formula: see text] for shear is considerably lower than the corresponding value from the American Concrete Institute Code. An Appendix traces the development of the American Concrete Institute load and [Formula: see text] factors.
Accelerated Carbonation Curing as a Means of Reducing Carbon Dioxide Emissions (2020)

Globally, carbon dioxide concentration has immensely increased post the industrial revolution. With more greenhouse gases generated from human activities, more radiation is being absorbed by the Earth’s atmosphere, causing an increase in global temperature. The phenomenon is referred to as the greenhouse gas effect. Alone, the cement industry contributes to approximately 5–8% of the global greenhouse gas emissions. Scientists and environmentalists have proposed different scenarios to alleviate such emissions. Among these, accelerated carbonation curing has been advocated as a promising mechanism to permanently sequester carbon dioxide. It has been applied to numerous construction applications, including concrete masonry blocks, concrete paving blocks, ceramic bricks, concrete pipes, and cement-bonded particleboards. Experimental results have shown that not only does it significantly reduce the carbon emissions, it also improves the mechanical and durability properties of carbonated products. The process enhances material performance, offers environmental benefits, and provides an excellent means to recycle carbon dioxide.
A powerful wide-area information client (2002)

Wide-area information sharing is rapidly gaining momentum. However, current information systems provide inadequate functionality for users to efficiently and effectively search and use the information made available. Users are faced with a vast information space apparently in disarray. Assuming current client-server information system architecture, we argue in this paper that more functionality is needed on the information client side. We describe an information client prototype that supports (1) the use of object technology to model the information space, (2) declarative querying as a complement to navigational search, (3) uniform access and integration of data from diverse sources, and (4) user-specified and transparent caching that is integrated with permanent local storage of remote data. We also identify the needed support from the server side to better achieve these capabilities.
Molecular cloning and functional characterization of the cDNA encoding the murine thiopurine <i>S</i>‐methyltransferase (TPMT) (1998)

Thiopurine S-methyltransferase (TPMT) is a cytosolic enzyme that catalyzes S-methylation of aromatic and heterocyclic sulfhydryl compounds, including anticancer and immunosuppressive thiopurines. Here we report the isolation and functional characterization of the murine TPMT cDNA. The screening of expressed sequence tags database led to isolation of a murine cDNA clone containing an uninterrupted ORF encoding the protein with an amino acid sequence that is 82% similar and 78% identical to the human TPMT. The expression product of the murine cDNA in rabbit reticulocyte and wheat germ lysate coupled transcription-translation systems showed TPMT enzymatic activity. We conclude that the isolated cDNA clone represents the murine TPMT cDNA.
MDSINE: Microbial Dynamical Systems INference Engine for microbiome time-series analyses (2016)

Predicting dynamics of host-microbial ecosystems is crucial for the rational design of bacteriotherapies. We present MDSINE, a suite of algorithms for inferring dynamical systems models from microbiome time-series data and predicting temporal behaviors. Using simulated data, we demonstrate that MDSINE significantly outperforms the existing inference method. We then show MDSINE's utility on two new gnotobiotic mice datasets, investigating infection with Clostridium difficile and an immune-modulatory probiotic. Using these datasets, we demonstrate new capabilities, including accurate forecasting of microbial dynamics, prediction of stable sub-communities that inhibit pathogen growth, and identification of bacteria most crucial to community integrity in response to perturbations.
On-Probe Solid-Phase Extraction/MALDI-MS Using Ion-Pairing Interactions for the Cleanup of Peptides and Proteins (1998)

Samples originating from biological sources often contain a complex mixture of inorganic salts, buffers, chaotropic agents, surfactants/detergents, preservatives, and other solubilizing agents. However, the presence of these contaminants virtually ensures the failure of any subsequent analysis of the sample by matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS). Sample cleanup procedures, therefore, must be performed prior to MALDI-MS analysis. This paper reports a probe-surface derivatization method that greatly simplifies this sample preparation process. MALDI probes possessing self-assembled monolayers (SAMs) terminated with ionic functional groups can rapidly extract peptides/proteins via ionic interactions from < or = 1-microL volumes of sample solutions placed directly on their surface. We have found that MALDI probes modified in this manner are a practical solution for analyzing very small volumes of peptide/protein solutions contaminated with high levels of inorganic salts, buffers, detergents, chaotropic agents, and other solubilizing agents.
Direct coupling of polymer‐based microchip electrophoresis to online MALDI‐MS using a rotating ball inlet (2005)

We report on the coupling of a polymer-based microfluidic chip to a MALDI-TOF MS using a rotating ball interface. The microfluidic chips were fabricated by micromilling a mold insert into a brass plate, which was then used for replicating polymer microparts via hot embossing. Assembly of the chip was accomplished by thermally annealing a cover slip to the embossed substrate to enclose the channels. The linear separation channel was 50 microm wide, 100 microm deep, and possessed an 8 cm effective length separation channel with a double-T injector (V(inj) = 10 nL). The exit of the separation channel was machined to allow direct contact deposition of effluent onto a specially constructed rotating ball inlet to the mass spectrometer. Matrix addition was accomplished in-line on the surface of the ball. The coupling utilized the ball as the cathode transfer electrode to transport sample into the vacuum for desorption with a 355 nm Nd:YAG laser and analyzed on a TOF mass spectrometer. The ball was cleaned online after every rotation. The ability to couple poly(methylmethacrylate) microchip electrophoresis devices for the separation of peptides and peptide fragments produced from a protein digest with subsequent online MALDI MS detection was demonstrated.
Recul de l'alimentation en république Dominicaine (1973)

H. J. Recul de l'alimentation en République Dominicaine. In: Population, 28ᵉ année, n°1, 1973. pp. 146-148.
Simulation of burst error models and an adaptive error control scheme for high speed data transmission over analog cellular systems (1991)

To realize high-speed data communication in a cellular system, the characteristics of mobile radio propagation paths (MRPP) and a robust error control scheme for poor circuit quality are studied. MRPP are analyzed by computer simulation, and an analysis method is described that uses a Markov model for burst errors generated by the simulation. By simulating the locus of moving vehicles, the relationship between the carrier-to-noise ratio (CNR), the fading frequency of a moving vehicle, and the three-states Markov model is obtained. An adaptive error control scheme (AECS) is developed as an effective high-speed data communication scheme in an analog cellular system. The effectiveness of the AECS is analyzed by simulating its application in a subcarrier transmission system with a 4800 b/s data transmission rate, using the three-states Markov model. The analysis method is verified and the characteristics of the AECS are evaluated using field data.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Spectral analysis of waiting time jitter in the presence of stuff threshold modulation (1990)

The Fourier transform of waiting time jitter in the presence of stuff threshold modulation is derived. Comparisons are made between power spectral densities and RMS jitter obtained analytically and by simulation. The Fourier transform enables the jitter performance to be evaluated in the presence of alternative stuff threshold modulation waveforms, required for example, in some SONET applications.
Ruthenium(II) macrocyclic complexes with inert chloride and labile azines. Synthesis and properties of the macrocyclic complexes trans-chloro(azine)(1,4,8,11-tetraazacyclotetradecane)ruthenium(II), trans-[RuCl(cyclam)L]+ (1992)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTRuthenium(II) macrocyclic complexes with inert chloride and labile azines. Synthesis and properties of the macrocyclic complexes trans-chloro(azine)(1,4,8,11-tetraazacyclotetradecane)ruthenium(II), trans-[RuCl(cyclam)L]+Roberto Santana da Silva and Elia TfouniCite this: Inorg. Chem. 1992, 31, 15, 3313–3316Publication Date (Print):July 1, 1992Publication History Published online1 May 2002Published inissue 1 July 1992https://pubs.acs.org/doi/10.1021/ic00041a028https://doi.org/10.1021/ic00041a028research-articleACS PublicationsRequest reuse permissionsArticle Views191Altmetric-Citations29LEARN 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
Variable-geometry nonimaging optics devices (2001)

A new application of design techniques for nonimaging concentrators is presented. Variable Geometry Nonimaging Optics Devices are presented for 2D systems. These devices have a variable acceptance angle allowing for its continuous variation within a range of values. The relation between the sizes of entrance and exit apertures must then vary according to the laws of nonimaging optics. This implies a variation in the size of either the entrance or the exit aperture, resulting in two types of devices. Moveable mirrors are an integral part of the new devices discussed in this paper, with positions depending on the variable acceptance angle. These new combinations of optical and mechanical solutions, although not ideal, may represent approximation ideally.
Trends in the formulation of pesticides—an overview (1990)

Abstract The customer increasingly requires safer and more convenient pesticide formulations. Emulsifiable concentrates and wettable powders are nowadays viewed less favourably by farmers and registration authorities. Suspension concentrates are now common and water‐dispersible granules and emulsions in water are receiving increasing attention. Capsule suspensions offer both safer and more effective performance in favourable cases. For convenience the farmer requires multi‐component products, either as mixtures of active ingredients, which might be as suspoemulsions, or with built‐in enhancing surfactants and oils. Seed treatments are now required as aqueous suspensions and the seed is increasingly of interest as an eficient carrier for pesticides. Research into biological control agents sets the difficult challenge of formulating these products as viable organisms. Three examples of developments are described. These are the applications of polymeric surfactants for suspension concentrates and suspoemulsions, studies of enhancement of pesticide uptake with surfactants and developments in microencapsulation.
[Significance of serum ferritin level in testicular tumors]. (1991)

The clinical value of serum ferritin level in patients with testicular cancer was studied. Seven cases of seminoma and nine cases of non-seminoma from 1983 to 1989 were evaluated. The serum levels of ferritin, human chorionic gonadotropin (beta-HCG), alpha-fetoprotein (AFP), carcinoembryonic antigen (CEA) and lactate dehydrogenase (LDH) were estimated before and after treatment. Abnormally high values of serum ferritin before treatment were noted in 4/7 (57%) in seminoma, 3/9 (33%) in non-seminoma and 7/16 (44%) in total. The total rate showing abnormally high values of serum ferritin was lower than that of beta-HCG and LDH. Meanwhile it was the same as that of AFP and higher than that of CEA. Changes in the serum ferritin level did not always correspond with the clinical course. In 3 out of 6 tumor free patients, higher levels of serum ferritin before treatment became normal after treatment. In one patient with a high level of serum ferritin before treatment, the level of serum ferritin remained higher and retroperitoneal lymph node metastasis developed after treatment. In 9 cases with normal serum ferritin level, 7 showed the normal range of ferritin level throughout the treatment course. These findings suggests that in some patients with testicular cancer, the serum ferritin level might serve as a tumor marker indicating the efficacy of the treatment and the tumor recurrence.
Cytomegalovirus and the acquired immunodeficiency syndrome (1989)

The acquired immunodeficiency syndrome (AIDS) is complex in nature with one major aetiological factor but with numerous other agents exploiting the immune incompetence. Cytomegaloviruses (CMV) form a little-defined group of viruses which naturally persist in man and respond readily to the relaxation in immune surveillance. A role for CMV and other herpesviruses in potentiating the underlying infection with human immune deficiency virus (HIV) cannot be totally excluded but CMV is well established as a major opportunist in AIDS. They are considered responsible for a range of diseases in AIDS patients including retinitis, gastrointestinal disease, pneumonitis and, less frequently, encephalitis. The pyrophosphate analogue foscarnet (phosphonoformate) and the deoxyguanosine analogue ganciclovir have both been used to treat CMV infections in AIDS patients. Results of uncontrolled studies have indicated efficacy with both drugs but the work with ganciclovir is particularly encouraging. This communication provides a review of CMV infections in AIDS patients with special reference to the experiences to-date in the use of ganciclovir and foscarnet.
Bacterial protease activity, an indicator of bacterial pathogenicity in chronic wounds even in the absence of overt clinical signs (2012)

• Bacterial proteases are a type of virulence factor, which have been implicated in a range of medical conditions, including wound infections. • Clinical Signs of critical colonisation/infection may not be apparent in all chronic wounds. • Measuring CFU levels only in chronic wounds does not determine if bacteria are in a pathogenic state. • Testing wound fluid for bacterial protease activity may be a useful method for detecting the presence of pathogenic bacteria, at a clinically significant stage in the infection continuum. • On this basis, a new qualitative point of care test is under development to detect bacterial protease activity in chronic wounds, which may help identify the presence of pathogenic bacteria.
Zinc Oxide–Zinc Phthalocyanine Interface for Hybrid Solar Cells (2012)

The structural, electronic, and optical properties of a hybrid interface formed by zinc phthalocyanine (ZnPc) molecules adsorbed on the (101̅0) zinc oxide (ZnO) surface have been investigated by using ab initio and model potential theoretical methods. In particular, the attention has been focused on the effects of molecular assembling on the interface properties by considering cofacial and planar molecular aggregates on the surface. Present results show that planar aggregations provide a remarkable molecule-to-surface electronic coupling which can favor electron injection toward the substrate. Furthermore, we predict a blue shift of absorption bands in the case of cofacial aggregation and a red shift in the case of nanostructured planar J-stripes, which are in agreement with previous phenomenological models and give a firm theoretical support to observed relationships between red shift and molecular assembling. All together, present results indicate that structural and electronic properties can be achieved in ZnPc-sensitized ZnO surfaces of high potential interest for improving the efficiency of different kinds of hybrid photovoltaic cells.
Organic Photoelectrochemical Cell Mimicking Photoinduced Multistep Electron Transfer in Photosynthesis: Interfacial Structure and Photoelectrochemical Properties of Self-Assembled Monolayers of Porphyrin-Linked Fullerenes on Gold Electrodes (1999)

Abstract Self-assembled monolayers (SAMs) technique has been applied to porphyrin-linked fullerene systems to mimic supramolecular photoinduced charge-separation (CS) events in photosynthesis. Porphyrin-linked C60 molecules with a sulfide group were designed to self-assemble on a gold surface using S–Au interaction. The structure of the SAMs formed on gold electrodes was investigated by spectroscopic methods including X-ray photoelectron spectroscopy (XPS), ultraviolet (UV)-visible spectroscopic ellipsometry, UV-visible absorption spectroscopy, and Fourier transform infrared (FTIR) spectroscopy as well as electrochemical studies. These results indicate that the SAMs have loosely packed structure; the porphyrin-C60 molecules are tilted and nearly parallel onto the gold surface. Short-circuit photocurrent with a level of sub-μA cm−2 was observed for the photoelectrochemical cell in the presence of methylviologen (MV) under illumination with ca. 4 mW cm−2. The maximum intensity of the photocurrent in free-base porphyrin-C60 system is five times larger than that in the corresponding free-base porphyrin system, indicating that C60 is an effective mediator in multistep electron transfer (ET) processes. A possible mechanism for the photocurrent generation is discussed in terms of the photodynamics of porphyrin-linked fullerenes in solution.