gebhart/patrepeval huggingface dataset:
Knowledge graph based System model configuration design (2021)

Abstract When solving the complexity problem between different fields, traditional document-based system engineering (TSE) is difficult to meet current research and development needs, and model-based system engineering (MBSE) is the best choice. With the implementation and application of MBSE in enterprises, the system model files are gradually accumulated. Therefore, this paper studies the reusability of the system model and builds the system model knowledge graph to achieve efficient reuse of the existing system model. A product configuration method based on subgraph matching is proposed and by configuring the product, the designer can obtain more feasible solutions, and then get the best design solution. Finally, an example of remote sensing satellite design is given to verify the effectiveness of the method.
Dr. med. unequal to M.D. (2004)

Drug Prescribing for Patients with Chronic Kidney Disease in General Practice: a Cross-Sectional Study
Random DFB Fiber Laser for Remote (200 km) Sensor Monitoring Using Hybrid WDM/TDM (2016)

In this paper, a random distributed feedback fiber laser is proposed as a multiplexing scheme for ultralong range measurements (up to 200 km). Optical fiber sensors are time and wavelength multiplexed overcoming one of the main limitations of long-range sensing setups, which is their limited multiplexing capability. The direct modulation of the laser's cavity allows the interrogation of sensors by measuring the reflected power for different wavelengths and distances. Fiber Bragg gratings placed at different fiber locations and wavelengths have been interrogated in two different sensor networks. In addition, in order to improve the performance of the system, some features have been analyzed.
In vivo video-rate cellular-level full-field optical coherence tomography (2007)

Full-field optical coherence tomography (FF-OCT) capable of in vivo cellular-level imaging is demonstrated for nonscanning horizontal cross-sectional imaging. The system is based on a white light interference microscope illuminated by a thermal light source. A dual-channel two-dimensional (2-D) detection technique incorporated with a pair of CCD cameras has been developed, where a pair of interferometric images with phase difference of pi/2 are simultaneously captured using an achromatic phase shifter. By acquiring an additional pair of images with a conventional phase shift method, a horizontal cross section is derived from every two consecutive CCD frames, enabling OCT imaging at the video rate. Using an ultrabroad bandwidth illumination incorporated with relatively high NA (0.8 NA) water immersion objectives, an axial resolution of 0.8 microm and a transverse resolution of 0.7 microm are experimentally confirmed. A field of view of 215 microm x 215 microm is covered by the 500 x 500 pixel CCD cameras. We demonstrate, for what is believed to be the first time, in vivo cellular-level blood flow imaging of a Xenopus laevis tadpole by FF-OCT.
Chirped fiber Bragg gratings for optical dispersion compensation: how to improve their fabrication accuracy (1996)

Sufficiently accurate, chirped fiber Bragg gratings for dispersion compensation at high bit rates are difficult to fabricate. We propose to determine local grating errors from a measured complex reflection spectrum and to correct them by UV light postprocessing. A chirped, sampled fiber Bragg grating could compensate for the dispersion of 50 km of standard fiber in four 40 Gb/s channels but the required fabrication accuracy is extremely high. We have proposed to determine stitch errors between adjacent phase mask areas, and longitudinal refractive index variations, from the measured complex frequency response of the grating. Local UV light postprocessing then allows to correct the errors. We believe this method will permit production of precise fiber Bragg gratings for dispersion compensation and other purposes.
Significant role of macrophages in human cancers associated with Epstein-Barr virus (Review) (2014)

Epstein-Barr virus (EBV) is a ubiquitous pathogen that was first identified as a human cancer virus. Many human cancers are associated with EBV, and we demonstrated that EBV infects macrophages. Macrophages infected with EBV show a close correlation with many human cancers, and thus more attention must be given to the role of macrophages infiltrating into cancer tissues associated with EBV. In this review, I discuss the role of macrophages in the process of EBV-associated oncogenesis with regard to interleukin-10.
Dosimetry of X-Rays and Gamma-Rays by Radiophotoluminescence (1951)

The effects of high energy radiation on the luminescence properties of solids are surveyed. Of the four effects considered—radiophotoluminescence, radiophotostimulation, radiothermoluminescence, and the ``killing'' of luminescence by x-rays or gamma-rays—the first effect is shown to have advantages in principle over the others as a basis for dosimetry. The absorption, excitation, emission, sensitivity, energy dependence, and stability characteristics of a radiophotoluminescent Ag-activated phosphate glass are described. It is shown that dosage measurements can be made with this material, employing a simple fluorophotometer, from 10 roentgens to a few thousand roentgens of gamma-rays. By proper shielding, such a dosimeter element can be made reasonably independent of energy. The dosage indication obtained is quite stable with time and is not seriously affected by exposure of the glass to visible or ultraviolet light or to temperatures in the range of −70° to +100°C. Because of its sensitivity range and its stability over a wide range of ambient conditions, the dosimeter appears to be particularly suited for monitoring personnel that may be exposed to rather high doses of gamma-rays, such as may be encountered in A-bomb explosions.
[The significance of laser Doppler flowmetry for the prognosis and outcome evaluation of lumbar sympathectomy in patients with obliterating vascular arteriosclerosis of lower extremities]. (2003)

The microcirculation state in lower extremities was studied using laser Doppler flowmetry in 37 patients with obliterating atherosclerosis before and after lumbar sympathectomy performance. It was established that laser Doppler flowmetry may be applied for estimation of the microcirculation bed functional state and prognosis of the lumbar sympathectomy results.
Method Research on Chemical Reaction Quantitative Risk Assessment (2011)

Based on the initial exothermic temperature, the energy release rate,the adiabatic reaction temperature, thermal ignition temperature and(early) response to the boiling point of the quantitative risk index classification of dangerous chemical reaction method were introduced.AHP was applied to determine the weight of each parameter and two normal distribution functions were used for dimensionless of the value of indicators. The response obtained by calculating the risk index for the validation of several substances,the quantitative assessment to be more satisfactory results.
Experiments on input impedance of tilted planar monopole antenna (2000)

The input impedance of tilted planar monopole antennas with different shapes is experimentally investigated. The effects of the different oblique angles between the planar element and the vertical on the input impedance and resonant frequency are discussed. © 2000 John Wiley & Sons, Inc. Microwave Opt Technol Lett 26: 202–204, 2000.
Development of High Vacuum Technique (1948)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDevelopment of High Vacuum TechniqueSaul DushmanCite this: Ind. Eng. Chem. 1948, 40, 5, 778–780Publication Date (Print):May 1, 1948Publication History Published online1 May 2002Published inissue 1 May 1948https://pubs.acs.org/doi/10.1021/ie50461a003https://doi.org/10.1021/ie50461a003research-articleACS PublicationsRequest reuse permissionsArticle Views59Altmetric-Citations1LEARN 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 options Get e-Alerts
Developing a Novel Hybrid Biogeography-Based Optimization Algorithm for Multilayer Perceptron Training under Big Data Challenge (2018)

A Multilayer Perceptron (MLP) is a feedforward neural network model consisting of one or more hidden layers between the input and output layers. MLPs have been successfully applied to solve a wide range of problems in the fields of neuroscience, computational linguistics, and parallel distributed processing. While MLPs are highly successful in solving problems which are not linearly separable, two of the biggest challenges in their development and application are the local-minima problem and the problem of slow convergence under big data challenge. In order to tackle these problems, this study proposes a Hybrid Chaotic Biogeography-Based Optimization (HCBBO) algorithm for training MLPs for big data analysis and processing. Four benchmark datasets are employed to investigate the effectiveness of HCBBO in training MLPs. The accuracy of the results and the convergence of HCBBO are compared to three well-known heuristic algorithms: (a) Biogeography-Based Optimization (BBO), (b) Particle Swarm Optimization (PSO), and (c) Genetic Algorithms (GA). The experimental results show that training MLPs by using HCBBO is better than the other three heuristic learning approaches for big data processing.
Economic Event Detection in Company-Specific News Text (2018)

This paper presents a dataset and supervised classification approach for economic event detection in English news articles. Currently, the economic domain is lacking resources and methods for data-driven supervised event detection. The detection task is conceived as a sentence-level classification task for 10 different economic event types. Two different machine learning approaches were tested: a rich feature set Support Vector Machine (SVM) set-up and a word-vector-based long short-term memory recurrent neural network (RNN-LSTM) set-up. We show satisfactory results for most event types, with the linear kernel SVM outperforming the other experimental set-ups.
An Introduction to Quantum Computing using Cavity QED concepts (2012)

We present a concise but complete conceptual treatment of quantum computing implemented with Cavity Quantum Electrodynamics (CQED. The paper is intended as a brief overview for professionals who are coming over to the field from other areas and who may have not discussed the concepts behind quantum computing during their technical training.
Estimation of gas hydrate and free gas saturation, concentration, and distribution from seismic data (2002)

Abstract Gas hydrates contain a major untapped source of energy and are of potential economic importance. The theoretical models to estimate gas hydrate saturation from seismic data predict significantly different acoustic/ elastic properties of sediments containing gas hydrate; we do not know which to use. Thus, we develop a new approach based on empirical relations. The water-filled porosity is calibrated (using well-log data) to acoustic impedance twice: one calibration where gas hydrate is present and the other where free gas is present. The water-filled porosity is used in a combination of Archie equations (with corresponding parameters for either gas hydrate or free gas) to estimate gas hydrate or free gas saturations. The method is applied to single-channel seismic data and well logs from Ocean Drilling Program leg 164 from the Blake Ridge area off the east coast of North America. The gas hydrate above the bottom simulating reflector (BSR) is estimated to occupy ∼3–8% of the pore space (∼2-6% by volume). Free gas is interpreted to be present in three main layers beneath the BSR, with average gas saturations of 11–14%, 7–11%, and 1–5% of the pore space (6–8%, 4–6%, and 1–3% by volume), respectively. The estimated saturations of gas hydrate are very similar to those estimated from vertical seismic profile data and generally agree with those from independent, indirect estimates obtained from resistivity and chloride measurements. The estimated free gas saturations agree with measurements from a pressure core sampler. These results suggest that locally derived empirical relations between porosity and acoustic impedance can provide cost-effective estimates of the saturation, concentration, and distribution of gas hydrate and free gas away from control wells.
Scene Transition based on Image Registration for Web-based Virtual Tour. (2005)

Web-based Virtual Tour has attractive advantages over traditional 3D rendering approach in that it does not require labor intensive 3D modeling process or high bandwidth for realistic virtual tour yet provides virtual tour with free navigation and immersive experience of walking around through the WWW. In this paper, we focus on presenting a robust image registration technique for a web-based virtual tour system, Easy and Effective Virtual Tour (EEVT). EEVT constructs virtual tour from a set of images. It uses several snap shots of conventional photos without special tools, builds a simple 3D space within each photo using the spidery mesh technique, and expands the virtual spaces by connecting each space together. The connection between images is achieved by image registration, which finds correspondences automatically and estimates transformations. The image registration process is crucial for virtual tour applications in order to compose smooth transitional scenes between two views so that virtual tourists perceive continuous scenes during navigation. Our registration method uses a parametric approach and it includes the following key features: 1) coarse-to-fine hierarchical estimation 2) fast computation based on image feature-correspondences 3) FFT-based global matching 4) automatic outlier removal by RANSAC. The expanded virtual space creates a sense of navigational freedom for virtual tourists with less distorted viewing.
Waldemar Gurian (1955)

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Dithienylcyclopentene optical switches: towards photoresponsive supramolecular materials (2001)

De zelf-assemblage van kleine moleculaire bouwstenen tot grotere supramoleculaire systemen is een belangrijke benadering om nieuwe materialen met nanodimensies te maken. Een bekend voorbeeld zijn de organogelatoren. Dit zijn moleculen die aggregeren in oplossing, bijvoorbeeld via waterstofbruggen, en zo een netwerk vormen dat in staat is om de oplosmiddelmoleculen vast te houden, waardoor er een gel is gevormd. Zie: Samenvatting
UPTAKE OF NEW AND REGENERATED FORMS OF NITROGEN IN PRIMARY PRODUCTIVITY1 (1967)

The use of 15 N‐labeled compounds to obtain specific uptake rates for the various nitrogen sources available to the phytoplankton makes it possible to separate the fractions of primary productivity corresponding to new and regenerated nitrogen in the euphotic zone of the ocean. Measurements of nitrate uptake as a fraction of ammonia plus nitrate uptake have been obtained from the northwest Atlantic and the northeast Pacific oceans. Mean values range from 8.3 to 39.5%, the former being characteristic of subtropical regions and the latter of northern temperate regions or coastal and inland waters. Nitrogen fixation is also a source of new nitrogen. Rates of nitrogen fixation are found to be as high or higher than nitrate uptake, in some cases suggesting an important role for nitrogen‐fixing phytoplankton. The role of zooplankton in regenerating nitrogen as ammonia in the Sargasso Sea is examined theoretically. Probably only about 10% of the daily ammonia uptake by phytoplankton is contributed by the zooplankton living in the upper 100 m.
Tyzzer's disease in rabbits in Britain (1977)

Tyzzer's disease seems to be a not uncommon cause of diarrhoea in rabbits in Britain. It may occur either epizootically or enzootically in affected rabbit units. The more acute form may present difficulties in diagnosis.
Observations on Neuromuscular Dysfunction in the Addington Outbreak (1956)

No abstract available.
The reproductive response of rams to thyroidectomy: mediation by impaired inhibin feedback rather than a change in LH pulsatility (2003)

A series of experiments was conducted to examine the mechanism by which removal of the thyroid glands in seasonally suppressed rams brings about rapid testicular growth. In the first experiment, thyroidectomy at the nadir of the testicular cycle (late winter) initiated testis growth without any detectable change in the extent of spermatogenesis compared with sham-operated controls. The serum concentration of FSH, but not LH, was also markedly increased by thyroidectomy. In the second experiment, serum FSH concentration was again increased by thyroidectomy in late winter but there was no effect of thyroidectomy on LH concentration, LH pulses (measured in frequent blood samples) or testosterone concentration. Furthermore, there was no evidence of a change in central dopaminergic inhibition of GnRH, as measured by the pulsatile LH response to an i.m. injection of the dopaminergic D(2) agonist bromocriptine or antagonist sulpiride. The rapid increase in FSH concentration occurred despite a markedly increased serum inhibin A concentration in thyroidectomized rams. Therefore, the efficacy of inhibin feedback was examined by testing the FSH-suppressive effect of an inhibin preparation (5 ml charcoal-stripped bovine follicular fluid i.v.) in long-term thyroidectomized and thyroid intact castrated rams. Bovine follicular fluid suppressed FSH concentrations in control rams as expected but in marked contrast, was completely without effect in thyroidectomized animals. In castrated rams, the FSH concentration was only marginally increased by thyroidectomy, indicating that there is a major component of the mediation of the effects of thyroidectomy that is testicular in origin. It was concluded that a reduction in the ability of endogenous inhibin to inhibit FSH release at the pituitary, rather than a hypothalamic mechanism, is the primary cause of the stimulation of testis growth by thyroidectomy.
Effector Functions of Helper T Cells (1993)

We have reviewed the basic pathways of postthymic development of CD4 T cells (Th) and attempted to pinpoint the regulatory events that lead to the formation of functional effectors and/or the polarization of their patterns of cytokine secretion, which endow CD4 T cells with distinct functions. One finding of these studies is that the major role of naive cells is not to carry out regulatory functions, but rather to serve as precursors of the effector and memory populations. We have shown not only the particularly impressive capacity of effector populations generated in vivo and in vitro to secrete cytokines upon restimulation, but also the impressive helper function of both primary and memory effectors, which make Th2-like patterns of cytokines.
A software-defined fusion storage system for PCM and NAND flash (2015)

In SSD-based storage systems, persistent data are stored in the NAND Flash and however manipulated in DRAM, causing the decoupled inefficiency. The data being closer to the processors are much easier to be lost due to the volatile property of DRAM, leading to serious data reliability problems. In the meantime, existing SSD technology exploits the properties of NAND Flash and leverages NAND Flash + controller + FTL architecture to improve system's performance. In this black-box-modeled structure, the data semantic information is hard to be transferred by conventional interface. Hence the SSD firmware fails to make full use of the performance potential of SSD in terms of the semantic information of data. Moreover, the host can't obtain physical characteristics and statistical information about SSD, failing to be used by the file system or I/O scheduling algorithm designed for the disks. In order to address these problems, we propose a software defined fusion storage system for PCM and NAND Flash. PCM can be defined as the same level storage or as a buffer of NAND Flash to reduce the WA (Write Amplification) of Flash and improve reliability. In this system, we expose the channels, erases counts and data distribution of PCM/NAND Flash to the host, design FTL algorithm close to file system to obtain more semantic information of data accessing, and manage the storage device as a non-transparent structure. To achieve these design goals, we implement a Host Fusion Storage Layer (HFSL) that supports flexible I/O schedule algorithm and address mapping of variable allocation size in the persistent superior performance of SSD. Extensive experimental results demonstrate the efficiency of the proposed schemes.
Variability and Functionalities of Salts Used in Traditional African Food Preparations (2019)

Aims: Determine the variability and usages of Traditional Alkaline Salts (TAS) used in Africa, specifically in Cameroon. Place and Duration of the Study: This study was done in different agro-ecological areas of Cameroon between January and August 2015. Methodology: Individual interviews of women (204) found in markets of different Agro-ecological areas of Cameroon (Sudano-sahelian, high Guinea savannah, Western highlands and Humid forest) by using a semi-structured questionnaire. Results: Traditional Alkaline Salts used in Cameroon are rocks (Lakes’ deposits) and plant-based salts (plant-based ashes, their solutions, their filtrates and evaporites of these filtrates). They are mainly used in food preparations, but also as drugs (rocks only). They are used in food preparations as technological auxiliary (preservatives, emulsifiers, taste improvers, color improvers/maintainers, texture improvers/modifiers) and for biological functionalities (avoidance of stomach distending and stomach cleaning of breastfeeding women). Conclusion: Diversity of TAS, their functionalities, frequency and level of use, raise up research issues on their chemical composition, the mechanism involved in their properties, their stability and their toxicology risk.