gebhart/patrepeval huggingface dataset:
Automatic barcode recognition method based on adaptive edge detection and a mapping model (2016)

An adaptive edge detection and mapping (AEDM) algorithm to address the challenging one-dimensional barcode recognition task with the existence of both image degradation and barcode shape deformation is presented. AEDM is an edge detection-based method that has three consecutive phases. The first phase extracts the scan lines from a cropped image. The second phase involves detecting the edge points in a scan line. The edge positions are assumed to be the intersecting points between a scan line and a corresponding well-designed reference line. The third phase involves adjusting the preliminary edge positions to more reasonable positions by employing prior information of the coding rules. Thus, a universal edge mapping model is established to obtain the coding positions of each edge in this phase, followed by a decoding procedure. The Levenberg–Marquardt method is utilized to solve this nonlinear model. The computational complexity and convergence analysis of AEDM are also provided. Several experiments were implemented to evaluate the performance of AEDM algorithm. The results indicate that the efficient AEDM algorithm outperforms state-of-the-art methods and adequately addresses multiple issues, such as out-of-focus blur, nonlinear distortion, noise, nonlinear optical illumination, and situations that involve the combinations of these issues.
A Synthesis of 1,3-Dimethylfuro[3,4-<i>c</i>]quinolin-4-ones (1983)

Synthese one pot de dimethyl-2,5 nitro-2' aryl-4 furoates-3 de methyle a partir d'acetylacetate de methyle et de nitro-2 nitro-2' aryl-1 propenes (A) dans le methanol en presence de piperidine; l'hydrogenation des composes A en presence de palladium conduit aux composes du titre
Pu-erh tea, green tea, and black tea suppresses hyperlipidemia, hyperleptinemia and fatty acid synthase through activating AMPK in rats fed a high-fructose diet (2011)

Although green tea extract has been reported to suppress hyperlipidemia, it is unclear how tea extracts prepared from green, oolong, black and pu-erh teas modulate fatty acid synthase expression in rats fed on a high-fructose diet. In this animal study, we evaluated the hypolipidemic and hypoleptinemia effect of these four different tea leaves fed to male Wistar rats for 12 weeks. The results showed that a fructose-rich diet significantly elevated serum triacylglycerols, cholesterol, insulin, and leptin concentrations, as compared with those in the control group. Interestingly, consuming tea leaves for 12 weeks almost normalized the serum triacylglycerols concentrations. Again, rats fed with fructose/green tea and fructose/pu-erh tea showed the greatest reduction in serum TG, cholesterol, insulin and leptin levels. In contrast, serum cholesterol and insulin concentrations of the fructose/oolong tea-fed rats did not normalize. The relative epididymal adipose tissue weight was lower in all rats supplemented with tea leaves than those fed with fructose alone. There was molecular evidence of improved lipid homeostasis according to fatty acid synthase (FAS) protein expression. Furthermore, supplementation of green, black, and pu-erh tea leaves significantly decreased hepatic FAS mRNA and protein levels, and increased AMPK phosphorylation, compared with those of rats fed with fructose only. These findings suggest that the intake of green, black, and pu-erh tea leaves ameliorated the fructose-induced hyperlipidemia and hyperleptinemia state in part through the suppression of FAS protein levels and increased AMPK phosphorylation.
<title>Focus Error Detection In Optical Data Storage Systems</title> (1980)

One of the most distinctive features of the optical disk mass storage technology which has been under development at Xerox Electro-Optical Systems is the extremely high numerical aperture (NA) of the objective lenses used for writing and playback. A disk system with a 0.90 NA lens has over five times the data capacity of a comparable disk system with a 0.40 NA lens. This increased data capacity comes at the price of a reduced depth of focus and significantly increased sensitivity to aberrations. The subject of this paper is the performance of the "skew beam" and the "Foucault knife-edge" techniques for sensing focus errors. Specific topics include: (1) An analysis for optimizing the sensitivity of the skew beam configuration, (2) An observation of the close similarity between the skew beam and the Foucault knife-edge techniques, and (3) A partial list of sources of aberrations unique to high numerical aperture optics, and their impact upon the performance of the focus error sensing detector.
Coronary lithoplasty: a novel treatment for stent underexpansion (2018)

A 74-year old man with history of hypertension and dyslipidaemia, presented with Class III angina. Coronary angiography showed a right
dominant system with a heavily calcified stenotic lesion in the proximal left anterior descending (LAD) coronary artery with a minimal
lumen diameter of 1.15mm and diameter stenosis of 63% by quantitative coronary angiography. [...]
Viscous Oil Emulsification by Catastrophic Phase Inversion: Influence of Oil Viscosity and Process Conditions (2011)

This study deals with the description of the influence of oil viscosity and process conditions on catastrophic phase inversion, through the analysis of the effects of formulation and process variables on the dispersed phase fraction at which the inversion is triggered. The in situ simultaneous follow-up of viscosity and conductivity measurements allowed, from a process point of view, to emphasize the effect of the aqueous phase addition rate on the catastrophic phase inversion point (PIP) and multiple w/O/W emulsion formation. Thus if the aqueous phase is added by very small fractions, formulation dominates and the inversion phenomenon can be accelerated, as a consequence of multiple emulsion formation, that greatly increases the volume of effective dispersed phase. An increase in oil viscosity greatly increased the tendency of the oily phase to become the dispersed phase and promoted the formation of highly concentrated emulsions (about 80 to 95% in volume) after inversion.
Composite antenna pattern for realistic ray tracing simulations (2004)

The widespread adoption of wireless local area networks (WLAN) and the emerging wireless personal area networks (WPAN) has required a deeper understanding of the indoor propagation channel. As a consequence, ray analysis techniques based on geometrical optics have emerged as the tools of choice for modeling indoor and outdoor environments. In realistic scenarios, antennas will be installed within proximity to wall structures or embedded in complex environments such as vehicle interiors for telematics applications. Hence. we no longer have free space antenna patterns but composite antenna patterns. We consider here the application of the finite-difference time-domain (FDTD) technique for obtaining 3D antenna patterns in complex structures with different material properties. Simulation results are submitted and discussed.
High performance IP multicasting over wireless satellite-Terrestrial networks (1998)

We describe our recent w ork on the design and implementation of high performance Internet services over networks consisting of interconnected high data rate satellites including Direct Broadcast Satellite hosts and terrestrial wireless LANs with various capabilities with rates from 16 kbps to 10Mbps, including LMDS and MMDS systems.The network can use either bi-directional or receive only satellite links for downstream data delivery and wireless and wireline terrestrial or satellite links for the upstream path.A k ey concept in our work is that of a hybrid terminal, which is a PC connected to a satellite antenna including just DBS antennas and to the wireless LAN.The hybrid terminal uses a modem connection for outgoing tra c while receiving incoming information through the VSAT.The hybrid terminal is attached to the Internet through any Internet service provider who supports Serial Line Internet Protocol SLIP.The tra c from the hybrid terminal is transmitted to the hybrid gateway through IP-within-IP encapsulation, to accomplish asymmetric routing.The hybrid gateway is responsible for decapsulation of tra c from hybrid terminals.It is also responsible for formatting data to suite the satellite transmission.The asymmetric nature of tra c in most networks, as evident in the Internet, is shifting current networking technology trends more towards the development of hybrid networks.Multimedia tra c with its inherent variability in Quality of Service QoS requirements further reinforces this trend.Technologies such as DirecPC T M which allow users to send tra c terrestrially and receive tra c through satellite have demonstrated the e ciency of the broadcast nature of satellite communications as a means of delivering high bandwidth tra c to end
Life-Cycle Assessment of Warm-Mix Asphalt: Environmental and Economic Perspectives (2009)

The use of warm-mix asphalt (WMA) has received considerable attention in recent years to reduce energy consumption and air emissions. Despite these promising benefits, the promotion of WMA based on a single factor such as reduced energy consumption or reduced emissions does not provide a complete evaluation of this technology and may omit critical environmental factors that should be considered in the decision-making process. The objective of this paper was to determine the life-cycle assessment of WMA technology as compared to a conventional hot-mix asphalt mixture. To achieve this objective, a life-cycle inventory (LCI) that quantifies the energy, material inputs, and emission during aggregate extraction, asphalt binder production, and hot-mix asphalt production and placement, was developed. Based on this inventory, life-cycle impact assessment of WMA technology was determined. Based on this analysis, it was determined that WMA provides a reduction of 24% on the air pollution impact of HMA and a reduction of 18% on fossil fuel consumption. Overall, the use of WMA is estimated to provide a reduction of 15% on the environment impacts of hot-mix asphalt (HMA). While WMA is expected to improve the hot-mix asphalt production category, it will not have a direct impact on the other three main processes taking place during production of hot-mix asphalt: aggregate production, asphalt binder refinery, and transportation and construction processes. In order to achieve further improvement of the sustainability of HMA production and construction activities, it will be necessary to consider additional technologies such as low-emission and fuel-efficient construction equipments and use of reclaimed asphalt pavement.
The use of microsensors to determine population distributions in UASB aggregates (1995)

Glucose and pH microprofiles in UASB aggregates were interpreted with respect to the population distribution of fermentative and methanogenic bacteria. In order to map the activity distribution of these bacteria, microprofiles were measured with different substrates (glucose, propionate and acetate) and at varying buffer capacities of the medium. The measurements were compared to calculated microprofiles, in which the spatial location of the activities was varied. The results suggested an inhomogenic activity distribution in the aggregates investigated: fermentatives were located dominantly at the outer 200-300 μm whereas methanogens were homogeneously distributed over the aggregate.
Race After Technology (2023)

Interestingly, the MIT data scientists interviewed by anthropologist Kathleen Richardson were conscious of race, class and gender, and none wanted to reproduce these normative stereotypes in the robots they created. Richardson contrasts her findings to that of anthropologist Stefan Helmreich, whose pioneering study of artificial life in the 1990s depicts researchers as “ignorant of normative models of sex, race, gender and class that are refigured in the computer simulations of artificial life.” More importantly, the ideological commitments of dominant groups typically determine what gets awarded credit in the first place, automating social reproduction. This implicates not only race and ethnicity; depending on the fault lines of a given society, merit systems also codify class, caste, sex, gender, religion, and disability oppression.
Adsorption of some technetium-99m radiopharmaceuticals onto disposable plastic syringes. (1998)

The data suggest that the extent of adsorption depends on pharmaceutical excipients in the kits and/or the type of syringe used. When inappropriate syringes are used, the reduction in the administered activity may result in poor-quality images. Therefore, the compatibility between radiopharmaceutical and syringe should be investigated under normal conditions of preparation and use every time a new brand of syringe or a new radiopharmaceutical comes into use in diagnostic nuclear medicine.
Design, synthesis and evaluation of oligomer conjugated MGBpolyamide-nucleoside hybrid as a novel gene expression control compound (2005)

DNA oligomers conjugated pyrrolepolyamide (minor groove binder)-deoxyguanosine hybrid were synthesized as novel gene expression control compounds. From T(m) values and CD spectral analysis, it was found that oligomers conjugated hybrid possess high recognition ability and very high binding ability for the DNA that includes pyrrolepolyamide match site.
Immune proteomics of <i>Staphylococcus aureus</i> (2011)

Immune proteomics is an increasingly powerful tool for the investigation of the adaptive immune response to natural encounters between micro-organisms and their hosts. The versatile species Staphylococcus aureus serves to illustrate how these techniques can be employed to appreciate the complexity and diversity of the host-pathogen interactions in unprecedented detail and completeness. Such knowledge is important for the development of effective vaccines as well as informative diagnostic and novel therapeutic tools. From high-resolution immune proteome studies, general rules underlying the human adaptive immune response to S. aureus colonization and infection are beginning to emerge against a background of extreme diversity: S. aureus carriers develop immune memory for their colonizing strain, but even non-carriers are frequently exposed to S. aureus, resulting in specific antibodies. During bacterial invasion, immune-competent individuals rapidly mount an antibody response to a large panel of S. aureus antigens. However, every patient starts from a personal baseline antibody profile reflecting his or her history of encounters with S. aureus.
Improvement of Two-Stroke Engine Performance with the Yamaha Power Valve System (YPVS) (1981)

<div class="section abstract"><div class="htmlview paragraph">In two-stroke engines, the exhaust port timing has a great effect on engine performance characteristics. If the exhaust port timing can be varied in response to variations in the engine speed, an extensive improvement of performance can be realized.</div><div class="htmlview paragraph">The Yamaha Power Valve System (YPVS) increases engine output with a valve which operates in the exhaust passage; this valve controls exhaust port timing in response to engine speed, despite the extremely high thermal load encountered in the exhaust passage. This literature deals with the construction and operation principles of YPVS and its effect on the increase of engine output. Also discussed is a series of tests and measurements made on the delivery ratio and trapping efficiency in order to elucidate why engine output is increased.</div></div>
The clinical value of gas-liquid chromatography in the detection of intra-amniotic microbial invasion. (1988)

Short-chain organic acids are byproducts of bacterial metabolism, and their detection by gas-liquid chromatography (GLC) in amniotic fluid has been proposed as a rapid, sensitive, and specific method for the diagnosis of infection. This study was conducted to determine whether GLC analysis of amniotic fluid would be helpful in a population of women in whom the Gram stain examination was negative. Amniotic fluid was retrieved by transabdominal amniocentesis from three groups of patients. Group 1 (negative control) contained 14 women with term pregnancies without clinical and microbiologic evidence of infection of the amniotic cavity; group 2 (positive control) included 17 women with a positive Gram stain examination and culture of amniotic fluid; group 3 (study group) comprised 25 women at risk for intra-amniotic infection who had a negative Gram stain of amniotic fluid. None of the patients in group 1 and 16 of 17 patients (94.1%) in group 2 had pathologic short-chain organic acids in the amniotic fluid. Seven of the 25 patients in group 3 had a positive amniotic fluid culture and only two had an abnormal GLC pattern. Of the remaining 18 patients with negative amniotic fluid cultures, eight had abnormal GLC results. In group 3, the sensitivity of GLC was 28.5% and the specificity was 55.5%. Gas-liquid chromatographic analysis of amniotic fluid has limited clinical value in the prediction of amniotic fluid culture when the Gram stain examination is negative.
Politics of the left in Taiwan (1980)

The following interview was conducted in Chinese in the United States during February and March 1980. The interviewee is a Taiwan national whose name and identity have been withheld for protection. “X” has been an understanding & sensitive participant, observer and writer on Taiwan's non-KMT political scene for many years.
Demo Paper: Large Scale Spatial Data Processing With User Defined Filters In BBoxDB (2019)

BBoxDB is a distributed key-bounding-box-value store which is capable of handling large scale n-dimensional data. Unlike existing key-value stores, each value is stored together with a bounding box which describes the location of the value in an n-dimensional space. BBoxDB splits large datasets automatically and spreads them across a cluster of nodes. The software works primarily on the bounding boxes of the stored data; operations like range queries or joins take only the bounding boxes of the data into consideration. In version 0.9.1, we implemented support for user defined filters (UDF) in BBoxDB; UDFs operate on the real values of the data. In this paper, we describe this novel feature for the first time. As an example, a UDF is developed in this paper which is capable of handling GeoJSON encoded data. The UDF consists only of a few lines of code and turns the generic distributed datastore BBoxDB into a specialized system that is capable of processing large scale GeoJSON encoded datasets. Operations like spatial joins or range queries on the real geometries of the data become possible. During our demonstration, we show the implementation of the UDF and perform range queries and spatial joins. The used dataset contains spatial data of the whole world and is obtained from the Open Street Map project. For visualization, the GUI of BBoxDB was extended in a way that spatial queries can easily be executed. Using the GUI, query results can be interactively explored; they are shown as an overlay on a map dynamically fetched from the Open Street Map project.
Drought Stress Classification Using 3D Plant Models (2017)

Quantification of physiological changes in plants can capture different drought mechanisms and assist in selection of tolerant varieties in a high throughput manner. In this context, an accurate 3D model of plant canopy provides a reliable representation for drought stress characterization in contrast to using 2D images. In this paper, we propose a novel end-to-end pipeline including 3D reconstruction, segmentation and feature extraction, leveraging deep neural networks at various stages, for drought stress study. To overcome the high degree of self-similarities and self-occlusions in plant canopy, prior knowledge of leaf shape based on features from deep siamese network are used to construct an accurate 3D model using structure from motion on wheat plants. The drought stress is characterized with a deep network based feature aggregation. We compare the proposed methodology on several descriptors, and show that the network outperforms conventional methods.
Damage to the Esophagus After Atrial Fibrillation Ablation (2010)

Mucosal changes of the esophagus after PVI-like ulcers or erythema could not be demonstrated, yet structural changes of the mediastinum, which were only visible by endosonography, occurred in 27% of patients in the present study. This may indicate a higher than expected periesophageal injury because of PV ablation. Endosonography might prove to be a sensitive and reliable tool in the follow-up after PVI.
Determination of rotational and vibrational temperatures in a discharge with liquid non-metallic electrodes in air at atmospheric pressure (1998)

Rotational and vibrational temperatures are measured by optical emission spectroscopy in a discharge with liquid non-metallic electrodes (DLNME) in air at atmospheric pressure. We used the transition of the second positive system of to determine the two parameters of this discharge. In this paper we describe first the experimental set-up and then the method of determination of rotational and vibrational temperatures by comparison with calculated spectra. We present the results obtained along the discharge's axis.
Propagation mechanisms in microcell and indoor environments (1994)

For the investigation of propagation mechanisms in microcell and indoor environments, theoretical model calculations are compared to wide-band measurements. The theoretical principles of the elementary process of scattering from a 2-D surface, such as a wall, are described. A ray-tracing algorithm based on this is employed to describe propagation in 3-D structures, like rectangular rooms or street canyons. Space-dependent complex impulse responses are calculated. These are compared to the results of high resolution measurements of the space-dependent complex impulse response in the same environments. If conducted in an appropriate manner, the measurements yield very dense information about the propagation in the measured environment. It is demonstrated that the concept of the scattering function is useful for microcell and indoor environments. Comparisons between the theoretical and measured wide-band results show a high degree of agreement.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>