gebhart/patrepeval huggingface dataset:
Leakage Current Mitigation in Current-Source Inverter based Transformerless Photovoltaic System using Active Zero-State Space Vector Modulation (2019)

Suitable space vector modulation (SVM) schemes for current-source inverters (CSIs) with leakage current mitigation capability has not been well explored yet. In this study, a novel SVM scheme is proposed, with which the leakage current in a CSI-based transformerless photovoltaic system can be significantly suppressed. Finally, some simulations are carried out on a three-phase current-source converter (CSC), the results verify the effectiveness of the proposed SVM scheme.
Generation of nonlinear polarization to emit terahertz waves in above gap states in GaSb/AlGaSb multiple quantum wells (2023)

Abstract In this study, we report the generation of frequency-tunable even-order nonlinear polarization in the above gap states in strained multiple quantum wells. Using the strain field, the even-order polarization to emit terahertz waves is generated in a zincblende crystal. Our results can make the material and laser choice ranges wide because the exciton resonant excitation is unnecessary.
Evolution of magnetic vortex formation in micron-sized disks (2019)

Automotive magnetic field sensing applications require a robust sensing concept. One way to meet the corresponding sensor requirements, such as a negligible hysteresis and a large linear working range, is to employ the vortex state. Consequently, the nucleation field Hn of the vortex state becomes a highly important sensor parameter. In this study, we examine different factors that affect Hn. Tunneling magnetoresistance spin-valve sensors with disk-shaped CoFeB free layers, which energetically favor the nucleation of the vortex state, are electrically characterized and compared with micromagnetic simulations. Phase transitions into intermediate magnetic states, such as various buckling states, the S-state, or the double vortex state, are extracted from hysteresis loops. The resulting phase diagrams show that the formation of the S-state only occurs below a thickness of approximately 25 nm, whereas the double vortex state nucleates frequently only above approximately 35 nm. Both the S- and double vortex states lower the nucleation field of the single vortex state compared to higher order buckling states. Understanding both the origin and the influence of the intermediate phases opens the way to designing a robust and reliable vortex sensor concept.
Natural diversity of honey bee ( Apis mellifera ) gut bacteriome in various climatic and seasonal states (2021)

ABSTRACT As pollinators and producers of numerous human consumed products, honey bees have great ecological, economic and health importance. The composition of their bacteriota, for which the available knowledge is limited, is essential for their body’s functioning. Based on our survey, we performed a metagenomic analysis of samples collected by repeated sampling. We used geolocations that represent the climatic types of the study area over two nutritionally extreme periods (March and May) of the collection season. In bacteriome composition, significant (p=0.002) difference was found between the samples from March and May. The samples’ bacteriome from March showed a significant (p=0.02) composition difference between cooler and the warmer regions. However, there were no significant bacteriome composition differences among the climatic classes of samples taken in May. Based on our results, one may conclude that the composition of healthy core bacteriome in honey bees varies depending on the climatic and seasonal conditions. This is likely due to climatic factors and vegetation states determining the availability and nutrient content of flowering plants. The results of our study prove that in order to gain a thorough understanding of a microbiome’s natural diversity, we need to obtain the necessary information from extreme ranges within the host’s health state.
Converted-wave (P-S) prestack migration and velocity analysis using equivalent offset migration (1996)

A new approach for converted-wave prestack migration and velocity analysis is based on equivalent offset prestack migration using common scatter point (CSP) gathers (Bancroft et al. 1995, Wang et al. 1995). Each prestack migrated trace, gathers all input traces within the prestack migration aperture, and sorts them into offset bins based on an equivalent offset. The equivalent offset may be time varying, and is based on the offset of the scatter point from both the source and receiver.
Uniqueness of the Mucosal Immune System for the Development of Prospective Mucosal Vaccine (2007)

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Recent Advances of FACTS Devices for Power Quality Compensation in Railway Traction Power Supply (2018)

In recent years, there is worldwide development in railway transportation and it has gained significant importance. Different flexible alternating current transmission system (FACTS) devices, including static var compensator, static synchronous compensator, and railway power quality conditioner, have been proposed to improve system stability and power quality in railway traction power. With rapid railway growth, further research has been made to enhance the performance of FACTS devices in railway. This paper provides an overview of advances in FACTS devices for applications in railway traction power supply systems. It identifies different FACTS device study for railway traction power supply and make comparisons among them.
[Tetany, spasmophilia, hyperventilation syndrome: theoretical and therapeutic synthesis]. (1998)

The hyperventilation syndrome (HVS), characterised by multiple somatic symptoms induced by inappropriate hyperventilation, constitutes the physiopathological manifestation of a common disorder in general medicine. As a synonym of spasmophilia or tetany, it has the advantage of offering diagnostic criteria, even though the latter are still vaguely defined. But its definition allows for objective measurements: indeed, a decrease in PCO2 during a hyperventilation provoking test and an abnormally low PCO2 rate at rest can be easily quantified. Moreover, the HVS concept offers a treatment which is both structured (respiratory reeducation, psychotherapy and pharmacology) and efficient. Yet, a number of scientific uncertainties still exist. There is no general agreement regarding the criteria which should be taken into account in a hyperventilation provoking test in order to diagnose an hyperventilation syndrome; the specificity of such a test is weak and a placebo can induce as many symptoms as can a HVS. Respiratory reeducation has good results but does not necessarily have an effect on PCO2. Some therapists see in it no more than a mechanism of relaxation and a rational explanation of frightening symptoms. This has led some authors to reject the term "hyperventilation syndrome" and to prefer the expression "chronic hyperventilation of unknown origin".
Ceftaroline-Resistant, Daptomycin-Tolerant, and Heterogeneous Vancomycin-Intermediate Methicillin-Resistant Staphylococcus aureus Causing Infective Endocarditis (2017)

We report a case of infective endocarditis (IE) caused by ceftaroline-resistant, daptomycin-tolerant, and heterogeneous vancomycin-intermediate methicillin-resistant <i>S. aureus</i> (MRSA). Resistance to ceftaroline emerged in the absence of drug exposure, and the E447K substitution in the active site of PBP2a previously associated with ceftaroline resistance was identified. Additionally, we present evidence of patient-to-patient transmission of the strain within the same unit. This case illustrates the difficulties in treating MRSA IE in the setting of a multidrug-resistant phenotype.
A novel autosomal recessive "Huntington's disease-like" neurodegenerative disorder in a Saudi family. (1999)

Full text is available as a scanned copy of the original print version.
A Participatory Approach to Minimizing Food Waste in the Food Industry—A Manual for Managers (2017)

Based on their experiences gained in 15 companies in the catering sector and the bakery industry, the authors present a participatory concept to reduce food waste in the food industry. This five-phase concept, adapted to the PDCA (Plan–Do–Check–Act) cycle applied in the Total Quality Management, involves a participatory approach where employees are integrated into the process of developing and implementing measures to counteract food waste. The authors describe how the participatory approach can be used to raise awareness of the topic of food waste to improve employee commitment and responsibility. As a result, the authors further offer a Manual for Managers wishing to reduce food waste in their respective organizations. This manual includes information on the methodologies applied in each step of the improvement cycle. It also describes why the steps are necessary, and how results can be documented. The participatory concept and the Manual for Managers contribute to reducing food waste and to enhancing resource efficiency in the food industry.
Towards a Hybrid Real/Virtual Simulation of Autonomous Vehicles for Critical Scenarios (2014)

Abstract—Developing control and perception algorithms for au-tonomous vehicle is a time-consuming activity if one performs it directly on vehicles hardware level. Moreover, some test cases are hard to reproduce. For this reason, many laboratories and companies are generally using simulation tools. The goal of these tools is to benefit from a testing environment as close as possible to reality and able to reproduce specific testing cases. The main problem with standard simulation tools is that they may not accurately represent real conditions. In order to increase the quality of the simulations, hardware is generally introduced in the loop. The goal of this paper is to present a ”work-in-progress” adaptation of IRTES/SeT-Lab simulation tool named VIVUS so as to be able to introduce hybrid simulation which consists in both introducing hardware in the simulation loop and/or software simulation in the hardware experimental loop. Keywords–hybrid simulation; autonomous vehicle algorithms; sensors simulation; augmented reality I.
Confluentimicrobium naphthalenivorans sp. nov., a naphthalene-degrading bacterium isolated from sea-tidal-flat sediment, and emended description of the genus Confluentimicrobium Park et al. 2015 (2015)

A Gram-staining-negative, aerobic and moderately halophilic bacterium, designated strain NS6T, was isolated from sea-tidal-flat sediment of the South Sea in Korea. Cells were motile rods with a single flagellum showing positive catalase and oxidase activities. Strain NS6T grew at 15-40 °C (optimum, 30 °C), at pH 6.0-9.0 (optimum, pH 7.0-7.5) and in the presence of 1-5 % (w/v) NaCl (optimum, 2 %). Ubiquinone-10 was identified as the only isoprenoid quinone and summed feature 8 (comprising C18 : 1ω7c/ω6c), C19 : 0 cyclo ω8c, C16 : 0 and C10 : 0 3-OH were the major fatty acids. Strain NS6T contained phosphatidylglycerol, sulfoquinovosyldiacylglycerol, an unidentified amino lipid and an unidentified lipid as the major polar lipids. An unidentified phospholipid and three unidentified lipids were also detected as the minor polar lipids. The G+C content of the genomic DNA was 64.5 mol%. Strain NS6T was most closely related to Confluentimicrobium lipolyticum SSK1-4T with a 96.8 % 16S rRNA gene sequence similarity, and the phylogenetic analysis based on 16S rRNA gene sequences showed that strain NS6T formed a tight phylogenetic lineage with C. lipolyticum SSK1-4T. The physiological, chemotaxonomic and phylogenetic properties suggest that strain NS6T represents a novel species of the genus Confluentimicrobium, for which the name Confluentimicrobium naphthalenivorans sp. nov. is proposed. The type strain is NS6T ( = KCTC 18418T = JCM 30828T). An emended description of the genus Confluentimicrobium is also proposed.
Copper Staining/Labeling and Scanning Electrochemical Microscopy Readout of Proteins on Poly(vinylidene difluoride) Membranes (2005)

Scanning Electrochemical Microscopy (SECM) is used in combination with copper labeling to visualize roteins on surfaces. Proteins are adsorbed on a poly(vinylidene difluoride) (PVDF) membrane and stained using a standard protocol involving copper salts. The latter are then reduced to copper metal and further detected by SECM with ferrocene methanol as a redox mediator in aqueous solution. During the SECM scan, the potential is held at a value at which the oxidation of the redox mediator occurs and a positive feedback current is detected when scanning over copper clusters. A negative feedback is observed elsewhere.
Resolution of Isoforms of Natural and Recombinant Fibrinolytic Snake Venom Enzyme Using High Performance Capillary Electrophoresis (1993)

Abstract Prior studies have indicated that highly purified samples of natural fibrolase. a fibrinolytic metalloproteinase from southern copperhead snake venom, contains two isoforms. The isoelectric points of these isoforms differ by 0.01 to 0.03 pH units. In this study we show that these isoforms can be resolved by capillary one electrophoresis (CZE) using non-treated capillaries. CZE analyses can be performed on as little as 5ng of protein. Needle-like crystals of natural fibrolase were harvested and their composition analyzed by CZE which revealed the same ratio of isoforms in the crystals as was found in the sample of natural enzyme. Recombinant fibrolase was shown to contain at least two isoforms which could be resolved by cation-exchange HPLC. Analysis by CZE revealed that the early eluting fraction from cation-exchange HPLC contained only one isoform and this isoform corresponded to one of the isoforms of natural fibrolase. The late eluting fraction contained two components when analyzed by CZE. CZE has been shown to be a powerful tool for the analysis of protein isoforms and is useful in assessing the interactions between proteins and metal ions. CZE and enzymatic activity measurements were used to assess the effects of metal replacement on fibrolase following EDTA titration. To stabilize the enzyme, 4M urea was added to the buffers used. This minimized intermoleeular interactions which appeared to occur after removal of zinc. It was shown that a 30 minute incubation in 10m.M EDTA completely removed zinc from the enzyme.
Phased Array Ultrasonic Testing of Stainless Steel Pipe Welds (2023)

Weld inspection of stainless steel pipes and pressure vessels is one of the most challenging and difficult inspections for ultrasonic testing. This is due to variations in grain structure and associated anisotropy. Anisotropy causes grain scattering and adversely affects propagation of sound waves. The effect is more telling for shear waves, which, in many cases, have almost no ability to penetrate the weld volume. Longitudinal waves are affected to a lesser degree by anisotropy and can be applied for such tests. Angle beam or refracted longitudinal waves are, therefore, the accepted method for stainless steel weld inspections.
Thioredoxin: a photosynthetic regulatory protein finds application in food improvement (2001)

Abstract Experiments initiated in the early 1960s on fermentative bacteria led to the discovery of ferredoxin‐dependent α‐ketocarboxylation reactions that were later found to be key to a new cycle for the assimilation of carbon dioxide in photosynthetic bacteria (the reductive carboxylic acid cycle). The latter finding set the stage for the discovery of a regulatory system, the ferredoxin/thioredoxin system, functional in photosynthesis in chloroplasts (and oxygen‐evolving photosynthetic prokaryotes). The chloroplast research, in turn, led to the finding of a system regulating seed germination. Each of these regulatory systems depends on thioredoxin, a ubiquitous 12 kDa protein with a catalytically active disulphide group that reduces specific disulphide sites of target enzymes or proteins. The seed work has begun to open doors to new technologies, also based on thioredoxin, that have broad application, including use in the improvement of major foods. This paper traces the history of this research and shows the current status of its application to food products. © 2001 Society of Chemical Industry
Monitoring activities from multiple video streams: establishing a common coordinate frame (2000)

Monitoring of large sites requires coordination between multiple cameras, which in turn requires methods for relating events between distributed cameras. This paper tackles the problem of automatic external calibration of multiple cameras in an extended scene, that is, full recovery of their 3D relative positions and orientations. Because the cameras are placed far apart, brightness or proximity constraints cannot be used to match static features, so we instead apply planar geometric constraints to moving objects tracked throughout the scene. By robustly matching and fitting tracked objects to a planar model, we align the scene's ground plane across multiple views and decompose the planar alignment matrix to recover the 3D relative camera and ground plane positions. We demonstrate this technique in both a controlled lab setting where we test the effects of errors in the intrinsic camera parameters, and in an uncontrolled, outdoor setting. In the latter, we do not assume synchronized cameras and we show that enforcing geometric constraints enables us to align the tracking data in time. In spite of noise in the intrinsic camera parameters and in the image data, the system successfully transforms multiple views of the scene's ground plane to an overhead view and recovers the relative 3D camera and ground plane positions.
Defining the cellular precursors to human breast cancer (2020)

Human breast cancers are broadly classified based on their gene-expression profiles into luminal- and basal-type tumors. These two major tumor subtypes express markers corresponding to the major differentiation states of epithelial cells in the breast: luminal (EpCAM+) and basal/myoepithelial (CD10+). However, there are also rare types of breast cancers, such as metaplastic carcinomas, where tumor cells exhibit features of alternate cell types that no longer resemble breast epithelium. Until now, it has been difficult to identify the cell type(s) in the human breast that gives rise to these various forms of breast cancer. Here we report that transformation of EpCAM+ epithelial cells results in the formation of common forms of human breast cancer, including estrogen receptor-positive and estrogen receptor-negative tumors with luminal and basal-like characteristics, respectively, whereas transformation of CD10+ cells results in the development of rare metaplastic tumors reminiscent of the claudin-low subtype. We also demonstrate the existence of CD10+ breast cells with metaplastic traits that can give rise to skin and epidermal tissues. Furthermore, we show that the development of metaplastic breast cancer is attributable, in part, to the transformation of these metaplastic breast epithelial cells. These findings identify normal cellular precursors to human breast cancers and reveal the existence of a population of cells with epidermal progenitor activity within adult human breast tissues.
Unstructured Synthetic Aperture Photograph Based Occluded Object Imaging (2013)

Recently the camera array synthetic aperture imaging has been proved to be a powerful technology for occluded object imaging. However, synthetic aperture imaging with a camera mounted on a moving platform is still a significant challenging task for many computer vision applications. This paper presents a novel unstructured synthetic aperture imaging approach to solve the above problem. The main characteristics of our approach include: (1) To the best of our knowledge, our proposed method is the first one for synthetic aperture imaging through occlusion on a moving platform. (2) In contrast to "averaging data", we creatively use the clustering method to estimate the pixel color with high visible probability in the virtual focal plane. A new moving synthetic aperture imaging system has been built to capture unstructured light field in complex outdoor scene, and experimental results demonstrate that our approach successfully generates clear image of hidden object even under severe occlusion, which outperform the traditional synthetic aperture imaging method.
VLSI Universal Noiseless Coder (1989)

Proposed universal noiseless coder (UNC) compresses stream of data signals for efficient transmission in channel of limited bandwidth. Noiseless in sense original data completely recoverable from output code. System built as very-large-scale integrated (VLSI) circuit, compressing data in real time at input rates as high as 24 Mb/s, and possibly faster, depending on specific design. Approach yields small, lightweight system operating reliably and consuming little power. Constructed as single, compact, low-power VLSI circuit chip. Design of VLSI circuit chip made specific to code algorithms. Entire UNC fabricated in single chip, worst-case power dissipation less than 1 W.
Molecular Engineering of High Efficiency and Long Lifetime Blue Thermally Activated Delayed Fluorescent Emitters for Vacuum and Solution Processed Organic Light‐Emitting Diodes (2016)

Doubled lifetime and high efficiency close to 20% are achieved in the blue thermally activated delayed fluorescent for vacuum and solution processed organic light-emitting diodes using a 5CzCN blue delayed fluorescent emitter. As a service to our authors and readers, this journal provides supporting information supplied by the authors. Such materials are peer reviewed and may be re-organized for online delivery, but are not copy-edited or typeset. Technical support issues arising from supporting information (other than missing files) should be addressed to the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.