gebhart/patrepeval huggingface dataset:
Media conversions to support mobile users (2002)

The purpose of this paper is to provide an overview of the signal processing techniques that will allow mobile users to enjoy a wide range of multimedia services. In the near future, mobile terminals will be equipped with the capability to decode and playback a variety of audio-visual formats. With the increase in number of formats and the presence of various network, terminal and user constraints, media conversion is expected to play a key role in the delivery of content to mobile users. This paper reviews some of the basic technology required for media conversion and provides some discussion about the types of services that could be supported.
Human Disc Phospholipase A2 is Inflammatory (1992)

Human discs have been demonstrated to contain high levels of phospholipase A2. As the enzyme responsible for the liberation of arachidonic acid from membranes, this enzyme has a theoretical inflammatory potential. Herniated lumbar discs have a higher level of phospholipase A2 than do normal discs. The purpose of this study was to evaluate the inflammatory capability of purified human disc phospholipase A2. Phospholipase A2 extracted and purified from human disc was found to be inflammatory. Its inflammatory capability was directly related to its ability to function enzymatically. When the enzyme was treated with parabromophenacyl bromide (p-BPB) to specifically alkylate the active site histidine and block catalytic activity, the ability of the modified protein to produce edema was markedly reduced. Careful regulation of the activity of this enzyme is important in vivo because its inflammatory potential could result in disc degeneration and nerve injury.
In vivo prediction of vascular susceptibility to vascular susceptibility endothelial growth factor withdrawal: magnetic resonance imaging of C6 rat glioma in nude mice. (1999)

One of the hallmarks of tumor neovasculature is the prevalence of immature vessels manifested by the low degree of recruitment of vascular mural cells such as pericytes and smooth muscle cells. This difference in the architecture of the vascular bed provides an important therapeutic window for inflicting tumor-selective vascular damage. Here we demonstrate the application of gradient echo magnetic resonance imaging (MRI) for noninvasive in vivo mapping of vascular maturation, manifested by the ability of mature vessels to dilate in response to elevated levels of CO2. Histological alpha-actin staining showed a match between dilating vessels detected by MRI and vessels coated with smooth muscle cells. Switchable, vascular endothelial growth factor (VEGF)-overexpressing tumors (C6-pTET-VEGF rat glioma s.c. tumors in nude mice) displayed high vascular function and significant vascular damage upon VEGF withdrawal. However, damage was restricted to nondilating vessels, whereas mature dilating tumor vessels were resistant to VEGF withdrawal. Thus, MRI provides in vivo visualization of vascular maturity and prognosis of vascular obliteration induced by VEGF withdrawal.
The anodic behaviour of aluminium alloys in alkaline solutions (1993)

The electrochemical behaviour of aluminium in alkaline solutions, with small amounts (<0.1 wt%) of indium, magnesium and gallium as alloying constituents, and the identification of the parameters that will most effect an operating A1 / air battery system have been investigated. The alloys investigated were suggested by Comalco Research Laboratories, Melbourne and had the following analysis: Pure Aluminium (better than 99.995%) A1- 0.016%In. A1 - 0.046%Ga. A1- 0.045%In. A1- O.067%Ga. A1- 0.10%In. A1- 0.110%Ga. A1- 0.1%Mg. A1- 0.1 %Mg - 0.1 %In. A1- 0.085%In - 0.09%Ga. It has been found that the peak potential, using the fast cut technique, is independent of indium concentration for indium alloys of less than 0.1 %In, and that the reaction kinetics for the aluminium dissolution at the peak potential change as the aluminate concentration in the alkaline solution is increased. The steady state potential shows a logarithmic relationship to the indium content of the binary alloys and this showed that there is little advantage in using an indium content of greater than 0.04%. The flowcell experiments showed that the indium containing alloys become coated with a black film, and that onset of significant polarization coincided with the disappearance of this film. X-ray analysis has confirmed that both indium and gallium concentrate on the reaction surface during polarization. This work has shown the ternary A1-0.1%Mg - 0.1%In alloy to be the best from those tested. The magnesium in the alloy has been shown to refine the electrode grain structure and to significantly reduce the parasitic corrosion rate. The effects of aluminate accumulation in the electrolyte on polarization were measured and increasing the flowrate and temperature have been shown to increase the maximum current density attainable.
Cardiovascular Biomarker Midregional Proatrial Natriuretic Peptide During and After Preeclamptic Pregnancies (2011)

Preeclampsia is associated with increased risk of cardiovascular disease. Midregional proatrial natriuretic peptide (MR-proANP), a precursor of the atrial natriuretic peptide, is a biomarker for cardiovascular disease. We obtained plasma from 184 pregnant women in gestational weeks 24 to 42 (normotensive pregnancies: n=77, preeclampsia: n=107), from 25 of these women at 5 to 8 years after index pregnancy (normotensive pregnancies: n=11, preeclampsia: n=14), and from 49 normotensive, nonpregnant women and analyzed them by immunoassay for MR-proANP. To investigate potential sources, placental and decidual atrial natriuretic peptide mRNA expression levels were analyzed by quantitative real-time PCR in 21 normotensive and 23 preeclamptic pregnancies, as well as in human heart and kidney samples. For further confirmation, we measured circulating MR-proANP and performed expression studies in a transgenic rat model for preeclampsia. MR-proANP was significantly elevated in maternal plasma in preeclampsia compared with normotensive pregnancies (135 versus 56 pmol/L; P<0.001). However, 5 to 8 years after pregnancy, there was no difference (formerly preeclamptic women versus formerly normotensive in pregnancy: 53 versus 49 pmol/L; P=0.5). Our preeclamptic rat model confirmed the acute MR-proANP differences between preeclamptic and normotensive pregnancies (10.9±1.9 versus 4.3±0.3 pmol/L; P=0.05). Atrial natriuretic peptide expression was high in the heart but negligible in the uteroplacental unit in both normotensive humans and rats, whereas expression in maternal and fetal hearts in the preeclamptic rats was significantly increased, compared with controls. MR-proANP is a serviceable biomarker in preeclampsia, both in humans and a rat model, probably reflecting cardiovascular hemodynamic stress.
Bacterial and Polymorphonuclear Leukocyte Contribution to Middle Ear Inflammation in Chronic Otitis Media with Effusion (1985)

Bacteria can be cultured from approximately one third of chronic middle ear effusions, yet the contribution of these bacteria to the pathogenesis of chronic otitis media with effusion (OME) is not clear due to the absence of signs and symptoms of acute infection in most children with this disease. To explore the role of bacteria in chronic OME, lysozyme, lactoferrin, serum complement factors C3 and C5a, and polymorphonuclear leukocyte (PMNL) chemotaxin content was measured in 21 chronic middle ear effusion samples. Concentrations of lysozyme, lactoferrin, and chemotaxin were significantly higher in culture-positive than in sterile effusions. Lysozyme appeared to be contributed by both PMNL and non-PMNL sources in the middle ear space. These non-PMNL sources, presumably middle ear epithelial cells, accounted for 50% to 80% of the lysozyme variation in middle ear effusion. Although C3 and C5a were present in effusion, chemotaxin content correlated poorly with the C3 and C5a content, suggesting that chemotaxins were derived from bacterial peptides rather than from complement activation products. These results suggest that bacteria contribute to chronic middle ear inflammation with effusion. The eradication of bacteria from chronic middle ear effusion might disrupt the host responses which maintain chronic OME.
A Software-Based Network Infrastructure for Mobile Ad Hoc Data Networking in Support of Small Tactical Units Using the SINCGARS Radio (2006)

Currently, there is no infrastructure in place to provide data networking to ground-based tactical units below the battalion level. Legacy, voice-centric radios, organic to these units, possesses no inherent packet switched networking capability. The infrastructure for such a network is presented in this thesis. Specifically, with the SINCGARS providing the Physical Layer, a software-implemented Data Link Layer is presented. Both an Aloha-like and a CSMA protocol are implemented for media access control. Additionally, a novel routing algorithm, Expected Relative Positioning with Congestion Avoidance (ERP/CA), is presented as the Network Layer protocol. This protocol is optimized for military application, using policies regarding movement and positioning within formations to inform its routing selections. Finally, a prototype application is presented to demonstrate the use of the proposed small tactical unit, mobile ad hoc network infrastructure. The application is used in the functional testing of protocols. Results of the functional testing are presented.
Diagnostic and Therapeutic Potentials of Platelet Glycoprotein VI (2010)

Platelets respond immediately to vascular injury by adhesion, aggregation, and thrombus formation. Disruption of the endothelial cell layer exposes extracellular matrix to the bloodstream. Collagen binding to platelet glycoprotein VI (GPVI) mediates the initial adhesion of the rolling platelet to the vascular wound. Signaling by GPVI leads to the onset of the platelet activation cascade that is finally crowned by a firm and shear-resistant integrin-based adhesive clot. Blockade of collagen binding to GPVI would prevent initial adhesion and further activation of the platelet and would have an enormous impact in antithrombotic therapy. Besides the therapeutical implication, radiolabeled GPVI gives us a valuable diagnostic means that may be used clinically for plaque imaging in the near future.
Effect of pressure on the magnetostructural transition in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mtext>SrFe</mml:mtext></mml:mrow><mml:mn>2</mml:mn></mml:msub><mml:msub><mml:mrow><mml:mtext>As</mml:mtext></mml:mrow><mml:mn>2</mml:mn></mml:msub></mml:mrow></mml:math> (2008)

We present a systematic pressure study of poly- and single-crystalline ${\text{SrFe}}_{2}{\text{As}}_{2}$ by electrical-resistivity and x-ray-diffraction measurements. ${\text{SrFe}}_{2}{\text{As}}_{2}$ exhibits a structural phase transition from a tetragonal to an orthorhombic phase at ${T}_{0}=205\text{ }\text{K}$. The structural phase transition is intimately linked to a spin-density-wave transition taking place at the same temperature. Our pressure experiments show that ${T}_{0}$ shifts to lower temperatures with increasing pressure. We can estimate a critical pressure of 4--5 GPa for the suppression of ${T}_{0}$ to zero temperature. At pressures above 2.5 GPa the resistivity decreases significantly below ${T}_{x}\ensuremath{\approx}40\text{ }\text{K}$, hinting at the emergence of superconductivity, but no zero-resistance state is observed up to 3 GPa.
The electric field induced in the human body when exposed to electromagnetic fields at 1-30 MHz on shipboard (1999)

The electric field induced in the body of a man standing on the metal deck of a ship near a vertical antenna is determined analytically. Typical antennas for radio communication in the 1-30 MHz band are described and their near fields are calculated. The current induced in the man is determined by solving the relevant integral equation. Explicit formulas are obtained for the total axial current and the associated current densities and electric fields.
Samarium-promoted cyclopropanation of allylic alcohols (1989)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSamarium-promoted cyclopropanation of allylic alcoholsGary A. Molander and Lori S. HarringCite this: J. Org. Chem. 1989, 54, 15, 3525–3532Publication Date (Print):July 1, 1989Publication History Published online1 May 2002Published inissue 1 July 1989https://pubs.acs.org/doi/10.1021/jo00276a008https://doi.org/10.1021/jo00276a008research-articleACS PublicationsRequest reuse permissionsArticle Views1129Altmetric-Citations129LEARN 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-AlertscloseSupporting Info (1)»Supporting Information Supporting Information Get e-Alerts
A review of current developments in process and quality control for injection molding (2005)

Abstract Injection molding is one of the most versatile and important manufacturing processes capable of mass‐producing complicated plastic parts in net shape with excellent dimensional tolerance. Injection molding process and quality control has been an active research area for many years, as part quality and yield requirements become more stringent. This paper reviews the state‐of‐the‐art research and development in injection molding control. It organizes prior studies into four categories, namely, process setup, machine control, process control, and quality control, and presents the distinction and connection of these different levels of control. This paper further reviews and compares the typical variables, models, and control methods that have been proposed and employed for those control tasks. Strictly speaking, real online quality control without human intervention has yet to be realized, primarily due to the lack of transducers for online, real time quality response measurement, and a robust model that correlates the control variables with quantitative quality measurements. Based on the research progress to date, this paper suggests that the different levels of control tasks have to be integrated into a multilevel quality control system, and that the quality sensor and the process and quality model are the two most important areas for further advancement in injection molding control. © 2005 Wiley Periodicals, Inc. Adv Polym Techn 24: 165–182, 2005; Published online in Wiley InterScience ( www.interscience.wiley.com ). DOI 10.1002/adv.20046
A Combined Solution for Conjunctive Keyword Search, Phrase Search and Auditing for Encrypted Cloud Storage (2016)

Cloud computing has garnered much interest in recent years for its many advantages, but also for its security, privacy concerns. The storage, access of confidential documents has been identified as one of the central problems in the area. Many researchers investigated solutions to search over encrypted documents stored on remote cloud servers. Others proposed schemes for ensuring data integrity or reduce overhead through deduplication while keeping the data encrypted, inaccessible by the cloud operator. While many schemes have been proposed to perform the individual functionalities, less attention has been made to more complete solutions featuring multiple desired functionalities. In this paper, we present a solution that incorporates search, phrase search, auditing where resources are reused for enabling each functionality, achieving an overall smaller storage cost, complexity than implementing each of the functionalities separately. The solution performs search over encrypted documents as efficiently as the leading phrase search scheme in the literature while also enabling unlimited number of audit queries.
Leveraging progressive programmability of SLC flash pages to realize zero-overhead delta compression for metadata storage (2015)

This paper presents a method to implement delta compression for metadata storage in flash memory. With the abundant temporal redundancy in metadata, it is very intuitive to expect flash-based metadata storage can significantly benefit from delta compression. However, straightforward realization of delta compression demands the storage of the original data and the deltas among different versions in different flash memory physical pages, which leads to significant overhead in terms of read/write latency and data management complexity. Through experiments with 20nm NAND flash memory chips, we observed that, when operating in SLC mode, flash memory page can be programmed in a progressive manner, i.e., different portion of the same SLC flash memory page can be programmed at different time. This motivates us to propose a simple design approach that can realize delta compression for metadata storage without latency and data management complexity overheads. The key idea is to allocate SLC-mode flash memory pages for metadata, and store the original data and all the subsequent deltas in the same physical page through progressive programming. Experimental results show that this approach can significantly reduce the metadata write traffic without any latency overhead.
Precision Synthesis of a Long-Chain Silane Coupling Agent Using Micro Flow Reactors and Its Application in Dentistry (2016)

In dentistry, a wide range of materials is available for restorative treatment; a typical product of such restorative materials mainly consists of radically polymerizable monomer(s) and inorganic filler(s) (for added physical strength), as well as a surface modifier (e.g. silane coupling agent) for improved affinity between monomer and filler. It is favorable to use an optimal surface modifier depending on the respective restorative materials. However, commercially available surface modifiers, which are synthesized by the ton, are not always suited for what is required for properties of the many different dental restorative materials. As a potential solution to such a problem, we focused on the latest technology, “micro flow reactors” that enabled an on-demand low-volume synthesis of many types of surface modifiers. Using micro reaction fields of such flow reactors, we synthesized a novel long-chain silane coupling agent. Compared to the control system synthesized using a conventional reaction flask, the novel system enabled significant reduction in reaction time without inducing any major side reactions. A dental composite resin that was treated with the novel coupling agent exhibited higher toughness, suggesting that such a silane coupling agent was an effective surface modifier.
A 6-DOF Rehabilitation Support System for Upper Limbs including Wrists "Robotherapist" with Physical Therapy (2007)

Rehabilitation for upper limbs is important for aged people, stroked patients and so on. In recent years, the needs for rehabilitation support systems are increasing, which use robot technology and virtual reality technology. Applying these technologies make efficient rehabilitation possible. But there is no rehabilitation support system that has 6-DOF for upper limbs including wrists besides application software of physical therapy. We developed a 6-DOF-rehabilitation support system for upper limbs including wrists, named "Robotherapist". Furthermore we develop new application software for clinical training and evaluation on the basis of physical therapy. Therefore Robotherapist make more effective rehabilitation possible. This paper presents the mechanism of Robotherapist and its software on physical therapy.
Simple and high-performance drive of switched reluctance motors for low-cost applications (2002)

The dynamic characteristics of a switched reluctance motor (SRM) are highly nonlinear and it is very difficult to model SRM accurately and to control SRM with high performance. In this paper, we propose a simple control structure and algorithm for SRM. The torque ripple minimization is studied by using an iterative learning algorithm which can automatically find torque-angle-current characteristics of SRM, and a simple angle compensator is proposed in order to compensate phase delay in current control. Based on the obtained knowledge on torque-angle current characteristics, velocity controller and current controller are designed and implemented by a microcomputer based digital control and analog circuits. The high performance and practical feasibility on low-cost commercial applications are confirmed through experimental results.
BUILDING FACADE DOCUMENTATION USING LASER SCANNING AND PHOTOGRAMMETRY AND DATA IMPLEMENTATION INTO BIM (2016)

Abstract. A project started last year called MORE-CONNECT, which focuses on the renovation of buildings (especially building facades) using prefabricated elements. The aim of this project is to create a competitive solution consisting of a technology and processes which enable fast, cost-effective renovation with minimal difficulties to inhabitants. Significant cost savings in renovation costs lies in the usage of prefabricated elements and the reduction of construction works on site. The precision of the prefabricated element depends on the precision of the construction, project and building documentation. This article offers an overview of the possible methods for building documentation and spatial data transfer into BIM (Building Information Modelling) software. The description of methods focuses on laser scanning and photogrammetry (including RPAS based), its advantages, disadvantages and limitations according to the documented building, level of renovation, situation on site etc. The next part involves spatial data transfer into BIM software. A proposed solution is tested in a case study.
Total synthesis of (±)-androst-4-en-3-one-17-carboxylic acid (1984)

J. R. Hwu and E. J. Leopold, J. Chem. Soc., Chem. Commun., 1984, 721 DOI: 10.1039/C39840000721
Energy efficient information collection in wireless sensor networks using adaptive compressive sensing (2009)

We consider the problem of using wireless sensor networks (WSNs) to measure the temporal-spatial field of some scalar physical quantities. Our goal is to obtain a sufficiently accurate approximation of the temporal-spatial field with as little energy as possible. We propose an adaptive algorithm, based on the recently developed theory of adaptive compressive sensing, to collect information from WSNs in an energy efficient manner. The key idea of the algorithm is to perform ¿projections¿ iteratively to maximise the amount of information gain per energy expenditure. We prove that this maximisation problem is NP-hard and propose a number of heuristics to solve this problem. We evaluate the performance of our proposed algorithms using data from both simulation and an outdoor WSN testbed. The results show that our proposed algorithms are able to give a more accurate approximation of the temporal-spatial field for a given energy expenditure.
Erratum: Atomic Three-Body Loss as a Dynamical Three-Body Interaction [Phys. Rev. Lett.<b>102</b>, 040402 (2009)] (2009)

Received 15 April 2009DOI:https://doi.org/10.1103/PhysRevLett.102.179902©2009 American Physical Society