gebhart/patrepeval huggingface dataset:
ATM virtual private networks: alternatives and performance comparisons (2002)

The objective of ATM virtual private networks (AVPN) is to offer to a multi-site customer a transport service, based on the ATM backbone, which allows an efficient and flexible use of the provisioned resources and can adjust to changing traffic pattern scenarios. This objective can be reached by exploiting the virtual levels typical of the ATM (VP/VC), still guaranteeing the GOS through proper traffic control functionalities.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>
The Influence of Structural Flexibilities on the Straight-running Stability of Motorcycles (1980)

SUMMARY A new tyre model for studies of motorcycle lateral dynamics, and three new motorcycle models, each incorporating a different form of structural compliance, are developed. The tyre model is based on “taut string” ideas, and includes consideration of tread width and longitudinal tread rubber distortion and tread mass effects, and normal load variation. Parameter values appropriate to a typical motorcycle tyre are employed. The motorcycle models are for small lateral perturbations from straight running at constant speed, and include (a) lateral compliance of the front wheel in the front forks, (b) torsional compliance of the front forks, and (c) torsional compliance in the rear frame at the steering head about an axis perpendicular to the steering axis. Results in the form of eigenvalues, indicating modal damping properties and natural frequencies are presented for each model. The properties of four large production machines for a range of forward speeds, and the practicable range of stiffnesses are calculated, and the implications are discussed. It is concluded that typical levels of structural compliance in models (a) and (c) contribute significantly to the steering behaviour properties of large motorcycles, and their observed behaviour can be understood better in terms of the new results than of those existing previously. Some conclusions relating to optimal structural stiffness properties are also drawn.
CONVERSION OF 4-ANDROSTENEDIOL AND 5-ANDROSTENEDIOL TO TESTOSTERONE, AND CONVERSION OF DEHYDROEPIANDROSTERONE TO 4-ANDROSTENEDIOL BY RAT TESTIS &lt;I&gt;IN VITRO&lt;/I&gt; (1966)

The whole testis tissue preparation of rat or man was incubated with androst-4-ene-3β, 17β-diol (4ADL)(20 or 40μg in one flask containning 1 or 2 testes) for 2 hrs.in Krebs-Ringer bicarbonate buffer, pH 7.4, in 95% 02-5% CO2 gas phase. A major product was proved as testosterone by means of paper and gas chromatographic analyses and by the derivative formation. Human chorionic gonadotropin (50 or 100 U in 1 flask) was shown to have a minor influence on the conversion of 4ADL to testosterone by rat testis in vitro.Androst-5-ene-3β, 17β-diol (5ADL) was also converted to testosterone in the same rate as observed for 4ADL. Conversion of these 2 androstenedioles to androst-4-ene-3, 17-dione (4ADN) was observed to very minor extent compared to the conversion of dehydroepiandrosterone (DHEA) to 4ADN.4-C14-DHEA was incubated with rat testis tissue preparation for 2 hrs. and 8 radioactive compounds converted from DHEA were separated on paper by extensive chromatography. Among these compounds, testosterone and 4ADN were identified by recrystallization with carrier steroid to constant specific activity. A compound behaving very similarly to the reference 4ADL on papers was separated. Oxidation of this compound with chromium trioxide yielded 2 products which showed the same mobilities as 4ADN and testosterone. An aliquot of the compound was added with carrier 4ADL and recrystallization showed the nearly constant specific activity. Testosterone zone derived from the compound by oxidation with chromium trioxide was added with carrier testosterone for recrystallization and the constant specific activity was demonstrated.
High-temperature fuel cells (2000)

This paper reports that the high-temperature fuel cell promises high energy conversion efficiency without the need for external fuel processing. The solid oxide fuel cell (SOFC) is an all-solid-state fuel cell consisting of two porous ceramic electrodes separated by a dense oxide ion-conducting ceramic electrolyte. In the SOFC, fuel (hydrogen or carbon monoxide) and oxidant (oxygen) produce a dc current by combining electrochemically across the solid oxide electrolyte. Oxygen fed to the cathode accepts electrons from the external circuit to form oxide ions. The oxide ions are conducted through the electrolyte to the anode. At the anode, oxide ions combine with hydrogen (or CO) in the fuel to form water (or CO{sub 2}), liberating electrons. Electrons flow from the anode through the external circuit to the cathode.
Medical Section pf the American Lung Association: Guidelines for the Initial Management of Adults with Community-acquired Pneumonia: Diagnosis, Assessment of Severity, and Initial Antimicrobial Therapy (1993)

"Medical Section pf the American Lung Association: Guidelines for the Initial Management of Adults with Community-acquired Pneumonia: Diagnosis, Assessment of Severity, and Initial Antimicrobial Therapy." American Review of Respiratory Disease, 148(5), pp. 1418–1426
Raman analysis of light-emitting porous silicon (1992)

Porous silicon that strongly emits in the visible was analyzed using Raman scattering. The spectrum peaks near 508 cm−1, has a width of ∼40 cm−1, and is very asymmetric. Using a model of phonon confinement, this suggests that the local structure of porous silicon is more like a sphere than a rod and has a characteristic diameter of 2.5–3.0 nm. Polarization Raman measurements suggest that the structure does not consist of a series of parallel columns.
Fiber Bragg Grating Sensors for Harsh Environments (2012)

Because of their small size, passive nature, immunity to electromagnetic interference, and capability to directly measure physical parameters such as temperature and strain, fiber Bragg grating sensors have developed beyond a laboratory curiosity and are becoming a mainstream sensing technology. Recently, high temperature stable gratings based on regeneration techniques and femtosecond infrared laser processing have shown promise for use in extreme environments such as high temperature, pressure or ionizing radiation. Such gratings are ideally suited for energy production applications where there is a requirement for advanced energy system instrumentation and controls that are operable in harsh environments. This paper will present a review of some of the more recent developments.
Two-Round MPC: Information-Theoretic and Black-Box. (2018)

We continue the study of protocols for secure multiparty computation (MPC) that require only two rounds of interaction. The recent works of Garg and Srinivasan (Eurocrypt 2018) and Benhamouda and Lin (Eurocrypt 2018) essentially settle the question by showing that such protocols are implied by the minimal assumption that a two-round oblivious transfer (OT) protocol exists. However, these protocols inherently make a non-black-box use of the underlying OT protocol, which results in poor concrete efficiency. Moreover, no analogous result was known in the information-theoretic setting, or alternatively based on one-way functions, given an OT correlations setup or an honest majority.
Soybean: feed quality and safety. Part 1: Biologically active components. A review (2004)

A large number of soybean components have diverse biological activities. These include hormonal, immunological, bacteriological and digestive effects. The presently known allergens are listed. The divergence between chemical evaluation and biological value is highlighted. The following components are discussed: Kunitz inhibitor, Bowman-Birk inhibitor, saponins, soyacystatin, phytoestrogens (daidzein, glycitein, genistein), Maillard products, soybean hydrophobic protein, soy allergens, lecithin allergens, raffinose, stachyose, 2-pentyl pyridine. The studies describing the effects of the isolated components are reviewed.
A Novel Blockchain-Based Product Ownership Management System (POMS) for Anti-Counterfeits in the Post Supply Chain (2017)

For more than a decade now, radio frequency identification (RFID) technology has been quite effective in providing anti-counterfeits measures in the supply chain. However, the genuineness of RFID tags cannot be guaranteed in the post supply chain, since these tags can be rather easily cloned in the public space. In this paper, we propose a novel product ownership management system (POMS) of RFID-attached products for anti-counterfeits that can be used in the post supply chain. For this purpose, we leverage the idea of Bitcoin's blockchain that anyone can check the proof of possession of balance. With the proposed POMS, a customer can reject the purchase of counterfeits even with genuine RFID tag information, if the seller does not possess their ownership. We have implemented a proof-of-concept experimental system employing a blockchain-based decentralized application platform, Ethereum, and evaluated its cost performance. Results have shown that, typically, the cost of managing the ownership of a product with up to six transfers is less than U.S. $1.
A novel public digital watermarking for still images based on encryption algorithm (2004)

Digital watermarking has been proposed to solve the ownership problem and prevent various malicious attacks in the recent years. However, most proposed watermarking algorithms are kept secret. If the watermarking algorithm can be open, it is more convincing for authentication when there is an argument. In this paper, a novel robust digital watermarking scheme for still images with public watermarking algorithm is proposed. We find the significant frequency coefficients to locate the position for embedding the watermark. The watermark is a binary image logo that can represent its ownership. Its bitmap is reordered by random permutation. Then we employ a data encryption algorithm such as DES (data encryption standard) to encrypt the bitmap permutation index of the logo. Each image is processed to generate a unique ID. The original image and ID is promulgated in the Internet Web site or trust third party as DVCS. An error correction coding scheme is also used to protect the watermark. Simulation shows that our watermarked images are robust against various attacks. Our watermarking algorithm can be open to the public, but only the owner, who uses the encryption algorithm to encrypt the random permutation order of the logo bitmap with the secret key, can retrieve the embedded watermark exactly in the cover image and recover the logo. If there is an argument between the owner and the attacker the secret key and ID can be provided to the arbitrator to resolve the copyright issue more convincingly.
Regulation of lymphokine production by arginine vasopressin and oxytocin: modulation of lymphocyte function by neurohypophyseal hormones (1985)

The neurohypophyseal hormones arginine vasopressin (AVP) and oxytocin are capable of replacing the interleukin 2 (IL 2) requirement for T cell mitogen induction of gamma-interferon (IFN-gamma) in mouse spleen cell cultures. The structural basis for the helper signal by these hormones resides in the six N-terminal amino acids of AVP based on the relative ability of AVP, oxytocin, vasotocin, and pressinoic acid (AVP six N-terminal amino acid peptide) to help in IFN-gamma induction. AVP and pressinoic acid provide maximal help at 10(-10) M, while oxytocin and vasotocin with isoleucine at position three in place of phenylalanine are 10-fold less effective. An AVP competitive antagonist of vasopressor activity blocks the AVP helper signal for production of IFN-gamma, while having no effect on IL 2 help. This suggests that the AVP helper signal operates via binding to an AVP vasopressor-type receptor on lymphocytes.
Formation and characterization of self-assembled films of sulfur-derivatized poly(methyl methacrylates) on gold (1993)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTFormation and characterization of self-assembled films of sulfur-derivatized poly(methyl methacrylates) on goldT. J. Lenk, V. M. Hallmark, J. F. Rabolt, L. Haeussling, and H. RingsdorfCite this: Macromolecules 1993, 26, 6, 1230–1237Publication Date (Print):March 1, 1993Publication History Published online1 May 2002Published inissue 1 March 1993https://pubs.acs.org/doi/10.1021/ma00058a005https://doi.org/10.1021/ma00058a005research-articleACS PublicationsRequest reuse permissionsArticle Views258Altmetric-Citations61LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts
Magnetic property and microstructure dependence of CoCrTa/Cr media on substrate temperature and bias (1992)

Thin CoCrTa/Cr films were deposited at different substrate temperature T/sub s/ and substrate biasing voltage V/sub b/. The in-plane coercivity increased significantly with T/sub S/ and V/sub b/. Coercive squareness and orientation ratio also increased with T/sub s/ and V/sub b/. Transmission electron microscopy (TEM) results indicated that, at low T/sub s/, the magnetic film had an isolated-grain structure, with smaller sub-grain structure within each grain. At high T/sub s/, the magnetic film had a closely packed grain structure, probably due to the enhanced adatom mobility; the grain size was much larger and striations were observed in many grains. The application of a negative biasing voltage to the substrate also tended to reduce the grain isolation. At high T/sub s/, it seems that biasing also reduced the number of grains with striations. Scanning electron microscopy (SEM) results indicated that, with increasing T/sub s/ and V/sub b/, more high-frequency texture line appeared in the magnetic layer, which was likely related to the increase of orientation ratio and squareness with increasing T/sub s/ and V/sub b/.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>
Video denoising by combining Kalman and Wiener estimates (2003)

The paper proposes a computationally fast scheme for denoising a video sequence. Temporal processing is done separately from spatial processing and the two are then combined to get the denoised frame. The temporal redundancy is exploited using a scalar state 1D Kalman filter. A novel way is proposed to estimate the variance of the state noise from the noisy frames. The spatial redundancy is exploited using an adaptive edge-preserving Wiener filter. These two estimates are then combined using simple averaging to get the final denoised frame. Simulation results for the foreman, trevor and susie sequences show an improvement of 6 to 8 dB in PSNR over the noisy frames at PSNR of 28 and 24 dB.
Effects of Intrapleural Heparin or Urokinase on the Extent of Tetracycline-Induced Pleural Disease (1995)

Extravascular fibrin deposition is common at sites of pleural injury and has been related to loculation of pleural fluids. Although thrombolytic therapy has been used to treat pleural loculations, it has not been compared with pleural administration of anticoagulant therapy. We therefore tested interventional strategies designed to compare the relative effects of in vivo anticoagulation or supplemented fibrinolysis on pleural injury, and to characterize the local tissue responses to these modalities. Early intrapleural instillation of saline (Group 1), heparin 1,000 IU (Group 2), or urokinase (uPA) 1,500 IU (Group 3) every 12 h for 3 d was used to interrupt pleural adhesion formation and pleural fibrosis induced by tetracycline hydrochloride in rabbits. Procoagulant and fibrinolytic activities were determined in pleural effusion samples obtained serially every 12 h after the last administered intrapleural dose. Pleural fluid procoagulant activity was blocked by intrapleural heparin (p < 0.001), but plasminogen-dependent fibrinolytic activity was rarely increased by intrapleural urokinase. Most plasminogen activator activity in the pleural fluids was found at high-molecular-weight regions by enzymography, suggesting that it was bound to inhibitor(s). Pathologic analysis at 14 d demonstrated that the number of pleural adhesions in the heparin (8.4 +/- 3.4, mean +/- standard error) and uPA groups (6.1 +/- 2.5) was less than in saline-treated tetracycline controls (20.7 +/- 4.7) (both p < 0.02). Visceral pleural thickness did not differ between groups (p = NS). We conclude that intrapleural heparin or uPA are equally effective in decreasing intrapleural adhesions in tetracycline-induced pleural injury. The data indicate that early anticoagulation or fibrinolytic intervention can attenuate subsequent pleural symphysis in this model.
Learning Deep Neural Networks for Vehicle Re-ID with Visual-spatio-temporal Path Proposals (2017)

Vehicle re-identification is an important problem and has many applications in video surveillance and intelligent transportation. It gains increasing attention because of the recent advances of person re-identification techniques. However, unlike person re-identification, the visual differences between pairs of vehicle images are usually subtle and even challenging for humans to distinguish. Incorporating additional spatio-temporal information is vital for solving the challenging re-identification task. Existing vehicle re-identification methods ignored or used over-simplified models for the spatio-temporal relations between vehicle images. In this paper, we propose a two-stage framework that incorporates complex spatio-temporal information for effectively regularizing the re-identification results. Given a pair of vehicle images with their spatio-temporal information, a candidate visual-spatio-temporal path is first generated by a chain MRF model with a deeply learned potential function, where each visual-spatio-temporal state corresponds to an actual vehicle image with its spatio-temporal information. A Siamese-CNN+Path-LSTM model takes the candidate path as well as the pairwise queries to generate their similarity score. Extensive experiments and analysis show the effectiveness of our proposed method and individual components.
Differential expression of the insulin gene transcriptional repressor CCAAT/enhancer-binding protein beta and transactivator islet duodenum homeobox-1 in rat pancreatic beta cells during the development of diabetes mellitus. (1998)

Impairment of insulin secretion due to prolonged hyperglycemia is believed to contribute to the manifestation of diabetes mellitus, often referred to as glucose toxicity of pancreatic beta cells. In addition, impaired beta cell function has been associated with elevated islet triglyceride content (lipotoxicity). Impaired functions of the transactivating factors islet duodenum homeobox-1 (IDX-1) and RIPE3b-binding proteins have been implicated in the pathological downregulation of insulin gene transcription by high glucose levels in pancreatic beta cell lines in vitro, and, similarly, the exposure of pancreatic islets to fatty acids decreases IDX-1 expression. Previously, we identified the basic leucine zipper transcription factor CCAAT/enhancer-binding protein beta (C/ EBPbeta) as an inhibitor of insulin gene transcription in pancreatic beta cells and showed that the expression of C/EBPbeta is upregulated in insulinoma-derived beta cell lines by sustained high glucose concentrations. Here we describe the regulation of the expression of IDX-1, C/EBPbeta, and insulin at the mRNA and protein levels in pancreatic islets in animal models of diabetes mellitus. Concomitant with a downregulation of IDX-1 and insulin expression, C/EBPbeta is upregulated in association with the manifestation of hyperglycemia during the development of diabetes in the Zucker diabetic fatty (fa/fa) rat and in the 90% pancreatectomy rat model of diabetes. This regulation is demonstrated to influence both the amount of cellular protein and the level of steady state messenger RNA. Our findings indicate that the differential dysregulation of both IDX-1 and C/EBPbeta, in response to sustained hyperglycemia or hyperlipidemia, may be involved in the impairment of insulin gene expression during the manifestation of diabetes mellitus.
Breast tumor copy number aberration phenotypes and genomic instability (2006)

Many of the genes associated with higher frequency of copy number aberrations are direct targets of E2F, supporting the hypothesis that deregulation of the Rb pathway is a major contributor to chromosomal instability in breast tumors. These observations are consistent with failure to find mutations in sporadic tumors in genes that have roles in maintenance or manipulation of the genome.
Staurosporine overrides checkpoints for mitotic onset in BHK cells. (1992)

Under normal conditions, mammalian cells will not initiate mitosis in the presence of either unreplicated or damaged DNA. We report here that staurosporine, a tumor promoter and potent protein kinase inhibitor, can uncouple mitosis from the completion of DNA replication and override DNA damage-induced G2 delay. Syrian hamster (BHK) fibroblasts that were arrested in S phase underwent premature mitosis at concentrations as low as 1 ng/ml, with maximum activity seen at 50 ng/ml. Histone H1 kinase activity was increased to approximately one-half the level found in normal mitotic cells. Inhibition of protein synthesis during staurosporine treatment blocked premature mitosis and suppressed the increase in histone H1 kinase activity. In asynchronously growing cells, staurosporine transiently increased the mitotic index and histone H1 kinase activity but did not induce S phase cells to undergo premature mitosis, indicating a requirement for S phase arrest. Staurosporine also bypassed the cell cycle checkpoint that prevents the onset of mitosis in the presence of damaged DNA. The delay in mitotic onset resulting from gamma radiation was reduced when irradiation was followed immediately by exposure to 50 ng/ml of staurosporine. These findings indicate that inhibition of protein phosphorylation by staurosporine can override two important checkpoints for the initiation of mitosis in BHK cells.
Position Fault Detection and Failover Method for UAM PMSM Control (2021)

A strict fault tolerance is required in urban air mobility (UAM). Position sensor is one of major maintenance target in permanent magnet synchronous motor (PMSM), since it is under hostile environments. As the sensor backup, sensorless algorithms are often used. In this work, sensorless algorithm and resolver work in cooperative and surveilling mode to each other. Based on the PMSM model, Runge-Kutta method is utilized to predict currents under two different position. These currents are compared with the real current measurements, and the result points to the angle suspected of being defective. Simultaneously, the deviation between the resolver sensor and the sensorless angle is always monitored. As this deviation, i.e. the angle error, increases, the weight of the suspected angle continuously decreases. Also, the fault is flagged when corresponding error exceeds a threshold value. In this work, a smooth transition is achieved thanks to logistic function-based weighting and sensor fusion The proposed method is verified through simulations and experiments.