gebhart/patrepeval huggingface dataset:
A threshold redundancy management algorithm for skewed sensor arrays (2002)

A thresholdless algorithm for redundancy management that can be used to obtain specified failure tolerance for a given SRIMU (skewed redundant inertial measurement unit) is presented. The algorithm is an extension of some earlier work by J.E. Potter and M.C. Suman (1986), which presented a method for implementing threshold less (FDI) (fault detection and isolation) on a pentad skewed sensor array. The proposed algorithm overcomes the single-failure-tolerance restriction of Potter's algorithm, and allows thresholdless FDI to be practically implemented on a hexad or higher order array. Some performance results are given which compare a hexad IMU, under a particular failure scenario, with no FDI algorithm, a threshold FDI algorithm, and the thresholdless FDI algorithm. The performance of the thresholdless FDI algorithm is seen to be comparable to that of the threshold FDI algorithm for the particular launch vehicle trajectory. Thus, comparable performance to threshold FDI algorithms may be attained by the thresholdless algorithm without the additional complexity of threshold determination.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
The Series Reactance in Coaxial Lines (1948)

An experimental investigation has been conducted to determine the effect of a reactance placed in series with the inner conductor of a coaxial line. It was found that capacitive reactances appear in parallel with the inserted series reactance, and in parallel with the resultant impedance of the line at the point where the series reactance is placed. These capacitances can be determined experimentally, and in usual cases are found to be between 10 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">-14</sup> and 10 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">-12</sup> farads. The results of these data have been extended to show the capability of the series reactance as a matching network in coaxial lines, and also its use with hollow cylindrical dipoles. In the course of this investigation it was necessary to determine the capacitance appearing at a step discontinuity in the inner conductor of a coaxial line. The results are in good agreement with values predicted in a previous paper.
Current status of development of low temperature deformable mirrors (2018)

In adaptive optical (AO) systems, deformable mirrors are used to correct wavefront aberrations. In this study, we introduce various structural deformable mirrors used in low temperature environments: discrete actuators deformable mirror, bimorph deformable mirror, membrane deformable mirror and MEMS deformable mirror. And the basic working principle of these deformed mirrors is briefly described; the research results of low temperature deformable mirrors are presented in detail. According to formerly researches, we found out the two main factors influencing the performance of low temperature deformable mirrors. The advantages and disadvantages of various structural low temperature deformable mirrors are analyzed. Finally, the development trend of low temperature deformable mirrors is prospected.
An Annular Mechanical Temperature Compensation Structure for Gas-Sealed Capacitive Pressure Sensor (2012)

A novel gas-sealed capacitive pressure sensor with a temperature compensation structure is reported. The pressure sensor is sealed by Au-Au diffusion bonding under a nitrogen ambient with a pressure of 100 kPa and integrated with a platinum resistor-based temperature sensor for human activity monitoring applications. The capacitance-pressure and capacitance-temperature characteristics of the gas-sealed capacitive pressure sensor without temperature compensation structure are calculated. It is found by simulation that a ring-shaped structure on the diaphragm of the pressure sensor can mechanically suppress the thermal expansion effect of the sealed gas in the cavity. Pressure sensors without/with temperature compensation structures are fabricated and measured. Through measured results, it is verified that the calculation model is accurate. Using the compensation structures with a 900 μm inner radius, the measured temperature coefficient is much reduced as compared to that of the pressure sensor without compensation. The sensitivities of the pressure sensor before and after compensation are almost the same in the pressure range from 80 kPa to 100 kPa.
A field programmable analog array and its application (2002)

A Field Programmable Analog Array (FPAA) is presented based on switched capacitor technology. The architecture offers an unconstrained topology similar to its digital counterpart, containing an array of identical undedicated analog cells. This makes it possible to program both the functionality of each cell and the interconnect between cells. As a result a large number of diverse architectures may be implemented. The analog array can be programmed to perform many of the routine tasks associated with control systems design. Its linear and non-linear signal processing abilities can provide a wide range of waveform generation functions. The device can also be programmed for precise phase and magnitude characteristics. Some examples related to control systems are discussed.
Seamless service continuity in cloud based lte systems (2013)

Cloud computing model offers better network resource utilization by pooling shared computing resources that can be rapidly provisioned and released. The increasing use of mobile devices (e.g. smart phones, tablets, etc.) has increased the complexity in provisioning cellular network resources. Applying cloud computing model in LTE systems could be a good solution to increase LTE’s performance by building a shared distributed LTE mobile network that can optimize the utilization of resources, minimize communication delays, and avoid bottlenecks.
One of the most important concepts used in mobile networks is service continuity. Mobile users moving from one sub-network to another sub-network should be able to seamlessly continue retrieving content and use services (e.g. video streaming, gamming, VoIP, etc.) that they want. In cloud based LTE systems, services are hosted on Virtual Machines (VMs) that can move and migrate across multiple networks to locations that are the best to deliver services to mobile users. The migration of VMs and/or service/functionality instances running on such VMs should happen without losing service continuity.
In this thesis, Content Centric Networking (CCN) is evaluated and verified whether it is possible to be implemented in cloud based LTE systems as a solution for service continuity. Several integration options of CCN in LTE systems and the proposed solutions to support VM and/or content migration are described in detail. Two sets of experiments that focus on “Content Migration Support” and “VM and Content Migration Support” are implemented and performed using ns-3 LENA simulation environment together with ndnSIM. The simulation results demonstrate that the proposed solution can support seamless service continuity when content migration occurs. However, in order to support service continuity when VM migration occurs, the implementation of solutions such as mobility prediction systems are needed to predict the movement of users and determine when the VM migration should be triggered in advance.
Extending EMV Tokenised Payments to Offline-Environments (2016)

Tokenisation has been adopted by the payment industry as a method to prevent Personal Account Number (PAN) compromise in EMV (Europay MasterCard Visa) transactions. The current architecture specified in EMV tokenisation requires online connectivity during transactions. However, it is not always possible to have online connectivity. We identify three main scenarios where fully offline transaction capability is considered to be beneficial for both merchants and consumers. Scenarios include making purchases in locations without online connectivity, when a reliable connection is not guaranteed, and when it is cheaper to carry out offline transactions due to higher communication/payment processing costs involved in online approvals. In this study, an offline contactless mobile payment protocol based on EMV tokenisation is proposed. The aim of the protocol is to address the challenge of providing secure offline transaction capability when there is no online connectivity on either the mobile or the terminal. The solution also provides end-to-end encryption to provide additional security for transaction data other than the token. The protocol is analysed against protocol objectives and we discuss how the protocol can be extended to prevent token relay attacks. The proposed solution is subjected to mechanical formal analysis using Scyther. Finally, we implement the protocol and obtain performance measurements.
Characterization of angiogenesis and inflammation surrounding ePTFE implanted on the epicardium (2002)

The response of epicardial tissue to the implantation of expanded polytetrafluoroethylene (ePTFE) was evaluated and compared with identical material implanted within subcutaneous and adipose tissues. These two tissue environments were selected for comparison with epicardial implants because they represent tissue often involved in device implantation. Discs of ePTFE (6 mm) were implanted into three different tissue sites in Sprague-Dawley rats. At 5 weeks, polymers and surrounding tissues were harvested and processed for light microscopy. General histology and histochemistry data indicated all polymers to be well incorporated with new tissue. Subcutaneous implants were covered by a dense fibrous capsule (55-70 microm). Epicardial and adipose implants had no fibrous capsule and a significantly greater number of microvessels (arterioles, capillaries, and venules) within the surrounding tissues compared with subcutaneous implants. An increased level of inflammation was also observed around epicardial implants compared with the other implants. Additionally, the new vasculature surrounding epicardially implanted ePTFE revealed an altered microvessel density and vessel type distribution compared with normal (control) epicardium. These results suggest that epicardial tissue responds to implanted ePTFE with a robust inflammatory response that may support the formation of a new microvasculature that is uniquely different from the native epicardial microvasculature.
Change in the distribution systems of western industrialised economies (1970)

Discusses research based on two sets of data, published ads and transcripts of interviews with chain interviews. Attempts to show that ‘status’ is a concept of value when considering what indicators of consumer behaviour highlight opportunities for change in a distribution analysis. Analyses results leading to a brief theoretical discussion of short‐run adaptations of decision rules and the necessary condition for construction of logical flow simulation models. Concludes that the attempts here to stimulate selection of a single grocery item for a weekly chain ad produced a simple model, which had several causes giving simplicity.
A 30–100 GHz Wideband Sub-Harmonic Active Mixer in 90 nm CMOS Technology (2008)

This letter presents a 30-100 GHz wideband and compact fully integrated sub-harmonic Gilbert-cell mixer using 90 nm standard CMOS technology. The sub-harmonic pumped scheme with advantages of high port isolation and low local oscillation frequency operation is selected in millimeter-wave mixer design. A distributed transconductance stage and a high impedance compensation line are introduced to achieve the flatness of conversion gain over broad bandwidth. The CMOS sub-harmonic Gilbert-cell mixer exhibits -1.5 plusmn 1.5 dB measured conversion gain from 30 to 100 GHz with a compact chip size of 0.35 mm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> . The OP <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">1</sub> <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">dB</sub> of the mixer is -10.4 dBm and -9.6 dBm at 77 and 94 GHz, respectively. To the best of our knowledge, the monolithic microwave integrated circuit is the first CMOS Gilbert-cell mixer operating up to 100 GHz.
Inkjet Printing of Energetic Materials: Sub-Micron Al/MoO3 and Al/Bi2O3 Thermite. (2012)

Abstract not provided.
[Chemical constituents of Poria cocos]. (2014)

The chemical constituents of Poria cocos were studied by means of silica gel, ODS column chromatography, Sephadex LH-20 and preparative HPLC. Thirteen compounds were isolated from this plant. By analysis of the ESI-MS and NMR data, the structures of these compounds were determined as tumulosic acid (1), dehydrotumulosic acid (2), 3beta, 5alpha-dihydroxy-ergosta-7, 22-dien-6-one (3), 3beta, 5alpha, 9alpha-trihydroxy-ergosta-7, 22-diene -6-one (4), ergosta-7, 22-diene-3-one (5), 6, 9-epoxy-ergosta-7,22-diene-3-ol (6), ergosta-4,22-diene-3-one (7), 3beta, 5alpha, 6beta-trihydroxyl-ergosta-7,22-diene (8), ergosta-5, 6-epoxy-7,22-dien-3-ol (9), beta-sitosterol (10), ribitol (11), mannitol (12), and oleanic acid 3-O-acetate (13), respectively. Compounds 3-13 were isolated from the P. cocos for the first time.
Comparative Analysis of Feature Extraction Methods of Malware Detection (2015)

Recent years have encountered massive growth in malwares which poses a severe threat to modern computers and internet security. Existing malware detection systems are confronting with unknown malware variants. Recently developed malware detection systems investigated that the diverse forms of malware exhibit similar patterns in their structure with minor variations. Hence, it is required to discriminate the types of features extracted for detecting malwares. So that potential of malware detection system can be leveraged to combat with unfamiliar malwares. We mainly focus on the categorization of features based on malware analysis. This paper highlights general framework of malware detection system and pinpoints strengths and weaknesses of each method. Finally we presented overview of performance of present malware detection systems based on features.
Numerical simulation of biased roller transfer by one-dimensional quasi-steady electric field analysis (2001)

A stable and accurate numerical simulation technique is proposed to investigate performance of the transfer system using a biased transfer roller(BTR) in electrophotography. A one-dimensional layer-structured model was used to calculate distribution of electric field and current under air discharge. Concentration of generated ozone was also calculated. As results of calculations for a typical black and white laser printer, it was shown that (1) a transfer system using a semi-conductive BTR under constant current operation was robust against variation in resistance of media, and (2) concentration of ozone in the BTR system was two orders lower than that in the system using a conventional corona device.
Orphan receptor HNF-4 and bZip protein C/EBP alpha bind to overlapping regions of the apolipoprotein B gene promoter and synergistically activate transcription (1993)

As the sole protein component of low density lipoproteins, apolipoprotein B (apoB) plays an important role in cholesterol metabolism. Previously, we found that the proximal promoter region of apoB (-81 to -52 relative to the start site) played a critical role in hepatocyte-specific gene expression and that that region contained overlapping binding sites for nuclear factors AF-1 (-81 to -62) and C/EBP (-69 to -52) (Metzger, S., Leff, T., and Breslow, J. L. (1990) J. Biol. Chem. 265, 9978-9983). In this study, we show that HNF-4, a member of the steroid hormone receptor superfamily, binds the AF-1 site on the apoB promoter and through it activates transcription in transient transfection assays in both liver and non-liver cell lines, HepG2 and HeLa, respectively. Mutational analysis of the AF-1/HNF-4 binding site indicated a correlation of HNF-4 binding and transcriptional activity. In addition, transient co-transfection experiments with HNF-4 and C/EBP alpha expression vectors showed that the two factors can synergistically activate transcription to levels more than 3-fold above the sum of either factor alone. Finally, using gel retardation analysis we show that purified HNF-4 and C/EBP proteins can concurrently occupy their overlapping binding sites on the apoB promoter in vitro. However, since the same system showed a lack of cooperative binding, we argue that an alternative mechanism is responsible for the synergistic effect of HNF-4 and C/EBP alpha on apoB gene transcription.
Metabolism of aildenafil <i>in vivo</i> in rats and <i>in vitro</i> in mouse, rat, dog, and human liver microsomes (2013)

Aildenafil, 1-{[3-(6, 7-dihydro-1-methyl-7-oxo-3-propyl-1H-pyrazolo [4, 3-d] primidin-5-yl)-4-ethoxyphenyl] sulfonyl}-cis-3, 5-dimethylpiperazine, a phosphodiesterase type V enzyme inhibitor (PDE5I), is under development for treatment of erectile dysfunction (ED). The purpose of this study was to elucidate metabolism of aildenafil in vivo in rats and in vitro in mouse, rat, dog, and human liver microsomes. Thirty-one phase I metabolites have been found by LTQ/Orbitrap hybrid mass spectrometry in rat urine, faeces, and bile after oral administration. Major biotransformation pathways of aildenafil included N-dealkylation of the piperazine ring, hydroxylation and dehydrogenation, aliphatic hydroxylation and loss of alkyl group of piperazine ring. Minor pathways involved hydroxylation on the phenyl ring, pyrazole N-demethylation, O-deethylation, loss of piperazine ring (cleavage of N-S bond) and dehydrogenation on the piperazine ring. Similar metabolic pathways of aildenafil were observed in the incubations of liver microsomes from mouse, rat, and dog as well as from human. The depletion rate of parent drug in mouse and rat liver microsomes was significantly different from that in human liver microsomes. The cytochrome P450 reaction phenotyping analysis was conducted using isozyme-specific inhibitors. The results indicated that CYP3A was the main isoenzyme involved in oxidative metabolism of aildenafil. Overall, these in vitro and in vivo findings should provide valuable information on possible metabolic behaviours of aildenafil in humans.
A palmtop display for dextrous manipulation with haptic sensation (1996)

Palmtop displays have been extensively studied, but most of them simply refocus information in the real or virtual world. The palmtop display for dextrous manipulation (PDDM) proposed in this paper allows the users to manipulate a remote object as if they were holding it in their hands. The PDDM system has a small LCD, a 3D mouse and a mechanical linkage (force display). When the user locks onto an object in the center of the palmtop display, s/he can manipulate the object through motion input on the palmtop display with haptic sensation. In this paper, the features of the PDDM with haptic sensation are described, then four operating methods and the haptic representation methods for a trial model are proposed and evaluated. (see Video Figure in the CH196 Video Program)
A firm real-time system implementation using commercial off-the-shelf hardware and free software (2002)

The emergence of multimedia and high-speed networks has expanded the class of applications that combine the timing requirements of hard real-time applications with the need for operating system services typically available only on soft-real time or time-sharing systems. These applications, which the authors describe as firm real-time, currently have no widely-available, low-cost operating system to support them. They discuss modifications they have made to the popular Linux operating system that give it the ability to support the comparatively stringent timing requirements of these applications, while still giving them access to the full range of Linux services. Using their firm real-time system as a basis, they have developed the ATM Reference Traffic System (ARTS) that is capable of recording and accurately reproducing packet-level ATM traffic streams with timing resolution in microseconds. The effectiveness of this application, as well as the comparative ease with which it was developed illustrate the performance and utility of the system.
[Synthesis and antithrombotic activity of acetylsalicyl ferulic acid-coupling furoxans and nitrates]. (2006)

Acetylsalicyl ferulic acid-coupling furoxans and nitrates might he used as a lead for further study.
Genetic Differences among C57BL/6 Substrains (2009)

The C57BL/6 mouse is the most well-known inbred mouse strain, and has been widely used as a genetic background for congenic and mutant mice. A number of C57BL/6 substrains have been derived from the C57BL/6 founder line and are reported to differ in several phenotypes. There are several major sources of C57BL/6 substrains for the biomedical research community. The importance of their genetic and phenotypic differences among substrains, however, has not yet been well recognized by biomedical researchers. Here, we report the result of screening of the functional deletion of the nicotinamide nucleotide transhydrogenase (Nnt) gene and 1,446 SNPs genotyping among seven C57BL/6 substrains from different sources, such as C57BL/6J, C57BL/6JJcl, C57BL/6JJmsSlc, C57BL/6NJcl, C57BL/6NCrlCrlj, C57BL/6NTac, and C57BL/6CrSlc. The deletion of exon 7-11 in the Nnt gene that was previously reported in C57BL/6J was also observed in other C57BL/6J substrains, indicating that this functional deletion probably occurred at an early stage in the establishment of C57BL/6J substrains. The genotyping of SNP loci clearly demonstrate genetic differences between C57BL/6J and C57BL/6N substrains at 11 loci. Besides, we found another SNP differing between C57BL/6J and other C57BL/6J substrains available from commercial breeders. No genetic difference was detected among C57BL/6N substrains. The C57BL/6CrSlc mouse, originally derived from the National Cancer Institute of the NIH was found to be the same as the C57BL/6N substrains by the SNP pattern. These data will be useful for accurate genetic monitoring of genetically engineered mice with the C57BL/6 background.
A Novel Bioassay Platform Using Ferritin‐Based Nanoprobe Hydrogel (2012)

Ferritin-based nanoprobe (FBNP) hydrogel provides solutions to some of the traditional problems of bioassays. The schematic shows 3D and highly specific multiplex assays of markers for AIDS and Sjögren's syndrome using quantum-dot based reporters with different fluorescence emissions for the two syndromes. The advantages of using a hydrogel include that the stability of FBNPs is significantly enhanced within the hydrogel, FBNPs are distributed evenly throughout the hydrogel matrix, and the amount of FBNPs within the hydrogel can be well controlled. Detailed facts of importance to specialist readers are published as ”Supporting Information”. Such documents are peer-reviewed, but not copy-edited or typeset. They are made available as submitted by 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.
Voriconazole inhibition of vitamin A metabolism: Are adverse events increased in cystic fibrosis patients? (2010)

Significant adverse effects of voriconazole were noted in all treated CF patients. We speculate that this may be due to suppression of activity of hepatic enzymes involved in all transretinonic acid metabolism coupled with vitamin A supplementation in CF. Consideration should be given to reducing vitamin A supplementation during voriconazole treatment.
Damage Free Cryogenic Etching of a Porous Organosilica Ultralow-k Film (2012)

International audience