gebhart/patrepeval huggingface dataset:
Reputation management framework and its use as currency in large-scale peer-to-peer networks (2004)

We propose a reputation management framework for large-scale peer-to-peer (P2P) networks, wherein all nodes are assumed to behave selfishly. The proposed framework has several advantages. It enables a form of virtual currency, such that the reputation of nodes is a measure of their wealth. The framework is scalable and provides protection against attacks by malicious nodes. The above features are achieved by developing trusted communities of nodes whose members trust each other and cooperate to deal with the problem of nodes' selfishness and possible maliciousness.
Quality factor improvement of silicon nitride micro string resonators (2011)

Resonant micro and nano strings are of interest for sensor applications due to their extraordinary high quality factors, low mass and tunable resonant frequency. It has been found that the quality factor of strings is usually limited by clamping loss. In this work, clamping loss has been addressed by varying the clamping design and string geometry. We present silicon nitride micro strings with quality factors (Q) of up to 4 million in high vacuum achieved by minimizing clamping loss. For applications such as for chemical sensing, strings need to vibrate at atmospheric pressure. Maximal quality factor values in air were measured for the shortest strings with the highest resonant frequency having an optimal width to height ratio.
Production and Properties of Short Jute and Short E-Glass Fiber Reinforced Polypropylene-Based Composites (2012)

Short jute fiber (2 - 3 mm) reinforced polypropylene PP-based composites (20% fiber by weight) were fabricated using compression molding and the mechanical properties were evaluated. Tensile strength (TS), tensile modulus (TM), elongation at break (Eb%), flexural strength (FS), flexural modulus (FM), impact strength (IS), and hardness of the composites were found to be 32 MPa, 850 MPa, 12%, 38 MPa, 1685 MPa, 18 kJ/m2 and 96 shore-A, respectively. Then short E-glass fiber (2 - 3 mm) reinforced PP-based composites (20% fiber by weight) were fabricated and mechanical properties were compared with short jute-based composites. Short jute-based composites showed excellent mechanical properties and comparable to short E-glass-based composites. Soil degradation test of both types of composites indi-cated that jute/PP composites significantly lost much of its mechanical properties but E-glass/PP composites retained major portion of its original integrity. Interfaces of the degraded composites were investigated by scanning electron microscopy and supported the biodegradation properties of jute/PP composites.
Mobile Cloud Computing based on service oriented architecture: Embracing network as a service for 3 RD party application service providers (2011)

The recent emergence of Cloud Computing in the IT world has opened doors for new revenue streams and business models. The movement towards a service-oriented architecture and an all-IP based communication system has led to the IP Multimedia Subsystem (IMS) being accepted as the Next Generation Networks (NGN) service control-provisioning platform. The Telco 2.0 domain can benefit from service enhancement and Web 2.0 technologies such as Cloud Computing. This can be achieved by opening gateways and APIs guarding rich underlying network resources (e.g. location) to 3rd Party ASPs, thus adopting the delivery of Network as a Service (NaaS). Telco services are faced with opportunities to make use of powerful computational power and storage services offered by cloud environments to accelerate business-processing speeds.
Improving the Measurement of Serum Thyroglobulin With Mass Spectrometry (2013)

Novel serum Tg assays that use mass spectrometry may avoid the issue of autoantibody interference and other problems with currently available immunoassays for Tg. Prospective studies are needed to fully understand the potential benefits of novel Tg assays to patients and care providers.
Intelligent control of Piezoelectric Micropump based on MEMS flow sensor (2010)

The liquid dosing system has been studied widely as it had been used in many technical and medical applications. And in recent years, the miniaturization of the liquid dosing system as well as the accuracy of liquid transfer has gradually become a hot research field. In this paper, a MEMS (Micro-electromechanical system) flow sensor was integrated with a PZT(Piezoelectric Transducer) pump to make a closed-loop drug dosing system. Benefiting from the feedback of sensor information, the system can self-adjust the driving voltage of the PZT pump to precisely dispensing desired liquid volume. First, the structure and principle of the PZT pump will be introduced briefly. Secondly, the MEMS flow sensor is presented. Finally, the fuzzy PID (Proportional-Integral-Differential) closed-loop control strategy is proposed to calculate and adjust the driving voltage in real-time. Finally, experiment results show that the drug delivery system could precisely delivery drug volume with error smaller than 0.01µL when desired volume is 100µL.
Highly Reliable Large-Scale Optical Cross-Connect Architecture Utilizing MxM Wavelength-Selective Switches (2017)

We propose a highly reliable and large-scale OXC architecture that consists of MxM WSSs. The proposed scheme can drastically reduce the annual downtime of optical paths stemming from WSS failures while retaining excellent cost-effectiveness.
Chinese signature verification with moment invariants (2002)

Zernike moment invariants have been widely used in pattern recognition and image processing. In this paper, Chinese signature verification using normalized Zernike moment invariants (NZMI) is proposed. Different orders of moment invariants are studied. Simulation results show that the proposed approach for signature verification is rotation-invariant and scale-invariant, and the preliminary results we got are very promising. Furthermore experiments using projection are also carried out. The results are compared with those of NZMI.
Tungsten Oxides as Active Supports for Highly Dispersed Platinum Microcenters: Electrocatalytic Reactivity Toward Reduction of Hydrogen Peroxide and Oxygen (1997)

The electrochemical deposition of spatially dispersed platinum centers within a tungsten oxide film onto the surface of a carbon substrate is described. The approach explores cathodic fabrication of metallic Pt microparticles via anodic dissolution of a Pt counterelectrode. Nonstoichiometric tungsten(VI,V) oxides are simultaneously electrodeposited with Pt particles during reductive potential cycles. We describe electrocatalytic properties of the resulting composite films toward reduction of dioxygen. We also demonstrate that a Pt‐free tungsten oxide film shows strong electrocatalytic activity for reduction of hydrogen peroxide. The method permits preparation of films containing platinum microcenters at low loadings (ca. ) within the reactive oxide matrix. We postulate bifunctional activity of the system in terms of promoting catalytic reduction of oxygen (by the traces of platinum) and reduction of any hydrogen peroxide intermediate [by the W(VI,V) oxide matrix].
2D Cartesian Code (2005)

The structure of the 2D Cartesian code is similar to that of the 1D conduction code. The code is again divided into two parts: The problem-dependent user part containing files COM2D.FOR and USER2D.FOR and the problem independent library part that contains the LIB2D.FOR file. The listings of each file are given at the end of this appendix. The list of variable names with their meanings is given in Table C.1.
Building fuzzy systems by soft competitive learning (2002)

Introducing learning paradigms of neural networks into fuzzy systems is one of the approaches to integrating fuzzy systems with neural networks. Following this guideline, this paper presents an approach to the problem of modeling an unknown system by a fuzzy rule-based model from measured data through soft competitive learning. We address two fundamental issues associated with the rule-based modeling: rule-base construction and rule-base manipulation. By employing fuzzy concepts and competitive learning, a two-step approach consisting of a principal and refining algorithm has been suggested to extract rules from available data set. An optimal algorithm is developed for manipulating the obtained rule-base with novel data. Simulation results on three examples taking from function approximation, time-series prediction, and nonlinear dynamical modeling are given.
The MICROSCOPE experiment, ready for the in-orbit test of the equivalence principle (2012)

International audience
[Cp<sub>2</sub>Ti(PMe<sub>3</sub>)<sub>2</sub>] ‐ eine ergiebige Quelle für Titanocenderivate (1985)

Als Trimethylphosphan‐stabilisiertes Titanocen kann die Titelverbindung 1 aufgefaßt werden. Mit 1 ist Titanocen in bisher unerreichter Einfachheit in Lösung zugänglich geworden; die PMe 3 ‐Liganden können unter milden Bedingungen durch eine Vielzahl von Substraten ersetzt werden magnified image . magnified image
Molecular cloning and characterization of a rat homolog of CAP, the adenylyl cyclase-associated protein from Saccharomyces cerevisiae (1993)

We have isolated a rat cDNA whose expression suppresses the physiological consequences of the chromosomal disruption of CAP, the gene encoding the adenylyl cyclase-associated protein of Saccharomyces cerevisiae. Yeast CAP is a bifunctional protein: the NH2 terminus is necessary and sufficient for cellular responsiveness to activated RAS proteins, while the COOH terminus is required for normal cellular morphology and growth control. The rat MCH1 cDNA encodes a protein of 474 amino acids that is 36% identical to S. cerevisiae CAP and is capable of suppressing the loss of the COOH-terminal functions of CAP when expressed in yeast. The MCH1 protein therefore appears to be a structural and functional homolog of the yeast cyclase-associated proteins. Northern analysis of MCH1 gene expression shows it to be constitutively expressed in all cell and tissue types examined. The cloning of a rat homolog of CAP, in addition to the cloning of a human CAP homolog by Matviw et al. (Matviw, H., Yu, G., and Young, D. (1992) Mol. Cell. Biol. 12, 5033-5040), demonstrates that both cyclase-associated proteins and their functions may have evolved with mammalian cells.
Protein kinase C transduces the signal for Langerhans' cell migration from the epidermis. (1993)

Langerhans' cells (LC) take up antigen in the epidermis and then migrate to the local lymph nodes where they present the antigen to T lymphocytes, initiating cutaneous immune responses. However the intracellular mechanisms which mediate LC migration from the epidermis are unknown. We have demonstrated that activation of protein kinase C (PKC) induces this LC migration. An analogue of diacylglycerol (DAG), the physiological activator of PKC, L-alpha-dioctanoyl glycerol (oDAG), applied topically onto the skin of mice caused a significant depletion in the density of Ia+ and J11d+ epidermal LC. oDAG decreased the density of LC in both BALB/c and C57BL mice 24 hr following application, over a dose range of 0.5-24 microM; 200 or 0.05 microM being ineffective. LC density remained depressed for up to 7 days and oDAG increased the number of fluorescein isothiocyanate (FITC) positive cells in the local lymph nodes of mice treated topically with FITC, indicating that oDAG induced LC migration from the epidermis. Additionally, LC migration from the epidermis induced by the contact sensitizer 2,4,6-trinitrochlorobenzene (TNCB) was blocked when PKC was inhibited by palmitoyl-DL-carnitine chloride (PCC) or D-Sphingosine (Sph), indicating that LC cannot migrate from the epidermis when PKC is inhibited. However, PCC did not inhibit the induction of contact sensitivity. Thus PKC transduces the signal which leads to LC migration from the epidermis, and disruptions in this secondary messenger may interfere with the induction of immune responses in the skin by disturbing LC migration from the epidermis to the local lymph nodes.
Hemolysis in Hypertensive Disorders of Pregnancy (1992)

The hemolysis markers LDH, haptoglobin, bilirubin (serum, urine), urobilinogen (urine), fragmentocytes and free hemoglobin were compared in 166 patients with various degrees of hypertensive disorders of pregnancy and 179 nonhypertensive pregnant controls in a weekly screening program. Early recognition of hemolysis was limited to a period of 1 week before the actual delivery date. In the diagnostic sensitivity, haptoglobin and to a lesser degree unspecific LDH were clearly superior to the other hemolysis parameters. A decreasing platelet count also has to be taken as an indicator of impending hemolysis. Subclinical hemolysis was associated with poorer fetomaternal outcome. With the aid of haptoglobin, LDH and thrombocytes, an incipient HELLP syndrome could be recognized 1-2 days before the complete clinical picture became apparent.
Alternate Energy Coupling of ArsB, the Membrane Subunit of the Ars Anion-translocating ATPase (1997)

The arsenical resistance (ars) operon of the conjugative R-factor R773 confers resistance to arsenical and antimonial compounds in Escherichia coli, where resistance results from active extrusion of arsenite catalyzed by the products of the arsA and arsB genes. Previous in vivo studies on the energetics of arsenite extrusion showed that expression of both genes produced an ATP-coupled arsenite extrusion system that was independent of the electrochemical proton gradient. In contrast, in cells expressing only the arsB gene, arsenite extrusion was coupled to electrochemical energy and independent of ATP, suggesting that the Ars transport system exhibits a dual mode of energy coupling depending on the subunit composition. In vitro the ArsA-ArsB complex has been shown to catalyze ATP-coupled uptake of 73AsO2(-1) in everted membrane vesicles. However, transport catalyzed by ArsB alone has not previously been observed in vitro. In this study we demonstrate everted membrane vesicles prepared from cells expressing only arsB exhibit uptake of 73AsO2(-1) coupled to electrochemical energy.
Investigation of Graded La[sub 2]NiO[sub 4+δ] Cathodes to Improve SOFC Electrochemical Performance (2010)

01.07.14 KB. Author sent accepted version, ok to upload. 27.06.14 KB re-sent email to author for accepted version 18.02.14 KB. Ok to add accepted version to spiral, ESC has granted permission. Awaiting author to send accepted version
Reaction Moulding of Metal and Ceramic Powders (1996)

A processing route for fabrication of products from hard metal and ceramic powders is described in which a reactive monomer such as ethylcyanoacrylate is used as carrier and binder with the opportunity of recovery through thermal depolymerization. A feasibility study has examined some of the main technical points including monomer–powder reactivity and rheology, debinding rates and compact green density. The stability of ethylcyanoacrylate with various powder volume fractions of silicon nitride and 316L stainless steel has been examined, with p-toluenesulphonic acid used as polymerization inhibitor, and it was found that mixes with higher powder volume fractions required higher levels of inhibitor. Assessment of the flow behaviour of several of the compositions showed them to be significantly non-Newtonian and the high viscosity of blends with a high loading of stainless steel suggests some premature polymerization. Measurement of green density of polymerized compacts demonstrated that high packing efficiency could be achieved. Thermogravimetry showed that rates of binder loss depended upon sample size and powder thermal conductivity.
Three-Dimensional Biochemical Patterning of Click-Based Composite Hydrogels via Thiolene Photopolymerization (2008)

Hydrogels formed from (meth)acrylated poly(ethylene glycol) precursors are commonly used in a variety of biomedical applications ranging from tissue engineering to biosensors. While this approach has proven quite diverse, a major limitation to this approach is the heterogeneities and nonidealities that arise in the gels from the chain polymerization process, which increases the difficulty in relating the network structure to the final physical properties of the gel. Here we have exploited the specificity and fidelity of the [3+2] cycloaddition reaction to synthesize hydrogels with controlled architectures and improved mechanical properties. Moreover, we demonstrate a general approach toward the integration of multifunctional photoreactive polypeptide sequences into the network structure that provides a facile way to independently tune the 3D chemical and physical properties of the gel. Standard photolithographic techniques were used to generate a variety of two- and three-dimensional patterns as well as controlled biochemical gradients within existing preformed hydrogels.
Fracture of Si <sub>3</sub> N <sub>4</sub> –SiC Whisker Composites under Cyclic Loads (1988)

This communication demonstrates the role of cyclic compressive loads in inducing mode I fatigue crack growth at room temperature in Si 3 N 4 matrix–SiC whisker composite materials containing stress concentrations. The characteristics of stable, cyclic fracture are examined for several volume fractions of the SiC whisker and are compared with those of the matrix material. It is found that the composites with higher volume fractions of SiC whiskers exhibit an inferior resistance to fracture under cyclic compressive loads despite improvements in fracture toughness values.
Four Types of Streptococcus mutans Based on Their Genetic, Antigenic and Biochemical Characteristics (1974)

Summary: Eighteen cariogenic streptococcal strains identified as members of Streptococcus mutans (Clarke, 1924) were compared on the basis of biochemical tests, mannitol-1-phosphate dehydrogenases, DNA base compositions and DNA base sequence homologies. Some slight biochemical differences were found which correlated with the large differences in DNA base composition and sequence heterology which exist among these strains. All strains could be assigned to one of four groups based on these biochemical and genetic differences. Furthermore, these four groups correlated with four serological groups described by Bratthall (1970). It is proposed to divide S. mutans into four subspecies: S. mutans subsp. mutans, the type subspecies, has a guanine-cytosine (G-C) of 36 to 38 mol % and belongs to Bratthall serological group c; S. mutans subsp. rattus subsp. nov. has 41 to 43 mol % G-C, belongs to Bratthall group b, and can be distinguished from the other subspecies by its production of ammonia from arginine; S. mutans subsp. cricetus subsp. nov. has 42 to 44 mol % G-C, belongs to Bratthall group a, and can be distinguished by its lack of growth in air; S. mutans subsp. sobrinus subsp. nov. has 44 to 46 mol % G-C, belongs to Bratthall group d, and can be distinguished by its failure to ferment raffinose.
Hematopoietic stem cell and marrow stromal cell for spinal cord injury in mice (2005)

We compared the effects of hematopoietic stem cell and marrow stromal cell transplantation for spinal cord injury in mice. From green fluorescent protein transgenic mouse bone marrow, lineage-negative, c-kit- and Sca-1-positive cells were sorted as hematopoietic stem cells and plastic-adherent cells were cultured as marrow stromal cells. One week after injury, hematopoietic stem cells or marrow stromal cells were injected into the lesioned site. Functional recovery was assessed and immunohistochemistry was performed. In the hematopoietic stem cell group, a portion of green fluorescent protein-positive cells expressed glial marker. In the marrow stem cell group, a number of green fluorescent protein and fibronectin-double positive cells were observed. No significant difference was observed in the recovery between both groups. Both hematopoietic stem cells and marrow stromal cells have the potential to restore the injured spinal cord and to promote functional recovery.
Ni silicide and germanide technology for contacts and metal gates in MOSFET applications (2006)

In this study, we report Ni silicide and germanide technology for ohmic contacts and metal gates in MOSFET applications. We have systematically investigated the crystalline structures and the electrical properties of NiSi and Ni(Si <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">1-alpha</sub> Ge; <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">alpha</sub> ) layers formed on Si and Si <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">1-x-y</sub> Ge <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">x</sub> C <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">y</sub> , respectively. We have also characterized Ni germanides for metal gates with various metal-germanium composition ratios
Heart rate variability during sleep stages in normals and in patients with sleep apnea. (2000)

Heart rate and heart rate variability are under the control of the autonomous nervous system. It can be assumed that during sleep internal influences dominate the autonomous nervous system. During the different sleep stages heart rate regulation differs in normal subjects. Obstructive sleep apnea is a disorder which has its origin in sleep and has strong modulating effects on the autonomous nervous system with prominent heart rate variations in consequence. In order to separate the influences of sleep stages and sleep apnea on heart rate variability we applied detrended fluctuation analysis in 12 healthy subjects and 20 patients with sleep apnea. We could show that the differences between sleep stages observed in healthy subjects were still present in subjects with sleep apnea despite their cyclical variation in heart rate. We conclude, that detrended fluctuation analysis is able to separate the influences of sleep stages and sleep apnea on heart rate variability.
Color display system for connected speech to be used for the hearing impaired (1985)

A color display system for the hearing impaired which converts connected speech signals into color pictures on a TV screen has been developed. This paper describes the principle, the function and the performance of the system, and the visual images of the patterns displayed using the system. The system consists of a real-time formant tracker, a pitch detector, a memory system, a color coder, etc. In this system, the lowest three formant frequencies are extracted from voiced signals of connected speech by means of the formant tracker, and are converted to three primary color signals. The three primary color signals as a time pattern are represented as a spatial color pattern on the TV screen using the memory system and the color coder. In unvoiced portions, colorless and dapple patterns can be seen. The reproduced Pattern using this system is not only beautiful, but also easy to understand intuitively. Especially, the visual experiments show that simultaneous contrast effect of colors caused by the spatial representation visually compensates for coarticulation effect on connected vowels.
Supramolecular Materials: Molecular Packing of Tetranitrotetrapropoxycalix[4]arene in Highly Stable Films with Second-Order Nonlinear Optical Properties (1998)

Crystallization in an electric field leads to highly stable films of tetranitrotetrapropoxycalix[4]arene (shown on the right) with second-order nonlinear optical properties. The ordered noncentrosymmetric packing of the molecules in these films was elucidated by a combination of X-ray diffraction, angle-dependent second-harmonic generation, and atomic force microscopy, and confirmed by solid-state molecular dynamics calculations.