gebhart/patrepeval huggingface dataset:
Single Sign on for Cloud (2012)

In this paper, we have designed single sign on for cloud users. The proposed design allows user to use single set of credentials, even a user maintains with different kinds of cloud environments. We propose a solution with defacto standards of open authorization in which there is a trust party auditor which maintains all the credentials and cloud provider can uniquely distinguish one user from other. We also maintain secure channel for user in order to ensure the confidentiality.
Turbistan, a standard load sequence for aircraft engine discs (1985)

The development of TURBISTAN is a joint international effort to derive a loading standard representative for fighter aircraft engine disc usage. A representative loading standard offers considerable potential advantages over the present zero-max type of loading used for disc material evaluation. This is because the standard incorporates the effects of subcycles, their number, magnitude and sequence, which are known to seriously affect disc life and for which current life prediction techniques only partly account. Therefore usage of the standard in fatigue tests provides an improved evaluation of material properties, structural details, fabrication techniques, surface quality and life prediction.
The present paper describes the compilation of operational flight data, their analysis and the generation of a preliminary TURBISTAN sequence for cold compressor discs. The sequence contains about 8000 cycles which represent 100 flights. In addition the paper de.scribes the background and philosophy of a material testing programme meant to assess the effectiveness of the standard and to explore the validity of the assumptions made in its derivation.
Effect of cryoprotection on particle size stability and preservation of chitosan nanoparticles with and without hyaluronate or alginate coating (2017)

The aim of the present study was to determine the effect of different cryoprotectants and their concentration on the physicochemical characteristics of chitosan nanoparticles (CS-NPs). The effect of coating of CS-NPs with hyaluronic acid (HA) and alginic acid (ALG) before and after lyophilization was also evaluated. The ionic gelation method was used for the preparation of NPs and six different types of cryoprotectants (sucrose, glucose, trehalose, mannitol, polyethylene glycol-2000, and polyethylene glycol-10,000) were investigated at 5%, 10%, 20%, and 50% concentration levels. Coating of CS-NPs with HA and their protection with high amount of cryoprotectants indicated better particle size stability. Samples that were lyophilized without cryoprotectants resulted in an increase in average size due to high agglomeration. All cryoprotectants with varying amount provided some sort of size stability for the NPs except for the PEG-10,000 which had no protective effect at higher concentrations. Sucrose and trehalose sugars were found to have the highest protective effect with HA coated and uncoated CS-NPs. In conclusion, using cryoprotectants along with surface coating, the CS-NPs could achieve the desired physicochemical characteristics for a prolonged duration.
Speckle reduction in optical coherence tomography using angular compounding by B-scan Doppler-shift encoding (2009)

We propose a novel method for speckle reduction for optical coherence tomography based on angular compounding by B-scan Doppler-shift encoding (AngularCBD). By decentering the probe beam from the pivot of a scanning mirror, the illumination angle represented by different components of the beam can be encoded in Doppler shift. Compounding multiple images reconstructed from different Doppler-shift bands, we can suppress speckle without sacrificing image acquisition speed. Speckle reduction with AngularCBD is demonstrated by imaging a phantom and tissue sample in vitro and in vivo.
Early Myocardial Fibrosis is Associated with Depletion of Vasoactive Intestinal Peptide in Rat Heart (2002)

In this study we sought to determine whether early myocardial fibrosis is associated with depletion of vasoactive intestinal peptide (VIP) in the heart, thereby suggesting a possible pathogenetic role for depletion of myocardial VIP levels in the development of fibrosis in the heart. Spontaneously hypertensive rats (SHRs) and normotensive control Wistar-Kyoto rats (WKYs) were assigned randomly to low, intermediate or high sodium diets and their blood pressure was recorded twice weekly for 4 weeks. At the end of this period the rats were anaesthetised, blood was sampled for plasma VIP concentration and the hearts were harvested for histology and determination of the concentration of VIP in the heart. The degree of myocardial fibrosis increased with increasing dietary sodium intake in both the WKYs (P < 0.001) and the SHRs (P < 0.01). Myocardial VIP concentration decreased with increasing dietary sodium intake in the WKYs (P < 0.01) and in the SHRs (P < 0.01). There was a negative correlation between myocardial VIP concentration and the degree of myocardial fibrosis in both the WKYs (P < 0.0005) and the SHRs (P < 0.005). Dietary sodium intake induces myocardial fibrosis in a dose-dependent manner. Further, in early myocardial fibrosis resulting from increasing dietary sodium intake in both normotensive and hypertensive rats the concentration of VIP in the heart was negatively correlated with the degree of fibrosis. This suggests a possible role for depletion of VIP in the myocardium in the pathogenesis of myocardial fibrosis.
Rapid method for purification of CD56<sup>+</sup> natural killer cells with preferential enrichment of the CD56<sup>bright+</sup> subset (1994)

Abstract A rapid method for the purification of CD56 + natural killer (NK) cells with the preferential enrichment of the CD56 bright+ subset is described. The method is based on the adsorption of CD56 + cells indirectly stained with a biotinylated antibody on an avidin‐coated column. The adsorbed CD56 + cells can then be squeezed out mechanically without damaging the viability or the function of the cells. Starting from peripheral mononuclear cells from adult donors, the recovery of the CD56 + cells was 11.9 ± 9.0% (n = 8), the purity 93.0 ± 4.9% (n = 10), and the enrichment factor 7.5 ± 1.7 (n = 8). Further phenotypic classification of the CD56 + cells into CD56 dim+ and CD56 bright+ cells showed a preferential enrichment of the CD56 bright+ phenotype with a recovery of 40.5 ± 19.6% (n = 8), a purity of 30.3 ± 13.2% (n = 8), and an enrichment factor of 29.8 ± 7.2 (n = 8). In conclusion, the described method allows the rapid purification of CD56 + NK cells with the preferential enrichment of the CD56 bright+ subset. © 1994 Wiley‐Liss, Inc.
J-MOD<sup>2</sup>: Joint Monocular Obstacle Detection and Depth Estimation (2018)

In this letter, we propose an end-to-end deep architecture that jointly learns to detect obstacles and estimate their depth for MAV flight applications. Most of the existing approaches rely either on Visual simultaneous localization and mapping (SLAM) systems or on depth estimation models to build three-dimensional maps and detect obstacles. However, for the task of avoiding obstacles this level of complexity is not required. Recent works have proposed multitask at its first ocurrence in the text."?> architectures to perform both scene understanding and depth estimation. We follow their path and propose a specific architecture to jointly estimate depth and obstacles, without the need to compute a global map, but maintaining compatibility with a global SLAM system if needed. The network architecture is devised to jointly exploit the information learned from the obstacle detection task, which produces reliable bounding boxes, and the depth estimation one, increasing the robustness of both to scenario changes. We call this architecture J-MOD <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> . We test the effectiveness of our approach with experiments on sequences with different appearance and focal lengths and compare it to SotA multitask methods that perform both semantic segmentation and depth estimation. In addition, we show the integration in a full system using a set of simulated navigation experiments, where a micro aerial vehicle explores an unknown scenario and plans safe trajectories by using our detection model.
Feature prediction and model updating based on filter banks (2013)

To reflect the changes of targets appearance during the tracking procedure, a model updating algorithm based on particle filter banks is proposed. Each eigenvalue of the feature histogram is assigned with a single particle filter, which compose a filter banks. According to the posterior probability model and the observation, the residual error is used to adjust the transmission radius, and the effective particle index is introduced to ensure the diversity of particles. According to the coefficients and the average residual, two criterions are established to overcome the drastic changes in the model updating. With the updating algorithm, the proposed tracker achieves better performance then the fixed model tracker in the presence of scale changes and partial occlusions.
An Empirical Study on the Regional Disparity of the Development of Vegetable Industry in China ——Based on the Cluster Analysis (2013)

Since the Chinese government implemented the basket project, the Chinese vegetable industry has made considerable development. Vegetable planting area and total output have increased rapidly. The diversified vegetable production bases have formed and act as an important role in the marketing. However, there is regional disparity existing among the Chinese vegetable production area. Based on the cluster analysis method, the paper researched the vegetable production development level of 31 provinces and cities in China. The research found that the 31 provinces and cities in China can be divided into 6 clusters and the sample provinces intra-cluster groups have the similar characteristics, on the contrary the sample provinces inter-cluster groups have the differences. Shandong province is the leading area of Chinese vegetable production, with significant production advantages. The policy suggestions have been recommended to promote the development of China’s vegetable industry.
Enrichment of prostate cancer stem cells from primary prostate cancer cultures of biopsy samples. (2014)

This study was to enrich prostate cancer stem cells (PrCSC) from primary prostate cancer cultures (PPrCC). Primary prostate cancer cells were amplified in keratinocyte serum-free medium with epidermal growth factor (EGF) and bovine pituitary extract (BPE), supplemented with leukemia inhibitory factor (LIF), stem cell factor (SCF) and cholera toxin. After amplification, cells were transferred into ultra-low attachment dishes with serum-free DMEM/F12 medium, supplemented with EGF, basic fibroblast growth factor (bFGF), bovine serum albumin (BSA), insulin, and N2 nutrition. Expression of cell-type-specific markers was determined by RT-qPCR and immunostaining. Tumorigenicity of enriched PrCSC was determined by soft agar assay and xenograft assay in NOD/SCID mice. Biopsy samples from 19 confirmed prostate cancer patients were used for establishing PPrCC, and 18 cases (95%) succeeded. Both basal marker (CK5) and luminal markers (androgen receptor and CK8) strongly co-expressed in most of PPrCC, indicating their basal epithelial origin. After amplification under adherent culture condition in vitro, transient amplifying cells were the dominant cells. Sphere formation efficiency (SFE) of passaged PPrCC was about 0.5%, which was 27 times lower than SFE of LNCaP (13.67%) in the same condition. Compared with adherent cells from PPrCC, prostasphere from PPrCC showed up regulated stem cell markers and increased tumorigenic potential in soft-agar assay. However, spheroid cells from PPrCC prostasphere failed to initiate tumor in xenograft assay in 6 months. Thus, PPrCC can be established and amplified from prostate cancer biopsy samples. Our modified sphere culture system can enrich PrCSC from PPrCC.
Towards a Theory of Volatility Trading (2010)

Much research has been directed towards forecasting the volatility of various macroeconomic variables such as stock indices, interest rates and exchange rates. However, comparatively little research has been directed towards the optimal way to invest given a view on volatility. This absence is probably due to the belief that volatility is difficult to trade. For this reason, a small literature has emerged which advocates the development of volatility indices and the listing of financial products whose payoff is tied to these indices. For example, Gastineau (1977) and Galai (1979) propose the development of option indices similar in concept to stock indices. Brenner and Galai (1989) propose the development of realized volatility indices and the development of futures and optionscontracts on these indices. Similarly, Fleming, Ostdiek and Whaley (1993) describe the construction of an implied volatility index (the VIX), while Whaley (1993) proposes derivative contracts written on this index. Brenner and Galai (1993, 1996) develop a valuation model for options on volatility using a binomial process, while Grunbichler and Longstaff (1993) instead assume a mean reverting process in continuous time.
Physical properties of spray deposited CdTe thin films: PEC performance (2011)

p-CdTe thin films were prepared by spray pyrolysis under different ambient conditions and characterized using photoelectrochemical (PEC), X-ray diffraction (XRD), scanning electron microscopy, energy-dispersive analysis by X-ray (EDAX), and optical transmission studies. The different preparative parameters viz solution pH, solution quantity, substrate temperature and solution concentration have been optimized by the PEC technique in order to get good-quality photosensitive material. XRD analysis shows the polycrystalline nature of the film, having cubic structure with strong (111) orientation. Micrographs reveal that grains are uniformly distributed over the surface of the substrate indicating the well-defined growth of polycrystalline CdTe thin film. The EDAX study for the sample deposited at optimized preparative parameters shows the nearly stoichiometric Cd : Te ratio. Optical absorption shows the presence of direct transition with band gap energy of 1.5 eV Deposited films exhibit the highest photocurrent of 2.3 mA, a photovoltage of 462 mV, a 0.48 fill factor and 3.4% efficiency for the optimized preparative parameters.
DEATH AND LAMENTATION IN CHRÉTIEN DE TROYES'S ROMANCES: THE DIALECTIC OF RHETORIC AND REASON (1987)

DEATH AND LAMENTATION IN CHRÉTIEN DE TROYES'S ROMANCES: THE DIALECTIC OF RHETORIC AND REASON Get access A. R. PRESS A. R. PRESS The Queen's University of Belfast Search for other works by this author on: Oxford Academic Google Scholar Forum for Modern Language Studies, Volume XXIII, Issue 1, January 1987, Pages 11–20, https://doi.org/10.1093/fmls/XXIII.1.11 Published: 01 January 1987
Tailoring a Mixture of Search Heuristics (2009)

Abstract. Problem solvers have at their disposal many heuristics that may support effective search. The efficacy of these heuristics, however, varies with the problem class, and their mutual interactions may not be well understood. The long-term goal of our work is to learn how to select appropriately from among a large body of heuristics, and how to combine them into a weighted mixture that works well on a specific class of problems. During learning, search heuristics’ weights are used to solve a problem and then updated based on their performance. This paper proposes and demonstrates a variety of ways to gauge and adapt search performance, and shows how their application can improve subsequent search performance. 1.
PN offset planning for synchronous CDMA based fiber-optic microcellular systems (2002)

PN offset planning methods for a multi-layer synchronous CDMA network composed of macrocells and fiber-optic microcells (fomicells) are developed. In these methods, planning of macrocells and that of fomicells are independently performed. For macrocells, an existing method, which is called the cluster reuse-based method, is used. For fomicells, it is observed that precompensation of optical delay is required at each base transceiver system (BTS) supporting fomicells. Two methods for fomicell planning are proposed. One is the cluster reuse-based method and the other is the graph coloring technique. Design examples indicate that the latter is more appropriate to the fomicell environment and yields more efficient PN-offset planning than the former.
A Controlled-Type ZVS Technique Without Auxiliary Components for the Low Power DC/AC Inverter (2012)

This paper proposes a soft switching technique for dc/ac inverters, by using duty cycle and frequency modulation. Zero voltage switching (ZVS) is achieved through controlling the inductor current bidirectional in every switching cycle. This technique requires no additional resonant components and can be employed for various low power applications on conventional full-bridge and half-bridge inverter topologies. Three different current mode control schemes are derived from the basic theory of the proposed technique. They are referred to as boundary current mode (BCM), variable hysteresis current mode (VHCM), and constant hysteresis current mode (CHCM) in this paper and their advantages and disadvantages are compared. Simulation and experimental results demonstrate the feasibilities of the proposed soft-switching technique and its control schemes.
Precision Airdrop System (2005)

*† ‡ The portable Precision Airdrop System (PADS) supports ground and in -flight high altitude airdrop mission planning for ballistic and autonomously guided system payloads. Precision Airdrop Planning System (PAPS) and Wind -profile Precision Aerial Deliv ery System (WindPADS) software components have been integrated and hosted on a pressure ruggedized laptop computer and are initialized and executed through a Graphical User Interface (GUI). In -flight, the PADS laptop computer is connected to a portable UH F radio receiver that is connected to one of the airdrop aircraft's bottom UHF antennae to receive real -time in -situ wind data from GPS dropsondes hand -lau nched from the airdrop aircraft. Successful initial operational PADS tests have been completed for hi gh -altitude delivery of ballistic payloads from U.S. Air Force airdrop aircraft and demonstrated significant improvement in airdrop accuracy . The integrated 802.11g wireless interface on the commercially -av ailable PADS Laptop C omputer is being developed t o communicate a Mission File to the Airborne Guidance Units (AGU) of guided systems while in the aircraft's cargo bay. Initial testing and demonstration of PADS with guided system payloads, using an earlier FreeWave wireless interface, was su ccessful. P ADS is being used to support the U.S. Department of Defense (DOD) Joint PADS (JPADS) Advanced Concept Technology Demonstration (ACTD) program for guided systems as the JPADS Mission Planner (JPADS -MP). PADS is also being deployed to support U.S. DOD high -altitude airdrop operations.
Reduction of Nasopharyngeal Carriage of<i>Streptococcus pneumoniae</i>after Administration of a 9‐Valent Pneumococcal Conjugate Vaccine to Toddlers Attending Day Care Centers (2002)

A double-blind, randomized study involving 264 toddlers attending day care centers was conducted to document the effect of a 9-valent pneumococcal conjugate vaccine on the carriage rate of pneumococci. Of 3750 cultures done on nasopharyngeal samples obtained from subjects during a 2-year follow-up period after vaccination, 65% were positive for Streptococcus pneumoniae. In all age windows, the rate of carriage of vaccine-type pneumococci was lower among subjects who received the pneumococcal vaccine than among control subjects, because the acquisition rate was lower in the former group. The effect was most pronounced among subjects aged < or =36 months. The sample size enabled us to study protection against carriage of S. pneumoniae serotypes 6B, 9V, 14, 19F, and 23F; significant protection against all serotypes except 19F was seen in the pneumococcal-vaccine group. The rate of carriage of serotype 6A (not included in the vaccine) was also reduced significantly, but the rate of carriage of serotype 19A (not included in the vaccine) was not. The rate of carriage of non-vaccine-type pneumococci (excluding serotype 6A) was higher in the pneumococcal-vaccine group than in the control group.
Leveraging Feature Uncertainty in the PnP Problem (2014)

Trabajo presentado a la 25th British Machine Vision Conference (BMVC), celebrada en Nottingham (UK) del 1 al 5 de septiembre de 2014.-- Este ítem (excepto textos e imágenes no creados por el autor) está sujeto a una licencia de Creative Commons: Attribution-NonCommercial-NoDerivs 3.0 Spain.
High Performance C/C-SIC Brake Pads (2008)

Novel modifications of melt-infiltrated carbon/carbon composites (C/C-SiC) have been developed for their use as brake pads in high performance brake systems of lifts, cranes and other transport systems. They show high thermal shock and mechanical impact resistance, low wear rates and high coefficients of friction under dynamic as well as stationary conditions. Generally, high amounts of silicon carbide increase the wear resistance and the friction coefficient, but reduce the mechanical strength of the material. Graded composites with ceramic-rich surfaces and quasi-ductile cores as well as composites with an improved transverse thermal conductivity were tested successfully. Also, C/C-SiC composites derived from process modifications with respect to shorter manufacture times and cheaper raw materials were developed and evaluated in emergency brake systems.
Alkylation of Acetaldehyde with Methanol over Titanium Oxide-supported Vanadium Oxide (1992)

Abstract Among various titanium oxide-supported vanadium oxides (V/TiO2), V(2.5 wt%)/TiO2 showed the highest catalytic activity at 350 °C in the reaction of methanol and acetaldehyde, selectively yielding propionaldehyde and isobutyraldehyde. Total alkylated products selectivity attained 83% at 76% acetaldehyde conversion.
A secured event log storage management system in cloud computing (2014)

Cloud computing is a term in computing that is used to store, maintain data in a secured manner. It provides an economical means for storing event log information in cloud at a low cost. However storing and maintaining of event log information in cloud is incredibly vital. Storing of log records to the cloud, introduces a new challenges to the user. Security and privacy plays an important role in cloud storage. The proposed system identifies the challenges using associate efficient privacy protection scheme for the log data stored within the cloud. It also satisfies the user demand on privacy requirement.
Effective band gap inhomogeneity and piezoelectric field in InGaN/GaN multiquantum well structures (1998)

The emission mechanisms of strained InxGa1−xN quantum wells (QWs) were shown to vary depending on the well thickness, L, and x. The absorption edge was modulated by the quantum confined Stark effect and quantum confined Franz-Keldysh effect (QCFK) for the wells, in which, for the first approximation, the product of the piezoelectric field, FPZ, and L exceed the valence band discontinuity, ΔEV. In this case, holes are confined in the triangular potential well formed at one side of the well producing the apparent Stokes-like shift. Under the condition that FPZ×L exceeds the conduction band discontinuity ΔEC, the electron-hole pair is confined at opposite sides of the well. The QCFK further modulated the emission energy for the wells with L greater than the three dimensional free exciton Bohr radius aB. On the other hand, effective in-plane localization of carriers in quantum disk size potential minima, which are produced by nonrandom alloy compositional fluctuation enhanced by the large bowing parameter and FPZ, produces a confined electron-hole pair whose wave functions are still overlapped (quantized excitons) provided that L&lt;aB.