gebhart/patrepeval huggingface dataset:
Avoiding negative depth in inverse depth bearing-only SLAM (2008)

In this paper we consider ways to alleviate negative estimated depth for the inverse depth parameterisation of bearing-only SLAM. This problem, which can arise even if the beacons are far from the platform, can cause catastrophic failure of the filter.We consider three strategies to overcome this difficulty: applying inequality constraints, the use of truncated second order filters, and a reparameterisation using the negative logarithm of depth. We show that both a simple inequality method and the use of truncated second order filters are successful. However, the most robust performance is achieved using the negative log parameterisation.
Lower limits of cerebrovascular permeability to nonelectrolytes in the conscious rat (1978)

I&c*. 2hyCL $3): H299-~3~1j 1978. -Vascular permeability P in different cerebral regions of the conscious rat was determined, independently of blood flow, for "C tracers of glycerol, mannitol, sucrose, and inulin. A tracer was injected intravenously, arterial plasma concentrations were monitored, and regional brain concentrations were measured at specific times thereafter.
Multiple description subband coding (2002)

Multiple description coding (MDC) is a technique used to obtain two or more (often correlated) descriptions of a source, which are transmitted over different channels to the receiver. These descriptions of the source support two levels of reconstruction quality. When all the descriptions are received and used in the reconstruction, the source can be reconstructed with high fidelity. When only a subset of the descriptions is received, the quality of reconstruction should still be acceptable. In this work, we introduce MDC (with two descriptions) in the context of classification based subband coding. We develop an efficient MDC scheme using multiple description scalar quantizers and present a greedy algorithm to allocate rates and redundancies among the classified subbands.
.BETA.-Hydroxy-.DELTA.-lactones as chiral building blocks involving 1,3-dihydroxyl functions. 1. New strategies for stereoselective construction of 2-methyl-3,5-dihydroxy esters. (1990)

Four possible isomers of 2-methyl-3, 5-dihydroxy ester derivatives, useful building blocks for natural product synthesis, were synthesized stereoselectively using C3-hydroxyl-directed methylation of β-hydroxy-δ-lactone and β, δ-dihydroxy ester.
Infrastructure based Authentication in VANETs (2012)

In a vehicular ad-hoc networks (VANETs), the veracity of a message requires authentication of the source vehicle. In this work, a technique for mutual authentication of a vehicle and road side unit (RSU) that preserves the privacy of the vehicle is proposed. The technique relies on the traffic authorities and assumes a hierarchical structure comprising a central trusted authority (TA) with state level trusted authorities (STA) and city level trusted authorities (CTA). Vehicles and RSU have public- private key pairs and each vehicle- CTA and RSU – CTA share a symmetric key. An RSU can be malicious and a vehicle can be malicious and a vehicle can communicate with a CTA only via an RSU and vice-versa. This requires message exchange in the RSU mediated communication between vehicles and CTAs to be confidential. The process is bandwidth efficient and needs only one request-reply message pair between vehicle and the (RSU- CTA-STA-TA) infrastructure. The time taken is in the order of milliseconds which constitutes only a small portion of the stay time of a vehicle within an RSU region. Keywords: Mutual authentication, public-private key, VANETs, Vehicles, Road Side Units. 1.
ELECTRICAL CONDUCTIVITY AND ELECTROMAGNETIC SHIELDING EFFECTIVENESS OF SILICONE RUBBER FILLED WITH FERRITE AND GRAPHITE POWDERS (2011)

There is increasing interest in electromagnetic interference (EMI) shielding due to the serious electromagnetic environment pollution caused by the continuously increased use of the electrical products and electronic devices. Electrical conductivity and EMI shielding efiectiveness (SE) of composite materials made from silicone rubber with carbon powder and ferrite powder have been studied in microwaves and terahertz frequency ranges and the results are presented in this paper. In microwaves range, samples with higher electrical conductivity show a small variation of shielding performance with frequency, whereas the performance of samples with lower conductivity falls away with increasing frequency. It is shown that the variation of attenuation with frequency relates to the conductivity of the material.
Simulation-Ready Hair Capture (2017)

Physical simulation has long been the approach of choice for generating realistic hair animations in CG. A constant drawback of simulation, however, is the necessity to manually set the physical parameters of the simulation model in order to get the desired dynamic behavior. To alleviate this, researchers have begun to explore methods for reconstructing hair from the real world and even to estimate the corresponding simulation parameters through the process of inversion. So far, however, these methods have had limited applicability, because dynamic hair capture can only be played back without the ability to edit, and solving for simulation parameters can only be accomplished for static hairstyles, ignoring the dynamic behavior. We present the first method for capturing dynamic hair and automatically determining the physical properties for simulating the observed hairstyle in motion. Since our dynamic inversion is agnostic to the simulation model, the proposed method applies to virtually any hair simulation technique, which we demonstrate using two state-of-the-art hair simulation models. The output of our method is a fully simulation-ready hairstyle, consisting of both the static hair geometry as well as its physical properties. The hairstyle can be easily edited by adding additional external forces, changing the head motion, or re-simulating in completely different environments, all while remaining faithful to the captured hairstyle.
The Preparation and Properties of Some Chloromethylchlorosilanes (1945)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Preparation and Properties of Some ChloromethylchlorosilanesR. H. Krieble and J. R. ElliottCite this: J. Am. Chem. Soc. 1945, 67, 10, 1810–1812Publication Date (Print):October 1, 1945Publication History Published online1 May 2002Published inissue 1 October 1945https://pubs.acs.org/doi/10.1021/ja01226a057https://doi.org/10.1021/ja01226a057research-articleACS PublicationsRequest reuse permissionsArticle Views304Altmetric-Citations62LEARN 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
Spritzgießen nanoskaliger keramischer Pulver am Beispiel des Degussa Aluminiumoxid C (1999)

Das Spritzgießen nanoskaliger keramischer Pulver würde die Möglichkeit eröffnen, feine und komplexe Strukturen endkonturnah zu fertigen. In dieser Arbeit wird anhand eines Modellpulvers (Degussa Aluminiumoxid C) mit einer spezifischen Oberflächen von 97m2/g gezeigt, dass es möglich ist, ein nanoskaliges Pulver spritzzugießen, die Formteile zu entbindern und anschließend zu sintern. Aufbauend auf der Charakterisierung der Pulveroberfläche wurde ein Bindersystem entwickelt, das eine geringe Viskosität des mit 47Vol.- Feststoffgehalt beladenen Spritzgußversatzes sichert. Durch Extraktion in kondensierendem Octandampf wurden die spritzgegossenen Probestäbe (80 x 20 x 2,5 mm) binnen 60 Minuten entbindert. Hierbei wurde eine Extraktionsrate von 0,156 mm/h erreicht. Die entbinderten Proben wurden anschließend bei 1700°C zu einer Dichte von 92TDa gesintert. Durch Zugabe von alpha-Al2O3-Keimen zum Spritzgußversatz ist es möglich, die Sinterdichte bei 1700°C auf 97TDa zu erhöhen. Aufbauend auf diesen Ergebnissen sind Entwicklungen bis hin zum Mikrospritzguß denkbar.
Feedback-based error control for mobile video transmission (1999)

We review feedback-based low bit-rate video coding techniques for robust transmission in mobile multimedia networks. For error control on the source coding level, each decoder has to make provisions for error detection, resynchronization, and error concealment, and we review techniques suitable for that purpose. Further, techniques are discussed for intelligent processing of acknowledgment information by the coding control to adapt the source coder to the channel. We review and compare error tracking, error confinement, and reference picture selection techniques for channel-adaptive source coding. For comparison of these techniques, a system for transmitting low bit-rate video over a wireless channel is presented and the performance is evaluated for a range of transmission conditions. We also show how feedback-based source coding can be employed in conjunction with precompressed video stored on a media server. The techniques discussed are applicable to a wide variety of interframe video schemes, including various video coding standards. Several of the techniques have been incorporated into the H.263 video compression standard, and this standard is used as an example throughout.
Novel Printing------Using Polymeric Gel as Ink (1989)

Novel printing ink has been developed based on polymeric gel having the nature of gel to sol transition caused by application of electric voltage. The polymeric gel ink consisted of polyvinyl alcohol) (PVA) partially crosslinked with borax, carbon black as a pigment, and water. Printing facilities was also designed. Polymeric gel ink with electric conductivity 4.0 x 10<sup>-3</sup> Ω<sup>-1</sup>cm<sup>-1</sup> was used. It could offer resolution of more than 200 dots per inch (dpi). Image density was fully controlled from 0.05 to 1.5 as optical density by application of electric voltage of 3 - 12 V. An advantage of this printing system was that polymeric gel ink not only acted as ink but also as the support.
Thermodynamic modeling of the Cu–Se system (2008)

Abstract The Cu – Se system was modeled by means of the CALPHAD technique. Considering two miscibility gaps of the liquid existed on each side of the compound Cu 2 Se, the associate model with the associate species “Cu 2 Se” was adopted to describe the Gibbs energy for the liquid and compared to the random solution model. The optimizing results showed that the thermodynamic model describing the liquid phase as a solution of Cu, Se and a “Cu 2 Se” associate fits well with the experimental data. The intermetallic compounds, Cu 3 Se 2 , α-CuSe, β-CuSe, γ-CuSe and CuSe 2 were treated as stoichiometric compounds. The com-pounds α-Cu 2 Se and β-Cu 2 Se, which have a homogeneity range, were treated as the formulae α-(Cu, Se) 2 Se and β-(Cu, Se) 2 Se by a two-sublattice model. A set of self-consistent thermodynamic parameters of the Cu – Se system was obtained.
Antigen mimicry, epitope spreading and the pathogenesis of pemphigus (2006)

The molecular and cellular pathogenesis of pemphigus remains unclear. However, the integrity of intraepidermal and dermoepidermal adhesion appears to be of special importance, and the presence of antibodies directed against desmosomal plaque proteins can provoke pemphigus-like pathologies. Antibodies reactive with various tissue antigens have been detected in pemphigus-like skin conditions. Two major factors determining the occurrence of different pemphigus subforms are antigen mimicry and epitope spreading, as these two phenomena underpin antibody generation in response to different antigens. This multiplicity of target antigens and antibody responses may lead to diagnostic problems early in the disease and may also explain the apparent transformation of one disease subform into another as time progresses.
Effective Dysphonia Detection Using Feature Dimension Reduction and Kernel Density Estimation for Patients with Parkinson’s Disease (2014)

Detection of dysphonia is useful for monitoring the progression of phonatory impairment for patients with Parkinson's disease (PD), and also helps assess the disease severity. This paper describes the statistical pattern analysis methods to study different vocal measurements of sustained phonations. The feature dimension reduction procedure was implemented by using the sequential forward selection (SFS) and kernel principal component analysis (KPCA) methods. Four selected vocal measures were projected by the KPCA onto the bivariate feature space, in which the class-conditional feature densities can be approximated with the nonparametric kernel density estimation technique. In the vocal pattern classification experiments, Fisher's linear discriminant analysis (FLDA) was applied to perform the linear classification of voice records for healthy control subjects and PD patients, and the maximum a posteriori (MAP) decision rule and support vector machine (SVM) with radial basis function kernels were employed for the nonlinear classification tasks. Based on the KPCA-mapped feature densities, the MAP classifier successfully distinguished 91.8% voice records, with a sensitivity rate of 0.986, a specificity rate of 0.708, and an area value of 0.94 under the receiver operating characteristic (ROC) curve. The diagnostic performance provided by the MAP classifier was superior to those of the FLDA and SVM classifiers. In addition, the classification results indicated that gender is insensitive to dysphonia detection, and the sustained phonations of PD patients with minimal functional disability are more difficult to be correctly identified.
Cantilever-Based Optical Deflection Assay for Discrimination of DNA Single-Nucleotide Mismatches (2001)

Characterization of single-nucleotide polymorphisms is a major focus of current genomics research. We demonstrate the discrimination of DNA mismatches using an elegantly simple microcantilever-based optical deflection assay, without the need for external labeling. Gold-coated silicon AFM cantilevers were functionalized with thiolated 20- or 25-mer probe DNA oligonucleotides and exposed to target oligonucleotides of varying sequence in static and flow conditions. Hybridization of 10-mer complementary target oligonucleotides resulted in net positive deflection, while hybridization with targets containing one or two internal mismatches resulted in net negative deflection. Mismatched targets produced a stable and measurable signal when only a four-base pair stretch was complementary to the probe sequence. This technique is readily adaptable to a high-throughput array format and provides a distinct positive/negative signal for easy interpretation of oligonucleotide hybridization.
Association of Breast Cancer Stem Cells Identified by Aldehyde Dehydrogenase 1 Expression with Resistance to Sequential Paclitaxel and Epirubicin-Based Chemotherapy for Breast Cancers (2009)

Our findings suggest that breast cancer stem cells identified as ALDH1-positive, but not CD44(+)/CD24(-), play a significant role in resistance to chemotherapy. ALDH1-positive thus seems to be a more significantly predictive marker than CD44(+)/CD24(-) for the identification of breast cancer stem cells in terms of resistance to chemotherapy.
Customized Mycophenolate Dosing Based on Measuring Inosine-Monophosphate Dehydrogenase Activity Significantly Improves Patients' Outcomes After Renal Transplantation (2010)

The data suggest that measuring biologic response may be a more valuable indicator than traditional therapeutic drug monitoring of MPA. Patients at risk for rejection could be earlier identified, and the therapeutic potential of MPA will be optimized.
Géométrie multi-échelles pour les images et les textures (2005)

The geometry of images is multiscale, because edges of natural images are often blurry and textures contain a broad range of geometric structures.<br>This geometry can be constructed directly over a multiscale domain and corresponds to a grouping process of wavelet coefficients. The resulting adaptive representations are discrete, orthogonal and allow a multiscale description of the geometric content of an image.<br>This leads to the construction of orthogonal bandelet bases, for which the grouping process is locally defined using a best orientation. These orthogonal bases improve over state of the art schemes for images and surfaces compression and for the inversion of the tomography operator.<br>In order to understand and model the complex geometry of turbulent textures, we design an association field that is able to capture long range interactions. This allows a statistical modelling of the geometry of natural textures. We apply this construction to geometric texture synthesis.
Autophagy-associated dengue vesicles promote viral transmission avoiding antibody neutralization (2016)

One of the major defense mechanisms against virus spread in vivo is the blocking of viral infectibility by neutralizing antibodies. We describe here the identification of infectious autophagy-associated dengue vesicles released from infected cells. These vesicles contain viral proteins E, NS1, prM/M, and viral RNA, as well as host lipid droplets and LC3-II, an autophagy marker. The viral RNA can be protected within the autophagic organelles since anti-dengue neutralizing antibodies do not have an effect on the vesicle-mediated transmission that is able to initiate a new round of infection in target cells. Importantly, such infectious vesicles were also detected in a patient serum. Our study suggests that autophagy machinery plays a new role in dengue virus transmission. This discovery explains the inefficiency of neutralizing antibody upon dengue infection as a potential immune evasion mechanism in vivo.
An AC-to-DC Converter with Improved Input Power Factor and High Power Density (1986)

A novel single-phase switch-mode rectifier (SMR) structure is proposed and analyzed. The proposed converter structure employs a synchronous front-end rectifier (SFER) stage which provides high-quality input characteristics with small input filtering. Consequently the proposed converter structure exhibits high power density and has low implementation cost.
Broadband tuning of external cavity bound-to-continuum quantum-cascade lasers (2004)

A quantum-cascade structure based on a bound-to-continuum design exhibiting a broad gain curve is presented. The full width at half maximum of the measured luminescence spectrum is 297 cm−1 at room temperature. Grating-coupled external cavity lasers using this active region could be tuned over 150 cm−1 (1.45 μm), which is equal to 15% of the free running wavelength (λ≅10 μm), in pulsed mode at room temperature. Time resolved spectra showed a single-mode operation with a 30 dB side mode suppression ratio after the first 12 ns of the pulse.
Continuous growth of mean tumor diameter in a subset of grade II gliomas (2003)

Serial magnetic resonance images of 27 patients with untreated World Health Organization grade II oligodendrogliomas or mixed gliomas were reviewed retrospectively to study the kinetics of tumor growth before anaplastic transformation. Analysis of the mean tumor diameters over time showed constant growth. Linear regression, using a mixed model, found an average slope of 4.1mm per year (95% confidence interval, 3.8-4.4mm/year). Untreated low-grade oligodendrogliomas or mixed gliomas grow continuously during their premalignant phase, and their pattern of growth can be predicted within a relatively narrow range. These findings could be of interest to optimize patients management and follow-up.
Agile development of the database: a focal entity prototyping approach (2006)

The agile development of the database and the application system is a highly productive and successful activity when undertaken in a coherent and organized manner. Agility does not preclude structure and order in development. The more serial thinking that the entire database schema must be developed once and for all, and before any processing development can take place, is seen to be incorrect and unnecessary. The evolution of the database, like other aspects of evolutionary and agile development of software systems, contributes significantly to schema quality, correctness and adaptability. Research and experience in both commercial development and in an academic project environment over 20 years has demonstrated the reasonableness and efficacy of this approach, and this paper elaborates upon a well ordered and well-organized, but clearly agile approach, to database development, which the author has termed "focal entity prototyping".
Ontologies, contexts, and mediation : representing and reasoning about semantics conflicts in heterogeneous and autonomous systems (1995)

HD28 .M414 no.3848-95,
A scheme for the identification of viridans streptococci (1991)

A collection of strains representing all the currently recognised species of oral or viridans streptococci (Streptococcus sanguis, S. parasanguis, S. gordonii, S. oralis, S. mitis, S. salivarius, S. vestibularis, S. anginosus, S. constellatus, s. intermedius, S. mutans and S. sobrinus) were tested for the production of a range of glycosidase activities with 4-methylumbelliferyl-linked fluorogenic substrates, and for reactions in a range of conventional fermentation and hydrolytic tests. The resulting biochemical scheme, consisting of 14 tests, enabled the differentiation of all these species and distinguished three biotypes within S. sanguis. The scheme reported here represents an improvement over currently available schemes for the identification of viridans streptococci.
Cryotherapy Versus Podophyllin in the Treatment of Genital Warts (1985)

572 patients with solitary or multiple genital warts attending the Department of Genitourinary Medicine at the Royal Victoria Hospital, Bournemouth, U.K. between January 1981 and December 1981 were allocated to either podophyllin or cryotherapy for the treatment of their warts. Of 350 patients successfully treated for their warts and returned for a follow-up examination 6 weeks or more after completing their treatment, 206 (139 men and 67 women) were treated with podophyllin, and 144 (86 men and 58 women) with cryotherapy. One hundred five (51%) of those treated with podophyllin and 114 (79%) treated with cryotherapy were free of warts at their follow-up examination. Patients treated with podophyllin required a mean of 6.7 +/- SD 3.5 treatments over a mean of 4.7 +/- SD 2.4 weeks, whereas those receiving cryotherapy required a mean of 2.6 +/- SD 2.0 applications over a mean of 2.3 +/- SD 1.2 weeks.