gebhart/patrepeval huggingface dataset:
A 3D cylindrical PML/FDTD method for elastic waves in fluid-filled pressurized boreholes in triaxially stressed formations (2003)

Abstract A new 3D cylindrical perfectly matched layer (PML) formulation is developed for elastic wave propagation in a pressurized borehole surrounded by a triaxially stressed solid formation. The linear elastic formation is altered by overburden and tectonic stresses that cause significant changes in the wave propagation characteristics in a borehole. The 3D cylindrical problem with both radial and azimuthal heterogeneities is suitable for numerical solutions of the wave equations by finite-difference time-domain (FDTD) and pseudospectral time-domain (PSTD) methods. Compared to the previous 2.5D formulation with other absorbing boundary conditions, this 3D cylindrical PML formulation allows modeling of a borehole-conformal, full 3D description of borehole elastic waves in a stress-induced heterogeneous formation. We have developed an FDTD method using this PML as an absorbing boundary condition. In addition to the ability to solve full 3D problems, this method is found to be advantageous over the previously reported 2.5D finite-difference formulation because a borehole can now be adequately simulated with fewer grid points. Results from the new FDTD technique confirm the principle of superposition of the influence of various stress components on both the borehole monopole and dipole dispersions. In addition, we confirm that the increase in shear-wave velocity caused by a uniaxial stress applied in the propagation direction is the same as that applied parallel to the radial polarization direction.
Using interdocument similarity information in document retrieval systems (1986)

The first part of this paper reports a comparative study of the document classifications produced by the use of the single linkage, complete linkage, group average, and Ward clustering methods.Studies of cluster membership and of the effectiveness of cluster searches support previous findings that suggest that the single linkage classifications are rather different from those produced by the other three methods.These latter methods all produce large numbers of small clusters containing just pairs of documents.This finding motivates the work reported in the second part of the paper, which considers the use of clusters consisting of a document together with that document with which it is most similar.A comparison of the use of such clusters with conventional best match searches using seven document test collections suggests that the two types of search are of comparable effectiveness, but they retrieve noticeably different sets of relevant documents.
The design of a multiple inversion recovery sequence for T1 measurement (1987)

Inversion recovery has the potential to be a powerful method of determining the values of T1 in in vivo studies. However, because of its relative slowness it is not practical to undertake several experiments with different values of the interval between the magnetization inverting 180 degree pulse and the interrogating 90 degree one. The multiple inversion recovery method described here uses a series of sampling pulses, most much less than 90 degrees, to produce a series of images. It is shown that slice shape is relatively reproducible from one sample to another and that, largely as a result, the accuracy of the sequence in measuring T1 is encouraging.
Determination of Phencyclidine by Radioimmunoassay (1980)

A radioimmunoassay (RIA) was developed for measurement of phencyclidine (PCP) and its monohydroxy metabolites in urine. Anti-PCP serum was generated in rabbits and the labeled antigen was prepared by radio-iodination (125I) by the Hunter-Greenwood procedure. Adjustment of the antiserum and 125I-antigen concentrations resulted in a dynamic response from 0 to 200 ng/ml and as little as 2 ng/ml was detected. Reagents were stable for at least three months at 2 to 8 degrees C. Most (95%) urine specimens from presumed nonusers contained less than 5 ng/ml and urine specimens from suspected abusers usually exceeded 100 ng/ml. Comparison of RIA with other methods for detection of PCP showed good agreement. Cross-reactivity with other commonly prescribed drugs was not encountered. The recovery of PCP was 93 to 109% over the 20 to 175 ng/ml concentration range and the reproducibility (average coefficient of variation) was +/- 13%. Development of the RIA for PCP has resulted in a rapid procedure that can be adapted to automated processing and is also suitable for small-scale testing.
Synthesis, Structure, and Binding of Some 2-Imidazolines to Rat Brain Alfa-1 and Alfa-2-Adrenergic Receptors (2000)

A series of novel 2-[(2-aminophenyl)imino]imidazolinium salts 3a—d and N-benzyl-N-(4,5-dihydro-imidazol-2-yl)-O-methylhydroxylamine hydrochloride 7a—c were prepared and their structure was determined by IR and NMR spectroscopic data as well as X-ray analysis of the imidazolinium azide salt 3e. Binding evaluation for both α1- and α2-adrenergic receptors in rat brain preparations of these compounds and the previously described α-hydroxy-2-aryliminoimidazolines 11a—d, N-(4,5-dihydroimidazol- 2-yl)-1,3-2-oxodihydrobenzimidazoles 12a—b, 2-amino-N-(4,5-dihydroimidazol-2-yl)-benzimidazoles 13a—b, and N-(4,5-dihydroimidazol-2-yl)-indoles 14a—b was performed. Among the compounds tested, 2-[(2-amino-4,5-dichlorophenyl) imino]imidazolinium chloride 3c showed highest binding affinity to α2-adrenoreceptors (Ki = 30 nM).
Space-efficient and exact de Bruijn graph representation based on a Bloom filter (2013)

An assembly software implementing this structure, Minia, performed a complete de novo assembly of human genome short reads using 5.7 GB of memory in 23 hours.
Hong Kong International Airport—civil engineering design (1999)

Hong Kong's new airport covers an area of 1248 ha, of which three quarters has been reclaimed from the sea. This paper describes the civil engineering design for the HK$ 50 billion project including the reclamation, runways, 550 000 m2 passenger terminal building, ground transportation centre and supporting infrastructure. It covers the early site selection and the factors affecting the layout of the airport. It details the leading role taken by the Authority in the prediction of reclamation settlement and how this was accounted for in the design and construction of the works. It concludes with a brief description of the wide-ranging environmental initiatives which were applied at all stages of this massive project.
Ultrastructural localization of scrapie prion proteins in cytoplasmic vesicles of infected cultured cells. (1991)

Infectious scrapie prions are composed largely, if not entirely, of an abnormal isoform of the prion protein (PrP) designated PrPSc. In scrapie-infected mouse neuroblastoma (ScN2a) and hamster brain (ScHaB) cells, PrPSc accumulates primarily within the cell cytoplasm, whereas cellular PrP (PrPC) is anchored to the external surface of the plasma membrane by a glycoinositol phospholipid moiety. To determine the subcellular localization of PrPSc, scrapie-infected cells were grown to approximately 75% confluency, fixed briefly, and then incubated with guanidine thiocyanate before antibody staining and examination by electron microscopy. PrPSc immunoreactivity was enhanced by denaturation with guanidine isothiocyanate which also permeabilized cells (Taraboulos et al., J Cell Biol 110:2117, 1990). As judged both by deposition of immunoperoxidase reaction product (diaminobenzidine) and by presence of immunogold particles, PrPSc was identified in discrete vesicular foci and some large bodies in the cytoplasm of scrapie-infected cells. Some vesicles with PrPSc staining also contained myelin figures resembling those found in autophagic vacuoles forming secondary lysosomes. The presence of PrPSc in secondary lysosomes is inferred from colocalization of guanidine isothiocyanate enhanced PrP immunoreactivity and acid phosphatase. Neither the diaminobenzidine reaction product nor immunogold particles were observed in association with the nucleus, endoplasmic reticulum, or Golgi stacks. Exposure of scrapie-infected cells to the brefeldin A dispersed the Golgi apparatus but did not alter the morphologic distribution of PrPSc, indicating that no detectable PrPSc was associated with Golgi stacks. It remains to be established whether secondary lysosomes are involved in the post-translational formation of PrPSc.
Layering negotiations for flexible attestation (2006)

Recently, much attention has been paid to research on distributed coalitions that establish trust among the members of groups of computing components in distributed environments. The Trusted Virtual Domains (TVD) that our research division is proposing is a new model of a distributed coalition for establishing multiple trusted coalitions of components on nodes in distributed heterogeneous environments. In a large-scale distributed computing environment where many kinds of components exist and there might be difficult situations to agree common attestation methods among all components beforehand, it is necessary to provide each component with flexible attestation according to its usage scenario for increasing the number of components that can participate in TVD.In this paper, we propose a layering negotiation approach. It divides an attestation process into a global attestation phase that verifies that a TVD is fundamentally secure and supporting essential trusted primitives and a local attestation phase that verifies the integrity of a specific component involved in a usage scenario. And, a combination of attestation methods is decided as a result of negotiation between the components for each kind of attestation at each phase. With our approach, the attestation corresponding to a usage scenario can be done flexibly based on the minimal required attestation needed in the TVD, so the component developers can concentrate on the implementation of the higher-level functions.
The Need for Undergraduate Education in Critical Care. (Results of a Questionnaire to Year 6 Medical Undergraduates, University of New South Wales and Recommendations on a Curriculum in Critical Care) (1999)

One hundred and fifteen final year medical students of the University of New South Wales (UNSW) who were gathered together for mid-year lectures were asked to respond to a questionnaire which sought their perceptions of their knowledge of and competence in those skills required to prevent loss of life of patients with acute reversible life-threatening illnesses. There were 101 responders (88% response rate). A high proportion of students lacked practical experience of many of the skills or had not witnessed some procedures. They lacked confidence in their ability to manage acute emergencies. The results were similar to those in a separate study of the perceptions of New South Wales interns and resident medical officers of their competencies at the beginning of their intern year. The authors concluded that undergraduate education in critical care had not kept pace with the rapid evolution of critical care practice and describe the development and implementation of an explicit vertical and horizontal curriculum of critical care in the undergraduate curriculum of the UNSW.
Predicting Social Emotions from Readers’ Perspective (2017)

Due to the rapid development of Web, large numbers of documents assigned by readers' emotions have been generated through new portals. Comparing to the previous studies which focused on author's perspective, our research focuses on readers' emotions invoked by news articles. Our research provides meaningful assistance in social media application such as sentiment retrieval, opinion summarization and election prediction. In this paper, we predict the readers' emotion of news based on the social opinion network. More specifically, we construct the opinion network based on the semantic distance. The communities in the news network indicate specific events which are related to the emotions. Therefore, the opinion network serves as the lexicon between events and corresponding emotions. We leverage neighbor relationship in network to predict readers' emotions. As a result, our methods obtain better result than the state-of-the-art methods. Moreover, we developed a growing strategy to prune the network for practical application. The experiment verifies the rationality of the reduction for application.
BVA Quartz Crystal Resonator and Oscillator Production: A Statistical Review (1983)

Abstract : The BVA consists of an electrodeless resonator which is decoupled from its mounting structure by four bridges. These bridges have a width of only .4 mm to get the mounting stresses away from the active centerpart as much as possible. The electrodes are plated on two more pieces, called condensors, which are made also of AT Quartz blanks with the same cutangle as the resonator blank. Since the BVA is designed an an oven quartz this is the only possibility to avoid stresses due to thermal expansion. The three parts, we call it sandwich, are rigidly hold together with clips made from stainless steel. To protect the fragile bridges against shocks the whole sandwich is mounted with springs into a rigid cage consisting of the base plate and a cover plate which are fixed to 4 columns.
Advanced 1.5 Hz passive viscous isolation system (1994)

Presented at the AIAA 35th SDM Conference Hilton Head, South Carolina April 1994 Copyright  1994 by Honeywell Inc. A high-performance isolator has been developed for a multiaxis isolation system for a large reaction wheel assembly. Reaction wheel assemblies are used for spacecraft attitude control. The isolator offers significant improvements over prior isolators, providing a low break frequency and featuring a tuned, three-parameter configuration that significantly outperforms the more conventional two-parameter design. A three-parameter system is one that is modeled with spring elements in series and parallel with the damper. Two-parameter systems, as modeled in most vibration texts, have a single spring element in parallel with the damper. The system is tuned by selecting three-parameter values that provide maximum damping at the fundamental frequency and reduced damping at higher frequencies. The mathematical basis for three-parameter isolators with tuning methodology is included. Physical design features of the isolator are described in addition to actual test data that confirms the fundamental performance improvement. The technique for obtaining low suspension frequencies is also discussed.
Reduced acoustic cloaks based on temperature gradients (2012)

This letter presents the design of a reduced acoustic cloak that uses a temperature gradient in order to obtain sound speeds larger than in air. The cloak consists of a circular acoustic crystal made of ten concentric layers of rigid cylinders whose surfaces are heated or cooled in order to get the temperature gradient needed for cloaking behavior. The total pressure field produced by the scattering of sound waves impinging this complex structure is computed and it is shown how acoustic waves are bent in a way similar to that predicted for perfect cloaking devices.
Research of Synchronization Algorithm in Cooperative Relay Systems (2012)

摘要: 该文考虑了协同中继系统中的多时偏和多频偏估计问题，提出了一种基于恒幅零自相关基础序列的同步序列，进而提出了相应的多时偏和多频偏估计算法，相关的定时与频偏估计算法只需要做简单的自相关和互相关运算就可以获得良好的估计性能。仿真结果表明，所提出的同步序列和同步算法在协同中继系统中可以取得满意的系统性能。 关键词: 无线通信 / 协同中继系统 / 同步序列 / 定时估计 / 频偏估计
Electron-Plasmon and Electron-Electron Interactions at a Single Atom Contact (2009)

The transition from tunneling to contact is investigated by detecting light emitted from Au(111) in a scanning tunneling microscope. Optical spectra reflect single and multielectron processes and their distinct evolutions as a single-atom contact is formed. The experimental data are analyzed in terms of plasmon excitation and hot-hole processes.
Using code normalization for fighting self-mutating malware (2006)

Self mutating malware has been introduced by computer virus writers who, in ’90s, started to write polymorphic and metamorphic viruses in order to defeat anti-virus products. In this paper we present a novel approach for dealing with self mutating code which could represent the basis for a new detection strategy for this type of malware. A tool prototype has been implemented in order to validate the idea and the results are quite encouraging, and indicate that it could represent a new strategy for detecting this kind of malware. 1
Diffusion and Thermal Diffusion of Semidilute to Concentrated Solutions of Polystyrene in Toluene in the Vicinity of the Glass Transition (2002)

The approaching glass transition in polystyrene/toluene solutions leads to a sharp decay of both the collective diffusion coefficient D and the thermal diffusion coefficient D(T) at concentrations above 0.2 g/cm(3). The Soret coefficient S(T) = D(T)/D follows power-law scaling from semidilute to concentrated and is not influenced by the slowing down of the dynamics associated with the glass transition. Both D and D(T) are governed by the same friction coefficient. The scaling behavior of S(T) with concentration on approach of the glass transition is compared to the divergence of S(T) near a consolute critical point.
System Scheduling for Multi-Description Video Streaming Over Wireless Multi-Hop Networks (2009)

Providing real-time multimedia applications over wireless multi-hop networks is a challenging problem because the wireless channels are highly sensitive to delay, interference and topology changes. Multiple description coding (MDC), as a new emerging error-resilient technique, has been widely used recently in wireless video transmission. Its fundamental principle is to generate multiple correlated descriptions such that each description approximates the source information with a certain level of fidelity. Inevitably, MDC introduces many description streams which may influence each other and thus, reasonable system scheduling is needed to provide a satisfied video quality. The novelty of this work is to investigate the optimal distributed scheduling for multiple competing MDC streams in a resource-limited wireless multi-hop network. This is achieved by joint optimization of MDC, rate control and multipath routing. Two joint optimal algorithms, namely a distributed rate control and routing (DRCR) and a simplified DRCR algorithm, are proposed to solve this problem with constraints that arise from the multiple description streams among multiple users via multiple paths. Both algorithms are designed in a distributed manner that is amenable to on-line implementation for wireless networks. Theoretical analysis and simulation results are provided which demonstrate the effectiveness of our proposed joint schemes.
A first-in-human phase 1 trial to evaluate the safety and immunogenicity of the candidate tuberculosis vaccine MVA85A-IMX313, administered to BCG-vaccinated adults (2016)

MVA85A-IMX313 was well tolerated and immunogenic. There was no significant difference in the number of vaccine-related, local or systemic adverse reactions between MVA85A and MVA85A-IMX313 groups. The mycobacteria-specific cellular immune responses induced by MVA85A-IMX313 were not significantly different to those detected in the MVA85A group. In light of this encouraging safety data, further work to improve the potency of molecular adjuvants like IMX313 is merited. This trial was registered on clinicatrials.gov ref. NCT01879163.
SubEdit (2009)

In this paper we present SubEdit , a representation for editing the BSSRDF of heterogeneous subsurface scattering acquired from real-world samples. Directly editing measured raw data is difficult due to the non-local impact of heterogeneous subsurface scattering on the appearance. Our SubEdit representation decouples these non-local effects into the product of two local scattering profiles defined at respectively the incident and outgoing surface locations. This allows users to directly manipulate the appearance of single surface locations and to robustly make selections. To further facilitate editing, we reparameterize the scattering profiles into the local appearance concepts of albedo, scattering range, and profile shape. Our method preserves the visual quality of the measured material after editing by maintaining the consistency of subsurface transport for all edits. SubEdit fits measured data well while remaining efficient enough to support interactive rendering and manipulation. We illustrate the suitability of SubEdit as a representation for editing by applying various complex modifications on a wide variety of measured heterogeneous subsurface scattering materials.
Experimental study of Raman free-electron laser (1987)

This paper describes the preliminary experimental results of a free-electron laser based on stimulated Raman scattering. Its e-beam is emitted from a carefully designed foilless diode of a 0.5 MeV electron accelerator and guided by a strong axial magnetic field. This collimated 1 m long solid (or hollow) cylindrical e-beam in the drift tube is used as the laser medium. Pulses of the freeelectron laser radiation have been obtained in the superradiant mode by using either a right-hand circularly polarized wiggler or an axially symmetric iron-ring wiggler as the pump source. Typical laser pulse parameters include an FWHM of about 20 ns, an average power of about 1 MW and wavelength of about 7mm (K a band). The experimental results are in good agreement with theoretical analyses.
Genetic analysis of the cytotoxin-associated gene and the vacuolating toxin gene in Helicobacter pylori strains isolated from Taiwanese patients. (1997)

The strong association (98%) of cagA+ strains with Taiwanese patients suggests that the cagA+ phenotype could not be used as a single marker of high-risk patients in Taiwan. Moreover, sequence analysis indicates that Taiwanese strains contain different genetic sequences from those in other geographic regions.
Multilinguality in ETAP-3 (2004)

The paper presents the work done at the Institute for Information Transmission Problems (Russian Academy of Sciences, Moscow) on the multifunctional linguistic processor ETAP-3. Its two multilingual options are discussed -- machine translation in a variety of language pairs and translation to and from UNL, a meaning representation language.
Antispasmodics. VI (1944)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTAntispasmodics. VIF. F. Blicke and R. F. FeldkampCite this: J. Am. Chem. Soc. 1944, 66, 7, 1087–1091Publication Date (Print):July 1, 1944Publication History Published online1 May 2002Published inissue 1 July 1944https://pubs.acs.org/doi/10.1021/ja01235a008https://doi.org/10.1021/ja01235a008research-articleACS PublicationsRequest reuse permissionsArticle Views246Altmetric-Citations18LEARN 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