gebhart/patrepeval huggingface dataset:
Polynomial method in coding and information theory (1999)

Polynomial, or Delsarte's, method in coding theory accounts for a variety of structural results on, and bounds on the size of, extremal configurations (codes and designs) in various metric spaces. In recent works of the authors the applicability of the method was extended to cover a wider range of problems in coding and information theory. In this paper we present a general framework for the method which includes previous results as particular cases. We explain how this generalization leads to new asymptotic bounds on the performance of codes in binary-input memoryless channels and the Gaussian channel, which improve the results of Shannon et al. of 1959-67, and to a number of other results in combinatorial coding theory.
Structural studies of group 5B–halide–dithio-ligand complexes. Part 5. Crystal structures of pentanuclear [Bi5(S2CNEt2)8X7], X = Cl, Br, or I, and the pyridinium salt of the tetranuclear [Bi4(S2CNEt2)4Br10]2–anion (1981)

Recrystallization of the complexes [Bi(S2CNEt2)X2], X = Cl, Br, or I, from dimethylformamide–n-butanol results in the formation of [Bi5(S2CNEt2)8X7]·.dmf (dmf = dimethylformamide). The three complexes are isomorphous and have been characterized structurally by single-crystal X-ray diffraction, showing the structure to be comprised of a [BiX6]3– species acting as a central bridging unit by co-ordinating to four surrounding [Bi(S2CNEt2)2]+ species, with an additional halide bridge preserving electroneutrality. The overall unit has crystallographically imposed 2 symmetry; the unit cell is monoclinic, space group C2/c, with a ca. 19.5, b ca. 20.5, c ca 21.5 Å, and βca. 102.5°. Recrystallization of [Bi(S2NCEt2)Br2] from pyridine–n-butanol results in the formation of [NC5H6]2[Bi4(S2CNEt2)4Br10](solvated). The complex anion has a crystallographically imposed two-fold symmetry element.
UV SHG emission by the QPM technique using ferroelectric fluorides (2008)

Ferroelectric fluorides are the key materials for the SHG in the UV/VUV by the QPM technique. Ferroelectric characteristics and large single crystal growth are addressed. UV SHG emission is demonstrated with BaMgF <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">4</sub> QPM devices.
Non-Symmetric Coded Caching for Location-Dependent Content Delivery (2021)

Immersive viewing is emerging as the next interface evolution for human-computer interaction. A truly wireless immersive application necessitates immense data delivery with ultra-low latency, raising stringent requirements for next-generation wireless networks. A potential solution for addressing these requirements is through the efficient usage of in-device storage and computation capabilities. This paper proposes a novel location-based coded cache placement and delivery scheme, which leverages the nested code modulation (NCM) to enable multi-rate multicasting transmission. To provide a uniform quality of experience in different network locations, we formulate a linear programming cache allocation problem. Next, based on the users' spatial realizations, we adopt an NCM based coded delivery algorithm to efficiently serve a distinct group of users during each transmission. Numerical results demonstrate that the proposed location-based delivery method significantly increases transmission efficiency compared to state of the art.
Conjugal transfer of plasmid pIP501 from Lactococcus lactis to Lactobacillus delbrückii subsp. bulgaricus and Lactobacillus helveticus. (1989)

Plasmid pIP501 was transferred by conjugation from Lactococcus lactis to Lactobacillus delbrückii subsp. bulgaricus and Lactobacillus helveticus. Only Lb. delbrückii subsp. bulgaricus transconjugants could act as a donor in crosses with Lc. lactis. No Lactobacillus transconjugants were detected after inter- or intra-species Lactobacillus crosses. Plasmid pIP501 has undergone no detectable deletion or rearrangement during transfer from Lc. lactis to Lactobacillus strains.
ChemInform Abstract: Coherent Membrane Supports for Parallel Microsynthesis and Screening of Bioactive Peptides (2001)

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Chinese string searching using the KMP algorithm (1996)

This paper is about the modification of KMP (Knuth, Morris and Pratt) algorithm for string searching of Chinese text. The difficulty is searching through a text string of single-and multi-byte characters. We showed that proper decoding of the input as sequences of characters instead of bytes is necessary. The standard KMP algorithm can easily be modified for Chinese string searching but at the worst-case time-complexity of O(3n) in terms of the number of comparisons. The finite-automaton implementation can achieve worst-case time complexity of O(2n) but constructing the transition table depends on the size of the alphabet, Σ, which is large for Chinese (for Big-5, Σ > 13,000). A mapping technique reduces the size the alphabet to at most /P/ where P is the pattern string.
Multiple scattering from submerged bodies with dissimilar acoustical properties. Part II. Experimental results (1995)

In Part I [Turek etal.] a numerical solution for a two-body acoustical multiple scattering problem based on the analytical infinite series solution of the wave equation was presented. Surface and far-field solutions involv- ing permutations of the two ‘‘degenerate’’ boundary conditions (pressure release and rigid) were compared to solutions obtained with the combined Helmholtz integral equation formulation problem (CHIEF) program. In this paper the case in which one of the spheres is fully elastic and the other pressure release is modeled and the results verified experimentally.
Two-photon interference in a Mach-Zehnder interferometer (1990)

Pairs of 826.8-nm correlated photons, generated by parametrically down-converting 413.4-nm krypton-ion laser light, are directed into a single Mach-Zehnder interferometer such that each photon of the pair enters a different input port. The rate of coincidence at the two output ports displays oscillations (as the path-length difference is swept) with a spatial period equal to the 413-nm wavelength of the pump photons, and with a visibility of 62% when the path-length difference exceeds the coherence length of the individual photon beams. This unequivocally demonstrates the nonclassical and entangled nature of the two-photon state.
In-Vivo Obstetric Pressure Measurements for Patient-Specific Epidural Simulator (2014)

The aim of this study was to measure changing pressures during Tuohy epidural needle insertions for obstetric parturients of various BMI. This has identified correlations between BMI and epidural pressure. Also we investigated links between BMI and the thicknesses and depths of ligaments and epidural space as measured from MRI and ultrasound scans. To date there have been no studies relating epidural pressure and ligament thickness changes with varying Body Mass Indices (BMI). Further goals following measurement of pressure differences between various BMI patients, were to allow a patient-specific epidural simulator to be developed, which has not been achieved before. The trial has also assessed the suitability of our in-house developed wireless pressure measurement device for use in-vivo. Previously we conducted needle insertion trial with porcine for validation of the measurement system. Results showed that for each group average pressures during insertion decrease as BMI increases. Pressure measurements obtained from the patients were matched to tissue thickness measurements from MRI and ultrasound scans. The mean Loss of Resistance (LOR) pressure in each group reduces as BMI increases. Variation in the shape of the pressure graphs was noticed between two epiduralists performing the procedure, suggesting each anaesthetist may have a signature graph shape. This is a new finding which offers potential use in epidural training and assessment. It can be seen that insertions performed by the first epiduralist have a higher pressure range than insertions performed by second epiduralist.
Maintaining a directed, triangular formation of mobile autonomous agents (2011)

This paper analyzes a class of distributed control laws which encompasses and generalizes three previously considered types of control laws for maintaining a triangular formation in the plane consisting of three point-modeled, mobile autonomous agents. It is shown that the control laws considered can cause any initially non-collinear, positively-oriented {resp. negatively-oriented} three agent formation to converge exponentially fast to a desired positively-oriented {resp. negatively-oriented} triangular formation. These findings extend earlier results and provide an alternative perspective.
Fillers (2004)

Abstract Fillers are particulate materials added to polymers in order to improve the physical properties and/or to reduce the cost of the composite. They can be classified according to their source, function, composition, and/or morphology. No single classification scheme is entirely adequate because of the overlap and ambiguity of these categories. The chemical composition and its effect on composite physical properties typically classify fillers into three broad categories: nonreinforcing or degrading, semireinforcing or extending, and reinforcing fillers. Use of fillers in many commerical polymers is for the enhancement in stiffness, strength, dimensional stability, toughness, heat distortion temperature, damping, impermeability, and cost reduction, although not all of these desirable features are found in any single filled polymer. Improvements in composite physical properties is directly related to particle size, whereby the smaller particulate fillers impart greater reinforcement. Particle‐size distribution and particle shape also have significant effects on composite reinforcement. Filler structure ranges from precise geometrical forms, such as spheres, hexagonal plates, or short fibers, to irregular masses. A particle with a high aspect ratio has higher reinforcement than a more spherical one. Fillers having a broad particle‐size distribution have better packing in the polymer matrix and provide lower viscosity than that provided by an equal volume of the filler with a narrow particle‐size distribution. The properties of particulate‐filled polymers are determined by the properties of the components, by the shape of the filler phase, by the morphology of the system, and by the polymer‐filler interfacial interactions.
CD9 tetraspanin generates fusion competent sites on the egg membrane for mammalian fertilization (2011)

CD9 tetraspanin is the only egg membrane protein known to be essential for fertilization. To investigate its role, we have measured, on a unique acrosome reacted sperm brought in contact with an egg, the adhesion probability and strength with a sensitivity of a single molecule attachment. Probing the binding events at different locations of wild-type egg we described different modes of interaction. Here, we show that more gamete adhesion events occur on Cd9 null eggs but that the strongest interaction mode disappears. We propose that sperm-egg fusion is a direct consequence of CD9 controlled sperm-egg adhesion properties. CD9 generates adhesion sites responsible for the strongest of the observed gamete interaction. These strong adhesion sites impose, during the whole interaction lifetime, a tight proximity of the gamete membranes, which is a requirement for fusion to take place. The CD9-induced adhesion sites would be the actual location where fusion occurs.
Hardware-Assisted Circumvention of Self-Hashing Software Tamper Resistance (2005)

Self-hashing has been proposed as a technique for verifying software integrity. Appealing aspects of this approach to software tamper resistance include the promise of being able to verify the integrity of software independent of the external support environment, as well as the ability to integrate code protection mechanisms automatically. In this paper, we show that the rich functionality of most modern general-purpose processors (including UltraSparc, x86, PowerPC, AMD64, Alpha, and ARM) facilitate an automated, generic attack which defeats such self-hashing. We present a general description of the attack strategy and multiple attack implementations that exploit different processor features. Each of these implementations is generic in that it can defeat self-hashing employed by any user-space program on a single platform. Together, these implementations defeat self-hashing on most modern general-purpose processors. The generality and efficiency of our attack suggests that self-hashing is not a viable strategy for high-security tamper resistance on modern computer systems.
Moving obstacle detection from a navigating robot (1998)

This paper presents a system that detects unexpected moving obstacles that appear in the path of a navigating robot, and estimates the relative motion of the object with respect to the robot. The system is designed for a robot navigating in a structured environment with a single wide-angle camera. The system uses polar mapping to simplify the segmentation of the moving object from the background. The polar mapping is performed with the focus of expansion as the center. A vision-based algorithm that uses the vanishing points of segments extracted from a scene in a few 3D orientations provides an accurate estimate of the robot orientation. In the transformed space qualitative estimate of moving obstacles is obtained by detecting the vertical motion of edges extracted in a few specified directions. Relative motion information about the obstacle is then obtained by computing the time to impact between the obstacles and robot from the radial component of the optical flow. The system was implemented and on an indoor mobile robot.
Spectroscopic characterization of different femtosecond laser modification regimes in fused silica (2007)

Structural changes associated with femtosecond laser fabrication of waveguides and Bragg gratings in fused silica were analyzed using optical microscopy and laser spectroscopy. Using 800 nm femtosecond lasers with a kilohertz repetition rate and various pulse energies, both smooth and rough modifications were induced. The different modification regimes were characterized by measuring the spectra of the light emitted during writing with the femtosecond laser and collecting fluorescence spectra after femtosecond writing using a low power 488 nm laser as an excitation source. The spectral features observed during and after writing can be used to distinguish the smooth and rough modification regimes, and they assist in understanding the underlying modification mechanisms..
High Spatial Resolution Multichannel Recording (2004)

This convention paper has been reproduced from the author’s advance manuscript, without editing, corrections, or consideration by the Review Board. The AES takes no responsibility for the contents. Additional papers may be obtained by sending request and remittance to Audio Engineering Society, 60 East 42 Street, New York, New York 10165-2520, USA; also see www.aes.org. All rights reserved. Reproduction of this paper, or any portion thereof, is not permitted without direct permission from the Journal of the Audio Engineering Society.
Influence of Both Temperature and γ′ Distribution on the Development of Strain Incompatibilities at Grain Boundaries at Low Temperature in the Udimet™ 720 Li Superalloy (2014)

This chapter contains sections titled: Introduction Experimental Strain Localization at Grain Boundaries From Strain Localization to Crack Initiation Conditions Favoring the Development of Strain Localization in Micro-Volumes at a Grain Boundary Ahead of a Slip Band Conclusions Acknowledgments
Molecular Transformation via Nickelacycle Intermediate (2013)

Nickelacycles have been known as a key reaction intermediate. The β-hydrogen transfer reactions from nickelacycles allow us to synthesize acyclic organic compounds. The reductive elimination from nickelacycles allows us to synthesize a variety of cyclic organic compounds. Thus, the generation of a new nickelacycles from a new combination of unsaturated compounds and nickel(0) species is a key to develop nickel-catalyzed new reactions. We report here the new molecular transformations of a variety of unsaturated compounds via nickelacycles in which both acyclic and cyclic compounds were obtained. In addition, the isolation of the reaction intermediates and their reaction mechanisms are discussed as well.
The Use of a Bioabsorbable Barrier for Regenerative Management of Marginal Tissue Recession. I. Report of 100 Consecutively Treated Teeth (2000)

The use of guided tissue regeneration in periodontal plastic surgery is highly predictable, and highly esthetic root coverage can be gained without requiring a second surgical procedure or a second surgical site and is, therefore, an attractive alternative to conventional grafting techniques.
Impact of diesel vehicular emissions on ambient black carbon concentration at an urban location in India (2004)

Vehicular emissions in the urban areas are known to contribute significantly to aerosol black carbon (BC) loading to the atmosphere. Quantification of BC emissions is important from the climate research point of view, as the BC aerosols strongly absorb solar radiation. A case study has been carried out in an urban area, Hyderabad, to assess the impact of emissions associated with truck transport on ambient BC concentration. The study was carried out during the recent nationwide truck strike of April 2003. The results indicate a significant reduction in the BC loading associated with withdrawal of the trucks. The decrease was gradual, while the recovery was almost immediate.
Calculation of corona voltage-current characteristics in air (2009)

This paper focuses on numerical simulations of positive dc corona in air in coaxial cylindrical electrode arrangement. The study aimed at developing a computer model accounting for background physical processes in corona discharge and its verification by means of comparison of calculated corona characteristics with experimental data. Several parameters of corona, namely, inception voltages, voltage current characteristics and onset field strength values were used for evaluations of the model performance. The validated model was further utilized to investigate the effects of ion mobilities on corona current and variations of the ionization intensity on corona inception voltages.
Src is a major signaling component for CTGF induction by TGF‐β1 in osteoblasts (2010)

Connective tissue growth factor (CTGF/CCN2) is induced by transforming growth factor beta1 (TGF-beta1) where it acts as a downstream mediator of TGF-beta1 induced matrix production in osteoblasts. We have shown the requirement of Src, Erk, and Smad signaling for CTGF induction by TGF-beta1 in osteoblasts; however, the potential interaction among these signaling pathways remains undetermined. In this study we demonstrate that TGF-beta1 activates Src kinase in ROS17/2.8 cells and that treatment with the Src family kinase inhibitor PP2 prevents Src activation and CTGF induction by TGF-beta1. Additionally, inhibiting Src activation prevented Erk activation, Smads 2 and 3 activation and nuclear translocation by TGF-beta1, demonstrating that Src is an essential upstream signaling partner of both Erk and Smads in osteoblasts. MAPKs such as Erk can modulate the Smad pathway directly by mediating the phosphorylation of Smads or indirectly through activation/inactivation of required nuclear co-activators that mediate Smad DNA binding. When we treated cells with the Erk inhibitor, PD98059, it inhibited TGF-beta1-induced CTGF protein expression but had no effect on Src activation, Smad activation or Smad nuclear translocation. However PD98059 impaired transcriptional complex formation on the Smad binding element (SBE) of the CTGF promoter, demonstrating that Erk activation was required for SBE transactivation. These data demonstrate that Src is an essential upstream signaling transducer of Erk and Smad signaling with respect to TGF-beta1 in osteoblasts and that Smads and Erk function independently but are both essential for forming a transcriptionally active complex on the CTGF promoter in osteoblasts.
Timely crawling of high-quality ephemeral new content (2013)

Nowadays, more and more people use the Web as their primary source of up-to-date information. In this context, fast crawling and indexing of newly created Web pages has become crucial for search engines, especially because user traffic to a significant fraction of these new pages (like news, blog and forum posts) grows really quickly right after they appear, but lasts only for several days. In this paper, we study the problem of timely finding and crawling of such ephemeral new pages (in terms of user interest). Traditional crawling policies do not give any particular priority to such pages and may thus crawl them not quickly enough, and even crawl already obsolete content. We thus propose a new metric, well thought out for this task, which takes into account the decrease of user interest for ephemeral pages over time. We show that most ephemeral new pages can be found at a relatively small set of content sources and present a procedure for finding such a set. Our idea is to periodically recrawl content sources and crawl newly created pages linked from them, focusing on high-quality (in terms of user interest) content. One of the main difficulties here is to divide resources between these two activities in an efficient way. We find the adaptive balance between crawls and recrawls by maximizing the proposed metric. Further, we incorporate search engine click logs to give our crawler an insight about the current user demands. Efficiency of our approach is finally demonstrated experimentally on real-world data.
Microwave Linear Phase Filters (1984)

This work presents an exact method for construction of a new nonminimum phase maximally flat transfer function with ideal amplitude pulsation at an arbitrary frequency wo and linear phase response. This transfer funcction is based on a polinomial obtained combining two succesive Bessel polynomials. A generalized interdigital filter was built using the new transfer function and the experimental results presented here show that this new class of nonminimum phase filters can be builtin practice, offering an improvement of attenuation response in the rection band.