gebhart/patrepeval huggingface dataset:
Pitch detection by data reduction (1975)

This paper presents an algorithm that determines the fundamental frequency of sampled speech by segmenting the signal into pitch periods. Segmentation is achieved by identifying those samples of the waveform corresponding to the beginning of each pitch period. The segmentation is accomplished in three phases. First, using zero crossing and energy measurements, a data structure is constructed from the speech samples. This structure contains candidates for pitch period markers. Next, the number of candidate markers within this structure is reduced utilizing syllabic segmentation, coarse pitch frequency estimations, and discrimination functions. Finally, the remaining pitch period markers are corrected, compensating for errors introduced by the data reduction process. This algorithm processes both male and female speech, provides a voiced-unvoiced decision, and operates in real time on a medium speed, general purpose computer.
Acoustic cardiac triggering: a practical solution for synchronization and gating of cardiovascular magnetic resonance at 7 Tesla (2010)

The applicability of acoustic triggering for cardiac CINE imaging at 7.0 T was demonstrated. ACT's trigger reliability and fidelity are superior to that of ECG and POX. ACT promises to be beneficial for cardiovascular magnetic resonance at ultra-high field strengths including 7.0 T.
Low temperature synthesis of ZnS and CdZnS shells on CdSe quantum dots (2010)

Methods for synthesizing quantum dots generally rely on very high temperatures to both nucleate and grow core and core-shell semiconductor nanocrystals. In this work, we generate highly monodisperse ZnS and CdZnS shells on CdSe semiconductor nanocrystals at temperatures as low as 65 degrees C by enhancing the precursor solubility. Relatively small amounts of trioctylphosphine and trioctylphosphine oxide have marked effects on the solubility of the metal salts used to form shells; their inclusion in the precursor solutions, which use thiourea as a sulfur source, can lead to homogeneous and fully dissolved solutions. Upon addition to suspensions of quantum dot cores, these precursors deposit as uniform shells; the lowest temperature for shell growth (65 degrees C) yields the thinnest shells (d < 1 nm) while the same process at higher temperatures (180 degrees C) forms thicker shells (d approximately 1-2 nm). The growth of the shell structures, average particle size, size distribution, and shape were examined using optical spectroscopy, transmission electron microscopy, x-ray diffraction, and transmittance small angle x-ray scattering. The photoluminescence quantum yield (QY) of the as-prepared CdSe/ZnS quantum dots ranged from 26% to 46% as compared to 10% for the CdSe cores. This method was further generalized to CdZnS shells by mixing cadmium and zinc acetate precursors. The CdSe/CdZnS nanocrystals have a thicker shell and higher QY (40% versus 36%) as compared to the CdSe/ZnS prepared under similar conditions. These low temperature methods for shell growth are readily amenable to scale-up and can provide a route for economical and less energy intensive production of quantum dots.
Pelorol from the Tropical Marine Sponge <i>Dactylospongia elegans</i> (2000)

From the dichloromethane solubles of the tropical marine sponge Dactylospongia elegans, a new aromatic substituted sesquiterpene, pelorol (1), and the known sesquiterpene, ilimaquinone (2), were isolated. The structures of 1 and 2 were deduced from their spectroscopic data. The biological activities of compounds 1 and 2 were assessed in a variety of bioassays, and both compounds were found to have weak antitrypanosomal and antiplasmodial effects.
ADDITION REACTIONS OF PHOSPHORUS HALIDES. I. THE MECHANISM OF THE REACTION OF THE TRICHLORIDE WITH BENZALDEHYDE. (1920)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTADDITION REACTIONS OF PHOSPHORUS HALIDES. I. THE MECHANISM OF THE REACTION OF THE TRICHLORIDE WITH BENZALDEHYDE.James B. Conant and Alexander D. MacdonaldCite this: J. Am. Chem. Soc. 1920, 42, 11, 2337–2348Publication Date (Print):November 1, 1920Publication History Published online1 May 2002Published inissue 1 November 1920https://pubs.acs.org/doi/10.1021/ja01456a029https://doi.org/10.1021/ja01456a029research-articleACS PublicationsRequest reuse permissionsArticle Views175Altmetric-Citations10LEARN 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
Nitrieren von Aluminiumlegierungen mit UV-Laserstrahlung (1997)

The irradiation of aluminium alloys with excimer lasers at energy densities above plasma threshold leads to a substantial increase of pressure and temperature in the ns regime, as well as to plasma formation on the substrate surface. Following a single laser pulse, the thickness of the melted surface layer will increase through heat conduction to a depth of up to 20 μm. At the same time, alloying with the background gas (or plasma) is also possible. The quenching rates of the following solidification process reaches to about 10 7 to 10 11 K/s, thereby following the accepted rules of rapid quenching. Through gas alloying with excimer lasers, it is possible to produce solid-bonded and crack-free layers containing AIN, up to 20 microns in thickness for technical aluminium alloys, in which the finely dispersed AIN-crystals are evenly distributed. In nitrogen atmospheres however, the remelted layers of AlSi cast alloys will, for example, have an increase in surface hardness due to dispersion hardening, solid solution hardening and grain refinement. The AIN-concentration in the surface area is about 80Vol.-%, and will result in a decrease of the friction coefficient at dry sliding friction tests simultaneously decreasing the wear rate by up to a third, as opposed to an untreated alloy.
Shot boundary detection using unsupervised clustering and hypothesis testing (2004)

We propose a shot boundary detection approach based on unsupervised scenelet clustering and hypothesis testing. We define a video scenelet as a short consecutive samples of frames of a video sequence. The approach makes use of a typical k-means clustering algorithm to group the scenelets. Based on the clustering result, hypothesis testing can be performed to identify the shot boundaries at each level with a different cluster number. Combined with a cluster validity analysis to decide a suitable number of clusters, promising results can be obtained for shot boundary detection.
Liveness detection using time drift between lip movement and voice (2013)

Liveness check through measuring synchrony between the lip and the voice in video sequence has been proved to be a feasible way to prevent spoofing attacks. The generic methods utilize degree of audiovisual correlation to judge consistency. However, little attention is paid to the audiovisual time drift difference between live recordings and fraudulent attacks. In this paper, the time shift difference and the delay range is concluded by delay estimation experiments on VidTIMID. According to the conclusion, we propose an improved "liveness" scores evaluation algorithm for audio-video identification system. Experimental results on the same database show that the proposed algorithm got better performance. In comparison with the traditional methods, the EER (Equal Error Rate) averagely decreases about 5%.
Primo Vascular System in Human Umbilical Cord and Placenta (2014)

The primo vascular system (PVS) has been observed in various animals such as mice, rats, rabbits, dogs, swine, and cow, but not in humans. In this work, we report on the observation of a human PVS on both the epithelial fascia and inside the blood vessels of the umbilical cord (UC). The main morphological characteristics of the primo vessels (PVs) and primo nodes (PNs) from the human UC were in agreement with those of the PVS in various animal organs, including the thicknesses and the transparency of the PVs, the sizes of the PNs, the broken-line arrangement of the rod-shaped nuclei, the sparse distribution of nuclei, and the presence of hollow lumens in the central inner parts of the PNs. It was rather surprising that the human PV was not thicker than the PVs from small animals. The difference between the PVS and blood/lymph vessels was confirmed using immunofluorescence staining of von Willebrand factor, CD31, LYVE-1, and D2-40. The positive expression of the PVS to proliferating cell nuclear antigen, a cell-proliferation marker, was consistent with the recent finding of very small embryonic-like stem cells in the PVS of mice.
Towards Automated Requirements Triage (2007)

Budgetary restrictions and time-to-market deadlines often require stakeholders to prioritize requirements and decide which ones to include in a given product release. Lack of an effective prioritization and triage process can lead to problems such as missed deadlines, disorganized development efforts, and late discovery of architecturally significant requirements. Existing prioritization techniques do not provide sufficient automation for large projects with hundreds of stakeholders and thousands of potentially conflicting requests and requirements. This paper therefore proposes an approach for automating a significant part of the prioritization process. The proposed method utilizes a probabilistic traceability model combined with a standard hierarchical clustering algorithm to cluster incoming stakeholder requests into hierarchical feature sets. Additional cross-cutting clusters are then generated to represent factors such as architecturally significant requirements or impacted business goals. Prioritization decisions are initially made at the feature level and then more critical requirements are promoted according to their relationships with the identified cross-cutting concerns. The approach is illustrated and evaluated through a case study applied to the requirements of the ice breaker system.
Image quality and readability (2002)

Determining the readability of documents is an important task. Human readability pertains to the scenario when a document image is ultimately presented to a human to read. Machine readability pertains to the scenario when the document is subjected to an OCR process. In either case, poor image quality might render a document unreadable. A document image which is human readable is often not machine readable. It is often advisable to filter out documents of poor image quality before sending them to either machine or human for reading. This paper is about the design of such a filter. We describe various factors which affect document image quality and the accuracy of predicting the extent of human and machine readability possible using metrics based on document image quality.
Velocity macromodel estimation by stereotomography (1997)

PreviousNext No AccessSEG Technical Program Expanded Abstracts 1997Velocity macromodel estimation by stereotomographyAuthors: Frederic BilletteGilles LambarePascal PodvinFrederic BilletteEcole des Mines de Paris, Gilles LambareEcole des Mines de Paris, and Pascal PodvinEcole des Mines de Parishttps://doi.org/10.1190/1.1885809 SectionsAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail Permalink: https://doi.org/10.1190/1.1885809FiguresReferencesRelatedDetailsCited byFast 3D velocity updates using the pre‐stack exploding reflector modelClaudio Guerra and Biondo Biondi21 October 2010StereotomographyGilles Lambaré1 October 2008 | GEOPHYSICS, Vol. 73, No. 5Yardsticks for industrial tomographyGeophysical Prospecting, Vol. 56, No. 46. Principles of Velocity Analysis21 March 20123D common-reflection-point-based seismic migration velocity analysisWeihong Fei and George A. McMechan28 August 2006 | GEOPHYSICS, Vol. 71, No. 510. Principles of Velocity Analysis21 March 2012 SEG Technical Program Expanded Abstracts 1997ISSN (print):1052-3812 ISSN (online):1949-4645Copyright: 1997 Pages: 2067 publication data© 1997 Copyright © 1997 Society of Exploration GeophysicistsPublisher:Society of Exploration Geophysicists HistoryPublished Online: 10 Feb 2005 CITATION INFORMATION Frederic Billette, Gilles Lambare, and Pascal Podvin, (1997), "Velocity macromodel estimation by stereotomography," SEG Technical Program Expanded Abstracts : 1889-1892. https://doi.org/10.1190/1.1885809 Plain-Language Summary PDF DownloadLoading ...
Über das Koordinationsverhalten von Silicium‐oxalaten (1967)

Abstract Durch Umsetzung von SiCl 4 , CH 3 SiCl 3 und C 6 H 5 SiCl 3 mit Oxalsäure in verschiedenen äthern ((C 2 H 5 ) 2 O, C 4 H 8 O 2 , C 4 H 8 O) werden Produkte folgender Zusammensetzung dargestellt: Die Beziehungen der unterschiedlichen Strukturtypen und ihre Abhängigkeit von der Art des beteiligten äthers werden untersucht.
Infusion Processing : An Alternative to Plasma Technology for Semiconductor Manufacturing (2006)

Abstract not Available.
Characterization<i>CSMD1</i>in a large set of primary lung, head and neck, breast and skin cancer tissues (2009)

The Cub and Sushi Multiple Domains-1 (CSMD1) is a tumor suppressor gene on 8p23.2, where allelic loss is both frequent and associated with poor prognosis in head and neck squamous cell carcinoma (HNSCC). To understand the extent of CSMD1 aberrations in vivo, we characterized 184 primary tumors from the head and neck, lung, breast and skin for gene copy number and analyzed expression in our HNSCCs and lung squamous cell carcinomas (SCCs). We detected loss of CSMD1 in a large proportion of HNSCCs (50%), lung (46%) and breast cancers (55%), and to a lesser extent in cutaneous SCCs (29%) and basal cell carcinomas (BCCs, 17%) using array-based comparative genomic hybridization (aCGH). Studying the region more closely with quantitative real-time PCR (qPCR), the loss of CSMD1 increased to 80% in HNSCCs and 93% in lung SCCs. CSMD1 expression was decreased in tumors compared to adjacent benign tissue (65%, 13/20) and was likely due to gene loss in 45% of cases (9/20). We also identified truncated transcripts lacking exons due to DNA copy number loss (30%, 5/17) or aberrant splicing (24%, 4/17). We show loss of CSMD1 in primary HNSCC tissues, and document for the first time that CSMD1 is lost in breast, lung and cutaneous SCCs. We also show that deletions of CSMD1 and aberrant splicing contribute to altered CSMD1 function in vivo.
COMPETENCIES & PREPAREDNESS OF ORGANIZATION TO COUNTENANCE GENERATION Z (2015)

Generation Z (Gen Z) belongs to group of population born after millennial generation. The exact range of the birth date is not specified for Gen Z however it has been referred as birth after late 1900s or from beginning of the 21st century. They are the teens, the youth, and young adult of global society. But the common among all of them is, they are present till date. Captionised as population with “DIGITAL IN THEIR DNA”, “TECHONOLOY & INTERNET BOOMERS”, Gen Z population are highly sophisticated, more techno savvy and moreover well versed with computer and internet world. They are proficient then their Gen Y (1974-1994) forerunners. Gifted with attribute as open minded, loyal, risk seeker, innovative, creative, digital natives, tolerance, flexible, and global player. Apart from these attributes they lack experience, prominent skill and techniques to add to their list to have a glance. Thus, to hire, motivate and retain Gen Z workforces for an organization is pretty challenging and yet fruitful in all regards. This paper investigates the competence and preparedness level of organization as how would they face the rapidly growing diverse and technology aided Gen Z workforce and provides suggestion for the organization to strengthen their competence and preparedness level to enhance Gen Z as a prominent player in their work force. Factors including communication skills, work environment, compensation policy, innovative idea and method of doing work, motivation and retention strategy are found to be crucial for countering the Gen Z and successful managing of all these factors is found be very much pivotal for an organization.
Les dirigeants de l’industrie française, par NICOLE DELAFORTRIE-SOUBEYROUX. (Collection « Recherche sur l’économie française », dirigée par J-M. Jeanneney et M. Flamant). Un vol., 6 po. x 9½, broché, 286 pages — LIBRAIRIE ARMAND COLIN, 103, boulevard Saint-Michel, Paris V, 1961 (1961)

Les dirigeants de l’industrie française, par NICOLE DELAFORTRIE-SOUBEYROUX. (Collection « Recherche sur l’économie française », dirigée par J-M. Jeanneney et M. Flamant). Un vol., 6 po. x 9½, broché, 286 pages — LIBRAIRIE ARMAND COLIN, 103, boulevard Saint-Michel, Paris Ve, 1961. Un article de la revue L'Actualité économique (Volume 37, numéro 2, juillet–septembre 1961, p. 219-404) diffusée par la plateforme Érudit.
Structure-Directed and Tailored Diversity Synthetic Antibody Libraries Yield Novel Anti-EGFR Antagonists (2017)

We tested whether grafting an interaction domain into the hypervariable loop of a combinatorial antibody library could promote targeting to a specific epitope. Formation of the epidermal growth factor receptor (EGFR) signaling heterodimer involves extensive contacts mediated by a "dimerization loop." We grafted the dimerization loop into the third hypervariable loop of a synthetic antigen-binding fragment (Fab) library and diversified other loops using a tailored diversity strategy. This structure-directed Fab library and a naı̈ve synthetic Fab library were used to select Fabs against EGFR. Both libraries yielded high affinity Fabs that bound to overlapping epitopes on cell-surface EGFR, inhibited receptor activation, and targeted epitopes distinct from those of cetuximab and panitumumab. Epitope mapping experiments revealed complex sites of interaction, comprised of domains I and II but not exclusively localized to the receptor dimerization loop. These results validate the grafting approach for designing Fab libraries and also underscore the versatility of naı̈ve synthetic libraries.
Validity of maternal and infant outcomes within nationwide Medicaid data (2014)

These PPVs are conservative, particularly when patients were transferred or received outpatient diagnoses, because we reviewed records from a single hospitalization only. PPVs improve with stringent identification criteria, at the cost of sensitivity, and can be used to correct for measurement error.
Electronic Packaging Evolution in IBM (1981)

A quarter century of innovation in the development of packaging for semiconductors has culminated in the announcement of the IBM 4300 Series of computers and the IBM 3081. This technology has been built on a broad and expanding base starting with packaging for the 1400 Series in the late 1950s. In the next series, System/360, IBM chose to follow a unique approach which employed solder joints for the semiconductor connections, allowing ultimately a higher density and total number of interconnections compared to the rest of the industry. This has driven the packaging at the module level to achieve extremely high density and has led to multichip interconnections and multilayers on this first level of package. The dramatically increasing circuit function at the module level requires area arrays of pins to be able to get enough of them in a small area. Thus the next level (second level) of packaging has likewise been driven to provide many layers of dense interconnections to link to the module pins. New types of plated through holes join the many layers of interconnection. The highlights of the technical approaches which have been developed over the twenty-five-year period are discussed briefly in this paper.
Conformational stability and aggregation of therapeutic monoclonal antibodies studied with ANS and Thioflavin T binding (2011)

Characterization of aggregation profiles of monoclonal antibodies (mAb) is gaining importance because an increasing number of mAb-based therapeutics are entering clinical studies and gaining marketing approval. To develop a successful formulation, it is imperative to identify the critical biochemical properties of each potential mAb drug candidate. We investigated the conformational change and aggregation of a human IgG1 using external dye-binding experiments with fluorescence spectroscopy and compared the aggregation profiles obtained to the results of size-exclusion chromatography. We show that using an appropriate dye at selected mAb concentration, unfolding or aggregation can be studied. In addition, dye-binding experiments may be used as conventional assays to study therapeutic mAb stability.
Einleitung (2002)

Bis in das Jahr 1994 war in Deutschland der Lebensversicherungsmarkt durch die Kontrolle des Bundesaufsichtsamtes für das Versicherungswesen reguliert. Von dieser Behörde wurden sog. Muster-Geschäftspläne entwickelt, die das Design und die Kalkulation für Lebensversicherungsprodukte vorgaben. In der Konsequenz kam es zu einer sehr starken Angleichung des Produktangebotes unter den Versicherungsunternehmen.
Oxygen behavior in aluminum nitride (2005)

The infrared lattice-vibration spectra of three polycrystalline samples of wurtzite AlN differing in their oxygen contamination have been studied by measuring the room-temperature reflectivity at near-normal incidence in the 400-3000cm−1 frequency range using unpolarized light. A type of highly-contaminated-material reflectivity spectrum has been observed. Two-mode behavior has been observed at low oxygen concentration, one-mode behavior tends to be dominant when the oxygen concentration increases and only one-mode behavior has been observed at high oxygen concentration. Otherwise, a careful analysis of the data using the Kramers-Kronig technique and classical dispersion theory gives, in addition to the transverse and longitudinal mode frequencies, two in-band resonance modes attributed to oxygen point defects in AlN. Changes in the frequencies of these modes with oxygen concentration are interpreted as a transition in the oxygen accommodation defect as the concentration of oxygen increases. A model for the behavior of oxygen in AlN is proposed.
Epidemiologic clues to the etiology of Kaposiʼs sarcoma (1993)

Division of Sexually Transmitted Diseases/HIV Prevention, National Center for Prevention Services, Atlanta, Georgia, USA *Division of HIV/AIDS, National Center for Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, USA †lmperial Cancer Research Fund, Cancer Epidemiology and Clinical Trials Unit, Oxford, UK.
Chemical constituents from Cassia occidentalis Linn. (2011)

Cassia occidentalis 1,2 Linn belongs to family Leguminosae which is commonly known as Kasunda or Bari kasunda in Hindi. It is distributed throughout India and in most tropical countries. Its roots are useful against ringworm infections. It is also used as a diuretic and in the treatment of snake-bite. The whole plant is useful as a purgative and used as a tonic. The seeds and leaves are used as cure for cutaneous diseases. Earlier workers 3-5 have reported various constituents from this plant. The present paper reports the isolation and structure elucidation of three new flavone glycosides from methanolic extract of the seeds of this plant.