gebhart/patrepeval huggingface dataset:
Robotic NDE inspection of advanced solid rocket motor casings (1994)

The Advanced Solid Rocket Motor program determined the need to inspect ASRM forgings and segments for potentially catastrophic defects. To minimize costs, an automated eddy current inspection system was designed and manufactured for inspection of ASRM forgings in the initial phases of production. This system utilizes custom manipulators and motion control algorithms and integrated six channel eddy current data acquisition and analysis hardware and software. Total system integration is through a personal computer based workcell controller. Segment inspection demands the use of a gantry robot for the EMAT/ET inspection system. The EMAT/ET system utilized similar mechanical compliancy and software logic to accommodate complex part geometries. EMAT provides volumetric inspection capability while eddy current is limited to surface and near surface inspection. Each aspect of the systems are applicable to other industries, such as, inspection of pressure vessels, weld inspection, and traditional ultrasonic inspection applications.
Data Mining: An Overview (2004)

Data mining is emerging as one of the key features of many homeland security initiatives. Often used as a means for detecting fraud, assessing risk, and product retailing, data mining involves the use of data analysis tools to discover previously unknown, valid patterns and relationships in large data sets. This report discusses the data mining uses (i.e. Terrorism Information Awareness (TIA) Program) and issues (i.e. data quality, interoperability, privacy), as well as the limitations of data mining.
Impulse: building a smarter memory controller (1999)

Impulse is a new memory system architecture that adds two important features to a traditional memory controller. First, Impulse supports application-specific optimizations through configurable physical address remapping. By remapping physical addresses, applications control how their data is accessed and cached, improving their cache and bus utilization. Second, Impulse supports prefetching at the memory controller, which can hide much of the latency of DRAM accesses. In this paper we describe the design of the Impulse architecture, and show how an Impulse memory system can be used to improve the performance of memory-bound programs. For the NAS conjugate gradient benchmark, Impulse improves performance by 67%. Because it requires no modification to processor, cache, or bus designs, Impulse can be adopted in conventional systems. In addition to scientific applications, we expect that Impulse will benefit regularly strided memory-bound applications of commercial importance, such as database and multimedia programs.
A Soluble Polymer Approach to the “Fishing Out” Principle:  Synthesis and Purification of β-Amino Alcohols (1998)

ADVERTISEMENT RETURN TO ISSUEPREVNoteNEXTA Soluble Polymer Approach to the "Fishing Out" Principle: Synthesis and Purification of β-Amino AlcoholsManabu Hori and Kim D. JandaView Author Information Department of Chemistry, The Scripps Research Institute, and The Skaggs Institute for Chemical Biology, 10550 North Torrey Pines Road, La Jolla, California 92037 Cite this: J. Org. Chem. 1998, 63, 3, 889–894Publication Date (Web):January 22, 1998Publication History Received16 September 1997Published online22 January 1998Published inissue 1 February 1998https://pubs.acs.org/doi/10.1021/jo971732lhttps://doi.org/10.1021/jo971732lbrief-reportACS PublicationsCopyright © 1998 American Chemical SocietyRequest reuse permissionsArticle Views477Altmetric-Citations37LEARN 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-AlertscloseSupporting Info (3)»Supporting Information Supporting Information SUBJECTS:Alcohols,Group 13 compounds,Inorganic compounds,Polymers,Reagents Get e-Alerts
Alkaloids from the Tunicate <i>Polycarpa aurata </i>from Chuuk Atoll (1996)

Two new alkaloids, polycarpine (1) and N,N-didesmethylgrossularine-1 (4), have been isolated from extracts of the ascidian Polycarpa aurata collected in Chuuk, Federated States of Micronesia. Three degradation products of 1 were also isolated. The structures of 1, 2, and 4 were determined by X-ray crystallography. The dimeric disulfide 1 inhibited the enzyme inosine monophosphate dehydrogenase, but the inhibition could be reversed by addition of excess dithiothreitol suggesting that 1 reacts with sulfhydryl groups on the enzyme.
Advances in glycoprotein synthesis (2005)

The development of chemical and enzymatic methods for the synthesis of homogeneous glycoproteins is a fascinating challenge at the interface between chemistry and biology. Discussed here are the currently available methods for preparation of homogeneous glycoproteins. These methods include (1) glycopeptide ligation; (2) glycoprotein remodeling; and (3) in vivo suppressor tRNA technology.
A Vision-Based Respiration Monitoring System for Passive Airway Resistance Estimation (2015)

The proposed VB-PARE system contributes to the state-of-art respiration monitoring methods by expanding the idea of passive and noninvasive airway resistance measurement.
Blind channel estimation and equalization of multiple-input multiple-output channels (1999)

Channel estimation and blind equalization of MIMO (multiple-input multiple-output) communications channels is considered using primarily the second-order statistics of the data. We consider estimation of (partial) channel impulse response and design of finite-length MMSE (minimum mean-square error) blind equalizers. The basis of the approach is the design of a zero-forcing equalizer that whitens the noise-free data. We allow infinite impulse response (IIR) channels. Moreover /spl Gamma/ the multichannel transfer function need not be column-reduced. Our approaches also work when the "subchannel" transfer functions have common zeros so long as the common zeros are minimum-phase zeros. The channel length or model orders need not be known. The sources are recovered up to a unitary mixing matrix and are further "unmixed" using higher-order statistics of the data. An illustrative simulation example is provided.
Features of Impinging Streams Intensifying Processes and Their Applications (2010)

Impinging streams (IS) are classified into gas-continuous and liquid-continuous ones (GIS and LIS). Large number of experimental data has shown GIS promotes transfer very efficiently; while it has the intrinsic faultiness of very short residence time, and its flow configuration is relatively complex, resulting in difficulty in arranging multistage process. Essentially, GIS is applicable only for rapid processes controlled by gas film diffusion. The effect of LIS enhancing transfer is negligible; while it has the features of efficient micromixing and strong pressure fluctuation both which are resulted from the intensive interaction between the opposing streams and can promote process kinetics. All the features of IS, including GIS and LIS, have great potential of application. Reviewing the results of number investigations, mostly worked by the authors, a somewhat detailed introduction to the features of IS and several cases of its successful applications, such as wet FGD, preparation of ultrafine or nano powders, successful industrial application of large scale LIS reactors and crystallizers, etc, are described.
CRISPR-Cpf1 assisted genome editing of Corynebacterium glutamicum (2017)

Corynebacterium glutamicum is an important industrial metabolite producer that is difficult to genetically engineer. Although the Streptococcus pyogenes (Sp) CRISPR-Cas9 system has been adapted for genome editing of multiple bacteria, it cannot be introduced into C. glutamicum. Here we report a Francisella novicida (Fn) CRISPR-Cpf1-based genome-editing method for C. glutamicum. CRISPR-Cpf1, combined with single-stranded DNA (ssDNA) recombineering, precisely introduces small changes into the bacterial genome at efficiencies of 86-100%. Large gene deletions and insertions are also obtained using an all-in-one plasmid consisting of FnCpf1, CRISPR RNA, and homologous arms. The two CRISPR-Cpf1-assisted systems enable N iterative rounds of genome editing in 3N+4 or 3N+2 days. A proof-of-concept, codon saturation mutagenesis at G149 of γ-glutamyl kinase relieves L-proline inhibition using Cpf1-assisted ssDNA recombineering. Thus, CRISPR-Cpf1-based genome editing provides a highly efficient tool for genetic engineering of Corynebacterium and other bacteria that cannot utilize the Sp CRISPR-Cas9 system.
Application of ADS-B for airport surface surveillance (2002)

Automatic Dependent Surveillance Broadcast (ADS-B) is a function on an aircraft or ground vehicle that periodically broadcasts its state vector (horizontal and vertical position, horizontal and vertical velocity) and other information. The broadcast ADS-B message provides surveillance information to other users, principally Air Traffic Control (ATC) and aircraft/vehicle operators. The applications for ADS-B include ATC display of traffic, runway incursion detection and alerting, and Cockpit Display of Traffic Information (CDTI). The Federal Aviation Administration (FAA) and the National Aeronautics and Space Administration (NASA) are investigating the suitability of this technology to support these applications in the airport surface environment. NASA has recently tested ADS-B using 1090 MHz data transmission in an airport surface environment as part of the Low Visibility Landing and Surface Operations (LVLASO) program. This paper presents results of the ADS-B testing and an assessment of how well 1090 MHz ADS-B performs with respect to surveillance system requirements established by the International Civil Aviation Organization (ICAO) and RTCA. In addition, data collected from vehicle to vehicle tests is analyzed to determine how well on-board avionics can utilize ADS-B data.
Frequency Modulation of a Millimeter-wave IMPATT Diode Oscillator and Related Harmonic Generation Effects (1969)

In this paper we report the performance of a continuous wave millimeter-wave IMPATT diode oscillator with a wide-band tunability. The diode is mounted in an iris wafer circuit; its oscillation frequency can be modulated either by a varactor diode or by direct modulation of the IMPATT diode bias current. The oscillator has been successfully used as a millimeter-wave frequency deviator in an experimental pulse code modulation millimeter-wave system. We also report detailed measurements on subharmonic frequencies in IMPATT diode oscillators. Experimental results show that wide frequency tunability can be obtained with a circuit which provides an “idler” resonance at one-half the fundamental transit-time frequency. The results also show that by providing “idler” resonances at both the transit-time frequency and at one-half of the transit-time, the oscillation at 3/2 the transit-time frequency is enhanced and yields a useful output power of 2 mW at 86 GHz.
Day (2007)

Day Get access Alan Shapiro Alan Shapiro shapalan@gmail.com Search for other works by this author on: Oxford Academic Google Scholar Literary Imagination, Volume 10, Issue 1, 2008, Page 20, https://doi.org/10.1093/litimag/imm107 Published: 27 September 2007
A method for estimating optimal crystal cuts and propagation directions for excitation of piezoelectric surface waves (1968)

A criterion for judging the relative effeciency of excitation of piezoelectric surface waves as a function of crystal plate orientation and propagation direction is developed. This criterion is based on a velocity change upon application of a thin conducting sheet to the surface. Plots of surface wave velocity for various orientations of the crystal surface are presented as a function of propagation direction for the conducting sheet in contact with and infinitely far removed from the crystal surface. A plot of a typical velocity variation as a function of height of the conducting sheet is also presented. Evidence in support of the criterion of using velocity changes as an indicator of efficiency is presented in the form of mechanical displacement and electric potential plots for several orientations and propagation directions. All velocity displacements and potential calculations were carried out under the assumption that the crystal medium was lithium niobate.
Characterisation of a phase-sensitive detector (1989)

The phase-sensitive detector (PSD) operating particularly as a synchronous rectifier has an important role in many benchtop instruments, typical of which is the modern LCR component meter. The performance of the PSD determines the accuracy and frequency range of the overall instrument. Its characterisation by direct methods is particularly difficult to achieve by virtue of the necessity for an accurate knowledge of the relative phase between sine and switching waveforms at the PSD.The paper offers an alternative approach to characterisation of the PSD that circumvents the need for direct phase measurements. It calls for the use of a purpose designed sine-square generator which is relatively easy to achieve with today's technology. PSDs in the form of a buffered voltage-switching circuit and a track/hold circuit are examined in some detail. A statistical analysis is provided for the error bounds expected in the phase estimates.The work described can be readily adapted to improvements in phase measurement in existing LCR component meters. A technique called adaptive reference phase (ARP) is introduced for this purpose. This has particular relevance to capacitor measurements where accurate estimates of loss angle are at a premium.
Gene engineering of the adenovirus vector (2007)

The adenovirus vector is very attractive tool not only for the gene therapy but also for the basic sciences. However, because a construction method of this vector had been complex, only limited scientists had constructed and enjoyed the benefits. Recently, various methods were developed and the researchers came to be able to choose an efficient method, which is the COS-TPC method, or a concise procedure, which is the intact-genome transfection method (in vitro ligation method). Here we described not only these methods but also new method to construct the various Ads simultaneously using the recombinase-mediated cassette exchange (RMCE) by the site-specific recombinase. And also we want to refer the possibility to the worth of the vector, especially the vector of the expression-switch.
MONOSUBSTITUTED 2,2′-BIPYRIDINES (1994)

(1994). MONOSUBSTITUTED 2,2′-BIPYRIDINES. Organic Preparations and Procedures International: Vol. 26, No. 6, pp. 696-701.
Phase-transfer-catalyzed nucleophilic reactions of hydroxide ions at metal-bound carbon monoxide centers (1980)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPhase-transfer-catalyzed nucleophilic reactions of hydroxide ions at metal-bound carbon monoxide centersDonald J. Darensbourg, Brenda J. Baldwin, and Joseph A. FroelichCite this: J. Am. Chem. Soc. 1980, 102, 14, 4688–4694Publication Date (Print):July 1, 1980Publication History Published online1 May 2002Published inissue 1 July 1980https://pubs.acs.org/doi/10.1021/ja00534a022https://doi.org/10.1021/ja00534a022research-articleACS PublicationsRequest reuse permissionsArticle Views272Altmetric-Citations40LEARN 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
Loneliness and social isolation during the COVID-19 pandemic (2020)

Loneliness and social isolation are associated with adverse physical and psychological consequences which are particularly prevalent in older persons. During this unprecedented time of the COVID-19 pandemic, we must follow social distancing guidelines to protect ourselves and to reduce the spread of coronavirus. At the same time, it is crucial to maintain social connections with each other, especially with older persons, to help cope and reduce the negative consequences of loneliness and social isolation. It is important to develop new strategies (e.g. virtual health care and new government policy) to address loneliness and social isolation among older adults for the post-pandemic era.
A ubiquitin carboxyl extension protein secreted from a plant‐parasitic nematode <i>Globodera rostochiensis</i> is cleaved <i>in planta</i> to promote plant parasitism (2013)

Nematode effector proteins originating from esophageal gland cells play central roles in suppressing plant defenses and in formation of the plant feeding cells that are required for growth and development of cyst nematodes. A gene (GrUBCEP12) encoding a unique ubiquitin carboxyl extension protein (UBCEP) that consists of a signal peptide for secretion, a mono-ubiquitin domain, and a 12 amino acid carboxyl extension protein (CEP12) domain was cloned from the potato cyst nematode Globodera rostochiensis. This GrUBCEP12 gene was expressed exclusively within the nematode's dorsal esophageal gland cell, and was up-regulated in the parasitic second-stage juvenile, correlating with the time when feeding cell formation is initiated. We showed that specific GrUBCEP12 knockdown via RNA interference reduced nematode parasitic success, and that over-expression of the secreted Gr(Δ) (SP) UBCEP12 protein in potato resulted in increased nematode susceptibility, providing direct evidence that this secreted effector is involved in plant parasitism. Using transient expression assays in Nicotiana benthamiana, we found that Gr(Δ) (SP) UBCEP12 is processed into free ubiquitin and a CEP12 peptide (GrCEP12) in planta, and that GrCEP12 suppresses resistance gene-mediated cell death. A target search showed that expression of RPN2a, a gene encoding a subunit of the 26S proteasome, was dramatically suppressed in Gr(Δ) (SP) UBCEP12 but not GrCEP12 over-expression plants when compared with control plants. Together, these results suggest that, when delivered into host plant cells, Gr(Δ) (SP) UBCEP12 becomes two functional units, one acting to suppress plant immunity and the other potentially affecting the host 26S proteasome, to promote feeding cell formation.
TRANSMISSION OF MULTIPLE DRUG-RESISTANT TUBERCULOSIS: REPORT OF A SCHOOL AND COMMUNITY OUTBREAK (1981)

An outbreak of tuberculosis in 1976 was caused by mycobacteria resistant to isoniazid (INH), streptomycin (SM), and para-aminosalicylic acid (PAS). High rates of infection associated with exposure to the index case suggested that transmission of resistant organisms had occurred, and the subsequent appearance of bacteriologically proven INH-SM-PAS-resistant tuberculosis in four school contacts of the index case confirmed this fact. Retrospective investigation revealed that the school outbreak was part of an ongoing community outbreak dating back at least to 1964. Through the use of case histories, drug-susceptibility patterns, and phage typing, 15 documented and seven presumed INH-SM-PAS-resistant, epidemiologically linked cases were found; two of these persons died of tuberculosis. Six additional cases with INH-SM-PAS resistance that could not be epidemiologically linked to the outbreak were also identified. The potential of drug-resistant strains for causing disease in humans should not underestimated.
Solving Direct and Inverse Thermoelasticity Problems by Means of Trefftz Base Functions for Finite Element Method (2011)

Abstract The Trefftz functions method has been developed very quickly. The paper presents the application of this method to solving direct and inverse problems of elasticity and thermoelasticity. The system of equations for displacements is reduced to a system of wave equations. Then the wave polynomials (Trefftz functions for wave equation) as base functions for several variants of Finite Element Method are used. In the paper, continuous FEMT and substructuring are considered. In the case of thermoelasticity, the temperature field occurs as inhomogeneity in one of the wave equations. It is shown how to get the particular solution in 2D and 3D. When using FEMT, the difference of solutions between the elements has to be minimized. The mechanical energy of the body depends on the velocity of the displacements. Therefore, the difference of the velocities between the elements is also minimized – it is a kind of physical regularization. The quality of the approximate solutions of direct and inverse problem was verified on the test example. Keywords: FEMInverse problemsSubstructuringThermoelasticityTrefftz functions Acknowledgments This work was carried out in the framework of the research project No. N513 003 32/0541, which was financed by the resources for the development of science in the years 2007–2009.
Map or Sacred Icon?: The Spatial Characteristics of Aboriginal Land Paintings (2007)

Aboriginal land paintings are a distinct sub-group of Aboriginal art which have often been considered as maps since they use a vertical perspective and clearly contain spatial information. However, if we consider their relationship to the actual terrain and their meaning function within Aboriginal society, then we can see that they are not maps but rather sacred images depicting spiritual relationships. They are thus closer in nature to the icons of Byzantine Christianity or to the mandalas of Tibetan Buddhism.
Design brief: Stanford University (2000)

article Free Access Share on Design brief: Stanford University Author: Terry Winograd Stanford Univ. Stanford Univ.View Profile Authors Info & Claims InteractionsVolume 7Issue 2March-April 2000 pp 66–69https://doi.org/10.1145/330678.330809Published:01 March 2000Publication History 1citation808DownloadsMetricsTotal Citations1Total Downloads808Last 12 Months92Last 6 weeks21 Get Citation AlertsNew Citation Alert added!This alert has been successfully added and will be sent to:You will be notified whenever a record that you have chosen has been cited.To manage your alert preferences, click on the button below.Manage my Alerts New Citation Alert!Please log in to your account Save to BinderSave to BinderCreate a New BinderNameCancelCreateExport CitationPublisher SiteView all FormatsPDF