gebhart/patrepeval huggingface dataset:
MIMO for DVB-NGH, the next generation mobile TV broadcasting [Accepted From Open Call] (2013)

DVB-NGH (Digital Video Broadcasting - Next Generation Handheld) is the next generation technology for mobile TV broadcasting, which has been developed by the DVB project with the most advanced transmission technologies. DVB-NGH is the first broadcasting standard to incorporate multiple-input multiple-output (MIMO) as the key technology to overcome the Shannon limit of single antenna communications. MIMO techniques can be used to improve the robustness of the transmitted signal by exploiting the spatial diversity of the MIMO channel, but also to achieve increased data rates through spatial multiplexing. This article describes the benefits of MIMO that motivated its incorporation in DVB-NGH, reviews the MIMO schemes adopted, and discusses some aspects related to the deployment of MIMO networks in DVB-NGH. The article also provides a feature comparison with the multi-antenna techniques for 3GGP's LTE/LTE-Advanced for cellular networks. Finally, physical layer simulation results calibrated within the DVB-NGH standardization process are provided to illustrate the gain of MIMO for the next generation of mobile TV broadcasting.
Randomized study of the safety and clinical utility of rotational angiography versus standard angiography in the diagnosis of coronary artery disease (2004)

This study evaluates the safety and clinical utility of rotational angiography in the diagnosis of coronary artery disease. High-speed rotational angiography is a newly available angiographic modality that gives a dynamic multiple-angle perspective of the coronary tree during a single contrast injection. We prospectively randomized 56 patients referred for diagnostic coronary angiography to either standard or rotational angiography. Contrast and radiation utilization were compared between the two groups. The number of additional cine acquisitions needed was used to determine adequacy of the diagnostic study protocol. Rotational angiography was successfully completed in all subjects. There was a 33% reduction in contrast utilization in the rotational group as compared to the standard group (35.6 +/- 12.6 vs. 52.8 +/- 10.7 ml, respectively; P < 0.0001). Additionally, there was a 28% reduction in total radiation exposure in the rotational group as compared to the standard group (39.0 +/- 18.5 vs. 53.9 +/- 23.4 Gycm(2), respectively; P = 0.01). Total whole-body radiation exposure to the primary operator was 144 mrem with rotational angiography and 170 mrem with standard angiography. Procedure time tended to be shorter for rotational angiography (353.9 +/- 146.7 vs. 396.8 +/- 165.8 s; P = 0.3). Rotational coronary angiography can be rapidly performed in any patient and provides a significant reduction in contrast and radiation utilization while at the same time providing adequate angiographic data to complement or replace standard coronary angiography in the evaluation of coronary artery disease.
Product information model and system integration based on generalized CAD (2010)

A product information model based on STEP, which mainly contains five parts such as general information model, structure information model, shape description model, physical feature model and management information model, has been studied. Its description method and exchange mode of neutral file are also researched. The model has the features of integrality, consistency, variety, flexibility and neutral mechanism. When used into the application instance of integration between CAD and PDM system, it has been proved that the model and neutral mechanism can help to implement integration of generalized CAD systems.
Isolation, Identification, and Synthesis of the Sex Attractant of Gypsy Moth (1960)

The extremely potent sex attractant of the female gypsy moth has been isolated in pure form and identified as dextrorotatory 10-acetoxy-1-hydroxy-cis-7-hexadecene. The dl-form of the attractant has been synthesized.
Fine Mapping of a Quantitative Trait Locus for Twinning Rate Using Combined Linkage and Linkage Disequilibrium Mapping (2002)

A novel and robust method for the fine-scale mapping of genes affecting complex traits, which combines linkage and linkage-disequilibrium information, is proposed. Linkage information refers to recombinations within the marker-genotyped generations and linkage disequilibrium to historical recombinations before genotyping started. The identity-by-descent (IBD) probabilities at the quantitative trait locus (QTL) between first generation haplotypes were obtained from the similarity of the marker alleles surrounding the QTL, whereas IBD probabilities at the QTL between later generation haplotypes were obtained by using the markers to trace the inheritance of the QTL. The variance explained by the QTL is estimated by residual maximum likelihood using the correlation structure defined by the IBD probabilities. Unlinked background genes were accounted for by fitting a polygenic variance component. The method was used to fine map a QTL for twinning rate in cattle, previously mapped on chromosome 5 by linkage analysis. The data consisted of large half-sib families, but the method could also handle more complex pedigrees. The likelihood of the putative QTL was very small along most of the chromosome, except for a sharp likelihood peak in the ninth marker bracket, which positioned the QTL within a region <1 cM in the middle part of bovine chromosome 5. The method was expected to be robust against multiple genes affecting the trait, multiple mutations at the QTL, and relatively low marker density.
Generation of functionally active suppressor cells by haemorrhage and haemorrhagic serum. (1988)

Mitogen (PHA)-induced proliferation of peripheral blood mononuclear cells (PBMC) was reduced by more than 70% 2 h after the haemorrhage of 30% of blood volume. Experiments using isolated macrophages and lymphocytes showed that post-haemorrhage macrophages were functionally normal and that lymphocytes were responsible for the observed haemorrhage-induced depression of proliferative response. Surface marker determinations showed that at least some, if not all, of the haemorrhage-induced suppressor cells are of the OX8+ phenotype. Exposure of PBMCs to serum from bled animals also brought about activation of OX8+ suppressor T cells. These results suggest that the depressed proliferative response of PBMCs induced by haemorrhage or by exposing the cells to haemorrhagic serum (serum from bled animals) is due to the activation of OX8+ suppressor T cells.
Anomalous Field‐Oxide‐Ungrowth Phenomenon in Recessed Local Oxidation of Silicon Isolation Structure (1997)

An anomalous field‐oxide‐growth phenomenon in a recessed local oxidation of silicon (LOCOS) structure with a nitride spacer (R‐LOCOS), in which the field oxide growth at the center of the opening area is suppressed when isolation spacing is small, is reported. The field‐oxide‐ungrowth (FOU) phenomenon was found to have strong structural dependence, on the aspect ratio of the opening area, active pattern density, and silicon recess depth. By changing process conditions, such as dry etching and wet cleaning conditions, however, the FOU was not affected. Since the tendency of the FOU occurrence was coincident with that of the microloading effect in reactive ion etching, the FOU was believed to originate from a residue on the exposed silicon surface after the etching process. When silicon was not recessed, the FOU was not observed at any of the structural variations. From a two‐dimensional simulation of field oxidation, it has been found that in a nonrecessed LOCOS structure, a residue on the silicon surface does not significantly affect field oxide growth, but in the recessed LOCOS structure, field oxide growth is very sensitive to the existence of a residue on the recessed surface. Thus, to successfully use the recessed LOCOS structure with a subquarter micron design rule avoiding the occurrence of the FOU, structural factors that include an active pattern layout should be carefully chosen.
Decoupling of Fluctuating Power in Single-Phase Systems Through a Symmetrical Half-Bridge Circuit (2014)

Single-phase ac/dc or dc/ac systems are inherently subject to the harmonic disturbance that is caused by the well-known double-line frequency ripple power. This issue can be eased through the installation of bulky electrolytic capacitors in the dc link. Unfortunately, such passive filtering approach may inevitably lead to low power density and limited system lifetime. An alternative approach is to use active power decoupling so that the ripple power can be diverted into other energy storage devices to gain an improved system performance. Nevertheless, all existing active methods have to introduce extra energy storage elements, either inductors or film capacitors in the system to store the ripple power, and this again leads to increased component costs. In view of this, this paper presents a symmetrical half-bridge circuit which utilizes the dc-link capacitors to absorb the ripple power, and the only additional components are a pair of switches and a small filtering inductor. A design example is presented and the proposed circuit concept is also verified with simulation and experimental results. It shows that at least ten times capacitance reduction can be achieved with the proposed active power decoupling method, and both the input current and output voltage of the converter can be well regulated even when very small dc-link capacitors are employed.
Diffraction Grating Beam Sampling Technology. (1973)

Grating samples for use as laser beam sampling components were developed and tested. In addition, production techniques for these gratings were investigated. Initial evaluation test of methods of production other than the conventional ruling technique showed that etching and electropolishing techniques were not as promising as ionic polishing. Ionic polishing techniques were highly successful both on molybdenum and gold sample gratings. The grating samples were tested for scatter, absorption, microscopic surface quality and macroscopic performance, including diffraction efficiency. Comparative measurements revealed little difference in performance between ruled and ion-polished gratings; however, ionic polishing techniques were found to yield more uniform gratings at relatively lower cost. (Author)
Interferometric plasmonic imaging and detection of single exosomes (2018)

Exosomes play an important role in numerous cellular processes. Fundamental study and practical use of exosomes are significantly constrained by the lack of analytical tools capable of physical and biochemical characterization. In this paper, we present an optical approach capable of imaging single exosomes in a label-free manner, using interferometric plasmonic microscopy. We demonstrate monitoring of the real-time adsorption of exosomes onto a chemically modified Au surface, calculating the image intensity, and determining the size distribution. The sizing capability enables us to quantitatively measure the membrane fusion activity between exosomes and liposomes. We also report the recording of the dynamic interaction between exosomes and antibodies at the single-exosome level, and the tracking of hit-stay-run behavior of exosomes on an antibody-coated surface. We anticipate that the proposed method will contribute to clinical exosome analysis and to the exploration of fundamental issues such as the exosome-antibody binding kinetics.
Interobserver Agreement of Heidelberg Retina Tomograph Parameters (1999)

The interobserver agreement for the HRT parameters was substantial to almost perfect, indicating that the HRT results as defined by the five observers were interchangeable.
Challenges of Making Outdoor Augmented Reality Games Playable (2003)

History has shown computer technology and society acceptance of that technology has been driven in part by the entertainment computing industry. One &quot;killer application&quot; domain for advanced computing and communicating techniques for wearable information playing will be a form of outdoor augmented reality gaming. This paper will present a number of possible mobile outdoor augmented reality gaming concepts. The paper will go on to explore a number of challenges to make these games a viable in terms of playability, safety, and near-term technology. A discussion of the results we have found from our ARQuake first person outdoor augmented reality game will be presented.
SOLUBILITY OF HOP α- AND β-ACIDS IN LIQUID CARBON DIOXIDE*: ADDENDUM: SOLUBILITY OF PESTICIDES IN LIQUID CARBON DIOXIDE (1980)

A procedure is described for determining the solubility of hop α- and β-acids in liquid carbon dioxide. Results have shown that the optimum temperature range for the extraction of hops with liquid carbon dioxide is +5 to +10°C. A number of pesticides used by hop growers are appreciably soluble in liquid carbon dioxide.
3-D Numerical Study of Flow Mixing in Front of SCR for Different Injection Systems (2007)

<div class="htmlview paragraph">The urea Selective Catalytic Reduction (SCR) exhaust system has been proved to be the reliable aftertreatment device with the capability of reducing tail pipe NOx emission by 75% to 90%, HC by 50% and Particulate Matter (PM) by 30%. Constrained by increasingly stringent packaging envelope, flow mixing in front of substrate is becoming one of the major concerns to achieve ideal performance of higher NOx conversion and lower ammonia (NH3) slip. Three dimensional CFD simulations are performed in current study to investigate flow mixing phenomenon in a SCR system. First, for a traditional tube injector with single or multiple nozzles, the effects of mass flow rates of injected NH3 and exhaust gas on flow mixing and pressure loss are investigated. Then, a concept of ring shape injector with multiple nozzles are initiated and built for 3-D CFD simulations. The comparisons of flow mixing index and injection pressure are made between two type injectors. Next, the locations of nozzles in ring injector are studied and the effect on flow mixing index and NH3 injection pressure are addressed. The optimal nozzle locations are found. Finally, the effect of a swirling flow, which can be generated by a span element or flow mixer in front of substrate, is studied and the enhancement on flow mixing index is discussed.</div>
Metalation as a Side Reaction in the Preparation of Organolithium Compounds (1939)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMetalation as a Side Reaction in the Preparation of Organolithium CompoundsHenry. Gilman, Wright. Langham, and Arthur L. JacobyCite this: J. Am. Chem. Soc. 1939, 61, 1, 106–109Publication Date (Print):January 1, 1939Publication History Published online1 May 2002Published inissue 1 January 1939https://pubs.acs.org/doi/10.1021/ja01870a036https://doi.org/10.1021/ja01870a036research-articleACS PublicationsRequest reuse permissionsArticle Views1309Altmetric-Citations113LEARN 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
Wind power forecasting based on time series and SVM (2012)

The accurate wind power forecasting can relieve the adverse effects of wind power plants on power systems and enhance the competitive ability of wind power plants in electricity markets.A wind power forecasting method is proposed based on time series method and support vector machine(SVM).The mathematical model was built by time series method.The factors which have significant impacts on the wind power were selected as SVM's inputs.In order to improve forecasting accuracy,a method based on time series trace evolution was used to find SVM training samples which similar to the power at the forecasting point.The actual examples prove the improvement of wind power forecasting accuracy by using the time series-SVM method.
L-Aspartate α-Decarboxylase in a Cell-free System from Escherichia coli (1971)

The properties of L-aspartate α-decarboxylase [EC 4.1.1.11] in a crude extract and in a partially purified preparation from E. coli B were studied. 1. Adaptation of the bacteria to substrate by growth in synthetic medium containing 1.5% L-aspartic acid and 0.5% L-glutamic acid before culture in the same medium greatly increased enzyme production. Enzymatic activity increased with bacterial growth to a maximum in the later stage of the logarithmic phase and decreased promptly toward the beginning of the stationary phase, indicating that the enzyme was formed to supply β-alanine required during bacterial growth for biosynthesis of pantothenic acid. Formation of β-alanine from uracil by adapted bacteria was rather slight. 2. The optimum pH of this enzyme was 5.5 and the optimum temperature was rather broad, being 37–47°C. With a partially purified enzyme preparation the Michaelis constant was calculated to be 1.5×10−3M. 3. Pyridoxal 5'-phosphate, α-keto acids and Co2+ and Mg2+ ions activated the enzyme, and their effects were additive. A combination of pyridoxal 5'-phosphate, α-keto-glutaric acid and Co2+ enhanced the enzymatic activity about 13-fold. Cyanide, fluoride, Ag+, Hg2+, semicarbazide, thiourea and isonicotinic acid hydrazide inhibited the decarboxylase.
Nanomanufacturing of Tobacco Mosaic Virus-Based Spherical Biomaterials Using a Continuous Flow Method (2014)

Nanomanufacturing of nanoparticles is critical for potential translation and commercialization. Continuous flow devices can alleviate this need through unceasing production of nanoparticles. Here we demonstrate the scaled-up production of spherical nanoparticles functionalized with biomedical cargos from the rod-shaped plant virus tobacco mosaic virus (TMV) using a mesofluidic, continued flow method. Production yields were increased 30-fold comparing the mesofluidic device versus batch methods. Finally, we produced MRI contrast agents of select sizes, with per particle relaxivity reaching 979,218 mM<sup>-1</sup> s<sup>-1</sup> at 60 MHz. These TMV-based spherical nanoparticle MRI contrast agents are in the top echelon of relaxivity per nanoparticle.
An Open-framework Strontium Phosphate Containing a Novel 412 Cages (2010)

A novel strontium phosphite open-framework H2[Sr6(HPO3)7] (denoted as ZZ-2, ZZ = Zhen Zhu) was hydrothermally synthesized by using isophorondiamine (IPDA) as the trial structure-directing agent. Single crystal structure refinement discloses that ZZ-2 crystallizes in the trigonal space group R-3 with the cell parameters of a = 16.410(2) Å, b =16.410(2) Å, c = 6.8651(14) Å, ? = 114.61(5)°, ? = 90°, V = 1601.0(5) Å3, Z = 3. The structure of ZZ-2 is constructed by eight coordinated SrO8 and HPO3 pseudo pyramids. A novel 412 cages existed in the structure with a proton located in the center of the cage. the P-H bonds stretch in all cages, hydrogen proton at the center of the cage to balance framework.
Assignment of the 5HT7 receptor gene (HTR7) to chromosome 10q and exclusion of genetic linkage with tourette syndrome (1995)

A novel serotonin receptor designated 5HT7 (genetic locus HTR7) was cloned in 1993. This receptor has interesting properties related to ligand affinity and CNS distribution that render HTR7 a very interesting candidate gene for neuropsychiatric disorders. We mapped this gene, first by physical methods and then by genetic linkage. First, we made a tentative assignment to chromosome 10, based on hybridization of an HTR7 probe to a Southern blot of DNA from somatic cell hybrids. We then identified a genetic polymorphism at the HTR7 locus. We identified one extended pedigree where the polymorphism segregated. Using the LIPED computer program for pairwise linkage analysis, we confirmed the assignment of the gene to chromosome 10, specifically 10q21-q24, based on a lod score of 5.37 at 0% recombination between HTR7 and D10S20 (a chromosome 10 reference marker). Finally, we excluded genetic linkage between this locus and Tourette syndrome under a reasonable set of assumptions.
Accumulation of S-adenosylmethionine by molds. (1974)

Aspergillus tamarii accumulated about 20μmoles of S-adenosylmethionine (SAM) in 1g of dry cells when cultured secondarily in a medium containing more than 10MM of L-methionine. The accumulation was not so high when L-methionine was replaced by D-methionine. Addition of nucleic acid-related substances was not effective for the accumulation. Addition of D, L-ethionine in place of methionine caused accumulation of S-adenosylethionine (SAE) in place of SAM. Among 100 strains of molds tested, a number of strains belonging to the genera Penicillium, Aspergillus, Rhizopus and Mucor could accumulate SAM in their mycelia. Especially Mucor jansseni had the highest ability; it accumulated 45μmoles of SAM in 1g of dry cells.
mRNA expression patterns of insulin‐like growth factor system components in human neuroendocrine tumours (2000)

The described differences of the expression patterns of the IGF system components in neuroendocrine tumour subtypes suggest tumour type-dependent different pathways in tumour growth control by IGF system components.
Capability and Limitations of Electrocardiography and Magnetocardiography (1972)

The capabilities and limitations of electrocardiography and magnetocardiography are discussed. Representing the electrical activity of the heart by an impressed current density ji, electrocardiography determines the spherical harmonic multipole expansion of its divergence (flux source), while magnetocardiography determines the spherical harmonic multipole expansion of the radial component of its curl (vortex source).
Synthesis and Rat Liver Microsomal Metabolism of 2-Chlorodibenzo[<i>A,L</i>]Pyrene and 10-Chlorodibenzo[<i>A,L</i>]-Pyrene (1996)

Abstract Chlorinated PAHs have been identified as a class of potent genotoxic environmental contaminants. Dibenzo[a,l]pyrene (DB[a,l]P) is a potent tumorigenic environmental pollutant. In this paper, we report the synthesis, rat liver microsomal metabolism, and determination of the effect of the chloro substituent on metabolism of DB[a,l]P,2-Cl-DB[a,l]P, and 10-Cl-DB[a,l]P. The metabolism of DB[a,l]P, 2-Cl-DB[a,l]P, and 10-Cl-DB[a,l]P produced trans-8,9-dihydrodiol, trans-11,12-dihydrodiol, and 7-hydroxyl metabolites as major products. The trans-dihydrodiols of DB[a,l]P and 2-Cl-DB[a,l]P preferentially adopt a quasidiequatorial conformation, and the 10-Cl-DB[a,l]P trans-dihydrodiols adopt a quasidiaxial conformation. Based on the yield and conformation of trans-11,12-dihydrodiol, we predict the biological activities of these compounds are: DB[a,l]P > 2-Cl-DB[a,l]P ≫ 10-Cl-DB[a,l]P.