gebhart/patrepeval huggingface dataset:
A Novel 220-GHz GaN Diode On-Chip Tripler With High Driven Power (2019)

This letter presents our study on a high power 220 GHz frequency tripler based on a pair of GaN planar Schottky barrier diode chain chips. In the proposed frequency tripler, the pair of diode chips was directly mounted across the metal diaphragm in parallel with the opposite polarisation inside the rectangular waveguide. The RF field is tuned to its hot-spot, coupling directly onto the diode chains, turning on a diode chain at a time in an alternative manner. Unlike the traditional ones, in order to achieve better heat dissipation, the diodes are directly connected with the metal block. Benefitting from a better heat dissipation and the power endurance capacity of GaN material, the proposed tripler can work well under a watt level input power. The simulated tripler frequency conversion performance agrees with the measurement results very well. In addition, the experiments show that the frequency tripler can endure a maximum input power of 1.1 W. In addition, the output power of this frequency tripler is 17.5 mW at 219.5 GHz driven by 900 mW input power with the best efficiency of 1.93%.
Monocyte chemotaxis and chemotactic cytokine release after exposure to hydroxyethyl starch (1992)

Hydroxyethyl starch (HES) is commonly used in leukapheresis and infused as an alternative to blood components for the treatment of hypotension due to hemorrhage and trauma. Its prolonged intravascular persistence and retention in tissue raise concerns about possible effects on humoral and cell-mediated immunity and white cell (WBC) locomotion, particularly in volunteer WBC donors or in severely burned individuals with immunologic depression and increased risk for infection. This study evaluated the effect of HES on human monocyte migration and chemotaxis and the production of antigen- and mitogen-induced WBC-derived chemotactic cytokine. A bioassay was developed to quantitate the neutrophil chemotactic activity of a cytokine generated by mononuclear WBCs stimulated in vitro by phytohemagglutinin or tuberculin protein. The time- and dose-dependent generation of the chemotactic cytokine was not affected by the presence of HES. HES by itself did not induce the generation of this cytokine, nor were human monocyte chemotaxis and spontaneous migration significantly changed by exposure to HES. These results, with those of other investigators, suggest that HES is a safe red cell-sedimenting agent for leukapheresis and an alternative to the use of blood components in shock resuscitation.
Molecular Pressure Sensors (2007)

Pressure-responsive macromolecules that change their conformation in response to variations in the film pressure can be used as model systems for studying the mechanism of the fluid transport on nanometer length scales. The ability to visualize pressure-sensitive macromolecules in motion enables quantitative measurements of the local film pressure and the friction coefficient with the substrate.
A comparative study of linear feature transformation techniques for automatic speech recognition (2002)

Although widely used, there are still open questions concerning which properties of linear discriminant analysis (LDA) account for its success in many speech recognition systems. In order to gain more insight into the nature of the transformation we compare LDA with mel-cepstral feature vectors with respect to the following criteria: decorrelation and ordering property; invariance under linear transforms; automatic learning of dynamical features; and data dependence of the transformation.
Characterization of the short isoform of Helios overexpressed in patients with T‐cell malignancies (2006)

In an earlier report, we demonstrated overexpression of a short isoform of Helios, Hel-5, which lacks three of four N-terminal zinc fingers, in patients with adult T-cell leukemia/lymphoma. Here, we characterized Hel-5 using immunoprecipitation, and gel shift and luciferase promoter assays, and found that Hel-5 lacks the repressor function observed with a full-length isoform of Helios. Moreover, Hel-5 associates with the full-length isoforms of the Ikaros gene family, Ikaros, Aiolos and Helios, and inhibits their DNA binding activity when present in excess, leading to dominant-negative effects on the full-length isoforms of the Ikaros gene family. Our results suggest a critical role for Helios in the mechanism of leukemogenesis.
Computing for the Next-Generation Automobile (2012)

Innovative computational technologies developed by automotive companies and research institutes in Japan are making cars greener, smarter, and more connected.
Thermal-Aware Floorplanning Using Genetic Algorithms (2005)

In this work, we present a genetic algorithm based thermal-aware floorplanning framework that aims at reducing hot spots and distributing temperature evenly across a chip while optimizing the traditional design metric, chip area. The floorplanning problem is formulated as a genetic algorithm problem, and a tool called HotSpot is used to calculate floorplanning temperature based on the power dissipation, the physical dimension, and the location of modules. Area and/or temperature optimizations guide the genetic algorithm to generate the final fittest solution. The experimental results using MCNC benchmarks and a face detection chip show that our combined area and thermal optimization technique decreases the peak temperature sufficiently while providing floorplans that are as compact as the traditional area-oriented techniques.
Preneoplastic mammary tumor markers: Cripto and amphiregulin are overexpressed in hyperplastic stages of tumor progression in transgenic mice (1999)

Amphiregulin (Ar) and Cripto (Cr) are autocrine growth factors for mammary cells and both have been observed to exhibit high expression in human mammary tumors, in contrast with adjacent tissues. To investigate whether Ar and Cr play roles in the progression of mammary cell proliferation to unregulated growth and tumor formation, the levels of expression were examined in transgenic mice (TGM) that over-express several different oncogenes: MMTV-Polyoma virus middle T antigen (MMTV-PyMT), MMTV-c-ErbB2 (c-neu, HER2) and MT-hTGFα. These transgenic mice all produce mammary tumors but with different rates of progression. The levels of Ar were induced up to 10-fold in association with hyperplasia in 2 of the TGM. Cr overexpression was consistently observed in hyperplastic mammary glands in all the animal models, decreasing in overt tumors in 2 of the TGM models. In MMTV-PyMT mammary glands, the levels of Cr expression rose 7- to 10-fold in hyperplastic tissue and 25-fold the levels in tumors compared to age-matched transgene negative mice. Ar and especially Cr thus should have potential value as markers of preneoplastic change in mammary tissue. Int. J. Cancer 81:588–591, 1999. © 1999 Wiley-Liss, Inc.
An empirical study of malware evolution (2009)

The diversity, sophistication and availability of malicious software (malcode/malware) pose enormous challenges for securing networks and end hosts from attacks. In this paper, we analyze a large corpus of malcode meta data compiled over a period of 19 years. Our aim is to understand how malcode has evolved over the years, and in particular, how different instances of malcode relate to one another. We develop a novel graph pruning technique to establish the inheritance relationships between different instances of malcode based on temporal information and key common phrases identified in the malcode descriptions. Our algorithm enables a range of possible inheritance structures. We study the resulting ldquolikelyrdquo malcode families, which we identify through extensive manual investigation. We present an evaluation of gross characteristics of malcode evolution and also drill down on the details of the most interesting and potentially dangerous malcode families.
A Precision Direct Reading Densitometer (1942)

Get PDF Email Share Share with Facebook Tweet This Post on reddit Share with LinkedIn Add to CiteULike Add to Mendeley Add to BibSonomy Get Citation Copy Citation Text Monroe H. Sweet, "A Precision Direct Reading Densitometer," J. Opt. Soc. Am. 32, 400-400 (1942) Export Citation BibTex Endnote (RIS) HTML Plain Text Citation alert Save article
High Efficiency Wideband Aperture-Coupled Stacked Patch Antennas Assembled Using Millimeter Thick Micromachined Polymer Structures (2010)

Micromachined stacked patch antenna devices with high efficiency and wideband characteristics are reported. Polymer based fabrication and assembly processes have been developed in order to produce the stacked suspended antenna devices. Millimeter thick micromachined SU8 based polymer rings are used to create air gaps between the patches and the microwave substrate for optimized high efficiency operation. Thin film liquid crystal polymer (LCP) and polyimide substrates are used to support the radiating and parasitic patch elements. The polymer rings also form cavities to protect the patches and substrate from moisture and dust. The antenna structures are fabricated in layers and then assembled to obtain 3D devices. The antenna devices have been designed using an electromagnetic simulation package. The aperture coupled devices are impedance matched for wideband operation. RF measurements show wideband operation of the devices and the results are in good agreement with that of simulation. Typical gain and bandwidths are 7.8 dBi and 39% for a microstrip fed antenna device while they are 7.6 dBi and 44% for a CPW fed device. The predicted efficiency from the results of simulation is above 97% for the antenna devices.
A survey to determine federal agency needs for a role-based access control security product (2002)

This paper is an overview of a study done for the National Institute of Standards and Technology (NIST) to determine what potential market there is for a role-based access control (RBAC) product. Thirty security managers from 27 large civil federal organizations were interviewed using a six-page questionnaire. Their security needs were identified and it was concluded that these organizations desired an RBAC product to complement their mandatory and discretionary access control products. The results of the main reference study (Smith et al., 1996) will be used by NIST personnel as an input to the formulation of standards for future RBAC products.
State of art survey for design of medium frequency high power transformer (2016)

Medium and high frequency, high power transformers play an important role in footprint reduction along with their functions of galvanic isolation, and voltage transformation in all high power converters typically used in traction power systems, offshore wind plant power converters, and solid state transformer based distribution system grids. This state of art report analysis the various materials and design tradeoffs that govern the electromagnetic behavior and loss mechanisms of the medium frequency transformer applications. Typical winding and core geometries that have been reported extensively in the literature are described, and some design procedures and flow charts are analyzed including specific optimization routines. Estimation of core loss at high frequency using Steinmetz method and other modified methods are shown in detail. Thermal modelling including static and dynamic methods available in literature are put forward with references to thermal management methods. FEM analysis for electromagnetic behavior is described and couple of commercially available tools and their limitations are analyzed. Different challenges of relevance are included in different sections and brief comparisons are drawn. Design tools which are available is given a preview and limitations are drawn. A comprehensive literature survey was done and included in the paper in the reference section.
Boosting Trees for Anti-Spam Email Filtering (2001)

This paper describes a set of comparative experiments for the problem of automatically filtering unwanted electronic mail messages. Several variants of the AdaBoost algorithm with confidence-rated predictions [Schapire & Singer, 99] have been applied, which differ in the complexity of the base learners considered. Two main conclusions can be drawn from our experiments: a) The boosting-based methods clearly outperform the baseline learning algorithms (Naive Bayes and Induction of Decision Trees) on the PU1 corpus, achieving very high levels of the F1 measure; b) Increasing the complexity of the base learners allows to obtain better ``high-precision'' classifiers, which is a very important issue when misclassification costs are considered.
A New Approach to Compute CNNs for Extremely Large Images (2017)

CNN (Convolution Neural Network) is widely used in visual analysis and achieves exceptionally high performances in image classification, face detection, object recognition, image recoloring, and other learning jobs. Using deep learning frameworks, such as Torch and Tensorflow, CNN can be efficiently computed by leveraging the power of GPU. However, one drawback of GPU is its limited memory which prohibits us from handling large images. Passing a 4K resolution image to the VGG network will result in an exception of out-of-memory for Titan-X GPU. In this paper, we propose a new approach that adopts the BSP (bulk synchronization parallel) model to compute CNNs for images of any size. Before fed to a specific CNN layer, the image is split into smaller pieces which go through the neural network separately. Then, a specific padding and normalization technique is adopted to merge sub-images back into one image. Our approach can be easily extended to support distributed multi-GPUs. In this paper, we use neural style network as our example to illustrate the effectiveness of our approach. We show that using one Titan-X GPU, we can transfer the style of an image with 10,000×10,000 pixels within 1 minute.
Completely fused tapered couplers: comparison of theoretical and experimental results (1986)

Completely fused single-mode fibre couplers, characterised by an almost circular cross-section at the waist, have been fabricated. An analytic model which takes into consideration the taper and variable aspect ratio of the coupler has been developed. Good agreement is obtained between the theoretical and experimental values.
Identification of a nicotinic acid receptor: is this the molecular target for the oldest lipid-lowering drug? (2004)

Nicotinic acid has been used clinically for over 40 years in the treatment of dyslipidemia, producing a desirable normalization of a range of cardiovascular risk factors. The precise mechanism of action of nicotinic acid is unknown, although it is believed that activation of a Gi-type G protein-coupled receptor, resulting in the inhibition of adipocyte lipolysis, may contribute. This review describes the identification of this elusive receptor, and outlines the evidence suggesting that this may be the molecular target for the clinical effects of nicotinic acid.
Dietary mineral requirements of fish and marine crustaceans (1996)

Abstract Information concerning mineral nutrition of fish and marine crustaceans is rather limited compared to that available for terrestrial animals; however, significant advances have been made in recent years. This article summarizes pertinent information about mineral nutrition of fish and marine crustaceans, including classification and general functions of the minerals; dietary essentiality and/or quantitative requirements; bioavailability and dietary interactions; and general recommendations for dietary supplementation. Dietary requirements for approximately ten minerals (calcium, copper, iodine, iron, magnesium, manganese, phosphorus, potassium, selenium, and zinc) have been identified for fish, and seven minerals (calcium, copper, phosphorus, potassium, magnesium, selenium, and zinc) have been recommended for inclusion in penaeid shrimp and lobster feeds. Based on current literature, it is clear that when evaluating the dietary essentiality of a mineral, not only growth must be evaluated, but also tissue stores, biochemical indicators (e.g., enzyme reaction rates), and effects on the general development of the animal should be assessed. Due to limited studies concerning dietary mineral requirements of marine fish and crustaceans, methodologies and requirement estimates for other species are recommended as guides for research with marine fish and crustaceans. Key words: mineralsdietfishshrimp Notes The University of Texas Contribution No. 937.
ChemInform Abstract: The Catalytic Amination of Alcohols (2012)

Abstract Review: 145 refs.
Thermal Expansivities and Temperature Coefficients of Refractive Indices for Molten Salts (1982)

An empirical relation for temperature–independent molar polarization is suggested. When this relation was used, the thermal expansivity was estimated correctly from refractive index data.
Antiplatelet activities of newly synthesized derivatives of piperlongumine (2008)

Piperlongumine, a pyridone alkaloid isolated from Piper longum L., exhibited a potential inhibitory effect on washed rabbit platelet aggregation induced by collagen, arachidonic acid (AA) and platelet activating factor (PAF), without any inhibitory effect on that induced by thrombin. Piperlongumine was used as a lead compound for the synthesis of new antiplatelet agents. Seven synthetic compounds were newly synthesized from 3,4,5-trimethoxycinnamic acid (TMCA). They were 1-piperidin-1-yl-3-(3,4,5-trimethoxy-phenyl)prop-2-en-1-one (1'), 1-morpholin-4-yl-3-(3,4,5-trimethoxyphenyl)prop-2-en-1-one (2'), 1-(3,5-dimethylpiperidin-1-yl)-3-(3,4,5-trimethoxyphenyl)prop-2-en-1-one (3'), 1-(2-methylpiperidin-1-yl)-3-(3,4,5-tri-methoxyphenyl)prop-2-en-1-one (4'), 1-(3-hydroxypiperidin-1-yl)-3-(3,4,5-trimethoxyphenyl)- prop-2-en-1-one (5'), 1-[3-(3,4,5-tri-methoxyphenyl) acryloyl]-piperidin-2-one (6') and ethyl 1-[3-(3,4,5-trimethoxyphenyl)-acryloyl]piperidine-4-carboxylate (7'). Among those seven synthetic derivatives, 1-(3,5-dimethylpiperidin-1-yl)-3-(3,4,5-trimethoxyphenyl)prop-2-en-1-one (3') had the most inhibitory effect on platelet aggregation induced by collagen, AA and PAF.
An experimental investigation on intra-fractional organ motion effects in lung IMRT treatments (2003)

Respiration-induced tumour motion can potentially compromise the use of intensity-modulated radiotherapy (IMRT) as a dose escalation tool for lung tumour treatment. We have experimentally investigated the intra-fractional organ motion effects in lung IMRT treatments delivered by multi-leaf collimator (MLC). An in-house made motor-driven platform, which moves sinusoidally with an amplitude of 1 cm and a period of 4 s, was used to mimic tumour motion. Tumour motion was simulated along cranial-caudal direction while MLC leaves moved across the patient from left to right, as in most clinical cases. The dose to a point near the centre of the tumour mass was measured according to geometric and dosimetric parameters from two five-field lung IMRT plans. For each field, measurement was done for two dose rates (300 and 500 MU min(-1)), three MLC delivery modes (sliding window, step-and-shoot with 10 and 20 intensity levels) and eight equally spaced starting phases of tumour motion. The dose to the measurement point delivered from all five fields was derived for both a single fraction and 30 fractions by randomly sampling from measured dose values of each field at different initial phases. It was found that the mean dose to a moving tumour differs slightly (<2-3%) from that to a static tumour. The variation in breathing phase at the start of dose delivery results in a maximum variation around the mean dose of greater than 30% for one field. The full width at half maximum for the probability distribution of the point dose is up to 8% for all five fields in a single fraction, but less than 1-2% after 30 fractions. In general, lower dose rate can reduce the motion-caused dose variation and therefore might be preferable for lung IMRT when no motion mitigation techniques are used. From the two IMRT cases we studied where tumour motion is perpendicular to MLC leaf motion, the dose variation was found to be insensitive to the MLC delivery mode.
ENROBES A FROID TRAITES A L'EMULSION DE BITUME REPANDUS EN COUCHES CONTINUES. ENROBES DENSES ET ENROBES OUVERTS (1985)

LES ENROBES A FROID TRAITES A L'EMULSION DE BITUME ET REPANDUS EN COUCHES CONTINUES ONT FAIT L'OBJET D'ETUDES EN LABORATOIRE, PUIS DE SUIVI SUR CHANTIER, ABORDANT EN PREMIER LIEU LES ENROBES DENSES PUIS LES ENROBES OUVERTS FABRIQUES EN CENTRALE OU EN PLACE AVEC MISE EN OEUVRE IMMEDIATE. L'ARTICLE EXPOSE LES RESULTATS DES ESSAIS D'ETUDE DE LABORATOIRE QUI ONT CONDUIT A DEFINIR LES EXIGENCES INDISPENSABLES A IMPOSER AUX DIVERS CONSTITUANTS, PUIS A CARACTERISER LE MIEUX POSSIBLE CES ENROBES. IL TRAITE DU SUIVI DE LEUR REALISATION ET DE LEUR COMPORTEMENT AU TRAVERS DE NOMBREUX CHANTIERS CORRESPONDANT A DES SITES, CLIMATS, TRACES, PROFILS, SUPPORTS, TRAFIC, ETC., TRES DIFFERENTS. LES TESTS D'EVALUATION DE LA QUALITE DE CES ENROBES SONT LA TENUE AU TRAFIC, LA RUGOSITE, LES PROFILS EN TRAVERS, L'ASPECT DE SURFACE, L'UNI, L'IMPERMEABILITE OU LA DRAINABILITE. AVEC LES EMULSIONS DONT ON DISPOSE ACTUELLEMENT, IL EST TOUT A FAIT POSSIBLE DE FABRIQUER ET DE METTRE EN OEUVRE DES ENROBES A L'EMULSION EN COUCHE DE SURFACE DE CHAUSSEES QUI SUBISSENT AVEC SUCCES L'AGRESSION DU TRAFIC. (A).
Depth Acquisition from Density Modulated Binary Patterns (2013)

This paper proposes novel density modulated binary patterns for depth acquisition. Similar to Kinect, the illumination patterns do not need a projector for generation and can be emitted by infrared lasers and diffraction gratings. Our key idea is to use the density of light spots in the patterns to carry phase information. Two technical problems are addressed here. First, we propose an algorithm to design the patterns to carry more phase information without compromising the depth reconstruction from a single captured image as with Kinect. Second, since the carried phase is not strictly sinusoidal, the depth reconstructed from the phase contains a systematic error. We further propose a pixel-based phase matching algorithm to reduce the error. Experimental results show that the depth quality can be greatly improved using the phase carried by the density of light spots. Furthermore, our scheme can achieve 20 fps depth reconstruction with GPU assistance.
Wastewater Treatment: Understanding the Activated Sludge Process (2009)

The activated sludge process (Figure 1) uses a mass of microorganisms (usually bacteria) to aerobically treat wastewater. Organic contaminants in the wastewater provide the carbon and energy required to encourage microbial growth and reproduction; nitrogen and phosphorous are sometimes added to promote this growth. The wastewater is thoroughly mixed with air in an aeration tank, and the organic matter is converted into microbial cell tissue and carbon dioxide. The microbial mass together with the wastewater is referred to as a mixed liquor. After a specifi ed time in the aeration tank, the mixed liquor passes into a settling tank, or clarifi er, where the biomass, or sludge, settles by gravity from the treated wastewater. This continuous process produces an effl uent that may be treated further or discharged directly to a publicly owned treatment works (POTW). The activated sludge process was developed in the early 1900s for the treatment of domestic wastewaters, and it has since been adapted for removing biodegradable organics from industrial wastewaters. Today, it is widely employed in the treatment of both municipal and industrial wastewaters.