gebhart/patrepeval huggingface dataset:
ST-GAN: Spatial Transformer Generative Adversarial Networks for Image Compositing (2018)

We address the problem of finding realistic geometric corrections to a foreground object such that it appears natural when composited into a background image. To achieve this, we propose a novel Generative Adversarial Network (GAN) architecture that utilizes Spatial Transformer Networks (STNs) as the generator, which we call Spatial Transformer GANs (ST-GANs). ST-GANs seek image realism by operating in the geometric warp parameter space. In particular, we exploit an iterative STN warping scheme and propose a sequential training strategy that achieves better results compared to naive training of a single generator. One of the key advantages of ST-GAN is its applicability to high-resolution images indirectly since the predicted warp parameters are transferable between reference frames. We demonstrate our approach in two applications: (1) visualizing how indoor furniture (e.g. from product images) might be perceived in a room, (2) hallucinating how accessories like glasses would look when matched with real portraits.
Helix-A peptide prevents gp120-mediated neuronal loss (2019)

Surface plasmon resonance analysis revealed that Helix-A but not its modifications binds to MTs. Also, only Helix-A MSN but not other peptides prevented the ability of gp120 to reduce neuronal processes as well as neuronal survival. Thus, the amino acid structure of Helix-A is key for its neuroprotective activity.
A mobile time-domain sounding system for shallow water (2013)

We discuss a new method of marine electromagnetic sounding in shallow water using a horizontal electric dipole as a source of current and a vertical electric dipole as a receiver. The measurements are performed in the time domain at short transmitter-receiver offsets. The locality, sensitivity, resolution and detection depth of the proposed method were studied using a number of simple three-dimensional model examples. A new approach to determining the electrical characteristics of a hydrocarbon reservoir based on seismic ‘skeleton’ fixing the boundaries of the geological formations was demonstrated on the Luva Discovery electrical model. The new method enables surveying in depths of water in the range of 25 to 100 m using a towed source and a vertical four-electrode gradient receiver.
Luminescent Properties and Optical Amplification of Erbium‐Doped Nano‐Engineered Scandium‐Phospho‐Yttria‐Alumina‐Silica Glass Based Optical Fiber (2018)

In this work, a new erbium (Er) doped nano‐engineered scandium‐phospho‐yttria‐alumina‐silica (SPYAS) glass‐based optical fiber is reported, fabricated through the MCVD process, and solution doping technique, followed by a suitable thermal annealing of pristine preform. The fabrication process comprises the incorporation of erbium doped phase‐separated scandium‐yttria rich crystalline nanoparticles into the core region through in situ process based on phase‐separation and crystal growth phenomena. The material characterization results, obtained from transmission electron microscopy, electron diffraction pattern, energy dispersive X‐ray, electron probe micro analysis, and X‐ray fluorescence, confirm the formation of Er 2 O 3 doped crystalline phase‐separated scandium‐yttria rich nanoparticles in the core region. The formation of scandium‐ultra rich nano‐crystalline environment, possessing low photon energy around the erbium ions, enhanced the fluorescence intensity. Such kind of nano‐engineered glass reduces the noise figure around 4.35 dB, and provides broadband optical flat gain with an average value of 38.675 dB, varied by less than ±0. 7 dB spanning over a broad wavelength region of 1530–1590 nm compared to the pristine and Sc free Er‐doped fibers. Such kind of nano‐engineered glass based Er doped fiber will be useful for making highly efficient optical amplifiers, suitable for present broadband optical communication systems.
Artificial Skin for 76–77 GHz Radar Mannequins (2014)

This paper discusses the design, fabrication, and characterization of a unique artificial skin specifically designed for mannequins used in 76-77 GHz vehicular collision-avoidance radar evaluations. The artificial skin has a multilayer sheet composed of conductive fabrics and a conducting backing. By carefully choosing the conductivity and thickness of the fabrics, this artificial skin demonstrated similar reflectivity as real, dry human skin. Also, the conducting backing effectively shields the components (motors, wires, support frames, etc.) inside the mannequin from radar operations. The performance of this artificial skin was validated by comparing the radar cross-section pattern data collected from real human subjects.
Gremlin: Systematic Resilience Testing of Microservices (2016)

Modern Internet applications are being disaggregated into a microservice-based architecture, with services being updated and deployed hundreds of times a day. The accelerated software life cycle and heterogeneity of language runtimes in a single application necessitates a new approach for testing the resiliency of these applications in production infrastructures. We present Gremlin, a framework for systematically testing the failure-handling capabilities of microservices. Gremlin is based on the observation that microservices are loosely coupled and thus rely on standard message-exchange patterns over the network. Gremlin allows the operator to easily design tests and executes them by manipulating inter-service messages at the network layer. We show how to use Gremlin to express common failure scenarios and how developers of an enterprise application were able to discover previously unknown bugs in their failure-handling code without modifying the application.
20 watt spatial power combiner in waveguide (2002)

In this paper, we present the continued effort in the development of broadband waveguide-based spatial combiners. A 20 W result at X-band is reported. The combiner was implemented by using eight commercial GaAs MMIC amplifiers in a rectangular waveguide environment. A new combiner design is proposed to alleviate, if not eliminate, various technical problems and further improve the power performance. Resulting simplification in analysis also enable us to better characterize the combining circuits. The preliminary result suggests promising outlook in performance improvement.
Production and characterization of monoclonal antibodies identifying breast tumor-associated antigens. (1989)

We have generated a mouse monoclonal antibody (H23) against the retrovirus-like particles (human mammary tumor virus) released in vitro by the human breast adenocarcinoma cell line T47D. This antibody reacts specifically with a glycoprotein with an apparent molecular mass of 68 kDa (gp68) that is detected in the growth medium of T47D cells as well as in pleural effusion fluids from breast adenocarcinoma patients. No detectable levels of this antigen could be observed in pleural effusions of patients with cancers other than of breast origin. The H23-related antigen was localized in the cytoplasm of breast tumor cells as well as on the cell surface of both T47D cells and metastatic cells from breast cancer patients. A survey of tissue from 812 patients was performed by using H23 in an indirect immunoperoxidase assay. The results showed that the antigen was detectable in 91% of all breast tumors tested. No cytoplasmic staining was observed in either normal tissues or nonbreast carcinomas. Only one of the benign breast tissues tested (out of a total of 56 samples of tissue) was positive for this antigen. Given the ability of this antibody to specifically detect breast tumor cells, H23 may be of importance in diagnosis and in clinical follow-up of patients for the detection of metastatic lesions by imaging and for therapy.
Induction Log Analysis of Thinly Laminated Sand/Shale Formation (1995)

Summary We examine induction log responses to a thinly laminated sand/shale sequence in a deviated borehole for arbitrary deviation (or dip) angle and sand/shale composition. We found that the induction log responses in a thinly laminated sand/shale sequence are the same as they would be if the tool is placed in a homogeneous but anisotropic formation with the horizontal and vertical conductivities given respectively by the parallel and the series conductivities of the sequence. Conversely, a thinly laminated sand/shale sequence can be identified as an anisotropic formation by induction logs. We discuss three methods to identify an anisotropic formation using induction-type logs alone.
Pure hydrogen production from octane, ethanol, methanol and methane reforming using a palladium membrane reactor (2002)

A palladium membrane reactor was used to reform octane, ethanol, methanol and methane into pure hydrogen. Conversions approaching 100% were achieved for each of the hydrocarbons. The effect of injection rate on hydrogen recovery was measured. It was observed that higher percentages of hydrogen were recovered from the hydrocarbons as the injection rate was decreased. The effect of hydrocarbon-to-water inlet ratio was also measured for octane and ethanol. It was observed that higher percentages of hydrogen were recovered from the hydrocarbons as the hydrocarbon-to-water inlet ratio was increased.
Synthesis of New Boron‐Rich Building Blocks for Boron Neutron Capture Therapy or Energy‐Filtering Transmission Electron Microscopy (2004)

The synthesis of a new ortho-carborane derivative, tetracarboranylketone 4, is reported here. Ketone 4 was prepared from a tetraalkynylated ketone by the addition of decaborane. The keto group was then easily modified to yield the glycosides 17alpha and 18beta, which contain glucose or galactose, respectively, and the nucleotide 13b. In addition to ketone 4, which is acyclic, cyclic ketone 8 was also synthesised. X-ray diffraction analysis of compound 4 indicated the presence of two toluene guest molecules per molecule of the host compound. Furthermore, compound 4 displays a rather low cytotoxicity. These novel products can be used as building blocks to create a new class of biomolecules containing high-density carborane clusters. Such molecules may constitute powerful tools for applications like Boron Neutron Capture Therapy or Energy-Filtering Transmission Electron Microscopy.
Synthesis and Antigenic Analysis of the BclA Glycoprotein Oligosaccharide from the <i>Bacillus anthracis</i> Exosporium (2006)

The glycoprotein BclA is an important constituent of the exosporium of Bacillus anthracis spores. This glycoprotein is substituted with an oligosaccharide composed of a beta-L-rhamnoside substituted with the previously unknown terminal saccharide, 2-O-methyl-4-(3-hydroxy-3-methylbutanamido)-4,6-dideoxy-D-glucopyranose, also referred to as anthrose. Anthrose has not been found in spores of B. cereus and B. thuringiensis, making it a potential species-specific marker for B. anthracis. In order to study the antigenicity of anthrose, efficient syntheses of an anthrose-containing trisaccharide and a series of structurally related analogues were developed. The analogues lacked either the methyl ether at C-2 or contained modified C-4 amino functionalities of anthrose. The synthetic compounds were equipped with an aminopropyl spacer to facilitate conjugation to the carrier proteins mariculture Keyhole Limpet Hemocyanin (mcKLH) and bovine serum albumin (BSA). Serum antibodies of rabbits immunized with live or irradiated spores of B. anthracis Sterne 34F(2) were able to recognize the synthetic trisaccharide-mcKLH conjugate. The specificity of the interaction was confirmed by competitive inhibition with the free- and BSA-conjugated trisaccharides. Inhibition using the trisaccharide analogues demonstrated that the isovaleric acid moiety of anthrose is an important structural motif for antibody recognition. These data demonstrate that 1) anthrose is a specific antigenic determinant of the B. anthracis Sterne spore; 2) this antigen is presented to the immune system of rabbits receiving the anthrax live-spore vaccine; 3) synthetic analogues of the oligosaccharide retain the antigenic structure; and 4) the antigenic region is localized to specific terminal groups of the oligosaccharide. Collectively these data provide an important proof-of-concept step in the synthesis and development of spore-specific reagents for detection and targeting of non-protein structures in B. anthracis.
ChemInform Abstract: Proline Catalyzed Sequential α‐Aminooxylation or ‐Amination/Reductive Cyclization of o‐Nitrohydrocinnamaldehydes: A High Yield Synthesis of Chiral 3‐Substituted Tetrahydroquinolines. (2013)

Abstract The title reaction is efficiently used in the synthesis of compound (VIII), a key intermediate for the preparation of (‐)‐sumanirole (IX) and the known bioactive molecule (S)‐903 (XI).
<title>Biometric tracking with coded pyroelectric sensor clusters</title> (2005)

Human bodies are very good heat sources with peak emission wavelength of about 9?m. We use pyroelectric detectors that are differential in nature to detect human motion by their heat emissions. Coded Fresnel lens arrays create boundaries in space which helps to localize the human motion as well as classification. We design and implement a low-cost biometric tracking system using off-the-shelf components. We demonstrate tracking and classification using sensor clusters of dualelement pyroelectric detectors with coded Fresnel lens arrays.
Architecture and techniques for diagnosing faults in IEEE 802.11 infrastructure networks (2004)

The wide-scale deployment of IEEE 802.11 wireless networks has generated significant challenges for Information Technology (IT) departments in corporations. Users frequently complain about connectivity and performance problems, and network administrators are expected to diagnose these problems while managing corporate security and coverage. Their task is particularly difficult due to the unreliable nature of the wireless medium and a lack of intelligent diagnostic tools for determining the cause of these problems.This paper presents an architecture for detecting and diagnosing faults in IEEE 802.11 infrastructure wireless networks. To the best of our knowledge, ours is the first paper to address fault diagnostic issues for these networks. As part of our architecture, we propose and evaluate a novel technique called Client Conduit, which enables boot-strapping and fault diagnosis of disconnected clients. We describe techniques for analyzing performance problems faced in a wireless LAN deployment. We also present an approach for detecting unauthorized access points. We have built a prototype of our fault diagnostic architecture on the Windows operating system using off-the-shelf IEEE 802.11 cards. The initial results show that our mechanisms are effective; furthermore, they impose low overheads when clients are not experiencing problems.
Gas/vapour separation using ultra-microporous metal–organic frameworks: insights into the structure/separation relationship (2017)

In this tutorial review we discuss the latest developments in ultra-microporous MOF adsorbents and their use as separating agents<italic>via</italic>thermodynamics and/or kinetics and molecular sieving.
Solar generation of the fullerenes (1993)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSolar generation of the fullerenesL. P. F. Chibante, Andreas Thess, J. M. Alford, M. D. Diener, and R. E. SmalleyCite this: J. Phys. Chem. 1993, 97, 34, 8696–8700Publication Date (Print):August 1, 1993Publication History Published online1 May 2002Published inissue 1 August 1993https://pubs.acs.org/doi/10.1021/j100136a007https://doi.org/10.1021/j100136a007research-articleACS PublicationsRequest reuse permissionsArticle Views344Altmetric-Citations96LEARN 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 options Get e-Alerts
Evaluation of helical cone-beam CT reconstruction algorithms (2004)

In this work, three different reconstruction algorithms for short scan helical cone-beam CT are compared: Two approximate algorithms, PI-SLANT and WVEDGE-PI, with the recently published exact algorithm by Katsevich. It is shown that WEDGE-PI performs as well as the exact method for a 64 row scanner and almost as well for a 128 row scanner. PI-SLANT produces significantly more artifacts, in particular for the 128 row scanner.
Poster (2019)

The load on wireless cellular networks is not uniformly distributed through the day, and is significantly higher during peak-times. In this context, we present a time-shifted prefetching solution that prefetches content during off-peak periods of network connectivity. We specifically focus on YouTube as it represents a significant portion of overall cellular data-usage. We present a prediction algorithm called MANTIS using a K-nearest neighbor classifier approach and show that the algorithm can reduce the traffic during peak-times by 34% for a typical user.
Fast text/graphics resolution improvement using wavelet based denoising and chain-code table lookup (2003)

We propose a fast text/graphics resolution improvement algorithm with boundary parameterization and wavelet based denoising. Given input images containing labeled text/graphics objects, local boundary segments on each object are traced, parameterized, smoothed, and subsequently rerendered at the desired resolution. All of the critical operations are delegated to lookup tables, resulting in an algorithm that is fast, computationally inexpensive, with low memory requirements. A very flexible framework is proposed which can be utilized in a variety of text/graphics applications requiring resolution improvement.
Multicore photonic crystal fibres (1997)

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 J. C. Knight, T. A. Birks, B. J. Mangan, P. S. J. Russell, G. G. Vienne, and J. -. De Sandro, "Multicore photonic crystal fibres," in 12th International Conference on Optical Fiber Sensors, Vol. 16 of 1997 OSA Technical Digest Series (Optica Publishing Group, 1997), paper PDP5. Export Citation BibTex Endnote (RIS) HTML Plain Text Citation alert Save article
Specific Inhibition of a Human Papillomavirus E2 <i>Trans</i> -Activator by Intracellular Delivery of Its Repressor (1994)

Papillomaviruses are the causative agents of benign and malignant epithelial tumors of the skin and mucosa. They encode a DNA-binding protein, E2, that regulates viral transcription and replication, making it an important therapeutic target. By deleting the amino-terminal trans-activation domain of human papillomavirus type 16 (HPV-16) E2 while retaining its carboxy-terminal DNA binding and dimerization domain, an E2 repressor (E2R) that efficiently inhibits transcriptional activation by full-length HPV E2 was generated. To deliver this repressor protein into animal cells, we have utilized the human immunodeficiency virus type 1 (HIV-1) Tat protein which itself is taken up efficiently into intact cells. Chimeras of E2R and the cellular uptake domain of Tat specifically inhibited E2-dependent reporter gene expression in COS-7 cells. Treatment of cervical intraepithelial neoplasia cells having episomally replicating HPV-31 DNA with this Tat-E2R protein led to a dose-dependent loss of HPV DNA copies and inhibition of cell growth. Tat-mediated delivery can be a valuable tool for assessing protein function and may allow the development of novel therapeutic proteins having intracellular targets.
Joint kinematic and feature tracking using probabilistic argumentation (2003)

This paper describes a multi-target tracking approach based on merging traditional Kalman recursive filtering with evidential reasoning methodology. The approach fuses all the available information about targets to be tracked – both kinematic (position, velocity, etc.) and identity (attributes, features, type, class, etc.) information and uses the fused measure for data association and tracking. The proposed tracking system departs from other feature-aided tracking systems in that (1) it allows more flexible domain knowledge representation such as in the form of uncertain rules, (2) it is able to accommodate imprecise as well as partial knowledge (e.g., partial probability distribution), and (3) it uses a probabilistic argumentation system as the evidential reasoning methodology for attribute/feature fusion. The method described here is general purpose, will work on multiple-target tracking problems with both single and multi-sensor systems and is not sensor type dependent. We demonstrate the feasibility and utility of the proposed method through a multi-target tracking simulation example.
Tandem Solar Cells from Accessible Low Band-Gap Polymers Using an Efficient Interconnecting Layer (2015)

Tandem solar cell architectures are designed to improve device photoresponse by enabling the capture of wider range of solar spectrum as compared to single-junction device. However, the practical realization of this concept in bulk-heterojunction polymer systems requires the judicious design of a transparent interconnecting layer compatible with both polymers. Moreover, the polymers selected should be readily synthesized at large scale (>1 kg) and high performance. In this work, we demonstrate a novel tandem polymer solar cell that combines low band gap poly isoindigo [P(T3-iI)-2], which is easily synthesized in kilogram quantities, with a novel Cr/MoO3 interconnecting layer. Cr/MoO3 is shown to be greater than 80% transparent above 375 nm and an efficient interconnecting layer for P(T3-iI)-2 and PCDTBT, leading to 6% power conversion efficiencies under AM 1.5G illumination. These results serve to extend the range of interconnecting layer materials for tandem cell fabrication by establishing, for the first time, that a thin, evaporated layer of Cr/MoO3 can work as an effective interconnecting layer in a tandem polymer solar cells made with scalable photoactive materials.
Improved Delay Fault Coverage Using Subsets of Flip-flops to Launch Transitions (2005)

We describe a novel method to partition flip-flops in scan chains into disjoint groups of flip-flops that are to be driven by independent scan enable signals to achieve higher delay fault coverage. The proposed method to partition flip-flops is motivated by our recent work which demonstrated that driving subsets of flip-flops by independent scan enable signals to launch signal transitions will lead to higher delay fault coverage by broadside tests. As in broadside test none of the scan enable signals need to switch at-speed. Experimental results for delay fault coverage improvement on larger ISCAS-89 benchmark and industrial circuits are presented