gebhart/patrepeval huggingface dataset:
Quantum Computation with Aharonov-Bohm Qubits (2002)

We analyze the posibility of employing the mesoscopic-nanoscopic ring of a normal metal in a doubly degenerate persistent current state with a third auxihilary level and in the presence of the Aharonov-Bohm flux equal to the half of the normal flux quantum $\hbar c/e$ as a qubit. The auxiliary level can be effectively used for all fundamental quantum logic gate (qu-gate) operations which includes the initialization, phase rotation, bit flip and the Hadamard transformation as well as the double-qubit controlled operations (conditional bit flip). We suggest a tentative realization of the mechanism as either the mesoscopic structure of three quantum dots coherently coupled by mesoscopic tunnelling in crossed magnetic and electric fields, or as a nanoscopic structure of triple anionic vacancy (similar to $F_3$ centers in alkali halides) with one trapped electron in one spin projection state.
Machine learning based job status prediction in scientific clusters (2016)

Large high-performance computing systems are built with increasing number of components with more CPU cores, more memory, and more storage space. At the same time, scientific applications have been growing in complexity. Together, they are leading to more frequent unsuccessful job statuses on HPC systems. From measured job statuses, 23.4% of CPU time was spent to the unsuccessful jobs. We set out to study whether these unsuccessful job statuses could be anticipated from known job characteristics. To explore this possibility, we have developed a job status prediction method for the execution of jobs on scientific clusters. The Random Forests algorithm was applied to extract and characterize the patterns of unsuccessful job statuses. Experimental results show that our method can predict the unsuccessful job statuses from the monitored ongoing job executions in 99.8% the cases with 83.6% recall and 94.8% precision. This prediction accuracy can be sufficiently high that it can be used to mitigation procedures of predicted failures.
High performance machining of selected titanium alloyes for aerospace applications (2010)

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ChemInform Abstract: Gold‐Catalyzed Double Migration—Benzannulation Cascade Toward Naphthalenes. (2008)

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Edge formation in Social Networks to Nurture Content Creators (2020)

Social networks act as major content marketplaces where creators and consumers come together to share and consume various kinds of content. Content ranking applications (e.g., newsfeed, moments, notifications) and edge recommendation products (e.g., connect to members, follow celebrities or groups or hashtags) on such platforms aim at improving the consumer experience. In this work, we focus on the creator experience and specifically on improving edge recommendations to better serve creators in such ecosystems.
Validation of l‐Tellurienylalanine as a Phenylalanine Isostere (2019)

Mass cytometry (MC) and imaging mass cytometry (IMC<sup>TM</sup> ) have emerged as important tools for the study of biological heterogeneity. We recently demonstrated the use of l-2-tellurienylalanine (TePhe), a mimic of phenylalanine (Phe), as an MC- and IMC-compatible protein synthesis reporter. In this work, the biochemical similarity of TePhe and its cognate analogue, Phe, are examined in the context of the RNase S complex. Isothermal titration calorimetry studies show that incorporation of TePhe preserves the interaction of S-peptide with S-protein, and the dissociation constants for the interaction of the Phe and TePhe peptides are within a factor of two. The resulting RNase S complex is catalytically active without significant alterations in the enzyme's kinetic parameters. Furthermore, circular dichroism spectroscopy does not reveal any changes to the secondary structure of TePhe-substituted RNase S. These findings provide strong evidence that TePhe functions as a Phe isostere in the context of a folded protein. It is anticipated that incorporation of TePhe into peptides or peptidomimetic scaffolds will enable facile generation of MC and IMC<sup>TM</sup> probes.
Non-Axisymmetric Structural Analysis of High Speed Rotor Orthotropic Retention Sleeve (2019)

This paper presents an analytical model for the structural analysis of orthotropic rotor retention sleeves of High-Speed Surface mounted Permanent Magnet Synchronous Machines (SPMSMs). The solutions herein derived generalize existing analytical models for non-axisymmetric geometries, considering orthotropic materials (e.g. Fiber Reinforced Polymers). These rotor geometries arise when pole gaps are present, i.e. magnetically inert regions between rotor poles. This design feature allows magnet material savings, reduction in eddy current losses and overall mass minimization during the machine optimization. The results were validated using Finite Element Analysis (FEA). The analytical model described is approximately 400 times faster to compute than FEA. This is particularly advantageous for machine design optimization using evolutionary algorithms, which require a large number of design evaluations.
CASIMIR: a high resolution far-IR/submm spectrometer for airborne astronomy (2010)

CASIMIR, the Caltech Airborne Submillimeter Interstellar Medium Investigations Receiver, is a far-infrared and submillimeter heterodyne spectrometer, being developed for the Stratospheric Observatory For Infrared Astronomy, SOFIA. CASIMIR will use newly developed superconducting-insulating-superconducting (SIS) mixers. Combined with the 2.5 m mirror of SOFIA, these detectors will allow observations with high sensitivity to be made in the frequency range from 500 GHz up to 1.4 THz. Initially, at least 5 frequency bands in this range are planned, each with a 4-8 GHz IF passband. Up to 4 frequency bands will be available on each flight and bands may be swapped readily between flights. The local oscillators for all bands are synthesized and tuner-less, using solid state multipliers. CASIMIR also uses a novel, commercial, field-programmable gate array (FPGA) based, fast Fourier transform spectrometer, with extremely high resolution, 22000 (268 kHz at 6 GHz), yielding a system resolution &gt; 10<sup>6</sup>. CASIMIR is extremely well suited to observe the warm, &asymp; 100K, interstellar medium, particularly hydrides and water lines, in both galactic and extragalactic sources. We present an overview of the instrument, its capabilities and systems. We also describe recent progress in development of the local oscillators and present our first astronomical observations obtained with the new type of spectrometer.
THE ASSOCIATION OF DRUSE CRYSTALS WITH THE DEVELOPING STOMIUM OF CAPSICUM ANNUUM (SOLANACEAE) ANTHERS (1980)

Each of the two stomiums in the anther of Capsicum annuum (sweet pepper) consists of a single layer of cells immediately below the epidermis between two adjacent locules. Each stomium extends the entire length of the anther and splits open at pollen maturity. Many calcium oxalate druse crystals form within the vacuoles of the stomium cells in association with membrane complexes and paracrystalline bodies. These latter structures are reported here for the first time and each is considered to be a nucleation site for druse crystal formation. Prior to the appearance of membrane complexes and crystals within the vacuoles, plasmalemmasomes are visible next to the stomium cell walls and contain vesicles and fibrous material. We propose that these bodies carry wall materials, including calcium ions and possibly oxalate ions, into the vacuoles. Their presence coincides with crystal formation. Two other types of crystals occur in the connective tissue between stomiums and the single vascular strand. These crystals, along with those in the two stomiums, form at precise times during anther development. Contrary to the more numerous suggestions that crystals protect against predators or are metabolic waste products, we believe their formation aids in degradation and weakening of the cell walls between the locules and, thus, contributes to the release mechanism for the pollen.
Supplementary Figure 7 A-B from Direct Targeting of the Mucin 1 Oncoprotein Blocks Survival and Tumorigenicity of Human Breast Carcinoma Cells (2023)

Supplementary Figure 7 A-B from Direct Targeting of the Mucin 1 Oncoprotein Blocks Survival and Tumorigenicity of Human Breast Carcinoma Cells
An Objective Metric for Stereoscopic 3D Video Quality Prediction Using Perceptual Thresholds (2015)

This study proposes an objective metric dedicated to stereoscopic 3D video quality assessment, which characterizes a detected problem based on its influence on viewers' perception and avoids a direct prediction of the mean opinion score. Once the problem (degradation or artifact) is detected, it can be automatically classified into one of the following color categories: (1) Green, for no problems perceived; (2) Orange, which indicates the problem is acceptable but induces visual annoyance; or (3) Red, for unacceptable problem level. The boundary between the Green and the Orange categories defines the visual annoyance threshold, while the boundary between the Orange and the Red categories defines the acceptability threshold. This metric can be adapted to service or production requirements by changing the percentage of acceptability.
Multi-depth valved microfluidics for biofilm segmentation (2015)

Bacterial biofilms present a societal challenge, as they occur in the majority of infections but are highly resistant to both immune mechanisms and traditional antibiotics. In the pursuit of better understanding biofilm biology for developing new treatments, there is a need for streamlined, controlled platforms for biofilm growth and evaluation. We leverage advantages of microfluidics to develop a system in which biofilms are formed and sectioned, allowing parallel assays on multiple sections of one biofilm. A microfluidic testbed with multiple depth profiles was developed to accommodate biofilm growth and sectioning by hydraulically actuated valves. In realization of the platform, a novel fabrication technique was developed for creating multi-depth microfluidic molds using sequentially patterned photoresist separated and passivated by conformal coatings using atomic layer deposition. Biofilm thickness variation within three separately tested devices was less than 13% of the average thickness in each device, while variation between devices was 23% of the average thickness. In a demonstration of parallel experiments performed on one biofilm within one device, integrated valves were used to trisect the uniform biofilms with one section maintained as a control, and two sections exposed to different concentrations of sodium dodecyl sulfate. The technology presented here for multi-depth microchannel fabrication can be used to create a host of microfluidic devices with diverse architectures. While this work focuses on one application of such a device in biofilm sectioning for parallel experimentation, the tailored architectures enabled by the fabrication technology can be used to create devices that provide new biological information.
The Reaction of Organometallic Compounds with the Weinreb Amide of 3,7-Dichloroquinoline-8-carboxylic Acid (1998)

Abstract The reaction of Grignard or organolithium reagents with the Weinreb amide of 3,7-dichloroquinoline-8-carboxylic acid afforded 2-substituted derivatives 5 via nucleophilic substitution reaction with hydride transfer as the major product instead of the normally expected ketone derivatives 4.
Mobile Mapping Using Smartphones (2014)

This thesis details the development of a mobile mapping system (MMS) using smartphones and investigates its ability to be a major source for Geographic Information System (GIS) and mapping applications. Nowadays, smartphones contain all the required components for any MMS (i.e., Global Positioning System (GPS) receiver, a digital camera, accelerometers, gyroscopes, and magnetometers). However, the accuracy of the sensors in smartphones is poor, which is the main drawback of using smartphones for mapping applications. In this thesis, two Android applications were developed to capture synchronized images or videos with various sensors measurements. Using a smartphone’s GPS receiver, its initial positions at the instants of exposure can be estimated; and a smartphone’s initial orientation parameters can be calculated using its accelerometers and magnetometers sensors. These initial values, which are called the Exterior Orientation Parameters (EOPs) and the initial Interior Orientation Parameters (IOPs) of the camera in use, are corrected using epipolar geometry constraints along with a set of automatically matched points between each two consecutive images. The corrected EOPs and IOPs are then used to estimate the 3D coordinates of the interest points using a developed bundle adjustment software application. The implementation of the prototype system is also shown, and all of the methods utilized to obtain the final mapping results are detailed. Using this prototype system, examples of the mapping results are shown where the absolute maximum mapping errors did not exceed 0.32 and 0.5 meter in the horizontal and vertical directions respectively using six captured images and two control points. Other obtained mapping results also are presented in this thesis to demonstrate the developed system’s ability to obtain mapping results efficiently, by pedestrians or from a moving vehicle, using both the captured images and recorded videos.
Simple Storage Rings (2006)

This chapter contains sections titled: Preview The Uniform Field Ring Horizontal Stability Vertical Stability Simultaneous Horizontal and Vertical Stability Dispersion Momentum Compaction Chromaticity Strong Focusing
MODELO MULTICRITÉRIO PARA AVALIAÇÃO DO POTENCIAL DE NEGÓCIOS TECNOLÓGICOS NA AGRICULTURA (2011)

A Embrapa Suinos e Aves possui tradicao em PDI Atratividade para a EBT; e Impactos social, ambiental e institucional. O modelo se mostrou pertinente, viavel e replicavel para outros negocios tecnologicos, pois qualifica a gestao das tecnologias com potencial de comercializacao e tambem contribui para a qualificacao da pesquisa. Termos para indexacao: analise multicriterio, inovacao tecnologica, negocios, transferencia de tecnologia. MULTICRITERIA MODEL FOR ASSESSMENT OF THE POTENTIAL OF TECHNOLOGY BUSINESS IN AGRICULTURE ABSTRACT Embrapa Swine and Poultry has a tradition of valuing RD&I (Research, Development and Innovation) and technology business, with historically relevant contributions to solve the bottlenecks in agribusiness of these two chains, and an emphasis on improving the management of the transfer of research results. This paper presents the construction of a multicriteria model for assessing the potential for negotiating the generated technologies with technology-based companies (TBC), with emphasis on features to highlight strengths and weaknesses, indicate the relevance of the transfer, direct the negotiation and reveal aspects that should be adjusted during the cooperation. The methodology used was that of a Multicriteria Decision Aid, by using the MACBETH method. Ten evaluation criteria were built and grouped into three areas of interest: State of the art technology, Attractiveness to TBC, and Social, environmental and institutional impacts. This model was shown to be relevant, viable and replicable to other technology businesses, since it qualifies the technology management in the case of technologies with a great commercial potential and also helps in research improvement. Index terms: business, multicriteria analysis, technological innovation, technology transfer.
Efficacy of Pilot-Scale Wastewater Treatment upon a Commercial Recirculating Aquaculture Facility Effluent (2011)

Efficacy of Pilot-Scale Wastewater Treatment upon a Commercial Recirculating Aquaculture Facility Effluent
An Enhanced Two Dimensional Histogram Method Utilizing Dense Regions (2008)

Histograms are popularly used for selectivity estimation in database systems. In conventional histogram methods, buckets return the approximated results based on the assumption that all objects in a bucket are uniformly distributed. However, the objects within the region of a query are not likely to be uniformly distributed. That is, there can be some skews (i.e., clusters) in the buckets, which may significantly degrade the accuracy of the histogram. The aim of this work is to enhance the accuracy of histograms. For this purpose, we propose a new two-dimensional histogram method considering clusters. The proposed method detects dense regions and exploits them for organizing buckets. Since the proposed method effectively reduces accuracy degradation caused by clusters, it can provide improved, robust accuracy against skewed data distributions. Through experiments, we show that the proposed method provides up to 74% improved performance compared with the conventional histogram.
Nudeotide sequence of the BsuRI restriction-modification system (1985)

The genes of the 5'-GGCC specific BsuRI restriction-modification system of Bacillus subtilis have been cloned and expressed in E. coli and their nucleotide sequence has been determined. The restriction and modification genes code for polypeptides with calculated molecular weights of 66,314 and 49,642, respectively. Both enzymes are coded by the same DNA strand. The restriction gene is upstream of the methylase gene and the coding regions are separated by 780 bp. Analysis of the RNA transcripts by S1-nuclease mapping indicates that the restriction and modification genes are transcribed from different promoters. Comparison of the amino acid sequences revealed no homology between the BsuRI restriction and modification enzymes. There are, however, regions of homology between the BsuRI methylase and two other GGCC specific modification enzymes, the BspRI and SPR methylases.
Samuel Harry Jenkins (1982)

Research Article| January 01 1982 Samuel Harry Jenkins Water Sci Technol (1982) 14 (1-2): 3–4. https://doi.org/10.2166/wst.1982.0044 Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Share Icon Share Twitter LinkedIn Tools Icon Tools Cite Icon Cite Permissions Search Site Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentAll JournalsThis Journal Search Advanced Search Citation Samuel Harry Jenkins. Water Sci Technol 1 January 1982; 14 (1-2): 3–4. doi: https://doi.org/10.2166/wst.1982.0044 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex This content is only available as a PDF. © IWA Publishing 1982 Article PDF first page preview Close Modal You do not currently have access to this content.
Displacements of Metallic Thermal Protection System Panels During Reentry (2006)

Bowing of metallic thermal protection systems for reentry of a previously proposed single-stage-to-orbit reusable launch vehicle was studied. The outer layer of current metallic thermal protection system concepts typically consists of a honeycomb panel made of a high temperature nickel alloy. During portions of reentry when the thermal protection system is exposed to rapidly varying heating rates, a significant temperature gradient develops across the honeycomb panel thickness, resulting in bowing of the honeycomb panel. The deformations of the honeycomb panel increase the roughness of the outer mold line of the vehicle, which could possibly result in premature boundary layer transition, resulting in significantly higher downstream heating rates. The aerothermal loads and parameters for three locations on the centerline of the windward side of this vehicle were calculated using an engineering code. The transient temperature distributions through a metallic thermal protection system were obtained using 1-D finite volume thermal analysis, and the resulting displacements of the thermal protection system were calculated. The maximum deflection of the thermal protection system throughout the reentry trajectory was 6.4 mm. The maximum ratio of deflection to boundary layer thickness was 0.032. Based on previously developed distributed roughness correlations, it was concluded that these defections will not result in tripping the hypersonic boundary layer.
Mathematical simulation of a low-pressure capacitive RF discharge in an external radial magnetic field using the KARAT code (2016)

A high-frequency capacitive discharge is simulated in the geometry of a plasma accelerator with closed electron drift. It has been shown that, in such a discharge, as in a dc discharge, an azimuthal electron drift takes place and a potential drop is formed at the discharge channel exit, which leads to the emergence of an accelerated ion beam from the channel.
Supersonic Nozzle Design (1946)

Abstract A two-dimensional flow field in which the velocity is everywhere supersonic can always be represented approximately by a number of small adjacent quadrilateral flow fields in each of which the velocity and pressure are constant. These quadrilaterals must be separated by lines representing waves in the flow; changes in velocity and pressure through any wave can be computed. By increasing the number of small areas into which the complete flow field is divided, the accuracy of this approximate solutions may be increased without limit. This constitutes the “method of characteristics” solution, which has been known for many years. This method may be applied to the graphical computation of flow in a supersonic nozzle, with the particular aim of producing uniform supersonic flow at the end of the nozzle. It is pointed out that such a computation is essentially simple and rapid, and its essential features are presented in a form which, it is hoped, may be easily applied to engineering problems.
Liquid chromatography tandem mass spectrometry for the simultaneous quantitative analysis of ketamine and medetomidine in ovine plasma (2011)

Ketamine and medetomidine are commonly combined to sedate or anaesthetize a wide range of animal species. Despite this, there are few methods for the simultaneous quantitative analysis of the two drugs. This study describes the use of solid-phase extraction sample preparation followed by liquid chromatography-tandem mass spectrometry for the quantitative analysis of both drugs in ovine plasma. Extraction recovery was 93% for ketamine and 95% for medetomidine. The lowest limit of detection for ketamine was 1 ng/mL and for medetomidine 2 ng/mL, with linearity greater than 0.99 for both. Intra-day and inter-day precisions for both drugs were less than 10 and 7%, respectively. Application of the method to samples obtained from pregnant ewes and their fetuses showed placental transfer of the drugs over time such that there was no significant difference in plasma concentration at delivery. In summary, a validated method has been developed for the simultaneous quantification of ketamine and medetomidine in ovine plasma samples which can be used to study the pharmacokinetics of these drugs.