gebhart/patrepeval huggingface dataset:
Measurement of Odorant Levels in Natural Gas (1976)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMeasurement of Odorant Levels in Natural GasArthur R. Knight and Arun VermaCite this: Ind. Eng. Chem. Prod. Res. Dev. 1976, 15, 1, 59–63Publication Date (Print):March 1, 1976Publication History Published online1 May 2002Published inissue 1 March 1976https://pubs.acs.org/doi/10.1021/i360057a011https://doi.org/10.1021/i360057a011research-articleACS PublicationsRequest reuse permissionsArticle Views86Altmetric-Citations27LEARN 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
Synthesis of angiotensin II antagonists with variations in position 5 (1987)

Six angiotensin II antagonists containing cyclohexylglycine (Chg) or cyclopentylglycine (Cpg) in position 5 were synthesized by stepwise elongation in solution, using the pentafluorophenyl ester method. The influence of substitution on the inhibitory properties of the analogues was studied in four different bioassays. [Sar1,Chg5,Lac8]AII proved to be the most potent antagonist with low intrinsic activity in both the in vitro and in vivo tests.
Serial Measurements of Higher-Order Aberrations after Blinking in Patients with Dry Eye (2008)

Increased HOAs in dry eye at least partially result from SPK above the optical zone. The low tear volume in dry eye may not cause sequential increases in HOAs after blinking. Sequential measurement of HOAs may be useful for evaluating the sequential changes in optical quality in patients with dry eye.
Development of Cr(VI)-free Treated Steel Sheet for Electrical Appliances and Business Machines (2003)

In the field of electrical appliances and business machines, a material used for the chassis needs a good fingerprint resistance and an electric conductivity in addition to good white rust resistance. Highly corrosion resistant chromate treated steel sheets, which contains Cr(VI), have been successfully used for a long period of time. Recently, the use of Cr(VI) has been recognized as one of harmful chemicals for human body. In reply to the social requirement of eliminating Cr(VI), Cr(VI)-free treated electrogalvanized steel sheets have been introduced by several Japanese steel makers. For the substitution of Cr(VI) treated steel sheets, a chemical resistance of Cr(VI)-free steel sheets is required as a new function in addition to the corrosion resistance and electric conductivity. New highly chemical resistant Cr(VI)-free coated steel sheet has been developed by hybridization of organic resins and inorganic reagents. The performance of the new products has been found to be excellent in comparison with the conventional Cr(VI) treated steel sheets.
On global solution to a class of smart building-grid energy management models (2012)

This paper presents a convex relaxation of a class of smart building-grid energy management models using a semi-definite programming approach. A smart building-grid energy system is roughly defined as an interconnection of buildings and electric power grid energy resources within a clearly defined boundary, here called a smart site. A smart site is a strategic or self-interested entity that seeks to maximize some utility function subject to all applicable technical and budget constraints. The utility function is here a measure of energy efficiency. A smart site may purchase energy from or sell energy to its external environment. On one hand, traditional building energy management systems have focused on meeting the energy requirements of one or more buildings assuming that the buildings are connected to a strong or infinite-capacity utility grid. On the other hand, electric grid management systems have traditionally modeled relatively large sites as single grid nodes with simple lump load models. The contribution of the present paper is two-fold: to provide a general model that integrates and extends building and energy management models, and (b) to develop a convex relaxation of the ensuing model a solution of which yields a global lower bound. The proposed approach also provides a means to test whether any solution, for example, obtained using a heuristic method, is global, and the corresponding optimality gap.
Multi-slice myelin water imaging for practical clinical applications at 3.0 T (2012)

Myelin water imaging is a promising, noninvasive technique for evaluating white matter diseases such as multiple sclerosis and other leukoencephalopathies (LE), and monitoring myelination in early childhood. Unfortunately, poor image quality and a long acquisition time are major obstacles to practical clinical applications. In this study, a novel postprocessing method with an efficient multi-slice acquisition scheme, called T2 spectrum analysis using a weighted regularized non-negative least squares algorithm and nonlocal mean filter (T2SPARC), is presented to overcome these obstacles and achieve a shorter acquisition time, higher image quality, and large volume coverage. In vivo results from healthy volunteers and a patient with LE showed that the T2SPARC method can generate robust and high-quality myelin water fraction maps of 10 slices within 11 min. This method also yields some useful byproducts such as intra- and extracellular water fraction and long T2 tissue water fraction maps, which can quantify lesions in different brain diseases.
Observation of Exceptional-Points in Plasmonics (2019)

The following topics are dealt with: optical metamaterials; infrared detectors; plasmonics; light emitting diodes; photodetectors; III-V semiconductors; nonlinear optics; nanophotonics; high-speed optical techniques; integrated optoelectronics.
Computer-Aided Assessment of Head Computed Tomography (CT) Studies in Patients with Suspected Traumatic Brain Injury (2008)

In this study, we sought to determine the accuracy of a computer algorithm that automatically assesses head computed tomography (CT) studies in patients with suspected traumatic brain injury (TBI) for features of intracranial hemorrhage and mass effect, employing a neuroradiologist's interpretation as the gold standard. To this end, we designed a suite of computer algorithms that evaluates in a fully automated fashion the presence of intracranial blood and/or mass effect based on the following CT findings: (1) presence or absence of a subdural or epidural hematoma, (2) presence or absence of subarachnoid hemorrhage, (3) presence or absence of an intraparenchymal hematoma, (4) presence or absence of clinically significant midline shift (>or=5 mm), and (5) normal, partly effaced, or completely effaced basal cisterns. The algorithm displays abnormal findings as color overlays on the original head CT images, and calculates the volume of each type of blood collection, the midline shift, and the volume of the basal cisterns, based on the above-described features. Thresholds and parameters yielding optimal accuracy of the computer algorithm were determined using a development sample of 33 selected, nonconsecutive patients. The software was then applied to a validation sample of 250 consecutive patients evaluated for suspicion of acute TBI at our institution in 2006-2007. Software detection of the presence of at least one noncontrast CT (NCT) feature of acute TBI demonstrated high sensitivity of 98% and high negative predictive value (NPV) of 99%. There was actually only one false negative case, where a very subtle subdural hematoma, extending exclusively along the falx, was diagnosed by the neuroradiologist, while the case was considered as normal by the computer algorithm. The software was excellent at detecting the presence of mass effect and intracranial hemorrhage, but showed some disagreements with the neuroradiologist in quantifying the degree of mass effect and characterizing the type of intracranial hemorrhage. In summary, we have developed a fully automated computer algorithm that demonstrated excellent sensitivity for acute intracranial hemorrhage and clinically significant midline shift, while maintaining intermediate specificity. Further studies are required to evaluate the potential favorable impact of this software on facilitating workflow and improving diagnostic accuracy when used as a screening aid by physicians with different levels of experience.
Worth-based multi-category quality-of-service negotiation in distributed object infrastructures (2002)

Quality-of-service (QoS) encompasses a wide range of non-functional characteristics, including reliability, security, and performance and is becoming increasingly important in business-critical distributed systems. Such systems are increasingly deployed in open networks, such as the Internet, where resource allocation and load varies highly. To meet QoS requirements in such an environment, systems need to be able to dynamically (re)configure and adapt to changing QoS conditions. This paper describes a model for a QoS negotiation mechanism. The model allows clients and servers in distributed object systems to negotiate for QoS agreements involving multiple QoS categories, such as performance, reliability, security, etc. The model includes both a protocol that enables agents to negotiate and a technique for calculating the worth of alternatives. The protocol handles negotiations involving multiple offers and counter offers. It evaluates an offer based on the absolute requirements for QoS levels and their relative worth to the negotiating systems. The protocol and the worth calculations are part of a QoS negotiation model that involves simultaneous negotiation over multiple QoS categories. We describe how negotiating applications communicate and evaluate offers. In addition, we describe the functions the negotiation mechanism requires from its environment. The protocol has been formally specified and simulated. We are currently investigating implementation approaches and prototypes for the full as well as simplified versions of the described model.
Extension of Nonrandom Two-Liquid Segment Activity Coefficient Model for Electrolytes (2005)

The nonrandom two-liquid segment activity coefficient model of Chen and Song (Ind. Eng. Chem. Res. 2004, 43, 8354) has shown to be a simple and practical tool for chemists and engineers to correlate and estimate solubilities of organic nonelectrolytes in support of chemical and pharmaceutical process design. In this paper, the model is extended for the computation of ionic activity coefficients and solubilities of electrolytes, organic and inorganic, in common solvents and solvent mixtures. In addition to the three types of molecular parameters defined for organic nonelectrolytes, i.e., hydrophobicity X, polarity Y, and hydrophilicity Z, an electrolyte parameter, E, is introduced to characterize both local and long-range ion−ion and ion−molecule interactions attributed to ionized segments of electrolytes. Successful representations of mean ionic activity coefficients and solubilities of electrolytes, inorganic and organic, in aqueous and nonaqueous solvents are presented.
Draft Genome Sequence of a Nonhemolytic Fish-Pathogenic Streptococcus agalactiae Strain (2012)

Streptococcus agalactiae is a significant Gram-positive bacterial pathogen of terrestrial and aquatic animals. A subpopulation of nonhemolytic strains which appear to be pathogenic only for poikilotherms exists. We report here the first draft genome sequence of a nonhemolytic S. agalactiae isolate recovered from a diseased fish.
SaveMe (1999)

Today, organizations deal with an ever-increasing number of documents that have to be archived because they are either related to their core business (e.g., product designs) or needed to meet corporate or legal retention requirements (e.g., voucher). In this paper, we present the architecture and prototype implementation of SaveMe, a document archival system that is based on network-centric groupware such as Internet standards-based messaging systems. In SaveMe, the actions of archiving, retrieving, and classifying documents are similar to the actions of sending, retrieving, and classifying email into folders. SaveMe leverages existing messaging infrastructures - the one common denominator sitting on every computer is email - and, thus, it does not require individual users and IT personnel to learn a new technology. The resulting environment is not intrusive, easier to administer, and a lot easier to deploy.
Design of a multichannel ultra-high-resolution superconducting gamma-ray spectrometer (2004)

Superconducting Gamma-ray microcalorimeters operated at temperatures around ~0.1 K offer an order of magnitude improvement in energy resolution over conventional high-purity Germanium spectrometers. The calorimeters consist of a ~1 mm<sup>3</sup> superconducting or insulating absorber and a sensitive thermistor, which are weakly coupled to a cold bath. Gamma-ray capture increases the absorber temperature in proportion to the Gamma-ray energy, this is measured by the thermistor, and both subsequently cool back down to the base temperature through the weak link. We are developing ultra-high-resolution Gamma-ray spectrometers based on Sn absorbers and superconducting Mo/Cu multilayer thermistors for nuclear non-proliferation applications. They have achieved an energy resolution between 60 and 90 eV for Gamma-rays up to 100 keV. We also build two-stage adiabatic demagnetization refrigerators for user-friendly detector operation at 0.1 K. We present recent results on the performance of single pixel Gamma-ray spectrometers, and discuss the design of a large detector array for increased sensitivity.
High-Performance FV Somewhat Homomorphic Encryption on GPUs: An Implementation using CUDA (2018)

Homomorphic encryption (HE) offers great capabilities that can solve a wide range of privacy-preserving computing problems. This tool allows anyone to process encrypted data producing encrypted results that only the decryption key’s owner can decrypt. Although HE has been realized in several public implementations, its performance is quite demanding. The reason for this is attributed to the huge amount of computation required by secure HE schemes. In this work, we present a CUDAbased implementation of the Fan and Vercauteren (FV) Somewhat HomomorphicEncryption (SHE) scheme. We demonstrate several algebraic tools such as the Chinese Remainder Theorem (CRT), Residual Number System (RNS) and Discrete Galois Transform (DGT) to accelerate and facilitate FV computation on GPUs. We also show how the entire FV computation can be done on GPU without multi-precision arithmetic. We compare our GPU implementation with two mature state-of-the-art implementations: 1) Microsoft SEAL v2.3.0-4 and 2) NFLlib-FV. Our implementation outperforms them and achieves on average 5.37x, 7.37x, 22.22x, 5.11x and 13.18x (resp. 2.03x, 2.94x, 27.86x, 8.53x and 18.69x) for key generation, encryption, decryption, homomorphic addition and homomorphic multiplication against SEAL-FVRNS (resp. NFLlib-FV).
Analysis of <i>Syndecan-2</i> Methylation in Bowel Lavage Fluid for the Detection of Colorectal Neoplasm (2018)

Our results demonstrated that <i>SDC2</i> methylation was a frequent event in precancerous lesions and showed high potential in BLF for detecting patients with colorectal neoplasm.
Optimal and suboptimal linear receivers for time-hopping impulse radio systems (2004)

In this paper, we consider optimal and suboptimal linear receivers for a given user in a frequency-selective multiuser environment. The optimal linear receiver combining all the samples from the frames and the multipath components, according to the MMSE criterion, is designed. Due to the complexity of this receiver, two suboptimal receivers are considered: (i) an optimal frame combining receiver, which optimally combines the samples from the frames, while combining different multipath components suboptimally; (ii) an optimal multipath combining receiver, which combines the samples from different multipath components optimally, while combining the samples from the frames suboptimally. In this paper, these optimal and suboptimal linear receivers are designed and their performance is evaluated via simulations.
Fast Nonlinear Image Reconstruction for Scanning Impedance Imaging (2008)

Scanning (electrical) impedance imaging (SII) is a novel high-resolution imaging modality that has the potential of imaging the electrical properties of thin biological tissues. In this paper, we apply the reciprocity principle to the modeling of the SII system and develop a fast nonlinear inverse method for image reconstruction. The method is fast because it uses convolution to eliminate the requirement of a numerical solver for the 3-D electrostatic field in the SII system. Numerical results show that our approach can accurately reveal the exact conductivity distribution from the measured current map for different 2-D simulation phantoms. Experiments were also performed using our SII system for a piece of butterfly wing and breast cancer cells. Two-dimensional current images were measured and corresponding quantitative conductivity images were restored using our approach. The reconstructed images are quantitative and reveal details not present in the measured images.
Multiwatt long wavelength quantum cascade lasers based on high strain composition with 70% injection efficiency (2012)

A strain-balanced, AlInAs/InGaAs/InP quantum cascade laser structure, designed for light emission near 9 µm, was grown by molecular beam epitaxy. Laser devices were processed in buried heterostructure geometry. Maximum pulsed and continuous wave room temperature optical power of 4.5 and 2 W and wallplug efficiency of 16% and 10%, respectively, were demonstrated for a 3mm by 10 µm laser mounted epi-side down on an AlN/SiC composite submount. Pulsed laser characteristics were shown to be self-consistently described by a simple model based on rate equations using measured 70% injection efficiency for the upper laser level.
New Methodology to Quantify Productivity of Vertical Wells in Naturally Fractured Solution Gas Drive Reservoirs with Dual Porosity and Dual Permeability (2016)

Abstract Forecasting the performance of individual wells is of great importance to oil companies for continuous field production optimization and cost per barrel reduction. Well Performance is measured by evaluating the Inflow Performance & Outflow Performance Relationships (IPR & OPR). For that the need to use the correct IPR for subjected reservoir is very essential. Since many decades, Vogel IPR equation has been used comprehensively for evaluating the productivity of vertical wells in saturated gas drive reservoirs. Vogel's model successfully evaluates IPR for single porosity solution gas drive in homogenous reservoirs. However, the applicability of Vogel's IPR for naturally fractured dual porosity-dual permeability reservoirs is questionable; hence this challenge is addressed by the industry only numerically. Due to composite fluid flow behavior between fracture and matrix system in a dual porosity-dual permeability reservoir, there is a pressing need for a new, practical and simple IPR model that takes into account the consideration of fracture parameters. This study investigates the effects of reservoir complex fluid flow behavior on IPR curves for vertical wells drilled in naturally fractured oil saturated reservoirs resulting in the development of an IPR curve for such conditions. A base case simulation model is developed with typical reservoir, fluid and rock properties using black oil model. Using a set of points relating oil production rates to flowing bottom-hole pressures, the dimensionless IPR curves are generated. Fluid and reservoir properties were varied between two porous and permeable media such as Inter-porosity flow co-efficient, storativity ratio, oil gravity, reservoir thickness and bubble point pressure. Inter-porosity flow coefficient and fracture storativity ratio were found to have a significant impact on dimensionless IPR curves. Finally, an attempt is made to converge the results into one simple model using non-linear regression technique in order to get a new empirical IPR correlation for vertical well producing from naturally fractured oil reservoirs. A small and acceptable average absolute error of less than 2% was found with the new proposed empirical IPR model, while comparing the existing published correlations on the same data gives more than 15% error. The developed IPR correlation is accurate enough and can serve as a handy tool for the production engineers to forecast the productivity of wells drilled in a naturally fractured dual porosity-dual permeability saturated oil reservoirs.
Mode transformer for miniaturized optical circuits (2005)

A novel mode transformer was fabricated that transforms a modal area by a factor of 100. Using the mode transformer improves the efficiency of mode transformation by an order of magnitude compared with that when no mode transformer is used. With this mode transformer, input-output coupling of miniaturized, on-chip integrated optical circuits to external optical fibers is achieved with low loss. The mode transformer's design, fabricated in silicon, is scalable to virtually any waveguide size, facilitating continuous miniaturization in silicon optoelectronics.
Graphite fiber reinforced glass matrix composites for aerospace applications (1979)

The graphite fiber reinforced glass matrix composite system is described. Although this composite is not yet a mature material, it possesses low density, attractive mechanical properties at elevated temperatures, and good environmental stability. Properties are reported for a borosilicate glass matrix unidirectionally reinforced with 60 volume percent HMS graphite fiber. The flexural strength and fatigue characteristics at room and elevated temperature, resistance to thermal cycling and continuous high temperature oxidation, and thermal expansion characteristics of the composite are reported. The properties of this new composite are compared to those of advanced resin and metal matrix composites showing that graphite fiber reinforced glass matrix composites are attractive for aerospace applications.