gebhart/patrepeval huggingface dataset:
Accurate static estimators for program optimization (1994)

Determining the relative execution frequency of program regions is essential for many important optimization techniques, including register allocation, function inlining, and instruction scheduling. Estimates derived from profiling with sample inputs are generally regarded as the most accurate source of this information; static (compile-time) estimates are considered to be distinctly inferior. If static estimates were shown to be competitive, however, their convenience would outweigh minor gains from profiling, and they would provide a sound basis for optimization when profiling is impossible.
Systematic analysis of the IgG antibodyimmune response against varicella zoster virus (VZV) using a self-assembled protein microarray (2010)

Varicella zoster virus (VZV) is a human herpesvirus encoding at least 69 distinct viral proteins which causes chickenpox after primary infection and shingles during reactivation and which is particularly important in pregnancy and immunocompromised patients. Current serodiagnostic tests are either based on whole cell lysates or glycoprotein preparations. In order to investigate the humoral immune response to VZV infection or vaccination in more detail, and to improve the currently available diagnostic assays, we developed a nucleic acid programmable protein array (NAPPA) containing all 69 VZV proteins and performed a detailed analysis of 68 sera from individuals with either no, a previous or an acute VZV infection. In addition to the known reactive glycoprotein antigens (ORF 5, ORF 14, ORF 31, ORF 37, ORF 68), we discovered IgG antibodies against a variety of other membrane (ORF 2, ORF 24), capsid (ORF 20, ORF 23, ORF 43) and tegument (ORF 53, ORF 9, ORF 11) proteins, as well as other proteins involved in virus replication and assembly (ORF 25, ORF 26, ORF 28) and the transactivator proteins ORF 12, ORF 62 and ORF 63. All of these antigens were only reactive in a subset of VZV-positive individuals. A subset of the newly identified VZV antigens was validated by western blot analysis. Using these seroreactive new VZV antigens, more sensitive assays and tests distinguishing between different clinical entities may be developed.
Heat Transfer in a Rotating Radial Channel With Swirling Internal Flow (1998)

This paper presents experimental results for heat transfer in swirling internal flow, obtained in two ways. A test rig simulated a rotating blade’s leading edge internal passage with heated walls and screw-shaped cooling swirl generated by flow introduced through discrete tangential slots. Spatially resolved variations of the surface heat transfer coefficients were measured in the rotating rig using an IR radiometer. A blade tested in the actual engine environment had similar geometry of the leading edge cooling passage. The blade surface temperatures were mapped in the engine with thermal paints and compared with a traditional convective cooling configuration. The data from the rotating rig and engine measurements are also compared with non-rotating heat transfer results obtained in the hot cascade using a traversing pyrometer at a realistic wall-to-coolant temperature ratio. The results are presented for realistic rotational numbers, ranging from 0 to 0.023, and for representative Reynolds number of 20,000 based on the channel diameter. The effect of Coriolis forces is evident with the change of direction of the rotation. A slight negative influence of the crossflow, which increased toward the outer radius of the channel, was recorded in the rig test results. The results presented will assist in better understanding of the screw-shaped swirl cooling technique, providing the next step toward the application of this highly-effective internal cooling method for the leading edges of turbine blades.
Preparation of Some Substituted β-Phenylisovaleric Acids (1948)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPreparation of Some Substituted β-Phenylisovaleric AcidsJoseph Corse and Ewald RohrmannCite this: J. Am. Chem. Soc. 1948, 70, 1, 370–371Publication Date (Print):January 1, 1948Publication History Published online1 May 2002Published inissue 1 January 1948https://pubs.acs.org/doi/10.1021/ja01181a114https://doi.org/10.1021/ja01181a114research-articleACS PublicationsRequest reuse permissionsArticle Views132Altmetric-Citations9LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts
Unnatural Amino Acids (2011)

Even though they are present in nature, non-proteinogenic amino acids are usually defined as unnatural or non-natural. Beside their structural diversity, interest in these compounds is due to their oc
Dispersion Ring-Opening Metathesis Polymerization of Norbornene Using PEO-Based Stabilizers (2002)

Polynorbornene-based latex particles were prepared via dispersion ring-opening metathesis polymerization (ROMP) of norbornene (NB) in dichloromethane/ethanol medium and in the presence of a α-norbornenyl poly(ethylene oxide) macromonomer (NB−PEO). Colloidal dispersions in the 200−600 nm size range were obtained and characterized by electron microscopy and dynamic light scattering. This paper also investigates the reaction parameters that influence both the structure of the PNB-g-PEO graft copolymer formed and the characteristics of the resulting latex. In particular, the effect due to the macromonomerits structure, concentration, and molar massand also the role respectively played by the medium polarity, the monomer concentrations, and initiator concentrations are discussed. The mode of addition of norbornene was also investigated. Attempts to synthesize pure polynorbornene latex particles are also described using either unreactive PEO-based stabilizers or PNB-g-PEO seeds.
The Allyloxycarbonyl (Aloc) Moiety—Conversion of an Unsuitable into a Valuable Amino Protecting Group for Peptide Synthesis (1984)

A novel method for the cleavage of the Aloc protecting group (Aloc = allyloxycarbonyl) permits the effective and selective synthesis of sensitive peptide derivatives, e.g. with serine residues. The protecting group can be removed from peptide esters such as Aloc‐Phe‐Ser( t Bu)‐O t Bu via catalytic allyl transfer with [Pd(PPh 3 ) 4 ] to dimendone; the t Bu groups are retained. In contrast, with CF 3 COOH only the t Bu groups are removed from the Aloc‐ t Bu esters.
ShotTagger (2011)

Social video sharing websites allow users to annotate videos with descriptive keywords called tags, which greatly facilitate video search and browsing. However, many tags only describe part of the video content, without any temporal indication on when the tag actually appears. Currently, there is very little research on automatically assigning tags to shot-level segments of a video. In this paper, we leverage user's tags as a source to analyze the content within the video and develop a novel system named ShotTagger to assign tags at the shot level. There are two steps to accomplish the location of tags at shot level. The first is to estimate the distribution of tags within the video, which is based on a multiple instance learning framework. The second is to perform the semantic correlation of a tag with other tags in a video in an optimization framework and impose the temporal smoothness across adjacent video shots to refine the tagging results at shot level. We present different applications to demonstrate the usefulness of the tag location scheme in searching, and browsing of videos. A series of experiments conducted on a set of Youtube videos has demonstrated the feasibility and effectiveness of our approach.
Columnar mesophase from a new hybrid siloxane-triphenylene (2002)

The design, the synthesis and the mesomorphic properties of a new disc-like mesogen based on a hexasubstituted triphenylene core terminated with pentamethyldisiloxane pendant groups are reported. The siloxane fragments were grafted to the six terminal olefinic branches of a triphenylene precursor by a Pt-catalysed hydrosilylation reaction. Both the hexaolefinic and the hexasiloxane derivatives are mesomorphic, showing a rectangular columnar (ColR—p2gg) mesophase between 55 and 88 °C for the former, and a broad hexagonal (ColH—p6mm) mesophase between ambient temperature and 125 °C for the latter. The liquid crystalline behaviour was investigated by means of differential scanning calorimetry, polarised-light optical microscopy, and X-ray diffractometry. The mesophase temperature range and stability were considerably extended for the hybrid compound with respect to the siloxane-free compound. This behaviour is explained on the basis of enhanced microsegregation between the chemically distinct constituent components of the molecule.
Broadband Isolators and Variable Attenuators for Millimeter Wavelengths (1961)

A Faraday rotator has been developed which provides rotation independent of frequency in a band greater than 20% centered at 55 kmc. The loss characteristics plotted in Fig. 1 are typical for broadband variable attenuators incorporating this rotator. The minimum and maximum loss characteristics are for fixed fields of 0 and ~30 oe, respectively. Figure 2 contrasts the performance of a broadband isolator (solid curves) utilizing this rotator with a "conventional" Faraday rotation isolator (dashed curves). The broadband isolator has a forward to reverse loss ratio >30 over a band 10 times as great as that for the "conventional" rotator and from 3 to 5 times greater than any other isolator known, to the author, to operate at these frequencies.
Development of a process for high capacity arc heater production of silicon for solar arrays. Quarterly technical report, April--June 1977 (1977)

A program to develop a high temperature silicon production process using existing electric arc heater technology is reported. Silicon tetrachloride and a reductant will be coinjected into an arc heated mixture of hydrogen and argon. Under these conditions, both reactants will be vaporized and a gas phase reaction will occur yielding molten silicon droplets and the co-product salt vapor. Techniques for high temperature separation and collection of the molten silicon will be developed using standard engineering approaches, and the salt vapor will later be electrolytically separated into its elemental constituents for recycle. The major activities performed were to assemble cost information, select components and vendors, and estimate raw material and labor requirements (fabrication/assembly/ for the individual subsystems, i.e., SiCl/sub 4/ storage and injection, Na storage and injection, plasma reactor and arc heaters, silicon separation and collection, and effluent (by-product) collection and disposal. Complete subsystem costs were compiled for the test system. Additional analyses were conducted to provide further consideration of silicon particle growth. Design refinements were incorporated into the silicon collection system. An alternative design in place of the dual-water cooled condensers for effluent collection was analyzed.
El grado de Derecho de la Universitat Oberta de Catalunya: una apuesta por la formación jurídica en la sociedad de la información (2008)

En las próximas páginas nos proponemos exponer el proceso de elaboración de la memoria elaborada para la verificación del grado de Derecho de la Universitat Oberta de Catalunya, así como sus principales orientaciones.
Practical Application of Polarization and Light Control for Reduction of Reflected Glare. (1963)

Mantidis ootheca (Sang Piao Xiao) is well known mantis eggs in a foamy pouch. The purpose of the present study was to investigate the underlying cellular mechanisms of the nitric oxide (NO)-releasing property of the aqueous extract of Mantidis ootheca (AMO) in rat aorta and vascular endothelial cells. AMO was examined for its vascular relaxant effect in isolated phenylephrine-precontracted rat thoracic aortic rings. The roles of the nitric oxide (NO) signaling in the AMO-induced effects were tested in human umbilical vein endothelial cells (HUVECs). HUVEC treated with AMO produced higher amount of NO compared to control. However, AMO-induced increases in NO production were blocked by pretreatment with N<sup>G</sup>-nitro-L-arginine methylester (L-NAME) or wortmannin. AMO increased in phosphorylation levels of endothelial nitric oxide synthase (eNOS) and Akt in HUVECs, which were attenuated by a NOS and Akt inhibitors. In aortic ring, AMO-induced dose-dependent relaxation of phenylephrine-precontracted aorta was abolished by removal of functional endothelium. Pretreatment with L-NAME, <sup>1</sup>H-[1,2,4]-oxadiazolo-[4,3-alpha]-quinoxalin-1-one (ODQ), and KT5823 inhibited the AMO-induced vasorelaxation. Similarly, wortmannin and LY-294002, an inhibitors of the phosphatidylinositol 3-kinase (PI3K), an upstream signaling molecule of eNOS, attenuated the AMO-induced vasorelaxation. Moreover, AMO-induced increases in cGMP production were blocked by pretreatment with L-NAME or ODQ. The vasorelaxant effect of AMO was attenuated by tetraethylammonium, 4-aminopyridine, and glibenclamide. We conclude that AMO relaxed vascular smooth muscle via endothelium-dependent activation of PI3K/Akt-mediated NO-cGMP-PKG signaling pathway and possible involvement of K<sup>+</sup> channel.
Direct Observation of Asymmetric 1H/14N Triplets and Applications of Asymmetric Dipole-Dipole Splittings to Structure Determination by Solid-State NMR Spectroscopy (1995)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDirect Observation of Asymmetric 1H/14N Triplets and Applications of Asymmetric Dipole-Dipole Splittings to Structure Determination by Solid-State NMR SpectroscopyR. McNamara, C. H. Wu, L. E. Chirlian, and S. J. OpellaCite this: J. Am. Chem. Soc. 1995, 117, 29, 7805–7811Publication Date (Print):July 1, 1995Publication History Published online1 May 2002Published inissue 1 July 1995https://pubs.acs.org/doi/10.1021/ja00134a028https://doi.org/10.1021/ja00134a028research-articleACS PublicationsRequest reuse permissionsArticle Views177Altmetric-Citations8LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts
Hydroxytyrosol and Derivatives: Isolation, Synthesis, and Biological Properties (2008)

Hydroxytyrosol is a phenol found predominantly in the olive tree (Olea europea). It shows a broad spectrum of beneficial effects such as cancer chemoprevention by inducing apoptosis, cardioprotection and anti-atherogenic activity, skin photoprotection and anti-inflammatory activity. These biological properties are based on scavenging of reactive oxygen species by hydroxytyrosol, being more active than antioxidant vitamins and synthetic antioxidants. Its biological activities and beneficial effects on human health has stimulated the development of new methods of extraction and purification from olive mill wastewater, from table olive processing, or from leaves. Different procedures for the chemical and enzymatic synthesis of hydroxytyrosol have been developed from tyrosol, from 3,4-dihydroxyphenylacetic acid and its methyl ester, and from oleuropein. Some hydroxytyrosol acyl derivatives have been prepared by chemical and chemoenzimatic methods in order to increase both stability and solubility in lipophilic preparations. Mechanistic experiments on hydroxytyrosol oxidation and isolation of species formed by oxidation are also reported.
Performance Analysis of a Coaxial Helicopter in Hover and Forward Flight (2017)

The performance of a coaxial rotor system has been analyzed by establishing a proper basis of comparison between a conventional single rotor and coaxial rotor. An attempt has also been made to better understand the complicated aerodynamic interactions associated with coaxial rotor wakes by using a free-vortex methodology (FVM). The FVM is a Lagrangian-based wake convection methodology, which solves for the evolution of the vortical wake produced by the rotor blades under the inﬂuence of an external ﬂow. The extent to which the two rotors interact with each other was found to be highly dependent on the inter-rotor spacing. To this end, parametric variations of inter-rotor spacing were performed to show the effect on performance on each rotor and also as a system. An attempt was made to quantify the effect of aerodynamic interference on the performance of the upper and lower rotor by comparing them to an isolated rotor. It was shown that the equivalent single rotor performs better than the coaxial rotor at moderately high advance ratios, while the coaxial rotor performs better in hover. The inter-rotor spacing profoundly affected the performance of the coaxial rotor system, giving higher power requirements at lower inter-rotor spacing. Finally, it was shown that the upper rotor becomes affected by the lower rotor in hover, and while this was an expected result in hover and low advance ratios, the performance of the upper rotor was also affected at higher advance ratios.
Modelling and PID controller design for a quadrotor unmanned air vehicle (2010)

This paper presents the modelling of a four rotor vertical take-off and landing (VTOL) unmanned air vehicle known as the quadrotor aircraft. The paper presents a new model design method for the flight control of an autonomous quad rotor. The paper describes the controller architecture for the quadrotor as well. The dynamic model of the quad-rotor, which is an under actuated aircraft with fixed four pitch angle rotors, will be described. The Modeling of a quadrotor vehicle is not an easy task because of its complex structure. The aim is to develop a model of the vehicle as realistic as possible. The model is used to design a stable and accurate controller. This paper explains the developments of a PID (proportional-integral-derivative) control method to obtain stability in flying the Quad-rotor flying object. The model has four input forces which are basically the thrust provided by each propeller connected to each rotor with fixed angle. Forward (backward) motion is maintained by increasing (decreasing) speed of front (rear) rotor speed while decreasing (increasing) rear (front) rotor speed simultaneously which means changing the pitch angle. Left and right motion is accomplished by changing roll angle by the same way. The front and rear motors rotate counter-clockwise while other motors rotate clockwise so that the yaw command is derived by increasing (decreasing) counter-clockwise motors speed while decreasing (increasing) clockwise motor speeds.
Detecting radio frequency interference for CSI measurements on COTS WiFi devices (2017)

In recent years, WiFi-based sensing applications have been proliferated due to growing capacities of the physical layer. Channel State Information (CSI), which depicts the characteristics of propagation environment and reflects different human behaviors, can be easily obtained on commodity WiFi devices with slight driver modification. For the sake of higher accuracy and robustness of CSI-based sensing, a variety of research efforts have been devoted to model refinement, algorithm optimization and data sanitization. Radio frequency interference (RFI) is a crucial problem, which, however, is surprisingly overlooked and largely unexplored. The sensing performance can be significantly boosted by identifying and properly handling the interfered CSI measurements. In this paper, we demonstrate that it is feasible to identify the interfered CSI measurements due to the unique properties induced by RFI. We propose two RFI detection algorithms by utilizing cyclostationary analysis from different angles. Experimental results on off-the-shelf WiFi devices show that both algorithms are robustly stable for different scenarios and can achieve a remarkable overall accuracy of > 90%.
Privacy Protection: p-Sensitive k-Anonymity Property (2006)

In this paper, we introduce a new privacy protection property called p-sensitive k-anonymity. The existing kanonymity property protects against identity disclosure, but it fails to protect against attribute disclosure. The new introduced privacy model avoids this shortcoming. Two necessary conditions to achieve p-sensitive kanonymity property are presented, and used in developing algorithms to create masked microdata with p-sensitive k-anonymity property using generalization and suppression.
MPEG-4 : una nueva representación de la información audio-visual (1996)

Peer Reviewed
Fusing Multiview and Photometric Stereo for 3D Reconstruction under Uncalibrated Illumination (2010)

We propose a method to obtain a complete and accurate 3D model from multiview images captured under a variety of unknown illuminations. Based on recent results showing that for Lambertian objects, general illumination can be approximated well using low-order spherical harmonics, we develop a robust alternating approach to recover surface normals. Surface normals are initialized using a multi-illumination multiview stereo algorithm, then refined using a robust alternating optimization method based on the l(1) metric. Erroneous normal estimates are detected using a shape prior. Finally, the computed normals are used to improve the preliminary 3D model. The reconstruction system achieves watertight and robust 3D reconstruction while neither requiring manual interactions nor imposing any constraints on the illumination. Experimental results on both real world and synthetic data show that the technique can acquire accurate 3D models for Lambertian surfaces, and even tolerates small violations of the Lambertian assumption.