gebhart/patrepeval huggingface dataset:
Balance of Power: Dynamic Thermal Management for Internet Data Centers (2005)

Internet-based applications and their resulting multitier distributed architectures have changed the focus of design for large-scale Internet computing. Internet server applications execute in a horizontally scalable topology across hundreds or thousands of commodity servers in Internet data centers. Increasing scale and power density significantly impacts the data center's thermal properties. Effective thermal management is essential to the robustness of mission-critical applications. Internet service architectures can address multisystem resource management as well as thermal management within data centers.
ChemInform Abstract: An Analysis of the Complementary Stereoselective Alkylations of Imidazolidinone Derivatives Toward α‐Quaternary Proline‐Based Amino Amides. (2015)

Abstract The alkylation of proline‐type imidazolidinones (I) and (V) derived from isobutyraldehyde or 1‐naphthaldehyde gives stereodivergent products, which can be readily cleaved to afford both α‐alkylated proline enantiomers.
<title>Role of photoconductivity in molecularly doped photorefractive polymer</title> (1995)

The photorefractive effect is a reversible mechanism of holographic grating formation in electro-optic materials, that has potential applications in integrated optics, optical data storage, optical computing, and several other areas. This effect was recently observed in photorefractive polymers doped with charge transport agents. The grating formation is initialized by the photoconductive response which includes charge generation, mobility, and trapping, occurring in successive order. Finally, the grating is formed as a result of modulation of the refractive index by the resulting space charge field, via the electro-optic (Pockels) effect. We present the results of photoconductive measurements as a function of temperature, applied electric field, and illuminated intensity. The investigation is focused on the nonlinear optical polymer bisphenol A 4-4-nitroaminostilbene mixed with 30 weight % of the hole transport agent diethylamino-benzaldehyde diphenyl hydrazone. We observed that the photoconductivity of the photorefractive polymer has the form exp[ aE<SUP>1/2</SUP> + bE<SUP>1/2</SUP>/T<SUP>2</SUP> - c/T<SUP>2</SUP>] in agreement with the diorder theory of the well- known hopping model developed for charge-transport in molecularly doped polymers. We also observed that the apparent hopping distribution bandwidth increases with increased intensity, consistent with an increasing density of states.
Design techniques for loss mitigation in metamaterial reflector antennas (2015)

There are often discrepancies between the behavior of a metamaterial reflector unit cell in an infinitely periodic environment and in a non-ideal environment in which the reflection phase varies across a metamaterial reflector. This work considers the performance of several capacitively loaded metamaterial unit cells in order to improve the realized gain of a reflector antenna. Each structure exploits capacitive elements to achieve a desired reflection phase gradient across the surface of the metamaterial reflector. The influence of interconnectedness and surface currents on the reflector antenna performance are analyzed and compared with the antenna performance from an ideal impedance surface reflector.
Properties of polycrystalline diamond as x-ray mask (1998)

1.5 micrometer thick polycrystalline diamond film was deposited using microwave plasma chemical vapor deposition (MPCVD) as x-ray mask membrane with 0.1 approximately 0.25 micrometer seeding. The temperature is controlled between 820 to 830 degree Celsius and the ratios of CH<SUB>4</SUB>/H<SUB>2</SUB> gas mixtures are varied for the quality and stress of the diamond film. The optical properties and radiation damage of the membrane will be demonstrated. Low tensile stress diamond membrane has been formed with backside KOH etching. Surface morphology was monitored by the AFM and the quality of the diamond film was measured by the Raman spectroscopy.
IV Photorefractive and liquid crystal materials (1987)

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 P. S. Brody, U. Efron, J. Feinberg, A. M. Glass, R. W. Hellwarth, R. R. Neurgaonkar, G. Rakuljic, G. C. Valley, and C. Woods, "IV. Photorefractive and liquid crystal materials," Appl. Opt. 26, 220-224 (1987) Export Citation BibTex Endnote (RIS) HTML Plain Text Citation alert Save article
Enhanced trajectory-based action recognition using human pose (2017)

Action recognition using dense trajectories is a popular concept. However, many spatio-temporal characteristics of the trajectories are lost in the final video representation when using a single Bag-of-Words model. Also, there is a significant amount of extracted trajectory features that are actually irrelevant to the activity being analyzed, which can considerably degrade the recognition performance. In this paper, we propose a human-tailored trajectory extraction scheme, in which trajectories are clustered using information from the human pose. Two configurations are considered; first, when exact skeleton joint positions are provided, and second, when only an estimate thereof is available. In both cases, the proposed method is further strengthened by using the concept of local Bag-of-Words, where a specific codebook is generated for each skeleton joint group. This has the advantage of adding spatial human pose awareness in the video representation, effectively increasing its discriminative power. We experimentally compare the proposed method with the standard dense trajectories approach on two challenging datasets.
Identity between polysaccharide antigens of Moraxella nonliquefaciens, group B Neisseria meningitidis, and Escherichia coli K1 (non-O acetylated) (1991)

A surface polysaccharide antigen of Moraxella nonliquefaciens, reported to be cross-reactive with the capsular polysaccharides of group B Neisseria meningitidis and Escherichia coli K1 (K. Błvre, K. Bryn, O. Closs, N. Hagen, and L. O. Froholm, NIPH Ann. 6:65-73, 1983), was isolated, purified, and characterized chemically, immunologically, and by nuclear magnetic resonance. This polysaccharide was shown to be a linear homopolymer of alpha (2----8)-linked N-acetylneuraminic acid, identical to the capsular polysaccharide of group B N. meningitidis and O-acetyl-negative variants of E. coli K1.
Swirp (Submm-Wave and Long Wave Infrared Polarimeter); A New Tool for Investigations of Ice Distribution and Size in Cyrrus Clouds (2019)

Climate models must account for several sources of uncertainty in their analysis; one mayor such source is the effect of clouds, and ice clouds in particular. The effect of ice particles embedded in the clouds is poorly constrained, which allows ice clouds to be used as a tuning parameter to balance the budget of incoming and outgoing radiation at the top of the atmosphere. This lack of precise knowledge of cloud ice and of accuracy in its microphysical property leads to large uncertainty about clouds and their processes within the atmosphere. NASA's Aerosol, Cloud and Ecosystems (ACE), an Earth Science Decadal Survey (DS) mission, recommends that a science payload with submillimeterwave (sub-mm) and longwave infrared (LWIR) radiometers be developed for such cloud ice measurement.This paper reports on the effort to design, build and deploy such an instrument.
The Interfacial Strengths of Coated and Uncoated SiC Monofilaments Embedded in Borosilicate Glass (2008)

Two SiC monofilaments, differing only in that one was coated with a carbon-rich material, were embedded in the same composition glass matrix. Single-fiber pull-out and push-out tests were then performed in order to determine the effect interfacial composition had on the apparent average shear strength and other mechanical parameters. Because these systems were identical except for the coating on the fiber, any measured differences in mechanical properties were attributed to effects of the coating. Measured apparent average shear strengths were higher for samples made from the uncoated SiC monofilament than for samples with the carbon-rich surface. Although the coefficient of thermal expansion for the fiber was greater than that of the matrix, in most cases, a significant frictional stress was measured. The coefficient of initial friction was higher for the uncoated SiC monofilaments than for the coated monofilament. SEM photomicrographs showed that the surface of the bare SiC monofilaments wen pitted, and that the fracture surfaces were rough compared to that of the coated SiC monofilaments.
Crystal structure of (ethoxyethylidene)dimethylazanium ethyl sulfate (2015)

In the title salt, C 6 H 14 NO + ·C 2 H 5 SO 4 − , the C—N bond lengths in the cation are 1.2981 (14), 1.4658 (14) and 1.4707 (15) Å, indicating double- and single-bond character, respectively. The C—O bond length of 1.3157 (13) Å shows double-bond character, indicating charge delocalization within the NCO plane of the iminium ion. In the crystal, C—H...O hydrogen bonds between H atoms of the cations and O atoms of neighbouring ethyl sulfate anions are present, generating a three-dimensional network.
A New Polysaccharide with a Long Evolutionary History (2018)

For the first time in a very long time, a new polysaccharide is reported in plants. [Roberts et al. (2018)][1] discovered an arabinoglucan in the moss Physcomitrella patens . This discovery came about not as a result of biochemical characterization of the moss cell wall, but rather as a targeted
Silver-Based Nanodisk Codes (2010)

We report a novel method for synthesizing silver-based nanodisk code (NDC) structures using on-wire lithography, where we employ milder synthetic and etching conditions than those used to synthesize the analogous gold structures. The silver structures exhibit stronger surface-enhanced Raman scattering signals than their Au counterparts at 633 and 532 nm excitation and, therefore, lead to lower limits of detection when used in the context of DNA-based detection assays. Finally, use of two enhancing nanostructured materials in one disk code dramatically increases the information storage density for encoding. For example, a disk code consisting of 5 gold disk pairs has 13 unique combinations of enhancing patterns, while one with 5 disk pairs that can be either gold or silver has 98.
Pattern projection in the short-wave infrared (SWIR): accurate, eye-safe 3D shape measurement (2019)

3D sensors based on pattern projection are a popular measuring instrument for the three-dimensional acquisition of people, e.g., for identification purposes or for human-machine interaction. State-of-the-art sensors typically project the pattern(s) at a wavelength of 850 or 940 nm. Although illumination at these wavelengths is barely perceptible or completely imperceptible to the human eye, almost 80 or 50% of the incident radiation reaches the retina. In order to make the 3D measurement of faces not only free of disturbance, but also to make it considerably easier to fall below the limits for retinal exposure, the short-wave infrared (SWIR) is well suited. For instance, at a wavelength of 1450 nm, only a negligible portion of the incident radiation hits the lens of the eye, let alone the retina. Since the terrestrial solar spectrum has a minimum in this wavelength range, the susceptibility to natural ambient light is also reduced. Therefore, we have developed an SWIR 3D scanner, which we present and characterize in this article.
Amphiphilic Thiol Polymer Nanogel Removes Environmentally Relevant Mercury Species from Both Produced Water and Hydrocarbons (2021)

Technologies for removal of mercury from produced water and hydrocarbon phases are desired by oil and gas production facilities, oil refineries, and petrochemical plants. Herein, we synthesize and demonstrate the efficacy of an amphiphilic, thiol-abundant (11.8 wt % S, as thiol) polymer nanogel that can remove environmentally relevant mercury species from both produced water and the liquid hydrocarbon. The nanogel disperses in both aqueous and hydrocarbon phases. It has a high sorption affinity for dissolved Hg(II) complexes and Hg-dissolved organic matter complexes found in produced water and elemental (Hg<sup>0</sup>) and soluble Hg-alkyl thiol species found in hydrocarbons. X-ray absorption spectroscopy analysis indicates that the sorbed mercury is transformed to a surface-bound Hg(SR)<sub>2</sub> species in both water and hydrocarbon regardless of its initial speciation. The nanogel had high affinity to native mercury species present in real produced water (>99.5% removal) and in natural gas condensate (>85% removal) samples, removing majority of the mercury species using only a 50 mg L<sup>-1</sup> applied dose. This thiolated amphiphilic polymeric nanogel has significant potential to remove environmentally relevant mercury species from both water and hydrocarbon at low applied doses, outperforming reported sorbents like sulfur-impregnated activated carbons because of the mass of accessible thiol groups in the nanogel.
<title>Fourier transform Raman spectroscopy for the study of the vulcanization process</title> (1992)

The vulcanization process of sulphur with EPDM using near infrared Fourier transform Raman spectroscopy was studied. The initial aim of the project was to concentrate on the reaction as a function of temperature.
Diborheterocyclen: Oxadiborolan – Oxadiborinan – Diazadiborinan (1983)

Abstract Die Diborylverbindungen R(Cl)B(CH 2 ) n B(Cl)R (R  Cl oder CH 3 ; n = 2, 3) und die silylierten oder stannylierten Ausgangsverbindungen [(CH 3 ) 3 Y] 2 X (Y  Si oder Sn; X  S, NCH 3 , O, NCH 3 NCH 3 ) wurden für (5+1)‐ und (4+2)‐Cyclokondensationsreaktionen eingesetzt. Dimethylether war ein weiteres Ausgangsmolekül. Während keine Thiadiborinane isoliert werden konnten, ließen sich Stickstoff oder Sauerstoff enthaltende Heterocyclen in unterschiedlicher Ausbeute gewinnen. Darstellung und Eigenschaften dieser Verbindungen werden beschrieben.
Cu(OTf)2 Catalyzed high yield synthesis of Hantzsch 1,4-dihydropyridines (2007)

Copper(II) triflate catalyzes efficiently the three-component condensation of aldehydes, β-ketoesters and ammonium acetate in acetonitrile at 25°C to afford the corresponding Hantzsch 1,4-dihydropyridines in high yields.
Autoimmunity in the relatives of patients with immunodeficiency diseases. (1977)

Autoimmune disorders are reportedly more frequent than expected in immunodeficient patients and in their relatives. The hypothesis that genetic factors related to immunodeficiency may predispose to the development of autoimmunity was studied in relatives of patients with variable immunodeficiency (VID), ataxia-telangiectasia (A-T), or X-linked infantile agammaglobulinaemia (X-LA). Close relatives of patients with VID or A-T had thyroid and gastric autoantibodies significantly more frequently than did control subjects. No abnormalities were detected in unaffected relatives of X-LA patients. The increased incidence of organ-specific autoantibodies in close relatives of VID patients was confined to those families with more than one member with immunodeficiency. These data suggest that there are at least two forms of VID, one of which is associated with familial autoimmunity. It is postulated that heterozygous carriers of the A-T gene and persons with genes involved in the development of VID may exhibit T-lymphocyte dysfunction which predisposes them to autoimmunity.
The Chemical Structure of Carbon Nanothreads Analyzed by Advanced Solid-State NMR (2018)

Carbon nanothreads are a new type of one-dimensional sp<sup>3</sup>-carbon nanomaterial formed by slow compression and decompression of benzene. We report characterization of the chemical structure of <sup>13</sup>C-enriched nanothreads by advanced quantitative, selective, and two-dimensional solid-state nuclear magnetic resonance (NMR) experiments complemented by infrared (IR) spectroscopy. The width of the NMR spectral peaks suggests that the nanothread reaction products are much more organized than amorphous carbon. In addition, there is no evidence from NMR of a second phase such as amorphous mixed sp<sup>2</sup>/sp<sup>3</sup>-carbon. Spectral editing reveals that almost all carbon atoms are bonded to one hydrogen atom, unlike in amorphous carbon but as is expected for enumerated nanothread structures. Characterization of the local bonding structure confirms the presence of pure fully saturated "degree-6" carbon nanothreads previously deduced on the basis of crystal packing considerations from diffraction and transmission electron microscopy. These fully saturated threads comprise between 20% and 45% of the sample. Furthermore, <sup>13</sup>C-<sup>13</sup>C spin exchange experiments indicate that the length of the fully saturated regions of the threads exceeds 2.5 nm. Two-dimensional <sup>13</sup>C-<sup>13</sup>C NMR spectra showing bonding between chemically nonequivalent sites rule out enumerated single-site thread structures such as polytwistane or tube (3,0) but are consistent with multisite degree-6 nanothreads. Approximately a third of the carbon is in "degree-4" nanothreads with isolated double bonds. The presence of doubly unsaturated degree-2 benzene polymers can be ruled out on the basis of <sup>13</sup>C-<sup>13</sup>C NMR with spin exchange rate constants tuned by rotational resonance and <sup>1</sup>H decoupling. A small fraction of the sample consists of aromatic rings within the threads that link sections with mostly saturated bonding. NMR provides the detailed bonding information necessary to refine solid-state organic synthesis techniques to produce pure degree-6 or degree-4 carbon nanothreads.
Performance evaluation of limited feedback transmit precoding via phase rotation in correlated MIMO channel (2011)

This paper proposes a phase rotation (PR) method as a limited feedback transmit precoding for correlated multiple input multiple-output (MIMO) channel. In the conventional PR precoding, the phase angle is obtained from a channel correlation matrix to reduce the influence of spatial correlation. We propose a PR precoding using instantaneous channel state information (CSI), which has a potential to achieve more reliable communication but requires more frequent CSI feedbacks compared to the conventional method. To reduce the feedback cost, a quantization of feedback information is employed. By the computer simulations, we showed that the suitable quantization size depends on the modulation type . We also showed the symbol error rate performance in terms of the Doppler shift since the conventional method has more robustness against the Doppler shift. The simulation results showed that the proposed PR method outperforms the conventional method in the slow fading environment.
ChemInform Abstract: Synthetic Applications of 2‐Ethylhexanoic Acid Derived Reagents (2012)

Abstract Review: 62 refs.
Solid–Liquid Lithium Electrolyte Nanocomposites Derived from Porous Molecular Cages (2018)

We demonstrate that solid-liquid nanocomposites derived from porous organic cages are effective lithium ion electrolytes at room temperature. A solid-liquid electrolyte nanocomposite (SLEN) fabricated from a LiTFSI/DME electrolyte system and a porous organic cage exhibits ionic conductivity on the order of 1 × 10<sup>-3</sup> S cm<sup>-1</sup>. With an experimentally measured activation barrier of 0.16 eV, this composite is characterized as a superionic conductor. Furthermore, the SLEN displays excellent oxidative stability up to 4.7 V vs Li/Li<sup>+</sup>. This simple three-component system enables the rational design of electrolytes from tunable discrete molecular architectures.
Preclinical pharmacokinetics of the novel PI3K inhibitor GDC-0941 and prediction of its pharmacokinetics and efficacy in human (2011)

The phosphatidylinositol 3-kinase (PI3K) pathway is a major determinant of cell cycling and proliferation. Its deregulation is associated with the development of many cancers. GDC-0941, a potent and selective inhibitor of PI3K, was characterised preclinically in in vitro and in vivo studies. Plasma protein binding was extensive, with free fraction less than 7%, and blood-to-plasma ratio ranged from 0.6 to 1.2 among the species tested. GDC-0941 human hepatic clearance was predicted to be moderate by liver microsomal incubations. GDC-0941 had high permeability in Madin-Darby canine kidney cells. The clearance of GDC-0941 was high in mouse (63.7 mL/min/kg), rat (49.3 mL/min/kg) and cynomolgus monkey (58.6 mL/min/kg), and moderate in dog (11.9 mL/min/kg). The volume of distribution ranged from 2.52 L/kg in rat to 2.94 L/kg in monkey. Oral bioavailability ranged from 18.6% in monkey to 77.9% in mouse. Predicted human clearance and volume of distribution using allometry were 6 mL/min/kg and 2.9 L/kg, respectively. The human efficacious doses were predicted based on results from preclinical pharmacokinetic studies and xenograft models. GDC-0941 preclinical characterisation and predictions of its properties in human supported its progression towards clinical development. GDC-0941 is currently in phase II clinical trials.
A scalable high-performance computing solution for networks on chips (2002)

The Eclipse network-on-a-chip architecture uses a sophisticated parallel programming model, realized through multithreaded processors, interleaved memory modules, and a high-capacity interconnection network to support system-on-a-chip designs.
Optimal Design of Dipole Potentials for Efficient Loading of Sr Atoms (1999)

We propose and demonstrate a novel far-off-resonance optical dipole trap (FORT) that is compatible with Doppler cooling. Strontium atoms are magneto-optically cooled and trapped by the spin-forbidden transition 1 S 0 - 3 P 1 at 689 nm, while the tight-focused infrared laser couples these two states to the respective dipole-allowed singlet and triplet states to generate the same amount of light shift. These designed light shifts for the cooling transition, enabling simultaneous Doppler cooling and dipole trapping, lead to the efficient loading of cooled atoms into the FORT with a few recoil energies. This scheme provides an important step towards the realization of quantum degenerate strontium atoms by purely optical means.
Rapid Communication : Synthesis and Electrochemical Studies on a Crown Ether Bearing a Naphthoquinone Acceptor (2002)

The bichromophoric crown ether N18C6NQ (1) has been synthesized in three steps from readily available starting materials. The main theme of the synthetic strategy involves the conjugate addition of an alcohol to 2,3-dichloronaphthoquinone in the presence of a base. Preliminary electrochemical and photophysical studies on (1) have been undertaken. The addition of alkali metal cations to the crown ether (1) causes significant changes in the first and second reduction potentials of the naphthoquinone (NQ) chromophore. In the case of the first process, a correlation between the reversible potential and cation ‘fit’ exists. The steady-state fluorescence spectra of (1) are quenched substantially (&amp;gt; 90%) as compared with the model (2) in both CH2Cl2 and dimethylformamide solution. These systems are of interest in the development of a new family of crown ether based photosynthetic mimics and ion-selective sensors.