gebhart/patrepeval huggingface dataset:
Nanosynthesis Routes to New Tetrahedral Crystalline Solids: Silicon-like Si3AlP (2011)

We introduce a synthetic strategy to access functional semiconductors with general formula A(3)XY (A = IV, X-Y = III-V) representing a new class within the long-sought family of group IV/III-V hybrid compounds. The method is based on molecular precursors that combine purposely designed polar/nonpolar bonding at the nanoscale, potentially allowing precise engineering of structural and optical properties, including lattice dimensions and band structure. In this Article, we demonstrate the feasibility of the proposed strategy by growing a new monocrystalline AlPSi(3) phase on Si substrates via tailored interactions of P(SiH(3))(3) and Al atoms using gas source (GS) MBE. In this case, the high affinity of Al for the P ligands leads to Si(3)AlP bonding arrangements, which then confer their structure and composition to form the corresponding Si(3)AlP target solid via complete elimination of H(2) at ∼500 °C. First principle simulations at the molecular and solid-state level confirm that the Si(3)AlP building blocks can readily interlink with minimal distortion to produce diamond-like structures in which the P atoms are arranged on a common sublattice as third-nearest neighbors in a manner that excludes the formation of unfavorable Al-Al bonds. High-resolution XRD, XTEM, and RBS indicate that all films grown on Si(100) are tetragonally strained and fully coherent with the substrate and possess near-cubic symmetry. The Raman spectra are consistent with a growth mechanism that proceeds via full incorporation of preformed Si(3)AlP tetrahedra with residual orientational disorder. Collectively, the characterization data show that the structuro-chemical compatibility between the epilayer and substrate leads to flawless integration, as expected for pseudohomoepitaxy of an Si-like material grown on a bulk Si platform.
Patrouille Multi-Agent Dynamique, application en Robotique au Service de Personnes Mobiles (2016)

National audience
Active Electrodes for Wearable EEG Acquisition : Review and Design Methodology (2017)

Active electrodes (AEs), i.e., electrodes with built-in readout circuitry, are increasingly being implemented in wearable healthcare and lifestyle applications due to AEs' robustness to environmental interference. An AE locally amplifies and buffers μV-level EEG signals before driving any cabling. The low output impedance of an AE mitigates cable motion artifacts, thus enabling the use of high-impedance dry electrodes for greater user comfort. However, developing a wearable EEG system, with medical grade signal quality on noise, electrode offset tolerance, common-mode rejection ratio, input impedance, and power dissipation, remains a challenging task. This paper reviews state-of-the-art bio-amplifier architectures and low-power analog circuits design techniques intended for wearable EEG acquisition, with a special focus on an AE system interfaced with dry electrodes.
Digital Doping of ALD VO2 for Thermochromic Applications (2017)

Vanadium Dioxide (VO 2 ) is an interesting thermochromic material that undergoes a first order crystalline phase transition at a critical temperature (T c ) of 68˚C. This structural phase transition is accompanied by major changes in electrical and optical properties, particularly in the infrared. As such, VO 2 is suitable for many applications including microbolometers, adaptive thermal coatings, and passive spacecraft thermal shielding. While the T c of VO 2 is convenient for many applications, it is desirable to modify the T c to other values for either new applications or improved performance in the previously stated applications. The T c of VO 2 is known to be strain-mediated.[1] Strain in VO 2 has been induced via deposition of thin films onto lattice mismatched epitaxial substrates, as well as by doping with other transition metal elements besides vandium.[2], [3] For the first time, we are investigating digital doping of ALD VO 2 using other elements such as Al, Ti, Nb, and W by incorporation of their oxides into the binary ALD VO 2 process (TEMAV + O 3 ). We will discuss the fundamentals and limitations of doped ALD VO 2 growth and basic materials characterization, and will demonstrate the impact of dopant concentration and identity on the optical and electrical phase transition properties of the resulting films. Generally, inclusion of dopants such as Ti and Al into the ALD VO 2 process in amounts between 1% and 10% results in surfactant-like film growth behavior, with increasing dopant concentrations reducing RMS roughness of the ALD films from ~2 nm to ~0.2 nm. Higher concentrations of dopants also interfere with film crystallization during annealing, inhibiting the magnitude of the metal-insulator transition. Smaller concentrations of dopants, between 1% and 3%, can lower the T c of the VO 2 films while maintaining acceptable optical behavior, depending on dopant identity and concentration. In particular, we find that Nb doping at these low concentrations decreases T c of VO 2 by -13.5˚C/Nb%. [1] J. M. Atkin, S. Berweger, E. K. Chavez, M. B. Raschke, J. Cao, W. Fan, and J. Wu, “Strain and temperature dependence of the insulating phases of VO 2near the metal-insulator transition,” Phys. Rev. B , vol. 85, no. 2, pp. 020101–4, Jan. 2012. [2] W. Burkhardt, T. Christmann, B. K. Meyer, and W. Niessner, “W-and F-doped VO 2 films studied by photoelectron spectrometry,” Thin Solid Films , vol. 345, no. 2, pp. 229–235, 1999. [3] X. Wu, Z. Wu, C. Ji, H. Zhang, Y. Su, Z. Huang, J. Gou, X. Wei, J. Wang, and Y. Jiang, “THz Transmittance and Electrical Properties Tuning across IMT in Vanadium Dioxide Films by Al Doping,” ACS Appl. Mater. Interfaces , vol. 8, no. 18, pp. 11842–11850, May 2016.
17.4 Peak-Current-Controlled Ganged Integrated High-Frequency Buck Voltage Regulators in 22nm CMOS for Robust Cross-Tile Current Sharing (2021)

High-performance many-core processors and GPUs demand 100s of Watts of power in a single voltage/power domain on chip, operating below 1V. High-frequency and highcurrent-density fully integrated voltage regulators (FIVRs) with in-package air core inductors (ACIs) [1] or on-package magnetic inductors can deliver power with high efficiency and low distribution losses in compact footprints. Multiple FIVR tiles must be “ganged” to support the large on-chip voltage/power domains while meeting the reliability constraints of the active and passive elements, and maintaining high overall efficiency.
Novel Active Stabilization Technology in Highly Crosslinked UHMWPEs for Superior Stability (2012)

Radiation cross-linked ultrahigh molecular weight polyethylene (UHMWPE) is the bearing of choice in joint arthroplasty. The demands on the longevity of this polymer are likely to increase with the recently advancing deterioration of the performance of alternative metal-on-metal implants. Vitamin E-stabilized, cross-linked UHMWPEs are considered the next generation of improved UHMWPE bearing surfaces for improving the oxidation resistance of the polymer. It was recently discovered that in the absence of radiation-induced free radicals, lipids absorbed into UHMWPE from the synovial fluid can initiate oxidation and result in new free radical-mediated oxidation mechanisms. In the presence of radiation-induced free radicals, it is possible for the polymer to oxidize through both existing free radicals at the time of implantation and through newly formed free radicals in vivo . Thus, we showed that reducing the radiation-induced free radicals in vitamin E-stabilized UHMWPE would increase its oxidative stability and presumably lead to improved longevity. We describe mechanical annealing, low pressure annealing, and warm irradiation of irradiated vitamin E blends as novel methods to eliminate 99% of radiation-induced free radicals without sacrificing crystallinity. These are significant improvements in the processing of highly cross-linked UHMWPE for joint implants with improved longevity.
Effects on tumor immunity of anti-TGF-beta with different isoform specificities (2014)

Meeting abstracts TGF-beta has been shown to play critical roles in immune suppression that occurs in cancer patients. TGF-beta has three isoforms, TGF-beta1, 2 and 3. We and others have reported that blockade of all three isoforms enhances tumor immunosurveillance and cancer vaccine efficacy in
Self-Adaptive Middleware for Wireless Sensor Networks (2015)

Wireless Sensor Networks (WSN) are networks composed by tiny devices equipped with sensing, processing, storage, and wireless communication capabilities. WSN are used in highly dynamic environments. Applications for WSN should have an autonomous behavior to adapt their operation and achieve the best network performance. Such adaptation should preferably be performed by a middleware layer tailored to the limited resources of WSN. In this paper, we introduce a Reference Architecture (RA) of a self-adaptive middleware for WSN to contribute for the development of solutions enabling autonomic behavior in WSN. Our RA follows an autonomic computing model (MAPE-K) proposed by IBM and it was specified using a formal description language (pi-ADL) that enables the specification of dynamic architectures. ProSA-RA was used to systematize the design, representation and evaluation of our RA.
X-ray vector radiography imaging for biomedical applications (2012)

The non-invasive estimation of fracture risk in osteoporosis remains a challenge in the clinical routine and is mainly based on an assessment of bone density by dual X-ray absorption (DXA) although bone micro-architecture is known to play an important role for bone fragility. Here we report on 'X-ray vector Radiography' measurements able to provide a direct bone microstructure diagnostics on human bone samples, which we compare qualitatively and quantitatively with numerical analysis of high resolution radiographs.
Optimization of a buried microstrip antenna for simultaneous communication and sensing of soil moisture (2006)

Imbedded microstrip antennas have been previously demonstrated for use either as sensing elements or as components of a wireless communication system. This paper presents a method and dual use designs for simultaneous sensing of soil moisture and communication from the buried antenna to an external receiver. Using the genetic algorithm and the finite-difference time domain (FDTD) method, the sensing band is designed to have maximum sensitivity to the moisture of the surrounding soil, while the communication band is designed to have minimal detuning due to changes in soil moisture. Single layer and stacked microstrip antennas are shown
Analysis and optimization of BCM peak current mode control techniques for microinverters (2017)

This paper presents a detailed power loss model for a microinverter with three different zero voltage switching (ZVS) boundary conduction mode (BCM) current modulation methods. The model is used to calculate the optimum peak current boundaries for each modulation method. Based on the power loss model, a dual-zone modulation method is proposed to further improve the microinverter efficiency. The proposed modulation method provides two main benefits: the addition of one more soft switching transition and low peak current boundary. The additional soft switching transition reduces switching losses by means of zero current switching (ZCS). The lower peak current boundary reduces inductor rms current and conduction losses as well as allowing the output filter inductor to be smaller and more efficient. An improved BCM peak current control method was proposed and implemented on a microinverter prototype. The control circuit provides a highly accurate representation of the filter inductor current waveform and also provides galvanic isolation which simplifies control circuit design. The experimental results on a 400-W three-phase half-bridge microinverter validate the theoretical analysis of the power loss distribution and demonstrate that further improvement in efficiency can be achieved by using the proposed dual-zone modulation method.
Modified array manifold for signal waveform estimation in wireless communications (2002)

In wireless communication scenarios, local scatterers in the vicinity of the sources cause angular spreading. A parameterization of the spatial signature in the presence of local scattering is presented which applies to uniform linear arrays (ULAs). The spatial signature is shown to be approximately a Vandermonde vector for a ULA in environments with small angular spread. An estimator of the spatial signature is formulated based on ESPRIT. For a simple signal waveform estimator the gain may be considerable in scenarios with multiple sources, as compared with using the ideal manifold parameterized by direction of arrival (DOA).
A genome-wide association study identifies susceptibility loci for primary central nervous system lymphoma at 6p25.3 and 3p22.1: a LOC Network study (2019)

To our knowledge this is the first study providing insight into the genetic predisposition to PCNSL. Our findings represent an important step in defining the contribution of common genetic variation to the risk of developing PCNSL.
ChemInform Abstract: (POLYSTYRYLBIPYRIDINE)(TETRACARBONYL)TUNGSTEN. AN ACTIVE, REUSABLE HETEROGENEOUS CATALYST FOR METATHESIS OF INTERNAL OLEFINS (1979)

Abstract Mit EtAlCl 2 als Cokatalysator liefert der im Titel genannte Polymer‐Katalysator bei.
Electron Spin Resonance Study on Local Structure of Manganese Ions Doped in Gamma-Aluminum Oxynitride Phosphors (2012)

We have studied the local structure of manganese ion doped in gamma aluminum oxynitride phosphors (γ-AlON: Mn) using electron spin resonance (ESR) experiment. Six sharp peaks appear in ESR spectra of γ-AlON: Mn, together with five weak doublets. These structures are caused by the hyperfine interaction of 3d electrons with the 55Mn nucleus of spin I=5/2. The six peaks are attributed to the allowed transitions (ΔMI=0) between hyperfine splitting states of Ms=±1/2. The five doublets are interpreted as the forbidden transitions (ΔMI=±1) between the hyperfine splitting states. The spectral feature of γ-AlON: Mn resembles with the ESR spectrum of Mn2+ doped MgAl2O4 spinel, in which Mn2+ ions are substituted for tetrahedral Mg2+ sites. Since γ-AlON is also of the spinel structure, it is suggested that Mn2+ ions occupy tetrahedral Al3+ sites. We further chased the effect of Mg2+ co-doping on ESR spectra of Mn2+ ions in γ-AlON, in order to elucidate the luminescence enhancement in γ-AlON: Mn, Mg. It turned out that the Mg2+ co-doping increases Mn2+ ions at tetrahedral Al3+ sites.
Novel Bridged Bicyclic α-Amino Acid Esters and Key Derivatives from Quincorine and Quincoridine (1999)

Oxidation of Quincorine (QCI) and Quincoridine (QCD) has been investigated, giving bicyclic α-amino acids and dicarboxylic acid derivatives, which are epimerically and also enantiomerically pure. Acidic Cr(VI)-mediated oxidation (Jones oxidation) has been optimized with respect to reaction conduct and work up (addition of ethylenediamine).
A low complexity statistical voice activity detector with performance comparisons to ITU-T/ETSI voice activity detectors (2004)

Traditionally voice activity detection algorithms are based on any combination of general speech properties such as temporal energy variations, periodicity, and spectrum. This paper describes a statistical method for voice activity detection using a signal-to-noise ratio measure. The method employs a low-variance spectrum estimate and an adaptive threshold to make a statistical voice activity decision. An added advantage of the method is that it only requires low resources such as memory and computational time. Furthermore the method has been compared to modern standard voice activity detection algorithms with results indicating good performance in babble, white and vehicle noise.
Lithium tetrafluoroborate catalyzed highly efficient inter- and intramolecular aza-Michael addition with aromatic amines (2011)

Lithium tetrafluoroborate has been demonstrated for the first time to be an efficient catalyst in intermolecular aza-Michael addition aromatic amines to electron deficient alkenes. Suitability of the same catalyst in intramolecular aza-Michael addition leading 2-aryl-2,3-dihydroquinolin-4(1H) ones has also been described.
Thermal Stresses During Solidification Processes (1982)

Technical Briefs Thermal Stresses During Solidification Processes B. Rubinsky B. Rubinsky Department of Mechanical Engineering, University of California, Berkeley, Calif. 94720 Search for other works by this author on: This Site PubMed Google Scholar Author and Article Information B. Rubinsky Department of Mechanical Engineering, University of California, Berkeley, Calif. 94720 J. Heat Transfer. Feb 1982, 104(1): 196-199 (4 pages) https://doi.org/10.1115/1.3245051 Published Online: February 1, 1982 Article history Received: August 27, 1981 Online: October 20, 2009
A Practical Variation on the Paal—Knorr Pyrrole Synthesis. (2003)

Abstract For Abstract see ChemInform Abstract in Full Text.
A small high performance metal-mountable RFID tag antenna (2010)

In this paper a new metal-mountable RFID tag antenna with the highest read-range-to-volume ratio of all commercially available tags is described. The antenna is designed for an Alien H3 chip and represents a small printed loop antenna (37x7x3.2 mm3) with matching elements integrated into its structure. Two embodiments for monoband and dual band applications described in the paper show a read range of 5 m and 2 m respectively.
Development of New Permeability Formulation From Well Log Data Using Artificial Intelligence Approaches (2018)

Permeability is a key parameter related to any hydrocarbon reservoir characterization. Moreover, many petroleum engineering problems cannot be precisely answered without having accurate permeability value. Core analysis and well test techniques are the conventional methods to determine permeability. These methods are time-consuming and very expensive. Therefore, many researches have been introduced to identify the relationship between core permeability and well log data using artificial neural network (ANN). The objective of this research is to develop a new empirical correlation that can be used to determine the reservoir permeability of oil wells from well log data, namely, deep resistivity (RT), bulk density (RHOB), microspherical focused resistivity (RSFL), neutron porosity (NPHI), and gamma ray (GR). A self-adaptive differential evolution integrated with artificial neural network (SaDE-ANN) approach and evolutionary algorithm-based symbolic regression (EASR) techniques were used to develop the correlations based on 743 actual core permeability measurements and well log data. The obtained results showed that the developed correlations using SaDE-ANN models can be used to predict the reservoir permeability from well log data with a high accuracy (the mean square error (MSE) was 0.0638 and the correlation coefficient (CC) was 0.98). SaDE-ANN approach is more accurate than the EASR. The introduced technique and empirical correlations will assist the petroleum engineers to calculate the reservoir permeability as a function of the well log data. This is the first time to implement and apply SaDE-ANN approaches to estimate reservoir permeability from well log data (RSFL, RT, NPHI, RHOB, and GR). Therefore, it is a step forward to eliminate the required lab measurements for core permeability and discover the capabilities of optimization and artificial intelligence models as well as their application in permeability determination. Outcomes of this study could help petroleum engineers to have better understanding of reservoir performance when lab data are not available.
Improved Tumor Targeting of Anti-HER2 Nanobody Through N-Succinimidyl 4-Guanidinomethyl-3-Iodobenzoate Radiolabeling (2014)

Labeling anti-HER2 Nanobody 5F7GGC with *I-SGMIB yields a promising new conjugate for targeting HER2-expressing malignancies. Further research is needed to determine the potential utility of *I-SGMIB-5F7GGC labeled with (124)I, (123)I, and (131)I for PET and SPECT imaging and for targeted radiotherapy, respectively.
Development of microneedle fabricated by synchrotron radiation lithography for bio-medical applications (2006)

In this thesis, development of microneedles fabricated by synchrotron radiation deep x-ray lithography with PCT (plane-pattern to cross-section transfer) technique is summarized.In Chapter 1, a review of previous reports on the fabrication of microneedles for a painless use based on the nervous system of human skin and the future developing trend are presented.The introduction to the research carried out in this thesis is included in this chapter.The design concepts of three configurations of the PMMA microneedles; single-tip, quadruplets, and hollow types are addressed in Chapter 2. Fabrication process of the three types of
Reaction of C3 and C4 Ketoses with Alkenals and Alkenones in Water. (2005)

Abstract For Abstract see ChemInform Abstract in Full Text.
High performance and high reliability AlGaN/GaN HEMTs (2009)

Abstract In this paper, a current status and future technologies of high‐power GaN HEMTs was described. First, commercialization roadmap was shown with output power and efficiency status. Power electronics benchmark was also introduced. Reliability improvement technologies were addressed with recent issues such as drift phenomena. Then, future requirements for expanding GaN electronics market were shown with some recent device developments. Novel E‐mode recessed GaN‐HEMT has been developed using the triple cap layer structure. High‐k insulated gate HEMTs using Ta 2 O 5 were also developed. Finally, we described the next generation GaN HEMTs for millimeter‐wave applications. (© 2009 WILEY‐VCH Verlag GmbH &amp; Co. KGaA, Weinheim)
Dietary Orotic Acid Increases 1,2-Diacylglycerol Level and Lowers Superoxide Dismutase Activity in Rat Liver. (2002)

The effects of the dietary addition of orotic acid were studied on lipid levels in the rat liver and serum, 1,2-diacylglycerol levels in some organs, activities of antioxidant liver enzymes (superoxide dismutase, glutathione peroxidase, and catalase), and serum enzyme activities (ornithine carbamoyltransferase and alanine aminotransferase), after feeding for 0, 7, 14, and 21 d, respectively. Rats on the orotic acid diet accumulated more liver total lipids, triacylglycerol, and phospholipids than those on the basal diet. However, the levels of serum triacylglycerol and phospholipids of those rats were markedly decreased after 7, 14, and 21 d on the diet. Dietary orotic acid increased the 1,2-diacylglycerol levels in the liver of rats fed for 14 or 21 d, but not in the ileum of small intestine, vastus lateralis muscle, and heart. The addition of orotic acid lowered the activities of liver total and Cu,Zn-superoxide dismutase after feeding for 7, 14, and 21 d. The serum ornithine carbamoyltransferase activity after 14, and 21 d and that of serum alanine aminotransferase after 7, 14, and 21 d were increased. These data suggested that the increase in the activities of serum enzymes tested may result from liver damage induced by the marked accumulation of liver lipids and possibly from the increased superoxide anion because of the decreased activities of hepatic superoxide dismutase by orotic acid feeding.