gebhart/patrepeval huggingface dataset:
Structural Properties and Functional Electrochemistry of Spinel Type Iron Oxide Structures (2017)

In recent years, binary transition metal oxides such as magnetite, Fe 3 O 4 , zinc ferrite, ZnFe 2 O 4 , magnesium ferrite, MgFe 2 O 4 and copper ferrite, CuFe­ 2 O 4 , have gained significant attention as prospective electrodes for lithium based batteries. These materials hold interest due to the low cost iron center, their low environmental impact, and in particular for their high theoretical capacities. Through a combined insertion and conversion mechanism theoretical capacities of up to 1000 mAh/g would be possible, thus, storing more energy than typical insertion materials. Interestingly, along with the commonality of the iron metal center, the materials often have spinel or inverse spinel structures. The densely packed structure of these spinel materials has led to the demonstration that smaller crystallite size samples can provide higher practical energy density than larger size samples. This presentation will provide insight into the role of crystallite size as well as the lithiation/delithiation mechanisms of this class of bimetallic iron oxide structures.
Black Phosphorus Mid-Infrared Photodetectors with High Gain (2016)

Recently, black phosphorus (BP) has joined the two-dimensional material family as a promising candidate for photonic applications due to its moderate bandgap, high carrier mobility, and compatibility with a diverse range of substrates. Photodetectors are probably the most explored BP photonic devices, however, their unique potential compared with other layered materials in the mid-infrared wavelength range has not been revealed. Here, we demonstrate BP mid-infrared detectors at 3.39 μm with high internal gain, resulting in an external responsivity of 82 A/W. Noise measurements show that such BP photodetectors are capable of sensing mid-infrared light in the picowatt range. Moreover, the high photoresponse remains effective at kilohertz modulation frequencies, because of the fast carrier dynamics arising from BP's moderate bandgap. The high photoresponse at mid-infrared wavelengths and the large dynamic bandwidth, together with its unique polarization dependent response induced by low crystalline symmetry, can be coalesced to promise photonic applications such as chip-scale mid-infrared sensing and imaging at low light levels.
On the additive bases problem in finite fields (2016)

We prove that if $G$ is an Abelian group and $A_1,\ldots,A_k \subseteq G$ satisfy $m A_i=G$ (the $m$-fold sumset), then $A_1+\ldots+A_k=G$ provided that $k \ge c_m \log n$. This generalizes a result of Alon, Linial, and Meshulam [Additive bases of vector spaces over prime fields. J. Combin. Theory Ser. A, 57(2):203--210, 1991] regarding the so called additive bases.
Local rollback for fault-tolerance in parallel computing systems (2023)

A control logic device performs a local rollback in a parallel super computing system. The super computing system includes at least one cache memory device. The control logic device determines a local rollback interval. The control logic device runs at least one instruction in the local rollback interval. The control logic device evaluates whether an unrecoverable condition occurs while running the at least one instruction during the local rollback interval. The control logic device checks whether an error occurs during the local rollback. The control logic device restarts the local rollback interval if the error occurs and the unrecoverable condition does not occur during the local rollback interval.
Enhanced Stabilization and Easy Phase Transfer of CsPbBr3 Perovskite Quantum Dots Promoted by High-Affinity Polyzwitterionic Ligands (2020)

The successful growth of colloidal lead halide perovskite quantum dots (PQDs) has generated tremendous interest in the community, due to the unique properties and the promise PQDs offer for use in applications involving light-emitting devices and solar cell technology. However, tangible progress in probing their fundamental properties and/or their integration into optoelectronic devices has been hampered by issues of colloidal and photophysical instability. Here, we introduce a promising surface coating strategy relying on a polyzwitterion polymer, where high-affinity binding onto the QDs is driven by multicoordinating electrostatic interactions with the ion-rich surfaces of CsPbBr<sub>3</sub> PQDs. The polymer ligands were synthesized by installing a stoichiometric mixture of amine-modified sulfobetaine anchors and solubilizing motifs on poly(isobutylene-<i>alt</i>-maleic anhydride), PIMA, via nucleophilic addition reaction. We find that this coating approach imparts enhanced colloidal and photophysical stability to the nanocrystals over a broad range of solvent conditions and in powder form. This approach also allows easy phase transfer of the PQDs from nonpolar media to an array of solutions with varying polarities and properties. Additionally, the stabilization strategy preserves the photophysical and structural characteristics of the nanocrystals over a period extending to 1.5 years under certain conditions.
Pulsed IEC neutron generator (2002)

Inertial electrostatic confinement (IEC) fusion confines high energy ions in a spherical potential well where convergence in a central "core" region yields a high fusion rate. When operated in steady-state, the measured D-D neutron yield for a 30 cm diameter (7.5 cm diameter grid) IEC varies linearly with current I, giving /spl sim/10/sup 6/ neutrons/sec at 15 mA and 70 kV. Theoretically the yield should scale as a power law in I at higher currents, being proportional to I/sup 2/ in a pure beam-beam fusion regime. This favorable scaling, plus the need for short neutron bursts for some applications, motivates the development of a pulsed IEC. The present pulsed circuit provides amp-level pulses with tens of ms duration, simulating a quasi-steady state operation while avoiding arcing and controlling voltage excursions. Results demonstrating that the yield /spl sim/I/sup 2/ for 15-150 mA are presented, along with an approximate perveance criterion for initial double potential well formation.
Studies on zinc toxicity in the larvae of the rice moth, Corcyra cephalonica St (1958)

Research Article| July 01 1958 Studies on zinc toxicity in the larvae of the rice moth, Corcyra cephalonica St K. Sivarama Sastry; K. Sivarama Sastry 1University Biochemical Laboratory, Madras-25, India Search for other works by this author on: This Site PubMed Google Scholar R. Radhakrishna Murty; R. Radhakrishna Murty 1University Biochemical Laboratory, Madras-25, India Search for other works by this author on: This Site PubMed Google Scholar P. S. Sarma P. S. Sarma 1University Biochemical Laboratory, Madras-25, India Search for other works by this author on: This Site PubMed Google Scholar Author and article information Publisher: Portland Press Ltd © 1958 CAMBRIDGE UNIVERSITY PRESS1958 Biochem J (1958) 69 (3): 425–428. https://doi.org/10.1042/bj0690425 Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Facebook Twitter LinkedIn Email Cite Icon Cite Get Permissions Citation K. Sivarama Sastry, R. Radhakrishna Murty, P. S. Sarma; Studies on zinc toxicity in the larvae of the rice moth, Corcyra cephalonica St. Biochem J 1 July 1958; 69 (3): 425–428. doi: https://doi.org/10.1042/bj0690425 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentAll JournalsBiochemical Journal Search Advanced Search © 1958 CAMBRIDGE UNIVERSITY PRESS1958 Article PDF first page preview Close Modal You do not currently have access to this content.
Revealing the Effect of MnO2, Activated Carbon and MnO2/Activated Carbon on Chitosan Polymer Host Fabricated Co NPs: Antibacterial Performance and Degradation of Organic Compounds (2022)

MnO<sub>2</sub> and MnO<sub>2</sub> blended with 1 and 2 weight percent of activated carbon (AC), MnO<sub>2</sub>/AC1 and MnO<sub>2</sub>/AC2 were synthesized through the sol-gel method. The pure chitosan (CS) films were cast in the form of films. Similarly, 5 weight% of each MnO<sub>2</sub>, AC, MnO<sub>2</sub>/AC1 and MnO<sub>2</sub>/AC2 was intermingled with the CS to produce different films, such as CS-AC, CS-MnO<sub>2</sub>, CS-MnO<sub>2</sub>/AC1 and CS-MnO<sub>2</sub>/AC2. Zero-valent Co NPs were then supported on these films through the chemical reduction method and expressed as CS@Co, CS-AC@Co, CS-MnO<sub>2</sub>@Co, CS-MnO<sub>2</sub>/AC1@Co and CS-MnO<sub>2</sub>/AC2@Co NPs. All the catalysts were characterized by field emission scanning electron microscopy (FESEM), energy-dispersive spectroscopy (EDS) and X-ray diffraction (XRD) techniques. The synthesized catalysts were used as a dip catalyst against the hydrogenation of 4-nitrophenol (4NP), and for the degradation of methyl orange (MO) and Congo red (CR) dyes. The <i>k</i><sub>app</sub> and R<sup>2</sup> values were deduced from pseudo-first-order kinetics for 4NP and MO and zero-order kinetics for CR dye. The <i>k</i><sub>app</sub> values of CS-AC@Co and CS-MnO<sub>2</sub>/AC1@Co NPs for 4NP hydrogenation were higher than those for any other member of the series, at 1.14 × 10<sup>-1</sup> and 1.56 × 10<sup>-1</sup> min<sup>-1</sup> respectively. Similarly, the rate of CR degradation was highest with CS-AC@Co. The R<sup>2</sup> values for 4NP, MO and CR dyes were above 0.9, which indicated that the application of pseudo-first- and zero-order models were appropriate for this study. Furthermore, the antibacterial activity of all the catalysts was evaluated against <i>Pseudomonas aeruginosa</i> and <i>Escherichia coli</i>. The CS-AC@Co NPs exhibited the highest zone of inhibition compared to other catalysts against <i>P. aeruginosa</i>, while all the catalysts were inactive against <i>E. coli</i>. This study reveals that the catalyst can be used for the degradation of other pollutants and for microbial inhibition.
Synthetic Tuning of Domain Stoichiometry in Nanobody–Enzyme Megamolecules (2020)

This paper presents a method to synthetically tune atomically precise megamolecule nanobody-enzyme conjugates for prodrug cancer therapy. Previous efforts to create heterobifunctional protein conjugates suffered from heterogeneity in domain stoichiometry, which in part led to the failure of antibody-enzyme conjugates in clinical trials. We used the megamolecule approach to synthesize anti-HER2 nanobody-cytosine deaminase conjugates with tunable numbers of nanobody and enzyme domains in a single, covalent molecule. Linking two nanobody domains to one enzyme domain improved avidity to a human cancer cell line by 4-fold but did not increase cytotoxicity significantly due to lowered enzyme activity. In contrast, a megamolecule composed of one nanobody and two enzyme domains resulted in an 8-fold improvement in the catalytic efficiency and increased the cytotoxic effect by over 5-fold in spheroid culture, indicating that the multimeric structure allowed for an increase in local drug activation. Our work demonstrates that the megamolecule strategy can be used to study structure-function relationships of protein conjugate therapeutics with synthetic control of protein domain stoichiometry.
Composite media mixing Bragg and local resonances for highly attenuating and broad bandgaps (2013)

In this article, we investigate composite media which present both a local resonance and a periodic structure. We numerically and experimentally consider the case of a very academic and simplified system that is a quasi-one dimensional split ring resonator medium. We modify its periodicity to shift the position of the Bragg bandgap relative to the local resonance one. We observe that for a well-chosen lattice constant, the local resonance frequency matches the Bragg frequency thus opening a single bandgap which is at the same time very wide and strongly attenuating. We explain this interesting phenomenon by the dispersive nature of the unit cell of the medium, using an analogy with the concept of white light cavities. Our results provide new ways to design wide and efficient bandgap materials.
Exclusive and semi-exclusive $π^+π^-$ production in proton-proton collisions at sqrt(s) = 7 TeV (2017)

A measurement is presented of the exclusive and semi-exclusive production of charged pion pairs in proton-proton collisions, pp to p(p*) + $π^+π^-$ + p(p*) here the $π^+π^-$ pair is emitted at central rapidities, and the scattered protons stay intact (p) or diffractively dissociate (p*) without detection. The measurement is performed with the CMS detector at the LHC, using a data sample corresponding to an integrated luminosity of 450 inverse microbarns collected at a center-of-mass energy of 7 TeV. The dipion cross section, measured for single-pion transverse momentum pt &gt;0.2 GeV and rapidity abs(y)&lt;2, is 26.5 +/- 0.3 (stat) +/- 5.0 (syst) +/- 1.1 (lumi) microbarns. The differential cross sections measured as a function of the invariant mass, pt, and y of the pion pair, and as a function of single-pion pt, are compared to phenomenological predictions.
Transport properties of disordered porous media from the microstructure. Progress report, March 1, 1991--February 28, 1992 (1991)

Progress has been made in five general areas: (1) the development of cross-property relations, i.e., relationships between one effective property and a different effective property; (2) the development of a systematic means to represent and calculate statistical correlation functions that arise in rigorous property relations for heterogeneous media, using statistical-mechanical methods; (3) the derivation and calculation of property relations which depend upon this microstructural information; (4) sterically hindered fragmentation in reactive solids using percolation theory and simulations; and (5) the use of Brownian-motion simulation techniques to ``exactly`` predict the effective properties of disordered media. We embarked on a new area of research, namely, the study of passive advection of tracer particles in random velocity fields.
Influences of Mn on Recrystallization Behavior and Annealing Texture Formation in Ultralow-carbon and Low-carbon Steels. (1994)

The influences of Mnon the recrystallization behavior and the formation of recrystallization texture in Ti-added ultralow-C steels were investigated and comparedwith that of low-C Al-killed steels. In Ti-added ultralow-C steels, Mn does not influence the recovery, the nucleation and growth rate of recrystallization, or the recrystallization texture. On the other hand, in low-C Al-killed steel, Mn inhibits the recovery and retards the growth rate of recrystallized grains. Consequently, the development of ND// 11 > is impaired, and the intensity of ND// 1 0> increases after recrystallization. The differences in recrystallization behavior and annealing texture formation betweenthe two kinds of steel were discuss~d from the viewpoint of the roles of precipitates and solute Mn. It was determined that Mn-Ccomplex is the main reason for these d ifferences.
Secure device control scheme with blockchain in a smart home (2022)

The Internet of Things (IoT) and blockchain technologies characterizing the era of the fourth industrial revolution have enabled smart home networks to support their various systems and services. In a blockchain-based smart-home network environment, all connected IoT devices must be controlled safely and efficiently. Nevertheless, existing block-chain-based smart-home IoT systems pose a delay issue due to the necessary block generation time. In addition, IoT devices installed in smart homes should be able to prevent forgery attacks such as spoofing because they are often directly associated with personal information. In this study, we proposed an enhanced method to control smart home devices safely and efficiently by applying the zero-knowledge proof combined with a blockchain-based IoT system to protect the public keys of home network devices and the communication among them. The proposed model was approximately 10 s faster than the block generation-based model when it communicated three times in rinkeby, which is one of the test networks of Ethereum.
Experimental Platform for Measuring the Impacts of Different Charging Strategies on Battery Degradation (2019)

There is increasing interest in the integration of battery energy storage systems alongside rooftop solar photovoltaic (PV) generation. While the cost of batteries continues to fall, they still remain expensive, so it is necessary to maximise the value they provide in order to justify the investment. Batteries are sensitive to the operating conditions that they are exposed to, and this significantly affects the batteries' usable lifetime. A charging strategy which aims to maximise the returned value of such a system must therefore take into account the potential impact of operation on battery degradation. In this work, we describe the design and operation of a small-scale experimental platform to test the impacts of several different battery charging algorithms side-by-side. By exposing multiple solar-plus-storage systems to the same operating conditions, it is possible to examine more closely the impacts that different factors have on battery lifetime. This in turn allows for a more accurate evaluation of the return on investment of solar PV-battery systems under different charging strategies and the development of algorithms that optimise their use.
Supplementary Table 5 from Comprehensive DNA Methylation Analysis Indicates That Pancreatic Intraepithelial Neoplasia Lesions Are Acinar-Derived and Epigenetically Primed for Carcinogenesis (2023)

&lt;p&gt;Pairwise comparisons of promoter jsDMRs&lt;/p&gt;
Multiphenotypic Whole-Cell Sensor for Viability Screening (2005)

Here, we describe the fabrication of whole mammalian cell biosensors for the optical monitoring of cell viability. Three phenotypes were examined for their response to the addition of two model chemotoxins: sodium hypochlorite and sodium azide, and one model biotoxin, concanavalin A. Two sensing platforms containing cells, hydrogel microspheres, or hydrogel arrays, were also explored. Step changes in viability in response to small doses of sodium hypochlorite were seen nearly instantaneously in all cell lines, in solution, microspheres, and microarrays. Linear detection of sodium azide by entrapped hepatocytes was 0-10 microM, whereas the linear detection range for macrophages and endothelial cells was 0-75 microM. Macrophages and hepatocytes have a greater sensitivity, as indicated by a 40% change in fluorescence over the linear range, whereas endothelial cells show only a 15% change in fluorescence over the linear range. Using photoreaction injection molding, we were also able to generate a multiphenotype sensor that enables the measurement of the toxic effect of 100 microg/mL concanavalin A on macrophages and hepatocytes, but not on endothelial cells.
Torsional strength of computer-aided design/computer-aided manufacturing–fabricated esthetic orthodontic brackets (2016)

Zirconia had the highest torsional strength among the tested esthetic brackets. Resistance of MZ100 and Lava Ultimate composite resin brackets to archwire torsion was comparable to commercially available alumina ceramic brackets.
A New Thermoelastic Model for Analysis of Shape Memory Alloy Hybrid Composites (2000)

A constitutive model and a finite element formulation are developed for predicting the thermomechanical response of SMA hybrid composite structures subjected to combined thermal and mechanical loads. The constitutive model is valid for constrained, restrained, or free recovery behavior with appropriate measurements of basic SMA material properties. The model captures the material nonlinearity of the SMA with temperature and more accurately captures the mechanics of composites with embedded SMA actuators as compared to other recently developed approaches. The constitutive and finite element models are amenable to commercial code implementation. The fundamental thermoelastic behavior of such structures is described in physical terms and related to the governing equations. It is shown that alloy selection is imperative for achieving the desired performance with respect to the application environment. It is also shown that fundamental efforts to strategically place actuators can produce dramatic performance improvements. Numerical results are shown for glass-epoxy beam specimens with embedded Nitinol actuators. Control of critical buckling temperature, thermal post-buckling deflection, and random response are demonstrated.
64 GBd DP-Bipolar-8ASK Transmission over 120 km SSMF Employing a\n Monolithically Integrated Driver and MZM in 0.25-um SiGe BiCMOS Technology (2020)

We demonstrate 64 GBd signal generation up to bipolar-8-ASK utilizing a\nsingle MZM, monolithically integrated with segmented drivers in SiGe. Using\npolarization multiplexing, 300-Gb/s net data rate transmission over 120 km SSMF\nis shown.\n
Application of frameless stereotaxy to pedicle screw fixation of the spine (1995)

Interactive frameless stereotaxy has been successfully applied to intracranial surgery. It has contributed to the improved localization of deep-seated brain lesions and has demonstrated a potential for reducing both operative time and morbidity. However, it has not been as effectively applied to spinal surgery. The authors describe the application of frameless stereotactic techniques to spinal surgery, specifically pedicle screw fixation of the lumbosacral spine. Preoperative axial computerized tomography (CT) images of the appropriate spinal segments are obtained and loaded onto a high-speed graphics supercomputer workstation. Intraoperatively, these images can be linked to the appropriate spinal anatomy by a sonic localization digitizer device that is interfaced with the computer workstation. This permits the surgeon to place a pointing device (sonic wand) on any exposed spinal bone landmark in the operative field and obtain multiplanar reconstructed CT images projected in near-real time on the workstation screen. The images can be manipulated to assist the surgeon in determining the proper entry point for a pedicle screw as well as defining the appropriate trajectory in the axial and sagittal planes. It can also define the correct screw length and diameter for each pedicle to be instrumented. The authors applied this device to the insertion of 150 screws into the lumbosacral spines of 30 patients. One hundred forty-nine screws were assessed to be satisfactorily placed by postoperative CT and plain film radiography. In this report the authors discuss their use of this device in the clinical setting and review their preliminary results of frameless stereotaxy applied to spinal surgery. On the basis of their findings, the authors conclude that frameless stereotactic technology can be successfully applied to spinal surgery.
Optimizing high-flow nasal cannula flow settings in adult hypoxemic patients based on peak inspiratory flow during tidal breathing (2021)

ClinicalTrials.gov (NCT03738345). Registered on November 13th, 2018. https://clinicaltrials.gov/ct2/show/NCT03738345?term=NCT03738345&draw=2&rank=1.