gebhart/patrepeval huggingface dataset:
Luminescence of <i>ortho</i>‐Metalated Iridium Complexes Encapsulated in Zeolite Supercages by the Ship‐in‐a‐Bottle Method (2012)

Abstract ortho ‐Metalated iridium(III) complexes were synthesized in the supercages of faujasite‐type zeolites by a microwave‐assisted ship‐in‐a‐bottle procedure. Ir III was inserted by means of ion exchange followed by the addition of 2‐(2,4‐difluorophenyl)pyridine (dfppyH) or 2‐phenylpyridine (ppyH), demonstrating the first example of iridium–carbon sigma bond formation in zeolite cages. These zeolite powder samples containing Ir III complexes showed relatively high luminescence quantum yields [14.34 % for Ir(dfppy) 3 and 4.76 % for Ir(ppy) 3 ]. 2‐Phenylquinoline (phqH) afforded the corresponding ortho ‐metalated complex that formed on the outer surface of the zeolite particles, because its large size prevented it from entering the supercages. The color of the emission from the zeolite powder samples could be tuned in a range from blue to green by the successive reaction of Ir III ions in the zeolite with the two ligands dfppyH and ppyH, leading to the formation of two individual types of complexes, Ir(dfppy) 3 and Ir(ppy) 3 , in the supercages of the zeolite, which was confirmed by the characteristic emission spectrum of each complex.
Time-dependent phase lag of biofunctionalized magnetic nanoparticles conjugated with biotargets studied with alternating current magnetic susceptometor for liquid phase immunoassays (2013)

In this work, the time-dependent phase lag θ of biofunctionalized magnetic nanoparticles (BMNs) conjugated with biotargets is studied with a home-made alternating current (ac) susceptometor for liquid phase immunoassays. The sensing unit of the ac susceptometor composed of excitation, pick-up, and compensation coils are balanced to 0.03 ppm. The BMNs are anti-goat C-reactive protein coated onto dextran-coated magnetic nanoparticles composed of Fe3O4, labeled as Fe3O4-antiCRP. The bio-targets are human CRP. As the human CRP is conjugated with reagents Fe3O4-antiCRP, the magnetic clusters of Fe3O4-antiCRP-CRP are formulated. Due to the clustering effect, the Brownian relaxation of BMNs will be depressed, which in turn enhances the effective relaxation time. By monitoring the dynamic phase lag, we demonstrate a sensitive platform of assaying human CRP. The detection platform is robust, easy to use and can be applied for assaying a wide variety of biotargets including viruses, proteins, tumor markers, chemicals, etc.
Role of Carbon in the Strengthening of Silicon Crystals (1984)

Effect of substitutionally dissolved carbon on the mechanical strength of silicon crystals is investigated as a function of the concentration of oxygen dissolved in the crystals. It is concluded that carbon atoms increase the yield strength of silicon crystals when the crystals are initially dislocated and that these atoms coexist with oxygen atoms of concentrations higher than about 5×10 17 atoms/cm 3 .
Applications of soft X-ray lasers for plasma diagnostics (2002)

Collisionally pumped X-ray lasers have been demonstrated to have sufficient energy, and narrow bandwidth to make them one of the brightest laboratory X-ray sources available. Furthermore, with their relatively small source size and narrow divergence they have enough spatial and temporal coherence to be applied in interferometric applications. A program to develop plasma diagnostics based on the X-ray laser probing has been underway at Lawrence Livermore National Laboratory (LLNL) for several years.
One-iteration Parameter Extraction for Length/width-dependent Threshold Voltage and Unified Drain Current Model (2005)

This paper presents the calibration methodology for our unified length/width-dependent MOSFET drain-current (Ids) model with length/width-dependent threshold-voltage (Vt) model in the entire geometry/bias range based on a 0.11-µm CMOS technology. The model has been formulated with built-in physical effects to account for electrical characteristics of fabricated short-channel/narrow-width devices while maintaining Gummel symmetry. Through a one-iteration parameter extraction using minimum measurement data, the model can predict accurately and physically the experimental I−V data, including output conductance, transconductance, and their derivatives.
Spectrophotometric Determination of Nicotine (1950)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSpectrophotometric Determination of NicotineC. O. Willits, M. L. Swain, J. A. Connelly, and B. A. BriceCite this: Anal. Chem. 1950, 22, 3, 430–433Publication Date (Print):March 17, 1950Publication History Published online1 May 2002Published inissue 17 March 1950https://pubs.acs.org/doi/10.1021/ac60039a013https://doi.org/10.1021/ac60039a013research-articleACS PublicationsRequest reuse permissionsArticle Views890Altmetric-Citations81LEARN 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
A modular and distributed supervisory system for a semi-autonomous personal robot for household applications (2002)

The development of personal robots dedicated to service tasks, such as the assistance to the disabled and the elderly at home and/or in residential institutions, is certainly one of the most attractive challenges currently being faced by the robotics community world-wide. This paper aims at providing a specific contribution to one of the most interesting technical problems related to the development of such systems, i.e. high-level control and supervision during task execution, and describes an innovative approach for a semi-autonomous personal robot for household applications, based on the concepts of 'levels of autonomy' and 'system distribution'. It also describes the implementation of such an approach for the supervisor of the MOVAID robotic system, for residential care of disabled and elderly people. In the paper, the proposed approach is presented. Its current implementation for the MOVAID prototype, based on an object-oriented behavioural scheme, is also illustrated with preliminary indications on the experimental results and possible future developments.
Error concealment for motion JPEG2000 (2005)

In this paper, we present methods that can be used to conceal errors in corrupt motion JPEG2000 codestreams. Motion JPEG2000 is an intra-frame compression technique and the proposed concealment methods utilize motion compensation to conceal errors. The simulation results indicate that the proposed methods can yield over 10 dB improvement in PSNR.
Active and reactive power control schemes for distributed generation systems under voltage dips (2009)

During voltage dips continuous power delivery from distributed generation systems to the grid is desirable for the purpose of grid support. In order to facilitate the control of distributed generation systems adapted to the expected change of grid requirements, generalized power control schemes based on symmetric-sequence components are proposed in this paper for inverter-based distributed generation, aiming at manipulating the delivered instantaneous power under voltage dips. It is shown that active power and reactive power can be independently controlled with two individually adaptable parameters. By changing these parameters, the relative amplitudes of oscillating power can be smoothly regulated, as well as the peak values of three-phase grid currents. As a result, the power control of grid-side inverters becomes quite flexible. Furthermore, two strategies for simultaneous active and reactive power control are proposed that preserves adaptive controllability. Finally, the proposed schemes are verified experimentally.
(Invited) MgO Tunnel Barriers in Magnetic Nanostructures and Devices (2010)

In recent years, there has been a great deal of success in the development of MgO based tunnel barriers for use in magnetic devices, such as nanoscale magnetic random access memory (MRAM) elements and magnetic field sensors. Much of the focus has been on creating tunnel barriers that have ever-increasing tunneling magnetoresistance values, which today approach as much as 500%, and lower resistance-area products, which are as low as a few Ohm-micrometers squared. These improvements afford the potential for future scaling of MRAM devices into the deep nanometer regime and solid-state CMOS compatible sensors with much improved sensitivity. This paper gives an overview of the fundamental device concepts of these MgO-based structures. Contribution of NIST, not subject to copyright
Preparation of active CdS/RuO x particles for the photogeneration of H2 (1985)

Preparation of RuOx from RuO4, as well as from in situ generated ‘ruthenium hydroxide’ or ruthenate ions, followed by calcinations at 400 °C, reproducibly affords active catalysts generally without noxious oxidation of the CdS support, whereas impregnation of RuCl3·3H2O and subsequent annealing yield poor materials; in the latter procedure the Cds is irretrievably damaged.
A new approach to measurement of effective residual ink concentration of deinked papers (2007)

The measurement of effective residual ink concentration (ERIC) in recycled papers is prone to errors. TAPPI Provisional Method T 567 pm-97 is based on application of the Kubelka Munk (KM) theory to diffuse reflection from papers measured once with the black backing and again with a thick backing of the same papers. At high opacities the two results become indistinguishable, leading to an undetermined value for ERIC when the full KM theory is applied. This is handled by use of an approximate value for the KM scattering coefficient to remove the ambiguity. However, the approximate value may be in error by 10%. An alternate approach avoids the uncertainty inherent in the approximation by applying the KM theory to the measurement of diffuse reflection and transmission in single sheets. The measurement is valid at any opacity for which the percentage transmission through the sheet is accurately determined in the near-infrared spectral region. Coefficients of variation (COV) are as low as or lower than those from the standard ERIC measurement throughout the range of interest. They decrease with increasing opacity to a low of 8 % for a sheet having 1000 ppm ERIC, compared to a COV of 16 % for the standard measurement based on an average value of scattering coefficient. The proposed method promises to be a superior way to monitor deinking in recycled papers.
Simple cobalamin speciation using TLC-DLTV ICP MS (2014)

A novel and simple coupling of TLC with ICP MS based on DLTV adequate for sensitive elemental speciation of mixtures was demonstrated. LOD ~2 pg were achieved for each analyzed specie, as was demonstrated on the model system of four CAs. A five-order magnitude increase in sensitivity was obtained compared to the optical detection.
Zircon U–Pb geochronology and geochemistry of Late Cretaceous–early Eocene granodiorites in the southern Gangdese batholith of Tibet: petrogenesis and implications for geodynamics and Cu ± Au ± Mo mineralization (2015)

Cu ± Au ± Mo mineralization is found in multiple intrusive suites in the Gangdese belt of southern Tibet (GBST). However, the petrogenesis of these ore-bearing intrusive rocks remains controversial. Here, we report on mineralization-related Late Cretaceous-early Eocene intrusive rocks in the Chikang–Jirong area, southern Gangdese. Zircon U–Pb analyses indicate that the mainly granodioritic Chikang and Jirong plutons were generated in the Late Cretaceous (ca. 92 Ma) and early Eocene (ca. 53 Ma), respectively. They are high-K calc-alkaline suites with high SiO2 (64.8–68.3 wt.%) and Al2O3 (15.1–15.7 wt.%) contents. Chikang granodiorites are characterized by high Sr (835–957 ppm), Sr/Y (118–140), Mg# (58–60), Cr (21.8–36.6 ppm), and Ni (14.3–22.9 ppm), and low Y (6.0–8.1 ppm), Yb (0.54–0.68 ppm) values with negligible Eu anomalies, which are similar to those of typical slab-derived adakites. The Jirong granodiorites have high SiO2 (64.8–65.3 wt.%) and Na2O + K2O (7.19–7.59 wt.%), and low CaO (2.45–3.69 wt.%) contents, Mg# (47–53) and Sr/Y (14–16) values, along with negative Eu and Ba anomalies. Both Chikang and Jirong granodiorites have similar εHf(t) (7.6–13.1) values. The Chikang granodiorites were most probably produced by partial melting of subducted Neo-Tethyan oceanic crust, and the Jirong granodiorites were possibly generated by partial melting of Gangdese juvenile basaltic crust. In combination with the two peak ages (100–80 and 65–41 Ma) of Gangdese magmatism, we suggest that upwelling asthenosphere, triggered by the rollback and subsequent break-off of subducted Neo-Tethyan oceanic lithosphere, provided the heat for partial melting of subducted slab and arc juvenile crust. Taking into account the contemporaneous occurrence of Gangdese magmatism and Cu ± Au ± Mo mineralization, we conclude that the Late Cretaceous–early Eocene magmatic rocks in the GBST may have a significant potential for Cu ± Au ± Mo mineralization.
Quantitative research of evolved gas rate by TGA-FTIR (2009)

Quantitative determination of the evolved gas rate in the combined theromogravimetry(TGA) and Fourier transform infrared(FTIR) analysis is important when investigating decomposition processes or gas-solid reactions.A quantitative calibration method was developed to obtain the evolved nonhomonuclear gas rate from the temporal FTIR Absorbance intensity signal by relating with the solid sample mass loss rate in TGA measurement.Based on experimental studies of decomposition of calcium carbonate in TGA-FTIR applications,the influence of several experimental parameters such as the carrier gas flow rate and sample mass on the delay and shape deviation of FTIR signal was discussed.The results showed that the time of transport delay,diffusion and back-mixing was dependent on the carrier flow rate,but independent on the sample mass.
Modeling Virus Inactivation on Salad Crops Using Microbial Count Data (2001)

Microbial counts of the persistent Bacteroides fragilis bacteriophage B40-8 from a virus decay experiment conducted under glasshouse conditions were used to model the decay of viruses on wastewater-irrigated lettuce and carrot crops. The modeling approach applied gave specific consideration to the discrete nature of microbial count data. The experimental counts were best fit by a negative binomial distribution indicating highly dispersed distribution of viruses on lettuce and carrot crops following irrigation with wastewater. In addition, there was evidence for biphasic inactivation of viruses, signifying the presence of a persistent subpopulation of viruses that decayed slowly, resulting in virus accumulation on the crop surface over subsequent irrigations. Maximum likelihood estimates of initial and persistent subpopulation inactivation rates were 2.48 day(-1) and 0.51 day(-1) for lettuces and 0.84 day(-1) and 0.046 day(-1) for carrots. Maximum likelihood estimates of the persistent virus subpopulation size were 0.12% and 2% for lettuce and carrots, respectively.
Bus encoding for total power reduction using a leakage-aware buffer configuration (2005)

Power consumption, particularly runtime leakage, in long on-chip buses has grown to be an unacceptable portion of the total power budget due to heavy buffer insertion used to combat RC delays. In this paper, we propose a new bus encoding algorithm and circuit scheme for on-chip buses that eliminates capacitive crosstalk while simultaneously reducing total power. We utilize a buffer design approach with a selective use of high-threshold voltage transistors and couple this buffer design with a novel bus encoding scheme. The proposed encoding scheme significantly reduces total power by 26% and runtime leakage power by 42% while also eliminating capacitive crosstalk. In addition, the proposed encoding is specifically optimized to reduce the complexity of the encoding logic, allowing for a significant reduction in overhead which has not been considered in previous bus encoding work.
T cell‐mediated immunity to oncornavirus‐induced tumors IV. Preliminary evidence for a specific suppression of anti‐Moloney cell‐mediated immune response by autoimmune T cells (1981)

Previous reports have demonstrated that adult C57BL/6 mice infected with murine sarcoma virus (MSV) develop a strong cell-mediated immune response against Friend, Moloney, Rauscher virus-induced type-specific (FMR) antigens and reject their tumors. To demonstrate a possible role for auto-anti-MSV T blasts, syngeneic C57BL/6 mice were immunized with highly enriched anti-FMR cytolytic T cells. One of 3 pools of these autoimmune T cells prepared from 12 surviving immunized mice (a) inhibited specifically the in vitro anti-MSV cytolysis generation and (b) enhanced drastically the MSV tumor growth in vivo. The possibility for such an immunization procedure to induce anti-idiotype T cells, the repeatability of this effect and the relationship of the suppressor cells with antigen-specific suppressor cells and other components of the anti-MSV immune response are discussed.
Apollon-10P: Status and implementation (2012)

The objective of the "Institut de Lumie`re Extreme" consists in providing early in 2014 to the international scientific community an unique laser based facility delivering 150 J, 15 fs pulses at 1 shot per minute repetition rate allowing to investigate an unexplored domain of laser-matter interaction at 1023 - 1024 W/cm2 intensity level.
Robust Multivariate Linear Regression Using the Student-t Distribution (2011)

This brief report documents the Matlab function MVSREGRESS for multivariate linear regression based on the Student-t distribution. Student-t regression is more robust (less sensitive to occasional extreme observations) than normal (gaussian) linear regression. The report describes the statistical model and the ECM algorithm used to compute the maximum a-posteriori estimate of the model parameters. Two examples are presented to illustrate the robustness of Student regression compared to Normal regression.
Griffithsin: An Antiviral Lectin with Outstanding Therapeutic Potential (2016)

Griffithsin (GRFT), an algae-derived lectin, is one of the most potent viral entry inhibitors discovered to date. It is currently being developed as a microbicide with broad-spectrum activity against several enveloped viruses. GRFT can inhibit human immunodeficiency virus (HIV) infection at picomolar concentrations, surpassing the ability of most anti-HIV agents. The potential to inhibit other viruses as well as parasites has also been demonstrated. Griffithsin's antiviral activity stems from its ability to bind terminal mannoses present in high-mannose oligosaccharides and crosslink these glycans on the surface of the viral envelope glycoproteins. Here, we review structural and biochemical studies that established mode of action and facilitated construction of GRFT analogs, mechanisms that may lead to resistance, and in vitro and pre-clinical results that support the therapeutic potential of this lectin.
Physiological variables during 10 years of endurance exercise (1976)

The reported decline in Physical Working Capacity (PWC) max is from 9-15 percent during the ages of 45 to 55 years. The use of vigorous physical activity to prevent this decline and to possibly protect against fatal myocardial infarction has been suggested. The purpose of this study was to investigate the effect of an endurance type exercise program on the maximal PWC of middle-aged men during a 10 year span. Sixteen men, initially 32-56 years (M-44.6), were trained with running or swimming at an intensity above 60 percent of VO2 max during a 10 year period. The average weekly running distance was 15 miles (25 km). The criterion for PWC was directly measured VO2 using the Douglas Bag/Scholander technique. No changes were observed in body weight, resting heart rate (HR), or resting blood pressure (BP). Maximal HR declined 7 beats per minute in 10 years. Pulmonary ventilation (STPD) increased approximately 18 percent. Mean VO2 max was essentially unchanged, 3.376 and 3.303 1/min STPD. VO2 max related to body weight was 43.7 initially and 44.4 ml/min-kg after 10 years. It was concluded that the usual 9-15 percent decline in PWC or VO2 max from age 45 to 55 years can be forestalled by regular endurance exercise. The results may have implications for protecting against heart attacks.
Genetic and phenotypic variation in UGT2B17, a testosterone-metabolizing enzyme, is associated with BMI in males (2015)

These data suggest that UGT2B17 deletion leads to reduced UGT2B17 activity, and lower BMI in male individuals. This is consistent with the hypothesis that reduced UGT2B17-mediated testosterone excretion results in higher testosterone levels. Future studies could confirm this hypothesis by directly measuring serum testosterone levels.
Sn-Ag-Cu-solder-reflow-capable 10-Gb/s &#x00D7; 4-channel very thin high-density parallel-optical modules (2012)

In recent years, optical interconnects are attracting attention to achieve high-speed signal transmission in high-end routers, high-end servers, and high performance computing systems. In rack-to-rack applications, AOCs that have the same electrical interface as conventional electrical cables have been equipped in actual systems especially. On the other hand, board-to-board applications have been expected as the next-generation high-density optical interconnects supported by high-density mounting of parallel-optical modules nearby LSI. In order to meet both of demands, we developed 10-Gb/s × 4-channel parallel-optical modules that are capable to be mounted by Sn-Ag-Cu-solder-reflow process which is the most popular for handling other SMDs. The size of fabricated modules is as small as 12mm × 7.2mm × 1.5mm. We paid attention to minimize the thickness to realize a simple heat dissipation structure together with other SMDs. We achieved a very low height as same as 1.5mm in total. We tested transmission characteristics and achieved error-free transmission in back-to-back, OM2 of 100 m and OM3 of 100 m where a power-penalty is estimated to 1dB. Through experiments of transmitting all 4 channels simultaneously, we clarified that the modules have a sufficient jitter margin in all channel. And we verified Sn-Ag-Cu reflow temperature resistance of the modules based on JIS standard whose peak temperature is as high as 250°C (i.e., JIS C 60068-2-58). We evaluated output power variation in TX module and sensitivity variation in RX modules before and after test. Both optical power variation and sensitivity variation are less than ±10%. We also fabricated a small PCB whose edge is compliant with a standard QSFP+ connector and TX and RX modules are mounted a PCB through Sn-Ag-Cu-solder-reflow process. We performed primary reliability tests of temperature cycling, mechanical shock and vibration tests based on the specified conditions in Telcordia GR-468-CORE. As results, optical power and input sensitivity deviation are less than ±10% and transmission characteristics have no degradation in all tests.