gebhart/patrepeval huggingface dataset:
Superionic Li-Ion Transport in a Single-Ion Conducting Polymer Blend Electrolyte (2022)

Single-ion conducting polymers (SICs) are promising candidates for the next generation of safer polymer electrolytes due to their stability and high transference number. However, the conductivity in SICs is often limited by the mobility of the polymer backbone as the ion mobility is coupled to segmental relaxations. We present polymer blend electrolytes, consisting of a precise single Li-ion conducting polymer with a (trifluoromethanesulfonyl)imide anion pendant group and a low molar mass poly(ethylene oxide) (PEO). Dielectric relaxation spectroscopy is used to probe both the ion transport properties and segmental dynamics of these blends, and X-ray scattering is used to evaluate their morphology. PEO associates with the ionic groups of the SIC, forming a miscible blend with pathways that promote ion transport. At a high PEO content (an ethylene oxide to Li+ ratio of 10), ionic conductivities greater than 10–5 and 10–4 S cm–1 are achieved at 90 and 130 °C, respectively. A comparison of conductivities and polymer relaxation times shows that the high PEO content blends exhibit superionic transport, in which there is some decoupling of the Li-ion motion from the backbone mobility. This superionic transport is uncommon in single Li-ion conductors above the glass transition temperature, thus this work presents a critical step toward establishing design rules for superionic transport in SICs.
(Invited) Electrical Performance Improvement in 300mm Ge-Based Devices (2020)

As device feature size continues to scale, new device architecture and dielectric materials with engineered properties are becoming essential in overcoming the issues in scaled CMOS devices such as short channel effects. Some of the recent innovations device makers are exploring for better electrostatic control and improved performance are the introduction of new device architecture such as gate all around devices (nanowires/nanosheets), and channel engineering such as high mobility channel materials (Ge and III-V). Ge is particularly attractive for use as a channel material for P-type MOSFETs due to its high hole mobility and Si VLSI high volume manufacturing (HVM) compatibility. However, there are couple significant remaining challenges to integrating Ge into 300mm Si VLSI HVM which are a stable gate-stack formation and integration of Ge on Si (1-5). In this talk, advances in Ge gate stack engineering will be discussed. Using Si compatible technologies we have demonstrated scaled EOT by engineering both the interface and high-k formation. Reference 1. S. Swaminathan, Y. Oshima, M. Kelly, P.C. McIntyre, Appl. Phys. Lett., 95, 032907 (2009). 2. L. Zhang, M. Gunji, S. Thombare, P.C. McIntyre, IEEE Electr. Device. L. , 34 , 736 (2013). 3. C.H Lee, T. Nishimura, C. Lu, S. Kabuyanagi, A. Toriumi, IEDM , 32.5.1 (2014). 4. P. S. Goley, M. K. Hudait, Materials , 2301 (2014). 5. Q. Xie, S. Deng, M. Shaekers, D. Lin, M. Caymax, A. Delabie, X-P Qu, Y-L. Jiang, D. Dedytsche, C. Detavernier, Semicond. Sci. Technol. 074012 (2012)
Proceedings of the 9th ACM international workshop on Wireless network testbeds, experimental evaluation and characterization (2014)

It is our great pleasure to welcome you to the The Ninth ACM International Workshop on Wireless Network Testbeds, Experimental Evaluation, and Characterization -- WiNTECH'14. This year's workshop continues the tradition of being the premier forum for presentation of research results and experience reports on leading edge issues of experimental wireless networking. The mission of the symposium is to bring together researchers working in the broad area of experimental wireless networking. This workshop will serve as a forum to share new ideas/experiences in all experimental aspects of wireless networks and systems, and facilitate discussions of key unresolved challenges in this area.

The call for papers attracted numerous submissions from Asia, Europe, the Middle East and the United States. The program committee accepted 10 papers covering a variety of diverse topics focused on experimental wireless networking, including interference management, whitespace and spectrum management, and wireless medium access control. In addition, the program includes a exciting demo session, and a keynote speech by Prof. Suman Banerjee, University of Wisconsin- Madison.
Influence of Substituent Effect on Proton-transfer Reaction of Glycine Catalyzed by Water Molecules (2014)

Influences of five substituent groups,methyl,isopropyl,mercapto methyl,methylol,and benzyl,on proton-transfer reaction of glycine catalyzed by water molecules was studied using MP2/6-31++G**∥B3LYP/6-31++G**method.The main conclusions were as follows.1)All 5 substituent groups were electron-donating groups and all of them could increase the binding energy of hydrated glycine complexes,which enhanced the stability of substituent products.2)The minimum number of water molecules necessary to catalyze the proton-transfer reaction of glycine could be decreased from 2 to 1 due to the substituent effects of methylol and benzyl,while not for the other substituent groups.3)The substituent effects of these group could reduce the heat value so as to enhance the relative stability of products and decrease the energy barrier of the endothermic proton-transfer reaction,both of which would thermodynamicly and kineticly favor transfer of protons.4)The contribution of each substituent group to proton-transfer reaction catalyzed by water molecules followed the order of benzyl methylol methylisopropyl mercapto methyl.
Experimental demonstration of obstruction-tolerant free-space transmission of two 50-Gbaud QPSK data channels using Bessel beams carrying orbital angular momentum (2014)

We experimentally demonstrate free-space optical transmission using two multiplexed OAM-carrying Bessel beams under obstructed path conditions. An OSNR penalty <; 2.5 dB is observed when the obstruction is placed in the beam center.
The impact of application signaling traffic on public land mobile networks (2014)

As mobile Internet applications supporting real-time communications services are pervasively used, traffic patterns in mobile networks have changed significantly. New mobile Internet applications differ from traditional applications such as web browser and FTP in that they need always-on connectivity and generate a large amount of signaling traffic. The traffic patterns of these new mobile applications lead to frequent change of radio resource control states between connected and idle in the user equipment, consuming device battery power and causing excessive signaling overhead. The growth in signaling has resulted in a traffic surge that has attracted the attention of mobile network operators. In this article, we first explore traffic composition in a 3G network and show that chatty applications such as instant messenger and social network services contribute to the frequent change of radio states. We then describe the mechanism behind the surge in signaling traffic and describe the disastrous outcome when an application server failure and recovery occurs. Lastly, we discuss some remedies to reduce the application signaling traffic and network load in 3G and LTE networks. These remedies include development of network-aware smart applications that consider the mobile network characteristics and introduction of push notification services. We also present related future work and our research directions.
Tuning polymer melt fragility with antiplasticizer additives (2007)

A polymer-diluent model exhibiting antiplasticization has been developed and characterized by molecular dynamics simulations. Antiplasticizer molecules are shown to decrease the glass transition temperature Tg but to increase the elastic moduli of the polymeric material in the low-temperature glass state. Moreover, the addition of antiplasticizing particles renders the polymer melt a stronger glass-forming material as determined by changes in the characteristic temperatures of glass formation, the fragility parameter D from fits to the Vogel-Folcher-Tamman-Hesse equation, and through the observation of the temperature dependence of the size of cooperatively rearranging regions (strings) in each system. The length of the strings exhibits a weaker temperature dependence in the antiplasticized glass-forming system than in the more fragile pure polymer, consistent with the Adam-Gibbs model of glass formation. Unexpectedly, the strings become increasingly concentrated in the antiplasticizer particles upon cooling. Finally, we discuss several structural indicators of cooperative dynamics, and find that the dynamic propensity (local Debye-Waller factor <u2>p) does seem to provide a strong correlation with local molecular displacements at long times. The authors also consider maps of the propensity, and find that the antiplasticized system exhibits larger fluctuations over smaller length scales compared to the pure polymer.
Gastric adenocarcinoma inducing portal hypertension: A rare presentation (2007)

Advanced gastric cancer usually presents with symptoms due to direct extension into adjacent viscera, distant metastases from lymphatic or hematogenic dissemination and peritoneal seeding. However, portal hypertension as a presentation of metastatic gastric cancer is rare and usually seen in association with other malignancies, e.g. hepatocellular and pancreatic carcinoma. We report a case of signet ring adenocarcinoma of the stomach that presented with esophageal and duodenal varices and bleeding due to portal hypertensive gastropathy. Pagetoid spread of cancer cells likely caused early metastasis and the unusual presentation. We also discussed the pathophysiology of development of portal hypertension in association with malignancies.
Synthesis of quaternary ammonium hydroxide from its halide salt by bipolar membrane electrodialysis (BMED): effect of molecular structure of ammonium compounds on the process performance (2014)

Abstract BACKGROUND Conventional methods for synthesis of quaternary ammonium hydroxides, such as the reaction of quaternary ammonium chloride, ion‐exchange and electro‐electrodialysis cannot achieve benign production of QAOH without secondary pollution. The objective of the present study was to develop bipolar membrane electrodialysis with a novel stack configuration as an improved method to prepare high purity quaternary ammonium hydroxide from its halide salt. RESULTS To investigate the synthesis of quaternary ammonium hydroxide ( QAOH ) with high purity by using electrodialysis with bipolar membranes ( BMED ), four different types of quaternary ammonium hydroxides (tetramethylammonium hydroxide, TMAOH ; tetrapropylammonium hydroxide, TPAOH ; methyltriethylammonium hydroxide, MTAOH ; and benzyltrimethylammonium hydroxide, BTAOH ) were chosen as the target products. The effect of the molecular structure of four different types of halide salts ( NR 4 X ) on the BMED performance was studied by investigating operating parameters such as current density, feed concentration and feed flow velocity and energy consumption on the basis of ion dimensions and molecular weight, ion electrophoretic mobility and the interaction between ammoniums and membranes. The results indicate that it is feasible to obtain quaternary ammonium hydroxides with high purity (Cl − /Br − content &lt; 500 ppm) by BMED with a novel four‐compartment configuration in view of environmental aspects. CONCLUSION For converting higher molecule size halide salts, the process performance was lower, while the energy consumption increased, at similar experimental conditions, which is in line with the theory. © 2014 Society of Chemical Industry.
High Resolution Imaging of SN 1987A at 10 micron (2003)

Using The Thermal-Region Camera and Spectrograph (T-ReCS) attached to the Gemini South 8m telescope, we have detected and resolved 10 micron emission at the position of the inner equatorial ring (ER) of supernova SN 1987A at day 6067. "Hot Spots" similar to, but not necessarily coincident with, those found in the optical and near-IR are clearly present. The morphology of the 10 micron emission is globally similar to the morphology at other wavelengths from X-ray to radio. The mid-IR flux in the region of SN 1987A is dominated by emission from dust in the ER. Our observations also show a weak detection of the central ejecta at 10 micron, which implies that previous bolometric flux estimates (through day 2100) were not significantly contaminated by this newly discovered emission from the ring. If we assume a dust temperature of 160 K, the estimated thermal emission is 2.E+37 erg/s from the ER and 1.E+36 erg/s from the ejecta. That latter value is too low to account for the energy budget of the supernova computed by current models. Finally, using SN 1987A as a template, we discuss the possible role of supernovae as major sources of dust in the Universe.
Early abolition of cough reflex predicts mortality in deeply sedated brain-injured patients (2020)

Early (day 1) cough reflex abolition is an independent predictor of mortality in deeply sedated brain-injured patients. Abolished cough reflex likely reflects a brainstem dysfunction that might result from the combination of primary and secondary neuro-inflammatory cerebral insults revealed and/or worsened by sedation.
High-Resolution, High-Throughput, Positive-Tone Patterning of Poly(ethylene glycol) by Helium Beam Exposure through Stencil Masks (2013)

In this work, a collimated helium beam was used to activate a thiol-poly(ethylene glycol) (SH-PEG) monolayer on gold to selectively capture proteins in the exposed regions. Protein patterns were formed at high throughput by exposing a stencil mask placed in proximity to the PEG-coated surface to a broad beam of helium particles, followed by incubation in a protein solution. Attenuated Total Reflectance-Fourier Transform Infrared Spectroscopy (ATR-FTIR) spectra showed that SH-PEG molecules remain attached to gold after exposure to beam doses of 1.5-60 µC/cm(2) and incubation in PBS buffer for one hour, as evidenced by the presence of characteristic ether and methoxy peaks at 1120 cm(-1) and 2870 cm(-1), respectively. X-ray Photoelectron Spectroscopy (XPS) spectra showed that increasing beam doses destroy ether (C-O) bonds in PEG molecules as evidenced by the decrease in carbon C1s peak at 286.6 eV and increased alkyl (C-C) signal at 284.6 eV. XPS spectra also demonstrated protein capture on beam-exposed PEG regions through the appearance of a nitrogen N1s peak at 400 eV and carbon C1s peak at 288 eV binding energies, while the unexposed PEG areas remained protein-free. The characteristic activities of avidin and horseradish peroxidase were preserved after attachment on beam-exposed regions. Protein patterns created using a 35 µm mesh mask were visualized by localized formation of insoluble diformazan precipitates by alkaline phosphatase conversion of its substrate bromochloroindoyl phosphate-nitroblue tetrazolium (BCIP-NBT) and by avidin binding of biotinylated antibodies conjugated on 100 nm gold nanoparticles (AuNP). Patterns created using a mask with smaller 300 nm openings were detected by specific binding of 40 nm AuNP probes and by localized HRP-mediated deposition of silver nanoparticles. Corresponding BSA-passivated negative controls showed very few bound AuNP probes and little to no enzymatic formation of diformazan precipitates or silver nanoparticles.
Principles and Practice of Internal Hemodiafiltration (2007)

It has recently been suggested that the potentials of modern high-flux membranes could be exploited with the so-called internal hemodiafiltration (iHDF) technique. In principle, iHDF works just as high-flux hemodialysis but requires the convective dose to be clinically relevant, quantifiable and possibly adjustable by the operator. In this chapter, we briefly survey the theoretical, technological and practical aspects of iHDF, focusing on the mechanism ensuring its convective potential, i.e. the internal filtration/backfiltration (IF/BF) phenomenon. Based on theory, it is highlighted that the enhancement of the convective dose during iHDF relies upon a wise design of the hemodialyzer, both in terms of membrane performance and of hydrodynamics, whereas the adjustment of convection is feasible by proper regulation of the treatment parameters. IF/BF measurements appear to be feasible by indirect means; however, investments are needed to bring technology from the mere research field to the clinical practice. An alternative approach to IF/BF quantification is using mathematical models provided that the developed calculation tools are handy enough for the clinician, or even be implemented in the dialysis machine itself. IF/BF 'calculators' also represent a means to make the clinical staff conscious of the filtration phenomena that take place inside a high-flux hemodialyzer. It is concluded that iHDF is a possible complementary, simplified technique which could increase the clinical diffusion of high-flux convective treatments in the near future.
SelectiveN‐Derivatization of Aminoglycosidesen Routeto New Antibiotics and Antivirals (2007)

This chapter contains sections titled: Aminoglycoside Antibiotics RNA Targeting by Aminoglycosides The Role of Amino Functions in RNA Binding Development of RNA-Targeting Drugs Regioselective N-Modification of Naturally Occurring Aminoglycosides Neamine-Based RNA ligands Concluding Remarks
Mouse-heart grafts expressing an incompatible carbohydrate antigen. II. Transition from accommodation to tolerance (2004)

In the absence of T-cell help, anticarbohydrate B cells exposed to incompatible carbohydrate antigens of transplanted organs differentiate first into cells capable of producing accommodating antibodies, but, after prolonged exposure, these B cells gradually become tolerized. These findings suggest that prolonged T-cell suppression in recipients of ABO-incompatible allografts may result in a similar induction of tolerance to incompatible blood-group antigens.
Numerical study of phonon localization in disordered systems (1985)

A new numerical method has been developed to find the frequencies and vibration patterns of normal modes of harmonic systems. We have used this method to calculate the phonon density of states, and the phonon localization length for a two-dimensional square lattice with mass disorder.
Effects of Combination of Proliferative Agents and Erythropoietin on Left Ventricular Remodeling Post–Myocardial Infarction (2011)

Our findings revealed that EPO, hCG, or their combination ameliorate cardiac remodeling post-MI. Whereas EPO stimulates neovascularization only and hCG + EPO stimulates c-kit+ cell proliferation. These data suggest that combining mobilizing and proliferative agents adds to the durability and sustainability of cytokine-based therapies for remodeling post-MI.
Filtration performance of novel microfibrous media embedded with nanofiber flocs for aerosol particle removal (2018)

Ingestion and accumulation of sea salt and other impurities is a major challenge for high speed vessels, turbine engines, and other air breathing systems. The performance and reliability of filters are anticipated to be improved significantly after the rate of performance degradation is reduced via enhanced filtration media and well-designed filtration approaches. This study proposes to apply anionic surfactant to disperse the nanofibers thoroughly and employ cationic surfactant to flocculate the dispersed nanofibers into numerous small groups of nanofiber flocs. Using the wet-lay procedure in the lab, the novel porous microfiber media was then fabricated with small groups of nanofiber flocs together with activated carbon and polyester fibers. The unique nanofiber filter media was then evaluated for filtration performance using face velocity, pressure drop, and filtration efficiency parameters. Due to nanoflocced fiber inclusion, an anomalous region in the filtration efficiency versus pressure drop regime was observed where wall slip occurring at the nanostructured surface provided an unusually high level of filtration efficiency near the most penetrating particle size (MPPS) region of 0.1-0.4 μm with a concomitant reduction in the normally encountered levels of pressure drop. This anomalous increase in the filtration efficiency versus pressure drop is a novel phenomenon and it is highly beneficial to aerosol filtration. The enhanced filtration reveals that the quality factor near the MPPS region increases significantly due to the inclusion of nanofiber flocs. The unique porous filtration media is expected to increase the dirt holding capacity and prolong the lifecycle of the turbine air filter systems.
A 76-MHz BiCMOS programmable logic sequencer (1989)

A BiCMOS programmable logic sequencer with a maximum operating frequency of 76 MHz at a power dissipation of 370 mW has been developed. The device is organized as 16 inputs, 48 product terms, and eight registered outputs. The excellent speed power performance and TTL/CMOS compatibility were realized by an optimized circuit design coupled with an advanced BiCMOS process. The process features 13-GHz bipolar transistors, 1- mu m CMOS, TiW fuses, poly resistors, three-layer metal, and single-layer polycide. Bipolar devices are used in areas that utilize their strengths such as high current drivers, small-signal sensing, and precise current sources. CMOS is used in other areas to conserve layout size and power.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>
70% Efficient Relativistic Magnetron With Axial Extraction of Radiation Through a Horn Antenna (2010)

At the Nagaoka University of Technology (Japan), Daimon and Jiang used particle-in-cell (PIC) code simulations to demonstrate that the electronic efficiency of the A6 magnetron with axial extraction can be increased from 3% up to 37% applying different diffraction outputs, from tapered cavities in a conical horn antenna to modified expanded ones that improve magnetron matching with the antenna. This paper presents PIC code simulation results for the modified magnetron design using a transparent cathode, in contrast with Daimon and Jiang's simulations that used a solid explosive emission cathode. Furthermore, by further optimizing the magnetron parameters, we demonstrate an efficiency approaching 70% with gigawatt radiation power for an applied voltage of 400 kV. By maintaining a synchronous interaction of electrons with the operating wave, we found that the radiation power increases as the square of the diode voltage up to a diode voltage of 800 kV with short rise time that does not exceed 20 ns. In addition, we show that using a transparent cathode promotes avoiding the regime of hard excitation of magnetrons.
Inverted Confocal Microscopy For Biological And Material Applications (1989)

Aspects of the inverted versus top view configuration for confocal microscopy are examined with the inverted-type clearly offering advantages for high-resolution imaging of certain types of biological specimen. The role and possibilities of the use of pinholes of variable size in confocal microscopy is discussed and data are presented for combinations of objectives and various sizes of pinholes.