gebhart/patrepeval huggingface dataset:
Temperature- and structural-parameters-dependent characteristics of V-band heterojunction FET MMIC DROs (2003)

This paper describes a systematic approach to the design and analysis for dielectric resonator oscillators (DROs). The approach features a temperatureand structural-parameters-dependent dielectric resonator (DR) model and a newly developed temperature-dependent nonlinear FET model. The implementation of these models on a harmonic-balance circuit simulator allows prediction for mechanical tuning characteristics, coupling strength dependencies, and temperature-dependent performance of oscillation frequency, output power, and phase noise of DROs. V-band heterojunction FET monolithic-microwave integrated-circuit DROs utilizing a TE/sub 01/spl delta//-mode cylindrical DR were designed and fabricated based on the proposed procedure. Good agreement between the predicted and measured characteristics indicates the validity of our design technique featuring the proposed DR and FET models.
Measuring, modelling and predicting perceived reverberation (2017)

This paper investigates the relationship between the perceived level of reverberation and parameters measured from the room impulse response (RIR), as well as the design of an instrumental measure that predicts this perceived level. We first present the results of an experimental listening test conducted to assess the level of perceived reverberation in speech captured by a single microphone, before analysing the gathered data to assess the influence of parameters such as the reverberation time (T <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">60</sub> ) or the direct-to-reverberant ratio (DRR). Secondly, we use the results of this analysis to improve the signal based reverberation decay tail (R <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">DT</sub> ) measure, previously proposed by the authors to predict the perceived level of reverberation. The accuracy of the proposed measure is evaluated in terms of correlation with the subjective scores and compared to the performance of predictors using parameters extracted from the RIR. Results show that the proposed modifications to the RDT does improve its accuracy. Though still slightly outperformed by measures based on parameters of the RIR, we believe the proposed measure to be useful in scenarios in which the RIR or its parameters are unknown.
Liquid-phase agglomeration of silver atoms in olefinic and ether media: electrocatalytic application. 2 (1986)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTLiquid-phase agglomeration of silver atoms in olefinic and ether media: electrocatalytic application. 2Mark P. Andrews and Geoffrey A. OzinCite this: J. Phys. Chem. 1986, 90, 13, 2929–2938Publication Date (Print):June 1, 1986Publication History Published online1 May 2002Published inissue 1 June 1986https://pubs.acs.org/doi/10.1021/j100404a029https://doi.org/10.1021/j100404a029research-articleACS PublicationsRequest reuse permissionsArticle Views177Altmetric-Citations35LEARN 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 options Get e-Alerts
Exosomes, MDSCs and Tregs: A new frontier for GVHD prevention and treatment (2023)

The development of graft versus host disease (GVHD) represents a long-standing complication of allogeneic hematopoietic cell transplantation (allo-HCT). Different approaches have been used to control the development of GVHD with most relying on variations of chemotherapy drugs to eliminate allo-reactive T cells. While these approaches have proven effective, it is generally accepted that safer, and less toxic GVHD prophylaxis drugs are required to reduce the health burden placed on allo-HCT recipients. In this review, we will summarize the emerging concepts revolving around three biologic-based therapies for GVHD using T regulatory cells (Tregs), myeloid-derived-suppressor-cells (MDSCs) and mesenchymal stromal cell (MSC) exosomes. This review will highlight how each specific modality is unique in its mechanism of action, but also share a common theme in their ability to preferentially activate and expand Treg populations <i>in vivo</i>. As these three GVHD prevention/treatment modalities continue their path toward clinical application, it is imperative the field understand both the biological advantages and disadvantages of each approach.
THE SCOPE OF DIMENSIONAL ANALYSIS IN QUALITATIVE REASONING (1994)

Dimensional analysis, traditionally used in physics and engineering to identify quantitative relationships, has recently been applied to qualitative reasoning of physical systems. We illustrate some problems of this approach. In the light of this, we reexamine the fundamentals of dimensional analysis in order to more precisely characterize its scope and limitations as a tool in qualitative reasoning. We also explore its relationship to state equation representations of physical systems. In particular, we describe its value in providing a set of constraints to reduce the ambiguity that bedevils qualitative reasoning schemes. We argue that dimensional analysis should not be seen as a substitute for knowledge about the physics but rather a supplement to other sources of knowledge.
Longitudinal tracking of human dendritic cells in murine models using magnetic resonance imaging (2010)

Ex vivo generated dendritic cells are currently used to induce therapeutic immunity in solid tumors. Effective immune response requires dendritic cells to home and remain in lymphoid organs to allow for adequate interaction with T lymphocytes. The aim of the current study was to detect and track Feridex labeled human dendritic cells in murine models using magnetic resonance imaging. Human dendritic cells were incubated with Feridex and the effect of labeling on dendritic cells immune function was evaluated. Ex vivo dendritic cell phantoms were used to estimate sensitivity of the magnetic resonance methods and in vivo homing was evaluated after intravenous or subcutaneous injection. R2*-maps of liver, spleen, and draining lymph nodes were obtained and inductively coupled plasma mass spectrometry or relaxometry methods were used to quantify the Feridex tissue concentrations. Correlations between in vivo R2* values and iron content were then determined. Feridex labeling did not affect dendritic cell maturation or function. Phantom results indicated that it was possible to detect 125 dendritic cells within a given slice. Strong correlation between in vivo R2* values and iron deposition was observed. Importantly, Feridex-labeled dendritic cells were detected in the spleen for up to 2 weeks postintravenous injection. This study suggests that magnetic resonance imaging may be used to longitudinally track Feridex-labeled human dendritic cells for up to 2 weeks after injection.
Electrical v/s optical aggregation in multi-layer optical transport networks (2015)

With optical technology evolution, it becomes possible to perform all optical traffic grooming (AOTG) with a very fine granularity. In the context of flexible optical networking, AOTG paves the way to new possibilities in future transport networks. Finding the best trade-off between electrical and optical aggregation in intrinsically multi-layer transport networks is a complex challenge for operators. This paper compares CAPEX results and resource fill-in performances of electrical and optical aggregation solutions, through a real multilayer transport network case study.
A note on information-theoretic secret key exchange over wireless channels (2009)

For wireless channels, a number of information-theoretic secret key exchange protocols have been proposed and analyzed for their efficiency in the literature. We contend that for such protocols in a realistic adversarial model that includes an active adversary, average number of message-bits that need to be exchanged to obtain one-bit of secret key is an important performance metric, which has been previously overlooked in the literature. Using this insight, we analytically study a recently popular class of information-theoretic secret key exchange protocols that is based on wireless channel fading. We obtain analytical results for specific cases and provide fundamental insights into the competitive performance of this class of information-theoretic secret key exchange protocols.
Spectrum efficient support of wake-up receivers by using (O)FDMA (2018)

The use of a wake-up receiver (WUR) is an attractive means to reduce power consumption. However, when the wake-up signal (WUS) is sent in-band, the use of a WUR may potentially reduce the spectrum efficiency of the system. In this paper, we propose to multiplex the WUS, based on ON-OFF keying, with the user data using FDMA or OFDMA to allow for spectrum efficient use of WURs. The proposed WUR architecture is based on an envelope detector and an uncertain intermediate frequency (IF), which means that the user data will act as interference for the WUS. In spite of its low complexity, it is shown by means of simulations that good sensitivity performance can still be obtained. In addition, the multiplexing allows for great flexibility and the power allocated to the WUS and the user data, respectively, can be selected based on actual requirements.
Selective VIP Receptor Agonists Facilitate Immune Transformation for Dopaminergic Neuroprotection in MPTP-Intoxicated Mice (2015)

Vasoactive intestinal peptide receptor 2 can elicit immune transformation in a model of Parkinson's disease (PD). Such immunomodulatory capabilities can lead to neuroprotection by attenuating microglial activation and by slowing degradation of neuronal cell bodies and termini in MPTP-intoxicated mice. The protective mechanism arises from altering a Th1/Th2 immune cytokine response into an anti-inflammatory and neuronal sparing profile. These results are directly applicable for the development of novel PD therapies.
New Radio 5G User Plane Design Alternatives: One 5G Air Interface Framework Supporting Multiple Services and Bands (2016)

The standardization of 5G, referred to as new radio (NR), has started. The 5G air interface (AI) is envisioned to comprise a number of AIs including the evolution of Long Term Evolution (LTE) and new NR AIs operating at frequencies from below 1GHz and up to 100GHz. One of the key challenges is the design of an overall 5G AI that efficiently combines these AIs into one 5G AI framework. This paper examines how the AIs can be harmonized into a single 5G AI framework, while minimizing the complexity of standardization and implementation. The harmonization among the 5G AIs could take place at any layer: at the physical layer (PHY), at the Medium Access Control layer (MAC) or at the Packet Data Convergence Protocol (PDCP) layer. Among various detailed harmonization options that are being investigated in this context, for the integration of the new AIs at the physical layer, cyclic prefix-orthogonal frequency division multiplexing (CP-OFDM) waveform with various numerologies is considered as a basis and the MAC layer harmonization can be built on top of the PHY layer, where the CP-OFDM-related AIs of different numerologies are catered for different future services, bands, and cell types. Also, harmonization at the PDCP layer appears to be the most viable harmonization option between the evolved LTE and the new AIs. The results of the first conducted 5G AI analysis will constitute discussion topics for other 5G-PPP projects as well as 3GPP.
Supplementary Figure 1 from Earlier Detection of Breast Cancer with Ultrasound Molecular Imaging in a Transgenic Mouse Model (2023)

&lt;p&gt;PDF file - 1480K, Box Plot summarizing the angiogenesis score obtained for the four different histological stages (normal, hyperplasia, DCIS and invasive) of breast cancer).&lt;/p&gt;
Analysis of nonohmic current-voltage characteristics in a Cu-compensated GaAs photoconductor (1991)

An analysis of observations of nonohmic current conduction in a copper-compensated GaAs (GaAs:Cu) photoconductive switch is presented. It is demonstrated that conduction during illumination and at modest current densities can be attributed to an optically injected plasma influenced by single-injection contact effects. However, at higher current densities, a double-injection model is more suitable. We provide further evidence that the transition from a single-injection process to a double-injection process is accompanied by the formation of at least one current filament with cross-sectional area of 5×10−4 cm2, and a peak current density greater than 103 A/cm2. We finish by suggesting avalanche breakdown at the n+−i anode junction as a possible mechanism for the onset of significant hole injection at the anode, a condition necessary to justify the use of a double-injection-dominated transport model in an essentially n-i-n device.
Nanofocusing of hard X-ray free electron laser pulses using diamond based Fresnel zone plates (2011)

A growing number of X-ray sources based on the free-electron laser (XFEL) principle are presently under construction or have recently started operation. The intense, ultrashort pulses of these sources will enable new insights in many different fields of science. A key problem is to provide x-ray optical elements capable of collecting the largest possible fraction of the radiation and to focus into the smallest possible focus. As a key step towards this goal, we demonstrate here the first nanofocusing of hard XFEL pulses. We developed diamond based Fresnel zone plates capable of withstanding the full beam of the world's most powerful x-ray laser. Using an imprint technique, we measured the focal spot size, which was limited to 320 nm FWHM by the spectral band width of the source. A peak power density in the focal spot of 4×10(17)W/cm(2) was obtained at 70 fs pulse length.
PyZDDE: First package release to PyPI (2015)

This is the first package release to PyPI. The PyZDDE is now stable.
ChemInform Abstract: Efficient Formation and Cleavage of Disilanes by Potassium Graphite. Silylation with Silyl Metal Reagents. (1989)

Abstract The disilane (I) is reductively cleaved with potassium‐graphite laminate under formation of the corresponding silylpotassium compound as the intermediate which reacts with various electrophiles such as (II) or (IV) to give the substituted silanes (III) or (V).
Cross-layer architecture for adaptive video multicast streaming over multirate wireless LANs (2007)

Multicast video streaming over multirate wireless LANs imposes strong demands on video codecs and the underlying network. It is not sufficient that only the video codec or only the underlying protocols adapt to changes in the wireless link quality. Research efforts should be applied in both and in a synchronized way. Cross layer design is a new paradigm that addresses this challenge by optimizing communication network architectures across traditional layer boundaries. This paper presents cross-layer architecture for adaptive video multicast streaming over multirate wireless LANs where layer-specific information is passed in both directions, top-down and bottom-up. The authors jointly consider three layers of the protocol stack: the application, data link and physical layers. The authors analyze the performance of the proposed architecture and extensively evaluate it via simulations. The results show that the real-time video quality of the overall system can be greatly improved by cross-layer signaling.
Charge‐Assisted Engineering of Color Centers in Diamond (2021)

Charge-Assisted Engineering The recently developed method of charge-assisted single defect engineering brings the full scalability of solid-state qubits or quantum sensors closer. Applied to colour centres in diamond (NV, SnV, MgV,…), it enables a strong enhancement of their creation yield and of their properties such as charge-state stability or spin coherence times. More details can be found in article number 2000614 by Sébastien Pezzagna and co-workers.
Control of Surface Work Function by Depositing Insulating Oxide Capping Layers (2013)

We have studied the work function modulation in pulsed laser deposited nonpolar MgO (100) and polar MgO (100) and LaAlO 3 (100) insulating oxide films on Nb:SrTiO 3 (100) and (111) substrates using Kelvin probe measurements. The work function modulation in MgO/Nb:SrTiO 3 is ∼1 eV, which may be understood by the “electron compression model”, where the leaked-out electrons from Nb:SrTiO 3 surface are pushed back by MgO layer, reducing the surface dipole moment. By forming double insulating top layer in LaAlO 3 /nondoped SrTiO 3 /Nb:SrTiO 3 (100), we have realized the work function as low as ∼2.2 eV, which would be originated in the formation of high-density electrons at the LaAlO 3 /nondoped SrTiO 3 interface and can be very close to the top surface. The present results demonstrate that chemically stable oxides can be used as low work function devices employing heterostructure form.
Probing Local Emission Properties in InGaN/GaN Quantum Wells by Scanning Tunneling Luminescence Microscopy (2022)

Scanning tunneling electroluminescence (STL) microscopy is performed on a 3 nm‐thick InGaN/GaN quantum well (QW) with [In] = 0.23 such that the main light emission occurs in the green. The technique is used to map the radiative recombination properties at a scale of a few nanometers and correlate the local electroluminescence map with the surface topography simultaneously imaged by scanning tunneling microscopy. While the expected green emission is observed all over the sample, measurements performed on a 500 nm × 500 nm area around a 150 nm‐large and 2.5 nm‐deep hexagonal defect reveal intense emission peaks at higher energies close to the defect edges, features which are not visible in the macrophotoluminescence spectrum of the sample. Via a fitting of the local tunneling electroluminescence spectra, quantitative information on the fluctuations of the intensity, peak energy, width, and phonon replica intensity of the different spectral contributions is obtained, which provides information on carrier localization in the QW. This procedure also indicates that the carrier diffusion length on the probed area of the QW is shorter than 50 nm.
Enzymatic Writing to Soft Films: Potential to Filter, Store, and Analyze Biologically Relevant Chemical Information (2013)

Sensor‐based chemical analyses commonly enlist either the molecular recognition capabilities of biology (e.g., enzyme biosensors) or advanced information processing algorithms (e.g., the electronic nose). Here, a hybrid approach is proposed in which an enzyme is used to “filter” chemical information and write this information to a film which then serves as a permanent storage medium that can be ‘read’ repeatedly, interactively, and by multiple sensor modalities. This approach is demonstrated by analyzing common dietary phenols that are reported to offer health benefits. Specifically, the enzyme tyrosinase is used to convert these phenols into reactive quinones that graft (i.e., write) to a chitosan film. Grafting can be detected by optical, mechanical, and electrochemical sensors. Importantly, grafting confers redox activity to the films and this redox activity can be probed interactively by advanced electrochemical methods that allow the intrinsic redox reactivities to be compared, redox interactions to be identified, and biologically relevant redox activities to be examined. The transfer of chemical and biological information to a film is envisioned to provide broader access to the extensive capabilities offered by sensor technologies and signal processing methodologies.
Atomic Layer Deposition of LiF and Lithium Ion Conducting (AlF3)(LiF)x Alloys Using Trimethylaluminum, Lithium Hexamethyldisilazide and Hydrogen Fluoride (2017)

Atomic layer deposition (ALD) of LiF and lithium ion conducting (AlF3)(LiF)x alloys was developed using trimethylaluminum, lithium hexamethyldisilazide (LiHMDS) and hydrogen fluoride derived from HF-pyridine solution. ALD of LiF was studied using in situ quartz crystal microbalance (QCM) and in situ quadrupole mass spectrometer (QMS) at reaction temperatures between 125°C and 250°C. A mass gain per cycle of 12 ng/(cm2 cycle) was obtained from QCM measurements at 150°C and decreased at higher temperatures. QMS detected FSi(CH3)3 as a reaction byproduct instead of HMDS at 150°C. LiF ALD showed self-limiting behavior. Ex situ measurements using X-ray reflectivity (XRR) and spectroscopic ellipsometry (SE) showed a growth rate of 0.5-0.6 Å/cycle, in good agreement with the in situ QCM measurements.ALD of lithium ion conducting (AlF3)(LiF)x alloys was also demonstrated using in situ QCM and in situ QMS at reaction temperatures at 150°C A mass gain per sequence of 22 ng/(cm2 cycle) was obtained from QCM measurements at 150°C. Ex situ measurements using XRR and SE showed a linear growth rate of 0.9 Å/sequence, in good agreement with the in situ QCM measurements. Stoichiometry between AlF3 and LiF by QCM experiment was calculated to 1:2.8. XPS showed LiF film consist of lithium and fluorine. XPS also showed (AlF3)(LiF)x alloy consists of aluminum, lithium and fluorine. Carbon, oxygen, and nitrogen impurities were both below the detection limit of XPS. Grazing incidence X-ray diffraction (GIXRD) observed that LiF and (AlF3)(LiF)x alloy film have crystalline structures. Inductively coupled plasma mass spectrometry (ICP-MS) and ionic chromatography revealed atomic ratio of Li:F=1:1.1 and Al:Li:F=1:2.7: 5.4 for (AlF3)(LiF)x alloy film. These atomic ratios were consistent with the calculation from QCM experiments. Finally, lithium ion conductivity (AlF3)(LiF)x alloy film was measured as σ = 7.5 × 10-6 S/cm.
The 16,384-node Parallelism of 3D-CNN Training on An Arm CPU based Supercomputer (2021)

As the computational cost and datasets available for deep neural network training continue to increase, there is a significant demand for fast distributed training on supercomputers. However, porting and tuning applications for new advanced supercomputers requires tremendous amount of development efforts. Therefore, we present software tuning best practice for a 3D-CNN model training on a new Arm CPU based supercomputer, Fugaku. We (i) tune computation in DL by a JIT translator for aarch64, (ii) optimize collective communication such as Allreduce for 6D mesh/torus network topology, (iii) tune I/O by data staging with compression and data loader with caching, and (iv) parallelize training in data and model parallelism. We apply the proposed methods to a CosmoFlow 3D-CNN model, and achieve the training in 30 minutes using 16,384 nodes consisting of 4096 data- and 4 model-parallelism. This is the fastest result of any CPU-based systems in MLPerf HPC v0.7 in the world.
A CW 266 nm coherent light source pumped by the SHG beam of the single frequency fiber amplifier radiation (2008)

Get PDF Email Share Share with Facebook Tweet This Post on reddit Share with LinkedIn Add to CiteULike Add to Mendeley Add to BibSonomy Get Citation Copy Citation Text S. Huang, T. Ando, Y. Orii, and T. Sumiyoshi, "A CW 266 nm coherent light source pumped by the SHG beam of the single frequency fiber amplifier radiation," in Advanced Solid-State Photonics, OSA Technical Digest Series (CD) (Optica Publishing Group, 2008), paper MC25. Export Citation BibTex Endnote (RIS) HTML Plain Text Citation alert Save article