gebhart/patrepeval huggingface dataset:
Dynamics of alkyl chains in monolayer protected metal clusters and their superlattices (2007)

Alkyl chains dynamics in monolayer protected metal cluster (MPC) systems of gold and silver have been studied by the quasielastic neutron scattering (QENS) technique. Isolated MPCs investigated are 6, 12 and 18 carbon n-alkyl chain thiolate protected 4 nm diameter gold clusters while the superlattices are their silver analogues. Evolution of dynamics with temperature is found to be very different in the isolated clusters and their superlattices. While continuous evolution of the dynamics of the monolayer was observed in isolated MPCs, it is abrupt in superlattice systems and occurs at a temperature consistent with the superlattice melting detected in calorimetry measurements. A model where the chain undergoes uniaxial rotational diffusion with additional body axis fluctuation was found to describe the data consistently. For the superlattice systems, the chains are found to be held by strong inter-chain interactions below the superlattice melting. The data from the planar silver thiolate systems show similar behavior like the superlattice systems, consistent with the calorimetric data.
Grain refinement and high strengthening of 7075 aluminum alloy by high-pressure sliding (2012)

High-Pressure Sliding (HPS) is a new severe plastic deformation process for sheet samples under high-pressure. In this study, the HPS is applied to an age-hardenable 7075 aluminum alloy for grain refinement. HPS was conducted under a pressure of 1 GPa for sliding distances of 7.0 mm at room temperature and for 10 mm at 373K, and thus the average grain size was reduced to ~280 nm and ~240 nm, respectively. Ultimate tensile strength of ~600 MPa was achieved by this grain refinement. Aging at 373K of the HPS-processed samples led to further hardening to 750 MPa. It is shown that simultaneous strengthening due to grain refinement and fine precipitation is achieved in the 7075 aluminum alloy by application of HPS and subsequent aging.
Parallel processing in database management systems (2003)

Summary form only given. Progress has been made in online transaction processing. It has been proved that comparable performance improvements can be made in decision-support environments. Research done in this area has been examined. Specifically, the authors have explored various tradeoffs between loosely and tightly coupled multiprocessing architectures.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>
Effect of surface treatments on the mechanical properties of natural fiber textile composites made by VaRTM method (2014)

In this study, we aimed to improve the strength of textile composites by applying surface treatments on natural fibers. Natural fibers used were flax and hemp, and the matrix was an epoxy acrylate resin. The flax fiber textile was treated with acetone, laundry detergent, and aqueous solution of sodium hydroxide, because water repellent substances were adhered to the fibers. Hemp fiber textile was chemically-treated with polysilazane, silane coupling agent, and coated by polyvinyl alcohol (PVA). These treatments were carried out to improve the adhesion by treating the fiber surface. Natural fiber textile composites were made by a vacuum assisted resin transfer molding (VaRTM) method. After molding, the effect of washing process and surface treatments was verified by tensile tests. The most effective washing process was alkali-treatment with an aqueous solution of sodium hydroxide. The alkali-treated flax fiber composite had its tensile strength improved by 19.7% compared to the untreated fiber composite. However, the tensile strength and Young’s modulus of surface treated hemp fiber composite were reduced. The effect of PVA coating was examined by using a micro-droplet method. The interfacial shear strength of PVA-coated hemp fiber was reduced compared to that of untreated hemp fiber. In addition, the interfacial shear strength was reduced with increasing PVA content.
Author Correction: Cross-ancestry genome-wide association analysis of corneal thickness strengthens link between complex and Mendelian eye diseases (2019)

Emmanuelle Souzeau, who contributed to analysis of data, was inadvertently omitted from the author list in the originally published version of this Article. This has now been corrected in both the PDF and HTML versions of the Article.
High yield fabrication of low threshold single-mode GaAs/AlGaAs semiconductor ring lasers using metallic etch masks (2010)

We demonstrate a novel high yield fabrication process for single-mode ridge-waveguide GaAs/AlGaAs ring lasers with significantly lower threshold currents than previously reported for similar devices. In this fabrication process, the ridge waveguide structure is patterned using a metallic etch mask, which survives ensuing fabrication steps to form a continuous metallic cover over the entire resonator structure. This metallic cover improves the uniformity of electrical contact between the resonator structure and the metallic biasing layer deposited at the conclusion of the fabrication process. This leads to optimum electrical pumping of the fabricated devices. This fabrication process also allows for the passivation of the ridge-waveguide device sidewalls and separation of the metallic biasing layer from the optical mode.
Low Switching Power Silica-Based Super High Delta Thermo-Optic Switch with Heat Insulating Grooves (2001)

A silica-based 2/spl times/2 thermo-optic switch with super high delta planar lightwave circuits has been fabricated and used with a low switching power configuration. This switch has two features that aid switching power reduction, namely heat insulating grooves and a thick undercladding. Dependence of the switching characteristics on these features has been examined both theoretically and experimentally. A very low switching power of 45 mW has been achieved.
1000 Port‐A‐Cath® Placements by Subclavian Vein Approach: Single Surgeon Experience (2014)

This is a very large series of PAC placement with an ultrasound-guided approach for left subclavian vein and X-ray confirmation, performed by a single surgeon, demonstrating both the safety and effectiveness of the procedure.
Impacts of WLTP Test Procedure on Fuel Consumption Estimation of Common Electrified Powertrains (2019)

&lt;div class="section abstract"&gt;&lt;div class="htmlview paragraph"&gt;The new European test procedure, called the worldwide harmonized light vehicle test procedure (WLTP), deviates in some details from the current NEDC-based test which will have an impact on the determination of the official EU fuel consumption values for the new vehicles. The adaptation to the WLTP faces automakers with new challenges for meeting the stringent EU fuel consumption and CO2 emissions standards. This paper investigates the main changes that the new test implies to a mid-size sedan electrified vehicle design and quantifies their impact on the vehicles fuel economy. Three common electrified powertrain architectures including series, parallel P2, and powersplit are studied. A Pontryagin’s Minimum Principle (PMP) optimization-based energy management control strategy is developed to evaluate the energy consumption of the electrified vehicles in both charge-depleting (CD) and charge-sustaining (CS) modes. The results show that across different electrified vehicle architectures, the vehicles’ fuel economy using the WLTP cycle in CS mode substantially decreases compared to the NEDC cycle. Moreover, in CD mode, the battery needs to deliver more power in WLTP cycle compared to the NEDC to meet electric-only range requirement.&lt;/div&gt;&lt;/div&gt;
Observation of a New Type of Negative Ion in Superfluid Helium (2006)

Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation Ambarish Ghosh, Humphrey J. Maris; Observation of a New Type of Negative Ion in Superfluid Helium. AIP Conf. Proc. 7 September 2006; 850 (1): 155–158. https://doi.org/10.1063/1.2354649 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 ContentAIP Publishing PortfolioAIP Conference Proceedings Search Advanced Search |Citation Search
Abstract PR12: The glycan CA19-9 promotes pancreatitis and pancreatic cancer in mice (2019)

Abstract Glycosylation alterations are indicative of tissue inflammation and neoplasia, but whether these alterations contribute to disease pathogenesis is largely unknown. To study the role of glycan changes in pancreatic disease, we inducibly expressed human fucosyltransferase 3 and b1,3-galactosyltransferase 5 in mice, reconstituting the glycan sialyl-Lewis a, also known as carbohydrate antigen 19-9 (CA19-9). Notably, CA19-9 expression in mice resulted in rapid and severe pancreatitis with hyperactivation of epidermal growth factor receptor (EGFR) signaling. Mechanistically, CA19-9 modification of the matricellular protein fibulin-3 increased its interaction with EGFR, and blockade of fibulin-3, EGFR, or CA19-9 prevented EGFR hyperactivation in organoids. CA19-9–mediated pancreatitis was reversible and could be suppressed with CA19-9 antibodies. CA19-9 also cooperated with the KrasG12D oncogene to produce aggressive pancreatic cancer. These findings implicate CA19-9 in the etiology of pancreatitis and pancreatic cancer and nominate CA19-9 as a therapeutic target. This abstract is also being presented as Poster C16. Citation Format: Dannielle Engle, Herve Tiriac, Keith Rivera, Arnaud Pommier, Sean Whalen, Tobiloba Oni, Brinda Alagesan, Eun Lee, Melissa Yao, Matthew Lucito, Benjamin Spielman, Kenneth Yu, Robert Grutzmann, Daniela Aust, Phyllis Gimotty, Katherine Pollard, Ralph Hruban, Michael Goggins, Christian Pilarsky, Young Park, Darryl Pappin, Michael A. Hollingsworth, David Tuveson. The glycan CA19-9 promotes pancreatitis and pancreatic cancer in mice [abstract]. In: Proceedings of the AACR Special Conference on Pancreatic Cancer: Advances in Science and Clinical Care; 2019 Sept 6-9; Boston, MA. Philadelphia (PA): AACR; Cancer Res 2019;79(24 Suppl):Abstract nr PR12.
Low Noise Optically Tunable Opto-Electronic Oscillator With Fabry–Perot Etalon (2010)

A low noise optically tunable optoelectronic oscillator (OEO) scheme which uses a 1000 finesse Fabry-Perot etalon as the mode selector is demonstrated. The dependency of input optical frequency on RF frequency is theoretically analyzed and experimentally shown. The etalon-based OEO is compared with the standard OEO with RF filter and the results show higher RF frequency stability and lower phase noise. A single optical side band modulation technique is also used to improve the spectral purity and the results are compared with the double side band modulation technique. Low noise operation of an optically tunable OEO is achieved by using optical single side band modulation.
Human Endothelin Receptors ETA and ETB Expressed in Baculovirus‐Infected Insect Cells (1997)

We expressed human endothelin receptors, ET(A) and ET(B), in insect Sf9 cells infected by recombinant baculoviruses that contained the respective cDNAs. Ligand-binding experiments showed that the two expressed receptors have the same affinities as observed for the receptors in mammalian cells, i.e. the ET(A) receptor showed an affinity order of ET-1 > or = ET-2 >> ET-3, and the ET(B) receptor remained nonselective for three isopeptide ligands. The ET(B) receptor was purified by affinity chromatography with K9-biotinyl-ET-1 without losing the ligand-binding activity from the membrane of infected Sf9 cells. Protein chemical analysis of the purified ET(B) receptor showed that it is glycosylated, and that the N-terminal 38-amino-acid peptide is susceptible to proteolytic digestion, resulting in a small 35-kDa receptor like that found in the human placenta. Surprisingly, the infected and unlysed cells showed a strong intracellular Ca2+ concentration increase ([Ca2+]i), which was generated by a unique signal-transduction pathway consisting of the insect GTP-binding protein and human endothelin receptors expressed in the late phase of virus infection. Due mainly to an efficient expression (over 200,000 receptors/cell), to a low background owing to no endogenous homolog receptor in insect Sf9 cells, and to a sensitive fluorescent reagent Fura-2, this insect Sf9 cell system can detect the [Ca2+]i induced by picomolar levels of endothelin-receptor. We propose that this highly sensitive system be used to screen for potential antagonists/agonists of endothelin receptors.
Automatic 14-plane slice-alignment method for ventricular and valvular analysis in cardiac magnetic resonance imaging (2014)

Background Cardiac MRI examinations for valvular heart diseases have recently been a focus of attention [1]. However, the slice-alignment settings for valvular heart diseases are complex, difficult, and time-consuming operations. The purpose of this study is to develop an advanced automatic slice-alignment method that simultaneously detects the six left-ventricular planes (vertical long-axis, horizontal long-axis, short-axis, 4-chamber, 2-chamber, and 3-chamber views), the four right-ventricular planes (short-axis, 4-chamber, 2-chamber, and 3-chamber views), and also the four cardiac valvular planes (LVOT, RVOT, aortic valve, and pulmonary valve views) by extension of a previous work [2]. “’How I do’ CMR in valvular heart disease”, http://www.scmr.org.
3P172 Size and Shape of Fibroblast Cells Growing on a Micro Pillar(12. Cell biology,Poster) (2013)

V 1 , a water soluble domain of V-ATPase (rotary ATPase) is a rotary motor protein and the minimal rotary unit of V 1 is A 3 B 3 D. The rotor D-subunit is likely considered to be a structural analog of -subunit of F 1 although it lacks a globular domain unlike -subunit. To investigate how the lack of a globular domain affects on the rotary motion of V 1 , we performed a single molecule experiment and measured the torque of A 3 B 3 D. We found that A 3 B 3 D produced significantly low torque compared with V 1 , and recovered the high torque value only when globular shaped F-subunit was fused with D-subunit. The torque was measured precisely by using the fluctuation theorem that is the recently proposed method in the field of nonequilibrium statistical mechanics.
Spontaneous Lumbar Curve Correction Following Vertebral Body Tethering of Main Thoracic Curves (2022)

Therapeutic Level III . See Instructions for Authors for a complete description of levels of evidence.
Integrated Geomechanical and Fault Activation Modeling of the Wasia Reservoir: A Study Focused on Ground Uplift, Stability Analysis, and CO 2 Leakage (2021)

The excessive burning of the biomass materials and hydrocarbons produces more carbon dioxide than the nature can absorb. The increase in the CO2 concentration in the atmosphere is also due to the excessive deforestation and increased industrialization. The extra CO2 in the atmosphere will contribute to the global warming by absorbing and re-emitting the infrared radiations from the sun. Carbon dioxide storage in underground sedimentary reservoirs is one of the possible options that can help in mitigating the effect of global warming. During the geological carbon dioxide storage process, CO2 is injected at higher injection pressure to the underground sedimentary reservoir, which causes the base pore pressure of the reservoir to increase excessively. Any possible injection of CO2 near to the already existing fault can activate the fault and can cause the leakage of the stored carbon dioxide to the overburdened potable water layers and to the atmosphere. In this paper, an integrated geomechanical and fault activation modeling study is performed for the Wasia reservoir in Saudi Arabia. During the geomechanical modeling process, a fault passing through the Wasia and Aruma geological layers is also considered. The pore pressure buildup and ground uplift were calculated during carbon dioxide injection into the reservoir for the case of absence of a fault across the reservoir, as well as the case with a fault. The Mohr-Coulomb failure criterion was utilized to perform the stability analysis of the reservoir for the case of absence of a fault across the reservoir, as well as the case with a fault. The integrated geomechanical and fault activation modeling performed in the current study has provided estimates for the safe injection parameters of CO2 based on the magnitudes of the reservoir pore pressure and stresses in the reservoir.
Trust4All: a trustworthy middleware platform for component software (2007)

Abstract:- Trust plays an important role in a software system, especially when the system is component based and varies due to component joining and leaving. How to manage trust in such a system is crucial for an embedded device, such as a mobile phone. This article introduces a trustworthy middleware architecture that can manage trust in an autonomic way through adopting a number of algorithms for trust assessment and maintenance with regard to software component download and execution.
Reliability-Aware Fog Resource Provisioning for Deadline-Driven IoT Services (2018)

Rapid growth of Internet of Things (IoT) services with different service level agreement (SLA) requirements has called for offloading computing tasks from the resource constrained IoT devices to the remote cloud. The growing number of IoT devices is exacerbating the links between IoT devices and the cloud. Furthermore, many services (e.g., health and disaster response) require fast service response and immediate data analytics, thus posing a great challenge to the remote cloud. Fog computing provides the solution by bringing computing resources to the edge of the network to assume substantial computing tasks. However, the resource failures during service processing should not be overlooked because they can greatly degrade service performance. In our work, we investigate the fog resource provisioning problem for the deadline-driven IoT services to minimize the system cost considering the probability of resource failures. We formulate the problem as an integer linear programming (ILP) model, and then design a Weighted Best Fit Decreasing (WBFD) algorithm with low computational complexity. Simulation results validate that our proposed algorithm performs close to the optimal solutions of ILP.
The medial ligaments and the ACL restrain anteromedial laxity of the knee (2020)

The dMCL is the largest medial restraint to tibial external rotation in extension. Therefore, following a combined ACL + MCL injury, AMRI may persist if there is inadequate healing of both the sMCL and dMCL, and MCL deficiency increases the risk of ACL graft failure.
Video surveillance: past, present, and now the future [DSP Forum] (2013)

Video surveillance is a part of our daily life, even though we may not necessarily realize it. We might be monitored on the street, on highways, at ATMs, in public transportation vehicles, inside private and public buildings, in the elevators, in front of our television screens, next to our baby?s cribs, and any spot one can set a camera.
Statistical Encoding Model for a Primary Motor Cortical Brain-Machine Interface (2005)

A number of studies of the motor system suggest that the majority of primary motor cortical neurons represent simple movement-related kinematic and dynamic quantities in their time-varying activity patterns. An example of such an encoding relationship is the cosine tuning of firing rate with respect to the direction of hand motion. We present a systematic development of statistical encoding models for movement-related motor neurons using multielectrode array recordings during a two-dimensional (2-D) continuous pursuit-tracking task. Our approach avoids massive averaging of responses by utilizing 2-D normalized occupancy plots, cascaded linear-nonlinear (LN) system models and a method for describing variability in discrete random systems. We found that the expected firing rate of most movement-related motor neurons is related to the kinematic values by a linear transformation, with a significant nonlinear distortion in about 1/3 of the neurons. The measured variability of the neural responses is markedly non-Poisson in many neurons and is well captured by a "normalized-Gaussian" statistical model that is defined and introduced here. The statistical model is seamlessly integrated into a nearly-optimal recursive method for decoding movement from neural responses based on a Sequential Monte Carlo filter.
A laboratory model of marine snow: Preparation and characterization of porous fiber particles (2015)

A method is described to prepare laboratory models of marine snow flocks using textile fibers to facilitate settling and mass transfer experiments under hydrodynamically well-defined conditions. A simple and effective roll-agglomeration process is introduced to fabricate macro-scale (up to centimeter-size) fiber particles, with predefined porosity, permeability, and excess density. Hydrodynamic similarity with natural marine snow aggregates was confirmed by measurements of porosity, permeability and settling velocity measurements. The assessment is completed by an analysis of the performance of the fabrication method. The fiber particles generated via this method can be used to advance our understanding of the hydrodynamics underlying settling dynamics and the associated mass transfer.
The Improvement of Power Quality in an ac-ac Direct Matrix Converter by Using Hybrid Filters (2022)

The present study aims to improve the power quality of an ac-ac direct matrix converter using hybrid filters. In this paper, a direct matrix converter (without a dc capacitor) is investigated. The studied case causes current and voltage harmonics at the input and output of the converter. To improve that, in this paper, the harmonics are identified and suitable active, passive and hybrid filters are designed to remove the harmonics to improve the power quality. Finally, to evaluate the performance of the proposed strategy in a quasi-real environment, the matrix converter with the different filters is simulated in MATLAB software. The results prove that the proposed hybrid filter can improve the power quality to a large extent, almost 50%.
Analysis of Rayleigh-Lamb Modes in Soft-solids with Application to Surface Wave Elastography (2015)

The goal of Surface Wave Elastography (SE) techniques is to estimate the shear elasticity of the sample by measuring the surface wave speed. In SE the thickness of the sample is often assumed to be infinite, in this way, the surface wave speed is directly linked to the sample's shear elasticity. However for many applications this assumption is not true. In this work, we study experimentally the Rayleigh-Lamb modes in soft solids of finite thickness to explore the optimal conditions for SWE. Experiments were carried out in three tissue mimicking phantoms of different thicknesses (10 mm, 20 mm and 60 mm) and same shear elasticity. The surface waves were generated at the surface of the phantom using piston attached to a mechanical vibrator. The central frequency of the excitation was varied between 60 Hz to 160 Hz. One component of the displacement field generated by the piston was measured at the surface and in the bulk of the sample trough a standard speckle tracking technique using a 256 element, 7.5 MHz central frequency linear array and an ultrasound ultrafast electronics. Finally, by measuring the phase velocity at each excitation frequency, velocity dispersion curves were obtained for each phantom. The results show that instead of a Rayleigh wave, zero order symmetric (S0) and antisymmetric (A0) Lamb modes are excited with this type of source. Moreover, in this study we show that due to the near field effects of the source, which are appreciable only in soft solids at low frequencies, both Lamb modes are separable in time and space. We show that while the Ao mode dominates close the source, the S0 mode dominates far away.