gebhart/patrepeval huggingface dataset:
Beam quality analysis and optimization in an adiabatic low mode tapered fiber beam combiner (2010)

We study tapered fiber bundle based beam-combining structures that closely maintain their lowest supermodes in order to optimize the output beam quality. A method for efficiently producing structures with high beam quality is proposed. The method is based on monitoring the output powers of the tapered fiber bundle during fabrication and evaluating the beam properties at the central portion based on symmetry considerations. The method is demonstrated experimentally and supported by theoretical analysis. Several seven-fiber combiner configurations are demonstrated. The obtained beam qualities are close to the theoretical limits, as dictated by the brightness conservation law.
A Cascade Approach to Neural Abstractive Summarization with Content Selection and Fusion (2020)

Logan Lebanoff, Franck Dernoncourt, Doo Soon Kim, Walter Chang, Fei Liu. Proceedings of the 1st Conference of the Asia-Pacific Chapter of the Association for Computational Linguistics and the 10th International Joint Conference on Natural Language Processing. 2020.
2P1-D12 Comparison of Position Control Performances of Spherical Ultrasonic Motor (2010)

In this paper, we investigate the position control of spherical ultrasonic motor (SUSM). The generated torque of SUSM is influenced by the phase difference and the driving frequency of applied AC voltages. Therefore, the control strategy is classified into three types. We formulate the position control rules for SUSM based on the three types of control variables, and investigate the performances experimentally.
A simple cavity method which increases bandwidth of cylindrical dipole antennas to almost 100% (2022)

Abstract A broadband dipole antenna and an integrated cavity section responsible for increasing bandwidth are introduced, designed, and successfully fabricated. This simple and highly effective cavity is added at the dipoles input, where the concentric coaxial feed line becomes its inner conductor, and the dipoles cylinder becomes its outer conductor. This coaxial‐fed dipole antenna could be easily fabricated due to its simple mechanical structure. A version of this type of dipole antenna, with a total length of less than 38 cm (0.44 λ ) and a radius of about 5 cm, is designed once symmetrically and once with an asymmetrical down‐tilted radiation pattern. The new proposed cavity part can increase the antenna's bandwidth up to 100%, which is highly superior compared to conventional counterparts. Furthermore, the antenna's radiation pattern is stable throughout the bandwidth. The minimum realized gain at the solid angle of θ (for instance, θ between 90 and 120°) is perfectly above zero within the frequency range. The antenna measurement results are in acceptable agreement with the simulations.
Building Robust Nomadic Wireless Mesh Networks Using Directional Antennas (2008)

Recently, wireless mesh technology has been used for military applications and fast recovery networks, referred to as nomadic wireless mesh networks (NWMNs). In such systems, wireless routers, termed nodes, are mounted on top of vehicles or vessels, which may change their location according to application needs; and the nodes are required to establish a reliable wireless mesh network. For improving network performance, some vendors use directional antennas, and the mesh topology comprises of point-to-point connections between adjacent nodes. The number of point-to-point connections of a node is upper-bounded by the number of directional radios it has, which is typically a small constant. This raises the need to build robust (i.e., two-node/edge- connected) mesh networks with bounded node degree, regardless of node locations. In this paper, we present simple elegant schemes for constructing such efficient and robust wireless mesh networks with provably small constant degree bounds. Our extensive simulations show our schemes build robust and efficient topologies for various settings with node degree bounded by 4 and small hop-count distance between nodes and gateways.
P2‐155: Quantifying the number of crossing fibers in the aging brain using dki tractography (2015)

Tractography is a technique that visualizes white matter (WM) fibers based on diffusion MRI data. A shortcoming of DTI is the inability to directly resolve fiber crossings. Here we reconstructed WM tracts using diffusional kurtosis imaging (DKI), which is an advanced diffusion MRI technique that quantifies the non-Gaussianity of diffusion and, allows for the detection of crossing fibers. Because aging is associated with decreased microstructural complexity in the brain, we hypothesize that this would be reflected by a decrease in the number of detected crossing fibers. The study sample is composed of 48 cognitively intact older adults (age = 68.0 ± 5.6y, range = 60-80y; MoCA score = 26.9 ± 1.8; 62.5% Female; 95.8% White). DKI was acquired for all individuals on a 3T Siemens Tim Trio. All diffusion metrics were calculated with DKE (Diffusional Kurtosis Estimator). Using in-house software, the diffusion orientation distribution function (dODF) was constructed for every voxel. The dODF quantifies the extent of diffusion as a function of direction. The local maxima of the dODF provide estimates for the fiber directions, and the number of local maxima determines the number of crossing fibers detected. The JHU WM atlas was used to identify the regions of interest. There was a significant negative correlation (r=-0.46, p<0.05) between the number of detected crossing fibers and age (Fig. 1). To verify our measurements, we compared the number of crossing fibers in areas with different tract morphologies: the corona radiata (CR) and the genu of the corpus callosum. As expected, more crossing fibers were detected in the CR, a region with fiber orientation heterogeneity, than in the more homogeneous genu (Table 1). Figure. 2 shows the fiber complexity at the level of the superior CR calculated with both DKI and DTI. Since many fibers cross the superior longitudinal fasciculus here a large part remains undetected by DTI. Advanced diffusion MRI techniques like DKI enable detection of fibers in heterogeneous regions with crossing fibers. The number of fiber crossings detected with diffusion MRI decreases with age. This may be relevant for the interpretation of tractography in older subjects.
O6C-20-nor-SalA is a stable and potent KOR agonist (2017)

Salvinorin A (SalA) is a potent and selective agonist of the kappa-opioid receptor (KOR), but its instability has frustrated medicinal chemistry efforts. Treatment of SalA with weak bases like DBU leads to C8 epimerization with loss of receptor affinity and signaling potency. Here we show that replacement of C20 with H and replacement of O6 with CH2 stabilizes the SalA scaffold relative to its C8 epimer, so much so that epimerization is completely suppressed. This new compound, O6C-20-nor-SalA, retains high potency for agonism of KOR.
The Design of Predictive Controller for Aero-Engine Based on Self-Tuning Model (2019)

Abstract A Min-Max structure combined with several linear limit controllers are utilized for traditional aero-engine safety control, which is complex and conservative, therefore a multivariable control system based on self-tuning model predictive control method is proposed that owns the ability to handle constraints directly. The control system consists of two parts. One is called prediction model part and the other is called control strategy part. In the prediction model part, firstly, the nonlinear component-level model of the aero-engine is converted into a linear state space expression. Secondly, the state space expression will be combined with the simplified actuator models so that the prediction model can partly reflect the effects of the actuators. What’s more, the process of the linearization is repeated during every control period, so that the control system will renew the prediction model at different operation points in the flight envelop. The control strategy part computes the control variables online along with the aero-engine feedback data, which are determined by solving a quadratic programming problem with constraints in finite time domain. In this way, the calculation burden of linear constrained optimization is less than that of a nonlinear optimization problem, so the proposed method is suitable for the application in aero-engine. Considering the effects of mismatch situation that exists between the prediction model and actual aero-engine, the feedback correction is introduced in the system. In this paper, a turbofan gas turbine engine with an afterburner is chosen to verify the effectiveness of the multivariable control system. The results of the simulation show that the aero-engine can operate well at different working conditions.
Preparation of SOFC Anodes by Electrodeposition (2007)

Anodes for solid oxide fuel cells (SOFCs) have been prepared by electrodeposition of either Co or Ni into a layer of porous yttria-stabilized zirconia (YSZ), thick. The YSZ, having 65% porosity, was prepared by tape casting with graphite pore formers and was attached to the dense YSZ electrolyte. After adding by impregnation of aqueous solutions of , followed by calcination at , the porous YSZ was made conductive by exposing it to -butane at to form a coating of carbon. As much as metal could be added to the porous layers, while the carbon could then be removed by exposing the anode to humidified at SOFC operating temperatures. The ohmic losses in cells containing Co or Ni were unaffected by heating to . Finally, a cell with Cu and Co was prepared by electrodeposition of Cu onto electrodeposited Co. No carbon formation was observed on the anode following exposure to dry methane at .
Hydrogels in Stereolithography (2005)

The use of stereolithography (SL) for fabricating complex three-dimensional (3D) tissue engineered scaffolds of aqueous poly(ethylene glycol) (PEG) hydrogel solutions is described. The primary polymer used in the study was PEG-dimethacrylate (PEG-dma) with an average molecular weight (MW) of 1000 in distilled water with the photoinitiator Irgacure 2959 (I-2959). Successful layered manufacturing (LM) with embedded channel architecture required investigation of the photopolymerization characteristics of the PEG solution (measured as hydrogel thickness or cure depth) as a function of photoinitiator concentration and laser energy dosage for a specific photoinitiator type and polymer concentration in solution. Hydrogel thickness was a strong function of PI concentration and energy dosage. Curves of hydrogel thickness were utilized to successfully plan, perform, and demonstrate layered manufacturing of highly complex hydrogel scaffold structures, including structures with internal channels of various orientations. Successful fabrication of 3D, multi-layered bioactive PEG scaffolds containing cells was accomplished using a slightly modified commercial SL system (with 325 nm wavelength laser) and procedure. Human dermal fibroblast (HDF) cells were encapsulated in PEG hydrogels using small concentrations (~ 5 mg/ml) of acryloyl-PEG-RGDS (MW 3400) added to the photopolymerizable PEG solution to promote cell attachment. HDF cells were combined with the PEG solution, photocrosslinked using SL, and successfully shown to survive the fabrication process. The combined use of SL and photocrosslinkable biomaterials such as PEG makes it possible to fabricate complex 3D scaffolds that provide site-specific and tailored mechanical properties (i.e., multiple polymer materials) with a polymer matrix that allows transport of nutrients and waste at the macroscale and facilitates cellular processes at the microscale through precisely placed bioactive agents.
Transport of Phospholipid in Silicone Hydrogel Contact Lenses (2011)

Characterization of the transport and release of phospholipids from a silicone hydrogel contact lens is required to assess the possible use of these lenses for phospholipid delivery to increase patient comfort. Contact lenses of silicone hydrogel composition were loaded with varying amounts of radiolabeled 1,2-dimyristoyl-sn-glycero-3-phosphocholine (DMPC) from a solution of n-propanol. These lenses were eluted at 35°C into artificial tear fluid (ATF) or ATF containing varying amounts of DMPC. The amount of DMPC loaded into a lens is a linear function of the time of exposure to the DMPC/propanol solution. The initial rate of elution into ATF appears to be diffusion controlled for at least 10 h and is proportional to the amount of DMPC loaded. The elution rate decreases as the DMPC concentration in the ATF increases. The ease of loading and the controllable release of DMPC from silicone hydrogels presents the possibility of using such lenses to counter eye discomfort caused by inherently low levels of phospholipid in tears.
In-source H/D exchange and ion-molecule reactions using matrix assisted laser desorption/ionization Fourier transform ion cyclotron resonance mass spectrometry with pulsed collision and reaction gases (2002)

Controlled in-source ion-molecule reactions are performed for the first time in an external matrix assisted laser desorption ionization (MALDI) source of a Fourier transform ion cyclotron resonance mass spectrometer. The MALDI source with a hexapole ion guide that was originally designed to incorporate pulsed gas to collisionally cool ions (Baykut, G.; Jertz, R.; Witt, M. Rapid Commun. Mass Spectrom. 2000, 14, 1238-1247) has been modified to allow the study of in-source ion-molecule reactions. Upon laser desorption, a reaction gas was introduced through a second inlet and allowed to interact with the MALDI-generated ions trapped in the hexapole ion guide. Performing ion-molecule reactions in the high pressure range of the ion source prior to analysis in the ion cyclotron resonance (ICR) cell allows to maintain the ultra high vacuum in the cell which is crucial for high mass resolution measurements. In addition, due to the reaction gas pressure in the hexapole product ion formation is much faster than would be otherwise possible in the ICR cell. H/D exchange reactions with different peptides are investigated, as are proton-bound complex formations. A typical experimental sequence would be ion accumulation in the hexapole ion guide from multiple laser shots, addition of cooling gas during ion formation, addition of reaction gas, varied time delays for the ion-molecule reactions, and transmission of the product ions into the ICR cell for mass analysis. In this MALDI source H/D exchange reactions for different protonated peptides are investigated, as well as proton-bound complex formations with the reaction gas triethylamine. Amino acid sequence, structural flexibility and folding state of the peptides can be seen to play a part in the reactivity of such ions.
Glatiramer Acetate Depot (extended-release) Phase IIa one-year study in patients with Relapsing-remitting Multiple Sclerosis: Safety, tolerability and efficacy – NEDA Analysis (P6.359) (2018)

Assess the safety, tolerability and efficacy of GA Depot in RRMS patients.
High gain semiconductor optical amplifier — Laser diode at visible wavelength (2016)

We reported on the first experimental demonstration of a two-section semipolar InGaN-based laser diode with monolithically integrated semiconductor optical amplifier (SOA-LD). The onset of amplification effect was measured at 4V SOA bias (V <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">SOA</sub> ). The SOA-LD shows a large gain of 5.32 dB at V <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">SOA</sub> = 6 V.
Differentiating congestion vs. random loss: a method for improving TCP performance over wireless links (2002)

Previous research has focussed on the problems associated with TCP performance in the presence of wireless links and ways to improve its performance. We present an extension to TCP Santa Cruz which improves TCP performance over lossy wireless links. TCP has no mechanism to differentiate random losses on the wireless link from congestion, and therefore treats all losses as congestive. We present a simple method in which our protocol is able to differentiate these random losses, thereby avoiding the rate-halving approach taken by standard TCP whenever any loss is detected. We compare the performance of our protocol against TCP Reno and demonstrate higher throughput and lower end-to-end delay with our approach.
Visual Web Information Extraction with Lixto (2001)

We present new techniques for supervised wrapper generation and automated web information extraction, and a system called Lixto implementing these techniques. Our system can generate wrappers which translate relevant pieces of HTML pages into XML. Lixto, of which a working prototype has been implemented, assists the user to semi-automatically create wrapper programs by providing a fully visual and interactive user interface. In this convenient user-interface very expressive extraction programs can be created. Internally, this functionality is reflected by the new logicbased declarative language Elog. Users never have to deal with Elog and even familiarity with HTML is not required. Lixto can be used to create an &quot;XML-Companion&quot; for an HTML web page with changing content, containing the continually updated XML translation of the relevant information. 1
A New Current Mode Sine Wave Inverter (1982)

A new sine wave inverter topology is presented. Its current mode operation is described, and its performance is compared to that of the more conventional series, or voltage mode, inverter. It is shown that higher frequency and more efficient operation is possible. A parity simulation of the new circuit is performed and parametric operating data are presented in a form useful for design purposes. The simulation results are verified on a 250 W 10-20 kHz hardware version of the current mode sine wave inverter.
Affect analysis of text using fuzzy semantic typing (2002)

We propose a convenient fusion of natural-language processing and fuzzy logic techniques for analyzing affect content in free text; our main goals are fast analysis and visualization of affect content for decision-making. The primary linguistic resource for fuzzy semantic typing is the fuzzy affect lexicon, from which other important resources are generated, notably the fuzzy thesaurus and affect category groups. Free text is tagged with affect categories from the lexicon, and the affect categories' centralities and intensities are combined using techniques from fuzzy logic to produce affect sets fuzzy sets that represent the affect quality of a document. We show different aspects of affect analysis using news stories and movie reviews. Our experiments show a very good correspondence of affect sets with human judgments of affect content. We ascribe this to the effective representation of ambiguity in our fuzzy affect lexicon, and the ability of fuzzy logic to deal successfully with the ambiguity of words in natural language. Planned extensions of the system include personalized profiles for Web-based content dissemination, fuzzy retrieval, clustering and classification.
On the power of hardware transactional memory to simplify memory management (2011)

Dynamic memory management is a significant source of complexity in the design and implementation of practical concurrent data structures. We study how hardware transactional memory (HTM) can be used to simplify and streamline memory reclamation for such data structures. We propose and evaluate several new HTM- based algorithms for the “Dynamic Collect” problem that lies at the heart of many modern memory management algorithms. We demonstrate that HTM enables simpler and faster solutions, with better memory reclamation properties, than prior approaches. Despite recent theoretical arguments that HTM provides no worst-case advantages, our results support the claim that HTM can provide significantly better common-case performance, as well as reduced conceptual complexity.
Polyoxometalates in Catalytic Photochemical Hydrocarbon Functionalization and Photomicrolithography (1993)

The energetic and mechanistic features of catalytic photochemical oxidation of organic substrates by polyoxometalates and then the applications of this chemistry to catalytic alkane functionalization, microlithography, and catalytic dehalogenation are succinctly reviewed Three sets of experiments that affect these areas are presented, and the future development of catalytic photoredox processes effected by polyoxometalates is discussed The excited state of decatungstate, W10O324- (1), and the conventional ground-state radical, tert-BuO·, have similar reactivities and lead to similar products upon reaction with various organic substrates. The simultaneous photooxidation of cyclooctane and tetrahydrofuran leads to some cross-coupling product and a complex organic product distribution that is consistent to a large degree with intermediate freely diffusing radicals. Laser flash photolysis measurements (355-nm frequency tripled Nd:YAG output of the heretofore unreported emission of 1 (λmax = 615 nm) establish that the lifetime of the excited state (1*) is 21 ± 3 ps at 25 °C in 9:1 acetonitrile—water solution.
A summary of results in direct spatial antenna modulation (DSAM) (2010)

Antenna modulation has received growing attention recently, with several published examples. This paper summarizes recent results in Direct Spatial Antenna Modulation (DSAM), with an emphasis on quantitative performance. Antenna modulation can be used to replace conventional modulator architectures, with potential savings in size, weight, and power (SWAP). DSAM is distinct from other antenna modulation approaches since it is focused on using exclusively spatial excitation differences rather than other more conventional approaches.
Optimization of reflective bistable twisted nematic liquid crystal displays (1999)

The contrast ratio of reflective bistable twisted nematic displays are optimized by means of a parameter space approach. By plotting the contrast ratio as a function of the twist angle and thickness-birefringence product of the display, the regions where the display shows the best contrast ratio are clearly shown. Both the absolute reflectance and wavelength dispersion of two bistable twisted states are investigated. It is confirmed that high contrast ratio of over 100 and reflectance of 100% with polarized light input are possible for such reflectance bistable displays.
Differential current-mode clock distribution (2015)

In this paper, we present a differential current-mode pulsed flip-flop (DCMPFF) for low-power clock distribution using a representative 45nm CMOS technology. Experimental results show that the DCMPFF has 47% faster clock-to-output (CLK-Q) delay than a traditional voltage-mode (VM) pulsed flip-flop. When the DCMPFF is integrated with a differential current-mode clock distribution, the differential technique saves 62% and 17% power compared to a conventional VM and a previous current-mode (CM) clock network, respectively.