Miracle-dz/UniFAR-FTUs huggingface dataset:
Ultra-fine UV photoluminescence emission at room temperature from an individual ZnO nanorod

Highly-crystalline zinc-oxide (ZnO) nanorods and nanowires with hexagonal cross sections are grown on a sputtered ZnO thin film as buffer layer, using physical vapor deposition (PVD) technique in the absence of any catalyst. For the experimental setup, a double tubes furnace at atmospheric pressure is utilized. The structural characteristics of the samples are studied by using field-emission scanning electron microscopy (FESEM), energy dispersive spectroscopy (EDS) and X-ray diffractometry (XRD). The optical properties of grown nanorods are investigated by using micro photoluminescence (PL) spectroscopy. The results show that high-quality ZnO nanostructures can be obtained by control of the super saturation conditions during the growth process while the XRD and EDS results reveal that the grown nanorods are single-phase hexagonal ZnO with a perfect elemental stoichiometry. Micro PL measurement of a single nanorod results in fine spectra, in which, it exhibits a sharp ultraviolet (UV) emission bands, corresponding to the near-band-edge (NBE) emission of crystalline ZnO, without any peak in the green or the orange region, which is normally related to crystal defects.
Energetic stability and magnetic properties of MnO in the rocksalt, wurtzite, and zinc-blende structures: Influence of exchange and correlation

We investigate the relative energetic stability and the magnetic properties of MnO in the rocksalt rs , wurtzite wz , and zinc-blende zb structures using density-functional theory with different approaches to exchange and correlation: the semilocal generalized-gradient approximation GGA , the GGA+U method with an additional on-site interaction U, and the spatially nonlocal hybrid functional HSE03 that accounts for screened exchange. In contradiction to experimental observations, GGA predicts the fourfold coordinated zb and wz structures to be energetically favorable in comparison to the sixfold-coordinated rs geometry. The use of the hybrid functional HSE03 improves the energetic stability of the rs structure but still fails to determine the correct ground state of MnO. This deficiency can be overcome by applying the GGA+U method with U 4 eV. The computed total energies are used to fit the nearestand next-nearest-neighbor exchange coupling constants of a Heisenberg model Hamiltonian. Only for the GGA+U functional with U 4 eV, the coupling constants as well as the resulting critical temperature for the magnetic phase transition are in agreement with measured quantities. Therefore, we conclude that an appropriate treatment of the correlation effects in MnO and similar compounds is necessary not only for the electronic but also for the structural properties.
Olanzapine: A potent agonist at the hM4D(Gi) DREADD amenable to clinical translation of chemogenetics

The atypical antipsychotic olanzapine is a potent activator of a mutated muscarinic receptor used for chemogenetic inhibition. Designer receptors exclusively activated by designer drugs (DREADDs) derived from muscarinic receptors not only are a powerful tool to test causality in basic neuroscience but also are potentially amenable to clinical translation. A major obstacle, however, is that the widely used agonist clozapine N-oxide undergoes conversion to clozapine, which penetrates the blood-brain barrier but has an unfavorable side effect profile. Perlapine has been reported to activate DREADDs at nanomolar concentrations but is not approved for use in humans by the Food and Drug Administration or the European Medicines Agency, limiting its translational potential. Here, we report that the atypical antipsychotic drug olanzapine, widely available in various formulations, is a potent agonist of the human M4 muscarinic receptor-based DREADD, facilitating clinical translation of chemogenetics to treat central nervous system diseases.
X-Ray Diffractometer for Studies on Molecular-Beam-Epitaxy Growth of III–V Semiconductors

An X-ray diffractometer connected with a molecular-beam epitaxy (MBE) system has been constructed for in situ studies on the growing surfaces of III–V compound semiconductors. This diffractometer is based on the (4+2) type, which has four axes for orienting the sample and two axes for positioning the detector. In addition, it is equipped with an axis for rotating the receiving slit about the normal of the slit plane to align the resolution of the receiving slit properly for the surface X-ray diffraction measurement. For the alignment of the sample and the entire setup with respect to the X-ray beam, an XYZ-stage and an adjustable base plate are available. X-rays enter and leave the chamber through two Be windows welded directly to the MBE chamber. A graphite sheet which can be heated up to 250°C is placed along the inside of the Be windows to protect the Be windows from being coated with evaporated materials. Preliminary data are presented to demonstrate the feasibility of static and dynamic measurements of growing surfaces using this instrument.
Focal switching of partially polarized Gaussian Schell-model beams passing through a system with the aperture and astigmatic lens separated

On the basis of the beam coherence–polarization (BCP) matrix approach, the focal switching of partially polarized Gaussian Schell-model (PGSM) beams is studied. Our main attention is focused on the effect of astigmatism of the lens, partial coherence and polarization on the behaviour of the focal switch. It is shown that the astigmatism and auto-correlation affect the focal switch. For the aberration-free case there is no focal switching of PGSM beams. Only when the astigmatic coefficient C6 is greater than a certain value can the focal switching take place. The influence of cross-correlation and polarization on the focal switch is demonstrated, after inserting a polarizer.
The MyOcean IBI Ocean Forecast and Reanalysis Systems: operational products and roadmap to the future Copernicus Service

The MyOcean IBI-MFC (Monitoring & Forecasting Centre) has been providing continuous daily ocean model estimates and forecasts for the Iberia–Biscay–Ireland (IBI) regional seas since 2011. The operational IBI Ocean Forecast Service is based on a NEMO model application that includes high-frequency processes required to characterize regional scale marine processes. Since June 2014, a new IBI reanalysis, comprising both physical and biogeochemical components, covering the time period 2002–2012 has also been available. This paper provides an end-to-end description of these IBI model systems and presents a summary of the scientific validation assessments carried out with the derived operational products. The validation statistics suggest that the systems capture major synoptic and mesoscale ocean circulation features observed in the IBI region. Finally, an IBI roadmap towards the future EU Copernicus Service is outlined, providing a look ahead to future IBI model and data-assimilation developments and operational novelties.
Optimal Fuzzy Control for a Class of Nonlinear Systems

The paper presents conditions suitable in design giving quadratic performances to stabilizing controllers for given class of continuous-time nonlinear systems, represented by Takagi-Sugeno models. Based on extended Lyapunov function and slack matrices, the design conditions are outlined in the terms of linear matrix inequalities to possess a stable structure closest to LQ performance, if premise variables are measurable. Simulation results illustrate the design procedure and demonstrate the performances of the proposed control design method.
Wavefront engineering with photonic crystal structures in slab waveguides

Light can interact with periodic microstructures, also known as photonic crystals, in many ways. In this talk we will consider the use of photonic crystals to modify the wavefront and wavevector direction of waves propagating in photonic crystal slab waveguides and will compare these effects with those at arise from modification of the Poynting vector. We will discuss the underlying principles and will consider applications of these devices, in particular for wavelength demultiplexing. We will illustrate our investigation by considering the design of 1-D and 2-D photonic crystal superprism demultiplexers, and show that compact (<4 mm chip size) and high resolution (100 GHz) multichannel devices can be obtained.
Pilot-vehicle analysis of multiaxis tasks

In missions where high c ognitive and managerial requirements are placed on the p ilot, or where failures may significantly degrade one or more air- craft control axes, the pilot must divide his attention among several tasks. The pilot and sys- tem behavior in such divided attention conditions, and the combination of pilot ratings from single to multi-axis c onditions are treated using classical and optimal control models for the human in a com- plementary fashion. It is shown that the crossover frequency and closed-loop system performance for a given axis under divided attention will be less than full attention values while the remnant and the phase m argin will be greater, and that t he model-based trends are consistent with experiment. Also, the optimal control performance index used in the pilot and system behavioral modeling, when "calibrated" w ith s ingle-axis correlations, shows potential f or t he development of subjective rating estimates for multi-axis t asks.
High peak power high rep-rate pulsed fiber laser for marking applications

Fibre pulsed lasers are increasingly being adopted as the laser of choice in a number of industrial applications, such as micromachining, drilling and marking. In peak-power-driven applications, such as marking, it is essential to retain high peak powers (in excess of 2.5 to 5 kW) at high repetition rates in order to achieve faster character marking and increased throughput.
Performance characterization of the reflection grating arrays (RGA) for the RGS experiment aboard XMM

The Reflection Grating Spectrometer (RGS) aboard XMM is a large collecting area, dispersive soft x-ray spectrometer providing high resolution and a bandpass of 5-35 angstrom. We have built and characterized the two, nearly identical, flight model reflection grating arrays for the RGS instrument. Precision alignment and assembly of 182 grating elements into each array was performed at Columbia Astrophysics/Nevis Laboratory, and end-to-end X-ray calibration and testing were performed at the MPE-Panter facility. Preliminary results from the calibration are summarized, and reconciliation of those results with baseline optical design, simulations and error budgets are discussed.
Two-tailed asymptotic inferences for a proportion

This paper evaluates 29 methods for obtaining a two-sided confidence interval for a binomial proportion (16 of which are new proposals) and comes to the conclusion that: Wilson's classic method is only optimal for a confidence of 99%, although generally it can be applied when n≥50; for a confidence of 95% or 90%, the optimal method is the one based on the arcsine transformation (when this is applied to the data incremented by 0.5), which behaves in a very similar manner to Jeffreys’ Bayesian method. A simpler option, though not so good as those just mentioned, is the classic-adjusted Wald method of Agresti and Coull.
Nonlinear decomposition-and-denoising approach for removal of signal-dependent noise of a digital color camera

In a digital camera, several factors cause signal-dependency of additive noise. Many denoising methods have been proposed, but unfortunately most of them do not work well for the actual signal-dependent noise. To solve the problem of removing the signal-dependent noise of a digital camera, this paper presents a denoising approach via the nonlinear image-decomposition. In the nonlinear decomposition-and-denoising approach, at the first nonlinear image-decomposition stage, multiplicative image-decomposition is performed, and a noisy image is represented as a product of its two components so that its structural component corresponding to a cartoon approximation of the noisy image may not be corrupted by the noise and its texture component may collect almost all the noise. At the successive nonlinear denoising stage, intensity of the separated structural component is utilized instead of the unknown true signal value, to adapt the soft-thresholding-type denoising manipulation of the texture component to the signal dependency of the noise. At the final image-synthesis stage, the separated structure component is combined with the denoised texture component, and thus a sharpness-preserved denoised image is reproduced. The nonlinear decomposition-and-denoising approach selectively removes the signal-dependent noise of a digital camera without not only blurring sharp edges but also destroying visually important textures.
Revisiting the Issue of Solar Abundances

We revisit the issue of solar abundances and examine whether the updated abundances result in solar models that have structures that agree with the structure of the Sun as determined by helioseismology. We quantify the changes in opacity required to bring the models constructed with the newer solar abundances in agreement with the Sun.
An experimental investigation of concentrated suspension flows in a rectangular channel

An experimental adaptation of the well-known laser-Doppler anemometry technique is developed for measuring the velocity and concentration profiles in concentrated suspension flows. To circumvent the problem of optical turbidity, the refractive indices of the solid and liquid phases are closely matched. The residual turbidity, owing to small mismatches of the refractive indices, as well as impurities in the particles, allows a Doppler signal to be detected when a particle passes through the scattering volume. By counting the number of Doppler signals in a period of time, the local volume fraction is also measured. This new technique is utilized to study concentrated suspension flows in a rectangular channel. The general behavior of the suspension is that the velocity profile is blunted while the concentration profile has a maximum near the centre. Comparisons are made with theoretical predictions based on the shear-induced particle migration theory.
A DENSE GROUP OF GALAXIES IN SERPENS

During an investigation of faint galaxies being made at the Barnard Observatory of Vanderbilt University, an exceedingly compact group of six galaxies was found in the constellation Serpens. The plate on which they were found was one of a number of Jewett schmidt photographs sent to us by the Harvard College Observatory through the courtesy of Dr. Harlow Shapley. The group, including as its brightest member NGC 6027, falls within a circle 120" in diameter at :
Mean profiles for a passive scalar in wall-bounded flows from symmetry analysis

Based on the symmetry properties of the equations for a passive scalar in turbulent wall-bounded flows we derive the symmetry invariant mean profiles of the scalar. In a unifying framework we classify all of the coexisting profiles in terms of their invariance properties and derive analytical expressions for the different scaling laws of the mean profiles for velocity and passive scalars at Prandtl numbers of order unity. In addition to the well-known logarithmic law also algebraic and exponential profiles are found. The results are supported by extensive numerical simulations in channel and Couette flows as well as experiments on thermal boundary layers.
Investigation of the deep level involved in InGaN laser degradation by deep level transient spectroscopy

This paper reports an extensive analysis of the properties of the deep level responsible for the degradation of InGaN-based laser diodes. The analysis is based on combined optical measurements and Deep-Level Transient Spectroscopy (DLTS) investigation. Results indicate that stress induces a significant increase in threshold current of the devices, which is strongly correlated to the increase in the concentration of a deep level (DL) detected by DLTS. The DL involved in the degradation process is located 0.35–0.45 eV below the conduction band. 2D simulation indicates that degradation occurs within the quantum-well region.
VIBRATION CONTROL OF AN ELASTIC MANIPULATOR LINK

A single elastic link is modelled by the use of the Euler Bernoullin beam theory and mode summation techniques are used to solve the transient vibration problem. Cycloidal rise motion is used to drive the link. The spectrum of residual vibration amplitudes to the ratio of the natural frequency to rise motion frequency is obtained. It is shown that at certain values of the rise motion frequency, residual vibration is eliminated which can make the precise position control or precise tracking control of an elastic link possible
Single quantum wire semiconductor lasers

Single quantum wire GaAs/AlGaAs injection lasers were fabricated using organometallic chemical vapor deposition on V‐grooved GaAs substrates. The quantum wire active region has a crescent‐shaped cross section ∼100 A thick and less than 1000 A wide. Amplified spontaneous emission and lasing spectra of the quantum wire lasers exhibit effects due to transitions between quasi‐one‐dimensional subbands separated by ∼10 meV. Single quantum wire laser structures with tight optical confinement exhibited threshold currents as low as 3.5 mA for uncoated devices at room temperature.
The Development of Procedural and Conceptual Knowledge in Computational Estimation.

Children in Grades 4, 6, and 8 and adults estimated answers to multiplication problems. The problems varied in the number of digits: 1 x 2 (e.g., 8 x 18), 1 X 3 (e.g., 5 x 144), 2 x 2 (e.g., 22 x 91), and 2 x 3 (e.g., 45 x 164). Few children in Grade 4 could estimate. Most sixth and eighth graders provided reasonable estimates, however, even on difficult (e.g., 2 x 3) problems. Estimation performance improved with age, with adults producing more accurate estimates than children, but the most striking developmental changes were in the conceptual knowledge used to perform this estimation task. From Grade 6, students seemed to understand the role of the simplification principle in estimation. Children reduced complex problems through rounding and prior compensation to produce reasonable estimates. Only adults seemed to have a good grasp of the principle of proximity, however, understanding that it is important for the estimate to be reasonably close to the actual answer. Adults produced exact-answer solution.
Fast variations in the ultraviolet resonance lines of Alpha Camelopardalis (O9.5 Ia) - Evidence for blobs in the wind

The 72 IUE spectra of Alpha Cam and 19 IUE spectra of Kappa Cas, obtained during 72 hours of continuous IUE time in September 1978 were searched for variations in the profiles of the resonance lines of Si IV, C IV, and N V, and the results are discussed. The UV resonance lines in the spectra of Alpha Cam showed variations at the 2 percent level near -1800, -700, and +700 km/s. The first two variations can be explained by absorption components of outward-accelerated blobs or shells with an average acceleration of 1.5 cm/sq s. The characteristics of the blobs and shells are discussed, including the column densities and masses. No variations were found in the spectra of Kappa Cas.
A state‐dependent Riccati equation‐based estimator approach for HIV feedback control

We consider optimal dynamic multidrug therapies for human immunodeficiency virus (HIV) type 1 infection. In this context, we describe an optimal tracking problem attempting to drive the states of the system to a stationary state in which the viral load is low and the immune response is strong. We consider optimal feedback control with full‐state as well as with partial‐state measurements. In the case of partial‐state measurement, a state estimator is constructed based on viral load and T‐cell count measurements. We demonstrate by numerical simulations that by anticipation of and response to the disease progression, the dynamic multidrug strategy reduces the viral load, increases the CD4+ T‐cell count and improves the immune response. Copyright © 2006 John Wiley & Sons, Ltd.
A Progressive Visual Analytics Tool for Incremental Experimental Evaluation

This paper presents a visual tool, AVIATOR, that integrates the progressive visual analytics paradigm in the IR evaluation process. This tool serves to speed-up and facilitate the performance assessment of retrieval models enabling a result analysis through visual facilities. AVIATOR goes one step beyond the common "compute wait visualize" analytics paradigm, introducing a continuous evaluation mechanism that minimizes human and computational resource consumption.
Complete solution of the local minima in the XOR problem

A complete solution of the excitation values which may occur at the local minima of the XOR problem is obtained analytically for two-layered networks in the two most commonly quoted configurations, using the gradient backpropagation algorithm. The role of direct connections which bypass the two-layered system is discussed in connection to the XOR problem and other related training tasks.
Karl Steinbuch, ein zu Unrecht vergessener Pionier der künstlichen neuronalen Systeme

In 1961 Karl Steinbuch published a paper on a novel neural system which he called «Lernmatrix». It attracted some attention but fell into oblivion very soon, in particular when supporters of artificial intelligence as e.g. M. Minsky demonstrated «convincingly» that these structural approaches were not worth much. In some respects it held true for the contemporary one layer perceptrons and adalines etc. but not for the multi layer «Lernmatrix». This can be shown by converting the unusual matrix representation into today's diagrams of neural networks. The result is a network which is almost identical with the main structure of present prevailing multi layer perceptrons. It is the object of this paper on the one hand to do the inventor Steinbuch justice in his lifetime and on the other hand to cause some reflections in German research administration people, how to avoid wrong decisions in future
Fuzzy Logic Based Physical Property Prediction for Pozzolanic Concrete

This research applied fuzzy logic to forecast pozzolanic concrete blended with fly ash and meta kaolin. Samples of the pozzolanic concrete are tested for their impact strength, flexural strength, and modulus of elasticity (MOE) that are consequently used to construct the fuzzy logic model. In this work, each binary blended concrete is prepared for three different mixed proportions. The water/binder ratio (w/b) of each mixed proportion is varied to be 0.38, 0.55 and 0.8. The curing age of all sample is set to be 14- and 28-day. The fuzzy logic algorithm has three memberships where the impact strength, flexural strength, and MOE inputs are evaluated separately.
Pubworld-A R2rml Mapping Driven Approach To Transform Relational Database Data Into Shareable Format

Availability of publications data is significant in research development and a global publications data in semantic web will help research community in great manner. W3C has provided a semantic web standard termed as RDB to RDF Mapping Language(R2RML). R2RML allows us to express mappings to be customized from relational database to RDF database. This paper discusses a convergence approach-PubWorld using R2RML that generate r2rml mapping files from three disparate relational databases- two for publication and one for world database. Publications data are made shareable directly from mapping file by converting into local ontologies and merging the local ontologies along with one existing ontology into one global ontology. The Header-Dictionary-Triples(HDT) compression technique is used for storing the global ontology to achieve large spatial savings. Simple Protocol and RDF Query Language(SPARQL) queries using Jena ARQ(And RDF Query) on both RDF and HDT version shows similar running time.