Miracle-dz/UniFAR-FTUs huggingface dataset:
Influence of deposition temperature on structural, morphological, and optical properties of ZnS thin films

ZnS thin films were deposited onto glass substrates by chemical bath deposition (CBD) technique at different deposition temperatures (75, 80, 85, 90 °C) with non-toxic complexing agent tri-sodium citrate. Effects of deposition temperature on structural, morphological, and optical properties of thin films were investigated by using X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), and ultraviolet–visible spectroscopy, respectively. The XRD results show that all produced ZnS thin films have cubic structure. The calculated grain size values are between 13 and 26 nm. It was observed that the grain size values increase and crystallization of films improve as the deposition temperature increases. The FESEM images reveal that film surfaces are formed by almost homogeneously dispersed nanostructured particles. Optical characterization results show that ZnS thin films have high transmittance of about 80% in the range of 400–800 nm with band gap energy values between 3.52 and 3.65 eV. As the deposition temperature increases, the band gap energy values increase. According to these results, it was observed that the structural, morphological, and optical properties of ZnS films vary depending on the deposition temperature.
A novel fan shaped UWB antenna with band notch for WLAN using a simple parasitic slit

ABSTRACT A novel fan shaped Ultrawideband (UWB) antenna with WLAN band-notched characteristic is presented. The antenna consists of a multi circularly slotted patch with a 50 Ω microstrip feed line and with a modified ground plane. The overall size of the antenna is 24 × 30 mm2 and operates over the frequency range in between 2.99 and 16.62 GHz for Voltage Standing Wave Ratio (VSWR) < 2, except for the notched band in between 5 and 5.85 GHz (WLAN). To create notch band, an inverted U-shaped parasitic slit is etched out above the partial ground plane. A good agreement is achieved between the simulated and measured results of the proposed antenna and proved to be a potential candidate for UWB portable devices.
Hydrodynamic flow measurement error of ultrasonic flowmeters

In this work the essence of hydrodynamic flow measurement error of ultrasonic flowmeter (USM). The methods of eliminating this error are analyzed. One of these methods is considered in detail – optimization of the location schemes of chordal acoustic paths (APs) of USM. The optimization is performed on the basis of the analytical-empirical power law of the distribution of the velocity of the undistorted flow. As a result of the work, the authors calculated the optimal location of the APs for chordal schemes of two- and three-path USMs. It was established that optimization of the location schemes of APs chordal USM allows to reduce the hydrodynamic flow measurement error to a value of 0.05 %(for USMwith two hordal APs) and 0.1 %(for USMwith three chordal APs). The developed approach is convenient when designing multipath USM and their research in laboratory conditions.
Significance of Binaural Synthesis on the Spatial Acoustic Impression of Enclosures

Listening tests have been carried out to quantify the significance of binaural auralization over monaural auralization in accordance with the acoustic properties of the enclosure. To this end, acoustic rendering of three different rooms were generated based on synthesized monaural (two channels with the same audio material) and binaural room impulse responses. The auralizations were evaluated by means of subjective tests using headphones with non-individualized equalization. Parameters, such as localization, spatial impression and realism, were taken into consideration to determine the relevance of providing binaural information for the auralization of a given room. The analysis of the data has been conducted following a statistical approach based on ANOVA and Pearson correlation. The results indicate that spatial perception is strongly dependent on the acoustic characteristics of the rooms and on the listening condition of the audio material. Furthermore, as expected, advantages of binaural rendering in terms of source localization was also confirmed.
The Mediating Role of Organizational Commitment, Job Satisfaction: The Effect of Organizational Climate on Employee Performance

An effective organization must be able to create a conducive organizational climate to achieve the expected performance goals. To achieve this, it is necessary to have good human resource management and pay attention to factors that can become a link to achieve employee performance in accordance with the goals set by the organization. Job satisfaction and organizational commitment are often tested as connecting factors for employee performance. The purpose of this study was to examine and analyze the mediating role of organizational commitment and job satisfaction in the influence of organizational climate on employee performance. This study used a cross sectional method with 58 respondents. The results showed that (1) organizational commitment does not mediate the effect of organizational climate on employee performance (2) Job satisfaction mediates the effect of organizational climate on employee performance.
A Review on the Fabrication and Mechanical Characterization of Fibrous Composites for Engineering Applications

This review focuses on the fabrication and mechanical characterization of fibrous composites for engineering applications. Fibrous composites are materials composed of two or more distinct phases, with fibers embedded in a matrix. The properties of these materials depend on the properties of both the fibers and the matrix, as well as the way they are combined and fabricated. The various fabrication methods, along with the process parameters, used to manufacture synthetic and natural fibrous composites for engineering applications, including hand lay-up, compression molding, resin transfer molding, additive manufacturing, etc., are discussed. The mechanical characterization of fibrous composites, including their strength, stiffness, and toughness of both synthetic and natural fibrous composites are discussed. The advantages and disadvantages of fiber reinforcement are discussed, along with their influence on the resulting mechanical characteristics of the composites. It can be observed that the mechanical properties of fibrous composites can be tailored by controlling various factors, such as the fiber orientation, fiber volume fraction, and matrix type. Although fibrous composites offer significant advantages, several challenges hinder their widespread use in engineering applications. These challenges include high manufacturing costs, limited design guidelines, and difficulties in predicting their mechanical behavior under various loading conditions. Therefore, despite their unique properties, these challenges must be overcome for fibrous composites to realize their full potential as high-performance materials.
Surface‐Wave Green’s Tensors in the Near Field

Haney and Nakahara (2014) derived expressions for surface‐wave Green’s tensors that included near‐field behavior. Building on the result for a force source, Haney and Nakahara (2014) further derived expressions for a general point moment tensor source using the exact Green’s tensors. However, it has come to our attention that, although the Green’s tensors were correct, the resulting expressions for a general point moment tensor source were missing some terms. In this erratum, we provide updated expressions with these missing terms. The inclusion of the missing terms changes the example given in Haney and Nakahara (2014). Aki and Richards (1980) showed in an unnumbered equation between their equations 4.28 and 4.29 that two rules are needed to compute the moment source response from the Green’s tensor due to a force. Haney and Nakahara (2014) implemented the first of these two rules, involving the derivative of the radius with respect to …
A novel photothermal excitation cracked medium in gravitational field with two-temperature and hydrostatic initial stress

ABSTRACT A New Approach model for a theory of two temperature with finite linear opening Mode-I crack inside a semi-infinite semiconducting medium is presented. The mechanical force influence during the photothermal process with the influence of gravity and hydrostatic initial stress in two dimensions are used. The transient compressive stress wave travels along the crack from the loading region to the crack face. Using mathematical methods under the purview of different three theories (Lord–Şhulman (LS) includes one relaxation time, Green–Lindsay (GL) includes two relaxation times, and the classical dynamical coupled theory (CD)). The exact expression of the physical quantities and the two temperature coefficient ratios are obtained analytically using the harmonic wave technique and illustrated graphically. Comparisons between the results of the three theories are also introduced.
Compact BLE Antenna With a Modified PIFA Configuration for Wearable EMG Monitor

An antenna mounted underneath the top cover of a wearable device, fed by an ultralow-profile connector, is proposed for Bluetooth-low-energy (BLE) communication at 2.4 GHz. As the antenna is to be used for a wearable device, it is essential that it should be compact in size and tolerant against the nearby medium change. The modified planar inverted-F antenna (PIFA) that we propose consists of a main patch and a parasitic element to broaden the antenna bandwidth. The end of the parasitic element is shorted to miniaturize the antenna to $25\times10.8$ mm, fitting well inside a watch-type wearable device. Also, the complete ground layer of the antenna makes it radiate well in the outward direction, and minimally interact with the back-side medium. This results in the reflection coefficient being insensitive to the medium change on the backside. The proposed antenna has a peak gain of 3.62 dBi along with 20% efficiency and impedance bandwidth of 80 MHz (2.4–2.48 GHz). To examine the communicative operation of the antenna in practice, the received signal strength indicator (RSSI) of the complete prototype device with the antenna is measured in various postures and orientations, demonstrating reliable connectivity within a typical indoor distance of 10 m. Lastly, the antenna is embedded in a wearable device, demonstrating electromyography’s wireless monitoring.
On some life distributions with flexible failure rate

A new three-parameter distribution family with a flexible failure rate function arising by mixing the Weibull distribution and power-series distribution is introduced. This distribution family includes special cases of some well-used mixing distributions and generalizes the exponential power-series distribution. Various properties of the new distribution family are discussed. The maximum likelihood estimation and an EM algorithm are presented for finding the estimates of the distribution family parameters, and expressions for their asymptotic variance and covariance are derived. Intensive simulation studies are implemented and experimental results are illustrated with real data-sets.
Modified Structure-Preserving Schemes for the Degasperis—Procesi Equation*

We investigate the structure-preserving numerical algorithm of the Degasperis—Procesi equation which can be transformed into a bi-Hamiltonian form using the discrete variational derivative method. Based on two different space discretization methods, the Fourier pseudospectral method and the wavelet collocation method, we develop two modified structure-preserving schemes under the periodic boundary condition. These proposed schemes are proved to preserve the Hamiltonian invariants theoretically and numerically. Meanwhile, the numerical results confirm that they can simulate the propagation of solitons effectively for a long time.
Wideband and Miniaturized Phase-Corrected Empty Substrate-Integrated H-Plane Horn Antenna for 5G Millimeter Waves

This communication introduces a substrate-integrated H-plane horn antenna with phase-corrected structures. The quadratic curves etched on the horn aperture improve the impedance matching and the gain performance. The quasi-uniform phase distribution is achieved by the phase-corrected structure, which consists of the quadratic curves and metallized via-holes embedded symmetrically on the top and bottom layers. To integrate with other planar circuits and test the proposed antenna, the transition from microstrip line to empty substrate-integrated waveguide (ESIW) is used. Compared with the optimum horn, the proposed antenna realizes a 60% reduction of the longitudinal length. A wide impedance bandwidth of 22% for $\left |{ \mathbf {S11} }\right | < -10 \mathrm {dB}$ , which covers the n257, n258, and n261 5G frequency bands (24.25–29.5 GHz), is verified by a fabricated prototype. Moreover, the stable realized gain varying from 9.3 to 11 dBi is obtained during the operating bandwidth.
Innovation and long-term planning in public policy: the case of national road safety plans in Norway

Vision Zero was adopted as the long-term ideal for transport safety in Norway in 2001. Starting in 2002, national road safety action plans covering a period of four years have been developed. This paper identifies innovative elements in these plans and explores the statistical relationship between innovation and the number of killed or seriously injured road users over time. A statistical relationship is found, but it is noisy and cannot be interpreted as a causal relationship. We show how road safety policy has become upgraded and more systematic over time, and that these developments co-exist with a gradual reduction in number of severe injuries and deaths. Important innovative elements are related to the process of policy development, which now ensures a much broader , consensus and commitment to improving road safety than before the action plans were introduced (i.e. before 2002).
Discriminative dimensionality reduction: variations, applications, interpretations

The amount of digital data increases rapidly as a result of advances in information and sensor technology. Because the data sets grow with respect to their size, complexity and dimensionality, they are no longer easily accessible to a human user. The framework of dimensionality reduction addresses this problem by aiming to visualize complex data sets in two dimensions while preserving the relevant structure. While these methods can provide significant insights, the problem formulation of structure preservation is ill-posed in general and can lead to undesired effects. In this thesis, the concept of discriminative dimensionality reduction is investigated as a particular promising way to indicate relevant structure by specifying auxiliary data. The goal is to overcome challenges in data inspection and to investigate in how far discriminative dimensionality reduction methods can yield an improvement. The main scientific contributions are the following: (I) The most popular techniques for discriminative dimensionality reduction are based on the Fisher metric. However, they are restricted in their applicability as concerns complex settings: They can only be employed for fixed data sets, i.e. new data cannot be included in an existing embedding. Only data provided in vectorial representation can be processed. And they are designed for discrete-valued auxiliary data and cannot be applied to real-valued ones. We propose solutions to overcome these challenges. (II) Besides the problem that complex data are not accessible to humans, the same holds for trained machine learning models which often constitute black box models. In order to provide an intuitive interface to such models, we propose a general framework which allows to visualize high-dimensional functions, such as regression or classification functions, in two dimensions. (III) Although nonlinear dimensionality reduction techniques illustrate the structure of the data very well, they suffer from the fact that there is no explicit relationship between the original features and the obtained projection. We propose a methodology to create a connection, thus allowing to understand the importance of the features. (IV) Although linear mappings constitute a very popular tool, a direct interpretation of their weights as feature relevance can be misleading. We propose a methodology which enables a valid interpretation by providing relevance bounds for each feature. (V) The problem of transfer learning without given correspondence information between the source and target space and without labels is particularly challenging. Here, we utilize the structure preserving property of dimensionality reduction methods to transfer knowledge in a latent space given by dimensionality reduction.
In-depth comparisons of MaxEnt, biased SVM and one-class SVM for one-class classification of remote sensing data

ABSTRACT One-class classification is an increasingly used classification approach in the remote sensing community. It can be used to classify one specific class and requires only labelled training data of this class of interest. Several one-class classifiers have been introduced and many comparative studies evaluate their performance. In most, if not all, of these comparisons each classifier is analysed with a specific (hyper-) parameter and threshold selection approach. In this letter, we present an ‘in-depth’ comparison of the frequently used one-class classifiers one-class Support Vector Machine (SVM), biased SVM (bSVM) and MaxEnt, that is, a frequently used maximum entropy-based technique. We create various classification tasks with eight classes of interest and three feature sets (multi-temporal RapidEye, TerraSAR-X and fused data set) and evaluate the overall performance of the two classifiers with different parameter and threshold selection approaches. Our results show that over all classification approaches bSVM outperforms one-class SVM and MaxEnt in terms of discriminative power. However, the state-of-the-art implementation of the bSVM performed relatively poor and the best results were obtained with an alternative threshold selection approach. We found that even the best overall approach still performs poor in a significant amount of tasks. Therefore, we conclude that not only more sophisticated model selection approaches should be developed but also diagnostic tools that support the user in the evaluation of a classification result in the absence of a complete and representative test set.
Interaction Between Closely Packed Array Antenna Elements Using Meta‐Surface for Applications Such as MIMO Systems and Synthetic Aperture Radars

The paper presents a technique to enhance the isolation between adjacent radiating elements that is common in densely packed antenna arrays. Such antennas provide frequency beam‐scanning capability needed in multiple‐input multiple‐output (MIMO) systems and synthetic aperture radars. The method proposed here uses a metamaterial decoupling slab (MTM‐DS), which is located between radiating elements, to suppress mutual coupling between the elements that would otherwise degrade the antenna efficiency and performance in both the transmit and receive mode. The proposed MTM‐DS consists of mirror imaged E‐shaped slits engraved on a microstrip patch with inductive stub. Measured results confirm over 9–11 GHz with no MTM‐DS the average isolation (S12) is −27 dB; however, with MTM‐DS the average isolation improves to −38 dB. With this technique the separation between the radiating element can be reduced to 0. 66λ0, where λ0 is free space wavelength at 10 GHz. In addition, with this technique there is 15% improvement in operating bandwidth. At frequencies of high impedance match of 9.95 and 10.63 GHz the gain is 4.52 and 5.40 dBi, respectively. Furthermore, the technique eliminates poor front‐to‐back ratio encountered in other decoupling methods. MTM‐DS is also relatively simple to implement. Assuming adequate space is available between adjacent radiators the MTM‐DS can be fixed retrospectively on existing antenna arrays, which makes the proposed method versatile.
The real radiation antenna function for [FORMULA] at NNLO QCD

As a first step towards the application of the antenna subtraction formalism to NNLO QCD reactions with massive quarks, we determine the real radiation antenna function and its integrated counterpart for reactions of the type [FORMULA], where S denotes an uncolored initial state and Q, q a massive and massless quark, respectively. We compute the corresponding integrated antenna function in terms of harmonic polylogarithms. As an application and check of our results we calculate the contribution proportional to α s 2 e Q 2 N f to the inclusive heavy-quark pair production cross section in e + e − annihilation.
The Evolution Of PHENIX Into An Electron Ion Collider (EIC) Experiment

The Electron Ion Collider (EIC, arXiv:1212.1701.v3) will allow for precision measurements of the partonic and spin structure of nucleons and the partonic structure of nuclear matter using e+p and e+A collisions, respectively. One of the realizations of the EIC, the eRHIC at BNL, plans to utilize the existing RHIC storage rings (polarized proton and other ion beams) and a high-intensity polarized electron facility to be built in the RHIC tunnel. Before the transition to eRHIC, RHIC itself still holds a huge potential for study leading to new insights into hadronic spin structure and cold nuclear matter with p+p and p+A collisions. An experiment based on the BaBar solenoid with barrel calorimeters and tracking detectors (sPHENIX, arXiv:1207.6378v2) and additional instrumentation in the proton-going direction (fsPHENIX) would realize this potential. By design, this detector is planned to smoothly evolve into a full-fledged EIC experiment at eRHIC with additional calorimeters, tracking, and particle identification systems (arXiv:1402.1209). We give an overview of the experiment in its RHIC and eRHIC stages, the respective physics goals, and detector simulations.
Global Segmentation Algorithm for Partially Saturated Granular Geomaterials

A new global segmentation technique, namely refined statistics-based method is proposed. X-ray computed tomography (CT) images of partially saturated granular geomaterials are segmented using this technique. Index properties of the geomaterials are quantified using the new technique and compared with those of the Otsuand iterative-Otsu techniques. For the tested silica sand specimen, the new-technique-estimated void ratio and the degree of saturation were 0.67 and 39.35%. The estimates for the glass bead specimen yielded 0.64 and 43.49%, respectively. The true void ratio (0.66) and degree of saturation (37.71%) were determined with user controlled Image-Pro software package. It was found that the proposed method estimated the void ratio and the degree of saturation with 1.52 and 4.35 percent errors for the silica sand and with 15.63 and 0.34 percent errors for the glass bead, respectively. The computational time of the proposed method was found to be shorter than other methods considered. Overall, it is concluded that the proposed technique performed better in segmenting three-phase granular geomaterials. Citation information: please cite this work as follows Abera Kokeb, A. , N. Manahiloh Kalehiwot, and M. Nejad Mohammad, Global Segmentation Algorithm for Partially Saturated Granular Geomaterials. , in IFCEE 2018. Link to published article: https://ascelibrary.org/doi/10.1061/9780784481585.046