Miracle-dz/UniFAR-FTUs huggingface dataset:
Exciting rogue waves, breathers, and solitons in coherent atomic media

We propose a scheme that excites rogue waves via electromagnetically induced transparency (EIT), which can also excite breathers and solitons. The system is a resonant Λ-type atomic ensemble. Under EIT conditions, the envelope equation of the probe field can be reduced to several different models, such as the saturable nonlinear Schrödinger equation (SNLSE), and SNLSE with the trapping potential provided by a far-detuned laser field or a magnetic field. In this scheme, rogue waves can be generated by different initial pulses, such as the Gaussian wave with (or without) the uniform background. The scheme can be used to obtain rogue waves, breathers and solitons. We show the existence regions of rogue waves, breathers, and solitons as the function of the amplitude and width of the initial pulse. The novelty of our paper is that, we not only show rogue waves in the integrable system numerically, but also present the method to generate and control rogue waves in the non-integrable system.
Batalin-Vilkovisky gauge-fixing of a chiral 2-form in six dimensions

We perform the gauge-fixing of the theory of a chiral 2-form boson in six dimensions starting from the action given by Pasti, Sorokin and Tonin. We use the Batalin-Vilkovisky formalism, introducing antifields and writing down an extended action satisfying the classical master equation. Then we gauge-fix the three local symmetries of the extended action in two different ways.
Influence of haptic guidance on driving behaviour under degraded visual feedback conditions

Drivers always suffer varying degrees of performance decrements under insufficient visual feedback (VF) conditions. Nowadays, haptic guidance (HG) is a developing assistance technology to enhance steering performance; however, driver reactions to HG under degraded VF conditions are still unclear. Therefore, this study focuses on the influence of HG on driving behaviour when part of the road ahead is occluded. The experimental conditions combined three levels of HG, namely none, weak, and strong torques, with four scenarios of VF: whole, near, mid, and far segments. The driving experiment was conducted using a high-fidelity driving simulator with 12 participants. By analysing the standard deviation of lane position and time-to-lane crossing, it was shown that the lane keeping performance became worse without the HG for the degraded VF of near and far segments compared to that of whole and mid-segments. Furthermore, it indicates that the performance decrement in the worse cases was compensated by the implementation of HG, and the strong torque was significantly more effective than the weak torque. Additionally, the use of HG always resulted in an improved turning manoeuvre while approaching curves in the degraded VF of near and far segments.
n-Atic Order and Continuous Shape Changes of Deformable Surfaces of Genus Zero

We consider in mean-field theory the continuous development below a second-order phase transition of n-atic tangent-plane order on a deformable surface of genus zero. The n-atic order parameter ψ = ⟨exp [inθ]⟩ describes, respectively, vector, nematic, and hexatic order for n = 1, 2, and 6. Tangent-plane order expels Gaussian curvature. In addition, the total vorticity of orientational order on a surface of genus zero is two. Thus, the ordered phase of an n-atic on such a surface will have 2n vortices of strength 1/n, 2n zeros in its order parameter, and a nonspherical equilibrium shape. Our calculations are based on a phenomenological model with a gaugelike coupling between ψ and curvature, and our analysis follows closely the Abrikosov treatment of a type-II superconductor just below Hc2.
Quantum quasi-cyclic low-density parity-check error-correcting codes

In this paper, we propose the approach of employing circulant permutation matrices to construct quantum quasicyclic (QC) low-density parity-check (LDPC) codes. Using the proposed approach one may construct some new quantum codes with various lengths and rates of no cycles-length 4 in their Tanner graphs. In addition, these constructed codes have the advantages of simple implementation and low-complexity encoding. Finally, the decoding approach for the proposed quantum QC LDPC is investigated.
Non-linear electrical modeling of MASMOS structure to design power amplifiers for 4G applications

Abstract This paper presents the characterization and modeling process of MASMOS structures by means of a classical compact three-port electrical non-linear model approach. From DC and S-parameters measurements, a large signal model (LSM) has been developed for two different MASMOS structures. The proposed LSM and associated modeling approach have been validated through load pull measurements with different harmonic load conditions. Then, generic multi-tone measurements have been carried out making use of an innovative test bench to quantify linearity performances of MASMOS structures. The model is used in a power amplifiers design flow for LTE applications and is expected to allow a significant reduction of simulation time, compared with technological-oriented model as BSIM3.
An Overview of Snake like Units

In this paper is presented a few models of a robotic snake like unit which can be used in Minimally Invasive Surgery (MIS). In particular, this paper focuses on the flexible unit details. It’s rigid links can be fabricated using selective materials that are light-weight and slim. Thus, this flexible unit can be inserted through one small cavity. Finally, we show that the selected flexible unit may be a very good alternative for Single Port Access (SPA) surgery or this can be used in other environments as well.
A Hybrid Solenoid Coupler for Wireless Charging Applications

This paper introduces a primary pad for wireless charging applications, which is able to transfer high power over large air gaps and is tolerant to lateral displacements suitable for electric vehicle charging applications. The developed pad is an improved solenoid designed specifically to address issues such as flux leakage and loss while retaining good coupling. It is a hybrid structure that consists of a combination of rectangular- or square-shaped coils and a central solenoid, all connected in series. When energized, it produces a single-sided, polarized flux similar to the flux pattern of the solenoid and double D (DDP) pads. The power transfer capability of this pad is investigated through finite-element analysis simulations. The results are compared first to a similar sized solenoid from which it was derived, and also a DDP primary pad and are verified through measurements on prototype systems in the laboratory. The aim of this paper is to provide an improved hybrid solenoid pad showing higher coupling factors and lower stray field emissions with a performance (coupling and stray field emissions) similar to that of DDPs.
Review on challenges among small and medium enterprises in Malaysia

Small and Medium Enterprises (SMEs) have been considered as a backbone for economy both in developed and developing countries. SMEs play significant role in the growth of economy of every country due to their vital contributions towards GDP and employment. The main drive of this paper was on the competiveness of the SMEs in Malaysia. In addition, this paper also seek to explore the definition of SMEs and also further explore the challenges facing SMEs. Apart from these, this paper also offers some possible solutions to the challenges faced by the SMEs. This paper add to the knowledge and the familiarity about the current issues relating to the SMEs in Malaysia. In brief, challenges faced by the SMEs in Malaysia can be summarized as the imperfect capability to meet the market environment, limited capacity for technology management, knowledge acquisition, lack of skilled human resources and also limited access to finance and capital. However, SMEs across different sizes was found to have various yet similar challenges relatives to their sizes. These challenges must be adhered specifically based on the need of these SMEs.
Architectural Vulnerabilities in Plug-and-Play Systems

Architectural Vulnerabilities in Plug-and-Play Systems Taylor Corrello, M.S. Rochester Institute of Technology, 2018 Supervisor: Dr. Mehdi Mirakhorli Plug-and-play architectures enhance systems’ extensibility by providing a framework that enables additional functionalities to be added or removed from the system at their runtime. Such frameworks are often implemented through a set of well-defined interfaces that form the extension points for the pluggable functionalities. However, the plug-ins can increase the applications attack surface or introduce untrusted behavior into the system. Designing a secure plug-and-play architecture is critical and non-trivial as the features provided by plug-ins are not known in advance. In this paper, we conduct an in-depth study of seven systems with plug-and-play architectures. In total, we have analyzed 3,183 vulnerabilities from Chromium, Thunderbird, Firefox, Pidgin, WordPress, Apache OfBiz, and OpenMRS whose core architecture is
Equivalent circuit representation of electromechanical transducers: I. Lumped-parameter systems

Several errors occurred in the tables and equations of this article. The corrected versions are reproduced below. Table 1. Constitutive and transfer equations of the lumped-parameter transducers shown in figure 3, completed with a stabilization spring k at the mechanical port (as illustrated by figure 4). The matrix equations describe the relations between the phasor quantities of the sinusoidal signals. The meaning of the symbols is explained in appendix B and in table 2. Table 2. Parameters used in table 1, expressed in terms of the dimensional parameters, the bias conditions, and physical constants. Table 3. Direct electromechanical analogies for lumped translational systems [1,2].
Anthropomorphizing information to enhance trust in autonomous vehicles

Trust is an essential condition for accepting and relying on autonomous vehicles. One of the well‐studied factors contributing to trust in automation systems is anthropomorphism. It is expected that anthropomorphism may also enhance trust in the field of autonomous vehicles. A study is presented that investigated the effect of anthropomorphic embodiment for information about the vehicle's maneuvers on people's trust in autonomous vehicles. In a driving simulator experiment deploying a between‐subjects design, participants (N = 39) were exposed to varying amounts of information displaying upcoming actions of an autonomous vehicle (symbolic information or symbolic + anthropomorphic information). Each group rated trust and liking for the test condition against a reference condition where no information about the upcoming actions was provided through questionnaires. Symbolic + anthropomorphic information resulted in significantly more trust than symbolic information. Through one‐sample tests, it was found that ratings for symbolic + anthropomorphic information were significantly different from no information, while symbolic information by itself was not. Ratings for perceived anthropomorphism were positively correlated with trust and liking. It is concluded that anthropomorphizing information may foster the perception of autonomous vehicles as social agents and enhance trust in those vehicles.
Charged Particle Emission and Luminescence upon Bending Fracture of Granite

Charged particle emission and luminescence upon bending fracture of granite were investigated in a vacuum. In most cases, sharp peaks of charged particle emission and luminescence were observed at the very instant of final fracture, and continued for several seconds. However, it sometimes happened that the bending fracture needed about 10-20 ms, and a sharp peak of charged particle emission was also observed at the beginning of the decrease in the applied load, suggesting that initiation and propagation of microcrack induced the charged particle emission. In both cases, luminescence was observed only at the instant of final fracture. Luminescence spectra were composed of two bands centered at about 2.1 and 3.0 eV, and each band showed different decay profiles, suggesting the contribution of the different defect centers.
Improved formulas for fusion cross-sections and thermal reactivities

For interpreting fusion rate measurements in present fusion experiments and predicting the fusion performance of future devices or of d-t experiments in present devices, it is important to know the fusion cross-sections as precisely as possible. Usually, it is not measured data that are used, but parametrizations of the cross-section as a function of the ion energy and parametrizations of the Maxwellian reactivity as a function of the ion-temperature. Since the publication of the parametrizations now in use, new measurements have been made and evaluations of the measured data have been improved by applying R-matrix theory. The authors show that the old parametrizations no longer adequately represent the experimental data and present new parametrizations based on R-matrix calculations for fusion cross-sections and Maxwellian reactivities for the reactions D(d,n)3He, D(d,p)T, T(d,n)4He and 3He(d,p)4He
Particle nucleation and growth in a low-pressure argon-silane discharge

The growth of particle size has been measured in a low-pressure argon-silane plasma using high-resolution transmission electronic microscopy. The results show that formation and growth of dust particles is an homogeneous process; the first generation size distribution is monodispersed; and the growth kinetics reveals a three-step process from molecular ions to large particles. Together with measurements of particle concentration obtained by laser light scattering, these measurements give a clear indication that the growth proceeds through three successive steps: (i) 'rapid' formation of crystalline clusters (as shown by dark-field high-resolution transmission electron microscopy) with concentrations of up to 1010 cm-3; (ii) formation of aggregates, of diameters up to 50 nm, by coagulation (during coagulation the particle concentration decreases dramatically); and (iii) growth of the particles with a constant concentration by surface deposition of SiHx radicals, whilst the numerical density remains constant. Laser-induced particle explosive evaporation has been performed using a XeCl (308 nm) laser. This experiment allowed detection of nanocrystallites and also the beginning of their coagulation and gave clear evidence of the temperature effect on particle formation.
Comparison of optical-power meters between the NIST and the PTB

We describe the results of a comparison of optical-power meters undertaken by the National Institute of Standards and Technology (NIST, USA) and the Physikalisch-Technische Bundesanstalt (PTB, Germany) at nominal wavelengths of 1300 nm and 1550 nm. Both laboratories used thermal detectors as reference standards, which were compared using a germanium trap detector as a transfer standard. Measurement results showed differences of less than 1 part in 103, well within the combined uncertainty for both laboratories.
Ricci focusing, shearing, and the expansion rate in an almost homogeneous Universe

The Universe is inhomogeneous, and yet it seems to be incredibly well-characterised by a homogeneous relativistic model. One of the current challenges is to accurately characterise the properties of such a model. In this paper we explore how inhomogeneities may affect the overall optical properties of the Universe by quantifying how they can bias the redshift-distance relation in a number of toy models that mimic the real Universe. The models that we explore are statistically homogeneous on large scales. We find that the effect of inhomogeneities is of order of a few percent, which can be quite important in precise estimation of cosmological parameters. We discuss what lessons can be learned to help us tackle a more realistic inhomogeneous universe.
Delphi Study Identifying Future Technical Competencies for Architecture and Construction Educators

The purpose of this modified Delphi study was to identify the dominant technical competencies needed to effectively teach architecture and construction at the secondary and postsecondary level and to determine if there are differences of opinion among educators, recent graduates and business and industry personnel as to what those competencies should be. At the time of publication, the menu of technical workshops offered by the Kansas Center for Career and Technical Education (KCCTE) was determined by the workshop administrator and the director of the KCCTE. To ensure that these workshops provide instructors with the knowledge and skills that align with industry needs, it was imperative to identify the changing technical competencies needed by members of the workforce and the instructors who prepare them. A three round Delphi study was conducted to identify the dominant technical competencies. Participants from the area of education, recent graduates and industry personnel were asked to provide a list of technical skills they perceived to be lacking as students moved from education to industry. A list of 23 technical competencies was created and participants rated each topic on level of importance. The top 15 topics were then selected and participants rerated those topics based on their beliefs and the Mean rating of the group from the previous round. Some differences in levels of perceived importance was noted between groups. Seven technical competencies were rated highest in perceived level of importance by the three groups. This study provided a basis on which the KKCTE can act to develop appropriate technical workshops to meet the needs of architecture and construction teachers in the state of Kansas.
Spectral, temporal and temperature features of the nonlinear response of high-temperature superconductors in transient nonlinear spectroscopy

It is shown that basic properties of the nonlinear response of high-temperature superconductors (HTSCs) observed in femtosecond and picosecond pump—probe experiments at high and low pump levels in various variants of the pump—probe spectroscopy, including one- and two-photon excited-state probing, can be interpreted by using two assumptions. The spectral and temperature properties of the HTSC response at low pump levels can be explained taking into account the contributions from interband electronic transitions to the dielectric constant. At the same time, drastic variations in the HTSC response kinetics (temporal features) observed at high pump levels (for a typical pump pulse energy of ∼10-7 J in a focal spot of diameter 150 μm) can be explained by assuming the existence of a 'frozen' (metastable) energy gap in the electronic spectrum of a HTSC. In this case, all the conditions required for the interpretation of a drastic decrease in the relaxation rate of a nonlinear response (degeneracy) are realised due to the specific distribution of the electronic state density immediately after the formation of the energy gap in the electronic spectrum of the HTSC.
Realization of a Single-Phase Multilevel Inverter for Grid-Connected Photovoltaic System

This paper introduces the implementation of a single-phase multilevel inverter for a grid-connected photovoltaic system. The considered topology contains a full bridge converter tied to an auxiliary circuit made of two power switches. A proportional integral (PI) current controller is established with this inverter to inject a sinusoidal current into the grid with a power factor near to unity. The studied system is tested on Matlab/Simulink and verified by experiment through a test bench comprising of a fabricated prototype and a DSP TMS320F28379D. The obtained results prove the efficiency of the inverter to maintain a direct power flow from DC sources, such as solar panels, to the grid by respecting some normalized criteria for this operation.
Prinsip dan Tujuan Penilaian Tindakan Kelas

Classroom Assessments are conducted in various ways, such as a written test (Paper and Pencils), students' work assessment through the ability of students’ work (portfolio), three-dimensional product assessment, and students’ performance assessment (performance). Classroom assessment is a process conducted through planning, gathering information through a number of evidences demonstrating the achievement of learning outcomes, reporting, and collecting information of the learning outcomes. In the implementation of classroom assessment, the roles of the teachers are very important in determining the accuracy of assessments to assess students’ success and failure. Types of the assessments designed should meet the standards of validity and reliability in order to achieve the results in accordance with what is expected. Therefore, the teachers’ professional competencies are essential requirement in assessing. In everyday life at school, it often appears assessment information that generates benefits both for teachers and students. In a class discussion, for example, the statements made by some students could be a guide for teachers to believe that students do not understand the concepts taught to them.
Constraints on light WIMP candidates from the isotropic diffuse gamma-ray emission

Motivated by the measurements reported by direct detection experiments, most notably DAMA, CDMS-II, CoGeNT and Xenon10/100, we study further the constraints that might be set on some light dark matter candidates, MDM ∼ few GeV, using the Fermi-LAT data on the isotropic gamma-ray diffuse emission. In particular, we consider a Dirac fermion singlet interacting through a new Z′ gauge boson, and a scalar singlet S interacting through the Higgs portal. Both candidates are WIMP (Weakly Interacting Massive Particles), i.e. they have an annihilation cross-section in the pbarn range. Also they may both have a spin-independent elastic cross section on nucleons in the range required by direct detection experiments. Although being generic WIMP candidates, because they have different interactions with Standard Model particles, their phenomenology regarding the isotropic diffuse gamma-ray emission is quite distinct. In the case of the scalar singlet, the one-to-one correspondence between its annihilation cross-section and its spin-independent elastic scattering cross-section permits to express the constraints from the Fermi-LAT data in the direct detection exclusion plot, σn0−MDM. Depending on the astrophysics, we argue that it is possible to exclude the singlet scalar dark matter candidate at 95% confidence level. The constraints on the Dirac singlet interacting through a Z′ are comparatively weaker.
Nanofiber-mediated radiative transfer between two distant atoms (11 pages)

We study spontaneous emission from a pair of two-level atoms near a nanofiber. We demonstrate a substantial radiative exchange between distant atoms mediated by the guided modes of the nanofiber. The exchange is shown to lead to increased and decreased lifetimes of the subradiant and superradiant states, respectively. Our analysis is based on the full quantization of both the radiation and guided modes of the fiber in the framework of the Heisenberg-Langevin theory and the master equation formalism.