Miracle-dz/UniFAR-FTUs huggingface dataset:
The dual-frequency zero-backward scattering realized in a hybrid metallo-dielectric nanoantenna

In this paper, we propose a hybrid metallo-dielectric core-shell nanorod for the Kerker-type effect at two different frequencies. The effect arises from the interference of the scattering waves of the nanorod, which are generated by the magnetic dipole moment (MD) of the high-index hollow particle and the electric dipole moment (ED) induced in both metallic and dielectric particles. Interestingly, we find that such kind of unidirectional radiation properties, (i.e., zero back scattering occurring at dual frequencies) can be sustained with a single nanorod, which usually being equivalent to a local electric dipole source. The effect of substrate is also considered to investigate the typical experimental realization for the dual-frequency unidirectionalities of the nanoantenna. Furthermore, the unidirectionality can be further improved by the design of one-dimensional array of the hybrid nanoantenna. Our results could provide an additional degree of freedom for light scattering manipulation, and widen the versatile applications in nanoantennas, optical sensor, light emitters, as well as photovoltaic devices.In this paper, we propose a hybrid metallo-dielectric core-shell nanorod for the Kerker-type effect at two different frequencies. The effect arises from the interference of the scattering waves of the nanorod, which are generated by the magnetic dipole moment (MD) of the high-index hollow particle and the electric dipole moment (ED) induced in both metallic and dielectric particles. Interestingly, we find that such kind of unidirectional radiation properties, (i.e., zero back scattering occurring at dual frequencies) can be sustained with a single nanorod, which usually being equivalent to a local electric dipole source. The effect of substrate is also considered to investigate the typical experimental realization for the dual-frequency unidirectionalities of the nanoantenna. Furthermore, the unidirectionality can be further improved by the design of one-dimensional array of the hybrid nanoantenna. Our results could provide an additional degree of freedom for light scattering manipulation, and widen the v.
Experimental study on the characteristics of DBD plasma coal liquefaction by using coal nanopowder

A new method for liquefying coal using dielectric barrier discharge plasma has been studied. By utilizing waste oil as the solvent and processing coal nanopowder in the plasma for 10 min, we have attained a liquid yield of more than 80%. The experiment shows that not only the coal nanopowder promoted the liquefaction process, but hydrogen radicals improved the liquid yield effectively. In the plasma processing, the phenomenon of the changing color of the nanopowder solution and not producing a solid residue has been obviously observed. The rational parameters that affected the liquefaction of coal nanopowder have been achieved through the experiment, and the liquefied products have been analyzed.
Introducing Manganese-Doped Lead Halide Perovskite Quantum Dots: A Simple Synthesis Illustrating Optoelectronic Properties of Semiconductors

Quantum dots (QDs) are considered useful for demonstrating quantum phenomena in undergraduate laboratories due to their monodisperse size and excellent optical properties. Although doping has an increasingly important role in QD fabrication in the semiconductor field, it has rarely been discussed in the context of the undergraduate laboratory. In this work, a simple synthesis and characterization method for Mn-doped CsPbCl3 QDs for an upper-level undergraduate inorganic chemistry laboratory is reported. The Mn-doped CsPbCl3 system benefits from a simplified synthesis and straightforward characterization. This experiment introduces QD research to students and offers opportunities for instructors to discuss many important concepts in inorganic chemistry, such as energy band theory, particle-in-a-box model, electron paramagnetic resonance, ligand field theory, and nanochemistry.
THE ANTI-ANTHRACNOSE ACTIVITIES OF POLAR AND NON-POLAR COMPOUNDS EXTRACTED FROM MEDICINAL PLANTS IN THE NIGER DELTA REGION OF NIGERIA ON SPORE GERMINATION OF COLLECTOTRICHUM GLOEOSPORIOIDES (PENZ.) PENZ. & SACH.

Polar and non-polar compounds extracted from twenty-one medicinal plants used in folklore medicine for treating infectious diseases were screened for antifungal activities using anthracnose fungus Colletotrichum gloeosporioides isolated from Carica papaya. The polar compounds were extracted with ethanol, methanol and water while the non-polar compounds were extracted with n-hexane and chloroform. Screening of the various extracts for anti-anthracnose activity was done using the paper disc diffusion method with chlorothaolonil as control. The extracts from the medicinal plants were active against the anthracnose fungus with inhibition zones ranging from 5.67-18.00mm. The polar compounds were more active than the nonpolar compounds and the methanol extracts were the most active among the polar compounds. The aqueous extracts were the least active. The most active plants were Azadirachtha indica and Etlingera elatoir with the methanol extract recorded an inhibition zones of 18mm and 14.67mm respectively which were higher than that recorded by chlorothalonil (9mm). The most active aqueous extract was that of the plant Cymbopogon citratus but n-hexane and methanol extracts of this plant were more active. The minimum inhibitory concentrations of methanol extracts varied between 10mg/ml to 100mg/ml of the plants tested. The plants with significant activity are potential sources of anti-anthracnose agents.
Versatile N‐Doped MXene Ink for Printed Electrochemical Energy Storage Application

Printing is regarded as a revolutionary and feasible technique to guide the fabrication of versatile functional systems with designed architectures. 2D MXenes are nowadays attractive in printed energy storage devices. However, owing to the van der Waals interaction between the MXene layers, the restacking issues within the printed electrodes can significantly impede the ion/electrolyte transport and hence handicap the electrochemical performances. Herein, a melamine formaldehyde templating method is demonstrated to develop crumpled nitrogen‐doped MXene (MXene‐N) nanosheets. The nitrogen doping boosts the electrochemical performances of MXene via enhanced conductivity and redox activity. Accordingly, two types of MXene‐N inks are prepared throughout the optimization of the ink viscosity to fit the 2D screen printing and 3D extrusion printing, respectively. As a result, the screen printed MXene‐N microsupercapacitor delivers an areal capacitance of 70.1 mF cm−2 and outstanding mechanical robustness. Furthermore, the 3D‐printed MXene‐N based supercapacitor manifests an areal capacitance of 8.2 F cm−2 for a three‐layered electrode and readily stores a high areal energy density of 0.42 mWh cm−2. The approach to harnessing such versatile MXene‐N inks offers distinctive insights into the printed energy storage systems with high areal energy density and large scalability.
Determining the daytime Earth radiative flux from National Institute of Standards and Technology Advanced Radiometer (NISTAR) measurements

Abstract. The National Institute of Standards and Technology Advanced Radiometer (NISTAR) onboard the Deep Space Climate Observatory (DSCOVR) provides continuous full-disk global broadband irradiance measurements over most of the sunlit side of the Earth. The three active cavity radiometers measure the total radiant energy from the sunlit side of the Earth in shortwave (SW; 0.2–4 µm), total (0.4–100 µm), and near-infrared (NIR; 0.7–4 µm) channels. The Level 1 NISTAR dataset provides the filtered radiances (the ratio between irradiance and solid angle). To determine the daytime top-of-atmosphere (TOA) shortwave and longwave radiative fluxes, the NISTAR-measured shortwave radiances must be unfiltered first. An unfiltering algorithm was developed for the NISTAR SW and NIR channels using a spectral radiance database calculated for typical Earth scenes. The resulting unfiltered NISTAR radiances are then converted to full-disk daytime SW and LW flux by accounting for the anisotropic characteristics of the Earth-reflected and emitted radiances. The anisotropy factors are determined using scene identifications determined from multiple low-Earth orbit and geostationary satellites as well as the angular distribution models (ADMs) developed using data collected by the Clouds and the Earth's Radiant Energy System (CERES). Global annual daytime mean SW fluxes from NISTAR are about 6 % greater than those from CERES, and both show strong diurnal variations with daily maximum–minimum differences as great as 20 Wm−2 depending on the conditions of the sunlit portion of the Earth. They are also highly correlated, having correlation coefficients of 0.89, indicating that they both capture the diurnal variation. Global annual daytime mean LW fluxes from NISTAR are 3 % greater than those from CERES, but the correlation between them is only about 0.38.
Bulletin of Electrical Engineering and Informatics

Received Jul 1, 2022 Revised Aug 18, 2022 Accepted Sep 2, 2022 A novel 4-D hyperchaotic system that have seven positive parameters in third order with thirteen terms is proposed, in this paper, the proposed chaotic behavior is proved by analysis of the Lyapunov's exponent, fractional dimension, zero-one test, sensitivity dependent on initial condition (SDIC), phase portraits, and waveform analysis, this study offers an innovative designed image encryption algorithm depending on a 4-D chaotic system using fast discrete Walsh-Hadamard transform and magic matrix that is both effective and simple for image encryption and gives it a higher level of security. This new 4-D hyperchaotic system is used to produce a random key in this algorithm. The implemented and simulated results using mathematica programs and MATLAB programs were supplied qualitatively and in figures. The proposed system is hyperchaotic, according to testing results, because it possesses two Lyapunov positive exponents.
Microbiological Safety and Antibiogram Analysis
of Selected Food Products Obtained
in the Marketplace of Peshawar and Mardan,
KPK, Pakistan

Foodborne diseases are very frequent and can easily transmit from contaminated food and food handlers. Among the foodborne pathogens, strains of Staphylococcus aureus, Bacillus cereus, Listeria monocytogen and Clostridium are very important because of its presence in a wide range of foodstuffs. A total of 520 food samples were collected at Peshawar (50%) and Mardan (50%), Khyber Pakhtunkhwa, Pakistan, from April 2016 to March 2017. Isolates were cultured and discriminated by Gram stain, followed by biochemical identification, disk diffusion assay was performed using antibacterial and antifungal agents. Out of 520, only 122 (23.46%) samples were positive for various types of bacterial and fungal pathogens. Gram-positive bacteria was the predominant (70.49%) followed by fungal pathogens (26.23%) and Gram-negative bacterial pathogens (3.27%) among the total positive samples. Prominent bacterial samples were Staphylococcus aureus, Bacillus spp. , Clostridium spp. , Staphylococcus # Contributed equally *e-mail: hayatkhan@uoswabi.edu. pk **e-mail: firasat@uoswabi.edu. pk ***e-mail: zeyadz44@yahoo.com DOI: 10.15244/pjoes/94996 ONLINE PUBLICATION DATE: 2019-08-02 Khan H. , et al. 4240
Dynamic mechanical behavior of prismatic lithium‐ion battery upon impact

Dynamic impact safety of lithium‐ion batteries (LIBs) is a hot subject. The mechanical‐electrical behavior of LIBs under dynamic loading was studied in this study. Drop‐weight tests of two types of indenter, namely, round and flat heads, were conducted. Strain rate and state of charge (SOC) effects on the mechanical properties of LIBs under different indenters were fully discussed. The interaction between mechanical performance and electrical behavior was studied. Experiments show that the structural stiffness of batteries increases with strain rate increase but exhibits little effect from SOC. Different indenters have a significant influence on the mechanical behavior of the prismatic LIBs. Under the same impact rate and SOC, the peak load of a flat head is considerably larger than that of a round head. The battery exhibits a hard short‐circuit under the impact of a round head and a soft short‐circuit under the impact of a flat head. This result shows that the larger the contact area between the indenter and the battery is, the larger the impact load under the same drop‐weight and impact rate will be, although the impact safety of the battery does not decrease. The results provide useful insights into the basic understanding of the electromechanical coupling integrity of LIBs.
TEACHER EFFICACY SCALE: THE STUDY OF VALIDITY AND RELIABILITY AND PRESERVICE CLASSROOM TEACHERS' SELF EFFICACY BELIEFS

The purpose of the present study was to explore the validity and reliability of the Turkish version of the Teacher Efficacy scale (TES) developed by Gibson and Dembo, and the differences among the beginning and ending pre-service classroom teachers’ self-efficacy beliefs. Data in this study were collected from a total number of 405 preservice classroom teachers. Descriptive statistics, principal component with varimax factor analysis, and t test were used to explore the data analyses. Results revealed that Gibson and Dembo’ two-factor TES may not be a valid tool to evaluate efficacy beliefs of preservice classroom teachers in Turkey.
Realization of a Carrier-based Discontinuous SVPWM Technique for Two-Phase Four-Leg Voltage Source Inverter

This paper presents the carrier based discontinuous space vector pulse width modulation (DSVPWM) for two-phase four-leg voltage source inverters (VSI) fed resistive and inductive loads. This proposed technique is focused on the switching losses and output current ripple reduction in each phase-leg of inverter which does not depends on the lagging and leading power factor load. In addition, the carrier based DSVPWM is modified from conventional two-phase four-leg VSI by replacing the zero space vector in each switching sequence. This proposed discontinuous modulation strategy has 180 degrees for unmodulated region. Experimental results provide the performance comparison between the discontinuous SVPWM (DSVPWM) and the traditional continuous SVPWM (CSVPWM) techniques to confirm the reduction of switching losses and output current ripple at high modulation index. The experimental results show that total average values of normalized switching losses of the DSVPWM and the CSVPWM are 7.908 and 11.174, respectively in which the proposed DSVPWM can reduce the switching losses from the conventional CSVPWM up to 29 percent. Streszczenie. W artykkule opisano nieciągła technikę modulacji szerokości impulsu DSVPWM zastosowaną w dwufazowych czterogałęźnym przekształtniku VSI obciążonym indukcyjnością i rezystancją. Projekt zakładał ograniczeniu strat przełączania i zafalowania prądu. Eksperymentalnie porównano zaprojektowany układ z tradycyjnym układem ciągłym. Nieciągła technika modulacji szerokości impulsu DSVPWM zastosowana w dwufazowych czterogałęźnym przekształtniku VSI do Przeglądu Elektrotechnicznego polski tytuł na końcu streszczenia Polish tittle at the end).
Securing Trust, Roles and Communication in E-Advising – Theoretical Inputs

Students claim to learn a lot from advising and feedback on assignments. This is one of the results in a survey amongst students at The Inland Norway University of Applied Sciences. Traditionally, advising is mainly a face-to-face activity. However, with an increasing number of courses offered online, it is timely to discuss how to conduct advising sessions online and using an online medium. The meeting between the student and advisor contains a number of factors; for example: eye contact, tone of voice and facial mimic. Many subtle features establish the relationship between the advisor and student. The student needs to communicate the assignment and to trust the advisor, at the other hand the advisor needs to be reassured that the student understand and trust the feedback. This paper discusses how written advising sessions can be undertaken using an online medium, and still maintain the roles, the trust and secure the communication.
Prosocial Behavior and Religion: New Evidence Based on Projective Measures and Peer Ratings

An important discrepancy seems to exist between self-reports and laboratory studies regarding prosociality among religious people. Some have even suggested that this involves moral hypocrisy on the part of religious people. However, the assumption of the four studies reported here is that the impact of religiousness on prosociality is limited but exists, and does not reflect self-delusion. In Study 1 (N = 106), religious young adults tended not to use indirect aggression in dealing with hypothetical daily hassles. In Study 2 (N = 105), female students' religiosity was associated with willingness to help close targets in hypothetical situations but the effect was not extended to unknown targets. In Studies 3 (N = 315, 105 triads) and 4 (N = 274, 109 targets), religious targets not only reported high altruistic behavior and empathy, but were also perceived as such by peers (friends, siblings, or colleagues) in three out of four cases. Other results from the studies suggested that the prosociality of religious people is not an artifact of gender, social desirability bias, security in attachment, empathy, or honesty.
Budgeting for Agile Product Development

Recent reports and predictions indicate a consistent and continuous growth in the field of Research and Development. Such growth leads to increased resource investments, which have to be managed effectively to eventually achieve value maximization. This management is cohesive with budgeting. In changing environments, said effectiveness can be difficult to attain.Agile development is supposed to provide the necessary flexibility for uncertain situations and has recently seen a stark adoption incline. Unfortunately, budgeting and resource allocation have not yet been resolved for agile approaches: a comprehensive research including recent publications showed a lack of models and frameworks for the adoption and application of budgeting with agile development. Due to this lack of a comprehensive approach, as well as limitations and restrictions of existing research, this paper describes the design of a budgeting approach suitable for and compatible with agile product development. The developed solution, the Structured Agile Budgeting Process, provides a holistic and interdisciplinary way to allocate resources while still allowing the flexibility and benefits of agile development.
A first course in abstract algebra

A Few Preliminaries. Mathematics and Proofs.Sets and Relations.Mathematical Induction.Complex and Matrix Algebra. 1. Groups and Subgroups. Binary Operations.Finite-State Machines (Automata). Isomorphic Binary Structures.Groups. Subgroups.Cyclic Groups and Generators.Cayley Digraphs. 2. More Groups and Cosets. Groups of Permutations.Automata. Orbits, Cycles, and the Alternating Groups.Plane Isometries.Cosets and the Theorem of Lagrange.Direct Products and Finitely Generated Abelian Groups.Periodic Functions, Plane Isometries.Binary Linear Codes. 3. Homomorphisms and Factor Groups. Homomorphisms.Factor Groups.Factor-group Computations and Simple Groups.Series of Groups.Group Action on a Set.Applications of G-sets to Counting. 4. Advanced Group Theory. Isomorphism Theorems Proof of the Jordan-Holder Theorem.Sylow Theorem.Applications of the Sylow Theory.Free Abelian Groups.Free Groups.Group Presentations. 5. Introduction to Rings and Fields. Rings and Fields.Integral Domains.Fermat's and Euler's Theorems.The Field of Quotients of an Integral Domain.Rings of Polynomials.Factorization of Polynomials over a Field.Noncommutative Examples.Ordered Rings and Fields. 6. Factor Rings and Ideals. Homomorphisms and Factor Rings.Prime and Maximal Ideals.Grobner Bases for Ideals. 7. Factorization*. Unique Factorization Domains.Euclidean Domains.Gaussian Integers and Norms. 8. Extension Fields. Introduction to Extension Fields.Vector Spaces.Algebraic Extensions.Geometric Constructions.Finite Fields.Additional Algebraic Structures. 9. Automorphisms and Galois Theory. Automorphisms of Fields.The Isomorphism Extension Theorem.Splitting Fields.Separable Extensions.Totally Inseparable Extensions.Galois Theory.Illustrations of Galois Theory.Cyclotomic Extensions.Insolvability of the Quintic. Bibliography. Notations. Answers To Odd-Numbered Exercises Not Requiring Proofs. Index. *Not required for the remainder of the text.
Nonperiodic Flipped EBG for Dual-Band SSN Mitigation in Two-Layer PCB

Several electromagnetic bandgap (EBG) structures have been designed to mitigate simultaneous switching noise (SSN) problems in dual bands in wireless local area networks (WLANs). In order to be applicable to two-layer printed circuit boards (PCBs), a novel flipped structure is introduced, which also creates slots for a wide stopband. This article proposes a $2 \times 2$ nonperiodic flipped-EBG (FEBG) for dual-band SSN mitigation in the WLAN, exhibiting noise suppression of 21 and 26 dB in 2.4–2.6 and 5–6 GHz bands, respectively. The simulation results are in good agreement with the experimental data. In addition, a method of positioning optimization is introduced as well to demonstrate the application of the FEBG on a two-layer PCB.