Miracle-dz/UniFAR-FTUs huggingface dataset:
Simulation and Analysis of HEMP Coupling Effect on a Wire Inside an Apertured Cylindrical Shielding Cavity

─ High altitude nuclear electromagnetic pulse (HEMP) can damage electronic equipments of radar and communication systems. Back door coupling is one of the main ways of HEMP attacks on the electronic devices. In this paper, the three-dimensional (3D) electromagnetic (EM) simulation software MicroStripes7.5, which is based on the transmission line matrix (TLM) method, are employed to investigate the HEMP coupling effect on a wire located inside a cylindrical shielding cavity having one or few apertures. The EM models of the wire and the apertured shielding cavity are constructed, and the induced wire currents through the aperture of cavity are simulated. By comparing the simulation results of the wire with and without shield of the cavity, the shielding effectiveness (SE) is calculated. Further, the effects on induced wire in various cases are compared and analyzed, including single-aperture and multiple-aperture, different incident angles, polarization angles, and wire locations. Also, the cylindrical cavity is compared with the rectangular cavity. Index Terms ─ Aperture, cylindrical cavity, EM simulation, HEMP, wire current.
Binaural Technique: Do We Need Individual Recordings?

The localization performance was studied when subjects listened 1) to a real sound field and 2) to binaural recordings of the same sound field, made a) in their own ears and b) in the ears of other subjects. The binaural recordings were made at the blocked ear canal entrance, and the reproduction was carried out with individually equalized headphones. Eight subjects participated in the experiments, which took place in a standard listening room. Each stimulus (female speech) was emitted from one of 19 loudspeakers, and the subjects were to indicate the perceived sound source. When compared to real life, the localization performance was preserved with individual recordings. Nonindividual recordings resulted in an increased number of errors for the sound sources in the median plane, where movements were seen not only to nearby directions, but also to directions further away, such as confusion between sound sources in front and behind. The number of distance errors increased only slightly with nonindividual recordings. Earlier suggestions that individuals might localize better with recordings from other individuals found no support.
Achieving High Absorbing Efficiency for an Electromagnetically Asymmetric Slab Made of Hyperbolic Metamaterials

An anisotropic medium with hyperbolic dispersion relation and tilted optical axis has been found to support two asymmetric propagating waves within its volume. With careful selection of design parameters one can achieve perfect matching with free space and huge spatial oscillation for the transmitted wave. If moderate losses are added, these properties can be used for the construction of very thin and efficient electromagnetic absorbers.
Study of Client Reject Policies under Lead-Time and Price Dependent Demand

Delivery lead-time has become a factor of competitiveness for companies and an important criterion of purchase for the customers today. Thus, in order to increase their profit, companies must not focus only on price but also need to quote the right delivery lead time to their customers. Some authors to find a way in quoting the right delivery lead-time while considering an M/M/1 system. In M/M/1, all customers are accepted. This can lead to longer lead times in the queue. Firms can react by quoting longer lead times in order to cope with this situation. However, this leads to lower demand and revenue. Starting from this observation, we investigate in this paper whether a customer rejection policy can be more beneficial for the firm than an all-customers’ acceptance policy. Indeed, our idea is based on the fact that rejecting some customers might help to quote shorter lead time for the accepted customers, which might lead to higher demand and profit. We model this rejection policy based on an M/M/1/K system. We analytically determine the optimal firm’s policy (optimal price and quoted lead time) in case of M/M/1/1 system. Then, we compare the optimal firm’s profit under M/M/1/1 with the optimal profit obtained by M/M/1. Two situations are considered: a system without holding and penalty costs and a system where these costs are included.
Multifractality signatures in quasars time series – I. 3C 273

The presence of multifractality in a time series shows different correlations for different timescales as well as intermittent behaviour that cannot be captured by a single scaling exponent. The identification of a multifractal nature allows for a characterization of the dynamics and of the intermittency of the fluctuations in non-linear and complex systems. In this study, we search for a possible multifractal structure (multifractality signature) of the flux variability in the quasar 3C 273 time series for all electromagnetic wavebands at different observation points, and the origins for the observed multifractality. This study is intended to highlight how the scaling behaves across the different bands of the selected candidate, which can be used as an additional new technique to group quasars based on the fractal signature observed in their time series and determine whether quasars are non-linear physical systems or not. The multifractal detrended moving average algorithm (MFDMA) has been used to study the scaling in non-linear, complex, and dynamic systems. To achieve this goal, we applied the backward (θ = 0) MFDMA method for one-dimensional signals. We observe weak multifractal (close to monofractal) behaviour in some of the time series of our candidate except in the mm, UV and X-ray bands. The non-linear temporal correlation is the main source of the observed multifractality in the time series whereas the heaviness of the distribution contributes less.
CONTRIBUTION OF GAMMA-RAY-LOUD RADIO GALAXIES’ CORE EMISSIONS TO THE COSMIC MeV AND GeV GAMMA-RAY BACKGROUND RADIATION

The Fermi gamma-ray satellite has recently detected gamma-ray emissions from radio galaxy cores. From these samples, we first examine the correlation between the luminosities at 5 GHz, L5 GHz, and at 0.1–10 GeV, Lγ, of gamma-ray-loud radio galaxies. We find that the correlation is significant with Lγ∝L1.165 GHz based on a partial correlation analysis. Using this correlation and the radio luminosity function (RLF) of radio galaxies, we explore the contribution of gamma-ray-loud radio galaxies to the unresolved extragalactic gamma-ray background (EGRB). The gamma-ray luminosity function is obtained by normalizing the RLF to reproduce the source-count distribution of the Fermi gamma-ray-loud radio galaxies. We find that gamma-ray-loud radio galaxies can explain ∼25% of the unresolved Fermi EGRB flux above 100 MeV and will also make a significant contribution to the EGRB in the 1–30 MeV energy band. Since blazars explain 22% of the EGRB above 100 MeV, radio-loud active galactic nucleus populations explain ∼47% of the unresolved EGRB. We further make an interpretation on the origin of the EGRB. The observed EGRB spectrum at 0.2–100 GeV does not show an absorption signature by the extragalactic background light. Thus, the dominant population of the origin of EGRB at very high energy (>30 GeV) might be either nearby gamma-ray-emitting sources or sources with very hard gamma-ray spectra.
Effect of Vitis Vinifera Leaf Hydroalcoholic Extract on Rat Urinary Bladder Contractility

: Several reports shown the various medicinal effects of grape ( Vitis vinifera ) seed and skin extracts, such as antioxidant, hypotensive and vasodilatory effects. It has been recently shown the relaxatory effect of grape leaf hydroalcoholic extract on rat ileum, uterus, aorta, trachea and vas deferens as well as on frog isolated heart. The aim of the present study was to investigate the effect of Vitis vinifera leaf hydroalcoholic extract (VLHE) on contractility of urinary bladder smooth muscle in male rats and to study the mechanism(s) of its action. M a t e r s n o : The extract of dried grape leaf was prepared by macerated method using 70% ethanol for 72h in room temperature. The solvent was then evaporated. Urinary bladder was removed from male adult wistar rats after induction of deep anaesthetize by di-ethyle-ether. Tissues were then suspended in the organ bath containing physiologic solution (37 o C, pH 7.4) bubbled with oxygen. Contractions were recorded isometrically under 1g resting tension. R e s u l t s : VLHE at 1, 2, 4 and 8 mg/ml significantly reduced the urinary bladder contractions evoked by KCl (60 mM; P <0.05) and (0.5, 1, 2 and 4 mg/ml) also reduced the contractions evoked by Acetylcholine (5 µM) dose dependently ( P <0.05). In calcium free physiologic solution, KCl-induced (120 mM; P <0.05) contractions were occurred only after adding calcium (0.312, 0.625, 1.25, 2.5 and 5 mM) to the organ bath solution. VLHE (2 mg/ml) also reduced different concentration of calcium-induced contraction in the presence of KCl ( P <0.05). The VLHE- induced urinary bladder relaxation was unaffected by propranolol (1 µM for 20 mins) while the presence of tetraethylamonium (10 mM for 20 mins) could strongly reduce the relaxatory effect of VLHE. C o n c l u s i o n : The data suggest that VLHE induces spasmolytic effect in rat urinary bladder, possibly via blocking voltage dependent calcium channels and activation of calcium-activated potassium channels.
Fractional Parker equation for the transport of cosmic rays: steady-state solutions

Context. The acceleration and transport of energetic particles in astrophysical plasmas can be described by the so-called Parker equation, which is a kinetic equation comprising diffusion terms both in coordinate space and in momentum space. In the past years, it has been found that energetic particle transport in space can be anomalous, for instance, superdiffusive rather than normal diffusive. This requires a revision of the basic transport equation for such circumstances. Aims. Here, we extend the Parker equation to the case of anomalous diffusion by means of fractional derivatives that generalize the usual second-order spatial diffusion operator. Methods. We introduce the left and right Caputo fractional derivatives in space. These derivatives are one of the tools used to describe anomalous transport. We consider the case of steady-state solutions upstream and downstream of a planar shock. Results. We obtain an estimate of the particle acceleration time at shocks in the case of superdiffusion. An analytical solution of the steady-state fractional Parker equation is given by the Mittag-Leffler functions, which correspond to a power-law profile for the energetic particle intensity far upstream of the shock, in agreement with the results obtained from a probabilistic approach to superdiffusion. These functions also correspond to a stretched exponential close upstream of the shock. Conclusions. These results can help to model more precisely the measured fluxes of energetic particles that are accelerated at both interplanetary shocks and supernova remnant shocks.
Removal of textile dye by adsortion on the cake as solid waste from the press-extraction of the macaúba (Acrocomia aculeata) kernel oil

The textile industries face difficulties in removing dyes from the liquid effluent, even after what is thought to be conventional cleaning treatments. The use of adsorbents to retain dyes in textile effluents has been showing to be a simple and promisingly efficient method. The objective of this research was to test the macaúba (Acrocomia aculeata) kernel cake as adsorbent to remove Remazol Brilliant Blue dye in batch adsorption tests. The obtained adsorption kinetic data at equilibrium were modeled by assuming both the Langmuir and the Freundlich isotherms. The values were better fitted with the Langmuir model (R2 = 0.983), with a maximum adsorption capacity of 3.5 mg g-1 monolayer. This essay showed that the macaúba cake is an effective adsorbent to remove Remazol Brilliant Blue textile dye and it is a good alternative for treatment of textile liquid effluents.
Vacuum diffusion welding of stainless steel through porous nickel interlayers

Features of formation of permanent joints by diffusion welding through an intermediate interlayer based on porous nickel, produced by vapour phase vacuum deposition (EB PVD) were studied in the case of stainless steel Kh18N10T. It is shown that application of vacuum porous nickel condensates promotes lowering of temperature-force parameters of diffusion welding (welding temperature of 800 °C + cyclic load with 20 MPa amplitude). Such an influence of the interlayer on the conditions of producing the welded joints is associated with superplastic behaviour of porous nickel and its non-equilibrium structure (small grain size and presence of vacancy type defects). It is established that pore healing in the interlayer is observed and diffusion processes between the interlayer and stainless steel are activated during diffusion welding. This results in formation of a defectfree zone of the joint based on nickel, alloyed with iron and chromium with strength properties only slightly different from those of base metal. 18 Ref. , 6 Figures.
Improving LTE Femtocell Base Station Network Performance by Distributed Power Control

LTE femtocell base stations (FBSs) have expanded the coverage of wireless communication systems. The growing use of FBSs has brought a serious issue of inter-FBS interference (also referred to as co-tier interference) due to their easy and convenient installation. This study proposes a systematic approach to reduce FBS co-tier downlink interference. In this study, FBSs are densely deployed in an environment and femtocell user equipment (FUEs) detect interference from FBSs and send an alarm signal to each FBS which interferes with it. To minimize the negative effects of interference, power levels are reduced for FBSs identified as excessive interference sources, which are defined as FBSs that have received a number of alarm signals over a given threshold. The method proposed in this study has been validated through simulation and is found to effectively reduce co-tier downlink interference in shared-spectrum femtocell environments, thereby improving system performance.
Predicting Biomass from Snout–Vent Length in New World Frogs

Abstract In this study, we determined how well the snout–vent length (SVL) of anurans estimated their mass for 36 species in the New World. Linear regressions of log-mass on log-SVL were highly significant for all species, explaining more than 75% of the mass variation in most species, and over 50% of the mass variation in all species. We also investigated differences in the mass/SVL relationship within species, comparing juveniles to adults, females to gravid females, and males to females, to determine the importance of developing separate regressions for sex or life-stage classes. Three of six tests between juveniles and adults, and two of nine tests between females and gravid females, indicated statistically significant differences, although these differences had only minor effects on mass estimates. More statistical differences in regression equations occurred between males and females; again, these differences were unimportant for estimates of mass in some cases, but they were important where there was strong sexual size dimorphism within a species. Continued collection of both SVL and mass data in new field studies of anurans will provide broader analyses of mass/SVL regressions. These species regressions along with data on density can be used to determine anuran community biomass.
Real-time $\ell^1$ -- $\ell^2$ deblurring using wavelet expansions of operators

Image deblurring is a fundamental problem in imaging, usually solved with computationally intensive optimization procedures. We show that the minimization can be significantly accelerated by leveraging the fact that images and blur operators are compressible in the same orthogonal wavelet basis. The proposed methodology consists of three ingredients: i) a sparse approximation of the blur operator in wavelet bases, ii) a diagonal preconditioner and iii) an implementation on massively parallel architectures. Combing the three ingredients leads to acceleration factors ranging from 30 to 250 on a typical workstation. For instance, a 1024 × 1024 image can be deblurred in 0.15 seconds, which corresponds to real-time.
The Double Life of Writers

If Pierre Bourdieu seldom questioned the conditions under which literary autonomy exists or is maintained, it is obviously because he conceptualized the social worlds he was studying after the model of the scientific or academic field, that is, based on the example of institutionalized, codified, and (in the economic sense) professionalized social worlds that have largely resolved the question of this type of autonomy. These institutionalized universes, 2 through admissions policies based on degrees, (competitive) exams, and appointments, as well as in the regulation of different “career stages,” offer real professions to the major agents in the field (researchers or teacher-researchers in philosophy, physics, mathematics, sociology, et cetera), who, out of professional obligation, can and must fully devote themselves to their work. These fields, which provide their members with “full-time” jobs and thus constitute their primary universe of social membership, are quite different from other universes, such as the literary universe, to which people are, most frequently, linked only in a secondary fashion, objectively speaking, even if some consider their connection to this world to be their principal connection. How does the writer who leads a parallel life as a teacher, librarian, job trainer, lawyer, journalist, physician, psychologist, business manager, or farmer, who “exists” in literature only intermittently or part time, compare with the physician, philosopher, business manager, lawyer, or farmer who engages in activities in his or her respective social universes in a complete and continuous manner? By adopting a structural or even structuralist method, we may consider works of literature independently of who their producers are and what they do (“inside the field” and “outside the field”), and independently of the concrete social conditions of their production. Structuralism applied to literary works thus results in the erasure of the writer by the work, echoing the views of Paul Valery, as recalled by Gerard Genette: “Valery dreamed of a history of Literature understood ‘not so much as a history of authors and the accidents of their careers, or that of their works, than as a History of the mind, insofar as it produces or consumes
Soil Moisture Drought in China, 1950–2006

AbstractFour physically based land surface hydrology models driven by a common observation-based 3-hourly meteorological dataset were used to simulate soil moisture over China for the period 1950–2006. Monthly values of total column soil moisture from the simulations were converted to percentiles and an ensemble method was applied to combine all model simulations into a multimodel ensemble from which agricultural drought severities and durations were estimated. A cluster analysis method and severity–area–duration (SAD) algorithm were applied to the soil moisture data to characterize drought spatial and temporal variability. For drought areas greater than 150 000 km2 and durations longer than 3 months, a total of 76 droughts were identified during the 1950–2006 period. The duration of 50 of these droughts was less than 6 months. The five most prominent droughts, in terms of spatial extent and then duration, were identified. Of these, the drought of 1997–2003 was the most severe, accounting for the majority.
Comparison of Effective Coverage Calculation Methods for Image Quality Assessment Databases

This article provides a comparison of a three methods that can be used for calculating effective coverage of image quality assessment database. The aim of this metric is to show how well the database is filled with variety of images. For each image in the database the Spatial Information (SI) and Colorfulness (CF) metric is calculated. The area of convex hull containing all the points on SI x CF plane is indication of total coverage of the database, but it does not show how efficiently this area is utilized. For this purpose an effective coverage was introduced. An analysis is performed for 16 databases - 13 publicaly available and 3 artificial created for the purpose of showing advantages of the effective coverage.
ON POPULATION , FAMILY AND WELFARE No 14 FACTORS AFFECTING THE REALISATION OF CHILD-BEARING INTENTIONS IN FOUR EUROPEAN COUNTRIES by Balázs

This study investigates the realisation of time-rel at d positive fertility intentions using a comparative approach. Four European countri es of medium size are compared, all with rather different fertility regim es: the Netherlands and Switzerland (Western), and Hungary and Bulgaria (Po st-c mmunist). Using four harmonised longitudinal panel surveys, it is possib le to construct a typology of fertility intentions and outcomes, and not only to identify common patterns but also different influencing factors in each country. By e mploying multinominal logistic regressions, we uncover factors influencing postpon ement, abandonment and realisation of childbearing. In all four countries, age, partnership status and education appear to influence fertility intentions i the same ways. However, the effects of some of these factors do differ in the f our countries that we focus on.
Colliding Terminological Systems—Immanuel Kant and Contemporary Empirical Aesthetics

Few classic philosophers are as popular as Immanuel Kant. Kant’s ideas seem to be used ubiquitously in contemporary aesthetics discussions. Here, we critically review the way his ideas are being applied in empirical research. We focus on the four moments presented in the Critique of the Power of Judgment (first published in 1790) and show that Kant’s precise (and sometimes counter-intuitive) use of language paired with his complex transcendental framework make interpretation of his work difficult. In some cases, colliding terminological systems easily lead to misinterpretations of his ideas. Further complicating matters, Kant developed a coherent and static description of judgments on the beautiful, while modern empiricists conduct experiments to construct a dynamic explanation of aesthetic experiences. These two approaches are difficult to reconcile. We outline points of tension and also areas where his ideas relate to and might motivate productive research questions.
Interaction of Lexical and Grammatical Aspect in Language Processing

Temporal cues such as lexical and grammatical aspect contribute to the construction of situation models in the human mind (Zwaan & Radvansky 1998). Previous studies on English, Cantonese, Mandarin and Japanese show that, with accomplishment verbs, perfective sentences are processed faster than imperfective sentences (Madden & Zwaan, 2003; Chan et al., 2004; Yap et al., 2004, in press). However, subsequent studies on Cantonese show that, with activity verbs, imperfective sentences are processed faster than perfective sentences (Yap et al., 2006). In complex environments involving both accomplishment and activity verbs, results from the Cantonese studies show that the imperfective advantage with activity verbs remains robust, but the perfective advantage with accomplishment verbs disappear. The present study on Korean, a tensed language, shows similar results to Cantonese, a tenseless language. Our findings suggest that lexical aspect interacts with grammatical aspect to influence language processing. In this paper the observed aspectual asymmetries are explained in terms of a prototype account.