Miracle-dz/UniFAR-FTUs huggingface dataset:
Visualisation scientifique interactive de grands volumes de données : pour une approche perceptive

L’explosion de la puissance de calcul permet actuellement de realiser des simulations physiques comportant jusqu’a plusieurs milliards d´elements. Pour extraire l’information importante de tels volumes de donnees, les ingenieurs doivent disposer d’outils de visualisation permettant d’explorer et d’analyser interactivement les champs calcules. Cette these vise a ameliorer les visualisations realisees en prenant en compte les caracteristiques de la perception visuelle chez l’homme, notamment en ce qui concerne la perception de l’espace et du volume au cours de visualisations 3D denses. D��abord, trois experiences de psychophysique ont montre que les rendus volumiques, reposant sur l’accumulation ordonnee de transparences, generent des difficultes importantes de perception de la profondeur. Cela est particulierement vrai lors de visualisations statiques, mais l’ajout de mouvement dans la scene ainsi que l’amplification de la projection perspective permettent de lever en partie ces ambiguites. Ensuite, deux algorithmes ameliorant la perception de l’espace lors de la visualisation de structures tridimensionnelles complexes ont ete developpes. Leur implementation sur GPU permet des rendus interactifs independamment de la nature geomerique des donnees visualisees. L’EyeDome Lighting, un nouvel ombrage non photorealiste base sur l’image de profondeur, ameliore la perception des formes et des profondeurs dans des scenes 3D complexes. Par ailleurs, une nouvelle technique d'ecorche dependant du point de vue a ete implementee. Elle autorise la visualisation d’objets normalement occultes tout en rendant compte de la structure des surfaces masquantes.
Tiechanshan-Tunghsiao anticline earthquake analysis: Implications for northwestern Taiwan potential carbon dioxide storage site seismic hazard

We analyze the seismicity and earthquake focal mechanisms beneath the Tiechanshan-Tunghsiao (TCS-TH) anticline over the last two decades for seismic hazard evaluation of a potential carbon dioxide storage site in northwestern Taiwan. Seismicity in the TCS-TH anticline indicates both spatial and temporal clustering at a depth range of 7 12 km. Thirteen 3.0 ≤ ML ≤ 5.2 earthquake focal mechanisms show a combination of thrust, strike-slip, and normal faulting mechanisms under the TCS-TH anticline. A 1992 ML 5.2 earthquake with a focal depth of ~10 km, the largest event ever recorded beneath the TCS-TH anticline during the last two decades, has a normal fault mechanism with the T-axis trending NNE-SSW and nodal planes oriented NNW-SSE, dipping either gently to the NNE or steeply to the SSW. Thrust fault mechanisms that occurred with mostly E-W or NWW-SEE striking P-axes and strike-slip faulting events indicate NWW-SEE striking P-axes and NNE-SSW trending T-axes, which are consistent with the regional plate convergence direction. For the strike-slip faulting events, if we take the N-S or NNW-SSE striking nodal planes as the fault planes, the strike-slip faults are sinistral motions and correspond to the Tapingting fault, which is a strike-slip fault reactivated from the inherited normal fault and intersects the Tiechanshan and Tunghsiao anticlines. Article history: Received 13 March 2012 Accepted 21 September 2015
Comparative Study of the Behavior of a Wind Farm Integrating Three Different FACTS Devices

Improving grid connection of wind farms is a relevant issue to be addressed, especially for fixed-speed wind turbines. Certain elements, such as FACTS (Flexible AC Transmission Systems), are able to perform voltage and reactive power regulation in order to support voltage stability of wind farms, and compensate reactive power consumption from the grid. Several devices are grouped under the name of FACTS, which embrace different technologies and operating principles. Here, three of them are evaluated and compared, namely STATCOM (Static Synchronous Compensator), SVC (Static Var Compensator) and SSSC (Static Synchronous Series Compensator). They have been modeled in MATLAB / Simulink, and simulated under various scenarios, regarding both normal operation and grid fault conditions. Their response is studied together with the case when no FACTS are implemented. Results show that SSSC improves the voltage stability of the wind farm, whereas STATCOM and SVC provide additional reactive power.
Performance Evaluation of the Modified Iterative Closest Point Methods for Intra-operative Ultrasound and Pre-operative MR Image Registration of Brain

Purpose : Intra-operative ultrasound imaging as a non-ionized and being real time has been found very applicable as an intra-operative update of patient data in image guided neurosurgery system. The main point is the accurate registration of intra-operative with pre-operative images. Due to speckle noise in ultrasound images, scale differentiation between MR and ultrasound images and their different resolution, an accurate registration of ultrasound images with pre- operative MR images is a challenging problem. Methods : In this paper the effect of different steps of the Iterative Closest Point is considered and, then, the best modified version of ICP is introduced for this type of data. To perform this study, a Poly Vinyl Alcohol-Cryogel brain phantom is used which allows simulating brain deformation. The performance of the best version of ICP is compared to a well-known point based algorithm, Coherent Point Drift in terms of accuracy and speed. Results : The results proved CPD algorithm was more robust than ICP algorithms in the presence of noise, although with a more computational cost. Changing different steps in conventional ICP has led to improve the performance of the ICP. As the results of our phantom study confirm the best version of ICP has not only achieved an accuracy close to CPD method, but also in a much faster approach. Conclusion : According to a trade off between the speed and accuracy of nine implemented versions of ICP algorithms, using some modified version of ICP is preferred to CPD method.
Cellular structures in simulated squall lines with moist absolutely unstable layers [presentation]

The structure and intensity of deep convective cells has implications for the development of severe weather in convective lines. For example, deep, intense cells would be more likely to produce large hail. Furthermore, surface wind gusts produced by convective downdrafts would also be more likely to produce severe conditions in cells that are large and intense. In contrast, if convective cells are weaker, one would expect a comparatively lower likelihood of severe weather. Therefore, an understanding of when strong cells are expected, and when they are not, might have value in severe weather prediction.
Fiscal Policies in the European Union during the Crisis

The paper studies the fiscal policies implemented in the European Union countries since the beginning of the current crisis. With this aim in mind we have analyzed separately the expansionary fiscal policies implemented at the first stage of the crisis and the fiscal consolidation policies that became widespread at the beginning of the current decade. Studying the content of the national fiscal policies (discretionary measures versus built-in stabilizers, revenue- based versus expenditure-based fiscal policies, the relationship existing between the size of the fiscal impulses-adjustments and the composition of these measures) shows the significant differences between the fiscal policies implemented in the European Union countries.
A Symmetrical Outputs Uniplanar Out-of-Phase Power Divider without Phase Shifter

A new out-of-phase power divider (PD) without phase shifter at the output ports is proposed. Based on admittance matrix, a new topology of uniplanar power divider with symmetrical outputs is designed. Under conditions of good matching, perfect isolation, and 180 ◦ phase difference between two output ports, the corresponding design equations and synthesis procedures are derived and given with admittance matrix. To verify the design approach, an out-of-phase power divider operating at 2 GHz with equal power division ratio is designed, fabricated, and measured. Experimental results demonstrate that the input return loss is better than 32 dB, the insertion loss is less than 0.29 dB and the isolation is better than 33 dB. The amplitude imbalance between the output ports is 0.03 dB and the phase difference between the two output ports is 181.6 ◦ at the operation frequency. Further more, 49.9% relative bandwidth of 15 dB return loss and 39.4% relative bandwidth of 20 dB port isolation are achieved.
Expository Aspect Clustering Design For Shared Substance Among Micro-Clusters

: We extend and assess another method to address this bother for smaller scale group basically based calculations. We present the idea of a common thickness chart which expressly catches the thickness of the special data between miniaturized scale groups for the span of bunching after which indicate how the diagram might be utilized for reclustering smaller scale groups. This is a particular approach on account that fairly on relying on presumptions about the dissemination of records directs appointed toward a microcluster (frequently a Gaussian appropriation cycle a center), it gauges the thickness in the common area among microclusters immediately from the records. To the top notch of our understanding, this paper is the first to propose and explore utilizing a common thickness fundamentally based reclustering procedure for records dissemination bunching. In this paper we advocate a fresh out of the plastic new informationtheoretic troublesome calculation for work/state bunching and utilize it on content sort. Existing systems for such "distributional grouping" of words are agglomerative in nature and result in (I) sub-best word bunches and (ii) high computational expense. With a specific end goal to unequivocally catch the optimality of word groups in an realities theoretic system, we initially determine a universal paradigm for work bunching. We at that point blessing a fast, troublesome arrangement of principles that monotonically diminishes this objective trademark expense. We show that our arrangement of guidelines limits "within group Jensen-Shannon uniqueness" in the meantime as all the while boosting the "between-bunch Jensen-Shannon disparity". As opposed to the already proposed agglomerative methodologies our troublesome arrangement of tenets is significantly quicker and accomplishes practically identical or higher class exactnesses. We additionally show that element grouping is a viable approach for building littler style models in various leveled sort. We introduce unmistakable trial impacts the use of Naive Bayes and Support Vector Machines at the 20Newsgroups records set and a three-level progressive system of HTML documents amassed from the Open Directory challenge.
Synthesis and Crystal Structure of Unexpected ( 1 S , 4 R , 5 R , 6 S )-4-cyano-2 , 2 , 6-1 trimethyl-3-azabicyclo [ 3 . 3 . 1 ] nonan-6-yl acetate 2

The reaction of (-)-β-pinene with KCN under a mild bridged Ritter reaction gave (1S,5R,6S)-2,2,69 trimethyl-3-aza-bicyclo[3.3. 1]non-3-en-6-yl acetate that subsequently reacted to provide an 10 unexpected (1S,4R,5R,6S)-4-cyano-2,2,6-trimethyl-3-azabicyclo[3.3. 1]nonane-6-yl acetate. The 11 structure of the compound was determined by HRMS, IR, NMR and confirmed by single crystal X12 ray crystallography. The compound crystallises in the monoclinic P21 space group, with unit cell 13 parameters a = 8.6120 (17), b = 7.4570 (15), c = 11.189 (2) Å, β = 110.16 (3)°. 14
Molecular detection of Wolbachia and phage WO infection in Spodoptera litura. (Lepidoptera: Noctuidae)

In nature the kind of association that we observe frequently between the eukaryotes and microorganisms is symbiotic, and range along the continuum between parasitism and mutualism. The genus Wolbachia contains well-known intracellular bacteria of arthropods that induce several reproductive phenotypes that benefit the transmission of the bacteria. While this process is facilitated by features of Wolbachia, particularly their ability to cause cytoplasmic incompatibility, blocking Wolbachia may produce deleterious effects, such as reduced host viability or fecundity, that inhibit successful local introductions and subsequent spatial spread, parthenogenesis, feminization, male killing and many other reproductive manipulations. The present study using PCR technology based on Wolbachia specific amplification of the ftsZ A and ftsZ B supergroup and phage WO specific amplification of orf-2 and orf-7 gene fragments not only confirms the presence of B supergroup Wolbachia but also reveals the presence of Wolbachia infected with phages WO in Spodoptera litura. Further, we constructed the molecular phylogeny of Wolbachia ftsZ B strain.Thereby this result creates possible implications of cytoplasmic bacteria Wolbachia and phage WO infection for the management Spodoptera litura a serious menace of agricultural crops.
An autoassociator for automatic texture feature extraction

This paper presents an autoassociator neural network for texture feature extraction. Texture features are extracted through the hidden layer of an autoassociator. The Resilient Propagation (RP) algorithm was employed to train the autoassociator with the texture input and output patterns. The performance of the feature extractor was evaluated on Brodatz benchmark database. A detail analysis of the results is included. The results and analysis showed that the autoassociator is capable of extracting texture features better than the other traditional techniques.
Comparison of mineral spray oil, Confidor, Dursban, and Abamectin used for the control of Phyllocnistis citrella (Lepidoptera: Gracillaridae), and an evaluation of the activity of this pest in citrus orchards in northern Iran

The efficacy of three types of mineral spray oil (MSO), and Abamectin plus MSO to control the citrus leafminer Phyllocnistis citrella Stainton were compared with the conventional broad spectrum pesticides, Confidor, and Dursban, in two citrus orchards in northern Iran. Differences were found among the various concentrations of MSO in the number of mines and live larva per leaf, sampled 5 days after the application of 3 sprays at an interval of 5 days. Mineral spray oil applied at a rate of ≥ 0.65% in water, showed no significant differences when compared with Confidor, and Dursban. Abamectin plus MSO at a rate of 0.02% plus 0.50% in wa- ter respectively, provided the highest level of control and reduced the population of larva up to 85%. Generally, a concentration of ≥ 0.65% MSO in water caused a significant damage reduction. However, by reducing the MSO concentration, the rate of control was decreased. In another field experiment conducted in mature citrus orchards, the effect of two pest management types (applying just MSO vs. usage of synthetic pesticides) on the activity of P. citrella, was evaluated. The comparison results indicated that there is more P. citrella damage in orchards under pressure of synthetic pesticides than in orchards in which the synthetic pesticides were eliminated for years.
Towards a philosophy of academic publishing

Abstract This article is concerned with developing a philosophical approach to a number of significant changes to academic publishing, and specifically the global journal knowledge system wrought by a range of new digital technologies that herald the third age of the journal as an electronic, interactive and mixed-media form of scientific communication. The paper emerges from an Editors' Collective, a small New Zealand-based organisation comprised of editors and reviewers of academic journals mostly in the fields of education and philosophy. The paper is the result of a collective writing process.
Facts versus feelings? The effectiveness of hard versus soft sell appeals in online advertising

In two experimental studies, the advertising effects of hard versus soft sell appeals are investigated. Both studies show that in online advertising (banner ads and viral video ads), soft sell appeals in advertisements on high involvement products generate a more positive attitude towards the ad than hard sell appeals. In print advertising however, hard sell appeals lead to a more positive Aad, due to the fact that the advertisement is perceived as less irritating and more credible. Additionally, study II revealed that using soft sell appeals in viral video ads leads to a higher intention to share, due to the generation of a positive attitude towards the ad.
Evaluation of sub daily satellite rainfall estimates through flash flood modelling in the Lower Middle Zambezi Basin

Abstract. Flash floods are experienced almost annually in the ungauged Mbire District of the Middle Zambezi Basin. Studies related to hydrological modelling (rainfall-runoff) and flood forecasting require major inputs such as precipitation which, due to shortage of observed data, are increasingly using indirect methods for estimating precipitation. This study therefore evaluated performance of CMORPH and TRMM satellite rainfall estimates (SREs) for 30 min, 1 h, 3 h and daily intensities through hydrologic and flash flood modelling in the Lower Middle Zambezi Basin for the period 2013–2016. On a daily timestep, uncorrected CMORPH and TRMM show Probability of Detection (POD) of 61 and 59 %, respectively, when compared to rain gauge observations. The best performance using Correlation Coefficient (CC) was 70 and 60 % on daily timesteps for CMORPH and TRMM, respectively. The best RMSE for CMORPH was 0.81 % for 30 min timestep and for TRMM was 2, 11 % on 3 h timestep. For the year 2014 to 2015, the HEC-HMS (Hydrological Engineering Centre-Hydrological Modelling System) daily model calibration Nash Sutcliffe efficiency (NSE) for Musengezi sub catchment was 59 % whilst for Angwa it was 55 %. Angwa sub-catchment daily NSE results for the period 2015–2016 was 61 %. HEC-RAS flash flood modeling at 100, 50 and 25 year return periods for Angwa sub catchment, inundated 811 and 867 ha for TRMM rainfall simulated discharge at 3 h and daily timesteps, respectively. For CMORPH generated rainfall, the inundation was 818, 876, 890 and 891 ha at daily, 3 h, 1 h and 30 min timesteps. The 30 min time step for CMORPH effectively captures flash floods with the measure of agreement between simulated flood extent and ground control points of 69 %. For TRMM, the 3 h timestep effectively captures flash floods with coefficient of 67 %. The study therefore concludes that satellite products are most effective in capturing localized hydrological processes such as flash floods for sub-daily rainfall, because of improved spatial and temporal resolution.
Differential responses of phenolic compounds of Brassica napus under drought stress.

This work evaluated the effect of drought stress on seedling growth, protein, soluble sugars, and phenolic compounds of two cultivars of canola (RGS003 and Sarigol). Drought stress was induced with polyethylene glycol (PEG) at 0, 5, 10, and 15%. Drought stress increased root fresh weight in both cultivars and the effect of drought was more pronounced in RGS003. Shoot fresh weight reduced in Sarigol at 10 and 15% of PEG. Drought stress significantly increased seedling fresh weight in RGS003. Sarigol accumulated higher amounts of protein as compared to RGS003. At all PEG concentrations, the soluble sugars contentwas higher in Sarigol as compared to control. Total phenol content was enhanced at higher drought level (15%) while flavonol content increased at lower level (5%) in both cultivars. Phenylalanine ammonia-lyase (PAL) activity and its relative expression were increasedin RGS003 at 10% of PEG. Overall, RGS003 cultivar had more capacity to tolerate drought stress than Sarigol cultivar.
Latino Youth as Information Leaders: Implications for Family Interaction and Civic Engagement in Immigrant Communities

This study contemplates implications of Latino adolescents acting as information leaders in helping immigrant families to cope in a new culture. We highlight the heuristic value of thinking about the family as a venue for exchanges of information that, in turn, promote educational aspiration and civic inclinations. This framework is refined by insights obtained from an immigrant community in northern Colorado. We recruited high school students for a survey that documented media use, deliberative dispositions, and orientations toward political participation. Results from the survey guided focus group sessions in which youth and parents conveyed how they experience information flow in family interaction. We find that assimilation is both embraced and resisted in family communication, as parents and children work out tensions between Latino and Anglo values. Information with life-enhancing implications must flow through the family for it to be meaningfully shared, evaluated, comprehended, and acted upon. The vetting process is thwarted when parents and youth live in separate information ecologies, or when parents perceive information as a challenge to their authority. We conclude with recommendations for initiatives that enhance adolescents’ capacity as information leaders while also enlisting parents in the sharing of information.
Dynamic Welfare Cost of Stagnation: An Alternative Measure to the Lucas–Obstfeld Model

The present paper proposes an alternative measure to the Lucas–Obstfeld model to analyze the welfare costs of stagnation, and provides a practical illustration of both the Lucas–Obstfeld model and the alternative model. Compared with the Lucas–Obstfeld model, the alternative model can evaluate: (i) whether policy was implemented in a timely fashion; (ii) whether the policy cost was expensive compared with the cost of stagnation; and (iii) whether the policy implemented was effective or whether an additional policy is required.
ROBERT SCHUMAN CENTRE FOR ADVANCED STUDIES Lena Kitzing and Sascha T. Schröder REGULATING FUTURE OFFSHORE GRIDS: ECONOMIC IMPACT ANALYSIS ON WIND PARKS AND TRANSMISSION SYSTEM OPERATORS

The increasing development of offshore wind parks in the European offshore territory may lead to meshed offshore grids in which each wind park might be connected to several countries. Such offshore grids could be subject to various regulatory regimes, depending on the degree of cooperation between the respective countries. This study focuses on how investors in wind parks and transmission systems are affected by the choice of regulatory regime in offshore grids with one to four countries connected. In order to capture the uncertainties related to the exposure to market prices as well as risks related to line failures, we develop a stochastic model for an exemplary wind park and offshore grid. This yields the real option values of operational flexibility from additional connections. Simulation results show that the choice of regulatory regime, including market access and pricing rules, can have a significant impact on the value of a wind park and on the value of the interconnection capacity in the offshore grid. The impact can both be positive and negative, implying a complex incentive structure for the involved actors. If contrary effects are not reflected in the remuneration level of a wind park, for example in the price premium level, investment incentives could either be diminished or the wind park could incur windfall profits. Both cases are socio-economically suboptimal as they may pose additional cost to the system. Policy makers should consider these findings when designing the regulatory regime and level of support in an offshore grid in order to maintain an effective and efficient development of offshore wind in Europe.