Miracle-dz/UniFAR-FTUs huggingface dataset:
Structured-grid multigrid with Taylor-Hood finite elements

Recent years have seen renewed interest in the numerical solution of the Stokes Equations. At the same time, new computational architectures, such as GPUs and manycore processors, naturally perform best with the regular data access and computation patterns associated with structured-grid discretisations and algorithms. While many preconditioning approaches ignore the underlying mesh geometry, our approach is to develop a structured-grid implementation, taking advantage of the highly structured data-access patterns and employing stencil-based calculations. This opens up many opportunities for fine-grained parallelism, allowing us to take advantage of multicore and accelerated architectures. In this thesis, we will consider an implementation of a structured-grid monolithic Multigrid approach for Q2-Q1 finite-element discretisations, comparing its efficiency to an unstructured grid solver implemented in Trilinos. With the aim to eventually target large heterogeneous systems, we will discuss an implementation for moving from a serial code to the GPU by means of OpenCL and compare the efficiency of all three versions. Speedup factors of about 6.3x were observed for the GPU implementation over a serial implementation in Trilinos for a problem on a 768x768 mesh in 2D.
Combustion regime identification on a bluff-body burner by using experimental PLIF-OH images and RANS numerical simulations

The aim of this work is to determine the different combustion regimes in a classical turbulent combustion diagram (Reynolds vs Damkohler), in order to qualify the turbulent flames that are obtained at the bluff-body experimental apparatus of the Combustion and Turbulence Laboratory at PUC–Rio. Additionally, the purpose is to estimate the influence of different fuel types (e.g. natural gas and hydrogen) on the combustion regimes. The velocity of the fuel (oxidizer) stream was varied between 0.4 and 50.0 m/s (1.2 and 11.7 m/s) in order to get representative experimental results for each flame regime within the diagram. Instantaneous and time-averaged flames thickness were obtained from the images captured via Planar Laser induced Fluorescence of the Hydroxyl Radical (PLIF-OH). Reynolds Averaged Navier Stokes (RANS) models were employed to determine the turbulence characteristics of the flow field, in terms of the dimensionless Reynolds and Damkohler numbers. The determination of the Damkohler number also required the construction of specific flamelets libraries. The experiment allowed to investigate several combustion regimes, including the laminar flame regime, the flamelet regime and the unsteady effects regime, each of which was obtained for a large range of Reynolds and Damkohler numbers. The comparison of the combustion regimes actually obtained experimentally with those estimated by using the classical regime diagram evidences the shortcomings of such a simplified approach.
Detergensi Natrium Dodesilbenzen Sulfonat dengan Penambahan Natrium Tripolifosfat dan Variasi pH

Detergensi dapat ditingkatkan dengan penambahan natrium tripolifosfat dan mengatur pH pada saat pencucian. Detergensi yang dipelajari adalah detergensi natrium dodesilbenzen sulfonat hasil sintesis. Natrium dodesilbenzen sulfonat diperoleh dengan reaksi alkilasi, sulfonasi dan netralisasi. Produk dianalisis menggunakan FTIR dan uji detergensi produk dilakukan dengan mencuci kain katun dengan ukuran 10x10 cm yang telah dikotori dengan kotoran standar tanpa dan dengan penambahan natrium tripolifosfat dan variasi pH. Produk sintesis yang diperoleh berupa kristal abu- abu sebanyak 2,83 gram (rendemen 48,38 %). Pada uji detergensi, diperoleh bahwa daya detergensi optimum dari natrium dodesilbenzen sulfonat pada penambahan 70% natrium tripolifosfat. Semakin bertambahnya pH, semakin meningkatkan detergensi dan maksimum pada pH = 11,5
Environments of the Russian Plain during the Middle Valdai Briansk Interstade (33,000–24,000 yr B.P.) Indicated by Fossil Mammals and Plants

Abstract Abundant mammal (45 localities) and plant (52 sections) fossil data collected from the Russian Plain deposits of the Middle Valdai Briansk Interstade indicate a period of noticeable warming. These materials were jointly analyzed. The data were organized in the database software PARADOX and then moved to the GIS program ARC/INFO. Mathematical methods as well as traditional research methods were used for the analysis. The reconstructed biogeographical provinces illustrate the specific environmental and climatic conditions of the Briansk Interstade. Analogues of modern natural zones did not exist at this time on the Russian Plain. The Briansk landscapes reflect the moderate-cool climate of this period, when the majority of northern subarctic plant and mammal species extended their ranges considerably to the south to the Central Russian Plain. At the same time, steppe species penetrated farther north and west. This combination shows that the continuous forest zone was destroyed during the Briansk Inter-stade. Five biogeographical provinces have been reconstructed from the north to the south for the Russian Plain during the Briansk warming on the basis of joint analysis of mammalian and botanical data.
Patients Do Not Pre-Adapt to A Predictable Release during Walking - A Pilot Investigation between Healthy Controls and Chronic Non-Specific Low Back Pain Patients

In this study, we examined with the influence of disturbance during walking on patients with chronic non-specific low back pain. Four matched pairs of individuals took part; four subjects were classified as healthy and four suffered chronic nonspecific low back pain. The kinematics and kinetics of both groups were recorded and analysed. The statistical data showed significant differences in the timing behavior of the ground reaction force and in the pre-adaption of the knee joint to touch-down. The applied disturbance did not directly influence the course of the ground reaction force in patients with chronic lower back pain. No compensatory effects, as seen in healthy subjects, were observed. Simultaneously, there was significantly less adjustment at the end of the swing phase in the angle curves of the knee and ankle joints. In the course of angular acceleration, healthy subjects showed rapidly changing, accelerating, and decelerating moments in the knee joint angle. Therefore, we infer that the missing compensatory effects in the ground reaction force can be traced back to a different strategy in the pre-adaptive processes.
DISCRIMINANT ANALYSIS OF SEXUAL DIMORPHISM IN MORPHOLOGICAL TRAITS OF AFRICAN MUSCOVY DUCKS

Sexual dimorphism was examined in 221 randomly selected adult African Muscovy ducks extensively reared in north central Nigeria using univariate and multivariate measures of body size and skeletal proportions. The body parameters investigated included body weight, 8 primary linear body measurements [breast circumference (BTC), thigh circumference (THC), body length (BDL), bill length (BLL), neck length (NKL),foot length (FTL), total leg length (TLL) and wing length (WNL)] and 4 morphological indices (massiveness, stockiness, long-leggedness and condition index). The univariate analysis showed male dominance (p<0.05) in all the morphometric measurements, with the exception of stockiness and longleggedness where significantly higher mean values were recorded for females. Low, moderate and high positive and negative correlations among the body size and shape characters of the ducks were recorded. The canonical discriminant analysis on body weight and primary linear body measurements revealed that wing length was the most discriminating variable between the sexes, followed by body weight, neck circumference, total leg length, body length and foot length respectively. Three other variables not qualified to enter the model were expunged. The single discriminant function obtained (D= -3.116 + 0.280WNL+ 0.921BWT + 0.191NKL 0.196TLL 0.063BDL 0.283FTL) correctly classified 91.4% of individuals of known-sex ducks. This might aid in ecological studies, conservation and improvement of the indigenous ducks. RESUMEN
The behaviour of noise traders: empirical evidence on purchases of business magazines

According to the prospect theory financial investors tend to sell winners too early and ride losers too long. Therefore, demand for financial advise should be high in a bull market and low in a bear market. Thus, we test the hypothesis whether the demand for business magazines is somehow related to the performance of the stock market. It turns out that the sales of these magazines are positively correlated with the stock market index. Due to the fact that the information provided in business magazines seem to be already reflected in stock prices, trading on those kind of data will be just like trading on noise. In conclusion, we are able to isolate a major influence factor for the expectation formation process of noise traders.
DIFFERENT NEURAL NETWORKS AND MODAL TREE METHOD FOR PREDICTING ULTIMATE BEARING CAPACITY OF PILES

The prediction of the ultimate bearing capacity of the pile under axial load is one of the important issues for many researches in the field of geotechnical engineering. In recent years, the use of computational intelligence techniques such as different methods of artificial neural network has been developed in terms of physical and numerical modeling aspects. In this study, a database of 100 prefabricated steel and concrete piles is available from existing publications to solve issues related to pile’s bearing capacity analysis. Three different artificial neural network algorithms were developed for comparing and verifying the obtained results at analyzing the bearing capacity of pile in soils. During the modeling process, the geometric properties of different piles, soil materials properties, friction angle and flap numbers (hammer blows) were selected as input parameters to the selected network and the output from the network was considered as the bearing capacity of the pile. Finally, the performance of radial base function type neural networks was compared with model tree method and predictive neural networks based on different learning algorithms such as Levenberg-Marquardt and Bayesian Regulation Back Propagation Algorithms. It was observed that the radial base neural network in some cases achieved better results from accuracy based on common statistical parameters such as correlation coefficient, mean absolute error percentage and root mean square error as compared to other stated methods and it showed the acceptable performance in modeling and predicting the desired output close to the target's results.
Alternative Protocol Implementation for Wireless Sensor Network Nodes

The nodes being used in Wireless Sensor Networks (WSN) pose particular challenge to communicate with one another using TCP/IP especially when considering security applications. This paper investigates the limitations of current TCP/IP structure and an integration using micro IP (μIP) and proposes an enhanced security technique for WSN nodes to solve issues arising from the node congestion due to data distribution of keys with a better method for securing the data in the network. The summation of this method involves the integration of μIP stack to key management scheme, allowing the network to have extra security in the transmission and reception of data, and can be applied in hazardous areas where the sensor nodes are used without complications
Development of an intraoperative procedure for producing an autologous whole skin equivalent - prototype design and pilot resection force and tensile strength measurements

Ottomann C*, Krziminski S, Klein S, Klepsch T Cell Biology, International and Humanitarian Medicine, Plastic Surgery, Unfallkrankenhaus Berlin Corresponding Author: Ottomann C, Cell Biology, International and Humanitarian Medicine, Plastic Surgery, Unfallkrankenhaus Berlin. E-mail: otto1701de@yahoo.de Citation: Ottomann C et al. (2017), Development of an Intraoperative procedure for producing an Autologous whole Skin Equivalent Prototype Design and Pilot Resection Force and Tensile Strength Measurements. Int J Biotech & Bioeng. 3:5, 127-131. DOI:10.25141/2475-3432-2017-5.0120 Copyright: ©2017 Ottomann C et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited
Benjamin–Feir instability of Rossby waves on a jet

Large‐scale waves on the extratropical tropopause have been widely observed to spontaneously organize into groups or wave packets. Here, a simple paradigm for this wave packet formation is presented. Firstly, a weakly nonlinear theory of Rossby wave propagation on a potential‐vorticity front, based on small non‐dimensional wave amplitude ε, is developed. As is typical for systems allowing conservative one‐dimensional wave propagation, the evolution of the wave envelope is governed by the nonlinear Schrödinger equation. The sense of the nonlinearity is consistent with Benjamin–Feir instability, where uniform wave trains are unstable to sideband modulations, leading to the formation of wave packets. Next, numerical results from contour dynamics integrations show that the weakly nonlinear predictions for sideband growth rates are quantitatively accurate up to ε∼0.5, and that unstable sideband growth is qualitatively similar, but slower than predicted, at higher values of ε. For ε≥0.6 the formation of wave packets leads to wave‐breaking, this occuring at much lower initial wave amplitudes than for unmodulated uniform wave trains previously studied. The numerical results reveal that the length and time‐scales of the Benjamin–Feir instability are broadly consistent with observed wave packet formation in the extratropics. Copyright © 2004 Royal Meteorological Society.
Talking – Desire, Impulse, Obsession, Compulsion, Addiction. Between Pathology and Postmodern Culture

The present paper takes up the problem of stalking, a phenomenon topical in law, psychology and sociology. Stalking is, among others, persecution, harassment. It is considered as aggression. From the offender’s view point , it is analyzed as pathology of emotions, sentiments, and love; but also as dysfunctional dependence upon a person. The paper offers a broader, theoretical interpretation of stalker’s behavior, referring to Bowlby’s attachment theory and postmodern cultural conditions. doi:10.5200/sm-hs.2012. 037
Consequences of trade liberalization on the labor market in developing economy : The case of Tunisia

This paper investigates short and long run effects of trade liberalization on employment and wages using a specific factor trade model. Employment and wage equations areestimated using data (1971-1996) for importable and exportable sectors in Tunisia. Results fromempirical testing using the model find some supports for the theoretical predictions of Edwards(1988) for the exportable sector. On the other hand, in the importable sectors, we find resultsthat are opposed to those predicted by Edwards (1988) since employment and wages increase. Apossible reason for the divergence of theory and practice is that the Edward's model is premisedon the basis of a fixed supply of labour. Exportable employment could therefore only rise ifimportable employment fell. However, as we have seen, the supply of labour increaseddramatically in Tunisia as women entered the labour market. This allowed employment inimportable to be maintained (even slightly increase) as the exportable sector expanded.
Response to comments of Anonymous Referee # 1 5 Overall assessments :

Reliable drought prediction is fundamental for water resource managers to develop and implement drought mitigation measures. Considering that drought development is closely related to the spatio-temporal evolution of large-scale circulation patterns, we develop a conceptual prediction model of seasonal drought processes based on atmospheric/oceanic 10 Standardized Anomalies (SA). Empirical Orthogonal Function (EOF) analysis is first applied to drought-related SA at 200 hPa/500 hPa geo-potential height (HGT) and sea surface temperature (SST). Subsequently, SA-based predictors are built based on the spatial pattern of the first EOF modes. This drought prediction model is essentially the synchronous statistical relationship between 90-day-accumulated atmospheric/oceanic SA-based predictors and 3-month SPI (SPI3), calibrated using a simple stepwise regression method. It is forced with seasonal climate forecast models, including the NCEP Climate Forecast 15 System Version 2 (CFSv2). It can make seamless drought prediction for operational use after a year-to-year calibration. Model application to four recent severe drought events in China indicates its good performance in predicting seasonal drought development, despite its weakness in predicting drought severity. Therefore, it can provide some valuable information and is a worthy reference for seasonal water resource management. 20
Properties of Nanostructure Bismuth Telluride Thin Films Using Thermal Evaporation

Bismuth telluride has high thermoelectric performance at room temperature; in present work, various nanostructure thin films of bismuth telluride were fabricated on silicon substrates at room temperature using thermal evaporation method. Tellurium (Te) and bismuth (Bi) were deposited on silicon substrate in different ratio of thickness. These films were annealed at 50°C and 100°C. After heat treatment, the thin films attained the semiconductor nature. Samples were studied by X-ray diffraction (XRD) and scanning electron microscopy (SEM) to show granular growth.
Harmonic functions satisfying weighted sign conditions on the boundary

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ScienceDirect The 50 th CIRP Conference on Manufacturing Systems Addressing the performance of order acceptance

While there are many mathematical approaches to order acceptance (OA), the performance of OA in practice is overlooked. This paper assesses current OA methods and performance measures that could measure OA. The outcome is a conceptual performance measurement system for OA that measures performance through utilization of resources, output and flexibility in a diagnostic and predictive manner. This paper found a close relationship between OA and S&OP, as they both match supply and demand. The contribution of this paper is that it detaches OA from mathematical models and proposes a method to assess the value creation of OA in practice. © 2017 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the scientific committee of The 50th CIRP Conference on Manufacturing Systems.
An optimized infrastructure for deferred telemonitoring of home rehabilitation in chronic rheumatic patients

The interest towards telemedicine and its various branches is constantly growing, given the opportunities in terms of costs reduction, efficiency and capillarity in delivering health services. In particular, telerehabilitation aims at improving the quality of life of physically impaired patients, providing the support for home-managed rehabilitation sessions. Moving from an existing outpatient device for the quantitative evalu- ation of hand rehabilitation exercises, opportunely enhanced to be used in a telemonitoring scenario, in this paper the development of the remaining telerehabilitation infrastructure is presented and evaluated. It includes, beyond the rehabilita- tion kits, a remote server and a deferred monitoring software application. The kits, entrusted to the patients for rehabilitation in their home, are able to send to the remote server via a GSM/GPRS connection, quantitative measurements of the patients' performance. The physician's monitoring application, retrieving such data and providing an appropriate visualiza- tion, allows the evaluation of both the patients' compliance to the rehabilitation protocol and their progresses. The system has been evaluated by a small panel of rheumatologists in order to assess its acceptability in a clinical environment and is currently under test for experimental trials in Italy.
Synergism between two anthropic impacts: Caulerpa racemosa var. cylindracea invasion and seawater nutrient enrichment.

Although eutrophication and biological invasions are recognized as important elements of global change, few studies have assessed how their synergism can affect structural and functional traits of marine ecosystems. The present study aimed to evaluate the effect of seawater nutrient enrichment on the spread of the introduced Chlorophyta Caulerpa racemosa var. cylindracea and the interactive effects of nutritional enrichment and C. racemosa invasion on the native macroalgal assemblages of a subtidal rocky bottom. To achieve these objectives, a manipulative field experiment was carried out at 24 m depth in the northwestern Mediterranean Sea by adding C. racemosa and supplying the water column with nutrients. The following treatments were applied: non-manipulated assemblages, nutrient enrichment, addition of C. racemosa, and both nutrient enrichment and addi- tion of C. racemosa. Results showed that C. racemosa spread was enhanced by nutrient enrichment. Moreover, a significant interaction between nutritional increase and C. racemosa invasion was detected: the effects of C. racemosa invasion on native macroalgal assemblages were amplified by nutrient enrichment. Results suggested that synergism between effects of different anthropogenic impacts can have severe consequences on the integrity of marine ecosystems.
Empirical research on impact of social capital of scientific and technological intermediary on knowledge transfer--Taking the Science and Technology Park of Nanjing University as an example

The mechanism of the impact of social capital of scientific and technological intermediary on knowledge transfer is not yet clear. This research tries to build a theoretical framework of the social capital of scientific and technological intermediary for the knowledge transfer performance, and also selects the incubators of the Science and Technology Park of Nanjing University as a typical case of the scientific and technological intermediary, analyzes the differences between the social capital of scientific and technological intermediary and the social capital of the government, colleges and universities, enterprises and different subjects of knowledge innovation through open research, and discusses the effect and mechanism of knowledge transfer, so as to clarify the nature of social capital of scientific and technological intermediary, and give play to positive effect in the knowledge transfer and innovation, and provide scientific basis and reference experience.