Miracle-dz/UniFAR-FTUs huggingface dataset:
Study of a Newtonian Fluid through Circular Channels with Slip Boundary Taking into Account Electrokinetic Effect

We study the slip flow of fluids driven by the combined effect of electrical force and pressure gradient. The underlying boundary value problem is solved through the use of Fourier series expansion in time and Bessel function in space. The exact solutions and numerical investigations show that the slip length and electrical field parameters have significant effects on the velocity profile. By varying these system parameters, one can achieve smooth velocity profiles or wave form profiles with different wave amplitude and frequency. This opens the way for optimizing the flow by choosing the slip length, the electrical field, and electrolyte solutions.
CONSTRUCTIONAL ASPECTS IN TEST FORMATION OF SOME AGGLUTINATED FORAMINIFERA

High resolution SEM and TEM studies of some species of agglutinated foraminifera raised in laboratory cultures show various morphologies of organic and calcareous cement. The organic cement is organized in three ways: (1) either in single strands, which may gradually pass over to (2) a fibrous meshwork of strands, or (3) in a foam-like mass. The agglutinated grains are coated with an organic envelope suggesting a former incorporation into the cytoplasmic system. Similar envelopes were found in agglutinated foraminifera with calcareous cement, also cultured under laboratory conditions.
A Moderating Role of Network Embeddedness in the Relationship between ICT Personnel's Attitude and Behavior in the Korean Cultural Context **

This study, using samples of four different ICT Chaebol companies, shows how the perceptions of organisational justice predict OCB in the ICT context and how such relationships react with Korean cultural features. Additionally, employees’ interactional justice accounted for significantly more variance in OCB than did procedural justice or distributive justice. This study found that expanding this relational model, perceived network embeddedness was taken as a moderating variable which might influence the relationship between interactional justice dimensions and OCB. The study extends the dyadic relationship perspective of social exchange theory and the academic area of organisational justice and OCB outside the Western region. Moreover, since cultural features and management literature indicated that employees from diverse cultural backgrounds and social values would have diverse expectations and value systems and have different work attitudes and perceptions, the findings may contribute to the diffusion of literature which indicate that understanding cultural values and its reflection is crucial in investigating employees’ perceptions and OCB intentions in organizational settings.
The latitudinal structure of the nightside outer magnetosphere of Saturn as revealed by velocity moments of thermal ions

Abstract. In this study we investigate the latitudinal behavior of the azimuthal plasma velocities in the outer magnetosphere of Saturn using the numerical ion moments derived from the measurements of the Cassini Plasma Spectrometer. One of the new results presented is that although these moments display some scatter, a significant positive correlation is found to exist between the azimuthal velocity and the plasma density, such that on average, the higher the density the higher the rotation speed. We also found that both the azimuthal velocity and the density anticorrelate with the magnitude of the radial component of the magnetic field and drop rapidly with increasing distance from the magnetic equator. The azimuthal velocities show periodic behavior with a period near the planetary rotation period, which can also be explained by the strong dependence on magnetic latitude, taking into account the flapping of the magnetodisk. It is thus found that the dense plasma near the magnetic equator rotates around the planet at high speed, while the dilute plasma at higher latitudes in the northern and southern hemispheres rotates significantly slower. The latitudinal gradient observed in the azimuthal speed is suggested to be a direct consequence of the sub-corotation of the plasma in the outer magnetosphere, with highest speeds occurring on field lines at lowest latitudes mapping to the rapidly rotating inner regions of the plasma sheet, and the speed falling as one approaches the lobe, where the field lines are connected to strongly sub-corotating plasma.
Highly heterogeneous Late Mesozoic lithospheric mantle beneath the North China Craton: evidence from Sr–Nd–Pb isotopic systematics of mafic igneous rocks

The lithospheric mantle beneath the North China Craton changed dramatically in its geophysical and geochemical characteristics from Palaeozoic to Cenozoic times. This study uses samples of Mesozoic basalts and mafic intrusions from the North China Craton to investigate the nature of this mantle in Mesozoic times. Sr–Nd–Pb isotopic data demonstrate that the Late Mesozoic lithospheric mantle was extremely heterogeneous. In the central craton or the Luzhong region, it is slightly Sr–Nd isotopically enriched, beneath the Taihangshan region it has an EM1 character (87Sr/86Sri=0.7050–0.7066; εNd(t)=−17–−10), and beneath the Luxi–Jiaodong region, it possesses EM2-like characteristics (87Sr/86Sri up to 0.7114). Compositional variation with time is also apparent in the Mesozoic lithospheric mantle. Our data suggest that the old lithospheric mantle was modified during Mesozoic times by a silicic melt, where beneath the Luxi–Jiaodong region it was severely modified, but in the Luzhong and Taihangshan regions the effects were much less marked. The silicic melt may have been the product of partial melting of crustal materials brought into the mantle by the subducted slab during the formation of circum-cratonic orogenic belts. This Mesozoic mantle did not survive for a long time, and was replaced by a Cenozoic mantle with depleted geochemical characteristics.
Modeling of nanostructured cathodes for improved lithium-sulfur batteries

Some of the most remarkable improvements in the cycle life of Li-S batteries could be achieved by nano-structuring of the sulfur/carbon (S/C) cathode material. Mesoand micro-porous particles, carbon nano tubes, and other sophisticated structures are used to actively retain highly soluble polysulfides which are responsible for capacity fading and a short cycle life. In this article we present a detailed 1+1D continuum model of S/C composite cathodes which is based on an ideal structure where all polysulfides are confined within mesoand micro-porous carbon particles. The model allows to correlate particle properties to cell performance and gives interesting insights for cell operation. Most interestingly we identified an additional overpotential caused by a transport of Li ions against a concentration gradient into the particle. Furthermore, the model can be used to find optimal structural and electrolyte properties such as pore volume, sulfur loading, solubility products, ∗Corresponding author: Email address: Arnulf.Latz@DLR.de () URL: http://www.dlr. de/tt/en/ () Preprint submitted to Electrochimica Acta December 2, 2015 and salt concentration.
The characteristics of a high performance organization

Purpose – Seeks to identify the characteristics of high performance organizations (HPO) so managers can start improving their organizations in such a way that these also become HPOs.Design/methodology/approach – The research is based on a meta‐analysis of the results of 91 HPO studies performed in the last and present decade.Findings – The results of the analysis offer a first picture of what a modern HPO looks like and provides the characteristics managers need to focus on in order to turn their companies into HPOs.Research limitations/implications – Despite an extensive literature search, potentially valuable studies might have been missed. Also, the studies look by definition at what organizations have done in the past, therefore not necessarily giving a guarantee that these characteristics will also be valid and of importance for the dynamic future. Further HPO research should focus on validating the characteristics found in this study so that managers can start improving their organizations with conf.
Academic Anxiety as a Correlate of Academic Achievement

This study was conducted to study the relationship and effects of academic anxiety on the academic achievements of students. A sample of 352 students of senior secondary school was taken through random sampling technique. A reliable and valid, Academic Anxiety Scale standardized by Dr. A.K. Singh and Dr. A Sen Gupta was used to collect the data. Mean SD, Correlation and t-test were used for the analysis of the data. Research findings revealed an inverse relationship (negative correlation) between the academic achievement and the academic anxiety of students. Significant differences were found between the academic achievement of high and low academic anxiety groups of students, between high and low academic anxiety groups of males, between high and low academic anxiety groups of females, between high academic anxiety groups of male and female students, and also between low academic anxiety groups of male and female students. Keywords: Anxiety, academic anxiety, academic achievement, and refined personality.
The Formation of Group Norms in Computer-Mediated Communication

The formation of group norms in computer-mediated communication (CMC) was examined among students who used e-mail as part of a course. A network analysis of group structures revealed that (a) content and form of communication is normative, group norms defining communication patterns within groups, (b) conformity to group norms increases over time, (c) communication outside the group is governed by different social norms. Results show that norms prescribing a particular use of technology are socially constructed over time at the level of locally defined groups and also show that the influence of these norms is limited to the boundaries of the group. It is concluded that the process of social construction is restrained by social identities that become salient over the course of interaction via CMC. These findings complement experimental evidence that stresses the importance of normative influence in CMC.
Resource allocation in breeding seabirds: responses to fluctuations in their food supply

In the vicinity of the Pribilof Islands in the Bering Sea, abundance of food available to surface-foraging seabirds was greater during the chick-rearing period in 1988 than in 1987, whereas abundance of food available to pursuit-diving seabirds was greater in 1987. Here we examine how breeding success and resource allocation of surface-foraging black-legged kittiwakes Rissa tridactyla (BLKI) and pursuit-diving thick-billed murres Uria lomvia (TBMU) varied with the fluctuations in their food supply. We also examine a difference in resource allocation among parents raising chicks at the large colony on St. George Island and those at the nearby small colony on St. Paul Island. We studied breeding success (BS), field metabolic rates (FMR, assessed by using doubly labeled water), foraging distribution, and nest attendance of parents and growth rate (GR) of chicks. The BS of BLKIs was lower in 1987 (a season of less abundant food for kittiwakes) than in 1988 (a season of more abundant food), and parents had higher FMRs in 1987 than in 1988. At-sea distributions and nest attendance suggested that in 1987 BLKIs foraged farther from the colonies, which could have resulted in the higher FMR of the parents. GR of BLKI chicks did not vary between 1987 and 1988. The BS of TBMUs was not significantly different between 1987 (a season of more abundant food for TBMUs) and 1988 (a season of less abundant food). Parent TBMUs had similar FMRs between the seasons. Densities of foraging TBMUs were higher within 20 km around colonies in 1987 than in 1988. Although the total time parent TBMUs spent foraging did not vary inter-seasonally, they performed more foraging trips of a shorter duration in 1987 than in 1988, and the GR of TBMU chicks was higher in 1987 than in 1988. Inter-colony comparisons do not suggest that parents reproducing at the large colony work harder to raise their young compared to parents breeding at the small colony. In 1987 parent BLKIs failed in raising young at the large colony, whereas one-third of BLKIs fledged their chicks at the small colony. In 1988, however, RS and FMRs of parent BLKIs were not significantly different between the colonies. Also, TBMUs at the large colony had higher BS than those at the small colony in both 1987 and 1988. Furthermore, in both years parent TBMUs feeding young at the small colony foraged farther from the colony and had significantly higher FMRs than at the large colony. These results suggest that fluctuations in food supply affect resource allocation in seabirds. However, a decrease in food abundance is likely to cause an increase in energy expenditures of parent BLKIs, whereas growth rates of their chicks are less affected. For the TBMUs, food shortages are likely to cause a decrease in growth of the chicks, but not an increase in energy expenditures of the parents.
General plastic collapse equations of pipe bend with or without crack under in-plane bending

Elbows exhibit highly strained regions and are vulnerable to plastic collapse. It has been observed that available equations in literature for evaluation of plastic collapse load of a pipe bend have limited applicability and do not cover wide range of pipe bend radius ratios and bend angles which are used in power plant piping. Moreover, the elbow collapse load equation should approach to straight pipe collapse load as elbow bend radius increases or bend angle decreases. Generally, the available equations do not satisfy this asymptotic behaviour of an elbow. About 600 number of elastic plastic and geometric nonlinear finite element analyses of elbows having different geometric parameters bend radius, pipe radius, thickness and crack size (in case of cracked elbow), have been performed. For each of the elbow the in-plane plastic collapse moments have been evaluated from M-rotation curve by twice elastic slope (TES) method. Further two weakening factors were defined to quantify the degrees in plastic collapse moment, one due to elbow doubly curved geometry and second due to presence of crack. The geometric weakening factor was evaluated by comparing elbow plastic collapse moment with corresponding straight pipe collapse load while the crack weakening factor was evaluated by comparing cracked elbow plastic collapse moment with corresponding un-cracked elbow plastic collapse moment. The simple equation were developed for these weakening functions which can be used with pipe plastic collapse load equation for prediction of plastic collapse load of elbows.
In CARS We Trust: How Context-Aware Recommendations Affect Customers’ Trust and Other Business Performance Measures of Recommender Systems

Most of the work on Context-Aware Recommender Systems (CARSes) has focused on demonstrating that the contextual information leads to more accurate recommendations and on developing efficient recommendation algorithms utilizing this additional contextual information. Little work has been done, however, on studying how much the contextual information affects purchasing behavior and trust of customers. In this paper, we study how including context in recommendations affects customers’ trust, sales and other crucial business-related performance measures. To do this, we performed a live controlled experiment with real customers of a commercial European online publisher. We delivered content-based recommendations and context-aware recommendations to two groups of customers and to a control group. We measured the recommendations’ accuracy and diversification, how much customers spent purchasing products during the experiment, quantity and price of their purchases and the customers’ level of trust. We aim at demonstrating that accuracy and diversification have only limited direct effect on customers’ purchasing behavior, but they affect trust which drives the customer purchasing behavior. We also want to prove that CARSes can increase both recommendations’ accuracy and diversification compared to other recommendation engines. This means that including contextual information in recommendations not only increases accuracy, as was demonstrated in previous studies, but it is crucial for improving trust which, in turn, can affect other business-related performance measures, such as company’s sales.
Speech-to-speech translation using deep learning

Current state-of-the-art translation systems for speech-to-speech rely heavily on a text representation for the translation. By transcoding speech to text we lose important information about the characteristics of the voice such as the emotion, pitch and accent. This thesis examine the possibility of using an LSTM neural network model to translate speech-to-speech without the need of a text representation. That is by translating using the raw audio data directly in order to persevere the characteristics of the voice that otherwise get lost in the text transcoding part of the translation process. As part of this research we create a data set of phrases suitable for speech-to-speech translation tasks. The thesis result in a proof of concept system which need to scale the underlying deep neural network in order to work better.
Audit Committee Characteristics and Executive Committee Characteristics and Firm Performance in Oman: Empirical Study

This study attempted to examine the association between two important committees of corporate governance practice namely, audit committee characteristics and executive committee characteristics, and firm performance. The data used comprised of non-financial companies listed in Muscat Security Market (MSM) through 2011 and 2012. Based on widely existing literature that studied the relationship between corporate governance and firm performance, studies that investigated the role of executive committee with firm performance are few and far between and hence, the main aim of this study is to discover this relation. Therefore, this study is an attempt to fill the gap in literature by exploring these new measures and contributing to a rich body of existing literature.The outcome of this study revealed a positive relationship between audit committee size (ACSIZE), audit committee independence (ACINDE) and executive committee size (ECSIZE) and firm performance but not significant. In addition, the association between audit committee meeting (ACMEETIN), executive committee independence (ECINDE) and executive committee meeting (ECMEETIN) and firm performance was negative but not significant. The findings found the relationship between firm size (FIRMSIZE) and firm performance to be positively significant while the relationship between leverage (LEVERAG) and firm performance was found to be negatively significant. Finally, this study discusses the results and provides limitation and recommendations towards the end.
The brushless doubly fed reluctance machine and the synchronous reluctance machine-a comparison

In order to gain a basic understanding of the optimal control properties of brushless doubly-fed reluctance machines (BDFRMs), and the tradeoffs between their size and inverter rating, as well as the comparative torque and power of the BDFRM with other machines, the authors compare the BDFRM and its cousin, the synchronous reluctance motor (SYNCREL). Where appropriate, the comparisons are carried out in a machine independent fashion using normalised analysis techniques. Much of the work in this paper requires some background in the space vector theory and d-q modelling of the BDFRM.
Soil and water characteristics of traditional paddy and shrimp fields of Kerala

A comprehensive study was undertaken to assess soil and water quality of three different farming areas in Trichur and Ernakulam districts of Kerala during traditional paddy cultivation period from June to December 2000 and the extensive shrimp culture season from January to April 2001. Studies revealed that organic carbon in soil was higher during Pokkali paddy crop vis a vis extensive shrimp culture. Soil was acidic during both the crops. There was no difference in other soil parameters such as electrical conductivity and redox potential. Water parameters like salinity, ammonia and nitrite values were marginally higher during extensive shrimp culture than during paddy crop. However, pH, chemical oxygen demand, phosphates and total phosphorous were not different between the two crops. The soil and water parameters, except soil pH, were observed to be within optimum range for shrimp farming
Bursty magnetic reconnection at Saturn's magnetopause

We infer the evolution of magnetopause reconnection from simultaneous in situ magnetopause crossings and auroral observations by Cassini on 19 July 2008. Depending on the magnetosheath field, it proceeds from (i) the high‐latitude lobe, producing a cusp spot in the aurora, to (ii) lower latitude but north of Cassini, evidenced by an enhancement of the pre‐noon auroral arc and escape of magnetospheric electrons during a long boundary layer traversal, to (iii) bursts of reconnection south of Cassini, resulting in bifurcations of the near‐noon auroral oval, escape of magnetospheric electrons, and a short boundary layer encounter. The conditions under which the auroral bifurcations associated with this bursty reconnection were observed were examined for this and three other examples. The magnetosphere was strongly compressed with a high magnetosheath field strength in every case. We conclude that reconnection can proceed at different locations on the magnetopause, depending on the local magnetic shear and plasma β conditions, and bursty reconnection occurs when the magnetosphere is strongly compressed and can result in significant solar wind‐driven flux transport in Saturn's outer magnetosphere.
Analysis of Regulation of Residential Suburbanisation in Hinterland of Post-socialist ‘One Hundred Thousands’ City of České Budějovice

Abstract Residential suburbanisation is currently the most important urbanisation process transforming metropolitan areas in European post-socialist countries, especially in Central Europe and at Baltic states. The paper compares the statements of the mayors of the suburban municipalities situated in the hinterland of the city of České Budějovice (a one-hundred-thousand city in the South-West of the Czech Republic) and also the local building officials, spatial planning ofcials and experts regarding the recent, currently on-going and upcoming construction of houses in the suburbs and the regulation of these constructions. Further, it discusses the possibilities of influencing the construction of the houses through the spatial plans of municipalities, settlement zones, and metropolitan areas. The interviewed mayors consider, rather uncritically, the recent large construction of houses in their suburbs in general as appropriate. One third of the mayors, however, do not want any further suburban development of this kind. Spatial planning officials and building officials do not have sufficiently powerful tools to influence the extent of the construction and the designs of houses in the individual suburban municipalities and their suburbs. Some of them, together with the experts, support the reintroduction of the metropolitan area spatial plan.