Miracle-dz/UniFAR-FTUs huggingface dataset:
An ANN-Based Precision Compensation Method for Industrial Manipulators via Optimization of Point Selection

Industrial manipulators are widely used in the manufacture of products due to their high flexibility and low costs. High absolute positioning accuracy is the key to guarantee the product quality, which is commonly improved through the error compensation technology. Due to the variety, complexity, and unpredictability of the error sources, the influence of the nongeometric errors on the absolute positioning accuracy of manipulators is uncertain. In result, the existing error compensation methods are difficult to obtain satisfying results, especially for manipulators with large joint flexibility that need to work in different task scenarios. In this paper, an artificial neural network- (ANN-) based precision compensation method via optimization of point selection is proposed, which deals with the kinematic errors and joint stiffness errors in different task scenarios. Firstly, the quasi-random sequence (QRS) method and the product of exponentials (POE) model are combined to identify and compensate the geometric parameters. The QRS method can select points evenly in the workspace. And the POE model can avoid the singularity problem of Denavit–Hartenberg (DH) model. Secondly, a continuous joint stiffness compensation model in the whole workspace is established through ANN. In order to get better compensation results for the current task scenario, the point selection method based on trajectory similarity is adopted to determine the training data of ANN. Finally, the experiments are conducted on a 6-DOF industrial manipulator to demonstrate the validity of the proposed method. The results show that the ANN-based method via optimization of point selection could be an effective solution for the precision compensation.
A P ] 2 4 A ug 2 00 6 LOCAL ILL-POSEDNESS OF THE 1 D ZAKHAROV SYSTEM

Ginibre-Tsutsumi-Velo (1997) proved local well-posedness for the Zakharov system    i∂tu+∆u = nu ∂ t n−∆n = ∆|u| u(x, 0) = u0(x) n(x, 0) = n0(x), ∂tn(x, 0) = n1(x) u = u(x, t) ∈ C n = n(x, t) ∈ R x ∈ R, t ∈ R for any dimension d, in the inhomogeneous Sobolev spaces (u, n) ∈ Hk(Rd)×Hs(Rd) for a range of exponents k, s depending on d. Here we restrict to dimension d = 1 and present a few results establishing local ill-posedness for exponent pairs (k, s) outside of the well-posedness regime. The techniques employed are rooted in the work of Bourgain (1993), Birnir-Kenig-Ponce-Svanstedt-Vega (1996), and ChristColliander-Tao (2003) applied to the nonlinear Schrödinger equation.
Learning Emotional Affordances based on Affective Elements in Human-Robot Interaction Scenarios

—The proposed work presents the concept of emotional affordances as an extension of the classical perceptual affordances for human-robot interaction. In this paper, emotional affordances represent the relation between affective elements, such as the objects in the scenario or the emotional states, and the effects and oportunities for the robot’s reactions. Thus, the system proposed in this work describes the use of the affordances in affective scenarios using robotic agents that can recognize and predict the emotional information of the user through elements of the environment and the human natural language ( i
Numerical Analysis of Seepage in Earth-Fill Dams

In an earth-fill dam, the effect of seepage has been studied by applying a finite element method using the SEEP2D program. This is in order to determine the quantity of seepage through the dam. The total head measurements, core permeability, and anisotropy ratio (kx/ky) (Case study: Khassa Chai Dam, Iraq) are taken as the main parameters. The effect of the different water heads of the reservoir were tested on the seepage. The results showed that any increase in the water heads caused an increase in seepage quantity. Also, it was found that the seepage rate decreases by about 8.7%, 13.2%, and 15.3% at levels of water 454, 471, and 485 m.a.s.l, respectively by changing the core permeability from 10 -6 m/s to 10 -7 m/s. It has been concluded that the clay core plays a significant role in decreasing the seepage quantity and existing gradient. The results of testing the effect of anisotropy ratio on seepage showed that an increase in (kx/ky) ratio leads to an increase in seepage quantity. Output variables and input variables have been linked by the ANN model that governs seepage quantity through zoned earth dams and existed gradients. The results showed that both models present a good estimation for the determination of coefficient R 2 (0.9003, 0.933).
X-XEN : Huge Page Support in Xen

Huge pages are the memory pages of size 2MB (x86-PAE and x86_64). The number of page walks required for translation from a virtual address to physical 2MB page are reduced as compared to page walks required for translation from a virtual address to physical 4kB page. Also the number of TLB entries per 2MB chunk in memory is reduced by a factor of 512 as compared to 4kB pages. In this way huge pages improve the performance of the applications which perform memory intensive operations. In the context of virtualization, i.e. Xen hypervisor, we propose a design and implementation to support huge pages for paravirtualized guest paging operations. Our design reserves 2MB pages (MFNs) from the do-main’s committed memory as per conﬁguration speci-ﬁed before a domain boots. The rest of the memory is continued to be used as 4kB pages. Thus availability of the huge pages is guaranteed and actual physical huge pages can be provided to the paravirtualized domain. This increases the performance of the applications hosted on the guest operating system which require the huge page support. This design solves the problem of availability of 2MB chunk in guest’s physical address space (virtualized) as well as the Xen’s physical address space which would otherwise may be unavailable due to fragmentation.
Non-life claims reserves using Dirichlet random environment

The purpose of this paper is to propose a stochastic extension of the Chain-Ladder model in a Dirichlet random environment to calculate the provesions for disaster payement. We study Dirichlet processes centered around the distribution of continuous-time stochastic processes such as a Brownian motion or a continuous time Markov chain. We then consider the problem of parameter estimation for a Markov-switched geometric Brownian motion (GBM) model. We assume that the prior distribution of the unobserved Markov chain driving by the drift and volatility parameters of the GBM is a Dirichlet process. We propose an estimation method based on Gibbs sampling.
Prototypes in the Mist: The Early Epochs of Category Learning

Recent ideas about category learning have favored exemplar processes over prototype processes. However, research has focused on small, poorly differentiated categories and on task-final performances—both may highlight exemplar strategies. Thus, we evaluated participants' categorization strategies and standard categorization models at successive stages in the learning of smaller, less differentiated categories and larger, more differentiated categories. In the former case, the exemplar model dominated even early in learning. In the latter case, the prototype model had a strong early advantage that gave way slowly. Alternative models, and even the behavior of individual parameters within models, suggest a psychological transition from prototype-based to exemplar-base d processing during category learning and show that different category structures produce different trajectories of learning through the larger space of strategies.
Variation of a floral polymorphism at different spatial scales in the Mediterranean geophyte Narcissus assoanus

Aims Habitat fragmentation impacts the spatial extent and isolation of local populations and communities. although the biological consequences of these impacts have been well studied at the site level, effects directly related to changes in the spatial configuration of populations in the landscape remain less clear. The objective of this study is to examine how changes in the spatial-scale configuration of populations are associated with variability in morph rations in the floral polymorphic mediterranean geophyte Narcissus assoanus. Methods We performed a nested analysis of morph ratio variation at three spatial scales: a 50 × 50 km regional scale in sE France, in fourteen 1 × 1 km landscapes located in the same region, and within 12 spatially extensive population patches. We also quantified variation in the behaviour of pollinators in population patches of contrasting spatial configuration. Important Findings at a regional scale, morph ratios show a geographic pattern of increasing isoplethy (1:1 morph ratio) away from centres of human population development and in upland pastures. at the landscape scale, isoplethy of local population patches is more correlated with decreased isolation among patches than with patch size. Finally, within local isoplethic populations, small patches can show significantly biased morph ratios. In small isolated patches, pollinators perform shorter flight distances among consecutive flower visits than in spatially extensive patches. This study of variation in a genetic polymorphism at multiple spatial scales provides new insights into the scale-dependent effects of habitat fragmentation and the potential occurrence of metapopulation dynamics in natural plant populations.
Monitoring songbird population change with autumn mist netting

Counts of migrating birds potentially could be used to detect population change. This technique would be especially valuable for tracking species poorly monitored by breeding and wintering season counts, such as boreal-nesting songbirds that winter in the tropics. Numbers of migrants counted vary with weather and other factors, however, and we need to demonstrate that migration counts give accurate results. Population trends for 1979-91 were calculated for 13 songbird species captured during autumn mist netting at 2 sites in southern Michigan. All species were northern-nesters occurring at the study sites only as transients. Annual indices of abundance were derived from a multiple regression of daily number of newly-captured birds on independent variables for date, weather, moon phase and year. Trends in the annual capture indices were significantly and positively correlated with trends in breeding bird survey (BBS) data from presumed breeding grounds in Michigan and Ontario, and were of similar magnitude. The results suggest that intensive, standardized netting can be a useful population monitoring tool.
Multi-STGCnet: A Graph Convolution Based Spatial-Temporal Framework for Subway Passenger Flow Forecasting

Subway passenger flow forecasting, an essential component of intelligent transportation system, is critical for traffic management, public safety, urban planning. However, it is very challenging due to the high nonlinearities and complex dynamic spatio-temporal dependencies of passenger flows. In this paper, we model the subway system as a directed weighted graph and propose a novel spatio-temporal deep learning framework, Multi-STGCnet, for forecasting short-term subway passenger flow at a station level. Specifically, Multi-STGCnet is mainly composed of two components, temporal component and spatial component. (1) The temporal component employs three long short-term memory network (LSTM)-based modules to capture three temporal properties of the target station, which are the interval closeness, daily periodicity, weekly trend. (2) The spatial component designs three spatial matrixes to extract spatial correlation of a target station with all other stations classified as near neighbors, middle neighbors and distant neighbors. Respectively, it adopts three graph convolution network (GCN) and LSTM combined modules to capture the spatio-temporal influences from different neighbors. Finally, the outputs of the two components are fused with different weights to generate prediction. We evaluate Multi-STGCnet on a real world dataset from the metro system in Shenzhen, China. Experiment results demonstrate that our model outperforms multiple baselines.
The destructive effects of binary encounters on red giants in the Galactic Centre

We consider the destructive effects of encounters between binaries and red giant stars in the Galactic Centre. Such encounters may explain the observed depletion of luminous red giants within the central 0.2 pc of the galaxy. We consider encounters involving 2- and 8-M⊙ red giants, and thus span the range of stellar masses contributing to the most luminous red giants observed in the Galactic Centre. To explore the phase space of encounters thoroughly, we simulate 18 × 103 encounters using a modified four-body code in which the red giant core and components of the binary are treated as point masses, and where the envelope configuration is assumed to remain static throughout the encounter. We then rerun a small number of encounters with a smoothed particle hydrodynamics (SPH) code to confirm the reliability of conclusions drawn from the four-body runs. We see two possible pathways to red giant destruction. A large fraction of encounters lead to the formation of common-envelope systems, where two compact objects (drawn from the red giant core and the components of the original binary) form a binary within a common gaseous envelope, whilst the third body is ejected. The destruction of the red giant will then follow when the envelope is ejected as the binary hardens. In a smaller number of encounters, the intruding binary passes through the star and ejects the red giant core from the envelope. The red giant envelope will then disperse on short time-scales. We compute the time-scales for both of these processes to occur in the Galactic Centre for a variety of binary populations.
The role of temporal scale in linear edge effects on a submontane Atlantic forest arboreal community

This study aims to detect the composition, abundance patterns, and successional stage distributions exhibited by arboreal species inside and at the linear edge of a submontane seasonal forest in the Chapada Diamantina (12°28'31'S, 41°23'14'W), Bahia, Brazil. The individual plants with breast height diameters ≥5 cm were sampled in 30 quadrats (10 m × 10 m), 15 in the forest edge and 15 inside the forest. Species were classified according to successional category. Phytosociological and diversity indices were calculated. Shannon indices were compared using Hutcheson's t-test, and the remaining parameters were analyzed by ANOVA. Linear edges exerted a high impact on the floristic composition, diversity, and abundance of species, though little interference was observed in the structure of the community, since phytosociological parameters and the proportions of successional categories did not differ between the edge and inner forest fragment. The impact of linear infrastructure was similar to that of other border types. Additionally, even though the distance between forest fragments was very short, an edge effect was observed, which underlines the importance of linear forest edges to biodiversity conservation.
Inertia-driven and elastoinertial viscoelastic turbulent channel flow simulated with a hybrid pseudo-spectral/finite-difference numerical scheme

Numerical simulation of viscoelastic flows is challenging because of the hyperbolic nature of viscoelastic constitutive equations. Despite their superior accuracy and efficiency, pseudo-spectral methods require the introduction of artificial diffusion (AD) for numerical stability in hyperbolic problems, which alters the physical nature of the system. This study presents a hybrid numerical procedure that integrates an upwind total variation diminishing (TVD) finite-difference scheme, which is known for its stability in hyperbolic problems, for the polymer stress convection term into an overall pseudo-spectral numerical framework. Numerically stable solutions are obtained for Weissenberg number well beyond O(100) without the need for either global or local AD. Sideby-side comparison with an existing pseudo-spectral code reveals the impact of AD, which is shown to differ drastically between flow regimes. Elastoinertial turbulence (EIT) becomes unphysically suppressed when AD, at any level necessary for stabilizing the pseudo-spectral method, is used. This is attributed to the importance of sharp stress shocks in its self-sustaining cycles. Nevertheless, in regimes dominated by the classical inertial mechanism for turbulence generation, there is still an acceptable range of AD that can be safely used to predict the statistics, dynamics, and structures of drag-reduced turbulence. Detailed numerical resolution analysis of the new hybrid method, especially for capturing the EIT states, is also presented.
Human immunodeficiency viruses [letter]

This statement by some members of a subcommittee empowered by the International Committee on the Taxonomy of Viruses proposes that the acquired immunodeficiency syndrome (AIDS) retroviruses be officially designated as the human immunodeficiency viruses (HIV). Adoption of an internationally acceptable name for this group of viruses has become important in view of the multiplicity of names currently in use. Several isolates of what are evidently closely related members of the same virus group have been called lymphadenopathy-associated virus (LAV) human T-lymphotropic virus type III (HTLV-III) HTLV-III/LAV and several other designations. The name HIV conforms to common nomenclature for retroviruses in that it begins with the host species ends with virus and contains a word that denotes the major pathogenic property of members of the virus group. It is readily distinguishable from all existing names for this group of viruses and was chosen without regard to priority of discovery. The name is sufficiently distinct from the names of other retroviruses to imply an independent virus species. Retroviruses isolated from subhuman primates and found to be genetically related and biologically similar to HIVs should be designated as immunodeficiency viruses of the host species eg simian immunodeficiency virus (SIV). Since HIV isolates are numerous and display considerable genetic heterogeneity particularly in the env gene each laboratory will have to assign subspecies designations to their isolates. It is recommended that each laboratory adopt a code with geographically informative letters and sequential numbers to identify their isolates. Initially existing well characterized isolates such as HTLV-IIIB should be so identified in publications to ease the transition to a unified nomenclature.
Gender, Generation, and Geography in a Mexican Transnational Community

This study explores generational and migration-related changes in gender and marriage in two locations of a transnational community of Mexicans: the sending community in western Mexico and the receiving community in Atlanta. The principal method was life histories, focusing on 13 women in Atlanta and their sisters or sisters-in-law in Mexico; life history informants' mothers and husbands were also interviewed. A generational paradigm shift in marital ideals has occurred, from an ideal ofrespeto (respect) to one of confianza (trust), characterized by cooperative decision making, heterosociality, a less gendered division of labor in social reproduction, and a new role for marital sexuality. Although women on both sides of the frontera (border) share this companionate ideal, economic opportunities, more privacy, and some legal protection from domestic violence gave women in Atlanta more lev- erage to push for these companionate marriages. Women and men in rural western Mexico and their relatives in Atlanta dis- cuss differences between life in the United States and Mexico in terms of gender: They say that "en el norte la mujer manda"—that in the North, women give the orders. Young Mexican women on both sides of the frontera (border), however, call our attention to the role of history rather than migration in the transforma - tion of gender: They say they are not as easily pushed around as their mothers. Although older women in this community were hardly powerless, in the space of
Cloning and Characterization of a Gene (mspA) Encoding the Major Sheath Protein of Treponema maltophilum ATCC 51939T

ABSTRACT The major sheath protein-encoding gene (mspA) of the oral spirochete Treponema maltophilum ATCC 51939T was cloned by screening a genomic library with an anti-outer membrane fraction antibody. The mspA gene encodes a precursor protein of 575 amino acids with a predicted molecular mass of 62.3 kDa, including a signal peptide of 19 amino acids. The native MspA formed a heat-modifiable, detergent- and trypsin-stable complex which is associated with the outer membrane. Hybridization with an mspA-specific probe showed no cross-reactivity with the msp gene from Treponema denticola.
Time and change: Using survival analysis in clinical assessment and treatment evaluation.

Survival analysis is a set of statistical techniques that is useful for modeling the types of changes commonly encountered in clinical assessment and treatment evaluation. This article provides a practical, comprehensive, mathematically sound yet nontechnical introduction to survival methods. After discussing study design and data, a complete example data set from a fictitious study of alcohol relapse patterns is introduced to illustrate commonly used survival analysis procedures, including the life-table method, the Kaplan-Meier procedure, the Cox proportional hazards model, and fully parametric survival models. These methods are used to describe the general survival and hazard functions, compare survival probabilities for groups of patients, develop multivariate hazard models, model the shape of the hazard function over time, and use diagnostic tools to check statistical assumptions. Complete SAS and SPSS programs are included in Appendix B.
Persistence of α-Cypermethrin in Cabbage and Monocrotophos in three Soils of West Bengal

In a field trial to evaluate the persistence of a-cypermethrin, cabbage crop was sprayed with 30.45 and 60g a.i. ha−1 resulting in corresponding initial deposits of 0.349, 0.565 and 0.736 ppm in cabbage head and 0.110,0.170 and 0.228 ppm in the cropped soil respectively. Residues readily dissipated and went beyond detection on 20 d after application in cabbage head and 10 d in cropped soil samples irrespective of the treatment dose. Calculated half-lives and safe waiting periods of the insecticide in cabbage head ranged from 1.956–2.105 and 3.594–5.269 d respectively. Persistence of monocrotophos was also studied in red laterite (Bolpur), saline alkali (Bokkhali) and neutral to slightly alkaline (Mondouri) soils both under non-flooded and flooded conditions maintained in the laboratory. Soil samples were fortified with a single dose of 1600 ppm and the highest rate of dissipation was found in Bokkhali soil followed by Mondouri and Bolpur soils. Calculated half-lives for monocrotophos were lower in flooded soils (5.90–8.36 d) with the lowest in flooded Bokkhali soil (5.90 d).
The Real Worlds of Welfare Capitalism: Frontmatter

Preface Acknowledgments 1. Introduction Part I. Setting the Scene: 2. Reasons for welfare 3. Alternative institutional designs 4. National embodiments 5. Background expectations 6. Testing the theories with panels Part II. One Standard of Success: External Moral Criteria: 7. Promoting efficiency 8. Reducing poverty 9. Promoting equality 10. Promoting integration 11. Promoting stability 12. Promoting autonomy Part III. Another Standard of Success: Internal Institutional Criteria: 13. The United States as a liberal welfare regime 14. The Netherlands as a social democratic welfare regime 15. Germany as a corporatist welfare regime 16. Conclusions Appendix tables References Index.