Miracle-dz/UniFAR-FTUs huggingface dataset:
Metodología para documentación 3D utilizando fotogrametría digital

El presente articulo utiliza la metodologia de documentacion 3D empleando software especializado en fotogrametria digital de rango corto, el cual permite generar un modelo 3D texturizado realista; este modelo se obtiene a partir de un conjunto de imagenes que brindan la informacion necesaria para que el volumen y profundidades del objeto sean representados como una nube de puntos, que posteriormente seran convertidos en una malla y esta sera revestida con una textura obtenida tambien a partir de las imagenes utilizadas. Este tipo de objetos permiten una facil difusion y acceso, ademas de la generacion de ortofotos, las cuales se utilizan para realizar mediciones confiables del objeto tratado
Why Pay Attention to You? The Role of Moderation Effects on the Power-Attention Relationship

Stories in today’s society focus poor relationships between leaders or those in high power positions and people lower in power, which may be explained by a pattern found in the literature demonstrating a negative relationship between power and attention to others. We contend that this relationship may have boundary conditions, and this paper proposes and tests such moderators. We propose moderators that will increase the attention of high-power people, and others that will decrease the attention of low-power people. Results from longitudinal data support some moderators for powerholders, the moderators for low-power individuals work in the opposite direction as hypothesized.
Student Financial Aid and Its Role in Stimulating Enrollment: An Empirical Study of Tanzanian Undergraduate Students’ Experience

This paper provides an important insight into the undergraduate students’ reliance on financial aid and its role on student enrollment. Based on the finding emerging from the focus groups and semi-structured interview; five general themes emerged, including economic condition and higher cost, unmet needs, limited contribution from universities, lack of information about financial aid opportunities and inadequate of private financial aid. Findings have implications and future research for administrators in higher education, government and policymakers.
A game theoretic framework for interconnect optimization in deep submicron and nanometer design

The continuous scaling of interconnect wires in deep submicron (DSM) circuits result in increased interconnect delay, power and crosstalk noise. In this dissertation, we address the problem of multi-metric optimization at post layout level in the design of deep submicron designs and develop a game theoretic framework for its solution. Traditional approaches in the literature can only perform single metric optimization and cannot handle multiple metrics. However, in interconnect optimization, the simultaneous optimization of multiple parameters such as delay, crosstalk noise and power is necessary and critical. Thus, the work described in this dissertation research addressing multi-metric optimization is an important contribution. Specifically, we address the problems of simultaneous optimization of interconnect delay and crosstalk noise during (i) wire sizing; (ii) gate sizing; (iii) integrated gate and wire sizing, and (iv) gate sizing considering process variations. Game theory provides a natural framework for handling conflicting situations and allows optimization of multiple parameters. This property is exploited in modeling the simultaneous optimization of various design parameters such as interconnect delay, crosstalk noise and power, which are conflicting in nature. The problem of multi-metric optimization is formulated as a normal form game model and solved using Nash equilibrium theory. In wire sizing formulations, the net segments within a channel are modeled as the players and the range of possible wire sizes forms the set of strategies. The payoff function is modeled as (i) the geometric mean of interconnect delay and crosstalk noise and (ii) the weighted-sum of interconnect delay, power and crosstalk noise, in order to study the impact of different cost functions with two and three metrics respectively. In gate sizing formulations, the range of possible gate sizes is modeled as the set of strategies and the payoff function is modeled as the geometric mean of interconnect delay and crosstalk noise. The gates are modeled as the players while performing gate sizing, whereas, the interconnect delay and crosstalk noise are modeled as players for integrated wire and gate sizing framework as well as for statistical gate sizing under the impact of process variations. The various algorithms proposed in this dissertation (i) perform multi-metric optimization; (ii) achieve significantly better optimization and run times than other methods such as simulated annealing, genetic search, and Lagrangian relaxation; (iii) have linear time and space complexities, and hence can be applied to very large SOC designs, and (iv) do not require rerouting or incur any area overhead. The computational complexity analysis of the proposed algorithms as well as their software implementations are described, and experimental results are provided that establish the efficacy of the proposed algorithms.
The essentials of shallow reflection data processing

Abstract The aims of processing shallow reflection data are no different from those established for petroleum seismology and the well known methods of this field can on the whole be adopted for high-resolution surveys. The need for rapid and economical processing is being met by the appearance of a range of PC-based packages and results can be obtained from initial data of reasonable quality which are comparable with those normal on the larger scale. This paper surveys the conventional seismic reflection processing sequence and points to some of the particular problems that can arise when it is applied to shallow data.
PRINTED CIRCUIT BOARDS

The printed circuit is the basic building block of the electronics hardware industry. This is a comprehensive single volume self-teaching guide to the art of printed circuit board design and fabrication -- covering the complete cycle of PCB creation, design, layout, fabrication, assembly, and testing. Table of contents Chapter 1: Basics Chapter 2: Electronic Components Chapter 3: Layout Planning & Design Chapter 4: Design Considerations for Special Circuits Chapter 5: Artwork Generation Chapter 6: Copper Clad Laminates Chapter 7: Image Transfer Techniques Chapter 8: Plating Process Chapter 9: Etching Techniques Chapter 10: Mechanical Operations Chapter 11: Flexible Printed Circuit Boards Chapter 12: Soldering, Assembly, and Re-working Techniques Chapter 13: Quality, Reliability, and Acceptability Aspects Chapter 14: Environmental Concerns in the PCB Industry
Seasonal smooth transition autoregression

In this paper we put forward a new time series model, which describes nonlinearity and seasonality simultaneously. We discuss its representation, estimation of the parameters and inference. This seasonal STAR (SEASTAR) model is examined for its practical usefulness by applying it to 18 quarterly industrial production series. The data are tested for smooth-transition nonlinearity and for time-varying seasonality. We find that the model fits the data well for 14 of the 18 series. We also consider out-of-sample forecasting where we compare forecasts from the SEASTAR models with forecasts from nested models. It turns out that the SEASTAR model sometimes outperforms the other models, particularly for large horizons. Finally, we compare the SEASTAR models with STAR models for the 14 corresponding seasonally adjusted series, and we find that the estimated business cycle chronologies can be markedly different.
Anonymous and untraceable communications : location privacy in mobile internetworking

Data protection and privacy is rapidly becoming one of themost important issues on the Internet today. Larger number ofInternet sites are collecting personal information from usersthrough forms, cookies, online registrations, or surveys thanever before. New commercial services are springing up that canexploit the ability of mobile communication service providersto determine the geographic location of their users. The newwireless technologies offer mobility; at the same time theyofferlocation informationthat is being used to provide newlocation-aware services.This licentiate thesis concerns our experience building anew innovative network environment at the IT-University (RoyalInstitute of Technology). It explains how we present the newsecurity challenges that a wireless network raises togetherwith how we confronte and investigate a new form of problemthis type of network presents, namely location privacy.The focus of this work has been on trying to provideunlinkability between the location of wireless users and theiractivities in the Internet. The thesis includes a protocolextension to a pseudonymous IP network architecture developedby the Canadian company Zero Knowledge Systems Inc. called theFreedom System. The proposed extension to Freedom Systempermits a mobile client to seamlessly roam among IP subnetworksand media types whilst being untraceable. By untraceable in thecontext of this thesis we mean the capability of a mobile nodeto concealthe relation between location and personal identifiableinformationfrom third parties whilst the user is on themove. This thesis is composed of four published papers wherethe main results are presented.
Analysis of the Use of Power Transfer Distribution Factors (PTDF) in the UCTE Transmission Grid

Abstract –In this article, Power Transfer Distribution Factors (PTDF) and the underlying flow-based model proposed for capacity determination and allocation in electricity grids are studied. Several factors with influence on PTDF coefficients, such as topological and seasonal changes as well as zone-building, are empirically analyzed using an AC power flow simulation of the UCTE transmission network. Furthermore, the determination of border capacities is examined. According to the findings of this work, introducing the PTDF system in the highly meshed UCTE transmission system seems only feasible with a nodal network model, as the scattering of the coefficients due to the aforementioned factors precludes an efficient use in a zonal model. Moreover, it is shown that border capacities are overdetermined in a zonal model and hence cannot be computed univocally.
A constitutive model for the compression behavior of Old Alluvium

Old Alluvium is classified as a transported, in-situ weathered tropical soil, and represents a class of geomaterials that have a complex microstructure, including cemented aggregates at the meso-scale and groups of clay stacks at the micro-scale. Despite the presence of significant fractions of nontronite (smectite species), the activity of charged clay particles is initially masked by the aggregation of iron oxides. Compression loading breaks the cementation at the meso-scale and causes physico-chemical changes at the micro-scale, which reveal the expansive characteristics of the clay minerals. It is difficult to achieve a fully disaggregated condition (through mechanical mixing or selective chemical dissolution) and hence, there is little practical value in referencing properties of the intact soil to a hypothetical disaggregated or intrinsic state as proposed for other bonded soils. The proposed formulation describes the variation of compressibility according to a measure of the microstructural changes using the Cation Exchange Capacity as a state variable. Upon load reversal, a model based on double layer theory is integrated to predict macroscopic volumetric expansion due to the swelling of the nontronitic clay fraction. This behavior is also linked to the Cation Exchange Capacity through the preconsolidation stress level, and hence, can accommodate changes in the clay swelling potential caused by mechanical or physicochemical loading. The model parameters depend on the compression characteristics of the intact soil, on measurements of the Cation Exchange Capacity in the intact and partially disaggregated states, on the amount of expandable minerals in the microstructure and on the initial hydration of the clay stacks. Overall, the proposed formulation introduces a new way of modeling the compression of bonded materials with evolving microstructural characteristics, which does not require a unique reference state. It builds the swelling response directly on the physicochemical characteristics of the soil. The thesis also includes an experimental program on block samples obtained from a tunneling project in San Juan, Puerto Rico. The laboratory data was used for the calibration and detailed validation of model predictions. The proposed formulation enables predictions of expected engineering properties through the vertical weathering profile of the Old Alluvium. Thesis Supervisor: Andrew J. Whittle Title: Professor of Civil and Environmental Engineering
RL-Shield: Mitigating Target Link-Flooding Attacks Using SDN and Deep Reinforcement Learning Routing Algorithm

Link-flooding attacks (LFAs) are a new type of distributed denial-of-service (DDoS) attacks that can substantially damage network connectivity. LFAs flows are seemingly legitimate at the origin. But their cumulative volume at critical links causes congestion. We propose RL-Shield, a reinforcement learning based defense system against LFAs. It mitigates LFAs and, at the same time, effectively forwards data traffic in the network. RL-Shield introduces a new detection algorithm for monitoring IP behaviors using the Dirichlet distribution and Bayesian statistics. It monitors the interplay of LFAs and traffic engineering and identifies source IPs that persistently react to re-routing events. The detection algorithm controls two reinforcement learning based routing algorithms that use a hop-by-hop technique to connect related node pairs.We evaluate RL-Shield on various network topologies by simulating several attack strategies. The simulation results demonstrate the effectiveness and high-accuracy of RL-Shield.
Characterization of the belowground microbial community in a poplar-assisted bioremediation strategy for restoring a multi-contaminated soil

Background: Due to their widespread use in industrial applications in recent decades, Polychlorobiphenyls (PCBs) and heavy metals (HMs) are the most common soil contaminants worldwide, posing a risk for both ecosystems and human health.Results: a poplar-assisted bioremediation strategy has been applied for more than four years to a historically contaminated area (PCBs and HMs) in Southern Italy using the Monviso poplar clone. This clone was effective in promoting a decrease in all contaminants and an increase in soil quality in terms of organic carbon and microbial abundance. Moreover, a significant shift in the structure and functioning of the belowground microbial community was also observed when analysing both DNA and cDNA sequencing. In fact, an increase in bacterial genera belonging to Proteobacteria and able to degrade PCBs and resist HMs was observed. Moreover, the functional profiling of the microbial community predicted by PICRUSt2 made it possible to identify several genes associated with PCB transformation (e.g. bphAa, bphAb, bphB, bphC), response to HM oxidative stress (e.g. catalase, superoxide reductase, peroxidase) and HM uptake and expulsion (e.g. ABC transporters). Conclusions: This work demonstrated the effectiveness of the poplar clone used in stimulating the natural belowground microbial community to remove contaminants (phyto-assisted bioremediation) and improve the overall soil quality. It is a practical example of a nature based solution involving synergic interactions between plants and the belowground microbial community.
Vibration signature analysis of multistage gear transmission

An analysis is presented for multistage multimesh gear transmission systems. The analysis predicts the overall system dynamics and the transmissibility to the gear box or the enclosed structure. The modal synthesis approach of the analysis treats the uncoupled lateral/torsional model characteristics of each stage or component independently. The vibration signature analysis evaluates the global dynamics coupling in the system. The method synthesizes the interaction of each modal component or stage with the nonlinear gear mesh dynamics and the modal support geometry characteristics. The analysis simulates transient and steady state vibration events to determine the resulting torque variations, speeds, changes, rotor imbalances, and support gear box motion excitations. A vibration signature analysis examines the overall dynamic characteristics of the system, and the individual model component responses. The gear box vibration analysis also examines the spectral characteristics of the support system.
Development Trends in Additive Manufacturing and 3D Printing

Additive manufacturing and 3D printing tech­ nology have been developing rapidly in the last 30 years, and indicate great potential for future development. The promising future of this technology makes its impact on traditional industry unpredictable. 3D printing will propel the revolution of fabrication modes forward, and bring in a new era for customized fabrication by realizing the five “any”s: use of almost any material to fabricate any part, in any quantity and any location, for any industrial field. Innovations in material, design, and fabrication processes will be inspired by the merging of 3D­printing technology and processes with traditional manufacturing processes. Finally, 3D printing will become as valuable for manufacturing industries as equivalent and subtractive manufacturing processes.
In good times and in bad: A longitudinal analysis of the impact of bereavement on self-esteem and life satisfaction in couples

This study examines the impact of bereavement on self-esteem and life satisfaction in both partners of a romantic couple. We investigate the moderating effects of the type of the lost relationship (close family, close friends/others) and romantic relationship characteristics (daily social support, responsiveness-closeness, self-disclosure). We examined 1238 individuals in 619 male–female couples from the ages 18 to 81 (M [SD] = 31.97 years [13.26]). Both partners completed questionnaires at two assessments that were 20 months (SD = 2.02 months) apart, in between which n = 216 individuals were bereaved. Actor–partner interdependence models showed that bereavement did not predict later self-esteem or life satisfaction in either of the partners. The relationship characteristics and the type of lost relationship did not moderate the effects. The subjective meaning and distress of the loss predicted later self-esteem and life satisfaction. The self-esteem increase was larger for bereaved with a positive/neutral than for bereaved with a negative meaning of the bereavement. We found a partner effect on self-esteem for the group of bereaved who reported a negative meaning of the bereavement. The findings demonstrate that bereavement can impact romantic partners' self-esteem and that the subjective experience of bereavement helps understand individual differences in the effect of bereavement on self-esteem and life satisfaction.
Assessment of Service Quality Dimensions in Higher Education Sector of North India

The current paper discusses the importance of service quality in higher education among the Indian universities. In this modern world, education is a way to shift the country’s economy to knowledge economy and emerges as an important sector for the increasing the county’s economy and wealth. Therefore, assessment of service quality among the universities is gaining the preference from the researchers around the world. In this connection present study collected the data of355 post graduate student and analysed with the help of Structure Equation Modeling. The present paper found that all dimensions of SERVQUAL model (reliability, tangible, assurance, responsiveness and empathy) are important for the service quality assessment and it is affecting highly. Among all the dimensions reliability is having a great impact on service quality among the private universities of north India. Education managers can enhance of quality of service in their universities with the help of the current study.
Framework of Security Region Based Probabilistic Security Assessment for Power Transmission System

A model of security region based probabilistic security assessment system of power transmission system was presented.The configuration of this model was introduced.Practical dynamic security region(PDSR) and vol-tage stability region in cut-set spaces(CVSR) were applied to calculate dynamic and static insecurity probability.The steps of probabilistic security assessment were given specially.Then the framework of system software and the functions of each subprogram were introduced.An on-line probabilistic security assessment was realized by calcula-ting security region and stochastic load flow based on energy management system(EMS),which gives the indices of dynamic and static insecurity probability to guide operators in predictive control decision-making.
Fashion Source Book

This output is the result of research which sought to map the relationship between the fashion design process and illustration techniques. It comprises a reference work with over 1750 drawings of garments, accessories and details. The drawings are historical, classical, ethnic or inspirational examples and are described in the extensive glossary. The book was originally published in 1996 but has been completely re-worked using contemporary digital techniques, as described in the preface. The book includes illustration techniques new to a reference book of this nature. It combines dictionary and specification styles and is referenced by companies such as Worth Global Style Network. References are made to fabrication, colour use, period detail and function. This book is the first in a ‘trilogy’ of publications by McKelvey, published by Blackwell, aimed at providing a resource base to begin designing and communicating garments, whether initial ideas, production drawings or promotional illustrations. The 1st Edition was translated into Greek - by Blackwell Publishing in 2005 – ISBN: 960-411-531-6. and the rights were also sold to Australia. This 2nd Edition has sold 1160 since its publication in 2006. Blackwell have now been acquired by John Wiley & Sons, creating the potential for American distribution. McKelvey trained as a fashion designer but her Readership and teaching practice has altered the focus of her research towards the utilisation of digital media to develop and communicate design knowledge. This aligns with her growing pedagogic research interest in the relationships between learning processes and outcomes and the contexts in which they occur, specifically collaborative design project based learning contexts.