Miracle-dz/UniFAR-FTUs huggingface dataset:
Archaeological textiles excavated in Greece

This paper offers an account of the archaeological textiles excavated in Greece, consideration of the challenges one has to deal with when studying such materials and a discussion of ways to overcome them. A complete list of archaeological textiles excavated in Greece is not within the scope of this paper, since such comprehensive studies have been published previously (Spantidaki and Moulhérat 2012; Moulhérat and Spantidaki 2016) and, of course, the corpus of such textiles is continuously expanding. The study of textiles is an emerging and fast-growing field of Greek archaeology (Gleba 2011). The number of archaeologists and conservators working with and studying archaeological textiles is steadily increasing, thus raising the general awareness of textiles and expanding the corpus of known ancient fabrics. In recent years, several research projects have investigated ancient Greek textiles, such as those conducted by the Centre for Textile Research at the University of Copenhagen (for example Textile Economies in the Mediterranean Area), several funded by Marie Skłodowska Curie Action grants and some by European Research Council grants (for example Production and Consumption: Textile Economy and Urbanisation in Mediterranean Europe 1000–500 BCE hosted by Cambridge University).
A Novel Low Power , High Speed 14 Transistor CMOS Full Adder Cell with 50 % Improvement in Threshold Loss Problem

Full adders are important components in applications such as digital signal processors (DSP) architectures and microprocessors. In addition to its main task, which is adding two numbers, it participates in many other useful operations such as subtraction, multiplication, division,, address calculation,. etc. In most of these systems the adder lies in the critical path that determines the overall speed of the system. So enhancing the performance of the 1-bit full adder cell (the building block of the adder) is a significant goal.Demands for the low power VLSI have been pushing the development of aggressive design methodologies to reduce the power consumption drastically. To meet the growing demand, we propose a new low power adder cell by sacrificing the MOS Transistor count that reduces the serious threshold loss problem, considerably increases the speed and decreases the power when compared to the static energy recovery full (SERF) adder. So a new improved 14T CMOS l-bit full adder cell is presented in this paper. Results show 50% improvement in threshold loss problem, 45% improvement in speed and considerable power consumption over the SERF adder and other different types of adders with comparable performance. Keywords—Arithmetic circuit, full adder, multiplier, low power, very Large-scale integration (VLSI).
Numerical dispersion analysis of discontinuous Galerkin method with different basis functions for acoustic and elastic wave equations

The discontinuous Galerkin method (DGM) has been applied to investigate seismic wave propagation recently. However, few studies have examined the dispersion property of DGM with different basis functions. Therefore, three common basis functions, Legendre polynomial, Lagrange polynomial with equidistant nodes and Lagrange polynomial with Gauss-Lobatto-Legendre (GLL) nodes, are employed for numerical approximation. The numerical dispersion and anisotropy numerical behavior of acoustic and elastic waves are compared, and the numerical errors of different order methods are analyzed. The result shows that the dispersion errors for all basis functions reduce generally with increasing interpolation orders, but with large differences in different directions. Specifically, the Legendre basis function and Lagrange basis function with GLL nodes have attractive advantages over the Lagrange polynomial with equidistant nodes for numerical computation. We verify the dispersion properties by theoretical and numerical ana.
Vocalizações na Coruja-do-mato (Strix aluco) - uma análise bioacústica

Birds vocalization present the potential to exhibit great individual variation based on the different behaviour development and maturation, even without disregarding the fisiological and morfological limitations that they are subjected to. Most stringiforms are territorial, keeping the same territory through years. They are distinctive for their long-range vocalization, a trait used to show the distinct individuality in some species, without resorting to invasive methods. With this essay, we pretend to contribute to amplify the knowledge about Stringiforms, particularly on tawny-owl. With that in mind, the goal was to distinguish several individuals, based on the spectrograms obtained after several recording of said specie. We colected 579 hoots, between 2010 and 2012, from wich we selected 161 hoots, corresponding to 16 individuals, and considered 14 acoustic parameters. The samples were submited to univariate and multiavariate statistical analysis, wich revealed high variability between individuals. Furthermore, the ANOVA test indicates that all vocal parameters have significant variance, more so the D1, I1, I2, FML and DTOT, according to the PCA test. The linear discriminant analysis (LDA) correctively classified 99.4% of the samples, 97.5% with cross.validation. This results reveal that tawny owl’s hoots are very distinctive at individual level especially the temporal parameters I1, I2 and DTOT. In conjuntion, a total of 7 couples vocalizations were submited to a agglomerative cluster test to assess the gender of the specimens. With the vocal convergence between couples in mind, a Dunnet test was done, which appears to confirm this hipotesis based on the D2, I1, FML, LF and DHL parameters, yet more studies consolidating this matter are required. As for the vocal stability, LDA test showed 96.1 correct attributions, 90.9% with cross-validation, wich indicates some variation but in general the hoots from a particular individual are similar on both years, infering to territorial stability.
Low Power Bulk-Driven OTA Design Optimization Using Cuckoo Search Algorithm

The design of CMOS analog integrated circuits presents low level of automation and still depends on the experience of the designer. The sizing procedure for low power applications is extremely challenging, since transistors must be biased in the sub-threshold region, whose modeling is complex and few intuitive if second order effects in sub-micron technologies are considered. This paper presents an automatic design methodology for a 0.25 V bulk-driven Miller OTA in 130 nm CMOS using bioinspired Cuckoo Search optimization technique implemented in the UCAF tool, which is able to explore efficiently the design space in strong, moderate and weak inversion regions. The resulting sized circuit presented better performance if compared to a manual design, achieving a power consumption of 10 nW and a gain-bandwidth product of 7.5 kHz. We demonstrate in this work that an efficient search in the design space with an analog CAD tool can result in optimized circuits even for transistors in the sub-threshold operation region.
Local Geometry Constraints in V1 with Deep Recurrent Autoencoders

Sparse coding is a pillar of computational neuroscience, learning filters that welldescribe the sensitivities of mammalian simple cell receptive fields (SCRFs) in a least-squares sense. The overall distribution of SCRFs of purely sparse models, however, fail to match those found experimentally. A number of subsequent updates to overcome this problem limit the types of sparsity or else disregard the dictionary learning framework entirely. We propose a weighted l1 penalty (WL) that maintains a qualitatively new form of sparsity, one that produces receptive field profiles that match those found in primate data by more explicitly encouraging artificial neurons to use a similar subset of dictionary basis functions. The mathematical interpretation of the penalty as a Laplacian smoothness constraint implies an earlystage form of clustering in primary cortex, suggesting how the brain may exploit manifold geometry while balancing sparse and efficient representations.
Rangeland Management Series: Factors and Practices that Influence Livestock Distribution

Author(s): George, Melvin; Bailey, Derek; Borman, Michael; Ganskopp, David; Surber, Gene; Harris, Norm | Abstract: Fine-tuning traditional livestock distribution techniques can improve effectiveness. Learn how to use management practices to alter distribution and to attract livestock into targeted grazing areas or away from environmentally critical areas.
Developing an automated iterative 1 near-term forecasting system for an 2 ecological study 3

13 1. Most forecasts for the future state of ecological systems are conducted once and 14 never updated or assessed. As a result, many available ecological forecasts are not 15 based on the most up-to-date data, and the scientiﬁc progress of ecological 16 forecasting models is slowed by a lack of feedback on how well the forecasts 17 perform. 18 2. Iterative near-term ecological forecasting involves repeated daily to annual scale 19
A dutch treatment of an elitist approach to articulatory-acoustic feature classification

A novel approach to articulatory-acoustic feature extraction has been developed for enhancing the accuracy of classification associated with place and manner of articulation information. This “elitist” approach is tested on a corpus of spontaneous Dutch using two different systems, one trained on a subset of the same corpus, the other trained on a corpus from a different language (American English). The feature dimensions, voicing and manner of articulation transfer relatively well between the two languages. However, place information transfers less well. Manner-specific training can be used to improve classification of articulatory place information.
THE USE OF PROSODY IN A COMBINED SYSTEM FOR PUNCTUATION GENERATION AND SPEECH RECOGNITION

In this paper, we discuss a combined system for punctuation generation and speech recognition. This system incorporates prosodic information with acoustic and language model information. Experiments are conducted for both the reference transcriptions and speech recogniser outputs. For the reference transcription case, prosodic information is shown to be more useful than language model information. When these information sources are combined, we can obtain an F-measure of up to 0.7830 for punctuation recognition. A few straightforward modi cations of a conventional speech recogniser allow the system to produce punctuation and speech recognition hypotheses simultaneously. The multiple hypotheses are produced by the automatic speech recogniser and are re-scored by prosodic information. When prosodic information is incorporated, the Fmeasure can be improved by 19% relative. At the same time, small reductions in word error rate are obtained.
On the Possibility of Consensus in Asynchronous Systems with Finite Average Response Times

It has long been known that the consensus problem cannot be solved deterministically in completely asynchronous distributed systems, i.e., systems (1) without assumptions on communication delays and relative speed of processes and (2) without access to real-time clocks. In this paper, we define a new asynchronous system model. Instead of assuming reliable channels with finite transmission delays, stubborn channels with a finite average response time was assumed (if neither the sender nor the receiver crashes), and it is assumed that there exists some unknown physical bound on how fast an integer can be incremented. Note that there is no limit on how slow a program can be executed or how fast other statements can be executed. Also, there exists no upper or lower bound on the transmission delay of messages or the relative speed of processes. The are no additional assumptions about clocks, failure detectors, etc. that would aid in solving consensus either. It is shown that consensus can nevertheless be solved deterministically in this asynchronous system model
One-to-One Encounters: Facilitators, Participants, and Friendship

In this article, I explore the claim that one-to-one encounters between community music facilitators and music participants can be described as friendships. By exploring the relational structure through the call and the welcome, I make some general comments on friendship before finally tackling the question lying at the heart of this article: How might we understand the notion of being a friend within an educative relationship?
Designing an Architecture for Delivering Mobile Information Services to the Rural Developing World

We designed, built, and deployed ConsiderIt to support the Living Voters Guide, a website where any voter could participate in writing a voters’ guide for the 2010 election in Washington. ConsiderIt is a new method of integrating the thoughts of many into a coherent form, while nudging people to consider tradeoffs of difficult decisions with an intuitive interface.
of Knowledge Management

: This article examines the dynamics of a community of practice (CoP) through a qualitative case study of eCars – Now! This open-source community was created in 2007 in Finland. While Finland was the strongest base of the community's R&D, the true nature of the community was global. It offered open-source blueprints of electric car conversion kits globally, but left the manufacturing of the kits to the markets. This study aims to answer the following research question: ‘What are the critical features that explain the change in group dynamics and also help explain why a CoP maintains or loses its vitality’? The CoP was analysed by considering its entire life cycle, from the motives for its establishment, through its active performance, to the current stage, where members have decided whether the community will remain viable. Particular attention was paid to group dynamics and issues that seem relevant to the change in dynamics that determine whether a CoP maintains its vitality or dissipates. The life cycle analysis reveals four themes which explain the change in group dynamics and the community’s dispersal: 1) differentiation and dispersal of interests, 2) growth resulting in role differentiation, 3) virtuality in community development and 4) inclusion of investors. The themes all related to the fact that the community operated not only with knowledge but also with a tangible product. The tangibility of a problem to be solved seems to play a pivotal role in a CoP’s operations and dynamics and, in part, also explains the changing role of ICT in the process. Because the CoP aimed at creating a tangible product, they needed to include outside investors in the operations; if a CoP needs external funding to achieve its goals, it creates a new situation which significantly affects its operations, particularly the group dynamics. The role of ICTs and especially of social media were particularly relevant at the early and late stages of the CoP’s life cycle. Such technology enabled the community to grow and become international. After the first stage, the community blog, FAQ and discussion forum tied together the physical meeting place and the virtual community. Today, after the declining stage, the community still exists virtually, and therefore the door remains open for the community to become vital and more active again in the future.
A JAVA-BASED FRAMEWORK FOR DISCRETE EVENT SIMULATION A framework for Discrete Event Simulation and MOdeling

The system presented bridges the gap between three different research areas: discrete event simulation, heuristic optimization methods and distributed systems technology. Its goal is to provide a framework which supports an efficient implementation of simulation optimization projects, including heuristic optimum seeking procedures and parallel execution of experiments. It is written completely in Java and only uses components that are publicly available, including software libraries from academic institutions or the Java API from Sun Microsystems. The framework is well applicable for education and further research.
Deep Learning Based Classification for Assessment of Emotion Recognition in Speech

In recent events, expanding consideration has been coordinated to the investigation of the emotional material of Voice signals, and thus, numerous frameworks have been proposed to distinguish the emotional material of a verbally expressed articulation. This paper is an analysis of voice sentiments grouping tending to three critical parts of the structure for a Voice feeling acknowledgment framework. The first problem is the decision of reasonable features for voice signal portrayal. The second problem is the structure of a fitting grouping plan and the third problem is the best possible planning of a passionate voice signal database for assessing framework execution. In this paper we will try to recommend conceivable methods for enhancing voice signal acknowledgment frameworks.
Motion synchronization in virtual environments with shared haptics and large time delays

This paper deals with a synchronization scheme to achieve a high level of consistency in peer-to-peer based virtual environments (VEs) for shared haptics with large time delays. We mainly focus on the VEs with dynamic objects that show physically realistic behaviors. The synchronization scheme utilizes an advanced feedback controller to compensate for the state error between geographically separated sites. Using feedback control theory of time delay systems, the controller is shown to result in closed loop stability and robust to perturbations in the time delay. The maximum allowable delay is determined using stability analysis, which indicates the allowable bound on the communication delay for the system.
Source Apportionment of Air Particulates in South Africa: A Review

Source apportionment studies are useful in understanding sources of pollution and can be used in health risk assessments to evaluate the human health impacts from air pollutants. This study reviewed and analysed available source apportionment studies of air particulate in South Africa in October 2016. Searches were performed using different databases for peer reviewed articles including Google scholar, Scopus, EbscoHost, Science Direct and National Research Foundation database. Source categories were identified and these varied depending on the sites where the research was conducted (rural, urban or remote) but biomass burning dominated. A total of 35 source apportionment records were found with the majority of studies in urban areas (60%) while industrial sites had the least number of records (17.1%). The period 2011-2016 had the highest number of records while 1990-1995 had only three publicly available studies. There is limited research on source apportionment studies of air particulate in South Africa, calling for more research in this area.
A New and E(cid:14)cient All-Or-Nothing Disclosure of Secrets Protocol

Two-party protocols have been considered for a long time. Currently, there is a renewed e(cid:11)ort to revisit speci(cid:12)c protocols to gain e(cid:14)ciency. As an example, one may quote the breakthrough of [BF97], bringing a new solution to the problem of secretly generating RSA keys, which itself goes back to the pioneering work by Yao [Yao86]. The All-Or-Nothing Disclosure of Secrets protocol (ANDOS) was introduced in 1986 by Brassard, Cr(cid:19)epeau and Robert [BCR87]. It involves two parties, a vendor and a buyer, and allows the vendor, who holds several secrets, to disclose one of them to the buyer, with the guarantee that no information about the other secrets will be gained. Furthermore, the buyer can freely choose his secret and has the guarantee that the vendor will not be able to (cid:12)nd out which secret he picked. In this paper, we present a new protocol which achieves the same functionality, but which is much more e(cid:14)cient and can easily be implemented. Our protocol is especially e(cid:14)cient when a large number of secrets is involved and it can be used in various applications. The proof of security involves a novel use of computational zero-knowledge techniques combined with semantic security.
The frost resistance of alkali-activated cement-based binders

This chapter presents the susceptibility of alkali-activated binders to freeze-thaw cycles, which could lead to internal cracking and/or surface scaling. Since alkali-activated materials (AAMs) are porous, the action of frost cannot be neglected. After having described the forms of frost damage and the mechanisms and significant parameters of frost action, a synthesis of the results found in the literature regarding frost resistance of alkali-activated binders based on slag, fly ash and metakaolin is presented. AAM can suffer from internal cracking and surface scaling but alkali-activated binders generally tend to be less affected by frost than Portland cement. The porous network, especially the air entrained properties, seems to be important, as for Portland cement concrete.
Combinators for bidirectional tree transformations: A linguistic approach to the view-update problem

We propose a novel approach to the view-update problem for tree-structured data: a domain-specific programming language in which all expressions denote bidirectional transformations on trees. In one direction, these transformations---dubbed lenses---map a concrete tree into a simplified abstract view; in the other, they map a modified abstract view, together with the original concrete tree, to a correspondingly modified concrete tree. Our design emphasizes both robustness and ease of use, guaranteeing strong well-behavedness and totality properties for well-typed lenses. We begin by identifying a natural space of well-behaved bidirectional transformations over arbitrary structures, studying definedness and continuity in this setting. We then instantiate this semantic framework in the form of a collection of lens combinators that can be assembled to describe bidirectional transformations on trees. These combinators include familiar constructs from functional programming (composition, mapping, projection, conditionals, recursion) together with some novel primitives for manipulating trees (splitting, pruning, merging, etc.). We illustrate the expressiveness of these combinators by developing a number of bidirectional list-processing transformations as derived forms. An extended example shows how our combinators can be used to define a lens that translates between a native HTML representation of browser bookmarks and a generic abstract bookmark format.
Net value of farmland ecosystem services in China

Farmland ecosystems are one of the most important landscapes in the world and provide many important ecosystem services for humans. However, most methods of calculating the value of ecosystem services (VES) for these ecosystems have neglected the costs of providing these services or have only considered direct costs. As a result, they have led to the adoption of uneconomical or suboptimal land use and environmental conservation strategies. Because it is increasingly necessary to identify approaches that will produce net benefits both for humans and for the environment that supports us, it is necessary to accurately account for these costs. In this paper, we propose a method for assessing the net value of ecosystem services (NES) for farmland ecosystems, which accounts for both direct and indirect costs, and apply this approach to agriculture in China to provide an improved basis for farmland management. We found that the NES of Chinese farmland decreased from 4.2 × 1012 RMB in 1952 to 3.7 × 1012 RMB in 2014 (1RMB=0.1628USD), in part due to reductions in the area of agricultural land. In addition, the NES in 2014 equaled only 47.4% of the VES, and this percentage would be even lower if more costs could be quantified. Because the direct and indirect costs differ among China's regions, the magnitude of this decrease also varies regionally. To protect China's food security and ecological health, the government will need to adjust farmland management in ways that account for these regional differences to ensure that both humans and our environment benefit.