Miracle-dz/UniFAR-FTUs huggingface dataset:
Processing Parameter DOE for 316L Using Directed Energy Deposition

The ability to produce consistent material properties across a single or series of platforms, particularly over time, is the major objective in metal additive manufacturing (MAM) research. If this can be achieved, it will result in widespread adoption of the technology for industry and place it into mainstream manufacturing. However, before this can happen, it is critical to develop an understanding of how processing parameters influence the thermal conditions which dictate the mechanical properties of MAM builds. Research work reported in the literature of MAM is generally based on a set of parameters and/or the review of a few parameter changes, and observing the effects that these changes (i.e., microstructure, mechanical properties) have. While these articles provide results with some insight, there lacks a standard approach that can be used to allow meaningful comparisons and conclusions to be made concerning the optimization of the processing variables. This study provides a template which can be used for making comparisons across DED platforms. The tests are performed with a design of experiments (DOE) philosophy directed to evaluate the effect of selected parameters on the measured properties of the DED builds. Specifically, a laser engineering net shaping system (LENS) is used to build multilayered 316L coupons and analyze how build parameters such as laser power, travel speed, and powder feed rate influence the thermal conditions that will define both microstructure and microhardness. A fundamental conclusion of this research is that it is possible to repeatedly obtain a consistent microstructure that contains a fine cellular substructure with a low level of porosity (less than 1.1%) and with microhardness that is equal to or better than wrought 316L. This is mainly achieved by maintaining an associated powder flow to travel speed ratio at the power level, ensuring an appropriate net heat input for the build process.
Genetic Diversity within Wild Potato Species (Solanum spp.) Revealed by AFLP and SCAR Markers

Exploitation of variability displayed by wild Solanum species for breeding the cultivated potato (S. tuberosum) requires phenotypic and genotypic characterization of germplasm resources. In the present work, a collection of 15 wild Solanum species was investigated for resistance to pathotype Ro2 of the nematode Globodera rostochiensis. Most of the genotypes reduced reproduction of the nematode, compared to the control variety Spunta, a highly resistant genotype being an accession of S. tuberosum spp. andigena. The genetic variability of the Gro1 gene cluster, which confers resistance to some pathotypes of G. rostochiensis, was then studied in the Solanum species used in this study. For this purpose, SCAR markers for eight paralogues of Gro1 gene were developed. No species showed the same pattern of the resistant control genotype. Moreover, wide-genome variability was also assessed by using AFLP markers, which allowed species-specific markers to be identified for each genotype analyzed.
Tourism e-services and Jewish heritage: a case study of Prague

Abstract Our paper describes the new potential for tourism e-services (smartphone apps and enhanced Internet platforms) for promoting the intangible cultural heritage in European destinations using the example of Prague’s Jewish heritage. Although quite a few tourism e-services are present in the tourism market in Prague, their full potential has not been exhausted. The paper shows that one of the ways how the intangible cultural heritage in European destinations can be promoted is through employing the apps for smartphones and tablets involving local myths and legends constituting the backbone of local cultural and religious traditions. Our research is based on the empirical results of the three stages of our own questionnaire survey conducted in Prague in May–August 2013 for assessing the revealed preferences of Prague’s residents and tourists for such apps and novel IT solutions. Our results demonstrate that a potential app should feature a narrative, a possibility to upload additional information, as well as interactive online maps. The app should be offered at both App Store and Android Market Play free of charge with embedded in-app purchases that might reach up to 3 EUR in additional payments. The paper tackles a top-notch field of electronic tourism (or e-tourism) that embeds the mobile technologies and the intangible cultural heritage approach. The results and outcomes might be useful not only for IT developers specialising in digital tourism but also for local stakeholders and residents.
Some Features of Intestinal Metaplasia in Children

Background and aims: Intestinal metaplasia(IM) of stomach mucosa in children is rare problem. Aim of the study is to apply the criteria used in adults for diagnostic and control of IM in pediatric cohort. Patients and methods: From 2011 to 2015 endoscopy with NBI was performed on 1860 children. Endoscopic studies were performed using high-definition (HD) resolution equipment with electronic magnification and/or standard-definition (SD) resolution with optical magnification using Exera II and III by Olympus (Tokyo, Japan) systems. Narrow band imaging (NBI) was used for illumination. Two groups were founded. The main group included 24 children with morphologically verify intestinal metaplasia (IM) and 65 children were included in the control group. Patients in the main group have precision biopsy from IM area. The main and the control group also underwent multiple non-targeted biopsies in accordance with OLGA criteria. H. pylori was defined in two ways - morphologically and С13 breath test. Evaluation of pepsinogens I and II, gastrin-17 levels in blood was performed in group with IM also. Results: The sensitivity and specificity of high-resolution endoscopy with NBI for the detection of intestinal metaplasia (IM) foci were 100% (85.18-100.00) and 98.59% (92.40-99.96), respectively. “Light blue crests” – was leading endoscopic symptom of IM. In 23 of 24 cases, the zone of IM was localised in the pre-pyloric zone, with trend to stomach angle. In the group with IM, H.pylori were detected in 2 cases (8.3%), and in the control group, in 35 cases (53.8%). The relative risk of detection of H. pylori in the presence of IM was 0.0774 (0.0112-0.5341), and the Odds ratio was 0.0373 (0.0047-0.2926). The pepsinogen I and pepsinogen II levels were significantly higher in the control group (P< 0.01). The ratio of the pepsinogen I and pepsinogen II levels was reliably different in these groups. There were no reliable differences in the gastrin 17 levels. Conclusions: Endoscopy with NBI for detecting of intestinal metaplasia is a universal diagnosis tool for this type of pathology. The incidence of intestinal metaplasia in the main group was 1.29%. The visualised foci of intestinal metaplasia in children are mainly associated with the pylorus and have a vector of propagation towards the lesser gastric curvature. The probability of identifying the association of Helicobacter pylori in children with intestinal metaplasia is very low. Keywords: Intestinal Metaplasia; High-Resolution Endoscopy with NBI Illumination; Contamination of Gastric Mucosa With H. Pylori; Diagnostics; Children;
Harnessing socio-cultural constraints on athlete development to create a form of life

Sporting expertise is multidimensional and develops when an athlete interacts with a range of task and environmental constraints. Ecological dynamics is a suitable theoretical framework to understand these complex and dynamic interactions due to the importance placed on the person-environment mutuality. A key principle of ecological dynamics, when faced with the challenge of developing skilled performers, is the influence of task and environmental constraints on an athlete’s ability to become attuned to the affordances (opportunities for action) in a performance landscape. Athletes who are unreflectively responsive to a rich and diverse range of affordances will be better equipped to act skilfully in competition. Ecological psychologist James Gibson introduced the concept of affordances as ”the affordances of the environment are what it offers the animal” (e.g. a ball offers kicking, or a slow player offers a quick player running past, or a hard pitch offers sidestepping on). Recently several scholars have further developed Gibson’s concept of affordances, here we aim to combine these interpretations to propose that the variety of socio-cultural practices that exist in what Wittgenstein termed forms of life (e.g. behaviours and customs of our communities), can influence an athlete’s affordance responsiveness. Although recent conceptual interpretations make valuable contributions to the literature on affordances, little is known in the sport domain about how identifying a form of life can help sport padagogists to gain an understanding of how socio-cultural practices influence affordance responsiveness and sporting expertise. Understanding more about this important area can help sport padagogists to manipulate socio-cultural constraints to enhance the quality of skill and expertise acquisition in specific sports. Therefore the purpose of this presentation is to (1) provide a brief historical insight into why forms of life and the associated behaviours and customs may exist in sport performance and coaching. (2) Using examples from the sport of rugby league we discuss how recent interpretations of affordances can provide insights into how forms of life can affect an athlete’s skilled performance. Keywords: Forms of Life, Socio-cultural constraints, Affordances, Skill Acquisition.
Comparative Studies of Torque Performance Improvement for Different Doubly Salient Synchronous Reluctance Machines by Current Harmonic Injection

A total of three types of doubly salient synchronous reluctance machines have been comparatively studied to improve the torque performance using current harmonic injection methods. These machines are derived from the switched reluctance machines (SRMs) with different winding configurations, such as the double/single-layer mutually coupled SRMs (MCSRMs) and fully pitched SRMs (FPSRMs), by supplying them with sinewave current. Such current supply mode can lead to higher torque/power density and lower vibrations and acoustic noise compared with the conventional rectangular current supply. The proposed torque analytical model can predict the instantaneous torque of the doubly salient SRMs with sinewave current excitation and the current harmonics also can be selected in order to reduce the torque ripple and/or increase the average torque. It has been found that the third current harmonic injection shows the best performance for single-layer MCSRMs and FPSRMs because it improves the average torque and reduces the torque ripple at the same time. However, it has little influence on doubly-layer MCSRMs. To improve the torque performance of such machines, other harmonic currents, e.g., fifth and seventh, need to be used. Both static and dynamic tests have been carried out to validate the predictions.
The relationship between ownership concentration and performance in Czech Republic

Theory suggests that low ownership concentration is associated with agency costs and highly concentrated ownership structures induce controlling owners to pursue private benefits. Both situations are likely to be associated with negative effects on corporate performance. A number of studies have tested the relationship between ownership concentration and performance empirically, failing to provide any consistent results. While most research has been devoted to study cases of developed countries, the literature on Central and Eastern European countries does not provide better perspectives. The goal of this paper is to explore the relationship between ownership concentration and performance in the case of Czech firms. The research sample contains 34,284 companies and their financial data in the period of 2007-2015. Using linear regression analysis, an inverted U-shaped relationship was found between the Herfindahl index and profitability while controlling for firm size, capital structure, and industry affiliation. No evidence of a linear relationship. Based on one of the largest samples of firms, it is suggested that more concentrated ownership reduces the principal-agent problem and supports performance, but only to a certain extent, where the potential principal-principal problem can still prevail. Moreover, performance is maximized when there is a controlling owner. The findings can be used by policy makers when designing ownership structures.
Evaluation of transport in stratospheric models

We evaluate transport characteristics of two- and three-dimensional chemical transport models of the stratosphere by comparing their simulations of the mean age of stratospheric air and the propagation of annually periodic oscillations in tracer mixing ratio at the tropical tropopause into the stratosphere to inferences from in situ and satellite observations of CO2, SF6, and water vapor. The models, participants in the recent NASA “Models and Measurements II” study, display a wide range of performance. Most models propagate annual oscillations too rapidly in the vertical and overattenuate the signal. Most models also significantly underestimate mean age throughout the stratosphere, and most have at least one of several unrealistic features in their mean age contour shapes. In the lower stratosphere, model-to-model variation in N2O, NOy, and Cly is well correlated with variation in mean age, and the magnitude of NOy and Cly variation is large. We conclude that model transport inaccuracies significantly affect simulations of important long-lived chemical species in the lower stratosphere.
A Better Phone Set for the TIMIT Dataset Discovered in Clustering of Listen, Attend and Spell

Listen, Attend and Spell(LAS)[4] maps a sequence of acoustic spectra directly to a 1 sequence of graphemes, with no explicit internal representation of phones. This 2 paper asks whether LAS can be used as a scientific tool, to discover the phone 3 set of a language whose phone set may be controversial or unknown. Phonemes 4 have a precise linguistic definition, but phones may be defined in any manner 5 that is convenient for speech technology: we propose that a practical phone set 6 is one that can be inferred from speech following certain procedures, but that is 7 also highly predictive of the word sequence. We demonstrate that such a phone 8 set can be inferred by clustering the hidden node activation vectors of an LAS 9 model during training, thus encouraging the model to learn a hidden representation 10 characterized by acoustically compact clusters that are nevertheless predictive of 11 the word sequence. We further define a metric for the quality of a phone set (sum 12 of conditional entropy of the phone set given graphemes, and given acoustics), and 13 demonstrate that according to this metric, the clustered-LAS phone set is better 14 than the original TIMIT[5] phone set. 15
Accelerated Load Balancing of Unstructured Meshes

Unstructured mesh applications running on large, parallel, distributed memory systems require the computational work related to mesh entities to be evenly distributed across processes in order to achieve maximal performance. To efficiently balance meshes on systems with accelerators the balancing procedure must utilize the accelerator. This work presents algorithms and speedup results using OpenCL and Kokkos to accelerate critical portions of the EnGPar diffusive load balancer.
THE ROLE OF RECOMBINANT IL-10 ON THE SERUM LEVEL OF TNF-?, ONE HOUR POST TRAUMATIC BRAIN INJURY OF THE WISTAR RAT

Background: Brain injury often occurs not only primary brain injury, but often also occur secondary brain injury. Inflammation is a process that occurs immediately after trauma characterized by activation of the mediator substance. TNF-? is a major cytokinee involved in the inflammatory processes that have adverse effects if the serum level are excessive. There needs to be a balance of the inflammatory process in the brain injury so things that harm does not occur. As anti-inflammatory IL- 10 plays an important role in maintaining the balance. The objective of this study is to determine the effect of IL-10 intervention as an anti -inflammatory will decrease the serum level of TNF-? in traumatic brain injury. Material And Method: Experimental Study in the Rattus Wistar rats, post test control group design, male, aged 3-4 months, with body weight (BW) 300-400g, were obtained from the Laboratory Animal Faculty of Medicine, University of Hasanuddin as much as 24 tails, which is the result of breeding. Subjects were divided into four groups, each group of six rats, treated with controlled cortical impact model (Feeney’s weight-drop) of traumatic brain injury. Blood taken with capillary tube in retro-orbita plexus or sinus.This study has approved by ethical clearance for research. Results: Levels of TNF-? group of rats 1 hour post-trauma without administration of recombinant IL-10 (28.58 ± 7.28) pg / mL; was significantly higher (p 0.05) in the group without craniectomy or craniectomy group without head injury. Conclusions: Intervention of recombinant IL-10 decreases levels of TNF-? serum soon after traumatic brain injury in rats.
Seasonal Scarcity and Sharing Norms

Sharing provides one of few sources of insurance in poor communities. It gains prominence during adverse shocks, often largely aggregate, when it is also costliest for individuals to share. Yet it is little understood how scarcity affects individual willingness to share and willingness to enforce sharing from others, an important ingredient in sustaining prosocial behavior. This is what this paper examines. I conduct repeated within-subject lab-in-the-field experiments among Afghan subsistence farmers during a lean and a postharvest season of relative plenty. These farmers experience seasonal scarcities annually. Using dictator and third party punishment games I separate individual sharing behavior from enforcement of sharing norms. While sharing exhibits high degree of temporal stability at both the aggregate, and, to a large extent, at the individual level, the enforcement of sharing norms is substantially weaker during the lean season. The findings suggest that the farmers are capable of sustaining mutual sharing through transitory periods of scarcity. It remains an open question whether exposure to unexpected shocks or prolonged periods of scarcity might result in breakdown of prosociality due to loosened sharing norms enforcement on a community level.
Interaction with 3 D gesture and character input in Virtual Reality

Hand gesture recognition is a key aspect to make interaction of virtual reality more convenient. A good way to make users’ idea understood by computers including characters input plays an important role in interaction. Current methods of hand gesture and character input are too limited to make full use of powerful capacity that computers have nowadays. In this paper, we propose a natural 3D input method based on stereo cameras as an interface of human and machine. We segment the hand out based on skin-color detection and train a neural network based on Hu moments to recognize valid and invalid gestures defined in our paper. For valid gestures, we implement stereo matching and 3D coordinate calculation and line them up to formulate characters. Our method can robustly recognize 3D gestures in different directions and make users’ input more free compared with traditional ways.
The Granular Nature of the Great Export Collapse in German Manufacturing Industries, 2008/2009

Abstract This paper uses comprehensive high-quality panel data from official statistics for exporting enterprises to investigate the micro-structure of the recent export collapse in manufacturing industries in Germany during the crisis of 2008/2009. Almost all of the decline in exports was due to negative changes of exports in firms that continue to export (i.e. at the so-called intensive margin) while the decrease of exports due to export stoppers (at the so-called extensive margin) was tiny. It is shown that idiosyncratic shocks to very large firms played a decisive role in shaping the export collapse.
Design and Verification of Software Middleboxes using Gravel

Middleboxes play a critical role in modern networks, yet providing bug-free middleboxes implementations remains challenging. This paper presents Gravel, a framework for building formally verified middleboxes. Gravel allows developers to specify high-level middlebox-specific properties, as opposed to generic robustness and liveness conditions, and checks correctness in low-level implementations without manual proofs. Further, Gravel reduces the proof burden by breaking down middlebox functionalities into smaller packet processing elements that can be independently verified. We build a NAT, a load balancer, and a firewall with Gravel and then verify their correctness. Our evaluation shows that middleboxes built with Gravel avoid bugs similar to those found in today’s middleboxes and achieve similar performance to their unverified counterparts.
INTER-REGIONAL COOPERATION ON REGIONAL LANDFILL MANAGEMENT IN URBAN AREA : A CASE STUDY IN SOUTHERN KALIMANTAN , INDONESIA Irawanto STIA

This study aims to investigate the inter-regional cooperation on regional landfill management in urban areas, particularly in the case of Banjar Bakula in Southern Kalimantan, Indonesia. Intergovernmental relations system and cooperation among regions becomes important at this time as there are no areas that are isolated and able to meet the needs of the region independently. The relationship among regional governments, especially in the metropolitan areas, has the dynamic and growing characteristics, thus requiring special governance, particularly in the processing management of regional landfill in the urban area, including in Banjar Bakula. A development policy in the form of programs or projects involving some areas requires institutional arrangements both among the involved government agencies so that the programs of cooperation can be realized efficiently and effectively. Some hindrances related to the implementation of the policy and the issues upon governance structures will be the reference in the conduct of inter-regional cooperation.