bluuebunny/crossref_metadata_2025 huggingface dataset:
Décontextualisation et décentrement dans « [Ptolemy] » de Paul Muldoon
Authors: Schneider Florence
Published: December 2015

As is often the case in Paul Muldoon 's poetry, "[PtolemyY revolves in more ways than one around the issue of the relation between the text and the hors-texte : the given nature of the poem as map, a map which actually conceals issues of colonialism beneath its typographic layout, triggers diegetic or poetic connections with other poems, connections which are themselves superseded by complex patterns of negation or validation of historical and geographical actualities. The poem thus becomes the locus where the position of the subject as originator of language and knowledge is called into question.
Entre Swedenborg et Henry James : « Green Tea » de Sheridan Le Fanu, ou l'échec du détective
Authors: Girard Gaïd
Published: December 2015

This paper examines one of Le Fanu 's best known ghost stories, "Green Tea" (In a Glass Darkly, 1872), and focuses on its epistemological and literary context. The text presents Doctor Hesselius, who specialises in the disorders of the human soul ; he is a believer in the theosophy of Swedenborg, and an obvious representative of the wealth of research about the human psyche that was being undertaken in the 19th century, often linked to "mesmerism". In "Green Tea", Dr Hesselius acts as a detective and the text itself is a precursor of the genre to come, although it paradoxically already indicates its limits. Hesselius' theories are unable to save his patient. In the same manner as the convictions of the governess in The Turn of the Screw, his theories build up a univocal system of thought based on deduction, which is typical of detective fiction, and which ultimately ends up with the death of the ill-protected character. In both stories, narrative strategies set in perspective the declared knowledge of the detective, thus giving the text its pervasive uncanny atmosphere.
Dialect, Gender, and Colonialism in The Real Charlotte
Authors: McClellan Ann
Published: December 2015

This article analyzes how in The Real Charlotte Edith Somerville and Martin Ross use idiomatic speech, dialect, and accent as means to challenge traditional notions of a unified Irish national identity or culture. While some critics read such code-switching in terms of class, this article pursues this phenomenon in terms of gender and colonialism. The multiplicity of different dialects and discourses within the novel and the ability for characters to move between them implies that it is almost impossible to impose a single interpretive strategy or rubric onto Irish experience or identity, thus illustrating the fluid nature of language. As a result, identity - individual or national - becomes a much more difficult project. For Somerville and Ross, individual and national identity are both composed and camouflaged by language.
Conceptions corporatistes en Irlande et dans la péninsule ibérique
Authors: Boullet Vanessa
Published: December 2015

Cet article examine la conception corporatiste de de Valera en Irlande et la met en regard avec celle de Primo de Rivera et de Franco en Espagne et avec celle de Salazar au Portugal. Il met également en exergue la mutation d'un mouvement corporatiste social et moral dans les années trente en un néo-corporatisme au début des années soixante dans la République d'Irlande.
A View from the Grave : Translation into English in Ireland
Authors: Nï Chuilleanâin Eiléan
Published: December 2015

A writer in Ireland whose background is bilingual finds her sense of language displaced and distorted, not just in relation to Standard English, but in relation to other languages, because of the greater intensity of the Gaelic field, related to family and childhood, which is superimposed first on Hiberno-English and then on other languages. Having translated from Irish the poems of another bilingual writer, Nuala Ni Dhomhnaill, I argue from the overlap between our two languages that the enterprise of translation and its readership need to be redefined in this context. When translating from Romanian, mainly into English but also into Irish, I found the work of Ileana Màlàncioiu gave me opportunities to explore the limits of the English that I write. Many instances of the impact of Irish and of Hiberno-English on my translations into English reflect the nature of the bilingual experience, my own and that of my readers.
"As He Conjugates the Verb 'to have' " : The Art of Possession in Muldoon's Madoc : A Mystery
Authors: Fitzpatrick Smith James
Published: December 2015

In Madoc : A Mystery, Paul Muldoon is less interested in the products and end results of power than he is in the processes and methods by which such power comes into being and is asserted. Indeed, power and possession are fitting counterparts within this wild epic, and yet their machinations are hazy and origins are obscured. Throughout Madoc : A Mystery, Muldoon considers the repercussions of imperial "possession" at the same time as he explores the social implications behind such a blurred legacy. A close attention to detail uncovers a repeated discourse that coalesces questions of legacy, ownership, and identity - the language of heraldry. Heraldic terms and images litter the poem's pages, and Muldoon is careful in his blazon, making detailed inquiries not simply into complacent notions of tradition or antiquity, but also into the construction of a stable, permanent, and yet ultimately specious, line of descent.
"The fragments they shore up against their ruins" : Loyalism, Alienation and Fear of Change in Gary Mitchell's As the Beast Sleeps and the Force of Change
Authors: Gray Billy
Published: December 2015

The aim of this article is to examine how Gary Mitchell's As the Beast Sleeps and The Force of Change engage with what the Ulster poet Tom Paulin has described as "the unbudging, implacable destructiveness" of the triumphalist Loyalist ethos. In these two plays, Mitchell argues that the notion of cultural and physical resistance, not only against a hostile and encroaching world, but also towards the very concept of change itself, represents the dominant ethos of the contemporary Loyalist vision.
Passports for the New Irish The 2004 Citizenship Referendum
Authors: Ni Chiosâin Bairbre
Published: December 2015

In June 2004, the Irish voted in a referendum which proposed to restrict access to Irish citizenship. After several weeks of heated debate, the Citizenship Referendum was approved by almost 80 % of the electorate. This article describes the legal context which existed before June 2004 to determine who was entitled to Irish citizenship. It then studies the debate surrounding the proposed referendum, analyses the arguments put forward by both sides and tries to establish the extent to which racism could have been a factor in the massive Yes vote. It describes briefly the changes which took place in legislation after the referendum. To conclude, it looks at the government's citizenship motives in calling the referendum.
The Performance of Power in Convictions
Authors: Urban Eva
Published: December 2015

This paper examines the performance of power relations between the justice system and the citizens of Northern Ireland, as enacted in Tinderbox Theatre Company's site-specific production Convictions. This unique and non-replicable production was presented on the ground floor of the Crumlin Road Courthouse in Belfast in 2000, at a time of political change in Northern Ireland. Convictions consists of a collection of seven completely discreet and juxtaposed playlets, as well as visual art installations, which are organised as a sequence of episodes in the manner of Brechtian epic theatre. Within the space of the Crumlin Road Courthouse the performance of these plays and the art installations which accompany them, generate a metatheatrical dimension, integrating and transforming the significance of the public building for an audience familiar with the courthouse in its civic (non-theatrical) context.
The effect of beta blocker withdrawal on myocardial SPECT modeled from adenosine 13N-ammonia PET
Authors: Hoffmeister K. , Preuss R. , Weise R. , Burchert W. , Lindner O.
Published: December 2015

Aim: The effect of beta blockers (BB) on myocardial imaging has been studied in several SPECT and PET studies with divergent results concerning perfusion and impact on diagnostic accuracy. The present study evaluated the effect of BB withdrawal on virtual SPECT studies modeled from quantitative PET perfusion scans. Patients, methods: Data from 20 CAD patients scheduled for adenosine 13N-ammonia imaging with and without BB were considered. Modeling the uptake characteristics of 99mTc-MIBI, all parametric stress PET polarmaps were transferred to virtual 20-segment SPECT polarmaps. The SPECT studies were categorized with a 5-point score and read to assess the effect of the BB withdrawal on scan result and interpretation. Results: The SPECT analysis revealed a mean score of 6.0 ± 4.7 with, and of 5.9 ± 4.5 without BB (p = 0.84). In 260 (74.9%) segments the scores were equal in both conditions. Without BB a downstaging was recorded in 44 segments (12.7%), an upstaging in 43 segments (12.4%). An essentially different interpretation (shift from medical therapy recommendation to angiography) was recorded in one patient. In six cases the interpretation differed mildly. Conclusion: In the majority of patients studied, scan results and interpretation remain unchanged after discontinuation of the BB. Nevertheless, the segmental scan results are not uniformly affected. The recommendation to stop BBs prior to stress testing in order to ensure the highest MBF remains advisable. If temporary BB withdrawal is unfeasible due to contraindications, a tight clinical schedule, or because a patient forgot to withhold the BB, it is appropriate to perform adenosine stress testing according to the results of this study.
Quantitative Evaluation of Performance during Robot-assisted Treatment
Authors: Biffi E. , Maghini C. , Servodio Iammarrone F. , Gagliardi C. , Germiniasi C. , Pedrocchi A. , Turconi A. C. , Reni G. , Peri E.
Published: December 2015

Introduction: This article is part of the Focus Theme of Methods of Information in Medicine on “Methodologies, Models and Algorithms for Patients Rehabilitation”. Objectives: The great potential of robots in extracting quantitative and meaningful data is not always exploited in clinical practice. The aim of the present work is to describe a simple parameter to assess the performance of subjects during upper limb robotic training exploiting data automatically recorded by the robot, with no additional effort for patients and clinicians. Methods: Fourteen children affected by cerebral palsy (CP) performed a training with Armeo®Spring. Each session was evaluated with P, a simple parameter that depends on the overall performance recorded, and median and interquartile values were computed to perform a group analysis. Results: Median (interquartile) values of P significantly increased from 0.27 (0.21) at T0 to 0.55 (0.27) at T1 . This improvement was functionally validated by a significant increase of the Melbourne Assessment of Unilateral Upper Limb Function. Conclusions: The parameter described here was able to show variations in performance over time and enabled a quantitative evaluation of motion abilities in a way that is reliable with respect to a well-known clinical scale.
Les affaires de Monsieur Asiaticus
Authors: Jolivet Vincent
Published: December 2015

Résumé Le croisement des informations transmises par les sources anciennes et par les fouilles archéologiques menées par l’ École française de Rome entre 1981 et 2005 sur le site des anciens jardins de Lucullus (Trinité-des-Monts et villa Médicis) permet de mieux comprendre la figure ambiguë du sénateur viennois Valerius Asiaticus, cos. 35 et 46. Les grands travaux auxquels fait allusion Tacite peuvent aujourd’ hui être interprétés comme un formidable instrument de conquête du trône impérial, étroitement lié à la figure d’ Auguste et placé sous la protection de Jupiter. Ils pourraient contribuer à expliquer la disgrâce de ce grand personnage, condamné au suicide volontaire en 47 apr. J.-C.
Combining Evidence-Based Practice, Learner-Guided Education, and Continuing Education
Authors: Andrew Tahnee J. , Theiss Michelle
Published: December 2015

Personal interest and investment in a topic can bring learning to life and affect real change in nursing practice. This article explains an innovative approach to combining learner-guided education and continuing education credit through a three-part approach to implementing evidence-based practice. This method can be used for nurses in any practice setting to generate learner interest and participation, while improving patient care.

J Contin Educ Nurs.
2015;46(12):535–537.
Personal Information Management for Nurses Returning to School
Authors: Bowman Katherine
Published: December 2015

Registered nurses with a diploma or an associate's degree are encouraged to return to school to earn a Bachelor of Science in Nursing degree. Until they return to school, many RNs have little need to regularly write, store, and retrieve work-related papers, but they are expected to complete the majority of assignments using a computer when in the student role. Personal information management (PIM) is a system of organizing and managing electronic information that will reduce computer clutter, while enhancing time use, task management, and productivity. This article introduces three PIM strategies for managing school work. Nesting is the creation of a system of folders to form a hierarchy for storing and retrieving electronic documents. Each folder, subfolder, and document must be given a meaningful unique name. Numbering is used to create different versions of the same paper, while preserving the original document.

J Contin Educ Nurs.
2015;46(12):557–561.
La intimidad corporal en la filosofía de Ortega y Gasset
Authors: Conill Sancho Jesús
Published: December 2015

Ante la crisis social de la intimidad en favor de la extimidad, en las neurociencias y su reducción a privacidad en el derecho, este artículo expone la idea orteguiana de la intimidad, destacando su carácter corporal. Esta noción corporal de la intimidad descubre el ámbito sentimental de la realidad (lirismo), superando el cosismo y el subjetivismo, mediante el análisis del mecanismo de la metáfora y de la capacidad de ensimismamiento. El modo de realidad de la intimidad se revela como ejecutividad (realidad ejecutiva) y constituye una alternativa al idealismo, al objetivismo de la conciencia y a la introspección psicológica.
Kant y la crítica en clave jurídica del colonialismo
Authors: Sánchez Madrid Nuria
Published: December 2015

La crítica de Kant al colonialismo y sus consideraciones sobre la existencia de una multiplicidad de razas humanas se han mantenido hasta muy reciente fecha en la retaguardia de la atención dedicada a sus textos. Sin embargo, los reproches que Kant dirige desde la autoridad del derecho a las prácticas colonialistas de su época constituyen uno de los aspectos más actuales de su pensamiento. Este trabajo pretende exponer y discutir el horizonte interpretativo abierto por el volumen colectivo Kant and Colonialism. Historical and Critical Perspectives, editado en 2014 por Katrin Flikschuh y Lea Ypi en la editorial Oxford University Press.
Effect of Poly(Methyl Methacrylate) (PMMA) on Tensile Properties and Spectroscopy Infrared (FTIR) Characteristics of LDPE/WHF Composites
Authors: Tan Soo Jin , Supri A.G. , Foo Kai Loong , Al Bakri A.M. Mustafa , Liew Yun Ming , Heah Cheng Yong
Published: December 2015

In this work, the effect of PMMA in low density polyethylene/water hyacinth fibers composites were prepared and characterized in terms of tensile properties and FTIR characteristics. Water hyacinth fibers (WHF) were incorporated into the LDPE matrix with different fiber loading. LDPE/WHF and LDPE/WHFPMMA composites were prepared with Z-blade mixer at 180 °C with rotor speed of 50 rpm. The PMMA modified WHF increased the tensile strength and Young’s modulus while reduced the elongation at break of LDPE/WHFPMMA composites in comparison with LDPE/WHF composites. The absorption peak at 1736.28 cm-1 indicated the presence of ester carbonyl group (C=O) in LDPE/WHFPMMA composites.
Effect of Alkali Treatment Using Calcium Hydroxide and the Fiber Length on the Strength of Sugarcane Bagasse Fibers-Polypropylene Composites
Authors: Anggono Juliana , Sugondo Suwandi , Henrico Steven , Purwaningsih Hariyati
Published: December 2015

Milling sugarcanes to produce sugar generates by-product called bagasse. Due to the large availability and low cost, the potential of obtaining renewable and biodegradable fibers from bagasse had been explored. To produce fibers from these bagasse, the bagasse was treated in alkali solution using 14 % v/v calcium hydroxide, Ca (OH)2 at high temperature (60-70°C) for 4 hours. After treatment and washed to remove dissolved substances, the fibers were cut into 3 and 5 cm length. Some fibers were prepared in their original length. These fibers were mixed with polypropylene (PP) matrix in weight % ratios of bagasse fibers/PP 20/80, 25/75, and 30/70 and hotpressed to make composite samples. Composites produced were characterised with tensile test to evaluate their tensile properties. Scanning electron microscopy (SEM) was performed on the fiber surface as well as on the fracture area of the tensile tested samples. Tensile strength of the composite shows an increase with the increase of the fiber length and weight % ratios of bagasse fibers/PP up to 25/75 and decreases when bagasse fibers were added to 30 wt.%. The highest strength of 11,30 MPa was obtained when 5 cm fibers were used in a weight % ratio of bagasse fibers/PP at 25/75. SEM study found a greater number of fibers oriented perpendicular to the tension direction.
Flood Mud as Geopolymer Precursor Materials: Effect of Flood Mud/Alkaline Activator and Na2SiO3/NaOH Ratios on Compressive Strength
Authors: Al Bakri Abdullah Mohd Mustafa , Liew Yun Ming , Mohd Tahir Muhammad Faheem , Ghazali Che Mohd Ruzaidi , Hussin Kamarudin , Abdullah Alida
Published: December 2015

This paper investigates the potential and suitability of flood mud to be used in geopolymer technique as construction materials. Flood mud was collected from Kelantan, Malaysia and crushed and sieved into powder form. Then, it was mixed with alkaline activator solution (mixture of NaOH and Na2SiO3 solutions) followed by curing process to produce flood mud geopolymers. In addition, the effect of varying solids/liquid (S/L) and Na2SiO3/NaOH ratios on the compressive strength of flood mud geopolymers were also investigated. The result showed that flood mud can be potentially used as precursor materials for geopolymer formation with favorable strength. Optimum compressive strength (24.6 MPa) of geopolymers based on flood mud was obtained at S/L = 1.25 and Na2SiO3/NaOH = 1.0.
The Effect of Different Reduction Methods on Conductivity of Reduced-Graphene Oxide (r-GO)
Authors: Ramli Muhammad Mahyiddin , Hanim K.N. , Muda M.R. , Mat Isa Siti Salwa , Jamlos M.F.
Published: December 2015

Large quantity of graphene oxide (GO) was prepared by Modified Hummer’s method, in which graphite was treated with a mixture of sulphuric acid, potassium permanganate and hydrogen peroxide. A chemically reduced graphene oxide (r-GO) was prepared using sodium borohydride (NaBH4), followed by thermal treatment and thermal treatment of chemically reduce using NaBH4. The electrical resistance of r-GO was measured using Keithley sourcemeter. The results revealed that r-GO show lower resistance on thermal reduction which is 2.39 kΩ compared to chemical reduction and thermal of NaBH4 reduction which is 2.18 MΩ and 3.16 kΩ respectively. It can be concluded that thermal reduction is the best method to produce high conductivity r-GO film.
Overview of Fuzzy Logic Technique for Modeling Machining Process
Authors: Mohamad Azizah , Zain Azlan Mohd , bin Mohd Yusof Noordin
Published: December 2015

This paper describes an overview of Fuzzy Logic (FL) application for solving machining problems. The developed fuzzy prediction model is an essential operational guideline for machinist in decision making and adjusting process parameters. This paper also discussed the previous literature that applied the FL in modeling machining process.
Effect of Incubation Temperature on Growth of Acetobacter xylinum 0416 and Bacterial Cellulose Production
Authors: Zahan Khairul Azly , Nordin Khairunnisa , Mustapha Mahfuzah , Mohd Zairi Mohd Naqiuddin
Published: December 2015

The objective of this research was to investigate the effect of incubation temperature towards the growth of Acetobacter xylinum 0416 and the production of bacterial cellulose. Fermentation of A.xylinum 0416 were carried out for 5 days in static condition using Hestrin & Schramm (HS) medium with initial glucose concentration of 4.0% (w/v) and initial pH of 6.4. The incubation temperature were varied at 5°C, 20°C, 25°C, 27°C, 28°C, 30°C, 35°C and 40°C respectively. Results indicated that 28°C served as the best incubation temperature for the growth of A.xylinum 0416 and produced the highest amount of bacterial cellulose with total dried weight of 0.3722 g/l. Meanwhile at incubation temperature of 5°C and 40°C, no significant growth of A.xylinum 0416 and bacterial cellulose were obtained. As a conclusion, incubation temperature plays an important role for the growth of A.xylinum 0416. The best incubation temperature is at 28°C in which the sufficient energy will be provided for bacterial growth thus enhancing the cellulose biosynthetic pathway in order to convert glucose into bacterial cellulose.
Mismatch Analysis of Elementary School Desk and Chair Using Monte Carlo Simulation
Authors: Rosyidi Cucuk Nur , Susmartini Susy , Pratama Singgih Ady , Purwaningrum Lu'lu' , Muraki Satoshi
Published: December 2015

In this paper, we analyze the mismatch between the desk and chair key characteristics and pupil’s anthropometric data. Samples were taken from public elementary schools in six regions (Surakarta, Sukoharjo, Sragen, Karanganyar, Boyolali, and Klaten) of Central Java Indonesia. Mismatch comparisons are made among existing desk and chair, Indonesia National Standard (SNI) dimensions, and the dimensions from pupil’s anthropometric data. Monte Carlo simulation method is used to find the smallest mismatch among the anthropometric percentiles data. From the analysis of simulation result using Crystal Ball software, seat width and under desk clearance have the lowest mismatch. The seat height and desk height from desk and chair dimensions from pupil’s anthropometric data have the lowest mismatch comparing to the existing and SNI desk and chair dimensions.
Digital All-Pass Filter Modeling Based on Desired Group Delay Using Advanced Material: A Review on the Signal Processing Part
Authors: Abu Bakar Faizah , Zainol Murad Sohiful Anuar , Ismail Rizalafande , Isa Muzamir
Published: December 2015

This paper presents a review on three types of techniques in designing digital all-pass filters based on group delay. All the three methods use the same basic concept rooting back to the requirement of a stable transfer function of the filter which should be a minimum-phase type, and the denominator group delay. The most optimized of the three is chosen to be implemented in MATLAB in order to decrease the group delay variation of a 5th order Chebyshev low-pass filter with cut-off frequency of 160 MHz. The digital transfer function of the low-pass filter is obtained from the analog transfer function by means of bilinear transformation. The sampling frequency of the digital LPF is 100 times the cut-off ffrequency to retain the response of the analog LPF. Both of the filters are then cascaded together and the overall group delays variations are analyzed. The variations of group delay shows a reduction but the price paid is the increase of the overall group delay of the system.
All-Optical XOR Logic Gates: Insights and Comparisons
Authors: Md Azidin Mohd Azarulsani , Wahid M.H.A. , Ahmad Hambali N.A.M. , Shahimin M.M. , Malek A. Zakiah
Published: December 2015

Three XOR photonics logic gate configurations namely semiconductor optical amplifier-Mach Zender interferometer cross phase modulation (SOA-MZI XPM), SOA-MZI cross gain modulation (XGM) and terahertz optical asymmetrical demultiplexer (TOAD) XOR are analysed and compared in terms of generated power, optical signal-to-noise ratio (OSNR) values and bit error rate (BER) signal quality. The highest generated power is possessed by the TOAD at 23.5 dBm, the SOA-MZI XPM showed the most extinction ratio or OSNR with 109.6 dB whereas the best BER is recorded in the SOA-MZI XGM at 4.42 x 10-22.
The Addition of Imperata cylindrica as Natural Filler in Epoxidized Natural Rubber Filled Recycled Nitrile Glove: Cure Characteristics and Physical Properties
Authors: Afiratul A.A. , Noriman N.Z. , Husin Kamarudin , Ting Sam Sung , Ismail Hanafi , Mustafa Al Bakri A.M. , OMAR MOHD FIRDAUS , Norhafizah Z.
Published: December 2015

The effects of imperatacylindrica on curing characteristics and physical properties of epoxidized natural rubbers (ENR25) filled recycled nitrile glove (rNBR) were examined. The compounds were prepared by two roll mill at five different compositions of imperatacylindrica (5, 15, 25, 35 and 45 phr). The size range of imperatacylindrica particles i.e., 0μm-63μm and 500μm-700μm were used. The result of cure characterization show that scorch time (t2) and cure time (t90) of the ENR25/rNBR decreased with the increased of imperatacylindrica content due to an insufficient amount of accelerator or curing agent and migration of sulphur from filler to the natural rubber. ENR25/rNBR with fine size, S1 of imperatacylindrica particles exhibit lower minimum torque (ML) compared with the coarse size, S2 which resulted in more efficient processing. The maximum torque (MH) of all ENR25/rNBR compounds show the increasing trend with increased imperatacylindrica content due to the good interactions between imperatacylindrica and ENR25/rNBR compounds. For physical properties, ENR25/rNBR compounds with fine size, S1 of imperatacylindrica particles exhibited the higher crosslinking density at all compound ratios meanwhile coarse size, S2 show highest hardness compared to fine size, S1. The results overall indicated that the ENR25/rNBR with fine size, S1 of imperatacylindrica particles show better cure characteristics and physical properties (crosslink density and hardness test) compared to coarse size, S2 of imperatacylindrica particles.
Appraisal of Mega Float - Floating Offshore Remote Terminal (FORT) on Catenary Mooring for Deep Water
Authors: Abdul Malik Asmawi , Ahmad Mohd Zamani , Radzi Azura Ahmad , Ahmad Fuad Ahmad Faizal , Azlan Nur Hanani Ahmad
Published: December 2015

With the development of offshore fishing and deep sea exploitation intensifies, floating offshore remote terminal (FORT) which having many advantages can better adapt to the complicated environment of deep sea in numerous offshore platform. Due to the hull likely to to resonance phenomenon, FORT has more intense motion compared to other hull form types. Therefore, the main challenge of FORT in the deep sea operation is to design effective mooring system. This paper introduced the dynamic response by utilizing the computational effort associated with time-domain simulation of single anchor leg mooring (SALM). The influenced or the effect of significant wave height (SWH) over the structure is discussed. It is shown that a comparison of different SWH value in terms of their stability properties is sufficient and adequate; relative merit is assessed through comparison of full systems that have been designed to minimum cost, and to common performance specifications. It is found that single point or catenary systems, can outperform both static and dynamic solutions at the preliminary stage. Moreover, the results indicated that the position ability and mooring strength of SALM system whose intermediate material is studless chain of catenary mooring system on the premise that satisfies API specification at the same time.
The Effects of Trans-Polyoctylene Rubber (TOR) on the Properties of Acrylonitrile Butadiene Rubber/Recycled Natural Latex Gloves (NBR/NRL-G) Compounds
Authors: Dahham Omar Sabbar , Noriman N.Z. , Husin Kamarudin , Ting Sam Sung , Omar M.F. , Al Bakri A.M. Mustafa , Rosniza H.
Published: December 2015

The using of Trans-Polyoctylene Rubber (TOR) as a compatibilizer with acrylonitrile butadiene rubber/recycled natural latex gloves (NBR/NRL-G) has been investigated. The compounds were prepared with different (TOR) loading (0, 2, 4,6 and 8 Phr) using two roll mills at room temperature. The properties such as cure characteristics, tensile properties, physical properties and morphology were studied. The compatibilized (NBR/NRL-G) compounds exhibited overall good cure characteristics, morphological and physical properties compared uncompatibilized (NBR/NRL-G) compound. The addition of the (TOR) up to 6 Phr was the optimum tensile strength.
Physical and Mechanical Behaviors of SnCu-Based Lead-Free Solder Alloys with an Addition of Aluminium
Authors: Adli Nisrin , Abdul Razak Nurul Razliana , Saud Norainiza
Published: December 2015

The effect of Al addition on the microstructure, melting point and microhardness of SnCu-Al lead-free solder alloys were investigated with two different compositions of Al which were 1 wt% and 5 wt%. These solder alloys were fabricated through powder metallurgy (PM) method. The results showed that the melting point and the microhardness value of the SnCu-Al lead-free solder alloy were increased as the Al content increased from 1 wt% to 5 wt%. The grain growth of SnCu-Al lead-free solder alloy also tends to be retarded due to the homogenous distribution of Al at the grain boundaries.
Kinematical Analysis of Valve Mechanism Using MSC Adams/View
Authors: Hroncová Darina , Sivák Peter , Delyová Ingrid
Published: December 2015

The main reason for the choice of this theme is the extension of use of valve mechanisms and the possibility of using the new simulation program MSC Adams. The aim of this paper is to become familiar with the problems of the valve mechanism, the dynamic analysis and computer simulation. In this paper we described an overview of the problems compiling a mathematical model of the mechanism of the valve timing. After creating a mathematical model was made in the simulation program MSC Adams/View. The equation of motion of a mechanical valve mechanism was compiled Lagrange equations second order. The actual solution procedure that is mentioned in this paper can be applied to solve complex problems and shape of the valve mechanisms.
Technological System for Weight Measurements in a Logistic Warehouse
Authors: Božek Pavol , Korshunov Aleksander , Kollár Pavol
Published: December 2015

Management of universal shelf stacker process many varied operations, whose are different in difficulty of solved problems, time of reaction of controller and next parameters. Usually is used one controller with all functions, which have many external input-output modules and have to solve parallel many tasks together. The control application have to be very complicated and blind with risk of collisions control processes and needed of solving control process priority. If the processes are separated to the groups, every group of processes solved with separate control automat. For simple processes, whose needs immediate reaction can be used simple and easy controller, complex control processes have to been solved with controller with sufficient performance, mathematical performance and adequate memory.
Positioning of Pneumatic Actuator Using Open-Loop System
Authors: Virgala Ivan , Kelemen Michal , Prada Erik , Lipták Tomáš
Published: December 2015

In the paper, we experimentally analyze a pneumatic actuator and possibilities of piston positioning. Paper shows mathematical model of pneumatic actuator. Actuator is experimentally tested and therefor experimental stand is assembled for the purposes of positioning of actuator piston. The changing parameters during the experiment are weight of load and pneumatic pressure. The results show how these parameters can have influence on precise positioning of pneumatic actuator. For experiment there is purposely used open loop control system. The aim of the study is not to show control method for positioning but to show influence of mentioned parameters.
Design of Modifications for Constructional Elements of Manipulator Arm Aimed at Measuring of Operational Torque
Authors: Pástor Miroslav , Trebuňa František , Šimčák František , Gabáni Ľubomír , Vargovčík Ladislav
Published: December 2015

There are often designed such constructional elements in the engineering practice that are specified for sensing of operational loading and for a precise setting of the individual components in the given technical device, for example components of a robot arm. Positioning of the robot arms is regulated by means of power output setting (or torque setting) of the driving parts (motors) predominately. Driving effect is transferred between the individual components by means of the connecting parts designed for transfer of force flow. There is described in this paper such design of modification for constructional element of the robot arm, which enables to perform measuring of torque in the joining parts of the robot arm during a current operation.
Automated Headstone Photo Engraving
Authors: Perdukova Daniela , Batmend Mišel , Fedor Pavol
Published: December 2015

Nowadays, machine engraving of photos into solid materials such as marble or granite is becoming very popular. Relatively cheap CNC machines are available. The problem is that high quality photos are essential to obtain good results. The first part of the paper describes a model of a CNC machine used for engraving and puts down the principles of image processing applied to poor quality photos in order to get the best results, as well as the fundamental image processing methods necessary for achieving satisfactory results when using an electromagnetic diamond percussion tool for engraving. The second part of the paper describes a very simple method of data coding and the algorithm of engraving tool movement for image engraving process by means of a control system based on ATmega16 microcontroller. The quality of the engraved images is comparable, or even better, than that of manually engraved images or images engraved by other competitive CNC machines.
Comparison of Different Estimation Algorithms Used in the Experimental Determination of Modal Parameters
Authors: Huňady Róbert , Hagara Martin , Pavelka Peter
Published: December 2015

The paper deals with the estimation of modal parameters and its main purpose is to compare differences in the values of natural frequencies and damping ratios, which were estimated using three different extraction methods: Rational Fraction Polynomial method, Complex Mode Indicator Function and Polyreference Time Domain Technique. These methods are well suited to the more general application to multi-FRF data, both of the SIMO and the MIMO types. The object of measurement was a freely suspended steel rod of circular cross section. The responses of the analyzed structure were measured by accelerometer and laser vibrometer. The results of these measurements are also discussed in the paper.
The Experimental and Numerical Analysis of Stress as a Tool for Optimizing the Selected Structural Components of an Injection Device
Authors: Sivák Peter , Ostertag Oskar
Published: December 2015

The improvement of the main monitored technical parameters of the production devices is connected with the optimization of the individual structural components and construction nodes of these devices. Mainly those critical structural nodes of the devices that have a significant impact on the quality of the products manufactured by this device and its service life are studied. This paper briefly presents the results of experimental and numerical analysis of stresses and strains of selected structural components of the injection device, such as the connecting and guiding columns and the adjustable push plate. The relevant analyses of stresses and strains have been connected with the performance of a series of experimental and computer simulations. The results of these simulations then became an important basis for further optimization of selected structural parts of the injection device.
The Measures for Reducing of Truck Bodybuilding Vibrations
Authors: Grega Robert , Homišin Jaroslav , Moravič Marek , Baran Peter , Medvecká-Beňová Silvia
Published: December 2015

This article is focused on finding the most appropriate solution for eliminating vibrations that pose harmful influences in mechanical systems. To find this solution, the kinetic equations were generated from dynamical model of truck bodybuilding. The block diagram for natural frequencies calculation was made up out of these equations. Two solutions were suggested – to place flexible shaft coupling between high pressure pump and Power Take off and to connect the pump and Power Take Off directly with shaft. It is important to note that vibrations emerging may be reduced more effectively by using of the former solution – flexible shaft coupling.
Production Segmentation Using Hierarchical Methods of Cluster Analysis
Authors: Halčinová Jana , Janeková Iveta , Ižaríková Gabriela
Published: December 2015

Article is directed to segmentation of production using hierarchical methods of cluster analysis. Analysis is performed in statistical software STATISTICA. The result of clustering process are segments of products and machinery in form of arranged machine-product matrix. These data may serve for changing the disposition of workplace toward to manufacturing cells.
Synchronous Control of Parallel Axes Equipment
Authors: Božek Pavol , Abramov Andrey , Abramov Ivan , Nikitin Yuri , Romanov Aleksander
Published: December 2015

The paper describes the problems and state of art in control system with parallel axes. Basic theoretical principles of synchronization control are considered, Modified master-slave synchronization method is described. Experimental unit is used to investigation of master-slave synchronous control method, simulation and experimental results are described.
Interspecies Interactions of Metal-Oxidizing Thermo-Acidophilic Archaea Acidianus and Sulfolobus
Authors: Zhang Rui Yong , Liu Jing , Neu Thomas R. , Li Qian , Bellenberg Sören , Sand Wolfgang , Vera Mario
Published: December 2015

Biofilm formation of microorganisms on relevant surfaces is of great importance for biomining and acid mine drainage (AMD). Thermo-acidophilic archaea like Acidianus, Sulfolobus and Metallosphaera are of special interest due to their ability to enhance leaching rates. Visualization and investigation of microbial attachment and biofilm formation of metal-oxidizing organisms up to now has been done mostly with mesophilic or moderately thermophilic bacteria. In this study, attachment and biofilms by the crenarchaeota Sulfolobus metallicus DSM 6482T and a new isolate Acidianus sp. DSM 29099 on sulfur or pyrite were analyzed. Confocal laser scanning microscopy (CLSM) combined with fluorescent dyes specific for nucleic acids or glycoconjugates were used to monitor biofilm formation on surfaces. The data indicate that cell attachment and the subsequently formed biofilm structures were species and substrate dependent. The investigation of binary biofilms on pyrite showed that both species were heterogeneously distributed on pyrite surfaces in the form of individual cells or microcolonies. In addition, physical contact between the two species was visible, as revealed by specific lectins able to distinguish single species.
Bio-Modification of Carbonaceous Matters in Gold Ore: Model Experiments Using Powdered Activated Charcoal and Cell-Free Extracts of Phanerochaete chrysosporium
Authors: Twum Konadu Kojo , Sasaki Keiko , Ofori-Sarpong Grace , Osseo-Asare Kwadwo , Kaneta Takashi
Published: December 2015

The detailed mechanism behind the bio-decomposition of carbonaceous matter in refractroy goold ore byPhanerocheate chrysosporiumto facilitate improved cyanidation of gold is as yet undersdtood. To gain a better understanding of this mechanism, the present work model experiments using powdery activated carbon (PAC) and cell-free extracts ofP.chrysosporiumto simulate and focus on the biotransformation of carbonaceous matters in refractory gold ores. The results of solid characterization using SEM and XRD indicated a more non-uniform surface and smaller crystal sizes for PAC treaded with cell-free extracts for 72 hours. The significant decomposition of aromatic compounds into aliphatic compounds were observed in13C-NMR and FTIR results for the high ratio of cell-free extract volume to mass of PAC. This results support the theory that one of the fundamental mechanisms behind the bio-decomposition process is aromatic bond cleavage by biomolecules produced byP.chrysosporium.
Initial Attachment and Biofilm Formation of a Novel Crenarchaeote on Mineral Sulfides
Authors: Zhang Rui Yong , Zhang Yu Tong , Neu Thomas R. , Li Qian , Bellenberg Sören , Sand Wolfgang , Vera Mario
Published: December 2015

This study focused on colonization and biofilm formation of a new crenarchaeoteAcidianussp. DSM 29099 on pyrite and chalcopyrite. Confocal laser scanning microscopy (CLSM) in combination with several fluorescent stains was applied to examine spatial distribution of cells and biofilms, as well as extracellular polymeric substances (EPS) production on the substrates. Around 60% and 35% of the inoculum adhered to pyrite and chalcopyrite within 2 h, respectively. Cells ofAcidianussp. DSM 29099 were heterogeneously distributed on both pyrite and chalcopyrite surfaces, while large mineral surfaces remained uncolonized. Biofilm cells on pyrite were often found to be embeded in EPS. EPS residues like mannose and glucose were possibly involved in intial attachment to pyrite. A mature biofilm on pyrite was developed after 2-4 days of incubation.
Biofilm Formation of Sulfobacillus thermosulfidooxidans on Pyrite in the Presence of Leptospirillum ferriphilum
Authors: Li Qian , Zhang Rui Yong , Krok Beate A. , Vera Mario , Sand Wolfgang
Published: December 2015

In this study, initial attachment to and biofilm formation of Sulfobacillusthermosulfidooxidans DSM 9293T on pyrite in the presence of Leptospirillumferriphilum DSM 14647T were investigated. Interactions of S.thermosulfidooxidansT and L.ferriphilumT were studied by means of monitoring attachment behavior and biofilm formation on pyrite. Our preliminary results showed that 1): Pre-established biofilms of L.ferriphilumT had effects on attachment of S. thermosulfidooxidansT to pyrite; 2): physical contact between cells of L. ferriphilumT and S. thermosulfidooxidansT on pyrite were visible 3): Pyrite leaching by cells of S. thermosulfidooxidansT was inhibited by the presence of inactive cells of L.ferriphilumT.
Comparative Genomics Underlines the Functional and Taxonomic Diversity of Novel “Ferrovum” Related Iron Oxidizing Bacteria
Authors: Ullrich Sophie R. , Poehlein Anja , Daniel Rolf , Tischler Judith S. , Vogel Sarah , Schlömann Michael , Mühling Martin
Published: December 2015

Although acidophilic iron oxidizing bacteria related to “Ferrovum myxofaciens” P3G have been detected in various mining sites the knowledge about their physiology is limited to the type strain “F. myxofaciens” P3G. In order to further the knowledge on the metabolic capacity of “Ferrovum” related iron oxidizers we conducted a comparative genome analysis of three “Ferrovum” strains: JA12, PN-J185 and Z-31 (Z-31). The results of the phylogenetic analysis and the genome-to-genome distance calculation indicate that Z-31 belongs to a different “Ferrovum” species than JA12 and PN-J185. Comparative genome analyses revealed variations regarding the carbon, nitrogen and energy metabolism of the three strains which also corroborate the results concerning their phylogenetic relationship.
Saline Water Bioleaching with Thermophilic Fe(II) Oxidising Microorganisms
Authors: Corbett Melissa K. , Collinson David , Shiers Denis , Kaksonen Anna H. , Watling Helen , Watkin Elizabeth L.J.
Published: December 2015

The chloride tolerance of three Fe (II)- and sulfur-oxidising thermophiles and the effect of chloride on metals extraction from mineral sulfides were studied. Initially, 10-day bioleaching tests (60 °C) were conducted using pyrite (FeS2), chalcopyrite (CuFeS2) or pentlandite ((Ni,Fe)9S8) concentrates as substrate in basal salts medium (BSM), and the activities of Sulfolobus (S.) metallicus, Acidianus (A.) brierleyi and Metallosphaera (M.) hakonensis were compared. Fe (II) oxidation, as indicated by an increase in oxidation reduction potential (ORP), was observed in all combinations except A. brierleyi growing on chalcopyrite. The presence of added NaCl resulted in lower ORP after 10 days of bioleaching in all cases. In ancillary tests using BSM-Fe (II) growth medium with added NaCl it was found that cell counts at the end of Fe (II) biooxidation provided the most reliable estimate of tolerance to NaCl. On this basis, the rank order of salt tolerance is S. metallicus >>>A. brierleyi > M. hakonensis.
Oxygen-Enriched Gas in Bioleaching Stirred Reactors and its Impact on the Consortium Behaviour
Authors: Joulian Catherine , Jacob Jérôme , Beaulieu Mickaël , d’Hugues Patrick , Guézennec Anne Gwénaëlle
Published: December 2015

In bioleaching processes, gas transfer is often considered as one of the key mechanisms that will influence the leaching efficiency and more precisely the leaching rate. Oxygen can be a limiting factor in bacterial leaching because of its low solubility. One way to overcome this phenomenon consists in increasing the oxygen partial pressure in the gas stream supplied to the leach pulp. The primary objective of this work was to investigate the use of oxygen-enriched gas in bioleaching stirred reactors and its impact on the consortium dynamics. First tests were performed at lab scale in four successive series of 2-L bioreactors alimented either with air or with oxygen enriched gas. The microbial consortium used has proven its efficiency on several ores such as cobaltiferous pyrite and polymetallic ores in former research projects (BioMine, BioShale, ProMine). The community diversity was remarkably reproducible irrespective of the type of gas supply, in each of the successive series of reactors. Only minor changes occurred after subculturing from one batch series to the next one, highlighting the high stability of the established consortium. Different oxygen partial pressures (from 20% to 50%) were then tested in a 20-L continuous reactors pilot experiment. There was no impact on the community diversity, showing the high tolerance to oxygen of the bioleaching strains and their capacity to easily survive 50% oxygen input. The bioleaching efficiency in terms of rate and metal leaching did not seem to be changed. The use of enriched oxygen gas is not detrimental to the bioleaching strains and may be used in order to improve process operation (gas transfer, heat management...).