bluuebunny/crossref_metadata_2025 huggingface dataset:
Power calculation accuracy as a function of wind data resolution
Authors: De Klerk Martinus Gerhardus
Published: September 2017

Wind power calculations are usually based on average wind data taken over one-hour intervals. The effect of the wind data resolution on the statistical techniques used to calculate the probable power output (PPO) is commonly overlooked. This effect is analysed in this paper by iteratively calculating and comparing the PPO of a wind turbine using data, averaged over different periods, obtained from Wind Association of South Africa. The power is calculated using both Weibull representation and direct polynomial substitution techniques in order to compare and verify the results. The results indicate a fairly linear relationship between the resolution used and the PPO error incurred. These results raise an interest to examine the effects of a fine resolution on the data in terms of data dependence, which may violate the criteria for the majority of statistical tests and procedures.
Legislation governing the implementation of small-scale hydropower projects for rural electrification in South Africa
Authors: Scharfetter Beate , Van Dijk Marco
Published: September 2017

The Department of Energy’s ‘new household electrification strategy’ allows for any appropriate and affordable technology option to be applied towards achieving South Africa’s non-grid electrification target of 300 000 households over the period 2014 to 2025. This paper describes the main legislative and regulatory framework governing the implementation of small-scale hydropower (SHP) projects in South Africa with the aim of attaining the objectives of the non-grid electrification component of the ‘new household electrification strategy’, and indicates that it is possible to implement such projects within South Africa’s complex institutional architecture. The inclusion of run-of-river type small-scale hydropower projects for rural electrification in the 2016 updated General Authorisation eased the process of attaining regulatory compliance in terms the National Water Act. This implies that these types of SHP projects would only need to follow a registration process to obtain the required water use authorisation, and not a full water use licence application process.
Permutation Analysis: Two and three year old children use an incremental first-NP-as-agent bias to process transitive sentencee v2
Authors: Abbot-Smith Kirsten , Chang Franklin , Rowland Caroline , Ferguson Heather , Pine Julian
Published: September 2017

Permutation analysis for eyetracking study
Exponentially Correlated Gaussians for Simulating Of Localized and Autolocalized States in Polar Media
Authors: Каширина Н.И. , Kashirina N.I.
Published: September 2017

Localized and autolocalized states and their simplest two-electron complexes in polar media are considered in the continuum approximation.
The electron-phonon interaction is taken into account in the Pekar-Fröhlich approximation. The exponentially correlated Gaussian basis
is used for the calculation of the energy spectrum of two-electron systems in phonon field. Analytical expressions for effective functionals
of paramagnetic centers and their simplest two-electron complexes are presented. Numerical examples are given for the calculations of
the energy spectrum of localized and self-localized states in metal-ammonia solutions.
Modelle und Dienste für das Betriebsmanagement
Authors: Wollschlaeger Martin , Bieliaiev Oleksandr , Bangemann Thomas , Weinmann Max
Published: September 2017

Die Aufgaben von Manufacturing Execution Systems werden in Industrie 4.0 weiter wachsen, hin zum übergreifenden Betriebsmanagement. Ein solches Manufacturing Operations Management ist ein wesentlicher Bestandteil eines Industrie-4.0-basierten Produktionssystems. Die für heutige MES definierten Funktionen und Interaktionsmechanismen müssen daher für Industrie 4.0 durch Definition von entsprechenden Teilmodellen und Diensten aufbereitet und in interoperabler Form bereitgestellt werden. Der Beitrag motiviert und diskutiert eine solche Ableitung von Industrie-4.0-konformen Teilmodellen und Diensten auf Basis der IEC/EN 62264.
Semantische Inhalte für Industrie 4.0
Authors: Fay Alexander , Scholz André , Hildebrandt Constantin , Schröder Tizian , Diedrich Christian , Dubovy Martin , Wiegand Ralf , Eck Christian , Heidel Roland
Published: September 2017

Kooperation und Kollaboration technischer Systeme sind in Anwendungsszenarien eines der wesentlichen Ziele der Initiative Industrie 4.0. Hierzu ist es notwendig, eine semantische Basis für den Informationsaustausch zwischen den technischen Systemen zu definieren. Der Beitrag stellt ein Konzept zu deren Modellierung vor, das auf der Nutzung einer modellübergreifenden und alle Lebenszyklusphasen umspannenden Semantik basiert. Für die technischen Systeme wird ein Systemmodell definiert, das die notwendige Information abbildet und mit Hilfe von AutomationML neutral austauschbar macht. Als wichtiges Modellierungselement werden die Eigenschaften mit Referenzen auf ihre Typbeschreibungen versehen. Aus dem Beitrag wird ersichtlich, wie die Anwendungsszenarien von Industrie 4.0 mit dem Konzept der Industrie-4.0-Komponente und deren Verwaltungsschale zusammenwirken.
String Matching Techniques: An Empirical Assessment Based on Statistics Austria's Business Register
Authors: Denk Michaela , Hackl Peter , Rainer Norbert
Published: September 2017

The maintenance and updating of Statistics Austria's business register requires a regularly matching of the register against other data sources; one of them is the register of tax units of the Austrian Federal Ministry of Finance. The matching process is based on string comparison via bigrams of enterprise names and addresses, and a quality class approach assigning pairs of register units into classes of different compliance (i.e., matching quality) based on bigram similarity values and the comparison of other matching variables, like the NACE code or the year of foundation.Based on methodological research concerning matching techniques carried out in the DIECOFIS project, an empirical comparison of the bigram method and other string matching techniques was conducted: the edit distance, the Jaro algorithm and the Jaro-Winkler algorithm, the longest common subsequence and the maximal match were selected as appropriate alternatives and evaluated in the study.This paper briey introduces Statistics Austria's business register and the corresponding maintenance process and reports on the results of the empirical study.
Analysis and Prediction of Particulate Matter PM10 for theWinter Season in Graz
Authors: Hörmann Siegfried , Pfeiler Brigitte , Stadlober Ernst
Published: September 2017

We summarize the investigations and results of recent empirical analysis on particulate matter PM10 in Graz. The influence of meteorological as well as anthropogenic factors is presented and discussed. Moreover we introduce a prediction model using current information and meteorological forecasts to predict the average concentration of particulate matter PM10 for the next day. Finally, we report on experiences with a test run carried out from December 16, 2004 until April 15, 2005.
Antibacterial Activity of Melanin from Cuttlefish and Squid Ink
Authors: Fitrial Yuspihana , Khotimah Iin Khusnul
Published: September 2017

Marine environment comprises of many organism which are known to posses bioactive compound as a common means of self-defense or for the protection of eggs and embryos. Class Cephalopods (such as squid
and cuttlefish) are notable for their defences, such as jetting escape movements, changes in colouration, toxic venom and inking.This study aims to compare the antibacterial activity of melanin from cuttlefish ink (Sepia sp.) with squid ink (Loligo sp.) against E. coli. Extraction and purification studies were carried out on Sepia and Loligo melanin using a hydrochloric acid 0,5M treatment under mechanical.The melanins were obtained and further evaluated their activity by direct contact methods between melanin and E. coli in nutrient broth.Total microbes was counted by total plate count.Both inks also was tested their activity against E. coli. The results showed that melanin from cuttlefish and squid inks had inhibitory activity at concentrations of 10 mg / ml and 20 mg / mL, respectively reaching 99.99% against E. coli.The inks of both Cephalopods at the same concentration as melanin, did not show any inhibitory activity against E. coli.  The melanin of Sepia sp. have a higher antibacterial activity than the melanin of Loligo sp.
THERMAL STABILITY OF SYNTHETIC PEPTIDES MIMICKING THE SEQUENCE OF THE REGION CONTAINING THE SKIP RESIDUES IN SQUID MYOSIN ROD
Authors: Ochiai Yoshihiro , Nurilmala Mala , Wang GuoFeng , Watabed Shugo
Published: September 2017

Myosin is the major protein in skeletal muscles including those of fish and shellfish. The characteristics of this protein are closely related to the biological function and the quality and physical properties of muscle
food. In the myosin rod (the coiled-coil region of myosin), several amino acid residues, known as skip residues, seem to destabilize the ordered structure (heptad repeat). These residues might be responsible for reducing thermal stability. Attempts were thus made to examine the role of these residues in the rod of squid myosin, based on the thermodynamic properties of synthetic peptides which have been designed to mimic the partial sequence of myosin heavy chain from the squid Todarodes pacificus mantle muscle. Five peptides, namely, with the sequence of Trp1343 -Ala1372  having the skip residue Glu1357 at the center (Peptide WT), without the skip residue (Peptide Δ), with the replacements of the skip residue (Glu) by Ile, Gln and Pro (Peptides E/I, E/Q, and E/P, respectively) to modify the helix forming propensity, were synthesized. The results obtained showed that the stability of the peptides as measured by circular dichroism spectrometry was in the order of Peptide Δ > Peptide WT > Peptide E/Q > Peptide E/P > Peptide E/I. It is suggested that the presence of the skip residues dexterously tunes the stability or flexibility of the coiled-coil structure, thus possibly regulating thick filament formation and further gel formation ability of myosin.
Double long-wavelength speckle interferometer for gas-turbine engine parts vibration research
Authors: Zhuzhukin Anatoly
Published: September 2017

To investigate gas-turbine engine parts vibration speckle interferometer has been developed, an optical scheme of which includes two sources of laser radiation with different wave length. This has made it possible to increase vibration measurement accuracy due to experimental points number increase. A diagram of the 7-th stage compressor blade inlet edge vibratory displacements has been plotted according to the second flexural mode using speckle interferograms obtained at different length of the applied laser radiation.
What Happened After the 2012 Shift in Canadian Copyright Law? An Updated Survey on How Copyright is Managed across Canadian Universities
Authors: Graham Rumi , Winter Christina
Published: September 2017

Abstract

Objective – The purpose of this study is to understand the practices and approaches followed by Canadian universities in copyright education, permissions clearance, and policy development in light of major changes to Canadian copyright law that occurred in mid-2012. The study also seeks to identify aspects of copyright management perceived by the universities to be challenging.

Methods – In 2015, an invitation to complete an online survey on institutional copyright practices was sent to the senior administrator at member libraries of Canada’s four regional academic library consortia. The invitation requested completion of the survey by the person best suited to respond on behalf of the institution. Study methods were largely adapted from those used in a 2008 survey conducted by another researcher who targeted members of same library consortia.

Results – While the university library maintained its leadership role in copyright matters across the institution, the majority of responding institutions had delegated responsibility for copyright to a position or office explicitly labeled copyright. In contrast, respondents to the 2008 survey most often held the position of senior library administrator. Blanket licensing was an accepted approach to managing copyright across Canadian universities in 2008, but by 2015 it had become a live issue, with roughly half of the respondents indicating their institutions had terminated or were planning to terminate their blanket license.

Conclusion – In just seven years we have witnessed a significant increase in specialized attention paid to copyright on Canadian university campuses and in the breadth of resources dedicated to helping the university community understand, comply with, and exercise various provisions under Canadian copyright law, which include rights for creators and users.
Call for Expressions of Interest to host EBLIP10
Authors: . .
Published: September 2017

No abstract.
Educação Permanente em Saúde como estratégia balizadora do processo de formação em saúde: a experiência da Residência Multiprofissional em Saúde da Família e Comunidade da UESPI
Authors: Ferreira Mesquita de Oliveira Jordânia , Sales Lima Leonardo , Gomes Matias Cronemberger Izabel Herika , Coêlho da Silva Sâmia Luiza , De holanda Vieira Nayara
Published: September 2017

A Educação Permanente em Saúde (EPS), estratégia de aprendizagem problematizadora do processo de trabalho em saúde, apresenta-se como importante elemento de reorientação da formação dos profissionais. Nesta pesquisa o objetivo foi analisar as concepções e práticas de EPS que permeiam o processo de ensino-aprendizagem do programa de Residência Multiprofissional em Saúde da Família e Comunidade da Universidade Estadual do Piauí (RMSFC-UESPI). Utilizou-se como técnica a entrevista semiestruturada realizada com dez residentes de diferentes categorias profissionais, selecionados de forma intencional. Os resultados apontam duas categorias: o conceito de EPS e o sistema aprendente do programa, onde se identificou que o processo de formação em saúde ora se apresenta como crítico e indutor de novas formas de fazer saúde, ora conserva as práticas de um modelo verticalizado de ensino-aprendizagem.
Models of Mind That Are Implied by Cognitive Science
Authors: Sedlacek Miroslav
Published: September 2017

Three models of mind were proposed during the history of cognitive science: functionalist, psychological, and neural model. The functionalist model of mind is based on symbol manipulation (computation). This model has two versions: the conception of mind as an innate information processor and problem solver, and mind as innate cognitive and visual system. A psychological model of mind is the extension by “common sense”. The alternative is mind as a cognitive and visual system that is based mostly on manipulation of internal mental data. The neural model is the only model of embodied mind. It has two versions: non-pragmatic and pragmatic (autopoietic, distributed, and social mind).
Seed priming improves irrigation water use efficiency, yield and yield components of summer cowpea under limited water conditions
Authors: Arun M. N. , Hebbar S. Shankara , Bhanuprakas K. , Senthivel T.
Published: September 2017

A split plot design field study was conducted during summer month of 2012 and 2013 at the vegetable block of Indian Institute of Horticultural Research in Bangalore, India to evaluate if priming could improve grain yield and water use efficiency of cowpea under limited water supply condition through drip system. Seeds of cultivar Arka garima received the following priming treatments: they were soaked in GA3,Calcium Chloride, Ammonium Molybdate, Potassium Bromide, Magnesium Nitrate, Zinc Sulphate solutions, and aerated distil water (hydropriming) for 24 hours at 15o C. Crops were subjected to three irrigation intervals in which the irrigation was applied at 0.9, 0.7, 0.5 Epan Replenishment of evaporation. Seed priming treatments reduced the mean emergence time, promoted germination, early canopy development and flower initiation in comparison to the untreated control. Plant height, number of branches, total dry matter accumulation, number of pods per plant, number of seeds per pod, 1000 seed weight and grain and biological yield, harvest index and irrigation water use efficiency increased by different priming treatments. Seed priming increased the irrigation water use efficiency (IWUE) of all irrigation regimes. Grain yields linearly increased at 0.9 Epan Replenishment while maximum IWUE was achieved at 0.5 Epan Replenishment. Results suggest that the use of seed priming with either GA3 (100ppm) or Ammonium Molybdate (10-3 M) for 24 hours at low concentration can be helpful in cowpea under both optimum as well as limited water conditions.
Survey, collection and seed morphometric characterization of French bean (Phaseolus vulgaris L.) landraces of Himachal Pradesh
Authors: Kanwar Rajesh , Mehta D. K.
Published: September 2017

The study was conducted to survey and collect various French bean genotypes from the main hot spot regions of Himachal Pradesh like Shimla, Chamba, Sirmour, Kullu, Kinnaur and some areas of Mandi and Solan district. Different bean genotypes were collected in a 15-day exploration trip from various geographical regions. The collected seed samples were evaluated and characterized for intra-specific seed morpho-metric characteristics like seed coat colour, hilum colour, seed shape, hypocotyls pigmentation, cotyledon colour pubescence on hypocotyls, 100 seed weight (g), seed length (mm) and seed width (mm). The evaluated genetic material was then deposited in the short term seed bank of Department of Seed Science and Technology UHF Nauni for future correspondence. The genetic diversity found among the landraces is of great importance in the utilization of the species for food and nutrition and more importantly for genetic improvement. The study would prove a basic primary step in germplasm recognisition activity for future breeding programmes and will project the local available genetic footprints to entire agro associated enterprises for necessary consideration.
POVEZANOST KREATIVNE PRODUKCIJE I EMOCIONALNOG DOŽIVLJAJA: POSTAJEMO LI KREATIVNIJI POSMATRAJUĆI NOVE NEPRIJATNE SLIKE?
Authors: Ristić Irena , Milošević Miloš
Published: September 2017

U istraživanju se ispituje stepen i vrsta povezanosti između kreativnosti odgovora, različitih dimenzija emocionalnog doživljaja (valence i pobuđenosti), bliskosti sadržaja i vremena reakcije. Eksperiment je izveden uz učešće 38 studenata Fakulteta dramskih umetnosti iz Beograda, a za vizuelnu stimulaciju korišćena je IAPS baza (International Affective Picture System) iz koje je izabrano deset fotografija tako da je vrednost valence i pobuđenosti sistematski varirana. Ispitanicima su najpre izlagane izabrane fotografije i od njih je traženo da ocene koliko im je blizak njihov sadržaj. Nakon toga je preklapanjem deset izabranih fotografija napravljeno 25 superponiranih vizuelnih stimulusa koji su izlagani u drugoj sesiji kada je od ispitanika traženo da smisle najbolji naslov za svaki od njih, uz merenje vremena reakcije. Mera kreativnosti odgovora dobijena je izračunavanjem koeficijenta kreativnosti koji je namenski konstruisan za potrebe istraživanja. Rezultati regresione analize su pokazali da su valenca i vreme reakcije statistički značajni i vrlo dobri prediktori kreativnosti odgovora. Veza valence i kreativnosti je negativna, a vremena i kreativnosti je pozitivna. Analizom glavnih komponenti koja je uključivala pet varijabli (valencu, pobuđenost, bliskost sadržaja, kreativnost odgovora i vreme reakcije) dobijena su tri faktora, koji objašnjavaju ukupno 94.51% varijanse, od toga je dva visoko zasićena kreativnošću. Rezultati proširuju uvide o odnosu emocionalnog doživljaja i kreativne produkcije sugerišuću da se varijablama valence i vremena može objasniti njihova povezanost kao i da one leže u osnovi dva procesa koji čine kreativno mišljenje.
PSIHOMETRIJSKA EVALUACIJA SRPSKE ADAPTACIJE INDEKSA SENZITIVNOSTI NA SIMPTOME ANKSIOZNOSTI (ASI-3)
Authors: Volarov Marija , Oljača Milan , Mihić Ljiljana , Čolović Petar
Published: September 2017

Osnovni cilj ovog rada je provera validnosti i psihometrijskih karakteristika Indeksa senzitivnosti na simptome anksioznosti (ASI-3), na srpskom uzorku ispitanika iz opšte populacije. Uzorak je činilo 553 ispitanika starosti 18 do 60 godina, pri čemu je bilo više ispitanika ženskog pola (82.1%). Rezultati konfirmativne faktorske analize (CFA) ukazuju da bifaktorski model, sa jednim generalnim faktorom opšte senzitivnosti na simptome anksioznosti i tri specifična faktora – zabrinutost za fizičko funkcionisanje, zabrinutost za kognitivno funkcionisanje i zabrinutost u socijalnim situacijama, ima najbolji fit. Rezultati analiza baziranih na teoriji odgovora na stavke (IRT: 2PL model) ukazuju na to da je ASI-3 relativno težak, odnosno da je prilagođen ispitanicima sa prosečnim i natprosečnim nivoom latentne osobine. Na osnovu rezultata baziranih na korelaciono-regresionim analizama donet je zaključak o dobroj konvergentnoj, divergentnoj i inkrementalnoj validnosti upitnika ASI-3. IRT analizama je identifikovana grupa od pet problematičnih stavki (niski parametri informativnosti i diskriminativnosti kao i visoki parametri težine) i razmotrena je njihova potencijalna primena u kliničkoj praksi. Konačno, generalni faktor opšte senzitivnosti na simptome anksioznosti, a u manjoj meri i specifični faktori imaju potencijal u objašnjavanju dodatne varijanse spoljnih kriterijuma povrh koncepta anksioznosti iz domena revidirane teorije osetljivosti na potkrepljenje, što ukazuje na inkrementalnu validnosti upitnika ASI-3. Ponuđene su kliničke i istraživačke implikacije.
Cidade documento: as cidades como fontes para a escrita da história
Authors: Silva Rodrigo da
Published: September 2017

Este trabalho procura fomentar a discussão a respeito do emprego das cidades e suas representações como documentos para o estudo da história. Recorrentemente as cidades e suas representações são enclausuradas no universo da história urbana ou de uma suposta história das cidades. Tal procedimento desconsidera a importância e a riqueza que as próprias cidades representam para o estudo da história, em suas mais diversas vertentes, temáticas e recortes. Também não se pode circunscrever o emprego das cidades como documento às discussões da cultura material: a materialidade é de fundamental importância, ainda que recorrentemente escanteada nas pesquisas históricas; entretanto, o emprego das cidades como documento, por serem elas objetos de gigantesca complexidade, implica uma abordagem que transite entre distintos suportes, temporalidades, grupos sociais, culturas. É justamente nessa amplitude – e nos desafios metodológicos implicados – que reside a riqueza do emprego da cidade documento.
A disputa pela arte abstrata no Brasil: revisitando o acervo inicial do Museu de Arte Moderna de São Paulo, 1946-1952
Authors: Magalhães Ana Gonçalves
Published: September 2017

Pretende-se analisar aqui as contradições que emergem das duas campanhas de aquisição de obras (respectivamente em 1946-1947 e 1952-1954) que o primeiro presidente e patrono do Museu de Arte Moderna de São Paulo (MAM), Francisco Matarazzo Sobrinho, realizou na Itália. Nossa intenção é propor uma releitura do debate sobre a arte abstrata no contexto brasileiro em torno da criação do MAM e da Bienal de São Paulo, bem como reavaliar as ligações do ambiente artístico paulista com o meio artístico italiano, na busca de novos caminhos em direção à abstração. Esse estudo tem por objetivo revisar a narrativa de arte moderna no Brasil, tal como foi consolidada pela historiografia brasileira.
Narradores de Javé: memórias e identidades polifônicas no cinema nacional
Authors: Ribeiro Júnior Antônio Carlos Araújo , Feitosa Márcia Manir Miguel
Published: September 2017

Baseado nos debates acerca da memória em Maurice Halbwachs e Michael Pollak, esse artigo tem como objetivo central discutir o processo de construção da memória coletiva. Para tanto, será feita a análise do longa-metragem brasileiro Narradores de Javé, produzido em 2003. Ademais, considerando que a questão da identidade é não apenas outro aspecto visível na produção, mas também um fator que interage com a memória de determinado grupo social, caberá uma breve reflexão sobre o conceito. Em relação às memórias e identidades que emergem no filme, entende-se, de antemão, que estes conceitos compõem uma verdadeira polifonia discursiva, em que várias vozes interdependentes podem vir a se harmonizar ou se desarmonizar, criando um dialogismo em torno de uma mesma temática.
Otto Stupakoff e a gênese da fotografia de moda no Brasil
Authors: Spineli Patricia Kiss , Pinto Fernanda Iarossi
Published: September 2017

O presente artigo discute a fotografia de moda no Brasil partindo do depoimento de Otto Stupakoff, que afirma ser de sua autoria a primeira imagem fotográfica de moda realizada no país. Para a construção da reflexão aqui apresentada foram resgatadas três imagens de Stupakoff contidas no acervo do Instituto Moreira Salles (RJ), além de depoimentos do fotógrafo e de terceiros. Também foi investigada a veiculação da fotografia de moda no Brasil via revistas especializadas e traçada uma discussão sobre os aspectos da fotografia de moda como gênero fotográfico. Justifica-se o uso dos depoimentos de Stupakoff sobre a sua contribuição inicial para a fotografia de moda brasileira à luz da história oral, que auxilia na reconstrução de cenário pretéritos e trajetórias individuais. Ainda, as três imagens de Stupakoff foram analisadas levando-se em conta seus aspectos formais e o contexto histórico.
A fractional calculus approach to Rosenzweig-MacArthur predator-prey model and its solution
Authors: Mondal Shuvojit , Bairagi Nandadulal , Lahiri Abhijit
Published: September 2017

In this paper we present analytical solution of a fractional order predator-prey model, where prey grows logistically and predation occurs following type II response function, by homotopy perturbation method. Numerical solutions are presented to illustrate different particular cases. Our computational results show that accurate solution may be obtained with few iterations.
Total potential energy minimization method in structural analysis considering material nonlinearity
Authors: Temür Rasim , Bekdaş Gebrail , Toklu Yusuf Cengiz
Published: September 2017

Minimum potential energy principle is the basis of the most of the well-known traditional techniques used in the structural analysis. This principle determines the equilibrium conditions of systems with reference to minimization of the sum of the total potential energy of the structure. In traditional applications, this methodology is formulized by using matrix operations. A methodology has been proposed in the last decades for structural analyses based on the idea of using metaheuristic algorithms to obtain minimum potential energy of the structural system instead of following this classical approach. This new method, called “Total Potential Optimization using Metaheuristic Algorithms (TPO/MA)”, has been applied in this paper to truss structures considering linear and nonlinear behavior of the structural material. The metaheuristic method used in this process is teaching-learning based optimization (TLBO) algorithm. The proposed technique is applied on numerical examples and results are compared with other techniques in order to test the efficiency of the proposed method. According to results obtained, TPO/MA method with TLBO algorithm is a feasible technique for the investigated problem.
The influence of elevated temperatures on the mechanical properties of polypropylene fiber reinforced concrete
Authors: Atashafrazeh Majid , Bingöl Ahmet Ferhat , Caf Murat
Published: September 2017

This paper describes the strength of Polypropylene Fiber Reinforced Concrete (PFRC) exposed to the elevated temperatures. In the study, control specimens without any fibers and the concrete specimens with the ratios of 0.30, 0.60, 0.90 and 1.20 kg/m³ polypropylene fibers both in woolen and bar shape fiber have been produced. The specimens have been kept in the laboratory conditions for 28 days. Shortly after the curing period was completed, every group was heated at 23, 150, 300, 450, 600 and 750°C for two hours then the compressive strengths of them were determined. The maximum compressive strength was obtained by the specimens including 0.30 kg/m³ woolen polypropylene. For this group, the compressive strength increase was 8% according to the control specimens. The compressive strengths of bar polypropylene fiber concrete were higher than the wool fibers under elevated temperatures. On the other hand, more compressive strength values are obtained from the control specimens than fiber groups at 600°C temperature. Melting the polypropylene fiber at 500°C formed some pore spaces in concrete and caused reduction of the compressive strength.
Introduction to Reconfiguration
Authors: Nishimura Naomi
Published: September 2017

Reconfiguration is concerned with relationships among solutions to a problem instance, where the reconfiguration of one solution to another is a sequence of steps such that each step produces an intermediate feasible solution. The solution space can be represented as a reconfiguration graph, where two vertices representing solutions are adjacent if one can be formed from the other in a single step. Work in the area encompasses both structural questions (Is the reconfiguration graph connected?) and algorithmic ones (How can one find the shortest sequence of steps between two solutions?) This survey discusses techniques, results, and future directions in the area.
Solvent Free Synthesis and Safener Activity of Sulfonylurea Benzothiazolines
Authors: Fu Ying , Wang Jing-Yi , Zhang Dong , Chen Yu-Feng , Gao Shuang , Zhao Li-Xia , Ye Fei
Published: September 2017

A series of novel sulfonylurea benzothiazoline were designed by splicing active groups and bioisosterism. A solvent-free synthetic route was developed for the sulfonylurea benzothiazoline derivatives via the cyclization and carbamylation. All the compounds were characterized by IR, 1H-NMR, 13C-NMR, HRMS. The biological activity tests indicated the compounds could protect maize against the injury caused by chlorsulfuron to some extent. The molecular docking result showed that the new compound competed with chlorosulfuron to bind with the herbicide target enzyme active site to attain detoxification.
GIS and Remote Sensing Applications in Wetland Mapping and Monitoring
Authors: Wu Qiusheng
Published: September 2017

Wetlands are recognized as one of the world’s most valuable natural resources. With the increasing world population, human demands on wetland resources for agricultural expansion and urban development continue to increase. In addition, global climate change has pronounced impacts on wetland ecosystems through alterations in hydrological regimes. To better manage and conserve wetland resources, we need to know the distribution and extent of wetlands and monitor their dynamic changes. Wetland maps and inventories can provide crucial information for wetland conservation, restoration, and management. Geographic Information System (GIS) and remote sensing technologies have proven to be useful for mapping and monitoring wetland resources. Recent advances in geospatial technologies have greatly increased the availability of remotely sensed imagery with better and finer spatial, temporal, and spectral resolution. This chapter presents an introduction to the uses of GIS and remote sensing technologies for wetland mapping and monitoring. A case study is presented to demonstrate the use of high-resolution light detection and ranging (LiDAR) data and aerial photographs for mapping prairie potholes and surface hydrologic flow pathways.  
The Effect of Heat Transfer and Polymer Concentration on Non-Newtonian Fluid from Pore-Scale Simulation of Rock X-Ray micro-CT
Authors: Tembely Moussa , AlSumaiti Ali M. , Jouini Mohamed S. , Rahimov Khurshed
Published: September 2017

Most of the pore-scale imaging and simulations of non-Newtonian fluid are based on the simplifying geometry of network modeling and overlook the fluid rheology and heat transfer. In the present paper, we developed a non-isothermal and non-Newtonian numerical model of the flow properties at pore-scale by direct simulation of the 3D micro-CT images using a Finite Volume Method (FVM). The numerical model is based on the resolution of the momentum and energy conservation equations. Owing to an adaptive meshing technique and appropriate boundary conditions, rock permeability and mobility are accurately computed. A temperature and concentration-dependent power-law viscosity model in line with the experimental measurement of the fluid rheology is adopted. The model is first applied at isothermal condition to 2 benchmark samples, namely Fontainebleau sandstone and Grosmont carbonate, and is found to be in good agreement with the Lattice Boltzmann method (LBM). Finally, at non-isothermal conditions, an effective mobility is introduced that enables to perform a numerical sensitivity study to fluid rheology, heat transfer, and operating conditions. While the mobility seems to evolve linearly with polymer concentration, the effect of the temperature seems negligible by comparison. However, a sharp contrast is found between carbonate and sandstone under the effect of a constant temperature gradient. Besides concerning the flow index and consistency factor, a good master curve is derived when normalizing the mobility for both the carbonate and the sandstone.
Inhibitory Properties of Neomycin Thin Film Formed on Carbon Steel in Sulfuric Acid Solution. Electrochemical and AFM Investigation
Authors: Samide Adriana , Iacobescu Gabriela Eugenia , Tutunaru Bogdan , Grecu Roxana , Tigae Cristian , Spînu Cezar
Published: September 2017

Our study aims to implement a strategy to reduce the carbon steel corrosion rate in sulfuric acid solution, using an expired drug with adsorption affinity on the metal surface. To investigate the corrosion protection efficiency of an environmental friendly inhibitor, namely neomycin sulfate (NMS), the electrochemical measurements were applied on carbon steel immersed in 1.0 M H2SO4 solution with and without NMS. The protective layer formed on the steel surface was studied by atomic force microscopy (AFM). The potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) showed that the presence of the neomycin sulfate in acid solution leads to the decrease in corrosion current density (icorr) and the increase of polarization resistance (Rp). The mixed mechanism between physical and chemical adsorption of NMS molecules on the steel surface was proposed according to the Langmuir adsorption isotherm. The Atomic Force Microscopy (AFM) indicated that the NMS molecules contributed to a protective layer formation by their adsorption on the steel surface. The AFM parameters such as: root-mean-square roughness (Rq); average roughness (Ra) and maximum peak to valley height (Rp-v) revealed that in the presence of NMS a smoother surface of carbon steel was obtained, compared to the steel surface corroded in sulfuric acid blank solution.
Strong Cognitive Symbiosis: Cognitive Computing for Humans
Authors: Veres Csaba
Published: September 2017

Cognitive Computing has become a catchphrase in the technology world, with the promiseof new smart services offered by industry giants like IBM and Google. Recent technological advances in Artificial Intelligence (AI) have thrown into the public sphere some old questions about the relationship between machine computation and human intelligence. While much of the industry and media hype suggests that many traditional challenges have been overcome, we show examples from language processing which demonstrate that present day Cognitive Computing still struggles with fundamental, long-standing problems with AI. An alternative conceptualization of artificial intelligence is presented, following Licklider’s lead in adopting man-computer symbiosis as a metaphor for designing software systems that enhance human cognitive performance. A survey of existing proposals based on this view suggests that a distinction can be made between weak and strong versions of symbiosis. We propose a Strong Cognitive Symbiosis which dictates an interdependence rather than simply cooperation between human and machine functioning, and show two systems under development where the symbiotic relationship benefits both actors in achieving the task outcome.
Multi-Objective Optimization of Experiments Using Curvature and Fisher Information Matrix
Authors: Manesso Erica , Srinath Sridharan , Gunawan Rudiyanto
Published: September 2017

The bottleneck in creating dynamic models of biological networks and processes often lies in estimating unknown kinetic model parameters from experimental data. In this regard, experimental conditions have a strong influence on parameter identifiability and should therefore be optimized to give the maximum information for parameter estimation. Existing model-based design of experiment (MBDOE) methods commonly rely on the Fisher Information Matrix (FIM) for defining a metric of data informativeness. When the model behavior is highly nonlinear, FIM-based criteria may lead to suboptimal designs since the FIM only accounts for the linear variation of the model outputs with respect to the parameters. In this work, we developed a multi-objective optimization (MOO) MBDOE, where model nonlinearity was taken into consideration through the use of curvature. The proposed MOO MBDOE involved maximizing data informativeness using a FIM-based metric and at the same time minimizing the model curvature. We demonstrated the advantages of the MOO MBDOE over existing FIM-based and other curvature-based MBDOEs in an application to the kinetic modeling of fed-batch fermentation of Baker's yeast.
Embodying Cognition in Cognitive Behavioral Therapy
Authors: Pietrzak Tania , Lohr Christina , Jahn Beverly , Hauke Gernot
Published: September 2017

The Embodied Cognitive Behavior Therapy (ECBT) approach for the treatment of emotional disorders in clinical settings is presented. The model integrates cognitive behavioral theory, neuroscience and embodied cognition. ECBT draws from evidence of bidirectional effects between modes of bottom up (sensori-motor simulations giving rise to important basis of knowledge) and top down (abstract mental representations of knowledge) processes in psychotherapy. The paper first describes the dominance of the traditional mentalistic view of cognition and its limitations. Evidence for the embodied model of cognition and emotion is reviewed whilst highlighting its advantages as a complimentary process model to deepen and broaden talking therapies. An overview is given of the switch (e.g., the technique of balancing) between top-down and bottom-up orientation in the ECBT model as well as a clear description of the method for emotional regulation, acceptance of unwanted emotions and emotional mastery. ECBT builds on and extends the unconscious processes of the ‘Interpersonal Synchrony’ (IS) model identified by Koole and Tschacher [1], to enhance the therapeutic alliance for emotional co-regulation. A new idea is proposed that both embraces and extends the IS model: embodiment techniques of imitation and movement synchronization in the Emotional Field of our method be used in a conscious way to speed up the calming effects of co-regulation and the client’s self-regulatory capacity. The paper ends with an outline of the criteria needed to become an embodied therapist. A case study is given highlighting these aspects.
Effect of Y Addition on the Semi-Solid Microstructure Evolution and the Coarsening Kinetics of SIMA AZ80 Magnesium Alloy
Authors: Tang Qi , Sun Hao , Zhou Mingyang , Quan Gaofeng
Published: September 2017

Semi-solid feedstock of AZ80 magnesium alloy modified by minor rare-earth Y element (0, 0.2, 0.4, 0.8 wt.%) were fabricated by strain induces melting activated (SIMA) in the form of extrusion and partial remelting. The effect of Y addition on the microstructure evolution of extruded and isothermal treated alloy was observed by optical microscope (OM), scanning electron microscope (SEM), X-ray diffraction (XRD) and quantitative analysis. The results show that the Y addition can refine the microstructure and make the β-Mg17Al12 phases agglomerating. During the subsequent isothermal treatment at 570℃, the average solid grain size, shape factor and liquid fractions increased with prolonged soaking time. Smaller spheroidal solid grains and the larger shape factor were obtained due to Y addition. The coalescence and Ostwald ripening of solid grains operated the coarsening process simultaneously. The coarsening rate constants of AZ80M1 (0.2 wt.% Y addition) of 164.22 μm3s-1 was approximately four times less than the un-modified AZ80 alloy of 689.44 μm3s-1. In contrast, the desirable semi-solid structure featured by fine, well globular solid grains and appropriate liquid fractions and shape factor was achieved in AZ80M1 alloy treated at 570℃ for 20-30 min.
IMU-Aided Dual-Frequency RFID Based Localization in LOS/NLOS Hybrid Environment
Authors: Wu Jie , Zhu MingHua , Xiao Bo , He Wei
Published: September 2017

The mitigation of NLOS (non-line-of-sight) propagation conditions is one of main challenges in wireless signals based indoor localization. When RFID localization technology is applied in applications, RSS fluctuates frequently due to the shade and multipath effect of RF signal, which could result in localization inaccuracy. In particularly, when tags carriers are walking in LOS (line-of-sight) and NLOS hybrid environment, great attenuation of RSS will happen, which would result in great location deviation. The paper proposes an IMU-assisted (Inertial Measurement Unit) RFID based indoor localization in LOS/NLOS hybrid environment. The proposed method includes three improvements over previous RSS based positioning methods: IMU aided RSS filtering, IMU aided LOS/NLOS distinguishing and IMU aided LOS/NLOS environment switching. Also, CRLB (Cramér-Rao Low Bound) is calculated to prove theoretically that indoor positioning accuracy for proposed method in LOS/NLOS mixed environment is higher than position precision of only use RSS information. Simulation and experiments are conducted to show that proposed method can reduce the mean positioning error to around 3 meters without site survey.
Creation and Confidence: BME students as academic partners….but where were the staff?
Authors: Jones-Devitt Stella , Austen Liz , Chitwood Liz , Donnelly Alan , Fearn Carolyn , Heaton Caroline , Latham Gabrielle , LeBihan Jill , Middleton Andrew , Morgan Matt , Parkin Helen , Pickering Nathaniel
Published: September 2017

This Case Study documents the REACT project 'Creation and Confidence' based at Sheffield Hallam University, which has a larger-than-expected Black Minority and Ethnic (BME) attainment gap; hence, this student group has been constructed as 'hard to reach'. The project team consisted of a range of academic and professional services staff alongside three dedicated student researchers. The project set out to achieve: gaining evidence-based insights into the use of co-design and peer-learning as conduits of confidence-building for and belonging of BME students; developing a scalable approach to building confidence for and fostering belonging of all students; raising awareness of the need to think differently about explanations for BME underachievement. In reality, the team found that staff engagement constituted the biggest barrier, as - no matter how much incontrovertible evidence was presented - other facets of institutional provision were always identified as having priority, which resulted in inertia. This study documents the emotional labour of trying to effect change within a resistant culture. Whilst some of the aims remain unachieved – and, arguably, were always going to be unachievable - there have been some very positive developments and enlightening lessons.
Why is the BME attainment gap such a wicked problem?
Authors: Austen Liz , Heaton Caroline , Jones-Devitt Stella , Pickering Nathaniel
Published: September 2017

This paper outlines a research process which followed a case study approach (Yin, 2009) to explore the Black and Minority Ethnic (BME) student attainment gap, and responses to it, at Sheffield Hallam University. A mixed methodology was envisaged, which would triangulate institutional data, measures of student engagement, focus groups and researcher reflections to construct an analysis of interventions aimed at enhancing confidence and belonging for BME students.  This discussion focuses on the challenges experienced by the research team and uses the notion of a 'wicked problem' to help understand the limitations faced.  'Wicked problems' (Rittel, 1972; see Conklin, 2005) are entrenched in social complexity, which increases in line with the diversity of the associated stakeholders. These problems have the ability to divide opinion, provide limited solutions and lay blame for lack of results. This research examining the BME attainment gap can be critiqued using this notion of a 'wicked problem', noting that, without recognition, this issue has the potential to become ubiquitous and almost unsolvable.
Examining predictors of retention with implications for TESTA@Greenwich
Authors: Walker Simon , McKenna Duncan , Abdillahi Abdillahi , Moleswoth Catherine
Published: September 2017

Student attrition is a pressing issue that universities across the world are attempting to solve. More recently, there has been a focus on retaining students from so-called ‘hard to reach’ groups. This paper proposes a methodology that investigates potential predictors of retention within the context of a particular institution, with the aim of defining who our ‘hard to reach’ students might be. It includes TESTA, a feedback and assessment enhancement process, as an independent variable to determine whether this particular enhancement initiative had any positive effects on retention. The authors use a statistical technique that permits a comparison of retention within the same programmes, pre- versus post-TESTA, relative to background changes in retention in programmes without TESTA over the same timescale.  The results of our analysis revealed that of the 10 predictors selected, the following were statistically significant: age group; gender; ethnicity; highest qualification on entry; academic session. These form the basis of our definition of who are ‘hard to reach’ students at our university. Whilst TESTA had no statistically significant impact on retention, several important implications for making specific interventions through TESTA in relation to assessment design and delivery to increase retention are discussed.
Reframing 'Hard to Reach' Student Engagement
Authors: Goddard Hannah
Published: September 2017

What does it really mean when we say a student or student group is ‘hard to reach’? This piece aims to question this way of phrasing student engagement, by challenging the assumptions inherent within it. Using learning from The Student Engagement Partnership’s ‘Student Engagement in the Context of Commuter Students’ (Thomas and Jones, 2017), this piece argues that using ‘hard to reach’ to define a group of students serves to absolve practitioners of their responsibility towards engaging these groups. In addition it argues that reframing engagement around spheres and levels enables a more nuanced understanding of students in their context.