bluuebunny/crossref_metadata_2025 huggingface dataset:
Sociëteiten, seksen en sferen
Authors: Smaele Henk de
Published: September 2015

Plaatsen van beschaafd vertier (Places of civilised pleasure) aims to tie in with the decades-long historiographical debate on the nineteenth-century ideology of separate spheres, and thus wishes to contribute to ‘the integration of gender as an analytical category in historical research’. To what extent has Jan Hein Furnée been successful in this endeavour? What relevance has this study for the longlasting debate on nineteenth-century gender relations and embourgeoisement? The answers to these questions remain somewhat blurred. This review essay scrutinises critically the assumptions and arguments of the author and concludes that concepts like ‘embourgeoisement’ and ‘class’ have been dismissed too easily and deserve to regain currency in gender history. Historians however, should refrain from interpreting late eighteenth-century and nineteenth-century transformations too readily in net terms of ‘more’ or ‘less’ female power and possibilities.This review is part of the discussion forum 'Plaatsen van beschaafd vertier' (Jan Hein Furnée). Plaatsen van beschaafd vertier wil aanknopen bij het decennialange historiografische debat over de negentiende-eeuwse ideologie van de gescheiden sferen en op die manier bijdragen tot ‘de integratie van sekse als analytische categorie in het historisch onderzoek’. In hoeverre is Jan Hein Furnée in die opzet geslaagd? En wat is precies de relevantie van deze studie voor het aanslepende debat over genderverhoudingen en verburgerlijking in de negentiende eeuw? Het antwoord op deze vragen blijft enigszins onduidelijk. In dit review essay worden de uitgangspunten en argumenten van de auteur kritisch tegen het licht gehouden. De conclusie daarbij is dat te gemakkelijk afgeschreven concepten als ‘verburgerlijking’ en ‘klasse’ het verdienen opnieuw centraler te worden gesteld in gendergeschiedenis, waarbij er wel op gelet moet worden de transformaties van de late achttiende en de negentiende eeuw niet te gemakkelijk te duiden in netto termen van meer of minder vrouwelijke macht en mogelijkheden. Deze recensie maakt deel uit van het discussiedossier 'Plaatsen van beschaafd vertier' (Jan Hein Furnée).
Voorvechters van regeneratie. Geschiedbeeld en toekomstverwachting in de Praktisch Idealisten Associatie (1919-1931)
Authors: Adriaansen Robbert-Jan
Published: September 2015

Champions of Regeneration: Conceptions of History and Expectations of the Future of the Praktisch Idealisten Associatie [Practical IdealistsAssociation] (1919-1931)Historical debates about reform movements in the fin de siècle and the interwar period in the Netherlands have focussed on what the Marxist historian Jan Romein once called ‘small faiths’ – naïve idealistic movements resulting from the guilt complex of the bourgeois class. Romein’s analysis has been criticised numerous times and historians have argued that although many ‘small faiths’ did not succeed in reaching their goals, at least they contributed to the imagination of the future. In this article Robbert-Jan Adriaansen argues that such analysis should always be paired with that of the conceptions of history that underlie the imaginations of the future. Not only the imagination, but also the meaning and function of the ‘future’ are historically variable. The ‘small faiths’ were environments par excellence in which conceptions of history were explored that are at odds with the modern historical consciousness usually presupposed in the study of history. Inthis article this approach is used to analyse the Praktisch Idealisten Associatie (1919-1931) – a bourgeois youth movement striving for a new and better society inspired by a conception of history derived from the odd combination of Hegelianism and Theosophy. Het historisch debat over de hervormingsbewegingen van het fin de siècle en het interbellum is lange tijd bepaald geweest door Jan Romeins analyse van deze bewegingen als ‘kleine geloven’ – naïeve idealistische bewegingen die ontstaan zijn uit het schuldcomplex van de burgerlijke klasse. Romeins analyse is al vaak bekritiseerd en historici stellen dat hoewel veel ‘kleine geloven’ hun idealen niet hebben gerealiseerd, zij op zijn minst hebben bijgedragen aan de verbeelding van een nieuwe toekomst. In dit artikel wordt gesteld dat de analyse van deze toekomstbeelden altijd gepaard moet gaan met een analyse van degeschiedopvatting van de betreffende bewegingen. Niet alleen de verbeelding, maar ook de betekenis en functie van de ‘toekomst’ zijn historisch variabel en juist door de ‘kleine geloven’ werd geëxperimenteerd met geschiedopvattingen die afwijken van het moderne historisch besef dat door de geschiedwetenschap doorgaans voorondersteld wordt. In dit artikel wordt deze benadering toegepast op de casus van de Praktisch Idealisten Associatie (1919-1931), een burgerlijke jeugdbeweging die zich in het interbellum de verwezenlijking van een nieuwe, betere samenleving ten doel stelde op basis van een geschiedbeeld ontleend aan de merkwaardige combinatie van hegelianisme en theosofie.
A prefixação na tradição gramatical portuguesa
Authors: Rio-Torto Graça
Published: September 2015

RESUMO:

O objetivo deste estudo consiste em rastrear o modo como a prefixação tem sido analisada na tradição gramatical portuguesa. Para tal, são consideradas gramáticas de referência, brasileiras e portuguesas, desde J. Soares Barbosa (1822) a Said Ali (1931), por forma a observar os fundamentos teóricos e os resultados da sua aplicação ao universo da prefixação da língua portuguesa. Sendo a prefixação um espaço de fronteira entre a derivação e a composição, os estudos escrutinados refletem esse contínuo. Analisam-se em particular as unidades morfolexicais cujo tratamento oscila entre a prefixação e a composição, e comentam-se criticamente os argumentos aduzidos em vista a uma optimização da sua percepção por parte das gramáticas contemporâneas. Após a introdução, o artigo estrutura-se em duas grandes secções: a prefixação como subclasse da composição e a prefixação como subclasse da derivação. Uma secção final analisa criticamente as perspectivas compulsadas e bem assim as modernas tendências de tratamento da prefixação na literatura gramatical contemporânea brasileira e portuguesa.

PALAVRAS-CHAVE: Formação de Palavras. Prefixação. Composição. Gramaticografia do Português. Teoria Morfológica
Resenha
Authors: Rosa Maria Carlota
Published: September 2015

Cavaliere, Ricardo. A gramática no Brasil: ideias, percursos e parâmetros. Rio de Janeiro: Lexikon, 2014. Orelha assinada por Evanildo Bechara. 176pp. R$36,00
A produção escrita no ensino fundamental: o quê, como e para quem se escreve?
Authors: Lima Vanessa Wendhausen , Ferretti-Soares Vanessa Arlésia de Souza , Silveira Ederson Luís
Published: September 2015

RESUMO:

A partir de 69 relatórios de 17 professores acerca do trabalho desenvolvido em turmas do Ensino Fundamental II, na região do Vale do Itajaí/SC, o presente artigo tem por objetivo apresentar reflexões acerca de três pontos norteadores: a) o quê; b) como e c) para quem se escreve nas aulas de português. A partir de reflexões pautadas no estudo dos letramentos, percebeu-se que há legitimação de práticas de letramento escolar pautadas no modelo autônomo e eventos reconfiguradores dessas práticas, que contribuem para a efetivação do letramento ideológico, com interações que envolvem sujeitos para além da sala de aula, incorporando também os sujeitos situados nas instâncias de ensino e aprendizagem.

PALAVRAS-CHAVE: ensino de língua portuguesa, letramento; produção textual; gêneros discursivos.
Línguas brasílicas: poder e identidade linguísticas no Brasil do século XVI (um estudo de história social da linguagem)
Authors: Silva Maurício
Published: September 2015

RESUMO

No presente artigo analisaremos a questão da identidade e do poder relacionada às línguas faladas no Brasil colônia, empregando para tanto as diretrizes da História Social da Linguagem. Analisaremos, para tanto, textos (relatos, cartas, histórias etc.) produzidos ao longo do século XVI e que se referem especificamente ao contexto do Brasil recém-descoberto.

PALAVRAS-CHAVE

Brasil colônia, línguas, século XVI, História Social da Linguagem
Marcas de uso temporais em um dicionário dialetológico
Authors: Antunes Santos Carolina do Socorro
Published: September 2015

RESUMO:

Visando colaborar com os estudos sociolinguísticos e dialetais em Minas Gerais, este trabalho busca apontar um aspecto relevante da/na investigação linguística contemporânea: o estudo das marcas de uso, mais precisamente, das marcas de uso temporais. Assim, com base na literatura linguística e na frequência dessas marcas no Dicionário do dialeto rural no Vale do Jequitinhonha – Minas Gerais, elas foram definidas e classificadas, considerando sua existência num continuum temporal concretizado, de um lado, pelas retenções linguísticas e, de outro, pelos neologismos.

PALAVRAS-CHAVE:

Variação linguística, Lexicologia, Marcas de uso temporais, Continuum temporal
A relação entre os nomes e as coisas: reflexões gregas e saussurianas
Authors: Pereira de Matos Denilson , De Souza Brito Amanda
Published: September 2015

RESUMO:

Este trabalho destaca a relação entre os nomes e as coisas por eles designadas, objetivando apresentar os estudos que abordaram a questão desde a antiguidade grega até o início do século XX. Ressaltamos as perspectivas grega e saussuriana, propondo relações de semelhança e/ou diferença entre elas. As ideias gregas aparecem sob a ótica dos estudos de Platão, Aristóteles e dos sofistas que lhes faziam oposição. Na visão saussuriana, apontamos a arbitrariedade do signo linguístico contrária às relações naturais entre os nomes e as coisas.

PALAVRAS-CHAVE: Relação. Platão. Sofistas. Aristóteles. Arbitrariedade.
Apresentação. Homenagem a Horácio França Rolim de Freitas
Authors: Cavaliere Ricardo
Published: September 2015

O presente número de Confluência presta homenagem a Horácio França Rolim de Freitas, um dos mais qualificados filólogos brasileiros das últimas gerações, falecido em 1 de novembro de 2014.
RESÍDUOS SÓLIDOS NA SOCIEDADE CONSUMERISTA PÓS-MODERNA: UM DESAFIO PARA O DESENVOLVIMENTO SUSTENTÁVEL
Authors: Stefani Caroline Rossatto , Lunelli Carlos Alberto
Published: September 2015

As questões ambientais adquiriram gradativamente importância na legislação brasileira. A inclusão de uma postura ambiental e a concepção acerca do desenvolvimento sustentável remete a necessidade de discussões acerca do consumo, da “pós-modernidade”, da geração dos resíduos e da nova postura do cidadão brasileiro. A sociedade contemporânea é entendida como uma sociedade de consumo, que tem como questão central o desejo, que remete a ideia de insaciabilidade, da busca permanente por novos objetivos. Segundo o olhar pós-moderno, a sociedade atual molda seus cidadãos a desempenhar o papel de consumidores. Os padrões elevados de consumo desencadeiam uma produção alarmante de resíduos, ao passo que o estudo de conceitos acerca do tema, da legislação vigente e do comportamento da sociedade diante uma política nacional de resíduos recente, torna-se fundamental para uma melhor compreensão das propostas apresentadas pelo legislador quanto à gestão dos resíduos sólidos.
A INTERPRETAÇÃO CONFORME A CONSTITUIÇÃO DO INSTITUTO DA AUTORIZAÇÃO PARA O LICENCIAMENTO AMBIENTAL DOS ÓRGÃOS GESTORES DE UNIDADE DE CONSERVAÇÃO
Authors: Christofoli Bruno de Andrade
Published: September 2015

O artigo tem por objetivo analisar o instituto da autorização dos órgãos responsáveis pela administração das unidades de conservação para o licenciamento ambiental de empreendimentos ou atividades que afetem a própria unidade ou sua zona de amortecimento, nos termos do que dispõe o artigo 36, §3º, da Lei n. 9.985/00. Tendo em vista a possibilidade de uma dupla interpretação desse instituto, socorrer-se-á ao princípio da interpretação conforme à Constituição para se buscar a único interpretação compatível com o texto constitucional, especialmente com o direito ao meio ambiente ecologicamente equilibrado, com a exigência de lei complementar para instituir normas de cooperação para o exercício da competência comum em matéria ambiental e com o princípio da autonomia federativa.
A EFETIVAÇÃO DE DIREITOS FUNDAMENTAIS: A RELAÇÃO ENTRE O DESENVOLVIMENTO E O PLEXO CONSTITUCIONAL
Authors: Silva Lucas do Monte , Guimarães Patrícia Borba Vilar
Published: September 2015

A presente pesquisa parte da premissa segundo a qual a interconexão mostra-se como um dos marcos do século XXI. Nenhum assunto, disciplina, tema, direito, grupo social subsiste em compartimentos estanques, alheios às evoluções de outros elementos, pelo contrário, cada vez mais os assuntos e paradigmas se confundem, interpenetram e complementam-se. Nesse sentido, este artigo objetiva-se, por meio de pesquisa bibliográfica e documental, discutir e analisar as relações entre o Direito e Desenvolvimento, mais especificamente a nova visão do desenvolvimento e o plexo constitucional das Leis Maiores hodiernas, influenciadas pelo paradigma pós-positivista. Além disso, investigam-se as influências externas e internas, diretas e indiretas, da efetivação do direito à educação no plexo constitucional e no contexto do desenvolvimento das nações.
Relationship between solar activity and flood/drought disasters of the Second Songhua river basin
Authors: Hong-yan Li , Li-jun Xue , Xiao-jun Wang
Published: September 2015

Based on the direct correlation method, this paper analyzes the correlation of sunspot number (SSN) and western Pacific subtropical high (WPSH) ridge index with flood/drought disasters in the Second Songhua River (SSHR) basin, combined with long sequences of SSN, WPSH ridge index, precipitation and other data. Results show that SSN is clearly correlated with flood/drought disasters, what is more, flood years mainly appear in three phases: Solar Maximum Year, years after Solar Maximum Year and Solar Minimum Year. In addition, there is an alternate change of flood/drought with a 10-year cycle. This paper uses the commensurable method to identify the periods of floods and droughts in the study area. According to the commensurable diagram, catastrophic nodes of the future floods or droughts in SSHR basin can be primarily predicted as follows: 2021 will be a flood year, while 2013, 2016 and 2024 will be high flow years; 2012 and 2022 will be dry years, while 2014, 2018 and 2027 will be low flow years. Moreover, forecast accuracy of flood/dry years is higher than the one of high/low flow years. Prediction of flood/drought has an error of ±1 year, which can be tracked and corrected with a scatter diagram.
Using climate scenarios to evaluate future impacts on the groundwater resources and agricultural economy of the Texas High Plains
Authors: Tewari Rachna , Johnson Jeff , Mauget Steven , Leiker Gary , Hayhoe Katharine , Hernandez Annette , Hudson Darren , Wang Chenggang , Patterson Dennis , Rainwater Ken
Published: September 2015

This study evaluated the impacts of future climate scenarios on the groundwater resources and agricultural economy of the Texas High Plains, using Hale county as a case study. Climate change impacts were incorporated into regional economic models using weather projections to develop crop response functions from crop models. These projections are based on quantitative projections of precipitation, potential evapotranspiration, and temperature trends driven by simulations from the latest IPCC AR4 climate models (Community Climate System Model (CCSM), Geophysical Fluid Dynamics Laboratory (GFDL), UK Met Office Hadley Model (HadCM3), and Parallel Climate Model (PCM)) under two specific emissions scenarios, A1B (mid-range) and A1FI (higher). Results indicated that for both the emission scenarios, saturated thickness, water use per cropland acre, and irrigated acreage declined under climatic predictions by all four models. At the end of the 90 year horizon, the A1B scenario resulted in a decline in average net income per acre as predicted by the CCSM and HadCM3 models, while the GFDL and PCM models predicted an increase in average net income per acre. Under the A1FI scenario, the CCSM, GFDL, and PCM model projections led to increased average net income per acre, while climate projections under the HadCM3 model indicated a decline in average net income per acre at the end of the 90 year horizon.
Climate change impact on rainfall and temperature in Muda irrigation area using multicorrelation matrix and downscaling method
Authors: Tukimat Nurul Nadrah Aqilah , Harun Sobri
Published: September 2015

Statistical downscaling model was used to generate 30-year climate trend of Kedah – the state which has the largest cultivation area in Malaysia, resulting from climate changes. To obtain a better predictors set, multicorrelation matrix analysis was added in the climate model as a screening tool to explain the multiple correlation relationship among 26 predictors and 20 predictands. The performance of the predictor set was evaluated statistically in terms of mean absolute error, mean square error, and standard deviation. The simulation results depict the climatic changing trend in this region in terms of temperature, rainfall, and wet and dry length compared to historical data captured from 1961 to 2008. Annual temperature and rainfall depth are expected to increase 0.2 °C per decade and 0.9% per year, respectively, from the historical record. The months of November and January are expected to receive the highest and lowest rainfall depth, respectively, because of the two monsoon seasons. The wet spell is estimated to be from May to November in the middle of Kedah. The annual dry spell shall be from January to March, and is expected to shorten yearly.
Efficiency of maize irrigation scheduling in climate variability and extreme weather events in eastern Croatia
Authors: Marković Monika , Tadić Vjekoslav , Josipović Marko , Zebec Vladimir , Filipović Vilim
Published: September 2015

This study was conducted (2010–2012) to analyse the efficiency of irrigation scheduling in maize production based on soil moisture measurements (Watermark soil moisture sensors) in years with extreme weather events at the research site of the Agricultural Institute in Osijek, eastern Croatia. Three irrigation treatments and four maize hybrids were studied. In the extremely rainy 2010, the highest yield of maize grain was obtained in rainfed plots (control = 9.24 t ha−1). A significantly (P < 0.01) lower yield (−8%) was obtained in fully irrigated plots (a3 = 8.59 t ha−1). This was opposite to the results obtained from the extremely warm 2011 and very dry 2012, when grain yield was higher as the amount of irrigation water was increased. Maize grain yield in the fully irrigated plot was 25% (2011) and 40% (2012) higher compared with the control plots (dryland). According to our results, the main factor for irrigation efficiency in extreme weather conditions is to properly determine the optimum level for soil moisture sensors and ground water level in relation to root depth.
Accountability Pressure, Academic Standards, and Educational Triage
Authors: Lauen Douglas Lee , Gaddis S. Michael
Published: September 2015

Despite common conceptions, evidence on whether No Child Left Behind (NCLB) has had adverse effects for low achieving students is mixed. We hypothesize that the incentive to shift attention away from the lowest achieving students increases with the rigor of state standards. Using panel data from students in North Carolina, we exploit two natural experiments: increases in the rigor of standards in math in 2006 and then again in reading in 2008. We report an increase in test score gaps between low and high achievers and students near grade level. Adverse effects on low achievers are largest in the lowest achieving schools. We discuss the policy implications of our findings given the widespread adoption of more rigorous Common Core Standards.
Immigrant Selection Systems and Occupational Outcomes of International Medical Graduates in Canada and the United States
Authors: McDonald James Ted , Warman Casey , Worswick Christopher
Published: September 2015

We analyze the process of immigrant selection and occupational outcomes of international medical graduates (IMGs) in the United States and Canada. We find that in Canada, where a point system has been in place, IMGs are less likely to be employed as physicians than are IMGs in the United States, where employer nomination is a more important entry path for IMGs. We also find that when the point system in Canada did not have occupational restrictions, IMGs had a relatively low probability of working as physicians.
Influenza a Virus Infection is associated with Systemic Capillary Leak Syndrome: Case Report and Systematic Review of the Literature
Authors: Sousa Adrian , Len Oscar , Escolà-Vergé Laura , Magnifico Bruno , Mora Chema , Papiol Elisabeth , Revilla Eva , Almirante Benito
Published: September 2015

Systemic capillary leak syndrome is a rare and potentially lethal disorder characterized by episodes of vascular hyper-permeability, which lead to shock. Although the pathogenesis is unknown, some viral infections can act as triggers. We present the first case associated with influenza A virus in adulthood, perform a literature review and discuss its treatment.
Big Data and Data Modelling for Manufacturing Information Systems
Authors: Gwangwava Norman , Mpofu Khumbulani , Mhlanga Samson
Published: September 2015

The evolving Information and Communication Technologies (ICTs) has not spared the manufacturing industry. Modern ICT based solutions have shown a significant improvement in manufacturing industries' value stream. Paperless manufacturing, evolved due to complete automation of factories. The chapter articulates various Machine-to-Machine (M2M) technologies, big data and data modelling requirements for manufacturing information systems. Manufacturing information systems have unique requirements which distinguish them from conventional Management Information Systems. Various modelling technologies and standards exist for manufacturing information systems. The manufacturing field has unique data that require capturing and processing at various phases of product, service and factory life cycle. Authors review developments in modern ERP/CRM, PDM/PLM, SCM, and MOM/MES systems. Data modelling methods for manufacturing information systems that include STEP/STEP-NC, XML and UML are also covered in the chapter. A case study for a computer aided process planning system for a sheet metal forming company is also presented.
Big Data Analysis in IoT
Authors: Rehman Aqeel-ur , Ullah Rafi , Abdullah Faisal
Published: September 2015

In IoT, data management is a big problem due to the connectivity of billions of devices, objects, processes generating big data. Since the Things are not following any specific (common) standard, so analysis of such data becomes a big challenge. There is a need to elaborate about the characteristics of IoT based data to find out the available and applicable solutions. Such kind of study also directs to realize the need of new techniques to cope up with such challenges. Due to the heterogeneity of connected nodes, different data rates and formats it is getting a huge challenge to deal with such variety of data. As IoT is providing processing nodes in quantity in form of smart nodes, it is presenting itself a good platform for big data analysis. In this chapter, characteristics of big data and requirements for big data analysis are highlighted. Considering the big source of data generation as well as the plausible suitable platform of such huge data analysis, the associated challenges are also underlined.
Comparative Analysis of Efficient Platforms
Authors: Ahmed Khawaja Tehseen , Ul-Haq Mazhar , Shaikh Arsalaan Ahmed , Rasool Raihan ur
Published: September 2015

With the advancement of technology we are heading towards a paperless environment. But there are still a large numbers of documents that exist in paper format in our daily lives. Thus the need to digitize these paper documents, archive them and view them at all times has arisen. The number of documents of a small organization may be in thousands, millions or even more. This chapter presents comparative analysis of different programming languages and libraries where it is intended to parallel process a huge stream of images which undergo unpredictable arrival of the images and variation in time. Since the parallelism can be implemented at different levels, different algorithms and techniques have also been discussed. It also presents the state of the art and discussion of various existing technical solutions to implement the parallelization on a hybrid platform for the real time processing of the images contained in a stream. Experimental results obtained using Apache Hadoop in combination with OpenMP have also been discussed.
Analysis of VDM++ in Regression Test Suite
Authors: Qaisar Zahid Hussain , Ahmad Farooq
Published: September 2015

Regression testing is important activity during the maintenance phase. An important work during maintenance of the software is to find impact of change. One of the essential attributes of Software is change i.e. quality software is more vulnerable to change and provide facilitation and ease for developer to do required changes. Modification plays vital role in the software development so it is highly important to find the impact of that modification or to identify the change in the software. In software testing that issue gets more attention because after change we have to identify impact of change and have to keenly observe what has happened or what will happen after that particular change that we have made or going to make in software. After change software testing team has to modify its testing strategy and have to come across with new test cases to efficiently perform the testing activity during the software development Regression testing is performed when the software is already tested and now some change is made to it. Important thing is to adjust those tests which were generated in the previous testing processes of the software. This study will present an approach by analyzing VDM (Vienna Development Methods) to find impact of change which will describe that how we can find the change and can analyze the change in the software i.e. impact of change that has been made in software. This approach will fulfill the purpose of classifying the test cases from original test suite into three classes obsolete, re-testable, and reusable test cases. This technique will not only classify the original test cases but will also generate new test cases required for the purpose of regression testing.
A New Variable Structure Control Scheme for Mismatched Uncertain Large Scale Systems
Authors: Tsai Yao Wen , Duc Phan Van , Huynh Van Van
Published: September 2015

In this paper, a new decentralized adaptive output feedback variable structure control scheme is designed for mismatched uncertain large-scale systems where the exogenous disturbance is unknown. The proposed approach uses output information completely in sliding surface and controller design. Therefore, conservatism is reduced and robustness is enhanced. Furthermore, the reduce order system in sliding mode is asymptotically stable under certain conditions. Finally, a numerical example is used to demonstrate the efficacy on the method.
Development of an Experimental Setup for the Altitude Control of a Ball in a Pipe
Authors: Akyürek Şeyma , Özden Gizem Sezin , Kasnakoğlu Coşku
Published: September 2015

In this paper we consider the development of a ball-and-pipe system controlled by an Arduino-based PID controller designed and tuned numerically in MATLAB/Simulink environment. The controller achieves small overshoot and fast settling time. The system is intended to be used as a laboratory experiment in control systems theory courses.
Machining Parameters Optimization for Trimming Operation in a Milling Machine Using Two Level Factorial Design
Authors: Mohamed Saiful Bahri , Mohamad Wan Noor Fatihah , Yew Been Seok , Minhat Mohamad , Kasim Mohd Shahir , Ibrahim Zakaria , Musanih Muhamad Ruzlan , Besar Ramli
Published: September 2015

Trimming process using Solid Carbide, 4 flute endmill of 8mm diameter tool on stacks of multidirectional CFRP/Al-2024 in a CNC Milling machine was experimentally investigated. The machining parameters considered were spindle speed (N), feed rate (fr) and depth of cut (dc). The aims were to analyze the influence factors and the interaction of these parameters with respect to surface quality produced. A Two Level Factorial Design method was used to plan systematic experiments. The influence factors and the interaction between these parameters are analyzed and the optimum machining parameters for minimizing the surface roughness is determined. The analysis of variance (ANOVA) shows that dc and fr are the most significant parameters to the overall performance of surface quality. Surface roughness of CFRP is found to be 1.778 µm and Al2024 is found to be 0.983 µm at the setting of N = 1860 rpm, fr = 620 mm/min and dc = 0.12 mm respectively. The validation test shows deviation of predicted to actual value surface roughness is 7.87% for CFRP and 6.61 % for Al2024.
A Systematic Approach for Optimal Design of SVC Controller to Reduce the Disturbances in Electric Arc Furnace Using Generic Algorithm
Authors: Abbasian Mohammadali , Noorzadeh D. , Hasanzadeh S. , Hanaeinejad V.
Published: September 2015

Static Var Compensator (SVC) is one of FACTS devices which is used in power systems in order to have a better voltage quality. The fluctuations of voltage and current of the grid connected to electric arc furnace causes power quality problems in the network. SVC, as a fast reactive power control equipment, plays an important role in improving the voltage profile and the transient dynamics of the system arising from the nature of the arc. In this paper the effect of implementing SVC in Mobarakeh Steel Company, for mitigating the voltage transient of power system which is connected to an electric arc furnace, is studied. Then the coefficients of the SVC PI controller are optimized using genetic algorithm and the simulation results are presented.
Analysis and Initialization of GE Wind Turbine Control Model
Authors: Becirovic Elvisa , Osmic Jakub , Toal Daniel , Kusljugic Mirza , Peric Nedjeljko
Published: September 2015

In this paper the analysis of a General Electric Wind Turbine Control Model (GEWTCM) and comparison with a Generic Wind Turbine Control Model (GWTCM) is presented. The analysis is performed for the GEWTCM stationary state. Based on the analysis, a systematic method for the GEWTCM initializations as well as a methodology for calculation of the GEWTCM operating point in steady state are presented. It has been shown that, due to lack of limiting of the pitch controller and pitch compensation, uniqueness of solution for initial and steady state values of all GEWTCM state variables are ensured except for the state variables of the pitch controller and pitch compensation. Conclusions from the analysis can help in the implementation of the wind turbine control model in power system dynamic simulation software packages in applications with variable wind speed.
Fabrication of High Strength Concrete from Recycled Concrete Aggregate Utilizing Taguchi Method
Authors: Magdaluyo Jr. Eduardo , Aterrado Lorenz Charles E. , Paz Jared Christian B. , Gonzales Ivy Rose B.
Published: September 2015

The preparation of concrete mixtures can be tailored to provide wide range of mechanical and durability properties as well as to meet the design specifications of the structure. This paper discusses the potential use of recycled concrete aggregate in the production of high strength concrete. The effect of other processing parameters such as aggregate replacement ratio, type of admixture and slump height on the compressive strength and water absorption rate of different concrete mixes were investigated. The fabrication of high strength concrete was done by machine-mixing of the aggregates, cement and admixture in accordance with ASTM C192, utilizing the Taguchi design to derive the concrete mixtures. Using the 10% recycled fine aggregate with Mira P99 admixture and slump height of 4-6 inches showed an optimum condition and yielded a predicted maximum compressive strength at around 8400 psi. The failure mode of the concrete after compression test was generally shear fracture type. For the water absorption rate, only the admixture had a significant effect. Surface morphology of the fractured concrete surface revealed that utilizing recycled concrete aggregate resulted to a porous surface morphology compared to the natural aggregate.
Identifying Radius of Rebar Buried in Concrete Massif by Using Electromagnetic Penetrating Radar
Authors: Mechbal Zoubaida , Khamlichi Abdellatif
Published: September 2015

In this work, identification of rebar radius for a single steel reinforcement buried in a concrete member was investigated. A method based on electromagnetic penetrating radar was proposed. The principle of this method consists of working with adequate high frequency antennas that emit short pulses and measure the reflected echoes from the discontinuities present inside the medium. Image post-processing of the obtained B-scan radargrams enabled to extract essential information which has facilitated the derivation of a correlation formula to estimate the rebar radius. Predictions made by this formula were found to achieve better accuracy than previously known methods.
Numerical Modeling of Wind around Buildings of Different Heights
Authors: Sattar Ahmed M.A. , Elhakeem Mohamed
Published: September 2015

This paper presents a numerical study to simulate airflow around an array of buildings with different heights. The simulation showed a complex 3D flow pattern around the buildings. The velocity and standard deviation around the short buildings increased by about 30% compared to the same arrangement with buildings of the same height. Thus, the existence of the tall buildings increased the turbulence level and velocity magnitude around the short buildings. This suggests that the proposed buildings arrangement and spacing were effective in improving the wind environment around the buildings.
Grouted Pipe with Double Spirals for Precast Concrete Connections
Authors: Rahman Ahmad Baharuddin Abd , Miang Goh Hiang , Ahmad Yusof
Published: September 2015

This paper presents the pullout performance of grouted splice connections made with steel pipes and double spirals in connecting high tensile steel deformed bars. The parameters studied were the steel bar embedded lengths, grout strength and diameter of the pipe in influencing the tensile performance of the splice connections. A total of nine proposed grouted spiral connections with double spirals were tested under increasing axial tension until failure. The results indicated that the use of double spiral combined with grout strength of at least 60 N/mm2 and main steel bar embedded length of 10 times bar diameter could provide adequate bond strength to form a satisfactory precast connection system.
Seismic Performance Improvement of 3D Reinforced Concrete Frames with Different Strengthening Applications
Authors: Bahadir Fatih , Balik Fatih Süleyman
Published: September 2015

This study used test frames were purposely detailed and constructed with observed deficiencies in investigated dormitory buildings of Turkey. In this study, four reinforced concrete frames were produced two storeys, one bay and 3D in 1/6 geometric scale was tested. Since the studied frame was the external frame of the structure, brick infill wall with a window opening was also included. The first specimen was the reference specimen and contained no strengthening and no brick wall. The second specimen was contained brick wall. The third specimen was strengthened with internal steel panel. Finally fourth specimen’s was strengthened with infilled RC shear wall. The test specimens were subjected to reversed cyclic quasi-static lateral loading. Strength of the test specimens were measured and compared. Test results indicated that the strengthened specimens displayed significantly higher lateral strength than the reference specimen considerably.
Influence of Very Old Masonry in the Seismic Damage of an Historic Tower
Authors: Aldreghetti Ivano , Ientile Silvia , Russo Salvatore
Published: September 2015

This paper examines the causes and the collapse of an historic masonry tower, underlining the influence of material's resistance and in particular its state of conservation. NDT tests such as sonic test on masonry evaluates wave propagation's speed through the surface layers to investigate the state of material and stratification. A FE model has been used to determine dynamic parameter of the structure, and to make a comparison than effective damages. The investigation face the relation between the material and the structural seismic response of the tower.
Study on the Spring-Back Effect with Stress Distribution According to Forming Sheet Width in the Roll Forming Process
Authors: Kim D.H. , Yu Hao , Jung Dong Won
Published: September 2015

This study, based on finite element analysis, analyzed the spring back phenomenon and stress distribution of forming sheets (HTS) in the roll forming process. By comparison of the stress distribution, this study analyzed two kinds of simulation. The first simulation performed simple bending simulation before roll forming simulation. With reference to the first simulation results, the second simulation analyzed the relationship between the stress distribution and the phenomenon of spring back. We also studied the stress distribution effect for spring back in the forming sheet.
Fiber Reinforced Composite Materials in Architecture
Authors: Öztaş Saniye Karaman
Published: September 2015

Composite materials are made from two or more constituent materials with significantly different physical or chemical properties. The materials work together to give the composite more excellent properties than its components.Fiber reinforced composite materials constitute a widely used group of the composites. There are many researches about fiber reinforced composites. This study focused on fiber reinforced composite materials used in architecture unlike other researches. It was aimed to specify the benefits of the fiber composite materials for architecture and discussed several recent developments related to these materials. A literature review was made by grouping composites materials. The study reported that more research is needed for fiber reinforced composites to improve their technical performance, environmental and economic properties.
Evaluation of Product Quality Using Standardized Distance from Target
Authors: Hong Sung Jin , Park Min Kyu , Na Jong Hwa , Cho Wan Sup
Published: September 2015

In this study, we discuss how to determine quality grades using the results from product tests. If many previous studies focus on how to conduct a test to find out bad products, or what test results you may use to find out good quality, we here studied on how we can integrate and utilize all the results of the tests we are carrying out, in order to find out products with good quality, rather than concentrating on a particular test. Through this, we are going to suggest measures to select and deliver only the products with good quality to the enterprises or fields where they are very sensitive to quality, while enhancing the effect of the reduction of the qualityrisk cost.
Image Processing of Product Surface Defect Using Scilab
Authors: Awang Nurfadzylah , Fauadi M.H.F.M. , Rosli Nurizati Syakirin
Published: September 2015

— The defect is an imperfection that impairs worth or utility. The defects show some disorder of the product and it is opposite the standard or criteria that have been stated.. In order to define the defect, some techniques are being used. One of the technique is using image processing. The image will be captured by the camera and the image appear will be imported to the Scilab software to read it. Otherwise, the image will be translated into histogram graph to show the frequency (pixel) and grayscale value of the defect.Index Terms— Defect image, surface defect, grayscale image, Scilab software, histogram graph
Genetic Modelling for Selecting Optimal Machine Configurations in Reconfigurable Manufacturing System
Authors: Hasan Faisal , Jain P.K.
Published: September 2015

Selecting the optimum machine configurations for any product flow line has direct implications on the system performance. In the present paper, an evolutionary algorithm based methodology has been proposed for optimal machine assignment based on a weighted objective function. The objective function includes reliability, cost, production time and operational capability as performance indicators. The methodology demonstrates how several performance parameters can be dealt with, in order to select optimal machine configurations for distinct stages across any serial product flow line. The proposed approach can possibly be employed in handling the RMS performance issues and optimal trade-offs among the various performance parameters.
Construction of a Cloud Manufacturing Platform for Service Sharing in Manufacturing Industry Park
Authors: Tan Ming Zhi , Yi Shu Ping , Zeng Rui , Guo Zong Lin
Published: September 2015

Industrial Parks thrive in China in the last few decades, but they face the problems of weak accumulative effect, low utilization rate of idle resources and loose regional bonds. To solve these problems, a cloud manufacturing platform is proposed to share services in Industrial Parks. Specially, the principles, architecture and operational model of CMPSS are discussed and investigated to facilitate the inter-enterprises collaboration. Furthermore, four key technologies to implement CMPSS including resource servitization, task decomposition, optimal service allocation and service trust evaluation are conducted to lay a foundation for further research and applications.
An Optimization of Automated Process Planning for Manufacturing Prismatic Parts on a Machining Center
Authors: Kongchuenjai Janjira , Prombanpong Suksan
Published: September 2015

One of the objectives of process planning optimization is to diminish machining time. Nowadays a lot of research papers presented different algorithms to solve this classic problem. Thus, the optimal sequence of parts in the machining operations by considering fixture faces, part faces, number of operations and number of tools is presented in this paper. The mathematical model based on the integer linear programming is developed to minimize the total production time of the prismatic parts manufactured on a CNC machining center equipped with the tombstone-type fixture. The time required for machining, tool traveling and tool changing is taken into consideration under relevant constraints such as precedence, fixture and available cutting tools. The optimal process plan can be obtained from the mathematical model and it is considered practical and acceptable.
An Application of Value Stream Mapping in Ceramic Tile Industry: A Case Study
Authors: Joochim Orapadee , Jungthawan Siripong
Published: September 2015

The purpose of this paper is to increase the productivity of a ceramic tile manufacturing process using lean manufacturing technique. The current system of the ceramic tile manufacturing process has been mapped using Value Stream Mapping (VSM) tool, which is a lean manufacturing tool and the wastages in the current system are identified. Afterwards, future state has been created by using VSM tool, which has enhanced process ration by decreasing maximum possible waste in the manufacturing process. The case study demonstrates how the VSM tool has been used to identify and reduce waste in the manufacturing process by 26%, unnecessary inventory by 8.33% and working time of the color-mixing department by 21.57%. This flexibility enhancement causes 2.67% shorter lead time, 2.70% higher value-added ratio and frequent product delivery leading to more profits.
A Heuristic Approach for Type 2 Assembly Line Balancing Problem
Authors: Pakeeza Bukhari , Riaz Ahmad , Umer Muhammad
Published: September 2015

An assembly system consists of work stations where specific tasks are carried in such a way that last station gives the complete product. An assembly line balancing Problem (ALBP) involves optimally assigning tasks among workstations with respect to some performance objective. ALBP problems are of NP hard nature and in literature; many efforts are there to solve the problem efficiently through heuristics. This paper proposes a heuristic algorithm for solving type 2 ALBP for single objective optimization. The proposed algorithm assigns tasks to a fixed no of stations with objective of minimizing cycle time. In literature, type 2 ALBP is mostly solved through Type 1 problem. However, this paper proposes a direct approach to Type 2 ALBP. The effectiveness is tested through application on Gunther problem of 35 tasks with forty five precedence constraints. The task assignment for six stations is computed and it shows competitive performance. The number of fixed stations is varied and corresponding cycle times are computed. The algorithm is also tested on a real industrial problem of 24 tasks. The experimental testing indicates tendency of the proposed algorithm to give effective optimal results.
Study Concerning the Increase of Productivity in Machining by Lapping
Authors: Deaconescu Andrea
Published: September 2015

Systematic achievement of high productivity lapping entails conceiving of a robust working system, insensitive to the action of disturbing factors. The experiments described in this paper were aimed at configuring such a robust machining system in view of maximising productivity. The main purpose of the experiments was to identify an optimum combination of the values of the input quantities of the machining system, such as to achieve its robustness, that is rendering it insensitive to the action of noise factors.
New Methods of Mining Technological System’s Performance Analysis
Authors: Balan George , Andras Iosif , Ilias Nicolae , Radu Sorin Mihai
Published: September 2015

The mining production systems, both for underground and open pit extraction consist mainly in a string of equipment starting with the winning equipment (shearer loader, in case of underground longwall mining or bucket wheel excavator in case of open pit mining), hauling equipment (armored face conveyor in longwall mining or the on-board belt conveyor in case of excavators), main conveying equipment (belt conveyor in both cases), transfer devices, stock pile or bunker feeding equipment. This system of mainly serially connected elements is characterized by the throughput (overall amount of bulk coal respectively overburden rock produced), which is dependent on the functioning state of each involved equipment, and is strongly affected also by the process inherent variability due to the randomness of the involved processes (e.g. the cutting properties of the rock). In order to model and simulate such production systems, some probabilistic methods are applied arising from the artificial intelligence approach, involving unit operations and equipment, as the overall system as a whole, namely the Monte Carlo simulation, neural networks, fuzzy systems, and the Load Strength Interference methods. The results obtained are convergent and offer the opportunity for further developments of their application in the study of mining production systems.