713 research outputs found

    Biosorption of anionic and cationic azo dye onto red macro alga : Determination of the significant variables using resolution V fractional factorial design

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    Naturally inspired biosorbent from macro algae species are favored because of its excellent biosorptive capability and low cost. The present investigation reports the potential of red macro-alga, E. spinosum as a biosorbent to remove both anionic and cationic azo dyes, namely Acid Yellow 17 (AY17) and Methylene Blue (MB) from aqueous solution. A resolution V fractional factorial design (2v5-1) analysis was employed to study the main effects and interaction of variables on the biosorption process. Factorial matrix with five variables; pH (2–12), dosage (0.4–2 g/L), initial concentration (50–200 mg/L), contact time (5–120 min) and temperature (30-50 °C) at two levels were conducted in batch study. Pareto charts and ANOVA (within 95% confidence level) were applied to examine the relationship and significance between independent variables and their interactions. A regression model with R2AY17 = 0.9998 and R2MB = 0.9995 was implemented to fit the experimental data. The results obtained indicated that the most significant variables that affected biosorption process were initial concentration and the dosage of the dyes. Experimental screenings are crucial in optimization studies. The remarkable performance of E. spinosum as biosorbent to absorb both dyes shows a great potential to be implemented for local marine macro alga as an alternative. Resource for biosorption process

    Coupling of DEMO and ARIS: Based on theoretical ground

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    The methodologies ARIS and DEMO combined on a theoretical level, at the Corporate Dienst of Rijkswaterstaat.Electrical Engineering, Mathematics and Computer Scienc

    Round-trip Business Process Driven SOA modelling between ARIS and Cordys

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    Business process modelling is the core activity in Business Process Driven SOA. ARIS is as Business Process Analysis (BPA) tool adequate for analyzing and designing business processes, while the execution and monitoring of these processes is empowered by Cordys as Business Process Management Suite (BPMS). The challenge is to enable iterative round-trip modelling across these two tools. Event-driven Process Chains (EPC) and Business Process Modelling Notation (BPMN) have established themselves as the most used modelling languages in the industry. Coupling ARIS and Cordys involves 1) transforming the high-level business process models in EPC developed in ARIS into executable process models in Cordys BPMN, and 2) ensuring round-trip development by means of interoperability. This thesis proposes a conceptual framework to couple a BPA and BPMS tool for round-trip business process modelling. The framework utilizes concepts from the Model Driven Architecture for structural addressing interoperability and model transformations. Business process models are developed and assessed from high-level, operational and technical viewpoints. Depending on the level of interoperability wished for, different types of model transformations within and between these viewpoints apply. Ensuring interoperability with traceability may allow maintaining the perception on the real world with different viewpoints. The framework is applied on the ARIS and Cordys case. Analyzing and comparing the tools have given insight on type of models, the information for exchange, and where possible coupling points are. Model transformations are defined for EPC and Cordys BPMN models. Results of the framework provide a foundation on how to achieve interoperability between ARIS and Cordys.Computer Science Information ArchitectureElectrical Engineering, Mathematics and Computer Scienc

    The Science Fiction Film

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    This is a chapter in the Science Fiction Handbook that the author has co-edited. The chapter introduces readers to major themes and generic tropes of science fiction in cinema and provides a brief analysis of classic SF films: Metropolis; The Day the Earth Stood Still; 2001: A Space Odyssey; Star Wars; Alien; Blade Runner; The Matri

    Evaluation of photo-fenton degradation of reactive black 5 using response surface method

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    Photo-Fenton degradation of a reactive dyestuff, Reactive Black 5, was investigated in this study. The effects of UV light on Fenton Reagent process and the influence of reagents dosage, UV light intensity and initial dissolved oxygen concentration on photo-Fenton were explored. The experiments were conducted in a 3-L batch-mode reactor and were designed using Response Surface Method. The performance of the systems was assessed based on TOC removal. UV light was found to increase the efficiency of Fenton Reagent process by about 100%, reduce the reaction time by half and lessen the iron requirement by about 85%. Within the range used in the experiments, UV light intensity, and iron and hydrogen peroxide dosages were found to have significant positive influence on the efficiency of the photo-Fenton process. Iron dosage was significant in the early stage, peroxide dosage was significant at the later stage while UV light intensity was significant throughout the reaction period. The initial dissolved oxygen concentration was not a significant factor for photo-Fenton. Depending on the conditions of the reaction, TOC removal of 41.3% to 88.2% was obtained by photo-Fenton oxidation after 30 minutes. Kajian ini menyiasat keupayaan foto-Fenton dalam menguraikan pewarna reaktif, Reactive Black 5. Penilaian dibuat ke atas kesan sinaran UV kepada proses Reagen Fenton dan kesan dos reagen, keamatan sinaran UV dan kepekatan oksigen terlarut awal ke atas kelakunan foto-Fenton. Ujikaji makmal direkabentuk dengan menggunakan kaedah Response Surface dan dijalankan dengan menggunakan reaktor jujukan bersaiz 3 L. Kelakunan sistem dinilai berdasarkan kepada penyingkiran TOC. Sinaran UV didapati meningkatkan keberkesanan proses Reagen Fenton sebanyak 100%, mengurangkan masa tindakbalas kepada separuh dan mengurangkan 85% keperluan ferum. Berdasarkan kepada julat yang digunakan di dalam ujikaji, keamatan sinaran UV dan dos ferum dan hidrogen peroksida didapati memberi kesan positif yang signifikan kepada proses foto-Fenton. Dos ferum memainkan peranan penting di peringkat awal tindakbalas sementara dos peroksida menjadi penting di bahagian akhir tindakbalas. Keamatan sinaran UV memainkan peranan yang penting di semua peringkat tindakbalas. Kepekatan oksigen terlarut awal didapati tidak memainkan peranan yang penting kepada foto-Fenton. Selepas tindakbalas selama 30 minit, pengoksidaan foto-Fenton didapati mampu menyingkirkan TOC sebanyak 41.3% hingga 88.2%, bergantung kepada keadaan ujikaji yang dijalanka

    Cosmopolitanism Now

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    This is the conclusion of the edited collection on Media and Cosmopolitanism. The author brings together the recurring themes, major ideas, arguments and debates that have been running throughout the entire collection. The discussion relates these to contemporary social, political, cultural realities and concludes with suggestions for future developments within cosmopolitnaism studies and their relationship to media studie

    A lost legacy: a critical assessment and catalogue of the illustrated work of Ernest Aris: Alfred Ernest Walter George Aris (22 April, 1882 -1963: children’s author, illustrator and commercial artist

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    Ernest Alfred Walter George Aris FZS, SGA, (1882–1963) was born in Islington and moved to Bradford where he spent his formative years and attained a diploma at the Bradford Technical College of Fine Art in 1900. Aris was a professionally trained commercial artist, author, and prolific illustrator of 170 children’s and natural history books. He also illustrated over 250 books for other authors, including Enid Blyton, Beatrix Potter, and May Byron, as well as contributing to a number of leading periodicals, magazines and newspapers. Aris was not a member of any of the active artists’ clubs or societies and was possibly shunned by his contemporaries and peers, who considered him unoriginal and an unscrupulous opportunist. Volume I of this thesis seeks to examine these suggestions and assesses why Aris’s name, despite his significant output, has remained relatively anonymous and why much of his legacy appears to have been unidentified, overlooked or forgotten. Chapter 1 discusses the historical influences of anthropomorphism on Aris’s style and those of his immediate predecessors. I have categorised Aris’s books into three periods for this appraisal and examined his technical attributes and qualities, together with his trademark features and characteristics, with the purpose of identifying what makes Aris’s creative design instantly recognisable and his output of illustration so distinctive. Chapter 2 discusses Aris’s relationship with the children’s author and illustrator, Beatrix Potter. Aris holds a unique place in history in that he was commissioned by Beatrix Potter to provide illustrations for her book and was the only artist with whom she seriously contemplated a professional working partnership (1916). However, Frederick Warne and Beatrix Potter later accused Aris of plagiarism and of exploiting any opportunity to achieve a commercial advantage. There is an argument to suggest that Aris’s affiliation with Potter and the allegations of plagiarism had a significant impact on his long term reputation and was possibly the reason for adopting the pseudonym Robin A. Hood. Chapter 3 examines the creative scope and features of Aris’s prestigious commercial partnerships. These start from the beginning of his professional career at the turn of the twentieth century, which coincided with the technical development and advancement of the colour picture postcard. Aris was at the forefront of this revolution, designing several series of comic and humorous postcards for leading printers that are now associated with and representative of a bygone era. In 1915 Aris was commissioned to design six tram posters, which were selected by Frank Pick at London Transport, as part of the National Collection of Posters. Pick single handedly revolutionised poster art in Britain and was responsible for establishing the national collection, where these posters now reside and have remained forgotten and out of sight for the last century. In the 1920s the trend for collecting novelty cigarette cards enabled Aris to produce a number of outstanding natural history designs as well as the infamous Frisky series, where his mischievous sense of humour is much evident in his trademark characters. Perhaps Aris’s final and greatest legacy, however, lies in the legendary Cococubs campaign for Bournville Children’s Cocoa, which was described as ‘one of the cleverest publicity schemes of the year.’1 The success of the advertising campaign meant demand outstripped supply of the product, as youngsters eagerly sought the ‘free toy in every tin’ promotional figurines that Aris designed (1934-1936). Volume II of this thesis comprises of a unique catalogue of Aris’s creative output over fifty years and spans a range of commercial fields of art. The catalogue is divided into four parts. Part one consists of Aris’s literary publications, with a detailed bibliographic record and image of the cover of each book that he wrote and illustrated under his own name and pseudonyms, as well as prominent books Aris illustrated for other eminent authors and a compendium list of books Aris illustrated for authors and other publications. Part two is a record of Aris’s commercial work, including the early series of pictorial postcards that he completed for leading quality publishers at the start of his career (1904-1909) and the six pictorial natural history posters, which Aris was commissioned to undertake for the London Transport tram system (1915). Part three comprises of Aris’s collectables and contains the four unique series of cigarette cards that Aris designed for leading tobacco manufacturers (issued 1929-1935). Part four includes a comprehensive description of each of the limited editions and subtle colour variants of the Cococub lead figurines inserted into Bournville Children’s Cocoa (1934-1936). The aim of the thesis is to justify why I believe Aris deserves further merit for his contribution within the field of illustration and commercial artwork. I have sought to highlight the factors that make his contribution and the success of his creative designs within these different fields so significant. 1 The Grocery and the Provision Merchant Journal, November 1934, p. 276

    On The Coupling Of Architectures: Leveraging DEMO Theory Within The ARIS Framework

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    This thesis project has been carried out within the Data and ICT Service Centre of the Directorate?General for Public Works and Water Management (Rijkswaterstaat). The project is aimed at exploring how architectures that are based on the DEMO methodology and the ARIS framework can be consistently interconnected in practice. The architectures that were used are the Dienstverleningsmodellen (DVL) and the Uniforme Primaire Processen (UPP) of Rijkswaterstaat, which are based on DEMO and ARIS respectively. The research culminates in the development of a consistent coupling between these two architectures. The project is defined by the following question: “How can DVL and UPP models be coupled to each other in a way that is consistent?” The following results of the project provide an answer to the research question: - A description of the current state of coupling - A description of the consistent state of coupling - A method to achieve the consistent state of coupling - Guidelines to maintain the consistency of the couplingSoftware TechnologyElectrical Engineering, Mathematics and Computer Scienc

    Business process modelling using the ARIS methodology

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    Šī maģistra darba mērķis ir preču piegādes biznesa procesa apraksts un optimizēšana uzņēmumā ar programmatūras līdzekļa ArisToolset palīdzību. Darbā izklāstīta procesu pieejas būtība organizācijas vadībai, izpētīti biznesa modelēšanas teorētiskie un metodoloģiskie pamati, izskatītas ARIS Toolset kā uzņēmuma biznesa procesu modelēšanas instrumenta iespējas; veikta uzņēmuma finanšu un saimnieciskās darbības analīze; aprakstīta biznesa procesa „Izejvielu pārdošana” aprakstīšanas projekta gaita: izveidoti biznesa procesa „kā ir” modeļi, izstrādāti uzņēmuma darbības optimizācijas pasākumi. Darbs izstrādāts, pamatojoties uz faktiskiem materiāliem. Darba autore apliecina, ka tajā sniegtais aprēķinu un analītiskais materiāls pareizi un objektīvi atspoguļo pētāmā procesa stāvokli, bet visām no literatūras un citiem avotiem izmantotajām teorētiskajām un metodoloģiskajām nostādnēm un koncepcijām sniegtas norādes uz to autoriem. Maģistra darba apjoms ir 83 lpp., 12 att., 10 tab., 28 literatūras avoti, 7 pielikumi Atslēgvārdi: BIZNESA PROCESS, PROCESU PIEEJA, BIZNESA PROCESA MODELĒŠANA, OPTIMIZĀCIJA, REINŽENIERINGS, ARIS, FINANŠU UN SAIMNIECISKĀS DARBĪBAS ANALĪZE, PROJEKTA REALIZĀCIJA, DARBA GRUPA, BIZNESA PROCESA PARAMETRI.The purpose of the given master’s work is to describe and optimize the process of delivery of goods in the company by means of software product ARIS Toolset. In the work the essence of the process method in management is stated, theory and methodology of business-modeling are learned, potentialities of ARIS Toolset as product for business-processes modeling of the company are given; the technique of the financial analysis of the company is stated; the project in description of the process “Sell of raw materials” is stated: models “as is” are given, the activities of optimization in the company are worked out. Work is developed on an actual material. The author of work confirms, that the accounting and analytical material, resulted in master’s work, correctly and objectively reflects a condition of investigated process, and all borrowed of the literature and other sources theoretical and methodological positions and concepts are accompanied by references to their authors. Master’s work: 83 p., 12 fig., 10 tabl., 28 sources, 7 encl. Keywords: BUSINESS-PROCESS, the PROCESS METHOD, MODELING, DESCRIPTION and OPTIMIZATION of the BUSINESS-PROCESS, ARIS, REENGINEERING, the FINANCIAL ANALYSIS, REALIZATION of the PROJECT, CHARACTERISTIC of the BUSINESS-PROCESS, WORKING TEAM

    Introduction to family medicine

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    Primary care (also known as family medicine as a medical speciality in primary care) is the first point of contact that an individual has with health care provision. Primary care doctors are known as family doctors, general practitioners or family physicians. Family medicine is a medical speciality that provides comprehensive and continuous health care for the individual and the whole family. The practise encompasses the biological, clinical aspect and behavioural sciences, whereas the scope covers all ages from womb to tomb, all sexes, all aspects of the organ system and all diseases
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