bluuebunny/crossref_metadata_2025_split huggingface dataset:
Solar Energy Enhanced Oil Recovery: A Case Study for Kuwait
Authors: Avaritsiotis John 
Published: December 2018

Abstract
This paper investigates the performance of a pilot linear Fresnel steam generator, for Enhanced Oil Recovery (EOR), under the climatic conditions of Kuwait. Simulation results are compared to previously published results from a similar pilot installation in Miraah of Oman which delivers 50 tonnes of steam per day.
A desired 7 MWth peak power pilot plant is assumed in this work which will produce 80% quality steam at 110 bar and 300 ° C, matching typical EOR specifications. Simulation performed using System Advisor Model (SAM), developed by NRL, based on historical data of Direct Normal Irradiance (DNI) of Kuwait. Given that the heating and pressurization of the subterranean reservoir typically transpires over a period of many months, EOR process is not sensitive to the timing of steam injection, and thus we can assume no steam injection during the periods with no sun. Linear Fresnel collectors have been assumed, which are like parabolic mirrors. Two more assumptions are worthy of comment. First, the SAM model baseline assumptions included 5% soiling on mirrors and 2% average soiling on the receiver envelope.
In a typical EOR application, to maintain steam injection around the clock, solar steam is injected during the day and steam produced by natural gas is injected at night. If the rate of steam injection is held constant, gas consumption is reduced by up to 25%. By injecting more steam during the day and less at night, gas consumption can be reduced up to 80% without the need for costly thermal storage; the reservoir itself acts as a primary thermal storage medium. The simulation shows that a peak power of 7 MWth can be achieved with an average output of more than 50 tons of steam per month from May to August and 10 tons/month for the rest of the year; a total of 517 ton/year. The simulated system requires a total land area of 5.2 acres and can eliminate 44,698 ton of CO2 emission per year.
To the best of our knowledge, a few studies have been published for Kuwait, which is pursuing a national objective to produce 4 million b/d of oil by the year 2020. This target may be achieved sustainably with heavy oil development using various techniques like unheated-water flooding, hot water flooding, steam flooding, and cyclic steam stimulation. The objective of this study is to investigate the later technique under the local climatic conditions.
The Application of Chemistry to Manage Wellbore Instability While Drilling the Mechanically Weak Burgan Shale Formation and the Vugular Shuaiba Limestone Formation
Authors: Hussein Ali Hussein , Al-Khaja Mohamed Jassem , Al-Menayes Fahad , Al-Haddad Hasan , Malik Abdullah Ahmad , Durge Ashutosh , Dashti Reham , Abdelaziz Rami Mahmoud , Barsoum Victor , Abdul Aleem Bahaa , Samak Mohamed 
Published: December 2018

Abstract
Wellbore instability while drilling mechanically weak, unstable or vugular formations has been a problem for decades. The cost of wellbore instability is a major challenge in achieving safe and economical drilling operations. As drilling operations moved into challenging formations in Kuwait, the operator sought to drill the Burgan shale and Shuaiba limestone formations in one section as opposed to the traditional two sections required to isolate each formation separately. This paper focuses on a class of technology additives used to mitigate the challenges of drilling weak and unstable formations.
One approach for drilling micro-fractured shale and weak sands with vugular limestone is to mitigate the invasion of drilling fluids into the formation. Other approaches include: stabilizing the reactive shale by preventing hydration and swelling, improving the filtercake texture and strength, and sealing natural micro-fractures. Drilling fluid invasion can change the pore pressure, which may trigger wellbore instability problems. Thus, using ultra-low invasion drilling fluids, sealing micro-fractures and maximizing shale inhibition are key components for mitigating wellbore instability. Field data for the wells using the ultra-low invasion additives and shale stabilizers is presented and compared with previous wells drilled across Burgan and Shuaiba formations in Kuwait.
The field data demonstrates the successful application of these additives to meet challenging key performance indicators (KPI) when drilling the Burgan shale and the vugular Shuaiba limestone in the same hole section. Using the ultra-low invasion additives along with shale inhibitors and borehole stabilizers, resulted in successful drilling operations with no differential sticking, torque-and-drag issues, sloughing, or tight hole problems as compared with usual incidences of differential sticking, pack-offs, and tight hole in other wells within the area. Using those additives also eliminated the need for a higher density fluid to control micro-fractured and tectonically stressed shales. The addition of the additive combination did not affect the rheological profile of the drilling fluid. Meeting these goals through the use of chemical additives in the drilling fluid reduced both non-productive time and formation damage in a cost-effective manner.
Data from this paper specifically addresses a chemical solution for drilling the Burgan shale formation together with vugular Shuaiba limestone in a major Middle East producing field. However, the technique of mitigating wellbore instability by using this combination of chemical additives is fundamental to safe and economical drilling operations for any depleted, weak or micro-fractured formations globally.
Solving 12-1/4-in. Directional Drilling Challenges by Minimizing Stick/Slip Vibrations in North Kuwait
Authors: Beheiry Karim , Al Mulaifi Mohammed , Sekhri Anish , Farhi Nadir , Nouh Walid , Abdel Naby Ahmed , Marafi Abdullah , Shatta Atef , Al-Ali Hussain 
Published: December 2018

Abstract
The 12-1/4-in. directional application is one of the most challenging applications in North Kuwait. The section requires drilling from the Mutriba (Santonian) to Burgan (Albina) formations through highly interbedded, high-compressive-strength carbonates (limestone and dolomite), sandstones, and shales. In recent years, Kuwait Oil Company (KOC) has tested many different bit designs in an attempt to minimize stick/slip vibrations and maximize the rate of penetration (ROP). This paper presents the technology used to nearly eliminate stick/slip vibrations, leading to a field record (and a consistent performance) for this application, as well as the process used to develop the technology.
The interval was drilled using a rotary steerable system (RSS) to maximize wellbore quality and to provide consistent build-up rates (BUR) required. Parameters run in this application are often limited because stick/slip becomes uncontrollable when transitioning through the many formation types. In addition, reactive and stressed caving shales are regularly observed in the Ahmadi and Wara formations drilled during the interval. Special care is needed to mitigate these drilling challenges and to successfully drill the interval with low stick/slip vibrations and high ROP.
Using proprietary state-of-the-art design and analysis technologies, a new polycrystalline diamond compact (PDC) bit was designed for use specifically with RSS tools to minimize the vibrations. The solution required a thorough offset analysis before the interval that was presented using the design process. The design process enabled the presentation of a driller's roadmap to be used in conjunction with the new bit to enable a benchmark ROP to be achieved.
The use of the newly designed PDC bit produced minimal torsional vibrations, enabling a 62% increase in ROP over the field average. This increased ROP resulted in a savings of USD 90,000, reducing the cost per foot by 33%, as compared to the field average. The bit also came out in excellent condition, enabling future use in similar applications for KOC.
Chemical kinetics and particle size effects of activated carbon for free chlorine removal from drinking water
Authors: Meng Fanke , Li Guoping , Zhang Binbin , Guo Jinbin 
Published: December 2018

Abstract
Activated carbon is an economic material to grab free chlorine in drinking water to reduce potential health risks. In this research, chemical kinetic reaction of the activated carbon for free chlorine removal was studied, which exhibited the first order kinetic reaction performance. A relationship between the rate of chlorinated water flowing through the activated carbon, and the free chlorine (ClO−) concentrations before and after the reduction by activated carbon was obtained. The logarithm of the free chlorine concentration (lnC) was linearly related to the reciprocal of the volume flow rate (1/v). The slope was dependant on the kinetic constant of the activated carbon dechlorination reaction. This research is beneficial for the scientists and engineers to study the mechanism of the chemical kinetic reaction of the free chlorine removal by activated carbon and design activated carbon-loaded water purification reactors.
Coagulant dose as an operating parameter in a solid contact clarifier
Authors: Illangasinghe W. , Ratnayaka N. , Manatunge J. , Jayasuriya N. 
Published: December 2018

Abstract
The objective of this study was to determine the applicability of the laboratory flocculation test (Jar Test) for a solid contact clarifier. Cohesivity, a parameter characterizing the sludge blanket can be established by determining the Sludge Cohesion Coefficient (SCC) by conducting a Sludge Cohesion Test (SCT). A series of laboratory tests were performed using the Jar Test and SCT. Considering the large number of variable parameters involved with natural raw water, sludge samples were prepared using synthetic raw water with varying turbidity and coagulant dose combinations. A comparison was made between the optimum coagulant dose obtained using the two tests. Highest SCC observed at the optimum coagulant dose was within the range of 0.6–3.3 m/hr. Low SCC values indicate a light and fragile sludge blanket whereas high SCC values indicate a quick settling consistent blanket. With increasing raw water turbidity, the optimum coagulant dose given by SCT is lower than that of the Jar Test. Hence, at higher raw water turbidity occurrences, it may be possible to operate the upward flow solid contact clarifiers with lower coagulant dose. A significant quadratic relationship is observed between the optimum coagulation doses with R2 = 0.9 and α &lt; 0.05.
Alumina as environmentally stable adsorbent for the removal of diresul black dye from waste water
Authors: Asim Tayyaba , Mamoona  , Tahir Arifa , Nisar Numrah , Ali Arslan , Sheikh Aafia 
Published: December 2018

Abstract
Various adsorbents for the removal of dyes from waste water may or may not be stable, resulting in the desorption of adsorbed dyes with slight changes in physical conditions. To avoid this problem, environmentally stable adsorbent such as activated aluminum oxide or alumina has been used for the removal of Diresul Black, which is a dye used in the textile processing industry. Fourier-transform infrared spectroscopy confirms the non-tetrahedral framework of alumina. The efficiency of alumina via adsorption implies that 1 g alumina having the Brunauer–Emmett–Telle surface area of 2.65 ± 0.25 m2/g is enough to achieve up to 85% removal of concentrated dye solution in just 20 minutes. Adsorption energy as well as adsorption capacity is calculated by different adsorption isotherms. The sorption energy E turns out to be 19.3 KJ/mol. The thermodynamic studies show that the value of ΔH for the adsorption process is −976.5 J/mol while that of ΔS is −4.748 J/mol/K. Desorption studies show that the dye remains in its adsorbed form over aluminum oxide up to a pH of 2. Various ions present in the matrix interfere with the adsorption process, however none can decrease the adsorption below 65%.
Removal of water hardness using zeolite synthesized from Ethiopian kaolin by hydrothermal method
Authors: Aragaw Tadele Assefa , Ayalew Adane Adugna 
Published: December 2018

Abstract
The use of low cost materials in zeolite synthesis becomes an area of important interest in water softening. This research is aimed to utilize kaolin for zeolite synthesis with hydrothermal method. Mechanical, thermal chemical treatments of raw kaolin were used for zeolite synthesis. Fourier Transform Infrared Spectrometry (FTIR), AAS, XRD, surface area (BET), differential scanning calorimetry and TGA were used to characterize kaolin and zeolite and UV–VIS/spectrometer were used for adsorption capacity of ion exchange. Effect of contact time, pH solution and temperature of the solution were studied for batch experiments. XRD values indicated that the prepared material is showed as fully crystalline and primarily amorphous. Before and after hardness removal sample transmittance percentage intensity showed a wide range of difference. From this study, it can be deduced that Zeolite can be used as a low cost water softening agent. At room temperature, the residue is well with calcium and badly with magnesium, whereas affinity toward Mg ions increases to acceptable levels at 60 °C. The cation exchange capacity of zeolite was found to be dependent on contact time. The batch experiments of removing Ca2+ and Mg2+ show that the adsorption capacity of zeolite in calcium ion is higher affinity than magnesium ion.
Psychotraumatology of Images in Gender Dysphoria
Authors: Settineri Salvatore , Frisone Fabio , Merlo Emanuele Maria 
Published: December 2018

Background:The study proposes a psychodynamic analysis of the traumatic role of mental images, that can be expressed by many conditions; in phenomenology, the psychic relationship is meant as the relationship between subject and object. The analysis is aimed at understanding how representations are relevant.Objective:Representations are distinguished as the possibility of intrinsic trauma and as inherently deferred in the conflict between sexual-biological identity and gender-psychological identity; our work aims to highlight how internal images affect adaptation processes.Method:The analysis involves the study of 10 Rorschach protocols of Gender Dysphoria subjects in Male to Female transition; the protocols are analyzed through the studies of N. Raush de Traubenberg, with reference to the Self and Body; a psycho-traumatological and phenomenological analysis of imaginal experiences will be proposed.Results:From the analysis emerges the presence of Self and Body representations affected by a partial and fragmentary prevalence of contents, the presence of psychotraumatic phenomena associated to the processes of introjection and identification of mental representations.Conclusion:The knowledge of the presence of affected representations and psycho-traumatological outcomes would be useful for a psychodiagnostic and psychotherapeutic purpose, intended for the implementation of the adaptation process.
Psicanálise e memória
Authors: Mendonça Antônio Sérgio 
Published: December 2018

Analisando as mais representativas concepções não-freudianas de memória, desde a concepção psicológica de Henri Bergson (1896), o estudo detém-se na concepção freudiana esboçada desde o fim do século XIX. Reflete sobretudo sobre as duas principais consequências dessa última abordagem, representada por Lacan e pelos autores que renovaram a questão da cientificidade histórica para além da Ciência Lógica de Hegel e do
materialismo histórico marxista.
A arquivística no Brasil vista pelo olhar do outro, o estrangeiro
Authors: Lopes Luiz Carlos 
Published: December 2018

Este artigo comenta o ponto de vista de alguns estrangeiros e brasileiros sobre problemas passados e presentes dos arquivos e da arquivística pensada e praticada no Brasil. Examina alguns
textos produzidos nas últimas quatro décadas por Theodor R. Schellemberg, Henri Boullier de Branche, Charles Kecskeméti, Michel Duchein, José Honóno Rodrigues etc. Discute os problemas
brasileiros na formulação de uma política e de uma prática arquivística de amplitude nacional Põe em evidência o problema da alteridade, seus limites e vantagens, no que tange às contribuições possíveis neste domínio.
Estratégias de mídia no cenário global
Authors: Moraes Dênis De 
Published: December 2018

O quadro de referências da vida contemporânea vem se
alterando bruscamente no compasso da hipervelocidade
propiciada pelo que Gabriel García Márquez recentemente
qualificou de "tecnologias disparadas". A transmissão imediata
de dados, imagens e vozes, por meio de avançados dispositivos
e sistemas tecnológicos, suplanta toda e qualquer fronteira,
todo e qualquer limite (...).
A política na TV: o horário eleitoral da eleição presidencial de 1994
Authors: Porto Mauro Pereira , Guazina Liziane Soares 
Published: December 2018

A propaganda política dos candidatos e partidos na televisão têm
sido objeto de diversos estudos, muitos dos quais a definem como um elemento importante do processo político. Desde o estudo "clássico" sobre a eleição presidencial de 1972 nos Estados Unidos (Patterson & McClure. 1976). tem predominado a noção de que a propaganda política contribui muito mais para a compreensão do processo político e eleitoral do que os telejornais.
Duas notas sobre formação do imaginário estético-cultural
Authors: Reis Ronaldo 
Published: December 2018

No apagar das luzes do século XVIII, o solipsismo - esteio moral da Razão Iluminista e fonte inspiradora da liberdade que movia o
humanismo burguês - cede sob o impacto do Terror que sucede a vitoriosa Revolução Francesa. E para o horror dos filósofos humanistas, nenhum ideal Iluminista se mostraria suficiente para conter os excessos cometidos em nome da liberdade.
Os impérios de mídia no estágio da oligopolização
Authors: Moraes Dênis De 
Published: December 2018

A formação de oligopólios constitui o eixo preponderante do atual modelo organizacional das corporações de mídia e entretenimento. As empresas com especializações únicas definham. Elas correspondiam a um outro espaço-tempo, em que as tecnologias não encurtavam mapas, calendários e fusos horários; os fluxos de informações eram infinitamente
menos convulsivos; e não vigorava o mandamento competitivo
de gerar demandas em mercados de abrangência ilimitada. O equilíbrio de forças alterou-se por completo. Esta é a era dos conglomerados multimídias, estruturados para exercer hegemonia em todas as pontas da revolução digital.
Raízes do Brasil: do silêncio à permanência
Authors: Pinheiro Alceste 
Published: December 2018

Outubro de 1936. Urna gráfica de São Paulo, contratada por uma das
mais importantes editoras brasileiras, a José Olyrnpio, do Rio de Janeiro,
encerra a impressão de um livro de 176 páginas. A expectativa é de
que será uma obra importante, que marcará uma fase da história brasileira.
Tanto que é escolhida por um escritor conceituado, de sucesso e
respeitado, Gilberto Freyre, para abrir a coleção Documentos Brasileiros,
que ojá consagrado autor de Casa grande&senzala dirigia. Seu autor,
um jovem, mas já experiente, jornalista muito conhecido, que fora
correspondente de O ,Jornal na Alemanha: Sérgio Buarque de Holanda.
Portanto, o livro estava destinado ao sucesso
Obliscência: Por uma Teoria Pós-Moderna da Memória e do Esquecimento
Authors: Felinto Erick 
Published: December 2018

A pós-modernidade alçou o esquecimento à condição de arte. Cultura cia efêmero, do desaparecimento, o pós-moderno necessita de uma teoria da memória capaz de fundamentar a
centralidade do esquecimento. Este artigo expõe e comenta as teorias de Geoffiey Sonnaband como modelo para uma arte pós-moderna do oblívio.
Identidades coletivas: negociando novos sentidos, politizando as diferenças
Authors: Maia Rousiley C. M. 
Published: December 2018

O interesse central deste artigo é examinar o modo pelo qual a mídia, de uma forma generalizada de comunicação, se conecta com o projeto de identidade coletiva, seguindo a premissa pragmática básica de que as identidades são formadas de
processos comunicativos e de interação direta. Discuto que a
perspectiva encetada pelos teóricos da reflexividade confere uma renovada atenção ao papel que OS meios de comunicação desempenham na constituição e na renovação do repertório cultural de coletividade particulares. Esta abordagem recusa uma visão essencialista dos diferentes tipos de comunidades e contempla o modo pelo qual as especificidades culturais de grupos distintos se tornam instrumentos para a política de identidade.
Chanchada e a Estética do Lixo
Authors: Vieira João Luiz 
Published: December 2018

Avaliação crítica do significado de algumas estruturas retóricas
retrabalhadas da chanchada a partir de dois clássicos do cinema
brasileiro (pós) moderno, Macunaíma e O bandido da luz vermelha. A permanente influência desses dois textos fílmicos destaca processos de carnavalização e paródia, marcas estilísticas da chamada estética do lixo em sintonia simultânea com o popular e a vanguarda.
Crônicas de unia época acidentada: dois livros de Paul Virilio
Authors: Sibilia Paula 
Published: December 2018

Resenha dos livros:
VIRILIO, P. A bomba informáica. Estação Liberdade, São
Paulo, 1999. (Tradução: Luciano Vieira Machado; 144 páginas).
VIRILIO, P. Estratégia da decepção. Estação Liberdade, São
Paulo, 2000. (Tradução: Luciano Vieira Machado; 96 páginas).
Memória e identidade Social
Authors: Enne Ana 
Published: December 2018

Nas sociedades da escrita, histórias de vida recontadas através de biografias nascidas na tradição oral, continuaram a servir como modelo para a produção cultural. Hoje, as tecnologias digitais potencializam o espaço da biografia na cultura contemporânea. Este artigo busca refletir sobre as novas tecnologias de comunicação, a escrita e a biografia como
extensões da memória e instrumentos de transmissão de saber.
Do Napster ao Gnutella ao projeto Freenet: O esenvolvimento cooperativo de softare ' coma exemplo de novas relações com as ferramentas semióticas trazidas pelo ambiente computacional
Authors: Vicente André 
Published: December 2018

O Projeto Freenet aparecerá, aqui, como referência para pensar
algumas das questões surgidas com a crescente utilização do ambiente computacional para a comunicação. Enfocaremos algumas consequências advindas da flexibilidade e replicabilidade da constituição parcialmente simbólica deste ambiente. Principalmente novas possibilidades de relação com os meios de comunicação dadas por conceitos como o de código aberto.
Do oral ao hipertextual: a biografia na produção cultural contemporânea
Authors: Siqueira Denise Da Costa Oliveira 
Published: December 2018

Nas sociedades da escrita, histórias de vida recontadas através de biografias nascidas na tradição oral, continuaram a servir como modelo para a produção cultural. Hoje, as tecnologias digitais potencializam o espaço da biografia na cultura contemporânea. Este artigo busca refletir sobre as novas tecnologias de comunicação, a escrita e a biografia como
extensões da memória e instrumentos de transmissão de saber
O cinema de Quentin Tarantino e suas três principais formas de representação: as cenas do cotidiano, os momentos exploitation e o jogo num cinema de gênero paródico
Authors: Baptista Mauro 
Published: December 2018

Este artigo trata das três principais formas de representação do
cinema de Tarantino identificadas pela análise, que o autor nomeia como cenas do cotidiano, momentos exploitation e jogo. O artigo trata também da forma como o cineasta lida com o cinema do passado, utilizando a intertextual idade para criar um cinema de crime pós-moderno instigante.