bluuebunny/crossref_metadata_2025_split huggingface dataset:
Thermodynamic analysis on an instantaneous water heating system of shower wastewater source heat pump
Authors: Wu Yuguo , Jiang Yake , Gao Bo , Liu Zhigang , Liu Jing 
Published: April 2017

Abstract
Water reuse and desalination systems are energy intensive processes, and their increasing use is leading energy consumption within water systems to be an increasingly important issue. Shower wastewater contains large amounts of heat, so there is an opportunity to recover energy from shower water to offset energy consumption elsewhere in water systems. This paper found ways to increase the output of hot water and lower the energy consumption by establishing a thermodynamic model of an instantaneous wastewater source heat pump. The system proved to be very effective, the heating COP (coefficient of performance) can reach 3.3 even in the winter. Under the conditions of limited heat transfer area, reducing the suction pressure of a compressor is a more feasible way to increase the hot water output to meet the needs of users rather than increasing the discharge pressure. Besides, increasing the heat transfer area of the evaporator is a more effective option. When the heat transfer area of evaporator varies from 0.5 to 1.0 square meters, a notable change is that the heating COP increases from 3.283 to 3.936. The heating COP in a system with a recuperator can reach 5.672, almost double that compared to the original systems.
Optimized biological nitrogen removal of high-strength ammonium wastewater by activated sludge modeling
Authors: Elawwad Abdelsalam 
Published: April 2017

Abstract
Wastewater containing high ammonium concentrations is produced from various industrial activities. In this study, the author used a complex activated sludge model, improved by utilizing BioWin© (EnviroSim, Hamilton, Canada) simulation software, to gain understanding of the problem of instability in biological nitrogen removal (BNR). Specifically, the study focused on BNR in an industrial wastewater treatment plant that receives high-strength ammonium wastewater. Using the data obtained from a nine-day sampling campaign and routinely measured data, the model was successfully calibrated and validated, with modifications to the sensitive stoichiometric and kinetic parameters. Subsequently, the calibrated model was employed to study various operating conditions in order to optimize the BNR. These operating conditions include alkalinity addition, sludge retention time, and the COD/N ratio. The addition of a stripping step and modifications to the configuration of the aerators are suggested by the author to increase the COD/N ratio and therefore enhance denitrification. It was found that the calibrated model could successfully represent and optimize the treatment of the high-strength ammonium wastewater.
Assessment of Data-Driven, Machine Learning Techniques for Machinery Prognostics of Offshore Assets
Authors: Lu Ping , Liu Haitao , Serratella Christopher , Wang Xiaozhi 
Published: April 2017

AbstractAccurate prediction of machinery failure is a challenging and important task for the offshore industry. Early diagnosis and prognosis of machinery failure has become a necessity to drive high levels of safety and performance in oil and gas operations. Prognostics enabled by data-driven machine learning techniques offers new insights into the health and performance of machinery and thereby improves operational efficiency. Advances in this topic are important because of the challenging nature of prognostics and the large degree of uncertainty that is associated. In this work, we demonstrate a practical approach to build and perform robust predictive machine learning models that are capable of detecting critical machinery failure early. In addition, a review of recent state-of-art machine learning approaches employed in modeling of machinery failure prediction is presented. Predictive models discussed here are based on various supervised machine learning techniques as well as on different input features. A variety of these newer algorithms include baggings, boosting, support vector machines, ramdon forest, etc., all of which have been widely applied in predictive models. Although it is evident that machine learning methods can improve our understanding of failure progression, appropriate validation schemes are necessary to evaluate machine learning models to assist in effective and accurate decision making. Therefore, we illustrate different levels of evaluation methodologies that can be trusted for these methods to be considered in the everyday operational practice. The machine learning models mentioned in this manuscript is then applied to a case of bearing failure on wind turbine gearbox. A machine learning model by utilizing XGBoost is proposed for prediction of remaining useful life with improved accuracy. This paper could also serve as a guidline to assess machine learning data analytic methods for prognostics relevant to common machinery types on offshore assets.
Stones Development: Turritella FPSO - Design and Fabrication of the World's Deepest Producing Unit
Authors: Moore Blake , Easton Andrew , Cabrera Jonathan , Webb Carl , George Babu 
Published: April 2017

The Stones Project is Shell Offshore Inc.'s ("Shell") play opener discovery in the emerging Lower Tertiary trend in the Gulf of Mexico ultra-deep water (9,500 ft. water depth). To address the step wise development of the Stones field, Shell selected a floating production, storage and offloading unit ("FPSO") for the floating production system. The Turritella FPSO is the deepest floating production system in the world and presented many challenges to successful execution of the surface host facilities.
New Technology (Deep-water disconnectable buoy accommodating Steel Lazy Wave Risers)
New ways of working (minimum specification focus on technical process safety aspects)
Regulatory (2nd FPSO in the GOM)
This paper will address key design elements and choices made in the design, as well as providing a summary of the FPSO Turritella fabrication, transportation, installation and startup.
The Turritella FPSO was executed under an Engineering Procurement and Construction (EPC) contract with SBM Offshore Inc. which required a new way of working for Shell's typical Deepwater Gulf of Mexico ("GOM") delivery team. With a focus on safety, quality, and planning, the FPSO was successfully delivered and commenced production in September 2016.
Assessment of Subsea Pipelines Crossing Seismic Fault
Authors: Umid Azimov P. E. , Ali Sari P. E. , Amir Arablouei P. E. 
Published: April 2017

AbstractOne of the causes of hazardous substance leak from the offshore pipelines can be attributed to potential pipeline rupture due to seismic fault movement. Some of the consequences of the ruptured pipeline due to fault movement include significant environmental damage, costs associated with clean up and asset loss, and damage to reputation of the operator. Objective of this study was to review approaches to estimate the response of subsea pipelines to fault movement during a seismic event and to compare existing methodologies.When subjected to seismic fault movement, pipelines/umbilicals undergo strains due to bending and axial tensile or compressive force (depending on the fault type). Under normal fault rupture, for example, the pipe failure mechanism, particularly for thick wall pipe (low D/t value) would likely be tensile rupture since the largest pipe strains are tensile in this case. For thin wall pipe (high D/t value), wrinkling may be the governing failure mechanism. There are two modeling approaches available to determine the response of the pipelines subjected to fault movement: 1) analytical approach and 2) finite element modeling approach. In analytical approach, the tensile strains developed in the pipe is estimated by predicting the deformed shape of the pipeline and the total elongation of the pipeline.From the comparison of the analytical approach and the finite element analysis, the results show that although analytical approach is convenient to use, it has significant limitations as such that it is not able to capture or account for buckling (wrinkling) where the pipelines are subjected to the compression forces due to the fault movement, the effect of soil pressure, internal fluid pressure and etc. A better alternative to analytical approach is the finite element modeling approach where a pipeline or umbilical is explicitly modeled in its entirety and full dynamic simulation is performed considering large displacements, soil-structure interaction, contact, pipe internal pressure, strain rate effects and etc.This paper discusses and quantifies effects of the factors affecting the performance of the pipelines subjected to seismic fault movement. Furthermore, the paper presents critical factors that can be optimized in order to enhance the performance of pipelines. Finally, the mitigation recommendations are presented that can improve the capability of the pipeline to sustain differential movement along the fault without developing a leak source to contaminate the environment.
Cutting Edge: A Dual TLR2 and TLR7 Ligand Induces Highly Potent Humoral and Cell-Mediated Immune Responses
Authors: Gutjahr Alice , Papagno Laura , Nicoli Francesco , Lamoureux Alain , Vernejoul Fabienne , Lioux Thierry , Gostick Emma , Price David A. , Tiraby Gérard , Perouzel Eric , Appay Victor , Verrier Bernard , Paul Stéphane 
Published: April 2017

Abstract
TLR agonists are currently being developed and tested as adjuvants in various formulations to optimize the immunogenicity and efficacy of vaccines. The aim of this study was to evaluate the immunostimulatory properties of a novel compound incorporating covalently linked moieties designed to stimulate both TLR2 and TLR7. This dual TLR2/TLR7 agonist induced the maturation of dendritic cells and primed substantial populations of cytolytic and highly polyfunctional effector CD8+ T cells in vitro, and safely potentiated the immunogenic properties of a nanoparticulate Ag in vivo, eliciting humoral responses with a balanced TH1/TH2 profile in mice. Collectively, these data reveal the potential utility of chimeric adjuvants with synergistic activities mediated via TLRs.
C1q-Dependent Dendritic Cell Cross-Presentation of In Vivo–Formed Antigen–Antibody Complexes
Authors: Ho Nataschja I. , Camps Marcel G. M. , de Haas Edwin F. E. , Trouw Leendert A. , Verbeek J. Sjef , Ossendorp Ferry 
Published: April 2017

Abstract
Dendritic cells (DCs) are specialized in Ag engulfment via a wide variety of uptake receptors on their cell surface. In the present study we investigated Ag uptake and presentation of in vivo–formed Ag–Ab complexes by i.v. injecting mice with Ag-specific Abs followed by the cognate Ag. We show by this natural Ab-mediated Ag targeting system that uptake by splenic APC subsets is severely hampered in mice lacking complement factor C1q (C1qa−/−). Moreover, no detectable Ag cross-presentation by CD8α+ DCs from C1qa−/− mice was found. On the contrary, Ag uptake was not hampered by APCs in FcγRI/II/III/IV-deficient (FcγR quadruple−/−) mice, and the cross-presentation ability of CD8α+ DCs was not affected. In conclusion, we show that C1q rather than FcγRs controls the Ab-mediated Ag uptake and its presentation by spleen APC subsets to T cells.
Bacterial Siderophores Hijack Neutrophil Functions
Authors: Saha Piu , Yeoh Beng San , Olvera Rodrigo A. , Xiao Xia , Singh Vishal , Awasthi Deepika , Subramanian Bhagawat C. , Chen Qiuyan , Dikshit Madhu , Wang Yanming , Parent Carole A. , Vijay-Kumar Matam 
Published: April 2017

Abstract
Neutrophils are the primary immune cells that respond to inflammation and combat microbial transgression. To thrive, the bacteria residing in their mammalian host have to withstand the antibactericidal responses of neutrophils. We report that enterobactin (Ent), a catecholate siderophore expressed by Escherichia coli, inhibited PMA-induced generation of reactive oxygen species (ROS) and neutrophil extracellular traps (NETs) in mouse and human neutrophils. Ent also impaired the degranulation of primary granules and inhibited phagocytosis and bactericidal activity of neutrophils, without affecting their migration and chemotaxis. Molecular analysis revealed that Ent can chelate intracellular labile iron that is required for neutrophil oxidative responses. Other siderophores (pyoverdine, ferrichrome, deferoxamine) likewise inhibited ROS and NETs in neutrophils, thus indicating that the chelation of iron may largely explain their inhibitory effects. To counter iron theft by Ent, neutrophils rely on the siderophore-binding protein lipocalin 2 (Lcn2) in a “tug-of-war” for iron. The inhibition of neutrophil ROS and NETs by Ent was augmented in Lcn2-deficient neutrophils compared with wild-type neutrophils but was rescued by the exogenous addition of recombinant Lcn2. Taken together, our findings illustrate the novel concept that microbial siderophore’s iron-scavenging property may serve as an antiradical defense system that neutralizes the immune functions of neutrophils.
The Justification of Basic Rights
Authors: Newey Glen 
Published: April 2017

The Justification of Basic Rights. A Response to Forst
This paper responds to Rainer Forst’s article ‘The Justification of Basic Rights’. I argue that Forst's main thesis is difficult to pin down, partly because it is formulated in significantly distinct ways at numerous points. I offer a possible formulation of the argument but note that this encapsulates a fallacy; I further argue that his inference of the basic rights seems to imply an over-moralisation of social life and that his argument does not distinguish rights with discretionary and non-discretionary content. Then I query Forst’s claim that a right to justification is a condition of engaging in justificatory discourse. This leads to the conclusion that what goes into the process of justification, including who figures in the discursive community, are irreducibly political questions, whose answers cannot be convincingly specified antecedently by a form of moral legislation. I argue that actual discursive processes allow for considerably more contingency and contextual variability than Forst’s construction acknowledges. This extends, as I suggest in conclusion, to the idea that content can be specified via the Kantian notion that acceptability requires the ‘containment’ of an actor's ends by another, such as an affected party.
Programa de atenção a alunos precoces com comportamento de superdotação: identificação e proposta de enriquecimento musical
Authors: Koga Fabiana Oliveira , Chacon Miguel Claudio Moriel 
Published: April 2017

O presente artigo tem por objetivo apresentar o processo de identificação musical e a proposta de enriquecimento musical que orientaram os trabalhos desenvolvidos pela oficina de música do Programa d Atenção a alunos Precoces com Comportamento de Superdotação da Faculdade de Filosofia e Ciências da Universidade Estadual Paulista - UNESP campus de Marília/SP, que acontece uma ves por semana matutino e vespertino. Por meio de testes psicométricos Primary Measures of music Audition (PMMA) (GORDON, 1986a), Intermediate Measures of Music Audition (IMMA) (GORDON, 1986b) e da analíse estatistica (Wilcoxon) pretende-se apresentar o processo de identificação musical que revelará os estudantes do PAPCS que apresentam precocidade e comportamento de superdotação musical e, a partir do modelo de enriquecimento, segundo Renzulli (2004), atrelado as metodologias da área da Educação Musical, pretende-se apresentar a proposta de enriquecimento musical que embasou os trabalhos da oficina de música entre 2014 e 2015 no PAPCS, com o objetivo de atender todas as crianças identificadas. Ressalta-se que este trabalho é parte de uma pesquisa maior.
Estudo ecológico da região de Itamaracá, (Pernambuco-Brasil). XXVI. Clorofila "a" e material em suspensão no estuário do rio Botafogo.
Authors: PASSAVANTE José Zanon De Oliveira , KOENING Maria Luise 
Published: April 2017

No estuário do Rio Botafogo (Lat. 27049'S; Long.34050'W), vem sendo realizada uma serie de estudos geológicos, hidrológicos e biológicos , com fins de se determinar a potencial idade pesqueira e a possibilidade de implantação de projetos de aqüicultura no referido estuário e áreas adjacentes. As variações anuais docoeficiente de extinção de luz, disco de Secchi; temperatura, material em suspensão e clorofila-a são apresentadas. Os valores de clorofila-a, ao longo do estuário apresentou-se homogeneo, com uma media superior a 6 mg/m3. Pelos seus altos valores, a região estudada pode ser considerada suficientemente eutrófica com amplas possibilidades para sustentar uma elevada produção secundária. '
Shark attacks in Pernambuco, Brazil: analysis of bather’s perceptions and environmental factors.
Authors: LIBERAL Carolina Nunes , SANTOS Geanne Karla Novais , DEMÉTRIO Kelaine De miranda , MORIMURA Michelle Midori , VASCONCELOS Simão Dias 
Published: April 2017

O litoral de Pernambuco, no Nordeste do Brasil, detém o recorde mundial de ataques fatais de tubarões, com 17 mortes em 46 ataques, entre 1992 e 2004. Este estudo visou investigar o nível de conhecimento da população local sobre as causas destes incidentes, bem como das espécies envolvidas; e detectar mudanças comportamentais nos banhistas causadas pelos ataques. Também se propõe a relacionar fatores ambientais locais que possam estar ligados ao aumento no número de incidentes. Para isto, foram entrevistados 355 banhistas na Praia de Piedade, Pernambuco, Brasil, entre julho e agosto de 2004. Foi observado um baixo nível de conhecimento sobre as causas dos ataques e as espécies envolvidas, sendo a televisão (90%) a fonte de informação mais freqüente sobre o tema. A freqüência de entrada dos banhistas no mar foi reduzida em 71% após terem conhecimento dos ataques. Apesar do medo generalizado detectado entre os banhistas, a maioria se posicionou contrária à matança dos tubarões, e defendeu campanhas de educação ambiental mais agressivas para manter a população informada e diminuir o problema. Palavras-chave: tubarão tigre, tubarão cabeça-chata, Carcharhinus leucas, Galeocerdo cuvier, percepção pública, Praia de Piedade, educação ambiental.
Educação ambiental como instrumento de gestão comunitária de ecossistemas manguezais do canal de Santa Cruz (PE, Brasil)
Authors: PARANAGUÁ Maryse Nogueira , ALMEIDA Viviane Lúcia dos Santos , MELO JÚNIOR Mauro de , ALVES Marcos Souto , BARROS Henrique Monteiro de 
Published: April 2017

A prática da educação ambiental é ainda incipiente, apesar de ser um importante instrumento mobilizador dos vários segmentos da sociedade. Este trabalho apresenta uma síntese das experiências realizadas nos manguezais do Canal de Santa Cruz, Pernambuco - Brasil, objetivando a formação de competências locais para a avaliação e monitoramento das condições ambientais de ecossistemas costeiros que constituem a base de seu sustento tradicional. Foram oferecidas oficinas de transferência de conhecimento aos filhos de pescadores provenientes de comunidades carentes próximas aos manguezais da região, possibilitando um contato direto dos grupos locais com o conhecimento formal transmitido. O objetivo geral destes programas foi formar guias ambientais para multiplicação dos conhecimentos. Destacaram-se entre as atividades realizadas: confecção de cartilhas didáticas; produção de caixas zoológicas com ênfase às espécies de importância econômica para a região; criação de histórias em quadrinhos com temas trabalhados em sala de aula; visitas ao campo e coleta didática de organismos. Secundariamente, realizou-se a introdução de viveiros de mudas de mangue-vermelho Rhizophora mangle L. em habitações localizadas em áreas de manguezal. Aliando teoria e prática, permitiu-se que os alunos desenvolvessem uma melhor compreensão da dinâmica do ecossistema manguezal, seu papel ecológico e a importância de sua conservação, a partir de seus conhecimentos prévios. Ao término das atividades, observamos que os jovens assimilaram grande parte dos conhecimentos transmitidos, despertando em cada um a preocupação pela conservação e preservação dos recursos dos manguezais da região. Palavras-chave: Comunidades tradicionais, educação ambiental, manguezal, Nordeste do Brasil.
Nota sobre as Relações Existentes entre as Medidas de Comprimento e Peso das lagostas Panulirus argus (Latreille) e P laevicauda (Latreille) (Crustacea: Decapoda).
Authors: COELHO Petrônio Alves , MOURA Solonçy J. C. de 
Published: April 2017

Apresentamos nesta nota as relações encontradas entre as medidas de peso e comprimento das lagostas Panulirus argus (Latreille) e P. laevicauda (Latreille), objeto de pesca comercial no litoral do Estado de Pernambuco, Brasil.
MESOZOOPLÂNCTON DO ESTUÁRIO DO RIO DOS PASSOS, PERNAMBUCO, BRASIL
Authors: FIGUEIRÊDO Lucas Guedes Pereira , FIDELIS Valdylene Tavares Pessoa , De AQUINO Eveline Pinheiro , NEUMANN-LEITÃO Sigrid , PASSAVANTE José Zanon De Oliveira 
Published: April 2017

A dinâmica estuarina atua constantemente modelando a estrutura das comunidades zooplanctônicas, portanto, foi alvo deste trabalho avaliar as características do mesozooplâncton em um estuário tropical. Para tanto, foram definidos quatro estações de coleta, as quais foram visitadas em três meses de cada período do ano (estiagem e chuvoso) para a coleta e obtenção dos dados de clorofila-a, salinidade, temperatura, profundidade e transparência, além do uso de rede de plâncton (120μm) para amostragem do mesozooplâncton. Os dados abióticos foram tratados através de ANOVA de um fator. Os resultados abióticos encontrados caracterizam o estuário como de moderada produção, pouca profundidade e considerável influência marinha. Este último fator pôde ser observado na estrutura do mesozooplâncton, no qual ocorreram predominantemente espécies eurihalinas tipicamente estuarinas (Pseudodiaptomus e Oithona) e costeiras de altas salinidades (Favella ehrenbergii). Foi possível observar também a predominância de náuplios e estágios prematuros (copepoda), além da ocorrência de certos taxa durante os dois períodos do ano, indicando sua reprodução na área e, portanto, a saúde do ambiente. Palavras chave: estuário tropical, dinâmica estuarina, comunidade mesozooplanctônica.
Algumas Observações Sobre a Biologia e a Ecologia dos Camarões Palaemon northropi e P. pandaliformis no Estado de Pernambuco (Decapoda - Palaemonidae).
Authors: COELHO Petrônio Alves 
Published: April 2017

A presente nota expõe o resultado de nossas observações sobre as duas espécies de camarões do gênero Palaemon Weber, 1975, encontradas em Pernambuco, P. (Palaemon) pandaliformis (Stimpson, 1871) e P. (Palaemon) northropi (Rankin, 1898), ambas denominadas vulgarmente “potitinga” ou “pititinga”. Estas observações foram realizadas em vários pontos do litoral de Pernambuco, e mesmo de Estados vizinhos, inclusive em estuários e lagoas costeiras, bem como por meio de criação em aquário.
Recent trends in tropospheric temperature over India during the period 1971–2015
Authors: Kothawale D. R. , Singh H. N. 
Published: April 2017

AbstractEver increasing greenhouse gases in the atmosphere are one of the most dominant factors for long‐term changes in the tropospheric temperature variations. To study this fact in the wake of changing global climatic scenario, linear trends in surface temperature and the tropospheric temperatures at five selected isobaric levels (850, 700, 500, 200, and 150 hPa) were examined for the period 1971–2015 across India. The mean monthly temperature data for well‐spread 19 radiosonde stations across India were used to examine the seasonal and annual temperature trends for all India, North India (latitude > 22°N), and South India (latitude < 22°N). Increasing trend in annual temperatures was observed from surface to 500 hPa levels but decreasing from 200 to 150 hPa over South India, whereas North India shows an increasing trend at all the levels. The highest increasing trends of 0.36°C and 0.27°C/decade were observed at 700 hPa over North and South India during the winter season, respectively.