Добірка наукової літератури з теми "90B99"
Оформте джерело за APA, MLA, Chicago, Harvard та іншими стилями
Ознайомтеся зі списками актуальних статей, книг, дисертацій, тез та інших наукових джерел на тему "90B99".
Біля кожної праці в переліку літератури доступна кнопка «Додати до бібліографії». Скористайтеся нею – і ми автоматично оформимо бібліографічне посилання на обрану працю в потрібному вам стилі цитування: APA, MLA, «Гарвард», «Чикаго», «Ванкувер» тощо.
Також ви можете завантажити повний текст наукової публікації у форматі «.pdf» та прочитати онлайн анотацію до роботи, якщо відповідні параметри наявні в метаданих.
Статті в журналах з теми "90B99":
1
Sukarmin, Yustinus, and Sumaryanti Sumaryanti. "IMPLEMENTATION OF SAFETY EDUCATION IN THE SPORT CLASS." Jurnal Kependidikan: Penelitian Inovasi Pembelajaran 1, no. 1 (July 12, 2017): 24–37. http://dx.doi.org/10.21831/jk.v1i1.8338.
Анотація:
This study was aimed at finding out the significance of safety education implemented the physical education teachers of the lower grade of the elementary school during the teaching-learning process. The study was is descriptive qualitative with one variable, namely implementation of safety education. The research subjects were 1,368 physical education teachers of state elementary schools in the Special Region of Yogyakarta, selected by cluster random sampling of 200 teachers from each school. The study was a survey using questionnaires to collect data. Data analysis was descriptive quantitative using percentages. Findings show that safety education implemented by the lower grade of elementary school physical education teachers is described as follows. First, in the fair category in general = 82.69%, in the environmental aspect = 78.92%, in the student aspect = 81.94 %), and in the weather aspect = 73.65%. Second, in the good caregory, in the human aspect = 86.46% and in the teacher aspect = 90.99%IMPLEMENTASI PENDIDIKAN KESELAMATAN DALAM PEMBELAJARAN OLAHRAGAPenelitian ini bertujuan untuk mengetahui implementasi pendidikan keselamatan oleh guru Pendidikan Jasmani Olahraga dan Kesehatan (penjasorkes) SD kelas bawah dalam proses pembelajaran penjasorkes. Penelitian ini merupakan penelitian deskriptif dengan menggunakan satu variabel, yaitu implementasi pendidikan keselamatan. Populasi yang digunakan dalam penelitian ini adalah guru penjasorkes SD Negeri se-Daerah Istimewa Yogyakarta (DIY) yang berjumlah 1.386 orang. Sampel yang digunakan sebanyak 200 orang yang diambil secara random (acak) dengan teknik cluster sampling atau area sampling. Data dikumpulkan dengan menggunakan metode survei dengan teknik angket. Teknik analisis data yang digunakan dalam penelitian ini adalah teknik deskriptif kuantitatif dengan persentase. Hasil penelitian menunjukkan implementasi pendidikan keselamatan yang dilakukan oleh guru penjasorkes SD kelas bawah dalam proses pembelajaran penjasorkes adalah sebagai berikut. Pertama, yang termasuk dalam kategori cukup adalah secara keseluruhan (82,69%), berdasarkan aspek lingkungan (78,92%), aspek peserta didik (81,94%), aspek fisik (84,19%), dan aspek cuaca (73,65%). Kedua, yang termasuk kategori baik adalah berdasarkan aspek manusia (86,46%) dan aspek guru (90,99%).
2
Purnowo, Dwi, Agus Setiawan, and Yusmaniar Yusmaniar. "Pengaruh Faktor Suhu dan Kelembaban pada Lingkungan Kerja terhadap Pertumbuhan dan Perkembangan Mikroba." JRSKT - Jurnal Riset Sains dan Kimia Terapan 9, no. 2 (May 3, 2024): 45–54. http://dx.doi.org/10.21009/jrskt.092.01.
Анотація:
Abstrak Keselamatan dan kesehatan kerja merupakan sebuah kunci suatu perusahaan itu berhasil dalam hal meningkatkan kualitas lingkungan kerja perusahaan. Perwujudan kualitas lingkungan kerja yang sehat merupakan bagian pokok di bidang kesehatan dan udara sebagai komponen lingkungan kerja yang perlu di pelihara agar terhindar dari segala penyakit akibat kerja yang disebabkan oleh mikroba patogen. Oleh karena itu, projek akhir ini dilakukan dengan tujuan mengetahui dan membandingkan uji pengaruh suhu dan kelembaban terhadap pertumbuhan dan perkembangan mikroba di udara lingkungan kerja. Pengujian dilakukan menggunakan metode aktif dengan teknik Impaction sesuai SNI 9099:2022. Hasil pengujian dari data dan grafik yang didapatkan menunjukkan bahwa suhu dan kelembaban dapat mempengaruhi pertumubuhan dan perkembangan mikroba ditandai dengan meningkatnya jumlah koloni bakteri atau jamur yang tersebar pada media seiring meningkatnya jumlah suhu dan kelembaban pada lingkungan kerja sesuai teori dan memenuhi syarat SNI 9099:2022. Kata kunci: lingkungan kerja, udara, mikroba, suhu, kelembaban Abstract Occupational safety and health is a key to a successful company in terms of improving the quality of the company's work environment. The realization of the quality of a healthy work environment is a major part in the field of health and air as a component of the work environment that needs to be maintained in order to avoid all occupational diseases caused by pathogenic microbes. Therefore, this final project was carried out with the aim of knowing and comparing the test of the effect of temperature and humidity on the growth and development of microbes in the air of the work environment. The test was carried out using the active method with the Impaction technique according to SNI 9099: 2022. The test results from the data and graphs obtained show that temperature and humidity can affect microbial growth and development characterized by an increase in the number of bacterial or fungal colonies scattered on the media as the amount of temperature and humidity in the work environment increases according to theory and meets the requirements of SNI 9099: 2022. Keywords: work environment, air, microbes, temperature, humidity
3
Rosfadilla, Puspa, Widirahardjo Widirahardjo, Fajrinur Syarani, and Erna Mutiara. "Diagnostic Accuracy of Pleural Fluid Adenosine Deaminase Level Test in Tuberculous Pleural Effusion." Jurnal Respirologi Indonesia 37, no. 4 (October 17, 2017): 278–82. http://dx.doi.org/10.36497/jri.v37i4.81.
Анотація:
Background: Tuberculous pleural effusion is a paucibacillary manifestation of tuberculosis, so isolation of Mycobacterium tuberculosis is difficult, biomarkers being an alternative for diagnosis. Adenosine deaminase has the potential to optimize the diagnostic approach of tuberculous pleural effusion.
Methods: This study is a diagnostic test observational (cross-sectional), which included 35 inpatient samples that meet inclusion and exclusion criteria from H. Adam Malik Medan General Hospital. Research began on February 1st until July 31st 2016 to examine 10 cc of pleural fluid specimens for the levels of Adenosine deaminase.
Results: There are significant differences in the levels of adenosine deaminase from tuberculous and non-tuberculous pleural effusion (P=0.001). In the cut-off point 36.55 IU/L, level of sensitivity 95.8%, specificity 90.99%, positive predictive value 95.8%, negative predictive value 90.99%, and accuracy 94.2% of pleural fluid adenosine deaminase level test in tuberculous pleural effusion.
Conclusion: Adenosine deaminase pleural fluid can be a diagnostic modality that is easy, fast, relatively affordable and applicable in the diagnosis of tuberculous pleural effusion. (J Respir Indo. 2017; 37(4): 278-82)
4
Ishtiaq, Hira, Norheen Amina, Amina Irfan, Habiba Mohsin, and Ahsan Shahbaz. "REMOVAL OF FLUORIDE FROM DRINKING WATER THROUGH LOW-COST TECHNIQUES." Advances in Civil and Architectural Engineering 14, no. 26 (March 28, 2023): 80–94. http://dx.doi.org/10.13167/2023.26.6.
Анотація:
Fluoride ions (F-) from natural sources or industrial wastewater are the main cause of many pathological conditions in people living in more than 25 countries. Thus, removing F- from drinking water is pivotal for preventing serious health consequences. The WHO recommends a limit of 1,5 mg/L for fluoride in drinking. Excessive amounts of fluoride in drinking water are prevalent in Pakistan, leading to related health risks. Low-cost techniques for the defluoridation of drinking water can be used. In this study, the removal of fluoride from drinking water by an adsorption method using low-cost materials/adsorbents, such as marble chips, wheat husks, rice husks, egg shells, concrete, fuller earth, fly ash, freshly fired bricks, and charcoal, at different contact times and different bed thicknesses were investigated. A batch sampling technique was used for sample collection. On average, marble chips, wheat husks, rice husks, egg shells, concrete, fuller earth, fly ash, freshly fired bricks, and activated charcoal (rice husk) resulted in 71,99 %; 90,99 %; 66,73 %; 90,99 %; 63,30 %; 71,99 %; 22,60 %; 49,67 %; and 90,13 % fluoride removal, respectively. Therefore, defluoridation using these materials is desirable. The performance of adsorbents depends on parameters such as contact time, depth of the adsorbent media, and pH. The bed thickness of the adsorbent has a minor effect on fluoride removal. The major contributors to fluoride removal from water are contact time and adsorbent composition.
5
Medeiros, Pamela Ivellize Pamplona Galvao De. "A Justiça Consensual na Construção da Cidadania: Uma Reflexão dos 20 Anos de Aplicação das Medidas Alternativas da lei 9099/95." Revista de Formas Consensuais de Solução de Conflitos 1, no. 1 (December 6, 2015): 271. http://dx.doi.org/10.26668/indexlawjournals/2525-9679/2015.v1i1.762.
Анотація:
Há duas décadas, a Lei 9099/95 consolidou novel modelo de justiça penal consensual para a os delitos de menor potencial ofensivo através da conciliação e aplicação de medidas despenalizadoras. A transação penal e a suspensão condicional do processo são as medidas despenalizadoras previstas na referida Lei. São institutos voltados à prevenção de outros delitos e à reinserção social do infrator a partir da distribuição da justiça com aplicação conjunta pelo Judiciário, Ministério Público, vítima e comunidade, representada pela sociedade civil organizada. Esse modelo de justiça restaurativa não retira o autor do fato do convívio social e proporciona o cumprimento das penas em um ambiente propício para a reflexão sobre seu papel na sociedade, seus direitos e deveres, seu compromisso consigo mesmo e com a coletividade. Esse estudo visa demonstrar que as medidas alternativas à prisão previstas na Lei 9099/95, além de resposta penal eficaz, pode atuar na construção da cidadania, como instrumento de materialização dos direitos fundamentais, com base nas experiências do programa desenvolvido no Distrito Federal a partir das parcerias entre o Ministério Público do Distrito Federal e Territórios e a Sociedade Civil.
6
Furnal, Joshua. "Andrew B. Torrance, The Freedom To Become A Christian. London: Bloomsbury, 2016, v + 217pp. £90.00/$90.99." International Journal of Systematic Theology 19, no. 2 (March 29, 2017): 241–44. http://dx.doi.org/10.1111/ijst.12217.
7
Hefele, John D., Francesco Bortolussi, and Simon Portegies Zwart. "Identifying Earth-impacting asteroids using an artificial neural network." Astronomy & Astrophysics 634 (February 2020): A45. http://dx.doi.org/10.1051/0004-6361/201935983.
Анотація:
By means of a fully connected artificial neural network, we identified asteroids with the potential to impact Earth. The resulting instrument, named the Hazardous Object Identifier (HOI), was trained on the basis of an artificial set of known impactors which were generated by launching objects from Earth’s surface and integrating them backward in time. HOI was able to identify 95.25% of the known impactors simulated that were present in the test set as potential impactors. In addition, HOI was able to identify 90.99% of the potentially hazardous objects identified by NASA, without being trained on them directly.
8
Ozguroglu, M., H. Turna, M. Sevinc, S. Karaaslan, and U. R. Gursu. "9099 Is there any future of prophylactic cranial irradiation in adenocarcinoma of the lung?" European Journal of Cancer Supplements 7, no. 2 (September 2009): 534. http://dx.doi.org/10.1016/s1359-6349(09)71812-9.
9
Pasinato, Wânia. "Delegacias de Defesa da Mulher e Juizados Especiais Criminais: mulheres, violência e acesso à justiça." Plural (São Paulo. Online) 12 (December 4, 2005): 79. http://dx.doi.org/10.11606/issn.2176-8099.pcso.2005.75673.
Анотація:
<p>Tendo em vista as mudanças instituídas na realidade jurídica brasileira a partir da Lei 9099/95, que criou os Juizados Especiais Criminais, o objetivo desta pesquisa con-siste em avaliar a aplicação desta legislação nos casos de violência de gênero. A pesquisa contemplou os registros policiais realizados em três Delegacias de Defesa da Mulher (DDIV1) localizadas no município de São Paulo, entre os anos de 1996 a 1999. Foram abordados apenas casos em que agressões e ameaças ocorreram entre casais, fossem as relações atuais ou passadas. A aplicação da Lei 9099/95 vem sendo diagnosticada como fator de ciescriminalização e re-privarização da violência contra a mulher. Contrariando estas conclusões, o período de implantação dos juizados coincide com o crescimento do número de registros policiais registrados nas DDMs, sugerindo que delegacias e juizados se constituíram em importantes espaços de "fortalecimento" (empowerment) das mulhe-res em situação de violência. Após a análise das idas e vindas de mulheres que registraram mais de urna ocorrência nas DDMs, argumenta-se que a decisão de recorrer à Polícia e a capacidade legal de manifestação no decorrer do processo revelam um modo de exercício de poder pelas mulheres. Pretende-se demonstrar que o novo modelo, alternativo à justiça tradicional e convencional, responde às expectativas das mulheres vitimas de violência e revela um outro tipo de vinculo entre gênero, conflitos e justiça.</p>
10
Hutagaol, Anita Sri Rejeki, and Nurapni Sopia. "KEMAMPUAN LITERASI MATEMATIKA MAHASISWA DALAM MODEL PROBLEM BASED LEARNING MELALUI DARING." VOX EDUKASI: Jurnal Ilmiah Ilmu Pendidikan 11, no. 2 (November 23, 2020): 86–96. http://dx.doi.org/10.31932/ve.v11i2.799.
Анотація:
ABSTRAKPenelitian dilatarbelakangi dengan belum optimalnya literasi matematika mahasiswa. Oleh karena itu, penelitian ini bertujuan untuk meningkatkan kemampuan literasi matematika mahasiswa dalam model Problem Based Leraning melalui daring. Penelitian berbentuk Penelitian Tindakan Kelas yang dilaksanakan dalam 2 siklus. Alat pengumpul data yaitu lembar observasi, lembar tes dan angket. Subjek penelitian adalah mahasiswa PGSD, sedangkan objek penelitiannya adalah model Problem Based Leraning melalui daring. Analisis data menggunakan teknik analisis interaktif. Berdasarkan hasil penelitian diperoleh bahwa: (1) Hasil observasi keterlaksanaan pembelajaran pada siklus I dan pada siklus II sebesar 3.60 dengan kategori cukup baik; (2) Hasil belajar dengan nilai rata-rata siklus I sebesar 70.26, sedangkan pada siklus II mengalami peningkatan menjadi 90.99 dengan kategori baik, dengan ketuntasan sebesar 80.63% pada siklus I dan II; (3) Respon mahasiswa 93.86% dengan kategori sangat positif. Dengan demikian, dapat disimpulkan bahwa model Problem Based Leraning melalui daring dapat meningkatkan kemampuan literasi matematika mahasiswa.Kata Kunci: Daring, Literasi Matematika, Problem SolvingABSTRACTThis research is motivated by not optimal students’mathematical literacy. Therefore, this research aimed to improve students' mathematical literacy skills in Problem Based Learning model via online. The research was Classroom Action Research form which carried out in 2 cycles. Data collection tools are observation sheets, test sheets and questionnaires. Research subjects were PGSD students, while research object was problem-based learning modelvia online. The research showed that: (1) observation results of learning implementation in first cycle and second cycle were 3.60 in the fair category; (2) learning result with an average value in first cycle were 70.26, while in second cycle it has increased were 90.99 in a good category, with completeness were 80.63% in cycles I and II; (3) Student response were 93.86% in a very positive category. Thus, it can be concluded that Problem Based learning model viaonline can improve students' mathematical literacy skillsKeywords: Online, mathematics literacy, Problem Based Learning
Дисертації з теми "90B99":
1
Sentenac, Flore. "Learning and Algorithms for Online Matching." Electronic Thesis or Diss., Institut polytechnique de Paris, 2023. http://www.theses.fr/2023IPPAG005.
Анотація:
Cette thèse se concentre principalement sur les problèmes d'appariement en ligne, où des ensembles de ressources sont alloués séquentiellement à des flux de demandes. Nous les traitons à la fois du point de vue de l'apprentissage en ligne et de l'analyse compétitive, toujours lorsqueEn ce qui concerne l'apprentissage en ligne, nous étudions comment la structure spécifique de l'appariement influence l'apprentissage dans la première partie, puis comment les effets de report dans le système affectent ses performances.En ce qui concerne l'analyse compétitive, nous étudions le problème de l'appariement en ligne dans des classes spécifiques de graphes aléatoires, dans un effort pour s'éloigner de l'analyse du pire cas.Enfin, nous explorons la manière dont l'apprentissage peut être exploité dans le problème d'ordonnancement des machinesThis thesis focuses mainly on online matching problems, where sets of resources are sequentially allocated to demand streams. We treat them both from an online learning and a competitive analysis perspective, always in the case when the input is stochastic.On the online learning side, we study how the specific matching structure influences learning in the first part, then how carry-over effects in the system affect its performance.On the competitive analysis side, we study the online matching problem in specific classes of random graphs, in an effort to move away from worst-case analysis.Finally, we explore how learning can be leveraged in the scheduling problem
2
Thiry, Arnauld. "Assessment of plant hormone quantification as a new physiological trait for crop breeding using a new classification method for crop performance under drought." Thesis, Lancaster University, 2017. http://eprints.lancs.ac.uk/90099/.
Анотація:
The need to accelerate the selection of crop genotypes that are both resistant to and productive under abiotic stress is enhanced by global warming and the increase in demand for food by a growing world population. In this thesis, a new method is proposed for evaluation of wheat genotypes in terms of their resilience to stress and their production capacity. The method quantifies the components of the new index related with yield and yield components under abiotic stress. The index method, based on a scoring scale, offers a simple and easy visualization and identification of resilient, productive genotypes, according to their yield and yield components. This new selection method could help breeders and researchers by defining clear and strong criteria to identify genotypes with high resilience and high productivity and to reveal where genotypes express their susceptibility to a stress environment, providing a quantitative classification of contrasts in terms of yield and yield components. This index method has allowed 1) the identification of contrasting genotypes from a small population (CIMCOG-ROOT, 10 genotypes), and 2) the quantification of their contrasts, in terms of yield and yield components (grain number per spike), both constituting a key opportunity to test whether a stress hormone and/or hormone balance (ABA, ethylene and/or ABA/ethylene) could be used as a physiological trait for breeding for abiotic stress resilience. Due to the complexity of spatial and temporal variation of hormone accumulation (ABA and ethylene) and their different effects in plant development in response to stress environments, it is necessary to investigate how factors other than environment can influence the production of hormones. The factors considered in this work were: day time, water management (irrigation), tissue specificity (leaf and spike) and wheat phenological development (phenological stages). The present study of hormone (ABA and ethylene) quantification in wheat has shown that the genotypic variation in hormone signalling cannot be identified at every developmental stage of the plant. In fact, only two stages were identified for differences in ethylene emission (late- booting and heading), and two for ABA accumulation (late-booting and half-emergence), both on leaf tissue. However, the ratio ABA/ethylene (ABA/ETH) emerges as a better method to study genotypic variation in response to stress environments, in terms of hormone accumulation. In fact, both tissues, leaf and spike at all stages during the pre-anthesis stage (from booting to heading), have shown significant genotypic variation in terms of ABA/ETH balance. The resilience index of grain number per spike and this study of hormone (ABA and ethylene) quantification under drought stress (on leaf and spike), have shown that at late-booting stage, a lower leaf hormone ratio ABA/ETH and higher leaf ethylene emission is associated with a higher resilience of spike fertility (grain per spike resilience). However, under controlled conditions, a possible optimum threshold is observed in terms of leaf hormone ratio ABA/ETH. These results have been obtained with statistical significance in eight genotypes under field conditions and four genotypes under controlled environments. It is suggested in this work that a possible method for early selection of genotypes for high spike fertility resilience under drought stress could be developed by quantifying hormone signalling (leaf ethylene and the leaf ratio ABA/ETH at late-booting stage). However, some improvements in the process of hormone quantification need to be made before recommending this method to breeders.
3
Capewell, Adam Daniel. "Novel grading of silicon germanium for high quality virtual substrates." Thesis, University of Warwick, 2002. http://wrap.warwick.ac.uk/90799/.
Анотація:
The growth of SiGe virtual substrates, by solid-source molecular beam epitaxy (SS-MBE), using a new germanium grading technique has been studied. It is proposed that the grading of germanium using a series of linearly graded/uniform layers (terrace grading) prevents the dislocation pile-ups, associated with strain relief, from penetrating the entire epilayer. Since the dislocation pile-ups cause threading dislocations to become trapped and increase the roughness of the surface, the control of these pile-ups reduces both the threading dislocation density and the RMS surface roughness. Si0.50Ge0.50 virtual substrates of 2 µm thickness using the terrace grading technique have been studied and compared to conventional linear graded and step graded virtual substrates of the same thickness. Substantial reductions in both the RMS roughness and threading dislocation densities are found in the terrace graded structure, compared with the conventional techniques. Electrical properties have been measured in layers grown on virtual substrates using the terrace grading and show promisingly high hole mobilities. The mechanism by which the terrace graded virtual substrates relax has been examined in order to optimise the growth conditions. It is found that the lowest layers of the virtual substrates do not relax until sufficient strain energy is accumulated by the growth of the following layers, leading to dislocation pile-ups that extend through several layers. The use of in-situ anneals has been shown to greatly improve the relaxation of the lower layers, with a corresponding decrease in the size of the pile-ups, and consequently lower threading dislocation densities have been found.
4
Zanetti, Davide. "Comunicazioni sicure su canali eterogenei: un'analisi sistematica di SSL da Java a Jolie." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2015. http://amslaurea.unibo.it/9099/.
Анотація:
All’interno di questa tesi è stata affrontata la tematica della realizzazione di comuni- cazioni sicure, in modo da ottenere l'indipendenza di queste ultime dal canale utilizzato, con l'ausilio di strumenti in grado di fornire supporto per la creazione di applicativi orientati allo scambio di dati e messaggi, quali i linguaggi di programmazione Java e Jolie, il quale è basato sul precedente.
Sono state inizialmente analizzate le principali caratteristiche e le problematiche più importanti che è necessario dover risolvere in modo da poter arrivare al risultato desiderato.
Successivamente, è stato dato un ampio sguardo ad una delle scienze più applicate per risolvere i problemi tipici che affliggono questo tipo di comunicazioni, la crittografia. Sono stati elencati gli strumenti messi a disposizione ed il loro funzionamento.
La crittografia viene poi applicata al protocollo SSL, il quale rappresenta la soluzione maggiormente diffusa, sia sul Web che in altri ambiti, per proteggere le informazioni personali che transitano tra gli end-point di una comunicazione. Sono state elencate le principali caratteristiche, alcuni cenni riguardanti la nascita e lo sviluppo ed è stato descritto il funzionamento di questo protocollo, soprattutto per quanto riguarda la sua fase preliminare, che è una delle parti che lo caratterizzano maggiormente.
In seguito, è stata analizzata la soluzione fornita all’interno delle librerie del linguaggio Java per realizzare comunicazioni indipendenti dal mezzo di comunicazione che soddisfino le politiche dettate dal protocollo SSL. Questa soluzione è rappresentata dalla classe SSLEngine, che è quindi stata esaminata, a partire dal ciclo di vita e dall'inizializzazione, fino ad arrivare all'interazione all'interno di un applicazione.
Quanto esplorato in precedenza viene poi applicato a Jolie, un linguaggio di programmazione basato sulle comunicazioni e sviluppato in Java, all'interno dell'Università di Bologna. Dopo uno sguardo generale alle sue caratteristiche è stata approfondita la gestione dei protocolli, e di conseguenza, l'introduzione di SSL all'interno di essi, realizzata tramite la classe SSLProtocol. Questa classe contiene ed implementa i concetti analizzati nel capitolo riguardante Java, adattandoli all'architettura ed alla progettazione pensata appositamente per Jolie; è stata quindi effettuata un'analisi del codice e della gestione della classe SSLEngine per realizzare comunicazioni sicure. Infine, per verificare l’effettivo funzionamento, sono stati creati due semplici casi d’uso per poter sfruttare i vantaggi offerti da Jolie, il quale è particolarmente indicato per la creazione di applicazioni orientate ai servizi.
5
Tian, Na. "Novel optimisation methods for numerical inverse problems." Thesis, University of Greenwich, 2011. http://gala.gre.ac.uk/9099/.
Анотація:
Inverse problems involve the determination of one or more unknown quantities usually appearing in the mathematical formulation of a physical problem. These unknown quantities may be boundary heat flux, various source terms, thermal and material properties, boundary shape and size. Solving inverse problems requires additional information through in-situ data measurements of the field variables of the physical problems. These problems are also ill-posed because the solution itself is sensitive to random errors in the measured input data. Regularisation techniques are usually used in order to deal with the instability of the solution. In the past decades, many methods based on the nonlinear least squares model, both deterministic (CGM) and stochastic (GA, PSO), have been investigated for numerical inverse problems. The goal of this thesis is to examine and explore new techniques for numerical inverse problems. The background theory of population-based heuristic algorithm known as quantum-behaved particle swarm optimisation (QPSO) is re-visited and examined. To enhance the global search ability of QPSO for complex multi-modal problems, several modifications to QPSO are proposed. These include perturbation operation, Gaussian mutation and ring topology model. Several parameter selection methods for these algorithms are proposed. Benchmark functions were used to test the performance of the modified algorithms. To address the high computational cost of complex engineering optimisation problems, two parallel models of the QPSO (master-slave, static subpopulation) were developed for different distributed systems. A hybrid method, which makes use of deterministic (CGM) and stochastic (QPSO) methods, is proposed to improve the estimated solution and the performance of the algorithms for solving the inverse problems. Finally, the proposed methods are used to solve typical problems as appeared in many research papers. The numerical results demonstrate the feasibility and efficiency of QPSO and the global search ability and stability of the modified versions of QPSO. Two novel methods of providing initial guess to CGM with approximated data from QPSO are also proposed for use in the hybrid method and were applied to estimate heat fluxes and boundary shapes. The simultaneous estimation of temperature dependent thermal conductivity and heat capacity was addressed by using QPSO with Gaussian mutation. This combination provides a stable algorithm even with noisy measurements. Comparison of the performance between different methods for solving inverse problems is also presented in this thesis.
6
Abánades, Lázaro Isabel. "The effect of surface functionalisation on cancer cells internalisation and selective cytotoxicity of zirconium metal organic frameworks." Thesis, University of Glasgow, 2018. http://theses.gla.ac.uk/9099/.
Анотація:
A considerable amount of effort has been directed to develop porous materials as drug delivery systems (DDSs) – one of the most promising emerging applications in healthcare, as most anticancer therapeutics have toxic dose dependence due to a lack of tumour selectivity – as their hierarchical porosity can be used to store and release challenging drugs. Among them, Metal-Organic Frameworks (MOFs) – emerging hybrid, highly porous crystalline structures – offer several advantages compared to other available DDS, as they combine desirable features from both organic (biocompatibility, e.g. porous polymers) and inorganic (high loadings, e.g. mesoporous silica) porous materials. MOFs are highly amenable to functionalisation, meaning fine control over their physical properties can be achieved, and thus they have experienced tremendous development during the past decade in many applications. Despite surface engineering being advantageous for diverse fields – in biomedicine, it can both improve stability and dispersion, and provide the possibility of targeted carriers, decreasing the immune system recognition – surface functionalization of MOFs is underdeveloped. The multiple synthetic steps – synthesis, drug loading and surface modification – and the lack of orthogonality between them hinder their industrial manufacturing as DDSs. This thesis focuses on the development of surface functionalisation protocols of Zirconium MOFs, particularly UiO-66, a Zr-terephthalate MOF, the study of their cell internalisation fate and routes and the correlation with their therapeutic activity. During Chapter 1, an introduction to the use of DDSs in anticancer therapy, followed by examples of the most relevant MOFs from a coordination chemistry point of view, is given, in which zirconium MOFs and their synthesis are highlighted. Particular focus is given to the coordination modulation process, in which monodentate modulators are introduced to the MOFs synthesis to compete with the multidentate linkers during nucleation, enhancing properties such as porosity through the induction of defects. Then, the most relevant examples of surface functionalization of Zr MOFs for drug delivery are discussed with respect to the effects on properties such as colloidal dispersion in aqueous solvents, physiological stability, and drug release kinetics. In Chapter 2 different functionalised modulators (i.e p-functionalised benzoic acids, folic acid or biotin) are introduced to UiO-66 synthesis to obtain surface-functionalised UiO-66 with the appropriate size for drug delivery by one-pot synthesis. Full characterisation of the materials shows them to be remarkably porous due to the defects formed when modulators attach to available zirconium positions in the pores and on the surfaces of the MOFs. Furthermore, the use of a carboxylate-containing anticancer metabolic target (dichloroacetic acid, DCA) as a modulator of UiO-66 synthesis is explored, and co-modulated samples, in which both DCA and functionalised modulators are introduced to UiO-66 synthesis, are synthesised and fully characterised, resulting in drug-containing (ca. 20% w/w) surface-functionalised MOFs by one pot syntheses. Importantly, DCA modulation induces a high number of defects, and consequently highly charged nanoparticles which are colloidally stable in aqueous solvents. Particle size control in the DCA modulated synthesis of the UiO family of isoreticular MOFs – including UiO-66 and its bromo, amino and nitro derivatives, and extended structures Zr-Naphthalenedicarboxylate (NDC) and Zr-Biphenyldicarboxylate (BPDC) – is achieved, obtaining ca. 100 nm particles of UiO-66 derivatives and microcrystals of Zr-NDC and Zr-BPDC when ZrCl4 is the metal precursor, and mesoporous < 20 nm UiO-66 derivatives and ca. 200 nm Zr-NDC and Zr-BPDC when ZrOCl2 is used as the metal precursor. The high porosity of the DCA modulated samples, due to DCA attachment to the inner and outer surface at defect sites, allows the loading of a second drug, the well-known anticancer drug 5-fluorouracil (5-FU), into the pores of the isoreticular MOFs to create dual DDSs. Different postsynthetic modes of surface coating, based in both coordination and covalent chemistry, are studied during Chapter 3. The functionalities of the p-functionalised benzoic acid modulators, introduced to UiO-66 structure during Chapter 2, are used to covalently attach short-chain alkanes and long-chain polymers to UiO-66 surface through copper-catalysed azide-alkyne cycloaddition. Exhaustive characterisation confirms that the attachment occurs through covalent chemistry and not through surface adhesion or electrostatic forces. Folic acid and biotin, which are introduced to UiO-66 surface as synthetic modulators during Chapter 2, are also introduced to UiO-66 surface postsynthetically. Colloidal dispersion and stability towards phosphates are investigated and compared to bare MOFs, in order to gain insights into the effect of both surface chemistry and mode of attachment on physical properties. A comprehensive overview of in vitro studies of cellular internalisation of zirconium MOFs is given in Chapter 4, focussing on the relevance of the endocytosis internalisation routes, which are strictly correlated with therapeutic efficacy. The postsynthetic surface functionalisation protocols investigated in Chapter 3 are applied to analogous calcein-loaded UiO-66 samples. Calcein is a fluorescent molecule not able to efficiently cross the cell membrane by itself, and hence serves as an in ideal probe of MOFs cellular internalisation. Its release from bare and poly(ethylene glycol) coated UiO-66 into phosphate buffered saline at pH 7.4 and 5.5, in order to simulate extracellular and intracellular conditions, is found to be pH responsive (more pronounced at 5.5) for all MOFs, but an ideal decrease in calcein release at pH 7.4 occurs only for PEGylated MOFs. Internalisation of calcein-loaded MOFs by HeLa cervical cancer cells is studied by fluorescence assisted cell sorting, highlighting the effects of surface chemistry on endocytosis efficiencies and internalisation mechanisms. A discussion of in vitro studies into anticancer drug delivery from Zr MOFs is provided in Chapter 5, alongside a summary of the therapeutic effects of DCA and approaches to enhance its anticancer efficacy. Experimental assessment of the in vitro anticancer performance towards MCF-7 breast cancer cells of the DCA-containing MOFs of the UiO family of different sizes (ca. 100 nm and <20 nm), synthesised by coordination modulation during Chapter 2, is given. The effect of dual-drug containing MOFs (DCA and 5-FU) is also examined, to investigate the possible synergic effect of the drug combination. Then, the cytoxicity of bare and surface functionalised, DCA-loaded and empty UiO-66 MOFs is studied at first upon incubation with HeLa cells, for which the cellular routes of internalisation were elucidated in Chapter 4. The most promising MOFs are then tested for selective anticancer activity against a series of cancerous and healthy cells lines, and their macrophage uptake and ROS production is also analysed, to determine the effect of surface functionalization. The selective anticancer cytotoxicity of folate-coated MOFs is attributed to a combination of cancer cell targeting and optimal cell internalisation routes. To summarise, the one-pot synthesis of drug-loaded, surface functionalised UiO-66 has been successfully performed, resulting in porous, crystalline MOFs with the appropriate size for drug delivery. The use of a carboxylate-containing anticancer metabolic target as a modulator has been explored for the UiO family of isoreticular MOFs, resulting in well-dispersed nanoMOFs with enhanced anticancer activity, into which a second drug can be loaded, enabling the creation of dual DDSs.A series of postsynthetic surface modifications are performed, enabling the study of the MOF’s properties (colloidal dispersion, physiological stability and biocompatibility) with respect to their surface chemistry and coating mode, but more importantly providing valuable insights into correlations between surface chemistry, routes of cellular internalisation and therapeutic effect.
7
Costa, Nanci Aparecida [UNESP]. "O uso da mídia e a presença dos gêneros textuais no processo ensino-aprendizagem: uma análise do material didático - cadernos do aluno e do professor - de língua portuguesa do estado de São Paulo." Universidade Estadual Paulista (UNESP), 2012. http://hdl.handle.net/11449/90099.
Анотація:
Made available in DSpace on 2014-06-11T19:24:18Z (GMT). No. of bitstreams: 0
Previous issue date: 2012-08-17Bitstream added on 2014-06-13T19:10:46Z : No. of bitstreams: 1
costa_na_me_rcla.pdf: 741331 bytes, checksum: f7afbe1333b565fea5b4dd5d687dda7d (MD5)O objetivo desta pesquisa de mestrado é estudar a questão do uso das mídias e sua inserção no processo de ensino-aprendizagem de Língua Portuguesa, com o intuito de, no primeiro momento, expor os princípios epistemológicos e históricos que dão suporte teórico para tal temática. A partir desta base teórica, estudar como ocorre a presença destes elementos no material em circulação na rede pública de ensino do Estado de São Paulo. Tecendo, desta forma, discussões sobre a influência dos meios de comunicação na educação e na cultura dos alunos. Finalmente, apresentar qualitativamente a presença do uso das mídias nas apostilas de Língua Portuguesa em circulação no ensino público do Estado de São Paulo, discorrendo, a partir de elementos retirados do próprio material trabalhado em sala de aula, a presença dos gêneros textuais no processo de ensino-aprendizagem, utilizando como base a mídia. Assim, mostrando, a distribuição dos gêneros (textuais e midiáticos) em cada uma das quatro apostilas estudadas pelos alunos e utilizadas pelos professores na série final de sua formação no Ensino Médio
The main goal of this research is to study the issue of media utilization and its insertion on the process of learning-teaching of the Portuguese Language to, primarily, expose the epistemological e historical principles that give theoretical support to that theme. From this theoretical basis, to study how the presence of these elements occur at the circulating material on the public teaching of the State of São Paulo. Bringing, thus, discussions about the influence of the communicational means on education e student culture. Finally, to present qualitatively the presence of media utilization on books of Portuguese Language in circulation at the public teaching of the State of São Paulo, bringing, from the elements taken from the material used in class, the presence of textual genres on the teaching-learning process, using as basis the media. This way, showing, the distribution of genres (textual and mediatic) on each of the four books studied by the students and used by the teachers on the final grade of their formation in High School
8
Quintanilha, Edson de Castro [UNESP]. "Representações de estudantes do curso de Pedagogia e de professores da rede pública sobre alunos dos anos iniciais." Universidade Estadual Paulista (UNESP), 2010. http://hdl.handle.net/11449/90199.
Анотація:
Made available in DSpace on 2014-06-11T19:24:21Z (GMT). No. of bitstreams: 0
Previous issue date: 2010-11-09Bitstream added on 2014-06-13T18:52:13Z : No. of bitstreams: 1
quintanilha_ec_me_prud.pdf: 1693720 bytes, checksum: 1c432d140b0723a87765fe5fe90ac25b (MD5)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
Este trabalho, ligado à linha de pesquisa “Políticas Públicas, Organização Escolar e Formação de Professores”, teve por objetivo investigar e comparar as representações sociais de estudantes do Curso de Pedagogia da FCT/UNESP e dos professores formados em Cursos de Pedagogia, sobre os alunos dos anos iniciais do Ensino Fundamental da rede municipal de ensino, analisando sua percepção sobre a interferência dessas representações no desenvolvimento do trabalho docente. Para atingir esse objetivo, procuramos responder às perguntas: Que representações sociais os estudantes do Curso de Pedagogia e os professores possuem do aluno dos anos iniciais da escola pública com os quais trabalham ou poderão vir a trabalhar? Estas representações apresentam diferenças após o início da prática docente? Elas podem interferir no desenvolvimento do trabalho docente? Apoiamo-nos, para o desenvolvimento desse trabalho, na teoria das representações sociais de Serge Moscovici. A partir do nosso referencial teórico coletamos os dados necessários, junto aos participantes da pesquisa, por meio de questionário contendo solicitação de evocações sobre “aluno ideal” e “aluno da escola pública” e questões objetivas e subjetivas, permitindo uma triangulação para confirmação das representações pesquisadas. A análise dos dados coletados possibilitou-nos identificar as representações sociais de estudantes do Curso de Pedagogia e dos professores sobre os alunos das séries iniciais da rede pública municipal e refletir sobre os aspectos cognitivos, comportamentais/afetivos e socioculturais nelas contidos. Em seguida analisamos as expectativas docentes nascidas das representações e sua possível influência no sucesso escolar do aluno, valendo-nos da teoria da profecia autorrealizadora...
The present paper is connected to the research line entitled “Public Policies, Scholar Organization and Teachers’ Formation”. The main of this study is to investigate and compare social representations of Pedagogy students’ from FCT/UNESP and teachers’ graduated at Pedagogy about elementary school students from municipal schools. Besides, it aims to analyze how their perception interferes into their practice. In order to reach such objectives we intended to ask the following questions: What social representations Pedagogy students and teachers have about elementary school students from municipal schools with whom they will work? Are such representations different after they start to work as teachers? Can they interfere into teachers’ work? The theoretical base of this paper is Social Representations Theory by Serge Moscovici. The data were collected through questionnaire with objective and subjective questions related to the “ideal student” and the “student from public school”, which provides us to investigate the researched representations. Through data analysis it was possible to identify social representations of Pedagogy students’ and teachers’ about elementary school students from municipal schools. Thus, it was also possible to think about cognitive, behavior/affective and sociocultural aspects inserted into such representations. After that, we analyzed teachers’ expectations brought from their representation and the its possible influence in students’ scholar success, according to self-performing theory ... (Complete abstract click electronic access below)
9
Abrantes, Aline Reck Padilha [UNESP]. "Instituição ou instituído?: análise de uma prática escolar de inclusão." Universidade Estadual Paulista (UNESP), 2007. http://hdl.handle.net/11449/90299.
Анотація:
Made available in DSpace on 2014-06-11T19:24:35Z (GMT). No. of bitstreams: 0
Previous issue date: 2007Bitstream added on 2014-06-13T18:52:17Z : No. of bitstreams: 1
abrantes_arp_me_arafcl.pdf: 1339063 bytes, checksum: 0c43029d6cd0e8789c9643246eb866b7 (MD5)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
A experiência profissional e os impasses enfrentados no cotidiano de trabalho atual, quando se trata de crianças com algum diagnóstico a serem incluídas na escola regular, instigaramnos a realizar o presente estudo. Partindo do princípio de que a inclusão implica no trabalho de toda instituição escolar é que buscamos na Pedagogia Institucional sustentação para nossa pesquisa. A Pedagogia Institucional, corpo de conhecimentos teóricos que, articulado a prática pedagógica, transforma a classe num laboratório de trabalho constante vem a ser a perspectiva da leitura da prática da Escola de Educação Infantil e Ensino Fundamental Centro Integrado de Desenvolvimento - CID. Os sujeitos foram todos os profissionais e professores desta escola, os alunos do último ano da educação infantil, alunos da primeira série e alunos da última série do ensino fundamental, os pais e uma profissional da Escola Nossa Senhora do Bom Conselho, escola que recebe alunos egressos do CID. Os dados coletados constituíram os seguintes focos de análise: 1. A escola como promotora da unidade. 2. A escola como promotora da autonomia. 3. A troca com os pais. 4. A escola como promotora do diálogo com a sociedade. 5. O trabalho em grupo. 6. A escuta como exercício da ética. 7. A equipe interdisciplinar como suporte. 8. A prática da avaliação. Após analise e discussão reflexiva, consideramos que o cerne da inclusão é a prática instituída no cotidiano da escola e, pensamos que a relevância desta pesquisa está na possibilidade de contribuir com aqueles setores que pretendem instituir a inclusão.
Professional experience and difficulties faced in the routine of current work, concerning children with some kind of diagnostic to be included in the regular school, encouraged us to accomplish the present work. Our work is supported by Institutional Pedagogy for we think that inclusion is the work of the whole school institution. Institutional Pedagogy, theoretical knowledge which when related to pedagogical practice turns the classroom into a laboratory of constant work, is the perspective from what practiced is understood at the Elementary and Middle school CID (Centro Integrado de Desenvolvimento). The subjects were all professionals and teachers from this school, students from the last grade of elementary school and from the first and last grade of middle school, parents and one professional from Bom Conselho school, which admits students from CIC. The collected data were related to the following focus of analysis: 1. The school as unity provider; 2. The school as autonomy provider; 3. Connections between parents and school; 4. The school as dialogue provider in the society; 5. The group work; 6. Hearing as ethics exercise; 7. The interdisciplinary team as support and 8. Evaluation practice. After the analysis and discussion, we have considered the practice instituted in the school routine the key for the inclusion. We think that the relevance of this study is in the possibility of contributing to those sectors which intend to institute the inclusion.
10
Pinheiro, Cláudia Ramos [UNESP]. "Avaliação da infiltração bacteriana corono-apical de canais radiculares obturados com diferentes tipos de cimentos endodônticos." Universidade Estadual Paulista (UNESP), 2008. http://hdl.handle.net/11449/90399.
Анотація:
Made available in DSpace on 2014-06-11T19:24:37Z (GMT). No. of bitstreams: 0
Previous issue date: 2008-03-24Bitstream added on 2014-06-13T20:31:49Z : No. of bitstreams: 1
pinheiro_cr_me_arafo.pdf: 1052559 bytes, checksum: 2a41a237f5d01f6a98076552b4ca2ebd (MD5)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
Avaliamos a infiltração coroa-ápice da bactéria Enterococcus faecalis em incisivos centrais bovinos instrumentados e obturados com os cimentos endodônticos AH Plus, Endofill, Epiphany, Acroseal e o cimento experimental à base do Polímero da mamona (Polifil). Foi confeccionado um dispositivo a ser adaptado na porção inferior de tubos de centrífuga, Eppendorf. As raízes, previamente obturadas, foram inseridas nesse dispositivo até que 5mm se projetasse para fora do tubo plástico. A junção entre o tubo e a raiz foi selada com araldite, assim como a porção da raiz, externa ao recipiente, excluindo-se 1 mm ao redor do forame apical. O dispositivo Eppendorf e raiz obturada foram fixados em frasco tipo penicilina, contendo caldo .Brain heart infusion.. Com auxílio de uma pipeta, 1mL da bactéria foi transferido ao caldo B.H.I. e 400 µL de uma cultura recente foram transferidos para a porção superior do tubo. Durante 64 dias, a infiltração bacteriana era detectada através da turvação do caldo. Os resultados foram submetidos à análise estatística. Foi utilizado o método não-paramétrico de Kaplan-Meier e o teste de Kruskal-Wallis, complementado por comparações múltiplas pelo teste de Dunn. Adotou-se o nível de significância de 5%. Os cimentos AH Plus e Endofill apresentaram resistência à infiltração bacteriana significativamente menor do que o Polifil, mas estatisticamente equivalentes entre si. Os cimentos Epiphany e Acroseal deram resultados intermediários e equivalentes, mas sem diferença estatisticamente significante em relação aos outros cimentos.
This study compared some of the endodontic sealers sealing ability (AH Plus, Epiphany, Acroseal, Endofill and Polifil (a castor oil-based experimental sealer) using the active lateral condensation technique, through a bacterial test, during 64 days. One hundred bovine incisors were selected and divided into five experimental groups and two control groups (negative and positive ones). The teeth were cleaned and shaped by the step-back technique, then, they were filled with the endodontic sealers and stored in (100%) wet environment. The roots were impermeabilized with araldite glue, adapted into an eppendorf microtube and sterilized by ethylen oxide gas. The root/ eppendorf microtube was added to penicillin flasks containing 6mL of BHI broth kept at 37º C for 4 days to confirm sterilization. After this period, 400µL of Enterococcus faecalis ATCC 29212 were inserted at the upper portion of the eppendorf microtube. Daily leakage was evaluated through the broth turbidy. The results were submitted to the statistical analysis (Kaplan-Meier method as well as Kruskal-Wallis´ and Dunn´s tests). AH Plus and Endofill sealers were statistically equivalent concerning the sealing property, showing less resistance to the bacterial leakage than Polifil, while Acroseal and Epiphany had similar and intermediate behavior, but without numerical significance when compared to the other sealers.
Книги з теми "90B99":
1
Wang, Xianbin, Kai-Kit Wong, Shanji Chen, and Mingqian Liu, eds. Artificial Intelligence for Communications and Networks. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-90199-8.
2
Henin, Bernard. Imaging Our Solar System: The Evolution of Space Mission Cameras and Instruments. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-90499-9.
3
Manthiram, Arumugam, and Yongzhu Fu, eds. Advances in Rechargeable Lithium–Sulfur Batteries. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-90899-7.
4
Jafari, Seid Mahdi, and Ana Sanches Silva, eds. Releasing Systems in Active Food Packaging. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-90299-5.
5
Matsatsinis, Nikolaos, and Evangelos Grigoroudis, eds. Preference Disaggregation in Multiple Criteria Decision Analysis. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-90599-0.
6
Marotzki, Winfried, and Horst Niesyto, eds. Bildinterpretation und Bildverstehen. Wiesbaden: VS Verlag für Sozialwissenschaften, 2006. http://dx.doi.org/10.1007/978-3-531-90399-6.
7
Hackauf, Horst, and Monika Jungbauer-Gans, eds. Gesundheitsprävention bei Kindern und Jugendlichen. Wiesbaden: VS Verlag für Sozialwissenschaften, 2007. http://dx.doi.org/10.1007/978-3-531-90499-3.
8
Bergknapp, Andreas. Ärger in Organisationen. Wiesbaden: VS Verlag für Sozialwissenschaften, 2002. http://dx.doi.org/10.1007/978-3-322-90199-6.
9
Pethig, Rüdiger, and Sofia Blind, eds. Fernsehfinanzierung. Wiesbaden: VS Verlag für Sozialwissenschaften, 1998. http://dx.doi.org/10.1007/978-3-322-90299-3.
10
Wollsching-Strobel, Peter. Managementnachwuchs erfolgreich machen. Wiesbaden: Gabler Verlag, 1999. http://dx.doi.org/10.1007/978-3-322-90399-0.
Частини книг з теми "90B99":
1
Alvanoudi, Angeliki. "Introduction." In Modern Greek in Diaspora, 1–35. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-90899-1_1.
2
Alvanoudi, Angeliki. "Borrowing and Contact-Induced Change." In Modern Greek in Diaspora, 37–58. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-90899-1_2.
3
Alvanoudi, Angeliki. "Mixing Codes." In Modern Greek in Diaspora, 59–83. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-90899-1_3.
4
Alvanoudi, Angeliki. "Conversational Code Switching." In Modern Greek in Diaspora, 85–110. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-90899-1_4.
5
Alvanoudi, Angeliki. "Participant-Related Code Switching." In Modern Greek in Diaspora, 111–32. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-90899-1_5.
6
Alvanoudi, Angeliki. "What Can We Conclude?" In Modern Greek in Diaspora, 133–43. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-90899-1_6.
7
Smith, Chelsey, and James Y. Suen. "Applied Neuroanatomy of the Face and Head." In Diagnosis and Management of Head and Face Pain, 3–11. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-90999-8_1.
8
Agarwal, Vikas, and Ryan T. Fitzgerald. "Interventional Approach to the Diagnosis of Head and Face Pain." In Diagnosis and Management of Head and Face Pain, 119–21. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-90999-8_10.
9
Goree, Johnathan H., Christopher S. Fiedorek, Ruben G. Alexander, and Boris Spektor. "Medical Management of Head and Face Pain." In Diagnosis and Management of Head and Face Pain, 125–51. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-90999-8_11.
10
Jones, John K. "Management of Pain of Oral-Dental Origin: An Evidence-Based Approach." In Diagnosis and Management of Head and Face Pain, 153–60. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-90999-8_12.
Тези доповідей конференцій з теми "90B99":
1
SPIE, Proceedings of. "Front Matter: Volume 9099." In SPIE Sensing Technology + Applications, edited by David B. Chenault and Dennis H. Goldstein. SPIE, 2014. http://dx.doi.org/10.1117/12.2069547.
2
Shinkai, Hajime, Yoshito Hatsuda, and Nobuhisa Suzuki. "Seismic Design Guidelines to Mitigate Upheaval Buckling of Small Diameter Pipes." In 2012 9th International Pipeline Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/ipc2012-90299.
Анотація:
This paper describes The Draft Seismic Design Guidelines to Mitigate Upheaval Buckling of Small Diameter Pipes which were reported by Ministry of Economy, Trade and Industry in 2011. Upheaval buckling of small diameter gas pipes occurred in a high-pressure gas pipeline and three middle-pressure city lines due to the strong ground motion during the 2007 Niigata Chuetsu Offshore earthquake which was a powerful earthquake with moment magnitude of 6.6. A three year research program had been conducted since 2008 to investigate the upheaval buckling behaviors and develop seismic design guidelines to ensure seismic integrity of small diameter high-pressure gas pipelines and middle-pressure main distribution lines.
3
Wang, Rick Yahua, Richard Kania, Udayasankar Arumugam, and Ming Gao. "A Combined Approach to Characterization of Dent With Metal Loss." In 2012 9th International Pipeline Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/ipc2012-90499.
Анотація:
Current in-line inspection technologies (e.g., Caliper/MFL or Combo) for mechanical damage characterization can detect dent with metal loss but with limited ability to discriminate metal loss between corrosion, gouge and crack with certainty. There are also some cases that metal loss signals were detected but not reported by ILI vendors because of either signals below threshold for reporting or other reasons. Practical experience showed that, with assistance of strain based dent analysis and strain limit damage criteria; detailed characterization of MFL tri-axial signals could effectively facilitate to discriminate metal loss features and identify potential risk of cracks or gouges in the dent. In this paper, the newly developed approach is utilized to identify the critical dents in the pipelines and discriminate those dents associated with metal loss reported by combined ILI technologies. A case study was performed with four real dent features, as an example to demonstrate the effectiveness of this approach. The details of the case study, results and findings are summarized in this paper.
4
Poulton, David W. "Conservation Offsets and Pipeline Construction: A Case Study of the TMX Anchor Loop Project." In 2012 9th International Pipeline Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/ipc2012-90599.
Анотація:
When Terasen Pipelines (later Kinder Morgan Canada) sought to loop its Trans Mountain pipeline through Canada’s Jasper National Park and British Columbia’s Mount Robson Provincial Park, both being components of the Canadian Rocky Mountain Parks UNESCO World Heritage site, the company faced formidable regulatory and public interest obstacles. However, the company and several environmental groups agreed not to test the strength of their respective uncertain legal positions, but to work co-operatively with each other and with park managers. The motivating goal was to design into the looping project some aspect of environmental improvement that would result in a net benefit to the ecological conditions of the two parks, more than compensating for the residual disturbance which would be caused by the looping after mitigation. The central concept was that of a “conservation offset” (also known as “biodiversity offset”), which has been defined as: “conservation actions intended to compensate for the residual, unavoidable harm to biodiversity caused by development projects, so as to ensure no net loss of biodiversity.” This paper reviews the history of the discussions and planning which took place, considers the adequacy of the outcomes, and suggest lessons for using conservation offsets as a means to align proponent and stakeholder interests and improve environmental outcomes for linear projects beyond the prospects offered by mitigation alone.
5
Taylor, Mike, Chas Jandu, Marcus McCallum, and Ray Northing. "Risk Based Design Solution for Routing a High Pressure Gas Transmission Pipeline Through a Region of Geological Instability." In 2012 9th International Pipeline Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/ipc2012-90699.
Анотація:
If present, regions of geological instability are normally identified during the route selection study and a route through such locations will normally be rejected if a suitably practicable alternative route can be found. Therefore the consequential effects of a landslip on pipeline integrity rarely need to be considered. However, when an alternate route is not practicable, then a means of negotiating the landslip zone in a safe manner needs to be determined and adopted. One means of negotiating a landslip zone is to route the pipeline well beneath the slope using techniques such as horizontal directional drilling (HDD). However, the success of an HDD cannot be guaranteed in such situations and hence alternative solutions need to be considered even if only as a back-up. This paper describes a technique that was developed by a major UK high pressure gas pipeline operator with support from Andrew Francis & Associates Ltd (AFAA) to achieve a viable engineering alternative to HDD. The technique is based on a combination of structural reliability analysis (SRA) and quantified risk assessment (QRA) which was developed by modifying and customising an approach that the operator had developed and used previously for demonstrating the safe operation of gas transmission pipelines at design factors in excess of 0.72. The overall objective is to demonstrate that all associated risks have been reduced to levels that can be regarded ‘As Low As Reasonably Practicable’ (ALARP). SRA begins with an identification of all credible failure causes and these are then analysed using a combination of structural mechanics based techniques and probability theory to determine failure frequencies. For the present application, significant attention was given to the interaction between the moving land mass and the pipeline using 3-dimensional finite element analysis. The analyses were performed for a range of credible scenarios assuming a range of soil properties to establish the likelihood that failure would occur in the event of a land slide. These were then combined with an assessment of the event frequency to determine estimates of the failure frequency. Having established ‘raw’ failure frequencies, the model was developed further to investigate the effects of introducing mitigating methods to reduce the failure frequencies, and hence risks, to levels that could be regarded as ALARP. The paper describes the philosophy and the salient features of the approach and illustrates the application using a case study.
6
Sahin, Izzet, Andrew F. Chen, Chao-Cheng Shiau, Je-Chin Han, and Robert Krewinkel. "Effect of 45-Deg Rib Orientations on Heat Transfer in a Rotating Two-Pass Channel With Aspect Ratio From 4:1 to 2:1." In ASME Turbo Expo 2019: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/gt2019-90099.
Анотація:
Abstract The internal cooling passages of gas turbine blades mostly have varying aspect ratios from one passage to another. However, there are limited data available in the open literature that used a reduced cross-section and aspect ratio, AR, after the tip turn. Therefore, the current study presents heat transfer and pressure drop of three different α = 45° profiled rib orientations, typical parallel (usual), reversed parallel (unusual), and criss-cross patterns in a rotating two-pass rectangular channel with AR = 4:1 and 2:1 in the first radially outward flow and second radially inward flow passages respectively. For each rib orientation, regional averaged heat transfer results are obtained for both the flow passages with the Reynolds number ranging from 10,000 to 70,000 for the first passage and 16000 to 114000 for the second passage with a rotational speed range of 0 rpm to 400 rpm. This results in the highest rotation number of 0.39 and 0.16 for the first and second passage respectively. The effects of rib orientation, aspect ratio variation, 180° tip turn, and rotation number on the heat transfer and pressure drop will be addressed. According to the results, for usual, unusual and criss-cross rib patterns, increasing rotation number causes the heat transfer to decrease on the leading surface and increase on the trailing surface for the first passage and vice versa for the second passage. Overall heat transfer enhancement of the usual and unusual rib patterns is higher than criss-cross one. In terms of the pressure losses, the criss-cross rib pattern has the lowest and the usual rib pattern has the highest-pressure loss coefficients. When pressure loss and heat transfer enhancement are both taken into account together, the criss-cross or unusual rib pattern might be an option to use in the internal cooling method. Therefore, the results can be useful for turbine blade internal cooling design and heat transfer analysis.
7
Wu, Tingcheng, and Luis San Andrés. "Pump Grooved Seals: A CFD Approach to Improve Bulk-Flow Model Predictions." In ASME Turbo Expo 2019: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/gt2019-90499.
Анотація:
Abstract In multiple stage centrifugal pumps, balance pistons, often comprising a grooved annular seal, equilibrate the full pressure rise across the pump. Grooves in the stator break the evolution of fluid swirl and increase mechanical energy dissipation; hence, a grooved seal offers a lesser leakage and lower cross-coupled stiffness than a similar size uniform clearance seal. To date bulk-flow models (BFMs) expediently predict leakage and rotor dynamic force coefficients of grooved seals; however, they lack accuracy for any other geometry besides rectangular. Note scalloped and triangular (serrated) groove seals are not uncommon. In these cases, computational fluid dynamics (CFD) models seals of complex shape to produce leakage and force coefficients. Alas CFD is not yet ready for routine engineer practice. Hence, an intermediate procedure presently takes an accurate two-dimensional (2D) CFD model of a smaller flow region, namely a single groove and adjacent land, to produce stator and rotor surface wall friction factors, expressed as functions of the Reynolds numbers, for integration into an existing BFM and ready prediction of seal leakage and force coefficients. The selected groove-land section is well within the seal length and far away from the effects of the inlet condition. The analysis takes three water lubricated seals with distinct groove shapes: rectangular, scalloped and triangular. Each seal, with length/diameter L/D = 0.4, has 44 grooves of shallow depth dg ∼ clearance Cr, and operates at a rotor speed equal to 5,588 rpm (78 m/s surface speed) and with a pressure drop of 14.9 MPa. The method validity is asserted when 2D (single groove-land) and 3D (whole seal) predictions for pressure and velocity fields are compared against each other. The CFD predictions, 2D and 3D, show the triangular groove seal has the largest leakage, 41% greater than the rectangular groove seal does, albeit producing the smallest cross-coupled stiffnesses and whirl frequency ratio. On the other hand, the triangular groove seal has the largest direct stiffness and damping coefficients. The scalloped groove seal shows similar rotordynamic force coefficients as the rectangular groove seal but leaks 13% more. For the three seal groove types, the modified BFM predicts leakage that is less than 6% away from that delivered by CFD, whereas the seal stiffnesses (both direct and cross-coupled) differ by 13%, the direct damping coefficients by 18%, and the added mass coefficients are within 30%. The procedure introduced extends the applicability of a BFM to predict the dynamic performance of grooved seals with distinctive shapes.
8
Jiang, Shuai, Fu Chen, Jianyang Yu, Shaowen Chen, and Yanping Song. "Study on Leakage Loss Control Method of Circumferential Bending Clearance." In ASME Turbo Expo 2019: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/gt2019-90199.
Анотація:
Abstract The concept of circumferential bending clearance based on Gauss Bimodal Function is proposed to suppress tip leakage flow (TLF) in a highly-loaded turbine cascade. In this method, a new vortex (BV) can be induced to mix with TLV in the middle of tip region and block the development of tip leakage vortex (TLV). Since the blocking effect divides the TLV into two parts, the tip leakage rate and loss of TLF can be reduced significantly. In order to reveal the mechanisms of blocking effect on leakage flow and its influencing factors, the research numerically investigates the effects of environmental conditions on the TLF development in a turbine cascade. The flow field analysis of the optimal bending clearance is in the first place, and then the effects of clearance heights (δ) and incidence angles (α) on the TLF characteristic and loss are investigated respectively. Results indicate that the blocking effect has a close relationship with the TLF characteristic, which can be divided into the BV migration, TLV-2 location and blocking loss. The nearer distance to the leading edge (LE) and farther distance to the suction side (SS) of BV means a less loss of TLF in bending clearance cases. The further distance away from blade tip and SS of TLV-2 means a larger-scale vortex with more loss. The additional loss in blocking region expands constantly with the increase of clearance height and incidence angle. The bending clearance has limited control effect on TLF with the variation of clearance height, especially the loss increases in Case 2%H. However, it has a strong adaptability with the change of incidence angle, the relative total pressure loss drops up to 16% in Case −5°.
9
Gunady, Ian E., Daniel D. Borup, Andrew J. Banko, Christopher J. Elkins, and John K. Eaton. "Compound Angle Effects on Shaped Hole Film Cooling." In ASME Turbo Expo 2019: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/gt2019-90399.
Анотація:
Abstract Diffuser holes are used extensively for film cooling because they dramatically improve film-cooling effectiveness relative to round holes, but there is concern that the drawbacks of a compound angle (CA) may reduce the beneficial effects. This work uses Magnetic Resonance Velocimetry (MRV) to obtain the 3D, 3-component mean velocity field for a shaped hole with a pitch angle of 30 degrees, blowing ratio of unity, and compound angles of 10 and 20 degrees. The data are compared to a previous MRV measurement of an identical hole with zero skew angle. In the 0 and 20 degree cases, a separation bubble is observed on the downstream wall of the diffuser. Streamtubes emanating from the diffuser exit show the asymmetry of the flow as the jet is accelerated to align with the mainstream flow. Streamtube analysis shows evidence of competing effects of CA on film cooling performance: a wider streamtube footprint may increase coverage while a decrease in streamtube thickness may make coverage more susceptible to turbulent mixing. Analysis of the jet trajectory, defined as the streamtube centroid, shows that the realignment of the jet fluid with the freestream direction occurs in the region of the diffuser exit. Although significant qualitative changes in film cooling performance are not expected, some ingestion of mainstream flow may occur due to vortices present in the diffuser below the plane of the blade surface.
10
Qian, Wenkai, Haoyang Liu, Min Zhu, and Suhui Li. "Kinetics Study of a Staged Combustor Concept for Oxy-Fuel Combustion Gas Turbine Cycles." In ASME Turbo Expo 2019: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/gt2019-90599.
Анотація:
Abstract Oxy-fuel combustion has been identified as a promising technology for CO2 capture and NOx reduction. It has great potential to be applied in gas turbine cycles. Previous studies, however, reveal that simple oxy-fuel combustors suffer from issues like flame blowoff and CO emissions especially at part load, due to the high CO2 content in the combustion atmosphere. In this paper, a staged combustor concept is proposed to mitigate flame blowoff and CO emissions issues for load operations. The conceptual combustor consists of three zones axially: primary zone, CO burnout zone, and dilution zone. All fuel is fed to the primary zone, while O2 is distributed to the primary zone and CO burnout zone. CO2 is distributed to the primary zone and dilution zone. By adjusting the distribution of the O2 and CO2, the primary zone operates at a relatively higher flame temperature at part load, which helps improve the flame blowoff performance. A chemical reactor network model is developed to study the effects of key design/operating parameters on flame blowoff and CO emissions. Results show that the distribution ratios of O2, CO2 and residence time between different zones are the key factors that influence flame blowoff and CO emissions. To mitigate flame blowoff and CO emissions at part load, the distribution of O2 needs to be carefully chosen so that the primary zone operates under near-stoichiometric or slightly lean condition, while the distribution of CO2 to the primary zone also needs to be reduced. The residence time split has stronger influence on CO emissions than CO2 and O2 distribution.
Звіти організацій з теми "90B99":
1
Friedrich, C. E., and D. R. Swope. USA/9099/B(U)F (NRC) ATR (Advanced Test Reactor) Fuel Element Shipping Container safety analysis: Revision 1. Office of Scientific and Technical Information (OSTI), August 1987. http://dx.doi.org/10.2172/6302778.