Gotowe bibliografie tematyczne / FCCUs

Gotowa bibliografia na temat „FCCUs”

Autor: Grafiati
Data publikacji: 4 czerwca 2021
Data aktualizacji: 20 lutego 2023

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Artykuły w czasopismach na temat "FCCUs"

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Huq, I., M. Morari i R. C. Sorensen. "Improving Dynamic Performance of Model IV FCCUs *". IFAC Proceedings Volumes 27, nr 7 (czerwiec 1994): 215–20. http://dx.doi.org/10.1016/s1474-6670(17)47989-4.

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Arandes, J. M., i H. I. de Lasa. "Simulation and multiplicity of steady states in fluidized FCCUs". Chemical Engineering Science 47, nr 9-11 (czerwiec 1992): 2535–40. http://dx.doi.org/10.1016/0009-2509(92)87089-9.

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Pant, H. J., V. K. Sharma, A. G. C. Nair, B. S. Tomar, T. N. Nathaniel, A. V. R. Reddy i Gursharan Singh. "Application of 140La and 24Na as intrinsic radiotracers for investigating catalyst dynamics in FCCUs". Applied Radiation and Isotopes 67, nr 9 (wrzesień 2009): 1591–99. http://dx.doi.org/10.1016/j.apradiso.2009.03.115.

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Mazzucca, Stephanie, Cody Neshteruk, Regan Burney, Amber E. Vaughn, Derek Hales, Truls Østbye i Dianne Ward. "Physical Activity and Sedentary Behaviors of Children in Family Child Care Homes: Are There Opportunities for Improvement?" Pediatric Exercise Science 30, nr 4 (1.11.2018): 529–36. http://dx.doi.org/10.1123/pes.2018-0040.

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Purpose: Many children attend family child care homes (FCCHs), an important setting to influence children’s physical activity (PA) and sedentary behavior (SB). This study assessed children’s PA and SB while in FCCHs, characteristics of the FCCH PA environment, and relationships between the environment and child PA and SB. Method: Children ages 1.5–4.0 years (n = 495) were recruited from 165 FCCHs in North Carolina. Children’s moderate to vigorous PA and SB were measured via accelerometry for 3 days. FCCH PA environments were assessed over 2 days using the Environment and Policy Assessment and Observation for FCCHs. Ten subscores and an overall PA environment score (possible range: 0–30) were calculated; higher scores indicate better quality. Results: Children accumulated 30 (13) minutes of moderate to vigorous PA and 143 (42) minutes of SB in FCCHs daily. FCCHs scored low on the Environment and Policy Assessment and Observation for FCCHs, with an average overall score of 13 (2). FCCHs scored highest on screen time and screen time practices subscores, and lowest on PA education/professional development and PA policy subscores. Although no statistically significant associations were observed, some large Cohen d effect sizes were noted (eg, outdoor playtime subscore and moderate to vigorous PA). Conclusions: This study highlights opportunities to improve FCCHs and increase children’s behaviors (eg, providing adequate time and outdoor play spaces).
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Jiang, Qianxia, Alison Tovar, Patricia M. Risica, Kristen Cooksey Stowers, Marlene Schwartz, Caitlin Lombardi, Augustine Kang, Noereem Z. Mena i Kim M. Gans. "Ethnic Differences in Family Childcare Providers’ Nutrition- and Activity-Related Attitudes and Barriers". Journal of Obesity 2021 (7.10.2021): 1–12. http://dx.doi.org/10.1155/2021/6697006.

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Objective. The aim of the study is to examine family childcare providers’ (FCCPs) attitudes and perceived barriers related to nutrition, physical activity (PA), and screen time (ST) behaviors of preschool children, exploring differences by provider ethnicity. Design. Baseline survey data from a cluster-randomized trial. Participants. Around 168 FCCPs completed a telephone survey, and 126 completed both telephone and in-person surveys. Main Outcome Measures. Phone and in-person surveys include 44 questions to assess FCCPs attitudes and perceived barriers regarding nutrition, PA, and ST in the family childcare home. Analysis. Associations by ethnicity (Latinx vs. non-Latinx) were assessed by ANOVA, adjusting for provider education and Bonferroni correction. Results. Some FCCP attitudes were consistent with national obesity prevention guidelines; for example, most FCCPs agreed that they have an important role in shaping children’s eating and PA habits. However, many FCCPs agreed with allowing children to watch educational TV and did not agree that children should serve themselves at meals. Adjusting for education, there were statistically significant differences in attitude and perceived barrier scores by provider ethnicity. For example, Latinx FCCPs were more likely to agree that they should eat the same foods as children p < .001 but less likely to agree that serving the food at meal and snack time is the adult’s responsibility p < .001 . Latinx FCCPs were more like to perceive barriers related to children’s safety playing outside p < .001 . Conclusions and Implications. While FCCPs hold some nutrition-, PA-, and ST-related attitudes consistent with national guidelines, training opportunities are needed for FCCPs to improve knowledge and skills and overcome perceived barriers related to nutrition and PA. Latinx FCCPs, in particular, may need culturally tailored training and support to overcome misperceptions and barriers.
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Torre, Peter, Jonathan S. Russell, Renee Smith, Howard J. Hoffman, Sonia Lee, Paige L. Williams i Tzy-Jyun Yao. "Words-in-Noise Test Performance in Young Adults Perinatally HIV Infected and Exposed, Uninfected". American Journal of Audiology 29, nr 1 (5.03.2020): 68–78. http://dx.doi.org/10.1044/2019_aja-19-00042.

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Purpose The purpose of this study was to compare Words-in-Noise (WIN) data between young adults with perinatal HIV (PHIV) infection and those with PHIV exposure but uninfected (PHEU) and to evaluate associations between antiretroviral therapy (ART) exposures and WIN data. Method The WIN test and cognitive function were assessed in participants of the Pediatric HIV/AIDS Cohort Study Adolescent Master Protocol Up. Impaired WIN (IWIN) performance was defined as a signal-to-babble ratio of > +10 dB. Cognitive function was determined based on fluid cognition composite scores (FCCSs) and crystallized cognition composite scores, and < 70 was considered a fluid or crystallized cognitive impairment. Log binomial models were used to calculate the relative risks of IWIN between PHIV and PHEU. Results PHIV ( n = 334) and PHEU ( n = 52) participants had similar WIN thresholds and IWIN percentages. For young adults with FCCS ≥ 70, participants with PHIV were less likely to have IWIN for the better ear and worse ear as compared to participants with PHEU. For young adults with FCCS < 70, there was no association between HIV status and risk of IWIN for the better ear or worse ear. For those adults with crystallized cognition composite score of ≥ 70, young adults with PHIV were less likely to have IWIN for the better ear than young adults with PHEU; there was no association between HIV status and IWIN for the worse ear. For young adults with PHIV without a Centers for Disease Control and Prevention Class C diagnosis, a longer combination ART duration was associated with a higher risk of IWIN for the better ear. Conclusions For those without cognitive impairment, young adults with PHEU had poorer WIN thresholds than those young adults with PHIV. In young adults with PHIV who had no prior Centers for Disease Control and Prevention Class C diagnosis, a longer combination ART duration was associated with IWIN only in the better ear.
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Gostynski, Roxanne, Marilé Landman i Jeanet Conradie. "Electrochemical Behaviour of Cr and W Fischer Ethoxy Carbene Complexes: A Comparative Study". Journal of Nano Research 44 (listopad 2016): 1–9. http://dx.doi.org/10.4028/www.scientific.net/jnanor.44.1.

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A comparative electrochemical study of a series Fischer carbene complexes (FCCs) of Cr and W containing an ethoxy and an aryl group as carbene substituents, showed that the Cr-FCCs generally exhibit two one-electron oxidation processes, namely Cr (0) to Cr (I) to Cr (II) while W-FCCs are oxidized in two two-electron oxidation processes, namely W(0) to W(II) to W(IV). The first one-electron oxidation processes of Cr-FCCs is generally reversible, while the first two-electron oxidation processes of all W-FCCs are found to be irreversible. The first reduction process observed for both the W-FCCs and Cr-FCCs is a one-electron process located on the carbene ligand. Both the metal oxidation, as well as the carbene reduction of Cr-FCCs, occurs at lower potentials than for W-FCCs. Substitution of carbonyls coordinated to the metal, or the group attached to the carbene ligand, led to similar trends related to the ease of oxidation or reduction of Cr-FCC and W-FCCs. Density functional theory calculations support and led to a better understanding of experimental electrochemical behaviour.
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Chai, Li Kheng, Kelly Rice-McNeil i Stewart G. Trost. "Patterns and Correlates of Sedentary Behavior in Children Attending Family Child Care". International Journal of Environmental Research and Public Health 17, nr 2 (15.01.2020): 549. http://dx.doi.org/10.3390/ijerph17020549.

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Public health authorities recommend young children should not be sedentary for more than one hour at a time. This study assessed the frequency and duration of sedentary bouts in children attending family child care homes (FCCHs); and examined associations with FCCH provider practices related to sedentary behaviors. Overall, 127 children (aged 3.5 ± 1.1 years) from 41 FCCHs participated in the study. Sedentary bouts were measured using an accelerometer worn for the duration of FCCHs attendance over a randomly selected week. Provider practices were assessed using the Nutrition and Physical Activity Self-Assessment for Child Care self-assessment instrument. Children attending FCCHs mostly accumulated short sedentary bouts (<5 min) with very few lasting more than 10 min. Boys exhibited significantly fewer sedentary bouts, and significantly less sedentary time in bouts than girls. Children attending FCCHs that met or exceeded childcare standards for outdoor active play, had portable play equipment, offered a variety of fixed play equipment, and/or adequate indoor play space exhibited significantly fewer sedentary bouts and significantly less sedentary time accumulated in short and medium length bouts. Programs encouraging FCCHs to adopt physical activity promoting practices could potentially reduce child sedentary time while in care.
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Vargas, J. V. C. "EDITORIAL". Revista de Engenharia Térmica 7, nr 1 (30.06.2008): 02. http://dx.doi.org/10.5380/reterm.v7i1.61746.

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Petroleum will continue to play a key role in the world energetic matrix for long, in spite of the pessimistic predictions about the near shortage of the existing reserves. The offshore exploration technology in deep sea water has challenged such predictions. The recent discovery of oil in the pre-salt layer in the southern Brazilian sea coast is one of those events. The so called pre-salt layer consists of a region that develops along 800 kilometers between the Brazilian states of Espírito Santo and Santa Catarina, below the bottom of the sea, and encompasses three sedimentary basins (Espírito Santo, Campos and Santos). The oil found in this area is at depths that exceed 7 thousand meters, below a thick salt layer that geologists think that had the property of preserving oil quality. However, the oil found in deep sea water usually is heavy oil, and difficult to be refined, requiring refining advanced technologies of fluidized catalytic cracking unities (FCCU). Hence, there will be a demand for the construction and optimization of those unities in larger scale, requiring effective mathematical models and even new technologies. For example, currently Brazil is energetically independent, but exports heavy oil and imports light oil, due to the lack of the necessary number of FCCU’s for the efficient refining of heavy oil. Therefore, it is considered that the theoretical, numerical and experimental study of heavy oil refining technologies emerges as a promising line of research to be considered by thermal engineering scientists.
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Oh, Jae-Young, Eun-A. Kim, Sang In Kang, Hye-Won Yang, Bomi Ryu, Lei Wang, Jung-Suck Lee i You-Jin Jeon. "Protective Effects of Fucoidan Isolated from Celluclast-Assisted Extract of Undaria pinnatifida Sporophylls against AAPH-Induced Oxidative Stress In Vitro and In Vivo Zebrafish Model". Molecules 25, nr 10 (19.05.2020): 2361. http://dx.doi.org/10.3390/molecules25102361.

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Fucoidan is a fucose-enriched polysaccharide, obtained from brown algae, with demonstrated antioxidant properties. However, traditional extraction methods using water or chemical-based extraction methods have reduced yield and produced hazardous by-products. In this study, we isolated fucoidan at a high yield using enzyme-assisted extraction; the Celluclast enzyme assisted extract of Undaria pinnatifida sporophylls (FCUS). To examine the antioxidant properties of FCUS, oxidative stress was induced with 2,2′-azobis (2-methylpropionamidine) dihydrochloride (AAPH) in Vero cells and zebrafish model. FCUS was composed of 30.4% sulfate and 52.3% fucose. Pre-treatment of Vero cells with FCUS dose dependently inhibited AAPH-induced reactive oxygen species (ROS) production. Moreover, FCUS remarkably reduced cell death, ROS generation, and lipid peroxidation production in zebrafish larvae. Overall, these findings indicate that the sulfate-rich fucoidan of FCUS, obtained with an eco-friendly process, could be implemented as a beneficial antioxidant agent in the functional food industry.
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Rozprawy doktorskie na temat "FCCUs"

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Whitcombe, Joshua Matthew, i n/a. "Study of Catalyst Particle Emissions From a Fluidized Catalytic Cracker Unit". Griffith University. School of Environmental Engineering, 2003. http://www4.gu.edu.au:8080/adt-root/public/adt-QGU20031003.152200.

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The control of particle emissions from an oil refinery is often difficult, due to changing operational conditions and the limited range of available treatment options. Excessive particle emissions have often been attributed start up problems with Fluidized Catalytic Cracker Units (FCCU) and little information is available regarding the exact composition and nature of these excessive emissions. Due to the complex nature of a FCCU, it has in the past been difficult to identify and control emissions, without the use of expensive end of pipe technologies. An Australian Oil Refinery, concerned with their catalyst emissions, sponsored this study of FCCU particle emissions. Due to the industrial nature of the project, a holistic approach to the management of emissions was taken, instead of a detailed investigation of a single issue. By looking at the broader range of issues, practical and useful outcomes can be achieved for the refinery. Initially, detailed emissions samplings were conducted to investigate the degree of particle emissions under start up conditions. Stack emissions were collected during a standard start up, and analysed to determine the particle size distribution and metal concentration of the emitted material. Three distinct stages of emissions were discovered, initially a high concentration of larger particles, followed by a peak in the very fine particles and finally a reduction of particle emissions to a more steady or normal operational state. The variation in particle emissions was caused by operational conditions, hardware design and catalyst characteristics. Fluctuations in the gas velocity through the system altered the ability of the cyclones to collect catalyst material. Also, the low bed level allowed air bypass to occur more readily, contributing to the increased emissions levels seen during the initial stage of the start up. Reduced fluidity characteristics of the circulating catalyst also affected the diplegs operations, altering the collection efficiency of the cyclone. During the loading of catalyst into the system, abraded material was quickly lost due to its particle size, contributing to fine particle emissions levels. More importantly, thermal fracturing of catalyst particles occurred when the cold catalyst was fed into the hot regenerator. Catalyst particles split causing the generation of large amounts of fine particle material, which is easily lost from the system. This loading of catalyst directly linked to the period of high concentration of fine particles in the emissions stream. It was found that metals, and in particular iron, calcium and silicon form a thick layer on the outside of the catalyst, with large irregular shaped metal ridges, forming along the surface of the particle. These ridges reduce the fluidity of the catalyst, leading to potential disruptions in the regenerator. In addition to this, the metal rich ridges are preferentially removed via attrition, causing metal rich material to be emitted into the atmosphere. To overcome these high particle emissions rates from the FCCU the refinery should only use calcinated catalyst to reduce the influence of thermal process and particle fracture and generation. Although the calcinated catalyst can fracture when added to the system, it is far less than that obtained with uncalicinated catalyst. To further reduce the risk of particle fracture due to thermal stresses the refinery should consider reducing the temperature gradients between the hot and cold catalyst. Due to the economics involved with the regenerator, possible pre-warming of catalyst before addition into system is the preferred option. This pre-heating of catalyst should also incorporate a controlled attrition stage to help remove the build up of metals on the surface of the particles whilst allowing this material to be collected before it can be released into the atmosphere. The remove of the metal crust will also improve the fluidity of the system and reduce the chance of catalyst blockages occurring. Finally, modelling of the system has shown that control of key parameters such as particle size and gas velocity are essential to the management of air emissions. The refinery should look at adjusting start up procedures to remove fluctuations in these key parameters. Also the refinery should be careful in using correlation found in the literature to predicted operational conditions in the system as these correlations are misleading when used under industrial situations.
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Whitcombe, Joshua Matthew. "Study of Catalyst Particle Emissions From a Fluidized Catalytic Cracker Unit". Thesis, Griffith University, 2003. http://hdl.handle.net/10072/367301.

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The control of particle emissions from an oil refinery is often difficult, due to changing operational conditions and the limited range of available treatment options. Excessive particle emissions have often been attributed start up problems with Fluidized Catalytic Cracker Units (FCCU) and little information is available regarding the exact composition and nature of these excessive emissions. Due to the complex nature of a FCCU, it has in the past been difficult to identify and control emissions, without the use of expensive end of pipe technologies. An Australian Oil Refinery, concerned with their catalyst emissions, sponsored this study of FCCU particle emissions. Due to the industrial nature of the project, a holistic approach to the management of emissions was taken, instead of a detailed investigation of a single issue. By looking at the broader range of issues, practical and useful outcomes can be achieved for the refinery. Initially, detailed emissions samplings were conducted to investigate the degree of particle emissions under start up conditions. Stack emissions were collected during a standard start up, and analysed to determine the particle size distribution and metal concentration of the emitted material. Three distinct stages of emissions were discovered, initially a high concentration of larger particles, followed by a peak in the very fine particles and finally a reduction of particle emissions to a more steady or normal operational state. The variation in particle emissions was caused by operational conditions, hardware design and catalyst characteristics. Fluctuations in the gas velocity through the system altered the ability of the cyclones to collect catalyst material. Also, the low bed level allowed air bypass to occur more readily, contributing to the increased emissions levels seen during the initial stage of the start up. Reduced fluidity characteristics of the circulating catalyst also affected the diplegs operations, altering the collection efficiency of the cyclone. During the loading of catalyst into the system, abraded material was quickly lost due to its particle size, contributing to fine particle emissions levels. More importantly, thermal fracturing of catalyst particles occurred when the cold catalyst was fed into the hot regenerator. Catalyst particles split causing the generation of large amounts of fine particle material, which is easily lost from the system. This loading of catalyst directly linked to the period of high concentration of fine particles in the emissions stream. It was found that metals, and in particular iron, calcium and silicon form a thick layer on the outside of the catalyst, with large irregular shaped metal ridges, forming along the surface of the particle. These ridges reduce the fluidity of the catalyst, leading to potential disruptions in the regenerator. In addition to this, the metal rich ridges are preferentially removed via attrition, causing metal rich material to be emitted into the atmosphere. To overcome these high particle emissions rates from the FCCU the refinery should only use calcinated catalyst to reduce the influence of thermal process and particle fracture and generation. Although the calcinated catalyst can fracture when added to the system, it is far less than that obtained with uncalicinated catalyst. To further reduce the risk of particle fracture due to thermal stresses the refinery should consider reducing the temperature gradients between the hot and cold catalyst. Due to the economics involved with the regenerator, possible pre-warming of catalyst before addition into system is the preferred option. This pre-heating of catalyst should also incorporate a controlled attrition stage to help remove the build up of metals on the surface of the particles whilst allowing this material to be collected before it can be released into the atmosphere. The remove of the metal crust will also improve the fluidity of the system and reduce the chance of catalyst blockages occurring. Finally, modelling of the system has shown that control of key parameters such as particle size and gas velocity are essential to the management of air emissions. The refinery should look at adjusting start up procedures to remove fluctuations in these key parameters. Also the refinery should be careful in using correlation found in the literature to predicted operational conditions in the system as these correlations are misleading when used under industrial situations.
Thesis (PhD Doctorate)
Doctor of Philosophy (PhD)
School of Environmental Engineering
Faculty of Environmental Sciences
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Veluswamy, Ganesh Kumar. "Hydrodynamics of industrial scale FCCU stripper". Thesis, Curtin University, 2010. http://hdl.handle.net/20.500.11937/1965.

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Stripper is an important component of a fluid catalytic cracking (FCCU) unit. It strips and recovers the adsorbed/deposited light hydrocarbons on the catalyst particle surface using steam in a counter current flow process. The common flow problems encountered in an FCC stripper unit include channelling, bridging and maldistribution. In this work the hydrodynamics of industrial scale FCC Strippers was studied and investigated using 3D computational fluid dynamics (CFD) simulations and experiments. The CFD and experimental studies showed that internals and inlet configurations play a vital role in determining the hydrodynamics of the Stripper unit.
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Mei, Yu 1969. "An experimental and empirical investigation of the FCC's spectrum auctions". Diss., The University of Arizona, 1998. http://hdl.handle.net/10150/288840.

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Beginning in 1994, the Federal Communication Commission (FCC) started to use auctions for the allocation of scarce radio spectrum licenses. The spectrum auctions have drawn widespread attention as policy makers and economists are interested in how effectively these auctions can raise revenues while promoting efficient allocations. The first chapter provides a broad survey of the PCS auctions and of the developments in Broadband PCS and cellular industries that relate to the PCS auctions. The survey discuss how technology, geography, policy and the firm's industry circumstances affect firms' valuations of the spectrum and are important determinants of the efficient design of the spectrum auctions, as well. The presence of different types of communications providers, cellular providers, wireline providers, and new PCS providers, in the PCS auctions lead to asymmetries in valuations and information. In theory, this structure has a qualitative affect on common value auction outcomes. In laboratory experiments, bidders are found to overbid, much like the findings in previous common value auction experiments, however, the less informed bidders suffer from much stronger overbidding than the informed bidders, and this overbidding can persist over many periods. In the presence of overbidding, additional public information reduced the seller's average revenues. Experience and feedback diminishes but does not eliminate overbidding. In Chapter 3, bidding data from the Interactive Video and Data Service auction, one of the FCC's earliest spectrum auctions are analyzed. Bidding behavior confirms the hypotheses that (1) the larger the area, given the population, the lower the valuation; (2) the larger the population, the higher the income, and the faster the population grows, the higher the valuation; and (3) the number of bidders, the availability of discounts to some bidders, the earlier in the sequence that an auction occurs all positively influence the amount of the winning bid. In addition, licenses in areas with greater population or in auctions with more participating bidders are more likely to be defaulted. Finally, designated entities who receive a bidding discount are significantly more likely to default.
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Mallory, Donald Paul. "Co-diffusion of particles in biological systems studied using PIE-FCCS". University of Akron / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=akron1627666937482877.

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Jackson, Penny M. "The effects of the FCC's 2003 revision of the 1996 Telecommunications Act on media ownership groups and voice diversity". Honors in the Major Thesis, University of Central Florida, 2007. http://digital.library.ucf.edu/cdm/ref/collection/ETH/id/1033.

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This item is only available in print in the UCF Libraries. If this is your Honors Thesis, you can help us make it available online for use by researchers around the world by following the instructions on the distribution consent form at http://library.ucf.edu/Systems/DigitalInitiatives/DigitalCollections/InternetDistributionConsentAgreementForm.pdf You may also contact the project coordinator, Kerri Bottorff, at kerri.bottorff@ucf.edu for more information.
Bachelors
Sciences
Radio and TV; Broadcast Journalism
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Chmyrov, Volodymyr. "Fluorescence fluctuation studies of biomolecular interactions in solutions, biomembranes and live cells". Doctoral thesis, KTH, Experimentell biomolekylär fysik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-187708.

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Fluorescence spectroscopy and imaging have a very broad spectrum of applicationswithin the life sciences, in particular for detection and characterization ofbiomolecular dynamics and interactions in different environments. This thesis comprisesprojects that strive to further expand the information content extracted fromthe detected fluorescence, leading to sensitive readout parameters for studies ofbiomolecular dynamics and interactions. Two major strategies are presented toachieve this aim. The first strategy is based on the expansion of the availablereadout parameters beyond the "traditional" fluorescence parameters: intensity,wavelength, polarization and fluorescence lifetime. The additional parameters arebased on blinking properties of fluorescent labels. In particular on transitions betweensinglet and triplet states, and transitions between the trans- and cis-isomersof fluorophores. Two publications in the thesis are based on this strategy (paperI and IV). The second strategy is based on the utilization of fluorescence intensityfluctuations in order to detect the oligomerization mechanisms of fluorescentlylabeled peptides and proteins. This strategy combines the intensity fluctuationanalysis and the readout of distance dependent energy transfer between fluorescentmolecules together with the correlation analysis of fluorescence from two labeledproteins emitting at different wavelengths. Another two publications presented inthe thesis are based on the second comprehensive strategy (papers II and III).The work presented in this thesis shows that the blinking kinetics of fluorescentlabels contain significant information that can be exploited by a combination of fluctuationsanalysis with distance dependent excitation energy transfer between thefluorescent molecules, or by analysis of fluorescence covariance between moleculesthat emit at different wavelengths. These fluorescence-based methods have a significantpotential for molecular interaction studies in the biomedical field.

QC 20160527

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定家, 和佳子. "FCCSを用いた生細胞内タンパク質間相互作用の定量". 京都大学 (Kyoto University), 2015. http://hdl.handle.net/2433/199469.

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Raabe, Isabel. "Visualization of cell-to-cell communication by advanced microscopy techniques". Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-178404.

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In order to maintain a multicellular organism cells need to interact and communicate with each other. Signalling cascades such as the Bone Morphogenic Protein (BMP) and Hedgehog (Hh) signalling pathways therefore play essential roles in development and disease. Intercellular signalling also underlies the function of stem cell niches, signalling microenvironments that regulate behaviour of associated stem cells. Range and intensity of the niche signal controls stem cell proliferation and differentation and must therefore be strictly regulated. The testis and ovary of the fruit fly Drosophila melanogaster are established models of stem cell niche biology. In the apical tip of the testis, germ line stem cell (GSCs) and somatic cyst stem cells (CySCs) are arranged around a group of postmitotic somatic cells termed hub. While it is clear which signals regulate GSC maintenance it is unclear how these signals are spatially regulated. Here I show that BMP signalling is specifically activated at the interface of niche and stem cells. This local activation is possible because the transport of signalling and adhesion molecules is coupled and directed towards contact sites between niche and stem cells. I further show that the generation of the BMP signal in the wing disc follows the same mechanism. Hh signalling controls somatic stem cell populations in the Drosophila ovary and the mammalian testis. However, it was unknown what role Hh might play in the fly testis, where the components of this signalling cascade are also expressed. Here I show that overactivation of Hh signalling leads to an increased proliferation and an expansion of the cyst stem cell compartment. Finally, while the major components of the Hh signalling pathway are known, detailed knowledge of how signal transduction is implemented at the cell biological level is still lacking. Here, I show that localisation of the key signal transducer Smo to the plasma membrane is sufficient for phosphorylation of its cytoplasmic tail and downstream pathway activation. Using advanced, microscopy based biophysical methods I further demonstrate that Smo clustering is, in contrast to the textbook model, independent of phosphorylation.
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Déméautis, Claire. "Développement de nouvelles méthodes pour dépasser les limitations rencontrées dans le suivi de biosenseur FRET par microscopie de fluorescence quantitative". Thesis, Rennes 1, 2016. http://www.theses.fr/2016REN1B035/document.

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La microscopie de fluorescence est devenue un outil incontournable en biologie. En particulier, il est possible de suivre dans le temps et dans l’espace en cellules vivantes l’activité de protéines en utilisant des biosenseurs FRET génétiquement encodés. Mon travail de thèse a consisté à développer de nouvelles méthodes de microscopie de fluorescence quantitative pour dépasser les limitations rencontrées dans le suivi de biosenseurs FRET. En premier lieu, j’ai eu à développer une méthodologie pour le suivi de deux biosenseurs FRET génétiquement encodés par mesure de durée de vie (FLIM) en simultané avec une seule longueur d’onde d’excitation. En effet, il n’est pas facile de suivre deux activités biochimiques par biosenseurs FRET dans un même échantillon vivant par microscopie de fluorescence à cause de l’existence de fuites spectrales dans les canaux de détection des différentes protéines fluorescentes et l’utilisation de deux longueurs d’onde d’excitation pour chacun des deux donneurs. En combinant les deux couples de protéines fluorescentes mTFP1/ShadowG et LSSmOrange/mKate2, les artefacts de fuite spectrale ont pu être négligés. Il a été possible de suivre les activités kinases des protéines ERK et PKA en simultané par FLIM. À l’aide de cette méthodologie, nous avons pu mettre en évidence une activation de la voie PKA lors d’une stimulation à l’EGF. En second lieu, j’ai développé une méthode pour le suivi de biosenseur FRET par la technique de spectroscopie à corrélation croisée de fluorescence (FCCS). Le suivi d’activité de certaines protéines peut s’avérer difficile du fait de leur faible expression au sein de l’échantillon vivant et de leur localisation. La méthode de FCCS nécessite une faible concentration de fluorophores et peut donc s’adapter à ces échantillons. Le FRET a un effet direct sur l’amplitude de corrélation croisée lorsque celle-ci est mesurée en suivant la co-diffusion de deux protéines fluorescentes attachées à un même biosenseur. Une diminution de ratio d’amplitude des courbes d’autocorrélation (verte ou rouge) sur l’amplitude de la courbe de corrélation croisée correspond à la présence de FRET. Nous avons pu mesurer cette diminution dans des cellules exprimant le biosenseur FRET Aurora A WT (FRET) en comparaison avec un mutant K162M (non FRET). Ces premiers résultats sont très prometteurs pour l’utilisation de cette approche au suivi d’un biosenseur faiblement exprimé en cellules vivantes. L’amélioration du suivi de biosenseur FRET, par les méthodes de microscopie de fluorescence quantitative présentées dans ce travail, doit pouvoir permettre la réponse à des questions d’intérêt biologiques nécessitant le suivi multiplex de FRET ou la mesure de biosenseurs à faible niveau d’expression, là où les techniques conventionnelles se heurtaient à leur limitation
Fluorescence microscopy has become an invaluable tool in biology. In particular, it allows to follow in time and space the activity of proteins, using genetically encoded FRET biosensors, in live cell imaging. In my thesis work, I have developed new quantitative fluorescence microscopy methods to overcome the limitations encountered in monitoring FRET biosensors. First, I developed a methodology to monitor simultaneously two genetically encoded FRET biosensors by lifetime measures (FLIM) with a single excitation wavelength. Previously, it was not easy to follow two biochemical activities by FRET biosensors in the same live sample by fluorescence microscopy. Two reasons for that: the existence of spectral bleed through in the detection channel of each fluorescent proteins and the use of two excitation wavelengths for the two donors. By combining two fluorescent proteins pairs: mTFP1 / ShadowG and LSSmOrange / mKate2, the “spectral bleed through” artifact became negligible. It became then possible to follow the kinase activity of PKA and ERK proteins simultaneously by FLIM. Using this methodology, we were able to show an activation of the PKA pathway upon stimulation with EGF. Second, I developed a method to monitor FRET biosensor by fluorescence cross-correlation spectroscopy technique (FCCS). Monitoring the activity of certain proteins may be difficult due to their low expression in living sample and their sub-cellular localization. The FCCS methods requires a low concentration of fluorophores and can therefore be adapted to these samples. FRET has a direct effect on the cross-correlation amplitude when it is measured by following the co-diffusion of two fluorescent proteins attached to a same biosensor. An amplitude ratio decrease, of the autocorrelation curves (green or red) on the amplitude of the cross-correlation curve, corresponds to the presence of FRET. We were able to measure this ratio decreases in cells expressing the FRET biosensor Aurora A wild type (FRET) compared to the K162M mutant one (non-FRET). These first results are very promising to monitor the activity of a weakly expressed protein in living cells biosensor using this approach. The improvement of FRET biosensor monitoring, by quantitative fluorescence microscopy methods presented in this work, will help to answer biological questions of interest requiring the measurement of multiplex FRET monitoring or biosensors at low level expression, where conventional techniques are facing these limitations
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Książki na temat "FCCUs"

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FCCS, fundamental critical care support. Wyd. 4. Mount Prospect, IL: Society of Critical Care Medicine, 2007.

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Office, General Accounting. Telephone communications: The FCC's monitoring of residential telephone service : report to congressional requesters. Washington, D.C: The Office, 1986.

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Olsen, Karen. The impact of the FCC's open network architecture on NS/NP telecommunications security. Gaithersburg, MD: U.S. Dept. of Commerce, Technology Administration, National Institute of Standards and Technology, 1995.

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Office, General Accounting. Telephone communications: The FCC's monitoring of residential telephone service : report to congressional requesters. Washington, D.C: The Office, 1986.

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Olsen, Karen. The impact of the FCC's open network architecture on NS/NP telecommunications security. Gaithersburg, MD: U.S. Dept. of Commerce, Technology Administration, National Institute of Standards and Technology, 1995.

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Office, General Accounting. Telephone communications: The FCC's monitoring of residential telephone service : report to congressional requesters. Washington, D.C: The Office, 1986.

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Olsen, Karen. The impact of the FCC'S open network architecture on NS/NP telecommunications security. Gaithersburg, MD: U.S. Dept. of Commerce, Technology Administration, National Institute of Standards and Technology, 1995.

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Kaplar, Richard T. Cross ownership at the crossroads: The case for repealing the FCC's newspaper/broadcast cross ownership ban. Washington, D.C: Media Institute, 1997.

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FCC's low power FM: A review of the FCC's spectrum management responsibilities : hearing before the Subcommittee on Telecommunications, Trade, and Consumer Protection of the Committee on Commerce, House of Representatives, One Hundred Sixth Congress, second session, on H.R. 3439, February 17, 2000. Washington: U.S. G.P.O., 2000.

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Finance, United States Congress Senate Committee on. FCC's tax certificate program: Hearing before the Committee on Finance, United States Senate, One Hundred Fourth Congress, first session, March 7, 1995. Washington: U.S. G.P.O., 1995.

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Części książek na temat "FCCUs"

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Weinhardt, Markus. "Portable pipeline synthesis for FCCMs". W Lecture Notes in Computer Science, 1–13. Berlin, Heidelberg: Springer Berlin Heidelberg, 1996. http://dx.doi.org/10.1007/3-540-61730-2_1.

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Nag, Ashis. "Fluid Catalytic Cracking Unit (FCCU)". W Hydrocarbon Processing and Refining, 75–132. Boca Raton: CRC Press, 2022. http://dx.doi.org/10.1201/9781003268246-2.

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Lehman, Dale E., i Dennis L. Weisman. "The FCC’s Efficient–Firm Standard — TELRIC". W The Telecommunications Act of 1996: The “Costs” of Managed Competition, 49–60. Boston, MA: Springer US, 2000. http://dx.doi.org/10.1007/978-1-4615-4315-2_5.

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Kretzschmar, Linn. "Leveraging the Economic Potential of FCC’s Technologies and Processes". W The Economics of Big Science, 85–91. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-52391-6_12.

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Abstract An international consortium of more than 150 organizations worldwide is studying the feasibility of various future particle colliders to expand our understanding of the inner workings of the Universe. At the core of the Future Circular Collider (FCC) study is the design of a 100 km long circular particle collider infrastructure that could extend CERN’s current accelerator complex with an integral research program that spans 70 years. The first step would be an intensity-frontier electron-positron collider allowing to study with precision the Higgs couplings with many of the Standard Model particles and search with high-precision for new physics while the ultimate goal is to build a proton collider with a c.m.s collision energy seven times larger than the Large Hadron Collider. Hosted in the same tunnel and profiting from the new infrastructure, FCC-hh would allow to explore a new energy regime where new physics may be at play.
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Ma, Xiaoxiao, Yong Hwee Foo i Thorsten Wohland. "Fluorescence Cross-Correlation Spectroscopy (FCCS) in Living Cells". W Methods in Molecular Biology, 557–73. Totowa, NJ: Humana Press, 2013. http://dx.doi.org/10.1007/978-1-62703-649-8_25.

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Sibley, David S., Daniel P. Heyman i William E. Taylor. "Optional Tariffs for Access under the FCC’s Price-Cap Proposal". W Price Caps and Incentive Regulation in Telecommunications, 191–206. Boston, MA: Springer US, 1991. http://dx.doi.org/10.1007/978-1-4615-3976-6_10.

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ThayaaSree, P., M. Mythily, D. Vasanthi i D. Manamalli. "Design and Implementation of Fractional Order PI Controller for FCCU". W Advances in Automation, Signal Processing, Instrumentation, and Control, 2567–77. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-15-8221-9_239.

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Li, Pei, Yawei Dai, Markus Seeger i Yan-Wen Tan. "Quantifying Intramolecular Protein Conformational Dynamics Under Lipid Interaction Using smFRET and FCCS". W Methods in Molecular Biology, 345–59. New York, NY: Springer New York, 2018. http://dx.doi.org/10.1007/978-1-4939-8760-3_23.

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Sadamoto, Hisayo, i Hideki Muto. "Fluorescence Cross-correlation Spectroscopy (FCCS) to Observe Dimerization of Transcription Factors in Living Cells". W Methods in Molecular Biology, 229–41. Totowa, NJ: Humana Press, 2013. http://dx.doi.org/10.1007/978-1-62703-284-1_18.

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Smith, Adam W. "Detection of Rhodopsin Dimerization In Situ by PIE-FCCS, a Time-Resolved Fluorescence Spectroscopy". W Methods in Molecular Biology, 205–19. New York, NY: Springer New York, 2015. http://dx.doi.org/10.1007/978-1-4939-2330-4_14.

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Streszczenia konferencji na temat "FCCUs"

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Lewis, Patricia Figliola. "The FCC's universal service rules (abstract)". W the ethics and social impact component. New York, New York, USA: ACM Press, 1998. http://dx.doi.org/10.1145/276755.276766.

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Douglass, Stuart R. "Auxiliary Ventilation Systems Design Basis and Analysis Approach". W ASME 2010 Power Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/power2010-27149.

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Auxiliary systems supporting pressurized water reactors (PWR) within commercial nuclear power plants are enclosed within a special ventilation (SV) zone that is isolated post-accident. Air within the SV zone is recirculated through carbon adsorbers, and discharged at a rate equal to the SV zone air infiltration rate. The SV zone relies on safety-related fan coil units (FCUs) to remove heat since air infiltration is kept to a minimum in order to reduce the spread of contamination. This paper discusses efforts undertaken to quantify area heat loads and FCU operating conditions within the SV zone, and transient analyses performed for loss of FCUs using the GOTHIC code.
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Mengying, Li, Zheng Yi i Li Shaoyuan. "Distributed state estimation of FCCU riser temperature". W 2017 36th Chinese Control Conference (CCC). IEEE, 2017. http://dx.doi.org/10.23919/chicc.2017.8027587.

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Chen, Yanjiao, Lingjie Duan, Jianwei Huang i Qian Zhang. "Balance of revenue and social welfare in FCC's spectrum allocation". W IEEE INFOCOM 2013 - IEEE Conference on Computer Communications. IEEE, 2013. http://dx.doi.org/10.1109/infcom.2013.6567001.

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Lao, ZhongAn, Nong Xiao i ChangSheng Fu. "FCCS: File Classification Caching Service Based on RAM Grid". W 2009 Fourth ChinaGrid Annual Conference (ChinaGrid). IEEE, 2009. http://dx.doi.org/10.1109/chinagrid.2009.18.

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Schelle, Graham, i Dirk Grunwald. "Abstracting Modern FCCMs To Provide a Single Interface to Architectural Resources". W 15th Annual IEEE Symposium on Field-Programmable Custom Computing Machines (FCCM 2007). IEEE, 2007. http://dx.doi.org/10.1109/fccm.2007.9.

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Yang, Lu, Jizheng Chu i Tianren Feng. "A Modeling Method of FCCU Reactor-regenerator System using NARX". W 2020 Chinese Automation Congress (CAC). IEEE, 2020. http://dx.doi.org/10.1109/cac51589.2020.9326731.

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Liu, Xiu, Ning Wang i Jili Tao. "Grey wolf RNA-GA modeling method for FCCU main fractionator". W 2018 Chinese Control And Decision Conference (CCDC). IEEE, 2018. http://dx.doi.org/10.1109/ccdc.2018.8407406.

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Cao, Zhikai, Hui Zheng, Qingyin Jiang, Jia Shi, Hua Zhou, Shuo Cheng i Yi Deng. "On-Line Observation for the Unmeasurable Inputs in FCCU Riser". W 2009 International Conference on Computational Intelligence and Software Engineering. IEEE, 2009. http://dx.doi.org/10.1109/cise.2009.5362731.

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Kohlmiller, A. A. (Fred), i W. Brian Piercy. "Control System Retrofit Completes 10 Years of Gas-Turbine Reliability Enhancements". W ASME 1990 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1990. http://dx.doi.org/10.1115/90-gt-275.

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In 1979, planners at the Arkansas City, Kansas Refinery of Total Petroleum, Inc. investigated expanding the capacity of their fluidized catalyst cracking unit (FCCU). The expansion plan required additional wet gas compression. Also, the volume of air needed for catalyst regeneration would have to be increased. The three existing wet gas compressors were driven by gas-fueled reciprocating engines and the blower, by an electric induction motor. Increasing the capacity of either compressor train required additional horsepower.
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Raporty organizacyjne na temat "FCCUs"

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Olsen, Karen, i John Tebbutt. The impact of the FCC's Open Network Architecture on NSNP telecommunications security. Gaithersburg, MD: National Institute of Standards and Technology, 1995. http://dx.doi.org/10.6028/nist.sp.800-11.

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Prichard, Susan J., Anne G. Andreu, Roger D. Ottmar i Ellen Eberhardt. Fuel Characteristic Classification System (FCCS) field sampling and fuelbed development guide. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station, 2019. http://dx.doi.org/10.2737/pnw-gtr-972.

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Prichard, Susan J., Anne G. Andreu, Roger D. Ottmar i Ellen Eberhardt. Fuel Characteristic Classification System (FCCS) field sampling and fuelbed development guide. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station, 2019. http://dx.doi.org/10.2737/pnw-gtr-972.

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Scott, Joe, H. Development of custom fire behavior fuel models from FCCS fuelbeds for the Savannah River fuel assessment project. Office of Scientific and Technical Information (OSTI), lipiec 2009. http://dx.doi.org/10.2172/1012565.

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