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Gotowa bibliografia na temat „Compressible cake”

Autor: Grafiati

Data publikacji: 4 czerwca 2021

Data aktualizacji: 19 lutego 2022

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Artykuły w czasopismach na temat "Compressible cake"

Abboud, Nelly M., i M. Yavuz Corapcioglu. "Modeling of Compressible Cake Filtration". Journal of Colloid and Interface Science 160, nr 2 (październik 1993): 304–16. http://dx.doi.org/10.1006/jcis.1993.1401.

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Holdich, R. "Simulation of compressible cake filtration". Filtration & Separation 31, nr 8 (grudzień 1994): 825–06. http://dx.doi.org/10.1016/0015-1882(94)80541-5.

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Bierck, Barnes R., i Richard I. Dick. "Mechanisms of Compressible Sludge Cake Shrinkage". Journal of Environmental Engineering 116, nr 4 (lipiec 1990): 663–82. http://dx.doi.org/10.1061/(asce)0733-9372(1990)116:4(663).

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Bierck, B. R., i R. I. Dick. "In Situ Examination of Effects of Pressure Differential on Compressible Cake Filtration". Water Science and Technology 22, nr 12 (1.12.1990): 125–34. http://dx.doi.org/10.2166/wst.1990.0107.

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A synchrotron X-ray absorbance technique was used to monitor suspended solids concentration changes in compressible filter cakes formed at different constant pressure differentials. Results for a kaolin slurry and an activated sludge manifested the markedly higher compressibility of the latter sludge. A model developed to describe effects of pressure differential on filtrate production behavior of an ideal compressible slurry indicated that the kaolin slurry behaved as such. However, the activated sludge was not ideal because changes in pressure differential did not cause the idealized change in filtrate production rate. A thin skin of activated sludge solids at the filter medium accounted for the non-ideal compressive behavior. Porewater pressure data acquired 0.86 mm above the filter medium during activated sludge filtration provided evidence of skin formation and its effect - virtually the total pressure drop occurred within this 0.86 mm region throughout cake formation (after which shrinkage began). Hence, significant effective stresses required to consolidate the sludge cake did not develop in most of the cake until cake formation was complete and shrinkage began.

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Janacova, Dagmar, Pavel Mokrejs, Karel Kolomaznik, Vladimir Vasek, Rudolf Drga, Ondrej Líska i Jiri Krenek. "Optimization of suspensions filtration with compressible cake". MATEC Web of Conferences 76 (2016): 04038. http://dx.doi.org/10.1051/matecconf/20167604038.

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Rencken, G. E., i C. A. Buckley. "Dewatering Sludges Using a Novel Membrane Technology". Water Science and Technology 25, nr 10 (1.05.1992): 41–54. http://dx.doi.org/10.2166/wst.1992.0236.

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A novel tubular configured filter press has been developed for the filtration or dewatering of sludges. The unique features of this filter press are:during the cake deposition stage, sludge is fed under pressure into a self-supporting array of horizontal collapsible porous fabric tubes (the cake is deposited on the internal walls of the tubes).during the cake removal stage, sludge is pumped through the array of tubes at a high velocity and the cake is dislodged from the tube walls by means of a roller cleaning device which traverses the length of the array of porous tubes. The dislodged cake, which is in the form of flakes, is simultaneously hydraulically transported out of the tubes, drained and conveyed to a collection hopper. A brief process description of the tubular filter press process is given. A prototype unit was erected at a water treatment plant to dewater clarifier waste sludge. The cake produced by the filtration of the clarifier waste sludge was very compressible. After tube blockage problems were experienced during the filtration cycle on the prototype unit, research was done on the deposition of a compressible cake inside a porous tube. A predictive internal cylindrical compressible cake filtration model was developed. The results of this research work are discussed. The differences between internal cylindrical, external cylindrical and planar compressible cake filtration are highlighted. At various times low cake recoveries (high cake losses) were experienced on the prototype unit. An investigation was consequently conducted into the dislodging of a very compressible cake during the cake removal process. The results of this investigation are discussed.

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Endo, Yoshiyuki, i Manuel Alonso. "Physical Meaning of Specific Cake Resistance and Effects of Cake Properties in Compressible Cake Filtration". Filtration & Separation 38, nr 7 (wrzesień 2001): 42–46. http://dx.doi.org/10.1016/s0015-1882(01)80447-x.

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Kambham, Kiran K. R., Kagan Tuncay i M. Yavuz Corapcioglu. "A Semianalytical Analysis of Compressible Electrophoretic Cake Formation". Water Resources Research 31, nr 5 (maj 1995): 1421–28. http://dx.doi.org/10.1029/95wr00143.

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Kovalsky, Peter, Marion Gedrat, Graeme Bushell i T. David Waite. "Compressible cake characterization from steady-state filtration analysis". AIChE Journal 53, nr 6 (2007): 1483–95. http://dx.doi.org/10.1002/aic.11193.

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HOLDICH, R. G. "SOLIDS CONCENTRATION AND PRESSURE PROFILES DURING COMPRESSIBLE CAKE FILTRATION". Chemical Engineering Communications 91, nr 1 (maj 1990): 255–68. http://dx.doi.org/10.1080/00986449008940711.

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Rozprawy doktorskie na temat "Compressible cake"

Santiwong, Suvinai Rensis Civil &amp Environmental Engineering Faculty of Engineering UNSW. "Analysis of compressible cake behaviour in submerged membrane filtration for water treatment". Publisher:University of New South Wales. Civil & Environmental Engineering, 2008. http://handle.unsw.edu.au/1959.4/42611.

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In this study, Smiles?? sorptivity-diffusivity numerical analysis is demonstrated to offer a comprehensive description of dead-end constant-pressure compressible cake filtration for water treatment. In addition to providing an insight on filtration performance and cake behaviour in terms of cake hydraulic permeability and compressibility in good agreement with the results derived using Ruth??s conventional cake filtration theory, the sorptivity-diffusivity model can be used to gain further information on depth-dependent local cake properties and extend our knowledge on the effect of feed suspension conditions (including solution composition, coagulant dosage and mixing) on the characteristics of the particulate assemblages (including size, structure and strength). Feed suspension conditions and primary particle properties exert significant effect on the characteristics of particles in suspensions and the resultant particulate assemblages. In the non-coagulated latex systems, an increase in ionic strength resulted in a suppression of the electric double layer of latex particles as indicated by a significant drop in the zeta potential of the feed suspension which lead to a dramatic reduction in cake hydraulic permeability. In the non-coagulated montmorillonite systems, feed suspensions with high ionic strength (1 M Na+, 50 mM Ca2+ and 50 mM Fe2+) were associated with larger suspended solids which appeared to form assemblages with nematic structures that are denser yet more permeable when compared to those with low ionic strength (0.1 M Na+, 1 mM Ca2+ and 2 mM Fe2+) which appeared to form highly ??cross-linked?? voluminous honeycomb type gel of very low permeability. Pre-coagulation of latex and montmorillonite suspensions with Al-based coagulants (alum and ACH) both resulted in formation of very large flocs which subsequently formed highly permeable solid assemblages. In the latex systems, the ratio of optimal alum to ACH dose was approximately 5:1 on a total coagulant mass basis and 1.3:1 as Al while the ratio of optimal alum to ACH dose was as high as 22:1 on a total coagulant mass basis and 6:1 as Al in the montmorillonite systems. Although both alum and ACH resulted in comparable filtration performances, the distinction in Al concentration and results of local cake properties analysis indicated the presence of different cake structures presumably due to the formation of different Al species.

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Bornefelt, Kajsa. "Control model for compressible cake filtration of green liquor in cassette filter". Thesis, KTH, Reglerteknik, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-107502.

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In the closed chemical recovery cycle in the sulphate pulp mill it is important to remove non-process elements. This is done by clarification of the green liquor, either in clarifiers or in filters. This project focuses on a cassette filter developed by Kvaerner Pulping AB. The cassette filter is semi-continuous and the aim of the project was to model the filter in order to be able to control cycle time and feed towards optimization of the capacity. The green liquor sludge forms a compressible filter cake when filtered. The model was built on the filter equation for compressible cake filtration and parameters such as filter cloth resistance, compressibility index and specific resistance in the cake were to be determined. The parameters were calculated by minimizing the difference between the calculated model and the measured data. Some simulation experiments were done to examine if optimization was possible. It turned out that the two parameters describing the green liquor (specific resistance in the cake and compressibility) were not identifiable from each other and the third parameter (resistance in the filter cloth) was also sometimes unidentifiable. The simulation experiments showed that the capacity of the cassette filter is hard to optimize during unfavourable conditions controlling only cycle time and feed. Proper actions might be to add lime mud or aluminium to increase the filterability of the green liquor sludge or to wash the filter socks to decrease the resistance in the filter cloths.

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Sirdeshpande, Gourish. "Determining Constitutive Relationships in Compressible Fibrous Cakes by Dynamic Methods". Fogler Library, University of Maine, 2009. http://www.library.umaine.edu/theses/pdf/SirdeshpandeG2009.pdf.

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Poon, Phillip, i Matthew Dunlop. "Calibration of High Dimensional Compressive Sensing Systems: A Case Study in Compressive Hyperspectral Imaging". International Foundation for Telemetering, 2013. http://hdl.handle.net/10150/579668.

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ITC/USA 2013 Conference Proceedings / The Forty-Ninth Annual International Telemetering Conference and Technical Exhibition / October 21-24, 2013 / Bally's Hotel & Convention Center, Las Vegas, NV
Compressive Sensing (CS) is a set of techniques that can faithfully acquire a signal from sub- Nyquist measurements, provided the class of signals have certain broadly-applicable properties. Reconstruction (or exploitation) of the signal from these sub-Nyquist measurements requires a forward model - knowledge of how the system maps signals to measurements. In high-dimensional CS systems, determination of this forward model via direct measurement of the system response to the complete set of impulse functions is impractical. In this paper, we will discuss the development of a parameterized forward model for the Adaptive, Feature-Specific Spectral Imaging Classifier (AFSSI-C), an experimental compressive spectral image classifier. This parameterized forward model drastically reduces the number of calibration measurements.

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Ahmadiyan, Sara, i Daniel Mehari. "Estimation of the characteristic in-situ compressive strength class of concrete structures - A case study of the Skuru bridge". Thesis, KTH, Bro- och stålbyggnad, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-296706.

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It is inevitable that Structures become older and their intended use changes or the structuralcodes regulations change. In some regions the damage from seismic activities is a possibility.It becomes, therefore crucial to assess the structural capacity of such structures. The purposeof this study is to assess the different methods used for testing and estimating thecharacteristic in-situ compressive strength which is the most vital parameter required instructural assessment. The focus of the study is for existing structures where there is no prior knowledge about theconcrete strength. This study first investigates and evaluates the merits and demerits of thesemethods for investigation of the condition of in-situ compressive strength of concrete inexisting structures. A case study of the Skuru bridge that was built in 1914 was utilized forthis study. The study is based on information of the construction data and some results fromprior investigation performed by the company COWI. Afterwards, non-destructive tests werecarried out with the UPV and Rebound hammer to assess the quality of the concrete. In addition, the study assesses the use of different interpretation methods with regards toreliability and practical application. The results were interpreted in accordance to theEuropean codes, Swedish codes and other interpretation methods. The difference of theresults from the different interpretation methods are compared and evaluated for reliabilityand efficiency. The test results confirmed that the concrete consisted of the same strength class. However,the results from the different interpretation methods are dissimilar. The reason for obtainingdifferent results is because the methods depend on different methodologies. The studyshowed that some methods can sometimes overestimate the results and become unsafe forstructural assessment. On the contrary, the other methods can yield lower but safer estimates. Moreover, the use of small number of cores is evaluated for various methods. The reasons arebecause in practice, the preference is to avoid large number of cores. As a result, it isrecommended to apply care and proper judgment in selection of the methods andinterpretation of the results. It is also recommended to consider the methods with respect tothe aim of the investigation, their limitations and assumptions.
Samtida befintliga konstruktioner blir äldre och de dimensionerade lasterna ökar med tiden.Ifatt med detta ändras även kraven för större laster. Därför bör regelbundna inspektioner ochförbättringar genomföras. I vissa områden kan det även förekomma seismiska rörelser som isin tur förorsakar skador på strukturer. Av bland annat dessa anledningar är det därför viktigtatt bedöma bärförmågan för befintliga konstruktioner. Syftet med arbetet är att granska demetoder och tillvägagångssätt som finns för att kunna bedöma den karaktäristiskatryckhållfastheten för betong i befintliga konstruktioner. Tryckhållfastheten är den styrandeparametern för materialet under tillståndsbedömningar. Huvudfokuset med arbetet är att bedöma den karaktäristiska tryckhållfastheten för befintligakonstruktioner som saknar information om nuvarande tryckhållfasthet. Till en början utfördesen noggrann litteraturstudie för alla applicerbara metoder. Därefter gjordes en undersökningoch bedömning av för- och nackdelar med vardera metod. Syftet med dessa metoder är attkunna mäta den nuvarande tryckhållfastheten för befintliga konstruktioner. Efter en ingående litteraturstudie, valdes de icke-destruktiva metoderna Ultrasonic pulsevelocity och Schmidt Hammer. Dessa metoder applicerades senare på Skuru bron i syfte attutföra icke-destruktiva tester för att bedöma betongens kvalitet. Tidigarekonstruktionshandlingar samt provtagningsrapporter från Skurubron som byggdes år 1914,har legat till grund för detta arbete. Företaget COWI är ansvariga för Skurubron projektet ochhar tillhandahållit all information om bron. Vidare, redovisar detta arbete olika beräkningssätt för samtliga metoder utifrån olikastandarder och tolkningsmetoder. För varje tolkningsmetod har evalueringar och analyserutförts med avseende på tillförlitlighet och praktisk tillämpning. De redovisadeberäkningssätten har använts för att räkna fram resultat från destruktiva och icke-destruktivatester. Resultaten tolkades i enlighet med europeiska koder, svenska koder och andratolkningsmetoder. Skillnaden mellan resultaten från samtliga tolkningsmetoder jämförs ochutvärderas med hänsyn till tillförlitlighet och effektivitet. Testresultaten från UPV och Schmidt Hammer bekräftade att betongen består av sammatryckhållfasthetsklass. Resultaten från de olika tolkningsmetoderna var dock olika.Anledningen till att det blev olika resultat beror på att varje tolkningsmetod utgörs av sinaegna metodiska procedurer. Resultaten visade även att vissa standarder kan övervärderaresultaten vilket kan resultera i fel bedömning av den karaktäristiska tryckhållfastheten. Åandra sidan, resulterade vissa tolkningsmetoder i lägre men säkrare uppskattning avtryckhållfastheten. Utöver detta, utfördes det beräkningar på de destruktiva testerna utifrån olikatolkningsmetoder. Beräkningarna baserades dels på att räkna på ett mindre antal kärnor.Skälet till detta är att man i praktiken vill undvika att borra ett stort antal kärnor. Resultatenvisade att korrekt bedömning och försiktighet vid val av metod och tolkningsmetod behöverimplementeras. Det rekommenderas även att överväga metoderna med hänsyn tillutredningens ändamål, dess begränsningar och antaganden.

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Moraes, João Cláudio Bassan de. "Study on sugar cane straw ash (SCSA) in alkali-activated binders /". Ilha Solteira, 2017. http://hdl.handle.net/11449/152101.

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Orientador: Jorge Luís Akasaki
Resumo: Aglomerantes ativados alcalinamente (AAA) são obtidos da combinação de um precursor solido (geralmente um aluminosilicato) e uma solução alcalina de alta concentração. As vantagens de utilizar este novo tipo de aglomerante comparado ao cimento Portland, um aglomerante convencional, são as menores emissões de CO2, menor consumo de energia e a possibilidade de utilizar matérias prima renováveis e/ou resíduos. Neste sentido, este trabalho apresenta um novo resíduo da indústria da cada de açúcar: a folha de cana de açúcar. A folha apresenta um poder calorífico interessante; portanto, ela pode ser utilizada como biomassa para produzir energia através um processo de queima. Depois deste procedimento, é gerado um novo resíduo: a cinza de folha de cana de açúcar (CF). Esta cinza não apresenta uma destinação correta, então este trabalho tem como intenção utilizar esta cinza como material prima em AAA. A CF foi avaliada de duas formas: como precursor solido e como matéria prima para produzir a solução alcalina. No primeiro modo, a CF foi utilizada em sistemas combinados com a escória de alto forno (EAF) ativado com ambas soluções de NaOH e NaOH/silicato de sódio. No segundo modo, a CF foi utilizada como fonte de sílica para produzir a solução alcalina com o NaOH em AAA baseados em EAF. Os sistemas foram estudados através da resistência a compressão de argamassas e pelo estudo da microestrutura de pastas. Ensaios realizados para avaliar a microestrutura foram a difração de raios-X (DRX)... (Resumo completo, clicar acesso eletrônico abaixo)
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SILVA, Janaina Fernandes e. "Propriedades físicas e mecânicas de argamassa reforçada com fibras do bagaço de cana-de-açúcar (FBC)". Universidade Federal de Goiás, 2010. http://repositorio.bc.ufg.br/tede/handle/tde/655.

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Made available in DSpace on 2014-07-29T15:03:32Z (GMT). No. of bitstreams: 1 Dissertacao Janaina Fernandes e Silva.pdf: 2098127 bytes, checksum: 6809ff1423f7291801fcada3bdd9d3c4 (MD5) Previous issue date: 2010-02-08
In this work survey results are reported, it aimed at assessing, through laboratory tests, the exploitation of bagasse-cane (FBC) in composite cementitious (cement mortar, sand and FBC) assessing the physical and mechanical behavior of the material. Problems of chemical incompatibility between the bagasse fibers and cement matrix components have been removed by specific treatments on the CBF, such as washing, boiling, mineralization with chemicals an a mix of cement and water in different combinations. The sugar cane fibers brake down process, used in other studies conducted with the same material, was not necessary, because nowadays the CBF is already broke down in the production process in the ethanol and sugar industry. The fibers were washed and mineralized with inorganic salts (solution of sodium silicate at 5%; aluminum sulfate solution at 3%) and cream of cement (the concentration of 10:1 of water and cement), in order to protect the fiber against the aggressions of the alkaline mortar, trapping organic matter and the residual sugar to avoid interference in the reactions of cement cohesion, reduce the capacity of water absorption. Different concrete mixtures were tested, in order to find one with better compressive strength. The change occurred in the content of CBF added, may be 1.5 or 3.0% by weight of cement and the type of treatment that these fibers were submitted. Were defined traits and body-of-proof molded and compressed manually into cylindrical molds of 5 cm ø and 10 cm in height, corresponding to five combinations of treatments, two ages, two levels of fiber and three replicates, and two types of reference to variations in curing type (moist chamber and the tank with water and lime). Later, the bodiesof- evidence were submitted to tests of compressive traction in diametral compression and water absorption at 7 and 28 days. The best treatments results were: washed CBF + boiled; washed CBF +boiled+cream cement; and washed CBF + boiled + chemicals.
Neste trabalho estão relatados os resultados de uma pesquisa realizada com o objetivo de avaliar, através de ensaios de laboratório, o aproveitamento do bagaço da cana-deaçúcar (FBC) em compósito de matriz cimentícia (argamassa de cimento, areia e FBC), avaliando o comportamento mecânico e físico do material obtido. Problemas de incompatibilidade química entre as fibras do bagaço e os componentes da matriz cimentícia foram solucionados através de tratamentos específicos da FBC, como lavagem, fervura, mineralização com calda de cimento e mineralização com produtos químicos, combinados entre si. O processo de desmedulamento das fibras do bagaço da cana-de-açúcar, realizado em outras pesquisas com o mesmo material, não foi necessário, pois atualmente a FBC já vem desmedulada pelo processo de produção na indústria sucro-alcooleira. As fibras foram lavadas e mineralizadas com sais inorgânicos (solução de silicato de sódio a 5% e sulfato de alumínio em solução a 3%) e com nata de cimento (na concentração de 10:1 de água e cimento), com a finalidade de proteger a fibra contra as agressões do meio alcalino da argamassa; imobilizar a matéria orgânica e o açúcar residual para evitar a interferência do mesmo nas reações de pega do cimento e reduzir a capacidade de absorção de água pela FBC. Diferentes traços de argamassa foram testados, visando encontrar aquele com melhor resistência à compressão. A variação ocorreu no teor de FBC acrescentado, podendo ser de 1,5 ou 3,0% da massa do cimento e no tipo de tratamento que estas fibras foram submetidas. Foram definidos traços e corpos-de-prova moldados e compactados manualmente em fôrmas cilíndricas de 5 cm de Ø e 10 cm de altura, correspondentes a 5 combinações de tratamentos, duas idades, dois teores de fibra e três repetições, além de dois tipos de referência com variações no tipo de cura (câmara úmida e no tanque com água e cal). Posteriormente, os corpos-de-prova foram submetidos aos ensaios de compressão simples, tração na compressão diametral e absorção de água aos 7 e 28 dias. Os tratamentos que apresentaram melhores desempenhos foram: FBC lavada + fervida; FBC lavada + fervida + nata de cimento e FBC lavada + fervida + produtos químicos.

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Chou, Ku-Haw, i 周谷樺. "Centrifugal Dewatering of Compressible Cakes". Thesis, 1997. http://ndltd.ncl.edu.tw/handle/73929782969863102551.

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碩士
淡江大學
化學工程學系
85
The Al2O3 , CaCO3 , and Talc are used as experimental samples to study the mechanism of centrifugal dewatering. This study is divided into two parts. In the first part we used the Al2O3 which form a incompressible cake.From the experiment we found that most of the dewatering of Al2O3 cake is in the funicular state,therefor the relationships between the capillary pressure and the saturation of cake can be regressed as power type,while the permeability and the saturation of curve is exponential type.In the second part we used the powders which could form compressible cakes as our samples, including CaCO3 and Talc .The major dewatering mechanism of CaCO3 was the compression of cake, so the saturation would eventually be 1.Talc was the sample which had compressive and centrifugal dewatering effects at the same time.Comparing the dewatering rate of these two effects, we found that compressive dewatering was 1-1.5 times to pure centrifugal effect. Compressive effect took place ony in the beginning of dewatering, and it would decrease the porosity.By the variation of porosity , we could use the empirical equation of expression to find the value of solid compressive pressure, and to predict the compressive rate.

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Wang, Hsueh-Yung, i 王學泳. "The Impact of Business Salepersons’ Compressive Strength on their Performance - Case Study of a Commercial Bank in Taiwan". Thesis, 2017. http://ndltd.ncl.edu.tw/handle/h8yqnk.

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碩士
國立暨南國際大學
管理學院經營管理碩士學位學程碩士在職專班
105
Taiwan's financial industry with the free economy and information into a high degree of maturity and become more mature. The adaptability and stability of business staff in banks are getting the extreme attention, this study is the financial business personnel as the object of observation. The results of the study show that under the rigorous reliability and validity of the assessment, the completion of the performance of business performance for the development of the scale. The following performance traces affect the performance of the results of the results. In addition, T-test analysis, the personal characteristics of the business staff for their performance has a different impact.

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Wang, Chih-Fang, i 王志方. "Improvement of the Compressive Strength of Sapphire Double-sided Polishing Wafer Using Six Sigma DMAIC: A Case Study". Thesis, 2017. http://ndltd.ncl.edu.tw/handle/v4j9gd.

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Książki na temat "Compressible cake"

Hugh L. Dryden Flight Research Center., red. Unsteady aerodynamics: Subsonic compressible inviscid case. Edwards, Calif: National Aeronautics and Space Administration, Dryden Flight Research Center, 1999.

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Dey, Nilanjan, Mahdi Khosravy i Carlos Agusto Duque. Compressive Sensing in Health Care. Elsevier Science & Technology, 2020.

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Dey, Nilanjan, Mahdi Khosravy i Carlos Agusto Duque. Compressive Sensing in Health Care. Elsevier Science & Technology Books, 2020.

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Katirji, Bashar. Case 8. Redaktor Bashar Katirji. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780190603434.003.0012.

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Peroneal (fibular) neuropathy is the most common entrapment/compressive mononeuropathy in the lower extremity, often presenting with foot drop and numbness. The majority of the lesions are across the fibular neck, but more proximal and distal lesions exist. This case presents the clinical and electrodiagnostic findings in peroneal neuropathy and discusses in detail the differential diagnoses of foot drop. It highlights the importance of distinguishing peroneal nerve lesions from L5 radiculopathy, lumbar plexopathy, and sciatic neuropathy. Causes of acute and subacute peroneal mononeuropathies are emphasized.

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Katirji, Bashar. Case 16. Redaktor Bashar Katirji. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780190603434.003.0020.

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Neuralgic amyotrophy is a relatively uncommon disorder but important to recognize since it may be confused with brachial plexopathy, cervical radiculopathy and entrapment/compressive mononeuropathies of the upper extremity. Neuralgic amyotrophy is also known as acute brachial neuritis, acute brachial plexitis, and Parsonage-Turner syndrome. This case highlights the variable clinical and electrodiagnostic findings encountered in patients with neuralgic amyotrophy, with special attention to the most common mononeuropathies affected in this disorder. This include the long thoracic nerve, axillary nerve, phrenic nerve and anterior interosseous nerve. The peculiar needle electromyography findings associated with neuralgic amyotrophy, including selective motor branch involvement, are also discussed.

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Części książek na temat "Compressible cake"

Tiller, Frank M., i Joseph R. Crump. "Recent Advances in Compressible Cake Filtration Theory". W Mathematical Models and Design Methods in Solid-Liquid Separation, 3–24. Dordrecht: Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-009-5091-7_2.

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Butler, Frank K. "Compressible Hemorrhage". W Encyclopedia of Trauma Care, 361–62. Berlin, Heidelberg: Springer Berlin Heidelberg, 2015. http://dx.doi.org/10.1007/978-3-642-29613-0_372.

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Plotnikov, Pavel, i Jan Sokołowski. "Nonstationary case. Existence theory". W Compressible Navier-Stokes Equations, 99–166. Basel: Springer Basel, 2012. http://dx.doi.org/10.1007/978-3-0348-0367-0_5.

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Weber, Hans Joachim. "Applied physics of compressible and incompressible fluids". W Critical Care Nephrology, 63–84. Dordrecht: Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-011-5482-6_7.

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Unsöld, R. "Selected Case Reports". W Compressive Optic Nerve Lesions at the Optic Canal, 87–127. Berlin, Heidelberg: Springer Berlin Heidelberg, 1989. http://dx.doi.org/10.1007/978-3-642-73382-6_9.

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Wakeman, Richard J. "Filtration Theory: Formation and Structure of Compressible Filter Cakes". W Mathematical Models and Design Methods in Solid-Liquid Separation, 48–82. Dordrecht: Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-009-5091-7_4.

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Kuhn, Max, i Kjell Johnson. "Case Study: Compressive Strength of Concrete Mixtures". W Applied Predictive Modeling, 225–43. New York, NY: Springer New York, 2013. http://dx.doi.org/10.1007/978-1-4614-6849-3_10.

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Wang, Tianmeng, Hua Wang i Guojin Tang. "Benchmarking the Star-CCM+ Compressible Flow Solver by Simulating Typical Compressible Flow Problems: A Case Study and Comparison". W Theory, Methodology, Tools and Applications for Modeling and Simulation of Complex Systems, 379–91. Singapore: Springer Singapore, 2016. http://dx.doi.org/10.1007/978-981-10-2669-0_41.

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Elsenaar, A. "The International Vortex Flow Experiment: A Test Case for Compressible Euler Codes". W Notes on Numerical Fluid Mechanics and Multidisciplinary Design, 39–53. Wiesbaden: Vieweg+Teubner Verlag, 1989. http://dx.doi.org/10.1007/978-3-322-87875-5_3.

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Monasse, Laurent, Virginie Daru, Christian Mariotti i Serge Piperno. "A Conservative Coupling Method for Fluid-Structure Interaction in the Compressible Case". W Computational Fluid Dynamics 2010, 473–78. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-17884-9_59.

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Streszczenia konferencji na temat "Compressible cake"

Grahn, Alexander, Eckhard Krepper, Frank-Peter Weiß, So¨ren Alt, Wolfgang Ka¨stner, Alexander Kratzsch i Rainer Hampel. "Implementation of a Pressure Drop Model for the CFD Simulation of Clogged Containment Sump Strainers". W 17th International Conference on Nuclear Engineering. ASMEDC, 2009. http://dx.doi.org/10.1115/icone17-75249.

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The present study aims at modelling the pressure drop of flows across growing cakes of compressible, fibrous materials which may form on the upstream side of containment sump strainers after a loss-of-coolant accident (LOCA). The model developed is based on the coupled solution of a differential equation for the change of the pressure drop in terms of superficial liquid velocity and local porosity of the fibre cake and a material equation that accounts for the compaction pressure dependent cake porosity. Details of its implementation into a general-purpose three-dimensional computational fluid dynamics code (CFD) are given. An extension to this basic model is presented, which simulates the time dependent clogging of the fibre cake due to capturing of suspended particles as they pass trough the cake. The extended model relies on empirical relations which model the change of pressure drop and removal efficiency in terms of particle deposit in the fibre cake.

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Ho¨hne, Thomas, Alexander Grahn, So¨ren Kliem, Ulrich Rohde i Frank-Peter Weiss. "Numerical Simulation of the Insulation Material Transport to a PWR Core Under Loss of Coolant Accident Conditions". W 18th International Conference on Nuclear Engineering. ASMEDC, 2010. http://dx.doi.org/10.1115/icone18-29034.

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In 1992, strainers on the suction side of the ECCS pumps in Barseba¨ck NPP Unit 2 became partially clogged with mineral wool because after a safety valve opened the steam impinged on thermally-insulated equipment and released mineral wool. This event pointed out that strainer clogging is an issue in the course of a loss-of-coolant accident. Modifications of the insulation material, the strainer area and mesh size were carried out in most of the German NPPs. Moreover, back flushing procedures to remove the mineral wool from the strainers and differential pressure measurements were implemented to assure the performance of emergency core cooling during the containment sump recirculation mode. Nevertheless, it cannot be completely ruled out, that a limited amount of small fractions of the insulation material is transported into the RPV. During a postulated cold leg LOCA with hot leg ECC injection, the fibers enter the upper plenum and can accumulate at the fuel element spacer grids, preferably at the uppermost grid level. This effect might affect the ECC flow into the core and could result in degradation of core cooling. It was the aim of the numerical simulations presented to study where and how many mineral wool fibers are deposited at the upper spacer grid. The 3D, time dependent, multi-phase flow problem was modelled applying the CFD code ANSYS CFX. The CFD calculation does not yet include steam production in the core and also does not include re-suspension of the insulation material during reverse flow. This will certainly further improve the coolability of the core. The spacer grids were modelled as a strainer, which completely retains all the insulation material reaching the uppermost spacer level. There, the accumulation of the insulation material gives rise to the formation of a compressible fibrous cake, the permeability of which to the coolant flow is calculated in terms of the local amount of deposited material and the local value of the superficial liquid velocity. Before the switch over of the ECC injection from the flooding mode to the sump mode, the coolant circulates in an inner convection loop in the core extending from the lower plenum to the upper plenum. The CFD simulations have shown that after starting the sump mode, the ECC water injected through the hot legs flows down into the core at so-called “breakthrough channels” located at the outer core region where the downward leg of the convection roll had established. The hotter, lighter coolant rises in the centre of the core. As a consequence, the insulation material is preferably deposited at the uppermost spacer grids positioned in the breakthrough zones. This means that the fibers are not uniformly deposited over the core cross section. When the inner recirculation stops later in the transient, insulation material can also be collected in other regions of the core. Nevertheless, with a total of 2.7 kg fiber material deposited at the uppermost spacer level, the pressure drop over the fiber cake is not higher than 8 kPa and all the ECC water could still enter the core.

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Sheng Hu i Jindong Tan. "Compressive mobile sensing for robotic mapping". W 2008 IEEE International Conference on Automation Science and Engineering (CASE 2008). IEEE, 2008. http://dx.doi.org/10.1109/coase.2008.4626560.

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Lin, Chen-Chi, i Clayton D. Mote. "The Criteria Predicting Wrinkling of Thin, Flat, Rectangular Webs". W ASME 1995 Design Engineering Technical Conferences collocated with the ASME 1995 15th International Computers in Engineering Conference and the ASME 1995 9th Annual Engineering Database Symposium. American Society of Mechanical Engineers, 1995. http://dx.doi.org/10.1115/detc1995-0148.

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Abstract A web is termed wrinkled when one of the in-plane principal stresses is tensile and the other is sufficiently compressive. A criterion is derived that predicts wrinkling of isotropic, compressible rectangular webs under uniform in-plane principal stresses. The compressive stress at impending wrinkling depends on the flexural stiffness, and it equals zero in the case of a membrane. A criterion of wrinkling is also derived using isotropic, incompressible membrane theory. This criterion predicts an infinite number of wrinkle waves in a wrinkled region. With small flexural stiffness, the number of wrinkle waves becomes finite at wrinkling and it is predictable along with the shape and the size of the wrinkled region. The number of the wrinkle waves increases as the aspect ratio of the rectangular web increases, as the in-plane principal tension increases, and as the flexural stiffness decreases. Analyses of wrinkling of a rectangular web under simple shear and uniform longitudinal stretching illustrate the above predictions.

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Zhang, Pengfei, Guiwen Wang, Xiujuan Zhang i Yong-qing Li. "Parallel acquisition of 2D multifocal Raman spectroscopy using compressive sensing". W Optics in Health Care and Biomedical Optics X, redaktorzy Qingming Luo, Xingde Li, Ying Gu i Dan Zhu. SPIE, 2020. http://dx.doi.org/10.1117/12.2570487.

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Ghorbanpour, Amin B., i Xinbao Yu. "Unconfined Compressive Strength of Mine Tailings Amended with Fly Ash". W Eighth International Conference on Case Histories in Geotechnical Engineering. Reston, VA: American Society of Civil Engineers, 2019. http://dx.doi.org/10.1061/9780784482117.012.

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Lal, B. Ram Rathan, Vicky A. Hinge, Sonali S. Nawkhare i K. Shanker. "Experimental Studies on Bottom Ash and Blast Furnace Slag Based Geomaterial under Compressive Loading". W Eighth International Conference on Case Histories in Geotechnical Engineering. Reston, VA: American Society of Civil Engineers, 2019. http://dx.doi.org/10.1061/9780784482148.024.

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Sun, Hongjian, Arumugam Nallanathan, Jing Jiang i H. Vincent Poor. "Compressive autonomous sensing (CASe) for wideband spectrum sensing". W ICC 2012 - 2012 IEEE International Conference on Communications. IEEE, 2012. http://dx.doi.org/10.1109/icc.2012.6363831.

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Civan, Faruk. "Phenomenological Filtration Model for Highly Compressible Filter Cakes Involving Non-Darcy Flow". W SPE Mid-Continent Operations Symposium. Society of Petroleum Engineers, 1999. http://dx.doi.org/10.2118/52147-ms.

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Shih, C., J. Beahn, A. Krothapalli i M. S. Chandrasekhara. "Control of Compressible Dynamics Stall Using Microjets". W ASME/JSME 2003 4th Joint Fluids Summer Engineering Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/fedsm2003-45627.

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Control of the dynamic stall process of an NACA 0015 airfoil undergoing periodic pitching motion is investigated experimentally in a high-speed wind tunnel facility. Multiple microjet nozzles distributed uniformly in the first 15% chord from the airfoil’s leading edge are used for the control. Point Diffraction Interferometry (PDI) technique is used to characterize the control effectiveness, both qualitatively and quantitatively. The microjet control has been found to be very effective in suppressing both the emergence of the dynamic stall vortex and the associated massive flow separation at the entire operating range of angles of attack. At the high Mach number case (M = 0.4), the use of microjets appears to eliminate the shock structures that are responsible for triggering the shock-induced separation, establishing the fact that the use of microjets is effective even in controlling dynamic stall with a strong compressibility effect. In general, microjet jet control has an overall positive effect in terms of maintaining leading edge suction pressure and preventing flow separation.

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Raporty organizacyjne na temat "Compressible cake"

Watts, Benjamin E., Danielle E. Kennedy, Ethan W. Thomas, Andrew P. Bernier i Jared I. Oren. Long-Term Durability of Cold Weather Concrete : Phase II. Engineer Research and Development Center (U.S.), styczeń 2021. http://dx.doi.org/10.21079/11681/39579.

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Recent laboratory results confirm that it is possible to protect concrete from freezing solely using chemical admixtures and indicate that the amount of admixture required may be significantly less than previously recommended. Researchers have also verified that admixture-based freeze protection can produce concrete that is durable to winter exposure for a minimum of 20 years, through petrographic examination of core specimens obtained from past field demonstrations. Freeze protection for concrete using chemical admixtures alone has been an area of active research for 3 decades; however, the most recent methodology recommends very high addition rates of accelerating and corrosion inhibiting admixtures, which result in significant challenges, including slump loss, rapid setting, and potentially excessive temperature rise. As part of a laboratory study, researchers systematically varied the dosage of freeze protection admixtures used in concrete cured in a 23 °F environment. Preliminary findings indicate that a 50% reduction in admixture dose maintained adequate freeze protection and resulted in compressive strengths exceeding those of room-temperature controls at 7 and 28 days. The combination of improved handling, reduced cost, and verified durability associated with the use of admixtures for freeze protection makes a compelling case for broader adoption of this technique in winter operations

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