Дисертації з теми "Physicl properties"
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Noh, Tae Won. "Optical properties of some metal-insulator composites /." The Ohio State University, 1986. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487266362336089.
Повний текст джерелаKhammang, Alex. "Investigating Mechanical Properties of Metallic Nanowires using Molecular Dynamics." VCU Scholars Compass, 2014. http://scholarscompass.vcu.edu/etd/3409.
Повний текст джерелаAdams, Alyssa M. "Exploring the Properties of Mira-Type Stars with Spectropolarimetry." Digital Commons @ East Tennessee State University, 2013. https://dc.etsu.edu/honors/118.
Повний текст джерелаBehera, Swayamprabha. "STABILITY AND SPECTROSCOPIC PROPERTIES OF NEGATIVE IONS." VCU Scholars Compass, 2011. http://scholarscompass.vcu.edu/etd/210.
Повний текст джерелаNielbock, Markus. "Physical properties of protostars." [S.l.] : [s.n.], 2001. http://deposit.ddb.de/cgi-bin/dokserv?idn=962916951.
Повний текст джерелаAmado, Pedro J. "Physical properties of starspots." Thesis, Queen's University Belfast, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.387975.
Повний текст джерелаNilsson, Frederik. "Alkylglucosides physical-chemical properties /." Lund : Physical Chemistry 1, Center for Chemistry and Chemical Engineering, Lund University, 1998. http://catalog.hathitrust.org/api/volumes/oclc/39761789.html.
Повний текст джерелаNeglur, Rekha R. "Physical properties of solid-state erythromycin derived compounds." Thesis, Nelson Mandela Metropolitan University, 2016. http://hdl.handle.net/10948/7228.
Повний текст джерелаLe, Brun Virginie. "Physical Properties of Protein Formulations." Diss., lmu, 2009. http://nbn-resolving.de/urn:nbn:de:bvb:19-109666.
Повний текст джерелаLivings, Simon John. "Physical properties of starch wafers." Thesis, University of Cambridge, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.321480.
Повний текст джерелаMicciche, Salvatore. "Physical properties of gravitational solitons." Thesis, Loughborough University, 1999. https://dspace.lboro.ac.uk/2134/33196.
Повний текст джерелаTang, Xiaoli Dong Jianjun. "Theoretical study of thermal properties and thermal conductivities of crystals." Auburn, Ala, 2008. http://repo.lib.auburn.edu/EtdRoot/2008/SUMMER/Physics/Dissertation/Tang_Xiaoli_9.pdf.
Повний текст джерелаSheung-kei, Winnie S. "Cooking quality: physical and biochemical properties of lentils (Lens culinaris)." Thesis, Curtin University, 2000. http://hdl.handle.net/20.500.11937/2528.
Повний текст джерелаMcCoy, James Martin. "The physical properties of magnetic inks." Thesis, Durham University, 1988. http://etheses.dur.ac.uk/6646/.
Повний текст джерелаGauthier, Sylvie 1955. "Synthesis and physical properties of styrene-vinylpyridinium ionomers of various architectures." Thesis, McGill University, 1985. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=72029.
Повний текст джерелаThe Tg's of the random ionomers were found to increase regularly with increasing ion content, at a rate of about 3.5(DEGREES)C per mole % of ions. In contrast with other ionomeric systems studied before, however, these materials showed only one peak in their tan delta curves, associated with the Tg of the matrix. The absence of a second, high temperature peak suggests the absence of clusters in these vinylpyridinium ionomers, at least at temperatures above their Tg. The storage modulus curves were in agreement with this conclusion.
An elaborate polymerization line was constructed for the production of the block copolymers by living anionic polymerization; a basic design was modified considerably and two new units were completely designed in this laboratory. Only one Tg, associated with the Tg of the polystyrene phase, was observed in DSC measurements for the resulting ionomers. The glass transition of the ionic domains was detected in dynamic mechanical measurements as a shoulder on the low temperature side of the polystyrene transition. This unexpected low value for the Tg of the ionic domains was attributed to plasticization by water.
Sheung-kei, Winnie S. "Cooking quality: physical and biochemical properties of lentils (Lens culinaris)." Curtin University of Technology, School of Public Health, 2000. http://espace.library.curtin.edu.au:80/R/?func=dbin-jump-full&object_id=10354.
Повний текст джерела(Matilda).Cooking significantly reduced the hardness of the seeds (R= - 0.752 to - 0.89) and promoted mineral leaching (P < 0.05). The interaction between environment and genotype had a significant effect on seed size, seed coat thickness, mineral composition (Phytic acid, Ne, K+, Mg2+, Ca2+ M+, Fe2+ and CU2+) and hardness (P< 0.05). Seed coat thickness did not correlated with this rate of water uptake and cooking quality. Growing environments had a greater influence on the cooking quality than genotypes. Lentils grown at Pingaring are generally had a higher in Phyti acid content, better mineral retention and were harder in texture than those grown at Mullewa.The results of this study implicated that the peak compression force (220 N) was identified as an indicator to determine the cooking time of lentil cultivars. Texture Profile Analysis (TPA) is a useful method to evaluate various texture characteristics (hardness, cohesiveness, chewiness, springiness, gumminess and adhesiveness) of lentil cultivars. Cooking quality of lentil is significantly affected by the effect of varieties and growing locations. However, not the various biochemical compositions (phytic acid and minerals) and the thickness of seed coat have no significant effect on the cooking quality of lentil.
Skedung, Lisa. "Tactile perception : role of physical properties." Licentiate thesis, Stockholm : Skolan för kemivetenskap, Kungliga Tekniska högskolan, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-11891.
Повний текст джерелаPotužák, Marcel. "Physico-Chemical Properties of Silicate Melts." Diss., lmu, 2006. http://nbn-resolving.de/urn:nbn:de:bvb:19-55228.
Повний текст джерелаMitsch, Carsten. "Structure and physical properties of Inovirus." Thesis, University of Cambridge, 1998. https://www.repository.cam.ac.uk/handle/1810/251636.
Повний текст джерела顧若愚 and Ruoyu Gu. "Physical properties of some magnetic systems." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2000. http://hub.hku.hk/bib/B31240173.
Повний текст джерелаLim, Wen Huei. "Physico-chemical properties of ultraflexible vesicles." Thesis, King's College London (University of London), 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.417109.
Повний текст джерелаKefaleas, Christos. "Physical properties of molecules in polyolefins." Thesis, University of Sussex, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.391878.
Повний текст джерелаGilchrist, H. E. M. "Physical properties of continuous random networks." Thesis, Imperial College London, 1987. http://hdl.handle.net/10044/1/38330.
Повний текст джерелаRogers, Salman Samson. "Some physical properties of amyloid fibrils." Thesis, University of Cambridge, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.613906.
Повний текст джерелаGupta, Saloni. "Physico-chemical properties of polypropylene glycols." Thesis, University of Greenwich, 2015. http://gala.gre.ac.uk/21538/.
Повний текст джерелаWu, Jiajun Ph D. Massachusetts Institute of Technology. "Computational perception of physical object properties." Thesis, Massachusetts Institute of Technology, 2016. http://hdl.handle.net/1721.1/103736.
Повний текст джерелаCataloged from PDF version of thesis.
Includes bibliographical references (pages 49-50).
We study the problem of learning physical object properties from visual data. Inspired by findings in cognitive science that even infants are able to perceive a physical world full of dynamic content at a early age, we aim to build models to characterize object properties from synthetic and real-world scenes. We build a novel dataset containing over 17, 000 videos with 101 objects in a set of visually simple but physically rich scenarios. We further propose two novel models for learning physical object properties by incorporating physics simulators, either a symbolic interpreter or a mature physics engine, with deep neural nets. Our extensive evaluations demonstrate that these models can learn physical object properties well and, with a physic engine, the responses of the model positively correlate with human responses. Future research directions include incorporating the knowledge of physical object properties into the understanding of interactions among objects, scenes, and agents.
by Jiajun Wu.
S.M.
Nico, Cláudio Miguel Silva. "Niobium oxides and niobates physical properties." Doctoral thesis, Universidade de Aveiro, 2015. http://hdl.handle.net/10773/14851.
Повний текст джерелаNiobium oxides have been pointed as an alternative to tantalum in the production of solid electrolytic capacitors, with advantages regarding the dielectric constant, density and price. In this work, it is intended to create a new family of niobium oxides based capacitors, adapting the technology and production line currently used with tantalum. Despite the known potentialities of niobium oxides, and many types of niobates, in several technological applications, the understanding of these oxide systems is still noticeably insufficient. Hence, a careful bibliographic review is shown, which evidences the complexity of these materials, the difficulty in identifying of their different phases and polymorphs, as well as in the interpretation of their properties. In this context, several fundamental studies on niobium oxides are presented, namely structural, microstructural, optical and electrical characterizations, which allow not only to contribute in an important way for the general knowledge of the physical properties of these materials, but also to advance to a sustained development of the niobium oxides based solid electrolytic capacitors. Several processing parameters were studied, clearing the way towards the creation of a prototype. It was also decided to perform a preliminary study on the synthesis and characterization of other oxide systems based in niobium, namely rare-earth orthoniobates (RENbO4), which interest has been related to their optical properties and protonic conductivity. Hence, single and polycrystalline samples of RENbO4 were synthesized and characterized structural, optical and electrically, leaving open an interesting future work.
Os óxidos de nióbio têm sido apontados como uma alternativa ao tântalo na produção de condensadores eletrolíticos sólidos, com vantagens relativamente à constante dielétrica, densidade e preço. Neste trabalho, pretende-se criar uma nova família de condensadores de óxidos de nióbio, adaptando a tecnologia e linha de produção atualmente utilizada com o tântalo. Apesar das já conhecidas potencialidades dos óxidos de nióbio, e vários tipos de niobatos, em diversas aplicações tecnológicas, o conhecimento destes sistemas óxidos é ainda manifestamente insuficiente. Assim, é apresentada uma cuidadosa revisão bibliográfica que evidencia a complexidade destes materiais, as dificuldades na identificação das suas várias fases e polimorfos, assim como na interpretação das suas propriedades. Neste contexto, são apresentados vários estudos fundamentais em óxidos de nióbio, nomeadamente caracterização estrutural, microestrutural, ótica e elétrica, que permitem não só contribuir de uma forma importante para o conhecimento geral das propriedades físicas destes materiais, como avançar para o desenvolvimento sustentado dos condensadores eletrolíticos sólidos à base de óxidos de nióbio. Estudaram-se vários parâmetros de processamento abrindo caminho para a criação de um protótipo. Avançou-se também para um estudo preliminar da síntese e caracterização de outros sistemas óxidos à base de nióbio, nomeadamente ortoniobatos de terras-raras (RENbO4), cujo interesse tem sido manifestado relativamente às suas propriedades óticas e de condutividade protónica. Assim, amostras mono e policristalinas de RENbO4 foram sintetizadas e caracterizadas estrutural, ótica e eletricamente, deixando em aberto um interessante trabalho futuro.
Hills, Romilly D. Y. "Physical properties of graphene nano-devices." Thesis, Loughborough University, 2015. https://dspace.lboro.ac.uk/2134/17993.
Повний текст джерелаGu, Ruoyu. "Physical properties of some magnetic systems /." Hong Kong : University of Hong Kong, 2000. http://sunzi.lib.hku.hk/hkuto/record.jsp?B21981942.
Повний текст джерелаAndré, Tomas. "Benchmarking Physical Properties of Water Models." Thesis, Uppsala universitet, Molekyl- och kondenserade materiens fysik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-388336.
Повний текст джерелаVatten är en av de fundamentala byggstenarna för liv, därmed är det även fundamentalt för biologi, kemi och delar av fysiken. Att förstå hur vatten beter sig och interagerar är en stor fråga inom dessa tre grenar av vetenskap. Med molekyldynamik går det att utföra numeriska simuleringar som kan användas som hjälpmedel för att bygga en djupare förståelse för riktigt vatten. I den här uppsatsen så har molekyldynamik använts till att simulera vanliga rigida 3 punkts parametiseringar av vatten för att se hur bra de kan replikera vissa egenskaper som funktioner av temperatur. Simuleringen är gjord med hjälp av molekyldynamik programet GROMACS som ger en fullständig uppsättning verktyg för att simulera och analysera molekylsystem. Alla simuleringar och analys är automatiserat med ett pythonprogram och en fil för parametrar. De allra flesta modeller följer liknande trender och är giltiga inom små temperaturintervall.
Maruatona, Gaamangwe Nehemiah. "Physico-chemical, nutritional and functional properties of defatted marama bean flour." Diss., Pretoria : [s.n.], 2009. http://upetd.up.ac.za/thesis/available/etd-06112009-142412/.
Повний текст джерелаOrrah, D. J. "Physical properties of cyclic and linear poly(dimethylsiloxanes)." Thesis, University of York, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.381327.
Повний текст джерелаHu, Zhonghan. "Transport properties, optical response and slow dynamics of ionic liquids." Diss., University of Iowa, 2007. http://ir.uiowa.edu/etd/160.
Повний текст джерелаMalec, Christopher Evan. "Transport in graphene tunnel junctions." Diss., Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/41140.
Повний текст джерелаEppell, Steven Joseph. "Platinum on graphite (0001): A model system for the study of physical and chemical properties of small metal islands." Case Western Reserve University School of Graduate Studies / OhioLINK, 1991. http://rave.ohiolink.edu/etdc/view?acc_num=case1055523982.
Повний текст джерелаGhorai, Suman. "Chemical, physical and mechanical properties of nanomaterials and its applications." Diss., University of Iowa, 2013. https://ir.uiowa.edu/etd/2501.
Повний текст джерелаBrown, Dawn Gayatri. "Physical characterisation of a commercial magnesium stearate powder." Thesis, University College London (University of London), 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.307588.
Повний текст джерелаRhyner, Jakob. "Physical and mathematical properties of quasiperiodic structures /." [S.l.] : [s.n.], 1987. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=8451.
Повний текст джерелаDíez, Orrite Silvia. "Physico-chemical properties of polymers at interfaces." Doctoral thesis, Universitat Rovira i Virgili, 2002. http://hdl.handle.net/10803/8511.
Повний текст джерелаmonomers joined together by covalent bonds. Polymers have existed in natural form
since life began and those such as DNA, RNA, proteins and polysaccharides are some
of the most important macromolecules found in plant and animal life. From the earliest
times, the man has used many of these polymers as materials for providing clothing,
decoration, tools, weapons and other requirements. However, the origins of today's
polymer industry commonly are accepted as being in the nineteenth century when
important discoveries were made concerning to the modification of certain natural
polymers, as cellulose. The use of synthetic and natural polymers as stabilisers for
colloid systems (sols, dispersions, microemulsions, etc.) is becoming more important
everyday in contemporary life. Polymer additives can be applied in preconcentrations
and dehydration of suspensions in mineral processing, purification of wastewater and
even in nutritional and pharmaceutical emulsions being their importance related to the
characteristics of the process and the properties that they show. The present work aims
to develop appropriate numerical and analytical modelling techniques, which can
describe (considering the formation of loops and tails) the structure of a polymeric layer
adsorbed on heterogeneous surfaces; this adsorbed layer is an relevant factor in the
properties showed by this kind of materials. Taking into account this, the methodology
known as Single Chain Mean Field (SCMF) (originally used to study micellar
aggregates and grafted polymers) was modified to apply on polymer adsorption
problems. In this way, it was possible to calculate numerically properties that can be
experimentally measured, such as total monomer volume fraction profiles, loop and tail
volume fraction profiles, adsorbance or the thickness of the adsorbed layer. The
structure of the polymeric layer was examined both for flat and spherical (colloidal
particles) surface geometries. When compared with other well established
methodologies for the numerical simulation of polymeric systems, this new version of
SCMF was found to be more efficient due to the improved sampling of the polymer
chain configuration space.
Thus, SCMF method results, in the case of the adsorption on flat surfaces, compare well
with those obtained either with Monte Carlo simulations or with the method developed
in the 80s by Scheutjens and Fleer (SCF). Due to the lack of studies focusing to polymer
adsorption on colloidal particles, our results have been the first to present quantitative
predictions of the structure of the polymeric layer adsorbed on a spherical surface. Thus,
we have demonstrated the dependence of the adsorbed polymer layer with the size of
the colloidal particle as well as the characteristic lengths that influence on it. Finally, in
this work an analytical approach for the description of polymer-colloidal mixtures has
been developed which compares well with the numerical results obtained from the
SCMF methodology. Furthermore, the analytical approach is able to predict system
behaviours, as for example the formation of gels.
Un polímero es una molécula de grandes dimensiones formada de pequeñas unidades
llamadas monómeros, los cuales se encuentran unidos por medio de enlaces covalentes.
Los polímeros han existido de forma natural desde el comienzo de la vida, y aquellos
como el DNA, RNA o las proteínas son algunos de los polímeros más importantes
encontrados tanto en la vida animal como en la vegetal. Desde siempre el hombre ha
utilizado muchos de estos polímeros como materiales para hacer ropa, decoración,
herramientas, etc. Sin embargo, el origen de la industria de polímeros que conocemos
hoy en día se produjo en el siglo 19, gracias a importantes descubrimientos dentro de la
modificación de ciertos polímeros naturales, como la celulosa. El uso de polímeros
sintéticos y naturales como estabilizadores de sistemas coloidales (dispersiones,
microemulsiones, etc.) juega en nuestros días un papel importante. Los polímeros
utilizados como aditivos, pueden ser aplicados en preconcentraciones y deshidratación
de suspensiones dentro de procesos minerales, tratamiento de aguas residuales e incluso
los podemos encontrar dentro de la industria farmacéutica y alimentaria, donde su
importancia es debida a la procesabilidad y propiedades que ellos exhiben. El trabajo
que se presenta es orientado al desarrollo de técnicas de modelización, tanto analíticas
como computacionales, y su aplicación en la descripción (por medio de la formación de
bucles y colas) de la estructura de la capa de polímeros adsorbida en superficies
heterogéneas, siendo dicha capa de polímeros un factor importante en las propiedades
que este tipo de materiales presentan. Con este propósito, la metodología conocida
como Single Chain Mean Field, utilizada anteriormente tanto para el estudio de
agregados micelares como de polímeros anclados en superficies, ha sido modificada
para describir la adsorción de polímeros en superficies. Así se han podido calcular
numéricamente propiedades medibles experimentalmente como los perfiles de la
fracción en volumen de monómeros totales, además de los pertenecientes a los bucles y
colas, adsorbancia o el espesor de la capa adsorbida, para geometrías de la superficie
absorbente tanto plana como esférica (partículas coloidales). En su comparación con
otras metodologías, ya establecidas para la simulación numérica dentro de la física de
polímeros, la aplicación de esta nueva versión del Single Chain Mean Field (SCMF)
ha resultado ser más eficiente debido a un mejor muestreo del espacio de
configuraciones de las cadenas poliméricas. De este modo, comparando los resultados
obtenidos a partir del SCMF, con aquellos obtenidos mediante técnicas de simulación
Monte Carlo o la teoría desarrollada en los años 80 por Scheutjens y Fleer (SCF), se ha
podido encontrar un buen acuerdo en las propiedades calculadas para el caso de la
adsorción en superficies planas. Debido a la dificultad intrínseca del estudio de la
adsorción en superficies curvadas, nuestros resultados son los primeros que presentan
predicciones cuantitativas sobre la estructura de la capa que se forma sobre una
partícula coloidal. Así hemos podido comprobar la dependencia de la estructura de la
capa de polímeros adsorbidos con el tamaño de la partícula sobre la que se encuentran
adsorbidos además de las longitudes características de las cuales depende. Finalmente,
en este trabajo se ha desarrollado, también, una teoría analítica para la descripción de la
mezcla polímero-coloide. De este modo, los resultados numéricos obtenidos con el
SCMF han podido ser comparados con dicha teoría, obteniendo, de nuevo, un buen
acuerdo y predecir, además, comportamientos colectivos como la formación de geles.
Churakov, Sergey. "Physical-chemical properties of complex natural fluids." [S.l.] : [s.n.], 2001. http://deposit.ddb.de/cgi-bin/dokserv?idn=962849723.
Повний текст джерелаHaynes, Kaaren K. "Physical properties of laccase-mediator delignified pulps." Diss., Georgia Institute of Technology, 1998. http://hdl.handle.net/1853/5884.
Повний текст джерелаZysman-Colman, Eli. "The chemical and physical properties of polychalcogens." Thesis, McGill University, 2003. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=84864.
Повний текст джерелаTheoretical modeling on the relative ground state energies of dialkoxy disulfides is also described. It has been ascertained that the equilibrium position between the two isomers can be influenced by the ring size of the molecule; larger rings promote the dialkoxy disulfide isomer. These modeling studies were successfully corroborated experimentally. Of note is the synthesis of a new 8-membered ring dialkoxy disulfides as well as novel 7-membered ring thionosulfites. These compounds were also confirmed by single X-ray crystallography.
The kinetics of desulfurization of acyclic aromatic tri- and tetrasulfides is described. Tetrasulfides were found to transfer a sulfur atom to triphenylphosphine over ten times faster than their trisulfide analogues.
Le, Van Lich. "Multi-physics Properties in Topologically Nanostructured Ferroelectrics." 京都大学 (Kyoto University), 2016. http://hdl.handle.net/2433/217166.
Повний текст джерелаPforr, Janine. "Galaxy physical properties from population model fitting." Thesis, University of Portsmouth, 2011. https://researchportal.port.ac.uk/portal/en/theses/galaxy-physical-properties-from-population-model-fitting(c5eab7e4-a52f-4071-bb28-ff990b2496eb).html.
Повний текст джерелаRoach, Steven John. "Determination of the physical properties of melts." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/MQ60491.pdf.
Повний текст джерелаZhang, Shu. "Mechanical and physical properties of electrospun nanofibers." NCSU, 2009. http://www.lib.ncsu.edu/theses/available/etd-07102009-165411/.
Повний текст джерелаGhassemi, Ali. "Nonparametric geostatistical estimation of soil physical properties." Thesis, McGill University, 1987. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=63904.
Повний текст джерелаAlves, Luis. "Physical and chemical properties of gold nitride." Thesis, University of Newcastle Upon Tyne, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.512027.
Повний текст джерелаAlcock, Joseph Patrick. "Mechanical and physical properties of orthodontic archwires." Thesis, University of Bristol, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.492645.
Повний текст джерелаAstafyeva, Ksenia. "Physical and acoustical properties of fluorocarbon nanoparticles." Phd thesis, Université Pierre et Marie Curie - Paris VI, 2014. http://tel.archives-ouvertes.fr/tel-00960290.
Повний текст джерела