Author: Barry R. Jennings
Publisher: Springer Science & Business Media
ISBN: 1468434977
Category : Science
Languages : en
Pages : 387
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Book Description
Some seven years before Kerr's death, Larmor proposed that electric birefringence had its origin in the orientation of anisotropic molecules or elements within the apparently isotropic medium. The theory for this concept was formulated by Langevin. During the next half century, occasional measurements were made both to characterise the phenomenon and to evaluate the relevant physico-chemical parameters of pure liquids and molecular fluids. During the 1930-40 era, Staudinger and others demonstrated the existence in nature of giant molecules and colloidal particles. Since that time it has slowly but increasingly been realised that these big molecules or particles often have relatively large dipole moments, are generally anisotropic in structure and hence, in solution or suspension, give rise to significant electric birefringence signals. Furthermore, there have been three electronic innovations which have greatly eased the experimental measurement of the effect for such materials. These were the development of photomultiplier tubes for detection, of oscillo scope~ for display and of high voltage generators developing bursts or pulses of potential difference. The last mentioned enable the experi menter to study the Kerr effect not only for its amplitude but also in the time domain. The rates of molecular response to the switching of the electric field lead directly to information on the size and geo metry of the constituent molecules and particles in a dilute solution or suspension.
Author: Stoyl P. Stoylov
Publisher: CRC Press
ISBN: 1420009850
Category : Science
Languages : en
Pages : 615
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Book Description
Molecular and Colloidal Electro-Optics presents cohesive coverage from internationally recognized experts on new approaches and developments in both theoretical and experimental areas of electro-optic science. It comprises a well-integrated yet multi-disciplinary treatment of fundamental principles, strategies, and applications of electro-op
Author: Sonja Krause
Publisher: Springer Science & Business Media
ISBN: 1468439146
Category : Science
Languages : en
Pages : 515
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Book Description
The Advanced Study Institute on Molecular Electro-Optics was held on the campus of the Rensselaer Polytechnic Institute, Troy, New York, USA, from July 14 through July 24, 1980. This Advanced Study Institute was attended by sixteen invited lecturers and by forty-eight other participants. The present volume contains the texts of all of the invited lectures presented at the Institute. Although these lectures were supplemented by many animated discussions and by numerous short contributed papers, it was not possible to include these in the present volume. Molecular electro-optics is a difficult subject for research because it incorporates areas of theoretical physics such as elec tromagnetic theory and hydrodynamics of rotational diffusion, ex perimental physics such as lasers, optics, electric pulsers, and data collection via analog to digital converters and signal aver agers, and physical chemistry of macromolecules and colloids in solution (colloid science, biophysical chemistry, double layer polarization). This volume includes chapters on all of these subjects as well as introductions to magnets-optics and to elec trophoretic light scattering. The Advanced Study Institute was sponsored mainly by the North Atlantic Treaty Organization whose financial support made this meeting possible. Additional financial aid was supplied by the National Institutes of Health of the USA through their Fogarty International Center and the National Institute for Arthritis, Metabolism, and Digestive Diseases. Industrial contri buters consisted of the General Electric Company, Cober Electronics, and Malvern Scientific Corporation.
Author: Barry Randall Jennings
Publisher: CRC Press
ISBN:
Category : Art
Languages : en
Pages : 288
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Book Description
The use of the time-dependent electro-optical effect, and a variety of light scattering and spectroscopic techniques, have provided increasingly sophisticated information on on the behaviour and properties of molecules and particles in solution. These techniques can give information on high-field effects, macromolecules, gels, liquid crystals, membranes, colloidal particles, and similar materials. Latest results presented at this established series of conferences make this volume an important reference source for researchers in physics, chemistry and biology.
Author: 国立国会図書館 (Japan)
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 672
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Book Description
Author: Paolo Pasini
Publisher: Springer Science & Business Media
ISBN: 1402027605
Category : Science
Languages : en
Pages : 368
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Book Description
Liquid crystals, polymers and polymer liquid crystals are soft condensed matter systems of major technological and scientific interest. An understanding of the macroscopic properties of these complex systems and of their many and interesting peculiarities at the molecular level can nowadays only be attained using computer simulations and statistical mechanical theories. Both in the Liquid Crystal and Polymer fields a considerable amount of simulation work has been done in the last few years with various classes of models at different special resolutions, ranging from atomistic to molecular and coarse-grained lattice models. Each of the two fields has developed its own set of tools and specialized procedures and the book aims to provide a state of the art review of the computer simulation studies of polymers and liquid crystals. This is of great importance in view of a potential cross-fertilization between these connected areas which is particularly apparent for a number of experimental systems like, e.g. polymer liquid crystals and anisotropic gels where the different fields necessarily merge. An effort has been made to assess the possibilities of a coherent description of the themes that have developed independently, and to compare and extend the theoretical and computational techniques put forward in the different areas.
Author: National Library of Medicine (U.S.)
Publisher:
ISBN:
Category : Medicine
Languages : en
Pages :
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Book Description
First multi-year cumulation covers six years: 1965-70.
Author: Zdenek Sesták
Publisher: Springer Science & Business Media
ISBN: 9400979754
Category : Science
Languages : en
Pages : 230
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Book Description
Author: K.L. Mittal
Publisher: Springer Science & Business Media
ISBN: 1461579902
Category : Science
Languages : en
Pages : 527
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Book Description
This and its companion volumes 7,8, and 9 document the proceedings of the 6th International Symposium on Surfactants in Solution (SIS) held in New Delhi, India, August 18-22, 1986 under the joint auspices of the Indian Society for Surface Science and Technology, and Indian Institute of Technology, Delhi. As this symposium was a landmark -- it represented the tenth anniversary of this series of symposia -- so it is very apropos to reflect on how these symposia have evolved to their present size and status. The pedigree of this series of symposia goes back to 1976 when the premier symposium in this series was held. Actually in 1976 it was a modest start and it was not possible at that time to gaze at the crystal ball and predict what would be the state of affairs in 1986. For historical purposes, it should be recorded here that the first symposium was held in Albany, NY, under the title "Micellization, Solubilization and Microemulsions"; the second symposium was christened "Solution Chemistry of Surfactants" and was held in Knoxville, TN, in 1978; the venue for the third symposium in 1980 was Potsdam, NY, and it was dubbed "International Symposium on Solution Behavior of Surfactants: Theoretical and Applied Aspects.
Author: Hans-Jürgen Hinz
Publisher: Springer Science & Business Media
ISBN: 3642711146
Category : Science
Languages : en
Pages : 462
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Book Description
The strong trend in the Biological Sciences towards a quantitative characterization of processes has promoted an increased use of thermo dynamic reasoning. This development arises not only from the well known power of thermodynamics to predict the direction of chemical change, but also from the realization that knowledge of quantitative thermodynamic parameters provides a deeper understanding of many biochemical problems. The present treatise is concerned primarily with building up a reliable data base, particularly ofbiothermodynamic and related quantities, such as partial specific volumes and compressibilities, which will help scientists in basic and applied research to choose correct data in a special field that may not be their own. Most chapters reflect this emphasis on data provision. However, it was also felt that the expert user deserved information on the basic methodology of data acquisition and on the criteria of data selection. Therefore all tables are preceded by a critical evaluation of the techniques as well as a survey of the pertinent studies in the corresponding areas. The surveys are usually self-consistent and provide references to further sources of data that are important but not covered in the present volume. The reader will realize that in different chapters, different symbols have be~n used for the same properties. This unfortunate situation is particularly obvious in those chapters where partial specific or molar quantities had to be introduced; however, it also occurs in those contributions concerning phase changes of macromolecules.
