Observations on the Thermal Degradation of Courtelle Acrylic Fibre II- Changes in Physical Properties

2008 ◽  
Vol 81 (2) ◽  
pp. 55-59 ◽  
Author(s):  
J. W. BELL ◽  
R. K. MULCHANDANI
Keyword(s):  
Thermal Degradation ◽  
Physical Properties ◽  
Acrylic Fibre

Physical properties of açai-berry pulp and kinetics study of its anthocyanin thermal degradation

2018 ◽  
Vol 239 ◽  
pp. 104-113 ◽  
Author(s):  
Henrique C.B. Costa ◽  
Danylo O. Silva ◽  
Luiz Gustavo M. Vieira
Keyword(s):  
Thermal Degradation ◽  
Physical Properties ◽  
Kinetics Study ◽  
Acai Berry

Synthesis and Properties of Novel Chiral Ionic Liquids from L-Proline

2008 ◽  
Vol 61 (7) ◽  
pp. 521 ◽  
Author(s):  
Hong-Shuai Gao ◽  
Zhi-Guo Hu ◽  
Jian-Ji Wang ◽  
Zhao-Fa Qiu ◽  
Feng-Qiu Fan
Keyword(s):  
Ionic Liquids ◽  
Melting Point ◽  
Thermal Degradation ◽  
Physical Properties ◽  
Chiral Recognition ◽  
Specific Rotation ◽  
Acid Salt ◽  
Chiral Ionic Liquids ◽  
Potential Use ◽  
Mosher’S Acid

A novel class of chiral ionic liquids with chiral cations directly derived from natural l-proline has been synthesized and their physical properties such as melting point, thermal degradation, and specific rotation have been characterized. Further, their potential use in chiral recognition was demonstrated by studying interactions with racemic Mosher’s acid salt.

scholarly journals Influence of blend ratio on physical properties of oak tasar silk and acrylic blended spun yarn

2019 ◽  
Vol 11 (2) ◽  
pp. 388-393
Author(s):  
Pallavi Lakhchaura ◽  
Manisha Gahlot ◽  
Anita Rani
Keyword(s):  
Physical Properties ◽  
Fibre Content ◽  
Ring Spinning ◽  
Blend Ratio ◽  
Acrylic Fibre ◽  
Blended Yarn ◽  
Spun Yarn ◽  
Yarn Count ◽  
Blend Ratios ◽  
Silk Spinning

In this study an attempt was made to utilize the oak tasar silk spinning waste through blending it with acrylic fibre and prepared yarn in mechanised spinning system.  The oak tasar silk and acrylic blended yarn were prepared on ring spinning machine with five different blend ratios viz. 100:0, 60:40, 50:50, 40:60 and 0:100. The prepared yarns were of medium to fine yarn count. Yarn Physical properties of yarns, unevenness and imperfections were studied and statistically analysed. Results revealed that the 100% acrylic and 50:50 tasar acrylic blended yarns had better properties as compared to 60:40 and 40:60. The addition of acrylic fibre content improved the physical properties, unevenness and imperfection of the blended yarns.

The Photometric Properties of the Ap Stars

1976 ◽  
Vol 32 ◽  
pp. 365-377 ◽  
Author(s):  
B. Hauck
Keyword(s):  
Physical Properties ◽  
Ap Stars

The Ap stars are numerous - the photometric systems tool It would be very tedious to review in detail all that which is in the literature concerning the photometry of the Ap stars. In my opinion it is necessary to examine the problem of the photometric properties of the Ap stars by considering first of all the possibility of deriving some physical properties for the Ap stars, or of detecting new ones. My talk today is prepared in this spirit. The classification by means of photoelectric photometric systems is at the present time very well established for many systems, such as UBV, uvbyβ, Vilnius, Geneva and DDO systems. Details and methods of classification can be found in Golay (1974) or in the proceedings of the Albany Colloquium edited by Philip and Hayes (1975).

The Infection of Cells by Bullet-Shaped Viruses

1969 ◽  
Vol 27 ◽  
pp. 372-373
Author(s):  
Frederick A. Murphy ◽  
Alyne K. Harrison ◽  
Sylvia G. Whitfield
Keyword(s):  
Electron Microscopy ◽  
Physical Properties ◽  
Host Cell ◽  
Thin Section ◽  
Cultured Cells ◽  
Cell Infection ◽  
Thin Section Electron Microscopy ◽  
Section Electron ◽  
Section Electron Microscopy

The bullet-shaped viruses are currently classified together on the basis of similarities in virion morphology and physical properties. Biologically and ecologically the member viruses are extremely diverse. In searching for further bases for making comparisons of these agents, the nature of host cell infection, both in vivo and in cultured cells, has been explored by thin-section electron microscopy.

Transmission electron microscopy of composite materials

1988 ◽  
Vol 46 ◽  
pp. 1012-1015
Author(s):  
K.P.D. Lagerlof
Keyword(s):  
Composite Materials ◽  
Physical Properties ◽  
Structural Defects ◽  
Structural Composites ◽  
Multiphase Materials ◽  
Structural Reinforcement ◽  
Transmission Electron ◽  
Reinforced Fiber ◽  
Particulate Reinforced Composites ◽  
Definition Of

Although most materials contain more than one phase, and thus are multiphase materials, the definition of composite materials is commonly used to describe those materials containing more than one phase deliberately added to obtain certain desired physical properties. Composite materials are often classified according to their application, i.e. structural composites and electronic composites, but may also be classified according to the type of compounds making up the composite, i.e. metal/ceramic, ceramic/ceramie and metal/semiconductor composites. For structural composites it is also common to refer to the type of structural reinforcement; whisker-reinforced, fiber-reinforced, or particulate reinforced composites [1-4].For all types of composite materials, it is of fundamental importance to understand the relationship between the microstructure and the observed physical properties, and it is therefore vital to properly characterize the microstructure. The interfaces separating the different phases comprising the composite are of particular interest to understand. In structural composites the interface is often the weakest part, where fracture will nucleate, and in electronic composites structural defects at or near the interface will affect the critical electronic properties.

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