332 research outputs found
An excerpt from Urmila Pawar\u27s Autobiography
Get PDFThe term "Dalit literature" is used to describe works written by authors from the Dalit ethnic minority. The hardships and triumphs of the Dalit people were mirrored in this body of writing. It also revealed their uphill battle in life to the outside world. They are victims of centuries of discrimination and oppression at the hands of those in power in their own nation. Social transformation in this society owes a great deal to the efforts of notable individuals like B.R. Ambedkar. Dalit writings have emphasized the rights and agency of the Dalit community. Many authors of Dalit descent have written on the difficulties inherent in their language and culture. They questioned the privilege of the higher caste and advocated for the adoption of vernacular speech. Several Dalit authors have achieved widespread acclaim for their works. There are several famous authors from India, like Bama (K.R. Meera), Om Prakash Valmiki, Chetan Divate, Urmila Pawar, and Daya Pawar. Urmila Pawar is a well-known Marathi author and activist. She has achieved widespread renown as a writer due to the autobiographical nature of her books. Her works are impacted by both her time as a student and her time as an educator.
 
Ultrasonic spectroscopic analysis of impact damage in composites by using laser vibrometry
No full textContemporary composite materials are continuously being modified and improved in accordance with growing quality requirements of aerospace systems. New manufacturing technologies stimulate development of appropriate (novel) nondestructive testing (NDT) methods and respective hardware for detecting and characterizing hidden defects. One of the recent improvements in this area is related to combining acoustic stimulation of test objects and scanning laser vibrometry. This paper describes an ultrasonic spectroscopic approach to laser vibrometry applied to hybrid composite materials subjected to impact damage. The meander-shaped signal for resonance stimulation was applied to enhance the detection of multi-component defects. It has been shown that wide-band frequency stimulation provides some advantages in regard to mono-frequency excitation because it activates more zones of multi-component defects thus allowing more accurate estimation of defect size
The effect of mechanical strain on properties of lubricated tablets compacted at different pressures
No full textA full factorial design of experiments was used to study the effect of blend shear strain on the compaction process, relative density and strength of pharmaceutical tablets. The powder blends were subjected to different shear strain levels (integral of shear rate with respect to time) using an ad hoc Couette shear cell. Tablets were compressed at different compaction forces using an instrumented compactor simulator, and compaction curves showing the force-displacement profiles during compaction were obtained. Although the die-fill blend porosity (initial porosity) and the minimum in-die tablet porosity (at maximum compaction) decreased significantly with shear strain, the final tablet porosity was surprisingly independent of shear strain. The increase in the in-die maximum compaction with shear strain was, in fact, compensated during post-compaction relaxation of the tables, which also increased significantly with shear strain. Therefore, tablet porosity alone was not sufficient to predict tablet tensile strength. A decrease in the ‘work of compaction’ as a function of shear strain, and an increase in the recovered elastic work was observed, which suggested weaker particle-particle bonding as the shear strain in- creased. For each shear strain level, the Ryskewitch Duckworth equation was a good fit to the tensile strength as a function of tablet porosity, and the obtained asymptotic tensile strength at zero porosity exhibited a 60% reduction as a function of shear strain. This was consistent with a reduced bonding efficiency as the shear strain increased.Peer reviewed
Our Story Collages
No full textOur Story digital collages of the Underwater Realm presented in Giannoulatou, I. D., Januchowski-Hartley, S. R., Sahni, A., Pawar, S. K., White, J. C., Lockheart, J., Baranduin, N., Herbst, D., Whittaker, B., Thackeray, S. J., Shooter, R., Darley, J. and Thomas, M. (in review). Collaging to find new connections and meaning about underwater places. cultural geographies. *Corresponding author: [email protected] </p
Identification of Impact Damage in Composite Laminates through Integrated Pulsed Phase Thermography and Embedded Thermal Sensors.
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Our Story Audio-Visual Media
No full textOur Story audio-visual media presented in Giannoulatou, I. D., Januchowski-Hartley, S. R., Sahni, A., Pawar, S. K., White, J. C., Lockheart, J., Baranduin, N., Herbst, D., Whittaker, B., Thackeray, S. J., Shooter, R., Darley, J. and Thomas, M. (in review). Collaging to find river connections and stimulate new meanings. cultural geographies.
The original video file was changed with an updated version on 21 September 2022 to include subtitles (English).
*Corresponding author: [email protected] </p
Synthesis and biological studies of novel pyranochromene derivatives.
Get PDFDoctor of Philosophy in Chemistry. University of KwaZulu-Natal, Durban 2015.Abstract available in PDF file
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