Dependency on regional libraries for grey literature: Perceptions of researchers in engineering sciences and technology

While highlighting the strength of Grey Literature collection in the engineering institutions recognized for research in the state of Karnataka, the study focuses on the extent of dependency of researchers and librarians on the regional libraries for grey resources. In the present study, response have been sought as to the frequency of access, discipline-wise use of grey collection, gender-wise awareness of Grey Literature available in the holdings of the regional libraries. Further, the research study focuses on the perceptions of the faculty and research scholars as to the cooperation and assistance rendered by the library staff in getting Grey Literature. The study also covers the feed back of the researchers on notifying new arrivals of Grey Literature on the institution website, and the need for conducting orientation programmes for better access and use of Grey Literature available in the holdings of the regional libraries. The summary of findings depicts that an overwhelming majority of the researches opine that the libraries either individually or jointly have to notify new arrivals on the website and further there is felt-need for the conduct of orientation progammes

Dependency on Regional Libraries for Grey Literature: Perceptions of Researchers in Engineering Sciences and Technology

While highlighting the strength of Grey Literature collection in the engineering institutions recognized for research in the state of Karnataka, the study focuses on the extent of dependency of researchers and librarians on the regional libraries for grey resources. In the present study, response have been sought as to the frequency of access, discipline-wise use of grey collection, gender-wise awareness of Grey Literature available in the holdings of the regional libraries. Further, the research study focuses on the perceptions of the faculty and research scholars as to the cooperation and assistance rendered by the library staff in getting Grey Literature. The study also covers the feed back of the researchers on notifying new arrivals of Grey Literature on the institution website, and the need for conducting orientation programmes for better access and use of Grey Literature available in the holdings of the regional libraries. The summary of findings depicts that an overwhelming majority of the researches opine that the libraries either individually or jointly have to notify new arrivals on the website and further there is felt-need for the conduct of orientation progammes.Includes: Conference preprint, Abstract and Biographical notesXAInternationa

Structural and optical properties of multilayered un-doped and cobalt doped TiO2 thin films

The present investigation reports the effect of multilayers (1, 3 and 7 layers) and cobalt (Co) doping on structural and optical properties like transmittance, refractive index, extinction coefficient, etc. of TiO2 thin films prepared by a sol-gel spin coating technique. X-ray diffraction (XRD) and Raman spectroscopy were used to investigate the phase and structure of the prepared films which confirm the formation of single phase anatase TiO2 structure of the films. Morphology study by SEM indicate development of cracks with increase in number of layers at large scale but in the small (nano) scale the films are compact and smooth. Thickness study by cross sectional SEM shows increase in thickness with increase in number of layers. Energy Dispersive X-ray spectra were used to study the presence of cobalt in doped films. UV-Visible spectroscopy was used to study the transmittance of the films and spectroscopic ellipsometry was used to study the optical constants like refractive index and extinction coefficient which indicate the highest refractive index and the lowest extinction coefficient for single layered cobalt doped TiO2 thin films while 7 layered films show the lowest refractive index and the highest transmittance. Spectroscopic ellipsometry studies indicate increase in packing density of coated layers in Co-doped TiO2 films due to which refractive index as well as transmittance of these films are significantly more in comparison to undoped films. Photoluminescence spectra show increase in oxygen vacancies in Co-doped multilayered TiO2 films indicating increase in blue emission. Thus, the enhanced values of refractive index as well as transmittance and blue emission in Co-doped TiO2 multilayers films are promising for optical device applications