Wyniki wyszukiwania:

Nano crystalline orthoferrite powders were synthesized at low temperatures by solution combustion synthesis using glycine as a fuel at different fuel to oxidizer ratios. During this process of combustion synthesis, more and less flames were observed at more fuel to oxidizer ratios. From X-ray diffraction, for instance the formation of a single phase of LaFeO3 with the perovskite structure was observed at lower calcination temperatures of 300 C. The lanthanum ferrite crystalline size is formed with orthorhombic structural and space group of the tolerance factor was observed. Excellent thermal...

ZnO based semiconductors as transparent electrodes have given wide range of applications in optoelectronic devices due to their wide band gap replacing the conventional GaN semiconductors. This book is the compilation of the work of Venkaiah Malapati which deals with the synthesis and characterization of an interesting room temperature undoped and 3d transition metal doped ZnO thin films by rf magnetron sputtering. this work addresses the following three major questions... (1) what is the effect of working gas pressure on the properties of undoped and Mn, Fe and Mn-Fe co-doped ZnO thin films....

The cultivated fields of North Coastal AP region are infested with a large number of weeds that result in heavy crop yield losses.Rice is the most dominant crop of this area.The rice variety RGL-2537 having crop duration of 150-165days, the groundnut crop variety JL-24 having cropduration of 105-110 days and sugarcane crop variety Viswamitra(87A 298)A total of 532 plant species belonging to 308 genera and 80 families were identified as crop land weeds.Of these 382 were dicots,149 monocots and one pteridophyte.Out of 532 species 396 were herbs,36 undershrubs,51 shrubs and 49 falls under...

Ethnomedicine is an area of research that deals with medicines derived from plants, animals and minerals. Its knowledge endowed with the aborigines is the resultant of millennia of experience, transmitted from generation to generation by oral tradition. Since the beginning of civilization, people have used plants as medicine and out of thousand of plants used by the tribals to cure ailments hundreds only found their way in all the systems of medicine in vogue today. The investigation is an attempt to explore the ethnomedicinal system of the aboriginals of Vizianagaram district of Andhra...

The study resulted in acquiring ethnobotanical knowledge about 408 plant species belongs to 319 genera and 108 families, potentially utilized by the tribal people. Out of 408 plant species, the majority belongs to herbs with 151 species, trees constitute 119 species followed by 74 climbers, 59 shrubs, 3 parasites and 2 epiphytes. Of 408 species, the dominated are angiosperms with 399 species of 310 genera, which belong to 100 families followed by Pteridophytes with 8 species of 8 genera, 7 families and finally with 1 species of gymnosperms belong to 1 genus and family. In 399 angiosperms,...