Microbial, Biochemical, Anatomical and Histochemical Analysis of Black Pepper and Sorghum Inoculated with Mycorrhiza

Microbial, biochemical and histochemical analysis of Black pepper (Piper nigrum L.) and sorghum (Sorghum bicolor L. Moench) inoculated with mycorrhiza from the organic soil, inorganic soil, natural soil, control and Glomus fasciculatum was studied. Microbial population and activity of different enzymes in soils of pepper and sorghum inoculated with mycorrhiza and control plants were studied. The anatomical studies showed that there were striking differences in plant leaf structures. Sizes of upper epidermis, lower epidermis, xylem cells and spongy layer increased due to inoculation with mycorrhiza from the organic soil, inorganic soil, natural soil, control and Glomus fasciculatum. Histochemical analysis of these crop plants were carried out to study the difference in the accumulation of the polysaccharides, proteins and nucleic acids in leaf tissues of control and mycorrhiza inoculated plants. There was increased accumulation of protein, polysaccharide and the nucleic acids in the leaf samples indicating the direct correlation between the Arbuscular Mycorrhizal  (AM) fungi and the crop response to inoculation of the AM fungi. The growth parameters studied were stem girth, rooting percentage and sprouting percentage. Mycorrhizal association with pepper and sorghum was also studied

EFFICIENT CHANNEL ALLOCATION BASED ON PRIORITY OF THE VIDEO IN VOD SYSTEMS

Today's technology offers easy access to multimedia services through high-speed communication networks. A Video-on-Demand (VoD) service allows customers to connect to an on-line video server and asynchronously watch videos. A Video-on-Demand system is typically implemented by Client-Server architecture. This paper presents a scheme of channel allocation based on priority of the requested video, to increase efficient channel utilization and lower the download time. This allocation scheme shows better performance when compared to conventional way of allocating channels

Preemption-based buffer allocation in Video-on-Demand system

Present research focus is to explore several alternatives to improve the performance of a Video-on-Demand (VoD) system. The challenge in VoD application is to stream uninterrupted, synchronous and good quality multimedia data from a video server to a user over a high-speed network. Large number of concurrent users accessing a VoD system present a generic problem because of the load imposed on the video server. In this context, buffer management plays a critical role in retrieval and transfer of data. It also ensures that all the requests are guaranteed a sufficient amount of the buffer in order to improve the efficiency of the video server by reducing the initial latency. We have performed extensive analysis of the buffer requirements and conducted several runs of simulation experiment. The results show that Preemption-Based Buffer Allocation (PBBA) scheme reduces initial latency (over the number of user requests in service from one to maximum capacity) to twice that of the conventional scheme and the reneging probability is 5 to 6 with the mean reneging time of 30 seconds. The results demonstrate a significant improvement in the performance of the Video-on-Demand system. © 2006 IEEE

Efficient channel allocation based on priority of the video in VoD systems

Today's technology offers easy access to multimedia services through high-speed communication networks. A Video-on-Demand (VoD) service allows customers to connect to an on-line video server and asynchronously watch videos. A Video-on-Demand system is typically implemented by Client-Server architecture. This paper presents a scheme of channel allocation based on priority of the requested video, to increase efficient channel utilization and lower the download time. This allocation scheme shows better performance when compared to conventional way of allocating channels

Relative vulnerability assessment of Indian marine fishes to climate change using impact and adaptation attributes

Not AvailableFish is a poikilothermic animal that cannot regulate body temperature through physiological process; this is regulated instead by environmental process. Fish physiology, like growth and reproduction is directly influenced by changes in temperature. With rising environmental temperature, the physiological activities of fishes also increase, which in turn increases the oxygen demand. But the solubility of oxygen in water is inversely related to temperature and salinity (Weiss, 1970). Thus, dissolved oxygen availability in water will decrease, resulting in the reduction of growth and reproduction success of fishes and prevent them from dealing as effectively with other environmental changes. This is particularly true in the case of fishes living in closed water bodies. In an open ocean system, several factors play a synergistic role in impacting the physiology of the organisms.Not Availabl