A Long Reach Bidirectional WDM-PON Upstream and Downstream Data rate 10Gbps by using Mode Locked Laser and RSOA

This paper presents Long Reach Wavelength Division Multiplexing Passive Optical Network (WDM-PON) system capable of delivering downstream 40 Gbit/s data and upstream 40 Gbit/s data on a single wavelength. The optical source for downstream data and upstream data is mode locked laser at central office and reflective semiconductor optical amplifier (RSOA) at each optical network unit. We use four RSOAs at each optical network unit for the 40-Gb/s upstream transmission. The operating wavelengths of these RSOAs are separated by the free-spectral range of the optical demultiplexer at the central office and remote node (RN) for demultiplexing the WDM channels. We extend the maximum reach of this WDM PON to be 50 km by using Erbium-doped fiber amplifiers at the RN. Bit error rate, were measured to demonstrate the proposed scheme. In this paper Long reach and large data service aspects of a WDM-PON is presented. The results show that the error-free transmission can be achieved for all WDM channels with sufficient power margins. DOI: 10.17762/ijritcc2321-8169.150313

Kinetics Study of Methyl Orange Adsorption from Aqueous Solutions using Fly Ash Granules as Low Cost Adsorbent

661-664Fly ash obtained from a thermal power station was granulated using a biopolymer and used as an adsorbent to remove methyl orange (MO) dye from solutions. Uptake of MO from solutions occurred in 30 min of contact and obeyed Langmuir isotherm model. Results point to waste flyash as a promising alternative for removal of azo-dyes such as methyl orange from industrial wastewaters

Telerehabilitation using Real Time Communication

There are many diseases affecting the population trends globally.Miniaturization of sensors in combined with medical information technology provides efficient solutions to reduce costs and deliver remote medical services through connected devices. Remote consultation via video‐conferencing has been well established, but the chronic or long‐term musculoskeletal conditions require pro‐active management and therapy thus raising the need to develop more advanced telerehabilitation systems. In this paper, we introduce KinectRTC that can be used for Kinect‐based telerehabilitationwith efficient real‐timetransmission of video, audio and skeletal data. The Web Real‐TimeCommunication (WebRTC) technology has benefitted to the proposed framework which is able to manage video and audio streams based on the state of the network and the available bandwidth to guarantee the real‐time performance of the communication

New approach towards imaging λ-DNA using scanning tunneling microscopy/spectroscopy (STM/STS)

A new methodology to anchor λ-DNA to silanized n-Si(111) surface using Langmuir Blodget trough was developed. The n-Si (111) was silanized by treating it with low molecular weight octyltrichlorosilane in toluene. Scanning tunneling microscopy (STM) image of λ-DNA on octyltrichlorosilane deposited Si substrate shows areas exhibiting arrayed structures of 700 nm length and 40 nm spacing. Scanning tunneling spectroscopy (STS) at different stages depict a broad distribution of defect states in the bandgap region of n-Si(111) which presumably facilitates tunneling through otherwise insulating DNA layer

Multimodal models of animal sex in scientific literature: breaking binaries leads to a better understanding of ecology and evolution

‘Sex’ is often used to describe a suite of phenotypic and genotypic traits of an organism related to reproduction. However, not all these traits are necessarily linked, and the rhetorical collapse of variation into a single term elides much of the complexity inherent in reproductive phenotypes. We conducted a meta-analysis of scientific literature to investigate how terminology related sexual phenotypes changes over time. We find that the conflation of gender and sex has increased, and there is a mammalian bias in this conflation. We highlight how a more inclusive and expansive framework for sex can clarify studies of sexual diversity

New approach towards imaging λ-DNA using scanning tunneling microscopy/spectroscopy (STM/STS)

Abstract. A new methodology to anchor λ-DNA to silanized n-Si(111) surface using Langmuir Blodget trough was developed. The n-Si (111) was silanized by treating it with low molecular weight octyltrichlorosilane in toluene. Scanning tunneling microscopy (STM) image of λ-DNA on octyltrichlorosilane deposited Si substrate shows areas exhibiting arrayed structures of 700 nm length and 40 nm spacing. Scanning tunneling spectroscopy (STS) at different stages depict a broad distribution of defect states in the bandgap region of nSi(111) which presumably facilitates tunneling through otherwise insulating DNA layer

Quality of public open spaces in Pune city for promoting physical activity

Inactivity is one of the ten leading global causes of death and disability. Despite the common knowledge that exercise or physical activity is helpful, many people are not regularly active. Considering the limited or very low success for individual based approaches in promoting active and healthy lifestyle, environmental interventions is the key to promote physical activity. Physical environment can either obstruct or facilitate physical activity. So, addressing environmental attributes of public open spaces like parks and play grounds associated with promoting physical activity in need of the hour. Hence the present study was undertaken with a purpose to study quality of public open spaces in Pune city for promoting physical activity.For this descriptive survey out of the 7 regions in which Pune city area is divided 2 regions namely, Aundh-Baner and Shivajinagar-Ghole Road were selected. All together there are 11 Public parks and playgrounds in Aundh-Baner region and 17 in Shivajinagar- Ghole road region which were considered as sample for the study