Performance Evaluation of Optical CDMA Transmission System

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Essential Hypertension - An Ayurvedic Review

Essential hypertension is high blood pressure for which there is no clearly defined aetiology. According to oxford textbook of medicine 5th edition, in 2000 it was estimated that 25% of the world adult population were hypertensive and predicted that this would rise to 29% by 2025. By the age of 60, more than one half of adults in most regions of the world will be hypertensive. There is continuous relationship between blood pressure and cardiovascular risk from blood pressure values as low as 115/75mm of Hg. In Ayurveda there is no specific terminology mentioned or explanation has been found regarding essential hypertension. But most of the Ayurveda experts believe that the main pathogenesis occurs in blood vessels and involves all the Doshas, including Manavahasrotas involvement. Presently the disease is treated empirically in Ayurveda clinics, so there is the need to understand it rationally in terms of Ayurveda so it can be treated accordingly with better results and prognosis. The Nidana can be explained under three factors including bijadoshas, environmental, and Manasika Doshas. It can be described as the disease with Avyakta Purvarupa and Rupa as Shirashoola, Nidranasha, Bhrama, Klama etc. The disease can be concluded as Vatapradhana Tridoshaja Vyadhi with involvement of Mahamarmas

A clinical study on management of Gridhrasi

Gridhrasi is a painful condition in which the person can’t sit and walk properly that hampers his normal activity. Almost all signs and symptoms of Gridhrasi resemble with the condition of sciatica described by the modern texts. Its detail symptomatology has been described in Ayurvedic classics since 5000 years, while this condition was known to modern medical science just two centuries ago. According to Ayurveda principles treatment for Vatavyadhi should be Shodhana followed by Shamana therapy. According to present era it should be less time consuming and more effective. Keeping this in mind, A clinical study in the management of Gridhrasi with Shodhana and Shamana therapy was undertaken in VYDSAMC & Hospital, Khurja,Bulandshahr, with the aim to give promising results to the patient of Gridhrasi. Shodhana therapy as Mridu Virechana followed by Shamana with Yograja Guggulu and Maharasnadi Kwatha was given to 29 patients with classical symptoms of Gridhrasi, it showed significant results. The following study can be taken for further research in this field

Skeletonization-Based Automated Tracing and Reconstruction of Neurovascular Networks in Knife-Edge Scanning Microscope Mouse Brain India Ink Dataset

The vascular architecture of the brain is very complex and reconstruction of this architecture can aid in understanding the functions of vessels in different regions of the brain. Advances in microscopy have enabled high-throughput imaging of massive volumes of biological microstructure at a very high resolution. The Knife Edge Scanning Microscope (KESM), developed by the Brain Network Laboratory at Texas A & M University, is one such instrument that enables imaging of whole small animal brains at sub-micrometer resolution. The KESM has been successfully used to acquire vasculature dataset from a mouse brain stained by India ink. However, manual tracing and reconstruction of vessels is not feasible due to the huge volume of the dataset. Therefore, developing efficient and robust automatic tracing methods is essential for analysis of the network. This thesis presents an efficient skeletonization based tracing algorithm to reconstruct the vascular structure in the KESM India ink data set. The skeleton is generated from the original volume by repetitively removing voxels from the object’s boundary such that the connectivity and topology in the original volume is preserved. The skeleton is then dilated to reconstruct the volume. The accuracy of this method is determined by comparing the reconstructed volume with the original volume. This method is expected to trace the entire vascular network of the brain quickly and with high accuracy without human assistance

Process of Ageing - An Ayurvedic Perspective

Census shows that one out of every two elderly suffers from at least alone chronic disease that requires lifelong medication. Nearly 50% report arthritis, 40% hypertention, 30% hearing impairement, 40% defective vision, 10% diabetes, 89 out of every 1000 are mentally ill. Ayurveda has considered Jara as one of the branch among eight branches of Ayurveda but detailed description as a disease has not been mentioned anywhere. Process of ageing can be described by Sahaja Theory and Vatic Theory and how various pathological factors such as impaired Dhatu Vyuha Karatha, Rasa Shoshana, Dhatu Asamata, Agni Asamata, Mano Vyaharsha and Ayu Upaghata leads to Ojakshaya and ultimately Jara

Investigation of bandwidth optimization hybrid scheduling algorithm for hybrid WDM/TDM passive optical system

Hybrid WDM/TDM optical access network has evolved as a cost-effective solution to the higher requirements of bandwidth in the access network. Bandwidth allocation and scheduling mechanism have become critical issues in the optical access networks. In this paper, a novel upstream bandwidth optimization hybrid scheduling algorithm has been proposed in which optical network units can employ tunable wavelength for upstream transmission with a single optical source. Resources allocations have been done utilizing multi point control protocol and for wavelength scheduling the shortest length of channels have been computed. Investigation of the proposed algorithm for providing improved channel utilization has been performed and a comparative analysis has been done for validation

Estimation of Drag Coefficient from Radar-tracked Flight Data of a Cargo Shell

Two schemes to extract drag coefficient (C,) by processing the radar-tracked trajectories of artillery shell in motion, have been proposed. Flight trajectories of artillery shell are considered. The proposed schemes are applied on the radar-tracked trajectory data of artillery shell to estimate thc C,,. The C,, is strong function of Mach number. To capturc the functional rclationship between the C, and the Mach number, the C, of the ammunition was assumed to be a polynomial function of Mach number (separately for subsonic and supersonic). The coefficients of the assumed polynomial were estimated by minimising the error between measured and estimated trajectories. In the second scheme, whole trajectory was split into diffcrent sets containing 50 or 100 data points. Each data set was processed using the proposed schemes to estimate numerical values of C, corresponding to the average Mach number of the chosen data set. The estimated values of the C, (at different Mach numbers) have been presented along with its standard deviations. The difticulties encountered in processing the real trajectory data using the proposed schemes are also highlighted. It is observed that thc proposed schclnes could advantageously be applied to quickly estimate the numerical values of the C, at corresponding Mach numbers, by processing thc trajectory data of an artillcry shell in motion

Trajectory Correction Flight Control System using Pulsejeton an Artillery Rocket

A trajectory correction flight control system is small and durable, and consists of a lateralpulsejet ring mounted on the rocket body. The pulsejet ring consists of a finite number of individualpulsejets. Each pulsejet on the ring imparts a single, short-duration, large force to the rocket inthe plane normal to the rocket axis of symmetry. Lateral pulsejets are used by flight controlsystem to assist the rocket to follow a pre-specified (command) trajectory. The trajectory-trackingflight control system computes the position error by comparing the measured position of therocket with the pre-specified trajectory. In actual application, the position of the rocket couldbe measured using in-house inertial measurement unit (IMU) or by ground-based-tracking radarsystem located at the firing site. A study has been undertaken to explore the feasibility of reducingthe impact point dispersion of a routinely-used artillery rocket using lateral pulsejets coupledto a trajectory correction flight control system. Simulation studies have been conducted to arriveat tuning parameters, namely the tracking error window size, the required elapsed time betweenthe pulsejet firings and the angle of tolerance between the tracking error and the individualpulsejet force. Further, the robustness of the methodology wrt measurement noise has also beenevaluated.Defence Science Journal, 2008, 58(1), pp.15-33, DOI:http://dx.doi.org/10.14429/dsj.58.162

Assessment of Oral Hygiene Habits among the Dental Students of Bhopal, Madhya Pradesh: A Questionnaire Survey

The aim of conducting this study was to evaluate the oral hygiene attitudes among the budding dentists, and whether progressive dental education and their understanding of preventive dental procedures will improve their commitment toward enhancement of their own oral health attitudes. For this purpose, a cross sectional study was designed for 400 dental students of Bhopal divided into group A (first year and second year) and group B (third year and final year) using a custom formulated objective type of questionnaire to explore their dental health attitudes and behavior based on gender and level of dental education. The complex interplay of factors that shape attitudes and health behaviors, two major influences appear central: culturally determined attitudes/beliefs and behaviors (social norms), and learned experiences. Gender seems to play an important role as data collected show females belonging to both the groups to be having better self-reported health attitudes in majority of investigated areas. The findings of the present study highlighted the relatively poor oral health behavior of Indian dental students, which should be improved in order to serve as a positive model for their patients, family and friends

Bidirectional Transmission in TWDM Optical Access Network with Tunable Wavelength ONU

909-913In this paper, a novel configuration for bidirectional hybrid time and wavelength division multiplexing (TWDM) optical access network is presented that fulfills the growing broadband requirements of next generation 5G customers. A purely passive system module is suggested for 512 subscribers that can communicate at a line rate of 240 Gbps in downlink and 160 Gbps in uplink over the common fiber cable. Shared network infrastructure helps in amortization of the installation and recurring operational expenses. Subscriber optical network unit (ONU) consists of tunable wavelength transmitter that can adjust uplink channel on the instructions of the medium access control layer (MAC). Improved Bandwidth Optimization Hybrid Scheduling Algorithm (BOHSA1) is implemented in the network to reduce the wastage of time slots per channel that helps in improving the channel utilization. The demonstrated architecture is extensively investigated to know the impact of diverse encoding scheme; photo-detector and electric filter have on the network performance