Post curing of Hansa-3 (VT- HNW) Components

This report contains the detads of post curing of Hansa-3 (VT- HNW) all composite airframe components provided byC-CADD, carried out using an in-house designed and fabricated large hot air oven (17mts x 2.0mts x 2.0mts). It details an optimum post cure cycle implemented, the temperature accuracy's, the various innovative approaches adapted to ensure the safety of the full scale components undergoing post cure in the oven. All the Hansa-3 (VT-HNW) airframe composite components post cured as per the standard optimum post cure cycle and the oven temperature monitored throughout around f 3degree C to ensure uniform post curing of components

Small Farm Goat Production in Semi-Arid Region of Uttar Pradesh

Majority of selected goat farmers were landless and marginal (69%) with an annual average income of Rs.I9200.00. However, average income of small and medium goat farmers were about Rs.25500.00.Ownership pattern of goats revealed that about 78% goats were owned by the landless and marginal farmers. Majority of the farmers had Barbari/Barbari type goats (54%) followed by non-descript (43%) and Sirohi type goats (3%). Furthermore, 69 per cent goat houses were of Kaccha type and 49 per cent of selected respondent availed private veterinary services for their goats however, 40 percent of the goat farmers used home remedies. Merely, 11 per cent of the respondents visited government veterinary hospitals Though, poor socio-economic status cannot be ignore for the goat improvement in study village, some policy support is imperative to encourage goat farmers for their overall development

Farm-economics of genetically improved carp strains in major Asian countries and carp seed price policy model

The study has conducted the micro level analysis of hatchery operators, fishseed-rearing farmers and carp farmers with respect to their socio-economic characteristics, infrastructural development, husbandry practices and economics returns, based on the survey and on-farm trial data collected by the research partners in six Asian countries, viz. Bangladesh, China, India, Indonesia, Thailand and Vietnam. The genetically-improved carp strain is economically viable and socially acceptable. The attractive profits to hatchery operators and nursery and carp farmers have created conducive environment for the dissemination of improved carp strain. Price policy models for improved strains have been developed. The premium price for fingerlings and broodstock with improved strain has been assessed. The high price of genetically-improved nuclear seed and broodstock would build self-supportive research and extension systems in the country. A business plan for Jayanti rohu has been worked out, as an example for replacement of rohu by Jayanti rohu.Livestock Production/Industries,

Waste Load Scheduling an Alternative Approach to Stream Water Quality Management

Source: ICHE Conference Archive - https://mdi-de.baw.de/icheArchiv

OPTIMIZATION OF PLY STACKING SEQUENCE OF COMPOSITE DRIVE SHAFT USING PARTICLE SWARM ALGORITHM

In this paper an attempt has been made to optimize ply stacking sequence of single piece E-Glass/Epoxy and Boron /Epoxy composite drive shafts using Particle swarm algorithm (PSA). PSA is a population based evolutionary stochastic optimization technique which is a resent heuristic search method, where mechanics are inspired by swarming or collaborative behavior of biological population. PSA programme is developed to optimize the ply stacking sequence with an objective of weight minimization by considering design constraints as torque transmission capacity, fundamental natural frequency, lateral vibration and torsional buckling strength having number of laminates, ply thickness and stacking sequence as design variables. The weight savings of the E-Glass/epoxy and Boron /Epoxy shaft from PAS were 51% and 85 % of the steel shaft respectively. The optimum results of PSA obtained are compared with results of genetic algorithm (GA) results and found that PSA yields better results than GA

FORMULATION AND EVALUATION OF FAST DISSOLVING TABLETS OF RANITIDINE HYDROCHLORIDE BY HOLE TECHNOLOGY

Attempts were made to prepare ranitidine fast dissolving tablets by Novel Hole technology. When these fast dissolving tablets contact with gastro intestinal fluids, the fluid will enters the hole present in the tablet and immediate breaking of the tablet is going to takes place. This fast disintegration of tablets is also influenced by the formation of new absolute area. The prepared FDTs were subjected to various pre and post formulation studies. Its disintegration and dissolution rates were compared with the control formulation (without hole).In-vitro drug release of FDTs (DH6) showed almost 100.92percent of the drug was released at 6th minute, whereas the control formulation D12, shows the 99percent drug release at 20th minute. Overall, this technique is novel and most useful for formulation into fast dissolving tablets.Key words: Novel Fast Dissolving Tablets, Ranitidine, Hole technolog

Mitochondrial genetic homogeneity of South American leafminer, Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) in Tamil Nadu, India

The South American leafminer, Tuta absoluta is an exotic devastative pest on solanaceous vegetables, including tomatoes, which leads to a cent per cent economic loss in India. The molecular markers assist in assessing gene flow, migratory frequencies, and genetic variety, as well as helping to evaluate the genetic makeup and diversification of an exotic species population to indigenous ones. With this, the present study aimed to investigate the genetic divergence of T. absoluta  in different districts of Tamil Nadu, India. The study depicted the examination of genetic divergence of T. absoluta by aiding amplified region of mitochondrial DNA encoding cytochrome oxidase I (COI) from the T. absoluta samples gathered from Coimbatore, Dharmapuri and Dindigul districts of Tamil Nadu. The  findings showed that the phylogenetic tree constructed from all sequences of T. absoluta acquired from the NCBI (National Center for Biotechnology Information)  and BOLD (The Barcode of Life Data System) databases exhibited 99 percent identity and aggregated together into a single clade. . 5Hence, the present study revealed the great genetic uniformity in T. absoluta populations in India and corroborates that most of the globe rely on the partial COI gene, evidenced by minimal nucleotide diversity

Dictionary Attack on IMU-based Gait Authentication

We present a novel adversarial model for authentication systems that use gait patterns recorded by the inertial measurement unit (IMU) built into smartphones. The attack idea is inspired by and named after the concept of a dictionary attack on knowledge (PIN or password) based authentication systems. In particular, this work investigates whether it is possible to build a dictionary of IMUGait patterns and use it to launch an attack or find an imitator who can actively reproduce IMUGait patterns that match the target's IMUGait pattern. Nine physically and demographically diverse individuals walked at various levels of four predefined controllable and adaptable gait factors (speed, step length, step width, and thigh-lift), producing 178 unique IMUGait patterns. Each pattern attacked a wide variety of user authentication models. The deeper analysis of error rates (before and after the attack) challenges the belief that authentication systems based on IMUGait patterns are the most difficult to spoof; further research is needed on adversarial models and associated countermeasures.Comment: 12 pages, 9 figures, accepted at AISec23 colocated with ACM CCS, November 30, 2023, Copenhagen, Denmar

Investigation of physicochemical and tribological properties of TiO2 nano-lubricant oil of different concentrations

Nano-lubricants provide enhanced tribological properties in several applications like machines and engines. The presence of nanoparticles in the lubricating oil effects its wear, friction, thermal, chemical and physical properties in many ways. This article reports effect of TiO2 nanoparticles suspended in servo system lubricating oil prepared by sonication process without adding any surfactant. Four different volume concentrations (0.2%, 0.4%, 0.6% and 0.8%) of TiO2 nanoparticles in the base lubricating oil are used for analysis. Calorific value, flash point, viscosity are the physicochemical properties of the TiO2 nano-lubricant investigated at different Volume Concentrations (VC). Wear scar diameter and coefficient of friction are the tribological properties analyzed for the prepared nano-lubricant at different VCs. Calorific value and flash point of the nano-lubricant was found to be decreasing with increasing VCs compared to base lubricant oil. Viscosity, on the other hand was almost same as the base lubricant oil for the proposed VCs. Wear scar diameter and friction coefficient was found to increase with increase in VC of TiO2 nanoparticles in the lubricant oil. It is concluded that, to obtain better results agglomeration of nanoparticles has to be avoided which can be achieved with the use of surfactant