A Colour Code Algorithm For Signature Recognition

The paper "A Colour Code Algorithm for Signature Recognition" accounts an image processing application where any user can verify signature instantly. The system deals with a Colour code algorithm, which is used to recognize the signature. The paper deals with the recognition of the signature, as human operator generally make the work of signature recognition. Hence the algorithm simulates human behavior, to achieve perfection and skill through AI. The logic that decides the extent of validity of the signature must implement Artificial Intelligence Pattern recognition is the science that concerns the description or classification of measurements, usually based on underlying model. Since most pattern recognition tasks are first done by humans and automated later, the most fruitful source of features has been to asked the people who classify the objects how they tell them a part . Signatures are a behavioural biometric that change over a period of time and are influenced by physical and emotional conditions of a subject. In addition to the general shape of the signed name. The algorithm is tested on various operating systems & we find that it works very well & satisfactory. While implementing the recognition process, we have used quite simpler way. At this stage we are getting accuracy up to about 80% to 90%

Two Temperature Dual-phase-lag Fractional Thermal Investigation of Heat Flow Inside a Uniform Rod

A non-classical, coupled, fractionally ordered, dual-phase-lag (DPL) heat conduction model has been presented in the framework of the two-temperature theory in the bounded Cartesian domain. Due to the application of two-temperature theory, the governing heat conduction equation is well-posed and satisfying the required stability criterion prescribed for a DPL model. The mathematical formulation has been applied to a uniform rod of finite length with traction free ends considered in a perfectly thermoelastic homogeneous isotropic medium. The initial end of the rod has been exposed to the convective heat flux and energy dissipated by convection into the surrounding medium through the last end. The State-space approach has been employed to solve the corresponding boundary value problem to obtain the conductive and thermomechanical temperature along with thermal displacement and stresses in the Laplace domain. The role of the time-fractional order and delay time in the heat flux and temperature gradient has been investigated through numerical results representing graphically along the length of the rod. The classical, fractional and generalized thermoelasticity theory have been recovered and the finite speed of thermal wave has been attained

Simulation Models for Spark Ignition Engine: A Comparative Performance Study

AbstractA single-zone zero-dimensional model for any hydrocarbon fuel based on Wiebe heat release function has been implemented in Simulink to test the performance of spark ignition engine. Annand's model for convective heat losses is taken for modeling of engine cycle. The Simulink results are validated with experimental results from literature. The peak pressure during combustion drops with decrease in intake pressure which is similar to the experimental trend. With increase in speed from 1000rpm to 4000rpm, the brake thermal efficiency drops from 25% to 17% while the indicated efficiency is seen to be almost constant (32%). Two dimensional Computational Fluid Dynamic model using FLUENT of experimental test engine is prepared for axi- symmetric flow in the combustion chamber. It is a setup for closed cycle simulation that can predict pressure, mass burn fraction. CFD Simulation is carried out on an experimental engine set up at rated rpm of engine (1.8 HP @3600rpm). The CFD results with the validated Simulink model for this engine configuration shows that at low speeds (1000rpm), the maximum cylinder pressure prediction is about 8% higher for CFD analysis while this deviation is seen to be about 3% at higher speed (3600rpm). The Simulink model is subsequently used to test the predications of brake power and subsequently compared with the experimental results and CFD studies. Both the predictions are found to be in good agreement with the experimental results

Report of Platythomisus octomaculatus (C. L. Koch, 1845) and Platythomisus sudeepi Biswas, 1977 from India (Araneae, Thomisidae)

The genus Platythomisus Doleschall, 1859 presently comprises 13 valid species, nine known from Africa and four from Asia. All Platythomisus species are known from females only, except P. jucundus Thorell, 1894 and P. sudeepi Biswas, 1977 from both sexes and P. quadrimaculatus from juvenile. Only, P. sudeepi was reported from India. Platythomisus octomaculatus (C. L. Koch, 1845) is recorded after 120 years of its last report; newly recorded from Assam, India which extends its distribution from the previously known localities, Java and Sumatra. Platythomisus sudeepi is newly recorded from the Maharashtra State. The variation in the number of abdominal spots on juvenile, sub-adult and adult of P. octomaculatus observed during rearing is reported. Although, the species name 'octomaculatus' suggests eight spots, we observed that the anterior pair of abdominal spots is fused in adults

Gasification of High and Low Density Crop Residues

Crop residue constitutes a large fraction of biomass particularly in agricultural based economies like India. The most abundantly generated crop residues are paddy husk, paddy straw, coconut shell, cotton stalk and sugar cane trash. It is estimated that the potential of power generation using crop residue is close to 14 GWe in a country like India. Even though the potential is large, the main drawback with crop residue is that it is sparsely distributed and being of low density causes collection and transportation problem. This drawback could be converted into an advantage by adopting distributed power generation technologies. The distributed power generation would fare well in the power range of few hundred kilowatts and the most appropriate technology would be the biomass gasification technology. Among the biomass gasification technologies, the downdraft technology is ideally suited for power generation. The downdraft technology is proven with solid or woody biomass, whereas there are limitations in terms of acceptance of all types of crop residues. In this paper, performance study of two vastly differing crop residues, namely coconut shell and cotton stalk has been discussed; both the feedstocks have been tested in "post-harvested" condition with minimum amount of pre-processing. The performance with cotton stalk was found to be comparable at part load; however at higher load the gas composition deteriorated due to poor material movement within the reactor. This had implication in terms of maximum power generated. There was loss of power to an extent of 12%. The operational issues with post-harvested cotton stalk has been brought out which are based on detailed measurements

AYURVEDIC UNDERSTANDING OF BIOMECHANICAL DYSFUNCTION OF ANKLE JOINT WITH SPECIAL REFERENCE TO GULPHA MARMA ABHIGHATHA

Marma sthana is the vital and most vulnerable point of the body. The prana or the life resides in it. Among the detailed and broad classification of Marma by Susruthacharya in his Sareerasthana, the Gulpha Marma is one among 20 Sandhi Marma (vital point related to joints) and one of the 8 Rujakara Marma according to its traumatic effect of pain. The Gulpha viz. ankle joint is located at the junction of Paada (foot) and Jankha (leg), the trauma in this region will leads to pain, restriction of movement, and limping. The ankle (talo-crural) joint is a uni-axial synovial joint, with primary movements of dorsi and plantar flexions. Ankle joint is one of the most frequently injured areas of the body since being the connecting link between stable leg bone and the mobile foot and subjected to great varieties of forces in walking, running, standing etc. If there is any trauma or injury at Gulpha Marma region that directly affect the (Gulpha Sandhi) ankle joint. The ligaments, tendons and bones have an important role in maintaining the stability of ankle joint and some clinical and pathological aspects of these are reviewed. Various traumas on ankle joint or Gulpha Marma leads to the biomechanical dysfunction of the joint.

In-vitro screening of cucurbitaceous plants for antidiabetic potential

209-225Natural products traditionally have played an important role in drug discovery and formed the basis of most early medicines. Medicinal plants and drugs derived from them have been explored extensively for their antidiabetic potential. Extensive literature survey revealed that the family cucurbitaceae of higher plants has contributed a lot in traditional system of medicines for developing antidiabetic formulations. The most discussed Momordica charantia and Cucumis sativus are some examples. However, many cucurbitaceous taxa are yet to be explored. The objectives of the present study are to gather data from literature on the antidiabetic potential of cucurbitaceous plants with their traditional usage and in-vitro screening of different extracts and fractions of collected cucurbitaceous plants for their antidiabetic activity in the glucose utilization assay (GUA) on L6 cell line. Based on literature survey, a list of 32 plant species of cucurbitaceae family was prepared, which have been reported for antidiabetic activity or mentioned in ethnomedicinal and traditional system of medicines for antidiabetic potential. A total of 15 crude extract and their 75 fractions were prepared from 9 collected cucurbitaceous plants and their parts and screened against differentiated rat skeletal (L6) muscle cells in glucose uptake assay. Eight extracts/fractions from 4 plants (Cucumis callosus fruit, Luffa echinata fruit, Coccinia indica fruit and Cucurbita species aerial part) were found active in antidiabetic screening. The best antidiabetic activity was found in chloroform fraction of Luffa echinata fruit. After bioactivity guided column fractionation of this active fraction, the fraction M010/S/3/5 showed maximum activity in glucose uptake assay. EC50 was calculated as 0.59 μg/mL showed potent antidiabetic compound. Present study revealed that there is huge potential in cucurbitaceous plants for developing antidiabetic drug

Aerodynamic drag reduction by heat addition into the shock layer for a large angle blunt cone in hypersonic flow

Reduction in aerodynamic drag for a large angle blunt cone flying at hypersonic Mach number by heat addition into the shock layer is demonstrated in HST2 hypersonic shock tunnel. The heat addition is achieved by the exothermic reaction of chromium atoms ablated from the stagnation region of the chromium coated blunt cone with the atomic oxygen behind the shock wave. The measurements show about 47% reduction in the drag coefficient for a 60° apex angle blunt cone in a Mach 8 flow of 3.4 MJ/kg specific enthalpy. The reduction in drag is measured using the accelerometer based force balance system and the heat addition into the shock layer is identified by the surface mounted thin film heat flux gauges and the corresponding movement of the shock wave is visualized by schlieren pictures

Shock Tube as an Impulsive Application Device

Current investigations solely focus on application of an impulse facility in diverse area of high-speed aerodynamics and structural mechanics. Shock tube, the fundamental impulse facility, is specially designed and calibrated for present objectives. Force measurement experiments are performed on a hemispherical test model integrated with the stress wave force balance. Similar test model is considered for heat transfer measurements using coaxial thermocouple. Force and heat transfer experiments demonstrated that the strain gauge and thermocouple have lag time of 11.5 and 9 microseconds, respectively. Response time of these sensors in measuring the peak load is also measured successfully using shock tube facility. As an outcome, these sensors are found to be suitable for impulse testing. Lastly, the response of aluminum plates subjected to impulsive loading is analyzed by measuring the in-plane strain produced during deformation. Thus, possibility of forming tests in shock is also confirmed