AN AUTONOMOUS MOBILE ROBOT FOR REFINERY INSPECTION

Industrial safety is one of the main aspects of industry specially refining industry. To avoid any types of unwanted phenomena all refining industry follows some basic precaution and phenomena. Communication is the main key factor for any industry today to monitor different parameters and take necessary actions accordingly to avoid any types of hazards.To implement a robotic system to autonomously navigate in an oil and gas refinery and it must be able to communicate with the control room and also localize it and alert workers in hazardous leakages and other accidents. Oil and gas refineries can be a dangerous environment for numerous reasons, including heat, gasses and humidity at the refinary. In order to augment how human operators interact with this environment, a mobile robotic platform is developed. This paper focuses on the use of WiFi for communicating with and localizing the robot. All the algorithms implemented are tested in real world scenarios with the robot developed and results are promising

Effective Data Hiding Method Through Pixel Pair Matching

This work proposes a new data-hiding method based on pixel pair matching , which is to use the values of pixel pair as a reference coordinate, and find a coordinate in the neighborhood set of this pixel pair based on the given message. Further the pixel pair is replaced by the searched coordinate to cover the digit. Two methods has been proposed to overcome this problem one is Exploiting modification direction (EMD) and another is diamond encoding (DE). The proposed methods offer lower distortion as compared to the existing methods by providing more compact neighborhood sets and allowing embedded digits in any notational system

Advanced Security System For Railways Using ARM7

In this paper we have discussed about the automotive control and communication systems of the train using High Performance Multi-core Embedded Processors (MCEP). This method has been developed based on the disadvantages of the existing system such as detecting cracks at rails, monitoring distance between rails, compartments monitoring, fire and smoke monitoring in compartments, and controlling of motors, transformers, pantograph etc. by manual operations. As Wireless Sensor Nodes (WSN) and High- energy laser based ultrasonic approach are available in the recent techniques, Train Automation (TA) can be resourcefully done for managing train parameters and monitoring any abnormal conditions in real-time without delays and accidents. All parameters will be processed, controlled, and managed at Electric Locomotive Engine (ELE) with help of advent of wireless technologies. To speed up the operations, all received data will be quickly processed by Multi-core Embedded Processors (MCEP) with help of Multi-core Embedded Software. From the point of view of energy efficiency, train automation is an interesting approach to the challenges of traffic fluidity control, energy efficient driving, regenerative braking, and managing power consumption in electrical devices in trains. To reduce human errors and get the fast response, TA will be a wonderful one with help of MCEP

OPTIMIZATION OF PAPAIN EXTRACTION BY AQUEOUS TWO-PHASE SYSTEM (ATPS) USING RESPONSE SURFACE METHODOLOGY (RSM)

Abstract: This work attempts to study and optimize aqueous two-phase system (ATPS) made of PEG, sodium carbonate and PEG, sodium sulphate. Three factors ;PEG concentration, salt concentration and pH affecting the papain partitioning were studied. The statistical analysis showed that for both systems the phase forming salt concentration significantly affect the "K" value for papain partitioning. However, the performance of PEG/Na 2 CO 3 system was generally better than PEG/Na 2 SO 4 system. Hence, detail study was carried out on the PEG/Sodium carbonate system using CCRD (Central Composite Rotatable Design) in Response Surface Methodology (RSM). The optimal condition gave a "K" value of partitioning of 1.51 with a yield of 76%

A Case Report on Multiple Adverse Events Associated with Systemic Usage of Dexamethasone

Dexamethasone is a corticosteroid used in the management of various allergic conditions, inflammatory and autoimmune disorders such as rheumatoid arthritis, nausea and vomiting associated with cancer chemotherapy, multiple sclerosis, cerebral edema. ADRs associated usage of corticosteroids includes steroid-induced hyperglycemia, osteoporosis, dyslipidemia, steroid-induced Cushing syndrome, cataracts, increased risk of infections, and thinning of the skin. Cushing's syndrome is a hormonal disorder triggered due to chronic exposure of body tissues to high levels of cortisol. As corticosteroids are widely used by physicians for the management of various inflammatory disorders, patients must be warned about the possible ADRs associated with chronic use. In summary, this is a case of a patient who developed multiple adverse events after usage of dexamethasone that is evident by clinical features and laboratory investigations for which the patient was successfully provided with symptomatic and supportive care. Keywords: Adverse Drug Reaction (ADR), Buffalo hump, Hyperglycaemia, Osteoporosis

Influence of Wire EDM Parameters on the Multiple Performance Characteristics using TOPSIS

The present work is to explore the influence of wire electro discharge machining (EDM) process parameters on the multiple performance characteristics of material removal rate (MRR) and surface roughness characteristics (Ra and Rz). A number of controlled experiments were done on a medium carbon steel EN8 using CNC wire EDM machine. Taguchi’s standard L18 orthogonal array (OA) has been followed for conducting the experiments. The optimal setting of process parameters was analysed by employing entropy method coupled with technique of order preference similarity to ideal solution (TOPSIS) and analysis of variance (ANOVA). From the analysis, the optimal combination of process parameters in order to achieve multi-responses is obtained at flushing pressure of 8Kg/cm2, pulse-on-time of 125μsec, pulse-off-time of 55 μsec, wire tension of 6 mm/min, wire feed of 2 Kg-f, servo voltage of 25 volts respectively

Synthesis and Pharmacological Evaluation of Some Phenylpyrazolo Indoquinoxaline Derivatives

Indoloquinoxalin was fused with 2,3 diphenyl quinoxaline by a methylene bridge which was then allowed for acetylation. The acetylated product was made to react with different aromatic aldehydes to give chalcones. Chalcones refluxed with substituted acid hydrazides to afford different indoloquinoxaline pyrazolines. The structure of chalcones and indoloquinoxaline pyrazolines were confirmed by M.P, TLC and spectral data. All the synthesized compounds were screened for their antioxidant, anti-inflammatory and antihistamic activities

Antimicrobial Evaluation and Synthesis of Some Phenylpyrazolo benzothiazolo quinoxaline Derivatives

2,3-Diphenyl quinoxaline (SI) was fused with 2-amino benzothiazoles (SII) by a methylene bridge, which was then allowed for acetylation. The acetylated product (SIV) was made to react with different aromatic aldehydes to give chalcones (SV1-SV5). Chalcones refluxed with substituted acid hydrazides to afford different phenyl pyrazolo benzothiazolo quinoxaline derivatives (SVI1-SVI15). The structure of chalcones and phenyl pyrazolo benzothiazolo quinoxaline derivatives were confirmed by M.P, TLC and spectral data. All the synthesized compounds were screened for their antimicrobial activities

Lead removal using Fallen Coffee Plant Leaves (FCPL) powder: Characterization, Equilibrium, Kinetics and Thermodynamic studies

Biosorption of lead onto Fallen Coffee Plant leaves (FCPL) powder from an aqueous solution was studied in the present study. The characterization of FCPL powder was done by FTIR, XRD, SEM and BET. The equilibrium agitation time for lead biosorption is 60 min. The optimum pH and dosage values are 5.2 and 20 g/L respectively. In the range of variables studied, percentage biosorption is increased from 75.1 to 95.5 %. The maximum uptake capacity of 3.664 mg/g is obtained at 303 K. In the present investigation the equilibrium data was well explained by Langmuir, Redlich-Peterson with a correlation coefficient of 0.99, and followed by Temkin and Freundlich isotherms. The kinetic studies reveal that the biosorption system obeyed the pseudo second order kinetic model by considering the correlation coefficient value as 0.99. From the values of ∆S, ∆H and ∆G it is observed that the biosorption of lead onto Fallen coffee plant leaves(FCPL) powder was irreversible, endothermic and spontaneous