SYNTHESIS OF ACTIVATED CARBONS FROM PUTRESCIBLE SOLID WASTE FOR TREATING TEXTILE DYE EFFLUENT

In the present study an attempt has been made to compare the adsorption efficiency of activated carbons (PVW and PFW) prepared from putrescible solid waste. Methylene blue dye (MB) was selected as the model compound. Activated carbons were characterized to find their adsorption capacity. Batch mode adsorption studies were conducted to evaluate the effect of various parameters. BET surface area was found to be 603.7 and 227.3 m2g-1 for PVW and PFW respectively. The adsorption followed pseudo second order kinetics for both the adsorbents. The isotherm data concluded that the adsorption of MB onto both the adsorbents is monolayer and chemisorption in nature. The adsorbents showed a maximum desorption of 40.2% for PVW and 70.1 % for PFW. Batch mode adsorption was carried out with textile dye effluent and the results confirmed that the activated carbons can be employed as effective adsorbents for improving their quality. Â

Polychlorinated Biphenyls-Induced Oxidative Stress on Rat Hippocampus: A Neuroprotective Role of Quercetin

Present study is aimed to evaluate the ameliorative role of quercetin on PCBs-induced oxidative stress in hippocampus of Wistar rats. Group I rats received vehicle (corn oil) intraperitoneally (i.p); Group II received quercetin 50 mg/kg bwt/day (gavage); Group III received PCB 2 mg/kg bwt/day (i.p); Group IV received PCB (i.p) and simultaneously quercetin through gavage. After 30 days, rats were euthanized and hippocampus was dissected from each rat brain. Oxidative stress was assessed by determining the levels of H2O2, LPO, Pcc, and alteration in the functional markers such as CK, AchE, and ATPases activities in the hippocampus of control and experimental animals. A significant increase in the levels of stress markers and decrease in level of functional markers were observed in PCBs-treated rats. Moreover DNA fragmentation and histological studies were ascertained to confirm PCBs toxicity. In conclusion, quercetin shows a protective role against PCBs-induced oxidative damage in rat hippocampus

Performance and Emission Characteristics of a Diesel-LPG Duel Fuel in Greeves Engine

The main perspective of this paper is to analysis the performance and emission of the diesel engine where diesel is used as primary fuel and LPG is used as subsidiary fuel. In this LPG is attached to the inlet manifold of the engine in which LPG combines with the molecules of oxygen and it barges into the combustion chamber of the engine. Inside this combustion chamber, diesel is injected by an injector during the end of the compression stroke, after this atomization of the fuel takes place eloquently. By this immediately after the combustion of the fuel, heavy loads of power is produced inside the combustion chamber and this is followed by the liberation of exhaust gases such as Hydrocarbon (HC), Nitric oxide (NOx), Carbon monoxide (CO), Carbon dioxide (Co2), Oxygen (O2) etc., As a result of this experiment the emission and the specific fuel consumption of the engine was reduced and brake thermal efficiency was increased. Thus this experiment shows that using LPG as an additive fuel with diesel which is an injecting fuel will increase the efficiency with respect to the traditional diesel fuel operation mode in the diesel engine

Performance and Emission Characteristics of a Diesel-LPG Duel Fuel in Greeves Engine

The main perspective of this paper is to analysis the performance and emission of the diesel engine where diesel is used as primary fuel and LPG is used as subsidiary fuel. In this LPG is attached to the inlet manifold of the engine in which LPG combines with the molecules of oxygen and it barges into the combustion chamber of the engine. Inside this combustion chamber, diesel is injected by an injector during the end of the compression stroke, after this atomization of the fuel takes place eloquently. By this immediately after the combustion of the fuel, heavy loads of power is produced inside the combustion chamber and this is followed by the liberation of exhaust gases such as Hydrocarbon (HC), Nitric oxide (NOx), Carbon monoxide (CO), Carbon dioxide (Co2), Oxygen (O2) etc., As a result of this experiment the emission and the specific fuel consumption of the engine was reduced and brake thermal efficiency was increased. Thus this experiment shows that using LPG as an additive fuel with diesel which is an injecting fuel will increase the efficiency with respect to the traditional diesel fuel operation mode in the diesel engine

Varicose Veins Treatment Using Automated Stockings

This work presents a home based automated temporary treatment for patient healthcare to be made easier. Varicose veins are veins that are twisted and bulging. Varicose veins can form near the surface of the skin (superficial veins). Varicose veins most commonly affect the veins in the legs. The proposed system consists of a wearable device with vibrating motors connected to an ESP32. Here pressure sensors are used to measure variation of blood pressure in the upper and lower region of the body and if the reading of pressure is higher in the lower region compared to the upper region, then it will activate the motor to give in the exercise to subtle pain and the block of blood in the nerves. This exercise is also given in a periodic time interval without waiting until pressure variation is observed. These automated stockings will also behave as a normal compression stocking when vibration is not applied. In simple words the new designed stocking can perform in 3 ways. The signal acquired from the pressure sensor is processed by ESP32. This in turn activates the motor(to provide periodic vibrations). Patients will be able to receive rapid temporary therapy if this rehabilitation system is implemented

Techno-Economic Analysis and Optimization of Hydrogen and Mechanical Energy Storage Systems

The increasing significance of renewable energy sources is thrusting the load cycling of fossil-fueled power plants (FFPP), designed to operate under nominal-load conditions. Integration of energy storage systems (ESS) with the FFPPs such as hydrogen energy storage (HES) and mechanical energy storage facility such as compressed air energy storage (CAES) shows the potential to minimize the levelized cost of electricity during high demand scenarios and also minimize the negative impacts of off-design FFPP operation. The deployment of energy storage facilities at the FFPP level have considerable potential advantages as they can be exploited within the existing equipment items and facilities for improving the efficiency of the storage technologies and reducing required storage capacities. The project focuses on the development of first principles model for the ESS. These storage models are integrated with the high-fidelity dynamic plant model such as the Natural Gas Combined Cycle (NGCC) plant configuration. NGCC plant model being highly nonlinear poses more computational flexibility which is a major concern for optimization/control perspectives. Hence, a reduced-order model (ROM) of the corresponding FFPP integrated with ESS for each system configuration was developed. Reduced order model development is a sub modeling approach whereby the high-fidelity complex model could be reduced into a computationally efficient structure. The reduced dynamic model projects the important behavior of the true model with reasonable accuracy and better computational efficiency. A detailed techno-economic analysis (TEA) of CAES and HES integrated with NGCC is evaluated. This study performed a dynamic process optimization by utilizing input-output data from the developed ROM models by incorporating of 14 regional electricity signals (LMP) with different carbon tax of whole year and NPV maximization as an objective function. For this framework of energy system configuration, the optimal design conditions of CAES and HES units are decided and optimal profiles of different parameters with respect to LMP are shown

CT-DNA interaction, Fluorescence binding and Microbial activity of Schiff base metal complexes derived from 4-bromobenzaldehyde and 2-amino-6-methylbenzothiazole

A novel bidentate Schiff base ligand was prepared by the condensation of 4-bromobenzaldehyde and 2-amino-6-methylbenzothiazole. The ligand has been characterized by microanalytical data such as IR, UV-Vis, 1H-NMR, EPR and Mass spectra. Its complexes of Cu (II), Ni (II), Co (II), and Zn (II) were synthesized and characterized by spectral and analytical techniques. This fact shows the composition of the type ML2 where, M= Cu (II), Ni (II), Co (II), and Zn (II). The UVV is spectral data implies that the complexes have octahedral geometry. They show non electrical conductance which reveals that these chelates are electrolytes. Their magnetic susceptibility values afford evidence for the monomeric nature. Absorption and gel electrophorese experiments have been accepted out on the interaction of the complexes with CT-DNA and results suggest that all the complexes of DNA and Fluorescence binding. The Antimicrobial activities of the compounds are tested in vitro against four bacteria

Varicose Veins Treatment Using Automated Stockings

This work presents a home based automated temporary treatment for patient healthcare to be made easier. Varicose veins are veins that are twisted and bulging. Varicose veins can form near the surface of the skin (superficial veins). Varicose veins most commonly affect the veins in the legs. The proposed system consists of a wearable device with vibrating motors connected to an ESP32. Here pressure sensors are used to measure variation of blood pressure in the upper and lower region of the body and if the reading of pressure is higher in the lower region compared to the upper region, then it will activate the motor to give in the exercise to subtle pain and the block of blood in the nerves. This exercise is also given in a periodic time interval without waiting until pressure variation is observed. These automated stockings will also behave as a normal compression stocking when vibration is not applied. In simple words the new designed stocking can perform in 3 ways. The signal acquired from the pressure sensor is processed by ESP32. This in turn activates the motor(to provide periodic vibrations). Patients will be able to receive rapid temporary therapy if this rehabilitation system is implemented