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2021 ◽  
Vol 13 (1) ◽  
pp. 81-87
Author(s):  
Ratnesh Kumar Patel ◽  
Ram Prasad ◽  
Ravi Shankar ◽  
Prateek Khare ◽  
Maharshi Yadav

The methylene blue (MB) adsorption from the aqueous solution on activated charcoal from soapnut shell & pineapple waste were studied in batch mode. The influence of a major parameter determining the efficiency of the process, such as the initial concentration, the adsorbent dose and the contact time on the removal process, was studied. Experimental studies have shown that the adsorption capacity of methylene blue increases with the increase of the adsorbent dose and decreases with the increase of the initial concentration. The equilibrium time of 120 min was observed. The considered optimal dose for removing methylene blue from aqueous solutions from soapnut shell & pineapple waste were 0.6 g & 1g respectively. The equilibrium data corresponds precisely to the Langmuir isotherm.  


Author(s):  
Dr. T. J.Nagalakshmi , Et. al.

In current day security is very important. Nowadays, in all places many robberies are  going on. In this security issue, lock is the major parameter.  The trustworthy on the lock should me made improve. The lock may be for main door lock, baggage lock, shutter lock, grill door lock, interconnecting door lock etc.  This project is based on arduino board and IOT. And also this can be used for main door and for locker door. This lock works based on the knocking pattern. The owners knocking pattern is stored in the register. When the knocking pattern is detected by the sensor, it passes it to the arduino board microcontroller. Based on the trustworthiness of the pattern the lock works. This framework is easy for installation. It can be implemented for commercial use also.  


2021 ◽  
Vol 28 (2) ◽  
pp. 44-53
Author(s):  
Noor Mahmood ◽  
Assim Lateef

The main objective of this research is to investigate the effect of corroded steel bars on the ultimate flexural capacity of reinforcement concrete beams. The experimental work consists of four RC beams with dimensions (150×200×1200) mm tested under two-point concentrated loading. The major parameter of the current research is corrosion period (5,10,20) days. The amount of longitudinal and transverse reinforcement, concrete strength and, the other parameters were kept constant for all samples. The comparisons between specimens are based on the visual cracking loads, ultimate loads, deflection, cracks pattern and mode of failure. Results showed that visual first cracking load, and ultimate loads of corroded RC beams were decreased with increase corrosion durations relative to the control beam as a result of the corrosion process. The mode of failure was flexural failure for all specimens. Corrosion caused decreasing percentage in weight of steel bars and cross-sectional area of longitudinal steel bars. This percent increased as exposure time to corrosion process increased by 8.5% and 28.39% for 20 days respectively.


Author(s):  
Dr.M.D. Javeed Ahammed ◽  
Dr.G. Srinivasa Rao

In this paper a present time developing application is used that is a UAV Antenna in aerospace technology. These antennas play a vital role in this WIMAX technology. A patch antenna is designed such that all the dimensions should be shrinked yet efficient in radiation in comb shape and this proposed antenna is used at 4.2GHz frequency range. A CST tool is used for designing and simulating our antenna all the dimensions taken for proposed antenna are comparatively less when compared to conventional models. Low return loss, gain, bandwidth and VSWR are optimized by using this design the efficiency is also enhanced by 95% which makes our antenna suitable to the UAV WIMAX applications. Surface current is also one of the major parameter which is reduced by our proposed model.


2020 ◽  
Vol 239 ◽  
pp. 08003
Author(s):  
Shengli Chen ◽  
David Bernard ◽  
Jean Tommasi ◽  
Cyrille De Saint Jean

Atomic displacement is one of the key factors that influence the behaviors of material properties during and after irradiation. Many models, including the international standard metric Norgett-Robinson-Torrens model (NRT), have been developed to calculate the number of Displacement per Atom (DPA) using the energy of Primary Knocked-on Atom (PKA) as a major parameter. However, extensive experiments and simulations indicate that the NRT-DPA model seriously overestimates (about 3 times) the actual DPA. Nordlund recently developed the Athermal Recombination-Corrected DPA (ARC-DPA) model, which shows that the Molecular Dynamics (MD) simulations can be directly used to compute DPA by fitting the simulated data for each isotope. The present work proposes a simpler expression for the efficiency function to calculate the DPA without requiring fitting parameters as needed in the ARC-DPA model. Our DPA calculation results utilizing the improved efficiency function are validated against the experimental data for the Fe, Ni, Cu, and Ag. The applications in fast breeder nuclear reactors show good agreement with the ARC-DPA metric for 56Fe.


Main objective of the work was to investigate the output like emission from compression ignition engine which has been run by diesel as well as the blends of biogas with diesel. Volume flow rate of biogas with petrol as a major parameter to reach the expected outcome. The engine was operated with diesel, and blends of biogas 15%, 25% and 35% with petrol. The study focused on the variation of outputs hydrocarbon, carbon monoxide(CO) Nitrous oxides(NOX) and smoke for the brake power generated by the engine. The engine exhibits better results when the proportion of biogas was increased.


Author(s):  
Juan David Arias Correa ◽  
Alex Sandro Roschildt Pinto ◽  
Carlos Montez ◽  
Erico Leão

The transmission and storage of data collected by the devices are essential components of the Internet of Things (IoT). When devices send unnecessary or redundant information, it spends more energy, unnecessarily using the communication channel, besides processing at the destination, data that make a small contribution to the application. Data compression is a possible solution for the significant quantity of information generated by IoT devices. Data compression is the process of reducing the quantity of data necessary to represent some volume of data. This paper proposes the use of Swinging Door Trending (SDT) into an IoT environment and a new calibration step to select its major parameter: the compression deviation. A prototype was built, and experimental results show the effectivity of the proposal.


2019 ◽  
Vol 30 (2) ◽  
pp. 386-391 ◽  
Author(s):  
Said C. Farschtschi ◽  
Lan Kluwe ◽  
Gerhard Schön ◽  
Reinhard E. Friedrich ◽  
Jakob Matschke ◽  
...  

Now a days in VLSI design circuit’s reliability has become the major parameter of concern. With the consistently expanding requests for higher speed and lower control correspondence frameworks, productive VLSI executions of those blunder redress codes have extraordinary significance for reasonable applications. There exists various synchronized moderation procedures proposed to ensure that the blunders don't influence the circuit usefulness. Among them, to ensure the recollections and registers in electronic circuits Error Correction Codes (ECC) is normally utilized. At whatever point any ECC method is utilized, the encoder and decoder circuit may likewise endure mistakes. Here synchronized slip identification Also revision method to OLS encoders (OLSE) What's more syndrome figuring is suggested What's more assessed. Those suggested technique proficiently executes An equality prediction plan that detects the greater part errors that influence An solitary out hub utilizing the properties of OLS codes. Today VLSI design means usage of Verilog or VHDL. In this research work Verilog HDL is used for simulation and Synplify for synthesis purpose.


Neurology ◽  
2019 ◽  
Vol 93 (12) ◽  
pp. e1159-e1170 ◽  
Author(s):  
Maximilian I. Sprügel ◽  
Joji B. Kuramatsu ◽  
Bastian Volbers ◽  
Stefan T. Gerner ◽  
Jochen A. Sembill ◽  
...  

ObjectiveTo determine the influence of intracerebral hemorrhage (ICH) location and volume and hematoma surface on perihemorrhagic edema evolution.MethodsPatients with ICH of the prospective Universitätsklinikum Erlangen Cohort of Patients With Spontaneous Intracerebral Hemorrhage (UKER-ICH) cohort study (NCT03183167) between 2010 and 2013 were analyzed. Hematoma and edema volume during hospital stay were volumetrically assessed, and time course of edema evolution and peak edema correlated to hematoma volume, location, and surface to verify the strength of the parameters on edema evolution.ResultsOverall, 300 patients with supratentorial ICH were analyzed. Peak edema showed a high correlation with hematoma surface (R2 = 0.864, p < 0.001) rather than with hematoma volumes, regardless of hematoma location. Smaller hematomas with a higher ratio of hematoma surface to volume showed exponentially higher relative edema (R2 = 0.755, p < 0.001). Multivariable logistic regression analysis revealed a cutoff ICH volume of 30 mL, beyond which an increase of total mass lesion volume (combined volume of hematoma and edema) was not associated with worse functional outcome. Specifically, peak edema was associated with worse functional outcome in ICH <30 mL (odds ratio [OR] 2.63, 95% confidence interval [CI] 1.68–4.12, p < 0.001), contrary to ICH ≥30 mL (OR 1.20, 95% CI 0.88–1.63, p = 0.247). There were no significant differences between patients with lobar and those with deep ICH after adjustment for hematoma volumes.ConclusionsPeak perihemorrhagic edema, although influencing mortality, is not associated with worse functional outcomes in ICH volumes >30 mL. Although hematoma volume correlates with peak edema extent, hematoma surface is the major parameter for edema evolution. The effect of edema on functional outcome is therefore more pronounced in smaller and irregularly shaped hematomas, and these patients may particularly benefit from edema-modifying therapies.


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