International Journal of Recent Technology and Engineering (IJRTE)

Journal Information
EISSN : 2277-3878
Total articles ≅ 11,254

Latest articles in this journal

International Journal of Recent Technology and Engineering (IJRTE), Volume 10, pp 129-133;

This paper aims to propose a novel approach to determination of way points position on sequencing leg for point merge system. This research uses the Base of Aircraft Data to analyze the flight efficiency. Although it is not a general rule, it can be said that there is a tendency in practice to design the waypoints in the sequencing leg at equal distances from each other. In general, essentially equidistant waypoints are designed to facilitate the adaptation of airspace users (both pilots and air traffic controllers). However, it does not seem possible to say that this tendency always gives the most appropriate and optimal results in terms of flight efficiency. A scenario that includes four different cases was ideated and was resolved to discover the potential benefits and/or drawbacks of equidistant and non-equidistant interspace of waypoints. The comparison results of equidistant and non-equidistant interspace show that the average reduction of 9,5 percent of total flight time; 12,5 percent of total flight distance in favor one of a non-equidistant interspace, which is Case-4. Moreover, the Case-4 could be a promising solution for sequencing aircraft conveniently in terms of a first come first service (FCFS) rule.
Prabhash Chandra Katiyar, , ,
International Journal of Recent Technology and Engineering (IJRTE), Volume 10, pp 38-52;

Fused Deposition Modeling (FDM) is one of the most commonly used 3D printing technologies for creating complex parts from a Computer Aided Design (CAD) model. It is observed that mechanical strength of 3D printed polylactic acid (PLA) parts are affected by various parameters associated with part, process, material and operating conditions. One of the key parameters that influences tensile and flexural strength of 3D printed PLA parts is build orientation. Researchers have investigated the effect of a limited number of build orientations on tensile strength. Moreover, less work has been reported which studies the effect of build orientation on flexural strength. None of the studies modeled tensile load and bending load as a function of thickness and compared tensile loading capacity with flexural loading for different orientations. Therefore, an attempt is made to include a greater number of build orientations that occur during 3D printing of complex PLA parts. Build orientations considered in this study are flat, flat-support, edge, edge-45, upright and upright-45 with three thicknesses i.e., 1.2 mm, 2.0 mm and 2.8 mm. Tensile and flexural tests are performed as per American Society for Testing and Materials (ASTM) standards. Experimental results show that six orientations form two groups i.e., strong orientation group and weak orientation group. PLA appears stronger in tensile loading than bending. Edge orientation is strongest during tensile as well as bending loading whereas upright orientation is weakest in tensile loading and upright-45 orientation is weakest in bending. Force trends, it can be concluded that thickness can be minimized where build orientation belongs to the strong orientation group. Similarly, thickness can be increased where build orientation belongs to the weak orientation group.
Hirofumi Maeda
International Journal of Recent Technology and Engineering (IJRTE), Volume 10, pp 65-72;

Since 1965, the sewerage system development have been promoted in Japan, but as the number of management facilities has increased, the number of facilities that have been used for a long time has also increased, and nowadays, they are too old for daily operation. Because of this problem, the maintenance of drainage and sewer pipes have been carried out continuously. However, in-pipe inspection has a wide inspection range and is a harsh task for operating personnel, which leads to actively-performed inspections using robots in recent years. Under the circumstances mentioned above, the stand-alone type of robot, which can inspect piping by itself, is becoming the mainstream at present. We have focused on the capability of embedding downsized yet high performance PCs and sensors. In recent years, we have been studying and developing robots with those capabilities on board for piping inspection. However, for the inspection using the robot, there is always the risk that the robot itself tips over due to the undulation of the pipe joint and the slip caused by sludge. Therefore, we devised a self-position estimation in absolute coordinates using only an accelerometer in order to achieve highly accurate straight-ahead control for preventing tip over as a software approach without relying on hardware approach such as tire replacement or similar methods. Currently, we are in the stage of verifying this self-position estimation, and for that purpose, we need an instrument for measuring the position of the robot. Therefore, in this paper, we propose the structure of the measuring instrument that does not significantly disturb the driving of the robot due to the disturbance caused via the connection part of the piping inspection robot and the measuring instrument. In addition, as a result of experiments, even in the initial state where the accuracy of the measuring instrument is not calibrated, the average translation error is within 0.58 mm, the average angle error is within 0.12 degree, the standard deviation of the translation error is within 0.86 mm, and the standard deviation of the angle error is within 2.67 degree. It is shown that it can be used for verification of the robot.
, P. Vasudeva Reddy
International Journal of Recent Technology and Engineering (IJRTE), Volume 10, pp 77-82;

The group key management technique is an important technique for cryptographic applications. In this paper, we implemented our proposed method [1] on a group key management protocol for group communication. The proposed protocol is authenticated group key distribution protocol is a mechanism for distributing a group key. We also discussed security analysis and attacks in active and passive adversary model. Also, it ensures semantic security as well as Key freshness of the group key. Along with this, they provide implicit and mutual authentication of the group key. Furthermore, the protocols provide key independence, provide Perfect Forward Secrecy and are resistant to Known Key Attack Implementation of proposed protocol in NS2 simulator.
International Journal of Recent Technology and Engineering (IJRTE), Volume 10, pp 88-95;

The need for renewable energy systems (RES) continues to grow, and research into wind and solar systems has accelerated in recent years. At the moment, the world's energy requirements are heavily reliant on fossil fuels, which are on the verge of extinction. Renewable energy demand will skyrocket in the next years. Our study demonstrates a robust energy generating system that utilises photovoltaic MPPT and a 13-level inverter system in MATLAB simulink to maximise the output of the solar panel. To optimise the advantages of such network interface distribution systems, a control approach is developed. The inverter is programmed to perform several purposes, including active power filtering. Thus, the inverter may be employed as a power converter to power the network's renewable energy sources. The MATLAB / Simulink simulation is used to execute and verify all of the analyses by subjecting the system to dynamic load conditions.
Dharmendra Kumar Yadav, Devi Charan Dubey
International Journal of Recent Technology and Engineering (IJRTE), Volume 10, pp 96-101;

This research paper describe the effect on compressive strength of interlocking titles, in which cementcis a bindingcmaterial, a substance used incconstruction that sets andchardens and can bind othercmaterials together. It iscwidely used in constructioncwith great advantages but cementcwith its wide range ofcproperties has severalcdisadvantages as well. Manufacturing ofccement causes illceffect on environmentcat all stages ofcprocess. These include emissionscof airborne pollutioncin many forms suchcas dust, gas, noisecand vibration. Usuallycmanufacturing of cementccauses emission of greenhousecgas carbon dioxide to 5% inccement structures toc8% in case of roadscin cement. Cement manufacturing releasescCO2 in atmosphere bothcdirectly and indirectly. Directlycwhen Calcium Carbonatecis heated, producing limecand carbon dioxidecand also indirectly through emissioncof energy. The cementcindustry produces up toc5% of global manmade CO2cemission. The productioncof Portland cementcis not only costlycand energy intensive, butcit also produces largecamounts of carbon emissions. Thecproduction of one ton ofcPortland cement producescapproximately one toncof CO2 in the atmosphere. The productivecuse of waste material representsca means of alleviating somecof the problems of solidcash, lime and demolished concrete.
International Journal of Recent Technology and Engineering (IJRTE), Volume 10, pp 134-136;

In this paper the different dielectric covers affects on square patch antenna is investigated and compared their performance. The square patch antenna is designed at 2.4GHz with arlon diclad 880 substrate. The dielectric constant of substrate is 2.2 and thickness of substrate is 1.6mm. The different dielectric covers or superstrates are used whose dielectric constants are 2.2, 3.2, 4.8 and 10.2. The patch antenna is simulated using Ansoft electromagnetic simulator such as HFSS. The effect of dielectric cover at height (H) =0 on patch antenna, the result is the performance of antenna is slightly decreased and as increase the height of the dielectric cover above the patch performance antenna is slightly increases as increases height of the dielectric cover above the patch, but at optimum height, performance of the cover results which is same the antenna without dielectric cover. The uses of dielectric covers are used to providing protections from physical damage, rain and snow and also protecting the antenna from physical heat and other environmental hazards. This antenna designed specifications and frequency 2.4GHz is used in wireless applications.
International Journal of Recent Technology and Engineering (IJRTE), Volume 10, pp 1-6;

Reason: The review plans to clarify the connection among bookkeeping and money through estimating the impact of objective working capital administration on benefit. Design /Methodology /Approach – Employing the system of semi organized meetings with sixteen monetary administrators. Finding – The discoveries brought up the connection among bookkeeping and money is integral, since it upholds the bookkeeper by the basic abilities and data, like project assessment, dealing with the organization subsidizing assets and working capital administration. These abilities put the bookkeeper up to the monetary administrator stage. The functioning capital venture and financing approaches altogether affect benefit. These approaches identified with hazard and return hypothesis; since the moderate strategy will decrease both the hazard and return and the forceful one will have the contrary effect. Originality/Value – It prescribes bookkeepers to be in proficient stage and increment the productivity of the organization to snatch both bookkeeping and money data and abilities.
International Journal of Recent Technology and Engineering (IJRTE), Volume 10, pp 21-27;

Long welded rails (LWR) are preferred in metro rail systems because they provide a smooth ride. They are extremely sturdy, require less maintenance and safe to travel at higher speeds. Rail structure interaction (RSI), especially additional longitudinal stresses in rail, is the major concern in the LWR. UIC standards provide the limitations of additional rail in longitudinal stresses. This paper studies the characteristics of additional forces in long welded rail used in one of the Metro Railway systems in India. The LWR is placed on five spans with integral intermediate piers of balanced cantilever superstructure (BCM). A nonlinear finite element analysis is performed using the analytical tool MIDAS CIVIL 2021 to study the interaction mechanism. For this study, rail and deck (unballasted) are linked with a multilinear elastic spring, as recommended in UIC 774-3R. The study was conducted in accordance with the International Union of Railways and Indian standards. This paper shows a comparison of the rail stresses along the rail due to combined thermal and live loading for both balanced cantilever span and conventional simply supported spans. The results show that rail stresses have significant variation due to bearing articulation, adjacent spans and integral BCM system.
International Journal of Recent Technology and Engineering (IJRTE), Volume 10, pp 28-37;

The quality of lubricant oil plays a central role in the performance of machineries. Aggressive working environment of industry, particularly in mining industry, remains a dominant point in faster rate of degradation. The colossal consumption of oil is a factor to an inflated maintenance cost which can be averted by optimizing the lubricant oil consumption using scientific and methodical approaches. At present the schedule drain-off interval is accomplished at a regular interval of operation hour recommended by manufacturers. This is a conservative approach and results in loss of useful life. This work aims to determine the Remaining Service life (RSL) of the engine oil in Excavators. The oil properties are measured at regular intervals. Kinematic Viscosity, Viscosity Index (VI), Total Acid Number (TAN) and Total Base Number (TBN) are measured. The measured values suggest the degradation level of oil before filling fresh oil. The remaining service life (RSL) is determined by juxtaposing Parameter Profile Approach (PPA), Analytical Hierarchy Process (AHP) and Vector Projection Approach (VPA). The approach will be a precursor to the excavator maintenance personnel to drain-off the oil at right time despite of manufacturer’s recommendation.
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