International Journal of Innovations in Engineering Research and Technology <h2><strong>Welcome to IJIERT</strong> (Online, Scholarly, Open Access, International Journal)</h2> <p><strong><em>"International Journal of Innovations in Engineering Research and Technology (IJIERT)"</em> is an international journal. IJIERT is one of the fastest growing open access journals. It is an international online journal for the paper publication. The international journal provides the prospect to publish the original research papers with the author-friendly environment through its processes. This international journal is specially designed for paper publication in engineering, research, and technological advances.</strong></p> <p><strong>IJIERT international journal supports the open access journals society by providing the free access to the published scholarly articles without any login or passwords. We being online journal taking care of the online presence and indexing of the articles published in various databases.</strong></p> <p><strong>The paper submission in IJIERT is totally free of cost; however, after acceptance, we request the authors to pay the processing charges. We are working on high standards of scholarly journal publishing. Authors in search of international journals for paper publication will get fulfillment of publishing with our online international journal.</strong></p> <p><strong>The scholarly journal is available online since 2014. The open access journal is highly indexed in databases. IJIERT is peer-reviewed, open access online journal aiming to serve the technical society with its high-quality technical contents. We are one of the best international journals for paper publication.</strong></p> <p> </p> Novateur Publication, India en-US International Journal of Innovations in Engineering Research and Technology 2394-3696 DESIGN AND IMPLEMENTATION OF OTP BASED DOOR LOCKING SYSTEM <p>Vulnerability to criminality is emerging as a new social problem as the incidence of single-parent households rises rapidly. The fear of stranger visitors is known to be the main worry for single female households. The proposed system's goal is to give additional security measures that may be employed in both homes and offices. The secret word for security is first stored in the Electrically Erasable Programmable Read Only Memory [EEPROM] in this innovation. If the user inputs the proper password, a randomly generated OTP is delivered to the user's device via Bluetooth for two-way verification. The system will be unlocked and the required task can be started if the entered OTP matches. If either the password or the OTP is incorrect, access is prohibited, and the user is given a limited number of opportunities (3 chances in the proposed system). Our main goal is to use wireless (Bluetooth device) and embedded (Microcontroller) technology to create an integrated home security system. When compared to other security systems, the suggested solution delivers a low-cost service with guaranteed high security.</p> Shravani Nerli Smita T. S. N. Raksha Copyright (c) 2022 2022-01-04 2022-01-04 9 01 1 3 10.17605/OSF.IO/H86KD IMPROVEMENT OF THE LIGHTING SYSTEM DURING THE TRACK MAINTENANCE ON ADDIS ABABA LIGHT RAIL TRANSIT <p>Track maintenance realized at the right time is critical for achieving efficient and optimized maintenance and renewal work plans, thereby increasing the life of track component; whereas work done later is unquestionably unsafe, and maintenance and renewal costs rise exponentially as the railway track gets older. The rising demand for train service necessitates large investments in track maintenance and repair. The railway system's efficiency is increased through cost savings and better maintenance management. Addis Ababa Light Rail Transit Service (AA-LRTS) conducts the track maintenance during the night due to the fact that the track is no longer in operation within this period. Different precautions are undertaken in order to protect the manpower but the lighting issue is no longer well considered during the track maintenance while this light is more necessary to light the workplace and to carry out some activities such as the verification of the inner rail performance. The review of different articles related to the key words mentioned within the study topic and the observation carried out during the track maintenance with the maintenance team of AA-LRTS are referred to achieve the goal of this study. The present study is going to highlight the robustness and weakness concluded from the methods adopted by AA-LRTS for track maintenance. Various suggestions are mentioned for the optimum safety required to achieve a reliable maintenance operation and manpower life improvement.&nbsp; By respecting the suggestions provided by the author, the maintenance team will develop the efficiency of the maintenance operation and the manpower life will be saved.</p> Jules Yamuremye Copyright (c) 2022 2022-01-04 2022-01-04 9 01 4 16 10.17605/OSF.IO/S7QW5 STRESS-STRENGTH INTERFERENCE ANALYSIS OF AISI 4140 STEEL UNDER CONSTRAINED THERMAL EXPANSION USING MONTE-CARLO SIMULATION <p>Material properties and stresses acting on machine parts are not point values but are statistically distributed. Consequently, it is possible for stress and strength distributions to overlap, exposing weaker materials to stresses greater than their strengths, leading to failure. A Monte Carlo simulation was conducted on AISI 4140 steel subjected to constrained thermal expansion using practical statistical distributions of material properties and environmental variables. The probability of failure of constrained and unstrained AISI 4140 steels were compared and the results showed a lower probability of failure for the latter. The results also showed that at low to moderate stress levels, mechanical load and thermal stress had relatively similar impact on the probability of failure. However, at high stress levels, the effect of mechanical load was predominant.</p> Edidiong Uboho Olutayo Opeyemi Ogunmilua Efe Peter Iyomi Isaque Moyses Guimaraes Copyright (c) 2022 2022-01-05 2022-01-05 9 01 17 21 10.17605/OSF.IO/APKNG A COMPREHENSIVE IMPLEMENTATION OF MBKM PROGRAM: LESSON LEARNED FROM SCIENCE MAJOR DEPARTMENTS AT UNIVERSITAS KRISTEN MARANATHA, INDONESIA <p>In the era of the Industrial Revolution 4.0 and Society 5.0 plus pandemic COVID-19 as it is today, education in Indonesia has developed drastically by the implementation of MBKM Program. MBKM Program was a freedom of learning in campus environment of Indonesia that made the learning process is more flexible and according to student needs and demands. The learning process at Universitas Kristen Maranatha (UKM) has been developed by having Maranatha Online Learning (MORNING) system combined with MBKM Program. The purpose of this study is to describe the effectiveness of the implementation of MBKM Program from Science Major Departments at Universitas Kristen Maranatha, Indonesia. A set of questionnaires has been set up to analyze the implementation of MBKM Program in study area. The results showed that majority of lecturers, students and academic workers are interested to participate the MBKM Program. However, there is an opportunity to improve the increase of MBKM campaign activities both from government and internal university. The MBKM program provides challenges and opportunities for the development of innovation, creativity, capacity, personality, and student needs. Through ability requirements, real problems, social interaction, collaboration, self-management, performance demands, targets, and achievements, it is expected that a well-designed and implemented MBKM program, students' hard skills and soft skills will be formed strongly.</p> Robby Yussac Tallar Maya Malinda Olga Pattipawaej Efferiki Prabu Madvi H. A. S Frankie Padapotan Purba Copyright (c) 2022 2022-01-05 2022-01-05 9 01 22 27 10.17605/OSF.IO/HA6RN IMPROVED PERTURB & OBSERVE MPPT METHOD USING PI CONTROLLER FOR PV SYSTEM BASED ON REAL ENVIRONMENTAL AND CLIMATIC CONDITIONS <p>This paper covers the implementation of one of the most popular MPPT algorithm, Perturb &amp; Observe Algorithm based on Proportional Integral (PI) Control for a typical PV system under real environmental and climatic condition. The environmental parameters were collected from an experimental setup made of Solar Meter and Temperature sensor to record Solar Irradiation and temperature respectively on a 50Watts Solar panel. The Experimental setup was mounted on the Campus of the University of Buea, Cameroon and data collected for one day in November which falls in the dry season at the site. The Real environmental parameters were injected into MATLAB/ Simulink were the system was investigated to show the enhancement of the tracking performance of the MPPT system coupled with PI controller.</p> Ambe Harrison Jean de Dieu Nguimfack Ndongmo Eustace Mbaka Nfah Olome Baudouin Ekute Copyright (c) 2022 2022-01-09 2022-01-09 9 01 28 38 10.17605/OSF.IO/M5J6R AN EXPERIMENTAL INVESTIGATION FOR DEVELOPMENT OF STRENGTHS OF HIGH STRENGTH CONCRETE USING SILICA FUME AND STEEL FIBERS IN COMPOSITE <p>The present work deals with the results of experimental investigations on silica fume concrete, steel fiber reinforced concrete. Effect of these fibres on various strengths of concrete are studied. Fiber content varied from say (0.5%, 1.0%, 1.5%, 2.0%, 2.5%, 3.0%, 3.5%, 4.0%, 4.5%, and 5%) by weight of cement.The silica fume is used at constant percentage of 7.5% by weight of cement. Various strengths considered for investigation are compressive strength, flexural strength, split tensile strength for silica fume and steel fibre reinforced concrete.Bond strength is also studied. Cube of size 150 mm for compressive strength, Prisms from flexure tests were used for split tensile strength, beams of size 700 mm x 150 mm x 150 mm for flexural strength were cast. All the specimens were water cured up to 28 days and tested subsequently.The workability is measured with the slump cone test. he density at 28 days is calculated. Ductility of concrete is found to increase in the fibre reinforced concretes as observed from the load deflection study. The Poisson’s ratio is found to vary within the specified limits.The Static and Dynamic Modulus of concrete are studied. Relation between compressive strength and flexural strength are developed. A comparison of results of silica fume concrete fiber reinforced concrete with that of normal concrete showed the significant improvements in the results of various strengths.</p> Rupali Bhaskar Borde Copyright (c) 2022 2022-01-14 2022-01-14 9 01 39 43 10.17605/OSF.IO/FGDB5