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1364 articles for “top-down”
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A Review on Impact Analysis of Composite Armor
Abstract: Understanding the type of wave generated in a faulty region is important when using one of the main non-destructive testing tools, ultrasonic research. Recent dispersed research demonstrates that because of their low impact execution, layered composites have limited uses in cutting-edge auxiliary frameworks. The purpose of this inquiry is to provide new scientists who are working on ballistic-related topics with broad information on the most frequently used materials and ballistic …
Published in Trends in Mechanical Engineering & Technology · Vol. 13, Issue 1, 2023 · pp. 1–9 Read article
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Stair Climbing Wheelchair
Abstract: The wheelchair is an invention that has revolutionized the lives of people with disabilities, enabling them to move around independently and with greater ease. However, certain activities such as climbing stairs and working at heights have remained a challenge for people with disabilities, forcing them to rely on others for assistance. The solution to this problem has been the development of wheelchairs with elaborate sensors and gyroscopes that can perform …
Published in Trends in Mechanical Engineering & Technology · Vol. 13, Issue 2, 2023 · pp. 1–19 Read article
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Smart Bin Using GSM Modem
Abstract: AbstractIn the modern era, day-by-day urbanization has increased swiftly and waste production is also increasing day-by-day in the cities. Waste management has emerged as a major challenge for the cities. By the help of this paper we can achieve this good cause. In this paper, we are presenting the idea of smart bin which is based on Arduino and GSM modem Ultrasonic sensor is interfaced with GSM modem. Ultrasonic sensor …
Published in Trends in Opto-electro & Optical Communication · Vol. 8, Issue 1, 2018 · pp. 16–19 Read article
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Effects of Variation of Active Region Radius on the Performance Characteristics of a Designed 1550 nm Al0.09Ga0.38In0.53As/InP MQW VCSEL
Abstract: AbstractIn this work, the performance characteristics of a designed Al0.09Ga0.38In0.53As/InP based 1550 nm top emitting multi quantum well (MQW) vertical cavity surface emitting laser (VCSEL) has been obtained. By evaluating the attained result of different parameters of selected MQW VCSEL the peak material gain is obtained as 1652.3 cm-1. For 6.1 mA of injection current and 5.65 µm of active region radius, the optical output power of 31.37 dBm and …
Published in Trends in Opto-electro & Optical Communication · Vol. 4, Issue 3, 2014 · pp. 8–13 Read article
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Performance Analysis of a 1550nm MQW VCSEL by Varying Injection Current
Abstract: AbstractIn this work, the performance of a 1550nm top emitting multi quantum well (MQW) vertical cavity surface emitting laser (VCSEL) has been obtained for the selected quaternary compound In0.53Ga0.47As0.88P0.12 quantum well material the peak material gain is obtained as 1425cm-1. The optical output power of 31.35dBm and the resonance frequency of 5.8GHz are obtained at 6.1mA of injection current. Further by increasing the injection current up to 12mA a maximum …
Published in Trends in Opto-electro & Optical Communication · Vol. 3, Issue 2, 2013 · pp. 25–29 Read article
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Performance Analysis and Optimization of a 1550 nm MQW VCSEL by Varying Differential Gain and Injection Current
Abstract: AbstractIn this work, the performance characteristics of a 1550 nm top emitting multi quantum well (MQW) vertical cavity surface emitting laser (VCSEL) using AlGaInAs/InP are presented. Using this material the peak material gain is obtained as 1652.3 cm-1. A high performance designed VCSEL is obtained with the optimized value of differential gain and injection current. The optical output power of 31.37 dBm and the resonance frequency of 2.5 GHz are …
Published in Trends in Opto-electro & Optical Communication · Vol. 3, Issue 3, 2013 · pp. 31–37 Read article
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A Resource Efficient Fast Recovery Strategy for Survivable WDM Networks
Abstract: ABSTRACT In WDM networks when failure occurs, huge amount of data is lost in a fraction of second. Therefore, the failed connection request must be re-routed through backup route as soon as possible. For achieving fast connection recovery, the primary lightpath is either link or segmented protected. However, the strategies result in inefficient utilization of resources. In this paper, we present a resource efficient parallel signaling-shared path protection (PS-SPP) based …
Published in Trends in Opto-electro & Optical Communication · Vol. 2, Issue 1, 2012 · pp. 1–17 Read article
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Analysis Of Routing Protocols In Manet
Abstract: Mobile ad-hoc network (MANET) may be set up without any infrastructure or centralized controller. It could be built quickly in rural regions, military zones, and in emergency cases like earthquake. 3 unique types of routing protocols were classified according to their work's nature that are Proactive, Reactive and Hybrid routing protocols. Because of the mobility function of MANET nodes, routing protocols play critical role in determining the network efficiency in …
Published in Trends in Opto-electro & Optical Communication · Vol. 11, Issue 2, 2021 · pp. 13–17 Read article
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Insightful Innovations: A Review of Eye-controlled Mouse Hardware Development
Abstract: Many people who suffer from neurological disorders or those who have been rendered paralyzed by an accident find it difficult to use computers for everyday chores like sending and receiving messages, browsing the internet, or watching their favorite TV series or films. A recent study focused on the topic and discovered that eyeballs are an excellent candidate for eye tracking because they move properly when working with hardware. By using …
Published in Trends in Opto-electro & Optical Communication · Vol. 13, Issue 3, 2023 · pp. 28–32 Read article
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Dynamic Behavior of Asphalt Stabilized and Grid Reinforced Subgrade Soil
Abstract: The impact of repeated loading (punching shear) on Asphalt stabilized and grid reinforced subgrade soil have been investigated in this study. Specimens of 152mm diameter and 116 mm in height have been prepared, cured, and then tested using the pneumatic repeated load system PRLS. The deformation-load repetitions data were recorded for each case. Data were fed to the finite element software for the modeling process. An assessment was conducted to …
Published in Trends in Transport Engineering and Applications · Vol. 5, Issue 2, 2018 · pp. 1–9 Read article
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UTILIZATION OF INDUSTRIAL AND MUNICIPAL WASTE MATERIALS IN SOIL STABILIZATION OF RURAL ROADS: A REVIEW
Abstract: In India, the growth of rural sector directly depends on the road connectivity, which provides the platform and sustainability for economic activities in rural areas. However, difficult topography and unstable geology make the rural road constructions hard. Therefore, the locally available waste materials can be utilized to improve the soil characteristics and can promote the low cost road construction. The present Study is aimed to review the improvement of engineering …
Published in Trends in Transport Engineering and Applications · Vol. 6, Issue 2, 2019 · pp. 40–44 Read article
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Prioritization of Transit Stations to Promote as Transit-Oriented Development Using Analytic Hierarchy Process
Abstract: Multi-Criteria Decision-Making (MCDM) is always a tricky process for choosing the best optimal among various alternatives available. Analytic Hierarchy Process (AHP) is one of the most widely used concepts across the globe in different disciplines among various MCDM methods. In this study, AHP is used to prioritise the new or existing transit stations for its Transit Oriented Development (TOD) implication. TOD is known as multi faced planning concept which assures …
Published in Trends in Transport Engineering and Applications · Vol. 6, Issue 2, 2019 · pp. 14–29 Read article
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Index Properties of Bituminous Binder Modified With Polyethylene Glycol (PEG)
Abstract: Disposal of waste materials including waste plastic bags has become a serious problem and waste plastics are burnt for apparent disposal which cause environmental pollution. Utilization of waste plastic bags in bituminous mixes has proved that these enhance the properties of mix in addition to solving disposal problems. This paper develops the techniques to use plastic waste for construction purpose of roads and flexible pavements have reviewed. In conventional road …
Published in Trends in Transport Engineering and Applications · Vol. 2, Issue 2, 2015 · pp. 23–27 Read article
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Comparative Assessment of Using Visual and Close Range Photogrammetry Techniques to Evaluate Rigid Pavement Surface Distresses
Abstract: AbstractThe main task of this study is to introduce the close range photogrammetric approach for evaluation of rigid pavement surface condition, and compare the findings with the traditional visual evaluation technique. The visual inspection was conducted by walking through the roadway and evaluating the pavement surface distress visually. As for the photogrammetric fieldwork, it starts with generation of ground control points around the area of distress. A total station device …
Published in Trends in Transport Engineering and Applications · Vol. 2, Issue 2, 2015 · pp. 28–36 Read article
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Studies on Polymer Modified Bitumen with various Fiber Impregnation
Abstract: Transportation sector is showing immense growth in the recent decades, modern vehicles introduced require a more stable platform to run better. In terms of road construction, we are not yet reaching the modernized standards adopted by other countries and usage of modern and innovative road construction materials are yet to be used in transportation infrastructure sector. The available roads are also getting damaged due to improper maintenance of top layer …
Published in Trends in Transport Engineering and Applications · Vol. 1, Issue 3, 2014 · pp. 19–24 Read article
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Effect of the Position of Geotextile on the Performance Parameters of the Flexible Pavement
Abstract: The major deterioration of the flexible pavement is due to the combined effect of fatigue cracking caused by excessive horizontal strain at the bottom of the bituminous layer and rutting deformation caused by excessive vertical strain at the top of subgrade layer. For designing the flexible pavement, it is necessary to determine the minimum thickness of the road crust, required to withstand the expected fatigue life and rutting life. The …
Published in Trends in Transport Engineering and Applications · Vol. 3, Issue 2, 2016 · pp. 65–75 Read article
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Paramedical Emergency Planning and Response System for Mysuru City using GIS Techniques
Abstract: This study is conducted to create a real-time application for paramedical emergency planning and response for Mysuru city. The transportation network of the city is plays a vital role for any emergency cases. It provides the connectivity and accessibility from one place to another place. The location of Hospitals , accident spots, traffic junctions, one way details were imported to geo-database and also road network map have used and fixed …
Published in Trends in Transport Engineering and Applications · Vol. 3, Issue 3, 2016 · pp. 1–6 Read article
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A Review: Application of Ant Algorithm in Transport Network Design Problems
Abstract: A dependable and reliable information source for transportation route planning and ready response to traveler demand, have become a hot topic of research these days. Transportation route planning, analysis and processing of traveler demand are among most important factors affecting response to traveler demand. Because of highly dynamic networks and frequent discontinuity, it is desirable to establish routes for fast delivery of people and goods, having a low probability of …
Published in Trends in Transport Engineering and Applications · Vol. 3, Issue 3, 2016 · pp. 17–22 Read article
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PERFORMANCE STUDY ON SOIL STABILIZATION USING HIGHLY VULCANIZED RUBBER SHEET
Abstract: Roads are the major constructions. In India the road networks comprises of about 59,03,293 kilometers. The aim of this project is to replace the base course of the WBM with rubber and steel stacked mats. Over 1 million tonnes of rubber tyre wastes are produced in India and about 15 million tonnes of rubber tyre wastes are produced. In that about 60% of the rubber wastes are recycled. The reason …
Published in Trends in Transport Engineering and Applications · Vol. 9, Issue 1, 2022 · pp. 38–45 Read article
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Metrics and Measures to Job Placement
Abstract: ABSTRACTA successful job search procedure is marked by nearness to the dream job. This work elaborates the job navigation progression on basis of some experiments and studies. The most potent, elaborate with global reach, and efficient media to interface both job seekers and employers rides on internet. The work is attempted to serve the former and resolve problems. Some most experienced steps for searching jobs are detailed with. For more …
Published in Current Trends in Information Technology · Vol. 2, Issue 1, 2012 · pp. 26–38 Read article