Joining of dissimilar materials is increasing interest for a wide range industrial applications like nuclear, thermal power. The automotive industry, in particular, views joining as gateway the implementation lightweight materials. Friction welding tube to plate using an external tool innovative friction process and capable producing high quality leak proof weld joints. In present study, steel commercial aluminum with without projection have been performed. joints were evaluated by...

The regular attendance system continued in the educational where instructor announced name of every single student and marked attendance, causing time wastage during address time. This turned out to be increasingly more time-consuming particularly current situation number students a class is exceptionally huge. Dealing with information huge gathering additionally troublesome. Another burden present opportunity for stamp fake attendance. These days mobile phones can tackle vast majority issue...

In the recent times, modular multilevel converter (MMC) is a prominent choice of power electronic in medium voltage (MV)/high (HV) applications. The main features MMC are design, scalability, reliability, fault tolerance capability, high step-up ratio and less filtering requirements. This paper presents transformer-less based electric vehicle (EV) battery charger. A step-up/down dc-dc designed such that input converted to level. configuration ensures significant reduction complexity system...

Rock salt is considered as the most suitable material for underground storage of hydrocarbons well disposal sites hazardous waste in view its unique physical and mechanical behaviour. In India, rock reserves are spread sub-surface over an area more than 50,000 sq.km. covering much north-western region Rajasthan. So far, limited studies on properties this have been carried out. This paper discusses behaviour under uniaxial compression (UCS) measured from samples collected in-situ. As reported...

The geometric intricacy of tiny gears makes nano-finishing difficult. In the current study, magnetorheological (MR) polishing process is used for intricate surfaces gear components uniformly. For polishing, technique employs a dynamic fluid recognized as (MRPF), that has ability to stiffen in presence magnetic field. Base media, iron and abrasive particles are utilized synthesize MRPF. Permanent magnets produce necessary field finishing zone. Finite element analysis (FEA) model understand...

The wireless power transfer (WPT) for electric vehicle (EV) charging has received significant attention due to several advantages, including ease of use, safety, low maintenance requirements, weather resistance, etc. This paper presents control, design, and prototype configuration resonant inductive LCL-LCL topology based WPT system. estimation values ratings components individual sections on the designed parameters are explained in detail. experimental results verify design show...

Abstract Fiber laser welding is conducted on 0.5 mm SS-316L steel plates. Microstructural evaluation in fusion zone (FZ) of welded specimens are investigated at three different speeds. Autogenous process favors epitaxial grain growth the FZ. The morphology delta ferrite changed from skeletal to lathy with increase speed and further higher 1000 mm/min cellular structure developed XRD patterns demonstrate existence δ-ferrite FZ all conditions. tensile properties weldments increased due change...

Area scaling of 6T SRAM cells has stagnated in advanced technology nodes [1]. The conventional bitcell is bulky because two pull-down NMOSs, which are sized to ensure cell stability. In this work, we present alternative 4T and that eliminate these transistors. A cell, so designed, 10-13% denser than a bitcell. typically suffer from low data retention time need be refreshed regularly. We apply Adaptive Body Bias alleviate the problem. 18nm FD-SOI technology, problem completely mitigated,...

Poppet valves used in internal combustion engines have a high risk of failure due to significant temperature and pressure. These poppet need surface finishing at the nano-scale level prolong their life during working use. In present research, chosen valve has narrow ridge profiles, which is difficult nano-finish by conventional processes certain limitations. The magnetorheological fluid-based method can be effectively for this kind complicated profile. For processing valve, novel magnet...