scholarly journals Nano-Gradient Materials Prepared by Rotary Swaging

Nanomaterials ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 2223
Author(s):  
Qingzhong Mao ◽  
Xiang Chen ◽  
Jiansheng Li ◽  
Yonghao Zhao
Keyword(s):  
Radial Direction ◽  
Research Work ◽  
Industrial Applications ◽  
Texture Gradient ◽  
Gradient Materials ◽  
Rotary Swaging ◽  
Gradient Microstructure ◽  
Cylindrical Workpiece ◽  
Nano Grains ◽  
Micrometer Scale

Gradient nanostructured metallic materials with a nanostructured surface layer show immense potential for various industrial applications because of their outstanding mechanical, fatigue, corrosion, tribological properties, etc. In the past several decades, various methods for fabricating gradient nanostructure have been developed. Nevertheless, the thickness of gradient microstructure is still in the micrometer scale due to the limitation of preparation techniques. As a traditional but potential technology, rotary swaging (RS) allows gradient stress and strain to be distributed across the radial direction of a bulk cylindrical workpiece. Therefore, in this review paper, we have systematically summarized gradient and even nano-gradient materials prepared by RS. We found that metals processed by RS usually possess inverse nano-gradient, i.e., nano-grains appear in the sample center, texture-gradient and dislocation density-gradient along the radial direction. Moreover, a broad gradient structure is distributed from center to edge of the whole processed rods. In addition, properties including micro-hardness, conductivity, corrosion, etc., of RS processed metals are also reviewed and discussed. Finally, we look forward to the future prospects and further research work for the RS processed materials.

Isatin: A Scaffold with Innumerable Biodiversity

2020 ◽  
Vol 20 ◽  
Author(s):  
Priyobrata Nath ◽  
Agnish Mukherjee ◽  
Sougata Mukherjee ◽  
Sabyasachi Banerjee ◽  
Samarpita Das ◽  
...  
Keyword(s):  
Biological Effects ◽  
Scientific Information ◽  
Research Work ◽  
Chemical Properties ◽  
Industrial Applications ◽  
Biologically Relevant ◽  
Extensive Information ◽  
Relevant Compound ◽  
A Minor ◽  
Clinical Conditions

: Isatin is an endogenous and a significant category of fused heterocyclic component, widely been a part of several potential biologically useful synthetics. Since its discovery, tons of research work has been conducted with respect to the synthesis, chemical properties, and biological and industrial applications. It contains indole nucleus having both lactam and keto moiety which while being a part of a molecular framework exerted several biological effects, viz.; antimicrobial, antitubercular, anticonvulsant, anticancer etc. Isatin derivatives are synthetically significant substrates, which can be utilized for the synthesis of huge diversified chemical entities of which few members emerged to be a drug. The reason for this review is to provide extensive information pertaining to the chemistry and its significance in altering several pathological states of isatin and its derivatives. A Structure Activity Relationships study thus developed through a gamut of scientific information indicates the importance of mostly electron withdrawing groups, halogens, nitro, alkoxy and to a minor extent groups with positive inductive effects, such as methyl at position 1, 5, 6 and 7 of isatin in alleviating several clinical conditions. It is also observed from the survey that the presence of two oxo groups at position 2 and 3 sometimes become insignificant as fusion with a heterocycle at those position resulted in a biologically relevant compound.

Development and Achievements of SSM Processes for High Performance Components

2016 ◽  
Vol 256 ◽  
pp. 319-327 ◽  
Author(s):  
Mario Rosso ◽  
Ildiko Peter ◽  
Ivano Gattelli
Keyword(s):  
Industrial Development ◽  
High Performance ◽  
Rear Axle ◽  
Research Work ◽  
Industrial Applications ◽  
Alternative Methods ◽  
Front Suspension ◽  
Large Numbers ◽  
Automotive Parts ◽  
High Level

During the last decades under the enthusiastic and competent guidance of Mr Chiarmetta SSM processes attained in Italy at Stampal Spa (Torino) an unquestionable high level of industrial development with the production of large numbers of high performance automotive parts, like variety of suspension support, engine suspension mounts, steering knuckle, front suspension wheel, arm and rear axle. Among the most highlighted findings SSM processes demonstrated their capability to reduce the existing gap between casting and forging, moreover during such a processes there are the opportunity to better control the defect level.Purpose of this paper is to highlight the research work and the SSM industrial production attained and developed by Mr G.L. Chiarmetta, as well as to give an overview concerning some alternative methods for the production of enhanced performance light alloys components for critical industrial applications and to present an analysis of a new rheocasting process suitable for the manufacturing of high performance industrial components.

scholarly journals VLSI implementation of Wallace Tree Multiplier using Ladner-Fischer Adder

2021 ◽  
Vol 14 (1) ◽  
pp. 22-31
Author(s):  
Kommalapati Monica ◽  
◽  
Dereddy Anuradha ◽  
Syed Rasheed ◽  
Barnala Shereesha ◽  
...  
Keyword(s):  
Power Consumption ◽  
Field Programmable Gate Array ◽  
Finite Impulse Response ◽  
Research Work ◽  
Industrial Applications ◽  
Booth Multiplier ◽  
Wallace Tree ◽  
Look Up Table ◽  
Field Programmable ◽  
Wallace Tree Multiplier

Nowadays, most of the application depends on arithmetic designs such as an adder, multiplier, divider, etc. Among that, multipliers are very essential for designing industrial applications such as Finite Impulse Response, Fast Fourier Transform, Discrete cosine transform, etc. In the conventional methods, different kind of multipliers such as array multiplier, booth multiplier, bough Wooley multiplier, etc. are used. These existing multipliers are occupied more area to operate. In this study, Wallace Tree Multiplier (WTM) is implemented to overcome this problem. Two kinds of multipliers have designed in this research work for comparison. At first, existing WTM is designed with normal full adders and half adders. Next, proposed WTM is designed using Ladner Fischer Adder (LFA) to improve the hardware utilization and reduce the power consumption. Field Programmable Gate Array (FPGA) performances such as slice Look Up Table (LUT), Slice Register, Bonded Input-Output Bios (IOB) and power consumption are evaluated. The proposed WTM-LFA architecture occupied 374 slice LUT, 193 slice register, 59 bonded IOB, and 26.31W power. These FPGA performances are improved compared to conventional multipliers such asModified Retiming Serial Multiplier (MRSM), Digit Based Montgomery Multiplier (DBMM), and Fast Parallel Decimal Multiplier (FPDM).

Ultrafine Grain Structure Development in Aluminium Alloy by Strain Hardening using CCGP

2021 ◽  
Vol 1 (2) ◽  
pp. 25-31
Author(s):  
HS Siddesha ◽  
Suhaaskapardhi BS ◽  
Goutham C
Keyword(s):  
Tensile Strength ◽  
Aluminium Alloy ◽  
Research Work ◽  
Industrial Applications ◽  
Grain Structure ◽  
Ultrafine Grain ◽  
Fine Grained ◽  
Processed Material ◽  
Super Plastic ◽  
Ultrafine Grain Structure

Severe Plastic Deformation (SPD) processes are for developing ultrafine grained (UFG) structured materials for different Industrial applications. Cyclic Constrained Groove Pressing (CCGP) is a technique, produce fine grained structures in metallic sheets or plates in mass production. The objective of research work is to investigate the influence of CCGP processing on the super plastic behaviour of an Aluminium alloy. Samples in “ascast” materials processed by CCGP with as cast, 1, 2, 3 and 4 passes. Processed Material study for microhardness and Tensile strength mechanical properties test were done for different test specimens. Grain refinement, microhardness and Tensile strength increased with the number of CCGP passes.

scholarly journals Visible Light Communications for Industrial Applications—Challenges and Potentials

Electronics ◽  
2020 ◽  
Vol 9 (12) ◽  
pp. 2157
Author(s):  
Yousef Almadani ◽  
David Plets ◽  
Sander Bastiaens ◽  
Wout Joseph ◽  
Muhammad Ijaz ◽  
...  
Keyword(s):  
Visible Light ◽  
Electromagnetic Interference ◽  
Industry 4.0 ◽  
High Speed ◽  
Data Exchange ◽  
Research Work ◽  
Industrial Applications ◽  
Smart Manufacturing ◽  
Low Latency ◽  
Visible Light Communications

Visible Light Communication (VLC) is a short-range optical wireless communication technology that has been gaining attention due to its potential to offload heavy data traffic from the congested radio wireless spectrum. At the same time, wireless communications are becoming crucial to smart manufacturing within the scope of Industry 4.0. Industry 4.0 is a developing trend of high-speed data exchange in automation for manufacturing technologies and is referred to as the fourth industrial revolution. This trend requires fast, reliable, low-latency, and cost-effective data transmissions with fast synchronizations to ensure smooth operations for various processes. VLC is capable of providing reliable, low-latency, and secure connections that do not penetrate walls and is immune to electromagnetic interference. As such, this paper aims to show the potential of VLC for industrial wireless applications by examining the latest research work in VLC systems. This work also highlights and classifies challenges that might arise with the applicability of VLC and visible light positioning (VLP) systems in these settings. Given the previous work performed in these areas, and the major ongoing experimental projects looking into the use of VLC systems for industrial applications, the use of VLC and VLP systems for industrial applications shows promising potential.

Preparation and characterization of pulsed electrodeposited cobalt–graphene nanocomposite coatings

2019 ◽  
Vol 233 (12) ◽  
pp. 2469-2477 ◽  
Author(s):  
R Raveen ◽  
J Yoganandh ◽  
S SathieshKumar ◽  
N Neelakandeswari
Keyword(s):  
Steel Substrate ◽  
Research Work ◽  
Low Carbon Steel ◽  
Trisodium Citrate ◽  
Nanocomposite Coating ◽  
Industrial Applications ◽  
Nanocomposite Coatings ◽  
Low Carbon ◽  
Mechanical And Tribological Properties ◽  
Graphene Nanocomposite

Cobalt–graphene nanocomposite coatings possess unique mechanical and tribological properties which attract researchers to explore its potential for various industrial applications. This research work presents the investigation on cobalt–graphene nanocomposite coatings, with two different graphene compositions cobalt–graphene (0.15 and 0.45 wt%) prepared by pulsed electrodeposition from aqueous bath involving cobalt chloride, trisodium citrate, and citric acid on low carbon steel substrate. Studies on coating morphology, microhardness, tribological characteristics such as wear and corrosion for the cobalt–graphene nanocomposite coatings were reported. Cobalt–graphene (0.45 wt%) nanocomposite coating which exhibits low wear rate in all load conditions due to the self-lubricating property of graphene and cobalt–graphene (0.15 wt%) nanocomposite coating shows higher corrosion resistance due to its layered cauliflower surface morphology.

Applying Fuzzy Logic for Optimal Placement of XBOX Kinect Sensors for Industrial Applications

2012 ◽  
Vol 628 ◽  
pp. 433-439 ◽  
Author(s):  
Nima Rafibakhsh ◽  
H. Felix Lee ◽  
Jie Gong ◽  
Hoo Sang Ko ◽  
Arefeh Mohammadi
Keyword(s):  
Fuzzy Logic ◽  
Real Time ◽  
Research Work ◽  
Research Area ◽  
Industrial Applications ◽  
Optimal Placement ◽  
Work Place ◽  
Manufacturing Operations ◽  
Xbox Kinect ◽  
Active Research

Automated acquisition of sensing data is an active research area in manufacturing domain. A great deal of research work has been focused on automated data acquisitionapplied to various subjects related to manufacturing operations such as safety, performance improvement, monitoring and layout planning. Laser scanners including Time of Flight cameras play a significant role in real time or near real time decision makings in manufacturing automation. To establish an automated sensing system in a work place, enough test data should be available regarding the performance characteristics. This paper investigates the performance of Microsoft XBOX Kinect on spatial modeling in large jobsites, and employs fuzzy logic to find optimal placement of Kinect sensors that gives the best resolution.

scholarly journals Three Dimensional Imaging of Structure and Flow—Critical to Advances in Microfluidics

2007 ◽  
Vol 15 (6) ◽  
pp. 18-23
Author(s):  
Carlos Hidrovo ◽  
Terence Lundy
Keyword(s):  
Heat Transfer ◽  
Integrated Circuits ◽  
Three Dimensional ◽  
Microfluidic Devices ◽  
Pem Fuel Cells ◽  
Industrial Applications ◽  
Two Phase ◽  
Microscale Heat Transfer ◽  
Flow Through ◽  
Micrometer Scale

Microfluidics, the study of fluid flow through structures with micrometer scale dimensions, is an increasingly important discipline within a number of commercial and industrial applications. One focus of active microfluidic research at the Stanford University Microscale Heat Transfer Laboratories (MHTL) is mass and heat transport in two-phase flows, which has applications in the cooling of integrated circuits and the management of water created in PEM fuel cells. At its core, two-phase microfluidics is the study of interactions between moving liquids and/or gases and/or solids (though not necessarily stationary) structures. Advanced confocal microscopy, with its ability to visualize and measure both flow and structure on a single instrumental platform, will certainly play a key role in the continuing development of microfluidic devices.

scholarly journals Preparation and Recent Developments of Ti/SnO2-Sb Electrodes

2021 ◽  
Vol 2021 ◽  
pp. 1-13
Author(s):  
Fangcheng Cao ◽  
Jingyi Tan ◽  
Shengping Zhang ◽  
Hongqing Wang ◽  
Caizhen Yao ◽  
...  
Keyword(s):  
Specific Conductivity ◽  
Sol Gel ◽  
Research Work ◽  
Chemical Vapor ◽  
Dip Coating ◽  
Industrial Applications ◽  
Chemical Vapor Deposition Method ◽  
Preparation Methods ◽  
As Doping ◽  
Recent Developments

Ti/SnO2-Sb electrode, which is one of the dimensionally stable anode (DSA) electrodes, offers high specific conductivity, excellent electrocatalytic performance, and great chemical stability. For these reasons, Ti/SnO2-Sb electrode has been extensively studied in the fields of wastewater treatment. This review covers essential research work about the advanced oxidation technology and related DSA electrodes. It gives an overview of preparation methods of SnO2 electrodes, including sol-gel method, dip-coating method, electrodeposition method, chemical vapor deposition method, thermal decomposition method, magnetron sputtering method, and hydrothermal method. To extend service life and improve electrocatalytic efficiency, the review provides comprehensive details about the modification technologies of Ti/SnO2-Sb electrode, such as doping modification, composite modification, and structural modification. In addition, the review discusses common problems in industrial applications of Ti/SnO2-Sb electrode and highlights the promising outlook of Ti/SnO2-Sb electrode.

scholarly journals Dynamic Interaction between Manipulator and Omni-Directional Platform

2013 ◽  
pp. 58-72
Author(s):  
G. R. Nikhade ◽  
V. S. Deshpande ◽  
S. S. Chiddarwar
Keyword(s):  
Arc Welding ◽  
Research Work ◽  
Industrial Applications ◽  
Dynamic Interaction ◽  
Shop Floor ◽  
Welding Robot ◽  
Omnidirectional Mobile Robot ◽  
Welding Operation ◽  
Manipulator Link ◽  
Novel Concept

Recent advancements in mechatronics has led to tremendous development of application of robots for industrial applications involving high health hazards, rough working conditions and difficult to reach locations. Robot assisted welding is one such high risk operation for human being. The industrial arc welding robots are either mounted on the floor, table or on overhead rails. In this scenario, the jobs to be welded are brought to shop floor. However, the on-sight joining of big pipes and structures with precision and speed, demands for mobility of welding robot. In this research work, a novel concept of mounting 5-dof welding robot on the omni-directional platform (Omni-WMR) is implemented to provides immense maneuvering mobility to the manipulator. This paper presents the combined dynamic model of omnidirectional mobile robot for welding operation to study the effect of dynamic interaction between manipulator and mobile platform. Dynamic interaction is carried out to find the variation in torque at manipulator link due to the motion of platform as well as its location on the platform. In addition, the variation in torque developed at platform wheels due to positioning the manipulator at two different locations on platform is accessed. For this, two case studies have been discussed to study the effect of dynamic interaction between manipulator and omni-directional platform.

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